A rice seedling shaft connection device and its use method

Abstract

The present invention discloses a rice seedling shaft connection device, which includes two groups of side connection components, the side connection components include side fixing seats, and the side fixing seats are movably connected to the side connection shafts; a plurality of intermediate connection components, the intermediate connection components include intermediate fixing seats, and the intermediate fixing seats are movably connected to a first intermediate connection shaft and a second intermediate connection shaft that can move relative to or opposite to each other; the side connection components and the intermediate connection components arranged close to the side connection components and the two adjacent groups of intermediate connection components are respectively detachably connected to the rice seedling shaft, and non-circular connection countersunk holes are provided at both ends of the rice seedling shaft, and the side connection shafts can be just inserted into the corresponding connection countersunk holes, and the first intermediate connection shaft and the second intermediate connection shaft can respectively be just inserted into the connection countersunk holes of two adjacent rice seedling shafts; during the rice seedling transplanting process, the present invention can remove a single rice seedling shaft and then insert a new rice seedling shaft with a long felt seedling wound around it, thereby realizing independent seedling replacement at that position, convenient operation, and improving rice seedling transplanting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, in particular to a connecting device for a rice seedling shaft. Background Art

[0002] A rice transplanter is an agricultural planting machine used to plant rice seedlings in paddy fields. Using it for transplanting rice seedlings improves transplanting efficiency and planting quality. When transplanting long felt seedlings, the rice transplanter structure used includes a traveling device, a seedling platform mechanism is provided behind the traveling device, the seedling platform mechanism includes a seedling platform and a long felt seedling rewinding assembly, a number of longitudinal seedling delivery channels are arranged on the seedling platform, the long felt seedling rewinding assembly includes long felt seedling rewinding swing arm support seats symmetrically installed on both sides of the seedling delivery channel, and a long felt seedling rewinding support shaft is connected between the long felt seedling rewinding swing arm support seats. Before transplanting, the long felt seedlings need to be wound on the long felt seedling rewinding support shaft. When the seedlings wound on a long felt seedling rewinding support shaft are used up in advance, the planting personnel need to wind the new long felt seedlings online onto the long felt seedling rewinding support shaft that needs to be replenished. The winding time is long, which affects the transplanting efficiency, and the winding space is limited, which is inconvenient to operate. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the above and / or the existing problems of inconvenience in operation caused by the need to roll seedlings online, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a rice seedling shaft connecting device, which independently installs several rice seedling shafts rolled with rice seedlings on each connecting component, which is convenient for assembly and disassembly. During the rice seedling transplanting process, a single rice seedling shaft can be removed and a new rice seedling shaft rolled with long felt seedlings can be inserted, thereby realizing independent seedling replacement at that position, facilitating operation and improving rice seedling transplanting efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a connecting device for a rice seedling shaft, comprising:

[0007] Two sets of side connection assemblies, each of which includes a side fixing seat, and a side connection shaft is movably connected to the side fixing seat;

[0008] A plurality of intermediate connecting assemblies are provided between the two sets of side connecting assemblies, wherein the intermediate connecting assemblies include an intermediate fixing seat, and a first intermediate connecting shaft and a second intermediate connecting shaft are movably connected to the intermediate fixing seat so as to move relative to or away from each other in the axial direction;

[0009] The side connecting assembly and the intermediate connecting assembly arranged close to the side connecting assembly, as well as the two adjacent groups of intermediate connecting assemblies, are respectively detachably connected to the seedling-releasing shaft. Both ends of the seedling-releasing shaft in the axial direction are provided with non-circular connecting countersunk holes. The side connecting shaft can be just inserted into the corresponding connecting countersunk holes, and the first intermediate connecting shaft and the second intermediate connecting shaft can respectively be just inserted into the connecting countersunk holes of two adjacent seedling-releasing shafts.

[0010] The side connecting seats and the middle fixing seats are respectively fixedly connected to the upper sides of the seedling platforms at both ends of the seedling delivery channel, and the long felt seedlings are pre-wound on the seedling placing shaft. Looking from left to right, each connecting component is the first side connecting component, the first middle connecting component, the second middle connecting component,..., the nth middle connecting component and the second side connecting component, and one end of the side connecting shaft is always outside the side fixing seat; in the initial state, the other end of the side connecting shaft is fitted on the side of the corresponding side fixing seat relative to the middle fixing seat; the seedling placing shaft with the long felt seedlings is installed between the corresponding connecting components from left to right in sequence, and first insert the two seedling placing shafts into the first side fixing seat and the first The first intermediate connecting shaft on the first intermediate fixing seat is inserted into the connecting countersunk hole of the first rice-releasing shaft, and the second intermediate connecting shaft on the first intermediate fixing seat is inserted into the connecting countersunk hole at one end of the second rice-releasing shaft to realize the connection between the first rice-releasing shaft and the side fixing seat and the first intermediate fixing seat. The first and second intermediate fixing seats are connected, and the third seedling-releasing shaft is inserted between the second intermediate fixing seat and the third intermediate fixing seat, so that the first intermediate connecting shaft and the second intermediate connecting shaft on the second intermediate fixing seat are moved back to back, and the first intermediate connecting shaft on the second intermediate fixing seat is inserted into the connecting countersunk hole at the other end of the second seedling-releasing shaft to realize the connection between the second seedling-releasing shaft and the two adjacent intermediate fixing seats. Repeat the above action to realize the connection of n seedling-releasing shafts and corresponding fixing seats, which is easy to install. When the seedlings on a certain seedling-releasing shaft are used up, take the second seedling-releasing shaft as an example to illustrate, so that the first intermediate connecting shaft on the first intermediate fixing seat is inserted into the connecting countersunk hole at the other end of the second seedling-releasing shaft The shaft and the second intermediate connecting shaft move toward each other, the first intermediate connecting shaft and the second intermediate connecting shaft on the second intermediate fixed seat move toward each other, each intermediate connecting shaft leaves the seedling placing shaft, the second seedling placing shaft is removed, and a new seedling placing shaft with long felt seedlings is inserted, and then the first intermediate connecting shaft and the second intermediate connecting shaft on the first intermediate fixed seat move away from each other, the first intermediate connecting shaft and the second intermediate connecting shaft on the second intermediate fixed seat move away from each other, and the connecting shafts are inserted into the corresponding connecting troughs again to realize seedling replacement, which is easy to operate and does not require the long felt seedlings to be wound around the seedling placing shaft online, thereby improving the rice transplanting efficiency; it can be applied to the seedling placing work of long felt seedlings.

[0011] As a further improvement of the present invention, the side connecting assembly also includes a side fixing plate fixedly connected to the front side of the side fixing seat, the side fixing plate and the side fixing seat are rotatably connected to the side positioning shaft, the side positioning shaft in the side fixing seat is threadedly connected to a side sliding block slidably connected to the side fixing seat, and the side sliding block is fixedly connected to one end of the side sliding block relative to the middle fixing seat, and both ends of the rice seedling shaft are fixed with a positioning plate, between the side connecting assembly and the middle connecting assembly, the two positioning plates are respectively attached to one side of the side fixing seat relative to the middle fixing seat and the side of the middle fixing seat relative to the side fixing seat, and the positioning plate is provided with a positioning groove that just matches the side positioning block.

