Automatic humidity control device for pleurotus eryngii preservation
By using a humidification component that links a rotating support frame and a guide slope, combined with a PLC controller and a humidity sensor, the problem of uneven humidity during the preservation of king oyster mushrooms has been solved, achieving uniform humidification and precise humidity control, thus extending the shelf life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN JIATIAN AGRI DEV
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional spray humidification methods cause large humidity fluctuations during the preservation of king oyster mushrooms, with some areas becoming overly moist or losing moisture, making it difficult to achieve uniform humidification.
Design an automatic humidity-controlled king oyster mushroom preservation device. A rotating support frame drives a push rod to rise along a guide slope, pushing a piston to move upward inside a water spray pipe. The nozzle forms a directional spray to cover the placement frame area. Combined with a PLC controller and a humidity sensor, precise humidity control is achieved.
This method achieves uniform and stable humidity during the preservation of king oyster mushrooms, avoiding problems such as localized water loss or excessive moisture, and extending the shelf life.
Smart Images
Figure CN224306682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of king oyster mushroom preservation technology, and in particular to an automatic humidity-controlled king oyster mushroom preservation device. Background Technology
[0002] As an edible fungus with high moisture content, king oyster mushrooms require extremely stable humidity conditions during post-harvest storage. Traditional preservation techniques often employ cold storage or spray humidification, but spray humidification suffers from large humidity fluctuations and the formation of condensation or dry dead zones in localized areas, causing the king oyster mushrooms to easily lose moisture, shrink, or grow mold.
[0003] Specifically, although the spray humidification method can directly replenish moisture, the coverage of the nozzle is limited. The king oyster mushrooms far from the nozzle are difficult to be evenly covered by the water mist. It can be seen that the spray humidification method is prone to the phenomenon of some king oyster mushrooms being over-moistened while others are dehydrated. Utility Model Content
[0004] To address the shortcomings mentioned above in the background technology, this utility model provides an automatic humidity-controlled king oyster mushroom preservation device.
[0005] The present invention adopts the following technical solution:
[0006] An automatic humidity-controlled preservation device for king oyster mushrooms, the device comprising:
[0007] The cylinder has a storage chamber inside, an opening for taking out and putting in on one side of the cylinder, and a sealing plate is hinged to the opening for taking out and putting in on the cylinder.
[0008] A support frame is provided, which is arranged to rotate within the storage chamber, and multiple placement frames are fixed to the support frame from top to bottom. The placement frames are used to place the king oyster mushrooms to be stored.
[0009] Humidification assembly, the humidification assembly comprising:
[0010] A water spray pipe is vertically fixed in the storage chamber, and nozzles are installed on the water spray pipe at positions higher than the placement frame.
[0011] A piston assembly is disposed at the bottom of the water spray pipe with an interference fit, and the piston assembly is fixedly connected to a push rod extending downward to the outside of the water spray pipe.
[0012] A guide slope is fixed to the bottom surface of the storage chamber and corresponds to the bottom of the water spray pipe;
[0013] A plurality of push rods are provided on the side of the placement frame at the bottom of the support frame, and each push rod is restricted to moving up and down only relative to the placement frame;
[0014] When the support frame rotates and drives the push rod to rise along the guide slope, the push rod will drive the top rod to rise, causing the piston to move upward in the water spray pipe and squeeze the water flow out from the nozzle to the placement frame.
[0015] In one possible implementation, the humidification assembly further includes a push plate disposed between the top rod and the push rod, the push plate forming a vertical sliding constraint with the inner wall of the storage chamber; the upper and lower ends of the push rod are respectively provided with a first roller and a second roller; when the push rod rises along the guide slope, the first roller rises along the guide slope, causing the second roller to abut against and lift the push plate, and the push plate drives the top rod to move upward.
[0016] In one possible implementation, guide sleeves are fixed on both sides of the cylinder above the guide slope, and guide rods are fixed at both ends of the push plate. The two guide rods are respectively adapted to fit the two guide sleeves and slide along their axial direction.
[0017] In one possible implementation, the spray pipe is connected to an inlet pipe, which is connected to an external water source and equipped with a solenoid valve. The amount of water injected into the spray pipe during a single opening and closing cycle of the solenoid valve meets the stroke requirement for the piston to return to the bottom of the spray pipe.
