A variable distance assembly and a plant growing device

Abstract

The utility model discloses a variable distance assembly, include: at least two groups of variable distance support spare, multiple sets of connecting piece, multiple sets of variable distance unit and driving arrangement, each variable distance support spare includes a support groove and the multiple positioning card protruding of hinged on support groove, and the spacing between the positioning card protruding on adjacent support groove is different, each variable distance unit includes the multiple variable distance groove of being perpendicular to the support groove setting, and the variable distance groove is installed on the support groove and is provided with the positioning card groove in the bottom of variable distance groove, and the positioning card protruding can be clamped in the positioning card groove, driving arrangement control support groove reciprocating movement along the horizontal direction. The utility model discloses still a kind of plant planting device, include: the variable distance assembly and truss of above-mentioned, and variable distance assembly is provided with multiple sets and is installed on truss. The utility model satisfies the need of planting space to different growth period of crop through the automatic variable distance of variable distance groove, reduces the waste of planting space.

Description

Technical Field

[0001] This utility model relates to the field of hydroponic leafy vegetable cultivation technology, specifically a variable-pitch component and a plant cultivation device. Background Technology

[0002] Currently, hydroponic leafy vegetable cultivation on the market all uses non-automated hydroponic leafy vegetable cultivation systems (NFT cultivation systems). Existing NFT cultivation systems all use a portal frame (formed by welding or rolling and bending round or square tubes) as the supporting framework for the cultivation trough. This type of portal frame can only be fixed to the floor or concrete block and cannot be moved. The cultivation trough is then placed on the portal frame. In this method, the length of the cultivation trough is typically between 20-30 meters, but the length of a single cultivation trough is generally within 6 meters. Therefore, this method requires a relatively high level of precision in the connection process between the cultivation troughs.

[0003] Meanwhile, existing NFT cultivation systems have fixed, immovable cultivation troughs, and the spacing between the troughs is determined by the crop's maturity stage. This can easily lead to wasted planting space at different growth stages, especially since passageways for growers and equipment need to be left between NFT cultivation systems, further wasting space. Secondly, a relatively dense layout can result in low crop yields. Utility Model Content

[0004] The purpose of this invention is to provide a variable-pitch component and a plant planting device, which automatically adjusts the pitch of the variable-pitch groove to meet the planting space requirements of crops at different growth stages, thereby reducing the waste of planting space. To achieve the above objective, this invention adopts the following technical solution:

[0005] This utility model discloses a pitch-changing assembly, comprising: at least two sets of pitch-changing support members, each set of the pitch-changing support members including a support groove and a plurality of positioning protrusions arranged on the support groove, the positioning protrusions being hinged to the support groove by a hinge shaft, and the end of the positioning protrusion extending out of the support groove, and the positioning protrusions rotating around the hinge shaft so that the positioning protrusions can be accommodated in the support groove; the spacing between the positioning protrusions on adjacent support grooves is different.

[0006] Multiple sets of connectors are provided, each connector having a translational limiting groove. The connector is positioned between two adjacent support grooves, with a connecting shaft fixed to the end of one of the support grooves. The connecting shaft is located within the translational limiting groove, and the other adjacent support groove is fixed to the connector.

[0007] Multiple sets of pitch-changing units, each set of pitch-changing units includes multiple pitch-changing slots that are perpendicular to the support slot. The pitch-changing slots are installed on the support slot and the bottom of the pitch-changing slots is provided with positioning slots. The positioning slots can be locked into the positioning slots.

[0008] A drive device that controls the support groove to reciprocate in the horizontal direction.

[0009] Furthermore, the variable pitch support is provided in N groups, where N≥2, and the connector and drive device are provided in N-1 groups, and the drive device is not provided on the first group of support grooves along the variable pitch direction; the number of variable pitch grooves in each group of variable pitch units corresponds to the number of positioning protrusions in each group of variable pitch support.

