Water and fertilizer circulating device for agricultural soilless culture

Abstract

The utility model provides a water and fertilizer circulating device for agricultural soilless culture, which comprises a water storage tank communicated with a water outlet of an automatic water inlet pool, a first water inlet formed in the side wall of the water storage tank, a water separation tank arranged on the inner side of the water storage tank in a sliding manner, a second water inlet formed in the side wall of the water separation tank, and a plurality of water filtering holes formed in the bottom of the water separation tank, a containing frame used for containing nursery stocks to be cultivated is arranged in the water separation tank, a lifting assembly capable of automatically adjusting the height of the water separation tank is arranged between the water storage tank and the water separation tank, and the position of the first water inlet corresponds to the lifting track of the second water inlet. According to the automatic water-fertilizer adding device, overlapping and blocking of the first water inlet and the second water inlet can be achieved through the lifting assembly, adding of a water-fertilizer solution in the automatic water inlet pool and adding stopping operation after sufficient adding are achieved, automatic adding operation of the water-fertilizer solution is achieved, and operation is more convenient, efficient and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of soilless cultivation circulation equipment, in particular to a water and fertilizer circulation device for agricultural soilless cultivation. Background Art

[0002] Soilless culture is a method of cultivation that does not use natural soil but uses a nutrient solution containing essential elements for plant growth and development, namely water and fertilizer to provide nutrition. Its characteristic is that the soil environment is replaced by an artificially created crop root growth environment. It can not only meet the needs of crops for nutrients, water, air and other conditions, but also control and regulate these conditions to promote better growth of crops and obtain a better balance between nutritional growth and reproductive growth. Therefore, crops in soilless culture usually grow and develop well, with high yield and high quality. Soilless culture is free from the limitations of soil, which greatly expands the space for agricultural production and allows crops to be produced on barren land. The development prospects are very broad.

[0003] However, in the current soilless cultivation sprinkler irrigation, most of them rely on manual addition of water and fertilizer mixture on a regular basis. The operator needs to master the amount of water to be added based on experience. Too much or too little will affect the growth of crops. In addition, manual addition of water and fertilizer is laborious, and unnecessary manpower and time are wasted on the operation, resulting in low efficiency. Utility Model Content

[0004] In view of this, the utility model provides a water-fertilizer circulation device for agricultural soilless cultivation. The utility model can realize the overlapping and blocking of the first water inlet and the second water inlet through the lifting component to realize the addition of water-fertilizer solution in the automatic water inlet pool and stop the adding operation after adding a sufficient amount, thereby realizing the automatic addition operation of the water-fertilizer solution, solving the current soilless cultivation sprinkler irrigation, most of which rely on manual regular addition of water-fertilizer mixed liquid, requiring the operator to control the amount of water added based on experience, and too much or too little will affect the growth of crops, and the manual addition of water and fertilizer is laborious, and unnecessary manpower and time are wasted for operation. The operation is more convenient, efficient and labor-saving.

[0005] In order to solve the above technical problems, the utility model provides a water-fertilizer circulation device for agricultural soilless cultivation, comprising a water storage tank connected to the water outlet of an automatic water inlet pool, a first water inlet opened on the side wall of the water storage tank, a water barrier box slidably arranged on the inner side of the water storage tank, a second water inlet opened on the side wall of the water barrier box, a plurality of water filtering holes opened at the bottom of the water barrier box, a placement frame for placing seedlings to be cultivated is arranged in the water barrier box, and a lifting component capable of automatically adjusting the height of the water barrier box is arranged between the water storage tank and the water barrier box;

[0006] The lifting assembly includes a plurality of fixed cylinders arranged on the side wall of the water storage tank, each fixed cylinder is provided with a spring inside, each spring is provided with a pressure cylinder on the top, each pressure cylinder is provided with a pressure plate on the top, each pressure plate is provided with a pressure rod on the other end lower part, and the lower part of the pressure rod is fixedly arranged with the upper part of the placement frame;