[0018] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: When the support frame rotates and drives the push rod to move accordingly, when the push rod moves to the guide slope, it drives the push rod to rise along the slope trajectory, simultaneously pushing the top rod to lift, causing the piston to move upward within the spray pipe and squeeze the water flow within the spray pipe. The water in the spray pipe forms a directional spray through the nozzle, covering the corresponding placement frame area. In this working mode, every time the support frame rotates to the contact position between a certain top rod and the guide slope, the king oyster mushrooms in the area corresponding to that top rod can receive uniform humidification, completely solving the problem of localized water loss caused by fixed storage of king oyster mushrooms, thus preventing the phenomenon of some king oyster mushrooms being over-moistened while others are dehydrated during the humidification process. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention from a frontal view.
[0020] Figure 2 This is a side cross-sectional view of the present invention.
[0021] Figure 3 for Figure 1 A schematic diagram showing the concealed cylinder.
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the support frame.
[0023] Figure 5 This is a three-dimensional structural diagram of the water spray assembly.
[0024] Figure 6 for Figure 5 An enlarged schematic diagram of point A in the middle.
[0025] Figure 7 This is a three-dimensional structural diagram of the present invention from the rear view after the concealed cylinder body is installed.
[0026] Figure 8 for Figure 7 A magnified diagram of point B in the middle.
[0027] Figure 9 This is a cross-sectional view of the piston component connected to the bottom of the water spray pipe. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.
[0029] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0030] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.
[0031] The utility model provides an automatic humidity-controlled preservation device for king oyster mushrooms, as shown in the attached figure. Figures 1 to 3 As shown, the device includes a cylinder 1, a support frame 2, and a humidification assembly 3. The cylinder 1 contains a storage chamber 101, which is used to create a constant humidity environment. The support frame 2 rotates within the storage chamber 101. (Refer to the attached diagram.) Figure 4The support frame 2 has multiple placement frames 21 fixed from top to bottom, which are used to place the king oyster mushrooms to be stored. A loading / unloading port 102 is provided on one side of the cylinder 1, and a sealing plate 11 is hinged to the cylinder 1 at the loading / unloading port 102 to open and close the storage chamber 101. Preferably, the sealing plate 11 and the cylinder 1 can be connected by a pin or quick-release buckle to keep them closed. During operation, simply layer the king oyster mushrooms in the placement frames 21, and then close the sealing plate 11 to achieve a fully sealed state of the storage chamber 101, thereby ensuring precise control of the ambient humidity and extending the shelf life of the king oyster mushrooms.
[0032] Continue to refer to the appendix Figure 4 The support frame 2 includes a rotating shaft 22 and the aforementioned placement frames 21. The rotating shaft 22 passes through the center of each placement frame 21 and is connected and fixed to the placement frame 21. The cylinder 1 is fixed on a base frame 12, and the lower end of the rotating shaft 22 passes through the base frame 12, and is driven to rotate by a motor 23 fixed to the base frame 12. Furthermore, columns 13 are fixed at four diagonal positions on the inner wall of the cylinder 1 to support the top and bottom plates of the cylinder 1 and improve the overall structural stability of the cylinder 1.
[0033] As attached Figures 5 to 8 As shown, the humidification assembly 3 includes a water spray pipe 31, a piston 32, a guide slope 33, and a push rod 34. The water spray pipe 31 is vertically fixed inside the storage chamber 101. Specifically, multiple water spray pipes 31 can be fixed between two adjacent columns 13. The upper end of the water spray pipe 31 can pass through the top plate of the cylinder 1 and be fixedly connected to the top of the cylinder 1. In this embodiment, the fixing can be welded. Spray nozzles 311 are installed at positions on the water spray pipe 31 above the placement frame 21, with each nozzle 311 at a downward tilt angle aligned with the corresponding level of the placement frame 21. The piston 32 is interference-fitted into the bottom of the water spray pipe 31, and the piston 32 is fixedly connected to a push rod 321 extending downward to the outside of the water spray pipe 31. Preferably, as shown in the attached diagram... Figure 9 As shown, the bottom of the spray pipe 31 is connected to the sleeve 312. The connection method can be a spiral connection or a connection via a welded flange and bolts. A through hole is provided on the bottom surface of the sleeve 312. The piston 32 is precisely embedded into the inner cavity of the sleeve 312 through an interference fit, and the push rod 321 protrudes from the through hole on the bottom surface of the sleeve 312. This structure ensures that the piston 32 remains embedded in the spray pipe 31 and will not fall out. When the push rod 321 moves into the spray pipe 31, the piston 32 atomizes the water stored in the spray pipe 31 and sprays it out through the nozzle 311, thus humidifying the king oyster mushrooms.
