A sampling device for chemical raw material testing and analysis

Abstract

The application discloses a sampling device for chemical raw material testing and analysis, and belongs to the technical field of devices for chemical raw material testing and analysis. The sampling device for chemical raw material testing and analysis comprises a sampling cylinder, a liquid taking pipe fixedly connected to the end of the sampling cylinder, a scale arranged on the sampling cylinder, a push-pull frame arranged in the sampling cylinder, a push plate fixedly arranged at the lower end of the push-pull frame, a frictional contact between the push plate and the inner wall of the sampling cylinder, a positioning ring arranged above the push plate, a lifting mechanism arranged on one side of the positioning ring, and the lifting mechanism is used for driving the positioning ring to move up and down. The technical scheme of the application replaces the pulling mode completely depending on hand feeling and experience by arranging the positioning ring and the lifting mechanism, the hard limit ensures the absolute consistency of each pulling stroke, fundamentally eliminates the human error, and ensures the accuracy of the sampling amount and the repeatability of multiple operations.

Description

Technical Field

[0001] This application relates to the technical field of equipment for chemical raw material testing and analysis, and more specifically, to a sampling device for chemical raw material testing and analysis. Background Technology

[0002] In the process of chemical production, the testing and analysis of raw materials is an important part of ensuring product quality and production safety. Therefore, relevant personnel often use sampling equipment for chemical raw material testing and analysis to sample designated raw materials.

[0003] The prior art publication CN222419662U provides a sampling device for chemical analysis. This device, by setting a push rod, a liquid suction plug and a push plug, can titrate equal amounts of test samples in multiple test tubes at one time. The titration speed is fast, and there is no need to measure the titration amount of the solution in each test tube, which saves a lot of time and greatly improves the efficiency of sample collection.

[0004] While the existing technical solutions described above improve sampling efficiency to some extent, they still have the following drawbacks: when using these devices for sampling, users rely entirely on manual pulling, making it difficult to achieve repeated quantitative sampling. This not only results in low efficiency but also increases the likelihood of sampling errors. Therefore, we propose a sampling device for the testing and analysis of chemical raw materials. Utility Model Content

[0005] 1. Technical problems to be solved The purpose of this application is to provide a sampling device for the testing and analysis of chemical raw materials, in order to solve the technical problems mentioned in the background.

[0006] 2. Technical Solution This application provides a sampling device for chemical raw material testing and analysis, comprising: a sampling cylinder, a liquid sampling tube fixedly connected to the end of the sampling cylinder, a scale on the sampling cylinder, a push-pull frame installed inside the sampling cylinder, a push plate fixedly installed at the lower end of the push-pull frame, the push plate rubbing against the inner wall of the sampling cylinder, a positioning ring installed above the push plate, and a lifting mechanism installed on one side of the positioning ring, the lifting mechanism being used to drive the positioning ring to move up and down.

[0007] By adopting the above technical solution, the pull-out method that relies entirely on human touch and experience is replaced. The hard limit ensures the absolute consistency of each pull-out stroke, fundamentally eliminating human error and ensuring the accuracy of the sampling amount and the repeatability of multiple operations.

[0008] As an optional solution to the technical solution of this application, the lifting mechanism includes a rotating frame fixedly installed on the sampling cylinder, a lead screw rotatably connected to the rotating frame, a drive frame threadedly connected to the lead screw, a limit rod installed on the other side of the rotating frame, and the drive frame being limited by the limit rod and slidably connected to it.

[0009] By adopting the above technical solution, the drive frame can smoothly drive the positioning ring to move up and down.

[0010] As an optional solution to the technical solution of this application, an indicator ring is provided on the outer side of the sampling cylinder, the lower edge of the indicator ring is on the same horizontal line as the lower edge of the push plate, and the indicator ring is connected and fixed to the drive frame.

[0011] By adopting the above technical solution, the indicator ring serves as an externally visible ruler pointer that is linked to the end point of the internal push plate movement, and is used to accurately set and indicate the target volume of this sampling outside the sampling tube.

[0012] As an optional solution to the technical solution of this application, a calibration mechanism is also installed on one side of the sampling cylinder, and the calibration mechanism includes a level bubble fixedly installed on the sampling cylinder.

