Sampling device for food detection

Abstract

A sampling device for food detection belongs to the technical field of liquid collection for food detection and is characterized by comprising a connecting handle and a positioning through hole formed in the middle of the front of the upper surface of the connecting handle, and a lifting device is connected to the middle of the front of the upper surface of the connecting handle. A movable rotating disc is inserted in the middle of the front edge of the upper surface of the connecting handle, a plurality of collecting devices are evenly distributed and inserted in the peripheral edge of the upper surface of the movable rotating disc, a sealing upper cover is connected to the circle center of the upper surface of the movable rotating disc, and a plurality of positioning counter bores are evenly distributed in the peripheral edge of the upper surface of the sealing upper cover; a worker can quickly replace a new liquid collecting tube at any time when collecting various samples, and can prevent fingers from being inserted when a needle head is inserted into a sample bottle, so that the worker can quickly mount a plurality of liquid collecting tubes on the collector at any time.

Description

Technical fields:

[0001] This utility model belongs to the technical field of liquid sampling instruments for food testing, and specifically relates to a sampling device for food testing. Background technology:

[0002] Existing liquid food samplers require staff to frequently change collection tubes when collecting multiple samples. When changing needles, staff may prick their fingers and cause infection. Furthermore, existing multi-collection tube collectors require a significant amount of time to install and replace the collection tubes, making them inconvenient for staff to operate. Utility Model Content:

[0003] The purpose of this invention is to allow staff to quickly replace new collection tubes when collecting multiple samples, prevent finger insertion when inserting needles into sample vials, and facilitate the quick installation of multiple collection tubes onto the collector. The technical solution is as follows:

[0004] A sampling device for food testing, characterized in that: it includes a connecting handle 1 and a positioning through hole 2 located at the center of the front of the upper surface of the connecting handle 1; a lifting device 3 is connected to the center of the front of the upper surface of the connecting handle 1; a movable turntable 4 is inserted at the center of the front edge of the upper surface of the connecting handle 1; a plurality of collecting devices 5 are evenly distributed around the four edges of the upper surface of the movable turntable 4; a sealing cover 6 is connected to the center of the upper surface of the movable turntable 4; and a plurality of collecting devices 5 are evenly distributed around the four edges of the upper surface of the sealing cover 6. The lifting device 3 includes a vertical plate 3-1, a sliding groove 3-2, a rodless cylinder 3-3, and a pressure column 3-4, with several positioning countersunk holes 7. The vertical plate 3-1 has a sliding groove 3-2 at the center of its front surface. A rodless cylinder 3-3 is inserted into the center of the sliding groove 3-2. A pressure column 3-4 is connected to the center of the front surface of the rodless cylinder 3-3. The vertical plate 3-1 is connected to the front of the upper surface of the connecting handle 1. The pressure column 3-4 is L-shaped, and its lower end is positioned relative to the positioning countersunk holes 7. In conjunction with this, the movable turntable 4 includes a rotating column 4-1, insertion holes 4-2, retaining rings 4-3, and springs 4-4. Several insertion holes 4-2 are evenly distributed around the perimeter of the upper surface of the rotating column 4-1. A retaining ring 4-3 is inserted into the lower part of the inner side surface of each insertion hole 4-2. A spring 4-4 ​​is connected to the center of the upper surface of each retaining ring 4-3. The rotating column 4-1 is inserted into the front edge of the upper surface of the connecting handle 1. The sealing cover 6 is inserted into the center of the upper surface of the rotating column 4-1. The insertion holes 4-1... -2 corresponds to the position of the positioning countersunk hole 7. The collecting device 5 includes a negative pressure bottle 5-1, a rubber cap 5-2, a needle 5-3, and a chuck 5-4. The rubber cap 5-2 is inserted into the center of the lower surface of the negative pressure bottle 5-1. The needle 5-3 is inserted into the center of the lower surface of the rubber cap 5-2. The chuck 5-4 is inserted above the side surface of the needle 5-3. The upper and lower ends of the needle 5-3 are conical. The negative pressure bottle 5-1 is inserted into the insertion hole 4-2. The chuck 5-4 is clamped on the upper surface of the spring 4-4.

