Constant temperature fermentation device for pancake
Patent Information
- Application Number
- CN202511178680.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2045-08-22
AI Technical Summary
[0003]然而现有技术中,对煎饼用米浆进行发酵的设备会直接将米浆放置到密封的容器中,调节固定温度和湿度即可静置发酵,但是该方案会导致密封内部的产生的二氧化碳气体难以高效的进行排出,且静置的过程中,米浆中仍旧存在的大颗粒米粒也会影响后续煎饼加工的过程,造成煎饼出现破裂
1.该煎饼用恒温发酵装置通过在外壳的内部设置有内层转动套壳,并通过电机进行驱动,就能够直接带动内侧的原料以及内层转动套壳部分进行旋转运动,使得内部的米浆原料在发酵的过程中能够进行持续缓慢的转动,加速内部气泡的均匀化分布,并促进了内部二氧化碳的排出,提高了发酵的效率。
Smart Images

Figure 2K8I0F1FWLHTHXHK1SY1KUPGCIASFLMJ9DLJZPIW 
Figure AQQJGLYGYWFX9TDQSS0YAPMIDXZHOZ9DEYKCHNVN 
Figure DLBFVS9GKGCXNAB140RAC5G9DL7VO4QBGNDVQLKX
Abstract
Description
Technical Field
[0001] This invention relates to the field of fermentation equipment technology, specifically a constant temperature fermentation device for pancakes. Background Technology
[0002] Rice flour batter is used as a raw material in the production of pancakes. During the initial preparation of the rice flour batter, fermentation is necessary. The core purpose of fermentation is to optimize the texture, flavor, and digestibility of the pancakes. Microorganisms such as lactic acid bacteria metabolize the batter, producing organic acids (such as lactic acid and acetic acid) and trace flavor compounds, giving the pancakes a unique, mellow, and complex aroma, neutralizing the monotony of a single rice flavor. The fermentation process produces carbon dioxide gas, creating a dense network of pores within the rice flour batter. When cooked, the gas expands due to heat, resulting in a fluffy and soft texture, preventing the finished product from being too hard or sticky. Furthermore, microorganisms enzymatically break down some starch and protein, producing small-molecule sugars and amino acids, which not only enhance the sweetness but also reduce the digestive burden, while increasing the content of active substances such as B vitamins. Therefore, fermentation is an important processing technology in the food biotechnology industry.
[0003] However, in the existing technology, the equipment for fermenting rice batter for pancakes directly places the rice batter into a sealed container and adjusts the temperature and humidity to allow it to ferment. However, this method makes it difficult for the carbon dioxide gas generated inside the sealed container to be discharged efficiently. Furthermore, during the fermentation process, the large rice grains that are still present in the rice batter can affect the subsequent pancake processing and cause the pancakes to crack. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the present invention aims to provide a constant-temperature fermentation device for pancakes, thereby solving the problems mentioned in the background art. This invention enables the internal rice slurry to rotate continuously and slowly during fermentation, accelerating the uniform distribution of internal air bubbles and promoting the expulsion of internal carbon dioxide, thus improving fermentation efficiency. By generating an electrical signal through contact between the first and second conductive plates, the current fermentation level can be determined based on whether the expansion rate of the rice slurry has reached the target state. Simultaneously, it can scrape and remove rice slurry residue adhering to the inner wall of the inner rotating shell, meeting the high standards required by the food biotechnology industry.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature fermentation device for pancakes, comprising a fermentation device body, the fermentation device body including an outer shell, a support frame, an inner rotating sleeve, and a fermentation auxiliary mechanism. A support frame is welded to the side of the outer shell, and a support plate is welded to the bottom of the support frame. An air pump is screwed onto the surface of the support plate, and one end of the air pump is connected to an air supply pipe. An inner rotating sleeve is inserted into the inner side of the outer shell, and the side of the inner rotating sleeve is movably connected to the inner wall of the outer shell via ball bearings. A feeding port is installed at the front end of the inner rotating sleeve, and a sealing cover is installed inside the feeding port. The fermentation auxiliary mechanism includes a rotating mechanism, a floating mechanism, and a counterweight assembly. A docking sleeve is provided at the front end of the inner rotating sleeve, and the top end of the air supply pipe communicates with the interior of the docking sleeve. An end plate is screwed onto one end of the fermentation auxiliary mechanism, and a central shaft is integrally formed in the middle of the end plate. A motor is provided at one end of the central shaft, and a rotating mechanism is sleeved on the surface of the central shaft. A floating mechanism is embedded on the side of the rotating mechanism.
