A vacuum preservation air exhaust valve mechanism for seaweed fertilizer tank

Abstract

The utility model belongs to the seaweed fertilizer production and processing technical field discloses a kind of vacuum preservation air extraction valve mechanisms of seaweed fertilizer tank, including the valve seat being arranged at the top opening of seaweed fertilizer tank body, the center of the valve seat is equipped with the ventilation main hole through the inside and outside of seaweed fertilizer tank body, main valve cover is covered on the valve seat, the inside of main valve cover is equipped with manual vacuum pump assembly and vacuum state indicating assembly;The manual vacuum pump assembly includes the piston cavity being arranged in the inside of main valve cover, and the inside of piston cavity is slidably equipped with piston.The utility model has realized manual vacuumization, without external power, with the characteristics of simple structure and easy operation, by being equipped with vacuum state indicating assembly in the inside of main valve cover, flexible indicating vesicle contracts or expands with the change of vacuum degree, and it is viewed through transparent indicating window, to provide clear, reliable vacuum state feedback, avoid the risk of fertilizer deterioration due to unable to judge whether vacuum is maintained.

Description

Technical Field

[0001] This utility model relates to the field of seaweed fertilizer production and processing technology, and in particular to a vacuum preservation and air extraction valve mechanism for seaweed fertilizer tanks. Background Technology

[0002] Seaweed fertilizer often needs to be sealed and stored after production and processing to maintain its activity and shelf life. Traditional seaweed fertilizer tanks mostly use ordinary sealing lids or simple exhaust valves, which have the following shortcomings: First, the sealing is not good, which can easily allow air to enter and cause the seaweed fertilizer to become damp or oxidized; second, they lack vacuum preservation function and cannot effectively extend the shelf life; third, it is impossible to visually monitor the vacuum status inside the tank, making it difficult to judge the preservation effect. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a vacuum preservation and air extraction valve mechanism for seaweed fertilizer tank, which has the characteristics of compact structure, good sealing performance, and manual vacuuming capability.

[0004] The technical solution adopted in this utility model is: a vacuum preservation and venting valve mechanism for a seaweed fertilizer tank, including a valve seat located at the top opening of the seaweed fertilizer tank body. The valve seat has a main vent hole at its center that connects the inside and outside of the seaweed fertilizer tank body. A main valve cover is fitted onto the valve seat. The main valve cover contains a manual vacuum pump assembly and a vacuum status indicator assembly. The manual vacuum pump assembly includes a piston chamber located inside the main valve cover. A piston is slidably mounted inside the piston chamber. A piston rod is located at the middle of one end of the piston, extending out of the top of the main valve cover. A pressing part is located at the top of the piston rod. A first one-way valve is located at the bottom of the piston chamber where it communicates with the main vent hole. An exhaust hole is located on the side wall of the piston chamber, and a second one-way valve is installed at the exhaust hole. The vacuum status indicator assembly includes a transparent indicator window located on the side wall of the main valve cover. A flexible indicator vesicle located at the transparent indicator window and communicating with the main vent hole is encapsulated inside the main valve cover. A locking and sealing cap for pressing down the main valve cover is threaded onto the outer wall of the valve seat.

[0005] Preferably, a first magnetic ring is embedded on the top surface of the valve seat, and a second magnetic ring with a different magnetic properties is embedded on the bottom surface of the main valve cover at a position corresponding to the first magnetic ring.

[0006] Preferably, a sealing gasket is provided at the connection between the valve seat and the main valve cover.

[0007] Preferably, it also includes a replaceable desiccant assembly that can be detachably installed inside the main vent. The replaceable desiccant assembly includes a desiccant box installed inside the main vent, the inside of which is filled with desiccant, and the desiccant box has ventilation micropores on both opposite sides.

[0008] Preferably, the inner wall of the main ventilation hole is connected to a fixing ring via multiple connecting rods, the outer wall of the desiccant box is threadedly connected to the inner wall of the fixing ring, and the top of the desiccant box is provided with a rotating handle.

[0009] Preferably, the inner top wall of the locking sealing cover is provided with an annular pressure ring, and the bottom outer wall of the main valve cover is provided with a load-bearing ring that matches the pressure ring. The inner wall of the locking sealing cover is threadedly connected to the outer wall of the load-bearing ring.

[0010] Preferably, the valve seat has several bubble-breaking needles at one end that extends into the seaweed fertilizer tank, and the end of the bubble-breaking needle away from the valve seat is sharp.

