A soilless cultivation device and a method for adjusting the spacing between planting grooves

Abstract

The present invention relates to the field of agricultural equipment, and provides a soilless cultivation device and a method for adjusting the spacing between planting troughs, wherein the soilless cultivation device comprises: a bracket; at least two first rails arranged at intervals and two second rails corresponding to the first rails, the first rails and the second rails are placed on the bracket, first pushing pieces are arranged at equal intervals on the first rail, second pushing pieces are arranged at equal intervals on the second rail, and the distance between two adjacent first pushing pieces is greater than the distance between two adjacent second pushing pieces; a telescopic piece connects the first rail and the second rail; a driving device is installed on the bracket and connected to the first rail; the planting troughs are placed on the bracket and are located above the second pushing pieces on the second rails, so as to adjust the spacing between the planting troughs, and the spacing sizes are different.

Description

Technical Field

[0001] The invention relates to the technical field of soilless cultivation, in particular to a soilless cultivation device and a method for adjusting the spacing between planting troughs. Background Art

[0002] Soilless cultivation is a production technology widely used in modern agricultural production. The application of advanced cultivation equipment, cultivation media and supporting cultivation techniques has completely gotten rid of the limitation of crop production relying on soil, solved many problems such as soil continuous cropping obstacles and serious soil-borne diseases, greatly expanded the space for agricultural production, promoted the improvement of crop production yield and quality, and has very broad development prospects.

[0003] my country's facility agriculture is developing rapidly, with more and more large glass greenhouses, multi-span film greenhouses and plant factories appearing. Soilless cultivation has become an effective means to maximize the production benefits of greenhouses. However, the existing soilless cultivation devices still show a low level of automation and mechanization, and most production links still need to be completed manually, which is labor-intensive and inefficient, restricting the production benefits of greenhouses. In addition, my country's current agricultural production labor force is in short supply and aging, and it is urgent to improve the mechanization level of facility cultivation, realize labor-saving production, maximize production potential in limited greenhouse space, and improve the efficiency of greenhouse production. Summary of the invention

[0004] The present invention provides a soilless cultivation device and a method for adjusting the spacing between planting grooves, which will solve the technical problem of automatically adjusting the spacing between planting grooves so that the spacing between planting grooves can adapt to the needs of different growth stages.

[0005] The technical solution provided by the present invention is as follows:

[0006] A soilless cultivation device, comprising:

[0007] Bracket;

[0008] At least comprising two first rails arranged at intervals and two second rails corresponding to the first rails, the first rails and the second rails are placed on the bracket, first pushers are arranged at equal intervals on the first rails, second pushers are arranged at equal intervals on the second rails, and the distance between two adjacent first pushers is greater than the distance between two adjacent second pushers;

[0009] A telescopic member connecting the first track and the second track;

[0010] A driving device, mounted on the bracket and connected to the first rail, for driving the two first rails to move;

[0011] The planting trough is placed on the bracket and located above the second push piece on the second track. The width of the planting trough is not greater than the distance between two adjacent second push pieces. The height of the bottom of the planting trough is higher than the height of the track.

[0012] In the present technical solution, two first rails are arranged at intervals on the bracket, and two second rails are arranged at intervals, and the corresponding first rails and second rails are connected by a telescopic member, so that the driving device drives the first rail to move. When the first rail moves to the point where the telescopic member is stretched to the maximum, the first rail drives the second rail to move, and when the second rail moves to the second push member thereon to the bottom of the planting groove, the second rail will push the planting groove to move under the action of the second push member. When the distance moved by the planting groove is equal to the spacing between the two adjacent second push members, the first rail stops, and the driving motor drives the first rail to move in the opposite direction to restore the second rail to its original position. The above operation is repeated. At this time, the spacing of the movement of the planting groove is the distance between the two adjacent second push members. When the planting groove moves to the second push member close to the first rail, after the first rail is restored to its original position, the first push member close to the second rail on the first rail is against the planting groove. When the first rail is moved again, the distance moved by the planting groove on the first rail is the distance between the two adjacent first push members, so as to adjust different spacings and thus change the spacing between the planting grooves.

