Vacuum freeze dryer

Abstract

The utility model relates to the technical field of vacuum freeze-drying machines, and discloses a vacuum freeze-drying machine which comprises a vacuum freeze-drying machine body. According to the vacuum freeze dryer, through the arrangement of the limiting assembly and the fixing assembly, in the final stage of sample drying, a worker starts a fan and a heating plate, the heating plate can promote sublimation of moisture in a sample, especially for a thick sample or a sample with the high moisture content, it is ensured that the sample is dried more thoroughly, and internal moisture residues are avoided; the structure and form of the sample are kept, a more ideal drying effect is achieved, the fan ensures that the temperature in the whole drying chamber is more uniform through circulation and uniform distribution of heated air, temperature gradient and local hot spots are prevented from being formed, and it is ensured that the surface and the interior of the sample can receive uniform heat; the condition that the sample is locally overheated or overcooled is avoided, meanwhile, sublimated moisture can be effectively taken away by air, and the drying process is quicker and more efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum freeze drying machines, in particular to a vacuum freeze drying machine. Background Art

[0002] A vacuum freeze dryer is a device used to process heat-sensitive substances. It mainly uses freezing and vacuum drying techniques to quickly freeze the substance into a solid state at low temperatures, and then removes moisture through reduced pressure drying while maintaining its chemical structure and activity. In the fields of ecological environment, water quality and geological surveys, vacuum freeze dryers play an important role, especially in processing samples and protecting environmentally sensitive substances. Vacuum freeze dryers can be used to process microbial samples collected from the air and soil, maintaining the original state of the samples, and helping to accurately assess the microbial population and its activity in the environment.

[0003] In actual use, it is not easy to take out multiple sample trays at the same time in the existing vacuum freeze dryer, which has certain limitations.

[0004] Therefore, it is necessary to invent a vacuum freeze dryer to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem solved by the utility model is to provide a vacuum freeze dryer which is highly practical, can be operated simply and has a relatively simple structure, thereby solving the problem in the above background technology that it is not easy to take out multiple sample trays at the same time.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a vacuum freeze dryer, comprising a vacuum freeze dryer main body, both sides of the vacuum freeze dryer main body are connected with fixed blocks by screw threads, the bottoms of the two fixed blocks are fixedly connected with fixed frames, the interior of the fixed frames is fixedly connected with a limiting component, the interior of the limiting component is connected with a plurality of fans by screw threads, the top of the limiting component is fixedly connected with adjusting columns all around, the tops of the four adjusting columns are fixedly connected with the fixing component, the top of the fixing component is connected with a plurality of heating plates by screw threads, the interior of the vacuum freeze dryer main body is slidably connected with a placement component, the interior of the placement component is plugged with a plurality of partition plates, and the interior of the vacuum freeze dryer main body is fixedly connected with a pushing component.

[0009] As a further solution of the utility model, the limiting assembly includes a fixed square plate fixedly connected to the inside of the fixed square frame, the top of the fixed square plate is connected to the fixed frame by screw threads, the top of the fixed frame is connected to a plurality of fans by screw threads, and the top of the fixed frame is fixedly connected with adjustment columns all around.

[0010] As a further solution of the utility model, the fixing assembly includes a limit frame fixedly connected to the top of the adjusting column, the top of the limit frame is fixedly connected to two connecting plates, and the tops of the two connecting plates are screwed to a plurality of heating plates.

[0011] As a further solution of the utility model, the placement assembly includes a plurality of storage frames slidably connected to the inside of the vacuum freeze dryer body, handles are fixedly connected to the sides of the storage frames, and a plurality of partition plates are inserted into the interior of the storage frames.

[0012] As a further solution of the utility model, the pushing assembly includes a hydraulic cylinder fixedly connected to the inside of the vacuum freeze dryer body, a piston rod is slidably connected to the side of the hydraulic cylinder, and a push plate is fixedly connected to the side of the piston rod.

[0013] As a further solution of the utility model, the bottom of the fixed frame is fixedly connected with support columns on all four sides, and the bottom of the support columns is fixedly connected with universal wheels.