[0010] Furthermore, the top of the positioning protrusion is tilted to one side to form a tooth tip, so as to be easily locked in the positioning slot, and a retaining spring is installed at the hinge end of the positioning protrusion and the support slot so that the positioning protrusion can be reset in time.

[0011] This utility model also discloses a plant cultivation device, characterized in that it includes: a pitch-changing component and a truss, wherein multiple pitch-changing components are provided and installed on the truss. The pitch-changing groove in the pitch-changing component is an integrated cultivation groove, and the driving devices in the multiple sets of the pitch-changing components control the support grooves to reciprocate simultaneously, so that the pitch-changing grooves move between different support grooves to complete the pitch change.

[0012] The driving device is configured as a set, and the driving device includes: a first motor and transmission rods mounted on both sides of the first motor, with a plurality of gear boxes mounted on the transmission rods. The number of gear boxes corresponds to the number of pitch-changing components mounted on the truss, and a rack is provided at the bottom of the support groove. The gear box is connected to the rack, and the gears in the gear box rotate under the control of the first motor, thereby driving the support grooves in the multiple sets of pitch-changing components to reciprocate simultaneously in the horizontal direction.

[0013] Furthermore, limit switches are installed at both ends of the truss in the direction of movement of the variable pitch groove. The limit switches are electrically connected to the first motor. When the support groove moves to a preset position, the corresponding limit switch is triggered, thereby controlling the first motor to run in reverse.

[0014] Furthermore, the truss is inclined downwards along the length of the pitch groove, with an inclination angle α ≤ 10°. A return fluid tank is installed on both the head and tail sides of the pitch groove, and a plurality of injection nozzles are also provided in the return fluid tank at the head of the pitch groove. These injection nozzles correspond to the pitch groove and are used to inject nutrient solution into it. The injection nozzles are also connected to the return fluid tank at the tail of the pitch groove for nutrient solution circulation.

[0015] Preferably, a filter is provided in the passage between the injection nozzle and the return tank located at the tail of the variable pitch tank to filter the nutrient solution.

[0016] Furthermore, the truss has several sets of material changing components installed on both ends parallel to the pitch changing assembly. Each material changing component includes a telescopic rod and a second motor. The telescopic rod is arranged parallel to the support groove and located between adjacent support grooves. A limit latch is provided at one end of the telescopic rod, and the other end is connected to the second motor. The telescopic rod moves under the control of the second motor, at which time the limit latch engages with one side of the pitch changing groove, thereby driving the pitch changing groove to move onto or away from the support groove, completing the loading or unloading of the pitch changing groove.

[0017] Furthermore, the plant planting device also includes a loading platform and a unloading platform installed on both sides of the truss. The loading platform is located on the side of the variable pitch groove where the material is loaded, and the unloading platform is located on the side of the variable pitch groove where the material is unloaded. The loading platform and the unloading platform are respectively equipped with a first servo mechanism and a second servo mechanism to control the lifting and lowering of the variable pitch groove. The servo mechanism is a motor or a cylinder.

[0018] After adopting the above technical solution, the present invention has the following effects:

[0019] 1. This utility model solves the problem of immovable cultivation troughs in existing NFT cultivation systems by automatically adjusting the spacing of the cultivation trough. It can also meet the planting space requirements of crops at different growth stages, adapt to the changes in plant stems and leaves during the crop growth cycle, and avoid the situation where the crop is relatively densely packed, thus reducing the yield.

[0020] 2. This utility model uses automatic feeding and unloading of the cultivation trough to utilize the space originally reserved for planting personnel and equipment for planting crops, thereby reducing the waste of planting space and increasing crop yield.

[0021] 3. This utility model adopts an integrated cultivation trough, which avoids water leakage due to substandard docking process between cultivation troughs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the pitch-changing component of this utility model.

[0023] Figure 2a This is a schematic diagram of the pitch-changing process of this utility model. Figure 1 .

[0024] Figure 2b This is a schematic diagram of the pitch-changing process of this utility model.

[0025] Figure 2c This is a schematic diagram of the pitch-changing process of this utility model. Figure 3 .

