Irrigation nozzle and greenhouse automatic irrigation system

Abstract

The invention discloses an irrigation nozzle and an automatic greenhouse irrigation system, and relates to the field of irrigation technology.According to the disclosed irrigation nozzle, the angle of the spraying end of a spraying head is adjusted through mutual cooperation of an assembling frame and an adjusting mechanism, the irrigation range of the spraying head can be adjusted during irrigation, and when irrigation is stopped, the spraying head is driven to rotate; the phenomenon that residual water in the spraying head slowly drips can be avoided; the disclosed irrigation system is based on the irrigation nozzles, the irrigation nozzles are arranged close to the ground, the advantages of suspended arrangement are integrated, the phenomenon that residual water in the nozzles slowly drips is avoided, meanwhile, the problem that irrigation blind areas occur due to arrangement close to the ground is solved, and the irrigation quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of irrigation technology, and in particular to an irrigation sprinkler and a greenhouse automatic irrigation system. Background Art

[0002] With the development of production, greenhouses are being used more and more widely. In addition to vegetable production, greenhouses are currently also used for potted and cut flower cultivation, fruit tree production, forest seedling cultivation, and ornamental tree cultivation. Technical measures to replenish the water needed by crops. In order to ensure the normal growth of crops and obtain high and stable yields, crops must be supplied with sufficient water. Under natural conditions, the water requirements of crops are often not met due to insufficient precipitation or uneven distribution. Therefore, irrigation must be carried out to replenish water. The existing irrigation method usually installs water pipelines and irrigation nozzles in the greenhouse. The irrigation nozzles are installed on the water pipelines to irrigate the greenhouse. There are two layout methods:

[0003] Method 1: The water pipeline is suspended above the crops through a bracket, so that the irrigation range of the irrigation nozzle is increased and there is no blind area for irrigation. However, the arrangement process is time-consuming and laborious. At the same time, when irrigation is stopped, the water cannot be sprayed directly due to the decrease in water pressure in the water pipe. This part of water will drip slowly from the nozzle. Since the nozzle position is fixed, water droplets dripping from the same position for a long time will leave puddles in the greenhouse and cause excessive moisture in this area, which is not conducive to planting;

[0004] Method 2: The water supply pipeline is laid close to the ground in the planting area, and multiple irrigation nozzles are arranged at intervals on the water supply pipeline according to the irrigation range of the irrigation nozzles to cover the entire planting area. Although there is no dripping at the nozzles, it is blocked by the irrigation nozzles themselves, which will cause uneven irrigation or irrigation blind spots, making it impossible to effectively cover some areas. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an irrigation sprinkler and a greenhouse automatic irrigation system.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An irrigation sprinkler comprises a sprinkler head, an angle adjustment mechanism and an assembly frame, wherein the assembly frame comprises a base located above a water supply pipeline and fixed on the ground, a rotating platform is provided on the base, a fixed seat is provided on the rotating platform, and an assembly slot for installing the angle adjustment mechanism is provided on the fixed seat; the adjustment mechanism comprises a flippable adjustment rod arranged in the assembly slot, one end of the adjustment rod is equipped with a sprinkler head, and the other end is rotatably equipped with a telescopic rod, and the other end of the telescopic rod is hinged at the bottom of the assembly slot; the sprinkler head has a spraying end away from the adjustment rod, a water inlet end is located at the side, and the water inlet end is connected to the water supply pipeline through a hose, the angle between the adjustment rod and the telescopic rod can be changed by adjusting the length of the telescopic rod, when the sprinkler head is in an operating state, the irrigation range of the sprinkler head can be adjusted by changing the angle between the adjustment rod and the telescopic rod, and when the sprinkler head is in an idle state, the angle between the adjustment rod and the telescopic rod is an obtuse angle, thereby avoiding the phenomenon of slow dripping of residual water in the sprinkler head.

