Equipment for detecting heavy metal ions in food

Abstract

The invention relates to the technical field of food detection, in particular to food heavy metal ion detection equipment which comprises a base and a first cylinder, an annular plate is fixedly connected to the upper portion of the base through a plurality of supporting rods, a rectangular hole is formed in the side wall of the annular plate, and a rectangular plate is fixedly connected to the side wall of the annular plate through a connecting strip; a motor is fixedly connected to the side wall of the annular plate, a first rod is fixedly connected to the output end of the motor, a U-shaped plate is fixedly connected to one end of the first rod, two cross rods are fixedly connected to one end of the U-shaped plate, a through hole is formed in the side wall of the first cylinder, and a second rod is connected to the side wall of the first cylinder in a penetrating mode. One end of the second rod is slidably connected with the two transverse rods, and the second rod is slidably connected into the rectangular hole. The food reacts with various color developing agents, the detection efficiency is improved, the food reacts after being cut, crushed and ground, and the detection rate of heavy metal ions can be further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and in particular to a device for detecting heavy metal ions in food. Background Art

[0002] In some areas, food, soil and water quality have gradually been polluted by industrial waste gas, wastewater and waste residue. Some people even use industrial wastewater directly to irrigate crops, causing the accumulation of heavy metals such as cadmium, copper, arsenic, chromium, mercury, nickel and aluminum in the soil cultivating layer, resulting in excessive heavy metals in agricultural products and foods produced in this soil (such as rice, beans and other foods).

[0003] At present, in the process of heavy ion detection of food, heavy metal ions and color developers are often used to react. The mixture of the two will produce a color change, and then it is determined whether there is a situation where heavy ions exceed the standard. Existing food heavy metal ion detection devices often need to first use equipment to cut and crush the food, and then add it to the color developer to react. The operation process is cumbersome, and if the cut food is in tiny pieces, it will also cause the subsequent reaction time to increase, resulting in low detection efficiency. Moreover, when it is necessary to react food with different types of heavy metal color developers, multiple color developers need to be tested in turn, and the detection efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a device for detecting heavy metal ions in food.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A heavy metal ion detection device in food comprises a base and a first cylinder, wherein the upper part of the base is fixedly connected to a circular plate through a plurality of support rods, a rectangular hole is provided on the side wall of the circular plate, a rectangular plate is fixedly connected to the side wall of the circular plate through a connecting strip, a motor is fixedly connected to the side wall of the circular plate, a first rod is fixedly connected to the output end of the motor, a U-shaped plate is fixedly connected to one end of the first rod, two cross bars are fixedly connected to one end of the U-shaped plate, a through hole is provided on the side wall of the first cylinder, a second rod is penetrated and connected to the side wall of the first cylinder, one end of the second rod is slidably connected to the two cross bars, and the The other end of the second rod is slidably connected to the inside of the rectangular hole, a plurality of raised plates are fixedly connected to the inner wall of the circular ring plate, a plurality of cavities are opened in the inner wall of the first cylinder, a sliding rod is slidably connected to the inner wall of each cavity, the side wall of the sliding rod is elastically connected to the side wall of the first cylinder through a first spring, a rolling block is fixedly connected to one end of the sliding rod, a plurality of glass boxes are evenly distributed along a circle on the top of the base, a telescopic airbag is fixedly connected to the top wall of each glass box, the other end of each telescopic airbag is slidably connected to the bottom wall of the first cylinder, and a crushing mechanism for cutting food is provided on the top of the circular ring plate.

[0006] Furthermore, the crushing mechanism includes a plurality of folding rods fixedly connected to the top of the circular ring plate, the plurality of folding rods are commonly fixedly connected to a circular box, the bottom wall of the circular box passes through a plurality of rotating rods rotatably connected thereto, each rotating rod is provided with a plurality of cutting blades on the top, the bottom wall of the rotating rod is fixedly connected to a small gear, the top of the first cylinder is fixedly connected to a cross plate, the top wall of the cross plate is connected to a cylinder, the side wall of the cylinder is fixedly connected to a sliding column, the bottom wall of the circular box passes through a second cylinder rotatably connected thereto, the side wall of the second cylinder is fixedly connected to a large gear, the large gear is meshingly connected to a plurality of small gears, a spiral groove is provided on the inner wall of the second cylinder, and the sliding column is slidably connected inside the spiral groove.