[0014] As a further solution of the utility model, a connecting plate is connected to the side of the fixed frame through screw threads, and a temperature controller is fixedly connected to the side of the connecting plate.

[0015] (III) Beneficial effects

[0016] The utility model provides a vacuum freeze dryer, which has the following beneficial effects:

[0017] 1. This vacuum freeze dryer, through the setting of limiting components and fixing components, in the final stage of sample drying, the personnel start the fan and heating plate. The heating plate can promote the sublimation of moisture inside the sample, especially for thick samples or samples with high water content, to ensure that the sample is dried more thoroughly, avoid internal moisture residue, maintain the structure and morphology of the sample, and achieve a more ideal drying effect. The fan circulates and evenly distributes the heated air to ensure a more uniform temperature in the entire drying room, prevent the formation of temperature gradients and local hot spots, ensure that the surface and interior of the sample can receive uniform heat, avoid local overheating or overcooling of the sample, and effectively help the air take away the sublimated moisture, making the drying process faster and more efficient.

[0018] 2. The vacuum freeze dryer is provided with a placement component and a push component. When in use, the personnel insert the partition plate into the storage frame as needed, and then put the sample into the storage frame, and then put the storage frame into the main body of the vacuum freeze dryer. The partition plate can improve the space utilization efficiency of the storage frame, so that more samples can be dried at the same time, and the production capacity of the equipment is improved. After the drying is completed, the personnel start the hydraulic cylinder, and the piston rod drives the push plate to push all the storage frames with samples out of the drying chamber, and the unloading of the storage frames is completed quickly, which saves operation time and reduces the physical exertion of personnel, improves the work efficiency of personnel, and at the same time can reduce the possibility of human operation errors, ensure the accurate pushing out of the storage frame, and avoid unnecessary damage or delay to the sample or equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fixed component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the components of the utility model.

[0023] In the figure: 1. Vacuum freeze drying machine body; 2. Fixed block; 3. Fixed square frame; 4. Limiting assembly; 401. Fixed square plate; 402. Fixed frame; 5. Fan; 6. Adjusting column; 7. Fixed assembly; 701. Limiting frame; 702. Connecting piece; 8. Heating plate; 9. Placement assembly; 901. Storage frame; 902. Handle; 10. Partition plate; 11. Pushing assembly; 1101. Hydraulic cylinder; 1102. Piston rod; 1103. Pushing plate; 12. Support column; 13. Universal wheel; 14. Connecting plate; 15. Temperature controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4The utility model provides a technical solution: a vacuum freeze dryer, comprising a vacuum freeze dryer body 1, both sides of the vacuum freeze dryer body 1 are connected with fixed blocks 2 by screw threads, the bottoms of the two fixed blocks 2 are fixedly connected with fixed frames 3, the fixed frames 3 are internally fixedly connected with a limiting component 4, through the arrangement of the limiting component 4 and the fixing component 7, the heating plate 8 can promote the sublimation of moisture inside the sample, especially for thick samples or samples with high water content, to ensure that the sample is dried more thoroughly, avoid internal moisture residue, maintain the structure and shape of the sample, and achieve a more ideal drying effect, the fan 5 ensures that the temperature in the entire drying chamber is more uniform by circulating and evenly distributing the heated air, prevents the formation of temperature gradients and local hot spots, ensures that the surface and interior of the sample can receive uniform heat, avoids local overheating or overcooling of the sample, and can effectively help the air take away the sublimated moisture, making the drying process faster and more efficient, the internal of the limiting component 4 A plurality of fans 5 are connected by screw threads, and adjusting columns 6 are fixedly connected to the top of the limit component 4 all around, and the tops of the four adjusting columns 6 are fixedly connected to the fixing components 7, and the tops of the fixing components 7 are connected to a plurality of heating plates 8 by screw threads. A placement component 9 is slidably connected to the inside of the vacuum freeze dryer body 1. By setting the placement component 9 and the pushing component 11, the partition plate 10 can improve the space utilization efficiency of the storage frame 901, so that more samples can be dried at the same time, and the production capacity of the equipment is improved. The pushing structure can push all the storage frames 901 for placing samples out of the drying chamber, quickly complete the unloading of the storage frames 901, save operation time and reduce the physical exertion of personnel, improve the work efficiency of personnel, and at the same time reduce the possibility of human operation errors, ensure the accurate pushing out of the storage frame 901, and avoid unnecessary damage or delay to samples or equipment. A plurality of partition plates 10 are plugged into the inside of the placement component 9, and the inside of the vacuum freeze dryer body 1 is fixedly connected to the pushing component 11;

