Sampling device capable of keeping appearance state of food

Abstract

The invention belongs to the technical field of food detection, and particularly relates to a sampling device for keeping the appearance state of food, the sampling device comprises a workbench, the upper end of the workbench is fixedly connected with a support, the support is connected with a detection cylinder through a moving mechanism, the detection cylinder is internally provided with a rectangular groove, the inner wall of the rectangular groove is rotatably connected with a double-thread screw, and the double-thread screw is connected with a screw rod. And two nuts are in threaded connection with the double-thread screw. The food detection device is reasonable in structure, food is located in the rectangular partition plate by moving the detection cylinder downwards, and the rotary knob is rotated to drive the rectangular sleeve and the rectangular sliding cylinder to rotate so as to drive the rotating rod and the worm to rotate. The worm is meshed with the worm gear to drive the double-thread screw to rotate, the nuts move oppositely under the guiding effect, the baffle is driven by the connecting rod to close the sampling hole, sample deformation can be avoided, a more reliable sample state can be provided, and the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of food detection, in particular to a sampling device for maintaining the appearance of food. Background Art

[0002] In modern life, food safety is a top priority. Food testing plays an irreplaceable role in ensuring the nutritional and hygienic quality of food and protecting human health. This is especially true for foods requiring appearance inspection, such as soft and sticky foods with a short shelf life, such as bread, pastries, and tofu. These foods require rigorous quality control through standardized sampling and testing to effectively protect consumers' health and ensure they can enjoy these delicious foods with peace of mind.

[0003] Currently, various food sampling devices have been proposed. For example, a patent application with publication number "CN219532569U" discloses a layered sampling device for food testing. A user grasps the operating end of a sampling tube and places it against the surface of the food to be sampled. The food to be sampled is typically soft and sticky foods such as bread, cake, and tofu. The user then pushes the tube toward the interior of the food. During this process, the spiral structure within the tube increases the static friction between the sample and the inner wall of the tube, thereby preventing the sample from slipping out of the tube. Finally, the connector is removed from the tube, separating the two sampling components that make up the tube to obtain the sample. The two sampling components can then be cleaned separately. However, when using a sampling tube with a spiral structure for sampling, the spiral structure can compress the food as the user pushes the tube toward the interior of the food. This compression can alter the original shape of the food sample, causing it to deform. For inspection projects that require testing the appearance characteristics of food, sample deformation will seriously affect the accuracy and reliability of the test results, making it impossible for inspectors to accurately assess the true appearance quality of the food. In addition, the spiral structure inside the sampling tube is prone to leaving some sample after sampling.

[0004] To this end, the present invention provides a sampling device that maintains the appearance of food. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the sampling device for maintaining the appearance of food described in the present invention includes a workbench, the upper end of the workbench is fixedly connected to a bracket, the bracket is connected to a detection cylinder through a movable mechanism, a rectangular groove is provided in the detection cylinder, a double-headed screw is rotatably connected to the inner wall of the rectangular groove, two nuts are threadedly connected to the double-headed screw, the side wall of the nut is fixedly connected to a connecting rod, the end of the connecting rod away from the nut is fixedly connected to a baffle, a rectangular partition is fixedly connected in the rectangular groove, a sampling hole is provided at the lower end of the rectangular partition, the baffle passes through the side wall of the sliding rectangular partition, a guide mechanism for guiding the nut is installed in the rectangular groove, a driving mechanism for driving the double-headed screw is installed in the rectangular groove, the inner wall of the detection cylinder is provided with a soft protective cover, a control panel is provided on the workbench, and an observation window is provided on the side wall of the detection cylinder.

[0007] Preferably, the guide mechanism includes a slider, a sliding groove is provided on the side wall of the rectangular groove, one end of the slider is fixedly mounted on the side wall of the nut, and the other end of the slider slides in the sliding groove.

[0008] Preferably, the driving mechanism includes a worm wheel, a worm and a rotating rod, the worm wheel is fixedly mounted on the double-headed screw, the rotating rod is rotatably mounted on the detection cylinder, the worm is fixedly mounted on the rotating rod, the worm is engaged with the worm wheel, the rotating rod passes through the rotating detection cylinder, and a rotating mechanism for rotating the rotating rod is installed on the bracket.

