Nutrient solution mixing and preparing device

Abstract

The invention relates to the technical field of medical equipment, in particular to a nutrient solution mixing and preparing device which comprises a stirring barrel, a rotating shaft, a driving motor, a filtering mechanism, a smashing mechanism and a lifting mechanism. The stirring barrel is provided with an inner cavity, a feeding hole and a discharging hole; the feeding hole and the discharging hole are both communicated with the inner cavity; the inner cavity is used for accommodating a mixed solution formed by raw materials and water; the rotating shaft is rotatably arranged in the inner cavity; the driving motor is connected to one end of the rotating shaft to drive the rotating shaft to rotate; the filtering mechanism is connected to the rotating shaft and rotates along with rotation of the rotating shaft, the filtering mechanism comprises a filtering hopper, and the filtering hopper is used for filtering and obtaining cakes in the mixed liquid in the rotating process; the crushing mechanism is arranged in the filtering hopper and is used for crushing the cakes filtered by the filtering hopper; the lifting mechanism is used for driving the filtering mechanism to axially move along the rotating shaft. The nutrient solution mixing and preparing device can crush cakes in the mixed solution, so that raw materials and water are fully stirred and mixed.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a nutrient solution mixing and modulation device. Background Art

[0002] Enteral nutrition suspension is referred to as nutrient solution, which is used to provide the nutrients needed by the body for patients who cannot eat regular food on their own. At present, when preparing nutrient solution, medical staff need to manually mix the raw materials with warm water to obtain a mixed solution, and then filter the mixed solution to filter out the lumps therein, so as to avoid the lumps blocking the infusion line. The above operation will not only cause the waste of some raw materials, but also affect the concentration of the nutrient solution. The above problems need to be solved urgently. Summary of the invention

[0003] Based on this, it is necessary to provide a nutrient solution mixing and preparation device to address the problem that the filtering and agglomeration operation in the current nutrient solution preparation process will lead to waste of raw materials and reduce the concentration of the nutrient solution.

[0004] The above purpose is achieved through the following technical solutions: A nutrient solution mixing and modulation device comprises a mixing drum, a rotating shaft, a driving motor, a filtering mechanism, a crushing mechanism and a lifting mechanism; the mixing drum is provided with an inner cavity, a feed port and a discharge port; the feed port and the discharge port are both connected to the inner cavity; the inner cavity is used to contain a mixed liquid formed by raw materials and water; the rotating shaft is rotatably arranged in the inner cavity; the driving motor is connected to one end of the rotating shaft to drive the rotating shaft to rotate; the filtering mechanism is connected to the rotating shaft and rotates with the rotation of the rotating shaft, the filtering mechanism comprises a filtering hopper, the filtering hopper is used to filter and obtain lumps in the mixed liquid during the rotation process; the crushing mechanism is arranged in the filtering hopper, the crushing mechanism is used to crush the lumps filtered and obtained by the filtering hopper; the lifting mechanism is arranged between the filtering mechanism and the rotating shaft, the lifting mechanism is used to drive the filtering mechanism to move along the axial direction of the rotating shaft.

[0005] Furthermore, the lifting mechanism includes a rotating ring, a first clamping block and a reciprocating thread groove; the reciprocating thread groove is arranged on the outer peripheral wall of the rotating shaft, the rotating ring can be movably mounted on the rotating shaft, the first clamping block is fixedly arranged on the rotating ring and can be movably embedded in the reciprocating thread groove; the filter hopper is connected to the rotating ring.

[0006] Furthermore, the filtering mechanism also includes a mounting frame connected to the rotating ring, the mounting frame is provided with a mounting opening, and the mounting frame has a first side and a second side that are opposite to each other; the filter hopper includes a connected connecting frame and a hopper body, the connecting frame is connected to the mounting frame and is located on the first side, and the hopper body is passed through the mounting opening and extends to the second side; the hopper body is provided with a filter tank for accommodating agglomerates, and the connecting frame is provided with a yield opening that is connected to the filter tank.

[0007] Furthermore, a plurality of mounting frames are provided, and the plurality of mounting frames are evenly distributed along the axial direction of the rotating shaft, the number of the filter hoppers is the same as the number of the mounting frames, and the plurality of filter hoppers are provided in one-to-one correspondence with the plurality of mounting frames.

[0008] Furthermore, the hopper body includes a first filter plate, a second filter plate and two side plates; a plurality of filter holes are provided on the first filter plate and the second filter plate; the first filter plate and the second filter plate are arranged at an angle and have a unique common edge, the side plate is connected between the first filter plate and the second filter plate, and the two side plates are arranged relative to each other along the radial direction of the rotating shaft; the first filter plate, the second filter plate and the two side plates together constitute a filter tank, and the first filter plate, the second filter plate and the two side plates are all connected to the connecting frame.

[0009] Furthermore, the crushing mechanism includes a first spring, a first extrusion piece, a second spring and a second extrusion piece; the first extrusion piece is fitted with the first filter plate, the first spring is connected between the connecting frame and the first extrusion piece, the second extrusion piece is fitted with the second filter plate, and the second spring is connected between the connecting frame and the second extrusion piece; the nutrient solution mixing and modulation device also includes a speed adjustment mechanism, the speed adjustment mechanism is arranged in the inner cavity and connected between the mixing drum and the rotating ring, the speed adjustment mechanism is used to adjust the axial movement speed of the rotating ring along the rotating shaft, and then adjust the rotation speed of the filter hopper; when the speed adjustment mechanism increases the rotation speed of the filter hopper, the first extrusion piece overcomes the elastic force of the first spring and moves toward the direction close to the common edge of the first filter plate and the second filter plate, and the second extrusion piece overcomes the elastic force of the second spring and moves toward the direction close to the common edge of the first filter plate and the second filter plate, so as to extrude the agglomerates in the filter tank together with the first extrusion piece.

[0010] Furthermore, a first guide strip and a second guide strip are provided on opposite surfaces of the two side plates; the first guide strip is parallel to the first filter plate and is spaced apart, and the first extrusion member is located between the first guide strip and the first filter plate and is in contact with the first guide strip; the second guide strip is parallel to the second filter plate and is spaced apart, and the second extrusion member is located between the second guide strip and the second filter plate and is in contact with the second guide strip.

