Accurate water-control initiation device for raising rubber seedlings

Abstract

The invention discloses an accurate water control initiation device for rubber seedling raising, and belongs to the technical field of rubber seedling raising. The device comprises a base, and one end of the top of the base is provided with an outer shell. The supporting spring is arranged at the bottom of the tray and cooperates with the positioning and releasing mechanism, the tray can be automatically driven to drive the seedling pot to ascend according to the weight change of the seedling pot after water loss as a trigger signal, the tray is linked with the drainage mechanism in the ascending process, and quantitative water replenishing is achieved; in each water loss and supplement cycle, the compensation mechanism can automatically control the supporting disc to move upwards, the elastic force is increased by adjusting the compression amount of the supporting spring, the basic weight difference value generated due to plant weight increment is accurately supplemented, it is ensured that the trigger mechanism can be stably driven no matter which growth stage the rubber seedlings are in, and weight changes caused by water evaporation are generated; the consistent triggering sensitivity is always kept, and the core defect that the traditional equipment cannot irrigate as required due to seedling weight increment is thoroughly overcome.

Description

TECHNICAL FIELD

[0001] The application relates to a water control triggering device, in particular to a precise water control triggering device for rubber seedling cultivation, and belongs to the technical field of rubber seedling cultivation. BACKGROUND

[0002] As a core seedling variety of tropical economic crops, the growth state of rubber seedlings in the seedling stage directly determines the subsequent transplanting survival rate and tree rubber production performance, and precise water control and uniform light reception are two key factors to ensure the healthy growth of rubber seedlings. At present, in the scenario of large-scale rubber seedling cultivation, gravity-triggered quantitative watering equipment is widely used due to its simple structure, no need for power support, and adaptation to the needs of outdoor and remote area seedling cultivation. The core working principle of this type of equipment is: based on the weight change of the seedling pot (containing substrate and seedlings), the water consumption is perceived, when the weight decreases to a preset threshold, the watering mechanism is triggered to open through mechanical transmission, and the equipment is automatically closed after the water is replenished to the set weight, realizing quantitative irrigation.

[0003] However, the existing gravity-triggered water control equipment has significant technical defects in actual application: On the one hand, rubber seedlings in the seedling stage are in a rapid growth stage, and the continuous accumulation of dry matter leads to the continuous increase of plant weight, which makes the basic weight of the seedling pot continue to rise, and the proportion of weight change caused by water evaporation gradually decreases. This phenomenon directly causes the passive upward movement of the trigger threshold, which not only delays the irrigation trigger time, but also causes the rubber seedlings to be in a state of water shortage for a long time, affecting root development and stem thickness, and in severe cases, as the weight of the seedlings continues to increase, the water change is not enough to drive the mechanical trigger mechanism, eventually leading to the complete failure of the equipment and the inability to achieve on-demand irrigation; On the other hand, the existing equipment's seedling platform is mostly fixed structure, and rubber seedlings have typical phototropic growth characteristics. If the light direction is fixed during seedling cultivation, the seedlings will grow obliquely on the side with sufficient light, which can easily cause problems such as crown deformation, stem elongation and weakness, etc., leading to decreased stress resistance of the seedlings, reduced survival rate after transplanting, and difficulty in cultivating high-quality and strong seedlings that meet the requirements of large-scale planting.

[0004] Therefore, a precise water control triggering device for rubber seedling cultivation is designed to optimize the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a precise water control triggering device for rubber seedling cultivation, which is provided with supporting springs at the bottom of the tray, and cooperates with the positioning release mechanism composed of the mounting groove, the stop block and the reset spring, so that the weight change after the seedling pot loses water can be used as a trigger signal to automatically drive the tray to lift the seedling pot, and in the lifting process, the drainage mechanism composed of the drainage port, the guide groove, the water baffle, the reset spring II, the opening and the connecting rod is linked to realize quantitative water replenishment, and the whole process does not need power support and is completed completely by mechanical transmission, so that the practicability is higher, and through the compensation mechanism composed of the second turntable, the second corrugated chute, the sliding block, the vertical rod, the inner groove, the outer screw pipe, the rectangular rod and the positioning bolt, the compensation mechanism can automatically control the upward movement of the supporting disc in each water loss and water replenishment cycle, the compression amount of the supporting spring is adjusted to increase the elastic force, the basic weight difference caused by the weight gain of the plant is accurately compensated, and no matter which growth stage the rubber seedling is in, the weight change caused by water evaporation can stably drive the trigger mechanism, the trigger sensitivity is always consistent, the core defect that the traditional equipment cannot irrigate according to the needs due to the weight gain of the seedling is completely solved, the rotating mechanism composed of the first turntable, the first corrugated chute, the guide rod and the anti-skid groove is arranged at the top of the tray, the first turntable is rotatably connected with the tray, in each water replenishment process, the seedling pot is automatically rotated by a preset angle by mechanical transmission, the water replenishment action is combined with light adjustment, the limitation of the fixed light direction can be broken without additional operation, the phototropic growth characteristics of the rubber seedling are effectively offset, the problems of seedling crown deformation, stem lengthening and weakness are avoided, and the quality of the seedling is significantly improved.

