A low temperature irradiation test device

Abstract

The utility model discloses a low temperature irradiation test device relates to the field of irradiation technology, including the irradiation box, the top symmetry of irradiation box is installed with the irradiation subassembly, the top center of irradiation box is installed with electron beam detector, the top of electron beam detector and irradiation subassembly is connected with display operation subassembly, and the refrigeration mechanism is installed in the back of irradiation box and is used for the cooling of the inside of irradiation box, the semiconductor refrigeration plate of refrigeration mechanism in this low temperature irradiation test device is cooperated with the cooling fan in rear side fixed frame, can control the temperature in irradiation box, and the radiating fin increases the radiating area, cooperates the heat generated by the semiconductor refrigeration plate and is scattered out fast by the cooling fan, ensures the temperature stability in the box, effectively avoids the temperature fluctuation when food sample irradiation, is favorable to the great degree reduction to the flavor change and the organization structure destruction of heat sensitive food problem, better retains the nutrient composition of food, guarantees the high quality of food.

Description

Technical Field

[0001] This utility model relates to the field of irradiation technology, specifically a low-temperature irradiation testing device. Background Technology

[0002] In the field of food science and processing, irradiation technology is widely used as an efficient sterilization and preservation method, which can effectively extend the shelf life of food and ensure food safety. However, before irradiating food, an irradiation test device is needed to conduct an irradiation test on the food sample to ensure the effect of irradiation sterilization. However, the existing irradiation test devices still have certain defects in use.

[0003] As described in application CN202122577955.1, a food-grade aseptic packaging irradiation device includes an irradiation assembly, a display screen, an electrical control cabinet, push-button switches, and a door. During use, food packaging is placed in a placement box, which is then placed inside the irradiation chamber via a support plate. The placement box is fixed by a support groove on the support plate, facilitating the placement and removal of food packaging and enabling rapid irradiation operations. An electron beam detector detects the irradiation intensity within the irradiation chamber, and the display screen shows the detected intensity, allowing operators to monitor the irradiation intensity in real time and perform corresponding operations accordingly, ensuring the normal operation of the irradiation device. However, in actual use, this food-grade aseptic packaging irradiation device operates at room temperature. Therefore, when irradiating heat-sensitive foods, unstable temperatures can easily lead to changes in flavor and damage to the food's structure. Furthermore, the placement box is only restrained by a support plate, making it prone to shaking and detachment, thus reducing stability.

[0004] Therefore, we propose a low-temperature irradiation test device to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature irradiation testing device to solve the problems mentioned in the background art, such as flavor changes, structural damage, and reduced stability that easily occur when room temperature irradiation equipment is used to irradiate heat-sensitive foods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature irradiation test device, comprising an irradiation chamber, wherein irradiation components are symmetrically installed on the top of the irradiation chamber, an electron beam detector is installed at the center of the top of the irradiation chamber, a display and operation component is connected to the top of the electron beam detector and the irradiation components, and a support frame is symmetrically installed between the display and operation component and the top surface of the irradiation chamber.

[0007] The inner side of the irradiation chamber is symmetrically equipped with slide rails, and a placement tray is slidably installed on the inner side of the slide rails. A sealing door is fixedly connected to the front end of the placement tray.

[0008] An auxiliary ejection mechanism, installed on the inner bottom of the irradiation chamber, is used to actively eject the placement tray;

[0009] A closed positioning mechanism is installed on both sides of the irradiation chamber to close and position the placement tray.

[0010] The cooling mechanism, installed at the back of the irradiation chamber, is used to cool the interior of the chamber.

[0011] Preferably, a front pull rod is fixedly installed on the front side of the sealing door, side pull rods are fixedly installed on the top of the left and right sides of the irradiation box, and support seats are symmetrically installed on the bottom of the left and right sides of the irradiation box.

[0012] With the above-mentioned structural design, the front pull rod makes it easy for operators to pull the sealing door and then pull out the placement tray; the side pull rod facilitates the handling and movement of the entire irradiation box; and the support base ensures that the irradiation box is placed stably, avoiding direct contact with the placement surface and thus preventing wear.

