Pipettor for detecting traditional Chinese medicinal materials

Abstract

The utility model discloses a pipettor for detecting traditional Chinese medicinal materials, which comprises a sampling barrel, a fixing ring is in threaded connection with the outside of the lower part of the sampling barrel, a filter screen is fixedly connected with the bottom of the fixing ring, the filter screen shields a feeding hole of the sampling barrel, an extraction device is arranged in the sampling barrel, and the sampling barrel is internally provided with a liquid inlet and a liquid outlet. The utility model relates to the technical field of traditional Chinese medicinal material detection. According to the pipettor for detecting the traditional Chinese medicinal materials, large-particle impurities in the traditional Chinese medicinal materials are effectively prevented from entering the sampling barrel through the design of a filter screen below a fixing ring, the purity of a sample is guaranteed, and then the detection accuracy is improved; according to the device, the sampling operation is simpler and more convenient, the operation difficulty is reduced, the working efficiency is improved, the bottom plate is arranged, and when a worker extracts liquid medicine, the bottom plate can be pressed downwards to extrude the medicinal materials, so that the liquid medicine is exposed, and the worker can extract the liquid medicine conveniently.

Description

Technical Field

[0001] The utility model relates to the field of Chinese medicinal material detection, and more specifically, to a pipette used for Chinese medicinal material detection. Background Art

[0002] In the field of Chinese herbal medicine testing, the pipette is an important experimental tool, which is used to accurately measure and transfer Chinese herbal medicine sample solutions. With the deepening of Chinese medicine research and the improvement of standardization requirements, the demand for the accuracy, stability and ease of use of pipettes is also increasing. However, traditional pipettes often have some problems during operation, such as inaccurate sampling, complex operation, unstable structure, etc. These problems seriously affect the accuracy and efficiency of Chinese herbal medicine testing. At the same time, there is a lack of filtering devices, and Chinese herbal medicine samples may contain large particles, which can easily cause the sampling tube to be blocked, thereby affecting the detection accuracy and failing to meet the use requirements. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems that traditional pipettes in the prior art often have during operation, such as inaccurate sampling, complicated operation, unstable structure, lack of filtering device, and the possibility that Chinese medicinal material samples contain large particles, which easily cause the sampling tube to be blocked, thereby affecting the detection accuracy and failing to meet the use requirements, the purpose of the utility model is to provide a pipette for Chinese medicinal material detection, which can realize the filter net design under the fixed ring to effectively prevent large particles of impurities in the Chinese medicinal materials from entering the sampling tube, thereby ensuring the purity of the sample and improving the accuracy of the detection, and providing an extraction device. The extraction device makes the sampling operation easier through a simple combination of a pull rod, a pull ring and a piston, reduces the difficulty of operation and improves work efficiency, and provides a bottom plate. When extracting the medicinal solution, the staff can press the bottom plate downward to squeeze the medicinal material to expose the medicinal solution, which is convenient for the staff to extract.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A pipette for detecting Chinese medicinal materials comprises a sampling barrel, wherein the lower external thread of the sampling barrel is connected to a fixing ring, the bottom of the fixing ring is fixedly connected to a filter screen, the filter screen blocks the feeding port of the sampling barrel, an extraction device is arranged inside the sampling barrel, the outer wall of the sampling barrel is fixedly connected to a mounting block, a connecting rod is arranged below the mounting block, the bottom of the connecting rod is fixedly connected to a bottom plate, the top of the connecting rod is fixedly connected to a limiting device, and the limiting device is clamped with the mounting block.

[0008] Preferably, the extraction device includes a pull rod, a pull ring and a piston, the pull rod is slidably connected to the sampling tube, the top of the pull rod is fixedly connected to the pull ring, one end of the pull rod located inside the sampling tube is fixedly connected to the piston, and the piston is in close contact with the inner wall of the sampling tube.

[0009] Preferably, the surface of the sampling tube is provided with scales.