[0008] Taking into account the high water pressure in the hose of the irrigation sprinkler when it is in operation, the hose is prone to violent swinging due to the impact of the water pressure, resulting in the problem that the connection is easily damaged. Therefore, in some embodiments, the above-mentioned irrigation sprinkler also includes a pipe laying mechanism, the pipe laying mechanism includes a reset spring and an assembly part respectively arranged on the adjusting rod and the fixing seat, the assembly part has a through hole, and the two ends of the reset spring are respectively connected to the two through holes one by one to form a pipe laying pipeline. After the hose passes through the pipe laying pipeline, it is connected to the water inlet end of the sprinkler head, and the middle part of the reset spring is fixedly connected to the hose. Preferably, a circular arrangement groove is also provided on the bottom circumference of the fixing seat, and the part of the hose located from the pipe laying pipeline to the water supply pipeline is coiled on the arrangement groove.

[0009] Preferably, a shielding block is detachably mounted on the notch of the arrangement groove, the area of ​​the shielding block is smaller than the area of ​​the notch of the arrangement groove, and a rubber pad is provided on the side close to the hose.

[0010] Preferably, the length from the connection point of the rotating rod on the assembly slot to the end for mounting the spray head is shorter than the length from the connection point of the rotating rod on the assembly slot to the end for connecting the telescopic rod.

[0011] Preferably, the angle α between the adjusting rod and the telescopic rod is defined as follows:

[0012]

[0013] Wherein, β is the length of the telescopic rod, γ is the distance between the connection point of the rotating rod on the assembly slot and the connection point between the rotating rod and the telescopic rod, and μ is the distance between the connection point of the rotating rod on the assembly slot and the connection point of the telescopic rod on the assembly slot.

[0014] An automatic irrigation system for a greenhouse comprises a plurality of the above-mentioned irrigation nozzles and controllers respectively used to control the working status of the plurality of irrigation nozzles. The plurality of irrigation nozzles are arranged in the irrigation area of ​​the greenhouse, and every two irrigation nozzles form an irrigation group. The edges of the two irrigation areas formed by two adjacent irrigation groups intersect. In the irrigation group, the effective irrigation area of ​​an irrigation nozzle covers the irrigation blind area of ​​another irrigation nozzle.

[0015] Preferably, a plurality of soil moisture detectors connected to the controller are evenly arranged in the irrigation area of ​​the greenhouse.

[0016] Preferably, drainage grooves are provided around the irrigation area of ​​the greenhouse.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The irrigation sprinkler disclosed in the present invention utilizes the provided assembly frame and the adjustment mechanism to cooperate with each other to achieve adjustment of the spray end angle of the sprinkler head, and can achieve adjustment of the irrigation range of the sprinkler head during irrigation. When irrigation is stopped, the phenomenon of slow dripping of residual water inside the sprinkler head can be avoided.

[0019] 2. The irrigation system disclosed in the present invention is highly automated. The irrigation nozzles are arranged close to the ground and have the advantages of suspended arrangement. While avoiding the phenomenon of slow dripping of residual water inside the sprinkler heads, it also solves the problem of blind spots in irrigation caused by the close-to-the-ground arrangement, thereby ensuring the quality of irrigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the irrigation sprinkler of the present invention;

[0021] Figure 2 is a schematic side view of the irrigation sprinkler of the present invention;

[0022] Figure 3 is a schematic diagram of the top view of the irrigation sprinkler of the present invention;

[0023] Figure 4 It is a schematic diagram of the arrangement of the irrigation system of the present invention.

