Liquid chemical reagent sampler for chemical detection

Abstract

This utility model relates to the field of chemical detection equipment technology, and in particular to a liquid chemical reagent sampler for chemical detection, including a mounting platform. An inner cavity is provided in the center of the mounting platform, and an adjustment component is installed inside the inner cavity. The upper part of the adjustment component penetrates the upper wall of the inner cavity and extends to the upper center of the mounting platform. This liquid chemical reagent sampler for chemical detection utilizes a first motor, a driving gear, and a driven gear to switch the horizontal position of the sampling syringe, and a second motor's threaded rod to drive its vertical movement. The combination of these two mechanisms allows the sampling syringe to move precisely between the solution cylinder and the reaction tube without manual adjustment, reducing operational errors and improving the efficiency and accuracy of sampling and pipetting. Furthermore, a rotating screw allows the first and second limiting clamps to engage and fix solution cylinders of different sizes, ensuring accurate reagent absorption by the sampling syringe and improving the stability and reliability of the device.

Description

Technical Field

[0001] This utility model relates to the field of chemical detection equipment technology, and in particular to a liquid chemical reagent sampler for chemical detection. Background Technology

[0002] In the field of chemical detection, sampling of liquid chemical reagents is a crucial step in experimental analysis. Traditional sampling methods often rely on manual handheld sampling tools, which require manual adjustment of the tool's position to align with the solution and reaction containers. This process is cumbersome and prone to inaccurate sampling due to human error, significantly impacting the accuracy of test results. Furthermore, manual adjustment reduces sampling efficiency, making it difficult to meet the needs of batch testing. In addition, the solution container used to hold the reagent lacks a stable fixing structure during sampling, making it susceptible to displacement due to external impacts or shaking, preventing the sampling tool from accurately entering the container and even causing reagent spillage. This not only wastes reagents but may also compromise experimental safety. Moreover, solution containers of different sizes cannot be stably placed using the same fixing structure, resulting in poor applicability and numerous inconveniences in sampling operations. Therefore, we have introduced a new liquid chemical reagent sampler for chemical detection. Utility Model Content

[0003] The main objective of this invention is to provide a liquid chemical reagent sampler for chemical detection, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A liquid chemical reagent sampler for chemical detection includes a mounting platform. An inner cavity is located in the center of the mounting platform. An adjustment component is located inside the inner cavity. The upper part of the adjustment component penetrates the upper wall of the inner cavity and extends to the upper center of the mounting platform. An extension frame is located on the upper surface of the adjustment component. A through-hole is located on the upper right side of the extension frame. A sampling syringe is detachably mounted inside the through-hole via a fixing clamp. A placement mechanism is located on the upper right side of the mounting platform. A solution cylinder is located in the center of the upper end of the placement mechanism. A placement platform is located on the upper left side of the mounting platform. A test tube rack is located on the upper end of the placement platform. Reaction test tubes are placed on the inner surface of the test tube rack.

[0005] Preferably, the adjustment assembly includes a first motor, the output end of which is fixedly mounted with a drive gear via a rotating rod, the outer surface of which is meshed with a driven gear on the right side, a driving rod is fixedly mounted through the middle of the upper end of the driven gear, a rotating disk is fixedly mounted on the upper end of the driving rod, a mounting frame is fixedly mounted on the middle of the upper end of the rotating disk, a second motor is fixedly mounted on the middle of the upper end of the mounting frame, a threaded rod is fixedly mounted on the output end of the second motor, and an extension frame is movably mounted on the upper part of the outer surface of the threaded rod via a movable block.

[0006] Preferably, the lower end of the rotating disk is movably fitted together with the upper end of the mounting platform, and the lower part of the outer surface of the threaded rod is rotatably connected to the upper end of the rotating disk through a bearing.

[0007] By adopting the above technical solution, it is possible to achieve flexible rotation of the rotating disk relative to the mounting platform, and the bearing can ensure stable rotation of the threaded rod on the rotating disk.

[0008] Preferably, the lower part of the outer surface of the drive rod is rotatably connected to the lower inner wall of the inner cavity groove via a bearing.

[0009] By adopting the above technical solution, the rotational characteristics of the bearing are utilized to enable the drive rod to rotate stably within the inner cavity groove, thereby reducing the frictional resistance between the drive rod and the inner cavity groove.

[0010] Preferably, the sampling syringe and the solution cylinder are positioned vertically corresponding.

[0011] By adopting the above technical solution, it is ensured that the sampling syringe can be accurately aligned with the opening of the solution cylinder during the up-and-down movement.