[0013] Preferably, the auxiliary ejection mechanism includes a base plate fixedly installed on the bottom surface of the placement tray, and positioning rods are installed at equal intervals on the bottom front side of the irradiation box. A movable plate is slidably sleeved on the outer ring of the positioning rod, and a first spring is sleeved on the outer ring of the positioning rod on the front side of the movable plate. The two ends of the first spring are fixedly connected to the movable plate and the bottom front side of the irradiation box, respectively.

[0014] With the above-described structure, when the placement tray needs to be removed, the locking state of the placement tray is released, the elastic potential energy of the first spring is released, pushing the movable plate to slide on the positioning rod, and then pushing the placement tray forward to pop out, so as to conveniently and quickly push the placement tray out of the irradiation box, thus improving the ease of operation of picking up and placing food samples.

[0015] Preferably, the closing positioning mechanism includes engagement grooves formed on the left and right sides of the placement plate.

[0016] Preferably, the closing positioning mechanism further includes a locking block that slides through the left and right sides of the irradiation box. Connecting plates are fixedly installed on the upper and lower sides of the locking block. A fixing rod passes through the inside of the connecting plate. One end of the fixing rod is fixedly connected to the irradiation box. The connecting plate and the fixing rod are slidably connected. A second spring is sleeved on the outer ring of the fixing rod on the outside of the connecting plate. The connecting plate is telescopically connected to the fixing rod through the second spring. The locking block is movably locked into the locking groove.

[0017] With the above-described structure, when the placement tray is pushed into the irradiation chamber, the locking block automatically engages with the locking groove under the action of the second spring, achieving closed positioning of the placement tray and ensuring that the placement tray will not shake or accidentally pop out during the irradiation process, thus guaranteeing the stability and safety of the irradiation process.

[0018] Preferably, the cooling mechanism includes connecting frames symmetrically installed at the rear ends of the upper and lower sides of the irradiation box, with heat dissipation fins fixedly connected to the rear ends of the connecting frames, and a semiconductor cooling plate installed on the front side of the heat dissipation fins.

[0019] Preferably, the refrigeration mechanism further includes a fixing frame symmetrically installed on the rear side of the heat dissipation fins, a cooling fan is installed inside the fixing frame, and a filter screen is symmetrically fitted into the inner rear ring of the fixing frame.

[0020] With the above-mentioned structural design, the semiconductor cooling plate can cool the inside of the irradiation chamber, reduce the temperature inside the chamber, and meet the requirements for low-temperature irradiation of heat-sensitive foods. The heat dissipation fins increase the heat dissipation area, and together with the cooling fan, quickly dissipate the heat generated by the semiconductor cooling plate, ensuring cooling efficiency and stability. The filter screen can prevent dust and other debris from entering the cooling mechanism, avoiding affecting the normal operation of the cooling fan and the semiconductor cooling plate, and extending the service life of the cooling mechanism.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the low-temperature irradiation test device;

[0022] 1. The semiconductor cooling plate in the refrigeration mechanism, together with the cooling fan in the rear fixed frame, can control the temperature inside the irradiation chamber. The heat dissipation fins increase the heat dissipation area, and together with the cooling fan, they can quickly dissipate the heat generated by the semiconductor cooling plate, ensuring a stable temperature inside the chamber. This effectively avoids temperature fluctuations during food irradiation, which helps to greatly reduce problems such as changes in flavor and damage to the texture of heat-sensitive foods, better preserve the nutritional components of the food, and ensure the high quality of the food.

