CN203365374U - PH value measuring instrument convenient to wash - Google Patents
PH value measuring instrument convenient to wash Download PDFInfo
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- CN203365374U CN203365374U CN 201320341545 CN201320341545U CN203365374U CN 203365374 U CN203365374 U CN 203365374U CN 201320341545 CN201320341545 CN 201320341545 CN 201320341545 U CN201320341545 U CN 201320341545U CN 203365374 U CN203365374 U CN 203365374U
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- value
- probe
- measuring instrument
- suction casing
- water
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Abstract
The utility model discloses a pH value measuring instrument convenient to wash, which comprises a casing and a suction section, wherein the suction section is arranged below the casing; a potentiostat, a current value-pH value conversion instrument and a probe, which are sequentially connected in series with one another, are arranged inside the casing; the probe is composed of a working electrode and a counter electrode; a partition piece is arranged below the casing; the potentiostat and the current value-pH value conversion instrument are arranged above the partition piece; a cavity is formed below the partition cavity; the probe penetrates the partition piece and extends into the suction section; a ventilation hole is formed in the suction section, and is higher than the bottom end of the probe; the cavity is connected with a water supply device through a water pipe, and is connected with an air supply device through an air pipe; a water valve is arranged on the water pipe; an air valve is arranged on the air pipe. The pH value measuring instrument has the advantages that after measuring, the cavity, the inner wall of the suction section, and the surface of the probe can be washed conveniently, so that no residual measuring liquid is left.
Description
Technical field
The utility model relates to a kind of instrument, especially a kind of easy cleaned pH value measuring instrument.
Background technology
The pH value is to weigh a value of water body potential of hydrogen, also claims hydrogen ionexponent, pH-value, is a kind of scale of hydrogen ion activity in solution, namely the criterion of solution soda acid degree on ordinary meaning.The pH value all has been widely used on medical science, chemistry, agricultural.
Have a lot of methods to measure the pH value of solution: 1, to use the pH indicator: add the pH indicator in solution to be measured, different indicator, according to different pH value meeting changes colours, just can be determined the scope of pH value according to the result of study of indicator.During titration, can make accurate pH standard.2, use the pH test paper: the pH test paper has extensive test paper and precision test paper, with glass rod, is stained with some solution to be measured to test paper, the pH value that then according to change color the contrast ratio colour atla of test paper, also can obtain solution.But the pH test paper can not demonstrate the pH value of oil content, make and measure with hydrogen ion the pH value of solution to be measured due to the pH test paper with hydrogen ion, but do not contain hydrogen ion in oil, so the pH test paper can not demonstrate the pH value of oil content.3, use pH meter: pH meter is a kind of instrument of measuring pH, and it selects electrode to measure the pH value of solution by pH.PH meter can be as accurate as after radix point three.Wherein, because of pH meter, measure accurately, error is less, is most widely used on existing medical science, chemistry, agricultural.
According to the principle of work of pH meter, Chinese patent CN 202956358 U disclose a kind of pH detector, and this detector error is little, and precision is high, and the life-span is long.It comprises housing and suction casing, described suction casing is positioned at the housing below, be provided with the constant potential source be connected in series successively in described housing, current value-pH value conversion instrument and probe, described probe forms by working electrode with to electrode, described lower housing portion is provided with a shim, described constant potential source and current value-pH value conversion device epi-position is in the shim top, described shim below is chamber, described probe is through shim and stretch into described suction casing, but the shortcoming of such pH detector device is: because detection probe is often with different detection liquid contact reactions, comprise in chamber and suction casing, detect the residual of liquid through looking into to have, can affect current detected pH value when the detection liquid of last time when detecting the pH value of another detection liquid is residual, cause the pH value that detects liquid inaccurate, error is larger.
Owing to there being such problem, so be necessary existing easy cleaned pH value measuring instrument is improved.
Summary of the invention
The purpose of this utility model is the deficiency in order to solve above-mentioned technology and easy cleaned pH value measuring instrument that a kind of convenience of designing has been cleaned after having detected.
The easy cleaned pH value measuring instrument that the utility model is designed, comprise housing and suction casing, described suction casing is positioned at the housing below, be provided with the constant potential source be connected in series successively in described housing, current value-pH value conversion instrument and probe, described probe forms by working electrode with to electrode, described lower housing portion is provided with a shim, described constant potential source and current value-pH value conversion device epi-position is in the shim top, described shim below is chamber, described probe is through shim and stretch into described suction casing, described suction casing is provided with bleeder vent, described bleeder vent is higher than the bottom of probe, described chamber is connected with a water sending device by water pipe, and described chamber also is connected with an air-supply arrangement by tracheae, on described water pipe, is provided with water valve, on described tracheae, is provided with air valve.