[0012] Preferably, the placement mechanism includes a placement seat, with extension plates at the middle of the front end and the middle of the rear end of the placement seat. A fixing plate is provided on the upper end of each of the two extension plates away from the placement seat. A screw is threadedly installed at the middle of the front end of the fixing plate at the front end. A rotating handle is provided at the front end of the screw. A first limiting clamp is movably installed on the rear part of the outer surface of the screw via a movable sleeve. A support rod is fixedly installed at the middle of the front end of the fixing plate at the rear end. A second limiting clamp is fixedly installed at the front end of the support rod. A limiting pad is provided at the end of both the first and second limiting clamps near the solution cylinder.

[0013] By adopting the above technical solution: rotating the screw by rotating the handle causes the first limiting clamp to move back and forth along the screw axis, and the fixed second limiting clamp can clamp and fix solution cylinders of different diameters; the limiting pad can increase the friction with the solution cylinder, while avoiding damage to the solution cylinder by rigid contact, so as to achieve stable placement and fixation of solution cylinders of different specifications.

[0014] Preferably, both the first and second limiting clamps have a semi-arc structure, and the inner surface of the limiting pad is tightly fitted to the outer surface of the solution cylinder.

[0015] By adopting the above technical solution, the semi-circular structure is adapted to the outer surface shape of the cylindrical solution cylinder, which can increase the contact area with the solution cylinder. Combined with the tight fit of the limiting pad, the clamping stability of the solution cylinder can be further improved, preventing the solution cylinder from shaking or shifting during the sampling process.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up an adjustment component, the first motor in the adjustment component drives the rotating disk to rotate through gear transmission, which can realize the horizontal position switching of the sampling syringe. The second motor drives the threaded rod to rotate, which can complete the vertical lifting and lowering of the sampling syringe. The two work together to enable the sampling syringe to move accurately between the solution cylinder and the reaction test tube without the need for manual position adjustment, reducing operation error and improving the efficiency and accuracy of sampling and pipetting. 2. By setting up a placement mechanism, the first limiting clamp and the second limiting clamp are engaged by rotating the screw, which can stably fix the solution cylinders of different specifications in the center position, avoid the solution cylinders shaking or shifting during sampling, and ensure that the sampling syringe can accurately insert to draw reagents. At the same time, the test tube rack also plays a stabilizing role in the placement of reaction test tubes, thus improving the overall stability and reliability of the device during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a liquid chemical reagent sampler for chemical detection according to the present invention; Figure 2 This is a schematic cross-sectional view of the mounting platform for a liquid chemical reagent sampler for chemical detection according to this utility model. Figure 3 This is a schematic diagram of the overall structure of the adjustment component of a liquid chemical reagent sampler for chemical detection according to this utility model; Figure 4 This is a schematic diagram of the overall structure of the placement mechanism of a liquid chemical reagent sampler for chemical detection according to this utility model.

[0018] In the diagram: 1. Mounting platform; 2. Inner cavity groove; 3. Adjustment component; 30. First motor; 31. Drive gear; 32. Driven gear; 33. Drive rod; 34. Rotating disk; 35. Mounting bracket; 36. Second motor; 37. Threaded rod; 4. Extension bracket; 5. Through port; 6. Sampling syringe; 7. Placement mechanism; 71. Placement seat; 72. Extension plate; 73. Fixing plate; 74. Screw; 75. Rotating handle; 76. First limiting clamp; 77. Support rod; 78. Second limiting clamp; 79. Limiting pad; 8. Solution cylinder; 9. Placement platform; 10. Test tube rack; 11. Reaction test tube. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides a technical solution: A liquid chemical reagent sampler for chemical detection includes a mounting platform 1. An inner cavity 2 is provided in the middle of the mounting platform 1. An adjustment component 3 is provided inside the inner cavity 2. The upper part of the adjustment component 3 penetrates the upper wall of the inner cavity 2 and extends to the upper middle of the mounting platform 1. An extension frame 4 is provided on the upper surface of the adjustment component 3. A through-hole 5 is provided on the upper right side of the extension frame 4. A sampling syringe 6 is detachably installed inside the through-hole 5 by a fixing clamp. A placement mechanism 7 is provided on the upper right side of the mounting platform 1. A solution cylinder 8 is provided in the middle of the upper end of the placement mechanism 7. A placement platform 9 is provided on the upper left side of the mounting platform 1. A test tube rack 10 is provided on the upper end of the placement platform 9. A reaction test tube 11 is provided on the inner surface of the test tube rack 10.

