A device for cultivating bok choy

Abstract

This utility model discloses a cultivation device for bok choy, including a workbench with a heating cylinder and a drainage tank, an inner cylinder, a stirring mechanism, and a lifting mechanism. The inner cylinder has water holes, the inner wall of the heating cylinder has a groove, and the outer wall of the inner cylinder has a protrusion connected to the groove, maintaining a certain distance between the outer bottom surface of the inner cylinder and the inner bottom surface of the heating cylinder, and a certain distance between the outer wall of the inner cylinder and the inner wall of the heating cylinder. The lifting mechanism is connected to the workbench, and the stirring mechanism is connected to the lifting mechanism, positioned directly above the inner cylinder. This utility model solves the problems of manual seed stirring and seed loss during the cultivation of bok choy.

Description

Technical Field

[0001] This utility model belongs to the field of crop cultivation technology, and specifically relates to a cultivation device for bok choy. Background Technology

[0002] In the cultivation of bok choy, seed pretreatment is a key step that determines the germination rate and subsequent growth status. Its core requirements are to break the seed dormancy period, remove surface mucus, and optimize water absorption efficiency through precise temperature control, physical washing, and moisture regulation, thus laying the foundation for subsequent cultivation.

[0003] Seeds are pre-treated before sowing, and the amount of seeds varies depending on the sowing method. Broadcasting is the most basic and simplest sowing method. The key is to directly and evenly scatter the seeds on the prepared soil surface without pre-drilling furrows or holes. The seeds are distributed randomly in the field, without needing to form fixed rows. Ridge sowing involves piling soil into straight ridges, with furrows naturally forming between the ridges. Seeds are then sown along these pre-drilled ridges, resulting in a long, narrow distribution of seeds in the soil. As the seeds mature, they form neat rows, like the common rows of small bok choy. Hill sowing involves digging small pits ("holes") in the field with fixed row and plant spacing, and sowing seeds in each pit, resulting in a uniformly distributed crop. For rainy, heavy, low-lying, and waterlogged areas, ridge sowing is chosen to balance waterlogging prevention, drainage to avoid seed and root rot, growth promotion, and ease of management. In actual planting, when planting 100 mu (approximately 6.7 hectares) of bok choy (such as Shanghai bok choy, Chinese cabbage, etc.) using ridge sowing, the total seed quantity needs to be calculated comprehensively based on both the "seed quantity per mu" and "actual planting variables." Based on experience, the core seed quantity range for 100 mu of bok choy using ridge sowing is 15-25 kg, with the most common actual usage being around 20 kg (corresponding to 200 grams per mu, medium germination rate, and conventional density).

[0004] Therefore, it is generally necessary to pre-treat about 20 kg of bok choy seeds for planting 100 mu (approximately 6.7 hectares) of bok choy. Bok choy seed pre-treatment is usually done manually. The specific process is as follows: Place the seeds in a heated container with hot water at 50-55℃. Stir continuously to ensure even heating while gradually lowering the water temperature to room temperature. Soak for 6-8 hours, stirring every 1-2 hours to remove surface mucus and prevent it from hindering water absorption and respiration. After soaking for 6-8 hours, manually remove the seeds from the water, spread them out to air dry for 15-20 minutes until surface moisture evaporates, and finally wrap them in a clean, damp cloth to retain moisture.

[0005] Currently, manual stirring relies on operators to manually stir the seeds to room temperature. Because it's manual, prolonged stirring leads to fatigue and makes it difficult to control the uniformity of the stirring rate. This can result in uneven heating of seeds, with some seeds losing activity due to prolonged exposure to high temperatures, or the water temperature cooling rate becoming unbalanced due to insufficient stirring, deviating from the optimal pretreatment temperature range. Furthermore, existing pretreatment processes lack dedicated seed-supporting structures, requiring manual retrieval of seeds after soaking, which can easily lead to seed loss or damage. Utility Model Content

[0006] The purpose of this invention is to provide a cultivation device for bok choy, thereby overcoming the problems of manual seed stirring and seed loss during the cultivation of bok choy. The specific technical solution is as follows: A device for cultivating bok choy includes a workbench, on which a heating cylinder and a drainage tank are provided, and also includes an inner cylinder, a stirring mechanism and a lifting mechanism. The inner cylinder is provided with water holes, the inner wall of the heating cylinder is provided with grooves, and the outer wall of the inner cylinder is provided with protrusions. The protrusions are connected to the grooves, so that the outer bottom surface of the inner cylinder and the inner bottom surface of the heating cylinder are kept at a certain distance, and the outer wall of the inner cylinder and the inner wall of the heating cylinder are kept at a certain distance. The lifting mechanism is connected to the workbench, the agitating mechanism is connected to the lifting mechanism, and the agitating mechanism is located directly above the inner cylinder.