[0010] Preferably, the limiting device includes a support block, a guide rod, a limit frame, a spring, a moving block, a sliding rod, a baffle, a card block and a slot. The support block is fixedly connected to the top of the connecting rod, the top of the support block is fixedly connected with the guide rod, the guide rod is plugged into the mounting block, a limit frame is arranged inside the support block, the inner wall of the limit frame is fixedly connected with a spring, the limit frame is fixedly connected to the moving block via the spring, the side wall of the moving block is fixedly connected with the sliding rod, the sliding rod is sleeved with the spring, the sliding rod is slidably connected to the support block, the end of the sliding rod is fixedly connected with the baffle, the surface of the baffle is fixedly connected with the card block, the side wall of the mounting block is provided with a slot, and the card block is snap-connected with the slot.

[0011] Preferably, the number of the guide rods is two.

[0012] Preferably, the bottom plate is made of mesh material.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The filter design under the fixed ring effectively prevents large particles of impurities in Chinese medicinal materials from entering the sampling tube, ensuring the purity of the sample and thereby improving the accuracy of the test.

[0016] By setting up the extraction device, the extraction device makes the sampling operation easier through the simple combination of a pull rod, a pull ring and a piston, reduces the operating difficulty and improves the work efficiency.

[0017] By setting up the bottom plate, the staff can press the bottom plate downward to squeeze the medicinal materials when extracting the medicinal liquid, so that the medicinal liquid is exposed, making it easier for the staff to extract. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0022] Description of the numbers in the figure:

[0023] 1. Sampling tube; 2. Fixing ring; 3. Filter; 4. Extraction device; 41. Pull rod; 42. Pull ring; 43. Piston; 5. Mounting block; 6. Connecting rod; 7. Bottom plate; 8. Limiting device; 81. Support block; 82. Guide rod; 83. Limiting frame; 84. Spring; 85. Moving block; 86. Sliding rod; 87. Baffle; 88. Card block; 89. Card slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-4 The utility model provides a technical solution: a pipette for detecting Chinese medicinal materials, comprising a sampling tube 1, a fixing ring 2 is connected to the external thread at the bottom of the sampling tube 1, a filter screen 3 is fixedly connected to the bottom of the fixing ring 2, the filter screen 3 blocks the feeding port of the sampling tube 1, an extraction device 4 is arranged inside the sampling tube 1, a mounting block 5 is fixedly connected to the outer wall of the sampling tube 1, a connecting rod 6 is arranged below the mounting block 5, a bottom plate 7 is fixedly connected to the bottom of the connecting rod 6, a limiting device 8 is fixedly connected to the top of the connecting rod 6, and the limiting device 8 is clamped with the mounting block 5. The filter screen 3 below the fixing ring 2 is designed to effectively prevent large particles of impurities in the Chinese medicinal materials from entering the sampling tube 1, thereby ensuring the purity of the sample and further improving the accuracy of the detection. An extraction device 4 is provided. The extraction device 4 is a simple combination of a pull rod 41, a pull ring 42 and a piston 43, which makes the sampling operation easier, reduces the difficulty of operation, and improves work efficiency. A bottom plate 7 is provided, and when the staff is extracting the medicinal solution, they can press the bottom plate 7 downward to squeeze the medicinal materials to expose the medicinal solution, which is convenient for the staff to extract. A limiting device 8 is provided to facilitate the staff to install and disassemble the bottom plate 7 according to the use requirements, thereby increasing the scope of use.

[0027] The extraction device 4 includes a pull rod 41, a pull ring 42 and a piston 43. The pull rod 41 is slidably connected to the sampling tube 1. The pull ring 42 is fixedly connected to the top of the pull rod 41. The end of the pull rod 41 located inside the sampling tube 1 is fixedly connected to the piston 43. The piston 43 is in close contact with the inner wall of the sampling tube 1. The extraction device 4 makes the sampling operation easier and reduces the difficulty of operation through the simple combination of the pull rod 41, the pull ring 42 and the piston 43.

[0028] The surface of the sampling tube 1 is provided with scales to improve the sampling accuracy.

