CN209854155U - Pipettor for microbial cultivation detection - Google Patents
Pipettor for microbial cultivation detection Download PDFInfo
- Publication number
- CN209854155U CN209854155U CN201920515662.0U CN201920515662U CN209854155U CN 209854155 U CN209854155 U CN 209854155U CN 201920515662 U CN201920515662 U CN 201920515662U CN 209854155 U CN209854155 U CN 209854155U
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- Prior art keywords
- liquid storage
- transparent liquid
- pipette
- movable rod
- storage pipe
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Abstract
A pipettor for microbial culture detection comprises a transparent liquid storage pipe, a first connecting piece, a pipette, a movable rod, a piston, an elastic piece, a limiting piece, a locking piece, a guide rod, a connecting rod and a second connecting piece; the first connecting piece is arranged on the transparent liquid storage pipe; the pipette is arranged on the first connecting piece; the transparent liquid storage pipe is provided with scale marks; the piston is arranged in the transparent liquid storage pipe and is connected with the movable rod; the movable rod is connected with the limiting part; the locking piece is in threaded connection with the movable rod; the elastic piece is vertically sleeved on the peripheral surface of the movable rod and is positioned in the transparent liquid storage pipe; the elastic piece is connected with the transparent liquid storage tube and the piston; the connecting rod is connected with the guide rod; the guide rod is inserted with the transparent liquid storage pipe; the second connecting piece is arranged on the transparent liquid storage pipe. The utility model discloses can tightly hold the pipettor, avoid moving the liquid in-process and lead to it to drop because of not holding the pipettor tightly, move the relevant operation of liquid in-process comparatively stable, conveniently control the volume of extraction and output solution, easy and simple to handle, the leakproofness is better.
Description
Technical Field
The utility model relates to a microbial cultivation detects technical field, especially relates to a microbial cultivation detects uses pipettor.
Background
The microorganism includes a large biological population including bacteria, viruses, fungi, some small protists, microscopic algae and the like, the individual is tiny, the biological population is closely related to human beings, the biological population covers various beneficial and harmful varieties, and the biological population widely relates to various fields such as food, medicine, industry and agriculture, environmental protection, sports and the like, when the microorganism is cultured, a solution containing the microorganism in a culture dish is often required to be subjected to related detection, when the microorganism is detected, a liquid transfer operation is often required to be performed, the liquid transfer operation is generally completed through a liquid transfer device, the liquid transfer device is a device which can be widely applied when the analysis and the test are performed in the fields such as biology, chemistry and the like, and the liquid transfer device is mainly used for quantitatively transferring liquid;
the existing pipettor has many defects, such as difficult to tightly hold the pipettor and easy to cause the pipettor to fall and break, difficult to control the volume of the extracted and output solution, inconvenient operation and poor stability in the operation process.
Disclosure of Invention
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a pipettor is used in microbial cultivation detects can tightly hold the pipettor, avoids moving the liquid in-process and leads to it to drop because of not holding the pipettor tightly, moves the relevant operation of liquid in-process comparatively stably, conveniently controls the volume of extraction and output solution, and is easy and simple to handle, and the leakproofness is better.
(II) technical scheme
In order to solve the problems, the utility model provides a pipettor for microorganism culture detection, which comprises a transparent liquid storage pipe, a first connecting piece, a pipette, a movable rod, a piston, an elastic piece, a limiting piece, a locking piece, a guide rod, a connecting rod and a second connecting piece;
the first connecting piece is arranged on the transparent liquid storage pipe; the pipette is arranged on the first connecting piece; the first connecting piece is communicated with the transparent liquid storage pipe and the liquid suction pipe; the transparent liquid storage pipe is provided with scale marks;
the piston is arranged in the transparent liquid storage pipe in a sliding manner and is connected with the movable rod; the bottom of the piston is provided with a sealing element matched with the first connecting piece;
the transparent liquid storage pipe is provided with an opening for the movable rod to pass through; the movable rod is vertically arranged, and one end, far away from the piston, of the movable rod penetrates through the transparent liquid storage pipe and is connected with the limiting piece; the movable rod is provided with external threads, and the locking part is positioned above the opening and is in threaded connection with the movable rod; the diameter of the locking piece is larger than that of the opening; the elastic piece is vertically sleeved on the peripheral surface of the movable rod and is positioned in the transparent liquid storage pipe; the top end of the elastic part is connected with the transparent liquid storage pipe, and the bottom end of the elastic part is connected with the piston;
the connecting rod is horizontally arranged on the movable rod, and one end of the connecting rod, which is far away from the movable rod, is connected with the guide rod; a guide groove is vertically arranged on the transparent liquid storage pipe, and the guide rod extends into the guide groove and is inserted into the transparent liquid storage pipe;
the second connecting piece is vertically arranged on the transparent liquid storage pipe, and a through hole for fingers to pass through is formed in the second connecting piece.
