Freeze-drying device for preparing probiotic powder

By setting a sealing mechanism on the freeze dryer and using a combination of vacuum suction cups and locking pins, the problem of cumbersome door opening and closing operations of the freeze dryer is solved, the efficiency and sealing of probiotic powder preparation are improved, and the high-efficiency operation of the freeze dryer is ensured.

CN224262073UActive Publication Date: 2026-05-19HANGZHOU GUODIAN SELECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU GUODIAN SELECTION TECHNOLOGY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The operation of opening and closing the door of the existing probiotic powder freeze dryer is cumbersome, which affects the preparation efficiency.

Method used

The door sealing mechanism, combined with the design of vacuum suction cup and fixed pin, enables the machine cover and door ring to fit quickly and tightly and be positioned at a single point, simplifying the operation process.

Benefits of technology

This improves the production efficiency of probiotic powder preparation in freeze dryers, ensures the stability of the vacuum degree of the freeze dryer body when the door is closed, and avoids the fluctuation of sealing caused by manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a freeze-drying device for preparing probiotic powder, which comprises a freeze-drying machine body, a machine door opening ring and a machine cover, the machine door opening ring is fixed at a machine door of the freeze-drying machine body, the top end of the freeze-drying machine body is provided with a rail frame used for hoisting the machine cover to move laterally, and the freeze-drying device further comprises a door sealing mechanism. The door sealing mechanism is arranged at the freeze dryer body, the door sealing mechanism changes the tedious process of multiple groups of manual screwing and door locking of the freeze dryer body through the combined design of the vacuum suction cup and the insertion fixing pin, when the machine cover is horizontally moved to the machine door opening ring, the vacuum suction cup can rapidly suck a fixed disc in a negative pressure mode, and tight attachment of the machine cover and the machine door opening ring is instantly completed; single-point positioning of the machine cover and the machine door opening ring is achieved through the inserting pin, the inserting pin is pulled out after the vacuum suction cup releases the fixed disc, the machine cover can be rapidly pulled to conduct door opening operation, and the production efficiency of freeze-drying preparation of probiotic powder through the freeze dryer body is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of probiotic powder preparation technology, and in particular to a freeze-drying device for preparing probiotic powder. Background Technology

[0002] Probiotic powder contains beneficial microorganisms that help maintain intestinal health and balance. These mainly include Bifidobacteria and Lactobacillus, which have functions such as intestinal health care, immune enhancement, and regulatory effects. During freeze-drying, the probiotic product is first pre-frozen to a low temperature in a vacuum freeze dryer, causing the water to freeze into ice crystals. Then, under high vacuum, the ice crystals are heated to sublimate into water vapor and removed. Finally, a second drying process removes residual moisture, thus preserving the activity and original properties of the probiotics to the greatest extent possible. The freeze-dried block material is then pulverized using a sterile pulverizer to obtain probiotic powder.

[0003] Currently, when using stainless steel vacuum freeze dryers to prepare probiotic powder, the lid slides from one side of the track above the freeze dryer to the door after the material to be freeze-dried enters the freeze dryer along the track at the hanger. Then, the worker manually rotates the locking mechanism on the outside of the freeze dryer into the side frame of the lid and manually screws it in place. This locking mechanism is usually set with at least four sets, which makes the operation of opening and closing the freeze dryer door during probiotic freeze-drying quite cumbersome, prolongs the probiotic freeze-drying preparation time, and indirectly affects the efficiency of probiotic freeze-drying preparation. To address this, we propose a freeze-drying device for preparing probiotic powder. Utility Model Content

