A portable sampling device for food testing

Abstract

This utility model discloses a portable food testing sampling device, relating to the field of food testing technology. It includes an insulated box with a detachable shelf on top and a detachable sealing cap on top of the shelf. A water tank is fitted inside the insulated box, and equidistantly distributed isolation racks are fixedly connected to the bottom of the shelf. The inner wall of the water tank has equidistant slots corresponding to the number of isolation racks, with each rack inserted into its corresponding slot. A graduation line is provided on one side of the water tank. This portable food testing sampling device, through the synergistic effect of ice filling, the insulated box, and the sealing cap, forms a closed low-temperature space, ensuring the stability of sample preservation. The detachable fitting structure of the water tank and shelf allows for quick replacement of the frozen water tank, enabling maintenance without interrupting the low-temperature environment. This solves the problems of disposable use or inconvenient refilling of traditional ice boxes, significantly extending the continuous cooling time.

Description

Technical Field

[0001] This utility model relates to the field of food testing technology, specifically a portable sampling device for food testing. Background Technology

[0002] Sampling devices for food testing refer to equipment or tools specifically designed for taking samples from food for quality, safety, and composition testing. They are a crucial component of food testing experiments.

[0003] To achieve the above functions, a prior art Chinese patent (publication number: CN217561048U) discloses a sampler for food testing, including a placement cylinder and a sampling component. The bottom of the placement cylinder is connected to a base plate, and the top of the placement cylinder is connected to a top plate. The sampling component includes a sampling cylinder and a pinch plate connected to the top of the sampling cylinder. A detachable liquid sampling head or solid sampling head is connected to the bottom of the sampling cylinder. A piston assembly for pumping liquid is installed inside the sampling cylinder. The top plate has an installation port communicating with the inside of the placement cylinder. A capping assembly is installed on the installation port. The top of the outer wall of the sampling cylinder has an external thread, and the installation port has an internal thread that mates with the external thread. The sampling component is combined with the placement cylinder to facilitate the temporary placement or protection of the sample after sampling. The sampling component can sample liquids or solids and is suitable for sampling various foods.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: after sampling for food testing, the samples need to be preserved. Existing food testing sampling devices easily expose the samples to room temperature after sampling, which can easily lead to sample deterioration. Furthermore, the electric cooling of the samples makes the devices heavy and inconvenient to carry. Utility Model Content

[0005] The purpose of this invention is to provide a portable food testing sampling device to solve the problems in the above-mentioned background art where the sample is easily exposed to room temperature after sampling, which can easily lead to sample deterioration, and the device is heavy and inconvenient to carry due to the use of electricity to cool the sample.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable food testing sampling device, comprising an insulated box, wherein a shelf is detachably connected to the top of the insulated box, and a sealing cover is detachably connected to the top of the shelf;

[0007] The insulated box has a water tank that is snapped into place inside, and the bottom of the shelf is fixedly connected to equidistantly distributed isolation racks. The inner side wall of the water tank has equidistant slots corresponding to the number of isolation racks, and each isolation rack is inserted into the corresponding slot. The water tank also has a scale line on one side.

[0008] Preferably, the edge of the shelf is engaged with the inner wall of the insulated box, and both ends of the insulated box are provided with symmetrically distributed sliding holes. A hand-tightening screw is slidably connected inside the sliding hole. Both ends of the shelf are provided with threaded holes aligned with the sliding holes, and the hand-tightening screw passes through the sliding hole and the threaded hole in sequence to achieve threaded fixation.

[0009] Preferably, both sides of the shelf are provided with buckle grooves, and the bottom of the buckle groove is fixedly connected to a pad that fits against the top of the water tank. Both ends of the inner side of the shelf are fixedly connected with symmetrically distributed card slots.

[0010] Preferably, the isolation frame has equidistantly distributed storage slots inside, and each storage slot is slidably connected to an isolation tube, and a sealing tube is slidably connected inside the isolation tube. Both the isolation frame and the storage slots are hollow structures.

[0011] Preferably, a collection tube is slidably connected inside the sealing tube, and a sampling opening is provided on one side of the lower end of the collection tube, and an isolation plate is fixedly connected in the middle inside the sealing tube.

[0012] Preferably, the isolation plate is provided with a guide hole, a piston passing through the guide hole is fixedly connected to the top of the collecting tube, and a compression spring is provided between the piston and the isolation plate.

[0013] Preferably, a rotating block is connected to the middle of the sealing cover via a bearing, and two sets of rotating connecting rods are symmetrically hinged at the bottom of the rotating block. A reset torsion spring connected to the rotating connecting rod is provided at the bottom of the sealing cover, and a slider is hinged at the end of the rotating connecting rod. The slider and the slide rail provided at the bottom of the sealing cover form a sliding fit, and the end of the slider away from the rotating connecting rod is engaged in the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This portable food testing sampling device forms a closed low-temperature space through the synergistic effect of ice filling, insulated box, and sealing lid, ensuring the stability of sample preservation. The water tank and the shelf adopt a detachable snap-fit ​​structure, which supports quick replacement of the frozen water tank and maintenance without interrupting the low-temperature environment. It solves the problem of traditional ice boxes being disposable or inconvenient to replenish ice, and significantly extends the continuous cold preservation time.

