Low-frequency ultrasonic non-thermal sterilization device for liquid food
By introducing a rotation and disassembly mechanism into the low-frequency ultrasonic sterilization device, the problem of uneven sterilization of liquid foods is solved, achieving a more efficient sterilization effect and a convenient operation process.
Patent Information
- Application Number
- CN202522175119.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-15
AI Technical Summary
Existing low-frequency ultrasonic sterilization devices have the problem of uneven sterilization in liquid foods, resulting in excessive sterilization in the area near the ultrasonic transducer and incomplete sterilization in the area far from the transducer, making it difficult to meet food safety standards.
A low-frequency ultrasonic non-thermal sterilization device for liquid food was designed. It adopts a rotating mechanism and a disassembly mechanism. The worm gear and worm wheel are driven by a servo motor to rotate the container. Combined with low-frequency ultrasonic sterilization, it ensures that the liquid food is uniformly heated and sterilized. The disassembly mechanism facilitates the placement and removal of the container.
It achieves uniform sterilization of liquid foods, improves sterilization effect and efficiency, ensures food hygiene standards, and simplifies the container operation process.
Smart Images
Figure CN224670749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid food sterilization technology, specifically a low-frequency ultrasonic non-thermal sterilization device for liquid food. Background Technology
[0002] Liquid foods, such as milk, fruit juice, beverages, and alcoholic drinks, play an important role in people's daily diet. Due to their high water content and rich nutrients, they provide excellent conditions for the growth and reproduction of microorganisms. If liquid foods are contaminated by microorganisms such as bacteria, molds, and yeasts during production, processing, storage, and transportation, it can not only lead to food spoilage, affecting their taste, color, and nutritional value, but may also produce harmful toxins, seriously threatening consumers' health and causing food poisoning and other food safety problems. Therefore, effective sterilization of liquid foods is a crucial step in ensuring food safety, extending shelf life, and meeting consumer demand.
[0003] However, the low-frequency ultrasonic sterilization devices currently on the market still have many technical pain points, which restrict their large-scale promotion in the liquid food industry. Most devices adopt a fixed sterilization structure, with liquid food containers placed statically in the sterilization area. This results in uneven contact between the liquid and ultrasonic energy in different locations within the container. The sterilization effect is too strong in areas close to the ultrasonic transducer, while areas far from the transducer may not be sterilized thoroughly, creating "sterilization blind spots" that are difficult to meet the strict standards of food safety. Utility Model Content
[0004] The purpose of this invention is to provide a low-frequency ultrasonic non-thermal sterilization device for liquid food, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-frequency ultrasonic non-thermal sterilization device for liquid food, comprising an ultrasonic sterilization chamber body, a door hinged to the left side of the front of the ultrasonic sterilization chamber body, a rotating mechanism provided at the bottom of the inner wall of the ultrasonic sterilization chamber body, and a disassembly mechanism provided at the top of the rotating mechanism.
[0006] The rotating mechanism includes a housing, which is fixedly connected to the bottom of the inner wall of the ultrasonic sterilization chamber. An L-plate is fixedly connected to the bottom of the inner wall of the housing. A servo motor is fixedly connected to the front of the L-plate. A worm gear is fixedly connected to the output end of the servo motor. A rotating shaft is rotatably connected to the bottom of the inner wall of the housing. A worm wheel is fixedly connected to the surface of the rotating shaft near the bottom end. A connecting plate is fixedly connected to the top of the rotating shaft. A rotating plate is fixedly connected to the top of the connecting plate.
[0007] Preferably, the rear end of the worm is rotatably connected to the bottom of the inner wall of the housing, making the rotation of the worm more stable, and the worm meshes with the worm wheel.
[0008] Preferably, the top of the housing has a hole that matches the rotating shaft, and the surface of the rotating shaft passes through and is rotatably connected to the hole.
[0009] Preferably, the disassembly mechanism includes a fixed frame, which is fixedly connected to the top of the rotating plate. A sliding frame is slidably connected inside the fixed frame. A support platform is fixedly connected to the top of the sliding frame. Placement seats are fixedly connected to the top of the support platform in a circular array. A fixed cylinder is fixedly connected to the front of the fixed frame. A fixed ring is fixedly connected to the inner wall of the fixed cylinder near the front. An insertion rod is slidably connected to the inner wall of the fixed ring. A sliding ring is fixedly connected to the surface of the insertion rod near the rear end. A spring is sleeved on the surface of the insertion rod between the fixed ring and the sliding ring. A pull plate is fixedly connected to the front end of the insertion rod. A corresponding insertion hole for the insertion rod is opened on the front of the sliding frame.