[0006] The object of the present application can be achieved by adopting the following technical scheme: A precise water control triggering device for rubber seedling cultivation, comprising a base; One end of the top of the base is provided with an outer shell, and two vertical supporting rods are fixed on the inner top of the outer shell, and a supporting disc is vertically and slidably arranged between the bottoms of the two groups of supporting rods; The top of the outer shell is vertically and slidably provided with a rectangular sleeve, a supporting spring is arranged between the top of the supporting disc and the inside of the rectangular sleeve, and the top end of the rectangular sleeve is horizontally fixed with a tray; The top of the tray is provided with a rotating mechanism, which is used to drive the rubber seedling pot to rotate during the water replenishment process of the device to realize uniform light reception of the seedling in all directions; The inner bottom of the outer shell is provided with a compensation mechanism, which is used to adjust the compression amount of the supporting spring during the water replenishment process of the device to compensate for the basic weight difference caused by the weight gain of the rubber seedling plant; A vertical support rod is vertically fixed at the middle position of the top of the base, and the side of the support rod is provided with a positioning release mechanism matched with the tray, which is used to limit and lock the tray when the rubber seedling pot has not lost water to a set threshold, and release the tray when the seedling pot loses weight to a set threshold; The top of the support rod is provided with a water tank, and the bottom of the water tank near the tray is provided with a drainage mechanism. The drainage mechanism is linked with the tray to trigger and link the water tank to quantitatively drain water to the rubber seedling raising pot when the tray rises.

[0007] Preferably, the boom is inverted T-shaped structure, and the bottom end of the horizontal section of the boom is attached to the bottom of the support disc. A guide hole adapted to the vertical section of the boom is provided through the support disc.

[0008] Preferably, a circular limiting groove is provided at the middle position of the top of the support disc. The inner diameter of the limiting groove is adapted to the outer diameter of the bottom end of the supporting spring, and the bottom end of the supporting spring is embedded in the limiting groove.

[0009] Preferably, an annular anti-dropping plate is integrally formed at the bottom of the outer side wall of the rectangular sleeve. The outer diameter of the anti-dropping plate is greater than the inner diameter of the opening at the top of the outer shell. The inside of the rectangular sleeve is a cylindrical groove, and the top end of the supporting spring extends into the cylindrical groove and abuts against the inner top of the rectangular sleeve.

[0010] Preferably, the positioning and releasing mechanism includes a mounting groove, a stop block and a reset spring one. The mounting groove is provided on the side of the support rod near the tray in the horizontal direction. The stop block is slidingly embedded in the mounting groove. The two ends of the reset spring one are fixedly connected with the inner end of the stop block and the groove bottom of the mounting groove, respectively. The end of the stop block away from the reset spring one is hemispherical structure, and the spherical end is attached to the bottom of the tray to form a limiting support for the tray.

[0011] Preferably, the top of the water tank is provided with a burette. The burette is in communication with the inside of the water tank. A float ball water valve is installed on the burette to control the water supply start and stop of the water tank.

[0012] Preferably, the drainage mechanism includes a drainage port, a guide groove, a water baffle, a reset spring two, a through port and a connecting rod. The drainage port is provided at the bottom of the water tank near the tray in the horizontal direction. The guide groove is provided at the bottom of the water tank in the vertical direction, and the guide groove is in communication with the drainage port and vertically penetrates the drainage port. The water baffle is vertically slidingly embedded in the guide groove. The two ends of the reset spring two are fixedly connected with the top end of the water baffle and the inner top end of the guide groove, respectively. The through port is provided at the middle of the water baffle. In the initial state, the through port and the drainage port are distributed in a staggered manner. The top end of the connecting rod is vertically fixedly connected with the bottom end of the water baffle, and the bottom end vertically extends to the upper side of the tray.

[0013] Preferably, the rotating mechanism includes a first rotating disc, a first corrugated sliding groove, a guide rod and an anti-skid groove. The first rotating disc is rotatably installed on the top of the tray through a bearing. The first corrugated sliding groove is provided on the outer side wall of the first rotating disc in the circumferential direction. The guide rod is fixed to the support rod in the horizontal direction close to the side of the tray, and the end of the guide rod away from the support rod is slidingly embedded in the first corrugated sliding groove; The anti-skid groove is arranged on the top surface of the first rotating disc.

[0014] Preferably, the compensation mechanism comprises a second rotating disc, a second corrugated sliding groove, a sliding block, a vertical rod, an outer screw pipe and a distance adjusting assembly, the second rotating disc is rotatably installed on the inner bottom of the outer shell through a bearing, and the second corrugated sliding groove is arranged on the side surface of the second rotating disc in the circumferential direction; The sliding block is symmetrically arranged on both sides of the second rotating disc, and the bottom of the sliding block is slidingly embedded in the second corrugated sliding groove; The vertical rod is vertically fixed on the bottom of the tray on both sides, and the bottom ends of the two groups of vertical rods are vertically and downward slidingly penetrated through the top of the outer shell and are fixedly connected with the sliding blocks on the corresponding sides, respectively; The outer screw pipe is screwedly installed at the middle position of the second rotating disc, and the distance adjusting assembly is arranged between the outer screw pipe and the supporting disc, and the distance adjusting assembly is used for adjusting the height of the supporting disc, so as to adjust the initial supporting force of the supporting spring.

[0015] Preferably, the distance adjusting assembly comprises an inner groove, a rectangular rod and a positioning bolt, and the inner groove is arranged on the bottom of the second rotating disc; The rectangular rod is vertically slidingly penetrated in the inner hole of the outer screw pipe, and the top end of the rectangular rod is fixedly connected with the bottom of the supporting disc; The positioning bolt is screwedly penetrated in the bottom of the outer side wall of the outer screw pipe in the horizontal direction, and the inner end of the positioning bolt is penetrated into the inner hole of the outer screw pipe and abuts against the side edge of the rectangular rod, so as to lock the relative position of the rectangular rod and the outer screw pipe.