[0009] Preferably, the rotating mechanism includes a rectangular sleeve, a rectangular slide and a knob, the rectangular slide is fixedly mounted on the rotating rod, the rectangular sleeve is rotatably mounted on the bracket through a bearing, the rectangular slide slides in the rectangular sleeve, and the knob is fixedly mounted on the upper end of the rectangular sleeve.

[0010] Preferably, the side wall of the knob is provided with anti-slip grooves.

[0011] Preferably, a measuring ruler is fixedly connected to the side wall of the bracket, a pointer is fixedly connected to the upper end of the detection cylinder, and the end of the pointer away from the detection cylinder slides against the surface of the measuring ruler.

[0012] Preferably, a detection platform is fixedly connected to the upper end of the workbench, and a plurality of anti-slip strips are provided on the detection platform.

[0013] Preferably, two support columns are fixedly connected to the lower end of the workbench, and a plurality of storage drawers are provided on the support columns.

[0014] Preferably, the moving mechanism comprises an electric telescopic rod, which is fixedly mounted on the inner upper wall of the bracket, and the telescopic end of the electric telescopic rod is fixedly mounted on the upper end of the detection cylinder.

[0015] Preferably, the inner wall of the rectangular partition is made of polytetrafluoroethylene.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The sampling device for maintaining the appearance state of food described in the present invention moves the detection cylinder downward so that the food is in the rectangular partition, and then rotates the knob. The knob drives the rectangular slide to rotate through the rectangular sleeve, and then the rectangular slide drives the rotating rod to rotate, and the rotating rod drives the worm to rotate. The worm engages with the worm gear to rotate the worm gear, and the worm gear drives the double-headed screw to rotate, so that the two nuts move toward each other. The nuts use the connecting rod to drive the two baffles to move toward each other, so that the sampling hole can be closed, and the problem of sample deformation caused by extrusion can be effectively avoided. For inspection items that need to maintain sample integrity, such as appearance inspection, it can provide a more reliable sample state and ensure the accuracy of the inspection results.

[0018] 2. The sampling device for maintaining the appearance of food described in the present invention can remove the sampled food from the rectangular partition by rotating the knob in the opposite direction. Since the inner wall of the rectangular partition is made of polytetrafluoroethylene, which has excellent non-stick properties, the food sample is not easy to adhere to the inner wall of the rectangular partition, which can effectively avoid the residual sample residue, ensure that the sample is completely removed, and ensure the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a perspective view of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the parts including the detection tube, bracket, measuring ruler, pointer, rectangular sleeve and electric telescopic rod of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper end of the detection tube of the present invention;

[0023] Figure 4 It is a schematic diagram of the side cross-sectional structure of the detection tube of the present invention;

[0024] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 6 for Figure 2 Schematic diagram of the local enlarged structure at B in the middle;

[0026] Figure 7 for Figure 3 Schematic diagram of the local enlarged structure at C in the middle;

[0027] Figure 8 for Figure 4 Schematic diagram of the local enlarged structure at point D in the middle.

[0028] In the figure: 1 workbench, 2 support column, 3 storage drawer, 4 inspection table, 5 anti-slip strip, 6 inspection tube, 7 electric telescopic rod, 8 bracket, 9 measuring ruler, 10 pointer, 11 rectangular sleeve, 12 rectangular groove, 13 sampling hole, 14 rotating rod, 15 baffle, 16 knob, 17 bearing, 18 rectangular slide, 19 slider, 20 slide groove, 21 nut, 22 double-start screw, 23 worm, 24 worm gear, 25 connecting rod, 26 rectangular partition, 27 control panel, 28 observation window. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] Specific examples are given below.