[0023] In this embodiment, the adjustment component 3 includes a first motor 30. The output end of the first motor 30 is fixedly mounted with a drive gear 31 via a rotating rod. The outer right side of the drive gear 31 is meshed with a driven gear 32. The upper middle part of the driven gear 32 is inserted and fixedly mounted with a driving rod 33. The upper end of the driving rod 33 is fixedly mounted with a rotating disk 34. The upper middle part of the rotating disk 34 is fixedly mounted with a mounting frame 35. The upper middle part of the mounting frame 35 is fixedly mounted with a second motor 36. The output end of the second motor 36 is fixedly mounted with a threaded rod 37. The extension frame 4 is movably mounted on the upper part of the outer surface of the threaded rod 37 via a movable block. The lower end of the rotating disk 34 is movably fitted with the upper end of the mounting platform 1. The lower part of the outer surface of the threaded rod 37 is rotatably connected to the upper end of the rotating disk 34 via a bearing. The lower part of the outer surface of the driving rod 33 is rotatably connected to the lower inner wall of the inner cavity groove 2 via a bearing. The sampling syringe 6 and the solution cylinder 8 are vertically corresponding.

[0024] Through the above scheme: when the adjustment component 3 is in use, after the first motor 30 is started, it drives the active gear 31 to rotate through the rotating rod. The active gear 31 meshes and drives the driven gear 32 to rotate, which in turn drives the driving rod 33 to rotate, thereby driving the rotating disk 34 and the mounting frame 35 to rotate, thereby realizing the horizontal position adjustment of the sampling syringe 6. At the same time, after the second motor 36 is started, it drives the threaded rod 37 to rotate, which causes the extension frame 4 to move up and down along the threaded rod 37 through the movable block, thereby realizing the vertical position adjustment of the sampling syringe 6. The rotating disk 34 is in movable contact with the mounting platform 1, and the lower part of the threaded rod 37 is connected to the rotating disk 34 through the bearing, which ensures the stability of the rotation and lifting process. The lower part of the driving rod 33 is connected to the lower inner wall of the inner cavity groove 2 through the bearing, which ensures the smooth rotation of the driving rod 33. The vertical correspondence between the sampling syringe 6 and the solution cylinder 8 ensures the accuracy of the sampling position.

[0025] In this embodiment, the placement mechanism 7 includes a placement seat 71. An extension plate 72 is provided at the middle of the front end and the middle of the rear end of the placement seat 71. A fixing plate 73 is provided on the side of the upper end of the two extension plates 72 away from the placement seat 71. A screw 74 is threadedly installed at the middle of the front end of the fixing plate 73 at the front end. A rotating handle 75 is provided at the front end of the screw 74. A first limiting clamp 76 is movably installed on the rear part of the outer surface of the screw 74 through a movable sleeve. A support rod 77 is fixedly installed at the middle of the front end of the fixing plate 73 at the rear end. A second limiting clamp 78 is fixedly installed at the front end of the support rod 77. A limiting pad 79 is provided at the end of the first limiting clamp 76 and the second limiting clamp 78 near the solution cylinder 8. The first limiting clamp 76 and the second limiting clamp 78 are both semi-arc structures. The inner surface of the limiting pad 79 is tightly fitted to the outer surface of the solution cylinder 8.

[0026] With the above scheme: When the placement mechanism 7 is in use, the solution cylinder 8 is placed on the placement seat 71, and the rotating handle 75 drives the screw 74 to rotate, so that the first limiting clamp 76 moves backward under the action of the movable sleeve, and cooperates with the second limiting clamp 78 fixed on the rear fixed plate 73 by the support rod 77. Since the first limiting clamp 76 and the second limiting clamp 78 are both semi-arc structures and symmetrically distributed, they will apply a balanced force to the solution cylinder 8 from the front and rear sides during the clamping process. With the tight fit between the limiting pad 79 and the outer surface of the solution cylinder 8, the solution cylinder 8 can be stably restricted to the center position of the placement seat 71, preventing it from shifting, ensuring that the solution cylinder 8 is always in the center position corresponding to the sampling syringe 6, and ensuring the accuracy of the sampling operation.

