Rapid sampling device for food and drug inspection and detection

Abstract

The utility model provides a quick sampling device for food and drug inspection and detection, which relates to the technical field of food and drug sampling and comprises a charging box, a support frame is fixedly mounted on the outer bottom edge of the charging box, an overflow box is connected to the bottom of the outer side of the charging box, and metering cylinders which are coaxially distributed are arranged at the bottom of the overflow box. The charging box, the overflow box and the metering cylinder are internally communicated, the metering cylinder is arranged, the capacity of a sample entering the metering cylinder can be controlled through ascending of the lower piston, then the upper piston descends to seal a cylinder opening of the metering cylinder, and the selected sample descends and is discharged from the switch valve along with synchronous descending of the upper piston and the lower piston; and the upper piston continuously descends to be attached to the upper surface of the lower piston, and the selected sample is completely extruded and discharged by utilizing the extrusion of the upper piston, so that the actually collected sample is equal to the actually selected sample in size.

Description

TECHNICAL FIELD

[0001] The utility model relates to food and drug sampling technical field especially, relates to a kind of rapid sampling device for food and drug inspection and detection. BACKGROUND

[0002] Food and drug inspection and detection are important links to protect public health and safety, and sampling is required during detection. Therefore, a rapid sampling device for food and drug inspection and detection is disclosed in the prior art, with publication number CN221649961U. When the liquid flowing into the material loading box increases, the overall weight of the material taking box increases, the compression spring moves downward, and the threaded rod is driven to move downward. The magnetic block one tightly adsorbs the magnetic block two, and the discharge port of the material loading box is sealed. When the magnetic block one and the magnetic block two are tightly attached, the flow of liquid is blocked. At this time, the liquid content in the material taking box is the required content. Opening the bottom discharge valve can obtain a quantitative liquid without manually observing the scale line to obtain the liquid, and the efficiency is high.

[0003] However, when the liquid in the material taking box is discharged, a small amount of liquid will adhere to the material taking box, causing the actual liquid discharged from the material taking box to differ from the liquid collected in the material taking box in volume. Therefore, the sample capacity will be affected. SUMMARY

[0004] The utility model aims at solving the problems in the prior art and provides a rapid sampling device for food and drug inspection and detection.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rapid sampling device for food and drug inspection and detection, comprising a material loading box, a support frame is fixedly installed on the outer bottom edge of the material loading box, and an overflow tank is connected to the bottom outside of the material loading box. A measuring cylinder is arranged on the bottom of the overflow tank. The material loading box, overflow tank, and measuring cylinder are in communication. A switch valve is installed on the cylinder wall of the measuring cylinder below the zero scale line. The switch valve is arranged near the bottom of the measuring cylinder. An upper piston and a lower piston are arranged in the measuring cylinder from top to bottom. The upper piston and the lower piston slide independently. The moving route of the upper piston extends into the overflow tank. The thickness of the lower piston is equivalent to the gap between the switch valve and the bottom of the measuring cylinder.

[0006] Preferably, a plurality of first winding devices are rotatably connected to the outer cylinder wall of the measuring cylinder. The plurality of first winding devices are arranged in an annular array around the center axis of the measuring cylinder, and each group of first winding devices includes two inner side wire reels. The two inner side wire reels are arranged above and below along the direction of the center axis of the measuring cylinder. A fixed frame is fixedly installed above each group of first winding devices on the bottom of the overflow tank.

[0007] Preferably, the inner side reel of the upper position is wound with an upper traction line, one end of the upper traction line penetrates through the overflow tank and the fixed frame corresponding to the upper position, one end of the upper traction line is located in the measuring cylinder and penetrates through the upper piston and is fixed with the upper surface of the lower piston.

[0008] Preferably, the inner side reel of the lower position is wound with a lower traction line, one end of the lower traction line penetrates through the bottom edge of the measuring cylinder and is fixed with the bottom edge of the lower piston, and the inner side reel is fixedly installed with a transmission bevel gear ring on the end face of the measuring cylinder.

[0009] Preferably, the outer side reel is rotatably connected to one end of each inner side reel away from the measuring cylinder, and the outer side reel is also fixedly installed with a transmission bevel gear ring on the side facing the measuring cylinder, the outer side reel of the upper position is wound with an upper traction rope, and one end of the upper traction rope penetrates through the overflow tank and the fixed frame corresponding to the upper position and is fixed with the top end of the upper piston.

[0010] Preferably, the outer side reel of the lower position is wound with a lower traction rope, and the lower traction rope penetrates through the bottom of the measuring cylinder and the lower piston and extends upward to be fixed with the bottom end of the upper piston.

