CN105829878B - Electrode body and liquid relay part - Google Patents
Electrode body and liquid relay part Download PDFInfo
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- CN105829878B CN105829878B CN201480068962.9A CN201480068962A CN105829878B CN 105829878 B CN105829878 B CN 105829878B CN 201480068962 A CN201480068962 A CN 201480068962A CN 105829878 B CN105829878 B CN 105829878B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/401—Salt-bridge leaks; Liquid junctions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/36—Glass electrodes
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Abstract
The present invention, which provides one kind, can utilize simple structure, the liquid relay part easily replaced the electrode body of liquid socket part and used in the electrode body.Electrode body (100) has：The container (1) of tubulose forms the interior liquid receiving portion (2) of liquid (S1) in receiving, has the open opening portion (11) of interior liquid receiving portion (2)；Liquid socket part (3) makes the interior liquid (S1) being contained in interior liquid receiving portion (2) be oozed out to outside；And pole (51) in reference electrode, it is configured at the inside of the container.In the electrode body (100), liquid socket part (3) is made of liquid relay part (30), the liquid relay part (30) has the holding section (32) that engages with container (1), by by above-mentioned opening portion (11) it is closed in a manner of be detachably installed on container (1).
Description
Technical field
The present invention relates to one kind in the Electrochemical Detections such as pH detections, ion concentration detection, oxidation-reduction potential detection, makees
The electrode body used for the reference electrode or combination electrode of monopole and the liquid relay part used in the electrode body.
The present invention is based on December 18th, 2013 in the Patent 2013-261774 patent applications of Japanese publication and to advocate
Its priority quotes its content herein.
Background technology
Currently, the setting liquid socket part (junction) in reference electrode used in pH detections etc., by from the liquid socket part
The liquid (solution or its ingredient) into test solution exudation, to which interior electrode and test solution are electrically connected.
There are many kinds of class, the liquid socket part formed by porous part is widely used liquid socket part.Particularly, by as porous
The liquid socket part that the ceramics (porous ceramic) of the Porous of matter component are formed is widely used.The liquid socket part of porous ceramic is usual
For cylindrical (round bar shape), lower end of containers such as support tube of liquid receiving portion etc., is enclosed the wall of a container in formation
It is used in portion.
Additionally, there are the resins (Porous resin) such as polytetrafluoroethylene (PTFE) (PTFE) by the Porous as porous part
The liquid socket part (patent document 1) of formation.In addition, it is also proposed that by porous ceramic and Porous resin combination as liquid socket part
It uses (patent document 2).
Existing technical literature
Patent document
Patent document 1：No. 4234856 bulletins of Japanese Patent No.
Patent document 2：Japanese Unexamined Patent Publication 2012-47692 bulletins
Invention content
The subject that the invention solves
It is the major reason for the electric stability for influencing reference electrode across the seepage discharge of the interior liquid ingredient of liquid socket part.And
And since liquid socket part can be contaminated because using, sometimes for replacement.
But the liquid socket part formed by such as porous ceramic, generally fixedly enclose the container of liquid receiving portion in being formed
, in the wall portion being made of glass or binder etc., therefore can not easily replace.Therefore, it is necessary to the reference electricity together with monopole
The electrode body of pole or combination electrode is replaced together, will produce waste sometimes.Known main body (the electrode made relative to electrode body
Main body) detachable liquid socket part support body supports liquid socket part, the structure replaced together with liquid socket part supporter, but
This is not the structure only replaced to the liquid socket part for really needing replacement, therefore will produce waste because of construction sometimes.
On the other hand, in patent document 1, patent document 2, describe can by the liquid socket part formed by Porous resin from
The structure of the support tube dismounting of liquid receiving portion in being formed.But in this configuration, it is fixed by the component of nut type due to liquid socket part
In in formation on the support tube of liquid receiving portion, therefore the construction of electrode body is easy to complicate.
Therefore, the object of the present invention is to provide a kind of electricity that simple structure can be utilized easily to replace liquid socket part
Polar body and the liquid relay part used in the electrode body.
Above-mentioned purpose is realized by electrode body of the present invention and liquid relay part.Briefly, the present invention is a kind of electricity
Polar body, which is characterized in that have：The container of tubulose forms the interior liquid receiving portion of liquid in receiving, has and accommodates the interior liquid
The opening portion that portion opens；Liquid socket part is made of liquid relay part, which has the holding section engaged with the container,
By by the opening portion it is closed in a manner of be detachably installed on the container, which makes to be contained in the interior liquid and receives
Interior liquid in appearance portion is oozed out to outside；And pole in reference electrode, it is configured at the inside of the container.
