A filling device for nutrient solution in homogenized bags for seedling tissue culture

Abstract

This invention relates to the field of filling device technology, specifically disclosing a filling device for nutrient solution in homogenized bags for seedling tissue culture. The device includes a shell assembly, a drive assembly mounted on the outer wall of the shell assembly, and a conveying assembly mounted on the outer wall of the shell assembly. The drive assembly is located above the conveying assembly. Multiple filling assemblies are fixedly connected to the outer wall of the shell assembly, positioned between the drive assembly and the conveying assembly. The drive assembly drives the filling assemblies to operate, and the filling assemblies are used for quantitative filling and infusion of the nutrient solution. This invention uses the conveying assembly to clamp the homogenized bag and move it below the conveying assembly. The drive assembly drives the piston inside the conveying assembly to move, thereby injecting the nutrient solution from the storage tank into the guide tube. A breathing pump then injects the nutrient solution from the guide tube into the homogenized bag. The conveying assembly seals the homogenized bag, thus filling it with the nutrient solution.

Description

Technical Field

[0001] This invention relates to the field of filling device technology, and in particular to a filling device for nutrient solution in homogenized bags for seedling tissue culture. Background Technology

[0002] Plants are almost always susceptible to viral diseases of varying degrees during their growth, with some species even suffering from several viral diseases simultaneously. Therefore, tissue culture technology for seedlings has been widely applied. The cultivation process utilizes treated nutrient solutions, which are typically stored in homogenizing bags. Homogenizing bags are sealed bags with good flexibility and puncture resistance, often used for sample processing, pre-enrichment, or sample dilution in bacterial testing. They are usually used in conjunction with a homogenizer to thoroughly mix the nutrient solution to meet the required standards. This process necessitates the effective filling of the homogenizing bags.

[0003] In the prior art, such as the document with publication number CN110540162B, a filling device for plant nutrient solution is specifically disclosed. The device in the document is suitable for filling bottled products, but cannot fill bagged products. Compared with bagged products, bottled products require more space to carry and are relatively more expensive. Therefore, we propose a filling device for nutrient solution in homogenized bags for seedling tissue culture. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing devices are suitable for filling bottles, but cannot fill bagged packaging. Bottled packaging requires more space to carry than bagged packaging, and the cost of bottled packaging is relatively high.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a filling device for nutrient solution in homogenized bags for seedling tissue culture, comprising an outer shell assembly, a driving assembly installed on the outer wall of the outer shell assembly, a conveying assembly installed on the outer wall of the outer shell assembly, the driving assembly being located above the conveying assembly, and a plurality of filling assemblies fixedly connected to the outer wall of the outer shell assembly, the plurality of filling assemblies being located between the driving assembly and the conveying assembly, the driving assembly being used to drive the filling assemblies to operate, the filling assemblies being used for quantitative filling and infusion of nutrient solution, and the conveying assembly being used to convey and support the homogenized bag.

[0006] Furthermore, the outer casing assembly includes a collection seat, a fixing seat is fixedly connected to the top of the collection seat, a support column is fixedly connected to the top of the fixing seat, a liquid storage tank is fixedly connected to the top of the support column, and a filling tube is fixedly connected to the outer wall of the liquid storage tank.

[0007] Furthermore, the drive assembly includes a hydraulic cylinder, the output end of which is fixedly connected to a connecting plate, and a plurality of connecting arms are fixedly connected to the outer circumference of the connecting plate. Each of the plurality of connecting arms has a connecting rod fixedly connected to its outer end, and each of the plurality of connecting rods has a limit block slidably connected to its outer circumference. The outer walls of the plurality of limit blocks are respectively connected and fixed to the outer wall of the liquid storage tank.

[0008] Furthermore, the conveying assembly includes a conveying frame, the top of which has an installation groove, and the inner walls of the installation groove have limit grooves on both sides. A first hydraulic rod is fixedly connected to the inner wall of the installation groove, and a support rod is fixedly connected to the inner wall of the installation groove. A limit sleeve is fixedly connected to the end of the support rod. A first slide and a second slide are respectively provided on the inner wall of the installation groove. The ends of the first slide and the second slide are slidably connected to the inner walls of the limit grooves. A first pneumatic clamp is fixedly connected to the top of both the first slide and the second slide. The end of the support rod passes through the second slide and is slidably connected to it. The output end of the first hydraulic rod is fixedly connected to the first slide.

