Water and fertilizer spraying device in greenhouse

By using a combination of grid diversion and filter nets in the water and fertilizer spraying device in the greenhouse, the impact damage and impurity blockage of water pump pressure on the filter nets is solved, and uniform spraying and adaptive spraying of water and fertilizer are achieved.

CN223053456UActive Publication Date: 2025-07-04沂水县农业技术推广中心
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Patent Information

Application Number
CN202422320838.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-07-04
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

When using river water in the existing greenhouse, the pressure of the water pump will cause impact damage to the filter net, and impurities in the river water will easily clog the spray head.

Method used

A grating net is used to block large impurities in the water inlet top tank, and the impact of the water on the filter net is slowed down through diversion. A filter net is installed in the filter tank to avoid impurities blockage. Combined with a booster pump, the water pressure is increased to ensure the spraying effect.

Benefits of technology

Effectively protect the filter net, avoid blockage, ensure uniform spraying of water and fertilizer, and adapt to the spraying needs of the crop growth cycle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223053456U_ABST
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Abstract

The utility model relates to the technical field of agricultural spraying, in particular to a water and fertilizer spraying device in a greenhouse. Comprising a water inlet assembly, a dissolving assembly, a flow dividing assembly and a spraying assembly, the water inlet assembly comprises a water inlet top tank and a water inlet bottom tank, the dissolving assembly comprises a dissolving tank and a motor, the flow dividing assembly comprises a first flow dividing pipe and a second flow dividing pipe, the first flow dividing pipe is connected with a flow meter, the second flow dividing pipe is connected with an electromagnetic valve, and the first flow dividing pipe is provided with a booster pump. A supporting frame is arranged on the outer ring of the transverse pipe, and the lower end of the transverse pipe is connected with a spraying head. Water flows into the transverse pipe through the first flow dividing pipe and the second flow dividing pipe, then the water flows in the transverse pipe and flows into the longitudinal pipe, the transverse pipe and the longitudinal pipe are connected with the mounting face through the supporting frame, the flow of the spraying system is monitored through the arrangement of the flow meter, and then according to the growth cycle of crops, the flow of the spraying system is monitored. And proper spraying is selected.
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Description

Technical Field

[0001] The utility model relates to the technical field of agricultural spraying, in particular to a water and fertilizer spraying device in a greenhouse. Background Technique

[0002] A greenhouse is a facility used to protect and promote plant growth, and is usually used in modern agriculture and horticulture. By controlling environmental conditions such as temperature, humidity, light, and ventilation, the greenhouse provides a suitable growth environment for plants.

[0003] In greenhouse cultivation, water and fertilizer management is crucial for the growth of crops. Through water and fertilizer spraying, an appropriate amount of water can be provided for plants to keep the soil humidity suitable.

[0004] When the existing water and fertilizer spraying devices in the greenhouse are in use, groundwater, river water, or a reservoir, etc. are often used as the water source for the spraying system. When using river water as the water source for spraying work, the impurities in the river water will clog the spray heads during long-term spraying. Some spraying devices also install filters to filter impurities. However, due to the pressure of the water body pumped by the water pump, an impact force will be exerted on the filter, and the long-term impact force will damage the filter. Content of the Utility Model

[0005] Aiming at the above problems, the purpose of the present utility model is to provide a water and fertilizer spraying device in a greenhouse, which solves the problem that the spraying device installs a filter to filter impurities, but due to the pressure of the water body pumped by the water pump, an impact force will be exerted on the filter, and the long-term impact force will damage the filter. When the water body falls in the water inlet top tank and encounters the grid, the grid blocks the larger impurities in the water body, and at the same time causes the water body to be shunted. The shunting of the water body is used to slow down the impact force of the water body on the filter, thereby avoiding the damage to the filter caused by the impact force.

