CN202274978U - Liquid leakage detection device and base of liquid leakage detection device - Google Patents
Liquid leakage detection device and base of liquid leakage detection device Download PDFInfo
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- CN202274978U CN202274978U CN2011204007209U CN201120400720U CN202274978U CN 202274978 U CN202274978 U CN 202274978U CN 2011204007209 U CN2011204007209 U CN 2011204007209U CN 201120400720 U CN201120400720 U CN 201120400720U CN 202274978 U CN202274978 U CN 202274978U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
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Abstract
The utility model relates to a liquid leakage detection sensor and a base of the liquid leakage detection sensor. The liquid leakage detection sensor comprises a casing, and a base mounted on the bottom of the casing, wherein a fit surface tightly fit with the bottom of the casing, and a liquid guide section concavely arranged on the back side of the fit surface are arranged on the base; and a light projecting component and a light receiving component are accommodated in the casing. Light emitted from the light projection component is received by the light receiving component through the liquid guide section so as to determine whether a liquid exists in the liquid guide section or not according to the light reception amount. An air hole penetrating through the liquid guide section to the upper surface of the base is formed on the base; and a groove extending from the air hole to the outer edge of the fit surface is formed on the upper surface of the base. According to the utility model, a liquid is conveniently led into the liquid guide section by the liquid leakage detection device.
Description
Technical field
The utility model relates to the base station of a kind of apparatus for testing weeping and this apparatus for testing weeping, and this apparatus for testing weeping detects leakage that for example spills from the manufacturing installation of production line or the leakage that spills from the pipe arrangement to the manufacturing installation feed fluid.
Background technology
In the past; As this apparatus for testing weeping; Known for example have a disclosed apparatus for testing weeping in the TOHKEMY 2004-53560 communique, and this apparatus for testing weeping is for example carried puts being provided with on the face of manufacturing installation below, detects to be immersed in this liquid between face and the apparatus for testing weeping is set.Say that at length apparatus for testing weeping has housing, taken in light-projecting component and photo detector in the housing, and housing has light transmission.On the detection faces (with the opposed lower surface of the face that is provided with) of this housing, be concaved with the liquid importing portion that is used to import liquid.And the light that penetrates from light-projecting component is received light through the liquid importing portion of housing by photo detector, according to this light income, in the tracer liquid importing portion no liquid is arranged.
In the apparatus for testing weeping of above-mentioned that kind, need according to for example as the kind of the liquid of detected object, change the setting of shape etc. of the detection faces of housing.So, in order to improve the versatility of housing, consider at housing and the base station that setting has light transmission between the face be set, liquid importing portion is formed on base station with the opposed lower surface of the face that is provided with on, rather than be formed on the housing.In this structure, have in change under the situation of structure of detection faces of liquid importing portion, because if the change base station, so can under the situation that does not change shell structure, tackle the detection of various liquid.
In addition, in this apparatus for testing weeping, easily be immersed in liquid importing portion, consider on base station, to form the structure that extends through the airport of housing lower surface from liquid importing portion in order to make liquid.But, mutual opposed driving fit of base station and housing.Therefore, airport is sealed with the opposed end face of base station by housing, and existence can not make the air in the liquid importing portion flow into the problem of airport well.
The utility model content
The purpose of the utility model is, provides a kind of liquid that can make easily to be immersed in apparatus for testing weeping and the base station of apparatus for testing weeping in the liquid importing portion.
In order to achieve the above object, first mode of the utility model relates to a kind of apparatus for testing weeping, is set on the face of setting, possesses: sensor main body portion possesses light-projecting component and photo detector having light transmission and have in the housing of lower surface; And base station; Has light transmission; Be set at the said lower surface and said the setting between the face of said housing; The liquid importing portion that said base station has the closed surface that is positioned at the base station upper surface and said lower surface driving fit said housing and on the face of the said closed surface opposition side of base station, is arranged with; The light that penetrates towards the said lower surface of said housing from said light-projecting component is accepted by said photo detector through said liquid importing portion; Detecting in the said liquid importing portion according to the light income of photo detector has no liquid; On said base station, be formed with the airport that extends through said base station upper surface from said liquid importing portion, at least one side of the said lower surface of the said upper surface of said base station and said housing, be formed with groove, the light path of the light that this groove is avoided penetrating from said light-projecting component and extend to the outer edge of said closed surface from said airport.
And in the apparatus for testing weeping of first mode of the utility model, said groove is formed on the said upper surface of said base station.
