Tomato hydroponic nutrient solution preparation device and preparation method thereof

Abstract

The application discloses a kind of tomato hydroponic nutrient solution preparation device and its preparation method, belong to the field of hydroponic nutrient solution configuration.A kind of tomato hydroponic nutrient solution preparation device, comprising: configuration box, further comprising: configuration cavity, open in the configuration box;Feed inlet, open in the top of the configuration box, the feed inlet is threadedly sealed with sealing cover;Shaft, sealing rotation in configuration box;Motor, fixedly arranged on the top of the configuration box, and the output end of the motor is fixedly connected with the one end of shaft;Discharge port, arranged at the bottom of the configuration box;Two groups of first connecting components, symmetrically fixedly arranged on the shaft;The powder particles in the nutrient solution are ground by the grinding column in the application, so that they are quickly fused into the nutrient solution, effectively improving the rate and quality of nutrient solution configuration.

Description

Technical Field

[0001] This invention relates to the field of hydroponic nutrient solution preparation technology, and in particular to a tomato hydroponic nutrient solution preparation device and preparation method. Background Technology

[0002] Hydroponics refers to soilless cultivation. In tomato cultivation, hydroponics is sometimes used. In hydroponics, nutrient solution is used to cultivate the tomatoes and provide them with the necessary nutrients. In the production of nutrient solution, the stock solution and powdered or granular nutrients need to be mixed together. When mixing them, a mixing device is needed to mix the nutrient solution.

[0003] Currently, when preparing hydroponic nutrient solution for tomatoes, manual mixing is required, which may result in uneven mixing.

[0004] In the prior art, patent publication number CN214915316U, published on 2021-11-30, discloses a device for preparing watermelon nutrient solution, including a placement cylinder with a groove at its upper end; a top cover on the upper part of the placement cylinder, and a sealing block at the lower part of the top cover, the sealing block being correspondingly disposed within the groove; a lifting part on the outer wall of the placement cylinder, the lifting part including a mounting plate and an electric telescopic rod, the output end of the electric telescopic rod being connected to the top cover; and a stirring part on the upper part of the top cover, the stirring part including a rotating shaft, a first stirring plate, a second stirring plate, a support plate, a fixing sleeve, and a bearing, the first stirring plate and the second stirring plate being sequentially disposed outside the rotating shaft. This invention provides a device for preparing watermelon nutrient solution, which facilitates the preparation operation of the nutrient solution, ensures uniform stirring, and improves the efficiency and quality of nutrient solution preparation.

[0005] In the aforementioned patent, the rotation and stirring of the first stirring plate 42 and the second stirring plate 43 effectively solves the problems of uneven and low efficiency in the current manual preparation. However, when preparing the nutrient solution, the mixing effect of powdered and granular raw materials is relatively slow, which may affect the efficiency and quality of the nutrient solution preparation. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a tomato hydroponic nutrient solution preparation device that can overcome or at least partially solve the above problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A tomato hydroponic nutrient solution preparation device includes: a preparation box, further including: a preparation chamber located inside the preparation box; a feeding port located on the top of the preparation box, the feeding port being threadedly sealed with a sealing cap; a rotating shaft rotatably disposed inside the preparation box; a motor fixedly disposed on the top of the preparation box, the output end of the motor being fixedly connected to one end of the rotating shaft; a discharge port located at the bottom of the preparation box; two sets of first connecting components symmetrically fixedly disposed on the rotating shaft; a grinding column rotatably disposed between two adjacent first connecting components, the grinding column being in contact with the side wall of the preparation chamber; and multiple mixing components fixedly disposed on the rotating shaft.

[0009] To facilitate the connection between the rotating shaft and the grinding column, preferably, the first connecting assembly includes a first sleeve symmetrically fixed on the rotating shaft, a support slide rod slidably disposed inside the first sleeve, a spring fixedly connected between the support slide rod and the bottom of the first sleeve, and the grinding column rotatably disposed between the two support slide rods.

[0010] To prevent raw material powder particles from adhering to the grinding column, preferably, a connecting rod is fixedly connected between the two supporting slide rods. The connecting rod is located between the grinding column and the rotating shaft, and is adjacent to the grinding column. An air inlet pipe communicating with the outside of the preparation box is provided inside the rotating shaft. The supporting slide rod is sealed and slidably disposed inside the first sleeve. An air inlet is provided between the first sleeve and the air inlet pipe. The preparation cavity is elliptical. A connecting pipe communicating with the inside of the first sleeve is provided inside the connecting rod. Multiple air jets are opened on the connecting rod at equal intervals. The air jets are connected to the connecting pipe, and the air jets are matched with the grinding column.

[0011] To facilitate the spraying of air into the bottom of the nutrient solution, preferably, the bottom of the preparation box is provided with a first cavity, a constant pressure pipe is fixedly connected between the first cavity and the top of the preparation box, and the end of the constant pressure pipe away from the first cavity is connected to the upper end of the configuration cavity. A sealing plate is fixedly connected to the end of the rotating shaft near the top of the configuration cavity, and the sealing plate is slidably connected to the preparation box in a sealed manner. The top of the preparation box is provided with a first exhaust port communicating with the configuration cavity, and a second exhaust port matching the first exhaust port is opened on the sealing plate. Multiple air spray pipes are arranged at equal intervals between the first cavity and the configuration cavity.

[0012] To facilitate stirring of the nutrient solution, preferably, the mixing assembly includes multiple sets of fixed cylinders arranged circumferentially on the rotating shaft, and the fixed cylinders are matched with the grinding column.

[0013] To facilitate the mixing of the nutrient solution, preferably, a fixed rod is fixedly connected inside the fixed cylinder, a connecting pipe is provided inside the fixed rod, a sliding rod is slidably and sealed between the fixed cylinder and the fixed rod, a drive disk is fixedly connected to the end of the sliding rod away from the fixed rod, the drive disk is fixedly connected to the connecting rod, the sliding rod has symmetrically opened feed ports, and a spray pipe communicating with the connecting pipe is fixedly connected to the fixed cylinder.

[0014] To facilitate improved mixing of the nutrient solution, preferably, the end of the spray pipe away from the fixed cylinder is symmetrically provided with spray nozzles communicating with the spray pipe, and one of the spray nozzles is matched with the rotating shaft.

[0015] To facilitate the mixing of the nutrient solution, preferably, a rotating ring is sealed and rotated on the fixed cylinder, and a fixed ring is fixedly connected to the end of the fixed cylinder away from the rotating shaft. The fixed ring and the rotating ring are sealed and rotated together. Limiting grooves are symmetrically arranged on the fixed ring, and a driving rod is sealed and slidably arranged in the limiting groove. One end of the driving rod is fixedly connected to the driving disk, and a driving block is fixedly connected to the end of the driving rod away from the driving disk. The inner wall of the rotating ring is provided with a driving groove that matches the driving block.

[0016] To facilitate stirring of the nutrient solution, preferably, multiple stirring blades are fixedly connected in a circular pattern on the rotating ring, and one of the spray nozzles is matched with the stirring blades.

[0017] A method for preparing a hydroponic nutrient solution for tomatoes mainly includes the following steps:

[0018] Step 1: Put the stock solution, powder particles and water for preparing the nutrient solution into the preparation chamber through the feeding port, and rotate the sealing cap into the feeding port;

[0019] Step 2: Turn on the motor. The motor drives the rotating shaft to rotate, and the rotating shaft drives the mixing component to mix the internal liquid and powder particles.

[0020] Step 3: The rotating shaft drives the grinding column to rotate along the inner wall of the mixing tank through the first connecting assembly, and the grinding column grinds the powder particles in the mixture.

[0021] Step 4: The prepared nutrient solution is discharged through the discharge port.

