CN208049957U - A kind of trace upper sample pipetting gun head - Google Patents
A kind of trace upper sample pipetting gun head Download PDFInfo
- Publication number
- CN208049957U CN208049957U CN201820284469.6U CN201820284469U CN208049957U CN 208049957 U CN208049957 U CN 208049957U CN 201820284469 U CN201820284469 U CN 201820284469U CN 208049957 U CN208049957 U CN 208049957U
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- liquid
- gun head
- connection structure
- upper sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of trace upper sample pipetting gun head, including sequentially connected pipette, liquid storage pipe and connecting tube, and the internal diameter of the connecting tube is more than the internal diameter of liquid storage pipe；The connecting tube is internally provided with gear liquid piston, the gear liquid piston slidingly and sealingly coordinates with connecting tube, it is provided with connecting rod on the gear liquid piston, the connecting rod is extended to from the port of connecting tube outside connecting tube, and connecting rod extends to the end set outside connecting tube and has the first connection structure, the end set of the connecting tube to have the second connection structure.By increasing a piston in connecting tube, plays the role of stopping that reagent flows into liquid-transfering gun, to prevent reagent cross contamination, improve the leakproofness of pipette tips.
Description
Technical field
The utility model is related to field of medical products, especially a kind of trace upper sample pipetting gun head.
Background technology
Liquid transfer gun head is in a kind of prodigious consumptive material of the fields usage amount such as medical treatment, biology, chemistry, and cooperation liquid-transfering gun uses,
Play the role of quantitative measurement liquid, the operation principle of liquid-transfering gun is very simple --- made on piston by the flexible strength of spring
Lower activity, discharge or absorption liquid.
Existing liquid transfer gun head can refer to application No. is 201320038685.X, 201410544145.8,
201620497720.8 utility model patent, at present the main problem of liquid transfer gun head be with the leakproofness of liquid-transfering gun junction not
By force, the substance in pipette tips, which is easily accessible in liquid-transfering gun, leads to cross contamination, these above-mentioned liquid transfer gun heads still exist certain
Defect is susceptible to the case where reagent mutually pollutes.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of better tightness, to prevent reagent from mutually polluting micro-
Measure loading liquid transfer gun head.
Technical solution adopted by the utility model to solve its technical problems is：A kind of trace upper sample pipetting gun head, including
Sequentially connected pipette, liquid storage pipe and connecting tube, the internal diameter of the connecting tube are more than the internal diameter of liquid storage pipe；The connecting tube
It is internally provided with gear liquid piston, the gear liquid piston slidingly and sealingly coordinates with connecting tube, the company of being provided on the gear liquid piston
Extension bar, the connecting rod are extended to from the port of connecting tube outside connecting tube, and connecting rod extends to the end set outside connecting tube
The end set of one connection structure, the connecting tube has the second connection structure.
Further, first connection structure includes connector sleeve, and the inner wall of the connector sleeve is provided with internal thread, described
Second connection structure is to be set to the external screw thread of connection pipe outer wall.
Further, the inner wall of the connecting tube is provided with thread-off proof ring-shaped baffle.
Further, the pipette, liquid storage pipe and connecting tube are integrally formed.
