Rapid thawing device for food detection based on reciprocating motion

CN224624156UActive Publication Date: 2026-08-11QINGDAO PROD QUALITY INSPECTION INST (QINGDAO PROD QUALITY & SAFETY RISK MONITORING CENT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]目前常见的食品解冻方式包括自然解冻、水浴解冻、微波解冻;自然解冻依赖环境温度,耗时较长,无法满足快速检测与加工的需求,且长时间暴露在空气中易导致食品受微生物污染,影响食品安全性;水浴解冻虽然能加快解冻速度,但食品直接与水接触,易造成营养成分流失,还可能改变食品的原有风味和质地,并且在解冻过程中,食品各部位与水的接触程度不同,导致解冻不均匀;微波解冻虽然效率较高,但微波的穿透性有限,容易出现食品表面过热而内部未完全解冻的现象,还可能因局部温度过高破坏食品的营养结构

Benefits of technology

[0013]1、通过设置电热风机可快速产生热风,并经固定管和固定头形成循环路径,将热风均匀吹至解冻箱内对冷冻食品进行加热,相比自然解冻等传统方式,大幅缩短了解冻时间,满足食品检测快速处理的需求。

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Abstract

This utility model relates to the field of food thawing technology, and more particularly to a rapid thawing device for food testing based on reciprocating motion. The device includes a thawing chamber with a rotating door hinged to its front. An L-shaped plate is fixedly connected to the inner wall of the thawing chamber, and a motor is fixedly connected to its side wall. A reciprocating lead screw is fixedly connected to the output end of the motor, passing through and rotatably connecting to the thawing chamber. A moving block is fitted onto the outer wall of the reciprocating lead screw. A guide rod is fixedly connected to the inner wall of the thawing chamber, and a heating mechanism is provided on the thawing chamber. This utility model utilizes an electric hot air blower to quickly generate hot air, which is then circulated through a fixed pipe and a fixed head to evenly blow hot air into the thawing chamber to heat frozen food, significantly shortening the thawing time. Workers can easily remove the placement frame for cleaning by simply separating the limiting block and the support block, effectively preventing bacterial growth from residual thawing liquid.
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Description

Technical Field

[0001] This utility model relates to the field of food thawing technology, and in particular to a rapid thawing device for food testing based on reciprocating motion. Background Technology

[0002] In the field of food processing and testing, rapid thawing of frozen foods is a fundamental and crucial operation. Quick and effective thawing ensures the quality and taste of food while improving processing and testing efficiency.

[0003] Common food thawing methods include natural thawing, water bath thawing, and microwave thawing. Natural thawing relies on ambient temperature, takes a long time, and cannot meet the needs of rapid testing and processing. Furthermore, prolonged exposure to air can easily lead to microbial contamination of food, affecting food safety. While water bath thawing can accelerate the thawing process, direct contact between food and water can easily cause nutrient loss and may alter the original flavor and texture of the food. In addition, the varying degrees of contact between different parts of the food and water during thawing can result in uneven thawing. Although microwave thawing is highly efficient, the limited penetration of microwaves can easily lead to overheating of the food surface while the interior remains incompletely thawed. It may also damage the nutritional structure of the food due to excessively high local temperatures. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid defrosting device for food testing based on reciprocating motion. By incorporating an electric hot air blower, hot air is rapidly generated and circulated through a fixed pipe and a fixed head, evenly blowing the hot air into the defrosting chamber to heat the frozen food, significantly shortening the defrosting time. Workers can easily remove the placement frame for cleaning by simply separating the limiting block and the support block, effectively preventing the growth of bacteria from residual defrosting liquid.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rapid defrosting device for food testing based on reciprocating motion includes a defrosting chamber. A rotating door is hinged to the front of the defrosting chamber. An L-shaped plate is fixedly connected to the inner wall of the defrosting chamber. A motor is fixedly connected to the side wall of the defrosting chamber. A reciprocating lead screw is fixedly connected to the output end of the motor, passing through the defrosting chamber and rotatably connected thereto. A moving block is fitted onto the outer wall of the reciprocating lead screw. A guide rod is fixedly connected to the inner wall of the defrosting chamber, passing through the moving block and slidably connected thereto. A rack plate is fixedly connected to the rear end of the moving block, meshing with a gear. A rotating rod is coaxially fixedly connected to the gear. A limit block is fixedly connected to the top of the rotating rod. A support block is mounted on the top of the limit block. A placement frame is fixedly connected to the top of the support block. A heating mechanism is provided on the defrosting chamber.

[0007] Preferably, the heating mechanism includes two fixed pipes fixedly connected to the inner wall of the defrosting chamber, and multiple fixed heads fixedly connected to the opposite ends of the two fixed pipes. An electric hot air fan is fixedly connected to the top of the defrosting chamber. The electric hot air fan is fixedly connected to an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe both pass through the defrosting chamber and are fixedly connected to it. The air inlet pipe is fixedly connected to the fixed pipe on the left side, and the air outlet pipe is fixedly connected to the fixed pipe on the right side.

