Pipettes for Chinese medicine testing

Abstract

The present invention relates to the technical field of traditional Chinese medicine detection. A pipette for traditional Chinese medicine detection comprises a pipette component, a purge component is installed at the lower end of the pipette component, and a grab component is arranged at the upper end of the pipette component. The pipette component comprises a pipette shell, a baffle is fixedly connected to the inner wall of the pipette shell, a mounting column is fixedly connected to the upper surface of the baffle, a slider is slidably connected inside the mounting column, a push switch for acting on the slider is slidably connected in the pipette shell, an inclined block is formed on the inner wall of the push switch, an inclined surface is formed on the side wall of the slider for slidingly fitting with the inclined block, a spring is fixedly connected to the top end of the push switch, and a transmission rod is fixedly connected to the lower end of the spring. By arranging the purge component, the pipette shell is divided into two independent chambers under the joint action of a piston A, a sleeve and the pipette shell, and then the rotating disk is rotated to discharge the air compressed by the piston A from the exhaust pipe, so as to clean the medicinal liquid attached to the outer wall of the liquid storage tube.

Description

Technical Field

[0001] The invention relates to the technical field of traditional Chinese medicine detection, in particular to a pipette used for traditional Chinese medicine detection. Background Art

[0002] In traditional Chinese medicine testing experiments, it is often necessary to grind and homogenize the Chinese medicine samples in a mortar, and then transfer the homogenate to a container. When testing Chinese medicinal materials, it is necessary to extract the effective ingredients of the homogenate and transfer them to a special instrument for efficacy testing.

[0003] Publication No. CN112023994A discloses a pipette for Chinese medicine detection, including an external pipette mechanism, the inner cavity of the external pipette mechanism is slidably plugged with a pressing piston support mechanism, the inner cavities of the external pipette mechanism and the pressing piston support mechanism are both slidably plugged with a central air pressure piston rod mechanism, the number of external pipette mechanisms is set to multiple, and multiple connecting semicircular clamping mechanisms are clamped between the multiple external pipette mechanisms. The present invention is provided with a central air pressure piston rod mechanism, and the sealed arc wind pressure plate in the inner cavity of the second annular piston movable groove is pushed by the air pressure, which drives the air pressure sliding piston rod to slide upward, which relatively improves the convenience of manual aspiration of Chinese medicine reagents. At the same time, the present invention is a disposable device as a whole, thereby greatly reducing the use cost of Chinese medicine clinics. However, the above-mentioned pipette for Chinese medicine detection has the following problems:

[0004] The pipette is not designed with a corresponding cleaning device. After sampling, part of the medicine liquid will adhere to the outer surface of the storage tube. When the medicine liquid in the storage tube is discharged, the size of the output medicine liquid droplets will differ too much, affecting the test results. In addition, the medicine liquid adhering to the outside of the sampling tube is prone to dust. When the sampling tube is discharged, this part of the medicine liquid and the output medicine liquid will mix and affect the test results.

[0005] Therefore, there is a need for pipettes for traditional Chinese medicine testing. Summary of the invention

