CN218637400U - Liquid sample sampling tube with valve - Google Patents
Liquid sample sampling tube with valve Download PDFInfo
- Publication number
- CN218637400U CN218637400U CN202223173225.6U CN202223173225U CN218637400U CN 218637400 U CN218637400 U CN 218637400U CN 202223173225 U CN202223173225 U CN 202223173225U CN 218637400 U CN218637400 U CN 218637400U
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- liquid sample
- line
- control valve
- sampling tube
- tube body
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Abstract
The utility model discloses a liquid sample sampling tube with a valve, which comprises a tube body, a control valve, a flushing line, a quantitative line and a filtering piece; the upper section of the tube body is connected with the control valve, the tube body below the control valve is provided with the flushing line, the tube body below the flushing line is provided with the quantitative line, and the lower section of the tube body is provided with the filtering piece. The utility model discloses the sampling tube filters the small solid impurity that mixes in the liquid sample through setting up and filtering the piece, through setting up control valve, washing line and ration line, can utilize the backward flow of liquid sample to wash away and filter the attached small solid impurity on the piece, and final ration obtains comparatively pure liquid sample, is favorable to subsequent experimental analysis.
Description
Technical Field
The utility model relates to an experimental apparatus technical field, in particular to take liquid sample sampling tube of valve.
Background
In chemical experiments, it is often necessary to sample a liquid sample with a sampling device and then perform further testing on the sample. The common sampling mode is to use a pipette to sample by hand, and the sampling device absorbs a liquid sample by utilizing the principle of negative pressure effect generated by expansion of an ear sucking ball at the end part, then presses a finger to press a pipe orifice to pipette, and finally releases the finger to discharge the sample. In addition, other sampling devices such as an injector type sampling tube and an air pump type sampling device are provided, the air pump type sampling device uses a long tube type sampling tube with a hole at the top, and the bottom of the sampling tube is provided with a sharp opening.
The prior sampling tubes, including the pipette and the syringe type sampling tube, have the following problems: when the liquid sample is sucked, minute solid impurities such as sand, clay particles, animal and plant organism remains, and the like mixed in the liquid sample may be sucked into the tube together, which may interfere with the subsequent experimental analysis.
SUMMERY OF THE UTILITY MODEL
The utility model provides a take liquid sample sampling tube of valve to solve the problem of proposing among the above-mentioned background art, can get rid of the small solid impurity of mixing in the liquid sample when taking a sample, be favorable to subsequent experimental analysis.
The utility model discloses a following technical scheme realizes:
a liquid sample sampling tube with a valve comprises a tube body, a control valve, a flushing line, a quantifying line and a filtering piece; the upper section of the tube body is connected with the control valve, the tube body below the control valve is provided with the flushing line, the tube body below the flushing line is provided with the quantitative line, and the lower section of the tube body is provided with the filtering piece.
Further, the inner diameter of the middle section of the pipe body is larger than the inner diameters of the upper section and the lower section.
Further, the port of the lower section of the pipe body is a straight pipe port.
Further, the filtering piece is a sand core filter screen installed in the lower section of the pipe body.
Further, the filter member is a needle filter mounted at a lower port of the tube body. The needle head type filter can be movably (plugged or screwed) and disassembled, and is convenient to replace.
Further, the filtering piece is a sand core filtering net installed in the lower section of the pipe body and a needle head type filter installed at the lower section port of the pipe body. The needle head type filter can be movably assembled and disassembled, is convenient to replace, and can further improve the filtering effect by arranging the needle head type filter.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the sampling tube filters the small solid impurity that mixes in the liquid sample through setting up and filtering the piece, through setting up control valve, washing line and ration line, can utilize the backward flow of liquid sample to wash away and filter the attached small solid impurity on the piece, and final ration obtains comparatively pure liquid sample, is favorable to subsequent experimental analysis.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a liquid sample sampling tube with a valve provided by the present invention;
fig. 2 is a schematic structural diagram of an embodiment 2 of a valved liquid sample sampling tube according to the present invention;
fig. 3 is a schematic structural diagram of an embodiment 3 of a liquid sample sampling tube with a valve according to the present invention.
Reference numerals: 1. a pipe body; 2. a control valve; 3. washing the wire; 4. quantifying the line; 5. and (4) a filter element.
Detailed Description
In order to make the technical features of the present invention more easily and clearly understood, the structure of the present invention is described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, a valved liquid sample sampling tube comprises a tube body 1, a control valve 2, a flushing line 3, a quantitative line 4 and a filter member 5; the upper section of the tube body 1 is connected with the control valve 2, the tube body 1 below the control valve 2 is provided with the flushing line 3, the tube body 1 below the flushing line 3 is provided with the quantitative line 4, and the lower section of the tube body 1 is provided with the filtering piece 5.
Further, the inner diameter of the middle section of the pipe body 1 is larger than the inner diameters of the upper section and the lower section.
Further, the port of the lower section of the pipe body 1 is a straight pipe port.