According to other embodiments of the present invention, a kind of liquid relay part is provided, the liquid socket part of electrode body, the electrode are constituted
Body has：The container of tubulose forms the interior liquid receiving portion of liquid in receiving, has the opening for opening the interior liquid receiving portion
Portion；The liquid socket part makes the interior liquid being contained in the interior liquid receiving portion be oozed out to outside；Pole in reference electrode, configuration
In the inside of the container, which is characterized in that the liquid relay part has the holding section engaged with the container, is opened described
The closed mode detachable of oral area is in the container.
The effect of invention
Electrode body according to the present invention and the liquid relay part used in the electrode body, due to constituting the liquid of liquid socket part
Relay part detachable itself can utilize simple structure in the container of liquid receiving portion in formation, easily replace
Liquid socket part.In addition, the liquid relay part of multiple types by preparing different characteristics, so as to use mesh according to electrode body
, selection uses the liquid relay part with required characteristic.
Description of the drawings
Fig. 1 is the partial sectional view for the electrode body that one embodiment of the present of invention is related to.
Fig. 2 is the sectional view and vertical view of the liquid relay part used in the electrode body that one embodiment of the present of invention is related to
Figure.
Fig. 3 is the vertical view of an example for the liquid relay part for indicating multiple types.
Fig. 4 is the stereogram for the fixture for being used to dismount liquid relay part in one embodiment of the invention.
Fig. 5 is the partial sectional view for the electrode body that other embodiments of the invention are related to.
Wherein, the reference numerals are as follows：
1 outer tube (container)
Liquid receiving portion in 2
3 liquid socket parts
4 detecting electrodes
5 reference electrodes
30 liquid relay parts
100 combination electrodes (electrode body)
200 fixtures
The reference electrode (electrode body) of 300 monopoles
Specific implementation mode
Hereinafter, being illustrated in further detail to electrode body of the present invention and liquid relay part with reference to attached drawing.
Embodiment 1
1. electrode body
First, the overall structure for the electrode body being related to one embodiment of the present of invention illustrates.Fig. 1 is that the present invention relates to
And electrode body one embodiment partial sectional view.In the present embodiment, electrode body is set as the combination electrode of pH detections.
The electrode body 100 of the present embodiment has：The container 1 of tubulose, formed receiving reference electrode in liquid (hereinafter referred to as
" interior liquid ") S1 interior liquid receiving portion 2, there is the opening portion 11 that opens the interior liquid receiving portion 2；And liquid socket part 3, make receiving
Interior liquid S1 in interior liquid receiving portion 2 is oozed out to outside.Also, in the present embodiment, liquid socket part 3 is made of liquid relay part 30,
The liquid relay part 30 has the holding section 32 that engages with container 1, by by the opening portion 11 of container 1 it is closed in a manner of detachable
Ground is installed on container 1.
It is further illustrated, in the present embodiment, as the combination electrode 100 of electrode body, is integrally formed at one
It is rodlike with longer axis on direction, generally there is detecting electrode 4, reference electrode 5 and temperature sensor 6.
Detecting electrode (pH glass electrodes) 4 has：Induction part 41 is set as pH glass sense films；As in supporter
Pipe 42 supports induction part 41；And pole 43 in detecting electrode, it is the interior electrode being configured inside inner tube 42.In inner tube 42
Inside receiving detecting electrode in liquid S2, pole 43 is impregnated in the detecting electrode in liquid S2 in detecting electrode.In the present embodiment,
Inner tube 42 is the linear tubular part formed by glass, and the section observed along the axis direction of combination electrode 100 is big
Circle is caused, there is roughly the same internal diameter and outer diameter.Also, the inner tube 42 is configured along the axis direction of combination electrode 100,
The one end of the inner tube 42 welds hemispheric induction part 41 and them is made to be integrally formed.
Reference electrode 5 has：Outer tube 1 as container；Liquid relay part 30 constitutes liquid socket part 3；And in reference electrode
Pole 51 is the interior electrode being configured inside outer tube 1.In the cricoid space formed by outer tube 1, inner tube 42, liquid relay part 30
I.e. in interior liquid receiving portion 2, accommodate in liquid S1, pole 51 is impregnated in the interior liquid S1 in reference electrode.In the present embodiment, outer tube 1
It is the linear tubular part formed by the insulating elements such as resin or plastic cement (being in the present embodiment polysulfone resin), edge
The section of the axis direction observation of combination electrode 100 is roughly circular, has roughly the same internal diameter and outer diameter.Also, it should
Outer tube 1 is configured along the axis direction of combination electrode 100, will be in the opening portion that the one end of the axis direction of the outer tube 1 is arranged
11 closed modes are detachably equipped with liquid relay part 30.Detecting electrode 4 extends along the axis direction of outer tube 1, and
The induction part 41 of detecting electrode 4 exposes to the external of liquid relay part 30.It is aftermentioned to say in more detail about liquid relay part 30
It is bright.