[0004] The main objective of this invention is to provide a freeze-drying device for preparing probiotic powder. By incorporating a sealing mechanism into the freeze dryer body, which combines a vacuum suction cup with a locking pin, the cumbersome process of manually turning and locking multiple doors is completely eliminated. When the lid moves to the door ring, the vacuum suction cup can quickly and negatively adsorb the locking plate through the control system, instantly achieving a tight fit between the lid and the door ring, thus shortening the lid's closing time. The locking pin enables single-point positioning between the lid and the door ring. After the vacuum suction cup releases the locking plate, the locking pin can be pulled out, allowing for quick and convenient opening of the lid. This effectively improves the production efficiency of freeze-drying probiotic powder and solves the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A freeze-drying apparatus for preparing probiotic powder includes a freeze dryer body, a door ring, and a cover. The door ring is fixed to the door of the freeze dryer body, and a rail frame for lateral movement of the cover is provided at the top of the freeze dryer body. The apparatus also includes a sealing mechanism comprising a machine-mounted ring, a cover-mounted ring, a round-headed fixing block, a round-headed receiving plate, a vacuum suction cup, a fixing plate, an L-shaped long fixing plate, and an L-shaped short fixing plate. The machine-mounted ring and the cover are respectively welded to their outer sides. The cover ring has a round-headed fixed block and a round-headed receiving plate welded to its outer ring wall, respectively. A vacuum suction cup is locked to the round-headed fixed block by a flange nut. The surface of the round-headed receiving plate has a protruding plate for resisting the vacuum suction cup and being suctioned. An L-shaped long fixed plate is welded to the lower ring wall of the machine ring away from the round-headed fixed block, and an L-shaped short fixed plate is welded to the cover ring above the L-shaped long fixed plate. A pin is inserted between the L-shaped short fixed plate and the L-shaped long fixed plate.

[0007] Furthermore, a T-shaped perforation is provided through the surface of the round-headed fixed block facing the round-headed receiving plate, and a vacuum suction cup is inserted into the large cavity of the T-shaped perforation. The back-mounted screw of the vacuum suction cup passes through the small cavity of the T-shaped perforation and is screwed into the flange nut.

[0008] By adopting the above technical solution, the back-mounted screw of the vacuum suction cup passes through the T-shaped through hole of the round-headed block and is then tightened by screwing on the flange nut. Subsequently, the mounting hole on the back of the back-mounted screw of the vacuum suction cup can be connected to a common vacuum suction cup control system through a pipeline for on-demand control.

[0009] Furthermore, the fixed plate of the round-head receiving plate is embedded in the hole of the T-shaped perforation, and a rubber ring is squeezed into the T-shaped perforation on the outer side of the plate body.

[0010] By adopting the above technical solution, the fixed plate of the round-head receiving plate, with a rubber ring, can be embedded in the T-shaped perforation for shallow positioning when the machine cover is flipped back and forth, so that the fixed plate can be firmly sucked by the vacuum suction cup.

[0011] Furthermore, the length of the vertical plate of the L-shaped long fixed plate is greater than the length of the vertical plate of the L-shaped short fixed plate, and a separation gap is reserved between the bottom plate of the L-shaped long fixed plate and the bottom plate of the L-shaped short fixed plate.

[0012] By adopting the above technical solution, the cover with the L-shaped short fixed plate can be moved horizontally above the L-shaped long fixed plate, which facilitates the horizontal sliding and opening operation of the cover.

[0013] Furthermore, pin holes are provided through the bottom flat surfaces of the L-shaped long fixed plate and the L-shaped short fixed plate, and pin rods for inserting fixed pins are inserted into the pin holes of the L-shaped long fixed plate and the L-shaped short fixed plate.

[0014] By adopting the above technical solution, pins with locking pins can be inserted into the pin holes of the L-shaped long plate and the L-shaped short plate for pin-fitting and positioning, so that there is an anti-loosening position after the machine cover and the door ring are sucked closed.

[0015] Furthermore, the round-headed fixing block is welded in six groups in a circumferential distributed manner on the outer side of the machine-mounted ring, and the round-headed receiving plate is welded in six groups in a circumferential distributed manner on the outer side of the cover ring.