[0006] To achieve the above purpose, the technical solution adopted by the present utility model is: a water and fertilizer spraying device in a greenhouse, including a water inlet assembly, a dissolution assembly, a shunting assembly, and a spraying assembly. The water inlet assembly includes a water inlet top tank and a water inlet bottom tank. The dissolution assembly includes a dissolution tank and a motor. The shunting assembly includes a shunting pipe 1 and a shunting pipe 2. The spraying assembly includes a bent pipe, a transverse pipe, and a longitudinal pipe. A diversion tank is provided at the lower end of the water inlet top tank. A filter tank is provided below the diversion tank away from the water inlet top tank. A flange is connected to the outer wall of the top of the water inlet bottom tank. A stirring shaft is arranged inside the dissolution tank. Stirring blades are connected to the outer circle of the stirring shaft. A water delivery pipe is arranged inside the inner wall of the top of the dissolution tank. The shunting pipe 1 is connected with a flow meter. The shunting pipe 2 is connected with a solenoid valve. A booster pump is arranged on the shunting pipe 1. A support frame is arranged on the outer circle of the transverse pipe. A spray head is connected to the lower end of the transverse pipe.

[0007] The beneficial effects of the present utility model are as follows: When in use, start the pump body connected to the water inlet pipe, and the water body is pumped into the water inlet top tank through the water inlet pipe. Then, when the water body falls in the water inlet top tank, it encounters the obstruction of the grid. The grid blocks the larger impurities in the water body and at the same time causes the water body to be diverted. The diversion of the water body is used to slow down the impact force of the water body on the filter screen, thereby avoiding damage to the filter screen caused by the impact force.

[0008] In order to realize the assembly connection of the water inlet top tank, the water inlet bottom tank, the diversion tank, and the filtration tank:

[0009] As a further improvement of the above technical solution: The outer diameters of the water inlet top tank, the water inlet bottom tank, the diversion tank, and the filtration tank are the same. A flange is connected to the outer wall of the lower part of the water inlet top tank, and flanges are connected to the outer walls of the upper and lower ends of the diversion tank and the filtration tank.

[0010] The beneficial effect of this improvement is: Through the setting of the flange, it is used to assemble and connect the water inlet top tank and the diversion tank, and the filtration tank and the water inlet bottom tank. Then, the diversion tank and the filtration tank are assembled and connected, thereby realizing the assembly connection of the water inlet top tank, the water inlet bottom tank, the diversion tank, and the filtration tank.

[0011] In order to slow down the impact force of the water body on the filter screen through the diversion of the water body, thereby avoiding damage to the filter screen caused by the impact force:

[0012] As a further improvement of the above technical solution: The grid is welded to the inner wall of the diversion tank. A water inlet pipe is connected to the top of the water inlet top tank, and the end of the water inlet pipe far from the water inlet top tank is connected to an external water source.

[0013] The beneficial effect of this improvement is: When in use, start the pump body connected to the water inlet pipe, and the water body is pumped into the water inlet top tank through the water inlet pipe. Then, when the water body falls in the water inlet top tank, it encounters the obstruction of the grid. The grid blocks the larger impurities in the water body and at the same time causes the water body to be diverted. The diversion of the water body is used to slow down the impact force of the water body on the filter screen, thereby avoiding damage to the filter screen caused by the impact force.

[0014] In order to prevent the impurities in the water body from blocking the sprinkler head when pumping water from the river:

[0015] As a further improvement of the above technical solution: The filter screen is connected to the inside of the filtration tank by bolts, and the filtration tank is connected to the diversion tank and the water inlet bottom tank through flanges at the same time.

[0016] The beneficial effects of this improvement are as follows: The water body diverted by the grid continues to fall, and then the filter screen filters the falling water body. The water body that has completed filtration is stored in the bottom water inlet tank. By filtering the water body, it is used to prevent impurities in the water body from clogging the sprinkler head when pumping water from the river, thereby ensuring the spraying effect.

[0017] For the motor to operate and drive the stirring blades to rotate through the stirring shaft:

[0018] As a further improvement of the above technical solution: The motor is installed on the top of the dissolution tank and is electrically connected to the operation panel. The top of the stirring shaft penetrates the upper wall of the dissolution tank and extends to be connected to the output end of the motor through a coupling. The lower end of the stirring shaft away from the motor is rotatably connected to the bottom wall of the dissolution tank through a bearing.