As preferably:
Described water sending device is water pump, and described air-supply arrangement is blower fan, and described water sending device and air-supply arrangement are symmetricly set on the both sides of described housing.
Described suction casing is provided with a bubbling, and the bottom of described probe is positioned at this bubbling.
Described bubbling top is provided with through hole.
Described case top is provided with link.
The bottom of described suction casing is the angle shape.
The easy cleaned pH value measuring instrument that the utility model is designed, its beneficial effect is:
1, described in the utility model, suction casing is provided with bleeder vent, and described bleeder vent, higher than the bottom bleeder vent of probe, can be breathed freely so better, guarantees that solution enters, thus the precision while guaranteeing to measure;
2, the chamber described in the utility model is connected with a water sending device by water pipe, be provided with water valve on described water pipe, like this can be after having detected, opening water valve flows into water in chamber and suction casing by water pipe, abundant irrigation chamber and suction casing inwall and detecting head surface residue detection liquid, detect when other detects liquid and can not pollute this detection liquid in next time, make the pH value error that records larger;
3, the chamber described in the utility model also is connected with an air-supply arrangement by tracheae; be provided with air valve on described tracheae; the water mark arranged the inwall of the chamber after water rinses and suction casing and detecting head surface are still residual; after opening air valve; after gas washes away; the water mark can be washed down, and guarantees the clean and dry of the inwall of chamber and suction casing and detecting head surface, can not affect the pH value that detects liquid while being convenient to use next time.
The accompanying drawing explanation
Fig. 1 is the structural representation of the easy cleaned pH value of embodiment 1 measuring instrument;
Fig. 2 is the structural representation of the easy cleaned pH value of embodiment 2 measuring instrument;
Fig. 3 is the structural representation of the easy cleaned pH value of embodiment 3 measuring instrument;
Fig. 4 is the structural representation of the easy cleaned pH value of embodiment 4 measuring instrument;
Fig. 5 is the structural representation of the easy cleaned pH value of embodiment 5 measuring instrument;
In figure: housing 1, suction casing 2, constant potential source 3, current value-pH value conversion instrument 4, pop one's head in 5, shim 6, chamber 7, bleeder vent 8, water sending device 9, air-supply arrangement 10, water pipe 11, water valve 12, tracheae 13, air valve 14, bubbling 15, through hole 16, link 17.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, the described easy cleaned pH value measuring instrument of the present embodiment, comprise housing 1 and suction casing 2, described suction casing 2 is positioned at housing 1 below, be provided with the constant potential source 3 be connected in series successively in described housing 1, current value-pH value is changed instrument 4 and is popped one's head in 5, described probe 5 forms by working electrode with to electrode, described housing 1 bottom is provided with a shim 6, described constant potential source 3 and current value-pH value conversion instrument 4 is positioned at shim 6 tops, described shim 6 belows are chamber 7, described probe 5 is through shim 6 and stretch into described suction casing 2, described suction casing 2 is provided with bleeder vent 8, described bleeder vent 8 is higher than the bottom of probe 5, described chamber 7 is connected with a water sending device 9 by water pipe 11, described chamber 7 also is connected with an air-supply arrangement 10 by tracheae 13, be provided with water valve 12 on described water pipe 11, be provided with air valve 14 on described tracheae 13, described water sending device 9 is water pump, described air-supply arrangement 10 is blower fan, and described water sending device 9 and air-supply arrangement 10 are symmetricly set on the both sides of described housing 1.
The described easy cleaned pH value measuring instrument of the present embodiment, its beneficial effect is:
1, the described described suction casing 2 of the present embodiment is provided with bleeder vent 8, and described bleeder vent 8, higher than the bottom bleeder vent 8 of probe 5, can be breathed freely so better, the precision while guaranteeing to measure;
2, the described described chamber 7 of the present embodiment is connected with a water sending device 9 by water pipe 11, be provided with water valve 12 on described water pipe 11, like this can be after having detected, opening water valve 12 flows into water in chamber 7 and suction casing 2 by water pipe 11, fully irrigation chamber 7 and suction casing 2 inwalls and probe 5 remained on surface detect liquid, detect when other detects liquid and can not pollute this detection liquid in next time, make the pH value error that records larger;
3, the described described chamber 7 of the present embodiment also is connected with an air-supply arrangement 10 by tracheae 13; be provided with air valve 14 on described tracheae 13; still residual on the inwall of the chamber 7 after water rinses and suction casing 2 and probe 5 surfaces have a water mark; after opening air valve 14; after gas washes away; the water mark can be washed down, and guarantees the inwall of chamber 7 and suction casing 2 and the clean and dry of 5 surfaces of popping one's head in, and can not affect the pH value that detects liquid while being convenient to use next time.
