Greenhouse seedbed spray cooling system

Abstract

The invention discloses a greenhouse seedbed spraying cooling system, and belongs to the field of greenhouse plant cooling, the greenhouse seedbed spraying cooling system comprises a high-pressure pipeline, groove groups distributed at intervals are formed in the outer wall of the high-pressure pipeline, each groove group is composed of two grooves, a water outlet penetrating through the pipe wall of the high-pressure pipeline is formed between the two grooves, and the water outlet is communicated with the high-pressure pipeline. A rotating ring surrounding the outer wall of the high-pressure pipeline is arranged in one of the grooves in each groove group, atomizing nozzles which are annularly distributed are arranged on the outer wall of the rotating ring, the atomizing nozzles are divided into various types, and a water leakage preventing nozzle switching assembly is arranged between the rotating ring and the high-pressure pipeline and drives the atomizing nozzles to achieve switching. A bottom supporting adjusting assembly is arranged at the bottom of the high-pressure pipeline and controls the high-pressure pipeline to achieve angle conversion. In the greenhouse cultivation cooling process in summer, different spraying conditions can be adjusted to adapt to plants in different growth periods, and growth of the plants is better adapted.

Description

Technical Field

[0001] The invention relates to the field of greenhouse plant cooling, in particular to a greenhouse seedbed spray cooling system. Background Art

[0002] With the development of modern agricultural technology, greenhouse cultivation has become one of the most important agricultural production methods. At present, the cultivation of many precious flowers and crop seedlings are carried out in greenhouses to create a suitable growth environment for plants, in order to protect the plants from cold, overwinter or promote their growth and early flowering and fruiting.

[0003] However, when encountering high temperature seasons, the high temperature in the greenhouse will have a series of negative effects on plants. In summer, the greenhouse is exposed to sunlight, and the temperature in the greenhouse rises significantly. Overheating will directly lead to the death of plants. Therefore, it is very important to arrange the greenhouse spray cooling system reasonably. A reasonable spray cooling system can not only meet the temperature and moisture requirements of crops in the greenhouse, but also serve as an auxiliary to the wet curtain-fan cooling system inside the greenhouse.

[0004] However, generally a variety of plants are planted in a greenhouse, some of which are in the seedling period, and some are in the growth period. Their spraying needs are different. Most of the existing ones use fixed nozzles, which cannot take into account plants in different growth states, thus causing a certain impact on the growth of plants. Summary of the invention

[0005] The purpose of the present invention is to provide a greenhouse seedbed spray cooling system, which effectively solves the problem that during the spray cooling process of greenhouse plants in summer, the existing spray device cannot meet the needs of plants in different growth cycles, thereby affecting the growth of plants.

[0006] The technical solution of the present invention is as follows:

[0007] A greenhouse seedbed spray cooling system comprises a high-pressure pipeline, the outer wall of which is provided with groove groups distributed at intervals, each groove group is composed of two grooves, a water outlet penetrating the pipe wall of the high-pressure pipeline is provided between the two grooves, one of the grooves in each groove group has a rotating ring surrounding the outer wall of the high-pressure pipeline, the outer wall of the rotating ring is provided with annularly distributed atomizing nozzles, the atomizing nozzles are divided into multiple types, an anti-leakage nozzle switching component is provided between the rotating ring and the high-pressure pipeline, the anti-leakage nozzle switching component drives the atomizing nozzle to achieve switching, and a bottom support adjustment component is provided at the bottom of the high-pressure pipeline, the bottom support adjustment component controls the high-pressure pipeline to achieve angle conversion.

[0008] Furthermore, an annular sealing ring is provided in the groove, the rotating ring is pressed on the outer wall of the sealing ring, the inner diameter of the rotating ring is larger than the outer diameter of the high-pressure pipe, and the atomizing nozzle includes a high-pressure nozzle and an ultrasonic nozzle.

[0009] Furthermore, the anti-leakage nozzle switching assembly includes a water retaining ring, a linkage gear 1, a linkage gear 2, a spacing gear 1, and a spacing gear 2. The water retaining ring is movably sealed in another groove in the groove group, and the water retaining ring is located between the high-pressure pipeline and the rotating ring. The ring wall of the water retaining ring is also provided with a water outlet that overlaps with the water outlet hole of the atomizing nozzle.