[0013] Preferably, the telescopic member comprises:

[0014] A first connecting block and a second connecting block, wherein the first connecting block and the second connecting block are connected to the first rail and the second rail respectively;

[0015] A telescopic rod, two ends of which are respectively connected to the first connecting block and the second connecting block.

[0016] In the technical solution, a first connecting block and a second connecting block are provided, and the first connecting block and the second connecting block are in a U-shaped structure, and a telescopic rod connects the first connecting block and the second connecting block to achieve stretching.

[0017] Preferably, the driving device comprises:

[0018] A driving motor is fixed on the bracket;

[0019] A rotating shaft connected to the driving motor to transmit power of the driving motor;

[0020] A gear set connected to the rotating shaft to transmit power;

[0021] The movable rack is meshed with the gear set, and both ends of the movable rack are fixed on the first track.

[0022] In this technical solution, the driving motor is connected to the rotating shaft, and the rotating shaft is connected to the gear set, so that the power of the driving motor can be transmitted to the gear set through the rotating shaft, the gear set drives the rack to move, and the two ends of the rack are connected to the first track, thereby making the first track move on the bracket.

[0023] Preferably, the support comprises a support body and a cross bar, wherein the cross bar is fixed to the support body, the cross bar is used to carry the planting trough, and the height of the cross bar is higher than the height of the first rail and the second rail.

[0024] In the present technical solution, a cross bar is arranged on the bracket body, and the height of the cross bar is higher than the height of the track, so that when the cross bar carries the planting trough, the bottom of the planting trough maintains a certain distance from the first track or the second track, so that when the first track moves, the first push piece or the second push piece can drive the planting trough to move, and when moving in the opposite direction, the planting trough remains stationary.

[0025] Preferably, the driving device further comprises a travel limiter, and the travel limiter is fixed on the bracket.

[0026] In the present technical solution, a travel limiter is provided so that the distance of one movement of the first track is constant, so that the planting trough can move a constant distance in one movement.

[0027] Preferably, the soilless cultivation device further comprises:

[0028] baffles, arranged on both sides of the bracket;

[0029] The water return grooves are arranged on both sides of the bracket, and the two water return grooves are arranged respectively close to the sides where the two baffles are close to each other.

[0030] In the present technical solution, baffles and return water grooves are provided so that when the planting grooves are moved, the baffles can play a limiting role, preventing the planting grooves from shifting when moved, and the return water grooves are used to irrigate the planting grooves.

[0031] Preferably, the first track and the second track are in a "U"-shaped structure;

[0032] A plurality of groups of first fixing holes are provided on both sides of the U-shaped opening of the first track, and the same first fixing pin is inserted into each group of the first fixing holes, and the first pushing member is rotatably connected to the first fixing pin. When the first track moves, one end of the first pushing member abuts against the planting groove, and the other end of the first pushing member abuts against the U-shaped bottom of the first track. When the first track moves in the reverse direction, the first pushing member rotates along the first fixing pin to make the end of the first pushing member close to the U-shaped bottom of the first track away from the U-shaped bottom.

[0033] A plurality of groups of second fixing holes are provided on both sides of the U-shaped opening of the second track, and the same second fixing pin is inserted in each group of the second fixing holes, and the second pushing member is rotatably connected to the second fixing pin. When the second track moves, one end of the second pushing member abuts against the planting groove, and the other end of the second pushing member abuts against the U-shaped bottom of the second track. When the second track moves in the reverse direction, the second pushing member rotates along the fixing pin so that the end of the second pushing member close to the U-shaped bottom of the second track is away from the U-shaped bottom.

[0034] In the present technical solution, the first push piece is fixed by a first fixing hole opened on the first track, and the second push piece is fixed by a second fixing hole opened on the second track, so that when the first push piece and the second push piece move on the first track, the first push piece or the second push piece can be against the bottom of the planting groove, and when the first track is reset, the first push piece rotates around the first fixing pin so that the corresponding planting groove crosses the corresponding push piece.