[0026] See also Figure 2 The limiting component 4 includes a fixed square plate 401 fixedly connected to the inside of the fixed square frame 3, the top of the fixed square plate 401 is connected to a fixed frame 402 by screw threads, the top of the fixed frame 402 is connected to a plurality of fans 5 by screw threads, and the top of the fixed frame 402 is fixedly connected to adjustment columns 6 on all sides. Through the setting of the limiting component 4, the fan 5 circulates and evenly distributes the heated air to ensure that the temperature in the entire drying chamber is more uniform, prevent the formation of temperature gradients and local hot spots, ensure that the surface and interior of the sample can receive uniform heat, avoid the occurrence of local overheating or overcooling of the sample, and at the same time effectively help the air take away the sublimated moisture, making the drying process faster and more efficient;

[0027] See also Figure 3The fixing component 7 includes a limit frame 701 fixedly connected to the top of the adjusting column 6, and two connecting pieces 702 are fixedly connected to the top of the limit frame 701. The tops of the two connecting pieces 702 are screwed and connected to a plurality of heating plates 8. Through the setting of the fixing component 7, the heating plates 8 can promote the sublimation of moisture inside the sample, especially for thick samples or samples with high water content, to ensure that the sample is dried more thoroughly, avoid residual moisture inside, maintain the structure and morphology of the sample, and achieve a more ideal drying effect;

[0028] See also Figure 4 The placement component 9 includes a plurality of storage frames 901 slidably connected to the inside of the vacuum freeze dryer body 1, a handle 902 is fixedly connected to the side of the storage frame 901, and a plurality of partition plates 10 are inserted into the inside of the storage frame 901. Through the arrangement of the placement component 9, the partition plates 10 can improve the space utilization efficiency of the storage frame 901, so that more samples can be dried at the same time, thereby improving the production capacity of the equipment;

[0029] See also Figure 4 The pushing component 11 includes a hydraulic cylinder 1101 fixedly connected to the inside of the vacuum freeze dryer body 1, and a piston rod 1102 is slidably connected to the side of the hydraulic cylinder 1101, and a push plate 1103 is fixedly connected to the side of the piston rod 1102. Through the setting of the pushing component 11, the pushing structure can push all the storage frames 901 for placing samples out of the drying chamber, quickly complete the unloading of the storage frames 901, save operation time and reduce the physical consumption of personnel, improve the work efficiency of personnel, and at the same time reduce the possibility of human operation errors, ensure the accurate pushing out of the storage frames 901, and avoid unnecessary damage or delay to samples or equipment;

[0030] See also Figure 1 , the bottom of the fixed frame 3 is fixedly connected with support columns 12 all around, and the bottom of the support columns 12 is fixedly connected with universal wheels 13;

[0031] See also Figure 1 A connecting plate 14 is connected to the side of the fixed frame 3 via screw threads, and a temperature controller 15 is fixedly connected to the side of the connecting plate 14 .

[0032] The model of the temperature controller 15 is: Omron E5CC. The above parameters and models can be selected according to actual conditions.

[0033] In the utility model, the working steps of the device are as follows:

[0034] The first step: when in use, the personnel insert the partition plate 10 into the storage frame 901 as needed, and then put the sample into the storage frame 901, and then put the storage frame 901 into the vacuum freeze dryer body 1. The partition plate 10 can improve the space utilization efficiency of the storage frame 901, so that more samples can be dried at the same time, and the production capacity of the equipment is improved. After the drying is completed, the personnel start the hydraulic cylinder 1101, and the piston rod 1102 drives the push plate 1103 to push all the storage frames 901 with samples out of the drying chamber, and quickly complete the unloading of the storage frame 901, saving operation time and reducing the physical consumption of personnel, improving the work efficiency of personnel, and at the same time reducing the possibility of human operation errors, ensuring the accurate push-out of the storage frame 901, and avoiding unnecessary damage or delay to samples or equipment;

[0035] Step 2: In the final stage of sample drying, personnel start the fan 5 and the heating plate 8. The heating plate 8 can promote the sublimation of moisture inside the sample, especially for thick samples or samples with high water content, to ensure that the sample is dried more thoroughly, avoid internal moisture residue, maintain the structure and morphology of the sample, and achieve a more ideal drying effect. The fan 5 ensures a more uniform temperature in the entire drying room by circulating and evenly distributing the heated air, prevents the formation of temperature gradients and local hot spots, ensures that the surface and interior of the sample can receive uniform heat, avoids local overheating or overcooling of the sample, and can effectively help the air take away the sublimated moisture, making the drying process faster and more efficient.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum freeze dryer, comprising a vacuum freeze dryer body (1), characterized in that: Both sides of the vacuum freeze dryer body (1) are connected to fixed blocks (2) by screw threads, the bottoms of the two fixed blocks (2) are fixedly connected to fixed frames (3), the interior of the fixed frames (3) is fixedly connected to a limiting component (4), the interior of the limiting component (4) is connected to a plurality of fans (5) by screw threads, the top of the limiting component (4) is fixedly connected to adjustment columns (6) on all sides, the tops of the four adjustment columns (6) are fixedly connected to a fixing component (7), the top of the fixing component (7) is connected to a plurality of heating plates (8) by screw threads, the interior of the vacuum freeze dryer body (1) is slidably connected to a placement component (9), the interior of the placement component (9) is plugged with a plurality of partition plates (10), and the interior of the vacuum freeze dryer body (1) is fixedly connected to a pushing component (11).

2. A vacuum freeze dryer according to claim 1, characterized in that: The limiting assembly (4) comprises a fixed square plate (401) fixedly connected to the inside of the fixed square frame (3); the top of the fixed square plate (401) is connected to a fixed frame (402) via screw threads; the top of the fixed frame (402) is connected to a plurality of fans (5) via screw threads; and the top of the fixed frame (402) is fixedly connected to adjustment columns (6) on all sides.

3. A vacuum freeze dryer according to claim 1, characterized in that: The fixing assembly (7) comprises a limit frame (701) fixedly connected to the top of the adjusting column (6), the top of the limit frame (701) is fixedly connected to two connecting pieces (702), and the tops of the two connecting pieces (702) are connected to a plurality of heating plates (8) via screw threads.

4. A vacuum freeze dryer according to claim 1, characterized in that: The placement assembly (9) comprises a plurality of storage frames (901) slidably connected to the interior of the vacuum freeze drying machine body (1); handles (902) are fixedly connected to the sides of the storage frames (901); and a plurality of partition plates (10) are inserted into the interior of the storage frames (901).

5. A vacuum freeze dryer according to claim 1, characterized in that: The pushing assembly (11) comprises a hydraulic cylinder (1101) fixedly connected to the inside of the vacuum freeze dryer body (1), a piston rod (1102) being slidably connected to the side of the hydraulic cylinder (1101), and a push plate (1103) being fixedly connected to the side of the piston rod (1102).

6. A vacuum freeze dryer according to claim 1, characterized in that: The bottom of the fixed square frame (3) is fixedly connected to support columns (12) on all sides, and the bottom of the support columns (12) is fixedly connected to universal wheels (13).

7. A vacuum freeze dryer according to claim 1, characterized in that: A connecting plate (14) is connected to the side of the fixed frame (3) via screw threads, and a temperature controller (15) is fixedly connected to the side of the connecting plate (14).

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