The utility model has the beneficial effects that：By increasing a piston in connecting tube, plays blocking reagent and flow into shifting
Effect in liquid rifle improves the leakproofness of pipette tips to prevent reagent cross contamination.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model trace upper sample pipetting gun head；
Fig. 2 is the connection diagram of the utility model trace upper sample pipetting gun head and liquid-transfering gun.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 2, a kind of trace upper sample pipetting gun head of the utility model, including sequentially connected pipette 1,
Liquid storage pipe 2 and connecting tube 3, pipette 1 is tapered, and for drawing reagent, liquid storage pipe 2 is for quantitatively storing reagent, connecting tube 3
For being connected with liquid-transfering gun 10, in order to ensure that the intensity and leakproofness of liquid transfer gun head, pipette 1, liquid storage pipe 2 and connecting tube 3 are adopted
It is integrally formed with stainless steel.The connecting tube 3 is internally provided with gear liquid piston 4, and the gear liquid piston 4 is slided with connecting tube 3
And sealing cooperation, play the role of stopping reagent, can prevent the reagent in sampling from flowing into liquid-transfering gun by connecting tube 3.The company
The internal diameter of take over 3 is more than the internal diameter of liquid storage pipe 2, can avoid gear liquid piston 4 and enters liquid storage pipe 2.It is provided on the gear liquid piston 4
Connecting rod 5, the connecting rod 5 are extended to from the port of connecting tube 3 outside connecting tube 3, and connecting rod 5 extends to the end outside connecting tube 3
It is provided with the first connection structure, in use, connecting rod 5 is connected by the first connection structure with the power piston 11 of liquid-transfering gun 10,
Play the role of transmission, in this way when the powered power piston 11 of liquid-transfering gun 10 moves, power piston 11 can pass through company
Extension bar 5 drives gear liquid piston 4 to move, to which reagent is sucked liquid storage pipe 2.The end set of the connecting tube 3 has the second connection
Structure, the second connection structure are connected with liquid-transfering gun 10, enhance bonding strength.
First connection structure includes connector sleeve 6, and the inner wall of the connector sleeve 6 is provided with internal thread, and described second connects
Binding structure is the external screw thread for being set to 3 outer wall of connecting tube.Meanwhile being provided with drive link on the power piston of liquid-transfering gun 10 11
12, the end set external screw thread of drive link 12 installs this micro loading since gear liquid piston 4 and connecting rod 5 can move axially
When liquid transfer gun head, can first be rotatably connected bar 5, connector sleeve 6 be connect by screw thread with drive link 12, then the pipe 3 that is rotatably connected, will even
Take over 3 links together with liquid-transfering gun 10.
The inner wall of the connecting tube 3 is provided with thread-off proof ring-shaped baffle 7, and anti-backstop liquid piston 4 enters liquid-transfering gun from connecting tube 3
10。
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of trace upper sample pipetting gun head, including sequentially connected pipette (1), liquid storage pipe (2) and connecting tube (3), special
Sign is：The internal diameter of the connecting tube (3) is more than the internal diameter of liquid storage pipe (2)；The gear liquid that is internally provided with of the connecting tube (3) is lived
It fills in (4), the gear liquid piston (4) slidingly and sealingly coordinates with connecting tube (3), and connecting rod is provided on the gear liquid piston (4)
(5), the connecting rod (5) extends to connecting tube (3) outside from the port of connecting tube (3), and connecting rod (5) extends to connecting tube (3) outside
End set there is the first connection structure, the end set of the connecting tube (3) to have the second connection structure.
2. a kind of trace upper sample pipetting gun head as described in claim 1, it is characterised in that：First connection structure includes connecting
The inner wall of female connector (6), the connector sleeve (6) is provided with internal thread, and second connection structure is to be set to connecting tube (3) outer wall
External screw thread.
3. a kind of trace upper sample pipetting gun head as claimed in claim 1 or 2, it is characterised in that：The inner wall of the connecting tube (3)
It is provided with thread-off proof ring-shaped baffle (7).
4. a kind of trace upper sample pipetting gun head as described in claim 1, it is characterised in that：The pipette (1), liquid storage pipe
(2) it is integrally formed with connecting tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284469.6U CN208049957U (en) | 2018-02-28 | 2018-02-28 | A kind of trace upper sample pipetting gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284469.6U CN208049957U (en) | 2018-02-28 | 2018-02-28 | A kind of trace upper sample pipetting gun head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208049957U true CN208049957U (en) | 2018-11-06 |
Family
ID=63990813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820284469.6U Expired - Fee Related CN208049957U (en) | 2018-02-28 | 2018-02-28 | A kind of trace upper sample pipetting gun head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208049957U (en) |
-
2018
- 2018-02-28 CN CN201820284469.6U patent/CN208049957U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200723 Address after: 8 No. 450000 Henan province Zhengzhou city Xinzheng town Longhu Shuanghu Road Patentee after: HENAN MEDICAL College Address before: 450000 No. 328, Shuang Hu Development Zone, Longhu Town, Xinzheng City, Zhengzhou, Henan. Patentee before: Shi Ke |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20210228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |