Sampling device for food inspection and detection

Abstract

The utility model relates to the technical field of food inspection, and discloses a sampling device for food inspection and detection, which comprises a tube body, four sampling boxes are fixedly connected to the outer surface of the tube body, the four sampling boxes are respectively and fixedly connected to the four side surfaces of the tube body, the four sampling boxes are arranged in a step shape, and the sampling boxes are arranged in the tube body. A liquid inlet is formed in the surface of the side, away from the pipe body, of the sampling box, a sealing plug is arranged in the liquid inlet, a worker moves a driving rod up and down to a proper position according to needs of the worker, then movement of a butt joint assembly can be achieved by rotating the driving rod, and rotation of a rotating rod can be achieved through the butt joint assembly; and subsequently, the rotating rod drives the connecting assembly to move, so that the square rod and the sealing plug are driven to move, finally, the liquid inlet is opened, and a worker can conveniently adjust according to actual sampling requirements.

Description

Technical Field

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

[0002] Food safety is directly related to people's health and even their lives. To ensure food safety, national food safety supervision departments conduct random sampling tests on food products circulating in the market from time to time. With current technology, when testing liquid foods such as milk and water, inspectors typically use a syringe to take a sample, then test the sample. Furthermore, to ensure the accuracy of liquid food testing, multiple samplings and tests are often required.

[0003] According to literature review, an existing patent (publication number: CN219777213U) discloses a layered sampling device for food inspection and testing, including a tube, a piston rod, a piston, and a rotating piston component; the piston rod is inserted into the tube, and several pistons are uniformly distributed along the axial direction of the piston rod and fixed on the piston rod; the pistons are movably connected to the inner wall of the tube, and liquid inlet holes are provided between adjacent pistons on the tube wall.

[0004] While the aforementioned existing technologies have improved the convenience of liquid sample extraction to some extent, in practical use, they can only achieve the simultaneous opening of multiple inlet ports. Sometimes, when sampling is not required, multiple sampling is not necessary. However, the device cannot perform individual sampling at any point according to the user's needs, nor can it be adjusted according to the actual sampling quantity requirements, which can easily lead to sample waste. This results in significant limitations and poor flexibility in use. In view of this, we propose a sampling device for food inspection and testing to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sampling device for food inspection and testing, thereby solving the problem mentioned in the background technology that it is impossible to perform individual sampling at any location according to the user's needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for food inspection and testing, comprising a tube body, four sampling boxes fixedly connected to the outer surface of the tube body, the four sampling boxes being fixedly connected to the four sides of the tube body respectively, the four sampling boxes being arranged in a stepped manner, an inlet being provided on the side of the sampling box away from the tube body, a sealing plug being provided inside the inlet, a square rod being fixedly connected to the surface of the sealing plug, a threaded rod being threaded inside the square rod, the threaded rod rotatably penetrating into the interior of the tube body, four rotating rods being rotatably connected inside the tube body, a driving rod being provided inside the tube body, the upper end of the driving rod movably penetrating out of the interior of the tube body, a docking assembly being provided on the surface of the rotating rod, and a connecting assembly being provided inside the tube body.

[0007] Preferably, the docking assembly includes four driven wheels, which are respectively fixedly sleeved on the surfaces of four rotating rods. The surfaces of the driven wheels are fixedly connected with docking teeth, and both ends of the docking teeth are fixedly connected with guide teeth. The surface of the driving rod is provided with a driving wheel, and the surface of the driving wheel is also fixedly connected with docking teeth and guide teeth. The surfaces of the four rotating rods are all fixedly connected with synchronous wheels, and the surfaces of the four synchronous wheels are also fixedly connected with docking teeth and guide teeth.

[0008] Preferably, the connecting assembly includes a connecting block, which is fixedly connected to the inner wall of the pipe body. The threaded rod rotatably penetrates into the interior of the connecting block, and the connecting block is rotatably sleeved on the surface of the rotating rod. A second bevel gear is fixedly connected to one end of the threaded rod located inside the connecting block.

[0009] Preferably, a first bevel gear is fixedly sleeved at one end of the rotating rod located inside the connecting block, and the first bevel gear and the second bevel gear are meshed together.

[0010] Preferably, a fixing ring is fixedly connected to the inner wall of the tube, and a spring is provided inside the fixing ring. One end of the spring is fixedly connected to the inner wall of the fixing ring, and the other end of the spring is fixedly connected to the surface of the rotating rod.

[0011] Preferably, a fixed column is fixedly connected to the bottom wall of the tube, and a movable chamber is formed inside the fixed column. The lower end of the drive rod is movably inserted into the interior of the movable chamber. A circular plate is rotatably connected to one end of the drive rod inside the movable chamber, and a spring is fixedly connected between the circular plate and the bottom wall of the movable chamber.