[0013] By adopting the above technical solution, the verticality of the equipment during operation is ensured, avoiding volume reading errors caused by the non-horizontal liquid surface due to the tilt of the cylinder, thus ensuring the accuracy of sampling from another dimension.

[0014] As an optional solution to the technical solution of this application, a liquid dispensing plate is inserted into one side of the liquid collection tube, and multiple connecting tubes are fixedly connected to the liquid dispensing plate, with a flexible tube inserted into one side of the connecting tube.

[0015] By adopting the above technical solution, this technical solution can titrate equal amounts of test samples in multiple test tubes at one time.

[0016] 3. Beneficial effects One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. The technical solution of this application replaces the pull-out method that relies entirely on human touch and experience by setting a positioning ring and a lifting mechanism. The hard limit ensures the absolute consistency of each pull-out stroke, fundamentally eliminating human error and ensuring the accuracy of the sampling amount and the repeatability of multiple operations.

[0017] 2. The technical solution of this application sets an indicator ring as an externally visible scale pointer that is linked to the end point of the internal push plate movement. This is used to accurately set and indicate the target volume of the current sampling outside the sampling cylinder. At the same time, by setting a level bubble, the verticality of the equipment during operation is ensured, avoiding volume reading errors caused by the liquid surface not being level due to the tilt of the cylinder. This ensures the accuracy of sampling from another dimension. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a sampling device for chemical raw material testing and analysis, as disclosed in a preferred embodiment of this application. Figure 2 This is a cross-sectional view of the sampling cylinder in a sampling device for chemical raw material testing and analysis, as disclosed in a preferred embodiment of this application. Figure 3 This is a partial structural diagram of one side of the indicator ring in a sampling device for chemical raw material testing and analysis, as disclosed in a preferred embodiment of this application. The labels in the diagram are as follows: 1. Sampling cylinder; 2. Liquid collection tube; 3. Separating plate; 4. Rotating frame; 5. Driving frame; 6. Positioning ring; 7. Indicating ring; 8. Level bubble; 9. Lead screw; 10. Limiting rod; 11. Push-pull frame; 12. Scale; 13. Push plate; 14. Connecting tube; 15. Flexible tube. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings. Reference Figure 1 and Figure 2 This application discloses a sampling device for chemical raw material testing and analysis, comprising: a sampling cylinder 1, a liquid sampling tube 2 fixedly connected to the end of the sampling cylinder 1, a scale 12 on the sampling cylinder 1, a push-pull frame 11 installed inside the sampling cylinder 1, a push plate 13 fixedly installed at the lower end of the push-pull frame 11, the push plate 13 rubbing against the inner wall of the sampling cylinder 1, a positioning ring 6 installed above the push plate 13, and a lifting mechanism installed on one side of the positioning ring 6, the lifting mechanism being used to drive the positioning ring 6 to move up and down.

[0020] The lifting mechanism includes a rotating frame 4 fixedly installed on the sampling cylinder 1. A lead screw 9 is rotatably connected to the rotating frame 4. A drive frame 5 is threadedly connected to the lead screw 9. A limit rod 10 is installed on the other side of the rotating frame 4. The drive frame 5 is restricted by the limit rod 10 and slidably connected to it.

[0021] According to the required sample volume, the staff rotates the screw 9, which drives the frame 5 to move the positioning ring 6 up and down until the positioning ring 6 moves to the designated position. At this time, the height of the positioning ring 6 inside the sampling cylinder is precisely set. Then, the staff pushes and pulls the pusher frame 11 to move the push plate 13, which ensures that the sample volume is the same each time. This method replaces the pull-out method that relies entirely on human feel and experience. The hard limit ensures the absolute consistency of the pull-out stroke each time, fundamentally eliminating human error and ensuring the accuracy of the sample volume and the repeatability of multiple operations.

[0022] Reference Figure 2 and Figure 3 An indicator ring 7 is fitted on the outside of the sampling cylinder 1. The lower edge of the indicator ring 7 is on the same horizontal line as the lower edge of the push plate 13. The indicator ring 7 is connected and fixed to the drive frame 5. The indicator ring 7 serves as an externally visible scale pointer that is linked to the end point of the internal push plate movement. It is used to accurately set and indicate the target volume of this sampling outside the sampling cylinder.