As the ingredient of interior liquid S1, potassium chloride (KCl) can be used.Most commonly used is high concentration (3mol/L~saturation)
KCl solution.In the present embodiment using saturation KCl solution.Interior liquid S1 can also be added as needed on Tackifier materials and become
Gel or sol form.Herein, the case where making interior liquid S1 ooze out via liquid socket part 3, including making interior liquid S1 as solution
The case where outflow and only make interior liquid S1 at any case distributed in the case of (diffusion).
Temperature sensor 6 is immersed in the interior liquid S1 being contained in interior liquid receiving portion 2.
Pole 43 in detecting electrode from detecting electrode 4, reference electrode 5 reference electrode in pole 51 and temperature sensor 6
Each signal, outside is transferred to by lead 8 across the inside of electrode cap 7.
2. liquid relay part
In the following, being illustrated to the liquid relay part 30 in the present embodiment.Fig. 2 is the liquid illustrated in greater detail in the present embodiment
The sectional view and vertical view of relay part 30.Fig. 2 (a) is the line A-A sectional view in Fig. 2 (c), and Fig. 2 (b) is the B- in Fig. 2 (c)
B line sectional views, Fig. 2 (c) are the vertical views from axis direction of the lower section in Fig. 1 along combination electrode 100.
In the present embodiment, opening portion 11 envelope of the liquid relay part 30 will be arranged in the one end of the axis direction of outer tube 1
The mode closed, the axis direction detachable along outer tube 1 is in outer tube 1.In the present embodiment, due to matching in the inside of outer tube 1
Detecting electrode 4 is set, therefore liquid relay part 30 is set as the endless member with ladder, and with the through-hole 38 for keeping detecting electrode 4 interspersed.
It is further illustrated, liquid relay part 30 has：Small diameter portion 31 forms as with outer tube 1 in peripheral surface and engages
Holding section external screw thread (threaded portion) 32；And large-diameter portion 33, it is comparably major diameter with small diameter portion 31.Outside liquid relay part 30
The internal thread (threaded portion) 12 that screw thread 32 is formed as holding section with the inner peripheral surface near the opening portion of outer tube 1 11 screws togather.
In addition, the outer diameter of the peripheral surface of large-diameter portion 33, roughly equal with the internal diameter of the inner peripheral surface adjacent with opening portion 11 of outer tube 1, lead to
It crosses and screws togather external screw thread 32 and internal thread 12, to which large-diameter portion 33 is entrenched in outer tube 1.In addition, on liquid relay part 30, with edge
The axis direction of outer tube 1 runs through the mode of small diameter portion 31 and large-diameter portion 33, forms through-hole 38.The internal diameter and detecting electrode of through-hole 38
The outer diameter of 4 inner tube 42 is roughly equal, and when installing liquid relay part 30 to outer tube 1, the induction part 41 of detecting electrode 4, which passes through, to be led to
Hole 38 and expose to the external of liquid relay part 30.In addition, what the peripheral surface in small diameter portion 31 Yu the boundary portion of large-diameter portion 33 was formed
In 1st groove portion 34a, 1O type sealing ring 35a as a seal part are installed, by the interstitial fluid of outer tube 1 and liquid relay part 30
Seal to close property.Also, in the 2nd groove portion 34b for being formed in the inner peripheral surface of through-hole 38,2O types as a seal part are installed
Sealing ring 35b is sealed fluid tight between detecting electrode 4 and liquid relay part 30.
In liquid relay part 30, the 1st end face 36 of 31 side of small diameter portion is contacted with the interior liquid S1 in interior liquid receiving portion 2, large-diameter portion
2nd end face 37 of 33 sides is contacted with test solution (sample).Also, whole expansions of the interior liquid S1 from the 1st end face 36 to liquid relay part 30
It dissipates, is then oozed out to external test solution.Pole 51 is conducted with test solution realization in reference electrode as a result,.
As described above, according to the present embodiment, the liquid socket part 3 of reference electrode 5 is by can easily dismount the liquid in electrode body
Relay part 30 is constituted.Combination electrode 100 is simple structure as a result, inferior the case where liquid socket part 3 is polluted because using, can
Easily only to replace the liquid socket part 3 for really needing replacement.In addition, so-called only replace liquid socket part 3, include not only to replace to constitute liquid
All components (associate members such as liquid relay part 30 and other seal members 35a, 35b for be made of porous part) of socket part 3,
It also include the liquid relay part 30 only replaced essentially as the main body of liquid socket part 3.In addition, according to the present embodiment, due to liquid socket part
Part 30 constitutes the lid of interior liquid receiving portion 2, therefore for example when replacing liquid relay part 30, or merely by 30 conduct of liquid relay part
It covers and dismantles, interior liquid S1 can be supplemented to (filling) to interior liquid receiving portion 2 or replace interior liquid S1.