[0022] Compared with the prior art, the present invention provides a tomato hydroponic nutrient solution preparation device, which has the following beneficial effects:

[0023] 1. This tomato hydroponic nutrient solution preparation device uses a rotating shaft to drive the first sleeve to rotate. The first sleeve drives the support slide rod to rotate along the axis of the rotating shaft. The support slide rod drives the grinding column to rotate against the inner wall of the preparation box. At the same time, the rotating shaft drives the mixing component to rotate, causing the nutrient solution in the preparation box to mix and rotate. Under the action of centrifugal force, the powder particles in the nutrient solution move towards the inner wall of the preparation box. At this time, the grinding column grinds the powder particles in the nutrient solution, so that they are quickly integrated into the nutrient solution, thereby effectively improving the mixing rate of the nutrient solution.

[0024] 2. The tomato hydroponic nutrient solution preparation device slides into the first sleeve via a support slide rod. The gas in the first sleeve enters the connecting pipe and is sprayed out from the jet nozzle onto the surface of the grinding column, causing the powder ground by the grinding column to fall into the nutrient solution. This effectively prevents the powder from adhering to the grinding column, while the air bubbles effectively improve the mixing effect of the nutrient solution.

[0025] 3. This tomato hydroponic nutrient solution preparation device uses a drive rod to drive a drive block to slide within a rotating ring. Under the action of the drive groove, the rotating ring rotates, which in turn drives the stirring blades to rotate, thereby effectively improving the mixing effect of the nutrient solution and thus effectively improving the efficiency of nutrient solution preparation. Furthermore, the stirring blades strike the nutrient solution sprayed from one of the nozzles, causing the powder particles in the nutrient solution to impact with the stirring blades, thereby effectively improving the rate and quality of nutrient solution preparation.

[0026] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention grinds the powder particles in the nutrient solution using a grinding column, so that they can be quickly integrated into the nutrient solution, effectively improving the rate and quality of nutrient solution preparation. Attached Figure Description

[0027] Figure 1 This is a cross-sectional schematic diagram of a tomato hydroponic nutrient solution preparation device proposed in this invention.

[0028] Figure 2 This is a schematic diagram of the preparation box of a tomato hydroponic nutrient solution preparation device proposed in this invention;

[0029] Figure 3 This is an exploded schematic diagram of the mixing components of a tomato hydroponic nutrient solution preparation device proposed in this invention.

[0030] Figure 4 This invention provides a tomato hydroponic nutrient solution preparation device. Figure 1 Enlarged view of point A in the middle;

[0031] Figure 5 This invention provides a tomato hydroponic nutrient solution preparation device. Figure 1 Enlarged view of point B in the middle;

[0032] Figure 6 This invention provides a tomato hydroponic nutrient solution preparation device. Figure 1 Enlarged diagram of point C in the middle.

[0033] In the diagram: 1. Preparation box; 101. Feeding port; 102. First exhaust port; 103. Preparation chamber; 104. First cavity; 105. Constant pressure pipe; 106. Discharge port; 107. Jet pipe; 2. Motor; 201. Rotating shaft; 202. Sealing disc; 203. Second exhaust port; 204. First sleeve; 205. Support slide rod; 206. Spring; 207. Connecting rod; 208. Connecting pipe; 209. 210. Air inlet; 211. Air inlet; 212. Grinding column; 3. Fixed cylinder; 301. Fixed rod; 302. Connecting pipe; 303. Spray pipe; 304. Spray nozzle; 4. Drive disc; 401. Sliding rod; 402. Feed inlet; 403. Drive rod; 404. Drive block; 405. Fixed ring; 406. Limiting groove; 407. Rotating ring; 408. Stirring blade; 409. Drive groove. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Example 1: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A tomato hydroponic nutrient solution preparation device includes: a preparation box 1, further including: a preparation cavity 103, which is opened inside the preparation box 1; a feeding port 101, which is opened on the top of the preparation box 1, and a sealing cap is threadedly sealed inside the feeding port 101; a rotating shaft 201, which rotates sealed inside the preparation box 1; a motor 2, which is fixedly installed on the top of the preparation box 1, and the output end of the motor 2 is fixedly connected to one end of the rotating shaft 201; a discharge port 106, which is installed at the bottom of the preparation box 1; two sets of first connecting components, which are symmetrically fixedly installed on the rotating shaft 201; a grinding column 212, which is rotatably installed between two adjacent first connecting components, and the grinding column 212 is in contact with the side wall of the preparation cavity 103; and multiple mixing components, which are fixedly installed on the rotating shaft 201.

