Quantitative sampling and metering device

Abstract

The utility model relates to the technical field of sampling and metering, and discloses a quantitative sampling and metering device which comprises a conveying pipeline, a sampling mechanism is fixedly installed on one side of the conveying pipeline, a sliding barrel is arranged in the sampling mechanism, and a sampling groove is formed in the connecting position of the sampling mechanism and the conveying pipeline; two sliding blocks are connected to the front side of the sliding barrel in a sliding mode, the two sliding blocks are connected through a connecting pipe, and the two sliding blocks slide on the front side of the sliding barrel so that a solution in the conveying pipeline can be extracted into the connecting pipe between the two sliding blocks; a pushing mechanism is fixedly installed on one side of the sliding block and used for pushing the sliding block to sample a solution in the conveying pipeline, and the pushing mechanism slides in the sliding cylinder in a reciprocating mode through a reciprocating connecting rod mechanism. By accurately controlling the position and the moving distance of the sliding block, the consistency of the sampling amount each time is realized, and the sampling precision is improved; automatic sampling is achieved through a reciprocating connecting rod mechanism and a motor, manual intervention is reduced, and the sampling efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of sampling and metering, and specifically relates to a quantitative sampling and metering device. Background Art

[0002] In the fields of industrial production, chemical analysis, pharmaceutical manufacturing, etc., precise sampling of fluids such as liquids or slurries is a basic and important operation. Traditional sampling methods mostly rely on manual operation and have the following deficiencies: insufficient accuracy: it is difficult for manual sampling to ensure the consistency of the sampling volume each time, resulting in errors in the experimental or production process; low efficiency: the manual sampling process is cumbersome and time-consuming, and is not suitable for the needs of large-scale or continuous sampling; high labor intensity: long-term manual sampling operations will increase the labor intensity of operators and affect work comfort; potential safety hazards: when dealing with toxic, harmful or high-temperature fluids, manual sampling poses safety risks. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, this application provides a quantitative sampling and metering device.

[0005] (2) Technical Solutions

[0006] To solve the above problems, this application provides the following technical solutions: A quantitative sampling and metering device, comprising: a conveying pipeline, a sampling mechanism is fixedly installed on one side of the conveying pipeline, a sliding cylinder is provided inside the sampling mechanism, and a sampling groove is provided at the connection between the sampling mechanism and the conveying pipeline;

[0007] Two sliders are slidably connected to the front side of the sliding cylinder, and the two sliders are connected by a connecting pipe. By sliding the two sliders on the front side of the sliding cylinder, the solution inside the conveying pipeline can be extracted into the connecting pipe between the two sliders;

[0008] A pushing mechanism is fixedly installed on one side of the slider for pushing the slider to sample the solution inside the conveying pipeline, and the pushing mechanism reciprocates inside the sliding cylinder through a reciprocating connecting rod mechanism.

[0009] Preferably, the pushing mechanism includes a push rod, the push rod is fixedly connected to one side of the slider, the other end of the push rod is fixedly installed with a push plate, and the push rod and the push plate are slidably connected inside the sliding cylinder.

[0010] Preferably, the reciprocating connecting rod mechanism includes a motor, the motor is fixedly installed on the rear side of the sliding cylinder, the output shaft of the motor is fixedly installed with a first connecting rod, the other end of the first connecting rod is rotatably connected to a second connecting rod, and the other end of the second connecting rod is rotatably connected to one side of the push plate through a connecting block.

[0011] Preferably, a sampling groove is communicated below the sliding cylinder, the sampling groove penetrates to the outside of the sampling mechanism and is provided with a connecting screw thread, and a sampling bottle is rotatably connected to the connecting screw thread.

[0012] Preferably, an observation window is provided on the surface of the sampling bottle, and a scale is provided on one side of the observation window.

[0013] Preferably, a plurality of filling holes are provided on the connecting pipe, and a sealing ring is sleeved on the slider.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present application provides a quantitative sampling and metering device, which has the following beneficial effects:

[0016] 1. For this quantitative sampling and metering device, by precisely controlling the position and moving distance of the slider, the consistency of the sampling volume each time is achieved, and the sampling accuracy is improved; the reciprocating link mechanism and the motor are used to achieve automatic sampling, reducing manual intervention and improving the sampling efficiency.

[0017] 2. For this quantitative sampling and metering device, the observation window and scale of the sampling bottle facilitate real-time observation of the liquid level position and accurate metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a quantitative sampling and metering device of the present application;

[0019] Figure 2 is a schematic structural diagram of the sampling mechanism of the present application;

[0020] Figure 3 is a schematic structural diagram of the sampling process of the present application.

[0021] In the figure: 1, conveying pipeline; 2, sampling bottle; 21, scale; 22, observation window; 3, sampling mechanism; 4, reciprocating link mechanism; 41, first connecting rod; 42, motor; 43, second connecting rod; 44, connecting block; 5, push rod; 51, push plate; 6, connecting pipe; 7, slider; 8, sampling groove; 9, sampling port; 91, connecting screw thread; 10, sliding cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0023] Please refer to Figures 1 - 3, this application provides a new technical solution: a quantitative sampling and metering device, including a conveying pipeline 1. On one side of the conveying pipeline 1, a sampling mechanism 3 is fixedly installed. Inside the sampling mechanism 3, a sliding cylinder 10 is provided. At the connection between the sampling mechanism 3 and the conveying pipeline 1, a sampling groove 8 is provided, and the front side of the sliding cylinder 10 communicates with the sampling groove 8;

[0024] On the front side of the sliding cylinder 10, two sliders 7 are slidably connected. The two sliders 7 are connected by a connecting pipe 6. By sliding the two sliders 7 on the front side of the sliding cylinder 10, the solution inside the conveying pipeline 1 can be pumped into the connecting pipe 6 between the two sliders 7, achieving the purpose of pumping the solution inside the conveying pipeline 1. Moreover, the volume of the solution pumped each time is the volume between the two sliders 7, which can achieve the purpose of quantitative sampling;

[0025] On one side of the slider 7, a pushing mechanism is fixedly installed, which is used to push the slider 7 to sample the solution inside the conveying pipeline 1. The pushing mechanism reciprocates inside the sliding cylinder 10 through a reciprocating connecting rod mechanism 4.