Herein, in the present embodiment, liquid relay part 30 has：1st liquid socket part divides 30A, is made by Porous resin,
It is formed with external screw thread 32；And the 2nd liquid socket part divide 30B, made by porous ceramic, to divide the side of 30A through the 1st liquid socket part
Formula is embedded to the 1st liquid socket part and divides in 30A.In the present embodiment, divide 30A in the cricoid 1st liquid socket part as previously described with ladder
In, run through from a manner of the 1st liquid socket part of the 1st end face 36 until the 2nd end face 37 divides 30A by the axis direction along outer tube 1,
2nd liquid socket part of embedment column (being in the present embodiment cylinder) divides 30B.As described later, the 2nd liquid socket part divides the quantity of 30B
Can be individually or multiple.In the example shown in Fig. 2,2 the 2nd liquid socket parts divide 30B be configured at across through-hole 38 and
Opposite position.Interior liquid S1 divides 30A, the 2nd liquid socket part to divide 30B and is oozed out to test solution across the 1st liquid socket part.
In this way, in the present embodiment, liquid relay part 30 be set as by the 1st liquid socket part formed by Porous resin divide 30A and
Divide the 30B combination constructions (mixed liquor relay part) being composed by the 2nd liquid socket part that porous ceramic is formed.By Porous resin
The 1st liquid socket part formed divides 30A, the usual porosity or aperture to be easy to become uneven, and aperture be easy to vary with temperature and
Variation, the seepage discharge of interior liquid S1 are easily varied, but the liquid level easy to increase that connects accumulates.In contrast, the 2nd formed by porous ceramic
Liquid socket part divides 30B to be generally difficult to make to connect liquid level product to become larger, but the porosity or aperture are relatively uniform, and aperture is not easy to become with temperature
Change and change, the seepage discharge of interior liquid S1 is not easy to change.Therefore, by the way that liquid relay part 30 is set as combination construction, even if in the 2nd liquid
Socket part divides bubbles attached or dirt on 30B, also can seldom occur simultaneously the 1st liquid socket part divide 30A bubbles attached on the whole or
The case where dirt, can prevent the case where reference electrode 5 becomes unable to use suddenly.In addition, even if because of temperature change etc.
Liquid S1 divides the seepage discharge of 30A to change from the 1st liquid socket part in reason, also due to utilizing the interior liquid for dividing 30B across the 2nd liquid socket part
Exudation and be easy to get electric stability, therefore can prevent reference electrode 5 suddenly become unable to use the case where.This
Outside, divide 30A by the 1st liquid socket part that Porous resin is formed, liquid level product is connect due to that can increase, even if locally generating gas
The attachment (mesh obstruction) of bubble or dirt, is not easy to involve entirety, therefore can use longer time.
In addition, according to the present embodiment, since liquid relay part 30 can easily be dismounted in electrode body, pass through preparation
The liquid relay part 30 of multiple types of different characteristics, can be according to the use purpose (type of test solution) of electrode body, from wherein
Selection uses the liquid relay part 30 with required characteristic.
That is, liquid socket part is usually designed to the single use purpose for being most suitable for electrode body.But such as pH detections answer
The detection object of the electrode bodies such as composite electrode is ambient water, plumbing, draining, process water etc., various, it is difficult to one kind
The liquid socket part reply of class all detects object.It, can only (low liquid connects the resistance to height of asymmetrical potential in performance in addition, in many cases
Warm high pressure) weighed between electrode life.The liquid socket part formed by Porous resin, usually to by oil contamination or fine particle
Attachment caused by dirt resistance it is strong, but the diffusional stability of interior liquid is low, and it is larger that liquid connects asymmetrical potential.On the other hand, by
The liquid socket part that porous ceramic is formed, liquid connect that asymmetrical potential is smaller, and the test solution of low conductivity is stablized, but by grease dirt
Object or particle shape polluter easily cause clogging.Herein, such as by the Porous PTFE shapes as Porous resin
At liquid socket part, KCl particles can be mixed in PTFE and be sintered and manufacture, pass through control KCl particles granularity and proportioning, energy
It is enough that the gentle porosity in aperture is adjusted, and then the balance between regulation performance and service life.In addition, by making pottery as such as Porous
The liquid socket part that the Porous aluminium oxide of porcelain is formed can be to the gentle hole in aperture by controlling the granularity and sintering temperature of aluminium oxide
Rate is adjusted, and then the balance between regulation performance and service life.