[0006] In order to solve all or part of the above problems, the purpose of the present invention is to provide a pipette for traditional Chinese medicine testing, so as to solve the problem that the pipette is not designed with a corresponding cleaning device, and part of the medicine liquid will be attached to the outer surface of the liquid storage tube after sampling. When the medicine liquid in the liquid storage tube is then output, the size of the output medicine liquid droplets will differ too much, affecting the test results, and at the same time, it is more convenient to extract the medicine liquid.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a pipette for detecting traditional Chinese medicine, comprising a pipette component, a purge component is installed at the lower end of the pipette component, and a grabbing component is arranged at the upper end of the pipette component, the pipette component comprises a pipette shell, a baffle is fixedly connected to the inner wall of the pipette shell, a mounting column is fixedly connected to the upper surface of the baffle, a slider is slidably connected inside the mounting column, a push switch for acting on the slider is slidably connected in the pipette shell, an inclined block is formed on the inner wall of the push switch, and an inclined surface is formed on the side wall of the slider for slidingly fitting with the inclined block, a spring is fixedly connected to the top end of the push switch, a transmission rod is fixedly connected to the lower end of the spring, the mounting column is slidably sleeved on the outer surface of the transmission rod, and a matching An open groove through which the slider slides, a notch is formed in the slider, and a matching inclined surface is formed on the inner wall of the open groove and the notch that slides in contact with each other. The outer end of the transmission rod is fixedly connected to a piston A, and a piston B is arranged directly below the piston A. The piston B is installed at the lower end of the transmission rod. The purge assembly includes a mounting seat, which is threadedly mounted on the lower end of the pipetting shell, and a mounting plate is fixedly connected to the upper end of the mounting seat. A sleeve is fixedly connected to the inner bottom surface of the mounting seat, and the inner wall of the sleeve is in contact with the piston A. An exhaust pipe is fixedly connected to the lower bottom surface of the mounting seat, and a rotating disk is rotatably connected to the mounting seat, and a through groove is formed in the rotating disk. A liquid storage tube is threadedly connected to the lower bottom surface of the mounting seat, and the outer surface of the piston B is in contact with the inner wall of the liquid storage tube.

[0008] Preferably, the grabbing assembly comprises a mounting sleeve, which is arranged on the outer surface of the pipetting housing, and is a component made of rubber, and a groove is provided on one side of the mounting sleeve;

[0009] It is used to facilitate the operator's grasping and increase the friction between the installation sleeve and the palm.

[0010] Preferably, the inner wall of the pipetting housing is fixedly connected with a fixing column, two groups of fixing columns are provided and symmetrically installed, a guide groove is provided on the push switch, and the outer surface of the fixing column is slidably connected to the guide groove;

[0011] It is used to limit the movement stroke of the push switch so that it can be installed and set to perform displacement movement.

[0012] Preferably, the baffle is not connected to the upper end of the sleeve and there is a gap between them, so that a cavity is formed between the pipetting housing and the piston A;

[0013] It is used to compress the gas in the cavity and pressurize it when piston A moves upward.

[0014] Preferably, a buffer pad is fixedly connected to the upper surface of the push switch, and the buffer pad is a component made of rubber, and an anti-slip groove is provided on the buffer pad;

[0015] It is used to give users a better usage experience while preventing slipping during the pressing process.

[0016] Preferably, a movable groove is provided on one side of the mounting seat, a turning handle is fixedly connected to one side of the rotating disk, and the turning handle is arranged in the movable groove;

[0017] It is used to conveniently rotate the rotating disk to align the rubber sleeve with the exhaust pipe, so as to discharge the gas in the cavity formed by the pipette housing and the piston A.

[0018] Preferably, the mounting plate is provided with air holes;

[0019] It is used to facilitate the gas in the cavity formed by the pipetting housing and the piston A to enter the mounting seat.

[0020] Preferably, an air guide groove is provided on the liquid storage tube;

[0021] It is used to facilitate the gas to blow the outer wall of the liquid storage tube more thoroughly.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The pipette for traditional Chinese medicine detection proposed in the present invention is provided with a purge assembly. Under the joint action of the piston A, the sleeve and the pipette shell, the pipette shell is divided into two independent chambers, and then the rotating disk is rotated to discharge the air compressed by the piston A from the exhaust pipe to clean the medicine liquid attached to the outer wall of the liquid storage tube.