[0007] Preferably, a drain pipe is connected to the heating cylinder area between the inner bottom surface of the heating cylinder and the outer bottom surface of the inner cylinder, the drain pipe extends to the drainage pool, and a water inlet pipe is provided on the workbench.

[0008] Preferably, the inner cylinder includes a first cylinder section and a second cylinder section. The top end of the first cylinder section is formed with an installation ring. The protrusion is connected to the first cylinder section, and the top of the protrusion is connected to the installation ring. The bottom surface and outer wall of the second cylinder section are provided with the water holes. The heating cylinder has a mounting groove on its top, and the mounting ring is installed in the mounting groove.

[0009] Preferably, the drainage pool is provided with a support plate, the support plate is provided with a placement groove, and the bottom of the placement groove is provided with a through hole penetrating the support plate.

[0010] Preferably, a bag holder is connected to the drainage pool, and a wet cloth bag is placed on the bag holder.

[0011] Preferably, the agitation mechanism includes an arc-shaped blade, a rotating shaft, a positioning sleeve, and a drive motor. The rotating shaft is provided with a slot, and the side of the arc-shaped blade is engaged in the slot. The positioning sleeve is provided with an opening, and after the positioning sleeve is connected to the rotating shaft, the end of the arc-shaped blade is engaged in the opening. The rotating shaft is connected to the drive motor.

[0012] Preferably, the lifting mechanism includes a mounting plate, with mounting blocks connected to both ends of the mounting plate, a screw connecting the mounting blocks, a first nut and a second nut connected to the screw, a first slider connected to the first nut, a horizontal support rod and a first guide block connected to the first slider, a second slider connected to the second nut, an inclined support rod and a second guide block connected to the second slider, and the horizontal support rod and the inclined support rod being connected. A guide rod is connected between the mounting blocks, and guide holes are provided on the first slider and the second slider, with the guide rod passing through the guide holes; The mounting plate is provided with a sliding groove, and the first guide block and the second guide block are respectively disposed in the sliding groove, wherein a connecting rod is connected between the first guide block and the second guide block; The agitation mechanism is connected to the horizontal support rod.

[0013] Compared with existing technologies, this utility model has the following beneficial effects: 1. The stirring mechanism is connected to the lifting mechanism, which allows the stirring mechanism to extend into the inner cylinder to adjust the stirring rate. This avoids uneven stirring caused by operator fatigue due to prolonged exposure, ensuring uniform heating of seeds throughout the entire process from 50℃-70℃ hot water to room temperature. This effectively prevents some seeds from losing viability due to prolonged exposure to high temperatures. Furthermore, the mating structure of the grooves on the inner wall of the heating cylinder and the protrusions on the outer wall maintains a certain distance between the bottom and outer walls of the inner cylinder and the bottom and inner walls of the heating cylinder, forming an annular gap. Water holes on the inner cylinder allow for slight circulation of water within this annular gap. This annular gap ensures even heat transfer from the heating cylinder to the inner cylinder and also helps regulate the rate of water temperature drop, preventing direct contact between seeds and the inner wall of the heating cylinder. This avoids localized heat accumulation or excessive heat loss, ensuring uniform heating and dissipation, creating a stable pretreatment environment for the seeds, and significantly improving their germination potential.

[0014] 2. During manual pretreatment, the seeds need to be manually stirred every 1-2 hours to remove the mucus on the seed surface. This device uses a stirring mechanism to replace manual stirring. During continuous stirring, the water in the inner cylinder can form a stable flow. The friction between the water flow and the seeds can simulate the effect of manual washing, remove the mucus on the seed surface, effectively eliminate the mucus's obstruction to seed water absorption and respiration, accelerate the seed water absorption rate, and improve the efficiency of seed pretreatment.