[0012] As a further improvement of the present invention, a first side sliding groove is opened at one end of the side fixing seat corresponding to the middle fixing seat, and the side sliding block includes a side threaded connecting sleeve, on which is fixed a side sliding part that can slide just along the first side sliding groove, and the side positioning block is fixedly connected to the end of the side sliding part extending outside the side fixing seat.

[0013] As a further improvement of the present invention, the side connecting assembly also includes a side position adjustment shaft rotatably connected to the side fixing seat, the axis of the side position adjustment shaft is parallel to the axis of the rice seedling releasing shaft, the side position adjustment shaft is threadedly connected to a side position adjustment block slidably connected to the side fixing seat, the side connecting shaft is provided with an annular side connecting groove, the side position adjustment block is connected to a side plug-in plate which is plugged into the outer periphery of the side connecting shaft through the side connecting groove, and the side connecting shaft can rotate along the side plug-in plate.

[0014] As a further improvement of the present invention, a side transmission shaft is rotatably connected to the side fixed seat, one end of the side transmission shaft is above the side fixed seat, and the other end of the side transmission shaft is rotatably connected to the side fixed seat, and a side worm gear is fixedly connected to the side transmission shaft in the side fixed seat, and a side worm gear that cooperates with the side worm gear is rotatably connected to the side fixed seat, and the side worm gear is transmission-connected to the side position adjustment shaft.

[0015] As a further improvement of the present invention, a side mounting groove is formed at one end of the side fixing seat away from the middle fixing seat in the axial direction, and one end of the side worm gear and the side position adjusting shaft opposite to the side mounting groove is fixedly connected to the side driving wheel and the side transmission wheel respectively. The side driving wheel is connected to the side transmission belt and the side transmission wheel, and the side fixing seat is connected to the side limiting plate through the side mounting groove, and the side driving wheel and the side transmission wheel are both provided with a circular side rotating countersunk hole on the outward side. Two side rotating support parts corresponding to the side rotating countersunk holes are fixed on the side of the side limiting plate opposite to the side worm, and the side limiting plate is fitted on the outside of the side driving wheel and the side transmission wheel, and the side rotating support parts are just inserted into the corresponding side rotating countersunk holes.

[0016] As a further improvement of the present invention, the front part of the intermediate fixed seat is rotatably connected to two intermediate positioning shafts arranged at intervals in the axial direction, and the intermediate positioning shafts are threadedly connected with intermediate sliding blocks. The ends of the two intermediate sliding blocks away from each other extend out of the left and right ends of the intermediate fixed seat respectively, and the ends of the intermediate sliding blocks extending out of the intermediate fixed seat are fixedly connected to the intermediate positioning blocks, and the intermediate positioning blocks can be just inserted into the corresponding positioning grooves.

[0017] As a further improvement of the present invention, the first intermediate connecting shaft and the second intermediate connecting shaft can rotate in the intermediate fixed seat and can also move in the intermediate fixed seat. The first intermediate connecting shaft and the second intermediate connecting shaft are respectively provided with an annular first intermediate connecting groove and a second intermediate connecting groove. The intermediate fixed seat is also rotatably connected with an intermediate position adjustment shaft. The intermediate position adjustment shaft is threadedly connected with a first intermediate position adjustment block and a second intermediate position adjustment block that are slidably connected in the intermediate fixed seat and can move toward or away from each other. The first intermediate position adjustment block is fixed with a first intermediate plug-in plate, and the second intermediate position adjustment block is fixed with a second intermediate plug-in plate. The first intermediate plug-in plate is plugged into the outer periphery of the first intermediate connecting shaft through the first intermediate connecting groove, and the second intermediate plug-in plate is plugged into the outer periphery of the second intermediate connecting shaft through the second intermediate connecting groove.

[0018] The transmission gear of the present invention is a gear which is connected with the gear train of the intermediate gear and the gear train is connected with the gear train of the intermediate gear via the gear train of the intermediate gear.

[0019] The method for connecting a rice seedling shaft using a rice seedling shaft connecting device comprises the following steps:

[0020] Before preparing to transplant rice seedlings, install each rice seedling shaft on the rice seedling platform, insert the two rice seedling shafts into the side connecting components and the corresponding middle components and the two sets of middle connecting components close to the corresponding side connecting components respectively, and insert the two positioning plates at both ends of the rice seedling shaft into the corresponding side positioning blocks or middle positioning blocks respectively through the positioning grooves to realize the preliminary positioning of the rice seedling shaft;

[0021] The side transmission shaft is rotated, and the side transmission shaft drives the side driving wheel to rotate via the side worm gear, and the side driving wheel drives the side transmission wheel to rotate via the side transmission belt, and the side transmission wheel drives the side position adjustment block to move via the side position adjustment shaft, and the side position adjustment block drives the side connecting shaft to move, and the rotation direction of the side transmission shaft is adjusted so that the side connecting shaft moves toward the direction of the positioning plate, and the side connecting shaft is inserted into the connecting countersunk hole so that it contacts the rice seedling placing shaft;

[0022] The intermediate transmission shaft close to the side connecting assembly is rotated, and the intermediate transmission shaft drives the intermediate driving wheel to rotate via the intermediate worm gear, and the intermediate driving wheel drives the intermediate transmission wheel to rotate via the intermediate transmission belt, and the intermediate transmission wheel drives the first intermediate position adjusting block and the second intermediate position adjusting block to move via the intermediate position adjusting shaft, and the rotation direction of the intermediate transmission shaft is adjusted so that the first intermediate position adjusting block and the second intermediate position adjusting block move opposite to each other, and the first intermediate position adjusting block and the second intermediate position adjusting block respectively drive the first intermediate connecting shaft and the second intermediate connecting shaft to move in the direction of the corresponding positioning plate, so that the first intermediate connecting shaft and the second intermediate connecting shaft are respectively inserted into the connecting countersunk holes at one end of the adjacent two rice-releasing shafts opposite to each other, thereby realizing the installation of the first rice-releasing shaft between the side connecting assembly and the corresponding intermediate connecting assembly;

[0023] Then insert the third rice-laying shaft between the other two sets of intermediate connecting assemblies, insert the positioning plate into the corresponding two intermediate positioning blocks, rotate the intermediate transmission shaft on the second set of intermediate connecting assemblies, so that the first intermediate connecting shaft and the second intermediate connecting shaft in the set of intermediate connecting assemblies are respectively moved toward the direction where the corresponding rice-laying shaft is located until they come into contact with the corresponding rice-laying shaft, stop rotating the intermediate transmission shaft, and the installation of the second rice-laying shaft is completed;

[0024] Repeat the above steps to install the third, fourth, and nth seedling-releasing shafts, and rotate each positioning shaft to move the positioning block away from the positioning plate to a suitable position, and prepare for transplanting.

[0025] The second and third intermediate connecting shafts are respectively connected to the second intermediate connecting shaft and the third intermediate connecting shaft, and the new intermediate connecting shaft with the seedlings is installed. The position of the intermediate connecting shaft is adjusted so that the positioning groove is aligned with the corresponding positioning block, and the intermediate positioning shafts in the second and third intermediate connecting shafts are rotated so that the intermediate positioning blocks are inserted into the corresponding intermediate positioning grooves. The intermediate transmission shafts in the second and third intermediate connecting shafts are rotated so that the corresponding first and second intermediate connecting shafts move toward each other, and the first and second intermediate connecting shafts leave the intermediate connecting shaft and retract into the corresponding intermediate fixed seats. The third intermediate connecting shaft is removed, and the new intermediate connecting shaft with the seedlings is inserted into the intermediate positioning blocks between the second and third intermediate components. The two intermediate transmission shafts are rotated so that the corresponding first and second intermediate connecting shafts move away from each other, and the first and second intermediate connecting shafts are inserted into the corresponding intermediate connecting shafts again to achieve seedling replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0027] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0028] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0029] Figure 3 Figure 1 A partial enlarged view of point B in the middle.