[0011] The beneficial effects of this utility model are:

[0012] 1. By installing a manual vacuum pump assembly inside the main valve cover, pressing the piston rod causes the piston to move in the piston chamber, thereby causing the first one-way valve to draw air and the second one-way valve to exhaust air. This process is repeated to gradually form a vacuum, achieving manual vacuuming without the need for external power. It features a simple structure and easy operation.

[0013] By incorporating a vacuum status indicator component inside the main valve cover, the flexible indicator vesicle contracts or expands as the vacuum level changes, and can be viewed through a transparent indicator window. This provides clear and reliable feedback on the vacuum status, avoiding the risk of fertilizer deterioration due to the inability to determine whether the vacuum is maintained.

[0014] A locking seal cap for pressing down the main valve cover is connected to the outer wall of the valve seat via threads. When the locking seal cap is tightened, it presses down on the main valve cover, enhancing the sealing of the connection between the valve seat and the main valve cover, preventing air leakage, and avoiding moisture or oxidation of the seaweed fertilizer.

[0015] 2. The desiccant comes into contact with and adsorbs the trace amounts of moisture remaining inside the tank through breathable micropores, continuously reducing the humidity inside the tank. It can effectively adsorb the trace amounts of moisture remaining inside the tank after vacuuming, preventing the growth of anaerobic bacteria or changes in fertilizer properties caused by condensation due to temperature fluctuations, resulting in better preservation and extending the active shelf life of seaweed fertilizer. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the valve seat and the retaining ring of this utility model;

[0021] Figure 5 This is a schematic diagram of the desiccant box structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Valve seat; 2. Main vent; 3. Main valve cover; 4. Manual vacuum pump assembly; 5. Vacuum status indicator assembly; 6. Piston chamber; 7. Piston; 8. Piston rod; 9. Pressing part; 10. First check valve; 11. Second check valve; 12. Transparent indicator window; 13. Flexible indicator vesicle; 14. First magnetic ring; 15. Second magnetic ring; 16. Sealing gasket; 17. Replaceable desiccant assembly; 18. Desiccant box; 19. Vent micropores; 20. Locking sealing cap; 21. Lower pressure ring; 22. Load-bearing ring; 23. Bubble-breaking needle; 24. Connecting rod; 25. Fixing ring; 26. Rotating handle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0024] like Figures 1-5As shown, this embodiment provides a vacuum preservation and venting valve mechanism for a seaweed fertilizer tank, including a valve seat 1 located at the top opening of the seaweed fertilizer tank body. The valve seat 1 has a central vent 2 penetrating the inside and outside of the seaweed fertilizer tank body. A main valve cover 3 is fitted onto the valve seat 1. The main valve cover 3 contains a manual vacuum pump assembly 4 and a vacuum status indicator assembly 5. The manual vacuum pump assembly 4 includes a piston chamber 6 located inside the main valve cover 3. A piston 7 is slidably mounted inside the piston chamber 6. A piston rod 8 extends from the top of the main valve cover 3 at the middle of one end of the piston 7. The top of the piston rod 8... The piston chamber 6 is equipped with a pressing part 9. A first one-way valve 10 is provided at the bottom of the piston chamber 6 where it communicates with the main vent 2. An exhaust port is provided on the side wall of the piston chamber 6, and a second one-way valve 11 is installed at the exhaust port. The vacuum status indicator assembly 5 includes a transparent indicator window 12 located on the side wall of the main valve cover 3. A flexible indicator vesicle 13 located at the transparent indicator window 12 and communicating with the main vent 2 is encapsulated inside the main valve cover 3. The outer wall of the valve seat 1 is threaded with a locking sealing cover 20 for pressing down the main valve cover 3. Pulling the pressing part 9 upward causes the pressing part 9 to drive the piston via the piston rod 8. As piston 7 moves upward, the pressure in the lower chamber of piston 6 decreases, forcing the first one-way valve 10 to open and drawing gas into piston 6. The second one-way valve 11 closes. When the pressing part 9 is pressed, it pushes piston rod 8 downward, which in turn pushes piston 7 downward along piston 6. The first one-way valve 10 closes, and the second one-way valve 11 opens, allowing the gas inside piston 6 to be discharged through the exhaust port. This repetitive motion creates a vacuum inside the tank, achieving manual vacuuming without external power. It features a simple structure and... Features include ease of operation; a vacuum status indicator component 5 is provided inside the main valve cover 3, and the flexible indicator vesicle 13 contracts or expands with changes in vacuum level, which can be viewed through the transparent indicator window 12, providing clear and reliable vacuum status feedback and avoiding the risk of fertilizer deterioration due to the inability to determine whether the vacuum is maintained; a locking sealing cover 20 for pressing down the main valve cover is connected to the outer wall of the valve seat 1 via threads. When the locking sealing cover 20 is tightened, it presses down on the main valve cover 3, enhancing the connection and sealing between the valve seat 1 and the main valve cover 3 and preventing air leakage.

