Spotting assembly for contraband sampling test strips

Abstract

The utility model provides a kind of for contraband sampling test paper's point sample subassembly, it is related to test paper point sample device technical field, including workbench;Point sample device is movably connected with workbench;Rotary table is rotationally arranged in the top surface of workbench, rotary table is provided with multiple work positions spaced apart in the circumference, work position is suitable for placing test paper, point sample device moves to carry out point sample to the test paper of work position located below itself;Pressing plate is rotatably connected with rotary table, and pressing plate is structured as multiple corresponding multiple work positions, and pressing plate rotates and cooperates with workbench to press test paper tightly.According to the point sample subassembly of the utility model, through multiple work position design on rotary table, point sample subassembly can continuously, efficiently carry out point sample to multiple test papers, and the design of pressing plate ensures the stability of test paper in conveying process and point sample process, avoids the problem of inaccurate point sample caused by test paper movement or shaking, ensures the quality and consistency of point sample, improves the accuracy of subsequent detection.

Description

Technical Field

[0001] This utility model relates to the technical field of test strip spotting devices, and more specifically, to a spotting component for test strips used for sampling contraband. Background Technology

[0002] In the field of contraband (trace explosives) detection, sampling test strips, as a convenient and efficient detection tool, are widely used in security checks at airports, train stations, and important event venues. Sampling test strips adsorb explosive particles or vapors from the environment, and then use specific detection methods to determine the presence of an explosive threat. The sampling operation, as a crucial step in the preparation of the sampling test strip, directly affects the reliability of subsequent detection results in terms of its accuracy, efficiency, and stability.

[0003] In the prior art, in order to facilitate the sampling process, sampling devices have appeared on the market. However, existing sampling devices cannot effectively fix the test strip during the transmission, causing the test strip to shift position, which affects the subsequent sampling process. Utility Model Content

[0004] The purpose of this invention is to provide a sampling component for a contraband sampling test strip, thereby improving the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0005] This application provides a sampling assembly for a contraband sampling test strip, comprising: a workbench; a sampling device movably connected to the workbench; a rotating platform rotatably disposed on the top surface of the workbench, the rotating platform having a plurality of working positions spaced apart in the circumferential direction, the working positions being suitable for placing test strips, the sampling device being movable to sample the test strips located at the working positions below it; and a pressure plate rotatably connected to the rotating platform, the pressure plate being constructed in a plurality of configurations corresponding to the plurality of working positions, the pressure plate rotating and cooperating with the workbench to press the test strips firmly.

[0006] According to some embodiments of the present invention, a lifting mechanism is also included, which is connected to the worktable. The lifting mechanism is provided with a lifting part, which moves in the height direction to drive the pressure plate located above it to rotate.

[0007] According to some embodiments of the present invention, the lifting mechanism is configured as two, and the worktable is provided with paper feeding positions and paper receiving positions spaced apart in the circumferential direction, with the two lifting mechanisms respectively located at the paper feeding positions and the paper receiving positions.

[0008] According to some embodiments of the present invention, the lifting mechanism includes a cylinder having a piston rod adapted to move in the height direction, a top rod being provided at the top of the piston rod, the top rod being configured as the lifting part, and the top rod moving and cooperating with the pressure plate to drive the pressure plate to rotate.

[0009] According to some embodiments of this utility model, a rotating rod is provided on the rotating platform, and the pressure plate is rotatably connected to the rotating rod through a connecting lug. A torsion spring is sleeved on the outer periphery of the rotating rod, one end of the torsion spring cooperates with the rotating platform, and the other end of the torsion spring cooperates with the pressure plate.

[0010] According to some embodiments of the present invention, the pressure plate protrudes radially from the rotating table, and the portion of the pressure plate protruding from the rotating table is rotatably provided with rollers, the rollers being adapted to cooperate with the top rod.

[0011] According to some embodiments of the present invention, the sampling device includes a mounting plate, which is movably connected to the worktable. A syringe and a sampling needle are respectively provided at the top and bottom of one side of the mounting plate. The syringe and the sampling needle are connected through a flexible tube. The mounting plate moves in the height direction to drive the sampling needle to sample the test strip.

[0012] According to some embodiments of the present invention, the working position includes a plurality of placement positions spaced radially apart, and the mounting plate moves in both the horizontal and vertical directions to spot test strips on the plurality of placement positions.