[0007] The position of the first water inlet corresponds to the lifting trajectory of the second water inlet. The utility model can be realized through a lifting component. When the water-fertilizer solution in the water storage tank is sufficient, the buoyancy of the water-fertilizer solution on the placing frame is greater than the sum of the pressure of the placing frame on the spring and the self-restoring elastic force of the spring. At this time, the first water inlet and the second water inlet are misaligned up and down, thereby blocking the water inlet path and stopping the water inlet operation of the automatic water inlet pool; when the water-fertilizer solution in the water storage tank is insufficient, the pressure of the placing frame on the spring is greater than the spring's own restoring elastic force. At this time, the placing frame and the seedlings to be cultivated in the placing frame will pull the pressure rod downward to compress the spring under the action of their own gravity until the first water inlet and the second water inlet overlap and connect, thereby realizing the connection of the water inlet path. At this time, the water in the automatic water inlet pool will enter the second water inlet through the first water inlet, enter the water barrier box through the second water inlet, and empty into the water storage tank through the water filter hole at the bottom of the water barrier box until the water inlet is filled. The water-fertilizer solution in the water tank is sufficient to the buoyancy of the water-fertilizer solution on the placement frame being greater than the sum of the pressure of the placement frame on the spring and the self-restoring elastic force of the spring. At this time, the first water inlet and the second water inlet are displaced up and down, so that the water inlet is blocked and the water inlet operation of the automatic water inlet pool is stopped, thereby realizing the automatic filling and circulation operation of water and fertilizer, which is more time-saving, labor-saving and efficient. The first water inlet and the second water inlet are overlapped and blocked by the lifting component to realize the addition of the water-fertilizer solution in the automatic water inlet pool and the stopping of the adding operation after adding a sufficient amount, thereby realizing the automatic addition operation of the water-fertilizer solution. This solves the problem that most of the current soilless cultivation sprinkler irrigation relies on manual regular addition of water-fertilizer mixture, and the operator needs to master the amount of water added based on experience. Too much or too little water will affect the growth of crops, and manual addition of water and fertilizer is laborious, which requires unnecessary waste of manpower and time to operate. The operation is more convenient, efficient and labor-saving.

[0008] The placement frame includes a counterweight plate and a grid-shaped foam plate. The grid-shaped foam plate is located on the inner side of the watertight box, and the lower part of the counterweight plate is arranged on the upper part of the side wall of the watertight box. The lower part of the pressure rod is fixed together with the upper part of the counterweight plate. The utility model can realize the cultivation operation of separated and classified seedlings to be cultivated through the grid-shaped foam plate, and can realize the cultivation operation of multiple seedlings at the same time, and avoid the overlap of the roots between each other, which is convenient for the early cultivation of seedlings and the placement operation after the cultivation is completed. The grid-shaped foam plate has good air permeability, which is convenient for the growth of seedlings. The counterweight plate is convenient to increase the weight of the placement frame, so that when there is a lack of water in the water storage tank, the pressure rod and the pressure plate can be pulled under the action of the gravity of itself and the seedlings to compress the spring, and overcome the restoring elastic force of the spring itself, so as to realize the second water inlet on the watertight box to be pressed downward to overlap with the first water inlet, thereby realizing the automatic water inlet operation of the water fertilizer solution in the automatic water inlet pool, which is more convenient, efficient and labor-saving.

[0009] The height of the water outlet of the automatic water inlet pool is higher than that of the first water inlet, and the water outlet of the automatic water inlet pool is connected to the first water inlet through a stainless steel water pipe. There are four first water inlets, and a first water inlet is arranged at the geometric center of each side wall of the water storage tank. There are four second water inlets, and a second water inlet is arranged at the geometric center of each side wall of the water barrier box. The first water inlet and the second water inlet are the same size. The utility model can realize the water in the automatic water inlet pool from the high first water inlet to the low second water inlet through the design of the height difference between the automatic water inlet pool and the water storage tank. A five-way valve is arranged on the stainless steel water pipe, one of the outlets is connected to the water outlet of the automatic water inlet pool, and the other four outlets are respectively connected to a first water inlet, which greatly improves the automatic water filling speed of the water storage tank and is more convenient and efficient.