[0015] 3. The inner cylinder of this device serves as a dedicated seed-bearing component. During pretreatment, seeds are placed directly into the inner cylinder, and water is connected to the heating cylinder through water holes to meet the soaking requirements. The water hole diameter is designed according to the seed size of bok choy, allowing for the sifting out of old seeds during agitation. After soaking, no manual sifting or retrieval from the water is required; simply removing the inner cylinder from the heating cylinder achieves rapid separation of seeds from the water. The independent structural design of the inner cylinder not only simplifies the retrieval operation but also minimizes seed loss and spillage during the retrieval process, ensuring precise seed dosage and meeting the large-scale needs of pretreating approximately 20 kg of seeds for 100 mu (approximately 6.7 hectares) of bok choy cultivation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a front view of the cultivation device of this utility model; Figure 2 This is a side view of the cultivation device of this utility model; Figure 3 This is a top view of the cultivation device of this utility model; Figure 4 This is a structural diagram of the heating cylinder and inner cylinder of this utility model; Figure 5 This is a structural diagram of the stirring mechanism of this utility model; Figure 6 This is a structural diagram of the lifting mechanism of this utility model; Figure 7 This is a structural diagram of the lifting mechanism of this utility model; Figure 8 This is a structural diagram of the lifting mechanism of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a device for cultivating bok choy includes a workbench 1, on which a heating cylinder 2 and a drainage tank 6 are provided, as well as an inner cylinder 3, a stirring mechanism 4 and a lifting mechanism 5.

[0023] The inner cylinder 3 is provided with a water hole 30, the inner wall of the heating cylinder 2 is provided with a groove 20, and the outer wall of the inner cylinder 3 is provided with a protrusion 31. The protrusion 31 is connected to the groove 20, so that the outer bottom surface of the inner cylinder 3 and the inner bottom surface of the heating cylinder 2 are kept at a certain distance, and the outer wall of the inner cylinder 3 and the inner wall of the heating cylinder 2 are kept at a certain distance.

[0024] The lifting mechanism 5 is connected to the workbench 1, the stirring mechanism 4 is connected to the lifting mechanism 5, and the stirring mechanism 4 is located directly above the inner cylinder 3.

[0025] A drain pipe 7 is connected to the area of ​​the heating cylinder 2 between the inner bottom surface of the heating cylinder 2 and the outer bottom surface of the inner cylinder 3. The drain pipe 7 extends to the drainage pool 6. A water inlet pipe 8 is provided on the workbench 1.

[0026] 50-55℃ is the safe activation temperature for bok choy seeds. Below 50℃, the sterilization and seed dormancy breaking effects are weakened; temperatures above 55℃, especially above 60℃, will scald the seed embryo, directly leading to a significant decrease in germination rate or even seed necrosis. In existing technology, a heating cylinder 2 with automatic temperature control is used. The heating cylinder 2 is placed on a workbench 1, which is mounted close to a wall and equipped with a drainage tank 6 to drain the soaking water from the heating cylinder 2.

[0027] The heating cylinder 2 is equipped with a heating element for heating water to a temperature of 50-55℃. In the current operation, the water is generally heated before the seeds of bok choy are put into the heating cylinder 2. The seeds of bok choy will directly contact the inner wall and bottom of the heating cylinder, and at the same time, they will contact the heating element on the bottom surface of the heating cylinder 2. The temperature of the heating element itself is higher than the temperature of the water, which will cause the activity of the bok choy seeds in the layer in contact with the bottom surface to be damaged.

[0028] In this invention, an inner cylinder 3 is provided inside the heating cylinder 2. The seeds of bok choy are placed in the inner cylinder 3. During use, the inner cylinder 3 is installed inside the heating cylinder 2, and water is added to it. After the heating cylinder 2 heats the water to a specified temperature, the seeds of bok choy are placed into the inner cylinder 3. The seeds of bok choy come into direct contact with the heated water, avoiding contact between the seeds of bok choy and the cylinder wall of the heating cylinder 2 or the heating element.

[0029] In the prior art, the heating cylinder 2 is equipped with a drain pipe 7, which drains water into the drainage pool 6. In this invention, after the inner cylinder 3 is installed, the outer bottom surface of the inner cylinder 3 is positioned above the drain pipe 7, and a certain space is formed between the bottom of the inner cylinder 3 and the inner wall of the heating cylinder 2. The bottom of the inner cylinder 3 does not directly block the drain pipe 7. The drain outlet of the drain pipe 7 is located in the lowest area inside the heating cylinder 2, and the inner cylinder 3 will not obstruct or block the drainage path.

