Food low-temperature circulation sterilization unit
By introducing microwave emitting components and a gear and rack system into the low-temperature circulating sterilization unit for food, the problem of incomplete sterilization in dead corners during low-temperature food sterilization has been solved, achieving 360° sterilization without dead corners, improving sterilization efficiency and shortening sterilization time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- METHUSELAH (SHANGHAI) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
AI Technical Summary
Existing low-temperature sterilization technologies have the problem of incomplete sterilization in food processing, especially spray sterilization methods, which require extended sterilization time for small-packaged foods to ensure effectiveness.
The sterilization mechanism combines a microwave emitting component and a gear and rack mechanism. The microwave emitting component emits 2450MHz microwaves for sterilization, and the gear and rack system driven by a motor realizes the vertical reciprocating and rotational movement of the sterilization component, ensuring 360° sterilization without dead angles.
It achieves thorough low-temperature sterilization of food, improving sterilization efficiency and effectiveness while shortening sterilization time.
Smart Images
Figure CN224482851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of food processing, specifically to a low-temperature circulating sterilization unit for food. Background Technology
[0002] Low-temperature sterilization inactivates microorganisms through physical means (such as plasma, ultra-high pressure, microwave, etc.), avoiding the damage of heat-sensitive components caused by high temperatures. The reactive oxygen species and ultraviolet light generated by low-temperature atmospheric pressure plasma (CAP) can cause oxidative damage to pathogens, while preserving the functional substances in food.
[0003] Low-temperature sterilization mainly uses ultraviolet light to cause oxidative damage to pathogens. However, ultraviolet lamps are usually fixed inside the sterilizer. On the one hand, they do not transfer heat to food as quickly as water bath sterilization. As a result, spray sterilization is only used for sterilizing small packages of food (such as small cans of food, small bags of milk, etc.). On the other hand, in order to prevent incomplete sterilization, the sterilization time usually needs to be increased. Summary of the Invention
[0004] The purpose of this invention is to provide a low-temperature circulating sterilization unit for food to solve the above-mentioned defects caused by the prior art.
[0005] A low-temperature circulating sterilization unit for food includes a sterilization shell, a dry vortex pump, and a motor. A door is hinged to one side of the sterilization shell, and a viewing window is connected through one side of the door. The output end of the dry vortex pump is connected through the top of the sterilization shell. A sterilization mechanism is installed inside the sterilization shell, performing vertical reciprocating movement within the shell to facilitate thorough low-temperature sterilization of the food. A positioning mechanism is installed on one side of the sterilization mechanism, positioning and rotating multiple groups of sterilization materials to achieve 360° sterilization without dead angles.
[0006] Preferably, the sterilization mechanism includes guide rods, lead screws, an instrument rack, a microwave emitting assembly, and a motor. The guide rods are symmetrically arranged inside the sterilization housing. The instrument rack is connected through the guide rods. The lead screw is connected through the outer side of the instrument rack. The microwave emitting assembly is connected to the outer side of the instrument rack. The motor is installed inside the sterilization housing. The instrument rack is located on one side inside the sterilization housing.
[0007] Preferably, the motor is connected to the bottom end of the lead screw via a drive gear connected to the output end.
[0008] Preferably, the positioning mechanism includes a tray, a support, a mesh cage, a drive gear, and a driven gear. The tray is disposed inside the sterilization shell. The tray is connected to the bottom end of the support through a groove at its top. The two sides of the mesh cage are engaged with the outside of the support. The driven gear is connected to the bottom end of the tray. The drive gear is meshed with one side of the driven gear. The drive gear is installed inside the sterilization shell.
[0009] Preferably, the cage is connected to the bottom of the tray via a bracket that engages on both sides.
[0010] Preferably, the tray is connected to the driven gear via a bottom shaft.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] 1. This device uses a microwave emitting component on the sterilization mechanism. The microwave emitting component emits 2450MHz microwaves to penetrate the food. Heat is generated through polar molecular friction (75-80℃), which, combined with non-thermal effects, destroys the DNA structure of the bacteria. The rotational motion of the motor is converted into the linear reciprocating motion of the sterilization component, with a positioning accuracy of ±0.1mm.
[0013] 2. By controlling the gear ratio between the drive gear and the driven gear, the rotation speed of the driven gear and the lead screw is controlled, which directly determines the conversion efficiency of the output speed and torque. During the process of rotating and lifting the lead screw driven by the motor, the drive gear drives the driven gear to rotate, the driven gear drives the tray to rotate, and the tray drives multiple sets of supports and materials to rotate, thereby sterilizing the materials without dead angles. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the internal structure of the sterilization shell in this utility model.
[0016] Figure 3 This is a front view schematic diagram of the sterilization shell structure in this utility model.
[0017] Figure 4 This is a schematic diagram of the positioning mechanism itself in this utility model.
[0018] Figure 5 This is a schematic diagram of the sterilization mechanism in this utility model.
[0019] in:
[0020] 1. Sterilization shell; 2. Door; 3. Viewing window; 4. Dry vortex pump; 5. Sterilization mechanism; 6. Guide rod; 7. Lead screw; 8. Instrument rack; 9. Microwave emitting assembly; 10. Positioning mechanism; 11. Tray; 12. Support; 13. Wire mesh cage; 14. Drive gear; 15. Motor; 16. Driven gear. Detailed Implementation
[0021] 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.
[0022] like Figures 1 to 5 As shown, a low-temperature circulating sterilization unit for food includes a sterilization shell 1, a dry vortex pump 4, and a motor 15. A door 2 is hinged to one side of the sterilization shell 1, and a viewing window 3 is connected through one side of the door 2. The output end of the dry vortex pump 4 is connected through the top of the sterilization shell 1. A sterilization mechanism 5 is provided inside the sterilization shell 1. The sterilization mechanism 5 performs vertical reciprocating movement within the sterilization shell 1, thereby facilitating low-temperature sterilization of food without dead angles. A positioning mechanism 10 is provided on one side of the sterilization mechanism 5. The positioning mechanism 10 positions and rotates multiple groups of sterilization materials, thereby cooperating with the sterilization mechanism 5 to perform 360° sterilization without dead angles.
[0023] In this embodiment, the sterilization mechanism 5 includes a guide rod 6, a lead screw 7, an instrument rack 8, a microwave emitting component 9, and a motor 15. The guide rod 6 is symmetrically arranged inside the sterilization housing 1. The guide rod 6 is connected through the instrument rack 8. The lead screw 7 is connected through the outer side of the instrument rack 8. The microwave emitting component 9 is connected to the outer side of the instrument rack 8. The motor 15 is installed inside the sterilization housing 1. The instrument rack 8 is located on one side inside the sterilization housing 1. The lead screw 7 drives the instrument rack 8 to move vertically up and down, thereby moving the microwave emitting component 9 vertically back and forth, and thus sterilizing materials at different locations.
[0024] In this embodiment, the motor 15 is connected to the bottom end of the lead screw 7 via the drive gear 14 connected to the output end. When the drive gear 14 drives the driven gear 16 to mesh and rotate, the driven gear 16 decelerates the tray 11.
[0025] In this embodiment, the positioning mechanism 10 includes a tray 11, a support 12, a mesh cage 13, a drive gear 14, and a driven gear 16. The tray 11 is disposed inside the sterilization housing 1. The tray 11 is connected to the bottom end of the support 12 through a groove at its top. The two sides of the mesh cage 13 are engaged with the outside of the support 12. The driven gear 16 is connected to the bottom end of the tray 11. The drive gear 14 is meshed with one side of the driven gear 16. The drive gear 14 is installed inside the sterilization housing 1. The drive gear 14 drives the lead screw 7 to move the microwave emitting assembly 9 connected to the outside of the lead screw 7 up and down.
[0026] In this embodiment, the mesh cage 13 is connected to the bottom of the tray 11 via a bracket 12 that engages on both sides. The tray 11 drives the bracket 12 to rotate, thereby performing a repositioning and sterilization process on the materials.
[0027] In this embodiment, the tray 11 is connected to the driven gear 16 via a bottom shaft, and the rotation speed of the tray 11 is controlled by the gear ratio of the driven gear 14 and the driven gear 16.