[0011] Preferably, the outer side edge of the measuring cylinder is rotatably connected between the two inner side reels of each group of first winding devices with an inner side bevel gear ring meshed with the transmission bevel gear ring on the inner side reel, the outer side edge of the inner side bevel gear ring is rotatably connected with an outer side bevel gear ring meshed with the transmission bevel gear ring on the outer side reel, and the outer side edge of the measuring cylinder is provided with two bevel gears driven by a servo motor and meshed with the inner side bevel gear ring and the outer side bevel gear ring, respectively.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、In the utility model, the capacity of the sample entering the measuring cylinder can be controlled by the rising of the lower piston, then the upper piston is lowered to seal the cylinder port of the measuring cylinder, and the selected sample is discharged from the switch valve by the synchronous descending of the upper piston and the lower piston, and the selected sample is completely extruded and discharged by the continuous descending of the upper piston to adhere to the upper surface of the lower piston, so that the actual collected sample is equal to the actual selected sample.

[0014] 2、In the utility model, the rotation of the two bevel gears can realize the rotation of the corresponding meshed inner side bevel gear ring or outer side bevel gear ring, that is, the corresponding meshed transmission bevel gear ring can drive the rotation of the inner side reel or the outer side reel, and the corresponding lower piston or upper piston can be lifted in the measuring cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1The utility model provides a kind of stereoscopic structure schematic diagram of rapid sampling device for food and drug inspection and detection is proposed;

[0016] Figure 2 A kind of rapid sampling device for food and drug inspection and detection is proposed Figure 1 The schematic diagram of the structure of the bottom view is proposed;

[0017] Figure 3 The schematic diagram of the structure of the bottom view is proposed

[0018] Figure 4 The schematic diagram of the structure of the bottom view is proposed Figure 3 The schematic diagram of the structure of the bottom view is proposed;

[0019] Figure 5 The schematic diagram of the structure of the bottom view is proposed Figure 3 The schematic diagram of the structure of the bottom view is proposed.

[0020] Legend: 1, charging box;2, support frame;3, overflow tank;4, measuring cylinder;5, fixed frame;6, upper piston;7, upper traction rope;8, upper traction line;71, lower traction rope;81, lower traction line;9, lower piston;10, switch valve;11, inner side bevel gear ring;12, outer side bevel gear ring;13, outer side reel;14, inner side reel;15, bevel gear;16, transmission bevel gear ring. Specific embodiments

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0023] As Figures 1-5As shown, a kind of food and drug testing rapid sampling device for testing, including charging box 1, charging box 1 is used to store collection food and drug;Charging box 1 outer bottom edge fixed mounting support frame 2 and charging box 1 outside tank bottom is connected with overflow tank 3, charging box 1 tank bottom is communicated with overflow tank 3 inside by installing switch valve, realize the food and drug in charging box 1 flow into overflow tank 3, and overflow tank 3 is installed in the tank bottom of charging box 1 by screw or flange, facilitate disassembly and assembly when switch valve is closed;Overflow tank 3 tank bottom is provided with coaxial distribution measuring cylinder 4, measuring cylinder 4 is used to collect sample, and the scale on measuring cylinder 4 is used to control the amount selected by personnel, charging box 1, overflow tank 3 and measuring cylinder 4 are internally conductive, switch valve 10 is installed on the zero scale line below the position of measuring cylinder 4 cylinder wall, switch valve 10 is close to the bottom of measuring cylinder 4, upper piston 6 and lower piston 9 are respectively arranged in measuring cylinder 4 from top to bottom, upper piston 6 and lower piston 9 independently slide, the moving route of upper piston 6 extends into overflow tank 3, the thickness of lower piston 9 is equivalent to the gap between switch valve 10 and the bottom of measuring cylinder 4, when using, lower piston 9 moves to the distance from the one end of measuring cylinder 4 cylinder mouth, and the capacity of the space above lower piston 9 in measuring cylinder 4 is obtained by using the scale on the surface of measuring cylinder 4, food and drug in charging box 1 passes through overflow tank 3 and enters measuring cylinder 4, and gathers above lower piston 9, by controlling the lifting of lower piston 9, the sample capacity entering measuring cylinder 4 can be controlled, then upper piston 6 descends and seals measuring cylinder 4 cylinder mouth, then switch valve 10 on measuring cylinder 4 is opened, lower piston 9 and upper piston 6 descend simultaneously, i.e. the selected sample can be realized to descend and flow out through the opened switch valve 10 of measuring cylinder 4, and by continuously descending upper piston 6 to the upper surface of lower piston 9, the selected sample is completely extruded and discharged by using the extrusion of upper piston 6, to ensure that the actual collected sample is equivalent to the actual selected sample amount, then lower piston 9 and upper piston 6 ascend simultaneously until lower piston 9 is above switch valve 10 of measuring cylinder 4, and upper piston 6 ascends to re-enter overflow tank 3, realize the secondary sampling of food and drug in charging box 1.