[0005] The beneficial effects of this utility model are: when collecting multiple samples, staff can quickly replace the new collection tube at any time, and it can prevent fingers from being inserted when the needle is inserted into the sample bottle. Staff can also quickly install multiple collection tubes on the collector at any time, making it convenient for staff to operate and use. Attached image description:

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the lifting device 3 of this utility model;

[0008] Figure 3 This is a schematic diagram of the movable turntable 4 of this utility model;

[0009] Figure 4 This is a schematic diagram of the structure of the collection device 5 of this utility model;

[0010] In the diagram: 1. Connecting handle; 2. Positioning through hole; 3. Lifting device; 4. Movable turntable; 5. Collecting device; 6. Sealing cover; 7. Positioning countersunk hole; 8. Vertical plate; 9. Slide groove; 10. Rodless cylinder; 11. Pressure column; 12. Rotating column; 13. Insertion hole; 14. Snap ring; 15. Spring; 16. Negative pressure bottle; 17. Rubber cap; 18. Needle; 19. Chuck; 20. Detailed implementation method:

[0011] Reference Figure 1 Figure 2 Figure 3 Figure 4 The sampling device for food testing is characterized by comprising a connecting handle 1 and a positioning through hole 2 located at the center of the front of the upper surface of the connecting handle 1; a lifting device 3 is connected to the center of the front of the upper surface of the connecting handle 1; a movable turntable 4 is inserted at the center of the front edge of the upper surface of the connecting handle 1; a plurality of collecting devices 5 are evenly distributed around the four edges of the upper surface of the movable turntable 4; and a sealing cover 6 is connected to the center of the upper surface of the movable turntable 4. A plurality of collecting devices 5 are evenly distributed around the four edges of the upper surface of the sealing cover 6. The lifting device 3 includes a vertical plate 3-1, a sliding groove 3-2, a rodless cylinder 3-3, and a pressure column 3-4, with several positioning countersunk holes 7 distributed throughout. The vertical plate 3-1 has a sliding groove 3-2 at the center of its front surface. A rodless cylinder 3-3 is inserted into the center of the sliding groove 3-2. A pressure column 3-4 is connected to the center of the front surface of the rodless cylinder 3-3. The vertical plate 3-1 is connected to the front of the upper surface of the connecting handle 1. The pressure column 3-4 is L-shaped, and its lower end is positioned relative to the positioning countersunk holes 7. The movable turntable 4, in cooperation with each other, includes a rotating column 4-1, insertion holes 4-2, retaining rings 4-3, and springs 4-4. Several insertion holes 4-2 are evenly distributed around the perimeter of the upper surface of the rotating column 4-1. A retaining ring 4-3 is inserted into the lower part of the inner side surface of each insertion hole 4-2. A spring 4-4 ​​is connected to the center of the upper surface of each retaining ring 4-3. The rotating column 4-1 is inserted into the front edge of the upper surface of the connecting handle 1. The sealing cover 6 is inserted into the center of the upper surface of the rotating column 4-1. The insertion holes 4-1... -2 corresponds to the position of the positioning countersunk hole 7. The collecting device 5 includes a negative pressure bottle 5-1, a rubber cap 5-2, a needle 5-3, and a chuck 5-4. The rubber cap 5-2 is inserted into the center of the lower surface of the negative pressure bottle 5-1. The needle 5-3 is inserted into the center of the lower surface of the rubber cap 5-2. The chuck 5-4 is inserted above the side surface of the needle 5-3. The upper and lower ends of the needle 5-3 are conical. The negative pressure bottle 5-1 is inserted into the insertion hole 4-2. The chuck 5-4 is clamped on the upper surface of the spring 4-4.