[0030] See Figure 4 The inner cylinder 3 includes a first cylinder section 32 and a second cylinder section 33. The top end of the first cylinder section 32 is formed with an installation ring 34. The protrusion 31 is connected to the first cylinder section 32, and the top of the protrusion 31 is connected to the installation ring 34. The bottom surface and outer wall of the second cylinder section 33 are provided with water holes 30. The top of the heating cylinder 2 is provided with an installation groove 21, and the installation ring 34 is installed in the installation groove 21.

[0031] In this utility model, the heating cylinder 2 is existing technology. This utility model improves the structure of the heating cylinder 2 by machining grooves 20 and mounting slots 21 on the original heating cylinder 2. Both are machined at the open end of the heating cylinder 2, which is simple and easy to operate. There is no need to change other structures of the heating cylinder 2, such as the heating element and its connection method.

[0032] In this design, the diameter of the first cylindrical section 32 is larger than that of the second cylindrical section 33. When the inner cylinder 3 is installed on the heating cylinder 2, an annular gap exists between the outer wall of the second cylindrical section 33 and the inner wall of the heating cylinder 2, allowing water to flow through the water holes 30. The aperture of the water holes 30 is typically set according to the seed size of the bok choy, allowing water to flow and simultaneously filtering out old seeds during the stirring process. Bok choy seeds, such as those of Chinese cabbage and Shanghai bok choy, are nearly round or oval, with a diameter of approximately 1.5-2.5 mm. Fresh seeds are plump, while old seeds are slightly smaller but usually not less than 1.2 mm. The aperture of the water holes 30 is set to 1.3 mm, effectively intercepting plump fresh seeds and removing old seeds during the stirring process. The old seeds are drained into a drainage pool through a drain pipe, where a net is installed to intercept further old seeds.

[0033] See Figure 3 The drainage pool 6 is provided with a support plate 9, the support plate 9 is provided with a placement groove 90, and the bottom of the placement groove 90 is provided with a through hole 900 penetrating the support plate 9.

[0034] A bag holder 10 is connected to the drainage pool 6, and a wet cloth bag 11 is placed on the bag holder 10.

[0035] The placement trough 90 is circular in the middle and open at both ends. After the bok choy seeds have soaked, the inner cylinder 3 is removed from the heating cylinder 2. During the removal and upward movement of the inner cylinder 3, the seeds are manually stirred to agitate the water and seeds, allowing the water in the inner cylinder 3 to pass smoothly through the water holes 3, leaving only the seeds in the inner cylinder 3. Then, the bok choy seeds are poured out of the inner cylinder 3 and placed in the placement trough 90 on the support plate 9 to spread out and dry for 15-20 minutes to allow the surface moisture to evaporate. After drying, the seeds are then poured into the damp cloth bag 11. The placement trough 90 has openings at both ends to facilitate the transfer of the dried seeds from the placement trough 90 into the damp cloth bag 11.

[0036] See Figure 5 and Figure 6 The stirring mechanism 4 includes an arc-shaped blade 41, a rotating shaft 42, a positioning sleeve 43, and a drive motor 44. The rotating shaft 42 is provided with a slot 420, and the side of the arc-shaped blade 41 is engaged in the slot 420. The positioning sleeve 43 is provided with an opening 430. After the positioning sleeve 43 is connected to the rotating shaft 42, the end of the arc-shaped blade 41 is engaged in the opening 430. The rotating shaft 42 is connected to the drive motor 44.

[0037] In one optional implementation, the arc-shaped blade 41 is made of silicone material to avoid scratching the seed coat. The drive motor 44 is configured with an appropriate speed to balance the uniformity of stirring and seed protection, set to 30-60 rpm. Specifically, in the initial stirring of the warm water, the speed is set to 40-60 rpm. When the seeds are first poured in, it is necessary to break up the pile and quickly allow the seeds to come into even contact with the warm water. The stirring time is about 5 minutes. Then the speed is reduced to 30-35 rpm and the stirring time is 30 minutes to allow the water temperature to drop from 55℃ to 30-35℃. Then the stirring is stopped and the water is allowed to cool to room temperature naturally.

