CN215277393U - Sample exporting connector - Google Patents

Sample exporting connector Download PDF

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Publication number
CN215277393U
CN215277393U CN202120221980.3U CN202120221980U CN215277393U CN 215277393 U CN215277393 U CN 215277393U CN 202120221980 U CN202120221980 U CN 202120221980U CN 215277393 U CN215277393 U CN 215277393U
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China
Prior art keywords
connector shell
connector
sample
connecting part
channel
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Application number
CN202120221980.3U
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Chinese (zh)
Inventor
孙林
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Sichuan Heye Technology Co ltd
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Sichuan Heye Technology Co ltd
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Priority to CN202120221980.3U priority Critical patent/CN215277393U/en
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Abstract

The utility model provides a sample leading-out connector, which comprises a connector shell and a sealing plug; the upper end of the connector shell is provided with an upper connecting part, and internal threads are arranged in the upper connecting part; a conical guide groove is formed in the upper end of the middle part of the connector shell, and a radial guide channel with internal threads is arranged in the side wall of the connector shell; a counter bore is also arranged in the middle of the connector shell; the inside main sample channel that is provided with of lower extreme of connector shell, the upper end and the toper guide way of main sample channel and radially derive the passageway and communicate with each other, and the lower extreme of main sample channel communicates with each other with needle tubing connecting portion, and the inside of needle tubing connecting portion has the internal thread. The utility model adopts the corrosion-resistant material and the integrated molding way, so that the utility model has high corrosion resistance and high sealing performance; the whole sample leading-out connector is reasonable and simple in structure and can be popularized and used in various clamping type headspace sampling devices.

Description

Sample exporting connector
Technical Field
The utility model relates to an experimental facilities technical field, concretely relates to connector is derived to sample.
Background
The experimental instrument is used for concrete experiments in natural science and is mainly used in physics, chemistry and biology. Modern common experimental instruments include test tubes, beakers, evaporating dishes, crucibles, alcohol lamps, buchner funnels, gas washing bottles, drying tubes, tray balances, measuring cylinders, volumetric flasks, burettes, measuring devices and the like.
Often, a connection instrument is required in a laboratory for connecting a sample bottle and for guiding something we need from the sample bottle, such as: a gas. Most of sample leading-out connectors used in laboratories are made of polymer materials, and need to have certain corrosion resistance and stable chemical properties.
In the prior art, a general sample leading-out connector has the technical problems of poor tightness, large sample introduction dead volume and difficulty in replacing a sample bottle.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connector is derived to sample, in order to solve among the prior art the seal poor, advance kind dead volume big, change the technical problem of sample bottle difficulty.
To achieve the above objects, one embodiment of the present invention provides a sample derivation connector, including a connector housing and a sealing plug;
the upper end of the connector shell is provided with an upper connecting part, and internal threads are arranged in the upper connecting part;
a conical guide groove is formed in the upper end of the middle part of the connector shell, and a radial guide channel with internal threads is arranged in the side wall of the connector shell; a counter bore is also arranged in the middle of the connector shell;
a main sample feeding channel is arranged in the lower end of the connector shell, the upper end of the main sample feeding channel is communicated with the conical guide groove and the radial guide channel, the lower end of the main sample feeding channel is communicated with the needle tube connecting part, and internal threads are arranged in the needle tube connecting part;
the sealing plug comprises a handheld part, an external thread part and a guide part, and an axial through hole is formed in the sealing plug; the external thread part of the sealing plug is matched with the internal thread of the upper connecting part, and the guide part is matched with the conical guide groove.
The utility model discloses a solve the sample and derive the poor, the poor problem of corrosion resistance of connector seal nature, preferably adopt integrated into one piece's shaping mode and the connector shell wholly adopts corrosion-resistant material to make at the connector shell.
Preferably, the internal thread is of the gauge M6 and has a depth of 9 mm.
Preferably, the counter bores comprise two, which are respectively symmetrically arranged on the middle part of the connector shell.
Preferably, the hand-held part is provided with a plurality of stripes.
The utility model has the advantages that:
1. the internal thread arranged in the upper connecting part of the connector shell of the utility model is connected with the external thread part of the sealing plug, the sealing plug is connected with the air inlet needle, the air inlet needle enters the middle part of the connector shell through the conical guide groove, and finally the air inlet needle penetrates through the lower end of the connector shell through the main sample introduction channel and enters the sample bottle; the air outlet needle in the sample bottle is connected with the connector shell through the needle tube connecting part, gas in the air outlet needle is finally led out through the air guide tube, and the external thread on the air guide tube is matched with the internal thread arranged on the radial leading-out channel, so that the whole sample leading-out process is completed. The whole structure is simple and reasonable, and the whole process is simple and convenient.
2. The connector shell of the utility model adopts an integrated forming mode, so that the whole sample leading-out connector has high tightness; and the material of the whole sample leading-out connector is made of corrosion-resistant material, so that the sample leading-out connector has high corrosion resistance.
3. The utility model is provided with the conical guide groove, which can reduce the dead volume of sample introduction to the maximum extent, thereby ensuring the accuracy and repeatability of the sample detection result to a certain extent; meanwhile, the conical guide groove has a certain guiding function, so that the air inlet needle can conveniently enter the connector.
Drawings
Fig. 1 is a front view of a connector housing according to an embodiment of the present invention;
fig. 2 is a top view of a connector housing in an embodiment of the invention;
FIG. 3 is a cross-sectional view of the embodiment of the present invention shown in FIG. 2A-A;
fig. 4 is a cross-sectional view of fig. 2B-B in an embodiment of the present invention.
Wherein, 1, the connector shell; 2. a counter bore; 3. an upper connecting portion; 4. a radial lead-out channel; 5. a main sample introduction channel; 6. a needle tube connecting part; 7. a tapered guide groove.
Detailed Description
The utility model provides a sample derivation connector, including connector housing 1 and sealing plug. The connector shell 1 adopts an integrated forming mode, and aims to ensure high tightness of the sample leading-out connector; and the connector housing 1 is made of corrosion-resistant material, so that it has high corrosion resistance.
The upper end of the connector housing 1 has an upper connecting portion 3, and an internal thread is provided in the upper connecting portion 3. The specification of the internal thread is M6, and the depth of the threaded hole is 9 mm; the function of the device is to fix the air inlet needle on the connector housing 1 by matching with the external thread part of the sealing plug.
The connector shell 1 has the inside toper guide way 7 that has in middle part upper end, and toper guide way 7 plays the guide effect to the needle that admits air gets into connector shell 1 to it can reduce to the at utmost and advance a kind dead volume to be equipped with toper guide way 7, thereby has guaranteed the accuracy and the repeatability of sample testing result. The side wall is internally provided with a radial lead-out channel 4 with internal threads, and the internal threads of the radial lead-out channel 4 are matched with the external threads on the lead-out pipe and used for leading gas in the gas outlet needle into the lead-out pipe. The middle part of the connector shell 1 is also provided with two counter bores 2, the two counter bores 2 are symmetrically arranged on the middle part of the connector shell 1 respectively, and the connector shell 1 is fixed on a lifting device to realize the lifting of the sample bottle.
The inside main sample channel 5 that is provided with of lower extreme of connector shell 1, the upper end of main sample channel 5 communicates with each other with toper guide way 7 and radial derivation passageway 4, and the needle of admitting air is convenient for also be convenient for follow-up gaseous derivation simultaneously in getting into the sample bottle. The lower end of the main sample feeding channel 5 is communicated with the needle tube connecting part 6, the interior of the needle tube connecting part 6 is provided with an internal thread, the specification of the internal thread is M6, and the depth of the threaded hole is 9 mm. The needle tube connecting part 6 is used for being connected with an air outlet needle, the air outlet needle is installed on a metal joint, and an external thread is arranged on the metal joint and matched with the internal thread of the needle tube connecting part 6.
The size of the air inlet needle is smaller than that of the air outlet needle, the air inlet needle penetrates through the air outlet needle, the gas after sample reaction passes through a gap between the air inlet needle and the air outlet needle and is finally led out from the sample heat-preservation leading-out pipe, and the purpose of setting in this way is to facilitate leading out of the gas.
The sealing plug includes handheld portion, external screw thread portion and guide part, is provided with a plurality of stripes on the handheld portion, is equipped with the stripe and increases the frictional force between hand and the sealing plug. The interior of the sealing plug is provided with an axial through hole, one part of the axial through hole is used for connecting a gas inlet pipe, and the other part of the axial through hole is used for connecting an air inlet needle. The male thread portion of the sealing plug cooperates with the female thread of the upper connecting portion 3 and the guide portion cooperates with the conical guide groove 7.
The installation process comprises the following steps: firstly, an air inlet needle is fixed on a connector shell 1 through matching of an internal thread of a connecting part 3 on the connector shell 1 and an external thread part of a sealing plug, and the air inlet needle is finally inserted into a sample bottle through a conical guide groove 7, a main sample introduction channel 5 and a needle tube connecting part 6 in sequence; then the air outlet needle is fixed on the connector shell 1 through the needle tube connecting part 6, and finally the delivery pipe is fixed on the connector shell 1 through the internal thread on the radial delivery channel 4. The whole installation process is simple and convenient, the structure of the whole sample leading-out connector is simple and reasonable, and the device can be popularized and used in various clamping type headspace sampling devices.
The needle insertion type method is adopted to contact with the sample bottle, so that the sample bottle is convenient to replace, the close contact between the sample bottle and the connector is well ensured, and the leakage of sample steam is prevented; meanwhile, the air inlet needle and the air outlet needle are simple and convenient in installation mode, convenient to replace and convenient to maintain.
The reaction process is as follows: the gas in the inlet pipe enters the sample bottle through the gas inlet needle, and the gas after reaction in the sample bottle sequentially passes through the gas outlet needle, the main sample introduction channel 5 and the radial lead-out channel 4 and is finally led out through the lead-out pipe.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims (5)