[0026] Figure 3 This is a three-dimensional structural diagram of a plant planting device according to the present invention.

[0027] Figure 4 for Figure 3 Enlarged view of point A.

[0028] Figure 5 for Figure 3 Enlarged view of point B.

[0029] Figure 6 This is a top view of the plant planting device in this utility model.

[0030] Figure 7 This is an elevation view of the plant planting device in this utility model.

[0031] Figure 8 This is a three-dimensional structural diagram of the variable pitch component in the plant planting device of this utility model.

[0032] Figure 9 for Figure 8 Enlarged view of point C.

[0033] Main component symbols:

[0034] 1: Pitch-changing assembly; 11: Support groove; 12: Positioning card protrusion; 13: Connector; 131: Translation limit groove; 14: Connecting shaft; 15: Pitch-changing groove; 151: Positioning card groove; 16: First motor; 17: Transmission rod; 18: Gear box; 19: Rack; 2: Truss; 21: Return tank; 22: Injection nozzle; 3: Material changing assembly; 31: Telescopic rod; 32: Limiting card protrusion; 4: Loading platform; 5: Unloading platform; 6: First servo mechanism; 7: Second servo mechanism. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1As shown, this utility model discloses a plant planting device, including: at least two sets of variable pitch support members, multiple sets of connecting members, multiple sets of variable pitch units, and a driving device (not shown in the figure).

[0037] Each set of variable pitch support components includes a support groove 11 and multiple positioning protrusions 12 arranged on the support groove 11. The positioning protrusions 12 are hinged to the support groove 11 via a hinge shaft, and the ends of the positioning protrusions 12 extend out of the support groove 11. The positioning protrusions 12 can be rotated around the hinge shaft to be accommodated within the support groove 11. The spacing between the positioning protrusions 12 on adjacent support grooves 11 is different.

[0038] The connector 13 is provided with a translation limiting groove 131. The connector 13 is located between two adjacent support grooves 11. A connecting shaft 14 is fixed to the end of one of the support grooves 11. The connecting shaft 14 is located in the translation limiting groove 131. The other adjacent support groove 11 is fixed to the connector.

[0039] Each pitch unit includes multiple pitch grooves 15 perpendicular to the support groove 11. The pitch grooves 15 are installed on the support groove 11, and the bottom of the pitch grooves 15 is provided with positioning slots 151. The positioning protrusions 12 can be locked into the positioning slots 151.

[0040] The drive unit controls the support groove 11 to reciprocate in the horizontal direction.

[0041] The variable pitch support has N=3 sets, and the connecting parts 13 have N-1=2 sets, respectively located between the first set and the second set of variable pitch support. The drive device also has 2 sets, respectively located at the positions of the second and third sets of variable pitch support. The number of variable pitch slots 15 in each set of variable pitch units corresponds to the number of positioning protrusions 12 in each set of variable pitch support.

[0042] In this embodiment, the top of the positioning protrusion 12 is tilted to one side to form a tooth tip, so as to be easily placed in the positioning slot 151, and a retaining spring (not shown in the figure) is installed at the hinge end of the positioning protrusion 12 and the support slot 11 so that the positioning protrusion 12 can be reset in time.

[0043] Combination Figures 2a-2c As shown, the process of moving the pitch groove 15 from the first set of pitch support members to the second set of pitch support members will be described in detail. The direction of pitch movement along the pitch groove 15 is forward movement, and the opposite direction is backward movement. Only two pitch grooves 15a and 15b are shown in the figure.

[0044] On the first set of pitch support members, the spacing between adjacent pitch grooves 15 is l ( Figure 2a On the second set of variable-pitch supports, the distance between adjacent cultivation troughs 15 is L ( Figure 2aOn the third set of variable-pitch supports, the distance between adjacent cultivation troughs 125 is L' (not shown in the figure), and L'>L>l is set. By setting three sets of variable-pitch supports, the distance between the variable-pitch grooves 15 on the three sets of variable-pitch supports becomes larger.

