Quantitative serum transfer pipette

Abstract

The utility model discloses a quantitative serum transfer pipette, which relates to the technical field of experimental instruments, and adopts the technical scheme that the quantitative serum transfer pipette comprises a transfer pipette body, the interior of the transfer pipette body is used for storing serum, and the whole transfer pipette body is of a cylinder structure made of a transparent material; a suction assembly and a cleaning assembly are arranged in the pipette body, the suction assembly comprises a first knob, the first knob is arranged on one side of the pipette body, a cap is arranged on one side of the first knob and is in threaded connection with the pipette body, a threaded rod is fixedly arranged on one side of the first knob, and a supporting shell is fixedly arranged on one side of the threaded rod; the outer portion of the supporting shell is fixedly sleeved with a rubber plug, the inner wall of the transfer pipette body is brushed through the side bristles, the bottom of an inner cavity of the transfer pipette body is rotationally cleaned through the rotating scraper, the suction nozzle is cleaned through rotating movement of the long bristles, the cleaning efficiency of the transfer pipette body and the suction nozzle is improved, and follow-up use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to a quantitative serum pipette. Background Art

[0002] A pipette is a measuring instrument used to accurately transfer a certain volume of solution. A pipette is a measuring instrument that is only used to measure the volume of the solution it releases. It is a slender glass tube with a bulge in the middle. Its lower end is pointed and there is a marking line engraved on the upper neck of the tube, which is a mark of the exact volume transferred.

[0003] The existing Chinese patent (publication number: CN213493788U) discloses a self-priming quantitative serum pipette, which includes a tube body mechanism and a self-priming mechanism. The tube body mechanism includes a pipette body and a cap, the outer surface of the pipette body is provided with an external thread, the inner side of the cap is provided with an internal thread, the pipette body and the cap are threadedly connected, and one side of the cap is provided with a threaded hole, and the self-priming mechanism includes a threaded rod, a handle, a connecting assembly, a first sealing plug, a support rod and a second sealing plug, the threaded rod is threadedly connected with the threaded hole, and the handle is connected to one end of the threaded rod. The utility model achieves the purpose of facilitating the replacement of the rubber plug through the functions of the handle, the threaded rod, the connecting assembly, the first sealing plug, the support rod, the second sealing plug, the cap and the pipette body, and the rubber plug is easy to replace. At the same time, the setting of the double rubber plug improves the suction effect and can make the suction volume more accurate. In the above patent, it is inconvenient to clean the inner wall of the pipette, which affects the next use of the pipette, especially the pipette nozzle is difficult to clean. Utility Model Content

[0004] To this end, the utility model provides a quantitative serum pipette to solve the problem that the inner wall of the pipette is inconvenient to clean, which affects the next use of the pipette, especially the problem that the pipette nozzle is difficult to clean.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a quantitative serum pipette, comprising a pipette body, the interior of which is used to store serum, and the whole is a cylindrical structure made of transparent material;

[0006] A suction component and a cleaning component are provided inside the pipette body, and the suction component includes a first knob, which is provided on one side of the pipette body, a cap is provided on one side of the first knob, and the cap is connected to the pipette body through a threaded connection, a threaded rod is fixedly provided on one side of the first knob, a support shell is fixedly provided on one side of the threaded rod, and a rubber plug is fixedly provided on the outside of the support shell.

[0007] Preferably, the cleaning component includes a second knob, which is arranged on one side of the first knob, and a sleeve is fixedly provided on one side of the second knob, and the sleeve passes through the threaded rod, and the sleeve and the threaded rod are connected by a thread, and a fixed plate is fixedly connected to one side of the sleeve, and the fixed plate and the support shell are connected by a thread, and a plurality of groups of side bristles are provided on the outside of the fixed plate.

[0008] Preferably, a plurality of scrapers are provided on one side of the fixed disk.

[0009] Preferably, a connecting pipe is fixedly connected to one side of the sleeve, and a plurality of water injection ports are provided on the outside of the sleeve.

