CN113262832A - Compatible sample introduction base rod structure - Google Patents
Compatible sample introduction base rod structure Download PDFInfo
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- CN113262832A CN113262832A CN202110534638.3A CN202110534638A CN113262832A CN 113262832 A CN113262832 A CN 113262832A CN 202110534638 A CN202110534638 A CN 202110534638A CN 113262832 A CN113262832 A CN 113262832A
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- China
- Prior art keywords
- sample
- base rod
- socket
- plug
- flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
Abstract
The invention discloses a compatible sample introduction base rod structure, which comprises a sample introduction base rod, a flanging pipeline and a plunger plug, wherein the sample introduction base rod is provided with a flange; the plunger plug is provided with a middle hole; the inside of the flanging pipeline is provided with a liquid inlet channel, and the lower end of the flanging pipeline is flanged outwards to form a flange; a socket for plugging a plunger plug or a short sample injection needle is formed in the tail end of the sample injection base rod, the middle part of the sample injection base rod penetrates through the flanging pipeline, and a flange at the lower end of the flanging pipeline is positioned at the bottom of the socket; the plunger plug is detachably inserted in the socket and compresses the flange to form sealing, and a middle hole of the plunger plug is communicated with the liquid inlet channel; and the outer wall of the tail end of the sample introduction base rod forms a joint for sealing and sleeving the gun head or the large-volume sample introduction seat. The invention has the characteristics of low cost and high compatibility, can be compatible with a gun head, a short sample injection needle and a large-volume sample injection needle, and realizes a one-needle three-mode.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to a compatible sample injection base rod structure.
Background
The existing sample injection kit is only provided with a plunger head on a common sample injection needle, the plunger head is hermetically sleeved with an inner O-shaped sealing ring and an outer O-shaped sealing ring for preventing liquid leakage, the plunger head is suitable for the condition of general volume sample injection, and when large-volume sample injection is needed, the O-shaped sealing ring can bubble a solvent during liquid suction, so that the O-shaped sealing ring is easily corroded, and the sealing effect is reduced; in addition, the front section of some sample injection needles is provided with a sealing thread, and a solvent is hung on the thread and is not easy to clean; in addition, the existing sample injection needle cannot be compatible with a gun head, and an obvious short plate exists in the actual use.
Disclosure of Invention
The invention aims to provide a compatible sample injection base rod structure which has the characteristics of low cost and high compatibility, can be compatible with a gun head, a short sample injection needle and a large-volume sample injection needle, and realizes a one-needle three-mode.
In order to achieve the above purpose, the solution of the invention is: a compatible sample introduction base rod structure comprises a sample introduction base rod, a flanging pipeline and a plunger plug;
the plunger plug is provided with a middle hole;
the inside of the flanging pipeline is provided with a liquid inlet channel, and the lower end of the flanging pipeline is flanged outwards to form a flange;
a socket for plugging a plunger plug or a short sample injection needle is formed in the tail end of the sample injection base rod, the middle part of the sample injection base rod penetrates through the flanging pipeline, and a flange at the lower end of the flanging pipeline is positioned at the bottom of the socket; the plunger plug is detachably inserted in the socket and compresses the flange to form sealing, and a middle hole of the plunger plug is communicated with the liquid inlet channel;
and the outer wall of the tail end of the sample introduction base rod forms a joint for sealing and sleeving the gun head or the large-volume sample introduction seat.
Furthermore, the top of short syringe is equipped with advances a kind plug, the plunger plug is followed advance a kind the terminal socket of base pole and dismantle the back, advance a kind plug and seal the grafting and be in the socket and compress tightly the flange and form sealedly.
Further, a gun head socket is arranged at the top end of the gun head, and the gun head socket is hermetically sleeved on a joint at the tail end of the sample injection base rod.
Further, the top of bulky appearance seat of advancing is equipped with advances kind socket, the end of bulky appearance seat of advancing is equipped with the bulky joint of connecting the bulky container, advance kind socket seal cover and connect advance kind on the terminal joint of base rod.
Furthermore, the sealing sleeve joint is that an O-shaped sealing ring is sleeved on a joint at the tail end of the sample introduction base rod.
Further, the outer portion of the plunger plug forms a flange, the diameter of which is greater than the diameter of the socket.