[0010] Preferably, the outer wall of the sliding ring is slidably connected to the inner wall of the fixed cylinder.
[0011] Preferably, one end of the spring is fixedly connected to the back of the fixed ring, and the other end of the spring is fixedly connected to the front of the sliding ring.
[0012] Preferably, the front of the fixing frame has a hole that matches the insertion rod, and the insertion rod is slidably connected to the hole through the surface of the frame.
[0013] Compared with the prior art, this utility model provides a low-frequency ultrasonic non-thermal sterilization device for liquid food, which has the following beneficial effects:
[0014] 1. This low-frequency ultrasonic non-thermal sterilization device for liquid food uses a rotating mechanism. A servo motor drives a worm gear to rotate, which in turn drives the rotating shaft and connecting plate to rotate. This causes the liquid food container placed on the platform to rotate. During the low-frequency ultrasonic non-thermal sterilization process, the liquid food can receive the ultrasonic waves more evenly while rotating, avoiding sterilization dead zones that occur when the food is stationary. This greatly improves the comprehensiveness and effectiveness of sterilization, ensuring that the liquid food meets better hygiene standards.
[0015] 2. This low-frequency ultrasonic non-thermal sterilization device for liquid foods features a detachable mechanism that greatly facilitates the placement and removal of liquid food containers. By pulling the pull plate, the insert rod moves forward, allowing it to be pulled out of the insertion hole in the sliding frame. The sliding frame can then slide up and down within the fixed frame, enabling easy removal or placement of the support platform and its mounting base. This detachable structure facilitates the cleaning and replacement of the mounting base and the rapid loading and unloading of liquid food containers, reducing operation time and improving the smoothness of the production process. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0018] Figure 2 This is a three-dimensional schematic diagram of the interior of the ultrasonic sterilization box body of this utility model.
[0019] Figure 3 This is a three-dimensional schematic diagram of the L-plate and servo motor of this utility model.
[0020] Figure 4 This is a three-dimensional schematic diagram of the worm gear and connecting disc of this utility model;
[0021] Figure 5 This is a three-dimensional schematic diagram of the fixed frame and sliding frame of this utility model.
[0022] Figure 6 This is a three-dimensional cross-sectional view of the surface of the fixing cylinder of this utility model.
[0023] In the diagram: 1. Ultrasonic sterilizer body; 2. Door; 3. Rotating mechanism; 31. Chamber; 32. L-plate; 33. Servo motor; 34. Worm gear; 35. Shaft; 36. Worm wheel; 37. Connecting plate; 38. Rotating plate; 4. Disassembly mechanism; 41. Fixing frame; 42. Sliding frame; 43. Support platform; 44. Placement seat; 45. Fixing cylinder; 46. Fixing ring; 47. Insert rod; 48. Sliding ring; 49. Spring; 411. Pull plate; 412. Insertion hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] This utility model provides the following technical solution:
[0027] Example 1
[0028] Please see Figure 1-4 This utility model provides a technical solution: a low-frequency ultrasonic non-thermal sterilization device for liquid food, including an ultrasonic sterilization box body 1, a box door 2 hinged to the left side of the front of the ultrasonic sterilization box body 1, a rotating mechanism 3 provided at the bottom of the inner wall of the ultrasonic sterilization box body 1, and a disassembly mechanism 4 provided at the top of the rotating mechanism 3.
[0029] The rotating mechanism 3 includes a housing 31, which is fixedly connected to the bottom of the inner wall of the ultrasonic sterilization chamber body 1. An L-plate 32 is fixedly connected to the bottom of the inner wall of the housing 31. A servo motor 33 is fixedly connected to the front of the L-plate 32. A worm gear 34 is fixedly connected to the output end of the servo motor 33. A rotating shaft 35 is rotatably connected to the bottom of the inner wall of the housing 31. A worm wheel 36 is fixedly connected to the surface of the rotating shaft 35 near the bottom. A connecting plate 37 is fixedly connected to the top of the rotating shaft 35. A rotating plate 38 is fixedly connected to the top of the connecting plate 37.
[0030] The rear end of the worm 34 is rotatably connected to the bottom of the inner wall of the housing 31, making the rotation of the worm 34 more stable. The worm 34 meshes with the worm wheel 36.
[0031] The top of the housing 31 has a hole that matches the rotating shaft 35, and the surface of the rotating shaft 35 passes through and is rotatably connected to the hole.
[0032] Example 2
[0033] Please see Figure 5-6 Furthermore, based on Embodiment 1, a disassembly mechanism 4 is obtained.
[0034] The disassembly mechanism 4 includes a fixed frame 41, which is fixedly connected to the top of the rotating plate 38. A sliding frame 42 is slidably connected inside the fixed frame 41. A support platform 43 is fixedly connected to the top of the sliding frame 42. A placement seat 44 is fixedly connected to the top of the support platform 43 in a circular array. A fixed cylinder 45 is fixedly connected to the front of the fixed frame 41. A fixed ring 46 is fixedly connected to the inner wall of the fixed cylinder 45 near the front. An insertion rod 47 is slidably connected to the inner wall of the fixed ring 46. A sliding ring 48 is fixedly connected to the surface of the insertion rod 47 near the rear end. A spring 49 is sleeved between the fixed ring 46 and the sliding ring 48 on the surface of the insertion rod 47. A pull plate 411 is fixedly connected to the front end of the insertion rod 47. A corresponding insertion hole 412 is opened on the front of the sliding frame 42.
[0035] The outer wall of the sliding ring 48 is slidably connected to the inner wall of the fixed cylinder 45.
[0036] One end of the spring 49 is fixedly connected to the back of the fixed ring 46, and the other end of the spring 49 is fixedly connected to the front of the sliding ring 48.
[0037] The front of the fixed frame 41 has a hole that matches the insertion rod 47, and the insertion rod 47 passes through the surface and slides back and forth in the hole.
[0038] In actual operation, when this device is used and a liquid food container needs to be placed, the pull plate 411 is pulled outward. The pull plate 411 drives the insertion rod 47 to move forward. Since the surface of the insertion rod 47 is fixedly connected to the rear end of the sliding ring 48, and the outer wall of the sliding ring 48 is slidably connected to the inner wall of the fixed cylinder 45, and a spring 49 is sleeved between the fixed ring 46 and the sliding ring 48 on the surface of the insertion rod 47, with one end of the spring 49 fixedly connected to the back of the fixed ring 46 and the other end fixedly connected to the front of the sliding ring 48, the spring 49 is compressed when the insertion rod 47 is pulled. As the insertion rod 47 moves forward, it is pulled out from the corresponding insertion hole 412 on the front of the sliding frame 42. At this time, the lock between the sliding frame 42 and the fixed frame 41 is released, and the sliding... The frame 42 can slide freely up and down within the fixed frame 41. Sliding the sliding frame 42 upwards causes the tray 43, which is fixedly connected to it, to move upwards until the tray 43 is completely removed from the ultrasonic sterilization box body 1. This makes it convenient to place containers containing liquid food on the placement seats 44, which are fixedly connected in a circular array on top of the tray 43. After placing the container, slide the sliding frame 42 downwards to return the tray 43 to the appropriate position. Then, release the pull plate 411, and the compressed spring 49 returns to its original state, pushing the sliding ring 48 and the insertion rod 47 to move backwards until the insertion rod 47 is reinserted into the insertion hole 412 of the sliding frame 42. This achieves a firm connection between the sliding frame 42 and the fixed frame 41, ensuring that the tray 43 will not shake or fall off during subsequent rotation.
[0039] After closing the door 2, the servo motor 33 in the rotating mechanism 3 is started. The servo motor 33 is fixed on the L plate 32, which is fixedly connected to the bottom of the inner wall of the box 31. The box 31 is also fixedly connected to the bottom of the inner wall of the ultrasonic sterilization box body 1, providing stable support for the servo motor 33. The output end of the servo motor 33 drives the worm gear 34 to rotate. The rear end of the worm gear 34 is rotatably connected to the bottom of the inner wall of the box 31, ensuring the stability of the rotation of the worm gear 34. The worm gear 34 meshes with the worm wheel 36 fixedly connected to the surface of the rotating shaft 35 near the bottom. The rotation of the worm gear 34 drives the worm wheel 36 to rotate, which in turn causes the rotating shaft 35 to rotate. The top of the rotating shaft 35 is fixedly connected to the connecting plate 37, and the top of the connecting plate 37 is fixedly connected to the rotating plate 38. Therefore, the rotation of the rotating shaft 35 will drive the rotating plate 38 and the disassembly mechanism 4 fixed on its top to rotate together. While the liquid food container rotates with the disassembly mechanism 4, the low-frequency ultrasonic generator of the ultrasonic sterilization box body 1 is turned on. When low-frequency ultrasound propagates in a liquid, it produces a series of physical and chemical effects, such as cavitation, mechanical, and thermal effects. Cavitation creates tiny bubbles in the liquid, which expand and burst rapidly under the action of ultrasound, generating a localized high-temperature and high-pressure environment that can destroy the cell walls and cell membranes of bacteria, thereby achieving sterilization. The rotation of the liquid food container causes the liquid food to flow and tumble continuously within the container, allowing the ultrasound to act more evenly on all parts of the liquid food, avoiding the problem of uneven sterilization caused by the stillness of the liquid food, and improving the sterilization effect and efficiency.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A low-frequency ultrasonic non-thermal sterilization device for liquid food, comprising an ultrasonic sterilization chamber body (1), characterized in that: The ultrasonic sterilization box body (1) has a door (2) hinged to the left side of the front side. The bottom of the inner wall of the ultrasonic sterilization box body (1) is provided with a rotating mechanism (3), and the top of the rotating mechanism (3) is provided with a disassembly mechanism (4). The rotating mechanism (3) includes a housing (31), which is fixedly connected to the bottom of the inner wall of the ultrasonic sterilization box body (1). An L-plate (32) is fixedly connected to the bottom of the inner wall of the housing (31). A servo motor (33) is fixedly connected to the front of the L-plate (32). A worm gear (34) is fixedly connected to the output end of the servo motor (33). A rotating shaft (35) is rotatably connected to the bottom of the inner wall of the housing (31). A worm wheel (36) is fixedly connected to the surface of the rotating shaft (35) near the bottom. A connecting plate (37) is fixedly connected to the top of the rotating shaft (35). A rotating plate (38) is fixedly connected to the top of the connecting plate (37).
2. The low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 1, characterized in that: The rear end of the worm (34) is rotatably connected to the bottom of the inner wall of the housing (31), and the worm (34) meshes with the worm wheel (36).
3. The low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 1, characterized in that: The top of the housing (31) has a hole that matches the rotating shaft (35), and the surface of the rotating shaft (35) is penetrated and rotatably connected to the hole.
4. The low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 1, characterized in that: The disassembly mechanism (4) includes a fixed frame (41), which is fixedly connected to the top of the rotating plate (38). A sliding frame (42) is slidably connected inside the fixed frame (41). A support platform (43) is fixedly connected to the top of the sliding frame (42). A placement seat (44) is fixedly connected to the top of the support platform (43) in a circular array. A fixed cylinder (45) is fixedly connected to the front of the fixed frame (41). A fixed ring (46) is fixedly connected to the inner wall of the fixed cylinder (45) near the front. A plug rod (47) is slidably connected to the inner wall of the fixed ring (46) from front to back. A sliding ring (48) is fixedly connected to the surface of the plug rod (47) near the rear end. A spring (49) is sleeved between the fixed ring (46) and the sliding ring (48) on the surface of the plug rod (47). A pull plate (411) is fixedly connected to the front end of the plug rod (47). A corresponding insertion hole (412) is opened on the front of the sliding frame (42).
5. A low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 4, characterized in that: The outer wall of the sliding ring (48) is slidably connected to the inner wall of the fixed cylinder (45).
6. The low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 4, characterized in that: One end of the spring (49) is fixedly connected to the back of the fixed ring (46), and the other end of the spring (49) is fixedly connected to the front of the sliding ring (48).
7. A low-frequency ultrasonic non-thermal sterilization device for liquid food according to claim 4, characterized in that: The fixed frame (41) has a hole on its front that matches the insertion rod (47), and the insertion rod (47) is slidably connected to the hole through the surface of the insertion rod (47).