[0030] Figure 4 The three-dimensional structure of the present invention Figure 2 .

[0031] Figure 5 for Figure 4 A partial enlarged view of point C in the middle.

[0032] Figure 6 for Figure 4 A partial enlarged view of point D in the middle.

[0033] Figure 7 for Figure 4 A partial enlarged view of point E in the middle.

[0034] Figure 8It is a three-dimensional structural diagram of the side limiting plate in the present invention.

[0035] Figure 9 It is a three-dimensional structural diagram of the middle limiting plate in the present invention.

[0036] Figure 10 This is a three-dimensional structural diagram after hiding one side fixed top seat and one middle fixed top seat in the present invention.

[0037] Figure 11 for Figure 10 A partial enlarged view of point F in the middle.

[0038] Figure 12 for Figure 10 A partial enlarged view of point G in the middle.

[0039] Figure 13 It is a three-dimensional structural diagram of the side fixed top seat in the present invention.

[0040] Figure 14 It is a three-dimensional structural diagram of the middle fixed top seat in the present invention.

[0041] Figure 15 It is a three-dimensional structural diagram of the first intermediate connecting shaft in the present invention.

[0042] Figure 16 It is a three-dimensional structural diagram of the second intermediate connecting shaft in the present invention.

[0043] Figure 17 The three-dimensional structure of the present invention Figure 3 .

[0044] Figure 18 It is a three-dimensional structural diagram of the rice seedling shaft in the present invention.

[0045] In the figure, 100 side connection assembly, 101 side fixing seat, 101a side fixing base, 101a-1 first lower side connection sink, 101a-2 lower side sliding port, 101a-3 first lower connection sink, 101a-4 second lower connection sink, 101a-5 first lower mounting port, 101b side fixing top seat, 101b-1 first side sliding slot, 101b-2 first upper side connection sink, 101b-3 first upper mounting port, 101b-4 third side connection sink, 101b-5 first upper connection sink, 101b-6 second upper connection sink, 101b-7 upper sliding port, 102 side connecting shaft, 102a side connection slot, 1 03 side limiting plate, 103a side rotation support part, 104 side fixing plate, 105 side positioning block, 106 side limiting sleeve, 107 side rotating wheel, 108 side sliding block, 108a side sliding part, 109 side positioning shaft, 110 side position adjustment block, 110a side plug-in plate, 111 side transmission belt, 112 side position adjustment shaft, 113 side worm, 114 side worm wheel, 115 side transmission shaft, 116 side driving wheel, 117 side transmission wheel, 200 intermediate connecting assembly, 201 intermediate limiting plate, 201a intermediate rotation support part, 202 intermediate transmission shaft, 203 intermediate fixing seat, 203a intermediate fixed base, 203a-1 first lower intermediate connecting groove , 203a-2 lower middle sliding port, 203a-3 second lower connecting sink, 203a-4 second lower middle connecting sink, 203b middle fixed top seat, 203b-1 first middle sliding slot, 203b-2 third middle connecting sink, 203b-3 second upper connecting sink, 203b-4 upper middle sliding port, 203b-5 first upper middle connecting sink, 203b-6 second upper mounting port, 203b-7 second upper middle connecting sink, 204 middle fixed plate, 205 middle rotating wheel, 205a middle handle, 206 middle limiting sleeve, 207 middle positioning block, 208 middle sliding block, 208a middle sliding portion, 209 middle Positioning shaft, 210 second intermediate connecting shaft, 210a second intermediate connecting groove, 210b sliding support part, 211 first intermediate connecting shaft, 211a first intermediate connecting groove, 211b sliding support groove, 212 intermediate worm, 213 first intermediate position adjustment block, 213a first intermediate plug-in plate, 214 intermediate position adjustment shaft, 215 intermediate transmission belt, 216 intermediate worm gear, 217 second intermediate position adjustment block, 217a second intermediate plug-in plate, 218 intermediate transmission belt, 219 intermediate transmission wheel, 220 intermediate transmission belt, 221 intermediate driving wheel, 300 rice seedling placing shaft, 301 positioning plate, 301a positioning sinking groove, 301b connecting sinking hole. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments. Example 1

[0049] Reference Figure 1 、 Figure 11 、 Figure 12 and Figure 18 This is the first embodiment of the present invention. This embodiment provides a connecting device for the rice seedling shaft 300, which facilitates the installation between the rice seedling shaft 300 and the rice seedling platform, makes it easy to replace the seedlings, and improves the efficiency of transplanting rice seedlings.

[0050] A connecting device for a rice seedling shaft 300, comprising two sets of side connecting assemblies 100, wherein the side connecting assemblies 100 include side fixing seats 101, on which side connecting shafts 102 are movably connected; a plurality of intermediate connecting assemblies 200 are arranged between the two sets of side connecting assemblies 100, wherein the intermediate connecting assemblies 200 include intermediate fixing seats 203, on which first intermediate connecting shafts 211 and second intermediate connecting shafts 210 are movably connected and move relative to or opposite to each other in the axial direction; the side connecting assemblies 100 and the side connecting assemblies 100 are close to each other. 0 and between two adjacent groups of intermediate connecting assemblies 200, the rice-releasing shaft 300 is detachably connected. Both ends of the rice-releasing shaft 300 in the axial direction are provided with non-circular connecting countersunk holes 301b, and the side connecting shaft 102 can be just inserted into the corresponding connecting countersunk holes 301b. After the side connecting shaft 102 is inserted into the corresponding connecting countersunk holes 301b, it contacts the rice-releasing shaft 300. The first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 can be just inserted into the connecting countersunk holes 301b of the two adjacent rice-releasing shafts 300, respectively.

