Powder food detection sampling device

Abstract

The utility model discloses a powdered food detection sampling device, which relates to the technical field of food detection, and comprises an outer insertion tube, an inner support tube is fixedly connected in the outer insertion tube, a plurality of through grooves are uniformly distributed on the outer wall of the outer insertion tube, a sampling box is arranged in each through groove, and the sampling box is connected with the inner support tube. A rotating shaft is rotationally connected to the inner bottom wall of the outer insertion pipe, the top end of the rotating shaft penetrates through the inner supporting pipe and penetrates through and extends to the position above the outer insertion pipe, and connecting assemblies which are arranged at intervals in the height direction of the inner supporting pipe and drive the sampling box to move out of the through groove are fixedly connected to the interior of the inner supporting pipe. According to the utility model, the connecting component pushes the sampling box through the rotation of the rotating shaft, so that a plurality of samples can be obtained through one-time operation, the sampling efficiency is greatly improved, comprehensive detection is facilitated, the sampling cavity is sealed by the upper sealing plate after sampling is completed, each sampling position is ensured to be independent, the detection accuracy is improved, and the samples are convenient to discharge; the subsequent detection and analysis work is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, in particular to a sampling device for powder food detection. Background Art

[0002] Food safety detection is to detect harmful substances in food according to national standards, mainly the detection of some harmful and toxic indicators, such as heavy metals, aflatoxins, etc. In the production and quality control process of powder food, sampling detection is a crucial link.

[0003] The document with the publication number of CN212206705U discloses a sampler for food detection, which is used to realize the sampling of powdery solid food. It includes: a hand-held rod; sampling grooves, and a plurality of the sampling grooves are arranged on the periphery of the hand-held rod; a connecting rod, and the connecting rod is arranged between the sampling groove and the hand-held rod. The sampler for food detection provided by this utility model can realize sampling at one time, and has a wide sampling range during sampling, thereby ensuring the detection accuracy after sampling.

[0004] When the above-mentioned prior art is actually used, it is necessary for the operator to insert the sampler into the powdery solid food. However, during the process of the sampling device entering and taking out to the target position, the powdery food on the shallow layer will enter the sampler. Therefore, the sample taken out is not completely the sample at the target position, and the independence of the sample cannot be ensured, resulting in inaccurate detection results of the sample at the target position. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a sampling device for powder food detection.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A sampling device for powder food detection includes an outer insertion tube, an inner support tube is fixedly connected inside the outer insertion tube, a plurality of uniformly distributed through grooves are formed on the outer wall of the outer insertion tube, a sampling box is arranged in each through groove, a rotating shaft is rotatably connected to the inner bottom wall of the outer insertion tube, the top end of the rotating shaft passes through the inner support tube and penetrates and extends above the outer insertion tube, and a connecting component is fixedly connected inside the inner support tube and is arranged at intervals along its height to drive the sampling box to move out of the through groove.

[0008] Preferably, each connecting component includes a support plate fixedly connected to the inner wall of the inner support tube, a shaft pin is rotatably connected between two adjacent support plates, a worm gear is fixedly sleeved on the outer wall of the shaft pin, and a worm is fixedly arranged on the outer wall of the rotating shaft at intervals along its axial direction and meshes with the corresponding worm gear.

[0009] Preferably, a chute is formed in the support plate, a sliding rod is slidably arranged between two adjacent chutes, a connecting rod is fixedly sleeved on the outer wall of the pin, a push-pull rod is hingedly installed on the outer wall of the sliding rod, one end of the connecting rod far away from the pin is hinged to one end of the push-pull rod far away from the sliding rod, and an extension rod is fixedly connected to the outer wall of the sliding rod.

[0010] Preferably, a sampling cavity with an upward opening is formed in the sampling box, a lower sealing plate is hingedly installed at the bottom of the sampling box, the bottom of the lower sealing plate abuts against the inner wall of the through groove, one end of the extension rod far away from the sliding rod penetrates through the inner support tube and is connected to the sampling box, and the moving distance of the extension rod is greater than the length of the sampling box.

[0011] Preferably, a plurality of upper sealing plates are fixedly connected between the inner wall of the outer insertion tube and the outer wall of the inner support tube. When the sampling box is located in the through groove, the upper sealing plates block the upper part of the sampling cavity.