[0007] Furthermore, a circular baffle is fixedly connected to the bottom wall of the circular box, and a plurality of partitions are evenly fixedly connected to the side walls of the circular baffle.

[0008] Furthermore, the circular baffle side wall is slidably connected with a plurality of push rods, the inner wall of the second cylinder is fixedly connected with a plurality of arc blocks, one end of the push rod is fixedly connected with a push plate, the push plate is elastically connected to the circular baffle side wall through a second spring, and the push rod and a corresponding arc block slide against each other.

[0009] Furthermore, a plurality of telescopic feeding tubes are fixedly connected to and penetrate the bottom wall of the circular box, and one end of each telescopic feeding tube away from the circular box is fixedly connected to a corresponding cavity.

[0010] Furthermore, a telescopic discharge tube is fixedly connected to the bottom wall of the cavity, and one end of each telescopic discharge tube away from the cavity is fixedly connected to a corresponding glass box.

[0011] Furthermore, a plurality of medicine cavities are formed on the inner wall of the base, each of the medicine cavities is fixedly connected to the telescopic airbag via a one-way liquid inlet pipe, and the telescopic airbag is fixedly connected to the glass box via a one-way liquid outlet pipe.

[0012] The present invention has the following advantages: 1. By setting structures such as a crossbar, a second rod and multiple cylinders, the first cylinder will move upward first, and the multiple rotating rods will be driven to rotate rapidly through structures such as cylinders, sliding columns and spiral grooves. The rotating rods cut the food through the cutting blades, so that the food is cut into small blocks or flakes, completing the initial crushing, and the driving push rod pushes the cut food to each telescopic feeding tube through the push plate to drop it; 2. In the above process, the first cylinder will also stretch a plurality of telescopic airbags, and the plurality of telescopic airbags will respectively draw a certain volume of developer from a corresponding medicine cavity and enter the interior of the telescopic airbags; 3. Subsequently, the first cylinder changes its motion from the vertical direction to a certain angle of rotation. As a result, multiple sliding rods will come into contact with the convex plate, and the sliding rods will drive the rolling blocks to further roll and crush the块状 food that has fallen into the cavity, improving the degree of food crushing and the detection rate during the subsequent mixing with the chromogenic reagent. 4. When the first cylinder moves downward in the vertical direction, the food that has been crushed twice at this time falls into the glass box. Moreover, the first cylinder will squeeze multiple telescopic airbags, and the chromogenic reagent pumped into each telescopic airbag is squeezed into a corresponding glass box, where it comes into contact and reacts with the food that has been crushed multiple times in the glass box. This can react the food with multiple chromogenic agents at one time, improving the detection efficiency. And reacting the food after cutting, crushing, and rolling can further improve the detection rate of heavy metal ions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a heavy metal ion detection device for food proposed by the present invention; Figure 2 is a top view of the interior of a circular box in a heavy metal ion detection device for food proposed by the present invention; Figure 3 is Figure 1 an enlarged schematic diagram of the structure of part A in Figure 4 is a top view of the arrangement of glass boxes on the upper part of the base in a heavy metal ion detection device for food proposed by the present invention.

[0014] In the figure: 1 base, 2 support rod, 3 circular ring plate, 4 motor, 5 first rod, 6 U-shaped plate, 7 cross bar, 8 first cylinder, 9 through hole, 10 rectangular hole, 11 second rod, 12 rectangular plate, 13 circular box, 14 circular baffle, 15 second cylinder, 16 spiral groove, 17 cross plate, 18 cylinder, 19 sliding column, 20 large gear, 21 small gear, 22 rotating rod, 23 cutting blade, 24 push rod, 26 arc-shaped block, 27 push plate, 28 glass box, 29 telescopic feeding pipe, 30 telescopic airbag, 31 cavity, 32 convex plate, 33 sliding rod, 34 first spring, 35 rolling block, 36 partition plate, 37 reagent cavity. DETAILED DESCRIPTION OF THE INVENTION