Further, the filter member 5 is a sand core filter net installed in the lower section of the pipe body 1.
Example 2:
as shown in fig. 2, a valved liquid sample sampling tube comprises a tube body 1, a control valve 2, a flushing line 3, a quantitative line 4 and a filter member 5; the upper section of the tube body 1 is connected with the control valve 2, the tube body 1 below the control valve 2 is provided with the flushing line 3, the tube body 1 below the flushing line 3 is provided with the quantitative line 4, and the lower section of the tube body 1 is provided with the filtering piece 5.
Further, the inner diameter of the middle section of the pipe body 1 is larger than the inner diameters of the upper section and the lower section.
Further, the port of the lower section of the pipe body 1 is a straight pipe port.
Further, the filter member 5 is a needle filter mounted at the lower port of the tube 1. The needle filter can be movably assembled and disassembled, and is convenient to replace.
Example 3:
as shown in fig. 3, a valved liquid sample sampling tube comprises a tube body 1, a control valve 2, a flushing line 3, a quantitative line 4 and a filter member 5; the upper section of the tube body 1 is connected with the control valve 2, the tube body 1 below the control valve 2 is provided with the flushing line 3, the tube body 1 below the flushing line 3 is provided with the quantitative line 4, and the lower section of the tube body 1 is provided with the filtering piece 5.
Further, the inner diameter of the middle section of the pipe body 1 is larger than the inner diameters of the upper section and the lower section.
Further, the port of the lower section of the pipe body 1 is a straight pipe port.
Further, the filtering piece 5 is a sand core filtering net installed in the lower section of the pipe body 1 and a needle head type filter installed at the lower section port of the pipe body 1. The needle head type filter can be movably assembled and disassembled, is convenient to replace, and can further improve the filtering effect by arranging the needle head type filter.
The utility model discloses the theory of operation of sampling tube:
will the utility model discloses the suction device is connected on the top of sampling tube, in the bottom immersion liquid sample of sampling tube, open control valve 2, liquid sample gets into body 1 from the hypomere port of body 1 under the effect of atmospheric pressure, filter piece 5 and has played the filter action, filter out and pile up the lower surface at filter piece 5 with the small solid impurity that mixes in the liquid sample, when the liquid level rises to flushing line 3 position, close control valve 2, disconnection sampling tube top and suction device's connection, and promote the sampling tube to the liquid sample position above the liquid level, slowly open control valve 2 and make the interior liquid outflow of sampling tube close control valve 2 when the liquid level reduces ration line 4, utilize the backward flow of liquid sample to wash away and filter the attached small solid impurity on 5, final ration obtains comparatively pure liquid sample, accomplish the sample of liquid sample.
The utility model discloses the sampling tube filters piece 5 through setting up, can filter the small solid impurity of mixing in the liquid sample when the sample, through setting up control valve 2, washing line 3 and ration line 4, can utilize the backward flow of liquid sample to wash away and filter adnexed small solid impurity on the piece 5, and final ration obtains comparatively pure liquid sample, is favorable to subsequent experimental analysis.
The present invention has been described in detail with reference to the embodiments, but the description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical personnel in the field are in the utility model technical scheme's inspiration the utility model discloses an essence and protection within range, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to within the protection scope is covered to the patent of the utility model.
Claims (6)
1. A liquid sample sampling tube with a valve is characterized by comprising a tube body (1), a control valve (2), a flushing line (3), a quantitative line (4) and a filtering piece (5); the upper segment of body (1) is connected control valve (2), the control valve (2) below be equipped with on body (1) wash line (3), wash line (3) below be equipped with on body (1) ration line (4), the hypomere of body (1) is equipped with filter piece (5).
2. A valved liquid sample sampling tube according to claim 1, wherein the internal diameter of the middle section of the body (1) is greater than the internal diameter of the upper and lower sections.
3. A valved liquid sample sampling tube according to claim 1, wherein the lower end of the body (1) is ported as a straight tube port.
4. A valved liquid sample sampling tube according to claim 1, wherein said filter element (5) is a sand core screen mounted in a lower section of said body (1).
5. A valved liquid sample sampling tube according to claim 1, wherein the filter element (5) is a needle filter mounted at the lower port of the body (1).
6. A valved liquid sample sampling tube according to claim 1, wherein the filter element (5) is a sand core screen mounted in the lower section of the tube body (1) and a needle tip filter mounted at the lower end port of the tube body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223173225.6U CN218637400U (en) | 2022-11-29 | 2022-11-29 | Liquid sample sampling tube with valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223173225.6U CN218637400U (en) | 2022-11-29 | 2022-11-29 | Liquid sample sampling tube with valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218637400U true CN218637400U (en) | 2023-03-17 |
Family
ID=85498400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223173225.6U Active CN218637400U (en) | 2022-11-29 | 2022-11-29 | Liquid sample sampling tube with valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218637400U (en) |
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2022
- 2022-11-29 CN CN202223173225.6U patent/CN218637400U/en active Active
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