[0012] Preferably, the surface of the drive rod is provided with a displacement groove, and a displacement block is fixedly connected to the inner wall of the drive wheel, the displacement block being slidably connected inside the displacement groove.

[0013] Preferably, an indicator arrow is fixedly connected to the surface of the tube, and a scale mark is provided on the surface of the drive rod.

[0014] Compared with the prior art, this utility model provides a sampling device for food inspection and testing, which has the following beneficial effects:

[0015] 1. This sampling device for food inspection and testing allows operators to move the drive rod up and down to a suitable position according to their needs. Rotating the drive rod then moves the docking assembly, which in turn rotates the rotating rod. The rotating rod then drives the connecting assembly, causing the square rod and sealing plug to shift, ultimately opening the liquid inlet. This allows operators to easily adjust the device according to actual sampling requirements, greatly improving its flexibility, preventing sample waste, significantly enhancing its practicality, and simplifying operation.

[0016] 2. This sampling device for food inspection and testing, through the setting of the docking component, allows the staff to adjust the drive rod to a suitable position according to the needs, thereby selecting to drive any rotating rod to rotate or to make four rotating rods rotate synchronously, thereby selecting any sampling box for sampling. It has high applicability and is simple to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a sampling device for food inspection and testing according to the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the tube body of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the connecting block of this utility model;

[0021] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0022] Figure 6 This is a cross-sectional structural diagram of the fixing column of this utility model;

[0023] Figure 7 This is a cross-sectional view of the drive wheel of this utility model.

[0024] In the diagram: 1. Tube body; 2. Sampling box; 3. Sealing plug; 4. Square rod; 5. Threaded rod; 6. Drive rod; 7. Rotating rod; 8. Driven wheel; 9. Driving wheel; 10. Connecting assembly; 11. Fixed column; 12. Movable chamber; 13. Circular plate; 14. Spring; 15. Fixed ring; 16. Clock spring; 17. Displacement groove; 18. Displacement block; 19. Indicating arrow; 20. Scale mark; 21. Synchronizing pulley;

[0025] 201. Liquid inlet;

[0026] 801. Connecting teeth; 802. Guiding teeth;

[0027] 1001, Connecting block; 1002, First bevel gear; 1003, Second bevel gear. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-7 This utility model provides a technical solution: a sampling device for food inspection and testing, including a tube body 1. Four sampling boxes 2 for sampling liquid food are fixedly connected to the outer surface of the tube body 1. The four sampling boxes 2 are respectively fixedly connected to the four sides of the tube body 1. The four sampling boxes 2 are arranged in a stepped manner, which facilitates sampling at different depths and achieves the purpose of layered sampling. The side of the sampling box 2 away from the tube body 1 has an inlet 201 for the flow of liquid food. A sealing plug 3 for sealing the inlet 201 is provided inside the inlet 201. A square rod 4 for connecting is fixedly connected to the surface of the sealing plug 3. The movement of the square rod 4 can drive the movement of the sealing plug 3, and finally realize the opening of the inlet 201. The square rod 4 slides through the inside of the tube body 1. The inside of the square rod 4 is threaded with a threaded rod 5 for transmission. The rotation of the threaded rod 5 can drive the square rod 4 to slide under the restriction of the tube body 1 and the sampling boxes 2. The threaded rod 5 rotates through the inside of the tube body 1.

[0030] The tube body 1 has four rotating rods 7 that provide support and transmission. The tube body 1 also has a drive rod 6 inside, with the upper end of the drive rod 6 extending through the tube body 1. The surface of the rotating rod 7 is provided with a docking assembly, and the tube body 1 has a connecting assembly 10 inside. This allows the staff to make adjustments according to the actual sampling needs, greatly improving the flexibility of the device.

[0031] The docking assembly includes four driven wheels 8, which are fixedly mounted on the surfaces of four rotating rods 7. The surfaces of the driven wheels 8 are fixedly connected with docking teeth 801 for docking. Both ends of the docking teeth 801 are fixedly connected with guide teeth 802 for docking. The surface of the drive rod 6 is provided with a drive wheel 9, which is also fixedly connected with docking teeth 801 and guide teeth 802. Lowering the drive rod 6 allows the docking teeth 801 on the surface of the drive wheel 9 to mesh with the docking teeth 801 on the surface of the driven wheels 8. The surfaces of the four rotating rods 7 are all fixedly connected with synchronous wheels 21 for driving the four rotating rods 7 to rotate synchronously. The surfaces of the four synchronous wheels 21 are also fixedly connected with docking teeth 801 and guide teeth 802. When the operator needs to perform multi-layer sampling simultaneously from the four sampling boxes 2, the drive wheel 9 on the surface of the drive rod 6 meshes with the four synchronous wheels 21 below. Subsequently, rotating the drive rod 6 drives the four synchronous wheels 21 to rotate, thereby driving the four rotating rods 7 to rotate synchronously.