[0010] Preferably, a third knob is provided on one side of the second knob, and a connecting rod is fixedly connected to one side of the third knob. The connecting rod passes through the sleeve and is threadedly connected to the sleeve connection. One end of the connecting rod is fixedly connected to a threaded disk, and the threaded disk is threadedly connected to the fixed disk. A plurality of groups of long bristles are provided on the outside of the connecting rod.

[0011] Preferably, a ruler is fixedly provided on one side of the pipette body, and the indication of the ruler corresponds to the volume of the corresponding position of the pipette body.

[0012] Preferably, a suction nozzle is fixedly connected to one side of the pipette body.

[0013] Preferably, the rubber stopper is in contact with the inner wall of the pipette body.

[0014] Preferably, the scraper is made of silicone material.

[0015] The utility model embodiment has the following advantages:

[0016] The water source is connected through the connecting pipe, and water enters the sleeve through the connecting pipe and is sprayed out through the water injection port. The water is sprayed on the inner wall of the pipette body, and the side bristles and the scraper are driven to rotate through the fixed plate, so that the side bristles brush the inner wall of the pipette body, thereby cleaning the dried and agglomerated serum blocks on the inner wall, and the rotating scraper rotates and cleans the bottom of the inner cavity of the pipette body. The connecting rod moves and rotates at the same time, so that the threaded disk and the long bristles pass through the suction nozzle, and the suction nozzle is cleaned by the long bristles, thereby improving the cleaning efficiency of the pipette body and the suction nozzle, which is convenient for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 The overall structural diagram provided by the utility model;

[0020] Figure 2 A sectional view of the overall structure provided by the utility model;

[0021] Figure 3 A three-dimensional diagram of the suction assembly provided by the utility model;

[0022] Figure 4 A three-dimensional diagram of the cleaning component provided by the utility model;

[0023] Figure 5 The utility model provides Figure 2 A magnified view of the structure of the middle part A;

[0024] Figure 6 The utility model provides Figure 4 A magnified view of the structure of the middle B section;

[0025] Figure 7 The utility model provides Figure 4 Enlarged view of the structure of section C.

[0026] In the figure: 1. pipette body; 101. nozzle; 102. cap; 103. first knob; 104. threaded rod; 105. rubber stopper; 106. support shell; 2. second knob; 201. sleeve; 202. connecting tube; 203. scraper; 204. fixing disk; 205. side bristles; 206. water inlet; 3. third knob; 301. connecting rod; 302. threaded disk; 303. long bristles; 4. ruler. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0028] See attached Figure 1 -Attached Figure 7 The utility model provides a quantitative serum pipette, comprising a pipette body 1, the interior of which is used to store serum, and the whole is a cylindrical structure made of a transparent material;

[0029] The pipette body 1 is provided with a suction component and a cleaning component inside, the suction component includes a first knob 103, the first knob 103 is provided on one side of the pipette body 1, a cap 102 is provided on one side of the first knob 103, the cap 102 is connected to the pipette body 1 through a thread, a threaded rod 104 is fixedly provided on one side of the first knob 103, a support shell 106 is fixedly provided on one side of the threaded rod 104, a rubber plug 105 is fixedly sleeved on the outside of the support shell 106, a suction nozzle 101 is fixedly connected to one side of the pipette body 1, and the rubber plug 105 is in contact with the inner wall of the pipette body 1;

[0030] In this embodiment, there is a distance between the rubber stopper 105 and the suction nozzle 101 to prevent the serum liquid from contacting the rubber stopper 105. By rotating the first knob 103, the first knob 103 drives the threaded rod 104 to rotate, the threaded rod 104 drives the support shell 106 to rotate, and the support shell 106 drives the rubber stopper 105 to rotate, so that the rubber stopper 105 rotates and moves upward, and negative pressure is formed inside the pipette body 1, so that the serum is sucked into the pipette body 1 through the suction nozzle 101 to complete the pipetting work;