[0035] Preferably, the driving device drives the first track to move a distance Y at a time, the stretching spacing of the telescopic parts is M, the distance between the first and second pushing parts and the corresponding planting trough bottom support plates is W, the number of telescopic parts is L, and the installation spacing on the first track or the second track is H. Y, M, L, W, and H satisfy the following relationship: Y=M*L+W+Hn, where L=n-1, where n=1, 2, …, n, representing the first track, the second track, … the nth track, respectively, and the spacing of the pushing parts on the nth track is the smallest.

[0036] Preferably, when the telescopic member is static, the distance between the first push member and the second push member adjacent to each other on the first track and the second track is equal to the distance between two adjacent second push members;

[0037] When the telescopic member is stretched to the maximum, the distance between the adjacent first pushing members and the second pushing members on the first track and the second track is equal to the spacing between two adjacent first pushing members.

[0038] A method for adjusting the spacing between planting grooves comprises the following steps:

[0039] S10, placing the planting trough above the second pushing member on the second track;

[0040] S20, the driving device drives the first track to move until the telescopic member is stretched to the maximum, the first track drives the second track to move, when the second pushing member moves to abut against the bottom of the planting groove, the second track drives the planting groove to move, and when the planting groove moves the spacing of the second pushing member on the second track, the first track stops moving;

[0041] S30, the driving device drives the first track in step S20 to move in reverse direction and return to its original position;

[0042] S40, repeating steps S20 and S30 according to the spacing required for plant growth.

[0043] Preferably, the step S30 and the step S40 further include the following steps:

[0044] S31, repeating steps S20-S30, when the planting groove on the second track moves to the second pushing piece close to the first track, performing steps S20 and S30 again, the planting groove close to the first track moves to the first track.

[0045] Preferably, the step S31 and the step S40 further include the following steps:

[0046] S32, repeating steps S20-S30, so that the distance between the planting grooves on the first track moves is the distance between two adjacent first pushing members.

[0047] Compared with the prior art, the soilless cultivation device and planting trough spacing adjustment method provided by the present invention have the following beneficial effects:

[0048] 1. The soilless cultivation device of the present invention can automatically adjust the spacing between plants during the vegetable production process to meet the space requirements of plants in different growth periods. The device has a high level of automation and mechanization, which greatly improves the operation efficiency and reduces labor costs. The movable planting trough can realize the simultaneous seedling and growth stages of vegetables, shorten the cultivation cycle of vegetables, put them on the market earlier, and improve the production efficiency of greenhouse vegetables. Producers can change the equipment parameters such as the size of the planting trough and the moving spacing of the planting trough according to actual production needs, and customize an automated soilless cultivation device suitable for plant growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The following will explain the preferred implementation mode in a clear and easy-to-understand manner in combination with the accompanying drawings, and further explain the above-mentioned characteristics, technical features, advantages and implementation methods of a soilless cultivation device and a planting trough spacing adjustment method.

[0050] Figure 1 It is a schematic diagram of the structure of the present invention;

[0051] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of some areas;

[0052] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of some areas;

[0053] Figure 4 It is a schematic diagram of the structure of a partial area magnified from another viewing angle;

[0054] Figure 5 It is a schematic diagram of the structure in which the planting trough is placed on the first track or the second track;

[0055] Figure 6 is a schematic diagram of a track connection structure in which a track is connected to a first track and connected to a second track;

[0056] Figure 7 is a schematic diagram of the structure of the connection between the first track and the second track;

[0057] Figure 8 It is a schematic diagram of the structure of the push piece.

[0058] Description of the accompanying figures: 1. Bracket; 2. Planting trough; 3. Track; 4. Driving device; 5. Baffle; 6. Return water trough; 7. Crossbar; 8. Telescopic part; 9. U-shaped groove; 10. Travel limiter;

[0059] 21. Planting hole; 22. Support plate; 31. Round hole; 32. Push piece; 41. Driving motor; 42. Gear set; 43. Moving rack; 44. Rotating shaft; 45. Fixing piece; 46. Fixing bracket. DETAILED DESCRIPTION

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0061] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0062] According to an embodiment provided by the present invention, Figure 1 As shown, a soilless cultivation device includes: a bracket 1, a first track, a second track, a telescopic member 8, a driving device 4 and a planting trough 2.