[0038] The curved blades (41) are made of silicone and are designed to ensure even heating and cooling of the seeds during the pretreatment of bok choy seeds, rather than forcefully agitating the liquid. The soft silicone curved blades have a suitable hardness range of 30-50 HA on the Shore A scale, providing moderate hardness. This allows them to maintain their curved shape during rotation, propelling the water flow without being too soft to hold water. Slight deformation also adapts to the water flow direction, reducing resistance and preventing motor overload. The soft material cushions impacts with the seeds; even when the blades contact the seeds, the elastic deformation absorbs the impact, resulting in a much lower seed coat damage rate compared to hard blades, thus balancing effective agitation with seed coat protection.

[0039] Meanwhile, because the curved blades are made of silicone material, the curved blades 41 are engaged with the grooves 420 of the rotating shaft on the side and the openings 430 of the positioning sleeve at the end, forming a stable structure with fixed ends and a curved middle for stress distribution. During rotation, the blades will not fall off due to water flow resistance or bend excessively to the side, and can continuously transmit driving force to ensure the stirring effect. It also facilitates the installation, maintenance and replacement of the curved blades 41.

[0040] In some alternative embodiments, the arc-shaped blade 41 may be a rigid arc-shaped blade.

[0041] See Figure 5 , Figure 6 and Figure 7 The lifting mechanism 5 includes a mounting plate 51, with mounting blocks 52 connected to both ends of the mounting plate 51. A screw 53 is connected between the mounting blocks 52. A first nut 541 and a second nut 542 are connected to the screw 53. A first slider 551 is connected to the first nut 541. A horizontal support rod 56 and a first guide block 571 are connected to the first slider 551. A second slider 552 is connected to the second nut 542. An inclined support rod 58 and a second guide block 572 are connected to the second slider 552. The horizontal support rod 56 is connected to the inclined support rod 58.

[0042] A guide rod 59 is connected between the mounting blocks 52. The first slider 551 and the second slider 552 are provided with guide holes 550, and the guide rod 59 passes through the guide hole 550.

[0043] The mounting plate 51 is provided with a sliding groove 510, and the first guide block 571 and the second guide block 572 are respectively disposed in the sliding groove 510, wherein a connecting rod 50 connects the first guide block 571 and the second guide block 572. The agitation mechanism 4 is connected to the horizontal support rod 56.

[0044] See Figure 8 The horizontal support rod 56 and the inclined support rod 58 are integrally formed. The horizontal support rod 56 includes a rod portion 561 and a connecting portion 562 integrally formed with the rod portion 561. The connecting portion 562 has an arc-shaped opening and a threaded hole. The first slider 551 includes a mountain-shaped sliding portion 5511 and a supporting portion 5512, which are integrally formed. The arc-shaped opening of the connecting portion 562 of the horizontal support rod 56 is embedded in the mountain-shaped sliding portion 5511, and the bottom surface of the connecting portion 562 contacts the top surface of the supporting portion 5512, and a stable connection is achieved by screws.

[0045] See Figure 6 , Figure 7 and Figure 8 In this configuration, the first slider 551 moves up and down on the guide rod 59 under the drive of the screw. Since the support part 5512 is connected to the connecting part 562, and the support part 5512 is located at the lower end of the sliding part 5511, the connection between the first slider 551 and the horizontal support rod 56 is more stable. Therefore, see [reference needed]. Figure 7 The first nut 541 is connected to the sliding part 5511. The support part 5512 has a through hole with a diameter larger than the outer diameter of the screw. The screw will not contact the support part 5512 when it rotates. The screw is connected to the first nut 541.

[0046] The structural configuration and connection method of the inclined support rod 58 and the second slider 552 are the same as those of the horizontal support rod 56 and the first slider 551 described above.

[0047] A connecting rod 50 connects the first guide block 571 on the first slider 551 and the second guide block 572 on the second slider 552, thereby achieving indirect coordination between the first slider 551 and the second slider 552, ensuring that the height difference between the two sliders is kept at a small value, avoiding tilting and lifting of the stirring mechanism 4, and further ensuring the stability of stirring.