[0009] Furthermore, two first slide rods are fixedly connected to the inner side of the second slide block. The ends of the two first slide rods pass through the first slide block and are slidably connected to it. A first spring is sleeved on the outer circumference of each of the two first slide rods, and a fixing sleeve is fixedly connected to the ends of each of the two first slide rods.

[0010] Furthermore, one end of the first spring is fixedly connected to the first slide block, and the other end of the first spring is fixedly connected to the second slide block.

[0011] Furthermore, a second hydraulic rod is fixedly connected to the top of the first slide block, a fixed plate is fixedly connected to the output end of the second hydraulic rod, a fixed rod is fixedly connected to the outer wall of the fixed plate, a second pneumatic clamp is fixedly connected to the end of the fixed rod, and the end of the fixed rod is connected and fixed to the outer wall of the second pneumatic clamp.

[0012] Furthermore, the filling assembly includes a sealing sleeve, which is fixedly connected to the outer wall of the storage tank. A connecting sleeve is fixedly connected to the bottom of the sealing sleeve. An exhaust pipe is fixedly connected to the outer circumference of the sealing sleeve. A piston is slidably connected to the inner wall of the sealing sleeve. A second sliding rod is fixedly connected to the top of the piston. The top of the second sliding rod passes through the sealing sleeve and is slidably connected to it. The top of the second sliding rod is fixedly connected to the connecting rod. An inlet pipe is fixedly connected to the outer wall of the sealing sleeve at an angle. The upper end of the inlet pipe is fixedly connected to the storage tank. A first one-way valve is fixedly connected to the outer circumference of the inlet pipe.

[0013] Furthermore, an arc-shaped tube is fixedly connected to the outer wall of the connecting sleeve, a second one-way valve is fixedly connected to the outer circumference of the arc-shaped tube, a flow meter is fixedly connected to the highest point of the outer wall of the arc-shaped tube, a controller is fixedly connected to the outer wall of the flow meter, a connecting wire is fixedly connected to the terminal of the controller, and the connecting wire is electrically connected to the flow meter and the second one-way valve respectively. The controller is used to control the opening and closing of the second one-way valve.

[0014] Furthermore, a liquid guide tube is fixedly connected to the outer end of the arc-shaped tube, a sealing plug is slidably connected to the inner wall of the liquid guide tube, a third sliding rod is fixedly connected to the top of the sealing plug, the top of the third sliding rod passes through the liquid guide tube and is slidably connected to it, a pressure tube is fixedly connected to the outer wall of the liquid guide tube, a second spring is sleeved on the outer circumference of the third sliding rod, an injection tube is fixedly connected to the bottom of the liquid guide tube, a third one-way valve is fixedly connected to the outer circumference of the injection tube, one end of the second spring is fixedly connected to the liquid guide tube, and the other end of the second spring is fixedly connected to the sealing plug.

[0015] By means of the above technical solution, the present invention provides a filling device for nutrient solution in homogenized bags for seedling tissue culture, which has at least the following beneficial effects:

[0016] 1. The homogenizing bag is clamped by the conveying component and moved to the bottom of the conveying component. The piston inside the conveying component is driven by the driving component to move, so that the nutrient solution inside the storage tank can be injected into the liquid guide tube. The nutrient solution inside the liquid guide tube is injected into the homogenizing bag by the breathing air pump. The homogenizing bag can be sealed by the conveying component, so that the nutrient solution is filled into the homogenizing bag.

[0017] 2. When the piston slides downwards along the inner wall of the sealing sleeve, the nutrient solution inside the connecting sleeve enters the guide tube through the arc-shaped tube. When the nutrient solution flows past the highest point of the arc-shaped tube, the flow meter can measure the nutrient solution flowing into the guide tube. When the measured value reaches the filling standard of the bagged homogenizing bag, the controller controls the second one-way valve to close. The nutrient solution in the arc-shaped tube near the guide tube flows into the guide tube. At the same time as the second one-way valve closes, the hydraulic cylinder drives the piston to move upwards. The controller controls the second one-way valve to open. The part of the nutrient solution that is stuck between the highest point of the inner wall of the arc-shaped tube and the second one-way valve flows into the connecting sleeve through the arc-shaped tube and the second one-way valve. At the same time, a suction force is generated inside the sealing sleeve, and the inlet pipe again guides the nutrient solution in the storage tank into the connecting sleeve. The piston moves downwards, the second one-way valve closes, and so on, repeating the cycle. This design can improve the filling accuracy.