[0063] At least two first tracks arranged at intervals and two second tracks corresponding to the first tracks are included, the first track and the second track are placed on the bracket 1, the first track and the second track are connected by a telescopic member 8, first push members are arranged at equal intervals on the first track, second push members are arranged at equal intervals on the second track, and the distance between two adjacent first push members is greater than the distance between two adjacent second push members. In this embodiment, a third track, a fourth track or more can also be added, and they all correspond to the first track and are connected in turn by the telescopic member 8, and the interval between the first push members on the first track is the largest, then the second push members on the second track, the third push members on the third track... The spacing between the nth push members on the nth track decreases in turn, and the spacing between the push members on the track farthest from the first track is the smallest. The track is used to place the planting trough 2, and the specific number and the spacing change design of the push members on the track can be designed according to the length of the bracket 1 and the actual planting needs, and there are no excessive restrictions in this embodiment;

[0064] The driving device 4 is installed on the bracket 1 and connected to the two first tracks to drive the two first tracks to move; it should be noted that the first tracks can be increased to a plurality of tracks according to needs, and the plurality of first tracks are arranged at equal intervals, and the plurality of first tracks are all connected to the driving device 4, and at the same time, a plurality of second tracks corresponding to the first tracks are arranged on the bracket 1, and the planting trough 2 is placed on the bracket 1 and is located above the second push piece on the second track, the width of the planting trough 2 is not greater than the spacing between two adjacent second push pieces, and the height of the bottom of the planting trough 2 is higher than the height of the track;

[0065] In a specific implementation, the driving device 4 is used to drive the first track to move, and the stroke of the driving device 4 driving the first track to move once is fixed. For example, the distance that the driving device 4 drives the first track to move once is Y, the stretching spacing of the telescopic member 8 is M, the distance between the first and second push members and the corresponding bottom support plate 22 of the planting trough 2 is W, the number of telescopic members 8 is L, and the installation spacing on the first track or the second track is H. Y, M, L, W, and H satisfy the following relationship: Y=M*L+W+Hn, wherein L=n-1, wherein n=1, 2, ..., n, representing the first track, the second track, ..., the nth track, respectively, wherein the spacing between the push members on the nth track is the smallest. In this embodiment, the device can be designed according to the above relationship. When the planting trough moves on each track, the distance between the bottom support plate 22 of the planting trough and the push member on the corresponding track is W.

[0066] In another embodiment of the present invention, the bracket 1 includes a bracket 1 body and a cross bar 7, the cross bar 7 is fixed on the bracket 1 body, the cross bar 7 is used to carry the planting trough 2, and the height of the cross bar 7 is higher than the height of the first track and the second track. When in use, when the first track or the second track drives the planting trough 2 to move, the planting trough 2 will slide on the cross bar 7. When the first track returns to its original position, the planting trough 2 does not move on the cross bar 7, and only the first track drives the second track to slowly reset. A planting hole 21 is provided on the side of the planting trough 2 away from the bracket, and two support plates 22 are provided on the side close to the bracket 2 to form a spacing between the two support plates 22. When moving, the first push member or the second push member is located between the two support plates 22 and abuts against one of the support plates 22 to drive the planting trough 22 to move.

[0067] The soilless cultivation device further includes: a baffle 5 and a return water trough 6. The baffle 5 is arranged on both sides of the bracket 1, and the return water trough 6 is also arranged on both sides of the bracket 1. The two return water troughs 6 are respectively arranged close to the side where the two baffles 5 are close to each other, that is, the return water trough 6 is arranged close to the baffle 5.