[0031] Among them, in order to achieve the purpose of cleaning, the present device is implemented by the following technical solutions: the cleaning component includes a second knob 2, the second knob 2 is arranged on one side of the first knob 103, a sleeve 201 is fixedly provided on one side of the second knob 2, the sleeve 201 passes through the threaded rod 104, the sleeve 201 is connected to the threaded rod 104 by a threaded connection, a fixed disk 204 is fixedly connected to one side of the sleeve 201, the fixed disk 204 is connected to the support shell 106 by a threaded connection, a plurality of groups of side bristles 205 are arranged on the outside of the fixed disk 204, a plurality of scrapers 203 are arranged on one side of the fixed disk 204, a connecting pipe 202 is fixedly connected to one side of the sleeve 201, a plurality of water injection ports 206 are opened on the outside of the sleeve 201, and the scraper 203 is made of silicone material. By rotating the second Knob 2, the second knob 2 drives the sleeve 201 to rotate, and the sleeve 201 drives the fixed disk 204 to rotate, so that the fixed disk 204 leaves the supporting shell 106. At this time, the sleeve 201 and the threaded rod 104 are no longer threadedly connected at the connection point, and the water source is connected through the connecting pipe 202. The water enters the sleeve 201 through the connecting pipe 202 and is sprayed out through the water injection port 206. The water is sprayed on the inner wall of the pipette body 1. By pushing and rotating the sleeve 201, the sleeve 201 drives the fixed disk 204 to rotate, and the fixed disk 204 drives the side bristles 205 and the scraper 203 to rotate, so that the side bristles 205 brush the inner wall of the pipette body 1, thereby cleaning the dried and agglomerated serum blocks on the inner wall. After the fixed disk 204 moves to the bottom of the inner cavity of the pipette body 1, the rotating scraper 203 rotates and cleans the bottom of the inner cavity of the pipette body 1;

[0032] Among them, in order to achieve the purpose of cleaning the suction nozzle 101, the present device adopts the following technical solutions: a third knob 3 is provided on one side of the second knob 2, and a connecting rod 301 is fixedly connected to one side of the third knob 3, and the connecting rod 301 passes through the sleeve 201 and is connected to the sleeve 201 by a thread, and a threaded disk 302 is fixedly connected to one end of the connecting rod 301, and the threaded disk 302 is connected to the fixed disk 204 by a thread, and a plurality of groups of long bristles 303 are provided on the outside of the connecting rod 301, and the third knob 3 is rotated, and the third knob 3 drives the connecting rod 301 to rotate, and the connecting rod 301 drives the threaded disk 302 to rotate, and the threaded disk 302 leaves the connection with the fixed disk 204, and the connection between the connecting rod 301 and the sleeve 201 is no longer threaded, and the connecting rod 301 moves and rotates at the same time, so that the threaded disk 302 and the long bristles 303 pass through the suction nozzle 101, and the suction nozzle 101 is cleaned by the long bristles 303;

[0033] Among them, in order to achieve the purpose of quantification, the present device adopts the following technical solution: a ruler 4 is fixedly provided on one side of the pipette body 1, and the reading of the ruler 4 corresponds to the volume of the corresponding position of the pipette body 1, which is convenient for quantitative suction.