[0011] Furthermore, the mixing drum has a top cover; the speed adjustment mechanism includes a limit ring and a damping adjustment assembly; the limit ring is movably mounted on the rotating shaft, the limit ring is rotatably connected to the rotating ring, and the damping adjustment assembly is connected between the top cover and the limit ring to provide movement resistance for the limit ring; when the rotating ring moves along the axial direction of the rotating shaft to approach the top cover, the limit ring moves synchronously with the rotating ring in a direction approaching the top cover, and when the rotating ring moves along the axial direction of the rotating shaft away from the top cover, the limit ring moves synchronously with the rotating ring in a direction away from the top cover; when the distance from the limit ring to the top cover changes, the movement resistance provided to the limit ring by the damping adjustment assembly also changes.

[0012] Furthermore, the damping adjustment assembly includes a damping cylinder, a damping rod, a compensating piston, a first piston and a second piston; a sealed inner cavity is provided inside the damping cylinder, one end of the damping cylinder is connected to a limit ring, one end of the damping rod is connected to a top cover, and an end of the damping rod away from the top cover is inserted into the sealed inner cavity; the first piston is connected to the end of the damping rod and is located in the sealed inner cavity, the second piston is rotatably connected to the first piston and fits with the first piston, the compensating piston is movably sleeved on the damping rod and is located in the sealed inner cavity, and the compensating piston and the second piston divide the sealed inner cavity into a compensating air cavity, a first liquid cavity and a second liquid cavity; the compensating air cavity is located between the compensating piston and the damping cylinder, and the compensating air cavity is filled with air; the A liquid chamber is located between the compensating piston and the second piston, the second liquid chamber is located between the second piston and the damping cylinder, the first piston is located in the first liquid chamber, and the first liquid chamber and the second liquid chamber are both filled with damping liquid; a first damping hole is provided on the first piston, and a second damping hole is provided on the second piston. At least part of the structure of the first damping hole and at least part of the structure of the second damping hole overlap in the axial direction of the damping rod to connect the first liquid chamber with the second liquid chamber. When the second piston rotates relative to the first piston, the area of ​​the axial overlapping part of the first damping hole and the second damping hole will change; a second clamping block is provided on the second piston, and a spiral groove is provided on the inner side wall of the damping cylinder. The second clamping block is embedded in the spiral groove.

[0013] Furthermore, at least two first springs are provided between each connecting frame and the first extrusion member, and at least two first springs are provided at intervals; at least two second springs are provided between each connecting frame and the second extrusion member, and at least two second springs are provided at intervals.

[0014] The beneficial effects of the present invention are: The present invention provides a nutrient solution mixing and modulation device, which is used to fully mix the raw materials and water required for modulating the nutrient solution to obtain the nutrient solution. When in use, the operator first adds the raw materials and water into the mixing drum from the feed port, and then starts the driving motor to drive the rotating shaft to rotate. The rotating shaft drives the filtering mechanism to rotate to achieve the stirring of the raw materials and water. At the same time, the filtering mechanism can also filter out the lumps in the mixed liquid obtained by mixing the raw materials and water and retain them in the filter hopper. The crushing mechanism can crush the lumps in the filter hopper to ensure that the raw materials and water are fully mixed. While the filtering mechanism and the crushing mechanism are working, the lifting mechanism drives the filtering mechanism to move along the axial direction of the rotating shaft, so that the filtering mechanism can continuously move along the axial direction of the rotating shaft, thereby filtering the lumps at different heights in the inner cavity, and crushing them using the crushing mechanism. Through the above-mentioned arrangement, the lumps in the mixed liquid in the inner cavity can be fully filtered and crushed, so as to eliminate the lumps in the mixed liquid as much as possible to ensure that the raw materials and water are fully mixed and stirred.

[0015] To sum up, the above-mentioned nutrient solution mixing and modulation device can fully filter and crush the lumps in the mixed liquid of raw materials and water when mixing the nutrient solution, so that the raw materials and water can be fully and evenly mixed. Moreover, since the above-mentioned nutrient solution mixing and modulation device can crush the lumps, the operator does not need to filter the mixed liquid, which not only simplifies the operating steps of nutrient solution preparation, but also avoids the waste of raw materials and improves the accuracy of nutrient solution concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a nutrient solution mixing and modulation device according to an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of a nutrient solution mixing and modulation device shown; Figure 3 for Figure 2 A magnified view of part A; Figure 4 for Figure 2 A schematic diagram of the structure of the filtering mechanism in FIG. Figure 5 for Figure 4 The structural schematic diagram of the filtering mechanism shown is from another perspective; Figure 6 for Figure 5 A cross-sectional view of the filter mechanism shown in the AA direction; Figure 7 for Figure 6 A magnified view of part D in the middle; Figure 8 for Figure 2 A magnified view of part B; Fig. 9 for Figure 2 Enlarged view of part C; Fig.10 for Figure 2 A schematic diagram of the structure of the speed regulating mechanism; Fig.11 for Fig.10 Magnified view of part E in FIG.

[0017] in: 100, nutrient solution mixing and modulation device; 10, mixing drum; 101, inner cavity; 102, feed inlet; 103, discharge outlet; 104, top cover; 11, rotating shaft; 12, filtering mechanism; 121, filtering hopper; 122, mounting frame; 1221, mounting port; 1222, first side; 1223, second side; 123, connecting frame; 1231, yielding port; 124, hopper body; 1241, filtering tank; 1242, first filter plate; 1243, second filter plate; 1244, side plate; 1245, filtering hole; 1246, first guide strip; 1247, second guide strip; 13, crushing mechanism; 131, first spring; 1 32. First extrusion member; 133. Second spring; 134. Second extrusion member; 14. Lifting mechanism; 141. Rotating ring; 142. First clamping block; 143. Reciprocating threaded groove; 15. Speed ​​regulating mechanism; 151. Limiting ring; 152. Damping regulating assembly; 1521. Damping cylinder; 1522. Damping rod; 1523. Compensating piston; 1524. First piston; 1525. Second piston; 1526. Sealed inner cavity; 15261. Compensating air cavity; 15262. First liquid cavity; 15263. Second liquid cavity; 1527. First damping hole; 1528. Second damping hole; 1529. Second clamping block; 1530. Spiral groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the mechanisms herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] See also Figures 1 to 7 The present invention provides a nutrient solution mixing and modulation device 100, which is used to fully mix the raw materials and water required for the nutrient solution to obtain the nutrient solution. The nutrient solution mixing and modulation device 100 includes a mixing drum 10, a rotating shaft 11, a driving motor (not shown in the figure), a filtering mechanism 12, a crushing mechanism 13 and a lifting mechanism 14.