[0068] like Figure 5 As shown, the first rail and the second rail are both in a "U"-shaped structure, and the bracket 1 is provided with a U-shaped groove 9 for moving the first rail and the second rail, so that the first rail or the second rail can move along the U-shaped groove 9; a plurality of groups of first fixing holes are opened on both sides of the U-shaped opening of the first rail, and the same first fixing pin is inserted in each group of first fixing holes, and the first push piece is rotatably connected to the first fixing pin. When the first rail moves, one end of the first push piece abuts against the planting groove 2, and the other end of the first push piece abuts against the U-shaped bottom of the first rail. When the first rail moves in the reverse direction, the first push piece rotates along the first fixing pin, so that the end of the first push piece close to the U-shaped bottom of the first rail is away from the U-shaped bottom;

[0069] A plurality of groups of second fixing holes are provided on both sides of the U-shaped opening on the second track, and the same second fixing pin is inserted in each group of second fixing holes, and the second pushing member is rotatably connected to the second fixing pin. When the second track moves, one end of the second pushing member abuts against the planting groove 2, and the other end of the second pushing member abuts against the U-shaped bottom of the second track. When the second track moves in the reverse direction, the second pushing member rotates along the fixing pin so that the end of the second pushing member close to the U-shaped bottom of the second track is away from the U-shaped bottom.

[0070] like Figure 8As shown, the specific designs of the first push member and the second push member are that the end close to the planting groove 2 is lighter, and the end of the first push member close to the first track and the end of the second push member close to the second track are heavier, so that the first push member and the second push member can rotate when the first track and the second track are reset, so that the planting groove 2 crosses the first push member or the second push member, and after the planting groove 2 passes the first push member or the second push member, the heavier end of the first push member and the second push member will return to the original position under the action of gravity. In this embodiment, it is not limited to the specific form of the first push member and the second push member, as long as the design of the push member can limit the planting groove 2 when the first track moves, and the first push member or the second push member will not drive the planting groove 2 to move back when the first track drives the second track to reset.

[0071] It should be noted that, for the sake of convenience of description, the above-mentioned embodiment uses the first track and the second track for description, which does not represent the number of tracks in actual implementation. The first track and the second track mentioned above are collectively referred to as track 3, and the first push member and the second push member are also collectively referred to as push members 32, and the first push member and the second push member are of the same size and the same installation method, the first fixing hole and the second fixing hole are collectively referred to as round holes 31, and the first fixing hole and the second fixing hole are of the same size, the spacing between the push members 32 on two adjacent tracks 3 is different, and the spacing between the push members 32 on the track 3 away from the driving device 4 is the smallest, and the spacing between the push members 32 increases successively from the track 3 away from the driving device 4 to the track 3 close to the driving device 4, and the spacing between the push members 32 on the track 3 close to the driving device 4 is the largest.

[0072] The telescopic member 8 includes a first connecting block, a second connecting block and a telescopic rod, the first connecting block and the second connecting block are respectively connected to the first rail and the second rail; both ends of the telescopic rod are respectively connected to the first connecting block and the second connecting block. In this embodiment, the first connecting block and the second connecting block are U-shaped structures that match the first rail and the second rail, respectively covering the outer side of one end close to the first rail and the second rail, and are respectively fixed to the first rail and the second rail. In this embodiment, the specific form of the telescopic rod is not limited, as long as it can play a telescopic role.

[0073] like Figure 7 As shown, when the telescopic member 8 is static, the distance between the first push member and the second push member close to each other on the first track and the second track is equal to the spacing between two adjacent second push members; when the telescopic member 8 is stretched to the maximum, the distance between the first push member and the second push member close to each other on the first track and the second track is equal to the spacing between two adjacent first push members.

[0074] like Figure 1-3 ,as well as Figure 6As shown, the driving device 4 includes: a driving motor 41, a rotating shaft 44, a gear set 42, a moving rack 43 and a travel limiter 10. The driving motor 41 and the gear set are fixed on a fixed bracket 46, and the fixed bracket 46 is fixed on the bracket 1; the rotating shaft 44 is connected to the driving motor 41 to transmit the power of the driving motor 41; the gear set 42 is connected to the rotating shaft 44 to transmit power; the moving rack 43 is meshed with the gear set 42, and the two ends of the moving rack 43 are fixed to the first track by fixing members 45, and the travel limiter 10 is fixed on the bracket 1. In this embodiment, the travel limiter 10 cooperates with the driving motor 41 to achieve a constant distance for driving the first track to move once.