[0034] The spray pipe 31 is connected to the inlet pipe 35, which is connected to an external water source and is equipped with a solenoid valve 36. During a single opening and closing cycle of the solenoid valve 36, the amount of water injected into the spray pipe 31 by the inlet pipe 35 is sufficient to meet the stroke requirements for the piston 32 to return to the bottom of the spray pipe 31. Specifically, during the opening phase of the solenoid valve 36, the inlet pipe 35 automatically injects water into the spray pipe 31, using water pressure to drive the piston 32 to move smoothly downward along the axial direction of the spray pipe 31. When the solenoid valve 36 completes its closing action, the injected water flow has precisely pushed the piston 32 back to the bottom limit position of the spray pipe 31, at which point the push rod 321 simultaneously reaches the preset downward termination point.
[0035] The guide slope 33 is fixed to the bottom surface inside the storage chamber 101, and the guide slope 33 corresponds to the bottom of the water spray pipe 31. Multiple push rods 34 are provided on the side of the placement frame 21 at the bottom of the support frame 2. Each push rod 34 is restricted to only moving up and down relative to the placement frame 21. Specifically, an L-shaped limiting plate 212 is fixed to the side of the placement frame 21, and a bushing 213 is fixed on the horizontal surface of the limiting plate 212. The center of the bushing 213 is a limiting hole with a regular hexagonal cross section. The push rod 34 is inserted into the limiting hole with clearance fit, thereby forming a structure in which the push rod 34 is restricted by the limiting hole to only moving up and down relative to the placement frame 21. When the support frame 2 rotates until the push rod 34 moves to the guide slope 33, it drives the push rod 34 to rise along the slope trajectory of the guide slope 33, simultaneously pushing the top rod 321 to rise. This causes the piston 32 to move upward within the water spray pipe 31 and squeeze the water flow within the water spray pipe 31. The water in the water spray pipe 31 is then sprayed through the nozzle 311 to form a directional spray covering the corresponding area of the placement frame 21. Based on this design, when the support frame 2 rotates to the contact position between a certain top rod 321 and the guide slope 33, the king oyster mushrooms in the corresponding area of that top rod 321 can receive uniform humidification treatment, completely solving the problem of localized water loss in stored king oyster mushrooms caused by spray humidification. This avoids the phenomenon of some king oyster mushrooms being overly moist while others are dehydrated during long-term storage. In addition, regarding system synchronization, the time interval between two adjacent push rods 34 of the support frame 2 passing through the guide slope 33 is perfectly matched with the single opening and closing cycle of the solenoid valve 36, ensuring that the water spray pipe 31 is replenished with water in a timely manner after each spraying operation, forming a continuous and stable automated humidification cycle.
[0036] Preferably, fixed partitions 211 can be arranged in a circumferential array inside the placement frame 21 to form multiple placement slots at intervals. Push rods 34 are provided in the middle of the corresponding placement slots on the outer wall of the placement frame 21 so that directional humidification treatment is formed on each placement slot during the rotation of the support frame 2.
[0037] Furthermore, the control system of this invention uses a PLC controller as the core control unit, coordinating the collaborative operation of the drive motor 23 and the solenoid valve 36 through programming logic. A high-precision humidity sensor is integrated into the inner wall of the storage chamber 101. This sensor monitors ambient humidity data in real time and converts the humidity parameters into electrical signals, feeding them back to the control system. When the humidity in the storage chamber 101 is detected to be lower than the set minimum threshold, the system automatically maintains the continuous operation of the motor 23 and opens and closes the solenoid valve 36 according to a preset cycle. Conversely, when the ambient humidity is detected to be higher than the set maximum threshold, the control system controls the motor 23 and the solenoid valve 36 to stop operating, preventing excessive humidity in the storage chamber 101 and thus achieving precise humidity control within the storage chamber 101. The rotation stroke time between adjacent push rods 34 of the support frame 2 and the single opening and closing cycle of the solenoid valve 36 are precisely correlated through the control system, ensuring that the water spray pipe 31 can be replenished with water in a timely manner after each spraying operation, providing sufficient water for the next round of pressurized spraying driven by the piston of the push rod 321. This closed-loop control mechanism achieves deep coupling between dynamic humidity compensation and equipment operating rhythm, ensuring that the king oyster mushrooms are always kept in the optimal humidity environment during the preservation process.
[0038] The humidification assembly 3 also includes a push plate 37, which is disposed between the push rod 321 and the push rod 34. The push plate 37 and the inner wall of the storage chamber 101 form a vertical sliding constraint. The constraint method can be that guide sleeves 38 are fixed on both sides of the inner wall of the cylinder 1 above the guide slope 33. The two guide sleeves 38 can be fixed to the columns 13 on both sides of the guide slope 33 respectively. Guide rods 371 are fixed at both ends above the push plate 37. The two guide rods 371 pass through the two guide sleeves 38 and slide along their axial direction. The top of the guide rods 371 is fixed with a limiting part 372. The outer diameter of the limiting part 372 is larger than the hole diameter of the guide sleeve 38, so as to ensure that the push plate 37 is supported and suspended by the limiting plate when it descends to the limit position.