[0018] 3. By clamping the two corners of the opening of the homogenizing bag with the first pneumatic clamps on the top of the first and second slides, the first slide is moved by the first hydraulic rod. When the first slide moves, it drives the second slide to move. At this time, the first and second slides slide along the inner wall of the limiting groove. When the second slide moves to the end of the limiting groove, the first hydraulic rod continues to move, so that the first slide slides along the outer wall of the first slide rod and compresses the first spring. At this time, the first slide moves closer to the second slide, so that the two first pneumatic clamps move closer to each other, thereby opening the top opening of the homogenizing bag.

[0019] 4. The second hydraulic rod moves the fixed rod through the fixed plate, and the second pneumatic clamp pressurizes the mouth of the homogenizing bag. The fixed rod drives the second pneumatic clamp to move back and forth, thereby enabling the homogenizing bag to self-close and seal the bag.

[0020] 5. The first slide block continues to move through the first hydraulic rod, and the first slide block moves the second slide block. When the first slide block slides along the support rod to contact the limiting sleeve, the second slide block is blocked and the first and second slide blocks move away from each other. At this time, the homogenizing bag is detached from the two first pneumatic clamps and can fall into the collection seat. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the housing assembly of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the conveying component of the present invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the conveying component of the present invention.

[0027] Figure 6 This is a partial structural schematic diagram of the conveying component of the present invention.

[0028] Figure 7 This is a schematic diagram of the filling assembly of the present invention.

[0029] Figure 8 This is a schematic diagram of the internal structure of the filling assembly of the present invention.

[0030] Figure 9 This is a schematic diagram of the internal structure of the liquid guide tube of the present invention.

[0031] Figure 10 This is a partial structural diagram of the present invention.

[0032] In the diagram: 1. Outer shell assembly; 101. Collection seat; 102. Fixing seat; 103. Support column; 104. Liquid storage tank; 105. Filling pipe; 2. Drive assembly; 201. Hydraulic cylinder; 202. Connecting plate; 203. Connecting arm; 204. Connecting rod; 205. Limiting block; 3. Conveying assembly; 301. Conveying frame; 302. Mounting groove; 303. Limiting groove; 304. First hydraulic rod; 305. Support rod; 306. Limiting sleeve; 307. First slide; 308. Second slide; 309. First slide rod; 310. First spring; 311. Fixing sleeve; 312. First pneumatic... 313. Clamp; 314. Second pneumatic clamp; 315. Fixed rod; 316. Second hydraulic rod; 317. Fixed plate; 4. Filling assembly; 401. Sealing sleeve; 402. Connecting sleeve; 403. Liquid guide tube; 404. Exhaust pipe; 405. Piston; 406. Second slide rod; 407. Liquid inlet pipe; 408. First check valve; 409. Arc-shaped tube; 410. Second check valve; 411. Controller; 412. Connecting wire; 413. Liquid injection tube; 414. Third check valve; 415. Sealing plug; 416. Third slide rod; 417. Second spring; 418. Pressure tube; 419. Flow meter. Detailed Implementation

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1, please refer to Figure 1 A filling device for nutrient solution in homogenized bags for seedling tissue culture includes an outer shell assembly 1, a drive assembly 2 and a conveying assembly 3 installed on the outer wall of the outer shell assembly 1, the drive assembly 2 being located above the conveying assembly 3, and a plurality of filling assemblies 4 being fixedly connected to the outer wall of the outer shell assembly 1, the plurality of filling assemblies 4 being located between the drive assembly 2 and the conveying assembly 3. The drive assembly 2 is used to drive the filling assemblies 4 to operate, the filling assemblies 4 are used for quantitative filling and infusion of nutrient solution, and the conveying assembly 3 is used to convey and support the homogenized bag.

[0035] Example 2 is based on Example 1, but differs in that it provides a filling device for nutrient solution in homogenized bags for seedling tissue culture; wherein, the outer shell assembly 1 is used for nutrient solution storage and collection.