[0010] Furthermore, the linkage gear 1 and the linkage gear 2 are respectively located on both sides of the rotating ring, wherein the linkage gear 1 is fixedly connected to the side wall of the rotating ring, and the linkage gear 2 is fixedly connected to the side wall of the water retaining ring.

[0011] Furthermore, the interval gear 1 and the interval gear 2 are of the same size and are located in parallel on one side of the high-pressure pipeline, the interval gear 1 and the linkage gear 1 cooperate with each other, the interval gear 2 and the linkage gear 2 cooperate with each other, the teeth on the interval gear 1 and the interval gear 2 are evenly spaced and distributed, and the teeth on the interval gear 1 and the interval gear 2 are staggered, and the interval gear 1 and the interval gear 2 will drive the linkage gear 1 and the linkage gear 2 to rotate at different times.

[0012] Furthermore, a power shaft is provided through the interval gear 1 and the interval gear 2, a vertically distributed mounting plate is provided on the power shaft, a motor is provided on the outer side of the mounting plate near the outermost part, and the output shaft of the motor is connected to the power shaft through a coupling.

[0013] Furthermore, the bottom adjustment assembly includes a limit ring, a support plate, a limit rod and a deformation elasticity. The support plate is located below the high-pressure pipeline, and the top surface of the support plate is recessed downward to form a slot. The limit rings are spaced apart on the outer wall of the high-pressure pipeline and fixedly connected to the high-pressure pipeline, and the ring wall of the limit ring is provided with evenly distributed limit holes.

[0014] Furthermore, a rotating column is symmetrically provided in the slot, and the rotating column is rotatably connected in the slot. The limiting ring is located in the slot, and the outer wall of the limiting ring is movably fitted with the outer wall of the rotating column. The limiting rod vertically penetrates the support plate, and the deformable spring is sleeved on the limiting rod and under the support plate.

[0015] Furthermore, placement grooves are relatively opened on the end faces at both ends of the high-pressure pipe, and an annular rubber ring is installed in the placement groove. The front end face of the rubber ring extends out of the front end face of the high-pressure pipe, and a filter net is provided inside the rubber ring. Clamping plates are provided on the outer walls of both ends of the high-pressure pipe, and the clamping plates are provided with penetrating locking screws near the four corners, and the locking screws are provided with matching locking nuts.

[0016] The advantages of the present invention are:

[0017] 1. The present invention arranges a groove on the high-pressure pipe, a rotating ring is arranged in the groove, and atomizing nozzles are distributed on the rotating ring. The atomizing nozzles are divided into multiple different types, so that different atomizing nozzles can be adjusted for plants in different growth states. In summer, different plants can be better cooled, ensuring that different types of plants can achieve better growth.

[0018] 2. The present invention provides a water leakage prevention nozzle switching assembly, wherein the water retaining ring is connected to the linkage gear 2, the rotating ring is connected to the linkage gear 1, the interval gear 1 cooperates with the linkage gear 1, and the interval gear 2 cooperates with the linkage gear 2. Because the gear teeth on the interval gear 1 and the interval gear 2 are arranged in a staggered manner, when the interval gear 2 drives the linkage gear 2 to rotate, the linkage gear 1 does not rotate, so that the water retaining ring closes the water outlet during the rotation process. After the closing is completed, the linkage gear 1 will rotate. At this time, the linkage gear 2 remains stationary, thereby realizing the switching of the atomizing nozzle and replacing it with a different type of nozzle, ensuring that during the nozzle replacement process, the water in the high-pressure pipeline will not leak between the rotating ring and the high-pressure pipeline. What is more important is that because the water outlet is blocked, water will not spray out of the atomizing nozzle when the atomizing nozzle is switched, avoiding the situation where the water spraying angle changes during rotation due to direct rotation of the atomizing nozzle.

[0019] 3. The present invention provides a bottom support adjustment component, wherein a limit ring is fixedly connected to the high-pressure pipeline. In the initial state, the limit rod is inserted into the limit ring to fix the high-pressure pipeline. When the limit rod is pulled out of the limit hole, the limit ring can rotate inside the support plate, thereby realizing the rotation of the high-pressure pipeline and adjusting the water spraying angle of the atomizing nozzle, so as to flexibly adjust according to the different distances from different plants to the atomizing nozzle, thereby improving the flexibility of the device.