[0045] S1. As Figure 2a As shown, the drive device controls the second set of support grooves 11b to move forward in the horizontal direction until the rear end of the translation limit groove 131 on the connector 13 is engaged with the connecting shaft 14 of the first set of support grooves 11a (as shown in the third figure of 2a).

[0046] like Figure 2b As shown in the first figure, the drive device controls the second set of support grooves 11b to continue moving forward in the horizontal direction, driving the first set of variable pitch support components to move forward a certain distance as a whole.

[0047] S2. For example Figure 2b As shown in the second figure, the drive device controls the second set of support grooves 11b to move backward in the horizontal direction until the front end of the translation limit groove 131 on the connector 13 is engaged with the connecting shaft 14 of the first set of support grooves 11a (as shown in the third figure of 2b).

[0048] like Figure 2b The fourth picture and Figure 2c As shown in the first and second figures, the drive device controls the second set of support grooves 11b to continue moving backward in the horizontal direction. The second set of support grooves 11b pushes the first set of support grooves 11a backward a certain distance. During this process, since the upper pitch groove 15 does not move, while the lower support groove 11a moves backward, the positioning protrusion 12 also moves backward accordingly, until it interferes with the upper pitch groove 15. Because the side end of the positioning protrusion 122 is tilted, at the interference position, the positioning protrusion 12 rotates around the hinge axis into the support groove 11a, causing the pitch groove 15 to disengage from the original positioning protrusion 122 (as shown in the figures). Figure 2b (As shown in the fourth picture). Figure 2c As shown in the second figure, the lower support groove 11a continues to move backward until the pitch groove 15 reaches the position of the next positioning protrusion 12 and locks in place, at which point the drive device stops driving backward. At this time, the carrier groove 15a at the very end of the first set of support grooves 11a is transferred from the first set of pitch support members to the second set of pitch support members.

[0049] S3. For example Figure 2c In the third figure, the new cycle repeats steps S1 and S2 until all the pitch grooves 15 on the first set of pitch support members are transferred to the second set of pitch support members.

[0050] like Figures 3 to 9 As shown, this utility model also discloses a plant planting device, including: the above-mentioned variable pitch component 1 and truss 2, wherein multiple sets of variable pitch component 1 are provided and installed on truss 2.

[0051] The variable pitch groove 15 in the variable pitch assembly 1 is an integrated cultivation trough. The drive devices in multiple variable pitch assemblies 1 control the support grooves 11 to reciprocate simultaneously, so that the variable pitch groove 15 moves between different support grooves 11 to complete the variable pitch.

[0052] In this embodiment, the truss 2 is provided with three beds, and each truss bed is provided with three zones: A, B, and C. Zone A is the planting zone, zone B is the growing zone, and zone C is the maturing zone. The spacing between the positioning protrusions 12 in zones A, B, and C increases sequentially to meet the planting space requirements of the crop at different growth stages.

[0053] The drive unit is configured as a set, and the drive unit includes: a first motor 16 with bidirectional output and a transmission rod 17 installed on both sides of the first motor 16, and a plurality of gear boxes 18 are installed on the transmission rod 17.

[0054] The number of gear boxes 18 corresponds to the number of pitch-changing components 1 installed on the truss 2, and a rack 19 is provided at the bottom of the support groove 11. The gear box 18 is connected to the rack 19. The gears in the gear box 18 (not shown in the figure) rotate under the control of the first motor 16, thereby driving the support grooves 11 in multiple sets of pitch-changing components 1 to reciprocate in the horizontal direction at the same time.

[0055] Meanwhile, limit switches (not shown in the figure) are installed at both ends of the truss 2 in the direction of movement of the variable pitch groove 15. The limit switches are electrically connected to the first motor 16. When the support groove 11 moves to the preset position, the corresponding limit switch is triggered, thereby controlling the first motor 16 to run in reverse.