[0024] Figure ID:

[0025] 1. Sprinkler head, 2. Angle adjustment mechanism, 21. Adjustment rod, 22. Telescopic rod, 3. Assembly frame, 31. Base, 32. Rotating table, 33. Fixed seat, 34. Assembly slot, 35. Layout slot, 36. Block, 4. Water pipeline, 5. Hose, 6. Pipe laying mechanism, 61. Reset spring, 62. Assembly parts, 7. Irrigation group, 71. Irrigation blind area, 72. Effective irrigation area, 8. Soil moisture detector, 9. Drainage trough. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0027] Example 1

[0028] like Figure 1 The irrigation sprinkler shown in the figure comprises a sprinkler head 1, an angle adjustment mechanism 2 and an assembly frame 3, wherein the assembly frame 3 comprises a base 31 located above a water pipeline 4 and fixed on the ground, the water pipeline 4 is arranged close to the ground in the planting area of ​​the greenhouse to provide irrigation water to the sprinkler head 1, a rotating platform 32 is provided on the base 31, the rotating platform 32 has a fixed seat 33, the fixed seat 33 is provided with an assembly groove 34 for installing the angle adjustment mechanism 2, the adjustment mechanism 2 comprises a reversible adjustment rod 21 arranged in the assembly groove 34, and the adjustment rod 21 is A spray head 1 is mounted on one end, and a telescopic rod 22 is rotatably mounted on the other end. The other end of the telescopic rod 22 is hinged at the bottom of the assembly groove 34. The spraying end of the spray head 1 is away from the adjusting rod 21, and the water inlet end is located at the side. The water inlet end is connected to the water pipeline 4 through a hose 5. During implementation, the direction of the spraying end of the spray head 1 on the adjusting rod 21 can be changed by controlling the length of the telescopic rod 22, so that the purpose of adjusting the irrigation range of the spray head 1 can be achieved during irrigation operations, and residual water in the spray head 1 can be prevented from dripping out after the irrigation is completed. Specifically, when the sprinkler head 1 is in operation, the angle between the adjusting rod 21 and the telescopic rod 22 is changed by adjusting the length of the telescopic rod 22, thereby changing the direction of the spraying end of the sprinkler head 1, thereby adjusting the irrigation range of the sprinkler head 1; when the sprinkler head is in standby state, the angle between the adjusting rod 21 and the telescopic rod 22 is made obtuse by changing the length of the telescopic rod 22. At this time, the irrigation end of the sprinkler head 1 is upward, thereby preventing the residual water in the sprinkler head 1 from slowly dripping.

[0029] The angle between the adjusting rod 21 and the telescopic rod 22 is defined as follows:

[0030]

[0031] Among them, β is the length of the telescopic rod 22, γ is the distance between the connection point of the rotating rod 23 on the assembly groove 34 and the connection point between the rotating rod 23 and the telescopic rod 22, and μ is the distance between the connection point of the rotating rod 23 on the assembly groove 34 and the connection point of the telescopic rod 22 on the assembly groove 34.

[0032] like Figure 3As shown, the above-mentioned adjusting rod 21 is connected to the assembly groove 34 through the first rotating rod 23. The adjusting rod 21 has an assembly hole for the first rotating rod 23 to pass through. One end of the adjusting rod 21 for assembling the telescopic rod 22 is provided with a connecting groove 24. The telescopic end of the telescopic rod 22 is located in the connecting groove 24 and is connected to the connecting groove 24 through the second rotating rod 25.