[0024] The pipette for traditional Chinese medicine detection proposed by the present invention provides a grabbing component, and directly sleeves the mounting sleeve on the outer surface of the pipetting shell, so that the operator can grab the entire device more conveniently, and the pipetting operation can be performed more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the pipette used for traditional Chinese medicine detection of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of a liquid transfer assembly for traditional Chinese medicine detection of the present invention;

[0027] Figure 3 It is a schematic diagram of the overall structure of the purge assembly of the pipette used for traditional Chinese medicine detection of the present invention;

[0028] Figure 4 It is a schematic diagram of the overall structure of the grabbing assembly of the pipette used for traditional Chinese medicine detection of the present invention;

[0029] Figure 5 It is a partial cross-sectional schematic diagram of a liquid transfer assembly of a liquid transfer device for traditional Chinese medicine detection of the present invention;

[0030] Figure 6 It is a cross-sectional schematic diagram of a mounting base of a pipette for traditional Chinese medicine detection of the present invention;

[0031] Figure 7 It is a schematic diagram of the overall structure of the rotating disk of the pipette used for traditional Chinese medicine detection of the present invention;

[0032] Figure 8 It is a schematic diagram of the overall structure of the liquid storage tube of the pipette used for traditional Chinese medicine detection of the present invention;

[0033] In the figure:

[0034] 1. Pipette assembly; 11. Pipette shell; 111. Fixed column; 12. Baffle; 13. Mounting column; 14. Slider; 15. Push switch; 151. Buffer pad; 153. Guide groove; 16. Spring; 17. Transmission rod; 18. Piston A; 19. Piston B; 2. Purge assembly; 21. Mounting seat; 212. Movable groove; 22. Mounting plate; 221. Air hole; 23. Sleeve; 24. Exhaust pipe; 25. Rotating disk; 26. Through groove; 27. Turning handle; 28. Liquid storage tube; 281. Air guide groove; 3. Grabbing assembly; 31. Mounting sleeve; 32. Groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 8As shown, an embodiment of the present invention is as follows: a pipette for Chinese medicine detection, comprising a pipette component 1, a purge component 2 is installed at the lower end of the pipette component 1, and a grab component 3 is arranged at the upper end of the pipette component 1, the pipette component 1 comprises a pipette shell 11, a baffle 12 is fixedly connected to the inner wall of the pipette shell 11, a mounting column 13 is fixedly connected to the upper surface of the baffle 12, a slider 14 is slidably connected inside the mounting column 13, a push switch 15 for acting on the slider 14 is slidably connected in the pipette shell 11, an inclined block is formed on the inner wall of the push switch 15, and an inclined surface is formed on the side wall of the slider 14 to slide with the inclined block, a spring 16 is fixedly connected to the top end of the push switch 15, a transmission rod 17 is fixedly connected to the lower end of the spring 16, the mounting column 13 is slidably sleeved on the outer surface of the transmission rod 17, and a matching slider 14 is formed in the transmission rod 17 An open groove that slides through, a notch is formed in the slider 14, and the inner walls of the open groove and the notch that slide in contact with each other form a matching inclined surface. The outer end of the transmission rod 17 is fixedly connected to a piston A18, and a piston B19 is arranged directly below the piston A18. The piston B19 is installed at the lower end of the transmission rod 17. The purge assembly 2 includes a mounting seat 21, and the mounting seat 21 is threadedly mounted on the lower end of the pipetting shell 11. The upper end of the mounting seat 21 is fixedly connected to a mounting plate 22, and the inner bottom surface of the mounting seat 21 is fixedly connected to a sleeve 23, and the inner wall of the sleeve 23 is in contact with the piston A18. The lower bottom surface of the mounting seat 21 is fixedly connected to an exhaust pipe 24, and a rotating disk 25 is rotatably connected to the mounting seat 21, and a through groove 26 is formed in the rotating disk 25. The lower bottom surface of the mounting seat 21 is threadedly connected to a liquid storage tube 28, and the outer surface of the piston B19 is in contact with the inner wall of the liquid storage tube 28.