[0051] The side connecting seat and the middle fixed seat 203 are respectively fixedly connected to the upper side of the seedling platform at both ends of the seedling delivery channel, and the long felt seedlings are pre-wound on the seedling placing shaft 300. Looking from left to right, each connecting component is the first side connecting component 100, the first middle connecting component 200, the second middle connecting component 200,..., the nth middle connecting component 200 and the second side connecting component 100, and one end of the side connecting shaft 102 is always outside the side fixed seat 101; in actual implementation, support seats are respectively fixed on the seedling platform on the left side of the first side fixed seat 101 and on the right side of the second side fixed seat 101, and a power input shaft for connecting one end of the side connecting shaft 102 is rotatably connected to the support seat. One end of the side connecting shaft 102 is a non-circular shape, and the power One end of the side fixing seat 101 opposite to the input shaft is provided with a supporting groove of the same shape as one end of the side connecting shaft 102, and the side connecting shaft 102 can just slide along the supporting groove, and one end of the side connecting shaft 102 is always in the supporting groove. When transplanting rice seedlings, the power input shaft transmits power to the side connecting shaft 102, and the side connecting shaft 102 drives each rice seedling shaft 300 and the middle connecting shaft to rotate (the structure that provides power to the power input shaft is not the technology of this application); in the initial state, the other end of the side connecting shaft 102 is fitted on the side of the corresponding side fixing seat 101 relative to the middle fixing seat 203; the rice seedling shaft 300 with the long felt seedling wrapped around it is installed in the corresponding connecting assembly from left to right in sequence, and the two rice seedling shafts 300 are first inserted into the first side fixing seat 1 01 and the first intermediate fixing seat 203 and between the first intermediate fixing seat 203 and the second intermediate fixing seat 203, so that the side connecting shaft 102 moves toward the direction of the first rice-releasing shaft 300, the first intermediate connecting shaft 211 on the first intermediate fixing seat 203 moves toward the direction of the first rice-releasing shaft 300, the second intermediate connecting shaft 210 on the first intermediate fixing seat 203 moves toward the direction of the second rice-releasing shaft 300, the side connecting shaft 102 and the first intermediate connecting shaft 211 on the first intermediate fixing seat 203 are inserted into the connecting countersunk hole 301b of the first rice-releasing shaft 300, and the second intermediate connecting shaft 210 on the first intermediate fixing seat 203 is inserted into the connecting countersunk hole at one end of the second rice-releasing shaft 300 301b, realize the connection of the first rice-releasing shaft 300 and the side fixing seat 101, the first intermediate fixing seat 203 and the preliminary connection of the second rice-releasing shaft 300, then insert the third rice-releasing shaft 300 between the second intermediate fixing seat 203 and the third intermediate fixing seat 203, so that the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 on the second intermediate fixing seat 203 move away from each other, so that the first intermediate connecting shaft 211 on the second intermediate fixing seat 203 is inserted into the connecting countersunk hole 301b at the other end of the second rice-releasing shaft 300, realize the connection of the second rice-releasing shaft 300 and the two adjacent intermediate fixing seats 203, repeat the above action to realize the connection of n rice-releasing shafts 300 and the corresponding fixing seats, which is easy to install;When the rice seedlings on a certain rice seedling placing shaft 300 are used up, the second rice seedling placing shaft 300 is explained as an example, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 on the first intermediate fixing seat 203 are moved toward each other, and the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 on the second intermediate fixing seat 203 are moved toward each other, and each intermediate connecting shaft leaves the rice seedling placing shaft 300, the second rice seedling placing shaft 300 is removed, and a new rice seedling placing shaft 300 with the long felt seedlings is inserted. Then, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 on the first intermediate fixing seat 203 are moved away from each other, and the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 on the second intermediate fixing seat 203 are moved away from each other, and the connecting shafts are inserted into the corresponding connecting countersunk holes 301b again, so that the rice seedlings are replenished. The operation is convenient, and there is no need to wind the long felt seedlings online around the rice seedling placing shaft 300, thereby improving the rice transplanting efficiency. The invention can be applied to the rice seedling placing operation of long felt seedlings. Example 2

[0052] Reference Figures 1 to 9 、 Figure 15 and Figure 16 , which is the second embodiment of the present invention, provides a method for installing a rice-planting shaft using a rice-planting shaft connecting device, which can further achieve flexible installation of each rice-planting shaft 300.

[0053] Specifically, the side connection assembly 100 also includes a side fixing plate 104 fixedly connected to the front side of the side fixing seat 101, and a side positioning shaft 109 is rotatably connected to the side fixing plate 104 and the side fixing seat 101. A side mounting countersunk hole corresponding to the side positioning shaft 109 is opened at one end of the side fixing plate 104 away from the side fixing seat 101, and a side limiting sleeve 106 is sleeved on the side positioning shaft 109 at the side mounting countersunk hole. The side limiting sleeve 106 is fixedly connected to the side fixing plate 104 and contacts the side positioning shaft 109 to limit the axial movement of the side positioning shaft 109. A side rotating wheel 107 is fixedly connected to the side positioning shaft 109 outside the side fixing plate 104, and a side sliding block 108 slidably connected to the side fixing seat 101 is threadedly connected to the side positioning shaft 109 inside the side fixing seat 101. The side sliding block 108 is relative to the middle fixing seat 2 One end of 03 is fixedly connected to a side positioning block 105, and both ends of the rice seedling shaft 300 are fixed with a positioning plate 301. Between the side connecting component 100 and the middle connecting component 200, the two positioning plates 301 are respectively attached to the side of the side fixing seat 101 relative to the middle fixing seat 203 and the side of the middle fixing seat 203 relative to the side fixing seat 101. A positioning groove 301a is provided on the positioning plate 301, which just matches the side positioning block 105. A first side sliding groove 101b-1 is provided at one end of the side fixing seat 101 corresponding to the middle fixing seat 203. The side sliding block 108 includes a side threaded connection sleeve, and a side sliding part 108a is fixed on the side threaded connection sleeve, which can just slide along the first side sliding groove 101b-1. The side positioning block 105 is fixedly connected to the end of the side sliding part 108a extending out of the side fixing seat 101.

[0054] In the initial state, the position of the side positioning block 105 is where the positioning plate 301 can be just inserted into the side positioning block 105; when installing the first and second rice-releasing shafts 300, the first rice-releasing shaft 300 with the long felt seedlings wound around it is placed between the first side fixing seat 101 and the first middle fixing seat 203, and the positioning plate 301 is inserted and abutted against the side positioning block 105. At this time, the two positioning plates 301 are respectively aligned with the side connecting shaft 102 and the middle connecting shaft to achieve preliminary positioning and support of the rice-releasing shaft 300.

[0055] Specifically, the side connecting assembly 100 also includes a side position adjustment shaft 112 rotatably connected to the side fixing seat 101, the axis of the side position adjustment shaft 112 is parallel to the axis of the rice seedling placing shaft 300, and the side position adjustment shaft 112 is threadedly connected to a side position adjustment block 110 slidably connected to the side fixing seat 101, and an annular side connecting groove 102a is opened on the side connecting shaft 102, and the side position adjustment block 110 is connected to a side plug-in plate 110a which is plugged into the outer periphery of the side connecting shaft 102 through the side connecting groove 102a, and the side connecting shaft 102 can rotate along the side plug-in plate 110a, and the side fixing seat 101 is rotatably connected to a side transmission shaft 115, one end of the side transmission shaft 115 is above the side fixing seat 101, and the other end of the side transmission shaft 115 is rotatably connected to the side fixing seat 101, and a side worm gear 114 is fixedly connected to the side transmission shaft 115 in the side fixing seat 101, and the side fixing seat 101 is rotatably connected to The side worm 113 cooperates with the side worm gear 114, and the side worm 113 is connected to the side position adjustment shaft 112 in a transmission manner. The side fixed seat 101 is provided with a side mounting groove at one end away from the middle fixed seat 203 in the axial direction. The side worm 113 and the side position adjustment shaft 112 are fixedly connected to the side driving wheel 116 and the side transmission wheel 117 at one end of the side mounting groove. The side driving wheel 116 is connected to the side transmission wheel 117 via the side transmission belt 111. The seat 101 is connected to the side limit plate 103 through the side mounting groove. The side driving wheel 116 and the side transmission wheel 117 are both provided with circular side rotation countersunk holes on the outward side. Two side rotation support parts 103a corresponding to the side rotation countersunk holes are fixed on the side of the side limit plate 103 opposite to the side worm 113. The side limit plate 103 is attached to the outer side of the side driving wheel 116 and the side transmission wheel 117, and the side rotation support parts 103a are just inserted into the corresponding side rotation countersunk holes.

