CN203148888U - Measuring device suitable for plugging and unplugging under pressure - Google Patents
Measuring device suitable for plugging and unplugging under pressure Download PDFInfo
- Publication number
- CN203148888U CN203148888U CN 201220646757 CN201220646757U CN203148888U CN 203148888 U CN203148888 U CN 203148888U CN 201220646757 CN201220646757 CN 201220646757 CN 201220646757 U CN201220646757 U CN 201220646757U CN 203148888 U CN203148888 U CN 203148888U
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims description 66
- 230000037431 insertion Effects 0.000 claims description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000011010 flushing procedure Methods 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 14
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 35
- 239000002002 slurry Substances 0.000 abstract description 11
- 238000001139 pH measurement Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 238000012423 maintenance Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a measuring device suitable for plugging and unplugging under pressure, which comprises an outer sleeve, a full-open full-closed valve, a sealing device, an insert tube, and a measuring electrode; one end of the outer sleeve is provided with a first flange; the full-open full-closed valve is disposed at the other end of the outer sleeve; one end of the full-open full-closed valve is connected with the outer sleeve through a flange so as to realize communication; the other end of the full-open full-closed valve is provided with a second flange; the sealing device is disposed in the central part of the outer sleeve; one end of the insert tube is provided with a third flange; the measuring electrode is disposed at the other end of the insert tube, and extends out from the other end of the insert tube; the measuring electrode is provided with a signal line interface; the insert tube and the measuring electrode can pass through the outer sleeve and the full-open full-closed valve; the measuring electrode extends out from the other end of the full-open full-closed valve; the third flange is connected with the first flange; and sealing is realized by cooperation of the sealing device with the insert tube. The measuring device of the utility model can easily realize on-line measurement of pH values of inner slurry or common liquid.
Description
Technical Field
The utility model relates to a measuring device especially relates to a but measuring device of pressure plug for measuring PH value.
Background
The pH reflects the concentration of hydrogen ions in the liquid. In the fields of industry, agriculture, scientific research, environmental protection and the like, the pH value of liquid is often required to be measured. The PH is usually measured by inserting a glass electrode (probe) into the liquid, converting the PH of the liquid into an electrical signal by the glass electrode, transmitting the electrical signal to a secondary meter, and displaying the electrical signal on a screen after the electrical signal is processed by the secondary meter. The currently used PH measurement methods mainly include the following:
1. sampling and measuring method
The method mainly comprises the steps of sampling liquid to be measured by using a measuring cup, directly inserting a glass electrode into the measuring cup to measure the pH value of the liquid, and displaying a measuring result through a secondary instrument. The method can not meet the requirement of continuously measuring the pH value in the production process, and is generally suitable for measuring the pH value in a laboratory.
2. Plug-in measuring method
Which typically include top-plug measurements and side-plug measurements. Wherein the top-insertion type measurement is to insert a measuring electrode directly downward into the top of the container to measure the pH of the liquid in the container. This method requires a stable liquid level within the container and allows for an empty release container. Otherwise, the pH value can be measured inaccurately, or the measuring electrode can not be taken out online at any time for periodic calibration.
The side-insertion type measurement method is to insert a measuring electrode directly into the side of a container to measure the pH value of the liquid in the container. This measurement method is generally used only rarely, since the electrodes need to be calibrated periodically, which requires the removal of the electrodes from the container, which is impossible to empty at will.
3. Pipeline leading-out type measuring method
The method is to take out the measuring liquid by using a pipeline, and to install a measuring electrode on the pipeline to measure the pH value of the liquid. The liquid to be measured can be led out by adopting a liquid pump or a self-flowing mode, and the real-time continuous measurement of the pH value of the liquid can be realized. At present, the method is mostly used for measuring the pH value of the desulfurization system in China. However, this method still has the following disadvantages:
(1) because of the need for fluid flow, a fluid pump is often required to maintain fluid operation, which results in a significant waste of electrical energy.
(2) If the liquid to be measured is slurry, the glass electrode is greatly abraded by the fine particles in the slurry, and the stability and the service life of the electrode are reduced.
(3) If the liquid to be measured contains large impurities, the glass electrode can be broken by the large impurities in the liquid when the liquid passes through the pipeline at high speed.
(4) When the liquid to be measured is slurry, the equipment and the pipeline which are matched with the PH value measurement are greatly abraded, so the method causes great investment waste of the equipment and the pipeline.