[0031] like Figures 1 to 8As shown, a sampling device for maintaining the appearance of food in an embodiment of the present invention includes a workbench 1, a bracket 8 is fixedly connected to the upper end of the workbench 1, and a detection cylinder 6 is connected to the bracket 8 through a moving mechanism. A rectangular groove 12 is provided in the detection cylinder 6, and a double-headed screw 22 is rotatably connected to the inner wall of the rectangular groove 12. Two nuts 21 are threadedly connected to the double-headed screw 22, and a connecting rod 25 is fixedly connected to the side wall of the nut 21. The end of the connecting rod 25 away from the nut 21 is fixedly connected to the baffle 15, and a rectangular partition 26 is fixedly connected in the rectangular groove 12. A sampling hole 13 is provided at the lower end of the rectangular partition 26, and the baffle 15 passes through the side wall of the sliding rectangular partition 26. A guide mechanism for guiding the nut 21 is installed in the rectangular groove 12, and a driving mechanism for driving the double-headed screw 22 is installed in the rectangular groove 12. The inner wall of the detection cylinder 6 is provided with a soft protective cover. It should be noted that the material of the soft protective cover can be selected from food-grade silicone or similar soft, non-toxic and odorless materials. The soft protective cover can gently fit the surface of the food during the downward movement of the detection tube 6, reducing the squeezing and deformation of soft foods. It is particularly suitable for soft foods such as bread and tofu, effectively protecting their appearance integrity. A control panel 28 is provided on the workbench 1, wherein the control panel 28 is used to control the extension and retraction of the electric telescopic rod. An observation window 28 is provided on the side wall of the detection tube 6. During operation, the knob 16 is turned to drive the rectangular sleeve 11 to rotate, causing the connected rectangular slide 18 to rotate, and then driving the rotating rod 14 to rotate. The worm 23 on the rotating rod 14 engages with the worm gear 24, driving the double-headed screw 22 to rotate. Under the action of the guide mechanism, the two threaded nuts 21 move toward each other. When the nuts 21 move, the two baffles 15 are driven to move toward each other through the connecting rod 25, closing the sampling hole 13 and achieving complete closure of the food sample. Among them, the connecting rod 25 is L-shaped, so that when the nut 21 drives the baffle 15 to move through the connecting rod 25, the connecting rod 25 can avoid contact with the rectangular partition 26. The L-shaped design can expand the moving distance of the baffle 15 and avoid being blocked by the rectangular partition 26.

[0032] like Figure 3 and Figure 7 As shown, the guide mechanism includes a slider 19. A slide groove 20 is formed in the side wall of the rectangular groove 12. One end of the slider 19 is fixedly mounted on the side wall of the nut 21, and the other end of the slider 19 slides in the slide groove 20. This structure ensures that the nut 19 moves linearly, thereby ensuring that the baffle 15 reliably closes or opens the sampling hole 13, improving the stability of the device and sampling accuracy, and avoiding loose sealing or difficulty in sample removal due to rotation of the nut 21.

[0033] like Figure 4 and Figure 8As shown, the drive mechanism includes a worm wheel 24, a worm 23, and a rotating rod 14. The worm wheel 24 is fixedly mounted on the double-headed screw 22, and the rotating rod 14 is rotatably mounted on the detection tube 6. The worm 23 is fixedly mounted on the rotating rod 14, and the worm 23 is engaged with the worm wheel 24. The rotating rod 14 passes through the rotating detection tube 6, and a rotating mechanism for rotating the rotating rod 14 is installed on the bracket 8. During operation, the rotation of the rectangular slide 18 further drives the rotating rod 14 to rotate, and the worm 23 on the rotating rod 14 is engaged with the worm wheel 24, so that the worm wheel 24 drives the double-headed screw 22 to rotate. It should be noted that the worm 23 is located above the connecting rod 25, so as to avoid the worm 23 being blocked by the connecting rod 25, while also ensuring that the connecting rod 25 can smoothly drive the baffle 15 to move.

[0034] like Figure 2 and Figure 5 As shown, the rotating mechanism includes a rectangular sleeve 11, a rectangular slide 18 and a knob 16. The rectangular slide 18 is fixedly mounted on the rotating rod 14. The rectangular sleeve 11 is rotatably mounted on the bracket 8 through a bearing 17. The rectangular slide 18 slides in the rectangular sleeve 11. The knob 16 is fixedly mounted on the upper end of the rectangular sleeve 11. During operation, the electric push rod 7 is started to drive the detection cylinder 6 to move slowly downward. During this process, the rectangular sleeve 18 slides smoothly in the rectangular slide 11. It should be noted that when the knob 16 is rotated, since the rectangular sleeve 18 and the rectangular slide 11 both have a rectangular appearance, the side wall of the rectangular slide 11 can be used to drive the rectangular sleeve 18 to rotate, and the rectangular sleeve 18 can also move smoothly in the rectangular slide 11.