[0012] Preferably, a marking rod is fixedly connected to one of the extension rods at the topmost part. One end of the marking rod far away from the extension rod sequentially penetrates through the inner support tube and the outer insertion tube and extends to the outside of the outer insertion tube, and a scale plate corresponding to the marking rod is fixedly connected to the outer wall of the outer insertion tube.

[0013] Preferably, two scales marked as "A" and "B" are arranged on the scale plate. When the marking rod moves to the A mark, the sampling cavity moves out of the through groove and the lower sealing plate does not move out of the through groove. When the marking rod moves to the B mark, both the sampling cavity and the lower sealing plate move out of the through groove.

[0014] Preferably, a hand crank is fixedly connected to the top end of the rotating shaft, and the bottom end of the outer insertion tube is tapered.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] 1. In the present utility model, the worm is driven by the hand crank to make the connecting component push the sampling box, so that the sampling box can flexibly move to different depths and sample at different positions, and multiple samples can be obtained in one operation, greatly improving the sampling efficiency and facilitating comprehensive detection.

[0017] 2. In the present utility model, sampling is carried out according to the position where the sampling box is controlled to move out of the through groove. After sampling, the upper sealing plate can seal the sampling cavity to prevent powder food at other positions from entering when the outer insertion tube is taken out, ensuring the independence of the detection at each sampling position and improving the accuracy of the detection result.

[0018] 3. In the present utility model, after sampling is completed, by rotating the hand crank and cooperating with the marking rod and the scale plate, the lower sealing plate below the sampling box is moved out of the through groove. After the lower sealing plate loses the restriction, it will automatically open, enabling the sample in the sampling cavity to be smoothly discharged, facilitating the user's subsequent detection and analysis work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a schematic three-dimensional structure diagram of a powder food detection sampling device proposed by the present utility model;

[0020] Figure 2 FIG. 10 is a schematic partial cross-sectional three-dimensional structure diagram of a powder food detection sampling device proposed by the present utility model;

[0021] Figure 3 FIG. 14 is a schematic enlarged structure diagram of part A in a powder food detection sampling device proposed by the present utility model; Figure 2 in the powder food detection sampling device proposed by the present utility model;

[0022] Figure 4 FIG. 20 is a schematic structure diagram of a connection component of a powder food detection sampling device proposed by the present utility model;

[0023] Figure 5 FIG. 24 is a schematic enlarged structure diagram of part B in a powder food detection sampling device proposed by the present utility model; Figure 4 in the powder food detection sampling device proposed by the present utility model;

[0024] Figure 6 FIG. 30 is a schematic cross-sectional structure diagram of a sampling box of a powder food detection sampling device proposed by the present utility model.

[0025] Legend: 1. Outer insertion tube; 2. Inner support tube; 3. Through groove; 4. Sampling box; 41. Sampling cavity; 42. Lower sealing plate; 5. Rotating shaft; 51. Worm; 52. Hand crank; 6. Connection component; 61. Support plate; 62. Axle pin; 63. Worm gear; 64. Chute; 65. Slide bar; 66. Connecting rod; 67. Push-pull rod; 68. Extension rod; 69. Marking rod; 7. Scale plate; 8. Upper sealing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0027] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0028] AsFigures 1-6 As shown in the figure, the utility model provides a powder food detection sampling device, which includes an outer insertion tube 1. An inner support tube 2 is fixedly connected inside the outer insertion tube 1. A plurality of uniformly distributed through slots 3 are formed on the outer wall of the outer insertion tube 1. A sampling box 4 is arranged in each through slot 3. A rotating shaft 5 is rotatably connected to the inner bottom wall of the outer insertion tube 1. The top end of the rotating shaft 5 passes through the inner support tube 2 and extends above the outer insertion tube 1. A connecting component 6 is fixedly connected inside the inner support tube 2 and is arranged at intervals along its height to drive the sampling box 4 to move out of the through slot 3. The sampling box 4 and the through slot 3 can be set to multiple rows or a single row according to requirements, and one or several can be set in each row.