[0036] Please refer to Figure 1 and Figure 2 The outer casing assembly 1 includes a collection seat 101, a fixing seat 102 fixedly connected to the top of the collection seat 101, a support column 103 fixedly connected to the top of the fixing seat 102, a liquid storage tank 104 fixedly connected to the top of the support column 103, and a filling tube 105 fixedly connected to the outer wall of the liquid storage tank 104.

[0037] Nutrient solution is filled into storage tank 104 through filling tube 105, and bagged nutrient solution is collected through collection seat 101.

[0038] Example 3 is based on Example 2, but differs from Example 2 in that it provides a filling device for nutrient solution in homogenized bags for seedling tissue culture; wherein, the driving component 2 is used to drive the filling component 4 to operate.

[0039] Please refer to Figure 1 and Figure 3 The drive assembly 2 includes a hydraulic cylinder 201. A connecting plate 202 is fixedly connected to the output end of the hydraulic cylinder 201. Multiple connecting arms 203 are fixedly connected to the outer circumference of the connecting plate 202. A connecting rod 204 is fixedly connected to the outer end of each of the multiple connecting arms 203. Limiting blocks 205 are slidably connected to the outer circumference of each of the multiple connecting rods 204. The outer walls of the multiple limiting blocks 205 are respectively connected and fixed to the outer wall of the liquid storage tank 104.

[0040] The hydraulic cylinder 201 pushes the connecting plate 202 to move, the connecting plate 202 drives multiple connecting arms 203 to move, and the multiple connecting arms 203 drive the connecting rod 204 to slide along the inner wall of the limit block 205.

[0041] Example 4 is based on Example 3, but differs from Example 3 in that it provides a filling device for nutrient solution in homogenized bags for seedling tissue culture; wherein, the conveying component 3 is used to convey and support the homogenized bags.

[0042] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6The conveying assembly 3 includes a conveying frame 301. A mounting groove 302 is formed on the top of the conveying frame 301. Limiting grooves 303 are formed on both sides of the inner wall of the mounting groove 302. A first hydraulic rod 304 is fixedly connected to the inner wall of the mounting groove 302. A support rod 305 is fixedly connected to the inner wall of the mounting groove 302. A limiting sleeve 306 is fixedly connected to the end of the support rod 305. A first slide 307 and a second slide 308 are respectively provided on the inner wall of the mounting groove 302. The two ends of the first slide 307 and the second slide 308 are slidably connected to the inner wall of the limiting grooves 303. A first pneumatic clamp 312 is fixedly connected to the top of both the first slide 307 and the second slide 308. The end of the support rod 305 passes through the second slide 308 and is slidably connected to it. The output end of the first hydraulic rod 304 is fixedly connected to the first slide 307. Two first slide rods 309 are fixedly connected to the inner side of the slide block 308. The ends of the two first slide rods 309 pass through the first slide block 307 and are slidably connected to it. A first spring 310 is sleeved on the outer circumference of each of the two first slide rods 309. A fixing sleeve 311 is fixedly connected to the ends of each of the two first slide rods 309. One end of the first spring 310 is fixedly connected to the first slide block 307, and the other end of the first spring 310 is fixedly connected to the second slide block 308. A second hydraulic rod 315 is fixedly connected to the top of the first slide block 307. A fixing plate 316 is fixedly connected to the output end of the second hydraulic rod 315. A fixing rod 314 is fixedly connected to the outer wall of the fixing plate 316. A second pneumatic clamp 313 is fixedly connected to the end of the fixing rod 314. The end of the fixing rod 314 is fixedly connected to the outer wall of the second pneumatic clamp 313.

[0043] By clamping the two corners of the opening of the homogenizing bag with the first pneumatic clamps 312 at the top of the first slide block 307 and the second slide block 308, the opening of the homogenizing bag is bent and closed due to the close distance between the two first pneumatic clamps 312. The opening of the homogenizing bag can be slightly opened manually, and the first slide block 307 is pushed towards the second slide block 308 by the first hydraulic rod 304. Since the second slide block 308 is not subject to sliding restriction at this time, and the sliding friction force on the second slide block 308 is less than the elastic force of the first spring 310, the first slide block 307 moves under the action of the elastic force of the first spring 310. Spring 310 drives the second slide 308 to move. At this time, the first slide 307 and the second slide 308 slide along the inner wall of the limiting groove 303. When the second slide 308 moves to the end of the limiting groove 303, the first hydraulic rod 304 continues to move, causing the first slide 307 to slide along the outer wall of the first slide rod 309 and compress the first spring 310. At this time, the first slide 307 moves closer to the second slide 308, so that the two first pneumatic clamps 312 move closer to each other, thereby expanding the top opening of the homogenizing bag again. At this time, the homogenizing bag is located below the injection tube 413, so that the nutrient solution can be accurately filled into the homogenizing bag.