[0037] The first connecting assembly includes a first sleeve 204 symmetrically fixed on a rotating shaft 201, a support slide rod 205 slidably disposed inside the first sleeve 204, a spring 206 fixedly connected between the support slide rod 205 and the bottom of the first sleeve 204, and a grinding column 212 rotatably disposed between the two support slide rods 205.

[0038] When preparing the hydroponic nutrient solution for tomatoes, the stock solution, powder particles, and water are placed into the preparation chamber 103 through the feeding port 101. The sealing cap is rotated into the feeding port 101 to seal the preparation chamber 1. When mixing the nutrient solution, the motor 2 is turned on, which drives the rotating shaft 201 to rotate. The rotating shaft 201 drives the first sleeve 204 to rotate, and the first sleeve 204 drives the support slide rod 205 to rotate along the axis of the rotating shaft 201. The support slide rod 205 drives the grinding column 212 to rotate against the inner wall of the preparation chamber 1. At the same time, the rotating shaft 201 drives the mixing component to rotate, causing the nutrient solution in the preparation chamber 1 to mix and rotate. Under the action of centrifugal force, the powder particles in the nutrient solution move towards the inner wall of the preparation chamber 1. At this time, the grinding column 212 grinds the powder particles in the nutrient solution, making them quickly blend into the nutrient solution, thereby effectively improving the mixing rate of the nutrient solution.

[0039] Example 2: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A tomato hydroponic nutrient solution preparation device, basically the same as in Example 1, further comprising: a connecting rod 207 fixedly connected between two supporting slide rods 205; the connecting rod 207 being disposed between the grinding column 212 and the rotating shaft 201, and adjacent to the grinding column 212; an air inlet pipe 210 communicating with the outside of the preparation box 1 being disposed inside the rotating shaft 201; the supporting slide rods 205 being sealed and slidably disposed within the first sleeve 204; an air inlet 211 being disposed between the first sleeve 204 and the air inlet pipe 210; the preparation cavity 103 being elliptical in shape; and a connection point being disposed inside the connecting rod 207 that communicates with the first sleeve 204.

[0040] The connecting pipe 208 is connected to the connecting rod 207, which has multiple equidistant air nozzles 209. The air nozzles 209 are connected to the connecting pipe 208 and are matched with the grinding column 212.

[0041] The bottom of the preparation box 1 is provided with a first cavity 104. A constant pressure pipe 105 is fixedly connected between the first cavity 104 and the top of the preparation box 1. The end of the constant pressure pipe 105 away from the first cavity 104 is connected to the upper end of the configuration cavity 103. A sealing plate 202 is fixedly connected to the end of the rotating shaft 201 near the top of the configuration cavity 103. The sealing plate 202 is slidably connected to the preparation box 1. The top of the preparation box 1 is provided with a first exhaust port 102 that communicates with the configuration cavity 103. A second exhaust port 203 matching the first exhaust port 102 is opened on the sealing plate 202. A plurality of jet pipes 107 are arranged at equal intervals between the first cavity 104 and the configuration cavity 103.