[0015] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0016] Refer to Figure 1-4 A heavy metal ion detection device in food comprises a base 1 and a first cylinder 8, the first cylinder 8 is slidably connected to the inner wall of a circular ring plate 3 through a plurality of connecting rods, the upper part of the base 1 is fixedly connected to the circular ring plate 3 through a plurality of supporting rods 2, a rectangular hole 10 is opened on the side wall of the circular ring plate 3, a rectangular plate 12 is fixedly connected to the side wall of the circular ring plate 3 through a connecting strip, the rectangular plate 12 is arranged inside the rectangular hole 10, and a rectangular hole groove exists between the rectangular plate 12 and the rectangular hole 10, a motor 4 is fixedly connected to the side wall of the circular ring plate 3, a first rod 5 is fixedly connected to the output end of the motor 4, one end of the first rod 5 is fixedly connected to a U-shaped plate 6, one end of the U-shaped plate 6 is fixedly connected to two cross bars 7, and the two cross bars 7 are arranged in parallel at one end of the U-shaped plate 6, a through hole 9 is opened on the side wall of the first cylinder 8, the first rod 5 passes through the through hole 9, and the side wall of the first cylinder 8 passes through A second rod 11 is rotatably connected, one end of the second rod 11 is slidably connected to the two cross bars 7, and the other end of the second rod 11 is slidably connected to the inside of the rectangular hole 10. A plurality of raised plates 32 are fixedly connected to the inner wall of the circular ring plate 3. A plurality of cavities 31 are opened on the inner wall of the first cylinder 8. A sliding rod 33 is slidably connected to the inner wall of each cavity 31. The side wall of the sliding rod 33 is elastically connected to the side wall of the first cylinder 8 through a first spring 34. A rolling block 35 is fixedly connected to one end of the sliding rod 33. A plurality of glass boxes 28 are evenly fixed along the top of the base 1. The setting trajectory of the plurality of glass boxes 28 is a circular structure when viewed from top to bottom. A telescopic air bag 30 is fixedly connected to the top wall of each glass box 28. The other end of each telescopic air bag 30 is slidably connected to the bottom wall of the first cylinder 8. A crushing mechanism for cutting food is provided on the top of the circular ring plate 3.

[0017] The crushing mechanism includes a plurality of folding rods fixedly connected to the top of the circular ring plate 3, and the plurality of folding rods are fixedly connected to a circular box 13 together. The bottom wall of the circular box 13 passes through a plurality of rotating rods 22 and is rotatably connected thereto. The number of the rotating rods 22, the cavity 31 and the glass box 28 is the same. A plurality of cutting blades 23 are arranged on the top of each rotating rod 22. A pinion 21 is fixedly connected to the bottom wall of the rotating rod 22. A transverse plate 17 is fixedly connected to the top of the first cylinder 8. A cylinder 18 is connected to the top wall of the transverse plate 17. A sliding column 19 is fixedly connected to the side wall of the cylinder 18. A second cylinder 15 is rotatably connected to the bottom wall of the circular box 13. The second cylinder 15 can only rotate without generating vertical displacement. A large gear 20 is fixedly connected to the side wall of the second cylinder 15. The large gear 20 is meshingly connected to a plurality of small gears 21. By setting the transmission ratio of the large gear 20 and the small gear 21, the rotating rod 22 can obtain a faster rotation speed. A spiral groove 16 is provided on the inner side wall of the second cylinder 15, and the sliding column 19 is slidably connected inside the spiral groove 16.

[0018] The bottom wall of the circular box 13 is fixedly connected to a circular baffle 14, and the side walls of the circular baffle 14 are evenly fixedly connected to multiple partitions 36. The multiple partitions 36 divide the area formed between the circular box 13 and the circular baffle 14 into multiple independent areas, and the number of the multiple independent areas is consistent with the number of cavities 31.

[0019] A plurality of push rods 24 are slidably connected to the side wall of the circular baffle 14, and the number of the push rods 24 is consistent with the number of the plurality of independent areas. A plurality of arc blocks 26 are fixedly connected to the inner wall of the second cylinder 15, one end of the push rod 24 is fixedly connected to a push plate 27, a second spring is fixedly connected to the side wall of the push plate 27, the second spring is fixedly connected to the side wall of the circular baffle 14, and the push rod 24 slides against a corresponding arc block 26.

[0020] A plurality of telescopic feeding tubes 29 are fixedly connected to the bottom wall of the circular box 13, and one end of each telescopic feeding tube 29 away from the circular box 13 is fixedly connected to a corresponding cavity 31. Electronic valves are provided inside the telescopic feeding tube 29 and the telescopic discharge tube.

[0021] A telescopic discharge tube is fixedly connected to the bottom wall of the cavity 31 , and one end of each telescopic discharge tube away from the cavity 31 is fixedly connected to a corresponding glass box 28 .