[0037] The baffle 12 divides the liquid transfer shell 11 into two independent cavities. The upper surface of the baffle 12 is fixedly connected with a mounting column 13, which guides the transmission rod 17 to prevent it from deflecting during movement. The mounting column 13 is slidably connected with a slider 14 inside, and is used in conjunction with the push switch 15. The inner wall of the push switch 15 is formed with an inclined block, and the side wall of the slider 14 is formed with an inclined surface that fits the sliding of the inclined block, so that the side wall of the slider 14 and the inclined block on the inner wall of the push switch 15 cooperate with each other, so that when the push switch 15 is pressed downward, the slider 14 slides along the mounting column 13, and at this time, the transmission rod 17 moves upward under the extrusion of the opening groove and the inclined surface of the notch. The piston B19 cooperates with the liquid storage tube 28 to extract the liquid, and the exhaust pipe 24 discharges the gas compressed upward by the piston A18. The lower bottom surface of the mounting seat 21 is threadedly connected with the liquid storage tube 28, and the outer surface of the piston B19 fits the inner wall of the liquid storage tube 28.

[0038] The grabbing assembly 3 includes a mounting sleeve 31, which is sleeved on the outer surface of the pipetting shell 11, and the mounting sleeve 31 is a component made of rubber, which increases the user experience of the operator and makes the grip more comfortable. A groove 32 is provided on one side of the mounting sleeve 31 to increase the contact area between the operator's palm and the mounting sleeve 31 and increase the friction. The inner wall of the pipetting shell 11 is fixedly connected with a fixing column 111, and the fixing column 111 is provided with two groups and symmetrically installed. A guide groove 153 is provided on the push switch 15, and the outer surface of the fixing column 111 is slidably connected to the guide groove 153. When the push switch 15 is installed in the cavity on the pipetting shell 11, it guides it. The baffle 12 is not connected to the upper end of the sleeve 23 and there is a gap, so that a cavity is formed between the pipetting shell 11 and the piston A18. When extracting the liquid medicine, the piston A18 moves upward to compress the air in the cavity.

[0039] A buffer pad 151 is fixedly connected to the upper surface of the push switch 15, and the buffer pad 151 is a component made of rubber, which gives the user a better using experience. An anti-slip groove is arranged on the buffer pad 151 to increase the friction between the pressing finger and the push switch 15. A movable groove 212 is provided on one side of the mounting seat 21, and a turning handle 27 is fixedly connected to one side of the rotating disk 25. The turning handle 27 is arranged in the movable groove 212, so that the rotating disk 25 has a certain range of movement, thereby controlling whether the through groove 26 overlaps with the exhaust pipe 24 for purging operation. An air hole 221 is provided on the mounting plate 22, which facilitates the gas in the upper cavity formed by the piston A18, the pipetting shell 11 and the sleeve 23 to be transported to the mounting seat 21. An air guide groove 281 is provided on the liquid storage tube 28, so that the purge wind can more conveniently purge the liquid storage tube 28.

[0040] Working principle: first, install the liquid storage tube 28 on the mounting base 21, then assemble the mounting base 21 and the pipetting shell 11 together, and put the mounting sleeve 31 on the outer surface of the pipetting shell 11, then insert the liquid storage tube 28 into the medicinal solution to be detected, press the push switch 15 with your finger, so that the inclined block on the inner wall of the push switch 15 squeezes the slider 14, so that the transmission rod 17 moves upward, and then the piston B19 is driven upward by the transmission rod 17 to complete the extraction operation of the medicinal solution. While extracting, the piston A18 compresses the air in the pipetting shell 11 upward. When the air storage amount in the pipetting shell 11 remains unchanged, the air storage space of the pipetting shell 11 is reduced to realize the compression operation of the air, and then the rotating disk 25 is rotated to align the through groove 26 and the exhaust pipe 24, and the high-pressure gas enters the exhaust pipe 24 from the through groove 26, and then the medicinal solution attached to the outer surface of the liquid storage tube 28 is purged, thereby ensuring that the discharged medicinal solution is not affected by the medicinal solution attached to the outer wall of the liquid storage tube 28.