[0022] The mixing drum 10 is the main structure of the nutrient solution mixing and modulation device 100, and is also a container for containing raw materials and water. The mixing drum 10 is provided with an inner cavity 101, a feed port 102, and a discharge port 103. The feed port 102 and the discharge port 103 are both connected to the inner cavity 101, and the inner cavity 101 is used to contain a mixed liquid formed by the raw materials and water. When in use, the operator adds the raw materials and water into the inner cavity 101 through the feed port 102, and after the raw materials and water are evenly mixed in the inner cavity 101 to obtain the nutrient solution, the nutrient solution can be discharged from the inner cavity 101 from the discharge port 103.

[0023] The rotating shaft 11 is a generally cylindrical long rod. The rotating shaft 11 is rotatably disposed in the inner cavity 101. As a specific example, in this embodiment, the rotating shaft 11 is inserted into the mixing drum 10 in a vertical direction, the bottom end of the rotating shaft 11 is inserted into the inner cavity 101 and is rotatably connected to the bottom wall of the mixing drum 10, and the top end of the rotating shaft 11 extends to the outside of the mixing drum 10 and is used to be connected to the output shaft of the driving motor.

[0024] The drive motor is connected to one end of the rotating shaft 11 to drive the rotating shaft 11 to rotate. As a specific example, in this embodiment, the drive motor is arranged outside the mixing drum 10 and located at the top of the mixing drum 10, and the output shaft of the drive motor is connected to the rotating shaft 11 to drive the rotating shaft 11 to rotate.

[0025] The filter mechanism 12 is connected to the rotating shaft 11 and rotates with the rotation of the rotating shaft 11 to stir and mix the raw materials and water in the inner cavity 101. The filter mechanism 12 includes a filter hopper 121, which is used to filter and obtain lumps in the mixed liquid during the rotation process. It should be noted that the above "the filter hopper 121 is used to filter and obtain lumps in the mixed liquid during the rotation process" means that the filter hopper 121 can filter out the lumps in the mixed liquid and retain them inside the filter hopper 121 during the process of following the rotation of the rotating shaft 11.

[0026] The crushing mechanism 13 is disposed in the filter hopper 121 , and is used to crush the lumps obtained by filtering the filter hopper 121 , so as to eliminate the lumps in the mixed liquid as much as possible.

[0027] The lifting mechanism 14 is disposed between the filter mechanism 12 and the rotating shaft 11, and is used to drive the filter mechanism 12 to move axially along the rotating shaft 11. The lifting mechanism 14 can drive the filter mechanism 12 to move upward along the axial direction of the rotating shaft 11, and can also drive the filter mechanism 12 to move downward along the axial direction of the rotating shaft 11.

[0028] When the operator uses the above-mentioned nutrient solution mixing and modulation device 100 to prepare the nutrient solution, he first adds the raw materials and water into the mixing drum 10 from the feed port 102, and then starts the driving motor to drive the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 drives the filtering mechanism 12 to rotate to achieve the stirring of the raw materials and water. At the same time, the filtering mechanism 12 can also filter out the lumps in the mixed liquid obtained by mixing the raw materials and water and retain them in the filter hopper 121. The crushing mechanism 13 can crush the lumps in the filter hopper 121 to ensure that the raw materials and water are fully mixed. While the filtering mechanism 12 and the crushing mechanism 13 are working, the lifting mechanism 14 drives the filtering mechanism 12 to move along the axial direction of the rotating shaft 11, so that the filtering mechanism 12 can continuously move along the axial direction of the rotating shaft 11, thereby filtering the lumps at different heights in the inner cavity 101 and crushing them by the crushing mechanism 13.

[0029] Through the above configuration, the nutrient solution mixing and modulation device 100 can fully filter and crush the lumps in the mixed solution in the inner cavity 101, thereby eliminating the lumps in the mixed solution as much as possible to ensure that the raw materials and water are fully mixed and stirred. And because the nutrient solution mixing and modulation device 100 can crush the lumps, the operator does not need to filter the mixed solution, which simplifies the operation steps of nutrient solution modulation, avoids the waste of raw materials, and improves the accuracy of nutrient solution concentration.

[0030] See also Figures 2 to 4In some embodiments, the lifting mechanism 14 includes a rotating ring 141, a first clamping block 142 and a reciprocating thread groove 143. The reciprocating thread groove 143 is arranged on the outer peripheral wall of the rotating shaft 11. The rotating ring 141 is roughly annular in structure, and the rotating ring 141 can be movably mounted on the rotating shaft 11. It should be noted that "the rotating ring 141 can be movably mounted on the rotating shaft 11" means that the rotating ring 141 can rotate relative to the rotating shaft 11 and can move along the axial direction of the rotating shaft 11. The first clamping block 142 is fixedly arranged on the rotating ring 141 and movably embedded in the reciprocating thread groove 143. The filter hopper 121 is connected to the rotating ring 141.

[0031] Through the above arrangement, when the driving motor drives the rotating shaft 11 to rotate, the rotating ring 141 will move along the axial direction of the rotating shaft 11 to one end of the rotating shaft 11 while rotating, and then move to the other end of the rotating shaft 11, and the cycle will be repeated continuously. During the process of the rotating ring 141 rotating and moving along the axial direction of the rotating shaft 11, the filter hopper 121 also rotates with the rotating ring 141 and moves along the axial direction of the rotating shaft 11, so that the filter hopper 121 can not only stir and mix the raw materials and water, but also filter and obtain the lumps in the mixed liquid, so that the crushing mechanism 13 can fully crush the lumps.