[0016] The beneficial effects of the present application are: The rubber seedling precision water control priming device for seedling raising provided by the present application can be triggered by the weight change of the seedling pot after water loss as a trigger signal, automatically drive the tray to drive the seedling pot to rise, and link with the drainage mechanism composed of the drainage port, the guide groove, the water baffle, the reset spring two, the through port and the connecting rod in the process of rising, so that quantitative water replenishment is realized, and the whole process does not need power support, and is completely completed by mechanical transmission, so that the practicality is higher. The compensation mechanism, consisting of a second turntable, a second corrugated groove, a slider, a vertical rod, an inner groove, an outer helical tube, a rectangular rod, and positioning bolts, can automatically control the support plate to move upward during each water loss and replenishment cycle. By adjusting the compression of the support spring to increase the elasticity, it can accurately compensate for the basic weight difference caused by the increase in plant weight. This ensures that no matter what growth stage the rubber seedling is in, the weight change caused by water evaporation can stably drive the triggering mechanism and maintain a consistent triggering sensitivity. This completely solves the core defect of traditional equipment that cannot irrigate on demand due to the increase in seedling weight. By setting a rotating mechanism consisting of a first turntable, a first corrugated groove, a guide rod, and an anti-slip groove on the top of the tray, and with the first turntable rotatably connected to the tray, the seedling pot can be automatically rotated at a preset angle by mechanical transmission during each watering process. This combines the watering action with the adjustment of light exposure, breaking the limitation of fixed light direction without additional operation. It effectively counteracts the phototropic growth characteristics of rubber seedlings, avoids problems such as seedling crown deformity, excessive and weak stem growth, and significantly improves the quality of seedlings. Attached Figure Description

[0017] Figure 1 This is a front view of a preferred embodiment of the precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 2 This is a front sectional view of a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 3 This is a cross-sectional view of the inner shell of a preferred embodiment of the precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 4 This is a front view of the compensation mechanism in a preferred embodiment of the precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 5 This is a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention. Figure 2 Enlarged view of point A in the middle; Figure 6 This is a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention. Figure 2 Enlarged view at point B in the middle; Figure 7 This is a diagram of the rotating mechanism of a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 8 This is a rectangular sleeve diagram of a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention; Figure 9 This is a diagram of a support plate in a preferred embodiment of a precision water control initiation device for rubber seedling cultivation according to the present invention.

[0018] In the diagram: 1. Base; 2. Outer casing; 3. Hanging rod; 4. Support plate; 401. Limiting groove; 5. Rectangular sleeve; 501. Anti-detachment plate; 6. Support springs; 7. Tray; 8. Rotating mechanism; 801. First turntable; 802. First corrugated groove; 803. Guide rod; 804. Anti-slip groove; 9. Compensation mechanism; 901. Second turntable; 902. Second corrugated groove; 903. Slider; 904. Vertical rod; 905. Inner groove; 906. Outer threaded tube; 907. Rectangular rod; 908. Positioning bolt; 10. Support rod; 11. Positioning and release mechanism; 1101. Mounting slot; 1102. Stop block; 1103. Return spring one; 12. Water tank; 13. Burette; 14. Float valve; 15. Drainage mechanism; 1501. Drain outlet; 1502. Guide channel; 1503. Water baffle; 1504. Second return spring; 1505. Through port; 1506. Connecting rod. Detailed Implementation

[0019] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] Example 1: As Figures 1-9 As shown, this embodiment provides a precision water control initiation device for rubber seedling cultivation, including a base 1; The base 1 has an outer shell 2 at one end of its top. Inside the outer shell 2, there are two vertically fixed hanging rods 3 on both sides of the top. A support plate 4 is vertically slidably arranged between the bottoms of the two sets of hanging rods 3. A rectangular sleeve 5 is vertically slidably mounted on the top of the outer shell 2. A support spring 6 is provided between the top of the support plate 4 and the inside of the rectangular sleeve 5. A tray 7 is horizontally fixed at the top of the rectangular sleeve 5. The top of the tray 7 is equipped with a rotating mechanism 8, which is used to drive the rubber seedling pot to rotate during the water replenishment process of the device, so as to achieve uniform light exposure of the seedlings in all directions. The inner bottom of the outer shell 2 is provided with a compensation mechanism 9, which is used to adjust the compression of the support spring 6 during the water replenishment process to make up for the difference in basic weight caused by the growth and weight gain of the rubber seedlings. A support rod 10 is vertically fixed at the middle of the top of the base 1, and the side of the support rod 10 is provided with a positioning and releasing mechanism 11 matched with the tray 7, which is used to limit and lock the tray 7 when the rubber seedling pot does not lose water to a set threshold, and release the tray 7 when the rubber seedling pot loses weight to a set threshold. The top of the support rod 10 is provided with a water tank 12, and the bottom of the side close to the tray 7 of the water tank 12 is provided with a drainage mechanism 15 linked with the tray 7, which is used to trigger and link the water tank 12 to quantitatively drain water to the rubber seedling pot when the tray 7 rises.