[0048] The guide rod 59 passes through the guide holes 550 of the first slider 551 and the second slider 552, forming a lateral rigid constraint. The slider slides vertically along the guide rod. The groove 510 of the mounting plate 51 cooperates with the first guide block 571 and the second guide block 572 to further form a lateral rigid constraint, preventing the stirring mechanism 4 from deviating from the center of the barrel due to the shaking of the slider, avoiding the problem of the blade scraping the barrel wall or the expansion of the stirring dead angle, so that the stirring mechanism 4 always runs in the vertical direction.

[0049] The screw 53 can be driven by either an electric drive (drive motor) or a manual drive.

[0050] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A cultivation device for small green vegetables, comprising a workbench (1) provided with a heating cylinder (2) and a drainage pool (6), characterized in that, It also includes an inner cylinder (3), an agitation mechanism (4), and a lifting mechanism (5); The inner cylinder (3) is provided with water holes (30), the inner wall of the heating cylinder (2) is provided with grooves (20), and the outer wall of the inner cylinder (3) is provided with protrusions (31). The protrusions (31) are connected to the grooves (20), so that the outer bottom surface of the inner cylinder (3) and the inner bottom surface of the heating cylinder (2) are kept at a certain distance, and the outer wall of the inner cylinder (3) and the inner wall of the heating cylinder (2) are kept at a certain distance. The lifting mechanism (5) is connected to the workbench (1), the stirring mechanism (4) is connected to the lifting mechanism (5), and the stirring mechanism (4) is located directly above the inner cylinder (3).

2. The device for cultivating bok choy according to claim 1, characterized in that, A drain pipe (7) is connected to the area of ​​the heating cylinder (2) between the inner bottom surface of the heating cylinder (2) and the outer bottom surface of the inner cylinder (3). The drain pipe (7) extends to the drainage pool (6). A water inlet pipe (8) is provided on the workbench (1).

3. The device for cultivating bok choy according to claim 1, characterized in that, The inner cylinder (3) includes a first cylinder section (32) and a second cylinder section (33). The top end of the first cylinder section (32) is formed with an installation ring (34). The protrusion (31) is connected to the first cylinder section (32), and the top of the protrusion (31) is connected to the installation ring (34). The bottom surface and outer wall of the second cylinder section (33) are provided with water holes (30). The heating cylinder (2) has an installation groove (21) on its top, and the installation ring (34) is installed in the installation groove (21).

4. The device for cultivating bok choy according to claim 1, characterized in that, The drainage pool (6) is provided with a support plate (9), the support plate (9) is provided with a placement groove (90), and the bottom of the placement groove (90) is provided with a through hole (900) penetrating the support plate (9).

5. The device for cultivating bok choy according to claim 1, characterized in that, A bag holder (10) is connected to the drainage pool (6), and a wet cloth bag (11) is placed on the bag holder (10).

6. The device for cultivating bok choy according to claim 1, characterized in that, The stirring mechanism (4) includes an arc-shaped blade (41), a rotating shaft (42), a positioning sleeve (43), and a drive motor (44). The rotating shaft (42) is provided with a slot (420), and the side of the arc-shaped blade (41) is engaged in the slot (420). The positioning sleeve (43) is provided with an opening (430). After the positioning sleeve (43) is connected to the rotating shaft (42), the end of the arc-shaped blade (41) is engaged in the opening (430). The rotating shaft (42) is connected to the drive motor (44).

7. The device for cultivating bok choy according to claim 1, characterized in that, The lifting mechanism (5) includes a mounting plate (51), with mounting blocks (52) connected to both ends of the mounting plate (51). A screw (53) is connected between the mounting blocks (52). A first nut (541) and a second nut (542) are connected to the screw (53). A first slider (551) is connected to the first nut (541). A horizontal support rod (56) and a first guide block (571) are connected to the first slider (551). A second slider (552) is connected to the second nut (542). An inclined support rod (58) and a second guide block (572) are connected to the second slider (552). The horizontal support rod (56) is connected to the inclined support rod (58). A guide rod (59) is connected between the mounting blocks (52). The first slider (551) and the second slider (552) are provided with guide holes (550), and the guide rod (59) passes through the guide hole (550). The mounting plate (51) is provided with a sliding groove (510), and the first guide block (571) and the second guide block (572) are respectively disposed in the sliding groove (510), wherein a connecting rod (50) is connected between the first guide block (571) and the second guide block (572). The stirring mechanism (4) is connected to the horizontal support rod (56).

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