[0029] In this embodiment, each connecting component 6 includes a support plate 61 fixedly connected to the inner wall of the inner support tube 2. A shaft pin 62 is rotatably connected between two adjacent support plates 61. A worm gear 63 is fixedly sleeved on the outer wall of the shaft pin 62. A worm 51 is fixedly arranged on the outer wall of the rotating shaft 5 and is arranged at intervals along its axial direction and meshes with the corresponding worm gear 63. A chute 64 is formed on the support plate 61. A sliding rod 65 is slidably arranged between two adjacent chutes 64. A connecting rod 66 is fixedly sleeved on the outer wall of the shaft pin 62. A push-pull rod 67 is hingedly installed on the outer wall of the sliding rod 65. One end of the connecting rod 66 far from the shaft pin 62 and one end of the push-pull rod 67 far from the sliding rod 65 are hinged. An extension rod 68 is fixedly connected to the outer wall of the sliding rod 65. When the rotating shaft 5 rotates, the worm gear 63 is driven to rotate by the worm 51. The worm gear 63 drives the shaft pin 62 to rotate the connecting rod 66 and link with the push-pull rod 67, so that the push-pull rod 67 pushes the sliding rod 65 to slide along the chute 64. The sliding rod 65 drives the extension rod 68 to push and pull the sampling box 4 to achieve sampling.

[0030] In this embodiment, a sampling cavity 41 with an upward opening is formed on the sampling box 4. A lower sealing plate 42 is hingedly installed at the bottom of the sampling box 4. The bottom of the lower sealing plate 42 abuts against the inner wall of the through slot 3. One end of the extension rod 68 far from the sliding rod 65 passes through the inner support tube 2 and is connected to the sampling box 4. The moving distance of the extension rod 68 is greater than the length of the sampling box 4, ensuring that the sampling box 4 can be completely moved out of the through slot 3.

[0031] In this embodiment, a plurality of upper sealing plates 8 are fixedly connected between the inner wall of the outer insertion tube 1 and the outer wall of the inner support tube 2. When the sampling box 4 is located in the through slot 3, the upper sealing plate 8 blocks the upper part of the sampling cavity 41. A marking rod 69 is fixedly connected to one of the extension rods 68 at the top. One end of the marking rod 69 far from the extension rod 68 passes through the inner support tube 2 and the outer insertion tube 1 in sequence and extends to the outside of the outer insertion tube 1. A scale plate 7 corresponding to the marking rod 69 is fixedly connected to the outer wall of the outer insertion tube 1. Through the cooperation of the marking rod 69 and the scale plate 7, the position where the sampling box 4 moves out of the through slot 3 is controlled.

[0032] In this embodiment, there are two scales marked "A" and "B" on the scale plate 7. When the marking rod 69 moves to the A mark, the sampling cavity 41 moves out of the through slot 3 and the lower sealing plate 42 does not move out of the through slot 3. When the marking rod 69 moves to the B mark, both the sampling cavity 41 and the lower sealing plate 42 move out of the through slot 3; when the marking rod 69 moves to the A mark on the scale plate 7, the lower sealing plate 42 closes the lower part of the sampling box 4, and the sampling cavity 41 moves out for sampling. When the marking rod 69 moves to the B mark on the scale plate 7, the lower sealing plate 42 opens the lower part of the sampling box 4, and the sample in the sampling cavity 41 can be discharged for detection. Both sampling and discharging are relatively convenient.

[0033] In this embodiment, a hand crank 52 is fixedly connected to the top end of the rotating shaft 5, and the bottom end of the outer insertion tube 1 is tapered; the hand crank 52 can conveniently control the rotation of the rotating shaft 5, and the tapered bottom end of the outer insertion tube 1 is convenient for inserting into the powdered food, improving the usability.

[0034] Usage method and working principle of this device: When using this device, first, insert the outer insertion tube 1 into the powdered food, and rotate the rotating shaft 5 through the hand crank 52. The rotating shaft 5 can drive the worm 51 to rotate to drive the worm wheel 63 to rotate. The rotation of the worm wheel 63 causes the shaft pin 62 to drive the connecting rod 66 to rotate accordingly. The connecting rod 66, through the hinge with the push-pull rod 67, can cause the push-pull rod 67 to push the sliding rod 65 to move in the sliding groove 64. During the movement of the sliding rod 65, the sampling box 4 is pushed out of the through slot 3 and into the powdered food through the extension rod 68. When the extension rod 68 moves, it also drives the marking rod 69 to move until the marking rod 69 moves to the A mark on the scale line and then stops. At this time, the sampling cavity 41 moves out of the through slot 3 and the lower sealing plate 42 does not move out of the through slot 3. Therefore, the lower part of the sampling box 4 is closed, and the powdered sample can enter the sampling cavity 41. It is possible to sample powdered food at different depths and positions at one time, improving the sampling efficiency. Multiple samples can be obtained with one sampling, which is convenient for comprehensive detection. Subsequently, reverse the rotation of the rotating shaft 5 to retract the sampling box 4 into the through slot 3, and the upper sealing plate 8 closes the sampling cavity 41, keeping the sample of the powdered food in the sampling cavity 41 in a closed state. During the process of removing the outer insertion tube 1, it can prevent the powdered food at the positions passed by the sampling part from entering the sampling box 4, avoiding the mixing of powdered food at different positions, thereby ensuring the independence of the detection at each sampling position and making the sampling detection results more accurate and convenient for comparative analysis.