[0021] The total working principle is as follows: in the initial state, the seedling pot containing rubber seedlings and substrate is placed on the rotating mechanism 8 at the top of the tray 7, and the weight of the seedling pot is transmitted to the rectangular sleeve 5 through the tray 7, so that the rectangular sleeve 5 presses the supporting spring 6 downward, and the supporting spring 6 is in a compressed state in the limiting groove 401 of the supporting disc 4. At this time, the stop block 1102 of the positioning and releasing mechanism 11 extends out of the mounting groove 1101 of the support rod 10 under the elastic force of the reset spring I 103, and the hemispherical end thereof is attached to the bottom of the tray 7 to form a limiting support for the tray 7, so that the tray 7 remains in a stable state; the water baffle 1503 of the drainage mechanism 15 is in a low position under the action of the reset spring II 504, and the through hole 1505 is distributed in a staggered manner with the drainage port 1501 of the water tank 12, so that the water in the water tank 12 cannot flow out; the water tank 12 is supplemented with water through the titration tube 13 at the top, and the float ball water valve 14 automatically controls the start and stop of water supplement according to the water level in the water tank 12 to maintain the stability of the water level in the water tank 12.

[0022] When the water in the seedling pot gradually evaporates, the total weight of the seedling pot gradually decreases, and the elastic force of the supporting spring 6 gradually becomes greater than the total weight. When the weight decreases to a set threshold, the supporting spring 6 begins to stretch, pushing the rectangular sleeve 5 and the tray 7 to slide upward along the outer shell 2. During the upward movement of the tray 7, the bottom thereof presses the hemispherical end of the stop block 1102, forcing the stop block 1102 to compress the reset spring I 103 and retract into the mounting groove 1101, and the positioning and releasing mechanism 11 releases the limiting lock of the tray 7.

[0023] The tray 7 continues to rise, and the top thereof contacts the bottom end of the connecting rod 1506 of the drainage mechanism 15 and pushes the connecting rod 1506 to move upward, the connecting rod 1506 drives the water baffle 1503 to vertically slide along the guide groove 1502, and the reset spring II 504 is compressed. When the through hole 1505 on the water baffle 1503 is aligned with the drainage port 1501 of the water tank 12, the water in the water tank 12 flows to the seedling pot through the drainage port 1501 and the through hole 1505 in a quantitative manner, achieving precise water supplement.

[0024] During the water replenishing process, the tray 7 drives the first rotating disc 801 of the rotating mechanism 8 to move upward synchronously. Since the guide rod 803 is fixed to the support rod 10 and the end is embedded in the first corrugated sliding groove 802 of the first rotating disc 801, the first rotating disc 801 rotates when it rises, and in turn drives the top seedling pots to rotate synchronously, so that the rubber seedlings are evenly exposed to light in all directions, offsetting the phototropic growth characteristics.

[0025] At the same time, the tray 7 drives the vertical rods 904 on both sides to move upward synchronously, and the sliding block 903 at the bottom of the vertical rod 904 slides along the second corrugated sliding groove 902 on the side of the second rotating disc 901 of the compensation mechanism 9, driving the second rotating disc 901 to rotate around its own axis. The outer screw pipe 906 screwed in the middle of the second rotating disc 901 rotates synchronously with the second rotating disc 901, and the outer screw pipe 906 is connected with the support disc 4 through the rectangular rod 907, and the positioning bolt 908 locks the relative position of the rectangular rod 907 and the outer screw pipe 906, so that when the outer screw pipe 906 rotates, it drives the rectangular rod 907 and the support disc 4 to slide upward along the vertical section of the suspender 3. The upward movement of the support disc 4 increases the compression amount of the support spring 6, compensates for the difference in base weight caused by the growth and weight gain of the rubber seedlings, and ensures that the weight change caused by subsequent water evaporation can still stably trigger the mechanism to act.

[0026] When the seedling pots are replenished with water to the set weight, their total weight is again greater than the elastic force of the support spring 6, and the tray 7 begins to slide downward. The connecting rod 1506 loses the support of the tray 7, the water baffle 1503 is reset under the action of the reset spring two 1504, the through hole 1505 is misaligned with the drain hole 1501, and the water replenishing stops. When the tray 7 continues to move downward to the position of the stop block 1102, the stop block 1102 is again extended under the action of the reset spring one 1103 to support the tray 7 again, and the positioning release mechanism 11 restores the limiting lock. At the same time, the downward movement of the tray 7 drives the vertical rod 904 and the sliding block 903 to fall back, further driving the second rotating disc 901 to fine-tune rotation, so that the height of the support disc 4 remains adaptive, completing a "water loss-triggering-water replenishing-compensation-resetting" cycle, and continuously providing precise water control and uniform light exposure conditions for the rubber seedlings.

[0027] In the following, the scheme in the first embodiment is further introduced in combination with a specific working mode, and details are described below: In this embodiment, the suspender 3 is in an inverted T-shaped structure, and the bottom end of the horizontal section of the suspender 3 is in close contact with the bottom of the support disc 4. A guide hole adapted to the vertical section of the suspender 3 is provided through the support disc 4, and the vertical section of the suspender 3 is slidably arranged in the guide hole.

[0028] Local working principle: the boom 3 is inverted T-shaped structure, the horizontal section bottom end and the bottom of the support disc 4 are attached, the lower limit of the support disc 4 is formed, and the support disc 4 is avoided to move downwards excessively; the guide hole is opened on the support disc 4, and the vertical section of the boom 3 is adapted, the vertical section of the boom 3 is slidably arranged in the guide hole, the up and down sliding of the support disc 4 is accurately guided, the horizontal state of the support disc 4 is ensured, and the inclination of the support disc 4 is avoided to cause the uneven stress of the support spring 6.