[0008] Preferably, the revolving door is equipped with a glass door, and a C-shaped handle is fixedly connected to the outer wall of the revolving door. The outer wall of the C-shaped handle is covered with a protective sleeve, and the protective sleeve is made of rubber.

[0009] Preferably, the rear end of the rack plate is provided with a plurality of teeth, and the plurality of teeth are configured to cooperate with gears.

[0010] Preferably, the rotating rod passes through the L-shaped plate and is rotatably connected to it, and the bottom of the rotating rod is rotatably connected to the inner bottom of the defrosting box.

[0011] Preferably, the limiting block is a square block, and the bottom of the support block has a square groove, into which the limiting block is inserted.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By setting up an electric hot air blower, hot air can be quickly generated and formed into a circulation path through a fixed pipe and a fixed head, so that the hot air is evenly blown into the defrosting box to heat the frozen food. Compared with traditional methods such as natural defrosting, the defrosting time is greatly shortened, which meets the needs of rapid food testing and processing.

[0014] 2. The motor drives the reciprocating screw to rotate, which in turn drives the rack plate to move back and forth. This causes the gears and connected components to rotate the food in a "forward-reverse-reverse-forward" cycle, ensuring that the hot air is in full contact with all parts of the food and avoiding local overheating or uneven thawing, thus ensuring good thawing effect.

[0015] 3. The placement frame can not only hold food, but also collect the liquid produced during the thawing process. Workers can easily remove the placement frame for cleaning by simply separating the limiting block and the support block, effectively preventing the growth of bacteria from residual thawing liquid, ensuring the hygiene of the equipment and its subsequent use, and extending the service life of the equipment.

[0016] In summary, by setting up an electric hot air blower, hot air can be quickly generated and circulated through a fixed pipe and fixed head to evenly blow hot air into the defrosting box to heat frozen food, significantly shortening defrosting time. Staff can easily remove the placement frame for cleaning by simply separating the limiting block and support block, effectively preventing the growth of bacteria from residual defrosting liquid. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the rapid defrosting device for food testing based on reciprocating motion according to this utility model;

[0018] Figure 2 This is a first cross-sectional schematic diagram of the rapid thawing device for food testing based on reciprocating motion according to this utility model;

[0019] Figure 3 This is a second cross-sectional schematic diagram of the rapid thawing device for food testing based on reciprocating motion according to this utility model.

[0020] In the diagram: 1. Defrost box; 2. Revolving door; 3. Glass door; 4. L-shaped plate; 5. Motor; 6. Reciprocating screw; 7. Moving block; 8. Guide rod; 9. Rack plate; 10. Gear; 11. Rotating rod; 12. Limiting block; 13. Support block; 14. Placement frame; 15. Fixing tube; 16. Fixing head; 17. Electric hot air blower. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 The aforementioned rapid thawing device for food testing based on reciprocating motion includes a thawing chamber 1. A rotating door 2 is installed on the front of the thawing chamber 1 via a hinge. The rotating door 2 is sealed to the thawing chamber 1 to prevent heat loss. A glass door 3 is installed on the rotating door 2, through which the interior can be viewed. A C-shaped handle is fixedly connected to the outer wall of the rotating door 2. A protective cover made of rubber is fitted on the outer wall of the C-shaped handle to enhance operating comfort and prevent slippage.

[0023] An L-shaped plate 4 is fixedly connected to the inner wall of the defrosting box 1. A motor 5 is fixedly connected to the side wall of the defrosting box 1. A reciprocating screw 6 is fixedly connected to the output end of the motor 5. The reciprocating screw 6 passes through the defrosting box 1 and is rotatably connected to it. A moving block 7 is sleeved on the outer wall of the reciprocating screw 6. A guide rod 8 is fixedly connected to the inner wall of the defrosting box 1. The guide rod 8 passes through the moving block 7 and is slidably connected to it. A rack plate 9 is fixedly connected to the rear end of the moving block 7. The rear end of the rack plate 9 has multiple teeth, which are all set to cooperate with the gear 10. The rack plate 9 meshes with the gear 10. The reciprocating motion of the rack plate 9 drives the gear 10 through the meshing of the teeth. The reciprocating screw 6 drives the rack plate 9 to achieve a "forward-reverse-reverse-forward" rotation cycle, so that the food is heated more evenly.

[0024] A rotating rod 11 is coaxially fixedly connected to the gear 10. The rotating rod 11 passes through the L-shaped plate 4 and is rotatably connected to it. The bottom of the rotating rod 11 is rotatably connected to the inner bottom of the defrosting box 1. A limiting block 12 is fixedly connected to the top of the rotating rod 11. A support block 13 is installed on the top of the limiting block 12. The limiting block 12 is a square block. A square groove is opened at the bottom of the support block 13. The limiting block 12 is inserted into the square groove. The cooperation between the square block and the square groove realizes circumferential positioning to prevent the placement frame 14 from slipping when rotating. The placement frame 14 is fixedly connected to the top of the support block 13. The placement frame 14 has the dual functions of carrying food and collecting defrosting liquid.