[0032] See also Figures 4 to 6 In some embodiments, the filter mechanism 12 further includes a mounting frame 122 connected to the rotating ring 141. The mounting frame 122 can be integrally formed, welded, or fixedly connected to the rotating ring 141 by fasteners such as bolts. The mounting frame 122 is generally a rectangular frame, and the mounting frame 122 is provided with a mounting port 1221. The mounting frame 122 has a first side 1222 and a second side 1223 that are opposite to each other. The filter hopper 121 includes a connected connecting frame 123 and a hopper body 124. The connecting frame 123 is generally a rectangular frame, and the connecting frame 123 is connected to the mounting frame 122 and is located on the first side 1222, and the hopper body 124 is penetrated through the mounting port 1221 and extends to the second side 1223. The connecting frame 123 can be integrally formed, welded, or fixedly connected to the mounting frame 122 by fasteners such as bolts. The hopper body 124 is provided with a filter groove 1241 for accommodating agglomerates, and the connecting frame 123 is provided with a make way opening 1231 communicating with the filter groove 1241 .

[0033] Through the above arrangement, when the rotating ring 141 drives the installation frame 122 to rotate, the installation frame 122 drives the connecting frame 123 and the hopper body 124 to rotate synchronously. During the rotation of the hopper body 124, the mixed liquid containing agglomerates enters the filter tank 1241 of the hopper body 124, and the agglomerates are filtered by the hopper body 124 and retained in the filter tank 1241. The liquid can pass through the hopper body 124, thereby filtering and obtaining the agglomerates.

[0034] In some embodiments, a plurality of mounting frames 122 are provided, and the plurality of mounting frames 122 are evenly spaced along the circumference of the rotating shaft 11, and the number of filter hoppers 121 is the same as the number of mounting frames 122, and the plurality of filter hoppers 121 are provided in a one-to-one correspondence with the plurality of mounting frames 122. As a specific example, in this embodiment, three mounting frames 122 and three filter hoppers 121 are provided. In other embodiments, the number of mounting frames and filter hoppers 121 can also be any number such as two, four, or five.

[0035] See also Figures 4 to 7 In some embodiments, the hopper body 124 includes a first filter plate 1242, a second filter plate 1243 and two side plates 1244. The first filter plate 1242 and the second filter plate 1243 are both provided with a plurality of filter holes 1245, so that the hopper body 124 has the function of filtering agglomerates. The first filter plate 1242 and the second filter plate 1243 are arranged at an angle and have a unique common edge. It should be noted that "the first filter plate 1242 and the second filter plate 1243 are arranged at an angle" means that the first filter plate 1242 and the second filter plate 1243 intersect and do not overlap. As a specific example, in this embodiment, the angle between the first filter plate 1242 and the second filter plate 1243 is an acute angle. The side plate 1244 is connected between the first filter plate 1242 and the second filter plate 1243, and the two side plates 1244 are arranged at a relative interval along the radial direction of the rotating shaft 11. The first filter plate 1242 , the second filter plate 1243 and the two side plates 1244 together constitute the filter tank 1241 . The first filter plate 1242 , the second filter plate 1243 and the two side plates 1244 are all connected to the connection frame 123 .

[0036] Through the above arrangement, when the rotating ring 141 drives the installation frame 122 to rotate, the installation frame 122 drives the connecting frame 123 and the hopper body 124 to rotate synchronously. During the rotation of the hopper body 124, the mixed liquid containing agglomerates enters the filter tank 1241 of the hopper body 124, and the agglomerates are filtered by the first filter plate 1242 and the second filter plate 1243 and remain in the filter tank 1241. The liquid can be moved out of the filter tank 1241 from the filter holes 1245 on the first filter plate 1242 and the second filter plate 1243, so that the hopper body 124 can filter and obtain the agglomerates.

[0037] See also Figure 2 as well as Figures 4 to 7In some embodiments, the crushing mechanism 13 includes a first spring 131, a first extrusion member 132, a second spring 133 and a second extrusion member 134. The first extrusion member 132 is arranged in close contact with the first filter plate 1242, and the first spring 131 is connected between the connecting frame 123 and the first extrusion member 132. The second extrusion member 134 is arranged in close contact with the second filter plate 1243, and the second spring 133 is connected between the connecting frame 123 and the second extrusion member 134. As a specific example, in this embodiment, the first extrusion member 132 and the second extrusion member 134 are both long strip structures extending along the radial direction of the rotating shaft 11. In other embodiments, the first extrusion member 132 and the second extrusion member 134 can also be structures of any form such as a block structure and a plate structure.

[0038] The nutrient solution mixing and modulation device 100 further includes a speed regulating mechanism 15, which is disposed in the inner cavity 101 and connected between the mixing drum 10 and the rotating ring 141. The speed regulating mechanism 15 is used to adjust the moving speed of the rotating ring 141 along the axial direction of the rotating shaft 11, thereby adjusting the rotation speed of the filter hopper 121. It should be noted that the speed regulating mechanism 15 can increase or decrease the rotation speed of the filter hopper 121.

[0039] When the speed adjusting mechanism 15 increases the rotation speed of the filter hopper 121, the first extruding member 132 overcomes the elastic force of the first spring 131 and moves toward the common edge of the first filter plate 1242 and the second filter plate 1243, and the second extruding member 134 overcomes the elastic force of the second spring 133 and moves toward the common edge of the first filter plate 1242 and the second filter plate 1243, so as to squeeze the agglomerates in the filter tank 1241 together with the first extruding member 132. When the speed adjusting mechanism 15 decreases the rotation speed of the filter hopper 121, the first extruding member 132 moves away from the common edge of the first filter plate 1242 and the second filter plate 1243, and the second extruding member 134 moves away from the common edge of the first filter plate 1242 and the second filter plate 1243, and the first extruding member 132 and the second extruding member 134 are separated, so that the first extruding member 132 and the second extruding member 134 approach and collide with each other when the rotation speed of the filter hopper 121 increases next time, so as to squeeze and crush the agglomerates. Furthermore, when the rotation speed regulating mechanism 15 reduces the rotation speed of the filter hopper 121 , the liquid in the filter hopper 121 can also backwash the crushed agglomerates out of the filter hopper 121 , so that the crushed agglomerates are fully mixed with water.

