A sampling device for food safety detection

By designing sampling equipment with elastic clips and a clamping mechanism, problems such as unstable sample fixation, susceptibility to compression damage, and inconvenience in classification and storage have been solved, achieving stable sample transportation and efficient management, and improving the accuracy of test results and work efficiency.

CN224349401UActive Publication Date: 2026-06-12SHANDONG QUNNONG GENGFENG AGRICULTURE GROUP CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG QUNNONG GENGFENG AGRICULTURE GROUP CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing food sampling equipment suffers from problems such as unstable sample fixation, susceptibility to crushing and damage, inconvenience in classification and storage, susceptibility to moisture and spoilage, and chaotic information labeling, which affect the accuracy of test results and work efficiency.

Method used

A sampling device including elastic clips and a clamping mechanism was designed. The elastic clips and food clamps are used to fix the samples. Combined with a moisture-absorbing liner and a label slot, the stability of the samples and information management are ensured. The portable design is adopted to improve the ease of operation.

Benefits of technology

It effectively prevents samples from shaking and colliding during transportation, keeps samples dry, ensures the accuracy of test results and work efficiency, and improves the practicality and portability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of sampling equipment for food safety detection, including sampling box main body, the top end of sampling box main body is equipped with top buckle cover, the inside of sampling box main body is evenly equipped with food sampling structure;The food sampling structure includes oppositely arranged elastic clamping piece a and elastic clamping piece b, and the inner wall of elastic clamping piece a and elastic clamping piece b is equipped with food clamp plate;The sampling equipment for food safety detection, structure design is reasonable, equipment is set by food sampling structure, using the elastic force of elastic clamping piece a and elastic clamping piece b, cooperate the food clamp plate of inner wall, the food sample of different sizes can be clamped and fixed, avoid sample to shake in transportation process.
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Description

Technical Field

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

[0002] In food safety supervision, sampling and testing are crucial steps in ensuring food quality and safety. Currently, many food sampling devices on the market suffer from problems such as unstable sample fixation, susceptibility to compression and damage, and inconvenience in categorized storage. Traditional sampling boxes lack specific internal fixing structures, allowing food samples of different forms (such as bulk snacks and fresh ingredients) to easily shake and collide during transportation, leading to sample deformation, contamination, or cross-mixing, which affects the accuracy of subsequent test results.

[0003] Meanwhile, existing equipment lacks adequate sample protection measures. Some moisture-sensitive food samples are prone to spoilage due to environmental humidity during storage. Furthermore, issues such as inconsistent sample labeling and mixing of sampling tools with samples increase the difficulty of pre-test preparation and reduce sampling efficiency. In addition, the portability of traditional sampling boxes is not ideal; the ease of operation for staff and the practicality of the equipment need improvement when conducting large-scale sampling at multiple locations. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for food safety testing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for food safety testing, comprising a sampling box body, the top of which is fitted with a top cover, and food sampling structures uniformly assembled inside the sampling box body; the food sampling structure includes elastic clips a and b arranged opposite to each other, and food clamps are installed on the inner walls of both elastic clips a and b; a fixing hole is provided at the upper end of the front side wall of the sampling box body, and a pressing mechanism is installed in the fixing hole; and drawers are installed at the lower ends of the left and right side walls of the sampling box body.

[0006] As a preferred embodiment of the sampling device for food safety testing according to this utility model, the clamping mechanism includes an inner screw cylinder installed in a fixing hole, a threaded rod screwed into the inside of the inner screw cylinder, and a pressure seat fitted at the end of the threaded rod, the pressure seat being fitted against the outer wall of the food sampling structure.

[0007] As a preferred embodiment of the sampling device for food safety testing according to this utility model, the side wall of the pressure seat is equipped with a bearing seat, the end of the threaded rod is assembled in the bearing seat, and the end of the threaded rod located outside the main body of the sampling box is equipped with a turntable.

[0008] As a preferred embodiment of the sampling device for food safety testing according to this utility model, the inner walls of both food clamps are equipped with moisture-absorbing liners, and the upper end of the outer wall of the elastic clamp b is provided with a label groove.

[0009] As a preferred embodiment of the sampling device for food safety testing according to this utility model, the rear side wall of the sampling box body is equipped with a telescopic pull rod, and the lower end of the front side wall of the sampling box body is equipped with a handle.