[0025] The defrosting box 1 is equipped with a heating mechanism, which includes two fixed pipes 15 fixedly connected to the inner wall of the defrosting box 1. The opposite ends of the two fixed pipes 15 are fixedly connected to multiple fixed heads 16. An electric hot air blower 17 is fixedly connected to the top of the defrosting box 1. The electric hot air blower 17 is fixedly connected to an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe both pass through the defrosting box 1 and are fixedly connected to it. The air inlet pipe is fixedly connected to the fixed pipe 15 on the left side, and the air outlet pipe is fixedly connected to the fixed pipe 15 on the right side. The electric hot air blower 17 forms a hot air circulation path through the fixed pipes 15, and the fixed heads 16 evenly distribute the airflow to defrost the food.

[0026] During use, staff remove frozen food from the freezer, then hold the C-shaped handle to rotate and open the rotating door 2, place the frozen food on the placement frame 14, and finally rotate and close the rotating door 2. The electric hot air blower 17 is activated, generating hot air that is sprayed through the right-side fixed pipe 15 and multiple fixed heads 16, blowing the hot air into the defrosting chamber 1. Air inside the defrosting chamber 1 is then drawn out through the left-side fixed heads 16 and fixed pipe 15, creating airflow to heat the frozen food inside and quickly defrost it. The motor 5 is activated, driving the reciprocating screw 6 to rotate, causing the moving block 7 to move on the guide rod 8. The sliding motion drives the rack plate 9 to reciprocate. The rotation of the rack plate 9 causes the gear 10, rotating rod 11, limiting block 12, support block 13, placement frame 14, and frozen food to rotate slowly (the frozen food rotates once clockwise, twice counterclockwise, and finally once clockwise to complete one cycle). This ensures that the hot air sprayed out comes into even contact with the rotating frozen food, resulting in a good defrosting effect. The defrosted water is collected in the placement frame 14. Finally, the worker holds the placement frame 14 and moves it upward, causing the support block 13 to move upward, separating the limiting block 12 and the support block 13, allowing the placement frame 14 to be removed. The surface of the placement frame 14 is then cleaned to avoid residue for future use.

Claims

1. A rapid thawing device for food testing based on reciprocating motion, comprising a thawing chamber (1), characterized in that, The front of the thawing box (1) is fitted with a rotating door (2) via a hinge. An L-shaped plate (4) is fixedly connected to the inner wall of the thawing box (1). A motor (5) is fixedly connected to the side wall of the thawing box (1). A reciprocating screw (6) is fixedly connected to the output end of the motor (5). The reciprocating screw (6) passes through the thawing box (1) and is rotatably connected to it. A moving block (7) is fitted on the outer wall of the reciprocating screw (6). A guide rod (8) is fixedly connected to the inner wall of the thawing box (1). 8) The moving block (7) is slidably connected to the moving block (7). The rear end of the moving block (7) is fixedly connected to a rack plate (9). The rack plate (9) is meshed with a gear (10). The gear (10) is coaxially fixedly connected to a rotating rod (11). The top of the rotating rod (11) is fixedly connected to a limit block (12). The top of the limit block (12) is equipped with a support block (13). The top of the support block (13) is fixedly connected to a placement frame (14). The defrosting box (1) is equipped with a heating mechanism. The heating mechanism includes two fixed pipes (15) fixedly connected to the inner wall of the defrosting box (1). The opposite ends of the two fixed pipes (15) are fixedly connected to multiple fixed heads (16). An electric hot air blower (17) is fixedly connected to the top of the defrosting box (1). The electric hot air blower (17) is fixedly connected to an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe both pass through the defrosting box (1) and are fixedly connected to it. The air inlet pipe is fixedly connected to the fixed pipe (15) on the left side, and the air outlet pipe is fixedly connected to the fixed pipe (15) on the right side. The limiting block (12) is a square block, and the bottom of the support block (13) is provided with a square groove. The limiting block (12) is inserted into the square groove.

2. The rapid thawing device for food testing based on reciprocating motion according to claim 1, characterized in that, A glass door (3) is installed on the revolving door (2). A C-shaped handle is fixedly connected to the outer wall of the revolving door (2). A protective sleeve is fitted on the outer wall of the C-shaped handle. The protective sleeve is made of rubber.

3. The rapid thawing device for food testing based on reciprocating motion according to claim 1, characterized in that, The rear end of the rack plate (9) is provided with multiple teeth, and the multiple teeth are configured to cooperate with the gear (10).

4. The rapid thawing device for food testing based on reciprocating motion according to claim 1, characterized in that, The rotating rod (11) passes through the L-shaped plate (4) and is rotatably connected to it. The bottom of the rotating rod (11) is rotatably connected to the inner bottom of the defrosting box (1).