[0041] It should be noted that, in the description of the present application, it should be understood that the terms "length", "thickness", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipette for traditional Chinese medicine testing, comprising a pipetting component (1), a purge component (2) being installed at the lower end of the pipetting component (1), and a grabbing component (3) being arranged at the upper end of the pipetting component (1), characterized in that: The pipetting assembly (1) comprises a pipetting shell (11), the inner wall of the pipetting shell (11) is fixedly connected to a baffle (12), the upper surface of the baffle (12) is fixedly connected to a mounting column (13), the interior of the mounting column (13) is slidably connected to a slider (14), a push switch (15) for acting on the slider (14) is slidably connected in the pipetting shell (11), an inclined block is formed on the inner wall of the push switch (15), a side wall of the slider (14) is formed with an inclined surface that is slidably fitted with the inclined block, a spring (16) is fixedly connected to the top end of the push switch (15), a transmission rod (17) is fixedly connected to the lower end of the spring (16), the mounting column (13) is slidably sleeved on the outer surface of the transmission rod (17), an open groove is formed in the transmission rod (17) for sliding through the slider (14), a notch is formed in the slider (14), and the inner wall of the opening groove and the notch that are slidably fitted with each other is formed with a suitable The transmission rod (17) has an inclined surface, the outer end of the transmission rod (17) is fixedly connected to a piston A (18), a piston B (19) is arranged directly below the piston A (18), and the piston B (19) is mounted on the lower end of the transmission rod (17). The purge assembly (2) comprises a mounting seat (21), the mounting seat (21) is threadedly mounted on the lower end of the pipetting shell (11), the upper end of the mounting seat (21) is fixedly connected to a mounting plate (22), the inner bottom surface of the mounting seat (21) is fixedly connected to a sleeve (23), the inner wall of the sleeve (23) is in contact with the piston A (18), the lower bottom surface of the mounting seat (21) is fixedly connected to an exhaust pipe (24), the mounting seat (21) is rotatably connected to a rotating disk (25), a through groove (26) is formed in the rotating disk (25), the lower bottom surface of the mounting seat (21) is threadedly connected to a liquid storage tube (28), and the outer surface of the piston B (19) is in contact with the inner wall of the liquid storage tube (28); A movable groove (212) is provided on one side of the mounting seat (21), a turning handle (27) is fixedly connected to one side of the rotating disk (25), the turning handle (27) is arranged in the movable groove (212), and an air hole (221) is provided on the mounting plate (22).

2. The pipette for Chinese medicine detection as claimed in claim 1, characterized in that: The grabbing assembly (3) comprises a mounting sleeve (31), the mounting sleeve (31) being sleeved on the outer surface of the pipetting housing (11), and the mounting sleeve (31) being a component made of rubber, and a groove (32) being provided on one side of the mounting sleeve (31).

3. The pipette for Chinese medicine detection as claimed in claim 1, characterized in that: The inner wall of the pipetting housing (11) is fixedly connected with a fixing column (111), two groups of the fixing columns (111) are provided and symmetrically installed, a guide groove (153) is provided on the push switch (15), and the outer surface of the fixing column (111) is slidably connected to the guide groove (153).

4. The pipette for Chinese medicine detection as claimed in claim 1, characterized in that: The baffle (12) is not connected to the upper end of the sleeve (23) and there is a gap between them, thereby forming a cavity between the transfer housing (11) and the piston A (18).

5. The pipette for Chinese medicine detection as claimed in claim 1, characterized in that: A buffer pad (151) is fixedly connected to the upper surface of the push switch (15), and the buffer pad (151) is a component made of rubber. An anti-slip groove is provided on the buffer pad (151).

6. The pipette for Chinese medicine detection as claimed in claim 1, characterized in that: The liquid storage tube (28) is provided with an air guide groove (281).

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