[0034] The use process of the utility model is as follows: when using the utility model, when sucking, there is a distance between the rubber stopper 105 and the suction nozzle 101 to avoid the contact between the serum liquid and the rubber stopper 105, by turning the first knob 103, the first knob 103 drives the threaded rod 104 to rotate, the threaded rod 104 drives the support shell 106 to rotate, the support shell 106 drives the rubber stopper 105 to rotate, so that the rubber stopper 105 rotates and moves upward, and a negative pressure is formed inside the pipette body 1, so that the serum is sucked into the pipette body 1 through the suction nozzle 101 to complete the pipetting work, when the inner wall of the pipette body 1 needs to be cleaned, by turning the second knob 2, the second knob 2 drives the sleeve 201 to rotate, the sleeve 201 drives the fixed disk 204 to rotate, so that the fixed disk 204 leaves the supporting shell 106, at this time, the sleeve 201 and the threaded rod 104 are no longer threadedly connected at the connection, and the water source is connected through the connecting pipe 202, and the water enters the sleeve 201 through the connecting pipe 202 and is sprayed out through the water injection port 206, and the water is sprayed on On the inner wall of the pipette body 1, by pushing the rotating sleeve 201, the sleeve 201 drives the fixed disk 204 to rotate, and the fixed disk 204 drives the side bristles 205 and the scraper 203 to rotate, so that the side bristles 205 brush the inner wall of the pipette body 1, thereby cleaning the dried and agglomerated serum blocks on the inner wall. After the fixed disk 204 moves to the bottom of the inner cavity of the pipette body 1, the rotating scraper 203 rotates and cleans the bottom of the inner cavity of the pipette body 1, and then the third knob is turned. 3. The third knob 3 drives the connecting rod 301 to rotate, and the connecting rod 301 drives the threaded disk 302 to rotate. The threaded disk 302 leaves the connection with the fixed disk 204, and the connection between the connecting rod 301 and the sleeve 201 is no longer threadedly connected. The connecting rod 301 moves and rotates at the same time, so that the threaded disk 302 and the long bristles 303 pass through the suction nozzle 101, and the suction nozzle 101 is cleaned by the long bristles 303, thereby improving the cleaning efficiency of the pipette body 1 and the suction nozzle 101, and facilitating subsequent use.

[0035] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A quantitative serum pipette, characterized in that: include: The pipette body (1) is used to store serum and is a cylindrical structure made of transparent material. The pipette body (1) is provided with a suction component and a cleaning component inside, the suction component comprising a first knob (103), the first knob (103) being provided at one side of the pipette body (1), a cap (102) being provided at one side of the first knob (103), the cap (102) being connected to the pipette body (1) via a thread, a threaded rod (104) being fixedly provided at one side of the first knob (103), a support shell (106) being fixedly provided at one side of the threaded rod (104), and a rubber plug (105) being fixedly provided outside the support shell (106); The cleaning component comprises a second knob (2), the second knob (2) being arranged on one side of the first knob (103), a sleeve (201) being fixedly arranged on one side of the second knob (2), the sleeve (201) passing through the threaded rod (104), the sleeve (201) and the threaded rod (104) being connected via a thread, a fixed disk (204) being fixedly connected to one side of the sleeve (201), the fixed disk (204) and the support shell (106) being connected via a thread, and a plurality of groups of side bristles (205) being arranged on the outside of the fixed disk (204).

2. A quantitative serum pipette according to claim 1, characterized in that: A plurality of scrapers (203) are provided on one side of the fixed disk (204).

3. A quantitative serum pipette according to claim 1, characterized in that: A connecting pipe (202) is fixedly connected to one side of the sleeve (201), and a plurality of water injection ports (206) are provided on the outside of the sleeve (201).

4. A quantitative serological pipette according to claim 1, characterized in that: A third knob (3) is provided on one side of the second knob (2); a connecting rod (301) is fixedly connected to one side of the third knob (3); the connecting rod (301) passes through the sleeve (201) and is connected to the sleeve (201) via a thread; one end of the connecting rod (301) is fixedly connected to a threaded disk (302); the threaded disk (302) is connected to a fixed disk (204) via a thread; and a plurality of groups of long bristles (303) are provided on the outside of the connecting rod (301).

5. A quantitative serum pipette according to claim 1, characterized in that: A scale (4) is fixedly provided on one side of the pipette body (1), and the reading on the scale (4) corresponds to the volume of the corresponding position of the pipette body (1).

6. A quantitative serum pipette according to claim 1, characterized in that: A suction nozzle (101) is fixedly connected to one side of the pipette body (1).

7. A quantitative serum pipette according to claim 1, characterized in that: The rubber stopper (105) is in contact with the inner wall of the pipette body (1).

8. A quantitative serum pipette according to claim 2, characterized in that: The scraper (203) is made of silica gel.

Images