[0042] When the support slide rod 205 rotates along the axis of the rotating shaft 201, it slides along the elliptical configuration cavity 103. When the support slide rod 205 slides outward from the first sleeve 204, the first sleeve 204 draws gas through the air inlet 211 and the air inlet pipe 210. When the support slide rod 205 slides inward from the first sleeve 204, the gas inside the first sleeve 204 enters the connecting pipe 208 and is sprayed out from the jet nozzle 209 onto the surface of the grinding column 212, causing the ground powder from the grinding column 212 to fall into the nutrient solution, thereby achieving... It effectively prevents powder from adhering to the grinding column 212, while the blown air bubbles effectively improve the mixing effect of the nutrient solution and increase the air pressure in the preparation chamber 103. The air pressure in the first chamber 104 is increased through the constant pressure pipe 105. When the rotating shaft 201 drives the sealing plate 202 to rotate to the point where the second exhaust port 203 is connected to the first exhaust port 102, the air pressure in the preparation chamber 103 is reduced. At the same time, the gas in the first chamber 104 is ejected from the jet pipe 107, causing air bubbles to be generated at the bottom of the nutrient solution, which effectively improves the mixing effect of the nutrient solution.

[0043] Example 3: Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A tomato hydroponic nutrient solution preparation device is basically the same as that in Example 1. Furthermore, the mixing component includes multiple sets of fixed cylinders 3 that are circumferentially fixed on the rotating shaft 201, and the fixed cylinders 3 are matched with the grinding column 212.

[0044] A fixed rod 301 is fixedly connected inside the fixed cylinder 3. A connecting pipe 302 is provided inside the fixed rod 301. A sliding rod 401 is provided between the fixed cylinder 3 and the fixed rod 301 in a sealed sliding manner. A drive disk 4 is fixedly connected to the end of the sliding rod 401 away from the fixed rod 301. The drive disk 4 is fixedly connected to the connecting rod 207. The sliding rod 401 has symmetrically opened feed ports 402. A spray pipe 303 communicating with the connecting pipe 302 is fixedly connected to the fixed cylinder 3.

[0045] The end of the spray pipe 303 away from the fixed cylinder 3 is symmetrically provided with spray nozzles 304 that communicate with the spray pipe 303, and one of the spray nozzles 304 is matched with the rotating shaft 201.

[0046] When the support slide rod 205 slides outward from the first sleeve 204 via the spring 206, the connecting rod 207 pulls the slide rod 401 outward from the fixed cylinder 3 via the drive disc 4. At this time, the feed port 402 slides out of the fixed cylinder 3, and the nutrient solution enters the slide rod 401 through the feed port 402. When the support slide rod 205 drives the slide rod 401 to slide into the fixed cylinder 3 via the connecting rod 207 and the drive disc 4, the nutrient solution in the slide rod 401 is sprayed out from the nozzle 304 through the connecting pipe 302 and the spray pipe 303 under pressure, causing the nutrient solution to impact the rotating shaft 201, thereby effectively improving the mixing effect of the nutrient solution.

[0047] Example 4: Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A tomato hydroponic nutrient solution preparation device is basically the same as in Example 1, but further, a rotating ring 407 is sealed and rotated on the fixed cylinder 3, and a fixed ring 405 is fixedly connected to the end of the fixed cylinder 3 away from the rotating shaft 201. The fixed ring 405 and the rotating ring 407 are sealed and rotated. Limiting grooves 406 are symmetrically arranged on the fixed ring 405. A driving rod 403 is sealed and slidably arranged in the limiting groove 406. One end of the driving rod 403 is fixedly connected to the driving disk 4, and a driving block 404 is fixedly connected to the end of the driving rod 403 away from the driving disk 4. A driving groove 409 matching the driving block 404 is provided on the inner wall of the rotating ring 407.

[0048] Multiple stirring blades 408 are fixedly connected to the rotating ring 407 in a circular pattern, and one of the nozzles 304 is matched with the stirring blades 408.

[0049] When the sliding rod 401 slides inside the fixed cylinder 3, the driving rod 403 drives the driving block 404 to slide inside the rotating ring 407. Under the action of the driving groove 409, the rotating ring 407 rotates, and the rotating ring 407 drives the stirring blade 408 to rotate, thereby effectively improving the mixing effect of the nutrient solution and thus effectively improving the efficiency of nutrient solution preparation. In addition, the stirring blade 408 strikes the nutrient solution sprayed from one of the nozzles 304, causing the powder particles in the nutrient solution to impact with the stirring blade 408, thereby effectively improving the rate and quality of nutrient solution preparation.

[0050] It should be noted that one-way valves are provided in the first exhaust port 102, constant pressure pipe 105, jet pipe 107, end of connecting pipe 208 near the first sleeve 204, jet port 209, air inlet 211 and spray pipe 303, and control valve is provided in the discharge port 106. Both the one-way valves and control valves adopt existing technology.

[0051] Example 5: A method for preparing a hydroponic nutrient solution for tomatoes, mainly including the following steps:

[0052] Step 1: Put the stock solution, powder particles and water for preparing the nutrient solution into the preparation chamber 103 through the feeding port 101, and rotate the sealing cap into the feeding port 101;

[0053] Step 2: Turn on motor 2. Motor 2 drives shaft 201 to rotate. Shaft 201 drives the mixing component to mix the internal liquid and powder particles.

[0054] Step 3: The rotating shaft 201 drives the grinding column 212 to rotate along the inner wall of the mixing box 1 through the first connecting assembly, and the grinding column 212 grinds the powder particles in the mixture.

[0055] Step 4: The prepared nutrient solution is discharged through the discharge port 106.

[0056] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for preparing hydroponic nutrient solution for tomatoes, comprising: The preparation box (1) is characterized in that it further includes: The preparation chamber (103) is located inside the preparation box (1); The feeding port (101) is located on the top of the preparation box (1), and the feeding port (101) is internally threaded and sealed with a sealing cap; The rotating shaft (201) is sealed and rotated inside the preparation box (1); The motor (2) is fixedly installed on the top of the preparation box (1), and the output end of the motor (2) is fixedly connected to one end of the rotating shaft (201); The discharge port (106) is located at the bottom of the preparation box (1); Two sets of first connecting components are symmetrically fixed on the rotating shaft (201); The grinding column (212) is rotatably disposed between two adjacent first connecting components, and the grinding column (212) is in contact with the side wall of the preparation cavity (103); Multiple sets of hybrid components are fixedly mounted on the rotating shaft (201); The first connecting assembly includes a first sleeve (204) symmetrically fixed on a rotating shaft (201), a support slide rod (205) slidably disposed inside the first sleeve (204), a spring (206) fixedly connected between the support slide rod (205) and the bottom of the first sleeve (204), and the grinding column (212) rotatably disposed between the two support slide rods (205); A connecting rod (207) is fixedly connected between two supporting slide rods (205). The connecting rod (207) is disposed between the grinding column (212) and the rotating shaft (201), and the connecting rod (207) is adjacent to the grinding column (212). An air inlet pipe (210) communicating with the outside of the preparation box (1) is provided inside the rotating shaft (201). The supporting slide rods (205) are sealed and slidably disposed inside the first sleeve (204). An air inlet (211) is provided between the air inlet pipe (210) and the air inlet pipe (210). The preparation chamber (103) is elliptical. A connecting pipe (208) communicating with the inside of the first sleeve (204) is provided inside the connecting rod (207). Multiple air jets (209) are provided on the connecting rod (207) at equal intervals. The air jets (209) are connected to the connecting pipe (208), and the air jets (209) are matched with the grinding column (212). The bottom of the preparation box (1) is provided with a first cavity (104). A constant pressure pipe (105) is fixedly connected between the first cavity (104) and the top of the preparation box (1). The end of the constant pressure pipe (105) away from the first cavity (104) is connected to the upper end of the preparation cavity (103). A sealing plate (202) is fixedly connected to the end of the rotating shaft (201) near the top of the preparation cavity (103). The sealing plate (202) is slidably connected to the preparation box (1). The top of the preparation box (1) is provided with a first exhaust port (102) communicating with the preparation cavity (103). A second exhaust port (203) matching the first exhaust port (102) is opened on the sealing plate (202). A plurality of jet pipes (107) are arranged at equal intervals between the first cavity (104) and the preparation cavity (103).

2. The tomato hydroponic nutrient solution preparation device according to claim 1, characterized in that, The mixing assembly includes multiple sets of fixed cylinders (3) arranged in a circular pattern on the rotating shaft (201), and the fixed cylinders (3) are matched with the grinding column (212).

3. The tomato hydroponic nutrient solution preparation device according to claim 2, characterized in that, A fixed rod (301) is fixedly connected inside the fixed cylinder (3). A connecting pipe (302) is provided inside the fixed rod (301). A sliding rod (401) is provided between the fixed cylinder (3) and the fixed rod (301) in a sealed sliding manner. A drive disk (4) is fixedly connected to one end of the sliding rod (401) away from the fixed rod (301). The drive disk (4) is fixedly connected to the connecting rod (207). The sliding rod (401) has symmetrically opened feed ports (402). A spray pipe (303) communicating with the connecting pipe (302) is fixedly connected to the fixed cylinder (3).

4. The tomato hydroponic nutrient solution preparation device according to claim 3, characterized in that, The end of the spray pipe (303) away from the fixed cylinder (3) is symmetrically provided with a spray nozzle (304) communicating with the spray pipe (303), and one of the spray nozzles (304) is matched with the rotating shaft (201).

5. The tomato hydroponic nutrient solution preparation device according to claim 4, characterized in that, A rotating ring (407) is rotatably and sealed on the fixed cylinder (3). A fixed ring (405) is fixedly connected to one end of the fixed cylinder (3) away from the rotating shaft (201). The fixed ring (405) and the rotating ring (407) are rotatably and sealed. Limiting grooves (406) are symmetrically arranged on the fixed ring (405). A driving rod (403) is slidably and sealed inside the limiting groove (406). One end of the driving rod (403) is fixedly connected to the driving disk (4). A driving block (404) is fixedly connected to the other end of the driving rod (403) away from the driving disk (4). A driving groove (409) matching the driving block (404) is provided on the inner wall of the rotating ring (407).

6. The tomato hydroponic nutrient solution preparation device according to claim 5, characterized in that, The rotating ring (407) has multiple stirring blades (408) fixedly connected in a circular pattern, and one of the nozzles (304) is matched with the stirring blades (408).

7. A method for preparing a hydroponic nutrient solution for tomatoes, comprising the tomato hydroponic nutrient solution preparation device as described in claim 1, characterized in that, The main steps include: Step 1: Put the stock solution, powder particles and water for preparing the nutrient solution into the preparation chamber (103) through the feeding port (101), and rotate the sealing cap into the feeding port (101); Step 2: Turn on the motor (2). The motor (2) drives the rotating shaft (201) to rotate. The rotating shaft (201) drives the mixing component to mix the internal liquid and powder particles. Step 3: The rotating shaft (201) drives the grinding column (212) to rotate along the inner wall of the mixing box (1) through the first connecting component, and the grinding column (212) grinds the powder particles in the mixture. When the support slide rod (205) rotates along the axis of the rotating shaft (201), the support slide rod (205) slides along the elliptical configuration cavity (103). When the support slide rod (205) slides outward from the first sleeve (204), the first sleeve (204) draws gas through the air inlet (211) and the air inlet pipe (210). When the support slide rod (205) slides inward from the first sleeve (204), the gas in the first sleeve (204) enters the connecting pipe (208) and is sprayed out from the jet nozzle (209) onto the surface of the grinding column (212), so that the grinding powder of the grinding column (212) is ground. The powder does not fall into the nutrient solution, thus effectively preventing the powder from adhering to the grinding column (212). At the same time, the air bubbles blown out effectively improve the mixing effect of the nutrient solution and increase the air pressure in the preparation chamber (103). The air pressure in the first chamber (104) is increased through the constant pressure tube (105). When the rotating shaft (201) drives the sealing plate (202) to rotate to the point where the second exhaust port (203) is connected to the first exhaust port (102), the air pressure in the preparation chamber (103) is reduced. At the same time, the gas in the first chamber (104) is ejected from the jet pipe (107), causing air bubbles to be generated at the bottom of the nutrient solution. Step 4: The prepared nutrient solution is discharged through the discharge port (106).

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