[0026] In some embodiments, the diameter of the sampling groove 8 is larger than the diameter of the front side of the sliding cylinder 10, which is convenient for sampling the solution inside the conveying pipeline 1; a number of filling holes are provided on the connecting pipe 6, which can improve the sampling efficiency. A sealing ring is sleeved on the slider 7 to ensure the sealing performance during the sampling process.

[0027] In some embodiments, a sampling groove 9 is communicated below the sliding cylinder 10. The sampling groove 9 penetrates to the outside of the sampling mechanism 3 and is provided with a connecting screw thread 91. A sampling bottle 2 is rotatably connected to the connecting screw thread 91, which is used to store and measure the sampled solution.

[0028] In this embodiment, an observation window 22 is provided on the surface of the sampling bottle 2, which is used to observe the liquid level position of the solution inside the sampling bottle 2. A scale 21 is provided on one side of the observation window 22, which can measure the solution inside the sampling bottle 2.

[0029] In some embodiments, the pushing mechanism includes a push rod 5. The push rod 5 is fixedly connected to one side of the slider 7. The other end of the push rod 5 is fixedly installed with a push plate 51. The push rod 5 and the push plate 51 are slidably connected inside the sliding cylinder 10; during use, the two sliders 7 can be pushed to slide at the front end of the sliding cylinder 10 through the push rod 5 and the push plate 51 to sample the solution inside the conveying pipeline 1.

[0030] In some embodiments, the reciprocating link mechanism 4 includes a motor 42 fixedly installed at the rear side of the sliding cylinder 10. A first connecting rod 41 is fixedly installed on the output shaft of the motor 42. The other end of the first connecting rod 41 is rotatably connected to a second connecting rod 43. The other end of the second connecting rod 43 is rotatably connected to one side of the push plate 51 through a connecting block 44. During use, the motor 42 is started. The first connecting rod 41 can be driven by the motor 42 to perform a circular motion around the motor 42 inside the sliding cylinder 10. The link mechanism composed of the first connecting rod 41, the second connecting rod 43, and the connecting block 44 can drive the push rod 5 to perform a reciprocating motion inside the sliding cylinder 10.

[0031] During the use of a quantitative sampling and metering device, the sampling bottle 2 is installed on the connecting screw thread 91 of the sampling tank 9 to ensure that the slider 7 is in the initial position. The motor 42 is started, and the motor 42 drives the first connecting rod 41 to perform a circular motion. The first connecting rod 41 drives the push plate 51 and the push rod 5 to perform a reciprocating linear motion inside the sliding cylinder 10 through the second connecting rod 43 and the connecting block 44. The push rod 5 pushes the slider 7 to slide inside the sliding cylinder 10, so that the solution in the conveying pipe 1 enters the connecting pipe 6. When the slider 7 reaches the limit position, the solution in the sampling tank 8 is drawn into the connecting pipe 6. The slider 7 returns to the initial position, and the sampled solution is transferred to the sampling bottle 2. The volume of the solution inside the sampling bottle 2 is measured through the observation window 22 and the scale 21.

[0032] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quantitative sampling and metering device, characterized in that, Comprising: A conveying pipeline, on one side of which a sampling mechanism is fixedly installed. A sliding cylinder is provided inside the sampling mechanism, and a sampling groove is provided at the connection between the sampling mechanism and the conveying pipeline; Two sliders are slidably connected to the front side of the sliding cylinder, and the two sliders are connected by a connecting pipe. By sliding the two sliders on the front side of the sliding cylinder, the solution inside the conveying pipeline can be pumped into the connecting pipe between the two sliders; A pushing mechanism is fixedly installed on one side of the slider for pushing the slider to sample the solution inside the conveying pipeline. The pushing mechanism reciprocates inside the sliding cylinder through a reciprocating connecting rod mechanism.

2. The quantitative sampling and metering device according to claim 1, characterized in that, The pushing mechanism includes a push rod, the push rod is fixedly connected to one side of the slider, and the other end of the push rod is fixedly installed with a push plate. The push rod and the push plate are slidably connected inside the sliding cylinder.

3. The quantitative sampling and metering device according to claim 1, characterized in that, The reciprocating connecting rod mechanism includes a motor, the motor is fixedly installed on the rear side of the sliding cylinder, the output shaft of the motor is fixedly installed with a first connecting rod, the other end of the first connecting rod is rotatably connected with a second connecting rod, and the other end of the second connecting rod is rotatably connected to one side of the push plate through a connecting block.

4. The quantitative sampling and metering device according to claim 1, characterized in that, A sampling groove is communicated below the sliding cylinder, the sampling groove penetrates to the outside of the sampling mechanism and is provided with a connecting screw thread, and a sampling bottle is rotatably connected to the connecting screw thread.

5. The quantitative sampling and metering device according to claim 4, characterized in that, An observation window is arranged on the surface of the sampling bottle, and a scale is arranged on one side of the observation window.

6. The quantitative sampling and metering device according to claim 1, characterized in that A number of filling holes are provided on the connecting pipe, and a sealing ring is sleeved on the slider.

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