[0044] The first hydraulic rod 304 drives the first slide block 307 to move in the opposite direction, causing the first slide block 307 to slide in the opposite direction along the first slide rod 309, allowing the first spring 310 to extend. At this time, the first slide block 307 and the second slide block 308 respectively drive the first pneumatic clamp 312 to move away from each other, thereby achieving the closure of the homogenizing bag opening. At this time, the second hydraulic rod 315 drives the fixed rod 314 to move through the fixed plate 316, and applies pressure to the homogenizing bag opening through the second pneumatic clamp 313. The fixed rod 314 drives the second pneumatic clamp 313 to move, thereby enabling the homogenizing bag to self-seal and close.

[0045] The first hydraulic rod 304 drives the first slide 307 to continue moving, and the first slide 307 drives the second slide 308 to move. When the first slide 307 slides along the support rod 305 to contact the limiting sleeve 306, the second slide 308 is blocked, and the first slide 307 and the second slide 308 move away from each other. At this time, the homogenizing bag is detached from the two first pneumatic clamps 312 and can fall into the collection seat 101.

[0046] Example 5 is based on Example 4, but differs from Example 4 in that it provides a filling device for nutrient solution in homogenized bags for seedling tissue culture; wherein, the filling component 4 is used for quantitative filling and infusion.

[0047] Please refer to Figure 1 , Figure 7 , Figure 8 , Figure 9 and Figure 10The filling assembly 4 includes a sealing sleeve 401, which is fixedly connected to the outer wall of the storage tank 104. A connecting sleeve 402 is fixedly connected to the bottom of the sealing sleeve 401. An exhaust pipe 404 is fixedly connected to the outer circumference of the sealing sleeve 401. A piston 405 is slidably connected to the inner wall of the sealing sleeve 401. A second sliding rod 406 is fixedly connected to the top of the piston 405. The top of the second sliding rod 406 passes through the sealing sleeve 401 and is slidably connected to it. The top of the second sliding rod 406 is fixedly connected to the connecting rod 204. An inlet pipe 407 is fixedly connected to the outer wall of the sealing sleeve 401 at an angle. The upper end of the inlet pipe 407 is fixedly connected to the storage tank 104. A first one-way valve 408 is fixedly connected to the outer circumference of the inlet pipe 407. An arc-shaped pipe 409 is fixedly connected to the outer wall of the connecting sleeve 402. A second one-way valve 410 is fixedly connected to the outer circumference of the arc-shaped pipe 409. A flow meter 419 is fixedly connected to the highest point of the outer wall of the arc-shaped pipe 409. A controller 411 is fixedly connected to the outer wall of the 9th tube. A connecting wire 412 is fixedly connected to the terminal of the controller 411. The connecting wire 412 is electrically connected to the flow meter 419 and the second check valve 410 respectively. The controller 411 is used to control the opening and closing of the second check valve 410. A liquid guide tube 403 is fixedly connected to the outer end of the arc-shaped tube 409. A sealing plug 415 is slidably connected to the inner wall of the liquid guide tube 403. A third sliding rod 416 is fixedly connected to the top of the sealing plug 415. The top of the third sliding rod 416 passes through the liquid guide tube 403 and is slidably connected to it. A pressure tube 418 is fixedly connected to the outer wall of the liquid guide tube 403. A second spring 417 is sleeved on the outer circumference of the third sliding rod 416. An injection tube 413 is fixedly connected to the bottom of the liquid guide tube 403. A third check valve 414 is fixedly connected to the outer circumference of the injection tube 413. One end of the second spring 417 is fixedly connected to the liquid guide tube 403, and the other end of the second spring 417 is fixedly connected to the sealing plug 415.

