Anti-adhesion freeze dryer
By improving the structure of the inner and upper trays of the freeze dryer, the inner and upper trays are made detachable and separable, solving the problem of adhesion during the cleaning process and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU RONGXING MASCH EQUIP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing freeze dryers are prone to food sticking during the cleaning process, resulting in low production efficiency.
A structure including an inner tray, an upper tray, a support rod, an insertion hole, a second support rod, a retaining ring, a slot, a locking block, a protrusion, a through hole, a protruding ring, and a retaining ring is designed. Through the combined use of these components, the inner tray and the upper tray are detachable and separable, making cleaning convenient.
This structural design allows for the separation of the inner and upper trays, making it easier to clean up residue, reducing the contact area between food and the tray, minimizing adhesion, and improving cleaning efficiency.
Smart Images

Figure CN224262093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of freeze-drying and storage, and in particular to a freeze dryer that prevents sticking. Background Technology
[0002] A freeze dryer is a machine composed of a refrigeration system, a vacuum system, a heating system, and an electrical instrumentation control system. The freeze dryer works by first freezing water-containing substances into a solid state, and then sublimating the water within them into a gaseous state, thus removing moisture and preserving the substance. This equipment is often used in food production, but because food tends to stick to it during the process, it is often difficult to clean, which can reduce production efficiency. Utility Model Content
[0003] The present invention aims to overcome the shortcomings of existing technologies in terms of the difficulty in cleaning equipment, and provides a freeze dryer that is easy to clean and prevents sticking.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An anti-sticking freeze dryer, comprising:
[0006] The base is placed at the bottom of the dryer;
[0007] The inner tray is placed on the upper surface of the machine base;
[0008] The upper tray is placed above the inner tray and engages with the side of the inner tray, with space between the upper tray and the inner tray.
[0009] A cover is placed on the upper surface of the machine base, and both the inner tray and the upper tray are placed inside the cover. The cover is snapped into the machine base.
[0010] Several support rods are evenly placed on the upper surface of the machine base, and the lower end of each support rod is fixedly connected to the upper surface of the machine base.
[0011] Several insertion holes, each corresponding to a support rod, are located on the upper end face of the support rod.
[0012] Several support rods are evenly distributed on the lower end surface of the inner tray. Each support rod corresponds to a socket. The upper end surface of each support rod is fixedly connected to the lower end surface of the inner tray. The support rods are placed inside the sockets. The inner tray is engaged with the machine base through the cooperation of the support rods and the sockets.
[0013] A working integrator is placed inside the machine base, and the working integrator is fixedly connected to the machine base;
[0014] A control panel is located on the outer surface of the base and is connected to the work integrator.
[0015] When freeze-drying larger volumes of food, insert the second support rod on the inner tray into the hole of the first support rod to install the inner tray. Then, place the food on the inner tray, cover the machine base with the cover, and use the control panel to set the working integrator to start freeze-drying the food. When freeze-drying smaller volumes of food, first place the upper tray on top of the inner tray before placing the food on it. After each operation, if there are any residues that need to be cleaned, simply remove the inner tray and the upper tray for cleaning. The machine base is also easier to clean after the inner tray is removed, thus achieving the purpose of convenient cleaning.
[0016] Preferably, the upper surface of the inner tray is provided with a retaining ring, the retaining ring being coaxial with the inner tray, the lower surface of the retaining ring being fixedly connected to the upper surface of the inner tray, and the outer surface of the retaining ring being flush with the outer surface of the inner tray. The upper tray is engaged with the inner tray by the retaining ring. The retaining ring can prevent residue from falling onto the inner tray.
[0017] Preferably, the retaining ring has several slots evenly distributed on its upper surface, and these slots communicate with the internal space of the retaining ring. The upper tray has several blocks evenly distributed on its sides, and these blocks are fixedly connected to the upper tray. Each block corresponds to a slot, and the blocks are placed within the slots. The upper tray engages with the inner tray through the cooperation of the slots and blocks. The slots and blocks facilitate the securing of the upper tray.
[0018] Preferably, the inner tray has several raised strips that are parallel to each other and evenly distributed on the upper surface of the inner tray. The raised strips are positioned within the inner ring of the retaining ring and are fixedly connected to the upper surface of the inner tray. The height of the raised strips is less than the distance between the inner tray and the upper tray. The raised strips reduce contact between the food and the inner tray, thus reducing adhesion.
[0019] Preferably, the upper tray has a plurality of through holes, which are evenly distributed on the upper tray, and the distance between adjacent through holes is smaller than the distance between adjacent protrusions. The through holes allow crumbs to fall onto the inner tray and reduce the contact area between the food and the inner tray.
[0020] Preferably, the upper tray is provided with a plurality of raised rings, which surround the through hole and are coaxial with it. The raised rings are fixedly connected to the upper end face of the upper tray. The raised rings can reduce the contact between food and the upper tray, thus reducing adhesion.