(5) Because the slurry can cause the easy damage of the electrode, the easy blockage and easy abrasion of the pipeline and the equipment, the maintenance workload is very large at ordinary times.
(6) The method has high requirements on the flow rate of the slurry, the flow rate of the slurry needs to be stable, and the actual operation is difficult. If the flow rate of the slurry is low, the slurry can cause deposition and blockage in a pipeline of the densimeter; if the flow rate of the slurry is high, wear of the glass electrode is accelerated, resulting in measurement value misalignment.
(7) If this measurement method is used to measure the pH of the slurry, the piping must be periodically flushed, thereby causing a large amount of clean water to be wasted.
In view of the above-mentioned defects of the prior art, the designer is based on the practical experience and professional knowledge that are rich for many years when the designer designs and manufactures the product, and cooperates with the application of the theory to actively carry out research and innovation, so as to create a measuring device with a novel structure and capable of being plugged and unplugged under pressure, and the measuring device is more practical. Through continuous research and design, and after repeated trial sample and improvement, the utility model discloses the practical value of utensil is established in the end.
Disclosure of Invention
An object of the utility model is to overcome the defect that prior art exists, and provide a measuring device that can take pressure plug of novel structure, the technical problem that solve makes its realization that can be convenient to the on-line measurement of the pH value of thick liquid or ordinary liquid, prolongs the life of electrode, reduces the work load of maintenance and maintenance, strengthens measured data's stability to energy-conservation, environmental protection are suitable for the practicality very much.
The purpose of the utility model and the technical problem to be solved are realized by adopting the following technical scheme. The foundation the utility model provides a can take measuring device of pressure plug, it includes: the device comprises an outer sleeve, an all-open and all-close valve, a sealing device, an insertion tube and a measuring electrode; the first flange is arranged at one end of the outer sleeve, and the full-open and full-close valve is arranged at the other end of the outer sleeve; one end of the full-open full-close valve is communicated with the outer sleeve, and the other end of the full-open full-close valve is provided with a second flange; the sealing device is arranged in the middle of the outer sleeve; a third flange is arranged at one end of the insertion pipe, the measuring electrode is arranged at the other end of the insertion pipe and extends out of the other end of the insertion pipe, and a signal line interface is arranged on the measuring electrode; the insertion tube and the measuring electrode can penetrate through the outer sleeve and the full-open full-close valve, so that the measuring electrode extends out from the other end of the full-open full-close valve, the third flange is connected with the first flange, and the sealing device is matched with the insertion tube to realize sealing.
The purpose of the present invention and the technical problem thereof can be further achieved by the following technical measures.
The measuring device capable of being plugged and unplugged with pressure further comprises a washing water nozzle, the washing water nozzle is arranged at one end of the insertion pipe, provided with the measuring electrode, and extends out of one end of the insertion pipe, provided with the measuring electrode, the length of the washing water nozzle extending out of the insertion pipe is greater than the length of the measuring electrode extending out of the insertion pipe, and a spray opening of the washing water nozzle faces the measuring electrode; and a flushing water nozzle is provided with a flushing water interface, the flushing water interface is connected with a flushing water pipe in the insertion pipe, the flushing water pipe is led out from one end of the insertion pipe, which is provided with the third flange, and an electromagnetic valve or a manual valve is arranged on the flushing water pipe leading out of the insertion pipe.
The measuring device capable of being plugged and unplugged with pressure is characterized in that an electrode holder is arranged at the other end of the insertion tube, and the measuring electrode is arranged on the electrode holder and extends out of the end face of the electrode holder.
In the measuring device with pressure plug-in and pull-out function, the signal line interface is connected with the signal line in the insertion pipe, and the signal line is led out from one end of the insertion pipe, where the third flange is arranged.
According to the measuring device capable of being plugged and pulled under pressure, the sealing device is provided with the oil seal, and the insertion pipe is matched with the oil seal to realize sealing.
In the above-mentioned measuring device with pressure plug, an insertion depth display mark is provided on the insertion tube.
The measuring device capable of being plugged and unplugged under pressure further comprises at least two sets of long bolts for connecting the first flange and the third flange; each set of long bolt is composed of a long bolt and a nut with two prepared ends.
The measuring device capable of being plugged and unplugged under pressure is described above, wherein the measuring electrode is a glass electrode.
The measuring device capable of being plugged and unplugged under pressure is characterized in that the full-open and full-close valve is a corrosion-resistant ball valve or a gate valve.
In the above measuring device with pressure plug, the outer sleeve is a stainless steel tube, and the insertion tube is a plastic tube.
Compared with the prior art, the utility model obvious advantage and beneficial effect have. Borrow by above-mentioned technical scheme, the utility model discloses can take measuring device of pressure plug has following advantage and beneficial effect at least:
(1) the utility model discloses realization that can be convenient is to the on-line measuring of the pH value of thick liquid or ordinary liquid to can take out the demarcation to the electrode at any time.
(2) The utility model discloses owing to do not use the liquid pump, consequently can save a large amount of electric energy.
(3) The utility model discloses when the volume of awaiting measuring liquid is the thick liquid, compare in the pipeline and draw forth the formula measuring method, can effectually avoid the fine particle in the thick liquid to the wearing and tearing that measuring electrode produced, increase the stability and the life of electrode.
(4) The utility model discloses compare in the pipeline and draw forth the formula measuring method, can also effectually avoid the great debris that contains in the liquid to hit garrulous electrode.
(5) The utility model discloses compare in the pipeline and draw forth the formula measuring method, can effectually avoid the thick liquid to the wearing and tearing that supporting equipment and pipeline produced, practice thrift the investment cost of a large amount of equipment, pipeline.
(6) The utility model discloses compare in the pipeline and draw forth the formula measuring method, the work load of the maintenance that jam, wearing and tearing formed of the pipeline that can effectual reduction thick liquid caused and equipment.
(7) The utility model discloses compare in the pipeline and draw forth the formula measuring method, avoided the difficulty of strict regulation thick liquid velocity of flow.
(8) The utility model discloses compare in the pipeline and draw forth the formula measuring method, the effectual waste of having avoided washing the pipeline and a large amount of clean water that cause, realization that can be convenient is to the washing of electrode.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is an exploded view of a measuring device with pressure plug and pull and a measured container thereof according to a preferred embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the specific embodiments, structures, features and effects of the measuring device with pressure plugging according to the present invention with reference to the accompanying drawings and preferred embodiments.
The foregoing and other features, aspects and utilities of the present invention will be apparent from the following more particular description of preferred embodiments of the invention when read in conjunction with the accompanying drawings. While the present invention has been described in connection with specific embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Referring to fig. 1, an exploded view of a measuring device with pressure plugging and unplugging and a measured container thereof according to a preferred embodiment of the present invention is shown. The utility model discloses measuring device that preferred embodiment can take pressure plug mainly comprises outer tube 1, the totally open totally closed valve 2, sealing device 3, insert tube 4 and measuring electrode 5. Wherein, one end of the outer sleeve 1 is provided with a first flange 7, and the full-open full-close valve 2 is arranged at the other end of the outer sleeve 1. One end of the full-open full-close valve 2 is communicated with the outer sleeve 1, and the other end of the full-open full-close valve 2 is provided with a second flange 6. The sealing device 3 is arranged in the middle of the outer sleeve 1. One end of the insertion tube 4 is provided with a third flange 9, the measuring electrode 5 is arranged at the other end of the insertion tube 4 and extends out of the other end of the insertion tube 4, and the measuring electrode 5 is provided with a signal line interface 8. The glass electrode 5 can be in signal connection with a secondary instrument through a signal line interface 8, so that a PH value signal measured by the glass electrode 5 is transmitted to the secondary instrument for operation processing and display. The utility model discloses an insert tube 4 and measuring electrode 5 can pass outer tube 1 and full-open closed valve 2, make measuring electrode 5 stretch out by the other end of full-open closed valve 2 to make third flange 9 be connected with first flange 7, and sealing device 3 realizes sealedly with the cooperation of insert tube 4. Wherein, one end of the full-open and full-close valve 2 can be connected with the outer sleeve 1 through a flange.
As shown in FIG. 1, the utility model discloses measuring device that can take pressure plug still can include washing water nozzle 11, and washing water nozzle 11 sets up in the one end that insert tube 4 was equipped with glass electrode 5 to stretch out by the one end that insert tube 4 was equipped with glass electrode 5, and washing water nozzle 11 stretches out the length that insert tube 4 is greater than glass electrode 5 and stretches out the length of insert tube 4, and washing water nozzle 11's jet is towards glass electrode 5. The flushing water nozzle 11 is provided with a flushing water connection 12, the flushing water connection 12 is connected with a flushing water pipe 13 in the insertion pipe 4, the flushing water pipe 13 can be led out from the end of the insertion pipe 4 provided with the third flange 9, and the flushing water pipe 13 led out of the insertion pipe 4 can also be provided with an electromagnetic valve 14 or a manual valve and the like.
The utility model discloses a can be equipped with electrode holder 19 at the other end of insert tube 4, measuring electrode 5 sets up on electrode holder 19 to stretch out by electrode holder 19's terminal surface. The rinsing water nozzles 11 may also be arranged on the electrode holder 19 and project from the end face of the electrode holder 19. The electrode holder 19 may be screw-coupled to the other end of the insertion tube 4.
The utility model discloses a signal line interface 8 can be connected with signal line 10 in insert tube 4 to be drawn forth by the one end that insert tube 4 was equipped with third flange 9.
The utility model discloses a sealing device 3 can be equipped with the oil blanket, and insert tube 4 can be realized sealing with the oil blanket cooperation.
The utility model discloses an it still can have the depth of insertion demonstration mark to establish on the intubate 4 for confirm that intubate 4 inserts the degree of depth in outer tube 1, this depth of insertion demonstration mark can be the color mark.
The utility model discloses when measuring the liquid in the closed container, at first, the second flange 6 that will open the shut-off valve 2 completely is connected with the flange 17 on the 15 lopsidedness nozzle stub 16 of closed container, makes outer tube 1 and the shut-off valve 2 of opening completely be fixed in on the closed container 15. At this time, the all-open all-close valve 2 is in a closed state. Then, the end of the insertion tube 4 with the measuring electrode 5 is inserted into the outer sleeve 1 from the end of the outer sleeve 1 provided with the first flange 7, and the first flange 7 and the third flange 9 are connected by at least two long bolts 18. Two ends of two long bolts 18 are respectively provided with nuts. After the end of the insertion tube 4 with the measuring electrode 5 is determined to pass through the sealing device 3 arranged in the middle of the outer sleeve 1 through the insertion depth display mark arranged on the insertion tube 4, two nuts on the long bolt 18 are respectively screwed on two sides of the first flange 7 and the third flange 9, and the full-open full-close valve 2 is opened, so that the end of the insertion tube 4 with the measuring electrode 5 enters the inclined short tube 16 on one side of the closed container 15 through the full-open full-close valve 2. The insertion tube 4 now forms a seal with the sealing device 3. Finally, the third flange 9 of the insertion pipe 4 is tightly connected with the first flange 7 of the outer sleeve 1 through bolts, and online measurement of parameters in the closed container can be conveniently realized.
In order to prevent the liquid in the closed container 15 from adhering to the measuring electrode 5 during the measurement and causing inaccurate measurement results of the electrode 5, the electrode 5 may be periodically washed by the washing water nozzle 11 according to circumstances.
When the measuring electrode 5 needs to be calibrated, the third flange 9 of the insertion tube 4 can be firstly released from the connection with the first flange 7 of the outer sleeve 1, and the insertion tube 4 can be pulled outwards. When it is determined that the insertion tube 4 is separated from the on-off valve 2 by the insertion depth display mark provided on the insertion tube 4, the on-off valve 2 is closed, and the insertion tube 4 is continuously drawn out. Until the insertion tube 4 and the measuring electrode 5 completely leave the outer sleeve 1, the measuring electrode 5 on the insertion tube 4 can be calibrated.
In an embodiment of the present invention, the measuring device of the present invention can be used for on-line measurement of the PH of the liquid in the closed container 15. At this moment the utility model discloses a measuring electrode 5 is the glass electrode, and outer tube 1 can be nonrust steel pipe, and open-close totally-closed valve 2 can be for corrosion-resistant ball valves such as lining fluorine ball valve, ceramic ball valve or slide valve, and insert tube 4 can be the plastic tubing, nevertheless the utility model discloses not use this as the limit. The utility model discloses a measuring device still can be used to the measurement to other parameters in the closed container 15.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all those skilled in the art can make modifications, equivalent changes and modifications to the above embodiments without departing from the technical scope of the present invention.
Claims (13)
1. The utility model provides a measuring device that can take pressure plug which characterized in that it includes: the device comprises an outer sleeve, an all-open and all-close valve, a sealing device, an insertion tube and a measuring electrode; wherein,
one end of the outer sleeve is provided with a first flange, and the full-open and full-close valve is arranged at the other end of the outer sleeve; one end of the full-open full-close valve is communicated with the outer sleeve, and the other end of the full-open full-close valve is provided with a second flange; the sealing device is arranged in the middle of the outer sleeve;
a third flange is arranged at one end of the insertion pipe, the measuring electrode is arranged at the other end of the insertion pipe and extends out of the other end of the insertion pipe, and a signal line interface is arranged on the measuring electrode;
the insertion tube and the measuring electrode can penetrate through the outer sleeve and the full-open full-close valve, so that the measuring electrode extends out from the other end of the full-open full-close valve, the third flange is connected with the first flange, and the sealing device is matched with the insertion tube to realize sealing.
2. The pressure pluggable measuring device of claim 1, further comprising a washing water nozzle, wherein the washing water nozzle is disposed at and extends from the end of the insertion tube where the measuring electrode is disposed, and the length of the washing water nozzle extending from the insertion tube is greater than the length of the measuring electrode extending from the insertion tube, and the spray opening of the washing water nozzle faces the measuring electrode; and a flushing water nozzle is provided with a flushing water interface, the flushing water interface is connected with a flushing water pipe in the insertion pipe, the flushing water pipe is led out from one end of the insertion pipe, which is provided with the third flange, and an electromagnetic valve or a manual valve is arranged on the flushing water pipe leading out of the insertion pipe.
3. The pressure pluggable measuring apparatus according to claim 1 or 2, wherein an electrode holder is provided at the other end of the insertion tube, and the measuring electrode is disposed on the electrode holder and extends from an end face of the electrode holder.
4. The pressure pluggable measuring device of claim 1, wherein the signal line interface is connected with a signal line in the insertion tube, and the signal line is led out from one end of the insertion tube where the third flange is arranged.
5. The pressure pluggable measuring device as claimed in claim 1, wherein the sealing device is provided with an oil seal, and the insertion tube is matched with the oil seal to realize sealing.
6. The pressure pluggable measuring device of claim 1, wherein an insertion depth display mark is provided on the insertion tube.
7. The pressure pluggable measuring device of claim 1, further comprising at least two sets of long bolts connecting the first flange and the third flange; each set of long bolt is composed of a long bolt and a nut with two prepared ends.
8. The pressure-pluggable measuring device of claim 1, 2, 4, 5, 6 or 7, wherein the measuring electrode is a glass electrode.
9. The pressure pluggable measuring device of claim 8, wherein the totally-open and totally-closed valve is a corrosion-resistant ball valve or a gate valve.
10. The pressure pluggable measuring device of claim 8, wherein the outer sleeve is a stainless steel tube and the insertion tube is a plastic tube.
11. The pressure pluggable measurement device of claim 3, wherein the measurement electrode is a glass electrode.
12. The pressure pluggable measuring device of claim 11, wherein the totally-open and totally-closed valve is a corrosion-resistant ball valve or a gate valve.
13. The pressure pluggable measuring device of claim 11, wherein the outer sleeve is a stainless steel tube and the insertion tube is a plastic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646757 CN203148888U (en) | 2012-11-30 | 2012-11-30 | Measuring device suitable for plugging and unplugging under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646757 CN203148888U (en) | 2012-11-30 | 2012-11-30 | Measuring device suitable for plugging and unplugging under pressure |
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| Publication Number | Publication Date |
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| CN203148888U true CN203148888U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646757 Expired - Fee Related CN203148888U (en) | 2012-11-30 | 2012-11-30 | Measuring device suitable for plugging and unplugging under pressure |
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| Country | Link |
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| CN (1) | CN203148888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852507A (en) * | 2012-11-30 | 2014-06-11 | 汪林林 | Measuring device suitable for plugging and unplugging under pressure |
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2012
- 2012-11-30 CN CN 201220646757 patent/CN203148888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852507A (en) * | 2012-11-30 | 2014-06-11 | 汪林林 | Measuring device suitable for plugging and unplugging under pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20151130 |
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| EXPY | Termination of patent right or utility model |