[0006] Furthermore, the motor housing is screwed onto the outer side of the outer shell, the end plate is welded to the surface of the inner rotating sleeve, the surface of the central shaft has multiple air holes, the end of the central shaft is fitted with a mating bearing, and the end of the air supply pipe passes through the mating bearing and connects to the interior of the central shaft.
[0007] Furthermore, the rotating mechanism includes a rotating collar, a groove, and a sandwich layer. The rotating collar has a groove on its inner side, a second conductive sheet is embedded at one end of the groove, a sandwich layer is formed on the inner wall of the groove, and a cleaning hole is formed at the top of the sandwich layer.
[0008] Furthermore, there are two rotating mechanisms, the inner ring of the rotating collar is an open structure, the inner side of the rotating collar is connected to the internal cavity of the central shaft, and the groove is a semi-circular structure.
[0009] Furthermore, the floating mechanism includes a connecting rod, a sliding plate, a floating rod, and a scraper. One end of the connecting rod is integrally formed with a sliding plate, and both sides of the sliding plate are integrally formed with plug-in blocks. A first conductive sheet is attached to the top of the sliding plate.
[0010] Furthermore, the other end of the connecting rod is integrally formed with a support block, the bottom of the support block is provided with a floating rod, the floating rod is used to float on the liquid surface of the rice slurry raw material, and the top of the support block is integrally formed with a scraper, the scraper is used to press against the inner wall of the inner rotating sleeve.
[0011] Furthermore, the plug-in block is used to be embedded inside the interlayer, the sliding plate is used to be embedded inside the groove, the first conductive sheet is partially in contact with the second conductive sheet after rotating inside the groove, and the cleaning hole cleans the surfaces of the first and second conductive sheets by the ejected airflow.
[0012] Furthermore, the counterweight assembly includes a drooping plate, a compression roller, and a guide plate. The bottom of the rotating collar is welded with a drooping plate, and a support sleeve is integrally formed at the end of the drooping plate. A connecting shaft is inserted into the inner side of the support sleeve, and a compression roller is provided in the middle of the connecting shaft.
[0013] Furthermore, a guide plate is welded to the inner side of the drooping plate, a feed inlet is provided at the top of the guide plate, the bottom of the guide plate is open, and a gap is provided between the bottom of the guide plate and the extrusion roller. A transmission channel is also welded to the outer side of one of the drooping plates.
[0014] Furthermore, the transmission channel is internally provided with a second gear and a toothed belt. The surface of the central shaft is keyed to a first gear, and the second gear is keyed to the surface of the connecting shaft. A toothed belt is fitted between the first gear and the second gear. The top of the transmission channel is open, and the toothed belt passes downward from the top of the transmission channel into the inside of the transmission channel.
[0015] The beneficial effects of this invention are: 1. The constant temperature fermentation device for this pancake uses an inner rotating shell inside the outer shell, which is driven by a motor to directly drive the raw materials inside and the inner rotating shell to rotate. This allows the rice batter inside to rotate continuously and slowly during the fermentation process, accelerating the uniform distribution of internal air bubbles and promoting the expulsion of internal carbon dioxide, thereby improving the fermentation efficiency.
[0016] 2. The constant temperature fermentation device for pancakes has a rotating mechanism installed on the surface of the central shaft. The rotating mechanism is fixedly connected to the counterweight component at the bottom and movably connected to the floating mechanism on the side. At this time, it can always float on the surface of the rice paste for fermentation through the moving mechanism. As the rice paste expands during the fermentation process, it slowly moves upward. Finally, it generates an electrical signal by contacting the first and second conductive plates. The degree of fermentation can be judged according to whether the expansion rate of the rice paste has reached the target state. At the same time, it can also scrape and remove the rice paste residue adhering to the inner wall of the inner rotating shell.