[0027] It should be noted that this utility model is a liquid chemical reagent sampler for chemical detection. During use, the solution cylinder 8 containing the liquid chemical reagent is placed on the placement seat 71 of the placement mechanism 7. Rotating the handle 75 drives the screw 74 to rotate, causing the first limiting clamp 76 to move backward and engage with the second limiting clamp 78 to fix the solution cylinder 8 in the center position. Simultaneously, the reaction test tube 11 is placed in the test tube rack 10 on the placement platform 9. Then, the adjusting component 3 starts working, and the second motor 36 starts, driving the threaded rod 37 to rotate, allowing the extension frame 4 to move... The block moves downward along the threaded rod 37, causing the sampling syringe 6 to extend into the solution cylinder 8 to draw the reagent. After the reagent is drawn, the second motor 36 rotates in the opposite direction, causing the sampling syringe 6 to rise. Then, the first motor 30 starts, and the first motor 30 drives the drive gear 31 to rotate through the rotating rod. The drive gear 31 meshes with and drives the driven gear 32 to rotate, causing the drive rod 33 to drive the rotating disk 34 and the mounting frame 35 to rotate, rotating the sampling syringe 6 on the extension frame 4 to above the reaction tube 11. Finally, the sampling syringe 6 is controlled to inject the reagent into the reaction tube 11, completing the sampling operation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid chemical reagent sampler for chemical detection, comprising a mounting stage (1), characterized in that: The mounting platform (1) has an inner cavity groove (2) in the middle. An adjustment component (3) is provided inside the inner cavity groove (2). The upper part of the adjustment component (3) penetrates the upper wall of the inner cavity groove (2) and extends to the upper middle part of the mounting platform (1). An extension frame (4) is provided on the upper part of the outer surface of the adjustment component (3). A through-hole (5) is provided on the upper right side of the extension frame (4). A sampling syringe (6) is detachably installed inside the through-hole (5) by a fixing clamp. A placement mechanism (7) is provided on the upper right side of the mounting platform (1). A solution cylinder (8) is provided in the middle of the upper end of the placement mechanism (7). A placement platform (9) is provided on the upper left side of the mounting platform (1). A test tube rack (10) is provided on the upper end of the placement platform (9). A reaction test tube (11) is provided on the inner surface of the test tube rack (10). The adjustment component (3) includes a first motor (30), the output end of the first motor (30) is fixedly mounted with a drive gear (31) via a rotating rod, the outer surface of the drive gear (31) is meshed with a driven gear (32) on the right side, a driving rod (33) is fixedly mounted through the middle of the upper end of the driven gear (32), a rotating disk (34) is fixedly mounted on the upper end of the driving rod (33), a mounting frame (35) is fixedly mounted on the middle of the upper end of the rotating disk (34), a second motor (36) is fixedly mounted on the middle of the upper end of the mounting frame (35), a threaded rod (37) is fixedly mounted on the output end of the second motor (36), and the extension frame (4) is movably mounted on the upper part of the outer surface of the threaded rod (37) via a movable block.

2. The liquid chemical reagent sampler for chemical detection according to claim 1, characterized in that: The lower end of the rotating disk (34) is movably attached to the upper end of the mounting platform (1), and the lower part of the outer surface of the threaded rod (37) is rotatably connected to the upper end of the rotating disk (34) through a bearing.

3. The liquid chemical reagent sampler for chemical detection according to claim 1, characterized in that: The lower part of the outer surface of the drive rod (33) is rotatably connected to the lower inner wall of the inner cavity groove (2) through a bearing.

4. A liquid chemical reagent sampler for chemical detection according to claim 1, characterized in that: The sampling syringe (6) and the solution cylinder (8) are positioned vertically corresponding.

5. A liquid chemical reagent sampler for chemical detection according to claim 1, characterized in that: The placement mechanism (7) includes a placement seat (71). An extension plate (72) is provided at the middle of the front end and the middle of the rear end of the placement seat (71). A fixing plate (73) is provided on the side of the upper end of the two extension plates (72) away from the placement seat (71). A screw (74) is threadedly installed at the middle of the front end of the fixing plate (73) at the front end. A rotating handle (75) is provided at the front end of the screw (74). A first limiting clamp (76) is movably installed on the rear part of the outer surface of the screw (74) through a movable sleeve. A support rod (77) is fixedly installed at the middle of the front end of the fixing plate (73) at the rear end. A second limiting clamp (78) is fixedly installed at the front end of the support rod (77). A limiting pad (79) is provided at the end of the first limiting clamp (76) and the second limiting clamp (78) near the solution cylinder (8).

6. A liquid chemical reagent sampler for chemical detection according to claim 5, characterized in that: The first limiting clamp (76) and the second limiting clamp (78) are both semi-arc structures, and the inner surface of the limiting pad (79) is closely attached to the outer surface of the solution cylinder (8).

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