[0023] 2. The symmetrically installed slide rails inside the irradiation chamber allow the placement tray to slide, facilitating the placement of food samples of different types and states. The symmetrically installed irradiation components on the top of the irradiation chamber, combined with the electron beam detector and display and operation components, can uniformly irradiate different food samples and adjust the irradiation parameters according to the characteristics of the food, meeting the diverse testing needs of the food industry. The cooperation between the auxiliary ejection mechanism and the closing positioning mechanism enables the rapid loading and unloading of the placement tray and ensures the stability of the placement tray during the irradiation test, improving the effectiveness of use. Attached Figure Description

[0024] Figure 1 This is a side view of the appearance structure of this utility model;

[0025] Figure 2This is an exploded structural diagram of the sealing door and irradiation chamber of this utility model;

[0026] Figure 3 This is a schematic diagram of the distribution structure of the irradiation component and electron beam detector of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure between the placement tray and the auxiliary ejection mechanism of this utility model;

[0028] Figure 5 This is a side sectional view of the closed positioning mechanism of this utility model;

[0029] Figure 6 This is an exploded view of the refrigeration mechanism of this utility model.

[0030] In the diagram: 1. Irradiation chamber; 2. Irradiation assembly; 3. Electron beam detector; 4. Display and operation assembly; 5. Support frame; 6. Slide rail; 7. Placement tray; 8. Sealing door; 9. Front pull rod; 10. Base plate; 11. Positioning rod; 12. Movable plate; 13. First spring; 14. Engaging groove; 15. Engaging block; 16. Connecting plate; 17. Fixing rod; 18. Second spring; 19. Side pull rod; 20. Support base; 21. Connecting frame; 22. Heat dissipation fins; 23. Semiconductor cooling plate; 24. Fixing frame; 25. Cooling fan; 26. Filter screen. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 This utility model provides a technical solution: a low-temperature irradiation test device, including an irradiation chamber 1, an irradiation component 2 symmetrically installed on the top of the irradiation chamber 1, an electron beam detector 3 installed at the center of the top of the irradiation chamber 1, a display and operation component 4 connected to the top of the electron beam detector 3 and the irradiation component 2, a support frame 5 symmetrically installed between the display and operation component 4 and the top surface of the irradiation chamber 1, a slide rail 6 symmetrically installed on the inner side of the irradiation chamber 1, a placement tray 7 slidably installed on the inner side of the slide rail 6, a sealing door 8 fixedly connected to the front end of the placement tray 7, a front pull rod 9 fixedly installed on the front side of the sealing door 8, side pull rods 19 fixedly installed on the top of the left and right sides of the irradiation chamber 1, and support seats 20 symmetrically installed on the bottom of the left and right sides of the irradiation chamber 1.

[0033] The above-described structure allows the placement tray 7 to be pulled out of the irradiation chamber 1 by pulling the front lever 9 at the front end of the sealing door 8 and utilizing the slide rails 6 symmetrically installed inside the irradiation chamber 1. At this point, food samples of different types and states to be irradiated can be placed on the placement tray 7. After placement, the sealing door 8 is pushed to allow the placement tray 7 to slide back into the irradiation chamber 1 along the slide rails 6.

[0034] Once the placement tray 7 is positioned, the irradiation components 2, symmetrically installed on the top of the irradiation chamber 1, begin to operate, emitting irradiation rays into the irradiation chamber 1 to irradiate the food sample. The electron beam detector 3, installed at the center of the top of the irradiation chamber 1, monitors the irradiation dose in real time and transmits the monitoring data to the display and operation component 4. The operator can view the irradiation dose data through the display and operation component 4 and adjust the irradiation parameters of the irradiation components 2 according to the characteristics of the food sample to ensure that the food sample receives a uniform irradiation dose that meets the experimental requirements.

