CN212513836U - Adjustable quantitative fluorine lining sampling valve - Google Patents
Adjustable quantitative fluorine lining sampling valve Download PDFInfo
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- CN212513836U CN212513836U CN202020861737.3U CN202020861737U CN212513836U CN 212513836 U CN212513836 U CN 212513836U CN 202020861737 U CN202020861737 U CN 202020861737U CN 212513836 U CN212513836 U CN 212513836U
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Abstract
The utility model provides an adjustable quantitative fluorine lining sampling valve, including valve body, case, valve rod, support, valve rod and case transmission cooperation, the valve rod drives the valve core reciprocating motion from top to bottom in the valve body under the rotation condition, case side be equipped with the breach of storage sample, this breach is quantitative breach, is equipped with the through-hole in valve body one side, when the case moves to the breach position and communicates with each other with the through-hole sample in the valve core flows through the through-hole, the case lower extreme has full diameter seal segment, when the breach sample is accomplished through case upward movement to seal segment and valve body conflict realization sampling valve's sealing; the sealing of the sampling valve is realized by the abutting of the valve core on the upper part of the notch and the valve body in the notch sampling process. The valve core is provided with a quantitative groove, the calculated volume of the groove is the volume required to be sampled, and when the sampling quantity needs to be adjusted, the PTFE ball filler with the calculated volume is placed in the quantitative groove of the valve core, so that the adjustment of the sampling volume is realized.
Description
Technical Field
The utility model belongs to the technical field of the valve, especially, relate to an adjustable ration lining fluorine sample valve.
Background
Sampling valves are valves used to obtain media samples in pipes or equipment, and are used in situations where chemical analysis of media samples is required on a regular basis. The sampling valve on the market at present has a complex structure and high cost, and has no quantitative regulation function.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure's convenient quantitative sample valve of adjusting is provided.
The utility model discloses a realize through following technical scheme:
an adjustable quantitative fluorine-lined sampling valve comprises a valve body, a valve core, a valve rod and a support, wherein the valve rod is in transmission fit with the valve core, the valve core is driven by the valve rod to reciprocate up and down in the valve body under the rotation condition, a notch for storing a sample is arranged on the side surface of the valve core, the notch is a quantitative notch, a through hole is formed in one side of the valve body, the sample in the valve core flows out through the through hole when the valve core moves to the notch position and is communicated with the through hole, a sealing section with the full diameter is arranged at the lower end of the valve core, and the sampling valve is sealed by the fact that the valve core moves upwards to the; the sealing of the sampling valve is realized by the abutting of the valve core on the upper part of the notch and the valve body in the notch sampling process.
And fluorine lining layers are arranged outside the valve rod and on the inner wall of the valve body.
The lower end of the valve body is provided with an extension part extending downwards, and the inner wall and the outer wall of the extension part are both provided with fluorine lining layers.
The distance between the bottom of the extension part and the through hole of the valve body is larger than the length of the notch.
The breach locate the lower part of case, be equipped with the filler subassembly between valve body upper end inner wall and case.
The packing assembly comprises packing and a packing gland for preventing the packing from sliding out.
And a valve rod nut in threaded connection with the valve rod is arranged on the support, and the valve rod nut is fixed on the support through a fastening screw.
The lower end of the valve rod is provided with a boss extending radially, the upper end of the valve core is provided with a groove for the boss to be embedded, and the upper end of the valve core is fixedly connected with a pressing plate for limiting the boss to slide out of the groove.
The utility model has the advantages that: the valve core is provided with a quantitative groove, the calculated volume of the groove is the volume required to be sampled, and when the sampling quantity needs to be adjusted, the PTFE ball filler with the calculated volume is placed in the quantitative groove of the valve core, so that the adjustment of the sampling volume is realized.
Drawings
Fig. 1 is a cross-sectional view of the whole of the present invention;
fig. 2 is the schematic view of the connection structure of the valve rod and the valve core of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
An adjustable quantitative fluorine-lined sampling valve as shown in fig. 1 and fig. 2 comprises a valve body 1, a valve core 2, a valve rod 7 and a bracket 6, wherein the bracket 6 is fixedly connected with the valve body through a bolt 5, the valve rod 7 is in transmission fit with the valve core 2, the valve core 2 is driven by the valve rod 7 to reciprocate up and down in the valve body 1 under the rotation condition, the upper end of the valve rod is connected with a hand wheel 12 through a screw 11 and a gasket 10 in the embodiment, a notch 21 for storing a sample is arranged on the side surface of the valve core 2, the gap 21 is a quantitative gap 21, a through hole 13 is arranged on one side of the valve body 1, when the valve core 2 moves to the position of the gap 21 and is communicated with the through hole 13, a sample in the valve core 2 flows out through the through hole 13, the lower end of the valve core 2 is provided with a sealing section 22 with full diameter, after the notch 21 finishes sampling, the valve core 2 moves upwards to the sealing section 22 to abut against the valve body 1, so that the sampling valve is sealed; the notch 21 is abutted against the valve body 1 through the valve core 2 on the upper part of the notch 21 in the sampling process to realize the sealing of the sampling valve. Be equipped with quantitative breach on this valve case, when needs sample, through rotatory hand wheel, drive the case and remove to getting the liquid mouth direction, case bottom and valve body are sealed, and the through-hole position is reachd at the top of breach, and the medium in the ration breach flows out from the through-hole on the case, realizes the sampling process. The calculated volume of the quantitative notch is the volume of the required sample, and when the sampling quantity needs to be adjusted, the PTFE ball filler with the calculated volume is placed in the quantitative notch of the valve core, so that the adjustment of the sampling volume is realized. The adjusting mode is quick and convenient.
In order to make the valve suitable for corrosive media, fluorine lining layers are respectively arranged outside the valve core 7 and on the inner wall of the valve body 1, an extension part 14 extending downwards is arranged at the lower end of the valve body 1, and the inner wall and the outer wall of the extension part 14 are respectively provided with a fluorine lining layer. The fluorine lining layer in this embodiment is fluoroplastic.
The distance between the bottom of the extension part 14 and the through hole 13 of the valve body 1 is larger than the length of the notch 21. This allows the entire valve to be removed without leaking the sample.
The notch 21 is arranged at the lower part of the valve core 2, and a packing component is arranged between the inner wall of the upper end of the valve body 1 and the valve core 2. The packing assembly includes a packing 3 and a packing gland 4 that prevents the packing 3 from slipping out. The arrangement of the filling part ensures the tightness of the valve during sampling.
A valve rod nut 8 in threaded connection with the valve rod 7 is arranged on the support 6, and the valve rod nut 8 is fixed on the support 6 through a set screw 9. The lower end of the valve rod 7 is provided with a boss 71 extending in the radial direction, the upper end of the valve core 2 is provided with a groove 23 for embedding the boss 71, and the upper end of the valve core 2 is fixedly connected with a pressure plate 15 for limiting the boss 71 to slide out of the groove 23. The pressing plate is provided with a through groove for the valve rod to rotate, and the pressing plate can ensure that the valve rod and the valve core can rotate relatively and can drive the valve core to move up and down when the valve rod rotates.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides an adjustable quantitative lining fluorine sample valve, includes valve body, case, valve rod, support, valve rod and case transmission cooperation, reciprocating motion about the valve rod is driven the valve core under the rotation condition in the valve body, its characterized in that: the side surface of the valve core is provided with a notch for storing a sample, the notch is a quantitative notch, one side of the valve body is provided with a through hole, the sample in the valve core flows out through the through hole when the valve core moves to the notch position and is communicated with the through hole, the lower end of the valve core is provided with a sealing section with a full diameter, and the valve core moves upwards to the sealing section to be abutted against the valve body after sampling of the notch, so that the sealing of the sampling valve is realized; the sealing of the sampling valve is realized by the abutting of the valve core on the upper part of the notch and the valve body in the notch sampling process.
2. An adjustable quantitative fluorine-lined sampling valve as defined in claim 1, wherein: and fluorine lining layers are arranged outside the valve rod and on the inner wall of the valve body.
3. An adjustable quantitative fluorine-lined sampling valve as defined in claim 1, wherein: the lower end of the valve body is provided with an extension part extending downwards, and the inner wall and the outer wall of the extension part are both provided with fluorine lining layers.
4. An adjustable quantitative fluorine-lined sampling valve as defined in claim 3, wherein: the distance between the bottom of the extension part and the through hole of the valve body is larger than the length of the notch.
5. An adjustable quantitative fluorine-lined sampling valve as defined in claim 4, wherein: the breach locate the lower part of case, be equipped with the filler subassembly between valve body upper end inner wall and case.
6. An adjustable quantitative fluorine-lined sampling valve as defined in claim 5, wherein: the packing assembly comprises packing and a packing gland for preventing the packing from sliding out.
7. An adjustable quantitative fluorine-lined sampling valve as defined in claim 4, wherein: and a valve rod nut in threaded connection with the valve rod is arranged on the support, and the valve rod nut is fixed on the support through a fastening screw.
8. An adjustable quantitative fluorine-lined sampling valve as defined in claim 4, wherein: the lower end of the valve rod is provided with a boss extending radially, the upper end of the valve core is provided with a groove for the boss to be embedded, and the upper end of the valve core is fixedly connected with a pressing plate for limiting the boss to slide out of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020861737.3U CN212513836U (en) | 2020-05-21 | 2020-05-21 | Adjustable quantitative fluorine lining sampling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020861737.3U CN212513836U (en) | 2020-05-21 | 2020-05-21 | Adjustable quantitative fluorine lining sampling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212513836U true CN212513836U (en) | 2021-02-09 |
Family
ID=74392432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020861737.3U Active CN212513836U (en) | 2020-05-21 | 2020-05-21 | Adjustable quantitative fluorine lining sampling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212513836U (en) |
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2020
- 2020-05-21 CN CN202020861737.3U patent/CN212513836U/en active Active
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