[0035] After sampling is completed and the outer insertion tube 1 is removed, the above operations can be repeated until the marking rod 69 moves to the B mark on the scale line. At this time, both the sampling cavity 41 and the lower sealing plate 42 move out of the through slot 3. The lower sealing plate 42 is no longer restricted and opens due to its own gravity, and the sample in the sampling cavity 41 can be discharged, facilitating the removal of the sample.

[0036] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A powder food detection sampling device, characterized in that: The invention comprises an outer insert tube (1), the inner part of which is fixedly connected to an inner support tube (2), the outer wall of which is provided with a plurality of evenly distributed through grooves (3), each of which is provided with a sampling box (4), a rotating shaft (5) is rotatably connected to the inner bottom wall of the outer insert tube (1), the top end of which passes through the inner support tube (2) and extends to the top of the outer insert tube (1), and the inner part of the inner support tube (2) is fixedly connected to a connecting component (6) which is arranged at intervals along its height and drives the sampling box (4) to move out of the through groove (3).

2. A powder food detection sampling device according to claim 1, characterized in that: Each of the connecting components (6) comprises a support plate (61) fixedly connected to the inner wall of the inner support tube (2); an axle pin (62) is rotatably connected between two adjacent support plates (61); a worm gear (63) is fixedly sleeved on the outer wall of the axle pin (62); and a worm (51) is fixedly arranged on the outer wall of the rotating shaft (5) and is spaced apart along its axial direction and meshes with the corresponding worm gear (63).

3. A powder food detection sampling device according to claim 2, characterized in that: The support plate (61) is provided with a slide groove (64), and a slide rod (65) is slidably arranged between two adjacent slide grooves (64). A connecting rod (66) is fixedly sleeved on the outer wall of the axle pin (62), and a push-pull rod (67) is hingedly installed on the outer wall of the slide rod (65). One end of the connecting rod (66) away from the axle pin (62) and one end of the push-pull rod (67) away from the slide rod (65) are hingedly connected, and an extension rod (68) is fixedly connected to the outer wall of the slide rod (65).

4. A powder food detection sampling device according to claim 3, characterized in that: The sampling box (4) is provided with a sampling cavity (41) opening upward, and a lower sealing plate (42) is hingedly installed at the bottom of the sampling box (4), and the bottom of the lower sealing plate (42) abuts against the inner wall of the through groove (3). The end of the extension rod (68) away from the sliding rod (65) passes through the inner support tube (2) and is connected to the sampling box (4), and the moving distance of the extension rod (68) is greater than the length of the sampling box (4).

5. A powder food detection sampling device according to claim 4, characterized in that: A plurality of upper sealing plates (8) are fixedly connected between the inner wall of the outer insert tube (1) and the outer wall of the inner support tube (2); when the sampling box (4) is located in the through groove (3), the upper sealing plates (8) seal the top of the sampling cavity (41).

6. A powder food detection sampling device according to claim 5, characterized in that: A marking rod (69) is fixedly connected to one of the extension rods (68) at the top, and one end of the marking rod (69) away from the extension rod (68) passes through the inner support tube (2) and the outer insert tube (1) in sequence and extends to the outside of the outer insert tube (1), and a scale plate (7) corresponding to the marking rod (69) is fixedly connected to the outer wall of the outer insert tube (1).

7. A powder food detection sampling device according to claim 6, characterized in that: The scale plate (7) is provided with two scales marked "A" and "B". When the marking rod (69) moves to the A mark, the sampling cavity (41) moves out of the through slot (3) and the lower sealing plate (42) does not move out of the through slot (3). When the marking rod (69) moves to the B mark, both the sampling cavity (41) and the lower sealing plate (42) move out of the through slot (3).

8. A powder food detection sampling device according to claim 1, characterized in that: The top end of the rotating shaft (5) is fixedly connected with a hand crank (52), and the bottom end of the external insert tube (1) is configured to be conical.

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