[0020] 4. The present invention sets a rubber ring at the end of the high-pressure pipe, and a filter net is arranged inside the rubber ring, so that impurities can be filtered to a certain extent when water flows in the high-pressure pipe to avoid clogging of the atomizing nozzle. The two high-pressure pipes are locked by a clamping plate, which not only ensures the connection between the multiple high-pressure pipes, but also allows easy disassembly and replacement of the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the overall structure of the present invention;

[0022] Figure 2 It is a side view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the high-pressure pipeline structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of components such as a rotating ring and an atomizing nozzle in the present invention;

[0025] Figure 5 It is a cross-sectional view of the structure of the rotating ring and water retaining ring and other components inside the high-pressure pipeline of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the water retaining ring and the linkage gear of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the rotating ring and the linkage gear and other components of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the linkage gear 1 and linkage gear 2 of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the bottom support adjustment component of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the supporting plate, the limiting ring and other components of the present invention;

[0031] Fig.11 It is a schematic diagram of the structure of the filter screen, the clamping plate and other components of the present invention.

[0032] : 1. high-pressure pipeline; 2. groove; 3. water outlet; 4. rotating ring; 5. atomizing nozzle; 6. sealing ring; 7. water retaining ring; 8. linkage gear one; 9. linkage gear two; 10. interval gear one; 11. interval gear two; 12. power shaft; 13. mounting plate; 14. motor; 15. limiting ring; 16. support plate; 17. limiting rod; 18. deformation elasticity; 19. slot; 20. limiting hole; 21. rotating column; 22. placement groove; 23. rubber ring; 24. filter screen; 25. tight plate; 26. locking screw; 27. locking nut. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] like Figures 1 to 11 As shown, the present invention provides a greenhouse seedbed spray cooling system, which includes a high-pressure pipe 1, and the outer wall of the high-pressure pipe 1 is provided with groove groups distributed at intervals, each groove group is composed of two grooves, and the rotating ring 4 and the water retaining ring 7 can be movably engaged through the arranged grooves 2, thereby ensuring that the rotating ring 4 and the water retaining ring 7 can achieve normal rotation.

[0035] A water outlet 3 penetrating through the wall of the high-pressure pipe 1 is provided between the two grooves 2 , and the atomizing nozzle 5 sprays water through the water outlet 3 .

[0036] One of the grooves 2 in each groove group has a rotating ring 4 surrounding the outer wall of the high-pressure pipe 1, and the outer wall of the rotating ring 4 is provided with a ring-shaped atomizing nozzle 5. The atomizing nozzle 5 is divided into multiple types. By rotating the rotating ring 4, different types of atomizing nozzles 5 can be switched, so as to switch according to plants with different growth cycles to better adapt to the growth of plants.

[0037] A water leakage prevention nozzle switching assembly is arranged between the rotating ring 4 and the high-pressure pipeline 1, and the water leakage prevention nozzle switching assembly drives the atomizing nozzle 5 to achieve switching. A bottom supporting adjustment assembly is arranged at the bottom of the high-pressure pipeline 1, and the bottom supporting adjustment assembly controls the high-pressure pipeline 1 to achieve angle conversion.

[0038] An annular sealing ring 6 is provided in the groove 2, and the rotating ring 4 is pressed on the outer wall of the sealing ring 6. The inner diameter of the rotating ring 4 is larger than the outer diameter of the high-pressure pipeline 1. The sealing ring 6 can improve the sealing performance between the rotating ring 4 and the water retaining ring 7 and the high-pressure pipeline 1 to prevent water leakage.

[0039] The atomizing nozzle 5 includes a high-pressure nozzle and an ultrasonic nozzle. Different nozzles can adapt to plants in different growth states.

[0040] The anti-leakage nozzle switching assembly includes a water retaining ring 7, a linkage gear 1 8, a linkage gear 2 9, an interval gear 10, and an interval gear 2 11. The water retaining ring 7 is movably sealed in another groove 2 in the groove group, and the water retaining ring 7 is located between the high-pressure pipeline 1 and the rotating ring 4. A water outlet 3 that coincides with the water outlet hole of the atomizing nozzle 5 is also provided on the ring wall of the water retaining ring 7. The water retaining ring 7 is movably sealed and fitted with the rotating ring 4, and the water retaining ring 7 can rotate on the inner wall of the rotating ring 4.