[0035] like Figure 5 As shown, the side wall of the knob 16 is provided with anti-skid grooves. Through the above structure, the anti-skid grooves on the knob 16 increase the friction between the operator's fingers and the knob, preventing slipping during the rotation process, ensuring smooth operation, especially in a humid or greasy environment, and still allowing stable sampling operations.

[0036] like Figure 1 and Figure 2 As shown, a measuring ruler 9 is fixedly connected to the side wall of the bracket 8, and a pointer 10 is fixedly connected to the upper end of the detection cylinder 6. The end of the pointer 10, which is away from the detection cylinder 6, slides against the surface of the measuring ruler 9. Through this structure, the arrangement of the measuring ruler 9 and the pointer 10 provides an intuitive visual reference for the movement of the detection cylinder 6, facilitating the operator's control of the position of the detection cylinder 6 and improving the accuracy of the sampling depth, which is of great guiding significance for sampling foods of varying thicknesses.

[0037] like Figure 1As shown, a test platform 4 is fixedly connected to the upper end of the workbench 1, and a number of anti-slip strips 5 are provided on the test platform 4. Through the above structure, the test platform 4 and anti-slip strips 5 on the workbench 1 provide stable support and anti-slip function for the device, ensuring the stability of the device during the sampling process, preventing sampling failure or sample contamination due to food shaking, and providing a good working environment for the operator.

[0038] like Figure 1 As shown, two support columns 2 are fixedly connected to the lower end of the workbench 1, and a number of storage drawers 3 are provided on the support columns 2. Through the above structure, the design of the support columns 2 and storage drawers 3 not only enhances the overall structural strength of the device, but also provides convenient storage space for tools and samples during the sampling process, keeps the work surface clean, and improves work efficiency and operational convenience.

[0039] like Figure 1 and Figure 2 As shown, the moving mechanism includes an electric telescopic rod 7, which is fixedly mounted on the inner upper wall of a bracket 8. The telescopic end of the electric telescopic rod 7 is fixedly mounted on the upper end of a detection tube 6. During operation, the electric push rod 7 is activated, driving the detection tube 6 to slowly move downward. This results in a high degree of automation for the device, reducing manual operation errors and labor intensity, and improving sampling efficiency and accuracy.

[0040] like Figure 3 As shown, the inner wall of the rectangular partition 26 is made of polytetrafluoroethylene. It should be noted that polytetrafluoroethylene has excellent non-stick properties and is easy to clean. It can effectively prevent food sample residue from remaining on the inner wall of the partition 26, ensuring complete sample removal, facilitating cleaning and maintenance, extending the service life of the device, and ensuring the accuracy of the next sampling.

[0041] Working principle: First, gently place the food to be inspected on the upper end of the inspection table 4 to ensure that the food is stable and in the right position. Then, start the electric push rod 7 to drive the inspection cylinder 6 to move slowly downward. During this process, the rectangular sliding sleeve 18 slides smoothly in the rectangular sliding cylinder 11. Secondly, the soft protective sleeve in the inspection cylinder 6 gently contacts the surface of the food to avoid squeezing damage to it. As the inspection cylinder 6 descends, the food to be sampled is gradually placed in the rectangular partition 26. The operator needs to pay close attention and stop the electric push rod 7 in time when the food reaches the predetermined sampling height to complete the positioning of the sampling height.

[0042] To ensure the integrity and sealing of the sample, the sampling hole 13 is then sealed. Knob 16 is turned, causing the rectangular sleeve 11 to rotate. This rotation of the rectangular sleeve 11 is connected to the rectangular slide 18, causing it to rotate. The rotation of the rectangular slide 18 further causes the rotating rod 14 to rotate. The worm 23 on the rotating rod 14 engages with the worm gear 24, causing the worm gear 24 to rotate the double-headed screw 22. Under the rotation of the double-headed screw 22, the two threaded nuts 21 begin to move toward each other under the guidance of a guide mechanism. The guide mechanism consists of a slider 19 and a slide 20. The slider 19 is fixed to the nut 21 and slides smoothly within the slide 20, ensuring that the nut 21 moves in a straight line. As the nut 21 moves, the two baffles 15 are driven toward each other via the connecting rod 25, gradually closing the sampling hole 13. Ultimately, the food sample is completely enclosed within the rectangular partition 26. This process not only ensures the integrity of the samples, but also effectively prevents unnecessary contact between the samples and the external environment, reduces the risk of contamination, and lays a solid foundation for subsequent food testing work.