[0019] The beneficial effects of this improvement are as follows: Start the operation of the motor. The motor operates and drives the stirring blades to rotate through the stirring shaft, thereby realizing the dissolution and mixing of the fertilizer and water in the dissolution tank.

[0020] For the water body in the bottom water inlet tank to be pumped into the dissolution tank through the water delivery pipe and dissolved and mixed with the fertilizer in the dissolution tank:

[0021] As a further improvement of the above technical solution: One end of the water delivery pipe away from the dissolution tank penetrates the wall of the bottom water inlet tank and extends to the inside of the bottom water inlet tank. The top of the dissolution tank is connected with a feed inlet, and the water delivery pipe is connected with a water pump.

[0022] The beneficial effects of this improvement are as follows: When fertilizer needs to be used for spraying, add the fertilizer into the dissolution tank through the feed inlet, and then start the water pump connected to the water delivery pipe. The water body in the bottom water inlet tank is pumped into the dissolution tank through the water delivery pipe and dissolved and mixed with the fertilizer in the dissolution tank, and then the dissolved fertilizer is evenly applied to the crops through the sprinkler head to ensure the uniform distribution of nutrients.

[0023] For increasing water pressure to ensure the spraying effect:

[0024] As a further improvement of the above technical solution: One end of the first diversion pipe is communicated with the dissolution tank, and the other end of the first diversion pipe away from the dissolution tank is communicated with the transverse pipe. One end of the second diversion pipe is communicated with the dissolution tank, and the other end of the second diversion pipe away from the dissolution tank is communicated with the transverse pipe.

[0025] The beneficial effects of this improvement are as follows: Through the setting of the first diversion pipe and the second diversion pipe, it is used to divert the water body in the dissolution tank so that it can be selected according to needs. Through the setting of the booster pump, it is used to increase water pressure to ensure the spraying effect.

[0026] For monitoring the flow rate of the spraying system, and further realizing the selection of a suitable spraying according to the growth cycle of crops:

[0027] As a further improvement of the above technical solution: there are four elbows in total, two of the transverse pipes and two of the longitudinal pipes, and both ends of the elbows are connected to the transverse pipes and longitudinal pipes through flanges at the same time.

[0028] The beneficial effect of this improvement is that water flows into the transverse pipe through the first shunt pipe and the second shunt pipe, and then the water flows in the transverse pipe and flows to the longitudinal pipe. The support frame is used to connect the transverse pipe and the longitudinal pipe to the installation surface. Through the setting of the flow meter, the flow rate of the spraying system is monitored, and further, a suitable spraying is selected according to the growth cycle of the crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view structural schematic diagram of the present utility model.

[0030] Figure 2 It is a sectional view structural schematic diagram of the water inlet bottom tank of the present utility model.

[0031] Figure 3 It is a three-dimensional structural schematic diagram of the diversion tank of the present utility model.

[0032] Figure 4 It is a sectional view structural schematic diagram of the dissolution tank of the present utility model.

[0033] Figure 5 It is a structural schematic diagram of the transverse pipe of the present utility model.

[0034] In the figure: 1. Water inlet assembly; 11. Water inlet top tank; 12. Water inlet bottom tank; 13. Diversion tank; 14. Grille; 15. Filter tank; 16. Filter screen; 17. Flange; 18. Water inlet pipe; 2. Dissolution assembly; 21. Dissolution tank; 22. Feed inlet; 23. Motor; 24. Stirring shaft; 25. Stirring blade; 26. Water delivery pipe; 27. Water pump; 3. Shunt assembly; 31. First shunt pipe; 32. Second shunt pipe; 33. Flow meter; 34. Solenoid valve; 35. Booster pump; 4. Spraying assembly; 41. Elbow; 42. Transverse pipe; 43. Longitudinal pipe; 44. Support frame; 45. Spraying head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.