[0041] The linkage gear 1 8 and the linkage gear 2 9 are respectively located on both sides of the rotating ring 4, wherein the linkage gear 1 8 is fixedly connected to the side wall of the rotating ring 4, and the linkage gear 2 9 is fixedly connected to the side wall of the water retaining ring 7, so that when the linkage gear 2 9 rotates, it can drive the water retaining ring 7 to achieve simultaneous movement and rotation, so that the water in the high-pressure pipe 1 can intermittently pass through the water outlet 3.

[0042] The interval gear 10 and the interval gear 2 11 are of the same size and are located on one side of the high-pressure pipeline 1 in a parallel manner. The interval gear 10 and the linkage gear 1 8 cooperate with each other, and the interval gear 2 11 and the linkage gear 2 9 cooperate with each other. The gear teeth on the interval gear 10 and the interval gear 2 11 are evenly spaced and distributed, and the gear teeth on the interval gear 10 and the interval gear 2 11 are staggered. The interval gear 10 and the interval gear 2 11 will drive the linkage gear 1 8 and the linkage gear 2 9 to rotate at different times. Specifically, the gear teeth on the interval gear 10 and the interval gear 2 11 divide it into eight equal parts, and the gear teeth occupy half of the area on the interval gear 10 and the interval gear 2 11 respectively and are staggered. Because the interval gear 10 and the interval gear 2 11 are parallel, if the gear teeth on the interval gear 10 are translated to the interval gear 2 11, they together constitute a complete tooth surface.

[0043] A power shaft 12 runs through the interval gear 10 and the interval gear 2 11, and a vertically distributed mounting plate 13 is provided on the power shaft 12. A motor 14 is provided on the outer side of the mounting plate 13 near the outermost part, and the output shaft of the motor 14 is connected to the power shaft 12 through a coupling, thereby realizing automatic rotation of the interval gear 10 and the interval gear 2 11, thereby improving the switching efficiency of the atomizing nozzle 5.

[0044] The bottom support adjustment component includes a limit ring 15, a support plate 16, a limit rod 17 and a deformation elastic 18. The support plate 16 is located below the high-pressure pipeline 1, and the top surface of the support plate 16 is recessed downward to form a slot 19. The limit rings 15 are spaced apart on the outer wall of the high-pressure pipeline 1 and are fixedly connected to the high-pressure pipeline 1. The ring wall of the limit ring 15 is provided with evenly distributed limit holes 20. The limit rod 17 is inserted into the limit hole 20 through the set limit hole 20, so that the limit ring 15 can be fixed, thereby ensuring the fixation of the high-pressure pipeline 1, so that the atomizing nozzle 5 remains stationary when spraying water, and the stability during water spraying is improved.

[0045] A rotating column 21 is symmetrically arranged in the slot 19, and the rotating column 21 is rotatably connected in the slot 19. The limiting ring 15 is located in the slot 19, and the outer wall of the limiting ring 15 is movably fitted with the outer wall of the rotating column 21. The limiting rod 17 vertically penetrates the support plate 16, and the deformable spring is sleeved on the limiting rod 17 and under the support plate 16. When the limiting rod 17 is pulled out of the limiting hole 20, the limiting ring 15 can rotate inside the support plate 16, so that the high-pressure pipeline 1 can be rotated, and the water spraying angle of the atomizing nozzle 5 can be adjusted, so that it can be flexibly adjusted according to the different distances from different plants to the atomizing nozzle 5, thereby improving the flexibility of the device.

[0046] Placement grooves 22 are relatively opened on the end faces at both ends of the high-pressure pipe 1, and an annular rubber ring 23 is installed in the placement groove 22. The front end face of the rubber ring 23 extends out of the front end face of the high-pressure pipe 1, and a filter screen 24 is arranged inside the rubber ring 23. Clamping plates 25 are arranged on the outer walls of both ends of the high-pressure pipe 1. The clamping plates 25 are provided with penetrating locking screws 26 near the four corners, and the locking screws 26 are provided with matching locking nuts 27, so that when water flows in the high-pressure pipe 1, impurities can be filtered to a certain extent to avoid clogging of the atomizing nozzle 5. The two high-pressure pipes 1 are locked by the clamping plates 25, which not only ensures the connection between multiple high-pressure pipes 1, but also allows easy disassembly and replacement of the filter screen 24.