[0024] In order to drive the lower piston 9 to lift: the outer cylinder wall of the measuring cylinder 4 is rotationally connected with a plurality of groups of first winding devices, the plurality of groups of first winding devices are arranged in an annular array about the center axis of the measuring cylinder 4, and each group of first winding devices includes two inner side winding reels 14, the two inner side winding reels 14 are arranged in an up-down direction along the center axis of the measuring cylinder 4, a fixed frame 5 is fixedly installed above each group of first winding devices, the inner side winding reel 14 at the upper position is wound with an upper traction line 8, one end of the upper traction line 8 penetrates through the overflow tank 3 and the fixed frame 5 at the corresponding upper position, one end of the upper traction line 8 penetrating through the fixed frame 5 is located in the measuring cylinder 4 and penetrates through the upper piston 6 and is fixed to the upper surface of the lower piston 9, the inner side winding reel 14 at the lower position is wound with a lower traction line 81, one end of the lower traction line 81 penetrates through the bottom edge of the measuring cylinder 4 and is fixed to the bottom edge of the lower piston 9, in the present scheme, the part of the upper traction line 8 penetrating through the overflow tank 3 and the upper piston 6 is sealed by packing or other sealing methods, and the part of the lower traction line 81 penetrating through the measuring cylinder 4 is also sealed, in use, the two inner side winding reels 14 of each group of first winding devices rotate simultaneously, and by adjusting the winding directions of the upper traction line 8 and the lower traction line 81, when the two inner side winding reels 14 of each group rotate at the same speed, the upper traction line 8 is released and the lower traction line 81 is wound, so that the lower piston 9 can be lowered in the measuring cylinder 4; conversely, the upper traction line 8 is wound and the lower traction line 81 is released, so that the lower piston 9 can be raised in the measuring cylinder 4.

[0025] In order to drive the upper piston 6 to lift: one end of each inner side winding reel 14 away from the measuring cylinder 4 is rotationally connected with an outer side winding reel 13, the outer side winding reel 13 at the upper position is wound with an upper traction rope 7, one end of the upper traction rope 7 penetrates through the overflow tank 3 and the fixed frame 5 at the corresponding upper position and is fixed to the top end of the upper piston 6, the outer side winding reel 13 at the lower position is wound with a lower traction rope 71, the lower traction rope 71 penetrates through the bottom of the measuring cylinder 4 and the lower piston 9 and extends upward to be fixed to the bottom end of the upper piston 6, and the part of the upper traction rope 7 penetrating through the overflow tank 3 and the part of the lower traction rope 71 penetrating through the measuring cylinder 4 and the lower piston 9 are also sealed, and the sealing method can be packing sealing, the two outer side winding reels 13 at each group of first winding devices rotate at the same speed, the upper traction rope 7 is released and the lower traction rope 71 is wound, so that the upper piston 6 can be lowered in the measuring cylinder 4; conversely, the upper traction rope 7 is wound and the lower traction rope 71 is released, so that the upper piston 6 can be raised in the measuring cylinder 4.

[0026] In order to drive the inner winding reel 14 or the outer winding reel 13 to rotate: the transmission cone gear ring 16 is fixedly installed on the end face of the inner winding reel 14 towards the metering cylinder 4, the transmission cone gear ring 16 is also fixedly installed on the side of the outer winding reel 13 towards the metering cylinder 4, the inner side cone gear ring 11 engaged with the transmission cone gear ring 16 on the inner winding reel 14 is rotatably connected between the two inner winding reels 14 of each group of first winding devices, the outer side cone gear ring 12 engaged with the transmission cone gear ring 16 on the outer winding reel 13 is rotatably connected outside the inner side cone gear ring 11, and the metering cylinder 4 is provided with two bevel gears 15 engaged with the inner side cone gear ring 11 and the outer side cone gear ring 12 respectively and driven by a servo motor, the two bevel gears 15 are driven to rotate by the servo motor installed on the surface of the metering cylinder 4, so that the inner side cone gear ring 11 or the outer side cone gear ring 12 engaged with the two bevel gears 15 can be rotated when the two bevel gears 15 rotate, that is, the transmission cone gear ring 16 engaged with the inner side cone gear ring 11 or the outer side cone gear ring 12 can drive the inner winding reel 14 or the outer winding reel 13 to rotate.