Preferably, the first connecting piece is provided with an internal thread, the pipette is provided with an external thread, and the first connecting piece is in threaded connection with the pipette.
Preferably, the bottom end in the transparent liquid storage pipe is of a funnel-shaped structure, and the piston is in a circular truncated cone shape matched with the transparent liquid storage pipe.
Preferably, the outer peripheral surface of the piston is provided with a sealing ring which is abutted against the inner wall of the transparent liquid storage pipe.
Preferably, the seal ring is made of a wear-resistant rubber material.
Preferably, the stopper is a tab.
Preferably, the locking member is a nut.
Preferably, the number of the through holes is four, and the through holes are arranged at equal intervals in the vertical direction.
Preferably, the second connecting piece is provided with a protective layer, and the protective layer is positioned in the through hole.
Preferably, the protective layer is made of latex material, and the surface of the protective layer is provided with anti-skid threads.
The above technical scheme of the utility model has following profitable technological effect:
when the liquid storage device is used, the thumb is placed on the transparent liquid storage tube, the other four fingers penetrate through the through hole in the second connecting piece, the liquid transfer device can be tightly held, the related operation in the liquid transfer process is facilitated, and the situation that the liquid transfer device falls and is broken due to the fact that the liquid transfer device is not held tightly in the liquid transfer process can be avoided;
the limiting part is pulled to further enable the movable rod to drive the piston to vertically move upwards, the solution with the microorganisms in the culture dish is pumped into the transparent liquid storage pipe, the volume of the solution in the transparent liquid storage pipe can be known at any time through the scale marks, the solution with the corresponding volume can be pumped as required, and the operation is simple and convenient;
the movable rod is kept still, the locking piece is rotated to vertically move downwards and tightly press the transparent liquid storage pipe, and the locking piece not only plays a role in fixing the movable rod, but also plays a role in sealing the opening; the locking piece is rotated at a constant speed according to the volume of the solution required by detection, the elastic piece is reset, the movable rod moves vertically downwards at a constant speed, the piston pushes out the solution, the pipetting operation is completed, and the amount of the pumped solution is conveniently controlled;
the sealing element is arranged, so that the sealing element is inserted into the first connecting element, the complete output of the solution is facilitated, and the sealing effect on the transparent liquid storage pipe is also achieved; the connecting rod drives the guide bar and slides in the guide way, and the guide bar plays the guide effect, can avoid the movable rod to rotate, and move the relevant operation of liquid in-process comparatively stable.
Drawings
Fig. 1 is a schematic structural diagram of a pipette for detecting and culturing microorganisms according to the present invention.
Fig. 2 is a front view of the pipette for detecting and culturing microorganisms according to the present invention.
Reference numerals: 1. a transparent liquid storage tube; 2. a first connecting member; 3. a pipette; 4. a movable rod; 5. a piston; 6. a seal member; 7. an elastic member; 8. a limiting member; 9. a locking member; 10. a guide bar; 11. a connecting rod; 12. a second connecting member; 13. a through hole; 14. a protective layer; 15. scale lines; 16. and (4) opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the utility model provides a pipettor for microorganism culture detection, which comprises a transparent liquid storage tube 1, a first connecting member 2, a pipette 3, a movable rod 4, a piston 5, an elastic member 7, a limiting member 8, a locking member 9, a guide rod 10, a connecting rod 11 and a second connecting member 12;
the first connecting piece 2 is arranged on the transparent liquid storage pipe 1; the pipette 3 is provided on the first connector 2; the first connecting piece 2 is communicated with the transparent liquid storage pipe 1 and the liquid suction pipe 3; the transparent liquid storage tube 1 is provided with scale marks 15;
the piston 5 is arranged in the transparent liquid storage pipe 1 in a sliding way and is connected with the movable rod 4; the bottom of the piston 5 is provided with a sealing element 6 matched with the first connecting element 2;
the transparent liquid storage tube 1 is provided with an opening 16 for the movable rod 4 to pass through; the movable rod 4 is vertically arranged, and one end far away from the piston 5 penetrates through the transparent liquid storage pipe 1 and is connected with the limiting piece 8; the movable rod 4 is provided with external threads, and the locking part 9 is positioned above the opening 16 and is in threaded connection with the movable rod 4; the diameter of the retaining member 9 is greater than the diameter of the opening 16; the size of the limiting piece 8 is larger than the diameter of the locking piece 9; the elastic piece 7 is vertically sleeved on the peripheral surface of the movable rod 4 and is positioned in the transparent liquid storage pipe 1; the top end of the elastic piece 7 is connected with the transparent liquid storage pipe 1, and the bottom end is connected with the piston 5;
the connecting rod 11 is horizontally arranged on the movable rod 4, and one end far away from the movable rod 4 is connected with the guide rod 10; a guide groove is vertically arranged on the transparent liquid storage tube 1, and the guide rod 10 extends into the guide groove and is inserted into the transparent liquid storage tube 1;
the second connecting piece 12 is vertically arranged on the transparent liquid storage pipe 1, and a through hole 13 for fingers to pass through is arranged on the second connecting piece 12; the number of the through holes 13 is four, and the through holes are arranged at equal intervals in the vertical direction.
In an alternative embodiment, the first connecting member 2 is provided with an internal thread, the pipette 3 is provided with an external thread, the first connecting member 2 is in threaded connection with the pipette 3, and the pipette 3 can be mounted and dismounted by rotating the pipette 3, so that the pipette 3 can be replaced conveniently.
In an optional embodiment, the bottom end inside the transparent liquid storage tube 1 is of a funnel-shaped structure, and the piston 5 is in a truncated cone shape matched with the transparent liquid storage tube 1, so that the liquid in the transparent liquid storage tube 1 can be completely output to the liquid suction tube 3.
In an optional embodiment, the outer peripheral surface of the piston 5 is provided with a sealing ring, the sealing ring abuts against the inner wall of the transparent liquid storage pipe 1, and the sealing ring is made of wear-resistant rubber materials, so that the sealing performance of the piston 5 can be improved, and liquid is prevented from entering the upper part of the piston 5.
In an alternative embodiment, the limiting member 8 is a pull ring, which facilitates pulling the movable rod 4 and also facilitates hanging the pipette.
In an alternative embodiment, the locking member 9 is a nut.
In an alternative embodiment, the second connecting member 12 is provided with a protective layer 14, the protective layer 14 is located in the through hole 13, the protective layer 14 is made of latex material, the surface of the protective layer 14 is provided with anti-slip threads, and the protective layer 14 has elasticity and good flexibility and plays a role in protection and anti-slip.
In the utility model, when in use, the thumb is placed on the transparent liquid storage tube 1, and the other four fingers pass through the through holes 13 on the second connecting piece 12, so that the pipettor can be tightly held, the related operation in the pipetting process is convenient to carry out, and the condition that the pipettor falls and is damaged due to the fact that the pipettor is not held tightly in the pipetting process can be avoided;
the bottom end of the pipette 3 is inserted into a culture dish for culturing microorganisms, the limiting part 8 is pulled upwards, the movable rod 4 drives the piston 5 to move vertically upwards, the solution with the microorganisms in the culture dish is pumped into the transparent liquid storage pipe 1, the volume of the solution in the transparent liquid storage pipe 1 can be known at any time through the scale mark 15, the solution with the corresponding volume can be pumped as required, and the operation is simple and convenient; when liquid is pumped, the locking piece 9 moves upwards along with the movable rod 4, after the liquid is pumped, the movable rod 4 is kept still, the locking piece 9 is rotated to vertically move downwards and press the transparent liquid storage tube 1, and the locking piece 9 not only plays a role in fixing the movable rod 4, but also plays a role in sealing the opening 16;