[0039] When the push rod 34 rises along the guide slope 33, it pushes the top plate 37 upward, which in turn lifts the top rods 321 at the bottom of each spray pipe 31. This causes the piston parts 32 of each spray pipe 31 to rise simultaneously, driving each spray pipe 31 to spray water mist simultaneously, significantly increasing the humidification coverage area per unit time and thus improving humidification efficiency. Furthermore, the push rod 34 is equipped with a first roller 341 and a second roller 342 at its upper and lower ends, respectively. When the push rod 34 rises along the guide slope 33, the first roller 341 rolls upward along the guide slope 33 to reduce friction loss, while the second roller 342 simultaneously lifts the top plate 37, thereby driving all the top rods 321 of the spray pipes 31 to rise synchronously. In this structure, the first roller 341 and the second roller 342 complete the mechanical transmission, reducing the movement resistance of the push rod 34 and fundamentally improving the overall smoothness of operation of this invention.
[0040] In summary, this invention constructs a closed, constant-humidity storage chamber 101 using a cylindrical body 1. The support frame 2 is driven to rotate by a motor 23, and the placement frame 21, which holds the king oyster mushrooms in layers, moves synchronously with the rotating shaft 22. The core of the humidification component 3 includes a water spray pipe 31, a piston 32, and a guide slope 33. The water spray pipe 31 is periodically replenished with water via a solenoid valve 36. The piston 32 is linked by a push rod 321. When the push rod 34 rises along the guide slope 33, it drives the push rod 321 to lift the piston 32, causing the nozzle 311 to atomize and spray water. The control system and humidity sensor achieve closed-loop regulation. When the humidity is insufficient, rotation and spraying are triggered in tandem; when the humidity is too high, rotation and spraying are paused. The entire system, through mechanical linkage, intelligent humidity control, and modular structure, achieves automated, uniform humidity control, precise humidity maintenance, and long-term freshness preservation of king oyster mushrooms, combining high efficiency and automation advantages.
[0041] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.
Claims
1. An automatic humidity-controlled preservation device for king oyster mushrooms, characterized in that, The device includes: The cylinder has a storage chamber inside, an opening for taking out and putting in on one side of the cylinder, and a sealing plate is hinged to the opening for taking out and putting in on the cylinder. A support frame is provided, which is arranged to rotate within the storage chamber, and multiple placement frames are fixed to the support frame from top to bottom. The placement frames are used to place the king oyster mushrooms to be stored. Humidification assembly, the humidification assembly comprising: A water spray pipe is vertically fixed in the storage chamber, and nozzles are installed on the water spray pipe at positions higher than the placement frame. A piston assembly is disposed at the bottom of the water spray pipe with an interference fit, and the piston assembly is fixedly connected to a push rod extending downward to the outside of the water spray pipe. A guide slope is fixed to the bottom surface of the storage chamber and corresponds to the bottom of the water spray pipe; A plurality of push rods are provided on the side of the placement frame at the bottom of the support frame, and each push rod is restricted to moving up and down only relative to the placement frame; When the support frame rotates and drives the push rod to rise along the guide slope, the push rod will drive the top rod to rise, causing the piston to move upward in the water spray pipe and squeeze the water flow out from the nozzle to the placement frame.
2. The apparatus as claimed in claim 1, characterized in that, The humidification assembly also includes a push plate, which is disposed between the top rod and the push rod. The push plate forms a vertical sliding constraint with the inner wall of the storage chamber. The upper and lower ends of the push rod are respectively provided with a first roller and a second roller. When the push rod rises along the guide slope, the first roller rises along the guide slope, causing the second roller to abut against and lift the push plate, and the push plate drives the top rod to move upward.
3. The apparatus as described in claim 2, characterized in that, Guide sleeves are fixed on both sides of the cylinder above the guide slope, and guide rods are fixed at both ends of the push plate. The two guide rods are respectively adapted to fit the two guide sleeves and slide along their axial direction.
4. The apparatus as claimed in claim 1, characterized in that, The water spray pipe is connected to the water inlet pipe, which is connected to an external water source and equipped with a solenoid valve. The amount of water injected into the water spray pipe in a single opening and closing cycle of the solenoid valve meets the stroke requirements for the piston to return to the bottom of the water spray pipe.