[0028] In practical applications, this type of low-temperature circulating sterilization unit for food includes the following tasks:
[0029] Step 1: The operator first opens the box door 2, then installs the microwave emitting component 9 on the outside of the instrument rack 8, and positions the microwave emitting component 9 and the outside of the instrument rack 8 with fasteners. Then, different types of materials are placed inside the mesh box 13. By holding the two sides of the mesh box 13, the mesh box 13 is inserted into the groove opened on the outside of the instrument rack 8, thereby achieving the positioning and limiting of the mesh box 13.
[0030] Step 2: Then close the door 2 on one side of the sterilization housing 1. The operator turns on the dry vortex pump 4. The eccentric rotor inside the dry vortex pump 4 drives the blades to rotate. The blades contact the pump chamber to form a periodically changing sealed space. Gas is drawn in through volume expansion, compressed and discharged outside the pump, thereby reducing the pressure on the sterilization housing 1. This, in conjunction with the subsequent microwave emission component 9, sterilizes the material.
[0031] Step 3: The operator turns on the motor 15, which drives the drive gear 14 and the lead screw 7 at the top to rotate. The lead screw 7 drives the instrument rack 8 to rise vertically. The guide rods 6 on both sides guide the instrument rack 8. The microwave emitting component 9 is turned on. After the microwave is generated by the magnetron, it is transmitted to the target area through the waveguide (metal rectangular or circular pipe). The metal material of the inner wall of the sterilization shell 1 guides the microwave to propagate in one direction through continuous reflection.
[0032] Step 4: Simultaneously, the motor 15 drives the drive gear 14 to rotate, which in turn drives the driven gear 16 on one side to mesh, which in turn drives the tray 11 to rotate, which in turn drives the support 12 and multiple sets of mesh boxes 13 to rotate, thereby allowing the mesh boxes 13 and the microwave emitting component 9 to be sterilized at different angles. After sterilization is completed, the motor 15 and the microwave emitting component 9 are turned off, and the position of the support 12 is observed through the viewing window 3.
[0033] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.
Claims
1. A low-temperature circulating sterilization unit for food, characterized in that: The device includes a sterilization housing (1), a dry vortex pump (4), and a motor (15). A door (2) is hinged to one side of the sterilization housing (1), and a viewing window (3) is connected through one side of the door (2). The output end of the dry vortex pump (4) is connected through the top of the sterilization housing (1). A sterilization mechanism (5) is provided inside the sterilization housing (1). The sterilization mechanism (5) performs vertical reciprocating movement within the sterilization housing (1). A positioning mechanism (10) is provided on one side of the sterilization mechanism (5). The positioning mechanism (10) performs positioning and rotation processing on multiple sets of sterilization materials, thereby cooperating with the sterilization mechanism (5) to perform 360° sterilization without dead angles.
2. The food low-temperature circulating sterilization unit according to claim 1, characterized in that: The sterilization mechanism (5) includes a guide rod (6), a lead screw (7), an instrument rack (8), a microwave emitting assembly (9), and a motor (15). The guide rod (6) is symmetrically arranged inside the sterilization housing (1). The guide rod (6) is connected through the instrument rack (8). The lead screw (7) is connected through the outside of the instrument rack (8). The microwave emitting assembly (9) is connected to the outside of the instrument rack (8). The motor (15) is installed inside the sterilization housing (1). The instrument rack (8) is located on one side inside the sterilization housing (1).
3. The food low-temperature circulating sterilization unit according to claim 2, characterized in that: The motor (15) is connected to the bottom end of the lead screw (7) via the drive gear (14) connected to the output end.
4. The food low-temperature circulating sterilization unit according to claim 1, characterized in that: The positioning mechanism (10) includes a tray (11), a support (12), a mesh cage (13), a drive gear (14), and a driven gear (16). The tray (11) is located inside the sterilization shell (1). The tray (11) is connected to the bottom end of the support (12) through a groove at its top. The two sides of the mesh cage (13) are engaged with the outside of the support (12). The driven gear (16) is connected to the bottom end of the tray (11). The drive gear (14) is meshed with one side of the driven gear (16). The drive gear (14) is installed inside the sterilization shell (1).
5. A low-temperature circulating sterilization unit for food according to claim 4, characterized in that: The cage (13) is connected to the bottom of the tray (11) via a bracket (12) that engages on both sides.
6. A low-temperature circulating sterilization unit for food according to claim 4, characterized in that: The tray (11) is connected to the driven gear (16) by a drive gear (14) connected to the bottom shaft.