[0029] Among them, the limiting device 8 includes a support block 81, a guide rod 82, a limit frame 83, a spring 84, a moving block 85, a sliding rod 86, a baffle 87, a card block 88 and a card slot 89. The support block 81 is fixedly connected to the top of the connecting rod 6, and the top of the support block 81 is fixedly connected with the guide rod 82, and the guide rod 82 is plugged into the mounting block 5. A limit frame 83 is arranged inside the support block 81, and the inner wall of the limit frame 83 is fixedly connected with the spring 84. The limit frame 83 is fixedly connected with the moving block 85 through the spring 84. The side wall of the moving block 85 is fixedly connected with the sliding rod 86, and the sliding rod 86 is sleeved with the spring 84. The sliding rod 86 is slidably connected to the support block 81, and the end of the sliding rod 86 is fixedly connected with the baffle 87, and the surface of the baffle 87 is fixedly connected with the card block 88. The side wall of the mounting block 5 is provided with a card slot 89, and the card block 88 is carded with the card slot 89. Set the limit device 8, pull the baffle 87, pull out the block 88, and then plug the guide rod 82 and the installation block 5 so that the block 88 corresponds to the slot 89, release the baffle 87, and the spring 84 drives the moving block 85 to move, drives the sliding rod 86 to move, drives the baffle 87 to move, so that the block 88 is engaged with the slot 89, and the base plate 7 can be installed.

[0030] There are two guide rods 82 to improve overall installation stability.

[0031] The bottom plate 7 is made of a mesh material, which is convenient for squeezing the Chinese medicinal materials downward to expose the medicinal liquid.

[0032] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field within the technical scope disclosed by the utility model and any equivalent replacement or change based on the technical solution and improved concept of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipette for detecting Chinese medicinal materials, comprising a sampling tube (1), characterized in that: The lower external part of the sampling barrel (1) is connected to a fixing ring (2) by a threaded connection, the bottom of the fixing ring (2) is fixedly connected to a filter screen (3), the filter screen (3) blocks the feed port of the sampling barrel (1), an extraction device (4) is arranged inside the sampling barrel (1), the outer wall of the sampling barrel (1) is fixedly connected to a mounting block (5), a connecting rod (6) is arranged below the mounting block (5), the bottom of the connecting rod (6) is fixedly connected to a bottom plate (7), the top of the connecting rod (6) is fixedly connected to a limiting device (8), and the limiting device (8) is snap-connected to the mounting block (5).

2. The pipette for Chinese medicinal material detection according to claim 1, characterized in that: The extraction device (4) comprises a pull rod (41), a pull ring (42) and a piston (43); the pull rod (41) is slidably connected to the sampling tube (1); the top of the pull rod (41) is fixedly connected to the pull ring (42); one end of the pull rod (41) located inside the sampling tube (1) is fixedly connected to the piston (43); and the piston (43) is in close contact with the inner wall of the sampling tube (1).

3. The pipette for Chinese medicinal material detection according to claim 1, characterized in that: The surface of the sampling tube (1) is provided with scales.

4. The pipette for Chinese medicinal material detection according to claim 1, characterized in that: The limiting device (8) comprises a support block (81), a guide rod (82), a limit frame (83), a spring (84), a moving block (85), a sliding rod (86), a baffle (87), a clamping block (88) and a clamping slot (89); the support block (81) is fixedly connected to the top of the connecting rod (6); the top of the support block (81) is fixedly connected to the guide rod (82); the guide rod (82) is plugged into the mounting block (5); a limit frame (83) is arranged inside the support block (81); the inner wall of the limit frame (83) is fixedly connected to the spring; A spring (84) is provided, the limit frame (83) is fixedly connected to a moving block (85) via the spring (84), a side wall of the moving block (85) is fixedly connected to a sliding rod (86), the sliding rod (86) is sleeved with the spring (84), the sliding rod (86) is slidably connected to the support block (81), an end of the sliding rod (86) is fixedly connected to a baffle (87), a surface of the baffle (87) is fixedly connected to a clamping block (88), a side wall of the mounting block (5) is provided with a clamping groove (89), and the clamping block (88) is clamped with the clamping groove (89).

5. The pipette for Chinese medicinal material detection according to claim 4, characterized in that: The number of the guide rods (82) is two.

6. The pipette for Chinese medicinal material detection according to claim 1, characterized in that: The bottom plate (7) is made of a mesh material.

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