[0048] Multiple connecting rods 204 drive the second sliding rods 406 to slide, which in turn drive the piston 405 to slide along the inner wall of the sealing sleeve 401. When the piston 405 slides upward along the inner wall of the sealing sleeve 401, a suction force is generated inside the sealing sleeve 401, causing the nutrient solution inside the storage tank 104 to enter the connecting sleeve 402 through the inlet pipe 407 and the first one-way valve 408. When the piston 405 slides downward along the inner wall of the sealing sleeve 401, the connecting sleeve... The nutrient solution inside 402 enters the guide tube 403 through the arc-shaped tube 409. When the nutrient solution flows past the highest point of the arc-shaped tube 409, the flow meter 419 can measure the nutrient solution flowing into the guide tube 403. When the measured value reaches the filling standard of the bagged homogenizing bag, the controller 411 controls the second check valve 410 to close. The nutrient solution in the arc-shaped tube 409 near the guide tube 403 flows into the guide tube 403. At the same time as the second check valve 410 closes, the hydraulic pressure... Cylinder 201 drives piston 405 to move upward, controller 411 controls the second one-way valve 410 to open, and part of the nutrient solution remaining between the highest point of the inner wall of the arc-shaped tube 409 and the second one-way valve 410 flows into the connecting sleeve 402 through the arc-shaped tube 409 and the second one-way valve 410. At the same time, suction is generated inside the sealing sleeve 401, and the inlet pipe 407 again guides the nutrient solution inside the storage tank 104 into the connecting sleeve 402. Piston 405 moves downward, the second one-way valve 410 closes, and from... The cycle repeats continuously, connecting the pressure tube 418 to an external breathing pump. The breathing pump injects gas into the liquid guide tube 403, causing the sealing plug 415 to slide downwards along the liquid guide tube 403. This allows the nutrient solution inside the liquid guide tube 403 to be discharged through the injection tube 413. When the breathing pump exhausts gas, under the action of the second spring 417, the sealing plug 415 slides upwards along the liquid guide tube 403, and the piston 405 moves up and down once, causing the sealing plug 415 to move up and down.

[0049] Working principle: Nutrient solution is filled into storage tank 104 through filling tube 105, and bagged nutrient solution is collected through collection seat 101.

[0050] The hydraulic cylinder 201 pushes the connecting plate 202 to move, the connecting plate 202 drives multiple connecting arms 203 to move, and the multiple connecting arms 203 drive the connecting rod 204 to slide along the inner wall of the limit block 205.

[0051] Multiple connecting rods 204 drive the second slide rod 406 to slide, and multiple second slide rods 406 drive the piston 405 to slide along the inner wall of the sealing sleeve 401. When the piston 405 slides upward along the inner wall of the sealing sleeve 401, a suction force is generated inside the sealing sleeve 401, which causes the nutrient solution inside the storage tank 104 to enter the connecting sleeve 402 through the inlet pipe 407 and the first one-way valve 408.

[0052] When piston 405 slides downward along the inner wall of sealing sleeve 401, the nutrient solution inside connecting sleeve 402 enters the guide pipe 403 through arc-shaped tube 409. When the nutrient solution flows past the highest point of arc-shaped tube 409, flow meter 419 can measure the nutrient solution flowing into guide pipe 403. When the measured value reaches the filling standard of bagged homogenizing bag, controller 411 controls second check valve 410 to close, and the nutrient solution in arc-shaped tube 409 near the guide pipe 403 flows into guide pipe 403. As 410 closes, hydraulic cylinder 201 drives piston 405 to move upward, controller 411 controls second check valve 410 to open, and part of the nutrient solution that was stuck between the highest point of the inner wall of arc tube 409 and second check valve 410 flows into connecting sleeve 402 through arc tube 409 and second check valve 410. At the same time, suction is generated inside sealing sleeve 401, and inlet pipe 407 again introduces the nutrient solution inside storage tank 104 into connecting sleeve 402. Piston 405 moves downward, second check valve 410 closes, and so on in a reciprocating cycle.

[0053] The pressure tube 418 is connected to an external breathing pump. Gas is injected into the liquid guide tube 403 by the breathing pump, causing the sealing plug 415 to slide downward along the liquid guide tube 403. This allows the nutrient solution inside the liquid guide tube 403 to be discharged through the injection tube 413. When the breathing pump expels gas, the sealing plug 415 slides upward along the liquid guide tube 403 under the action of the second spring 417. The piston 405 moves up and down once, and the sealing plug 415 moves up and down.