[0012] In use, the operator first inserts several negative pressure bottles 5-1 from the collection device 5 into several insertion holes 4-2 on the movable turntable 4, while simultaneously inserting the needle 5-3 into the spring 4-4. Then, the sealing cap 6 is inserted into the upper surface of the rotating column 4-1, and the positioning countersunk hole 7 is aligned with the negative pressure bottle 5-1. Next, the operator holds the connecting handle 1 and aligns the positioning through hole 2 with the sample opening. Then, the operator presses the control button to start the rodless cylinder 3-3 to move downward in the slide 3-2, while the pressure column 3-4 penetrates the positioning countersunk hole 7 to push the negative pressure bottle 5-1 downward. Furthermore, the needle 5-3 penetrates the spring 4-4 ​​and the retaining ring 4-3 to insert into the sample. When the chuck 5-4 is locked in the spring 4-4, the needle tip above the needle 5-3 pierces the inner membrane of the rubber cap 5-4 and inserts into the negative pressure bottle 5-1. At the same time, the pressure inside the negative pressure bottle 5-1 is less than the external pressure, causing the liquid sample to be drawn into the negative pressure bottle. Then, when the control button is released, the rodless cylinder 3-3 returns to its original position. Simultaneously, the spring 4-4 ​​pushes the chuck 5-4 to return the negative pressure bottle 5-1 and the needle 5-3 to their original positions. Finally, the operator rotates the rotating column 4-1 to align the positioning countersink 7 with the pressure column 3-4, and then samples can be taken again.

[0013] After sampling, open the sealed top cover 6, remove the negative pressure bottle 5-1, and finally remove the rubber cap 5-4 to pour the sample into the culture dish.

[0014] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A sampling device for food testing, characterized in that: It includes a connecting handle (1) and a positioning through hole (2) located at the front center of the upper surface of the connecting handle (1). A lifting device (3) is connected to the front center of the upper surface of the connecting handle (1). A movable turntable (4) is inserted at the center of the front edge of the upper surface of the connecting handle (1). Several collecting devices (5) are evenly distributed around the four edges of the upper surface of the movable turntable (4). A sealing cover (6) is connected to the center of the upper surface of the movable turntable (4). Several positioning countersunk holes (7) are evenly distributed around the four edges of the upper surface of the sealing cover (6).

2. The sampling device for food testing according to claim 1, characterized in that: The lifting device (3) includes a vertical plate (3-1), a sliding groove (3-2), a rodless cylinder (3-3), and a pressure column (3-4). The vertical plate (3-1) has a sliding groove (3-2) in the middle of its front surface. The rodless cylinder (3-3) is inserted in the middle of the sliding groove (3-2). The pressure column (3-4) is connected to the middle of the front surface of the rodless cylinder (3-3). The vertical plate (3-1) is connected to the front of the upper surface of the connecting handle (1). The pressure column (3-4) is L-shaped. The lower end of the pressure column (3-4) is matched with the position of the positioning countersunk hole (7).

3. The sampling device for food testing according to claim 1, characterized in that: The movable turntable (4) includes a rotating column (4-1), a socket (4-2), a retaining ring (4-3), and a spring (4-4). Several sockets (4-2) are evenly distributed around the four edges of the upper surface of the rotating column (4-1). A retaining ring (4-3) is inserted into the lower part of the inner side surface of each socket (4-2). A spring (4-4) is connected to the center of the upper surface of each retaining ring (4-3). The rotating column (4-1) is inserted into the front edge of the upper surface of the connecting handle (1). The sealing cover (6) is inserted into the center of the upper surface of the rotating column (4-1). The positions of the sockets (4-2) and the positioning countersunk holes (7) correspond to each other.

4. The sampling device for food testing according to claim 3, characterized in that: The collecting device (5) includes a negative pressure bottle (5-1), a rubber cap (5-2), a needle (5-3), and a chuck (5-4). The rubber cap (5-2) is inserted into the center of the lower surface of the negative pressure bottle (5-1). The needle (5-3) is inserted into the center of the lower surface of the rubber cap (5-2). The chuck (5-4) is inserted above the side surface of the needle (5-3). The upper and lower ends of the needle (5-3) are conical. The negative pressure bottle (5-1) is inserted into the insertion hole (4-2). The chuck (5-4) is clamped on the upper surface of the spring (4-4).

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