Pretreatment device for heavy metal detection sample in high-salt food

Abstract

The utility model relates to the technical field of heavy metal detection equipment, and discloses a high-salt food heavy metal detection sample pretreatment device which comprises a fixing frame, a connecting plate is fixedly connected to the top of the fixing frame, a shaking mechanism is arranged at the top of the connecting plate, and a moving plate is arranged at the top of the shaking mechanism. A stabilizing mechanism is arranged at the top of the moving plate; the shaking mechanism comprises a rotating disc, the side wall of the rotating disc is rotationally connected into the connecting plate, a motor is fixedly connected to the bottom of the connecting plate, the output end of the motor penetrates through the side wall of the connecting plate and is fixedly connected with the rotating disc, and a protruding block is fixedly connected to the top of the rotating disc. According to the utility model, the motor is started to drive the turntable to rotate, and the movable plate is driven to move under the matching of the convex block and the fixed frame, so that samples in the measuring cups are shaken, the mixing is more uniform, and the manual shaking process is simulated through the matching of the structures, and the mixing uniformity of the samples is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy metal detection equipment, in particular to a pretreatment device for heavy metal detection samples in high-salt foods. Background Technique

[0002] In the field of food safety, due to their high salt content, high-salt foods are prone to matrix interference during heavy metal detection, affecting the accuracy of detection results. To ensure the scientificity and reliability of detection, it is necessary to pretreat high-salt food samples before detection to effectively remove interfering substances and release heavy metal elements for subsequent analysis. As a key device in the entire detection process, the sample pretreatment device undertakes multiple operation steps such as crushing, mixing, extraction, and filtration. Its performance and efficiency are directly related to the accuracy of detection data and the standardization of the experimental process. With the increasing attention to heavy metal residues in foods, higher requirements are also put forward for the technical performance of the pretreatment device, especially in aspects such as improving processing efficiency, reducing human intervention, and enhancing automation.

[0003] Existing sample pretreatment devices mostly adopt a multi-functional module combination structure, which can crush, mix, heat extract, and filter high-salt food samples. Some devices achieve sufficient mixing and effective extraction of samples by setting a temperature control heating module and a magnetic stirring system. However, the existing technology mostly relies on mechanical stirring or static soaking in the sample mixing link, making it difficult to effectively simulate the uniform mixing effect brought by manual shaking, and prone to problems such as insufficient sample dispersion and incomplete release of heavy metals. Therefore, a pretreatment device for heavy metal detection samples in high-salt foods is proposed to solve the above problems. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a pretreatment device for heavy metal detection samples in high-salt foods, aiming to improve the problem that the existing technology mostly relies on mechanical stirring or static soaking, making it difficult to effectively simulate the uniform mixing effect brought by manual shaking and prone to insufficient sample dispersion.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A pretreatment device for heavy metal detection samples in high-salt foods, including a fixing frame, a connecting plate is fixedly connected to the top of the fixing frame, a shaking mechanism is arranged on the top of the connecting plate, a moving plate is arranged on the top of the shaking mechanism, and a stabilizing mechanism is arranged on the top of the moving plate;

[0007] The shaking mechanism includes a turntable, the side wall of the turntable is rotatably connected inside the connecting plate, the bottom of the connecting plate is fixedly connected with a motor, the output end of the motor penetrates through the side wall of the connecting plate and is fixedly connected with the turntable, the top of the turntable is fixedly connected with a convex block, the bottom of the moving plate is fixedly connected with a limiting rod, the top of the connecting plate is fixedly connected with a fixed block, and the side wall of the limiting rod is slidably connected inside the fixed block. The bottom of the moving plate is fixedly connected with a fixed frame.

[0008] As a further description of the above technical solution:

[0009] The convex block is arranged at a position away from the center of the turntable at the top of the turntable, and the convex block is arranged inside the fixed frame.

[0010] As a further description of the above technical solution:

[0011] The stabilizing mechanism includes a fixed ring, the fixed ring is arranged on the top of the moving plate, the side wall of the fixed ring is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected to the top of the moving plate, the inner wall of the fixed ring is fixedly connected with a rubber ring, and anti-slip grooves are formed inside the rubber ring.

[0012] As a further description of the above technical solution:

[0013] The top of the moving plate is fixedly connected with a rubber pad, and the rubber pad is arranged at the bottom of the fixed ring.

[0014] As a further description of the above technical solution:

[0015] A screw rod is threadedly connected inside the fixed ring, one end of the screw rod is fixedly connected with a turning handle, and the other end of the screw rod is fixedly connected with a rubber block.