[0016] By adopting the above technical solution, the outer side of the machine mounting ring has a number of round-headed fixed blocks that, together with the vacuum suction cup, can be suctioned at multiple round-headed receiving plates on the outer side of the cover mounting ring, thereby achieving a firm seal between the machine door ring and the machine cover.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention introduces a door sealing mechanism on the freeze dryer body. The door sealing mechanism, through a combination of vacuum suction cup and locking pin, completely changes the cumbersome process of traditional manual locking with multiple sets of screws. When the lid is moved to the door ring, the vacuum suction cup can quickly adsorb the locking plate through the control system, instantly achieving a tight fit between the lid and the door ring, shortening the closing time of the lid. The locking pin achieves single-point positioning between the lid and the door ring. After the vacuum suction cup releases the locking plate, the locking pin can be pulled out to quickly open the lid, effectively improving the production efficiency of freeze-drying probiotic powder in the freeze dryer body.

[0019] Furthermore, the six sets of circularly distributed vacuum suction cups on the outer side of the machine mounting ring, together with the rubber ring sealing structure at the round head receiving plate on the outer side of the cover mounting ring, ensure that the force is evenly distributed at each part where the cover and the door ring meet, thus guaranteeing the vacuum degree of the freeze dryer body when the door is closed and avoiding fluctuations in the sealing performance when the freeze dryer body is manually closed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a freeze-drying device for preparing probiotic powder according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the open state of a freeze-drying device for preparing probiotic powder according to this utility model.

[0022] Figure 3 This is an exploded view of the sealing mechanism of a freeze-drying device for preparing probiotic powder according to this utility model.

[0023] Figure 4 This is a schematic diagram showing the disassembly of the rubber ring and the platen of the freeze-drying device for preparing probiotic powder according to this utility model.

[0024] In the diagram: 1. Freeze dryer body; 2. Door ring; 3. Cover; 4. Sealing mechanism; 5. Mounting ring; 6. Cover ring; 7. Round-headed fixing block; 8. Round-headed receiving plate; 9. T-shaped perforation; 10. Vacuum suction cup; 11. Flange nut; 12. Fixing plate; 13. Rubber ring; 14. L-shaped long fixing plate; 15. L-shaped short fixing plate; 16. Insert fixing pin. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, a freeze-drying device for preparing probiotic powder includes a freeze dryer body 1, a door ring 2, and a cover 3. The door ring 2 is fixed at the door of the freeze dryer body 1, and a rail frame for suspending and moving the cover 3 laterally is provided at the top of the freeze dryer body 1. It also includes a sealing mechanism 4, which includes a machine-mounted ring 5, a cover-mounted ring 6, a round-headed fixing block 7, a round-headed receiving plate 8, a vacuum suction cup 10, a fixing plate 12, an L-shaped long fixing plate 14, and an L-shaped short fixing plate 15. The machine-mounted ring 5 and the cover 3 are welded to the outer sides of the door ring 2 and the cover 3, respectively. The outer ring walls of the machine-mounted ring 5 and the cover ring 6 are respectively welded with a round-headed fixing block 7 and a round-headed receiving plate 8. The round-headed fixing block 7 is locked with a vacuum suction cup 10 by a flange nut 11. The surface of the round-headed receiving plate 8 has a protruding fixing plate 12 for resisting the vacuum suction cup 10 for suction. The lower ring wall of the machine-mounted ring 5 away from the round-headed fixing block 7 is welded with an L-shaped long fixing plate 14, and the cover ring 6 above the L-shaped long fixing plate 14 is welded with an L-shaped short fixing plate 15. A fixing pin 16 is inserted between the L-shaped short fixing plate 15 and the L-shaped long fixing plate 14.

[0027] Among them, the round-headed fixed block 7 has a T-shaped through hole 9 through the plate surface facing the round-headed receiving plate 8, and a vacuum suction cup 10 is inserted into the large cavity of the T-shaped through hole 9. The back-mounted screw of the vacuum suction cup 10 passes through the small cavity of the T-shaped through hole 9 and is screwed to the flange nut 11.

[0028] By adopting the above technical solution, the back-mounted screw of the vacuum suction cup 10 passes through the T-shaped through hole 9 of the round head block 7 and is then tightened by screwing on the flange nut 11. Subsequently, the mounting hole on the back of the back-mounted screw of the vacuum suction cup 10 can be connected to a common vacuum suction cup control system through a pipeline for on-demand control.