[0010] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0011] 1. The utility model can realize the overlapping and blocking of the first water inlet and the second water inlet through the lifting component to realize the addition of water-fertilizer solution in the automatic water inlet pool and stop the addition operation after adding a sufficient amount, thereby realizing the automatic addition operation of water-fertilizer solution, solving the current soilless cultivation sprinkler irrigation, most of which rely on manual regular addition of water-fertilizer mixed solution, requiring the operator to master the amount of water added based on experience, too much or too little will affect the growth of crops, and manual addition of water and fertilizer is laborious, and unnecessary manpower and time are wasted for operation. The operation is more convenient, efficient and labor-saving.

[0012] 2. The utility model can realize the cultivation operation of separated and classified seedlings to be cultivated through the grid-shaped foam board, and can realize the cultivation operation of multiple seedlings at the same time, and avoid the overlapping of the roots between each other, which is convenient for the early cultivation of seedlings and the taking and placing operations after the cultivation is completed. The grid-shaped foam board has good air permeability, which is convenient for the growth of seedlings. The counterweight plate is convenient for increasing the weight of the placement frame, so that when there is a lack of water in the water tank, the pressure rod and the pressure plate can be pulled under the action of the gravity of itself and the seedlings to compress the spring, and overcome the restoring elastic force of the spring itself, so as to press the second water inlet on the water-proof box downward to overlap with the first water inlet, thereby realizing the automatic water inlet operation of the water fertilizer solution in the water tank, which is more convenient, efficient and labor-saving.

[0013] 3. The utility model can realize that the water inside the automatic water inlet pool flows from the first water inlet at a high position to the second water inlet at a low position through the design of the height difference between the automatic water inlet pool and the water storage tank, and a five-way valve is arranged on the stainless steel water pipe, one of the outlets is connected with the water outlet of the automatic water inlet pool, and the other four outlets are respectively connected with one of the first water inlets, which greatly improves the automatic water filling speed of the water storage tank and is more convenient and efficient.

[0014] 4. The utility model can be realized by a lifting component. When the water-fertilizer solution in the water storage tank is sufficient, the buoyancy of the water-fertilizer solution on the placement frame is greater than the sum of the pressure of the placement frame on the spring and the self-restoring elastic force of the spring. At this time, the first water inlet and the second water inlet are dislocated up and down, so that the water inlet path is blocked and the water inlet operation of the automatic water inlet pool is stopped; when the water-fertilizer solution in the water storage tank is insufficient, the pressure of the placement frame on the spring is greater than the self-restoring elastic force of the spring. At this time, the placement frame and the seedlings to be cultivated in the placement frame will pull the pressure rod downward to compress the spring under the action of their own gravity until the first water inlet and the second water inlet are dislocated. The two water inlets are overlapped and connected to achieve connectivity of the water inlet path. At this time, water in the automatic water inlet pool will enter the second water inlet through the first water inlet, enter the water barrier box through the second water inlet, and empty into the water storage tank through the water filter hole at the bottom of the water barrier box until the water-fertilizer solution in the water storage tank is sufficient to make the buoyancy of the water-fertilizer solution on the placement frame greater than the sum of the pressure of the placement frame on the spring and the self-restoring elastic force of the spring. At this time, the first water inlet and the second water inlet are misplaced up and down, achieving blockage of the water inlet path and stopping the water inlet operation of the automatic water inlet pool, thereby realizing the automatic filling and circulation operation of water and fertilizer, which is more time-saving, labor-saving and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model agricultural soilless cultivation water and fertilizer circulation device;

[0016] Figure 2 It is a side view of the utility model agricultural soilless cultivation water and fertilizer circulation device;

[0017] Figure 3 This is a cross-sectional view of the utility model taken along line AA;

[0018] Figure 4 It is an enlarged view of point B of the present utility model.