when the solution is pumped into the detection device, the locking member 9 is rotated at a constant speed according to the volume of the solution required by detection, the elastic member 7 is reset, the movable rod 4 is further enabled to move vertically downwards at a constant speed, the piston 5 pushes out the solution, the pipetting operation is completed, and the amount of the pumped solution is conveniently controlled; the sealing element 6 is arranged, so that the sealing element 6 is inserted into the first connecting element 2, the complete output of the solution is facilitated, and the sealing effect on the transparent liquid storage pipe 1 is also realized;
connecting rod 11 drives guide bar 10 and slides in the guide way, and guide bar 10 plays the guide effect, can avoid movable rod 4 to rotate, and the relevant operation of moving the liquid in-process is comparatively stable.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A pipette for microbial culture detection is characterized by comprising a transparent liquid storage pipe (1), a first connecting piece (2), a liquid suction pipe (3), a movable rod (4), a piston (5), an elastic piece (7), a limiting piece (8), a locking piece (9), a guide rod (10), a connecting rod (11) and a second connecting piece (12);
the first connecting piece (2) is arranged on the transparent liquid storage pipe (1); the pipette (3) is arranged on the first connecting piece (2); the first connecting piece (2) is communicated with the transparent liquid storage pipe (1) and the liquid suction pipe (3); the transparent liquid storage tube (1) is provided with scale marks (15);
the piston (5) is arranged in the transparent liquid storage pipe (1) in a sliding way and is connected with the movable rod (4); the bottom of the piston (5) is provided with a sealing element (6) matched with the first connecting piece (2);
an opening (16) for the movable rod (4) to pass through is arranged on the transparent liquid storage tube (1); the movable rod (4) is vertically arranged, and one end, far away from the piston (5), of the movable rod penetrates through the transparent liquid storage pipe (1) and is connected with the limiting piece (8); the movable rod (4) is provided with external threads, and the locking part (9) is positioned above the opening (16) and is in threaded connection with the movable rod (4); the diameter of the locking piece (9) is larger than that of the opening (16); the elastic piece (7) is vertically sleeved on the peripheral surface of the movable rod (4) and is positioned in the transparent liquid storage pipe (1); the top end of the elastic piece (7) is connected with the transparent liquid storage pipe (1), and the bottom end is connected with the piston (5);
the connecting rod (11) is horizontally arranged on the movable rod (4), and one end far away from the movable rod (4) is connected with the guide rod (10); a guide groove is vertically arranged on the transparent liquid storage pipe (1), and the guide rod (10) extends into the guide groove and is inserted into the transparent liquid storage pipe (1);
the second connecting piece (12) is vertically arranged on the transparent liquid storage pipe (1), and a through hole (13) for fingers to pass through is formed in the second connecting piece (12).
2. The pipette for detecting and culturing microorganisms according to claim 1, wherein the first connector (2) is provided with an internal thread, the pipette (3) is provided with an external thread, and the first connector (2) is screwed with the pipette (3).
3. The pipette for detecting and culturing microorganisms according to claim 1, wherein the bottom end inside the transparent liquid storage tube (1) is funnel-shaped, and the piston (5) is truncated cone-shaped and matched with the transparent liquid storage tube (1).
4. The pipette for detecting and culturing microorganisms according to claim 1, wherein a sealing ring is arranged on the outer circumferential surface of the piston (5) and abuts against the inner wall of the transparent liquid storage tube (1).
5. The pipette according to claim 4, wherein the seal ring is made of an abrasion-resistant rubber material.
6. The pipette for detecting a microorganism culture according to claim 1, wherein the stopper (8) is a pull ring.
7. The pipette for detecting microorganism culture according to claim 1, wherein the locking member (9) is a nut.
8. The pipette for detecting culture of microorganisms according to claim 1, wherein the number of the through holes (13) is four and the through holes are arranged at equal intervals in the vertical direction.
9. The pipette for detecting and culturing microorganisms according to claim 1, wherein the second connector (12) is provided with a protective layer (14), and the protective layer (14) is located in the through hole (13).
10. The pipette for detecting microorganism culture according to claim 9, wherein the protective layer (14) is made of a latex material and has a surface provided with an anti-slip thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515662.0U CN209854155U (en) | 2019-04-16 | 2019-04-16 | Pipettor for microbial cultivation detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515662.0U CN209854155U (en) | 2019-04-16 | 2019-04-16 | Pipettor for microbial cultivation detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209854155U true CN209854155U (en) | 2019-12-27 |
Family
ID=68937840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920515662.0U Expired - Fee Related CN209854155U (en) | 2019-04-16 | 2019-04-16 | Pipettor for microbial cultivation detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209854155U (en) |
-
2019
- 2019-04-16 CN CN201920515662.0U patent/CN209854155U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20210416 |