And in the apparatus for testing weeping of first mode of the utility model, said groove has: shallow bottom, be formed on the upper surface of said at least liquid importing portion opposition side of said base station, and continuous with said airport; And dark bottom, the outer edge that forms said shallow bottom and said closed surface is communicated with, and the said shallow bottom of depth ratio is big.
And in the apparatus for testing weeping of first mode of the utility model, said liquid importing portion extends along said groove when overlooking, and the cross sectional shape of overlooking of said airport forms the slotted hole shape that extends along said liquid importing portion.
And in the apparatus for testing weeping of first mode of the utility model, said base station can be changed with respect to said sensor main body portion.
Second mode of the utility model relates to a kind of base station of apparatus for testing weeping; This apparatus for testing weeping has the housing that light-projecting component and photo detector are taken in; This base station has light transmission; Be set at the lower surface of said housing and be provided with between the face, and have the opposed upper surface of said lower surface with said housing, this base station have be positioned at upper surface, with the closed surface of the said lower surface driving fit of said housing and the liquid importing portion that on the face of the said closed surface opposition side of base station, is arranged with; It is characterized in that; Be formed with the airport that extends through said base station upper surface from said liquid importing portion, be formed with groove, the light path of the light that this groove is avoided penetrating from said light-projecting component and extend to the outer edge of said closed surface from said airport at said base station upper surface.
The utility model effect
According to the utility model, when entering into liquid between the face of setting and the base station and be immersed in liquid importing portion, the air in this liquid importing portion is discharged into the outside of the closed surface of base station through slot part from airport.Therefore, liquid is immersed in the liquid importing portion.
Description of drawings
Fig. 1 is the synoptic diagram of an example of purposes of the related leakage detecting sensor of an embodiment of expression the utility model.
Fig. 2 is the stereographic map of the leakage detecting sensor of presentation graphs 1.
Fig. 3 is the exploded perspective view of the leakage detecting sensor of presentation graphs 2.
Fig. 4 is the stereographic map of sensor main body portion of the leakage detecting sensor of presentation graphs 2.
Fig. 5 (a) is the vertical view of expression base station, and Fig. 5 (b) is the sectional view along the 5b-5b line of figure (a).
Fig. 6 is the side view of sensor main body portion and base station.
Fig. 7 is the upward view of expression leakage detecting sensor.
Fig. 8 is the synoptic diagram that is used to explain the circuit of the light that penetrates from light-projecting component.
Fig. 9 is the cut-open view that schematically shows the airport periphery of base station.
Embodiment
Below, according to accompanying drawing, the liquid detecting sensor of an embodiment of the utility model is described.
As shown in Figure 1, leakage detecting sensor 1 is installed on the face that the is provided with P of the manufacturing installation D below in the factory through bolt (omitting diagram), detects the leakage from manufacturing installation D.As shown in Figures 2 and 3, leakage detecting sensor 1 has: sensor main body portion 11; Base station 12 is between being provided with between face P and the sensor main body portion 11; And holding member 13, sensor main body portion 11 is fixed on is provided with on the face P, and base station 12 is kept.
Sensor main body portion 11 has: the round-ended cylinder shape is roughly arranged, be the housing 14 of cap (cap) shape; Lid 15 with the top watertightness ground sealing of housing 14; And the cable 16 of deriving from housing 14.Housing 14 has columnar peripheral part 21 and with the bottom 22 of the lower end of peripheral part 21 sealing.On upper ends peripheral part 21, bottom 22 opposition sides of housing 14, be formed with opening 14a.Opening 14a is by roughly discoid lid 15 (referring to Fig. 8) sealing.In addition, housing 14, lid 15 and said base station 12 are formed by the fluororesin such as (perfluoroalkoxy resins) of the PFA with light transmission, thermotolerance and resistance to chemical reagents.In addition, the opening 14a of lid 15 and housing 14 is by laser bonding.
On the rearward end of the fore-and-aft direction X of the peripheral part 21 of housing 14, be formed with roughly rectangular outstanding base portion 24.On base portion 24, be formed with and be roughly cylindric outstanding cable leading-out portion 23.Cable 16 exports to the outside of housing 14 from cable leading-out portion 23.
On holding member 13, be formed with fixed part 31.On fixed part 31, be formed with the bolt insertion hole 31a that is used to insert fixed-use bolt.Be formed with on the fixed part 31 to above the incorporating section 32 of extending, the cable leading-out portion 23 of sensor main body portion 11 is taken in incorporating section 32.Extend a pair of retention tab 33 from this incorporating section 32, the base portion 24 of 33 pairs of housings 14 of retention tab keeps.