[0017] 3. The constant temperature fermentation device for this pancake has a counterweight component connected to the bottom of the rotating mechanism. Through the transmission structure at the front end of the counterweight component, the bottom extrusion roller can be directly driven to rotate, thereby crushing the remaining large rice grains in the rice batter, improving the texture of the pancake and the quality of the product. Moreover, this process can still be achieved by an independent stirring device, without the need to build an additional power system. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the external structure of a constant temperature fermentation device for pancakes according to the present invention. Figure 2 This is a structural diagram of a constant temperature fermentation device for pancakes according to the present invention after it has been opened; Figure 3 This is a schematic diagram of the fermentation auxiliary mechanism of the present invention; Figure 4 This is a schematic diagram of the central axis portion of the present invention; Figure 5 This is a schematic diagram of the floating mechanism portion of the present invention; Figure 6 for Figure 4 Enlarged view of region A in the middle; Figure 7 This is a schematic diagram of the counterweight component of the present invention; In the diagram: 1. Outer shell; 2. Support frame; 3. Inner rotating sleeve; 4. Feed port; 5. Connecting sleeve; 6. Support plate; 7. Air pump; 8. Air supply pipe; 9. Fermentation auxiliary mechanism; 10. Motor; 11. End plate; 12. Central shaft; 13. Air hole; 14. Connecting bearing; 15. Rotating mechanism; 16. Floating mechanism; 17. Counterweight assembly; 18. Floating rod; 19. Support block; 20. Scraper; 21. Connecting rod; 22. Sliding plate; 23. Insertion block; 24. First conductive sheet; 25. Rotating collar; 26. Groove; 27. Second conductive sheet; 28. Cleaning hole; 29. Interlayer; 30. Drooping plate; 31. Support sleeve; 32. Connecting shaft; 33. Extrusion roller; 34. Guide plate; 35. Feed port; 36. First gear; 37. Toothed belt; 38. Second gear; 39. Transmission channel. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0020] Please see Figures 1 to 7The present invention provides the following technical solution: a constant temperature fermentation device for pancakes, comprising a fermentation device body, the fermentation device body comprising an outer shell 1, a support frame 2, an inner rotating sleeve 3, and a fermentation auxiliary mechanism 9. The support frame 2 is welded to the side of the outer shell 1, and a support plate 6 is welded to the bottom of the support frame 2. An air pump 7 is screwed onto the surface of the support plate 6, and one end of the air pump 7 is connected to an air supply pipe 8. The inner rotating sleeve 3 is inserted into the inner side of the outer shell 1, and the side of the inner rotating sleeve 3 is movably connected to the inner wall of the outer shell 1 via ball bearings. A feeding device is installed at the front end of the inner rotating sleeve 3. The inner side of the feeding port 4 is fitted with a sealing cover. The fermentation auxiliary mechanism 9 includes a rotating mechanism 15, a floating mechanism 16, and a counterweight assembly 17. The front end of the inner rotating sleeve 3 is provided with a docking sleeve 5. The top end of the air supply pipe 8 is connected to the interior of the docking sleeve 5. One end of the fermentation auxiliary mechanism 9 is screwed with an end plate 11. A central shaft 12 is integrally formed in the middle of the end plate 11. A motor 10 is provided at one end of the central shaft 12. The rotating mechanism 15 is sleeved on the surface of the central shaft 12. The floating mechanism 16 is embedded on the side of the rotating mechanism 15. This fermentation device is used to ferment the rice batter raw material for making pancakes.