[0010] As a preferred embodiment of the sampling device for food safety testing according to this utility model, the two side walls of the top cover are equipped with U-shaped lifting rods, the outside of the U-shaped lifting rods are fitted with rubber tubes, and the four corners of the bottom of the sampling box body are equipped with drive wheels.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the design of the sampling device for food safety testing is reasonable;

[0012] The device, through its food sampling structure, utilizes the elastic force of elastic clips a and b, in conjunction with the food clamps on the inner wall, to clamp and fix food samples of different sizes, preventing them from shifting during transportation. Simultaneously, the clamping mechanism, via a threaded rod, drives the pressure seat to further conform to the outer wall of the food sampling structure, enhancing the fixing effect and effectively preventing morphological damage caused by sample collisions or compression, thus ensuring the original state of the sample for testing.

[0013] The moisture-absorbing lining inside the food sample holder absorbs excess moisture from the sample surface, keeping the sample dry and reducing the possibility of moisture absorption and spoilage. The label slot can be used to label sample information, avoiding confusion and improving the standardization of sample management. In addition, the main body of the sampling box forms a relatively enclosed space, reducing the contamination of the sample by the external environment and ensuring the reliability of the test results. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of the sampling box of this utility model;

[0016] Figure 3 This is a schematic diagram of the food sampling structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0018] In the diagram: 1. Sampling box body, 2. Top cover, 3. Handle, 4. Telescopic pull rod, 5. Rubber cylinder, 6. U-shaped handle, 7. Drive wheel, 8. Blade sampling structure, 81. Elastic clip a, 82. Elastic clip b, 83. Label slot, 84. Moisture-absorbing liner, 85. Blade clamping plate, 9. Pressing mechanism, 91. Pressing seat, 92. Bearing seat, 93. Threaded rod, 94. Internal threaded cylinder, 95. Turntable, 10. Fixing hole, 11. Storage drawer. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution:

[0021] In this technical solution, a sampling device for food safety testing includes a sampling box body 1, a top cover 2 mounted on the top of the sampling box body 1, and food sampling structures 8 uniformly assembled inside the sampling box body 1. The food sampling structure 8 includes elastic clips a81 and elastic clips b82 arranged opposite to each other, and food clamping plates 85 are installed on the inner walls of both elastic clips a81 and elastic clips b82. A fixing hole 10 is opened at the upper end of the front side wall of the sampling box body 1, and a pressing mechanism 9 is assembled in the fixing hole 10. A storage drawer 11 is assembled at the lower end of both the left and right side walls of the sampling box body 1.

[0022] The sampling box body 1 is made of food-grade PP material, with overall dimensions of 50cm × 30cm × 40cm (length × width × height). The top cover 2 is connected to the sampling box body 1 via hinges, and a silicone sealing ring is fitted at the fastening point, achieving IP54 dustproof and waterproof rating. Food sampling structures 8 are evenly distributed longitudinally along the interior of the sampling box body 1, with 3-5 groups, each group spaced 10cm apart. Elastic clips a81 and b82 are made of 2mm thick spring steel sheets, with a natural spacing of 5-15cm (adjustable according to sample size). The food clamping plate 85 is made of food-grade silicone, 5mm thick, with a non-slip textured surface and a texture depth of 0.5mm. Fixing holes 10 are 20mm in diameter and located on the front side wall of the sampling box body 1, 5cm from the top. The storage drawer 11 is made of ABS material, with dimensions of 20cm × 15cm × 10cm (length × width × height). The drawer slides are damped slides, with a pulling resistance of 5-8N.

[0023] In some technical solutions, the clamping mechanism 9 includes an inner screw cylinder 94 installed in the fixing hole 10. A threaded rod 93 is screwed into the inside of the inner screw cylinder 94. A pressure seat 91 is assembled at the end of the threaded rod 93. The pressure seat 91 is fitted to the outer wall of the food sampling structure 8.

[0024] The inner screw barrel 94 is made of brass, with an outer diameter of 20mm and a length of 30mm. The inner wall thread specification is M16×1.5. The threaded rod 93 is made of 45 steel, with a length of 15-25cm, and the thread matches that of the inner screw barrel 94. The pressure seat 91 has an arc-shaped structure (the arc matches the outer wall of the food sampling structure 8), is made of polytetrafluoroethylene, has a thickness of 8mm, and has a 3mm thick silicone buffer layer attached to the contact surface.