[0054] By clamping the two corners of the opening of the homogenizing bag with the first pneumatic clamp 312 at the top of the first slide block 307 and the second slide block 308, the first slide block 307 is pushed towards the second slide block 308 by the first hydraulic rod 304. Since the second slide block 308 is not subject to sliding restriction at this time, and the sliding friction force on the second slide block 308 is less than the elastic force of the first spring 310, the first slide block 307 moves and drives the second slide block 308 to move through the first spring 310 under the action of the elastic force of the first spring 310. At this time, the first slide block 307... 07 and the second slide block 308 slide along the inner wall of the limiting groove 303. When the second slide block 308 moves to the end of the limiting groove 303, the first hydraulic rod 304 continues to move, causing the first slide block 307 to slide along the outer wall of the first slide rod 309 and compress the first spring 310. At this time, the first slide block 307 moves closer to the second slide block 308, causing the two first pneumatic clamps 312 to move closer to each other, thereby opening the top opening of the homogenizing bag. At this time, the homogenizing bag is located below the injection tube 413, thereby inserting the nutrient solution tube into the homogenizing bag.

[0055] The first hydraulic rod 304 drives the first slide block 307 to move in the opposite direction, causing the first slide block 307 to slide in the opposite direction along the first slide rod 309, allowing the first spring 310 to extend. At this time, the first slide block 307 and the second slide block 308 respectively drive the first pneumatic clamp 312 to move away from each other, thereby achieving the closure of the homogenizing bag opening. At this time, the second hydraulic rod 315 drives the fixed rod 314 to move through the fixed plate 316, and applies pressure to the homogenizing bag opening through the second pneumatic clamp 313. The fixed rod 314 drives the second pneumatic clamp 313 to move, thereby enabling the homogenizing bag to self-seal and close.

[0056] The first hydraulic rod 304 drives the first slide 307 to continue moving, and the first slide 307 drives the second slide 308 to move. When the first slide 307 slides along the support rod 305 to contact the limiting sleeve 306, the second slide 308 is blocked, and the first slide 307 and the second slide 308 move away from each other. At this time, the homogenizing bag is detached from the two first pneumatic clamps 312 and can fall into the collection seat 101.

[0057] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A filling device for nutrient solution in homogenized bags for seedling tissue culture, comprising an outer shell assembly (1), characterized in that: A drive assembly (2) is installed on the outer wall of the outer shell assembly (1), and a conveying assembly (3) is installed on the outer wall of the outer shell assembly (1). The drive assembly (2) is located above the conveying assembly (3). A plurality of filling assemblies (4) are fixedly connected to the outer wall of the outer shell assembly (1). The plurality of filling assemblies (4) are located between the drive assembly (2) and the conveying assembly (3). The drive assembly (2) is used to drive the filling assembly (4) to run. The filling assembly (4) is used for quantitative filling of infusion. The conveying assembly (3) is used to convey and support the homogenizing bag. The drive assembly (2) includes a hydraulic cylinder (201), the output end of which is fixedly connected to a connecting plate (202), and a plurality of connecting arms (203) are fixedly connected to the outer circumference of the connecting plate (202), and a connecting rod (204) is fixedly connected to the outer end of each of the plurality of connecting arms (203). The filling assembly (4) includes a sealing sleeve (401), which is fixedly connected to the outer wall of the liquid storage tank (104). A connecting sleeve (402) is fixedly connected to the bottom of the sealing sleeve (401). An exhaust pipe (404) is fixedly connected to the outer circumference of the sealing sleeve (401). A piston (405) is slidably connected to the inner wall of the sealing sleeve (401). A second sliding rod (406) is fixedly connected to the top of the piston (405). The top of the second sliding rod (406) passes through the sealing sleeve (401) and is slidably connected to it. 6) The top is connected and fixed to the connecting rod (204). The outer wall of the sealing sleeve (401) is inclinedly and fixedly connected to the inlet pipe (407). The upper end of the inlet pipe (407) is connected and fixed to the storage tank (104). The outer wall of the inlet pipe (407) is fixedly connected to the first one-way valve (408). The outer wall of the connecting sleeve (402) is fixedly connected to the arc-shaped pipe (409). The outer wall of the arc-shaped pipe (409) is fixedly connected to the second one-way valve (410). The highest point of the outer wall of the arc-shaped pipe (409) is fixedly connected to the flow meter (419). (419) A controller (411) is fixedly connected to the outer wall. A connecting wire (412) is fixedly connected to the terminal of the controller (411). The connecting wire (412) is electrically connected to the flow meter (419) and the second check valve (410) respectively. The controller (411) is used to control the opening and closing of the second check valve (410). A liquid guide tube (403) is fixedly connected to the outer end of the arc-shaped tube (409). A sealing plug (415) is slidably connected to the inner wall of the liquid guide tube (403). A third sliding rod (416) is fixedly connected to the top of the sealing plug (415). The top of the third slide rod (416) passes through the liquid guide tube (403) and is slidably connected to it. A pressure tube (418) is fixedly connected to the outer wall of the liquid guide tube (403). A second spring (417) is sleeved on the outer circumference of the third slide rod (416). An injection tube (413) is fixedly connected to the bottom of the liquid guide tube (403). A third one-way valve (414) is fixedly connected to the outer circumference of the injection tube (413). One end of the second spring (417) is connected and fixed to the liquid guide tube (403), and the other end of the second spring (417) is connected and fixed to the sealing plug (415).