[0013] According to some embodiments of the present invention, a solution tank is also provided on the workbench, and the mounting plate moves in the horizontal direction and has a first position and a second position. In the first position, the spotting needle is directly opposite the solution tank, and in the second position, the spotting needle is directly opposite one of the working positions.

[0014] According to some embodiments of the present invention, the workbench is rotatably connected to a cover plate, which rotates to selectively open or close the solution tank.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a multi-station design on a rotating platform, allowing the sampling assembly to continuously and efficiently sample multiple test strips without frequent replacement of test strips or adjustment of the sampling device position, thus improving sampling efficiency. Furthermore, the pressure plate design ensures the stability of the test strips during transport and sampling, avoiding inaccurate sampling caused by test strip movement or shaking, guaranteeing sampling quality and consistency, and improving the accuracy of subsequent testing.

[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the sampling component of this utility model;

[0020] Figure 2 A schematic diagram showing the lifting mechanism provided for the sampling component of this utility model;

[0021] Figure 3 This is a schematic diagram showing the cooperation between the worktable and the rotary table of this utility model;

[0022] Figure 4 This is a partial enlarged view of the rotating table of this utility model.

[0023] Marked in the image:

[0024] 10. Workbench; 20. Sampling device; 21. Mounting plate; 22. Syringe; 23. Sampling needle; 24. Tube; 30. Rotating table; 31. Placement position; 40. Pressure plate; 41. Roller; 50. Lifting mechanism; 51. Cylinder; 52. Push rod; 61. Solution tank; 62. Cover plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-4 As shown, this embodiment provides a sampling assembly for a contraband sampling test strip, including: a workbench 10, a sampling device 20, a rotating table 30, and a pressure plate 40. The sampling device 20 is movably connected to the workbench 10. The rotating table 30 is rotatably disposed on the top surface of the workbench 10. The rotating table 30 is provided with multiple working positions spaced apart in the circumferential direction. The working positions are suitable for placing test strips. The sampling device 20 moves to sample the test strip located at the working position below it. The pressure plate 40 is rotatably connected to the rotating table 30. The pressure plate 40 is constructed to correspond to multiple working positions. The pressure plate 40 rotates and cooperates with the workbench 10 to press the test strips tightly.

[0028] In some embodiments, the sampling device 20 is movably connected to the worktable 10. The sampling device 20 can move relative to the worktable 10 in the height direction to sample the test strips conveyed to the work positions below it. The rotating table 30 is rotatably disposed on the top surface of the worktable 10. The rotating table 30 is provided with a plurality of work positions spaced apart in the circumferential direction. The plurality of work positions are respectively used to place test strips. The rotating table 30 rotates to convey the plurality of work positions to the area below the sampling device 20 in sequence. The pressure plate 40 is rotatably connected to the rotating table 30 and is configured to correspond to the plurality of work positions. The pressure plate 40 rotates and cooperates with the worktable 10 to press the test strips placed on the work positions.

[0029] Understandably, the rotating platform 30 can rotate relative to the worktable 10, thereby allowing the rotating platform 30 to rotate relative to the sampling device 20. This enables multiple working positions on the rotating platform 30 to move sequentially below the sampling device 20. When a working position moves below the sampling device 20, the sampling device 20 can move to perform sampling on the test strip at that working position. Thus, the sampling assembly can continuously and efficiently sample multiple test strips, improving sampling efficiency.

[0030] The pressure plate 40 is rotatably connected to the rotating table 30. When the test strip is placed in the working position, the pressure plate 40 can rotate and cooperate with the working table 10 to press the test strip firmly in the working position, so as to ensure that the test strip will not move or shake during the transmission and dispensing process, thereby ensuring the accuracy and reliability of the dispensing.

[0031] According to the sampling assembly for contraband sampling test strips of this utility model, the sampling assembly can continuously and efficiently sample multiple test strips through the design of multiple working positions on the rotating table 30, without the need to frequently change test strips or adjust the position of the sampling device 20, thereby improving the sampling efficiency. Moreover, the design of the pressure plate 40 ensures the stability of the test strips during the transmission and sampling process, avoiding the problem of inaccurate sampling caused by test strip movement or shaking, ensuring the quality and consistency of sampling, and improving the accuracy of subsequent testing.

[0032] According to some embodiments of the present invention, the sampling assembly further includes a lifting mechanism 50, which is connected to the worktable 10. The lifting mechanism 50 is provided with a lifting part, which moves in the height direction to drive the pressure plate 40 located above it to rotate.