[0022] The inner wall of the base 1 is provided with a plurality of medicine chambers 37, and each medicine chamber 37 is fixedly connected to the telescopic airbag 30 via a one-way liquid inlet tube. The telescopic airbag 30 is made of elastic material and can be extended and compressed in the vertical direction. When extended, the color developer inside the medicine chamber 37 will be drawn into, and when compressed, the color developer will be squeezed out. The telescopic airbag 30 is fixedly connected to the glass box 28 via a one-way liquid outlet tube. The one-way liquid inlet tube only allows the color developer inside the medicine chamber 37 to be drawn into the telescopic airbag 30, and the one-way liquid outlet tube only allows the color developer inside the telescopic airbag 30 to be squeezed into the glass box 28.

[0023] In the present invention, since the multiple partitions 36 divide the area formed by the circular box 13 and the circular baffle 14 into multiple independent areas, and a cutting blade 23 is provided inside each independent area, the food that needs to be tested can be placed inside these multiple independent areas, and the color developer for detecting different heavy metal ions can be filled inside the multiple reagent cavities 37.

[0024] Turn on the motor 4, and the output end of the motor 4 drives the first rod 5 to rotate, and then the first rod 5 drives the C-shaped plate 6 to rotate, and the C-shaped plate 6 drives the two cross bars 7 to rotate synchronously. Because the second rod 11 is always slidably connected between the two cross bars 7, when the cross bar 7 moves, it will drive the second rod 11 to slide inside the hole groove formed by the rectangular hole 10 and the rectangular plate 12, and the four corners of the hole groove are all chamfered. In the above process, as the second rod 11 slides inside the hole groove, the second rod 11 will drive the first cylinder 8 to slide upward for a distance first, and then the first cylinder 8 will rotate a certain angle, and then the first cylinder 8 will slide downward for a distance, and finally the first cylinder 8 will rotate in the opposite direction for a certain angle, and then repeat the above process.

[0025] When the first cylinder 8 completes the above process once, the first cylinder 8 will first drive the cylinder 18 to move upward synchronously, and the sliding column 19 fixedly connected to the side wall of the cylinder 18 is slidably connected inside the spiral groove 16, and then the sliding column 19 will drive the second cylinder 15 to rotate a certain angle through the spiral groove 16, and the second cylinder 15 drives the multiple rotating rods 22 to rotate more circles quickly through the large gear 20 and the small gear 21, and then the rotating rods 22 complete the cutting of the food through the cutting blades 23, so that the food is cut into small blocks or sheets, and the preliminary crushing is completed.

[0026] When the first cylinder 8 moves upward, the multiple telescopic airbags 30 will be stretched, and the multiple telescopic airbags 30 will respectively draw out a certain volume of developer from the inside of a corresponding medicine cavity 37 and enter the inside of the telescopic airbag 30.

[0027] In the above process, when the second cylinder 15 rotates, it will also contact the multiple push rods 24 through the multiple arc blocks 26, thereby squeezing and pushing the push rods 24 to slide a distance away from the second cylinder 15, and then the push rods 24 push the cut food to each telescopic feeding tube 29 through the push plate 27 to drop it.

[0028] Subsequently, the cut food enters the corresponding cavity 31 through the corresponding telescopic feeding tube 29. At this time, the first cylinder 8 changes from vertical movement to rotation at a certain angle, and then multiple slide bars 33 will come into contact with the raised plate 32. Both ends of the raised plate 32 are raised a certain distance in the middle of the inclined surface, and then the slide bars 33 will drive the crushing blocks 35 to crush the block food that falls into the cavity 31 again, thereby improving the crushing degree of the food and improving the detection rate when it is mixed with the color developing reagent later.

[0029] When the first cylinder 8 moves downward in a vertical manner, the food that has been crushed twice falls into the glass box 28, and the first cylinder 8 will squeeze multiple telescopic air bags 30, and then the color developing reagent drawn into each telescopic air bag 30 is squeezed into the corresponding glass box 28, and contacts and reacts with the food that has been crushed multiple times in the glass box 28. The food can be reacted with multiple color developing agents at one time, thereby improving the efficiency of detection. In addition, by cutting, crushing and rolling the food before reacting, the detection rate of heavy metal ions can be further improved.