[0056] When the first rice-releasing shaft 300 is connected to the first side fixed seat 101, the two positioning plates 301 on the first rice-releasing shaft 300 are aligned with the first side positioning block 105 and the middle positioning block 207 at the left end of the first middle fixed seat 203, and the two positioning plates 301 on the second rice-releasing shaft 300 are aligned with the middle positioning blocks 207 at the right end of the second middle fixed seat 203 and the left end of the third middle fixed seat 203. The first rice-releasing shaft 300 is plugged into the first side positioning block 105 and the first middle positioning block 207, and the second rice-releasing shaft 300 is plugged into the two middle positioning blocks 207. The side transmission shaft 115 is rotated, and the side transmission shaft 115 drives the side worm gear 114 to rotate, and the side worm gear 114 drives the side driving wheel 116 via the side worm 113. Rotate, the side driving wheel 116 drives the side transmission wheel 117 to rotate through the side transmission belt 111, the side transmission wheel 117 drives the side position adjustment shaft 112 to rotate, and the side position adjustment shaft 112 drives the side position adjustment block 110 to move. In the initial state, one end of the side connecting shaft 102 is in contact with the power input shaft on the inner side of the support sink. At this time, the side transmission shaft 115 can only rotate in one direction. Rotate the side transmission shaft 115 above the side fixed seat 101 to move the side connecting shaft 102 toward the direction of the first rice seedling shaft 300. The other end of the side connecting shaft 102 is inserted into the connecting sink hole 301b, and the side connecting shaft 102 is in contact with the rice seedling shaft 300. Stop rotating the side transmission shaft 115 to achieve the connection between the first rice seedling shaft 300 and the side connecting shaft 102.

[0057] Specifically, the front part of the intermediate fixing seat 203 is rotatably connected to two intermediate positioning shafts 209 spaced apart in the axial direction, the front side of the intermediate fixing seat 203 is fixedly connected to the intermediate fixing plate 204, and the intermediate fixing plate 204 has an intermediate mounting hole corresponding to the intermediate positioning shaft 209 on the front side. An intermediate limiting sleeve 206 is sleeved on the intermediate positioning shaft 209, and the intermediate limiting sleeve 206 is fixedly connected to the intermediate fixing plate 204. The intermediate limiting sleeve 206 contacts the intermediate positioning shaft 209 to limit the axial movement of the intermediate positioning shaft 209. The front end of the intermediate positioning shaft 209 is fixedly connected The intermediate rotating wheel 205 is connected to the outside of the intermediate fixed plate 204, and the intermediate sliding block 208 is threadedly connected to the intermediate positioning shaft 209. The left and right ends of the intermediate fixed seat 203 are each provided with a first intermediate sliding groove 203b-1. The intermediate sliding block 208 is fixed with an intermediate sliding portion 208a that can extend out of the first intermediate sliding groove 203b-1. The intermediate sliding portion 208a can just slide back and forth along the first intermediate sliding groove 203b-1. The ends of the two intermediate sliding blocks 208 that are away from each other are respectively extended out of the intermediate fixed seat 203 through the corresponding first intermediate sliding groove 203b-1. The intermediate sliding block 208 extends out of the intermediate fixed seat 203 and is fixedly connected to the intermediate positioning block 207 at one end. The intermediate positioning block 207 can be just inserted into the corresponding positioning groove 301a. The first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 can rotate in the intermediate fixed seat 203 and can also move in the intermediate fixed seat 203. The first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 are respectively provided with an annular first intermediate connecting groove 211a and a second intermediate connecting groove 210a. The intermediate fixed seat 203 is also rotatably connected to the intermediate position adjustment shaft 214. The intermediate position adjustment The shaft 214 is threadedly connected to a first intermediate position adjustment block 213 and a second intermediate position adjustment block 217 which are slidably connected within the intermediate fixing seat 203 and can move toward or away from each other. A first intermediate plugboard 213a is fixed to the first intermediate position adjustment block 213, and a second intermediate plugboard 217a is fixed to the second intermediate position adjustment block 217. The first intermediate plugboard 213a is plugged into the outer periphery of the first intermediate connecting shaft 211 through the first intermediate connecting groove 211a, and the second intermediate plugboard 217a is plugged into the outer periphery of the second intermediate connecting shaft 210 through the second intermediate connecting groove 210a.An intermediate mounting groove is formed at one end of the intermediate fixing seat 203 in the left-right direction. An intermediate transmission wheel 219 is fixedly connected to the intermediate position adjustment shaft 214 at the intermediate mounting groove. The intermediate transmission shaft 202 and the intermediate worm 212 are rotatably connected to the intermediate fixing seat 203. One end of the intermediate transmission shaft 202 is above the intermediate fixing seat 203, and the other end of the intermediate transmission shaft 202 is inside the intermediate fixing seat 203. An intermediate worm gear 216 that cooperates with the intermediate worm 212 is fixedly connected to the intermediate transmission shaft 202 in the intermediate fixing seat 203. An intermediate driving wheel 221 is fixedly connected to one end of the intermediate worm gear 216 in the left-right direction. The intermediate driving pulley 221 is connected to the corresponding intermediate transmission pulley 219 via the intermediate transmission belt 215. An intermediate limiting plate 201 is fixedly connected to the intermediate fixing seat 203 in the intermediate mounting groove. Both the intermediate transmission pulley 219 and the intermediate driving pulley 221 have circular intermediate rotation countersunk holes on the ends facing away from the intermediate worm 212. Two intermediate rotation support portions 201a corresponding to the intermediate rotation countersunk holes are fixed to the side of the intermediate limiting plate 201 facing the intermediate worm 212. The intermediate rotation support portions 201a fit neatly into the corresponding intermediate rotation countersunk holes. The intermediate limiting plate 201 fits snugly against the outside of the intermediate driving pulley 221 and the intermediate transmission pulley 219.