[0047] Detailed usage and effects of the above embodiments:

[0048] When the temperature is high in summer, the plants in the greenhouse need to be cooled. Water will be transported in the high-pressure pipe 1. There are water outlets 3 spaced apart on the high-pressure pipe 1. Water will pass through the water outlets 3 and the atomizing nozzle 5 to cool the indoor plants. When encountering plants in different growth states, the atomizing nozzle 5 needs to be adjusted.

[0049] At this time, start the motor 14, the motor 14 will drive the power shaft 12 to rotate, the power shaft 12 is connected with the interval gear 10 and the interval gear 2 11, the gear teeth on the interval gear 10 and the interval gear 2 11 are divided into four parts, and the interval gear 10 and the interval gear 2 11 are evenly divided into eight parts. When the power shaft 12 rotates, the gear teeth on the interval gear 2 11 will first cooperate with the linkage gear 2 9, driving the linkage gear 2 9 to rotate 45 degrees. At this time, the gear teeth on the interval gear 10 will not cooperate with the linkage gear 1 8, so that no rotation will occur. The linkage gear 2 9 is connected to the water retaining ring 7, and the water retaining ring 7 rotates together. During the rotation, the water outlet 3 on the water retaining ring 7 and the water outlet on the high-pressure pipe 1 will intersect. The water retaining ring 7 is staggered, and the water outlet 3 on the high-pressure pipeline 1 is blocked, and the atomizing nozzle 5 no longer sprays water. The power shaft 12 continues to rotate. At this time, the interval gear 2 11 is no longer coordinated with the linkage gear 2 9, and the interval gear 1 10 is coordinated with the linkage gear 1 8. The linkage gear rotates, driving the rotating ring 4 to rotate, driving the atomizing nozzle 5 to switch, and the other nozzle coincides with the water outlet 3 on the high-pressure pipeline 1. However, the water retaining ring 7 still blocks the water outlet 3 at this time, and the power shaft 12 is rotating, causing the interval gear 2 11 and the linkage gear to rotate again, and the water outlet 3 on the water retaining ring 7 will coincide with the water outlet 3 on the high-pressure pipeline 1, so that water is sprayed out from the atomizing nozzle 5 again, completing the switching of the atomizing nozzle 5.

[0050] When we need to adjust the spray distance of the atomizing nozzle 5, in the initial state, the limiting rod 17 on the support plate 16 is inserted into the limiting hole 20 on the limiting ring 15 to fix the limiting ring 15 and ensure the fixation of the high-pressure pipeline 1. The limiting rod 17 is pulled downward to disengage the limiting rod 17 from the limiting hole 20 on the limiting ring 15. At this time, the limiting ring 15 can rotate on the rotating column 21 in the slot 19. When the atomizing nozzle for spraying water is rotated to a suitable angle, the deformed spring is reset to allow the limiting rod 17 to be reinserted into the limiting hole 20 to change the angle of the high-pressure pipeline 1.

[0051] Both ends of the high-pressure pipe 1 have rubber rings 23 embedded in the placement grooves 22, and a filter screen 24 is installed in the rubber ring 23. When water flows in the high-pressure pipe 1 and enters the atomizing nozzle 5, the water is filtered to prevent impurities from entering the atomizing nozzle 5 and clogging it. By fitting the two clamping plates 25 on the high-pressure pipes 1 together, the rubber rings 23 will be tightly attached together, and then locked on the locking screw 26 by the locking screw 26, the two clamping plates 25 are fixed, thereby realizing the assembly of high-pressure pipes 1 of different lengths.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A greenhouse seedbed spray cooling system, characterized in that: The invention comprises a high-pressure pipe (1), wherein the outer wall of the high-pressure pipe (1) is provided with groove groups distributed at intervals, each groove group is composed of two grooves, a water outlet (3) penetrating the pipe wall of the high-pressure pipe (1) is provided between the two grooves (2), a rotating ring (4) surrounding the outer wall of the high-pressure pipe (1) is provided in one of the grooves (2) in each groove group, an annularly distributed atomizing nozzle (5) is provided on the outer wall of the rotating ring (4), and the atomizing nozzle (5) is divided into multiple types, an anti-leakage nozzle switching component is provided between the rotating ring (4) and the high-pressure pipe (1), and the anti-leakage nozzle switching component drives the atomizing nozzle (5) to achieve switching, and a bottom support adjustment component is provided at the bottom of the high-pressure pipe (1), and the bottom support adjustment component controls the high-pressure pipe (1) to achieve angle conversion.