[0027] Working principle, the food and medicine in the charging box 1 enter the overflow box 3 and the metering cylinder 4, the switch valve 10 on the metering cylinder 4 is opened, and the food and medicine entering the metering cylinder 4 can be controlled by the upward movement of the lower piston 9, then the upper piston 6 is lowered to seal the metering cylinder 4, finally the upper piston 6 and the lower piston 9 are lowered at the same time until the sample between the upper piston 6 and the lower piston 9 is lowered to the position of the opened switch valve 10 and is discharged, and the residual sample between the upper piston 6 and the lower piston 9 can be completely extruded and discharged through the switch valve 10 by the continuous downward movement of the upper piston 6, so that the sample in the metering cylinder 4 is completely discharged.

[0028] The wiring diagram of the servo motor in the utility model belongs to the common knowledge in the field, and the working principle is a known technology, and the type is selected according to actual use, so the control mode and wiring arrangement of the servo motor are not explained in detail.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, any skilled person in the art can change or modify the above disclosed technology content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments still belong to the protection scope of the utility model technical scheme.

Claims

1. A rapid sampling device for food and drug testing, comprising a loading tank (1), characterized in that: The bottom edge of the loading box (1) is fixedly installed with a support frame (2) and the bottom of the loading box (1) is connected to an overflow box (3). The bottom of the overflow box (3) is provided with a metering cylinder (4) distributed coaxially. The loading box (1), the overflow box (3) and the metering cylinder (4) are internally connected. The metering cylinder (4) is equipped with a switch valve (10) located below the zero mark on its cylinder wall. The switch valve (10) is located near the bottom of the metering cylinder (4). The metering cylinder (4) is provided with an upper piston (6) and a lower piston (9) from top to bottom. The upper piston (6) and the lower piston (9) slide independently. The movement path of the upper piston (6) extends into the overflow box (3). The thickness of the lower piston (9) is the same as the gap between the switch valve (10) and the bottom of the metering cylinder (4).

2. The rapid sampling device for food and drug testing according to claim 1, characterized in that: The outer wall of the metering cylinder (4) is rotatably connected to several sets of first winding devices. The several sets of first winding devices are arranged in a ring array about the central axis of the metering cylinder (4), and each set of first winding devices includes two inner winding reels (14). The two inner winding reels (14) are distributed up and down along the central axis of the metering cylinder (4). The bottom of the overflow box (3) is fixedly installed with a fixing frame (5) above each set of first winding devices.

3. The rapid sampling device for food and drug testing according to claim 2, characterized in that: An upper traction line (8) is wound inside the inner winding reel (14) at the upper position. One end of the upper traction line (8) passes through the overflow box (3) and the corresponding upper position fixing frame (5). The other end of the upper traction line (8) passing through the fixing frame (5) is located inside the metering cylinder (4) and passes through the upper piston (6) and is fixed to the upper surface of the lower piston (9).

4. The rapid sampling device for food and drug testing according to claim 2, characterized in that: The inner winding reel (14) at the lower position is wound with a lower traction line (81). One end of the lower traction line (81) passes through the bottom edge of the metering cylinder (4) and is fixed to the bottom edge of the lower piston (9). A transmission bevel gear ring (16) is fixedly installed on the end face of the inner winding reel (14) facing the metering cylinder (4).

5. The rapid sampling device for food and drug testing according to claim 2, characterized in that: Each inner winding reel (14) is rotatably connected to an outer winding reel (13) at the end away from the metering cylinder (4). A transmission bevel ring (16) is also fixedly installed on the side of the outer winding reel (13) facing the metering cylinder (4). An upper traction rope (7) is wound inside the outer winding reel (13) at the upper position. One end of the upper traction rope (7) passes through the overflow box (3) and the corresponding upper position fixing frame (5) and is fixed to the top of the upper piston (6).

6. The rapid sampling device for food and drug testing according to claim 5, characterized in that: A lower traction rope (71) is wound inside the outer winding reel (13) at the lower position. The lower traction rope (71) passes through the bottom of the metering cylinder (4) and the lower piston (9) and extends upward to be fixed to the bottom end of the upper piston (6).

7. The rapid sampling device for food and drug testing according to claim 5, characterized in that: The outer side of the metering cylinder (4) is rotatably connected to the inner bevel ring (11) that meshes with the transmission bevel ring (16) on the inner bevel ring (14) between the two inner winding reels (14) of each group of first winding devices. The outer side of the inner bevel ring (11) is rotatably connected to the outer bevel ring (12) that meshes with the transmission bevel ring (16) on the outer winding reel (13). The outer side of the metering cylinder (4) is provided with two bevel gears (15) that are driven by servo motors and mesh with the inner bevel ring (11) and the outer bevel ring (12) respectively.

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