2. The filling device for the nutrient solution in the homogenized bag for seedling tissue culture as described in claim 1, characterized in that: The outer shell assembly (1) includes a collection seat (101), a fixed seat (102) is fixedly connected to the top of the collection seat (101), a support column (103) is fixedly connected to the top of the fixed seat (102), a liquid storage tank (104) is fixedly connected to the top of the support column (103), and a filling tube (105) is fixedly connected to the outer wall of the liquid storage tank (104).

3. The filling device for the nutrient solution in the homogenized bag for seedling tissue culture as described in claim 1, characterized in that: Each of the connecting rods (204) has a slidable limit block (205) on its outer circumference, and the outer walls of the limit blocks (205) are respectively connected and fixed to the outer wall of the liquid storage tank (104).

4. The filling device for the nutrient solution in the homogenized bag for seedling tissue culture as described in claim 1, characterized in that: The conveying assembly (3) includes a conveying frame (301), the top of which is provided with an installation groove (302). Limiting grooves (303) are respectively provided on both sides of the inner wall of the installation groove (302). A first hydraulic rod (304) is fixedly connected to the inner wall of the installation groove (302). A support rod (305) is fixedly connected to the inner wall of the installation groove (302). A limiting sleeve (306) is fixedly connected to the end of the support rod (305). The inner wall of the installation groove (302) is divided into... A first slide (307) and a second slide (308) are provided. The two ends of the first slide (307) and the second slide (308) are slidably connected to the inner wall of the limiting groove (303). The top of the first slide (307) and the second slide (308) are fixedly connected to a first pneumatic clamp (312). The end of the support rod (305) passes through the second slide (308) and is slidably connected to it. The output end of the first hydraulic rod (304) is connected and fixed to the first slide (307).

5. The filling device for the nutrient solution in the homogenized bag for seedling tissue culture as described in claim 4, characterized in that: The second slide block (308) is fixedly connected to two first slide rods (309) on its inner side. The ends of the two first slide rods (309) pass through the first slide block (307) and are slidably connected to it. The outer circumference of the two first slide rods (309) is fitted with a first spring (310), and the ends of the two first slide rods (309) are fixedly connected with a fixing sleeve (311).

6. The filling device for the nutrient solution in the homogenization bag for seedling tissue culture as described in claim 5, characterized in that: One end of the first spring (310) is connected and fixed to the first slide (307), and the other end of the first spring (310) is connected and fixed to the second slide (308).

7. The filling device for the nutrient solution in the homogenized bag for seedling tissue culture as described in claim 5, characterized in that: The top of the first slide (307) is fixedly connected to a second hydraulic rod (315), the output end of the second hydraulic rod (315) is fixedly connected to a fixed plate (316), the outer wall of the fixed plate (316) is fixedly connected to a fixed rod (314), the end of the fixed rod (314) is fixedly connected to a second pneumatic clamp (313), and the end of the fixed rod (314) is connected and fixed to the outer wall of the second pneumatic clamp (313).

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