[0040] Through the above arrangement, since the speed regulating mechanism 15 is provided to regulate the speeds of the rotating ring 141 and the filter hopper 121, and the speed regulating mechanism 15 can increase or decrease the speed of the filter hopper 121, when the speed of the filter hopper 121 changes, the first extrusion member 132 and the second extrusion member 134 can continuously approach and separate, thereby squeezing and crushing the lumps in the filter hopper 121, and further allowing the raw materials and water to be fully mixed and stirred.

[0041] See also Figures 4 to 7 In some embodiments, a first guide bar 1246 and a second guide bar 1247 are disposed on opposite surfaces of the two side plates 1244. The first guide bar 1246 is parallel to and spaced from the first filter plate 1242, and the first extrusion member 132 is located between and in contact with the first guide bar 1246. The second guide bar 1247 is parallel to and spaced from the second filter plate 1243, and the second extrusion member 134 is located between and in contact with the second guide bar 1247.

[0042] Through the above arrangement, the two first guide strips 1246 on the two side plates 1244 can limit and guide the first extrusion member 132, so that the first extrusion member 132 is always in contact with the first filter plate 1242 and can only move along the surface of the first filter plate 1242. It should be noted that the surface where the first extrusion member 132 is in contact with the first filter plate 1242 and the surface where the first extrusion member 132 is in contact with the first guide strip 1246 are not the same surface, and the above two surfaces can be two mutually divergent surfaces of the first extrusion member 132. Therefore, the first guide strip 1246 can improve the stability of the movement of the first extrusion member 132, thereby ensuring the crushing effect of the first extrusion member 132 on the agglomeration. The two second guide strips 1247 on the two side plates 1244 can limit and guide the second extrusion member 134, so that the second extrusion member 134 is always in contact with the second filter plate 1243 and can only move along the surface of the second filter plate 1243. It should be noted that the surface where the second extrusion piece 134 is attached to the second filter plate 1243 and the surface where the second extrusion piece 134 is attached to the second guide strip 1247 are not the same surface, and the two surfaces may be two mutually divergent surfaces of the second extrusion piece 134. Therefore, the second guide strip 1247 can improve the stability of the movement of the second extrusion piece 134, thereby ensuring the crushing effect of the second extrusion piece 134 on the agglomerates.

[0043] See also Figure 2 , Figure 3 , Figures 7 to 11In some embodiments, the mixing drum 10 has a top cover 104. The speed adjustment mechanism 15 includes a limit ring 151 and a damping adjustment assembly 152. The limit ring 151 is roughly annular in structure, and the limit ring 151 is movably mounted on the rotating shaft 11, and the limit ring 151 is rotatably connected to the rotating ring 141. It should be noted that "the limit ring 151 is movably mounted on the rotating shaft 11" means that the limit ring 151 can move along the axial direction of the rotating shaft 11, and "the limit ring 151 is rotatably connected to the rotating ring 141" means that the limit ring 151 can rotate relative to the rotating ring 141, that is, during the rotation of the rotating ring 141, the limit ring 151 may not rotate. As a specific example, in this embodiment, the limit ring 151 is composed of two relatively arranged half-ring structures connected, and the bottom of the limit ring 151 is sleeved on the top of the rotating ring 141, so that when the rotating ring 141 moves up and down along the axial direction of the rotating shaft 11, it can drive the limit ring 151 to move synchronously along the axial direction of the rotating shaft 11.

[0044] The damping adjustment assembly 152 is connected between the top cover 104 and the limiting ring 151 to provide movement resistance for the limiting ring 151. When the rotating ring 141 moves along the axial direction of the rotating shaft 11 to approach the top cover 104, the limiting ring 151 moves synchronously with the rotating ring 141 in the direction close to the top cover 104. When the rotating ring 141 moves along the axial direction of the rotating shaft 11 away from the top cover 104, the limiting ring 151 moves synchronously with the rotating ring 141 in the direction away from the top cover 104. When the distance between the limiting ring 151 and the top cover 104 changes, the movement resistance provided by the damping adjustment assembly 152 to the limiting ring 151 also changes.

[0045] Through the above arrangement, when the limiting ring 151 follows the rotating ring 141 to move along the axial direction of the rotating shaft 11 toward the top cover 104, the damping adjustment assembly 152 provides resistance for the limiting ring 151 and the rotating ring 141 in the direction away from the top cover 104, and as the distance from the limiting ring 151 to the top cover 104 changes, the magnitude of the above resistance will also change, thereby changing the axial movement speed of the limiting ring 151 and the rotating ring 141 along the rotating shaft 11, and then changing the rotation speed of the rotating ring 141 and the filter hopper 121. Due to the change in the rotation speed of the filter hopper 121, the first extrusion member 132 and the second extrusion member 134 cooperate with the first spring 131 and the second spring 133 to achieve the crushing of the lumps in the filter tank 1241, so that the raw materials and water can be fully mixed. Furthermore, when the damping adjustment component 152 adjusts the rotation speed of the filter hopper 121 to decrease, the liquid in the filter hopper 121 can also backwash the crushed agglomerates out of the filter hopper 121 so that the crushed agglomerates are fully mixed with water.

[0046] In some embodiments, at least two first springs 131 are provided between each connecting frame 123 and the first extrusion member 132, and at least two first springs 131 are provided at intervals. At least two second springs 133 are provided between each connecting frame 123 and the second extrusion member 134, and at least two second springs 133 are provided at intervals. As a specific example, in this embodiment, two first springs 131 are provided between each connecting frame 123 and the first extrusion member 132, and the two first springs 131 are respectively distributed at both ends of the first extrusion member 132, and two second springs 133 are provided between each connecting frame 123 and the second extrusion member 134, and the two second springs 133 are respectively distributed at both ends of the second extrusion member 134. Through the above arrangement, the stability of the first spring 131 driving the first extrusion member 132 to move can be improved, and the stability of the second spring 133 driving the second extrusion member 134 to move can also be improved. In some other embodiments, the first spring 131 and the second spring 133 can also be provided with any number of three, four, five, etc., and the number of the first spring 131 and the second spring 133 can be the same or different.