[0032] Among them, the driving wheel 9 and four driven wheels 8 are meshed with four synchronous wheels 21, and the four driven wheels 8 are fixedly sleeved on the surface of the four rotating rods 7 in a stepped shape, so that the operator can make the driving wheel 9 mesh at any position as needed. The four synchronous wheels 21 are at the same height.

[0033] The connecting assembly 10 includes a connecting block 1001, which is fixedly connected to the inner wall of the pipe body 1. The threaded rod 5 rotatably penetrates into the interior of the connecting block 1001. The connecting block 1001 is rotatably sleeved on the surface of the rotating rod 7. One end of the threaded rod 5 located inside the connecting block 1001 is fixedly connected to a second bevel gear 1003, which plays a transmission role. The rotation of the second bevel gear 1003 can drive the rotation of the threaded rod 5. One end of the rotating rod 7 located inside the connecting block 1001 is fixedly sleeved with a first bevel gear 1002, which also plays a transmission role. The first bevel gear 1002 and the second bevel gear 1003 are meshed together. The rotation of the rotating rod 7 can drive the rotation of the first bevel gear 1002, and the rotation of the first bevel gear 1002 can drive the rotation of the second bevel gear 1003. Through the setting of the docking assembly, the operator can adjust the drive rod 6 to a suitable position according to the needs.

[0034] A fixed ring 15 is fixedly connected to the inner wall of the tube body 1, which serves as a connection. A spring 16 is provided inside the fixed ring 15 to reset the rotating rod 7. One end of the spring 16 is fixedly connected to the inner wall of the fixed ring 15, and the other end of the spring 16 is fixedly connected to the surface of the rotating rod 7. When the rotating rod 7 rotates, the spring 16 will also deform. After the driving wheel 9 and the driven wheel 8 or the synchronous wheel 21 are separated, the rotating rod 7 is reset by the setting of the spring 16.

[0035] A fixed column 11 is fixedly connected to the bottom wall of the tube body 1. A movable chamber 12 is opened inside the fixed column 11. The lower end of the drive rod 6 is movably inserted into the interior of the movable chamber 12. A circular plate 13 is rotatably connected to one end of the drive rod 6 located inside the movable chamber 12. A spring 14 for resetting the drive rod 6 is fixedly connected between the circular plate 13 and the bottom wall of the movable chamber 12. During the descent of the drive rod 6, the spring 14 is compressed, thereby causing the spring 14 to deform.

[0036] The surface of the drive rod 6 is provided with a displacement groove 17. The inner wall of the drive wheel 9 is fixedly connected with a displacement block 18. The displacement block 18 is slidably connected inside the displacement groove 17. When the guide teeth 802 on the surface of the drive wheel 9 contact with the guide teeth 802 on the surface of the driven wheel 8, the inclined surfaces of the two guide teeth 802 will contact and abut each other, thereby pushing the drive wheel 9 to rotate within a small range. At this time, the displacement block 18 will slide inside the displacement groove 17.

[0037] The width of the displacement groove 17 is greater than the width of the mating teeth 801. Therefore, when the driving wheel 9 mates with the driven wheel 8 or the synchronous wheel 21, the inclined surfaces of the two guide teeth 802 will contact each other, causing the driving wheel 9 to rotate at a certain angle, which makes it easier for the two wheels to mate.

[0038] An indicator arrow 19 is fixedly connected to the surface of the tube body 1, and a scale mark 20 is provided on the surface of the drive rod 6. The cooperation between the indicator arrow 19 and the scale mark 20 makes it easy for the operator to identify which height of the driven wheel 8 is engaged, further improving the practicality of the device.

[0039] Working principle:

[0040] When using this food inspection and testing sampling device, the entire device is inserted into the liquid food to be sampled. When sampling at a specific depth is required, the operator can slide the drive rod 6 to any height as needed. When the guide teeth 802 on the surface of the drive wheel 9 contact the guide teeth 802 on the surface of the driven wheel 8, the inclined surfaces of the two guide teeth 802 will contact and abut against each other, thereby pushing the drive wheel 9 to rotate within a small range. At this time, the displacement block 18 will slide inside the displacement groove 17. Subsequently, by continuing to lower the drive rod 6, the mating teeth 801 on the surface of the drive wheel 9 and the mating teeth 801 on the surface of the driven wheel 8 can be engaged with each other.

[0041] During the descent of the drive rod 6, the spring 14 is compressed, causing the spring 14 to deform so that the drive rod 6 can be reset by the elastic force of the spring 14 itself.