[0021] In use, the rice slurry raw material to be fermented is injected into the inner side through the feeding port 4 at the front end of the inner rotating shell 3. Then, the feeding port 4 can be sealed with a sealing cover. At this time, the motor 10 is started, which drives the central shaft 12 to rotate. The central shaft 12 and the end plate 11 directly drive the entire inner rotating shell 3 to rotate, thereby controlling the rice slurry raw material injected into the inner side to roll and tumble along the inner wall of the inner rotating shell 3, accelerating the generation and discharge of carbon dioxide inside. At the same time, a rotating mechanism 15 is provided on the surface of the central shaft 12. The rotating mechanism 15 is always hanging downwards towards the bottom through the counterweight component 17, which can ensure that the entire rotating structure can rotate relative to the central shaft 12. The floating mechanism 16 on the side of the rotating mechanism 15 can always float on the surface through the floating rod 18 at the end. Therefore, in the subsequent fermentation process, after the rice slurry begins to expand, it can lift the floating mechanism 16 upwards until the preset expansion ratio is reached, and then an electrical signal is triggered to remind. Throughout the fermentation process, the movement of the internal rice slurry raw material can be controlled, and large particles in the rice slurry raw material can be crushed by the bottom counterweight component 17.
[0022] In this embodiment, the housing portion of the motor 10 is screwed onto the outer side of the outer shell 1, the end plate 11 is welded to the surface of the inner rotating sleeve 3, the surface of the central shaft 12 has multiple air holes 13, the end of the central shaft 12 is fitted with a mating bearing 14, and the end of the air supply pipe 8 passes through the mating bearing 14 and connects to the interior of the central shaft 12. The rotating mechanism 15 includes a rotating collar 25, a groove 26, and a sandwich 29. The inner side of the rotating collar 25 has a groove 26, one end of which is fitted with a second conductive sheet 27. The inner wall of the groove 26 has a sandwich 29, and the top of the sandwich 29 has a cleaning hole 28. There are two rotating mechanisms 15. The inner ring portion of the rotating collar 25 has an open structure, and the inner side of the rotating collar 25 is connected to the internal cavity of the central shaft 12. The groove 26 is generally semi-circular. By setting an inner rotating shell 3 inside the outer shell 1 and driving it with a motor 10, the raw materials inside and the inner rotating shell 3 can be directly driven to rotate, so that the rice milk raw materials inside can rotate continuously and slowly during the fermentation process, which accelerates the uniform distribution of internal bubbles and promotes the discharge of internal carbon dioxide, thereby improving the fermentation efficiency.
[0023] Specifically, after starting the motor 10, the motor 10 simultaneously drives the end plate 11 and the central shaft 12 to rotate. The end plate 11 drives the entire inner rotating sleeve 3 to rotate, causing the rice slurry raw material on the inside to continuously tumble along the inner rotating sleeve 3. At the same time, with the help of the external air pump 7, oxygen can be delivered into the interior of the inner rotating sleeve in the early stage of fermentation to promote the aerobic fermentation stage. In the later stage, inert gas can be directly introduced to expel oxygen and promote the efficient anaerobic fermentation stage. During this process, the central shaft 12 rotates continuously, while the rotating collar 25 on the surface is pulled by the counterweight component 17 at the bottom, thus maintaining a relatively stable angle.
[0024] In this embodiment, the floating mechanism 16 includes a connecting rod 21, a sliding plate 22, a floating rod 18, and a scraper 20. One end of the connecting rod 21 is integrally formed with the sliding plate 22, and both sides of the sliding plate 22 are integrally formed with insertion blocks 23. A first conductive sheet 24 is attached to the top of the sliding plate 22. The other end of the connecting rod 21 is integrally formed with a support block 19. The bottom of the support block 19 is provided with the floating rod 18, which floats on the surface of the rice slurry raw material. The top of the support block 19 is integrally formed with a scraper 20, which presses against the inner wall of the inner rotating sleeve 3. The insertion blocks 23 are embedded into the interior of the interlayer 29, and the sliding plate 22 is embedded into the interior of the groove 26. The first conductive sheet 24 partially contacts the second conductive sheet 27 after rotating inside the groove 26. The cleaning hole 28 cleans the surfaces of the first conductive sheet 24 and the second conductive sheet 27 through an ejected airflow. A rotating mechanism 15 is installed on the surface of the central shaft 12. The rotating mechanism 15 is fixedly connected to the counterweight component 17 at the bottom and movably connected to the floating mechanism 16 on the side. At this time, it can always float on the surface of the rice milk for fermentation through the moving mechanism, and slowly move upward as the rice milk expands during the fermentation process. Finally, it generates an electrical signal by contacting the first conductive sheet 24 and the second conductive sheet 27. The degree of fermentation can be judged according to whether the expansion rate of the rice milk has reached the target state. At the same time, the rice milk residue adhering to the inner wall of the inner rotating sleeve 3 can be scraped and removed.