[0036] Such as Figures 1-5As shown in the figure, a water and fertilizer spraying device in a greenhouse includes a water inlet component 1, a dissolution component 2, a flow splitting component 3, and a spraying component 4. The water inlet component 1 includes a water inlet top tank 11 and a water inlet bottom tank 12. The dissolution component 2 includes a dissolution tank 21 and a motor 23. The flow splitting component 3 includes a first flow splitting pipe 31 and a second flow splitting pipe 32. The spraying component 4 includes a bent pipe 41, a transverse pipe 42, and a longitudinal pipe 43. A diversion tank 13 is provided at the lower end of the water inlet top tank 11. A filter tank 15 is provided below the diversion tank 13 away from the water inlet top tank 11. The outer wall of the top of the water inlet bottom tank 12 is connected with a flange 17. A stirring shaft 24 is arranged inside the dissolution tank 21. Stirring blades 25 are connected to the outer ring of the stirring shaft 24. A water delivery pipe 26 is arranged inside the inner wall of the top of the dissolution tank 21. The first flow splitting pipe 31 is connected with a flow meter 33. The second flow splitting pipe 32 is connected with a solenoid valve 34. A booster pump 35 is arranged on the first flow splitting pipe 31. A support frame 44 is arranged on the outer ring of the transverse pipe 42. Spraying heads 45 are connected to the lower end of the transverse pipe 42. The outer diameters of the outer rings of the water inlet top tank 11, the water inlet bottom tank 12, the diversion tank 13, and the filter tank 15 are the same. The outer wall of the lower part of the water inlet top tank 11 is connected with a flange 17. The outer walls of the upper and lower ends of the diversion tank 13 and the filter tank 15 are both connected with a flange 17. Through the setting of the flange 17, the water inlet top tank 11 and the diversion tank 13 are assembled and connected, the filter tank 15 and the water inlet bottom tank 12 are assembled and connected, and then the diversion tank 13 and the filter tank 15 are assembled and connected, so as to realize the assembly connection of the water inlet top tank 11, the water inlet bottom tank 12, the diversion tank 13, and the filter tank 15. A grid screen 14 is welded on the inner wall of the diversion tank 13. A water inlet pipe 18 is connected to the top of the water inlet top tank 11. One end of the water inlet pipe 18 away from the water inlet top tank 11 is connected with an external water source. When in use, the pump body connected to the water inlet pipe 18 is started, and the water body is pumped into the water inlet top tank 11 through the water inlet pipe 18. Then, when the water body falls in the water inlet top tank 11, it is blocked by the grid screen 14. The grid screen 14 blocks larger impurities in the water body and at the same time causes the water body to be split. By splitting the water body, the impact force of the water body on the filter screen 16 is reduced, so as to avoid damage to the filter screen 16 caused by the impact force. The filter screen 16 is connected to the inside of the filter tank 15 by bolts. The filter tank 15 is connected to both the diversion tank 13 and the water inlet bottom tank 12 through the flange 17.The water body diverted by the grid 14 continues to fall, and then the filter screen 16 filters the falling water body. The filtered water body is stored in the inlet bottom tank 12. By filtering the water body, it is used to prevent impurities in the water body from clogging the sprinkler head 45 when pumping water from the river, thereby ensuring the sprinkling effect. The motor 23 is installed on the top of the dissolution tank 21 and is electrically connected to the operation panel. The top of the stirring shaft 24 penetrates the upper wall of the dissolution tank 21 and extends to be connected to the output end of the motor 23 through a coupling. The lower end of the stirring shaft 24 away from the motor 23 is rotatably connected to the bottom wall of the dissolution tank 21 through a bearing. Start the operation of the motor 23. The motor 23 works and drives the stirring blades 25 to rotate through the stirring shaft 24, thereby realizing the dissolution and mixing of the fertilizer and water in the dissolution tank 21. One end of the water delivery pipe 26 away from the dissolution tank 21 penetrates the wall of the inlet bottom tank 12 and extends to the inside of the inlet bottom tank 12. The top of the dissolution tank 21 is connected with a feed port 22, and the water delivery pipe 26 is connected with a water pump 27. When it is necessary to use fertilizer for spraying, the fertilizer is added into the dissolution tank 21 through the feed port 22, and then the water pump 27 connected to the water delivery pipe 26 is started. The water body in the inlet bottom tank 12 is pumped into the dissolution tank 21 through the water delivery pipe 26 and is dissolved and mixed with the fertilizer in the dissolution tank 21. Then the dissolved fertilizer is evenly applied to the crops through the sprinkler head 45 to ensure the uniform distribution of nutrients. One end of the first diversion pipe 31 is communicated with the dissolution tank 21, and the other end of the first diversion pipe 31 away from the dissolution tank 21 is communicated with the transverse pipe 42. One end of the second diversion pipe 32 is communicated with the dissolution tank 21, and the other end of the second diversion pipe 32 away from the dissolution tank 21 is communicated with the transverse pipe 42. Through the arrangement of the first diversion pipe 31 and the second diversion pipe 32, it is used to divert the water body in the dissolution tank 21 so that it can be selected according to needs. Through the arrangement of the booster pump 35, it is used to increase the water pressure to ensure the sprinkling effect. There are four elbow pipes 41 in total, and there are two transverse pipes 42 and two longitudinal pipes 43 respectively. Both ends of the elbow pipe 41 are connected to the transverse pipe 42 and the longitudinal pipe 43 through flanges 17 at the same time. The water body flows into the transverse pipe 42 through the first diversion pipe 31 and the second diversion pipe 32. Then the water body flows in the transverse pipe 42 and flows to the longitudinal pipe 43. The support frame 44 is used to connect the transverse pipe 42 and the longitudinal pipe 43 to the installation surface. Through the arrangement of the flow meter 33, it is used to monitor the flow rate of the spraying system, and then realize the selection of appropriate spraying according to the growth cycle of the crops.