[0029] In the embodiment, the circular limiting groove 401 is arranged at the middle position of the top of the support disc 4, the inner diameter of the limiting groove 401 is adapted to the outer diameter of the bottom end of the support spring 6, and the bottom end of the support spring 6 is embedded in the inside of the limiting groove 401.

[0030] Local working principle: the limiting groove 401 plays a fixing and limiting role on the bottom end of the support spring 6, prevents the support spring 6 from being deviated and inclined in the compression or expansion process, and ensures that the elastic force of the support spring 6 is always transmitted to the rectangular sleeve 5 and the tray 7 in the vertical direction.

[0031] In the embodiment, the annular anti-disengagement plate 501 is integrally formed at the bottom of the outer side wall of the rectangular sleeve 5, the outer diameter of the anti-disengagement plate 501 is greater than the inner diameter of the top opening of the outer shell 2, the inside of the rectangular sleeve 5 is a cylindrical groove, the top end of the support spring 6 extends into the cylindrical groove and abuts against the inner top of the rectangular sleeve 5.

[0032] Local working principle: when the rectangular sleeve 5 slides upwards with the tray 7, the anti-disengagement plate 501 will abut against the top edge of the outer shell 2, mechanical limiting is formed, the rectangular sleeve 5 is avoided to disengage from the top opening of the outer shell 2, the integrity and the operation stability of the device structure are ensured; the cylindrical groove in the inside of the rectangular sleeve 5 provides the accommodation space for the top end of the support spring 6, the top end of the support spring 6 is tightly abutted against the inner top of the rectangular sleeve 5, and the lossless elastic force transmission is ensured.

[0033] In the embodiment, the positioning release mechanism 11 includes the mounting groove 1101, the stop block 1102 and the reset spring 1103, the mounting groove 1101 is arranged on the side of the support rod 10 close to the tray 7 in the horizontal direction, the stop block 1102 is slidably embedded in the mounting groove 1101, the two ends of the reset spring 1103 are fixedly connected with the inner end of the stop block 1102 and the groove bottom of the mounting groove 1101, the end of the stop block 1102 away from the reset spring 1103 is a hemispherical structure, and the spherical end is attached to the bottom of the tray 7, the limiting support of the tray 7 is formed.

[0034] Local working principle: in the initial state, the reset spring 1103 is in a natural state of extension, pushing the stop block 1102 to extend out of the installation groove 1101, and the hemispherical end of the stop block 1102 is attached to the bottom of the tray 7, relying on the elastic force of the reset spring 1103 to support the tray 7, achieving limiting locking; when the tray 7 has an upward trend due to the weight loss of the seedling pot, the hemispherical end of the stop block 1102 on the bottom of the tray 7 generates a lateral pressure, which is decomposed into an axial force along the installation groove 1101, pushing the stop block 1102 to compress the reset spring 1103 and retract into the installation groove 1101, releasing the limiting of the tray 7; when the tray 7 is reset, the stop block 1102 extends out again under the action of the reset spring 1103, relocking the tray 7.

[0035] In this embodiment, the top of the water tank 12 is provided with a burette 13, which is in communication with the inside of the water tank 12, and a float ball water valve 14 is installed on the burette 13, which is used to control the water replenishment start and stop of the water tank 12.

[0036] Local working principle: the burette 13 is in communication with the inside of the water tank 12, and is used to supplement water to the water tank 12; the float ball water valve 14 is installed on the burette 13, and the float ball floats on the water surface of the water tank 12. When the water level in the water tank 12 decreases, the float ball moves downward with the water level, driving the float ball water valve 14 to open, and the burette 13 supplements water to the water tank 12; when the water level rises to a set height, the float ball moves upward with the water level, driving the float ball water valve 14 to close, stopping water replenishment, thereby automatically maintaining the stable water level in the water tank 12, providing protection for the quantitative drainage of the drainage mechanism 15.

[0037] In this embodiment, the drainage mechanism 15 includes a drainage port 1501, a guide groove 1502, a water baffle 1503, a reset spring 1504, a through hole 1505 and a connecting rod 1506. The drainage port 1501 is opened in the horizontal direction on the bottom of the side of the water tank 12 close to the tray 7, the guide groove 1502 is opened in the vertical direction on the bottom of the water tank 12, and the guide groove 1502 is in communication with the drainage port 1501 and vertically penetrates the drainage port 1501. The water baffle 1503 is vertically slidably embedded in the guide groove 1502, and the two ends of the reset spring 1504 are fixedly connected with the top end of the water baffle 1503 and the inner top end of the guide groove 1502, respectively. The through hole 1505 is opened in the middle of the water baffle 1503, and in the initial state, the through hole 1505 is distributed in a staggered manner with the drainage port 1501. The top end of the connecting rod 1506 is vertically fixedly connected with the bottom end of the water baffle 1503, and the bottom end vertically extends upward to the top of the tray 7.

[0038] Local working principle: in the initial state, the water baffle 1503 is in the low position under the elastic force of the reset spring two 1504, the through hole 1505 is misaligned with the drain port 1501, the drain port 1501 is shielded, and the water in the water tank 12 cannot flow out; when the tray 7 rises, the top of the tray 7 pushes the connecting rod 1506 to move upward, the connecting rod 1506 drives the water baffle 1503 to slide upward along the guide groove 1502, and the reset spring two 1504 is compressed; when the water baffle 1503 rises to the position where the through hole 1505 is aligned with the drain port 1501, the water in the water tank 12 flows out through the drain port 1501 and the through hole 1505, and the water is supplied to the nursery pot; when the tray 7 moves downward, the connecting rod 1506 loses support, the water baffle 1503 is reset under the action of the reset spring two 1504, the through hole 1505 is misaligned with the drain port 1501 again, the water supply stops, and the water supply action is linked with the position of the tray 7.

[0039] In the embodiment, the rotating mechanism 8 includes a first rotating disc 801, a first corrugated sliding groove 802, a guide rod 803 and an anti-skid groove 804. The first rotating disc 801 is rotatably installed on the top of the tray 7 through a bearing. The first corrugated sliding groove 802 is formed on the outer side wall of the first rotating disc 801 in the circumferential direction. The guide rod 803 is fixed to one side of the support rod 10 close to the tray 7 in the horizontal direction, and the end of the guide rod 803 away from the support rod 10 is slidingly embedded in the first corrugated sliding groove 802. The anti-skid groove 804 is formed on the top surface of the first rotating disc 801.

[0040] Local working principle: when the tray 7 drives the first rotating disc 801 to move upward, the position of the guide rod 803 is fixed, the end of the guide rod 803 slides relative to the inclined surface of the first corrugated sliding groove 802, thereby generating a circumferential driving force on the first rotating disc 801, so that the first rotating disc 801 rotates around the bearing. The nursery pot is placed in the anti-skid groove 804 on the top surface of the first rotating disc 801. The anti-skid groove 804 increases the friction between the nursery pot and the first rotating disc 801, so as to avoid the sliding of the nursery pot during rotation, thereby driving the nursery pot to rotate synchronously, and achieving uniform light receiving of seedlings in all directions.

[0041] In the embodiment, the compensation mechanism 9 includes a second rotating disc 901, a second corrugated sliding groove 902, a sliding block 903, a vertical rod 904, an outer screw pipe 906 and a distance adjusting assembly. The second rotating disc 901 is rotatably installed on the inner bottom of the outer shell 2 through a bearing. The second corrugated sliding groove 902 is formed on the side surface of the second rotating disc 901 in the circumferential direction. The sliding blocks 903 are symmetrically arranged on both sides of the second rotating disc 901, and the bottom of the sliding block 903 is slidingly embedded in the second corrugated sliding groove 902. The vertical rods 904 are vertically fixed on both sides of the bottom of the tray 7. The bottom ends of the two groups of vertical rods 904 are vertically downwardly slidingly penetrating through the top of the outer shell 2 and are fixedly connected with the sliding blocks 903 on the corresponding sides, respectively. The outer screw pipe 906 is threadedly installed at the middle position of the second rotating disc 901, and a spacing adjustment assembly is arranged between the outer screw pipe 906 and the support disc 4, which is used to adjust the height of the support disc 4, thereby adjusting the initial supporting force of the support spring 6.

[0042] Local working principle: when the tray 7 rises, the vertical rod 904 drives the sliding block 903 to move upward, the sliding block 903 slides relative to the inclined surface of the second corrugated sliding groove 902, and the second rotating disc 901 is driven to rotate; the outer screw pipe 906 is threadedly installed in the middle of the second rotating disc 901, the outer screw pipe 906 cooperates with the rectangular rod 907, and the top end of the rectangular rod 907 is fixedly connected with the bottom of the support disc 4; when the second rotating disc 901 rotates, the outer screw pipe 906 rotates synchronously, and since the rectangular rod 907 is limited by the support disc 4 and the suspender 3 and cannot rotate, the outer screw pipe 906 moves axially upward along the rectangular rod 907 when rotating, pushes the rectangular rod 907 and the support disc 4 to slide upward, and adjusts the compression amount of the support spring 6; conversely, when the tray 7 moves downward, the sliding block 903 drives the second rotating disc 901 to rotate reversely, the outer screw pipe 906 is finely adjusted in position, and dynamic compensation of the compression amount of the support spring 6 is realized.

[0043] In the embodiment, the spacing adjustment assembly comprises an inner groove 905, a rectangular rod 907 and a positioning bolt 908, the inner groove 905 is arranged at the bottom of the second rotating disc 901; The rectangular rod 907 vertically slides through the inner hole of the outer screw pipe 906, and the top end of the rectangular rod 907 is fixedly connected with the bottom of the support disc 4; The positioning bolt 908 is threadedly arranged at the bottom of the outer side wall of the outer screw pipe 906 in the horizontal direction, and the inner end of the positioning bolt 908 penetrates into the inner hole of the outer screw pipe 906 and abuts against the side edge of the rectangular rod 907, which is used to lock the relative position of the rectangular rod 907 and the outer screw pipe 906.

[0044] Local working principle: when the positioning bolt 908 is loosened, the rectangular rod 907 can slide along the inner hole of the outer screw pipe 906, the initial height of the support disc 4 is adjusted, and then the initial compression amount and the initial elastic force of the support spring 6 are adjusted; after the adjustment is completed, the positioning bolt 908 is tightened, the relative position of the positioning bolt 908 and the rectangular rod 907 is locked through the friction force, and the stability of the initial supporting force of the support spring 6 is ensured.

[0045] Embodiment three: the schemes in embodiment one and embodiment two are further introduced in combination with specific working modes, which are described in detail as follows: Initial setting stage: According to the water requirement characteristics of the growth stage of rubber seedlings, the initial compression amount of the supporting spring 6 is adjusted through the spacing adjustment assembly. Loosen the positioning bolt 908, slide the rectangular rod 907 to change the height of the supporting disc 4, and then adjust the initial elastic force of the supporting spring 6, so that after the seedling pot is placed, the tray 7 can be stably supported by the stop block 1102 of the positioning release mechanism 11, at this time the drainage mechanism 15 is in the closed state, the rotating mechanism 8 remains stationary, and the water tank 12 maintains the set water level through the float ball water valve 14 and the titration tube 13.

[0046] Water loss sensing stage: The water in the seedling pot gradually decreases through evaporation and absorption by rubber seedlings, and the total weight of the seedling pot continues to decrease. The compression amount of the supporting spring 6 gradually releases as the weight decreases, and the elastic force gradually emerges. When the weight decreases to a set threshold (i.e. the water consumption reaches the standard for water replenishment), the elastic force of the supporting spring 6 exceeds the total weight of the seedling pot and the tray 7, and starts to push the rectangular sleeve 5 and the tray 7 upwards.

[0047] Trigger release stage: During the upward movement of the tray 7, the bottom of the tray 7 is pressed against the hemispherical end of the stop block 1102, and the stop block 1102 compresses the reset spring 1103 under lateral pressure, retracting from the mounting groove 1101 and releasing the limit on the tray 7. After the tray 7 is freed, it continues to rise under the action of the elastic force of the supporting spring 6, triggering subsequent water replenishment, rotation and compensation actions.

[0048] Quantitative water replenishment stage: After the tray 7 rises to contact the connecting rod 1506, it pushes the connecting rod 1506 and the water baffle 1503 upwards along the guide groove 1502, and the reset spring 1504 is compressed. When the through hole 1505 is aligned with the drainage port 1501, the water in the water tank 12 flows quantitatively to the seedling pot through the drainage port 1501 and the through hole 1505. During the water replenishment process, the water level in the water tank 12 is replenished in real time through the float ball water valve 14 and the titration tube 13, ensuring stable drainage pressure and achieving quantitative water replenishment.

[0049] Uniform light receiving stage: When the tray 7 rises, it simultaneously drives the first turntable 801 to move upwards, the relative sliding of the guide rod 803 and the first corrugated slide groove 802 drives the first turntable 801 to rotate, and then drives the seedling pot to rotate. The rotation angle is determined by the number and shape of the corrugations of the first corrugated slide groove 802, and the seedling pot rotates a preset angle during each water replenishment process, so that the rubber seedlings receive light uniformly in all directions, effectively offsetting phototropism and avoiding crown deformation and stem elongation.

[0050] Weight compensation stage: the tray 7 rises to drive the vertical rod 904 and the slider 903 to move upwards, the cooperation between the slider 903 and the second corrugated chute 902 drives the second turntable 901 to rotate, the outer spiral tube 906 rotates with the second turntable 901 and moves upwards along the rectangular rod 907, which pushes the support disc 4 to slide upwards along the suspender 3, and the compression amount of the support spring 6 is increased. This action accurately compensates for the basic weight difference caused by the weight gain of the rubber seedling, ensuring that the weight change can still reach the trigger threshold when water evaporates next time, and maintaining consistent trigger sensitivity.

[0051] Reset cycle stage: when the seedling pot is replenished with water to the set weight, the total weight exceeds the elastic force of the support spring 6, the tray 7 starts to slide downwards. The connecting rod 1506 loses support, the water baffle 1503 is reset under the action of the reset spring two 1504, and the water replenishment stops; when the tray 7 moves down to the position of the stop block 1102, the stop block 1102 extends to relock the tray 7; at the same time, the tray 7 moves down to drive the vertical rod 904 and the slider 903 to fall back, drive the second turntable 901 to fine-tune, and further optimize the compression amount of the support spring 6. The device returns to the initial state, and waits for the water evaporation to the set threshold next time, and repeats the above cycle to continuously provide precise water control and uniform light protection for the rubber seedling.

[0052] The above is only a further embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. A precision water control initiation device for rubber seedling cultivation, characterized in that, Including the base (1); The base (1) has an outer shell (2) at one end of its top. Inside the outer shell (2), both sides of the top are vertically fixed with hanging rods (3). A support plate (4) is vertically slidably arranged between the bottoms of the two sets of hanging rods (3). A rectangular sleeve (5) is vertically slidably installed on the top of the outer shell (2), a support spring (6) is provided between the top of the support plate (4) and the inside of the rectangular sleeve (5), and a tray (7) is horizontally fixed at the top of the rectangular sleeve (5). The top of the tray (7) is equipped with a rotating mechanism (8), which is used to drive the rubber seedling pot to rotate during the water replenishment process of the device so as to achieve uniform light exposure of the seedlings in all directions. The inner bottom of the outer shell (2) is provided with a compensation mechanism (9). The compensation mechanism (9) is used to adjust the compression of the support spring (6) during the water replenishment process to make up for the difference in basic weight caused by the growth and weight gain of the rubber seedlings. A support rod (10) is vertically fixed at the middle position of the top of the base (1). The side of the support rod (10) is provided with a positioning release mechanism (11) that cooperates with the tray (7). The positioning release mechanism (11) is used to limit and lock the tray (7) when the rubber seedling pot has not lost water to the set threshold, and to release the tray (7) when the seedling pot loses water and weight to the set threshold. A water tank (12) is provided at the top of the support rod (10). A drainage mechanism (15) is provided at the bottom of the water tank (12) near the tray (7). The drainage mechanism (15) is linked with the tray (7) to trigger and link the water tank (12) to drain water quantitatively into the rubber seedling pot when the tray (7) rises.

2. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The rod (3) has an inverted T-shaped structure, and the bottom of the horizontal section of the rod (3) is in contact with the bottom of the support plate (4). The support plate (4) has a guide hole that is adapted to the vertical section of the rod (3), and the vertical section of the rod (3) slides through the guide hole.

3. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: A circular limiting groove (401) is provided at the middle position of the top of the support plate (4). The inner diameter of the limiting groove (401) is adapted to the outer diameter of the bottom end of the support spring (6). The bottom end of the support spring (6) is embedded in the limiting groove (401).

4. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The bottom of the outer wall of the rectangular sleeve (5) is integrally formed with an annular anti-detachment plate (501). The outer diameter of the anti-detachment plate (501) is larger than the inner diameter of the top opening of the outer shell (2). The inside of the rectangular sleeve (5) is a cylindrical groove. The top of the support spring (6) extends into the cylindrical groove and abuts against the inner top of the rectangular sleeve (5).

5. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The positioning release mechanism (11) includes a mounting groove (1101), a stop block (1102), and a return spring (1103). The mounting groove (1101) is opened horizontally on the side of the support rod (10) near the tray (7). The stop block (1102) is slidably embedded in the mounting groove (1101). The two ends of the return spring (1103) are fixedly connected to the inner end of the stop block (1102) and the bottom of the mounting groove (1101), respectively. The end of the stop block (1102) away from the return spring (1103) is a hemispherical structure, and the spherical end is in contact with the bottom of the tray (7) to form a limiting support for the tray (7).

6. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The top of the water tank (12) is equipped with a burette (13), which is connected to the inside of the water tank (12). A float valve (14) is installed on the burette (13), which is used to control the water replenishment and shutdown of the water tank (12).

7. A precision water control initiation device for rubber seedling cultivation according to claim 1 or 6, characterized in that: The drainage mechanism (15) includes a drain outlet (1501), a guide channel (1502), a baffle plate (1503), a second return spring (1504), a through-hole (1505), and a connecting rod (1506). The drain outlet (1501) is opened horizontally at the bottom of the water tank (12) near the tray (7). The guide channel (1502) is opened vertically at the bottom of the water tank (12). The guide channel (1502) is connected to the drain outlet (1501) and vertically penetrates the drain outlet (1501). The baffle plate (1503) is vertically slidably embedded in the guide groove (1502), and the two ends of the reset spring (1504) are fixedly connected to the top of the baffle plate (1503) and the inner top of the guide groove (1502) respectively. The opening (1505) is located in the middle of the baffle plate (1503). In the initial state, the opening (1505) and the drain outlet (1501) are staggered. The top of the connecting rod (1506) is vertically fixed to the bottom of the baffle plate (1503), and its bottom extends vertically downward to the top of the tray (7).

8. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The rotating mechanism (8) includes a first turntable (801), a first corrugated groove (802), a guide rod (803) and an anti-slip groove (804). The first turntable (801) is rotatably mounted on the top of the tray (7) via a bearing. The first corrugated groove (802) is opened along the circumferential direction on the outer side wall of the first turntable (801). The guide rod (803) is fixed horizontally to the side of the support rod (10) near the tray (7), and the end of the guide rod (803) away from the support rod (10) is slidably embedded in the first corrugated groove (802); Anti-slip grooves (804) are formed on the top surface of the first turntable (801).

9. The precision water control initiation device for rubber seedling cultivation according to claim 1, characterized in that: The compensation mechanism (9) includes a second turntable (901), a second corrugated slide (902), a slider (903), a vertical rod (904), an external helical tube (906), and a spacing adjustment assembly. The second turntable (901) is rotatably mounted on the inner bottom of the outer shell (2) via a bearing. The second corrugated slide (902) is opened on the side of the second turntable (901) along the circumferential direction. The sliders (903) are symmetrically arranged on both sides of the second turntable (901), and the bottom of the sliders (903) is slidably embedded in the second corrugated groove (902); The vertical rods (904) are vertically fixed to both sides of the bottom of the tray (7). The bottom ends of the two sets of vertical rods (904) slide vertically downward through the top of the outer shell (2) and are fixedly connected to the corresponding sliders (903); The external threaded tube (906) is threaded at the middle position of the second turntable (901), and a spacing adjustment component is provided between the external threaded tube (906) and the support plate (4). The spacing adjustment component is used to adjust the height of the support plate (4) and thus adjust the initial support force of the support spring (6).

10. The precision water control initiation device for rubber seedling cultivation according to claim 9, characterized in that: The spacing adjustment assembly includes an inner groove (905), a rectangular rod (907), and a positioning bolt (908). The inner groove (905) is located at the bottom of the second turntable (901). The rectangular rod (907) slides vertically through the inner hole of the external helical tube (906), and the top of the rectangular rod (907) is fixedly connected to the bottom of the support plate (4); The positioning bolt (908) is threaded horizontally through the bottom of the outer wall of the outer threaded tube (906), and the inner end of the positioning bolt (908) penetrates into the inner hole of the outer threaded tube (906) and abuts against the side of the rectangular rod (907) to lock the relative position of the rectangular rod (907) and the outer threaded tube (906).

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