[0029] The fixed plate 12 of the round head receiving plate 8 is embedded in the hole of the T-shaped through hole 9, and the outer side of the fixed plate 12 is fitted with a rubber ring 13 that is squeezed into the T-shaped through hole 9.

[0030] By adopting the above technical solution, the fixed plate 12 of the round head receiving plate 8, with the rubber ring 13, can be embedded in the T-shaped perforation 9 for shallow positioning when the cover 3 is flipped back and forth, so that the fixed plate 12 can be firmly sucked by the vacuum suction cup 10.

[0031] Wherein, the vertical plate length of the L-shaped long fixed plate 14 is greater than the vertical plate length of the L-shaped short fixed plate 15, and a separation gap is reserved between the bottom plate of the L-shaped long fixed plate 14 and the bottom plate of the L-shaped short fixed plate 15.

[0032] By adopting the above technical solution, the cover 3, with the L-shaped short fixed plate 15, can be moved horizontally above the L-shaped long fixed plate 14, which facilitates the horizontal opening operation of the cover 3.

[0033] Wherein, pin holes are provided through the bottom flat surfaces of the L-shaped long fixed plate 14 and the L-shaped short fixed plate 15, and pin rods of the fixed pin 16 are inserted into the pin holes of the L-shaped long fixed plate 14 and the L-shaped short fixed plate 15.

[0034] By adopting the above technical solution, the pin rod of the fixing pin 16 can be inserted into the pin hole of the L-shaped long fixing plate 14 and the L-shaped short fixing plate 15 for pin connection and positioning, so that the machine cover 3 and the door ring 2 are sucked closed and there is an anti-loosening position.

[0035] Among them, the round-headed fixed block 7 has six sets of circumferential distributed welding on the outer side of the machine-mounted ring 5, and the round-headed receiving plate 8 has six sets of circumferential distributed welding on the outer side of the cover ring 6.

[0036] By adopting the above technical solution, the outer side of the machine mounting ring 5 has a number of round-headed fixed blocks 7 that, together with the vacuum suction cup 10, can be suctioned at multiple sets of round-headed receiving plates 8 on the outer side of the cover ring 6, so as to achieve a firm seal between the machine door ring 2 and the machine cover 3.

[0037] It should be noted that this utility model is a freeze-drying device for preparing probiotic powder. It involves setting a sealing mechanism 4 at the body 1 of an existing freeze dryer for preparing probiotic powder. The machine-mounted ring 5 and the cover ring 6 of the sealing mechanism 4 are welded and fixed to the outside of the door ring 2 and the cover 3 of the freeze dryer body 1, respectively. Then, the back-mounted screw of the vacuum suction cup 10 passes through the T-shaped through hole 9 of the round-headed fixing block 7 and is tightened by screwing on the flange nut 11. Afterwards, the mounting hole on the back of the back-mounted screw of the vacuum suction cup 10 can be normally connected to common vacuum tubes via pipelines. The air suction cup control system performs on-demand control. After the probiotics to be freeze-dried are placed in the suspended frame inside the freeze dryer body 1 via the suspended tray, the suspension track inside the factory can rotate away from the freeze dryer body 1, facilitating the horizontal movement of the lid 3. When the lid 3 moves to the door ring 2 via the track frame of the freeze dryer body 1, the suspended frame at the top of the lid 3 moves on the double-end plate of the track frame with rollers. The movable bolt between the lid 3 and the rotating suspended frame allows the lid 3 to be pushed forward towards the door ring 2, thus allowing the machine to move forward. The round-head receiving plate 8 of the outer cover ring 6 of the cover 3 abuts against the round-head fixing block 7 of the machine mounting ring 5. At this time, the round-head receiving plate 8, along with the fixing plate 12 and the rubber ring 13, is squeezed into the T-shaped through hole 9 of the round-head fixing block 7. Then, the vacuum suction cup 10 can use the negative pressure of the vacuum suction cup control system to attract the fixing plate 12, thereby pressing the cover 3, where the cover ring 6 is located, against the outside of the machine door ring 2. At this time, the L-shaped short fixing plate 15 is above the L-shaped long fixing plate 14. The insertion pin 16 is inserted into the pin holes of the L-shaped short fixing plate 15 and the L-shaped long fixing plate 14 to perform the insertion pin. After the probiotic powder is freeze-dried, pull out the fixing pin 16 to stop the suction force at the vacuum suction cup 10, and then pull the machine cover 3 outward so that the fixing plate 12 leaves the T-shaped perforation 9 of the round head fixing block 7. At this time, the machine cover 3 can be pulled directly to move to one side of the freeze dryer body 1. Then, the worker operates the suspension track in the factory towards the freeze dryer body 1. The worker can slide the suspended rack inside the freeze dryer body 1 outward to the suspension track, so that the worker can easily take away the material tray containing the freeze-dried probiotic powder for subsequent production preparation.