In addition, be formed with on the base station 12 a pair of outer rim from base station 12 to above outstanding card end protuberance 12b.These cards end card that protuberance 12b is formed on peripheral part 21 lower ends of housing 14 and end recess 21a and along the circumferential direction block and end, thereby restriction base station 12 along the circumferential direction rotates with respect to housing 14.
On this base station 12, and the opposed lower surface of face P is set becomes detection faces 12c.Shown in Fig. 3 and Fig. 5 (a), on the upper surface (with housing 14 opposed upper surface 12d) of the detection faces 12c of base station 12 opposition side, be formed with closed surface 41 with bottom 22 (with the base station 12 opposed lower surfaces) driving fit of housing 14.Closed surface 41 forms from the central portion of base station 12 and extends to exterior region.In addition, on the upper surface 12d of base station 12, around closed surface 41, be formed with a plurality of recesses 42.
As shown in Figure 7, on the central portion of the detection faces 12c of base station 12, be formed with circular depressions 43.Around this circular depressions 43, be formed with plane circumferentia 44.In addition, the rear end side of circumferentia 44 (with after the opposite side of the 2nd test section stated) on be formed with towards the outstanding circular-arc guide 44a of circular depressions 43.
As shown in Figure 7, this leakage detecting sensor 1 has the 1st test section S1 and the 2nd test section S2 that is used to detect the liquid that is provided with between face P and the base station 12.The 1st test section S1 and the 2nd test section S2 are set in the inboard scope of the closed surface 41 (Fig. 3 and Fig. 5 (a)) of base station 12.In more detail, the 1st test section S1 and the 2nd test section S2 arrange along fore-and-aft direction X and are provided with, and the 1st test section S1 is formed on the middle position of leakage detecting sensor 1, and the 2nd test section S2 is formed on the position near leading edge of leakage detecting sensor 1.
As shown in Figure 7, the 1st test section S1 has a pair of base station protrusion 45 in the circular depressions 43 that is formed on base station 12.This a pair of base station protrusion 45 is arranged along horizontal Y and is arranged on the base station 12.In addition, each base station protrusion 45 is outstanding towards face P (direction of leaving from housing 14) is set, each base station protrusion 45 become recess (referring to Fig. 3) with housing 14 opposed parts.The mutual opposed opposed faces 45a of the horizontal Y in the edge of each base station protrusion 45 forms along with towards the lower end of base station protrusion 45, promptly along with being separated from each other near the face P of setting each other.The space that is formed by said pair of opposed face 45a and end face 45b that the upper end of pair of opposed face 45a is linked becomes the liquid importing G1 of portion.This liquid importing G1 of portion extends along the fore-and-aft direction X of base station 12.
In addition, as shown in Figure 4, the 1st test section S1 has the pair of shells protrusion 46 that on the bottom 22 of housing 14, is provided with along horizontal Y arrangement.Each housing protrusion 46 is outstanding towards base station 12, and the inside part of each housing protrusion 46 becomes recess.Pair of shells protrusion 46 be embedded into a pair of base station protrusion 45 respectively with housing 14 opposed recesses in and with this recess driving fit (referring to Fig. 8).
As shown in Figure 8, the 1st test section S1 has light-projecting component 47 and the photo detector 48 that is disposed at housing 14 inside.Light-projecting component 47 and photo detector 48 are set on the circuit board (omitting diagram) that is accommodated in the housing 14, are configured in the top of pair of shells protrusion 46 respectively.
Roughly the same with said the 1st test section S1, the 2nd test section S2 has a pair of base station protrusion 51, pair of shells protrusion 52, light-projecting component 53 and photo detector 54.Between the opposed faces 51a of a pair of base station protrusion 51, be formed with the liquid importing G2 of portion (Fig. 7).In addition, on the 2nd test section S2, be formed with a pair of guiding protuberance 55, a pair of guiding protuberance 55 is set on the position with the liquid importing G2 of the portion clamping of base station 12 on the fore-and-aft direction X.Each guiding protuberance 55 is outstanding towards face P (direction of leaving from housing 14) is set, each guiding protuberance 55 become recess with housing 14 opposed parts.In addition, on the end face 51b of the liquid importing G2 of portion, be formed with the airport 51c that is used to discharge air.