[0043] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for maintaining the appearance of food, characterized by: The invention comprises a workbench (1), wherein the upper end of the workbench (1) is fixedly connected to a bracket (8), the bracket (8) is connected to a detection cylinder (6) via a moving mechanism, a rectangular groove (12) is provided in the detection cylinder (6), a double-headed screw (22) is rotatably connected to the inner wall of the rectangular groove (12), two nuts (21) are threadedly connected to the double-headed screw (22), a connecting rod (25) is fixedly connected to the side wall of the nut (21), and a baffle (15) is fixedly connected to the end of the connecting rod (25) away from the nut (21), and the rectangular groove ( A rectangular partition (26) is fixedly connected to the inside of the rectangular partition (12), a sampling hole (13) is opened at the lower end of the rectangular partition (26), the baffle (15) passes through the side wall of the sliding rectangular partition (26), a guide mechanism for guiding the nut (21) is installed in the rectangular groove (12), a driving mechanism for driving the double-headed screw (22) is installed in the rectangular groove (12), a soft protective cover is provided on the inner wall of the detection cylinder (6), a control panel (28) is provided on the workbench (1), and an observation window (28) is provided on the side wall of the detection cylinder (6).

2. A sampling device for maintaining the appearance of food according to claim 1, characterized in that: The guide mechanism includes a slider (19), a slide groove (20) is provided on the side wall of the rectangular groove (12), one end of the slider (19) is fixedly mounted on the side wall of the nut (21), and the other end of the slider (19) slides in the slide groove (20).

3. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: The driving mechanism comprises a worm wheel (24), a worm (23) and a rotating rod (14); the worm wheel (24) is fixedly mounted on the double-headed screw (22); the rotating rod (14) is rotatably mounted on the detection cylinder (6); the worm (23) is fixedly mounted on the rotating rod (14); the worm (23) is meshed with the worm wheel (24); the rotating rod (14) penetrates and rotates the detection cylinder (6); and a rotating mechanism for rotating the rotating rod (14) is mounted on the bracket (8).

4. A sampling device for maintaining the appearance of food according to claim 3, characterized in that: The rotating mechanism comprises a rectangular sleeve (11), a rectangular slide (18) and a knob (16); the rectangular slide (18) is fixedly mounted on the rotating rod (14); the rectangular sleeve (11) is rotatably mounted on the bracket (8) via a bearing (17); the rectangular slide (18) slides in the rectangular sleeve (11); and the knob (16) is fixedly mounted on the upper end of the rectangular sleeve (11).

5. The sampling device for maintaining the appearance of food according to claim 4, characterized in that: The side wall of the knob (16) is provided with anti-slip grooves.

6. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: A measuring ruler (9) is fixedly connected to the side wall of the bracket (8), and a pointer (10) is fixedly connected to the upper end of the detection cylinder (6). The end of the pointer (10) away from the detection cylinder (6) slides against the surface of the measuring ruler (9).

7. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: The upper end of the workbench (1) is fixedly connected to a testing platform (4), and a plurality of anti-slip strips (5) are provided on the testing platform (4).

8. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: Two support columns (2) are fixedly connected to the lower end of the workbench (1), and a plurality of storage drawers (3) are provided on the support columns (2).

9. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: The moving mechanism comprises an electric telescopic rod (7), the electric telescopic rod (7) is fixedly mounted on the inner upper wall of the bracket (8), and the telescopic end of the electric telescopic rod (7) is fixedly mounted on the upper end of the detection cylinder (6).

10. The sampling device for maintaining the appearance of food according to claim 1, characterized in that: The inner wall of the rectangular partition (26) is made of polytetrafluoroethylene.

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