[0038] It should be noted that this utility model is a freeze-drying device for preparing probiotic powder. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A freeze-drying apparatus for preparing probiotic powder, comprising a freeze dryer body (1), a door ring (2), and a cover (3), wherein the door ring (2) is fixed at the door of the freeze dryer body (1), and a rail frame for suspending the cover (3) for lateral movement is provided at the top of the freeze dryer body (1), characterized in that: It also includes a door sealing mechanism (4), which includes a machine-mounted ring (5), a cover ring (6), a round-headed fixing block (7), a round-headed receiving plate (8), a vacuum suction cup (10), a fixing plate (12), an L-shaped long fixing plate (14), and an L-shaped short fixing plate (15). The machine door ring (2) and the machine cover (3) are respectively welded to the outer sides of the machine-mounted ring (5) and the cover ring (6), and the outer ring walls of the machine-mounted ring (5) and the cover ring (6) are respectively welded to the round-headed fixing block (7) and the round-headed receiving plate (8). A vacuum suction cup (10) is locked at block (7) by flange nut (11). The plate surface of the round head receiving plate (8) has a fixed plate (12) for resisting the vacuum suction cup (10) for suction. An L-shaped long fixed plate (14) is welded to the lower ring wall of the machine ring (5) away from the round head fixed block (7). An L-shaped short fixed plate (15) is welded to the cover ring (6) above the L-shaped long fixed plate (14). A fixed pin (16) is inserted between the L-shaped short fixed plate (15) and the L-shaped long fixed plate (14).

2. The freeze-drying apparatus for preparing probiotic powder according to claim 1, characterized in that: The round-headed fixed block (7) has a T-shaped through hole (9) through the plate surface facing the round-headed receiving plate (8), and a vacuum suction cup (10) is inserted into the large cavity of the T-shaped through hole (9). The back-mounted screw of the vacuum suction cup (10) passes through the small cavity of the T-shaped through hole (9) and is screwed to the flange nut (11).

3. The freeze-drying apparatus for preparing probiotic powder according to claim 2, characterized in that: The fixed plate (12) of the round head receiving plate (8) is embedded in the hole of the T-shaped perforation (9), and the outer side of the fixed plate (12) is fitted with a rubber ring (13) that is squeezed into the T-shaped perforation (9).

4. The freeze-drying apparatus for preparing probiotic powder according to claim 1, characterized in that: The length of the vertical plate of the L-shaped long fixed plate (14) is greater than the length of the vertical plate of the L-shaped short fixed plate (15), and a separation gap is reserved between the bottom plate of the L-shaped long fixed plate (14) and the bottom plate of the L-shaped short fixed plate (15).

5. The freeze-drying apparatus for preparing probiotic powder according to claim 4, characterized in that: The bottom flat surfaces of the L-shaped long plate (14) and the L-shaped short plate (15) are provided with pin holes, and pin rods for inserting pins (16) are inserted into the pin holes of the L-shaped long plate (14) and the L-shaped short plate (15).

6. The freeze-drying apparatus for preparing probiotic powder according to claim 1, characterized in that: The round-headed fixing block (7) has six sets of circular distributed welding on the outer side of the machine-mounted ring (5), and the round-headed receiving plate (8) has six sets of circular distributed welding on the outer side of the cover ring (6).