[0025] Specifically, the floating mechanism 16 is embedded in the groove 26 via a sliding plate 22 at one end. The floating rod 18 always floats on the surface of the rice slurry. Therefore, during fermentation, as the rice slurry expands, it directly lifts the top floating rod 18. At this time, the sliding plate 22 rotates upwards inside the groove 26 via the connecting rod 21 until the set expansion rate is reached. Then, the first conductive piece 24 and the second conductive piece 27 at the end of the sliding plate 22 come into contact to generate an electrical signal, thereby alerting external personnel that fermentation has ended. At the same time, during the continuous rotation of the inner rotating shell 3, the scraper 20 at the end also scrapes and cleans the residue adhering to the inner wall of the inner rotating shell 3.
[0026] In this embodiment, the counterweight assembly 17 includes a drooping plate 30, an extrusion roller 33, and a guide plate 34. The bottom of the rotating collar 25 is welded with the drooping plate 30, and a support sleeve 31 is integrally formed at the end of the drooping plate 30. A connecting shaft 32 is inserted into the inner side of the support sleeve 31, and the extrusion roller 33 is disposed in the middle of the connecting shaft 32. The guide plate 34 is welded to the inner side of the drooping plate 30. The top of the guide plate 34 has a feed inlet 35, and the bottom of the guide plate 34 is open. A gap is provided between the bottom of the guide plate 34 and the extrusion roller 33. A transmission channel 39 is also welded to the outer side of one of the drooping plates 30. The transmission channel 39 is internally equipped with a second gear 38 and a toothed belt 37. A first gear 36 is keyed to the surface of the central shaft 12, and the second gear 38 is keyed to the surface of the connecting shaft 32. A toothed belt 37 is fitted between the first gear 36 and the second gear 38. The top of the transmission channel 39 is open, and the toothed belt 37 extends downwards from the top of the transmission channel 39 into its inner side. A counterweight assembly 17 is connected to the bottom of the rotating mechanism 15. Through the transmission structure at the front end of the counterweight assembly 17, the bottom extrusion roller 33 can be directly driven to rotate, thus crushing the remaining large rice grains in the rice batter. This improves the texture of the subsequent pancakes and enhances product quality. Furthermore, this process can be achieved using a separate stirring device without requiring an additional power system.
[0027] Specifically, when the central shaft 12 rotates, it drives the second gear 38 to rotate through the first gear 36 and the toothed belt 37. The second gear 38 drives the connecting shaft 32 to rotate, which in turn drives the entire extrusion roller 33 to rotate. As explained above, the rice paste raw material will always tumble with the rotation of the inner rotating shell 3. Therefore, after some of the rice paste raw material falls into the feed port 35 at the top of the guide plate 34, it will be continuously kneaded at this position with the rotation of the bottom extrusion roller 33, which accelerates the crushing process of the large residual particles inside. The entire counterweight assembly 17 can also ensure that the rotating mechanism 15 is always kept at a fixed angle relative to the center.