Embodiment 2:
As shown in Figure 2, the described easy cleaned pH value measuring instrument of the present embodiment, as different from Example 1: described suction casing 2 is provided with a bubbling 15, and the bottom of described probe 5 is positioned at this bubbling 15.Arranging like this increased the space of detecting the liquid reaction, is more conducive to reaction and measures the pH value.
Embodiment 3:
As shown in Figure 3, the described easy cleaned pH value measuring instrument of the present embodiment, as different from Example 2: described bubbling 15 tops are provided with through hole 16.Porose setting like this, can make water enter better bubbling 15.
Embodiment 4:
As shown in Figure 4, the described easy cleaned pH value measuring instrument of the present embodiment, as different from Example 3: described housing 1 top is provided with link 17, and such setting is convenient to people and is carried.
Embodiment 5:
As shown in Figure 5, the described easy cleaned pH value measuring instrument of the present embodiment, as different from Example 4: the bottom of described suction casing 2 is the angle shape, is more conducive to like this absorption detecting liquid.
Specific embodiment described herein is only to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. an easy cleaned pH value measuring instrument, comprise housing (1) and suction casing (2), described suction casing (2) is positioned at housing (1) below, be provided with the constant potential source (3) be connected in series successively in described housing (1), current value-pH value conversion instrument (4) and probe (5), described probe (5) forms by working electrode (51) with to electrode (52), described housing (1) bottom is provided with a shim (6), described constant potential source (3) and current value-pH value conversion instrument (4) is positioned at shim (6) top, described shim (6) below is chamber (7), described probe (5) is through shim (6) and stretch into described suction casing (2), it is characterized in that described suction casing (2) is provided with bleeder vent (8), described bleeder vent (8) is higher than the bottom of probe (5), described chamber (7) is connected with a water sending device (9) by water pipe (11), described chamber (7) also is connected with an air-supply arrangement (10) by tracheae (13), be provided with water valve (12) on described water pipe (11), be provided with air valve (14) on described tracheae (13).
2. easy cleaned pH value measuring instrument according to claim 1, it is characterized in that described water sending device (9) is water pump, described air-supply arrangement (10) is blower fan, and described water sending device (9) and air-supply arrangement (10) are symmetricly set on the both sides of described housing (1).
3. easy cleaned pH value measuring instrument according to claim 1 and 2, is characterized in that described suction casing (2) is provided with a bubbling (15), and the bottom of described probe (5) is positioned at this bubbling (15).
4. easy cleaned pH value measuring instrument according to claim 3, is characterized in that described bubbling (15) top is provided with through hole (16).
5. easy cleaned pH value measuring instrument according to claim 4, is characterized in that described housing (1) top is provided with link (17).
6. easy cleaned pH value measuring instrument according to claim 4, the bottom that it is characterized in that described suction casing (2) is the angle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341545 CN203365374U (en) | 2013-06-16 | 2013-06-16 | PH value measuring instrument convenient to wash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341545 CN203365374U (en) | 2013-06-16 | 2013-06-16 | PH value measuring instrument convenient to wash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365374U true CN203365374U (en) | 2013-12-25 |
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ID=49813120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320341545 Expired - Fee Related CN203365374U (en) | 2013-06-16 | 2013-06-16 | PH value measuring instrument convenient to wash |
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| Country | Link |
|---|---|
| CN (1) | CN203365374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990960A (en) * | 2015-06-30 | 2015-10-21 | 佛山市云米电器科技有限公司 | TDS detector pen |
-
2013
- 2013-06-16 CN CN 201320341545 patent/CN203365374U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990960A (en) * | 2015-06-30 | 2015-10-21 | 佛山市云米电器科技有限公司 | TDS detector pen |
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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: 20131225 Termination date: 20140616 |
|
| EXPY | Termination of patent right or utility model |