[0075] Specifically, the present invention provides a soilless cultivation device designed as follows:

[0076] (1) The automated soilless cultivation device mainly includes the following parameters: the distance (Y) of the track 3 near the driving device 4 controlled by the travel limiter 10, the stretching spacing (M) of the telescopic member 8, the distance (W) between the starting position of the push member 32 and the bottom support plate 22 of the corresponding upper planting trough 2, the number of telescopic members 8 (L), the installation spacing (H) of the push members 32 on the track 3, and Y, M, L, W, and H satisfy the following relationship:

[0077] Y=M*L+W+Hn, wherein L=n-1, n=1, 2, 3...n, representing the 1st track, the 2nd track, the 3rd track...the nth track respectively, wherein the distance between the pushers 32 on the nth track is the smallest.

[0078] By applying the above parameter relationship expressions, the parameters of the relevant accessories of the soilless cultivation device are determined according to actual production needs, and the automated soilless cultivation device required for production is customized.

[0079] In a specific embodiment, the automated soilless cultivation device includes 6 tracks, and the installation spacing (H) of the corresponding pushers 32 on the tracks are respectively 75, 105, 135, 165, 195, and 225 mm; 6 tracks 3 of different specifications are connected in sequence through 5 telescopic parts 8, and the stretchable spacing (M) of each telescopic part 8 is 30 mm; if the travel limiter 10 controls the track 3 close to the driving device 4 to move 275 mm at a time, the width of the planting trough 2 is 75 mm, and the distance (W) between the starting position of the pusher 32 and the corresponding bottom support plate 22 of the upper planting trough 2 is 50 mm. As the individual plants continue to grow and increase, the planting trough 2 gradually moves forward, and the planting trough 2 is moved one by one from the track 3 with pushers 32 of 75mm spacing to different types of tracks 3 such as 105, 135, 165, 195, and 225mm. The spacing between plants on adjacent tracks 3 gradually increases by 30mm, and the maximum plant spacing is 225mm. The spacing between pushers 32 on the first track is 225mm, the spacing between pushers 32 on the second track is 195mm, the spacing between pushers 32 on the third track is 165mm, the spacing between pushers 32 on the fourth track is 135mm, and the spacing between pushers 32 on the fifth track is 225mm. The spacing between the pushers 32 on the sixth track is 105mm, the spacing between the pushers 32 on the sixth track is 75mm, the spacing between the two adjacent tracks differs by 30mm, and the distance that the planting trough on each track 3 moves once is the distance between the two adjacent pushers 32 on the track 3. In this embodiment, the distance between the two adjacent pushers 32 on the sixth track and the fifth track is equal to the distance between the two adjacent pushers 32 on the sixth track when the telescopic member 8 is not stretched; when the telescopic member 8 is stretched, the distance between the two adjacent pushers 32 on the sixth track and the fifth track is equal to the distance between the two adjacent pushers on the fifth track, and so on.

[0080] Further, based on the above embodiment, the stretchable spacing (M) of the telescopic member 8 is increased to 40 mm, according to the relationship: Y = M*L + W + Hn, where L = n-1, (n = 1, 2, 3...6, representing the first track, the second track, the third track...6, respectively, the spacing of the pusher 32 on the sixth track is the smallest),

[0081] The moving distance of the first track: 275 = 40 * 0 + W + H1, the moving distance of the second track: 275 = 40 * 1 + W + H2, ..., 275 = 40 * 5 + W + H6,

[0082] Then W+H1=275,W+H2=235……,W+H6=75,and W <H6(1),

[0083] In another specific embodiment, the minimum installation spacing (H6) of the pusher 32 is set to 50mm, then the distance (W) between the starting position of the pusher 32 and the corresponding upper planting groove 2 support plate 22 is 25mm, that is, the planting groove 2 width is greater than 25mm, but not greater than 50mm. According to the relationship (1), the installation spacing (H) of the pushers 32 on the six types of tracks 3 are: 50, 90, 130, 170, 210, 250mm; the planting groove 2 gradually moves from the 50mm track 3 to different types of tracks 3 such as 90, 130, 170, 210, 250mm, etc., and the spacing between plants on adjacent tracks 3 gradually increases by 40mm, and the maximum plant spacing is 250mm.