[0033] Example 2

[0034] On the basis of the above embodiments, considering that the water pressure in the hose 5 is high during operation of the irrigation sprinkler, the hose 5 is easily swung violently due to the impact of the water pressure, causing damage to the connection between the hose 5 and the water delivery pipeline 4 and the sprinkler 1, further, as Figure 1 As shown, the above-mentioned irrigation sprinkler head also includes a pipe laying mechanism 6, which includes a return spring 61 and an assembly part 62 respectively arranged on the adjustment rod 21 and the fixing seat 33. The assembly part 62 has a through hole, and the two ends of the return spring 61 are respectively connected to the two through holes one by one to form a pipe laying pipeline. The hose 5 is connected to the water inlet end of the sprinkler head 1 after passing through the pipe laying pipeline, and the middle part of the return spring 62 is fixedly connected to the hose 5. In the process of using the irrigation sprinkler head, when the telescopic rod 22 is adjusted to change the orientation of the irrigation end of the sprinkler head 1 on the adjustment rod 21, the horizontal height of the sprinkler head 1 will change. At this time, the pipe laying pipeline uses the return spring 62 to have the telescopic characteristic in the axial direction so that the length of the hose 5 between the two assembly parts 62 can adapt to the change of the horizontal height of the sprinkler head 1. The return spring 62 is fixed at both ends and has a certain constraint force in the radial direction to limit the hose 5, so as to reduce the swing amplitude of the part of the hose 5 close to the sprinkler head 1 when it is subjected to water pressure impact. Further, as Figure 1-2 As shown, a circular arrangement groove 35 is also provided on the circumferential side of the bottom of the fixing seat 33, and the portion of the hose 5 located from the pipe laying pipeline to the water supply pipeline 4 is coiled on the arrangement groove 35, thereby reducing the swingable length of the hose 5 between the connection of the water supply pipeline 4 and the assembly 62 on the fixing seat 33, thereby reducing the swing amplitude of the portion of the hose 5 close to the water supply pipeline 4 when subjected to water pressure impact. Specifically, the fixing seat 33 rotates with the rotating table 32, and the hose 5 coiled on the arrangement groove 35 contracts or releases the hose 5 with the rotation of the fixing seat 33, thereby shortening the swingable length between the connection of the water supply pipeline 4 and the assembly 62 on the fixing seat 33, while adapting to the change in the spacing between the two assembly parts 62.

[0035] As a preferred solution of the above embodiment, in order to prevent the hose 5 coiled on the arrangement groove 35 from being swung out of the arrangement groove 35 due to water pressure impact, a shielding block 36 is detachably installed on the notch of the arrangement groove 35. The area of ​​the shielding block 36 is smaller than the area of ​​the notch of the arrangement groove 35, and a rubber pad is provided on the side close to the hose 5 to achieve the purpose of protecting the hose 5.

[0036] As a preferred solution of the above embodiment, the length from the connection point of the rotating rod 23 on the assembly groove 34 to the end for installing the spray head 1 is shorter than the length from the connection point of the rotating rod 23 on the assembly groove 34 to the end for connecting the telescopic rod 22, which is equivalent to a lever, so that only a small force is required to change the orientation of the spray head 1 on the rotating rod 23.

[0037] Example 3

[0038] Based on the above embodiments, a greenhouse automatic irrigation system is also provided. Figure 4 The device shown includes a plurality of the above-mentioned irrigation nozzles and controllers for controlling the working states of the plurality of irrigation nozzles respectively. The plurality of irrigation nozzles are arranged in the irrigation area 100 of the greenhouse, and every two irrigation nozzles form an irrigation group 7. In the irrigation group 7, the effective irrigation area 72 of the irrigation nozzle covers the irrigation blind area 71 of another irrigation nozzle, thereby avoiding the occurrence of irrigation blind areas 71 of the irrigation nozzles. The edges of the two irrigation areas formed by the two adjacent irrigation groups 7 intersect, while ensuring that the irrigation range of the irrigation group 7 can cover the entire greenhouse irrigation area and reducing the number of irrigation nozzles. Among them, a plurality of soil moisture detectors 8 connected to the controller are evenly arranged in the irrigation area of ​​the greenhouse. The operation state of the irrigation nozzles is controlled by optimizing the arrangement position of the irrigation nozzles and detecting the soil moisture data of the soil moisture detectors 8. The device has high automation and solves the problem of irrigation blind areas caused by the irrigation nozzles being arranged close to the ground, thereby ensuring the quality of irrigation.

[0039] Taking into account that some water from the irrigation nozzles near the sides of the greenhouse cannot reach the irrigation area of ​​the greenhouse during operation, further, drainage grooves 9 are opened on the sides of the irrigation area of ​​the greenhouse. Water outside the irrigation area of ​​the greenhouse is blocked by the greenhouse itself and gathered in the drainage grooves 9. In specific implementation, a water collection pool can be built to store the water gathered in the drainage grooves 9 for reuse, thereby reducing the consumption of water resources.