In addition, on the circumferentia 44 of base station 12, be formed with 3 columned shank 44b, these 3 columned shank 44b are towards face P outstanding (referring to Fig. 6) is set.Each shank 44b with face P butt is set.Length by shank 44b determines that the length of this shank 44b is set according to the liquid as detected object from the interval of face P to circumferentia 44 is set.That is, changing according to liquid from face P being set under the situation at the interval of circumferentia 44, as long as replace with the different base station 12 of shank 44b length, so the versatility of sensor main body portion 11 increases as detected object.
Because the detection mode of the 1st test section S1 of above-mentioned leakage detecting sensor 1 and the 2nd test section S2 is roughly the same,, describe according to Fig. 8 so be example with the 1st test section S1.
The light that penetrates from the light-projecting component of the 1st test section S1 47 passes the opposed faces 45a of (left side a Fig. 8) housing protrusion 46 and base station protrusion 45.At this moment; If there is not liquid to be immersed in the liquid importing G1 of portion of the 1st test section S1; There is not liquid to contact with opposed faces 45a; The light that then penetrates from light-projecting component 47 will be in the opposed faces 45a in left side refraction, and the opposed faces 45a and the housing protrusion 46 of the base station protrusion 45 through another (right side) are received light by photo detector 48.
With respect to this; Under liquid in being immersed in the liquid importing G1 of portion and the opposed faces 45a state of contact; Because the refractive index on the opposed faces 45a in left side changes, so the light income of photo detector 48 is changed by the state that does not have liquid to be immersed in the liquid importing G1 of portion.That is, the light income of photo detector 48 is according to having no liquid to change between the base station protrusion 45, and photo detector 48 will be corresponding with this light income outputed to by light signal not give illustrated control part.
In addition, in this leakage detecting sensor 1, be attached to from the leakage of manufacturing installation D and be provided with on the face P, leakage flow into base station 12 and is provided with in the slit between the face P.Like this, at first, at the lower surface (detection faces 12c) of base station 12, leakage flow into the circumferentia 44 around the circular depressions 43 and is provided with in the slit between the face P, and then, leakage flow into circular depressions 43 and is provided with in the slit between the face P.
At length say; Flow into the circumferentia 44 of base station 12 and the leakage in the slit between the face P is set; At first under the effect of the pressure of the expulsive force of capillarity and the inflow direction that produces by the leakage of new supply, in circumferentia 44 and be provided with in the slit between the face P and spread.At this; Because circular depressions 43 and the slit that is provided with between the face P are bigger than circumferentia 44 and the slit that is provided with between the face P; So the leakage that is immersed in base station 12 and is provided with between the face P is difficult to be immersed in circular depressions 43, this leakage is the part diffusion of the circumferentia 44 beyond circular depressions 43 mainly.Then, under the state of whole circumferentia 44 diffusions, when leakage further was immersed in base station 12 and is provided with between the face P, leakage flow in the circular depressions 43 from said guide 44a in leakage.
That is to say, be under the situation below the scheduled volume in the leakage from manufacturing installation D, and this leakage flow into circumferentia 44 and the slit between the face P is set.With respect to this, under the situation of leakage greater than scheduled volume from manufacturing installation D, this leakage flow in the circular depressions 43 from circumferentia 44 and the slit that is provided with between the face P.On this base station 12; The 2nd test section S2 is set on the part that the leakage that flow into circumferentia 44 is detected; And the 1st test section S1 is set on the part that the leakage that flow into circular depressions 43 is detected, can makes the liquid of the 1st test section S1 and the 2nd test section S2 have lag behind (time lag) between detecting.Thus, can increase the variation (variation) of the liquid detection of leakage detecting sensor 1.
Like Fig. 3 and shown in Figure 5; In this leakage detecting sensor 1; Between the base station protrusion 45 of the 1st test section S1, be formed with airport 61, this airport 61 vertically Z extends through the upper surface 12d (face of detection faces 12c opposition side) of base station 12 from the liquid importing G1 of portion.The cross sectional shape of overlooking of airport 61 forms toroidal.In addition, be formed with the groove 62 that extends to the outer edge 41a of closed surface 41 from airport 61 at the upper surface 12d of base station 12.This groove 62 is avoided extending towards the rear end side (the 2nd test section S2 opposition side) of base station 12 from the light path of the light of light-projecting component 47 ejaculations.