[0056] Secondly, the truss 2 is inclined downward along the length of the pitch groove 15, with an inclination angle a ≤ 10°. Furthermore, the truss 2 has return tanks 21 installed on both the head and tail sides of the pitch groove 15. Several injection nozzles 22 are also installed in the return tank 21a at the head of the pitch groove 15, corresponding to the pitch groove 15. Nutrient solution is injected into the pitch groove 15, and the injection nozzles 22 are also connected to the return tank 21b at the tail of the pitch groove 15 for nutrient solution circulation.

[0057] The passage between the injection nozzle 22 and the return tank 21b located at the tail of the variable pitch tank 15 is equipped with a filter (not shown in the figure) to filter the nutrient solution.

[0058] In addition, several sets of material changing components 3 are installed on both ends of the truss 2 parallel to the pitch changing component 1. The material changing component 3 includes: telescopic rod 31 and a second motor (not shown in the figure). The telescopic rod 31 is set parallel to the support groove 11 and is located between adjacent support grooves 11.

[0059] The telescopic rod 31 is provided with a limit locking protrusion 32 at one end and connected to the second motor at the other end. The telescopic rod 31 moves under the control of the second motor. At this time, the limit locking protrusion 32 engages with one side of the pitch groove 15, thereby driving the pitch groove 15 to move onto or off the support groove 11, thus completing the loading or unloading of the pitch groove 15.

[0060] Furthermore, the plant cultivation system also includes a loading platform 4 and a unloading platform 5 installed on both sides of the truss 2. The loading platform 4 is located on the side of the variable pitch groove 15 where materials are loaded, and the unloading platform 5 is located on the side of the variable pitch groove 15 where materials are unloaded. The loading platform 4 and the unloading platform 5 are respectively equipped with a first servo mechanism 6 and a second servo mechanism 7, wherein the first servo mechanism 6 and the second servo mechanism 7 are cylinders to control the lifting and lowering of the variable pitch groove 15. In some other embodiments, the first servo mechanism 6 and the second servo mechanism 7 may also be motors to control the lifting and lowering of the variable pitch groove 15.

[0061] The loading and unloading process of this utility model is as follows: First, when the variable pitch groove 15 is placed on the loading platform 4, the first servo mechanism 6 moves upward to lift the variable pitch groove 15 upward. Then, the telescopic rod 31 extends under the control of the corresponding second motor, and the first servo mechanism 6 resets, so that the variable pitch groove 15 falls onto the telescopic rod 31. Second, the telescopic rod 31 resets under the control of the corresponding second motor, and the limiting bracket 32 ​​at the end of the telescopic rod 31 drives the variable pitch groove 15 to move, so that the variable pitch groove 15 is transported to the support groove 11, completing the loading.

[0062] After planting is completed, the variable pitch slot 15 is located on the other side of the truss 2. At this time, the telescopic rod 31 on this side extends under the control of the corresponding second motor, transporting the variable pitch slot 15 to the top of the unloading platform 5. The second servo mechanism 7 of the unloading platform 5 lifts upward, and the telescopic rod 31 resets, allowing the variable pitch slot 15 to fall onto the second servo mechanism 7. Then, the second servo mechanism 7 resets, placing the variable pitch slot 15 on the unloading platform 5, completing the unloading process.

[0063] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable pitch assembly characterized by, include: At least two sets of variable pitch support members, each set of the variable pitch support members includes a support groove and a plurality of positioning protrusions arranged on the support groove. The positioning protrusions are hinged to the support groove by a hinge shaft, and the end of the positioning protrusion extends out of the support groove. The positioning protrusions can be accommodated in the support groove by rotating about the hinge shaft. The spacing between the positioning protrusions on adjacent support grooves is different. Multiple sets of connectors, each connector having a translational limiting groove, the connector being positioned between two adjacent support grooves, one of the support grooves having a connecting shaft fixed to its end, the connecting shaft being located within the translational limiting groove, and the other adjacent support groove being fixed to the connector; Multiple sets of pitch-changing units, each set of pitch-changing units includes multiple pitch-changing slots that are perpendicular to the support slot. The pitch-changing slots are installed on the support slot and the bottom of the pitch-changing slots is provided with positioning slots. The positioning slots can be locked in the positioning slots. A drive device that controls the support groove to reciprocate in the horizontal direction.