[0033] Understandably, when the rotating table 30 drives the working position to rotate and aligns it with the lifting mechanism 50, the lifting mechanism 50 operates to move the lifting part towards the pressure plate 40 in the height direction and drive the pressure plate 40 to rotate. At this time, the working position is fully open, and the test strip can be placed in the working position. As the rotating table 30 rotates, the test strip on the working position can be conveyed. When the working position with the test strip is placed rotates to below the sampling device 20, the sampling device 20 moves towards the test strip in the height direction to perform sampling on the test strip. The sampled test strip continues to be conveyed until it is conveyed again to align with the lifting mechanism 50. At this time, the lifting mechanism 50 operates to drive the pressure plate 40 to rotate, and the pressure plate 40 fully opens the working position to facilitate the removal of the test strip. This process is repeated to achieve continuous transport and sampling of the test strip, thereby improving the sampling efficiency of the test strip.

[0034] It is worth mentioning that when it is necessary to place or remove the test strip, the lifting part of the lifting mechanism 50 moves toward the pressure plate 40, driving the pressure plate 40 to rotate, thereby opening the working position and facilitating the placement or removal of the test strip. After the test strip is placed, the lifting mechanism 50 resets, and the pressure plate 40, under its own weight or the action of a spring or other reset mechanism, presses the test strip again to ensure the stability of the test strip during the transmission process.

[0035] According to some embodiments of the present invention, the lifting mechanism 50 is constructed as two, and the worktable 10 is provided with a paper feeding position and a paper receiving position spaced apart in the circumferential direction. The two lifting mechanisms 50 are respectively located at the paper feeding position and the paper receiving position.

[0036] In some embodiments, both the paper feeding position and the paper receiving position are provided with a lifting mechanism 50. When the working position rotates to be directly opposite the paper feeding position and the paper receiving position, the lifting mechanism 50 works to drive the pressure plate 40 to rotate, thereby fully opening the working position directly opposite the paper feeding position and the paper receiving position, thus facilitating the paper feeding and paper receiving operations.

[0037] According to some embodiments of the present invention, the lifting mechanism 50 includes a cylinder 51, the cylinder 51 having a piston rod adapted to move in the height direction, a top rod 52 provided at the top of the piston rod, the top rod 52 being configured as a lifting part, the top rod 52 moving and cooperating with the pressure plate 40 to drive the pressure plate 40 to rotate.

[0038] In some embodiments, when it is necessary to drive the pressure plate 40 to rotate, the cylinder 51 starts to work. The piston rod of the cylinder 51 moves in the height direction under the action of air pressure. As the piston rod moves, the push rod 52 provided at the top of the piston rod also moves. The direction of movement of the push rod 52 is towards the pressure plate 40. The push rod 52 moves to contact the pressure plate 40 and generates a force to drive the pressure plate 40 to rotate around its connection point with the rotating table 30.

[0039] Understandably, the cylinder 51, as a power source, has the characteristics of simple structure, stable operation and high reliability, which enables the lifting mechanism 50 to maintain stable performance during long-term and high-frequency operation. Moreover, through the precise control of the cylinder 51 and the piston rod, the moving distance and speed of the push rod 52 can be precisely adjusted, thereby precisely controlling the rotation angle and timing of the pressure plate 40.

[0040] According to some embodiments of the present invention, a rotating rod is provided on the rotating table 30, and the pressure plate 40 is rotatably connected to the rotating rod through a connecting lug. A torsion spring is sleeved on the outer periphery of the rotating rod, one end of the torsion spring is engaged with the rotating table 30, and the other end of the torsion spring is engaged with the pressure plate 40.

[0041] In some embodiments, when the push rod 52 of the lifting mechanism 50 moves toward the pressure plate 40, the push rod 52 contacts the pressure plate 40 and generates a force to drive the pressure plate 40 to rotate around the rotating rod. During the rotation of the pressure plate 40, the torsion spring is compressed or stretched, thereby storing elastic potential energy. When the push rod 52 of the lifting mechanism 50 retracts, the torsion spring releases the stored elastic potential energy, applying a torque opposite to the direction of rotation to the pressure plate 40, causing the pressure plate 40 to automatically reset to its initial position and re-press the test paper on the working position.

[0042] Therefore, by setting the torsion spring, the pressure plate 40 can automatically reset after rotating under the action of the lifting mechanism 50, without the need for an additional drive mechanism or manual intervention. Moreover, the reset force provided by the torsion spring ensures that the pressure plate 40 can stably press the test paper on the working position after resetting, preventing the test paper from moving or falling off during the transmission process.

[0043] According to some embodiments of the present invention, the pressure plate 40 protrudes radially from the rotating table 30, and the portion of the pressure plate 40 protruding from the rotating table 30 is rotatably provided with a roller 41, which is adapted to cooperate with the top rod 52.

[0044] In some embodiments, by providing rollers 41, the contact between the push rod 52 and the pressure plate 40 changes from sliding contact to rolling contact, thereby reducing friction and wear and improving the service life and reliability of the pressure plate 40 and the push rod 52.

[0045] It is worth mentioning that rolling contact has less frictional resistance than sliding contact, thus improving the transmission efficiency of the push rod 52 driving the pressure plate 40 to rotate. At the same time, due to the presence of the roller 41, the cooperation between the push rod 52 and the pressure plate 40 is smoother, reducing jamming and vibration, and optimizing the operating experience.

[0046] According to some embodiments of the present invention, the sampling device 20 includes a mounting plate 21, which is movably connected to the workbench 10. A syringe 22 and a sampling needle 23 are respectively provided on the top and bottom of one side of the mounting plate 21. The syringe 22 and the sampling needle 23 are connected through a hose 24. The mounting plate 21 moves in the height direction to drive the sampling needle 23 to sample the test paper.

[0047] The syringe 22 draws and stores the solution required for spotting through the spotting needle 23, which is the component that precisely applies the solution to the test strip. The syringe 22 and the spotting needle 23 are connected by a tubing 24, so that the solution in the syringe 22 can be smoothly delivered to the spotting needle 23 under pressure, providing a stable solution supply for the spotting operation.

[0048] Mounting plate 21 is movably connected to workbench 10. When mounting plate 21 moves in the height direction, it drives the spotting needle 23 on it to move together. When the spotting needle 23 moves down to contact the test paper, the pressure in syringe 22 is controlled to make the solution from syringe 22 through tubing 24 to spotting needle 23, and then added to the surface of test paper from the needle outlet point to complete the spotting operation.

[0049] According to some embodiments of the present invention, the working position includes a plurality of placement positions 31 spaced apart in the radial direction, and the mounting plate 21 moves in the horizontal and vertical directions to spot the test strips on the plurality of placement positions 31.

[0050] In some embodiments, the rotating stage 30 is provided with a plurality of working positions spaced apart in the circumferential direction. Each working position includes a plurality of placement positions 31 in the radial direction of the rotating stage 30, and each placement position 31 is suitable for placing test strips. Thus, the space of the rotating stage 30 can be fully utilized by the above arrangement, so that the rotating stage 30 can hold more test strips and can complete the task of conveying multiple test strips at one time.

[0051] During operation, the rotation of the rotating table 30 can drive the working position to rotate to a position below the sampling device 20. At this time, the sampling device 20 is directly opposite the working position, and the projection of the sampling device 20 in the height direction is located on the line connecting multiple placement positions 31 in the working position (in one working position, the extension line of the line connecting multiple placement positions 31 passes through the center of the rotating table 30). When the sampling device 20 moves in the horizontal direction, it will pass through multiple placement positions 31 in the corresponding working position in sequence. When passing through each placement position 31, the sampling device 20 moves in the height direction to be suitable for sampling the test strip on the corresponding placement position 31.

[0052] According to some embodiments of the present invention, a solution tank 61 is also provided on the workbench 10, and the mounting plate 21 moves in the horizontal direction and has a first position and a second position. In the first position, the spotting needle 23 is directly opposite the solution tank 61, and in the second position, the spotting needle 23 is directly opposite one of the working positions.

[0053] In some embodiments, the movable connection structure between the mounting plate 21 and the worktable 10 allows the mounting plate 21 to move precisely in the horizontal direction, thereby switching between different positions. The mounting plate 21 can be moved to a first position or a second position via a drive device such as a motor. When solution needs to be drawn, the mounting plate 21 moves to the first position, aligning the sampling needle 23 with the solution tank 61, and the solution is drawn by operating the syringe 22. When sample application is required, the mounting plate 21 moves to the second position, aligning the sampling needle 23 with one of the placement positions 31 on the worktable, and the drawn solution is applied to the surface of the test strip.