[0025] The top surface of the valve seat 1 is embedded with a first magnetic ring 14, and the bottom surface of the main valve cover 3 is embedded with a second magnetic ring 15 with a magnetic property opposite to that of the first magnetic ring 14. A sealing gasket 16 is provided at the connection between the valve seat 1 and the main valve cover 3. The first magnetic ring 14 and the second magnetic ring 15 are attracted to each other due to their different shapes, generating a magnetic force to stably attach the main valve cover 3 to the valve seat 1, reducing misalignment and leakage, and making the sealing gasket 16 fit tightly with the main valve cover 3 and the valve seat 1 to achieve a preliminary seal.

[0026] It also includes a replaceable desiccant assembly 17 that can be detachably installed inside the main ventilation port 2. The replaceable desiccant assembly 17 includes a desiccant box 18 installed inside the main ventilation port 2. The desiccant box 18 is filled with desiccant. Both sides of the desiccant box 18 are provided with ventilation micropores 19. The desiccant is a color-indicating silica gel desiccant. By observing the color change of the desiccant, it is possible to intuitively determine whether the desiccant is saturated and needs to be replaced, thus realizing a maintenance reminder function. The desiccant comes into contact with and adsorbs the trace amounts of water vapor remaining in the tank through the ventilation micropores 19, continuously reducing the humidity inside the tank. It can effectively adsorb the trace amounts of water vapor remaining in the tank after vacuuming, preventing the growth of anaerobic bacteria or changes in fertilizer properties due to condensation caused by temperature fluctuations, resulting in better preservation and extending the active shelf life of the seaweed fertilizer.

[0027] The inner wall of the main ventilation hole 2 is connected to a fixing ring 25 via multiple connecting rods 24. The outer wall of the desiccant box 18 is threadedly connected to the inner wall of the fixing ring 25. The top of the desiccant box 18 is provided with a rotating handle 26. After opening the locking sealing cover 20 and the main valve cover 3, the desiccant box 18 is rotated by rotating the handle 26. The outer wall of the desiccant box 18 is detached from the inner wall of the fixing ring 25, which facilitates replacement after the desiccant fails.

[0028] The inner top wall of the locking sealing cover 20 is provided with an annular pressure ring 21, and the bottom outer wall of the main valve cover 3 is provided with a load-bearing ring 22 that matches the pressure ring 21. The inner wall of the locking sealing cover 20 is threadedly connected to the outer wall of the load-bearing ring 22. The pressure ring 21 and the load-bearing ring 22 cooperate to make the locking sealing cover 20 apply pressure evenly, avoid the main valve cover 3 from tilting, and improve the sealing reliability.

[0029] The valve seat 1 has several bubble-breaking needles 23 at one end that extends into the seaweed fertilizer tank. The end of the bubble-breaking needle 23 away from the valve seat 1 is sharp. The bubble-breaking needle 23 can puncture the bubbles in the tank, release the gas, and prevent the bubbles from affecting the vacuum extraction efficiency and uniformity.

[0030] During operation, pulling the pressing part 9 upwards causes the piston 7 to move upwards via the piston rod 8. As the pressure in the lower chamber of the piston cavity 6 decreases, the pressure inside the tank forces the first one-way valve 10 to open, drawing gas into the piston cavity 6. The second one-way valve 11 closes. Pressing the pressing part 9 pushes the piston rod 8 downwards, which in turn pushes the piston 7 downwards along the piston cavity 6. The first one-way valve 10 closes, and the second one-way valve 11 opens, allowing the gas inside the piston cavity 6 to be discharged through the exhaust port. This repetitive motion creates a vacuum inside the tank, achieving manual vacuuming. It requires external power and features a simple structure and easy operation. A vacuum status indicator component 5 is installed inside the main valve cover 3. The flexible indicator vesicle 13 contracts or expands with changes in vacuum level, and can be viewed through the transparent indicator window 12. This provides clear and reliable feedback on the vacuum status, avoiding the risk of fertilizer deterioration due to the inability to determine whether the vacuum is maintained. A locking seal cover 20 for pressing down the main valve cover is threaded onto the outer wall of the valve seat 1. When the locking seal cover 20 is tightened, it presses down on the main valve cover 3, enhancing the sealing between the valve seat 1 and the main valve cover 3 and preventing air leakage.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

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