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An irrigation sprinkler, characterized in that: The invention comprises a spray head (1), an angle adjustment mechanism (2) and an assembly frame (3), wherein the assembly frame (3) comprises a base (31) located above a water delivery pipeline (4) and fixed on the ground, a rotating platform (32) being provided on the base, a fixing seat (33) being provided on the rotating platform (32), and an assembly groove (34) for installing the angle adjustment mechanism (2) being provided on the fixing seat (33); The adjustment mechanism (2) comprises a reversible adjustment rod (21) arranged in the assembly groove (34), and one end of the adjustment rod (21) is equipped with the spray head (1), and the other end is rotatably equipped with a telescopic rod (22), and the other end of the telescopic rod (22) is hinged to the bottom of the assembly groove (34); the spraying end of the spray head (1) is away from the adjustment rod (21), the water inlet end is located at the side, and the water inlet end is connected to the water supply pipeline (4) through a hose (5); when the spray head (1) is in a standby state, the angle between the adjustment rod (21) and the telescopic rod (22) is an obtuse angle.

2. The irrigation sprinkler according to claim 1, characterized in that: The invention also comprises a pipe laying mechanism (6), the pipe laying mechanism (6) comprising a return spring (61) and an assembly part (62) respectively arranged on the adjusting rod (21) and the fixing seat (33), the assembly part (62) having a through hole, the two ends of the return spring (61) respectively connected to the two through holes one by one to form a pipe laying pipeline, the hose (5) passes through the pipe laying pipeline and is connected to the water inlet end of the sprinkler head (1), and the middle part of the return spring (62) is fixedly connected to the hose (5).

3. The irrigation sprinkler according to claim 2, characterized in that: A circular arrangement groove (35) is also provided on the circumferential side of the bottom of the fixing seat (33), and the portion of the hose (5) located from the pipe laying pipeline to the water delivery pipeline (4) is coiled on the arrangement groove (35).

4. The irrigation sprinkler according to claim 3, characterized in that: A shielding block (36) is detachably mounted on the notch of the arrangement groove (35); the area of ​​the shielding block (36) is smaller than the area of ​​the notch of the arrangement groove (35); and a rubber pad is provided on the side close to the hose (5).

5. The irrigation sprinkler according to claim 4, characterized in that: The length from the connection point of the rotating rod (23) on the assembly groove (34) to one end for mounting the spray head (1) is shorter than the length from the connection point of the rotating rod (23) on the assembly groove (34) to one end for connecting the telescopic rod (22).

6. The irrigation sprinkler according to any one of claims 1 to 5, characterized in that: The angle α between the adjusting rod (21) and the telescopic rod (22) is defined as follows: Wherein, β is the length of the telescopic rod (22), γ is the distance between the connection point of the rotating rod (23) on the assembly groove (34) and the connection point between the rotating rod (23) and the telescopic rod (22), and μ is the distance between the connection point of the rotating rod (23) on the assembly groove (34) and the connection point of the telescopic rod (22) on the assembly groove (34).

7. A greenhouse automatic irrigation system, characterized in that: The invention comprises a plurality of irrigation nozzles as described in any one of claims 1 to 6 and controllers respectively used to control the working status of the plurality of irrigation nozzles, wherein the plurality of irrigation nozzles are arranged in the irrigation area of ​​the greenhouse, and every two of the irrigation nozzles form an irrigation group (7), and the edges of the two irrigation areas formed by two adjacent irrigation groups (7) intersect, and in the irrigation group (7), the effective irrigation area (72) of the irrigation nozzle covers the irrigation blind area (71) of another irrigation nozzle.

8. The greenhouse automatic irrigation system according to claim 7, characterized in that: A plurality of soil moisture detectors (8) connected to the controller are evenly arranged in the irrigation area of ​​the greenhouse.

9. The greenhouse automatic irrigation system according to claim 8, characterized in that: A drainage ditch (9) is also provided on the periphery of the irrigation area of ​​the greenhouse.

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