[0058] The second intermediate connecting shaft 210 is fixed with a sliding support portion 210b at one end relative to the first intermediate connecting shaft 211, and a sliding support groove 211b corresponding to the sliding support portion 210b is opened at one end of the first intermediate connecting shaft 211 relative to the second intermediate connecting shaft 210, and the sliding support portion 210b can just slide along the sliding support groove 211b; in the initial state, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 are arranged on opposite sides and contact each other. At this time, the intermediate transmission shaft 202 can only rotate in one direction. When the first rice seedling shaft 300 is connected to the first fixed seat , rotate the intermediate transmission shaft 202 on the first intermediate fixed seat 203, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 move opposite to each other, the first intermediate connecting shaft 211 is inserted into the connecting countersunk hole 301b at the right end of the first rice-releasing shaft 300, and the second intermediate connecting shaft 210 is inserted into the connecting countersunk hole 301b at the left end of the second rice-releasing shaft 300, thereby realizing the connection between the first rice-releasing shaft 300 and the first first intermediate connecting shaft 211 and the connection between the second rice-releasing shaft 300 and the first intermediate fixed seat 203, completing the installation of the first rice-releasing shaft 300, and so on. The connection between the rice-laying shaft 300 and the middle fixing seat 203 or the side fixing seat 101 is not described in detail; the side positioning shaft 109 and each middle positioning shaft 209 are rotated to make the side positioning block 105 and the middle positioning block 207 leave the positioning plate 301 to a suitable position; during the rice-planting process, when the long felt seedlings on a certain rice-laying shaft 300 are used up, the middle positioning shafts 209 on both sides of the rice-laying shaft 300 are rotated to make the middle positioning block 207 insert into the corresponding positioning groove 301a, and the two middle transmission shafts 202 on both sides of the rice-laying shaft 300 are rotated, and the second middle connecting shaft 210 is moved towards the position away from the rice-laying shaft 300. When moving in the direction, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 come into conflict with each other, the two intermediate transmission shafts 202 stop rotating, the rice-releasing shaft 300 is removed, and a new rice-releasing shaft 300 with long felt seedlings wrapped therearound is inserted between the two sets of intermediate fixing seats 203. The two intermediate transmission shafts 202 are rotated in the opposite direction so that the second intermediate connecting shaft 210 on the left side of the rice-releasing shaft 300 is inserted into the connecting countersunk hole 301b at the left end, and the first intermediate connecting shaft 211 on the right side of the rice-releasing shaft 300 is inserted into the connecting countersunk hole 301b at the right end, thereby realizing the replacement of the rice-releasing shaft 300, i.e., realizing the replacement of seedlings, and the replacement operation is convenient.

[0059] Example 3

[0060] Reference Figures 1 to 16 This is the third embodiment of the present invention. This embodiment provides a connecting device for a rice seedling shaft 300, which can further realize the installation of a rice seedling shaft 300 wrapped with long felt seedlings and the replacement of rice seedlings when the rice seedlings are exhausted, and is easy to operate.

[0061] The method for connecting the rice-laying shaft 300 using the rice-laying shaft 300 connecting device comprises the following steps:

[0062] Before preparing to transplant rice seedlings, install each rice seedling shaft 300 on the rice seedling platform from left to right. First, insert the two rice seedling shafts 300 between the first side connecting component 100 and the first middle connecting component 200 and the first middle connecting component 200 and the second middle connecting component 200 respectively. The two positioning plates 301 at both ends of the rice seedling shaft 300 are respectively plugged into the corresponding side positioning blocks 105 or the middle positioning blocks 207 through the positioning grooves 301a to achieve the preliminary positioning of the rice seedling shaft 300.

[0063] The side transmission shaft 115 is rotated, and the side transmission shaft 115 drives the side driving wheel 116 to rotate via the side worm gear 114. The side driving wheel 116 drives the side transmission wheel 117 to rotate via the side transmission belt 111. The side transmission wheel 117 drives the side position adjustment block 110 to move via the side position adjustment shaft 112. The side position adjustment block 110 drives the side connecting shaft 102 to move. The rotation direction of the side transmission shaft 115 is adjusted to move the side connecting shaft 102 toward the direction of the positioning plate 301. The side connecting shaft 102 is inserted into the connecting countersunk hole 301b so that it contacts the rice seedling placing shaft 300.

[0064] The intermediate transmission shaft 202 close to the side connection assembly 100 is rotated, and the intermediate transmission shaft 202 drives the intermediate driving wheel 221 to rotate via the intermediate worm gear 216, and the intermediate driving wheel 221 drives the intermediate transmission wheel 219 to rotate via the intermediate transmission belt 215, and the intermediate transmission wheel 219 drives the first intermediate position adjustment block 213 and the second intermediate position adjustment block 217 to move via the intermediate position adjustment shaft 214, and the rotation direction of the intermediate transmission shaft 202 is adjusted so that the first intermediate position adjustment block 213 and the second intermediate position adjustment block 217 move opposite to each other. The first intermediate position adjustment block 213 and the second intermediate position adjustment block 217 respectively drive the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 to move toward the direction of the corresponding positioning plate 301, so that the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 are respectively inserted into the connecting countersunk holes 301b at one end opposite to each other of the two adjacent rice-releasing shafts 300, thereby realizing the installation of the first rice-releasing shaft 300 between the side connection assembly 100 and the corresponding intermediate connection assembly 200;

[0065] Then, the third rice-releasing shaft 300 is inserted between the other two sets of intermediate connecting assemblies 200, and the positioning plate 301 is inserted into the corresponding two intermediate positioning blocks 207. The intermediate transmission shaft 202 on the second set of intermediate connecting assemblies 200 is rotated to move the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 in the set of intermediate connecting assemblies 200 toward the direction where the corresponding rice-releasing shaft 300 is located until they come into contact with the corresponding rice-releasing shaft 300. The rotation of the intermediate transmission shaft 202 is stopped, and the installation of the second rice-releasing shaft 300 is completed.

[0066] Repeat the above steps to install the third, fourth, and nth rice-planting shafts 300, and then rotate the side wheels 107 and the middle handle 205a to move the positioning blocks away from the positioning plate 301 to the appropriate position, and prepare for rice transplanting.

[0067] During the rice transplanting process, assuming that the rice seedlings wound on the third rice seedling shaft 300 are used up, the intermediate connecting components 200 at both ends of the third rice seedling shaft 300 are respectively the second group of intermediate connecting components 200 and the third group of intermediate connecting components 200, and a new rice seedling shaft 300 with rice seedlings wound on it needs to be installed, and the position of the rice seedling shaft 300 is adjusted so that the positioning groove 301a is aligned with the corresponding positioning block, and the intermediate handles 205a in the second group of intermediate connecting components 200 and the third group of intermediate connecting components 200 are rotated so that the intermediate positioning block 207 is inserted into the corresponding intermediate positioning groove 301a, and the intermediate handles 205a in the second group of intermediate connecting components 200 and the third group of intermediate connecting components 200 are rotated. The intermediate transmission shaft 202 causes the corresponding first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 to move toward each other, the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 leave the rice-laying shaft 300, and retract into the corresponding intermediate fixing seat 203, remove the third rice-laying shaft 300, and insert the new rice-laying shaft 300 with the seedlings rolled into the intermediate positioning block 207 between the second group of intermediate components and the third group of intermediate components, rotate the two intermediate transmission shafts 202, so that the corresponding first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 move away from each other, and the first intermediate connecting shaft 211 and the second intermediate connecting shaft 210 are inserted into the corresponding rice-laying shaft 300 again to realize seedling replacement. Example 4

[0068] Reference Figure 17 , which is the fourth embodiment of the present invention. The difference between this embodiment and embodiment 2 is that two intermediate rotating wheels 205 corresponding to the intermediate positioning shafts 209 are rotatably connected to the intermediate fixed plate 204, and the intermediate rotating wheels 205 are fixedly connected to the intermediate positioning shafts 209. The two intermediate rotating wheels 205 on the same intermediate fixed seat 203 are connected through an intermediate transmission belt 215, and an intermediate handle 205a is provided on the front side of any intermediate rotating wheel 205.

[0069] When the position of the intermediate positioning block 207 needs to be adjusted, the corresponding intermediate handle 205a is rotated to make the two intermediate rotating wheels 205 on the same intermediate fixed seat 203 rotate simultaneously, and the corresponding two intermediate positioning shafts 209 rotate synchronously to achieve synchronous adjustment of the positions of the two intermediate positioning blocks 207. Example 5

[0070] Reference Figure 5 、 Figure 8 and Figures 11 to 14, which is the fifth embodiment of the present invention. The difference between this embodiment and embodiment 4 is that it can further facilitate the connection of each transmission shaft, worm, worm wheel, position adjustment shaft and adjustment block.

[0071] Specifically, the side fixing seat 101 includes a side fixing base 101a and a side fixing top seat 101b, the side fixing top seat 101b is fixedly connected to the upper side of the side fixing base 101a, and the upper end of the side fixing base 101a is provided with a first lower side connecting groove 101a-1, and the lower end of the side fixing top seat 101b is provided with a first upper side connecting groove 101b-2 corresponding to the first lower side connecting groove 101a-1. The side positioning shaft 109 is installed between the first lower connecting groove 101a-1 and the first upper connecting groove 101b-5. The inner end of the side positioning shaft 109 can be connected between the first lower connecting groove 101a-1 and the first upper connecting groove 101b-5. The side fixing top seat 101b is provided with a first side sliding groove 101b-1; the side fixing base 101a is provided with a side center hole, and the outer edge of the side connecting shaft 102 can just slide or rotate along the side center hole, and the side center hole is away from the first lower side connecting groove 101a-1. The side fixing base 101a is provided with a lower sliding opening 101a-2 on the side of the side center hole, and the side fixing base 101a is provided with a second lower side connecting groove 101a-4 on the side of the lower sliding opening 101a-2 away from the side center hole. The side fixing top seat 101b is provided with an upper sliding opening 101b-7 corresponding to the lower sliding opening 101a-2 and a second lower connecting groove 101a- 01a-4 corresponds to the second upper connecting groove 101b-6, the left and right ends of the side position adjustment shaft 112 can just rotate in the space formed by the second lower connecting groove 101a-4 and the second upper connecting groove 101b-6, and a second side sliding groove is formed between the upper sliding opening 101b-7 and the lower sliding opening 101a-2, and the plug-in board can just pass through the second side sliding groove and be inserted into the side connecting groove 102a and fit into the outer periphery of the side connecting shaft 102. The plug-in board is slidably connected to the side fixing seat 101 through the second side sliding groove, and the side fixing base 101a is provided with a first lower mounting opening 101a-5 on the upper end relative to the middle fixing seat 203, and the side fixing top A first upper mounting opening 101b-3 is provided at the upward end of the seat 101b relative to the middle fixed seat 203, and the first lower mounting opening 101a-5 and the first upper mounting opening 101b-3 form a side mounting groove. The upward end of the side fixed base 101a and the downward end of the side fixed top seat 101b are respectively provided with a first lower connecting groove 101a-3 and a first upper connecting groove 101b-5 for installing the side worm 113, and the downward end of the side fixed top seat 101b is provided with a third side connecting groove for accommodating the side worm gear 114. The bottom of the side worm gear 114 is attached to the upper side of the side fixed top seat 101b, and the axial movement of the side worm gear 114 is limited by the third side connecting groove.

[0072] Specifically, the structure of the intermediate fixing seat 203 is similar to that of the side fixing seat 101. The intermediate fixing seat 203 includes an intermediate fixing base 203a and an intermediate fixing top seat 203b connected to the upper side of the intermediate fixing base 203a. The upper end of the intermediate fixing base 203a is provided with two first lower intermediate connecting grooves 203a-1, and the lower end of the intermediate fixing top seat 203b is provided with two first upper intermediate connecting grooves 203b-5 corresponding to the first lower intermediate connecting grooves 203a-1. The corresponding intermediate positioning shaft 209 is installed between the first lower intermediate connecting groove 203a-1 and the first upper connecting groove 101b-5. The inner end of the intermediate positioning shaft 209 can be connected to the lower intermediate connecting groove 201b-1. The intermediate fixing top seat 203b is provided with a first intermediate sliding groove 203b-1; the intermediate fixing base 203a is provided with an intermediate center hole, and the outer edges of the first intermediate connecting shaft 211 and the second intermediate shaft can just slide or rotate along the intermediate center hole. The intermediate center hole is far away from the first lower intermediate connecting groove 203a-1. The intermediate fixing base 203a is provided with a lower intermediate sliding opening 203a-2 at one end of the intermediate fixing base 203a, and the lower intermediate sliding opening 203a-2 is far away from the middle center hole. The intermediate fixing base 203a is provided with a second lower intermediate connecting groove 203a-4 at one end of the intermediate fixing base 203a. -2 corresponding to the upper middle sliding port 203b-4 and the second upper middle connecting groove 203b-7 corresponding to the second lower middle connecting groove 203a-4, the left and right ends of the middle position adjustment shaft 214 can just rotate in the space formed by the second lower middle connecting groove 203a-4 and the second upper middle connecting groove 203b-7, a second middle sliding groove is formed between the upper middle sliding port 203b-4 and the lower middle sliding port 203a-2, the plug-in board can just pass through the second middle sliding groove and be inserted into the middle connecting groove and fit into the outer periphery of the middle connecting shaft, the plug-in board is slidably connected to the middle fixed seat 203 through the second middle sliding groove, and the left and right ends of the middle fixed base 203a facing upward are both provided with a second lower mounting The upper ends of the left and right sides of the intermediate fixed top seat 203b are each provided with a second upper mounting port 203b-6, the second lower mounting port and the second upper mounting port 203b-6 form an intermediate mounting groove, the upper end of the intermediate fixed base 203a and the lower end of the intermediate fixed top seat 203b are respectively provided with a second lower connecting groove 203a-3 and a second upper connecting groove 203b-3 for installing the intermediate worm 212, and the lower end of the intermediate fixed top seat 203b is provided with a third intermediate connecting groove 203b-2 for accommodating the intermediate worm gear 216, the bottom of the intermediate worm gear 216 is attached to the upper side of the intermediate fixed top seat 203b, and the axial movement of the intermediate worm gear 216 is limited by the third intermediate connecting groove 203b-2.

[0073] The arrangement of the intermediate fixing seat 203 and the side fixing seat 101 facilitates the installation of various components.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rice seedling shaft connection device, characterized in that: include, Two sets of side connection assemblies, each of which includes a side fixing seat, and a side connection shaft is movably connected to the side fixing seat; A plurality of intermediate connecting assemblies are provided between the two sets of side connecting assemblies, wherein the intermediate connecting assemblies include an intermediate fixing seat, and a first intermediate connecting shaft and a second intermediate connecting shaft are movably connected to the intermediate fixing seat so as to move relative to or away from each other in the axial direction; The side connecting assembly and the intermediate connecting assembly arranged close to the side connecting assembly, as well as the two adjacent groups of intermediate connecting assemblies, are respectively detachably connected to the rice-releasing shaft, and both ends of the rice-releasing shaft in the axial direction are provided with non-circular connecting countersunk holes, and the side connecting shaft can be just inserted into the corresponding connecting countersunk holes, and the first intermediate connecting shaft and the second intermediate connecting shaft can be just inserted into the connecting countersunk holes of the two adjacent rice-releasing shafts, and the side connecting assembly also includes a side fixing plate fixedly connected to the front side of the side fixing seat, and the side fixing plate and the side fixing seat are rotatably connected to the side positioning shaft, and the side positioning shaft in the side fixing seat is threadedly connected to a side sliding seat slidably connected to the side fixing seat. The side sliding block includes a side threaded connection sleeve, and a side sliding part that can slide along the first side sliding groove is fixed on the side threaded connection sleeve, and the side positioning block is fixedly connected to one end of the side sliding part extending out of the side fixed seat.

2. The connecting device for the rice seedling shaft according to claim 1, characterized in that: The side connection assembly also includes a side position adjustment shaft rotatably connected to the side fixing seat, the axis of the side position adjustment shaft is parallel to the axis of the rice seedling releasing shaft, the side position adjustment shaft is threadedly connected to a side position adjustment block slidably connected to the side fixing seat, an annular side connection groove is opened on the side connection shaft, and the side position adjustment block is connected to a side plug-in plate plugged into the outer periphery of the side connection shaft through the side connection groove, and the side connection shaft can rotate along the side plug-in plate.

3. The connecting device for the rice seedling shaft according to claim 2, characterized in that: A side transmission shaft is rotatably connected to the side fixed seat, one end of the side transmission shaft is above the side fixed seat, and the other end of the side transmission shaft is rotatably connected to the side fixed seat. A side worm gear is fixedly connected to the side transmission shaft in the side fixed seat, and a side worm gear that cooperates with the side worm gear is rotatably connected to the side fixed seat, and the side worm gear is transmission-connected to the side position adjustment shaft.

4. The connecting device for the rice seedling shaft according to claim 3, characterized in that: The side limit plate is fixed with two side rotation support parts corresponding to the side rotation counterbores on the side opposite to the side worm gear, and the side rotation support parts are just inserted into the corresponding side rotation counterbores.

5. The connecting device for the rice seedling shaft according to claim 4, characterized in that: The front part of the intermediate fixing seat is rotatably connected to two intermediate positioning shafts spaced apart in the axial direction, and the intermediate positioning shaft is threadedly connected to an intermediate sliding block, and the ends of the two intermediate sliding blocks away from each other extend out of the left and right ends of the intermediate fixing seat respectively, and the ends of the intermediate sliding blocks extending out of the intermediate fixing seat are fixedly connected to the intermediate positioning blocks, and the intermediate positioning blocks can be just inserted into the corresponding positioning grooves.

6. The connecting device for the rice seedling shaft according to claim 5, characterized in that: The first intermediate connecting shaft and the second intermediate connecting shaft can rotate in the intermediate fixed seat and can also move in the intermediate fixed seat. The first intermediate connecting shaft and the second intermediate connecting shaft are respectively provided with an annular first intermediate connecting groove and a second intermediate connecting groove. The intermediate fixed seat is also rotatably connected with an intermediate position adjustment shaft. The intermediate position adjustment shaft is threadedly connected with a first intermediate position adjustment block and a second intermediate position adjustment block that are slidably connected in the intermediate fixed seat and can move toward or away from each other. A first intermediate plug-in plate is fixed on the first intermediate position adjustment block, and a second intermediate plug-in plate is fixed on the second intermediate position adjustment block. The first intermediate plug-in plate is plugged into the outer periphery of the first intermediate connecting shaft through the first intermediate connecting groove, and the second intermediate plug-in plate is plugged into the outer periphery of the second intermediate connecting shaft through the second intermediate connecting groove.

7. The connecting device for the rice seedling shaft according to claim 6, characterized in that: The transmission gear of said sliding panel also is provided with an interlocking groove and a notch, and the interlocking groove is provided with a toothed connecting strip which is cooperatively connected with the toothed connecting gear of said intermediate gear.

8. A method for connecting a rice-setting shaft using the rice-setting shaft connecting device according to claim 7, characterized in that: The following steps are included: Before preparing to transplant rice seedlings, install each rice seedling shaft on the rice seedling platform, insert the two rice seedling shafts into the side connecting components and the corresponding middle components and the two sets of middle connecting components close to the corresponding side connecting components respectively, and insert the two positioning plates at both ends of the rice seedling shaft into the corresponding side positioning blocks or middle positioning blocks respectively through the positioning grooves to realize the preliminary positioning of the rice seedling shaft; The side transmission shaft is rotated, and the side transmission shaft drives the side driving wheel to rotate via the side worm gear, and the side driving wheel drives the side transmission wheel to rotate via the side transmission belt, and the side transmission wheel drives the side position adjustment block to move via the side position adjustment shaft, and the side position adjustment block drives the side connecting shaft to move, and the rotation direction of the side transmission shaft is adjusted so that the side connecting shaft moves toward the direction of the positioning plate, and the side connecting shaft is inserted into the connecting countersunk hole so that it contacts the rice seedling placing shaft; The intermediate transmission shaft close to the side connecting assembly is rotated, and the intermediate transmission shaft drives the intermediate driving wheel to rotate via the intermediate worm gear, and the intermediate driving wheel drives the intermediate transmission wheel to rotate via the intermediate transmission belt, and the intermediate transmission wheel drives the first intermediate position adjusting block and the second intermediate position adjusting block to move via the intermediate position adjusting shaft, and the rotation direction of the intermediate transmission shaft is adjusted so that the first intermediate position adjusting block and the second intermediate position adjusting block move opposite to each other, and the first intermediate position adjusting block and the second intermediate position adjusting block respectively drive the first intermediate connecting shaft and the second intermediate connecting shaft to move in the direction of the corresponding positioning plate, so that the first intermediate connecting shaft and the second intermediate connecting shaft are respectively inserted into the connecting countersunk holes at one end of the adjacent two rice-releasing shafts opposite to each other, thereby realizing the installation of the first rice-releasing shaft between the side connecting assembly and the corresponding intermediate connecting assembly; Then insert the third rice-laying shaft between the other two sets of intermediate connecting assemblies, insert the positioning plate into the corresponding two intermediate positioning blocks, rotate the intermediate transmission shaft on the second set of intermediate connecting assemblies, so that the first intermediate connecting shaft and the second intermediate connecting shaft in the set of intermediate connecting assemblies are respectively moved toward the direction where the corresponding rice-laying shaft is located until they come into contact with the corresponding rice-laying shaft, stop rotating the intermediate transmission shaft, and the installation of the second rice-laying shaft is completed; Repeat the above steps to install the third, fourth, and nth seedling-releasing shafts, and rotate each positioning shaft to move the positioning block away from the positioning plate to a suitable position, and prepare for transplanting. The second and third intermediate connecting shafts are respectively connected to the second intermediate connecting shaft and the third intermediate connecting shaft, and the new intermediate connecting shaft with the seedlings is installed. The position of the intermediate connecting shaft is adjusted so that the positioning groove is aligned with the corresponding positioning block, and the intermediate positioning shafts in the second and third intermediate connecting shafts are rotated so that the intermediate positioning blocks are inserted into the corresponding intermediate positioning grooves. The intermediate transmission shafts in the second and third intermediate connecting shafts are rotated so that the corresponding first and second intermediate connecting shafts move toward each other, and the first and second intermediate connecting shafts leave the intermediate connecting shaft and retract into the corresponding intermediate fixed seats. The third intermediate connecting shaft is removed, and the new intermediate connecting shaft with the seedlings is inserted into the intermediate positioning blocks between the second and third intermediate components. The two intermediate transmission shafts are rotated so that the corresponding first and second intermediate connecting shafts move away from each other, and the first and second intermediate connecting shafts are inserted into the corresponding intermediate connecting shafts again to achieve seedling replacement.

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