[0047] See also Figure 2 , Figure 3 , Figures 7 to 11 In some embodiments, the damping adjustment assembly 152 includes a damping cylinder 1521 , a damping rod 1522 , a compensation piston 1523 , a first piston 1524 , and a second piston 1525 .

[0048] The damping cylinder 1521 is a cylindrical structure, and the axial direction of the damping cylinder 1521 is parallel to the axial direction of the rotating shaft 11. A sealed inner cavity 1526 is provided inside the damping cylinder 1521, and one end of the damping cylinder 1521 is connected to the limiting ring 151. The damping rod 1522 is roughly a round rod, and one end of the damping rod 1522 is connected to the top cover 104, and the end of the damping rod 1522 away from the top cover 104 is inserted into the sealed inner cavity 1526. The damping rod 1522 is coaxially arranged with the damping cylinder 1521. The first piston 1524, the second piston 1525 and the compensation piston 1523 are all made of elastic materials, such as rubber, silicone, etc. The first piston 1524 is connected to the end of the damping rod 1522 and is located in the sealed inner cavity 1526, and the second piston 1525 is rotatably connected to the first piston 1524 and fits with the first piston 1524. The compensation piston 1523 is movably mounted on the damping rod 1522 and is located in the sealed inner cavity 1526. It should be noted that "the compensation piston 1523 is movably mounted on the damping rod 1522" means that the compensation piston 1523 can move relative to the damping rod 1522 along the axis of the damping rod 1522. The compensation piston 1523 and the second piston 1525 separate the sealed inner cavity 1526 into a compensation air cavity 15261, a first liquid cavity 15262 and a second liquid cavity 15263. It can be understood that the compensation air cavity 15261, the first liquid cavity 15262 and the second liquid cavity 15263 are all parts of the sealed inner cavity 1526. The compensation air cavity 15261 is located between the compensation piston 1523 and the damping cylinder 1521, and the compensation air cavity 15261 is filled with air. The first liquid chamber 15262 is located between the compensation piston 1523 and the second piston 1525, the second liquid chamber 15263 is located between the second piston 1525 and the damping cylinder 1521, the first piston 1524 is located in the first liquid chamber 15262, and the first liquid chamber 15262 and the second liquid chamber 15263 are both filled with damping liquid. The damping liquid can be a liquid with good viscosity and lubricity, such as silicone oil and glycerin.

[0049] The first piston 1524 is provided with a first damping hole 1527, and the second piston 1525 is provided with a second damping hole 1528. At least a portion of the structure of the first damping hole 1527 overlaps with at least a portion of the structure of the second damping hole 1528 in the axial direction of the damping rod 1522 to communicate the first liquid chamber 15262 with the second liquid chamber 15263. When the second piston 1525 rotates relative to the first piston 1524, the area of ​​the overlapping portion of the first damping hole 1527 and the second damping hole 1528 in the axial direction of the damping rod 1522 will change. The larger the area of ​​the overlapping portion of the first damping hole 1527 and the second damping hole 1528 in the axial direction of the damping rod 1522, the smaller the movement resistance provided by the damping fluid to the limiting ring 151 and the rotating ring 141. Conversely, the smaller the area of ​​the overlapping portion of the first damping hole 1527 and the second damping hole 1528 in the axial direction of the damping rod 1522, the larger the movement resistance provided by the damping fluid to the limiting ring 151 and the rotating ring 141. The second piston 1525 is provided with a second block 1529, and the inner side wall of the damping cylinder 1521 is provided with a spiral groove 1530, and the second block 1529 is embedded in the spiral groove 1530.

[0050] It should be noted that “at least part of the structure of the first damping hole 1527 overlaps with at least part of the structure of the second damping hole 1528 in the axial direction of the damping rod 1522” means that the projection of the first damping hole 1527 in the axial direction of the damping rod 1522 and the projection of the second damping hole 1528 in the axial direction of the damping cylinder 1521 have at least a partial overlapping area. “When the second piston 1525 rotates relative to the first piston 1524, the area of ​​the overlapping part of the first damping hole 1527 and the second damping hole 1528 in the axial direction of the damping rod 1522 will change” means that when the second piston 1525 rotates relative to the first piston 1524, the area of ​​the overlapping area of ​​the projection of the first damping hole 1527 in the axial direction of the damping rod 1522 and the projection of the second damping hole 1528 in the axial direction of the damping cylinder 1521 will change. The above technical effects can be achieved by setting the specific shapes of the first damping hole 1527 and the second damping hole 1528. As a specific example, in this embodiment, the first damping hole 1527 is roughly a rectangular through hole, the second damping hole 1528 is roughly an arc-shaped through hole extending along the circumference of the damping rod 1522, the spacing between the two side surfaces of the second damping hole 1528 in the radial direction of the damping rod 1522 is continuously changing, and the spacing between the two opposite side walls of the second damping hole 1528 in the radial direction of the damping rod 1522 is smaller than the spacing between the two opposite side walls of the first damping hole 1527 in the radial direction of the damping rod 1522.