[0035] An auxiliary ejection mechanism, installed on the inner bottom of the irradiation chamber 1, is used to actively eject the placement tray 7. The auxiliary ejection mechanism includes a base plate 10 fixedly installed on the bottom surface of the placement tray 7. Positioning rods 11 are evenly spaced on the inner front bottom of the irradiation chamber 1. A movable plate 12 is slidably sleeved on the outer ring of the positioning rods 11. A first spring 13 is sleeved on the outer ring of the positioning rods 11 on the front side of the movable plate 12. The two ends of the first spring 13 are fixedly connected to the movable plate 12 and the inner front bottom of the irradiation chamber 1, respectively. A closing positioning mechanism, installed on both sides of the irradiation chamber 1, is used to close and position the placement tray 7. The positioning mechanism includes locking grooves 14 on the left and right sides of the placement plate 7. The closing positioning mechanism also includes locking blocks 15 that slide through the left and right sides of the irradiation box 1. Connecting plates 16 are fixedly installed on the upper and lower sides of the locking blocks 15. A fixing rod 17 passes through the inside of the connecting plate 16. One end of the fixing rod 17 is fixedly connected to the irradiation box 1. The connecting plate 16 and the fixing rod 17 are slidably connected. A second spring 18 is sleeved on the outer ring of the fixing rod 17 on the outside of the connecting plate 16. The connecting plate 16 is telescopically connected to the fixing rod 17 through the second spring 18. The locking blocks 15 are movably locked into the locking grooves 14.

[0036] The above-described structure, during the process of pushing the placement disk 7 into the irradiation chamber 1, the engaging grooves 14 on both sides of the placement disk 7 gradually approach the engaging blocks 15 on both sides of the irradiation chamber 1. When the engaging grooves 14 and engaging blocks 15 are aligned, under the elastic force of the second spring 18, the engaging blocks 15 quickly engage into the engaging grooves 14, completing the engagement connection. At this time, the connecting plate 16, pushed by the second spring 18, slides inward along the fixing rod 17, causing the engaging blocks 15 to be tightly embedded in the engaging grooves 14, thereby placing the placement disk 7 into the irradiation chamber 1. The placement plate 7 is firmly fixed inside the irradiation chamber 1 to prevent it from moving due to vibration or external force during low-temperature irradiation, thus ensuring the stability and accuracy of the irradiation test. When it is necessary to remove the placement plate 7, the operator pulls the locking block 15 outward. The locking block 15 overcomes the elastic force of the second spring 18 and drives the connecting plate 16 to slide outward along the fixing rod 17, so that the locking block 15 exits from the locking groove 14, releasing the locking of the placement plate 7 and creating conditions for the auxiliary ejection mechanism to eject the placement plate 7.

[0037] When the placement disk 7 is placed in the irradiation chamber 1 for low-temperature irradiation test, the bottom plate 10 fixed to the bottom surface of the placement disk 7 is in contact with the movable plate 12. At this time, the first spring 13 is in a stretched state and stores elastic potential energy. After the test is completed, the locking mechanism of the placement disk 7 is released, and the first spring 13 is no longer constrained by the pressure of the placement disk 7. It begins to release elastic potential energy and pushes the movable plate 12 to slide forward along the positioning rod 11. Since the bottom plate 10 and the movable plate 12 are in close contact, the sliding of the movable plate 12 drives the placement disk 7 to move forward synchronously, thereby realizing the active ejection of the placement disk 7 from the irradiation chamber 1.

[0038] The cooling mechanism is installed on the back of the irradiation box 1 to cool the inside of the irradiation box 1. The cooling mechanism includes a connecting frame 21 symmetrically installed on the rear ends of the upper and lower sides of the irradiation box 1. A heat dissipation fin 22 is fixedly connected to the rear end of the connecting frame 21. A semiconductor cooling plate 23 is installed on the front side of the heat dissipation fin 22. The cooling mechanism also includes a fixing frame 24 symmetrically installed on the rear side of the heat dissipation fin 22. A cooling fan 25 is installed inside the fixing frame 24. A filter screen 26 is symmetrically fitted into the inner ring of the rear end of the fixing frame 24.