[0042] When the driving wheel 9 on the surface of the drive rod 6 drives the driven wheel 8 on the surface of the rotating rod 7 to rotate, the rotating rod 7 will also rotate synchronously. The rotation of the rotating rod 7 can drive the rotation of the first bevel gear 1002, which in turn drives the rotation of the second bevel gear 1003. The rotation of the second bevel gear 1003 can then drive the rotation of the threaded rod 5. The rotation of the threaded rod 5 can then cause the square rod 4 to slide under the constraint of the tube body 1 and the sampling box 2. Subsequently, the movement of the square rod 4 can drive the movement of the sealing plug 3, ultimately opening the liquid inlet 201. Then, any one of the sampling boxes 2 can be used for liquid sampling.

[0043] When the staff needs to perform multi-layer sampling simultaneously from four sampling boxes 2, the drive wheel 9 on the surface of the drive rod 6 engages with the four synchronous wheels 21 on the lower side. Subsequently, the rotation of the drive rod 6 can drive the four synchronous wheels 21 to rotate, thereby driving the four rotating rods 7 to rotate synchronously.

[0044] When the rotating rod 7 rotates, the spring 16 will also deform. After the driving wheel 9 and the driven wheel 8 or the synchronous wheel 21 separate, the rotating rod 7 will be reset by the spring 16.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for food inspection and testing, comprising a tube body (1), characterized in that: Four sampling boxes (2) are fixedly connected to the outer surface of the tube body (1). The four sampling boxes (2) are fixedly connected to the four sides of the tube body (1). The four sampling boxes (2) are arranged in a stepped manner. An inlet (201) is opened on the side of the sampling box (2) away from the tube body (1). A sealing plug (3) is provided inside the inlet (201). A square rod (4) is fixedly connected to the surface of the sealing plug (3). A threaded rod (5) is threaded inside the square rod (4). The threaded rod (5) rotates through the tube body (1). Four rotating rods (7) are rotatably connected inside the tube body (1). A driving rod (6) is provided inside the tube body (1). The upper end of the driving rod (6) moves through the tube body (1). A docking assembly is provided on the surface of the rotating rod (7). A connecting assembly (10) is provided inside the tube body (1).

2. The sampling device for food inspection and testing according to claim 1, characterized in that: The docking assembly includes four driven wheels (8), which are respectively fixedly sleeved on the surfaces of four rotating rods (7). The surfaces of the driven wheels (8) are fixedly connected with docking teeth (801), and both ends of the docking teeth (801) are fixedly connected with guide teeth (802). The surface of the drive rod (6) is provided with a drive wheel (9), and the surface of the drive wheel (9) is also fixedly connected with docking teeth (801) and guide teeth (802). The surfaces of the four rotating rods (7) are all fixedly connected with synchronous wheels (21), and the surfaces of the four synchronous wheels (21) are also fixedly connected with docking teeth (801) and guide teeth (802).

3. The sampling device for food inspection and testing according to claim 2, characterized in that: The connecting assembly (10) includes a connecting block (1001), which is fixedly connected to the inner wall of the tube body (1). The threaded rod (5) rotates through the interior of the connecting block (1001). The connecting block (1001) is rotatably sleeved on the surface of the rotating rod (7). A second bevel gear (1003) is fixedly connected to one end of the threaded rod (5) located inside the connecting block (1001).

4. A sampling device for food inspection and testing according to claim 3, characterized in that: The rotating rod (7) is fixedly fitted with a first bevel gear (1002) that meshes with the second bevel gear (1003) at one end inside the connecting block (1001).

5. A sampling device for food inspection and testing according to claim 3, characterized in that: A fixing ring (15) is fixedly connected to the inner wall of the tube (1). A spring (16) is provided inside the fixing ring (15). One end of the spring (16) is fixedly connected to the inner wall of the fixing ring (15), and the other end of the spring (16) is fixedly connected to the surface of the rotating rod (7).

6. A sampling device for food inspection and testing according to claim 5, characterized in that: A fixed column (11) is fixedly connected to the bottom wall of the tube (1). A movable chamber (12) is opened inside the fixed column (11). The lower end of the drive rod (6) is movably inserted into the interior of the movable chamber (12). A circular plate (13) is rotatably connected to one end of the drive rod (6) inside the movable chamber (12). A spring (14) is fixedly connected between the circular plate (13) and the bottom wall of the movable chamber (12).

7. A sampling device for food inspection and testing according to claim 6, characterized in that: The surface of the drive rod (6) is provided with a displacement groove (17), and the inner wall of the drive wheel (9) is fixedly connected to a displacement block (18) that is slidably connected inside the displacement groove (17).

8. A sampling device for food inspection and testing according to claim 7, characterized in that: An indicator arrow (19) is fixedly connected to the surface of the tube (1), and a scale mark (20) is provided on the surface of the drive rod (6).

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