[0019] Explanation of the reference numerals: 100, water storage tank; 101, first water inlet; 200, water-blocking box; 201, second water inlet; 202, water filter hole; 300, placement frame; 301, counterweight plate; 302, grid-like foam board; 400, lifting assembly; 401, fixing cylinder; 402, spring; 403, pressure cylinder; 404, pressure plate; 405, pressure rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figure 1-4 As shown: This embodiment provides a water-fertilizer circulation device for agricultural soilless cultivation, comprising a water storage tank 100 connected to a water outlet of an automatic water inlet pool, a first water inlet 101 provided on a side wall of the water storage tank 100, a water barrier 200 slidably provided on the inner side of the water storage tank 100, a second water inlet 201 provided on a side wall of the water barrier 200, a plurality of water filtering holes 202 provided at the bottom of the water barrier 200, a placement frame 300 for placing seedlings to be cultivated provided in the water barrier 200, and a lifting assembly 400 for automatically adjusting the height of the water barrier 200 provided between the water storage tank 100 and the water barrier 200;

[0022] According to one embodiment of the utility model, Figure 1-4 As shown, the lifting assembly 400 includes a plurality of fixed cylinders 401 arranged on the side wall of the water storage tank 100, each fixed cylinder 401 is provided with a spring 402 inside, each spring 402 is provided with a pressure cylinder 403 on the upper part, each pressure cylinder 403 is provided with a pressure plate 404 on the upper part, each pressure plate 404 is provided with a pressure rod 405 on the lower part of the other end, and the lower part of the pressure rod 405 is fixedly arranged with the upper part of the placement frame 300;

[0023] According to another embodiment of the present invention, Figure 1 and Figure 2As shown, the position of the first water inlet 101 corresponds to the lifting trajectory of the second water inlet 201. The utility model can be implemented by the lifting component 400. When the water fertilizer solution in the water storage tank 100 is sufficient, the buoyancy of the water fertilizer solution on the placement frame 300 is greater than the sum of the pressure of the placement frame 300 on the spring 402 and the self-restoring elastic force of the spring 402. At this time, the first water inlet 101 and the second water inlet 201 are misaligned up and down, realizing the blockage of the water inlet path and stopping the water inlet operation of the automatic water inlet pool; when the water fertilizer solution in the water storage tank 100 is insufficient, the water inlet 101 is automatically stopped. When the pressure of the placement frame 300 on the spring 402 is greater than the restoring elastic force of the spring 402 itself, at this time, the placement frame 300 and the seedlings to be cultivated in the placement frame 300 will pull the pressure rod 405 downward under the action of their own gravity to compress the spring 402 until the first water inlet 101 and the second water inlet 201 overlap and connect, thereby realizing the connection of the water inlet path. At this time, the water in the automatic water inlet pool will enter the second water inlet 201 through the first water inlet 101, and enter the water barrier box 200 through the second water inlet 201, and then enter the water barrier box 200 through the water barrier box 201. The water filter hole 202 at the bottom of the water tank 200 is emptied into the water storage tank 100 until the water fertilizer solution in the water storage tank 100 is sufficient to the buoyancy of the water fertilizer solution on the placement frame 300 is greater than the sum of the pressure of the placement frame 300 on the spring 402 and the self-restoring elastic force of the spring 402. At this time, the first water inlet 101 and the second water inlet 201 are misaligned up and down, realizing the blockage of the water inlet path, stopping the water inlet operation of the automatic water inlet pool, and thus realizing the automatic filling cycle operation of water fertilizer, which is more time-saving, labor-saving and efficient. The first water inlet 101 is realized by the lifting component 400. The overlap and blockage of the water inlet 101 and the second water inlet 201 realize the addition of the water-fertilizer solution in the automatic water inlet pool and the stopping of the addition after adding a sufficient amount, thereby realizing the automatic addition of the water-fertilizer solution, and solving the problem that most of the current soilless cultivation sprinkler irrigation relies on manual regular addition of water-fertilizer mixture, requiring the operator to control the amount of water added based on experience, as too much or too little will affect the growth of crops, and manual addition of water and fertilizer is laborious, requiring unnecessary waste of manpower and time to operate. The operation is more convenient, efficient and labor-saving.

[0024] According to another embodiment of the present invention, Figure 1 and Figure 3As shown, the placement frame 300 includes a counterweight plate 301 and a grid-like foam plate 302. The grid-like foam plate 302 is located on the inner side of the watertight box 200. The lower part of the counterweight plate 301 is arranged on the upper part of the side wall of the watertight box 200. The lower part of the pressure rod 405 is fixed together with the upper part of the counterweight plate 301. The utility model can realize the cultivation operation of separating and classifying the cultivated seedlings through the grid-like foam plate 302, and can realize the cultivation operation of multiple seedlings at the same time, and avoid the overlapping of the roots between each other, which is convenient for the early cultivation of the seedlings and the placement and removal operations after the cultivation is completed. The grid foam board 302 has good air permeability, which is convenient for the growth of seedlings. The counterweight plate 301 is used to increase the weight of the placement frame 300, so that when there is a lack of water in the water tank 100, the pressure rod 405 and the pressure plate 404 can be pulled under the action of the gravity of itself and the seedlings to compress the spring 402, and overcome the restoring elastic force of the spring 402 itself, so as to press the second water inlet 201 on the water-blocking box 200 downward to overlap with the first water inlet 101, thereby realizing the automatic water inlet operation of the water fertilizer solution in the water tank, which is more convenient, efficient and labor-saving.

[0025] According to another embodiment of the present invention, Figure 1 and Figure 4 As shown, the height of the water outlet of the automatic water inlet pool is higher than the height of the first water inlet 101, and the water outlet of the automatic water inlet pool is connected to the first water inlet 101 through a stainless steel water pipe. There are four first water inlets 101, and a first water inlet 101 is arranged at the geometric center of each side wall of the water storage tank 100. There are four second water inlets 201, and a second water inlet 201 is arranged at the geometric center of each side wall of the water barrier box 200. The first water inlet 101 and the second water inlet 201 are the same size. The utility model can realize the water in the automatic water inlet pool from the high first water inlet 101 to the low second water inlet 201 through the design of the height difference between the automatic water inlet pool and the water storage tank 100, and a five-way valve is arranged on the stainless steel water pipe, one of the outlets is connected to the water outlet of the automatic water inlet pool, and the other four outlets are respectively connected to a first water inlet 101, which greatly improves the automatic water filling speed of the water storage tank 100 and is more convenient and efficient.

[0026] The use of the utility model:

[0027] First of all, it should be made clear that the water-fertilizer circulation device involved in the utility model is mainly used for automatic water and fertilizer filling operations in the process of cultivating seedlings and flowers. The utility model takes the cultivation of seedlings for agricultural production as an example to explain its method of use in detail. When the seedlings need to be cultivated, the counterweight plate 301 of the placement rack on which the seedlings are placed is first fixed together with the upper part of the watertight box 200 (connected together by bolts). At this time, the gravity of the seedlings, foam placement plate and counterweight plate 301 will pull the pressure rod 405 and the pressure plate 404 to compress the spring 402, and overcome the restoring elastic force of the spring 402 itself, so as to press the second water inlet 201 on the watertight box 200 downward to be aligned with the first inlet The water inlets 101 overlap with each other, thereby realizing the automatic water inlet operation of the water-fertilizer solution in the water inlet pool, until the water-fertilizer solution in the water storage tank 100 is sufficient, the buoyancy of the water-fertilizer solution on the placement frame 300 is greater than the sum of the pressure of the placement frame 300 on the spring 402 and the self-restoring elastic force of the spring 402. At this time, the first water inlet 101 and the second water inlet 201 are misaligned up and down, realizing the blockage of the water inlet path and stopping the automatic water inlet operation of the water inlet pool; when the water-fertilizer solution in the water storage tank 100 is insufficient, the pressure of the placement frame 300 on the spring 402 is greater than the self-restoring elastic force of the spring 402. At this time, the placement frame 300 and the seedlings to be cultivated in the placement frame 300 will pull the pressure rod under the action of their own gravity 405 compresses the spring 402 downward until the first water inlet 101 and the second water inlet 201 overlap and connect to each other, thereby realizing the connection of the water inlet path. At this time, the water in the automatic water inlet pool will enter the second water inlet 201 through the first water inlet 101, enter the water-blocking box 200 through the second water inlet 201, and empty into the water storage tank 100 through the water filter hole 202 at the bottom of the water-blocking box 200, until the water-fertilizer solution in the water storage tank 100 is sufficient to make the buoyancy of the water-fertilizer solution on the placement frame 300 greater than the sum of the pressure of the placement frame 300 on the spring 402 and the self-restoring elastic force of the spring 402. At this time, the first water inlet 101 and the second water inlet 201 are misaligned up and down, thereby realizing the blockage of the water inlet path, stopping. The utility model can realize the overlapping and blocking of the first water inlet 101 and the second water inlet 201 through the lifting component 400 to realize the addition of the water-fertilizer solution in the automatic water inlet pool and the stopping of the adding operation after adding a sufficient amount, thereby realizing the automatic addition operation of the water-fertilizer solution, and solving the current soilless cultivation sprinkler irrigation, most of which rely on manual regular addition of water-fertilizer mixture, which requires the operator to master the amount of water added based on experience, and too much or too little will affect the growth of crops, and the manual addition of water and fertilizer is laborious, and it is necessary to waste unnecessary manpower and time to operate. The operation is more convenient, efficient and labor-saving.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A water-fertilizer circulation device for agricultural soilless cultivation, comprising a water storage tank (100) connected to a water outlet of an automatic water inlet pool, characterized in that: A first water inlet (101) is provided on the side wall of the water storage tank (100); a water barrier box (200) is slidably provided inside the water storage tank (100); a second water inlet (201) is provided on the side wall of the water barrier box (200); a plurality of water filtering holes (202) are provided at the bottom of the water barrier box (200); a placement frame (300) is provided inside the water barrier box (200) for placing seedlings to be cultivated; and a lifting component (400) is provided between the water storage tank (100) and the water barrier box (200) for automatically adjusting the height of the water barrier box (200); The lifting assembly (400) comprises a plurality of fixed cylinders (401) arranged on the side wall of the water storage tank (100), each of the fixed cylinders (401) is provided with a spring (402) inside, each of the springs (402) is provided with a pressure cylinder (403) on the top, each of the pressure cylinders (403) is provided with a pressure plate (404) on the top, each of the pressure plates (404) is provided with a pressure rod (405) on the bottom of the other end, and the bottom of the pressure rod (405) is fixedly arranged with the top of the placement frame (300); The position of the first water inlet (101) corresponds to the lifting trajectory of the second water inlet (201).

2. The water-fertilizer circulation device for agricultural soilless cultivation according to claim 1, characterized in that: The placement frame (300) includes a counterweight plate (301) and a grid-shaped foam plate (302), wherein the grid-shaped foam plate (302) is located on the inner side of the watertight box (200), and the lower part of the counterweight plate (301) is arranged on the upper part of the side wall of the watertight box (200).

3. The water-fertilizer circulation device for agricultural soilless cultivation as claimed in claim 2, characterized in that: The lower part of the pressure rod (405) is fixedly arranged with the upper part of the counterweight plate (301).

4. The water-fertilizer circulation device for agricultural soilless cultivation as claimed in claim 3, characterized in that: There are four first water inlets (101), and a first water inlet (101) is arranged at the geometric center of each side wall of the water storage tank (100).

5. The water-fertilizer circulation device for agricultural soilless cultivation as claimed in claim 4, characterized in that: There are four second water inlets (201), and a second water inlet (201) is arranged at the geometric center of each side wall of the water barrier box (200).

6. The water-fertilizer circulation device for agricultural soilless cultivation as claimed in claim 5, characterized in that: The first water inlet (101) and the second water inlet (201) are of the same size.

7. The water-fertilizer circulation device for agricultural soilless cultivation according to claim 6, characterized in that: The height of the water outlet of the automatic water inlet pool is higher than the height of the first water inlet (101), and the water outlet of the automatic water inlet pool is connected to the first water inlet (101) via a stainless steel water pipe.

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