[0030] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting heavy metal ions in food, comprising a base (1) and a first cylinder (8), characterized in that: The upper part of the base (1) is fixedly connected to a circular plate (3) via a plurality of support rods (2); a rectangular hole (10) is provided on the side wall of the circular plate (3); a rectangular plate (12) is fixedly connected to the side wall of the circular plate (3) via a connecting strip; a motor (4) is fixedly connected to the side wall of the circular plate (3); a first rod (5) is fixedly connected to the output end of the motor (4); one end of the first rod (5) is fixedly connected to a U-shaped plate (6); one end of the U-shaped plate (6) is fixedly connected to two cross bars (7); a through hole (9) is provided on the side wall of the first cylinder (8); a second rod (11) is connected through the side wall of the first cylinder (8); one end of the second rod (11) is slidably connected to the two cross bars (7); the other end of the second rod (11) is slidably connected to the two cross bars (7); Inside the rectangular hole (10), the inner wall of the circular plate (3) is fixedly connected to a plurality of raised plates (32), the inner wall of the first cylinder (8) is provided with a plurality of cavities (31), the inner wall of each of the cavities (31) is penetrated by a sliding rod (33) in sliding connection, the side wall of the sliding rod (33) is elastically connected to the side wall of the first cylinder (8) through a first spring (34), one end of the sliding rod (33) is fixedly connected to a rolling block (35), a plurality of glass boxes (28) are evenly distributed along a circle on the top of the base (1), the top wall of each of the glass boxes (28) is fixedly connected to a telescopic air bag (30), the other end of each of the telescopic air bags (30) is slidably connected to the bottom wall of the first cylinder (8), and a crushing mechanism for cutting food is provided on the top of the circular plate (3).

2. The heavy metal ion detection device in food according to claim 1, characterized in that: The crushing mechanism comprises a plurality of folding rods fixedly connected to the top of the circular ring plate (3), the plurality of folding rods being fixedly connected to a circular box (13) together, a plurality of rotating rods (22) being rotatably connected to the bottom wall of the circular box (13), a plurality of cutting blades (23) being provided on the top of each rotating rod (22), a pinion gear (21) being fixedly connected to the bottom wall of the rotating rod (22), a transverse plate (17) being fixedly connected to the top of the first cylinder (8), a cylinder (18) being connected to the top wall of the transverse plate (17), a sliding column (19) being fixedly connected to the side wall of the cylinder (18), a second cylinder (15) being rotatably connected to the bottom wall of the circular box (13), a large gear (20) being fixedly connected to the side wall of the second cylinder (15), the large gear (20) being meshingly connected to the plurality of small gears (21), a spiral groove (16) being provided on the inner side wall of the second cylinder (15), and the sliding column (19) being slidably connected inside the spiral groove (16).

3. A heavy metal ion detection device in food according to claim 2, characterized in that: The bottom wall of the circular box (13) is fixedly connected to a circular baffle (14), and the side walls of the circular baffle (14) are evenly and fixedly connected to a plurality of partitions (36).

4. The heavy metal ion detection device in food according to claim 3, characterized in that: A plurality of push rods (24) are slidably connected to the side wall of the circular baffle (14), a plurality of arc blocks (26) are fixedly connected to the inner wall of the second cylinder (15), one end of the push rod (24) is fixedly connected to a push plate (27), the push plate (27) is elastically connected to the side wall of the circular baffle (14) via a second spring, and the push rod (24) and a corresponding arc block (26) slide against each other.

5. The heavy metal ion detection device in food according to claim 2, characterized in that: A plurality of telescopic feeding tubes (29) are fixedly connected to and penetrate the bottom wall of the circular box (13), and one end of each telescopic feeding tube (29) away from the circular box (13) is fixedly connected to a corresponding cavity (31).

6. The heavy metal ion detection device in food according to claim 5, characterized in that: A telescopic discharge tube is fixedly connected to and penetrates the bottom wall of the cavity (31), and one end of each telescopic discharge tube away from the cavity (31) is fixedly connected to a corresponding glass box (28).

7. The heavy metal ion detection device in food according to claim 6, characterized in that: The inner wall of the base (1) is provided with a plurality of medicine cavities (37), each of the medicine cavities (37) being fixedly connected to the telescopic airbag (30) via a one-way liquid inlet pipe, and the telescopic airbag (30) being fixedly connected to the glass box (28) via a one-way liquid outlet pipe.

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