[0016] It adopts a multi-level nested sealing structure and spring reset design. During sampling, only the opening of the collection tube is exposed. After operation, the compressed spring automatically resets and closes the sampling port. Combined with the independent storage slot layout of the isolation rack, different samples are physically isolated. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the water tank structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the storage board of this utility model;

[0021] Figure 5 This is a schematic diagram of the isolation tube structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the slider structure of this utility model.

[0023] In the diagram: 1. Insulation box; 2. Shelf; 3. Sealing cover; 4. Isolation rack; 5. Storage slot; 6. Sliding hole; 7. Hand screw; 8. Threaded hole; 9. Water tank; 10. Clip groove; 11. Card slot; 12. Isolation tube; 13. Sealing tube; 14. Collection tube; 15. Isolation plate; 16. Piston; 17. Compression spring; 18. Rotating block; 19. Rotating connecting rod; 20. Sliding block. 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] Example 1: Please refer to Figure 1 - Figure 3 The present invention provides the following technical solution: a portable sampling device for food testing, including an insulated box 1, a shelf 2 detachably connected to the top of the insulated box 1, and a sealing cover 3 detachably connected to the top of the shelf 2; a water tank 9 is snapped into the inside of the insulated box 1, and equidistantly distributed isolation racks 4 are fixedly connected to the bottom of the shelf 2, the inner side wall of the water tank 9 is provided with equidistant slots corresponding to the number of isolation racks 4, and each isolation rack 4 is inserted into the corresponding slot, and a scale line is provided on one side of the water tank 9; The edge of the shelf 2 is engaged with the inner wall of the insulated box 1, and both ends of the insulated box 1 are provided with symmetrically distributed sliding holes 6. A hand-tightening screw 7 is slidably connected inside the sliding hole 6. Both ends of the shelf 2 are provided with threaded holes 8 aligned with the sliding hole 6, and the hand-tightening screw 7 passes through the sliding hole 6 and the threaded hole 8 in sequence to achieve threaded fixation. Both sides of the shelf 2 are provided with buckle grooves 10, and the bottom of the buckle groove 10 is fixedly connected with a pad that fits against the top of the water tank 9. Both ends of the inner side of the shelf 2 are fixedly connected with symmetrically distributed buckle grooves 11.

[0026] When using the device, first fill the water tank 9 with clean water up to the marked position on the scale, and then place the water tank 9 in a low-temperature environment for freezing treatment. Utilize the property that water expands when it freezes to make the ice completely fill the internal space of the water tank 9.

[0027] After freezing is complete, the water tank 9 with the solid ice layer is inserted into the insulated box 1. At this time, the isolation frame 4 is precisely inserted into the corresponding slot on the inner wall of the water tank 9 through the equidistant distribution structure at the bottom, forming a physical isolation support.

[0028] The shelf 2 is then embedded into the inner wall of the insulated box 1 through the edge locking structure. The hand-tightening screws 7, which slide through the sliding holes 6 on both sides, pass through the threaded holes 8 to achieve quick locking. Finally, when the sealing cover 3 is fastened, the pad fits tightly against the top of the water tank 9, forming a closed low-temperature space together with the insulated box 1 and the shelf 2. When maintenance is required, the hand-tightening screws 7 can be loosened by turning them in the opposite direction to release the fixation, making it easy to remove the shelf 2 and replace the new water tank 9, ensuring the continuous low-temperature preservation effect.

[0029] Example 2: Based on Example 1, please refer to... Figure 4 - Figure 5 The following structure is also disclosed: the isolation frame 4 has equidistantly distributed storage slots 5 inside, and each storage slot 5 is slidably connected to an isolation tube 12, and a sealing tube 13 is slidably connected inside the isolation tube 12. Both the isolation frame 4 and the storage slots 5 are hollow structures; a collection tube 14 is slidably connected inside the sealing tube 13, and a sampling opening is provided on one side of the lower end of the collection tube 14. An isolation plate 15 is fixedly connected in the middle inside the sealing tube 13; the isolation plate 15 is provided with a guide hole, and a piston 16 passing through the guide hole is fixedly connected to the top of the collection tube 14. A compression spring 17 is provided between the piston 16 and the isolation plate 15.

[0030] When performing the sampling operation, first disconnect the sealing cover 3 from the storage plate 2, and vertically extract the sealing tube 13 from the isolation tube 12. At this time, the hollow structure of the isolation rack 4 and the storage groove 5 ensures the circulation of cold air.