Therefore, by (1) make by the 1st liquid socket part that Porous resin is formed divide 30A type (such as aperture, the porosity,
At least one of shape and size) different, (2) make the type (example for dividing 30B by the 2nd liquid socket part that porous ceramic is formed
Such as at least one of aperture, the porosity, quantity, shape and size) different or (3) both make it is different, so as to
The various liquid relay parts 30 being adapted using purpose of design and electrode body.Divide the shape or ruler of 30A as the 1st liquid socket part
It is very little, such as the differences such as length (opening portion to external exposing amount) on the direction of the axis direction of container 1 can be made.This
Outside, the shape or size of 30B are divided as the 2nd liquid socket part, the section in the direction that the axis direction with container 1 intersects can be made
The differences such as shape or diameter.
For example, respectively as shown in Fig. 3 (a)~(c), prepare by the 2nd liquid socket part divide the quantity of 30B be changed to 1,2,4
The liquid relay part 30 of this 3 types.In this case, typically, the 2nd liquid socket part divides the quantity of 30B more (that is, the 2nd liquid socket part
Point 30B's connects that liquid level product is bigger, the 1st liquid socket part divide 30A to connect liquid level product smaller), can more be positioned at performance priority.On the contrary
Ground, the 2nd liquid socket part divide the quantity of 30B it is fewer (that is, the 2nd liquid socket part divide 30B connect liquid level product it is smaller, the 1st liquid socket part divides 30A's
It is bigger to connect liquid level product), it is preferential can be more positioned at the service life.It, can be in addition, confirm that the 2nd liquid socket part divides the quantity of 30B in this way
Confirm it is that performance priority or service life are preferential from outside, user can easily select required liquid relay part 30.
For example, dividing the material of 30A as the 1st liquid socket part, fluororesin, polyvinyl resin, acrylic resin can be used.Example
Such as, as fluororesin, PTFE (polytetrafluoroethylene (PTFE)) can be included, (tetrafluoroethylene-perfluoro alkoxy vinyl ethers are copolymerized PFA
Object), FEP (fluorinated ethylene propylene copolymer), ETFE (ethylene-tetrafluoroethylene copolymer) etc..The fluororesin such as PTFE are due to having
Hydrophobicity, even if therefore expand keeping aperture larger or making to connect liquid level product, seepage discharge will not be excessive, compares reason in this regard
Think.In addition, with hydrophobicitys, aperture increases can be made, area can be made to expand, from preventing the clogging caused by dirt etc.
From the perspective of it is also advantageous.PTFE has been used in the present embodiment.1st liquid socket part divides 30A generally can be by with lower section
Formula makes, that is, mixes the KCl powder after PTFE powder and the identical drying of grain size with defined mixed proportion, uses mold
Pressure sintering is carried out, after implementing mechanical processing (machining etc.) as needed, is immersed in water (or hot water) to dissolve
Remove the KCl in PTFE.In addition, using polyvinyl resin or acrylic resin, generally, can utilize makes respectively
The only surface layer of a raw material powder nearby melts (sintering), and the existing gap between raw material powder is made to retain and the methods of straight forming
Make porous part.
For example, dividing the material of 30B as the 2nd liquid socket part, according to the difference of ceramic composition, alumina series, oxygen can be enumerated
Change the various ceramics such as cerium system, magnesia system, zirconium oxide system, uses the ceramics of alumina series in the present embodiment.It is commercially available porous
Matter ceramics are with the porosity appropriate or aperture for the liquid socket part as the reference electrode in Electrochemical Detection.Such as such as
Lower described, the 2nd liquid socket part is divided 30B that can be embedded to the 1st liquid socket part and is divided in 30A.That is, in the 1st liquid socket part formed as described above point
The desired position of 30A, through hole is got through using mechanical processing, and the internal diameter of the through hole divides the circle of 30B with the 2nd liquid socket part is constituted
The outer diameter of cylindrical porous ceramic is compared to smaller.Also, cut out the porous of specific length by 30B is divided as the 2nd liquid socket part
Matter ceramics are pressed into the through hole along the length direction of the through hole.As a result, the 1st liquid socket part divide 30A and the 2nd liquid socket part divide 30B by
It is close to and fixes in friction engaging.
3. the dismounting of liquid relay part
In the present embodiment, as described above, liquid relay part 30 via outer tube 1 internal thread 12 and liquid relay part 30 it is outer
Screw thread 32 is screwed togather with outer tube 1.Also, in the present embodiment, as shown in Figure 1, when liquid relay part 30 is installed on outer tube 1, liquid connects
2nd end face 37 of component 30 is configured to be located substantially at same plane with the plane including the opening portion 11 comprising outer tube 1.In the shape
Under state, for by liquid relay part 30 dismounting in outer tube 1 and with finger etc. pinch liquid relay part 30 make its rotate operation it is more difficult.