[0051] Through the above arrangement, when the limiting ring 151 follows the rotating ring 141 to move in the direction close to the top cover 104 along the axial direction of the rotating shaft 11, the damping cylinder 1521 follows the limiting ring 151 to move in the direction close to the top cover 104, while the damping rod 1522 remains stationary, so the volume of the first liquid chamber 15262 increases, the volume of the second liquid chamber 15263 decreases, and the damping fluid in the second liquid chamber 15263 passes through the second damping hole 1528 and the first damping hole 1527 in sequence and enters the first liquid chamber 15262, thereby providing a damping chamber for the limiting ring 151 and the rotating ring 141. 1 provides movement resistance in the direction away from the top cover 104, and in the above process, since the second piston 1525 moves along the axial direction of the damping cylinder 1521, the second block 1529 cooperates with the spiral groove 1530 to drive the second piston 1525 to rotate, so that the area of ​​the overlapping part of the second damping hole 1528 and the first damping hole 1527 in the axial direction of the damping rod 1522 changes, and then changes the movement resistance provided by the damping fluid to the limiting ring 151 and the rotating ring 141, so as to achieve the adjustment of the rotation speed of the rotating ring 141 and the filter hopper 121. Similarly, when the limiting ring 151 follows the rotating ring 141 to move in the direction away from the top cover 104 along the axial direction of the rotating shaft 11, the damping cylinder 1521 will follow the limiting ring 151 to move in the direction away from the top cover 104, while the damping rod 1522 remains stationary, so the volume of the first liquid chamber 15262 will decrease, and the volume of the second liquid chamber 15263 will increase, and the damping liquid in the first liquid chamber 15262 will pass through the first damping hole 1527 and the second damping hole 1528 in turn and enter the second liquid chamber 15263, thereby providing the limiting ring 151 and the rotating ring 141 with a stable state. Providing movement resistance in the direction close to the top cover 104, and in the above process, due to the axial movement of the second piston 1525 along the damping cylinder 1521, the second block 1529 cooperates with the spiral groove 1530 to drive the second piston 1525 to rotate, thereby changing the area of ​​the overlapping part of the second damping hole 1528 and the first damping hole 1527 in the axial direction of the damping rod 1522, thereby changing the movement resistance provided by the damping fluid to the limit ring 151 and the rotating ring 141, so as to achieve the adjustment of the rotation speed of the rotating ring 141 and the filter hopper 121. When the limiting ring 151 follows the rotating ring 141 to move along the axial direction of the rotating shaft 11 toward the top cover 104, the damping cylinder 1521 will move relative to the damping rod 1522 toward the top cover 104. At this time, the compensating piston 1523 will move along the axial direction of the damping rod 1522 toward the top cover 104 to compress the volume of the compensation air chamber 15261, and at the same time compensate for the overall volume change of the first liquid chamber 15262 and the second liquid chamber 15263.When the limiting ring 151 follows the rotating ring 141 to move along the axial direction of the rotating shaft 11 away from the top cover 104, the damping cylinder 1521 will move relative to the damping rod 1522 in the direction away from the top cover 104. At this time, the compensating piston 1523 will move along the axial direction of the damping rod 1522 away from the top cover 104 to increase the volume of the compensation air chamber 15261, and at the same time compensate for the overall volume change of the first liquid chamber 15262 and the second liquid chamber 15263.

[0052] To summarize, due to the provision of the limit ring 151 and the damping adjustment assembly 152, the rotation speed of the rotating ring 141 and the filter hopper 121 can be changed at any time, and then the rotation speed of the filter hopper 121 can be changed at any time, so that the first extrusion member 132 and the second extrusion member 134 cooperate with the first spring 131 and the second spring 133 to achieve continuous crushing of the lumps in the filter tank 1241, so that the raw materials and water can be fully mixed.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A nutrient solution mixing and modulation device, characterized in that: include: The mixing drum (10) is provided with an inner cavity (101), a feed port (102) and a discharge port (103); the feed port (102) and the discharge port (103) are both connected to the inner cavity (101); the inner cavity (101) is used to contain a mixed liquid formed by raw materials and water; A rotating shaft (11) rotatably disposed in the inner cavity (101); A driving motor connected to one end of the rotating shaft (11) to drive the rotating shaft (11) to rotate; A filtering mechanism (12) connected to the rotating shaft (11) and rotating along with the rotation of the rotating shaft (11), the filtering mechanism (12) comprising a filtering hopper (121), the filtering hopper (121) being used to filter and obtain agglomerates in the mixed liquid during the rotation process; A crushing mechanism (13) is arranged in the filter hopper (121), and the crushing mechanism (13) is used to crush the lumps filtered by the filter hopper (121); a lifting mechanism (14) disposed between the filtering mechanism (12) and the rotating shaft (11), the lifting mechanism (14) being used to drive the filtering mechanism (12) to move along the axial direction of the rotating shaft (11); the lifting mechanism (14) comprising a rotating ring (141), the rotating ring (141) being movably sleeved on the rotating shaft (11); A speed regulating mechanism (15), the speed regulating mechanism (15) being arranged in the inner cavity (101) and connected between the mixing drum (10) and the rotating ring (141), the speed regulating mechanism (15) being used to regulate the axial movement speed of the rotating ring (141) along the rotating shaft (11), thereby regulating the rotation speed of the filter hopper (121); when the speed regulating mechanism (15) increases the rotation speed of the filter hopper (121), the pulverizing mechanism (13) is close to the filtering mechanism (12), so as to squeeze the lumps in the filter hopper (121) together with the filtering mechanism (12).

2. The nutrient solution mixing and modulation device according to claim 1, characterized in that: The lifting mechanism (14) further comprises a first clamping block (142) and a reciprocating thread groove (143); the reciprocating thread groove (143) is arranged on the outer peripheral wall of the rotating shaft (11); the first clamping block (142) is fixedly arranged on the rotating ring (141) and movably embedded in the reciprocating thread groove (143); the filter hopper (121) is connected to the rotating ring (141).

3. The nutrient solution mixing and modulation device according to claim 2, characterized in that: The filtering mechanism (12) further comprises a mounting frame (122) connected to the rotating ring (141), the mounting frame (122) being provided with a mounting opening (1221), and the mounting frame (122) having a first side (1222) and a second side (1223) which are separated from each other; the filtering hopper (121) comprises a connected connecting frame (123) and a hopper body (124), the connecting frame (123) being connected to the mounting frame (122) and being located on the first side (1222), the hopper body (124) being passed through the mounting opening (1221) and extending to the second side (1223); the hopper body (124) being provided with a filtering groove (1241) for accommodating the agglomerates, and the connecting frame (123) being provided with a making way opening (1231) which is in communication with the filtering groove (1241).

4. The nutrient solution mixing and modulation device according to claim 3, characterized in that: A plurality of the mounting frames (122) are provided, and the plurality of mounting frames (122) are evenly distributed along the axial direction of the rotating shaft (11). The number of the filter hoppers (121) is the same as the number of the mounting frames (122), and the plurality of filter hoppers (121) and the plurality of mounting frames (122) are provided in a one-to-one correspondence.