[0028] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A constant temperature fermentation device for pancakes, comprising a fermentation device body, characterized in that: The fermentation device body includes an outer shell (1), a support frame (2), an inner rotating sleeve (3), and a fermentation auxiliary mechanism (9). The support frame (2) is welded to the side of the outer shell (1), and a support plate (6) is welded to the bottom of the support frame (2). An air pump (7) is screwed onto the surface of the support plate (6), and one end of the air pump (7) is connected to an air supply pipe (8). The inner rotating sleeve (3) is inserted into the inner side of the outer shell (1), and the side of the inner rotating sleeve (3) is movably connected to the inner wall of the outer shell (1) through ball bearings. A feeding port (4) is installed at the front end of the inner rotating sleeve (3), and a sealing cover is installed on the inner side of the feeding port (4). The fermentation auxiliary mechanism (9) includes a rotating mechanism (15) and a floating mechanism (16). 6) and counterweight assembly (17), the front end of the inner rotating sleeve (3) is provided with a docking sleeve (5), the top end of the gas supply pipe (8) is connected to the inside of the docking sleeve (5), one end of the fermentation auxiliary mechanism (9) is screwed with an end plate (11), the middle of the end plate (11) is integrally formed with a central shaft (12), one end of the central shaft (12) is provided with a motor (10), the surface of the central shaft (12) is sleeved with a rotating mechanism (15), the side of the rotating mechanism (15) is embedded with a floating mechanism (16), the rotating mechanism (15) includes a rotating collar (25), a groove (26) and a sandwich (29), the inner side of the rotating collar (25) is provided with a groove (26), the A second conductive sheet (27) is embedded at one end of the groove (26). A sandwich layer (29) is provided on the inner wall of the groove (26). A cleaning hole (28) is provided at the top of the sandwich layer (29). There are two rotating mechanisms (15). The inner ring of the rotating collar (25) is an open structure. The inner side of the rotating collar (25) is connected to the internal cavity of the central shaft (12). The groove (26) is semi-circular in shape. The floating mechanism (16) includes a connecting rod (21), a sliding plate (22), a floating rod (18), and a scraper (20). A sliding plate (22) is integrally formed at one end of the connecting rod (21). Insertion blocks (28) are integrally formed on both sides of the sliding plate (22). 3) The top of the sliding plate (22) is fitted with a first conductive sheet (24), and the other end of the connecting rod (21) is integrally formed with a support block (19). The bottom of the support block (19) is provided with a floating rod (18), which is used to float on the liquid surface of the rice slurry raw material. The top of the support block (19) is integrally formed with a scraper (20), which is used to press against the inner wall of the inner rotating sleeve (3). The plug block (23) is used to be embedded into the interior of the interlayer (29), and the sliding plate (22) is used to be embedded into the interior of the groove (26). The first conductive sheet (24) partially contacts the second conductive sheet (27) after rotating inside the groove (26).The cleaning hole (28) cleans the surfaces of the first conductive sheet (24) and the second conductive sheet (27) through an ejected airflow.
2. The constant temperature fermentation device for pancakes according to claim 1, characterized in that: The housing part of the motor (10) is screwed to the outside of the outer shell (1), the end plate (11) part is welded to the surface of the inner rotating sleeve (3), the surface of the central shaft (12) is provided with multiple air holes (13), the end of the central shaft (12) is fitted with a docking bearing (14), and the end of the air supply pipe (8) passes through the docking bearing (14) and is connected to the inside of the central shaft (12).
3. The constant temperature fermentation device for pancakes according to claim 1, characterized in that: The counterweight assembly (17) includes a drooping plate (30), a compression roller (33) and a guide plate (34). The bottom of the rotating collar (25) is welded with a drooping plate (30). The end of the drooping plate (30) is integrally formed with a support sleeve (31). A connecting shaft (32) is inserted into the inner side of the support sleeve (31). The compression roller (33) is arranged in the middle of the connecting shaft (32).
4. The constant temperature fermentation device for pancakes according to claim 3, characterized in that: A guide plate (34) is welded to the inner side of the drooping plate (30). The top of the guide plate (34) is provided with a feed inlet (35). The bottom of the guide plate (34) is open. A gap is provided between the bottom of the guide plate (34) and the extrusion roller (33). A transmission channel (39) is also welded to the outer side of one of the drooping plates (30).
5. The constant temperature fermentation device for pancakes according to claim 4, characterized in that: The transmission channel (39) is provided with a second gear (38) and a toothed belt (37) inside. The surface of the central shaft (12) is keyed to a first gear (36), and the second gear (38) is keyed to the surface of the connecting shaft (32). A toothed belt (37) is sleeved between the first gear (36) and the second gear (38). The top of the transmission channel (39) is open, and the toothed belt (37) passes down from the top of the transmission channel (39) into the inside of the transmission channel (39).
Citation Information
Patent Citations
Dye vat with liquid level monitoring device
CN210048775U
Fermentation equipment capable of measuring temperature and humidity
CN213680684U
Pressurized reaction equipment with grinding function
CN218485910U