[0084] Furthermore, based on the above embodiment, the distance (Y) that the travel limiter 10 controls each track 3 to run once is increased to 350 mm. According to the relationship: Y=M*L+W+Hn, where L=n-1, (n=1, 2, 3...6, representing that the spacing between the pushers 32 on the first track, the second track, the third track...the sixth track is the smallest),

[0085] The moving distance of the first track: 350 = 30 * 0 + W + H1, the moving distance of the second track: 350 = 30 * 1 + W + H2, ..., 350 = 30 * 5 + W + H6,

[0086] Then W+H1=350,W+H2=320......W+H6=200,and W <H6(2),

[0087] If the minimum installation spacing (H1) of the pusher 32 is set to 150mm, the distance (W) between the starting position of the pusher 32 and the corresponding upper planting trough 2 support plate 22 is 50mm, that is, the width of the planting trough 2 is greater than 50mm, but not greater than 150mm. According to the relationship (2), the installation spacing (H) of the pushers 32 on the six types of tracks 3 are: 150, 180, 210, 240, 270, 300mm; the planting trough 2 gradually moves from the track 3 of 150mm specification to different types of tracks 3 such as 180, 210, 240, 270, 300mm, so that the spacing between plants gradually increases by 30mm, and the maximum plant spacing is 300mm.

[0088] During specific use, the number of planting troughs 2 used and the number of planting holes on the planting troughs 2 can be designed according to specific planting needs, and the width of the planting troughs 2 is also designed according to actual planting needs. The planting troughs 2 with a width of 150 mm are suitable for vegetable varieties with larger individual plants or for setting multiple planting holes on the planting troughs 2 for cultivation.

[0089] A method for adjusting the spacing between planting grooves comprises the following steps:

[0090] S10, placing the planting trough 2 between two adjacent second pushing members on the second track.

[0091] S20, the driving device 4 drives the first track to move until the telescopic member 8 is stretched to the maximum, the first track drives the second track to move, when the second push member moves to abut against the bottom of the planting trough 2, the second track drives the planting trough 2 to move, and when the planting trough 2 moves the spacing of the first push member on the first track, the first track stops moving;

[0092] S30, the driving device 4 drives the first track in step S20 to move in reverse direction and return to its original position;

[0093] S40, repeating steps S20 and S30 according to the spacing required for plant growth.

[0094] In different growth stages, the steps between step S30 and step S40 include:

[0095] S31, repeating steps S20-S30, when the planting groove 2 on the second track moves to the second pusher close to the first track, performing steps S20 and S30 again, the planting groove 2 close to the first track moves to the first track.

[0096] The steps between step S31 and step S40 also include:

[0097] S32, repeating steps S20-S30, so that the spacing of the moving planting grooves 2 on the first track is the spacing between two adjacent second pushing members.

[0098] During the specific adjustment, steps S20-S30 are repeated to move the plant from the track 3 where the distance between two adjacent pushers 32 is the smallest to the track 3 where the distance between two adjacent pushers 32 is the largest.