2. The greenhouse seedbed spray cooling system according to claim 1, characterized in that: An annular sealing ring (6) is provided in the groove (2); the rotating ring (4) is pressed against the outer wall of the sealing ring (6); the inner diameter of the rotating ring (4) is larger than the outer diameter of the high-pressure pipe (1); and the atomizing nozzle (5) comprises a high-pressure nozzle and an ultrasonic nozzle.

3. The greenhouse seedbed spray cooling system according to claim 1, characterized in that: The anti-leakage nozzle switching assembly comprises a water retaining ring (7), a linkage gear 1 (8), a linkage gear 2 (9), a spacing gear 1 (10), and a spacing gear 2 (11); the water retaining ring (7) is movably sealed in another groove (2) in the groove group, and the water retaining ring (7) is located between the high-pressure pipeline (1) and the rotating ring (4); and a water outlet (3) which overlaps with the water outlet hole of the atomizing nozzle (5) is also provided on the ring wall of the water retaining ring (7).

4. The greenhouse seedbed spray cooling system according to claim 3, characterized in that: The linkage gear 1 (8) and the linkage gear 2 (9) are respectively located on both sides of the rotating ring (4), wherein the linkage gear 1 (8) is fixedly connected to the side wall of the rotating ring (4), and the linkage gear 2 (9) is fixedly connected to the side wall of the water retaining ring (7).

5. The greenhouse seedbed spray cooling system according to claim 4, characterized in that: The interval gear 1 (10) and the interval gear 2 (11) are of the same size and are located in parallel on one side of the high-pressure pipeline (1); the interval gear 1 (10) and the linkage gear 1 (8) cooperate with each other; the interval gear 2 (11) and the linkage gear 2 (9) cooperate with each other; the gear teeth on the interval gear 1 (10) and the interval gear 2 (11) are evenly spaced and distributed; and the gear teeth on the interval gear 1 (10) and the interval gear 2 (11) are staggered; the interval gear 1 (10) and the interval gear 2 (11) drive the linkage gear 1 (8) and the linkage gear 2 (9) to rotate at different times.

6. The greenhouse seedbed spray cooling system according to claim 5, characterized in that: A power shaft (12) is provided through the interval gear 1 (10) and the interval gear 2 (11), a vertically distributed mounting plate (13) is provided on the power shaft (12), a motor (14) is provided on the outer side of the mounting plate (13) close to the outermost edge, and an output shaft of the motor (14) is connected to the power shaft (12) via a coupling.

7. The greenhouse seedbed spray cooling system according to claim 1, characterized in that: The bottom support adjustment assembly comprises a limiting ring (15), a supporting plate (16), a limiting rod (17) and a deformation elastic member (18); the supporting plate (16) is located below the high-pressure pipeline (1), and the top surface of the supporting plate (16) is recessed downward to form a clamping groove (19); the limiting rings (15) are distributed at intervals on the outer wall of the high-pressure pipeline (1) and are fixedly connected to the high-pressure pipeline (1); and the ring wall of the limiting ring (15) is provided with evenly distributed limiting holes (20).

8. The greenhouse seedbed spray cooling system according to claim 7, characterized in that: A rotating column (21) is symmetrically arranged in the slot (19), and the rotating column (21) is rotatably connected in the slot (19). The limiting ring (15) is located in the slot (19), and the outer wall of the limiting ring (15) is movably fitted with the outer wall of the rotating column (21). The limiting rod (17) vertically penetrates the support plate (16), and the deformable spring is sleeved on the limiting rod (17) and below the support plate (16).

9. The greenhouse seedbed spray cooling system according to claim 1, characterized in that: The end surfaces of both ends of the high-pressure pipe (1) are provided with placement grooves (22) opposite to each other, an annular rubber ring (23) is installed in the placement groove (22), the front end surface of the rubber ring (23) extends out of the front end surface of the high-pressure pipe (1), a filter screen (24) is arranged inside the rubber ring (23), and the outer walls of both ends of the high-pressure pipe (1) are provided with clamping plates (25), the clamping plates (25) are provided with penetrating locking screws (26) near the four corners, and the locking screws (26) are provided with matching locking nuts (27).

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