Further, an internal thread matched with the external thread is formed in the socket, and the plunger plug and the plug of the short sample injection needle both form the external thread.
After the scheme is adopted, the gain effect of the invention is as follows:
the invention has substantial difference from the traditional sample injection needle, because the traditional sample injection needle is integrally designed with a needle head, other needle heads are difficult to carry on the traditional sample injection needle, the invention particularly designs a sample injection base rod which can carry different needle heads, the invention is compatible with three needle heads, namely a gun head, a short sample injection needle and a large-volume sample injection seat, the short sample injection needle is a sample injection needle head with short size, and is suitable for sample injection of small-volume containers such as test tubes due to the short size, the gun head is also suitable for sample injection of small-volume containers such as test tubes, and is different from the short sample injection needle in use scenes, and the large-volume sample injection seat is more suitable for sample injection of the large-volume containers and is specially used for connecting the large-volume containers and the sample injection kit. No matter which sample introduction mode is adopted, the O-shaped sealing ring at the lower end of the sample introduction base rod is not easy to be soaked in the solvent, so that the sealing performance of the sample introduction device is stronger, the inner wall and the outer wall are not contacted with the solvent, and the cleaning is easier.
Drawings
FIG. 1 is a schematic structural diagram of a flanged pipeline for assembling a sample injection base rod according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a short injection needle according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of a lance head according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a large volume sample injection seat according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a sample injection base rod in a gun head mode according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a sample base rod in a short needle mode according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a sample injection base rod in a large volume sample injection mode according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a flanged pipe according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view at a in fig. 8.
Description of reference numerals: 1-sample introduction base rod, 11-socket, 12-connector, 2-flanging pipeline, 21-liquid inlet channel, 22-flange, 3-plunger plug, 31-middle hole, 32-flange, 4-O-shaped sealing ring, 5-short sample introduction needle, 51-plug, 6-gun head, 61-gun head socket, 7-large volume sample introduction seat, 71-sample introduction socket and 72-large volume connector.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a compatible sample introduction base rod structure which comprises a sample introduction base rod 1, a flanging pipeline 2, a plunger plug 3, an O-shaped sealing ring 4, a short sample introduction needle 5, a gun head 6 and a large-volume sample introduction seat 7.
The plunger plug 3 is provided with a middle hole 31;
fig. 8 shows that the flanging pipeline 2 is long, the inside of the flanging pipeline 2 is provided with a liquid inlet channel 21, and the lower end of the flanging pipeline 2 is outwardly flanged with a flange 22, as shown in fig. 9;
as shown in fig. 1, a socket 11 for plugging a plunger plug 3 or a short sample injection needle 5 is formed in the end of the sample injection base rod 1, the flanged pipeline 2 is penetrated through the middle of the sample injection base rod 1, and a flange 22 at the lower end of the flanged pipeline 2 is located at the bottom of the socket 11; the plunger plug 3 is detachably inserted into the socket 11 and compresses the flange 22 to form sealing, the plunger plug 3 or the plug 51 of the short sampling needle 5 compresses the flange 22 in the socket 11, and the central hole 31 of the plunger plug 3 is communicated with the liquid inlet channel 21; and a joint 12 for sealing and sleeving the gun head 6 or the large-volume sample injection seat 7 is formed on the outer wall of the tail end of the sample injection base rod 1.
Referring to fig. 2, a sample injection plug 51 is arranged at the top end of the short sample injection needle 5, and after the plunger plug 3 is detached from the socket 11 at the tail end of the sample injection base rod 1, the sample injection plug 51 is inserted in the socket 11 in a sealing manner and compresses the flange 22 to form sealing.
Referring to fig. 3, a tip socket 61 is arranged at the top end of the tip 6, and the tip socket 61 is hermetically sealed and connected to the joint 12 at the tail end of the sample injection base rod 1.
Referring to fig. 4, a sample inlet 71 is disposed at the top end of the large volume sample inlet seat 7, a large volume joint 72 connected to a large volume container (not shown in the figure) is disposed at the end of the large volume sample inlet seat 7, and the sample inlet 71 is hermetically sleeved on the joint 12 at the end of the sample base rod 1. Specifically, the sealing sleeve joint is that the outer wall of a joint 12 at the tail end of the sample introduction base rod 1 is sleeved with the O-shaped sealing ring 4, and the O-shaped sealing ring 4 is positioned above the socket 11.