[0031] The operator presses the piston 16 to overcome the resistance of the compression spring 17, driving the collection tube 14 to move down along the inner hole of the sealing tube 13, so that the sampling opening at the bottom of the collection tube 14 extends to the bottom of the sealing tube 13. When the sampling opening is fully exposed, the collection tube 14 can be inserted into the sample to be tested for collection. After releasing the piston 16, the compression spring 17 pushes the piston 16 to reset, driving the collection tube 14 to move up until the sampling opening is re-embedded into the inner wall of the sealing tube 13 to form a seal. After the sampling is completed, the sealing tube 13 is re-inserted into the isolation tube 12 through sliding fit, and the independent chamber structure of the isolation tube 12 is used to prevent cross-contamination of samples.

[0032] Example 3: Based on Examples 1 and 2, please refer to... Figure 6The following structure is also disclosed: a rotating block 18 is connected to the middle of the sealing cover 3 via a bearing, two sets of rotating connecting rods 19 are symmetrically hinged at the bottom of the rotating block 18, a reset torsion spring connected to the rotating connecting rod 19 is provided at the bottom of the sealing cover 3, and a slider 20 is hinged at the end of the rotating connecting rod 19. The slider 20 forms a sliding fit with the slide rail provided at the bottom of the sealing cover 3, and the end of the slider 20 away from the rotating connecting rod 19 is engaged in the slot 11.

[0033] When opening and closing the sealing cover 3, the operator rotates the rotating block 18 to drive the two sets of rotating connecting rods 19 to deflect synchronously. The hinge motion of the rotating connecting rods 19 is converted into the linear displacement of the slider 20 through the constraint of the slide rail. When the rotating block 18 rotates clockwise, the slider 20 retracts along the slide rail towards the center of the rotating block 18, releasing the engagement state with the slot 11. At this time, the sealing cover 3 and the shelf 2 can be separated vertically.

[0034] When closing, first rotate the rotating block 18 to make the slider 20 retracted. After aligning the sealing cover 3 with the shelf 2, release the rotating block 18. The reset torsion spring automatically drives the rotating connecting rod 19 to rotate in the opposite direction, pushing the slider 20 to expand outward along the slide rail until the wedge-shaped structure at the end of the slider 20 is embedded in the slots 11 on both sides of the shelf 2 to form a mechanical interlock.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] 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 portable food testing sampling device, comprising an insulated box (1), wherein a shelf (2) is detachably connected to the top of the insulated box (1), and a sealing cover (3) is detachably connected to the top of the shelf (2). Its features are: The heat preservation box (1) is internally connected to a water tank (9), and the bottom of the shelf (2) is fixedly connected to an equally spaced isolation rack (4). The inner side wall of the water tank (9) is provided with equally spaced slots corresponding to the number of isolation racks (4), and each isolation rack (4) is inserted into the corresponding slot. The water tank (9) is provided with a scale line on one side.

2. The portable food sampling device according to claim 1, characterized in that: The edge of the shelf (2) is engaged with the inner wall of the insulated box (1), and both ends of the insulated box (1) are provided with symmetrically distributed sliding holes (6). A hand screw (7) is slidably connected inside the sliding hole (6). Both ends of the shelf (2) are provided with threaded holes (8) aligned with the sliding hole (6), and the hand screw (7) passes through the sliding hole (6) and the threaded hole (8) in sequence to achieve threaded fixation.

3. The portable food sampling device according to claim 2, characterized in that: Both sides of the shelf (2) are provided with buckle grooves (10), and the bottom of the buckle groove (10) is fixedly connected to a pad that fits against the top of the water tank (9). Both ends of the inner side of the shelf (2) are fixedly connected with symmetrically distributed slots (11).

4. The portable food sampling device according to claim 1, characterized in that: The isolation frame (4) has equidistantly distributed storage slots (5) inside, and each storage slot (5) is slidably connected to an isolation tube (12), and a sealing tube (13) is slidably connected inside the isolation tube (12). Both the isolation frame (4) and the storage slots (5) are hollow structures.

5. A portable food sampling device according to claim 4, characterized in that: The sealing tube (13) is slidably connected to a collection tube (14), and a sampling opening is provided on one side of the lower end of the collection tube (14). An isolation plate (15) is fixedly connected in the middle of the sealing tube (13).

6. A portable food sampling device according to claim 5, characterized in that: The isolation plate (15) is provided with a guide hole, and a piston (16) passing through the guide hole is fixedly connected to the top of the collection tube (14). A compression spring (17) is provided between the piston (16) and the isolation plate (15).

7. The portable food sampling device according to claim 1, characterized in that: The sealing cover (3) is connected to a rotating block (18) in the middle by a bearing. Two sets of rotating connecting rods (19) are symmetrically hinged at the bottom of the rotating block (18). The bottom of the sealing cover (3) is provided with a reset torsion spring connected to the rotating connecting rod (19). The end of the rotating connecting rod (19) is hinged with a slider (20). The slider (20) forms a sliding fit with the slide rail provided at the bottom of the sealing cover (3). The end of the slider (20) away from the rotating connecting rod (19) is engaged in the slot (11).

Images