Therefore, in the present embodiment, as shown in Fig. 2, liquid relay part 30, on the axis direction of outer tube 1 in
On the end face of 2 opposite side of liquid receiving portion i.e. the 2nd end face 37, the connecting hole 39 as rotary force transfer part, the connecting hole are formed
39 pairs of rotary forces for coming from the component for making liquid relay part 30 rotate transmit.The quantity of connecting hole 39 can individually also may be used
To be multiple.In the present embodiment, connecting hole 39 is at the 2nd end face 37 of liquid relay part 30, around through-hole 38 with roughly equal
Angle interval formed 4.The connecting hole 39 is formed in the 1st liquid socket part in a manner of avoiding the 2nd liquid socket part and divide 30B and divides on 30A.
Fig. 4 is the vertical of an example of the fixture 200 in order to use the dismounting of liquid relay part 30 in the present embodiment in outer tube 1
Body figure.It is linear tubular part, outer diameter and liquid relay part that the fixture 200, which has fixture main body 201, the fixture main body 201,
The outer diameter of 30 the 2nd end face 37 is roughly equal, and internal diameter and the outer diameter of the inner tube 42 of detecting electrode 4 are roughly equal or bigger than its.
In addition, the fixture 200, which has, is set to the card of connecting hole 39 on an end face 202 of fixture main body 201, with liquid relay part 30
The snap fit tabs 203 of conjunction.In the present embodiment, it is 4 that snap fit tabs 203 are correspondingly arranged with connecting hole 39.
When liquid relay part 30 to be installed on outer tube 1, liquid relay part 30 is pinched with finger etc. and is threaded onto to outer tube 1
After midway or since original state, the snap fit tabs 203 for making fixture 200 engage with the connecting hole 39 of liquid relay part 30,
Rotary fixture 200.The rotary force of fixture 200 is transferred to liquid relay part 30 via snap fit tabs 203 and connecting hole 39.In this way, logical
Cross makes liquid relay part 30 rotate using fixture 200, so as to be threaded onto outer tube 1.At this point, as liquid relay part 30 enters outer tube
1, across liquid relay part 30 through-hole 38 and from the 2nd end face 37 protrude detecting electrode 4, retreat to the central aperture portion of fixture 200
In 204, therefore operation will not be interfered.When removing liquid relay part 30 from outer tube 1, as long as substantially carrying out and above-mentioned installation phase
Anti- operation.
More than, according to the present embodiment, due to constituting the liquid relay part 30 of liquid socket part 3 detachable itself in liquid in formation
The outer tube (container) 1 of receiving portion 2, therefore can easily replace liquid socket part 3 using simple structure.In addition, special by preparing
Property different multiple types liquid relay part 30, can be selected using required characteristic according to the use purpose of electrode body 100
Liquid relay part 30.
Embodiment 2
In the following, being illustrated to other embodiments of the invention.In the present embodiment, electrode body is set as the reference electricity of monopole
Pole.
Fig. 5 is the partial sectional view of the reference electrode 300 as the electrode body in the present embodiment.In Figure 5, for having
Same label is marked with function, the element of structure of the combination electrode 100 in embodiment shown in FIG. 1 identically or comparably, is saved
Slightly it is described in detail.
The reference electrode 300 of the present embodiment is roughly equivalent to eliminate the combination electrode in the embodiment 1 of detecting electrode 4
100.In the present embodiment, the liquid socket part 3 of reference electrode 300 is made of liquid relay part 30,30 detachable of liquid relay part
Ground is installed on the support tube 1 as the container of liquid receiving portion 2 in formation.In the present embodiment, it on liquid relay part 30, does not set
Set the through-hole 38 being arranged in embodiment 1 in order to intert detecting electrode 4.
In this way, the present invention can be suitable for the reference electrode of monopole, effect same as Example 1 can be obtained.
It is other
According to specific embodiment, the present invention is described above, but the present invention is not limited to above-described embodiments.
For example, in formation in the container of liquid receiving portion, can also be arranged on the direction to intersect with its axis direction
Liquid relay part maintaining part extend, with opening portion is configured to that liquid relay part detachable is made to keep in the liquid relay part
Portion.Wherein, as shown in above-described embodiment, make liquid relay part detachable in the opening portion of the end of tubular container, thus make
It must construct extremely simple, and manufacture can be made to be more prone to.
In addition, in the above-described embodiments, liquid relay part is screwed togather with the container for forming interior liquid receiving portion, but container and liquid socket part
The snap fit of part is not limited to screw togather.For example, can be engaged liquid using friction by the way that liquid relay part to be pressed into container
Relay part and container are fixed (indentation inserted type).Furthermore, it is possible to by by the recess portion being set on container (or protrusion) with set
The protrusion (or recess portion) being placed on liquid relay part is resiliently snapped, to fix (buckle-type) liquid relay part and container.This
Outside, container and liquid socket part can be made in the state of misplacing between making the multiple claws being respectively arranged on container and liquid relay part
Part is close, then turns opposite to container and liquid relay part, makes to engage between the claw of the two, thus by liquid relay part and appearance
Device is fixed (bayonet type).