The invention has the following application mode: a large volume sample introduction mode; the sampling device consists of a sampling base rod 1, a flanging pipeline 2, an O-shaped sealing ring 4, a plunger plug 3 and a large-volume sampling seat 7, and is shown in figure 5; in the mode, the plunger plug 3 tightly presses and fixes the flanging pipeline 2 on the sample introduction base rod 1, so that the sample introduction base rod 1, the flanging pipeline 2 and the plunger plug 3 form sealing; the outer wall of a joint 12 of the sample introduction base rod 1 above the plunger plug 3 is sleeved with an O-shaped sealing ring 4, the plunger plug 3 is plugged into a sample introduction socket 71 of the large-volume sample introduction seat 7, the sample introduction socket 71 is plugged at the O-shaped sealing ring 4 and sealed with the O-shaped sealing ring 4 to form a sealing space, when a sample is extracted, a large-volume joint 72 at the tail end of the large-volume sample introduction seat 7 is connected with a large-volume container, negative pressure is formed inside the large-volume joint 72, a solvent enters an inner cavity of the large-volume joint 72 through a pipeline and then enters the liquid inlet channel 21 through the middle hole 31 to realize large-volume sample introduction. This mode is suitable for connecting large volume containers.
This patent application mode two: a gun head mode; the sampling device consists of a sampling base rod 1, a flanging pipeline 2, an O-shaped sealing ring 4, a plunger plug 3 and a gun head 6, and is shown in figure 6; in the mode, the plunger plug 3 tightly presses and fixes the flanging pipeline 2 on the sample introduction base rod 1, so that the sample introduction base rod 1, the flanging pipeline 2 and the plunger plug 3 form sealing; an O-shaped sealing ring 4 is sleeved on the outer wall of the sample introduction base rod 1 above the plunger plug 3, and a gun head 6 is placed in a gun head placing disc (not shown in the figure); when the sample injection base rod 1 is inserted into the gun head 6 arranged on the gun head placing disc, the O-shaped sealing ring 4 on the outer wall of the lower end of the sample injection base rod 1 and the gun head 6 form a sealing space, and when a sample is extracted, negative pressure is formed inside the gun head 6, so that the effect of small-volume sample injection of the gun head is realized. This mode can be extended into small volume containers such as test tubes.
The invention has the third application mode: a short injection needle mode; the sample injection device consists of a sample injection base rod 1, a flanging pipeline 2, an O-shaped sealing ring 4 and a short sample injection needle 5, and is shown in figure 7; this mode is pull down plunger plug 3 earlier, inserts short syringe 5 in the socket 11, and short syringe 5 is advanced appearance base rod 1 with the syringe and is compressed tightly turn-ups pipeline 2 and form sealed effect, and short syringe 5 forms confined route with inlet channel 21 at this moment, and this mode need not to use O type sealing washer 4 and plunger plug 3, and during the extraction sample, the solvent just can get into inlet channel 21 and reach corresponding position through short syringe 5 and mesopore 31, realizes the syringe and advances the appearance. This mode can be extended into small volume containers such as test tubes.
The outer part of the plunger plug 3 is formed with a flange 32, the diameter of the flange 32 is larger than that of the socket 11, and the flange 32 can be used for grasping, so that the plunger plug 3 can be inserted and pulled out conveniently.
In order to improve the inserting firmness, the plug 3 of the plunger and the plug 51 of the short injection needle 5 are both formed with external threads, and an internal thread matched with the external threads is formed in the socket 11.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.
Claims (7)
1. A compatible sample introduction base rod structure is characterized by comprising a sample introduction base rod, a flanging pipeline and a plunger plug;
the plunger plug is provided with a middle hole;
the inside of the flanging pipeline is provided with a liquid inlet channel, and the lower end of the flanging pipeline is flanged outwards to form a flange;
a socket for plugging a plunger plug or a short sample injection needle is formed in the tail end of the sample injection base rod, the middle part of the sample injection base rod penetrates through the flanging pipeline, and a flange at the lower end of the flanging pipeline is positioned at the bottom of the socket; the plunger plug is detachably inserted in the socket and compresses the flange to form sealing, and a middle hole of the plunger plug is communicated with the liquid inlet channel;
and the outer wall of the tail end of the sample introduction base rod forms a joint for sealing and sleeving the gun head or the large-volume sample introduction seat.