[0016] As a further description of the above technical solution:

[0017] The side wall of the rubber block is slidably connected inside the rubber ring.

[0018] As a further description of the above technical solution:

[0019] A measuring cup is arranged inside the rubber ring, and a sealing cover is arranged on the top of the measuring cup.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by starting the motor to drive the turntable to rotate, and driving the moving plate to move under the cooperation of the convex block and the fixed frame, the sample in the measuring cup is shaken, so that the mixing is more uniform. Through the cooperation between the above structures, the artificial shaking process is simulated, and the mixing uniformity of the sample is effectively improved.

[0022] 2. In the present utility model, the measuring cup is placed inside the rubber ring, and then the screw is rotated by turning the torsion knob, so that the rubber block gradually fits on the outside of the measuring cup, thereby realizing the fixation of the measuring cup. Through the cooperation between the above structures, the stability of the placement of the measuring cup is enhanced, and at the same time, it has a certain adaptability to measuring cups of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic diagram of a heavy metal detection sample pretreatment device for high-salt foods proposed by the present utility model;

[0024] Figure 2 is a structural schematic diagram of a shaking mechanism of a heavy metal detection sample pretreatment device for high-salt foods proposed by the present utility model;

[0025] Figure 3 is a structural schematic diagram of a stabilizing mechanism of a heavy metal detection sample pretreatment device for high-salt foods proposed by the present utility model.

[0026] LEGEND DESCRIPTION:

[0027] 1. Fixing frame; 2. Connecting plate; 3. Motor; 4. Turntable; 5. Convex block; 6. Fixed block; 7. Moving plate; 8. Limiting rod; 9. Fixed frame; 10. Fixed ring; 11. Connecting rod; 12. Rubber pad; 13. Rubber ring; 14. Anti-slip groove; 15. Screw; 16. Rubber block; 17. Torsion knob; 18. Measuring cup; 19. Sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figures 1 - 3, an embodiment provided by the present utility model: a pretreatment device for heavy metal detection samples in high-salt foods, including a fixing frame 1 for the stable support of the overall structure. A connecting plate 2 is fixedly connected to the top of the fixing frame 1 to provide a bearing foundation for the upper mechanism. A shaking mechanism is arranged on the top of the connecting plate 2. By simulating the manual shaking process, the mixing uniformity of the samples is effectively improved. A moving plate 7 is arranged on the top of the shaking mechanism to provide a horizontal displacement adjustment function for sample processing. A stabilizing mechanism is arranged on the top of the moving plate 7 to ensure the stability of the sample position during shaking and movement, preventing sample deviation or leakage caused by vibration. The shaking mechanism includes a turntable 4, the side wall of the turntable 4 is rotatably connected inside the connecting plate 2. A motor 3 is fixedly connected to the bottom of the connecting plate 2, and the output end of the motor 3 penetrates the side wall of the connecting plate 2 and is fixedly connected to the turntable 4. By starting the motor 3, the turntable 4 can be driven to rotate. A convex block 5 is fixedly connected to the top of the turntable 4. A limiting rod 8 is fixedly connected to the bottom of the moving plate 7. A fixing block 6 is fixedly connected to the top of the connecting plate 2. The side wall of the limiting rod 8 is slidably connected inside the fixing block 6 to limit the movement range of the moving plate 7 and prevent excessive displacement from affecting the pretreatment effect. A fixing frame 9 is fixedly connected to the bottom of the moving plate 7. The convex block 5 is arranged at a position away from the center of the turntable 4. The convex block 5 makes a circular motion as the turntable 4 rotates. The convex block 5 is arranged inside the fixing frame 9. While making a circular motion, the convex block 5 can slide inside the fixing frame 9;

[0030] Referring to Figures 1 - 3 , the stabilizing mechanism includes a fixing ring 10 arranged on the top of the moving plate 7. A connecting rod 11 is fixedly connected to the side wall of the fixing ring 10, and the bottom end of the connecting rod 11 is fixedly connected to the top of the moving plate 7, enhancing the overall support strength. An inner wall of the fixing ring 10 is fixedly connected with a rubber ring 13. The rubber ring 13 is made of a high-elastic wear-resistant rubber material. Anti-slip grooves 14 are formed inside the rubber ring 13. The anti-slip grooves 14 can increase the friction force, ensuring more stable positioning of the clamped object during operation and preventing loosening or deviation. A rubber pad 12 is fixedly connected to the top of the moving plate 7. The rubber pad 12 is arranged at the bottom of the fixing ring 10, playing a further dual role of shock absorption and anti-slip protection. A screw rod 15 is threadedly connected inside the fixing ring 10. One end of the screw rod 15 is fixedly connected with a turning knob 17, facilitating the operator to quickly and accurately perform rotational adjustment, thereby flexibly controlling the clamping force. The other end of the screw rod 15 is fixedly connected with a rubber block 16. The side wall of the rubber block 16 is slidably connected inside the rubber ring 13 and can move as the screw rod 15 rotates. When the rubber block 16 abuts against an object, it can deform, and in cooperation with the rubber ring 13, the effect of fixing the object can be achieved. A measuring cup 18 is arranged inside the rubber ring 13 for placing samples. A sealing cover 19 is arranged on the top of the measuring cup 18, which can effectively prevent liquid volatilization or leakage, ensuring the accuracy and safety of measurement.

[0031] Working principle: When using this device for work, first place the sample inside the measuring cup 18, then insert the sealing cover 19 into the measuring cup 18 for sealing, then place it inside the rubber ring 13, and then rotate the screw rod 15 through the knob 17 to gradually make the rubber block 16 fit against the outside of the measuring cup 18 to fix the measuring cup 18. Then start the motor 3 to drive the turntable 4 to rotate. As the convex block 5 moves, it will drive the moving plate 7 to move through the fixed frame 9. Also, since the moving plate 7 is restricted by the fixed block 6 through the limiting rod 8, the moving plate 7 will move left and right reciprocally as the convex block 5 moves, so as to shake the sample inside the measuring cup 18 to make its mixing more uniform.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sample pretreatment device for detecting heavy metals in high-salt food, comprising a fixing frame (1), characterized in that: The top of the fixed frame (1) is fixedly connected to a connecting plate (2), the top of the connecting plate (2) is provided with a shaking mechanism, the top of the shaking mechanism is provided with a moving plate (7), and the top of the moving plate (7) is provided with a stabilizing mechanism; The shaking mechanism comprises a rotating disk (4), the side wall of the rotating disk (4) is rotatably connected to the inside of the connecting plate (2), the bottom of the connecting plate (2) is fixedly connected to a motor (3), the output end of the motor (3) passes through the side wall of the connecting plate (2) and is fixedly connected to the rotating disk (4), the top of the rotating disk (4) is fixedly connected to a protrusion (5), the bottom of the moving plate (7) is fixedly connected to a limiting rod (8), the top of the connecting plate (2) is fixedly connected to a fixed block (6), the side wall of the limiting rod (8) is slidably connected to the inside of the fixed block (6), and the bottom of the moving plate (7) is fixedly connected to a fixed frame (9).

2. A sample pretreatment device for detecting heavy metals in high-salt food according to claim 1, characterized in that: The convex block (5) is arranged at a position on the top of the rotating disk (4) away from the center of the circle, and the convex block (5) is arranged inside the fixed frame (9).

3. A sample pretreatment device for detecting heavy metals in high-salt food according to claim 1, characterized in that: The stabilizing mechanism comprises a fixed ring (10), the fixed ring (10) being arranged on the top of the movable plate (7), the side wall of the fixed ring (10) being fixedly connected to a connecting rod (11), the bottom end of the connecting rod (11) being fixedly connected to the top of the movable plate (7), the inner wall of the fixed ring (10) being fixedly connected to a rubber ring (13), and an anti-slip groove (14) being provided inside the rubber ring (13).

4. A sample pretreatment device for detecting heavy metals in high-salt food according to claim 3, characterized in that: A rubber pad (12) is fixedly connected to the top of the movable plate (7), and the rubber pad (12) is arranged at the bottom of the fixed ring (10).

5. The sample pretreatment device for detecting heavy metals in high-salt food according to claim 3, characterized in that: The fixing ring (10) is internally threadedly connected to a screw rod (15), one end of the screw rod (15) is fixedly connected to a toggle (17), and the other end of the screw rod (15) is fixedly connected to a rubber block (16).

6. A sample pretreatment device for detecting heavy metals in high-salt food according to claim 5, characterized in that: The side wall of the rubber block (16) is slidably connected inside the rubber ring (13).

7. A sample pretreatment device for detecting heavy metals in high-salt food according to claim 3, characterized in that: A measuring cup (18) is arranged inside the rubber ring (13), and a sealing cover (19) is arranged on the top of the measuring cup (18).

Images