In addition, in the above-described embodiments, liquid relay part be set as with the 1st liquid socket part point formed by Porous resin and by
The combination construction for the 2nd liquid socket part point that porous ceramic is formed.By making liquid relay part be combination construction, can obtain above-mentioned has
Beneficial effect, but liquid relay part is not limited to combination construction.For example, in above-described embodiment can not also be arranged in liquid relay part
2 liquid socket parts point make entirety be made by Porous resin in the same manner as the 1st liquid socket part in above-described embodiment point.
In addition, in the above-described embodiments, the end face of the test solution side of liquid relay part is configured to, include opening portion with container
Plane inside is located substantially on same plane, and but not limited to this.The end face of the test solution side of liquid relay part can configure
Inside in the opening portion of container can also be configured at its outside.It is configured at container in the end face of the test solution side of liquid relay part
Opening portion on the outside of in the case of, can further increase liquid socket part connects liquid level product, and can be easier to be pinched with finger etc.
Firmly carry out disassembling operations.
In addition, the present invention can also be applied to the differential sensor well known to the art.For example, difference pH sensings
Utensil has 2 pH glass electrodes, a pH glass electrode to be used as detecting electrode, another pH glass electrode is set as reference electricity
Pole.The pH glass electrodes of reference electrode are set as, are immersed in the pH buffer solutions for being contained in electrode chamber, via adjacent with electrode chamber
The salt bridge room of setting is conducted with test solution realization.Ginseng is constituted by these salt bridge rooms, electrode chamber, the indoor pH glass electrodes of electrode
Compare electrode.Also, above-mentioned salt bridge room, which becomes, has the interior liquid receiving portion of liquid, the liquid socket part of test solution side, electrode chamber side in receiving
The biliquid of liquid socket part connect construction.Therefore, by least forming the interior liquid receiving portion of salt bridge room by container according to the present invention, and
And the liquid socket part by constituting the test solution side that biliquid connects in construction according to the liquid relay part of the present embodiment, so as to constitute basis
The electrode body of the present invention.In addition, it is not limited to differential sensor, such as in the reference electrode of monopole or the ginseng of combination electrode
It, can also be as described above using the present invention in the case of connecing construction using biliquid than electrode.Construction is being connect using biliquid
In the case of, as long as the chemical species of interior liquid carrying charge, can also use KNO3Deng.
In addition, in the above-described embodiments, so that detecting electrode is illustrated the case where being pH detections electrode, but this hair
It is bright that it's not limited to that.As detecting electrode, pH detections electrode, ion concentration detection electrode, oxidation may be exemplified also
Former current potential detection electrode.Electrode body according to the invention, such as can be detected with these pH detections electrodes, ion concentration
The reference electrode for the monopole being used together with electrode with electrode, oxidation-reduction potential detection or it is provided integrally with these detections
The combination electrode of electrode and reference electrode.
Claims (6)
1. a kind of electrode body, which is characterized in that have：
The container of tubulose forms the interior liquid receiving portion of liquid in receiving, has the opening portion for opening the interior liquid receiving portion；
Liquid socket part is made of liquid relay part, which has the holding section engaged with the container, the liquid relay part
By by the opening portion it is closed in a manner of detachably install to the container, which makes to be contained in the interior liquid and receives
Interior liquid in appearance portion is oozed out to outside；And
Pole in reference electrode is configured at the inside of the container,
Wherein, the opening portion is set to the one end of the axis direction of the container, and the liquid relay part is along the container
Axis direction detachable is in the container, and the liquid relay part is screwed togather with the container, in the axis side with the container
The end face of the upward interior liquid receiving portion opposite side forms the rotary force transmitted to the rotary force applied in dismounting
Transfer part.
2. electrode body according to claim 1, which is characterized in that
The inside of the container is configured with the detecting electrode extended along the axis direction of the container, and the liquid relay part is that have
The endless member for the through-hole for keeping the detecting electrode interspersed.
3. electrode body according to claim 1 or 2, which is characterized in that
The liquid relay part has：1st liquid socket part point, is made by Porous resin, is formed with the rotary force transfer part；With
And the 2nd liquid socket part point, it is made by porous ceramic, the 1st liquid socket part is embedded in a manner of through the 1st liquid socket part point
In point.