[0025] In some technical solutions, the side wall of the pressure seat 91 is equipped with a bearing seat 92, the end of the threaded rod 93 is assembled in the bearing seat 92, and the end of the threaded rod 93 located outside the sampling box body 1 is equipped with a turntable 95.

[0026] The bearing housing 92 uses a deep groove ball bearing (model 6203) with an outer diameter of 35mm, an inner diameter of 17mm, and a thickness of 10mm. It is fixed to the pressure seat 91 by bolts (bolt specification M4×10). The turntable 95 has a diameter of 5cm, a thickness of 1.5cm, and anti-slip ridges on its surface (ridge height 1mm, spacing 2mm). It is welded and fixed to the threaded rod 93, and the rotation torque is ≤5N・m.

[0027] In some technical solutions, the inner walls of both food clamps 85 are fitted with moisture-absorbing liners 84, and the upper end of the outer wall of the elastic clamp b82 is provided with a label groove 83.

[0028] The moisture-absorbing liner 84 is made of food-grade calcium chloride desiccant composite non-woven fabric with a thickness of 3mm. Its size is the same as that of the food clip 85 (15cm×10cm), and it can be removed and replaced with Velcro. The label slot 83 is made of transparent acrylic material with a size of 5cm×3cm×0.5cm (length×width×depth). The slot opening is equipped with a dust cover and is glued to the elastic clip b82.

[0029] In some technical solutions, the rear side wall of the sampling box body 1 is equipped with a telescopic pull rod 4, and the lower end of the front side wall of the sampling box body 1 is equipped with a handle 3.

[0030] The telescopic rod 4 is made of aluminum alloy, with a maximum extension length of 100cm, a retracted length of 40cm, a tube diameter of 25mm, and a button-type locking device. It has a load-bearing capacity of ≥50kg. The handle 3 is made of PP material, with an arc design (diameter of 3cm) and a 1mm thick rubber sleeve on the surface. It is fixed to the sampling box body 1 with screws (2 M6×15mm screws).

[0031] In some technical solutions, the two side walls of the top cover 2 are equipped with U-shaped lifting rods 6, the outside of the U-shaped lifting rods 6 is fitted with rubber cylinders 5, and the four corners of the bottom of the sampling box body 1 are equipped with drive wheels 7.

[0032] The U-shaped lifting rod 6 is made of stainless steel, with a diameter of 12mm and a length of 40cm. Both ends are connected to the main body 1 of the sampling box via a pivot, allowing for 360° rotation. The rubber cylinder 5 is made of food-grade silicone, with a thickness of 5mm and anti-slip texture (1mm deep) on the surface, and a length of 20cm. The drive wheel 7 is a universal wheel with a diameter of 5cm, made of high-strength polyurethane, with a load-bearing capacity of ≥10kg / wheel, and a braking function with a braking effect of ≥80%.

[0033] Working process and principle:

[0034] Work process

[0035] Sample preparation and placement: Staff first determine the number of food sampling structures 8 required based on the type and size of the food to be sampled. Open the top cover 2, and use external force to pry the elastic clips a81 and b82 apart to increase the distance between them. Place the food sample between the two food clips 85, then release the elastic clips, allowing the food clips 85 to clamp the sample using their own elastic restoring force.

[0036] Sample fixing: Close and lock the top cover 2, then operate the clamping mechanism 9. Rotate the turntable 95 to drive the threaded rod 93 to rotate inside the inner screw cylinder 94. Since the threaded rod is screwed to the inner screw cylinder, the threaded rod will move forward, causing the pressure seat 91 to gradually fit against the outer wall of the food sampling structure 8, further fixing the sample and preventing it from shaking during transportation.

[0037] Sample information labeling and tool storage: Place a label with sample information in the label slot 83 and close the top cover. Place the tools needed for the sampling process, such as sampling spoons and gloves, into the storage drawers 11 on the left and right sides and close the drawers.

[0038] Equipment movement and transportation: Choose the appropriate carrying method according to the actual situation. For short-distance movement, you can carry it by the U-shaped handle 6. The rubber tube 5 can increase friction and improve comfort. For long-distance movement, you can pull out the telescopic handle 4 and use the drive wheel 7 at the bottom to drag the equipment. Alternatively, you can hold the handle 3 to move it.

[0039] Sample Removal and Subsequent Processing: Upon arrival at the testing location, reverse the turntable 95 to detach the pressure seat 91 from the food sampling structure 8. Open the top cover 2, pry open the elastic clips a81 and b82, and remove the sample for testing. If the moisture-absorbing liner 84 has poor moisture absorption, it can be replaced with a new one using Velcro. Working Principle

[0040] Sample fixation principle: The elastic clips a81 and b82 in the food sampling structure 8 are made of spring steel sheets, which have good elasticity and can automatically adjust the clamping force according to the sample size. They work together with the food clamping plate 85 to achieve initial fixation. The pressing mechanism 9 converts the rotational motion into linear motion through the threaded transmission between the threaded rod 93 and the inner screw cylinder 94, so that the pressure seat 91 applies pressure to the food sampling structure 8, further enhancing the fixation effect and preventing the sample from shifting or being damaged due to vibration during transportation.

[0041] Sample protection principle: The food-grade silicone clip 85 is soft and prevents hard damage to the sample. The moisture-absorbing liner 84 is made of food-grade calcium chloride desiccant composite non-woven fabric, which absorbs moisture around the sample, keeps the sample dry, and prevents it from becoming damp and deteriorating. The label slot 83 allows for clear labeling of sample information, facilitating identification and management, while the dust cover prevents dust from contaminating the labels.

[0042] Portability principle: The telescopic handle 4 can be extended and retracted, and together with the drive wheel 7, it allows the equipment to be towed like a suitcase, saving manpower. The U-shaped lifting rod 6 can rotate 360° for easy carrying, and the rubber tube 5 increases the friction between the hand and the lifting rod, improving carrying comfort. The handle 3 provides another force point for moving the equipment, making movement more flexible.

[0043] Structural connection principle: Each component is assembled through a reasonable connection method. For example, the top cover 2 is connected to the sampling box body 1 by a hinge, which facilitates opening and closing. The inner screw cylinder 94 is fixed in the fixing hole 10, providing stable support and transmission foundation for the threaded rod 93. The setting of the bearing seat 92 ensures that the pressure seat 91 will not rotate when the threaded rod 93 rotates, thus ensuring the smooth operation of the pressing action.

[0044] 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 process, method, article, or apparatus.

[0045] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sampling device for food safety testing, comprising a sampling box body (1), characterized in that: The top of the sampling box body (1) is fitted with a top cover (2), and the interior of the sampling box body (1) is uniformly fitted with food sampling structures (8). The food sampling structure (8) includes elastic clips a (81) and elastic clips b (82) arranged opposite to each other, and food clips (85) are installed on the inner walls of both elastic clips a (81) and elastic clips b (82). The upper end of the front side wall of the sampling box body (1) is provided with a fixing hole (10), and a clamping mechanism (9) is installed in the fixing hole (10). The sampling box body (1) is equipped with drawers (11) on the lower ends of both the left and right side walls.

2. The sampling device for food safety testing according to claim 1, characterized in that: The pressing mechanism (9) includes an inner screw cylinder (94) installed in a fixing hole (10). A threaded rod (93) is screwed into the inside of the inner screw cylinder (94). A pressure seat (91) is fitted at the end of the threaded rod (93). The pressure seat (91) is fitted to the outer wall of the food sampling structure (8).

3. The sampling device for food safety testing according to claim 2, characterized in that: The side wall of the pressure seat (91) is fitted with a bearing seat (92), the end of the threaded rod (93) is fitted inside the bearing seat (92), and the end of the threaded rod (93) located outside the sampling box body (1) is fitted with a turntable (95).

4. The sampling device for food safety testing according to claim 1, characterized in that: The inner walls of both food clips (85) are fitted with moisture-absorbing liners (84), and the upper end of the outer wall of the elastic clip b (82) is provided with a label groove (83).

5. A sampling device for food safety testing according to claim 1, characterized in that: The rear side wall of the sampling box body (1) is equipped with a telescopic pull rod (4), and the lower end of the front side wall of the sampling box body (1) is equipped with a handle (3).

6. The sampling device for food safety testing according to claim 1, characterized in that: The top cover (2) is equipped with U-shaped lifting rods (6) on both sides, and rubber tubes (5) are fitted on the outside of the U-shaped lifting rods (6). Drive wheels (7) are installed at the four corners of the bottom of the sampling box body (1).