[0037] The working principle of the present utility model is as follows: During use, through the setting of the flange 17, it is used to assemble and connect the water inlet top tank 11 and the diversion tank 13, assemble and connect the filtration tank 15 and the water inlet bottom tank 12, and then assemble and connect the diversion tank 13 and the filtration tank 15, thereby realizing the assembly connection of the water inlet top tank 11, the water inlet bottom tank 12, the diversion tank 13, and the filtration tank 15. Start the pump body connected to the water inlet pipe 18, and the water body is pumped into the water inlet top tank 11 through the water inlet pipe 18. Then, when the water body falls in the water inlet top tank 11, it encounters the obstruction of the grid 14. The grid 14 blocks the larger impurities in the water body and at the same time causes the water body to be diverted. By diverting the water body, it is used to slow down the impact force of the water body on the filter screen 16, thereby avoiding damage to the filter screen 16 caused by the impact force. The water body diverted by the grid 14 continues to fall, and then the filter screen 16 filters the falling water body. The filtered water body is stored in the water inlet bottom tank 12. By filtering the water body, it is used to prevent the impurities in the water body from blocking the spray head 45 when pumping water from the river, thereby ensuring the spraying effect. When it is necessary to spray fertilizer, the fertilizer is added into the dissolution tank 21 through the feed port 22. Then, start the water pump 27 connected to the water delivery pipe 26. The water body in the water inlet bottom tank 12 is pumped into the dissolution tank 21 through the water delivery pipe 26. Start the operation of the motor 23. The motor 23 works and drives the stirring blades 25 to rotate through the stirring shaft 24, thereby realizing the dissolution and mixing of the fertilizer and water in the dissolution tank 21. Then, the dissolved fertilizer is evenly applied to the crops through the spray head 45 to ensure the uniform distribution of nutrients. Through the setting of the diversion pipe 31 and the diversion pipe 32, it is used to divert the water body in the dissolution tank 21 so that it can be selected according to needs. Through the setting of the booster pump 35, it is used to increase the water pressure to ensure the spraying effect. The water body flows into the transverse pipe 42 through the diversion pipe 31 and the diversion pipe 32. Then, the water body flows in the transverse pipe 42 and flows to the longitudinal pipe 43. The support frame 44 is used to connect the transverse pipe 42 and the longitudinal pipe 43 to the installation surface. Through the setting of the flow meter 33, it is used to monitor the flow rate of the spraying system, thereby realizing the selection of appropriate spraying according to the growth cycle of the crops.