4. a kind of liquid relay part, constitutes the liquid socket part of electrode body, which has：The container of tubulose is formed in receiving
The interior liquid receiving portion of liquid has the opening portion for opening the interior liquid receiving portion；The liquid socket part makes to be contained in the interior liquid
Interior liquid in receiving portion is oozed out to outside；Pole in reference electrode is configured at the inside of the container,
It is characterized in that,
The liquid relay part has the holding section engaged with the container, will be set in the one end of the axis direction of the container
The closed mode in the opening portion set, the axis direction detachable along the container in the container,
The liquid relay part is screwed togather with the container, with the interior liquid receiving portion opposite one on the axis direction of the container
On the end face of side, it is formed with the rotary force transfer part transmitted to the rotary force applied in dismounting.
5. liquid relay part according to claim 4, which is characterized in that
The liquid relay part be the cricoid component with through-hole, be configured at the inside of the container and along the axis of the container
The detecting electrode that direction extends is interspersed from the through-hole.
6. liquid relay part according to claim 4 or 5, which is characterized in that
The liquid relay part has：1st liquid socket part point, is made by Porous resin, is formed with the rotary force transfer part；With
And the 2nd liquid socket part point, it is made by porous ceramic, the 1st liquid socket part is embedded in a manner of through the 1st liquid socket part point
In point.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-261774 | 2013-12-18 | ||
| JP2013261774 | 2013-12-18 | ||
| PCT/JP2014/083558 WO2015093563A1 (en) | 2013-12-18 | 2014-12-18 | Electrode unit and liquid junction member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105829878A CN105829878A (en) | 2016-08-03 |
| CN105829878B true CN105829878B (en) | 2018-11-13 |
Family
ID=53402905
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480068962.9A Expired - Fee Related CN105829878B (en) | 2013-12-18 | 2014-12-18 | Electrode body and liquid relay part |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6319324B2 (en) |
| CN (1) | CN105829878B (en) |
| WO (1) | WO2015093563A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6409500B2 (en) * | 2014-10-24 | 2018-10-24 | 東亜ディーケーケー株式会社 | Composite electrode |
| JP6918680B2 (en) * | 2017-10-27 | 2021-08-11 | ラピスセミコンダクタ株式会社 | Reference electrode |
| JP2020115091A (en) * | 2019-01-17 | 2020-07-30 | 西日本電信電話株式会社 | Reference electrode |
| CN111157587B (en) * | 2019-12-30 | 2021-02-23 | 中国人民解放军军事科学院国防科技创新研究院 | Conductivity sensor for microgravity environment |
| DE102022119794A1 (en) | 2022-08-05 | 2024-02-08 | Endress+Hauser Conducta Gmbh+Co. Kg | Reference half cell and sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134140A (en) * | 1965-06-18 | 1968-11-20 | Beckman Instruments Inc | Electrochemical electrode assembly |
| CN2055255U (en) * | 1989-08-29 | 1990-03-28 | 荣仁本 | High temp. high pressure sterilization ph sensor |
| CN2650126Y (en) * | 2003-09-29 | 2004-10-20 | 上海精密科学仪器有限公司 | Composite electrode for measuring pH value |
| CN102735730A (en) * | 2011-03-31 | 2012-10-17 | 株式会社堀场制作所 | Electrode assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737255A (en) * | 1980-08-16 | 1982-03-01 | Horiba Ltd | Manufacture of electrochemical reference electrode liquid junction |
| FI81678C (en) * | 1987-09-08 | 1990-11-12 | Valtion Teknillinen | SPETSSTRUKTUR FOER EN REFERENSELEKTROD. |
| US4891125A (en) * | 1989-04-12 | 1990-01-02 | Abbott Laboratories | Reference electrode and method of making it |
| JPH0682562U (en) * | 1993-05-06 | 1994-11-25 | 横河電機株式会社 | Tip exchange type composite electrode |
| JP5402881B2 (en) * | 2010-08-30 | 2014-01-29 | 東亜ディーケーケー株式会社 | Electrode body |
-
2014
- 2014-12-18 JP JP2015553600A patent/JP6319324B2/en active Active
- 2014-12-18 CN CN201480068962.9A patent/CN105829878B/en not_active Expired - Fee Related
- 2014-12-18 WO PCT/JP2014/083558 patent/WO2015093563A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134140A (en) * | 1965-06-18 | 1968-11-20 | Beckman Instruments Inc | Electrochemical electrode assembly |
| CN2055255U (en) * | 1989-08-29 | 1990-03-28 | 荣仁本 | High temp. high pressure sterilization ph sensor |
| CN2650126Y (en) * | 2003-09-29 | 2004-10-20 | 上海精密科学仪器有限公司 | Composite electrode for measuring pH value |
| CN102735730A (en) * | 2011-03-31 | 2012-10-17 | 株式会社堀场制作所 | Electrode assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015093563A1 (en) | 2015-06-25 |
| JPWO2015093563A1 (en) | 2017-03-23 |
| CN105829878A (en) | 2016-08-03 |
| JP6319324B2 (en) | 2018-05-09 |
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