[0023] A calibration mechanism is also installed on one side of the sampling cylinder 1. The calibration mechanism includes a horizontal bubble 8 fixedly installed on the sampling cylinder 1. The setting of the horizontal bubble 8 ensures the verticality of the equipment during operation and avoids volume reading errors caused by the non-horizontal liquid surface due to the tilt of the cylinder, thus ensuring the accuracy of sampling from another dimension.

[0024] The staff observes the level bubble 8 to keep the sampling cylinder 1 vertical. Then, the staff rotates the lead screw 9. During the movement of the positioning ring 6, the indicator ring 7 moves synchronously until the lower edge of the indicator ring 7 is aligned with the target scale.

[0025] Reference Figure 1 A dispensing plate 3 is inserted into one side of the liquid collection tube 2. Multiple connecting tubes 14 are fixedly connected to the dispensing plate 3. A flexible tube 15 is inserted into one side of the connecting tube 14, so that this technical solution can titrate equal amounts of test samples in multiple test tubes at one time.

[0026] This application eliminates human error by setting a positioning ring 6 and a lifting mechanism, replacing the pull-out method that relies entirely on human touch and experience, thus ensuring the accuracy of the sampling volume and the repeatability of multiple operations. At the same time, by setting an indicator ring 7, the target volume of this sampling is accurately set and indicated on the outside of the sampling cylinder. In addition, by setting a level bubble 8, the volume reading error caused by the non-level liquid surface due to the tilt of the cylinder is avoided.

[0027] The implementation principle of a sampling device for chemical raw material testing and analysis according to an embodiment of this application is as follows: When relevant personnel need to use this technical solution to sample chemical reagents during chemical raw material testing and analysis, the personnel first observe the level bubble 8 to ensure that the sampling cylinder 1 remains vertical. Then, the personnel rotate the screw 9, which drives the frame 5 to move the positioning ring 6 and the indicator ring 7 up and down until the indicator ring 7 moves to the designated scale. Subsequently, the personnel push and pull the push-pull frame 11 to move the push plate 13, thus ensuring that the sampling amount is the same each time. By continuing in this manner, the sampling operation of the reagents can be completed.

Claims

1. A sampling device for the testing and analysis of chemical raw materials, characterized in that: Includes: a sampling tube (1), a liquid collection tube (2) fixedly connected to the end of the sampling tube (1), a scale (12) provided on the sampling tube (1), a push-pull frame (11) installed inside the sampling tube (1), a push plate (13) fixedly installed at the lower end of the push-pull frame (11), the push plate (13) rubbing against the inner wall of the sampling tube (1), a positioning ring (6) installed above the push plate (13), and a lifting mechanism installed on one side of the positioning ring (6), the lifting mechanism being used to drive the positioning ring (6) to move up and down.

2. The sampling device for chemical raw material testing and analysis according to claim 1, characterized in that: The lifting mechanism includes a rotating frame (4) fixedly installed on the sampling cylinder (1), a lead screw (9) is rotatably connected to the rotating frame (4), a drive frame (5) is threadedly connected to the lead screw (9), a limit rod (10) is installed on the other side of the rotating frame (4), and the drive frame (5) is limited by the limit rod (10) and slidably connected to it.

3. The sampling device for chemical raw material testing and analysis according to claim 2, characterized in that: The sampling tube (1) is fitted with an indicator ring (7) on the outside. The lower edge of the indicator ring (7) is on the same horizontal line as the lower edge of the push plate (13). The indicator ring (7) is connected and fixed to the drive frame (5).

4. The sampling device for chemical raw material testing and analysis according to claim 3, characterized in that: A calibration mechanism is also installed on one side of the sampling tube (1), the calibration mechanism including a level bubble (8) fixedly installed on the sampling tube (1).

5. The sampling device for chemical raw material testing and analysis according to claim 1, characterized in that: A liquid dispensing plate (3) is inserted into one side of the liquid collection tube (2), and multiple connecting tubes (14) are fixedly connected to the liquid dispensing plate (3). A flexible tube (15) is inserted into one side of the connecting tube (14).

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