[0021] Preferably, a retaining ring is provided on the upper surface of the base, the retaining ring surrounds the inner tray, the retaining ring is coaxial with the base, and the lower end face of the retaining ring is fixedly connected to the upper end face of the base. The retaining ring is placed inside the cover, and the cover is engaged with the base by the retaining ring. The retaining ring can stabilize the installation of the cover and increase the sealing performance.
[0022] The beneficial effects of this utility model are: it facilitates cleaning; the retaining ring can block residues falling onto the inner tray; the slot and the locking block facilitate fixing the upper tray; the raised strip can reduce the contact between food and the inner tray, reducing adhesion; the through hole can allow crumbs to fall onto the inner tray and reduce the contact area between food and the inner tray; the raised ring can reduce the contact between food and the upper tray, reducing adhesion; the locking ring can stabilize the installation of the cover and increase the sealing performance. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a cross-sectional view of the main view of this utility model;
[0025] Figure 3 yes Figure 2 A cross-sectional view of AA;
[0026] Figure 4 yes Figure 2 A magnified view of detail B;
[0027] Figure 5 yes Figure 2 A magnified view of detail C;
[0028] Figure 6 yes Figure 3 A magnified view of detail D.
[0029] In the diagram: 1. Base, 2. Inner tray, 3. Upper tray, 4. Cover, 5. Support rod one, 6. Insertion hole, 7. Support rod two, 8. Retaining ring, 9. Slot, 10. Locking block, 11. Protrusion, 12. Through hole, 13. Protrusion ring, 14. Snap ring, 15. Working integrator, 16. Control panel. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0031] like Figures 1 to 3 In one embodiment, an anti-adhesion freeze dryer includes: an inner tray 2 placed on the upper surface of the machine base 1; an upper tray 3 placed above the inner tray 2 and engaged with the side of the inner tray 2, with a space between the upper tray 3 and the inner tray 2.
[0032] Cover 4 is placed on the upper surface of base 1. Inner tray 2 and upper tray 3 are both placed inside cover 4. Cover 4 is snapped into base 1. Several support rods 5 are evenly placed on the upper surface of base 1. The lower end of support rod 5 is fixedly connected to the upper surface of base 1. Several insertion holes 6 correspond one-to-one with support rod 5. Insertion holes 6 are placed on the upper end of support rod 5. Several support rods 7 are evenly distributed on the lower surface of inner tray 2. Support rods 7 correspond one-to-one with insertion holes 6. The upper end of support rods 7 is fixedly connected to the lower end of inner tray 2. Support rods 7 are placed inside insertion holes 6. Inner tray 2 is snapped into base 1 through the cooperation of support rods 7 and insertion holes 6. Working integrator 15 is placed inside base 1. Working integrator 15 is fixedly connected to base 1. Control panel 16 is placed on the outer surface of base 1. Control panel 16 is connected to working integrator 15.
[0033] like Figure 2 , Figure 3 and Figure 6 As shown, the retaining ring 8 is coaxial with the inner tray 2, the lower end face of the retaining ring 8 is fixedly connected to the upper end face of the inner tray 2, the outer side of the retaining ring 8 is flush with the outer side of the inner tray 2, and the upper tray 3 is snapped into the inner tray 2 through the retaining ring 8.
[0034] like Figure 3 and Figure 6 As shown, several slots 9 are evenly distributed on the upper surface of the retaining ring 8. The slots 9 are connected to the internal space of the retaining ring 8. Several blocks 10 are evenly distributed on the side of the upper tray 3. The blocks 10 are fixedly connected to the upper tray 3. The blocks 10 correspond one-to-one with the slots 9. The blocks 10 are placed in the slots 9. The upper tray 3 is engaged with the inner tray 2 through the cooperation of the slots 9 and the blocks 10.
[0035] like Figure 2 and Figure 4 As shown, several protrusions 11 are parallel to each other and evenly distributed on the upper surface of the inner tray 2. The protrusions 11 are placed inside the inner ring of the retaining ring 8. The protrusions 11 are fixedly connected to the upper surface of the inner tray 2. The height of the protrusions 11 is less than the distance between the inner tray 2 and the upper tray 3. The protrusions 11 greatly reduce the contact area between the food and the inner tray 2, thereby reducing adhesion.
[0036] like Figure 3 and Figure 4 As shown, several through holes 12 are evenly distributed on the upper tray 3, and the distance between adjacent through holes 12 is less than the distance between adjacent protrusions 11.
[0037] like Figure 4 As shown, several protruding rings 13 surround the through hole 12. The protruding rings 13 are coaxial with the through hole 12 and are fixedly connected to the upper end face of the upper tray 3. The protruding rings 13 greatly reduce the contact area between the food and the upper tray 3, thereby reducing adhesion.
[0038] like Figure 2 and Figure 5 As shown, the retaining ring 14 surrounds the inner tray 2. The retaining ring 14 is coaxial with the machine base 1. The lower end face of the retaining ring 14 is fixedly connected to the upper end face of the machine base 1. The retaining ring 14 is placed inside the cover 4. The cover 4 is snapped into the machine base 1 through the retaining ring 14.
[0039] When freeze-drying larger volumes of food, insert the second support rod 7 on the inner tray 2 into the insertion hole 6 of the first support rod 5 to install the inner tray 2. Then place the food on the inner tray 2 and cover the base 1 with the cover 4. The outer side of the retaining ring 14 is tightly connected to the inner side of the cover 4. Use the control panel 16 to set the working integrator 15 to start freeze-drying the food. The working integrator 15 can perform the work of existing technologies such as refrigeration system, vacuum system, and heating system, which will not be described in detail here. When freeze-drying smaller volumes of food, first place the upper tray 3 above the inner tray 2. The upper tray 3 is secured to the retaining ring 8 with the stop block 10, and then place the food. In this way, even if there are any food residues, they will fall into the inner tray 2 through the through hole 12. After each operation, if there are any residues that need to be cleaned, simply remove the inner tray 2 and the upper tray 3 for cleaning. The base 1 is also easier to clean after the inner tray 2 is removed, achieving the purpose of convenient cleaning.
Claims
1. A freeze dryer for preventing sticking, characterized in that it comprises: The base (1) is placed at the bottom of the dryer; The inner tray (2) is placed on the upper surface of the machine base (1); The upper tray (3) is placed above the inner tray (2) and snaps into the side of the inner tray (2), with space between the upper tray (3) and the inner tray (2); Cover (4) is placed on the upper surface of the machine base (1). The inner tray (2) and the upper tray (3) are both placed inside the cover (4). The cover (4) is snapped into the machine base (1). Several support rods (5) are evenly placed on the upper surface of the machine base (1), and the lower surface of the support rods (5) is fixedly connected to the upper surface of the machine base (1). Several insertion holes (6) correspond one-to-one with the support rod (5), and the insertion holes (6) are placed on the upper end surface of the support rod (5); Several support rods (7) are evenly distributed on the lower end surface of the inner tray (2). Each support rod (7) corresponds to a socket (6). The upper end surface of the support rod (7) is fixedly connected to the lower end surface of the inner tray (2). The support rod (7) is placed inside the socket (6). The inner tray (2) is engaged with the machine base (1) through the cooperation of the support rods (7) and the socket (6). The working integrator (15) is placed inside the machine base (1), and the working integrator (15) is fixedly connected to the machine base (1); A control panel (16) is placed on the outer surface of the base (1) and is connected to the work integrator (15).
2. A freeze-drying apparatus according to claim 1, wherein The upper surface of the inner tray (2) is provided with a retaining ring (8), the retaining ring (8) is coaxial with the inner tray (2), the lower surface of the retaining ring (8) is fixedly connected to the upper surface of the inner tray (2), the outer side of the retaining ring (8) is flush with the outer side of the inner tray (2), and the upper tray (3) is engaged with the inner tray (2) through the retaining ring (8).
3. A freeze-drying apparatus according to claim 2, wherein The retaining ring (8) is provided with several slots (9), which are evenly distributed on the upper surface of the retaining ring (8). The slots (9) are connected to the internal space of the retaining ring (8). The upper tray (3) is provided with several blocks (10), which are evenly distributed on the side of the upper tray (3). The blocks (10) are fixedly connected to the upper tray (3). The blocks (10) correspond one-to-one with the slots (9). The blocks (10) are placed in the slots (9). The upper tray (3) is engaged with the inner tray (2) through the cooperation of the slots (9) and the blocks (10).
4. A freeze-drying apparatus according to claim 3, wherein The inner tray (2) is provided with a number of protrusions (11). The protrusions (11) are parallel to each other and evenly distributed on the upper surface of the inner tray (2). The protrusions (11) are placed in the inner ring of the retaining ring (8). The protrusions (11) are fixedly connected to the upper surface of the inner tray (2). The height of the protrusions (11) is less than the distance between the inner tray (2) and the upper tray (3).
5. A freeze-drying apparatus according to claim 4, wherein The upper tray (3) is provided with a number of through holes (12), which are evenly distributed on the upper tray (3). The distance between adjacent through holes (12) is less than the distance between adjacent protrusions (11).
6. A freeze-drying apparatus according to claim 5, wherein The upper tray (3) is provided with several protruding rings (13), which surround the through hole (12). The protruding rings (13) are coaxial with the through hole (12) and are fixedly connected to the upper end face of the upper tray (3).
7. The anti-adherent freeze-dryer of claim 1 wherein, The upper surface of the base (1) is provided with a retaining ring (14), which surrounds the inner tray (2). The retaining ring (14) is coaxial with the base (1), and the lower surface of the retaining ring (14) is fixedly connected to the upper surface of the base (1). The retaining ring (14) is placed inside the cover (4), and the cover (4) is engaged with the base (1) through the retaining ring (14).