[0039] In the above-described structural design, to protect the quality of heat-sensitive foods during the irradiation process, the cooling mechanism plays a crucial role. The semiconductor cooling plates 23, installed at the rear ends of the upper and lower sides of the irradiation chamber 1, are activated to cool the interior of the irradiation chamber 1. The heat dissipation fins 22 increase the heat dissipation area, and together with the cooling fan 25 in the fixing frame 24 behind the heat dissipation fins 22, the heat generated by the semiconductor cooling plates 23 is quickly dissipated, maintaining the cooling efficiency of the semiconductor cooling plates 23. This controls the temperature inside the irradiation chamber 1, stabilizing it at the set low temperature environment and preventing problems such as changes in flavor and damage to the texture of the food due to temperature fluctuations.

[0040] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-temperature irradiation test apparatus, comprising an irradiation chamber (1), wherein irradiation components (2) are symmetrically mounted on the top of the irradiation chamber (1), an electron beam detector (3) is mounted at the center of the top of the irradiation chamber (1), a display and operation component (4) is connected to the top of the electron beam detector (3) and the irradiation components (2), and a support frame (5) is symmetrically mounted between the display and operation component (4) and the top surface of the irradiation chamber (1), characterized in that: The irradiation box (1) is symmetrically equipped with slide rails (6), and a placement plate (7) is slidably installed on the inner side of the slide rails (6). A sealing door (8) is fixedly connected to the front end of the placement plate (7). An auxiliary ejection mechanism is installed on the inner bottom of the irradiation box (1) to actively eject the placement tray (7); A closed positioning mechanism is installed on both sides of the irradiation box (1) to close and position the placement plate (7); A cooling mechanism is installed on the back of the irradiation chamber (1) to cool the interior of the irradiation chamber (1).

2. The low-temperature irradiation test apparatus according to claim 1, characterized in that: A front pull rod (9) is fixedly installed on the front side of the sealing door (8), and side pull rods (19) are fixedly installed on the top of the left and right sides of the irradiation box (1). Support seats (20) are symmetrically installed on the bottom of the left and right sides of the irradiation box (1).

3. The low-temperature irradiation testing device according to claim 1, characterized in that: The auxiliary ejection mechanism includes a base plate (10) fixedly installed on the bottom surface of the placement tray (7). Positioning rods (11) are installed at equal intervals on the bottom front side inside the irradiation box (1). A movable plate (12) is slidably sleeved on the outer ring of the positioning rod (11). A first spring (13) is sleeved on the outer ring of the positioning rod (11) on the front side of the movable plate (12). The two ends of the first spring (13) are fixedly connected to the movable plate (12) and the bottom front side inside the irradiation box (1), respectively.

4. The low-temperature irradiation testing device according to claim 1, characterized in that: The closing positioning mechanism includes engagement slots (14) on the left and right sides of the placement plate (7).

5. A low-temperature irradiation testing device according to claim 4, characterized in that: The closing positioning mechanism also includes a locking block (15) that slides through the left and right sides of the irradiation box (1). A connecting plate (16) is fixedly installed on the upper and lower sides of the locking block (15). A fixing rod (17) passes through the inside of the connecting plate (16). One end of the fixing rod (17) is fixedly connected to the irradiation box (1). The connecting plate (16) and the fixing rod (17) are slidably connected. A second spring (18) is sleeved on the outer ring of the fixing rod (17) on the outside of the connecting plate (16). The connecting plate (16) is telescopically connected to the fixing rod (17) through the second spring (18). The locking block (15) is movably locked into the locking groove (14).

6. The low-temperature irradiation testing device according to claim 1, characterized in that: The cooling mechanism includes a connecting frame (21) symmetrically installed on the upper and lower rear ends of the irradiation box (1). A heat dissipation fin (22) is fixedly connected to the rear end of the connecting frame (21), and a semiconductor cooling plate (23) is installed on the front side of the heat dissipation fin (22).

7. A low-temperature irradiation testing device according to claim 6, characterized in that: The refrigeration mechanism also includes a fixing frame (24) symmetrically installed on the rear side of the heat dissipation fins (22). A cooling fan (25) is installed inside the fixing frame (24), and a filter screen (26) is symmetrically fitted into the inner rear end of the fixing frame (24).

Images