1. A sample lead-out connector characterized by: comprises a connector housing and a sealing plug;
the upper end of the connector shell is provided with an upper connecting part, and internal threads are arranged in the upper connecting part;
a conical guide groove is formed in the upper end of the middle of the connector shell, and a radial guide channel with internal threads is arranged in the side wall of the connector shell; a counter bore is also arranged in the middle of the connector shell;
a main sample feeding channel is arranged in the lower end of the connector shell, the upper end of the main sample feeding channel is communicated with the conical guide groove and the radial guide channel, the lower end of the main sample feeding channel is communicated with the needle tube connecting part, and internal threads are arranged in the needle tube connecting part;
the sealing plug comprises a handheld part, an external thread part and a guide part, and an axial through hole is formed in the sealing plug; the external thread part of the sealing plug is matched with the internal thread of the upper connecting part, and the guide part is matched with the conical guide groove.
2. The sample lead-out connector of claim 1, wherein: the connector shell adopts an integrally formed forming mode and is integrally made of corrosion-resistant materials.
3. The sample lead-out connector of claim 1, wherein: the internal thread is of a gauge M6 and has a depth of 9 mm.
4. The sample lead-out connector of claim 1, wherein: the counter bores comprise two counter bores which are respectively symmetrically arranged on the middle part of the connector shell.
5. The sample lead-out connector of claim 1, wherein: the handheld part is provided with a plurality of stripes.
CN202120221980.3U 2021-01-27 2021-01-27 Sample exporting connector Active CN215277393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120221980.3U CN215277393U (en) 2021-01-27 2021-01-27 Sample exporting connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120221980.3U CN215277393U (en) 2021-01-27 2021-01-27 Sample exporting connector

Publications (1)

Publication Number Publication Date
CN215277393U true CN215277393U (en) 2021-12-24

Family

ID=79530371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120221980.3U Active CN215277393U (en) 2021-01-27 2021-01-27 Sample exporting connector

Country Status (1)

Country Link
CN (1) CN215277393U (en)

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