5. The nutrient solution mixing and modulation device according to claim 3, characterized in that: The hopper body (124) comprises a first filter plate (1242), a second filter plate (1243) and two side plates (1244); a plurality of filter holes (1245) are provided on the first filter plate (1242) and the second filter plate (1243); the first filter plate (1242) and the second filter plate (1243) are arranged at an angle and have a unique common edge; the side plate (1244) is connected between the first filter plate (1242) and the second filter plate (1243); the two side plates (1244) are arranged at intervals along the radial direction of the rotating shaft (11); the first filter plate (1242), the second filter plate (1243) and the two side plates (1244) together constitute the filter tank (1241); the first filter plate (1242), the second filter plate (1243) and the two side plates (1244) are all connected to the connecting frame (123).

6. The nutrient solution mixing and modulation device according to claim 5, characterized in that: The pulverizing mechanism (13) comprises a first spring (131), a first extrusion member (132), a second spring (133) and a second extrusion member (134); the first extrusion member (132) is arranged in close contact with the first filter plate (1242); the first spring (131) is connected between the connecting frame (123) and the first extrusion member (132); the second extrusion member (134) is arranged in close contact with the second filter plate (1243); the second spring (133) is connected between the connecting frame (123) and the second extrusion member (134); When the rotation speed regulating mechanism (15) increases the rotation speed of the filter hopper (121), the first extrusion member (132) overcomes the elastic force of the first spring (131) and moves toward the direction close to the common edge of the first filter plate (1242) and the second filter plate (1243), and the second extrusion member (134) overcomes the elastic force of the second spring (133) and moves toward the direction close to the common edge of the first filter plate (1242) and the second filter plate (1243), so as to extrude the agglomerates in the filter tank (1241) together with the first extrusion member (132).

7. The nutrient solution mixing and modulation device according to claim 6, characterized in that: A first guide strip (1246) and a second guide strip (1247) are provided on opposite surfaces of the two side plates (1244); the first guide strip (1246) is parallel to the first filter plate (1242) and is spaced apart from each other, and the first extrusion member (132) is located between the first guide strip (1246) and the first filter plate (1242) and is in contact with the first guide strip (1246); the second guide strip (1247) is parallel to the second filter plate (1243) and is spaced apart from each other, and the second extrusion member (134) is located between the second guide strip (1247) and the second filter plate (1243) and is in contact with the second guide strip (1247).

8. The nutrient solution mixing and preparing device according to claim 6, characterized in that: The mixing drum (10) has a top cover (104); the speed regulating mechanism (15) comprises a stop ring (151) and a damping regulating assembly (152); the stop ring (151) is movably sleeved on the rotating shaft (11); the stop ring (151) is rotatably connected to the rotating ring (141); the damping regulating assembly (152) is connected between the top cover (104) and the stop ring (151) to provide movement resistance for the stop ring (151); when the rotating ring (141) moves along the axial direction of the rotating shaft (11) and approaches the top cover (104), the stop ring (151) moves toward the top cover (104). ), the limit ring (151) follows the rotating ring (141) to move synchronously in a direction approaching the top cover (104); when the rotating ring (141) moves away from the top cover (104) along the axial direction of the rotating shaft (11), the limit ring (151) follows the rotating ring (141) to move synchronously in a direction away from the top cover (104); when the distance between the limit ring (151) and the top cover (104) changes, the movement resistance provided by the damping adjustment component (152) to the limit ring (151) also changes.

9. The nutrient solution mixing and modulation device according to claim 8, characterized in that: The damping adjustment assembly (152) comprises a damping cylinder (1521), a damping rod (1522), a compensating piston (1523), a first piston (1524) and a second piston (1525); a sealed inner cavity (1526) is provided inside the damping cylinder (1521); one end of the damping cylinder (1521) is connected to the limiting ring (151); one end of the damping rod (1522) is connected to the top cover (104); one end of the damping rod (1522) away from the top cover (104) is inserted into the sealed inner cavity (1526); the first piston (1524) is connected to the end of the damping rod (1522) and is located in the sealed inner cavity (1526); 526), ​​the second piston (1525) is rotatably connected to the first piston (1524) and fits with the first piston (1524), the compensation piston (1523) is movably sleeved on the damping rod (1522) and is located in the sealed inner cavity (1526), ​​the compensation piston (1523) and the second piston (1525) divide the sealed inner cavity (1526) into a compensation air cavity (15261), a first liquid cavity (15262) ​​and a second liquid cavity (15263); the compensation air cavity (15261) is located between the compensation piston (1523) and the damping cylinder (1521), and the compensation air cavity (1526 1) is filled with air; the first liquid chamber (15262) ​​is located between the compensating piston (1523) and the second piston (1525), the second liquid chamber (15263) is located between the second piston (1525) and the damping cylinder (1521), the first piston (1524) is located in the first liquid chamber (15262), and the first liquid chamber (15262) ​​and the second liquid chamber (15263) are both filled with damping liquid; the first piston (1524) is provided with a first damping hole (1527), the second piston (1525) is provided with a second damping hole (1528), and at least part of the structure of the first damping hole (1527) is At least part of the structure of the first damping hole (1527) and the second damping hole (1528) overlap in the axial direction of the damping rod (1522) so that the first liquid chamber (15262) ​​is connected to the second liquid chamber (15263); when the second piston (1525) rotates relative to the first piston (1524), the area of ​​the axial overlapping part of the first damping hole (1527) and the second damping hole (1528) will change; the second piston (1525) is provided with a second clamping block (1529), and the inner side wall of the damping cylinder (1521) is provided with a spiral groove (1530), and the second clamping block (1529) is embedded in the spiral groove (1530).

10. The nutrient solution mixing and preparing device according to claim 6, characterized in that: At least two of the first springs (131) are arranged between each of the connecting frames (123) and the first extrusion member (132), and at least two of the first springs (131) are arranged at intervals; at least two of the second springs (133) are arranged between each of the connecting frames (123) and the second extrusion member (134), and at least two of the second springs (133) are arranged at intervals.

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