2. The structure of claim 1, wherein a sample plug is disposed at a top end of the short sample injection needle, and after the plunger plug is detached from the socket at the end of the sample injection base rod, the sample plug is inserted in the socket in a sealing manner and presses the flange to form a seal.
3. The structure of claim 1, wherein a tip end of the tip is provided with a tip socket, and the tip socket is sealed and sleeved on a joint at the tail end of the sample base rod.
4. The structure of claim 1, wherein the top end of the large volume sample holder is provided with a sample inlet, the end of the large volume sample holder is provided with a large volume connector connected with the large volume container, and the sample inlet is sealed and sleeved on the connector at the end of the sample base rod.
5. The structure of claim 1, wherein an O-ring is sleeved on the joint at the end of the sample base rod.
6. The structure of claim 1, wherein the plug has a flange formed on an outer portion thereof, the flange having a diameter greater than a diameter of the socket.
7. The structure of claim 1, wherein the plug of the plunger and the plug of the short sampling needle are both formed with external threads, and the socket is formed with internal threads matching with the external threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534638.3A CN113262832B (en) | 2021-05-17 | 2021-05-17 | Compatible sample introduction base rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534638.3A CN113262832B (en) | 2021-05-17 | 2021-05-17 | Compatible sample introduction base rod structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113262832A true CN113262832A (en) | 2021-08-17 |
| CN113262832B CN113262832B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110534638.3A Active CN113262832B (en) | 2021-05-17 | 2021-05-17 | Compatible sample introduction base rod structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3928271A1 (en) * | 1989-08-26 | 1991-02-28 | Huether Fritz Joachim Dipl Che | Vacuum suction appts. for contaminated liquids - has suction piston and single channel adaptor for pipette tips on injection needles |
| US5874048A (en) * | 1994-09-16 | 1999-02-23 | Fuji Photo Film Co., Ltd. | Spotting tip |
| CN1680040A (en) * | 2000-04-07 | 2005-10-12 | 吉尔松有限合伙公司 | Pipette with simplified disassembly |
| CN202129089U (en) * | 2011-06-24 | 2012-02-01 | 福州泰普生物科学有限公司 | Specimen transferring device |
| US20180064383A1 (en) * | 2016-09-06 | 2018-03-08 | Shih-Hua HUANG | Multi-functional specimen collector |
| CN209663294U (en) * | 2019-03-18 | 2019-11-22 | 睿科集团(厦门)股份有限公司 | It is a kind of can anti-dropout pipette tips structure |
| CN211886904U (en) * | 2020-04-06 | 2020-11-10 | 西华师范大学 | Liquid-transfering gun capable of configuring multiple gun heads |
-
2021
- 2021-05-17 CN CN202110534638.3A patent/CN113262832B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3928271A1 (en) * | 1989-08-26 | 1991-02-28 | Huether Fritz Joachim Dipl Che | Vacuum suction appts. for contaminated liquids - has suction piston and single channel adaptor for pipette tips on injection needles |
| US5874048A (en) * | 1994-09-16 | 1999-02-23 | Fuji Photo Film Co., Ltd. | Spotting tip |
| CN1680040A (en) * | 2000-04-07 | 2005-10-12 | 吉尔松有限合伙公司 | Pipette with simplified disassembly |
| CN202129089U (en) * | 2011-06-24 | 2012-02-01 | 福州泰普生物科学有限公司 | Specimen transferring device |
| US20180064383A1 (en) * | 2016-09-06 | 2018-03-08 | Shih-Hua HUANG | Multi-functional specimen collector |
| CN209663294U (en) * | 2019-03-18 | 2019-11-22 | 睿科集团(厦门)股份有限公司 | It is a kind of can anti-dropout pipette tips structure |
| CN211886904U (en) * | 2020-04-06 | 2020-11-10 | 西华师范大学 | Liquid-transfering gun capable of configuring multiple gun heads |
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| Publication number | Publication date |
|---|---|
| CN113262832B (en) | 2022-04-19 |
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Denomination of invention: A compatible sample injection base structure Effective date of registration: 20230320 Granted publication date: 20220419 Pledgee: Bank of China Limited Xiamen hi tech Park sub branch Pledgor: Ruike Group (Xiamen) Co.,Ltd. Registration number: Y2023980035527 |