[0099] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A soilless cultivation device, characterized in that: include: Bracket; At least comprising two first rails arranged at intervals and two second rails corresponding to the first rails, the first rails and the second rails are placed on the bracket, first pushers are arranged at equal intervals on the first rails, second pushers are arranged at equal intervals on the second rails, and the distance between two adjacent first pushers is greater than the distance between two adjacent second pushers; A telescopic member connecting the first track and the second track; A driving device, mounted on the bracket and connected to the two first rails, for driving the two first rails to move; A planting trough is placed on the bracket and is located above the second pusher on the second track, the width of the planting trough is not greater than the distance between two adjacent second pushers, and the height of the bottom of the planting trough is higher than the height of the track; The driving device comprises: A driving motor is fixed on the bracket; A rotating shaft connected to the driving motor to transmit power of the driving motor; A gear set connected to the rotating shaft to transmit power; A movable rack meshing with the gear set, and both ends of the movable rack are fixed on the first track; The first track and the second track are in a "U"-shaped structure; A plurality of groups of first fixing holes are provided on both sides of the U-shaped opening of the first track, and the same first fixing pin is inserted into each group of the first fixing holes, and the first pushing member is rotatably connected to the first fixing pin. When the first track moves, one end of the first pushing member abuts against the planting groove, and the other end of the first pushing member abuts against the U-shaped bottom of the first track. When the first track moves in the reverse direction, the first pushing member rotates along the first fixing pin to make the end of the first pushing member close to the U-shaped bottom of the first track away from the U-shaped bottom. A plurality of groups of second fixing holes are provided on both sides of the U-shaped opening of the second track, and the same second fixing pin is inserted into each group of the second fixing holes, and the second pushing member is rotatably connected to the second fixing pin. When the second track moves, one end of the second pushing member abuts against the planting groove, and the other end of the second pushing member abuts against the U-shaped bottom of the second track. When the second track moves in the reverse direction, the second pushing member rotates along the fixing pin so that the end of the second pushing member close to the U-shaped bottom of the second track is away from the U-shaped bottom. The driving device drives the first track to move a distance Y, the stretching spacing of the telescopic parts is M, the distance between the first and second pushing parts and the corresponding bottom support plates of the planting trough is W, the number of telescopic parts is L, and the installation spacing on the first track or the second track is H. Y, M, L, W, and H satisfy the following relationship: Y=M*L+W+Hn, where L=n-1, where n=1, 2…n, representing the first track, the second track,…, the nth track, respectively, and the spacing of the pushing parts on the nth track is the smallest.

2. A soilless cultivation device according to claim 1, characterized in that: The telescopic member comprises: A first connecting block and a second connecting block, wherein the first connecting block and the second connecting block are connected to the first rail and the second rail respectively; A telescopic rod, two ends of which are respectively connected to the first connecting block and the second connecting block.

3. A soilless cultivation device according to claim 1, characterized in that: The support comprises a support body and a cross bar, wherein the cross bar is fixed to the support body, the cross bar is used to carry the planting groove, and the height of the cross bar is higher than the height of the first track and the second track.

4. A soilless cultivation device according to claim 1, characterized in that: The driving device further comprises a travel limiter, and the travel limiter is fixed on the bracket.

5. The soilless cultivation device according to claim 1, characterized in that: The soilless cultivation device also includes: Baffles are arranged on both sides of the bracket The water return grooves are arranged on both sides of the bracket, and the two water return grooves are arranged respectively close to the sides where the two baffles are close to each other.

6. A soilless cultivation device according to claim 1, characterized in that: When the telescopic member is static, the distance between the first push members and the second push members that are close to each other on the first track and the second track is equal to the distance between two adjacent second push members; When the telescopic member is stretched to the maximum, the distance between the adjacent first pushing members and the second pushing members on the first track and the second track is equal to the spacing between two adjacent first pushing members.

7. A method for adjusting the spacing between planting grooves, characterized in that: The method is applicable to the soilless cultivation device according to any one of claims 1 to 6, comprising the following steps: S10, placing the planting trough above the second pushing member on the second track; S20, the driving device drives the first track to move until the telescopic member is stretched to the maximum, the first track drives the second track to move, when the second pushing member moves to abut against the bottom of the planting groove, the second track drives the planting groove to move, and when the planting groove moves the spacing of the second pushing member on the second track, the first track stops moving; S30, the driving device drives the first track in step S20 to move in reverse direction and return to its original position; S40, repeating steps S20 and S30 according to the spacing required for plant growth.

8. A method for adjusting the spacing between planting grooves according to claim 7, characterized in that: The steps between step S30 and step S40 also include: S31, repeating steps S20-S30, when the planting groove on the second track moves to the second pushing piece close to the first track, performing steps S20 and S30 again, the planting groove close to the first track moves to the first track.

9. A method for adjusting the spacing between planting grooves according to claim 8, characterized in that: The steps between step S31 and step S40 also include: S32, repeating steps S20-S30, so that the distance between the planting grooves on the first track moves is the distance between two adjacent first pushing members.

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