[0038] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] In this text, specific examples are used to illustrate the principle and implementation mode of the present utility model. The description of the above examples is only for helping to understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements, refinements or changes can also be made, or the above technical features can be combined in an appropriate way; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. A water and fertilizer spraying device in a greenhouse, comprising a water inlet component (1), a dissolution component (2), a shunt component (3), and a spraying component (4). The water inlet component (1) includes a water inlet top tank (11) and a water inlet bottom tank (12). The dissolution component (2) includes a dissolution tank (21) and a motor (23). The shunt component (3) includes a first shunt pipe (31) and a second shunt pipe (32). The spraying component (4) includes an elbow pipe (41), a transverse pipe (42), and a longitudinal pipe (43), and is characterized in that: A diversion tank (13) is provided at the lower end of the water inlet top tank (11). A filter tank (15) is provided below the diversion tank (13) away from the water inlet top tank (11). A flange (17) is connected to the outer wall of the top of the water inlet bottom tank (12). A stirring shaft (24) is provided inside the dissolving tank (21). Stirring blades (25) are connected to the outer ring of the stirring shaft (24). A water delivery pipe (26) is provided inside the inner wall of the top of the dissolving tank (21). The first shunt pipe (31) is connected to a flow meter (33). The second shunt pipe (32) is connected to a solenoid valve (34). A booster pump (35) is provided on the first shunt pipe (31). A support frame (44) is provided on the outer ring of the horizontal pipe (42). A spray head (45) is connected to the lower end of the horizontal pipe (42).

2. The water and fertilizer spraying device in a greenhouse according to claim 1, characterized in that: The outer diameters of the water inlet top tank (11), the water inlet bottom tank (12), the diversion tank (13), and the filter tank (15) are the same. A flange (17) is connected to the outer wall of the lower part of the water inlet top tank (11). Flanges (17) are connected to the outer walls of the upper and lower ends of the diversion tank (13) and the filter tank (15).

3. The water and fertilizer spraying device in the greenhouse according to claim 1, characterized in that: A grille mesh (14) is welded to the inner wall of the diversion tank (13). A water inlet pipe (18) is connected to the top of the water inlet top tank (11). One end of the water inlet pipe (18) away from the water inlet top tank (11) is connected to an external water source.

4. The water and fertilizer spraying device in the greenhouse according to claim 1, characterized in that: A filter screen (16) is connected inside the filter tank (15) by bolts. The filter tank (15) is connected to the diversion tank (13) and the water inlet bottom tank (12) through flanges (17).

5. The water and fertilizer spraying device in the greenhouse according to claim 1, characterized in that: The motor (23) is installed on the top of the dissolving tank (21) and is electrically connected to the operation panel. The top of the stirring shaft (24) penetrates through the upper wall of the dissolving tank (21) and extends to be connected to the output end of the motor (23) through a coupling. The lower end of the stirring shaft (24) away from the motor (23) is rotatably connected to the bottom wall of the dissolving tank (21) through a bearing.

6. The water and fertilizer spraying device in the greenhouse according to claim 1, characterized in that: One end of the water delivery pipe (26) away from the dissolving tank (21) penetrates through the wall of the water inlet bottom tank (12) and extends to the inside of the water inlet bottom tank (12). A feed inlet (22) is connected to the top of the dissolving tank (21). A water pump (27) is connected to the water delivery pipe (26).

7. A water and fertilizer spraying device in a greenhouse according to claim 1, characterized in that: One end of the first shunt pipe (31) is communicated with the dissolving tank (21). The end of the first shunt pipe (31) away from the dissolving tank (21) is communicated with the horizontal pipe (42). One end of the second shunt pipe (32) is communicated with the dissolving tank (21). The end of the second shunt pipe (32) away from the dissolving tank (21) is communicated with the horizontal pipe (42).

8. The water and fertilizer spraying device in the greenhouse according to claim 1, characterized in that: There are four elbow pipes (41). There are two horizontal pipes (42) and two vertical pipes (43). Both ends of the elbow pipes (41) are connected to the horizontal pipes (42) and the vertical pipes (43) through flanges (17).