[0054] Understandably, the solution tank 61 eliminates the need for a complex external solution delivery system for the spotting needle 23, allowing for solution aspiration directly on the workbench 10. This simplifies the structure of the spotting assembly and improves operational convenience. Furthermore, the quick and easy switching between the first and second positions on the mounting plate 21 reduces manual intervention and further enhances spotting efficiency.

[0055] According to some embodiments of the present invention, the workbench 10 is rotatably connected to a cover plate 62, which rotates to selectively open or close the solution tank 61.

[0056] In some embodiments, the cover plate 62 is rotatably connected to the worktable 10, and the cover plate 62 can be rotated to selectively open or close the solution tank 61. That is, when the sample dispensing device 20 is not working, the cover plate 62 can cover the solution tank 61, thereby preventing the sample in the solution tank 61 from evaporating, and at the same time preventing dust and other contaminants from polluting the sample in the solution tank 61.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sampling assembly for a contraband sampling test strip, characterized in that, include: Workbench (10); A sample dispensing device (20) is movably connected to the worktable (10); A rotating table (30) is rotatably disposed on the top surface of the workbench (10). The rotating table (30) is provided with a plurality of working positions spaced apart in the circumferential direction. The working positions are suitable for placing test strips. The sampling device (20) moves to sample the test strips located at the working positions below it. A pressure plate (40) is rotatably connected to the rotating table (30). The pressure plate (40) is configured to correspond to multiple working positions. The pressure plate (40) rotates and cooperates with the working table (10) to press the test paper tightly.

2. The sampling assembly for the contraband sampling test strip according to claim 1, characterized in that, It also includes a lifting mechanism (50) connected to the worktable (10), the lifting mechanism (50) being provided with a lifting part that moves in the height direction to drive the pressure plate (40) located above it to rotate.

3. The sampling assembly for the contraband sampling test strip according to claim 2, characterized in that, The lifting mechanism (50) is configured as two, and the worktable (10) is provided with paper feeding position and paper receiving position spaced apart in the circumferential direction. The two lifting mechanisms (50) are respectively located at the paper feeding position and the paper receiving position.

4. The sampling assembly for the contraband sampling test strip according to claim 3, characterized in that, The lifting mechanism (50) includes a cylinder (51) having a piston rod adapted to move in the height direction, and a top rod (52) is provided on the top of the piston rod. The top rod (52) is configured as the lifting part, and the top rod (52) moves and cooperates with the pressure plate (40) to drive the pressure plate (40) to rotate.

5. The sampling assembly for the contraband sampling test strip according to claim 4, characterized in that, A rotating rod is provided on the rotating platform (30), and the pressure plate (40) is rotatably connected to the rotating rod through a connecting lug. A torsion spring is sleeved on the outer periphery of the rotating rod. One end of the torsion spring cooperates with the rotating platform (30), and the other end of the torsion spring cooperates with the pressure plate (40).

6. The sampling assembly for the contraband sampling test strip according to claim 5, characterized in that, The pressure plate (40) protrudes radially from the rotating table (30), and a roller (41) is rotatably provided on the portion of the pressure plate (40) protruding from the rotating table (30), the roller (41) being adapted to cooperate with the top rod (52).

7. The sampling assembly for the contraband sampling test strip according to claim 1, characterized in that, The sampling device (20) includes a mounting plate (21), which is movably connected to the worktable (10). A syringe (22) and a sampling needle (23) are respectively provided on the top and bottom of one side of the mounting plate (21). The syringe (22) and the sampling needle (23) are connected through a hose (24). The mounting plate (21) moves in the height direction to drive the sampling needle (23) to sample the test paper.

8. The sampling assembly for the contraband sampling test strip according to claim 7, characterized in that, The working position includes a plurality of placement positions (31) spaced radially apart, and the mounting plate (21) moves in both the horizontal and vertical directions to spot test strips on the plurality of placement positions (31).

9. The sampling assembly for the contraband sampling test strip according to claim 8, characterized in that, The workbench (10) is also provided with a solution tank (61). The mounting plate (21) moves in the horizontal direction and has a first position and a second position. In the first position, the spotting needle (23) is directly opposite the solution tank (61). In the second position, the spotting needle (23) is directly opposite one of the work positions.

10. The sampling assembly for the contraband sampling test strip according to claim 9, characterized in that, The workbench (10) is rotatably connected to a cover plate (62), which rotates to selectively open or close the solution tank (61).

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