2. A variable pitch assembly as claimed in claim 1, wherein: The variable pitch support is provided in N groups, where N≥2, and the connector and drive device are provided in N-1 groups. The drive device is not provided on the first group of support grooves along the variable pitch direction. The number of variable pitch grooves in each group of variable pitch units corresponds to the number of positioning protrusions in each group of variable pitch support.

3. A variable pitch assembly as claimed in claim 1, wherein: The top of the positioning protrusion is tilted to one side to form a tooth tip, so as to be easily locked in the positioning slot. A retaining spring is installed at the hinge end of the positioning protrusion and the support slot to ensure that the positioning protrusion is reset in time.

4. A plant cultivation device, characterized in that, include: A pitch control assembly and a truss as described in any one of claims 1-3, wherein the pitch control assembly is provided in multiple sets and is mounted on the truss; The pitch-changing groove in the pitch-changing assembly is an integrated cultivation trough. The drive devices in multiple sets of the pitch-changing assembly control the support groove to reciprocate simultaneously, so that the pitch-changing groove moves between different support grooves to complete the pitch change.

5. A plant cultivation device as described in claim 4, characterized in that: The driving device is configured as a group, and the driving device includes: a first motor and transmission rods installed on both sides of the first motor, and a plurality of gear boxes are installed on the transmission rods; The number of gear boxes corresponds to the number of pitch-changing components installed on the truss, and a rack is provided at the bottom of the support groove. The gear box is connected to the rack, and the gear in the gear box rotates under the control of the first motor, thereby driving the support grooves in multiple sets of pitch-changing components to reciprocate in the horizontal direction at the same time.

6. A plant cultivation device as described in claim 5, characterized in that: Limit switches are installed at both ends of the truss in the direction of movement of the variable pitch groove. The limit switches are electrically connected to the first motor. When the support groove moves to a preset position, the corresponding limit switch is triggered, thereby controlling the first motor to run in reverse.

7. A plant cultivation device as described in claim 4, characterized in that: The truss is inclined downward along the length of the pitch groove, and the angle of inclination a ≤ 10°. Furthermore, the truss is equipped with return tanks on both the head and tail sides of the variable pitch groove, and a number of injection nozzles are also provided in the return tank at the head of the variable pitch groove. The injection nozzles correspond to the variable pitch groove and add nutrient solution to the variable pitch groove. The injection nozzles are also connected to the return tank at the tail of the variable pitch groove to circulate the nutrient solution.

8. A plant cultivation device as described in claim 7, characterized in that: A filter is provided in the passage between the injection nozzle and the return tank located at the tail of the variable pitch tank to filter the nutrient solution.

9. A plant cultivation device as described in any one of claims 4-8, characterized in that: The truss has several sets of material changing components installed at its two ends parallel to the pitch changing component. Each material changing component includes a telescopic rod and a second motor. The telescopic rod is arranged parallel to the support groove and located between adjacent support grooves. The telescopic rod is provided with a limit cam at one end and the other end is connected to the second motor. The telescopic rod moves under the control of the second motor. At this time, the limit cam engages with one side of the pitch groove, thereby driving the pitch groove to move onto or away from the support groove, thus completing the loading or unloading of the pitch groove.

10. A plant cultivation device as described in claim 9, characterized in that, Also includes: The loading platform and unloading platform are installed on both sides of the truss. The loading platform is located on the side of the variable pitch groove where the material is loaded, and the unloading platform is located on the side of the variable pitch groove where the material is unloaded. The loading platform and the unloading platform are respectively equipped with a first servo mechanism and a second servo mechanism to control the lifting and lowering of the variable pitch groove. The servo mechanism is a motor or a cylinder.

Images