Groove 62 has shallow bottom 63 and a pair of dark bottom 64.12 airport 61 extends to the roughly outer rim of closed surface 41 through the liquid importing G1 of portion posterior components along fore-and-aft direction X from base station in shallow bottom 63.The outer edge 41a that a pair of dark bottom 64 forms this shallow bottom 63 and closed surface 41 is communicated with.Dark bottom 64 is respectively formed at the both sides of the horizontal Y of shallow bottom 63.The degree of depth T2 of dark bottom 64 sets greatlyyer than the degree of depth T1 of shallow bottom 63.In addition, each dark bottom 64 extends to the recess 42 of closed surface 41 along fore-and-aft direction X from base station protrusion 45.In addition, the size on degree of depth T1, the T2 of shallow bottom 63 and dark bottom 64 are respectively from the bottom surface of shallow bottom 63 and dark bottom 64 to the vertical direction Z of the closed surface 41 of base station 12.Through the groove 62 that constitutes by shallow bottom 63 and dark bottom 64, between base station 12 and housing 14, form and slit that airport 61 is continuous.In addition, as shown in Figure 9, on the upper surface 12d of base station 12, become the closed surface 41 with bottom 22 driving fits of housing 14 near the position of the 2nd test section S2 than airport 61.In addition, this closed surface 41 forms on the part of airport 61 and moves to shallow bottom 63 via rake 65.
The effect of above-mentioned embodiment then, is described.
In the 1st test section S1, when liquid was immersed in the liquid importing G1 of portion, under the effect of the feed pressure of liquid, the air in the liquid importing G1 of portion flowed to dark bottom 64 through airport 61 from the shallow bottom 63 of groove 62.Then, this air flow into recess 42 from dark bottom 64, finally from the slit flow between the peripheral part of housing 14 and base station 12 to the side of sensor main body portion 11 (direction vertical) with vertical direction Z.In this way, the air in the liquid importing G1 of portion is discharged into the outside, so even the feed pressure of liquid is little, liquid also is immersed in the liquid importing G1 of portion easily.
In addition, groove 62 comprises the shallow bottom 63 that is positioned at the liquid importing portion G1 back side and extends to the dark bottom 64 of the outer edge 41a of closed surface 41 from this shallow bottom 63.Therefore, can fully guarantee the degree of depth (size of vertical direction Z) of the liquid importing G1 of portion, can realize that stable liquid detects through shallow bottom 63.In addition, the air in the G1 of liquid importing portion is through flow into the outside of closed surface 41 swimmingly than 63 dark dark bottoms 64, shallow bottom.
In addition, the different a plurality of base stations 12 of flow path area (sectional area, the area of the airport 61 when promptly overlooking) of degree of depth T1, T2 and/or the airport 61 of the shallow bottom 63 of preparation groove 62 and dark bottom 64.Can change and be installed to the base station 12 in the sensor main body portion 11 according to the liquid of detected object.Therefore, for example high and be difficult to be immersed under the situation of the liquid importing G1 of portion in the viscosity of liquid, the base station 12 that can select to be suitable for this liquid uses.
In addition, though on the liquid importing G2 of portion of the 2nd test section S2, also be formed with airport 51c, the also groove the groove that is provided with on the peripheral part of this airport 51c on the peripheral part of the airport that is arranged at the 1st test section S1 61 not.This be because; The 2nd test section S2 is set at the leading edge portion of base station 12; So when liquid is immersed in this liquid importing G2 of portion; Can access enough feed pressures, the air in this liquid importing G2 of portion flow into the outside from airport 51c through the recess that guides protuberance 55 dorsal parts (housing 14 sides) easily.With respect to this, because the 1st test section S1 is set at the central portion of base station 12, so have the tendency that reduces to the fluid inflow pressure of the liquid importing G1 of portion.Therefore, on the liquid importing G1 of portion that groove 62 is set to the 1st test section S1, thereby can access the air releasing effect of this groove 62 more significantly.
The characteristic effect of this embodiment then, is described.
(1) on base station 12, is formed with the airport 61 that extends through upper surface 12d from the liquid importing G1 of portion.Be formed with the groove 62 that extends to the outer edge 41a of closed surface 41 from airport 61 at the upper surface 12d of base station 12.Thus, when entering into the liquid that is provided with between face P and the base station 12 and be immersed in the liquid importing G1 of portion, the air in this liquid importing G1 of portion is discharged to the outside with the closed surface 41 of the base station 12 of housing 14 driving fits from airport 61 through groove 62.Therefore, liquid is immersed in the liquid importing G1 of portion.
In addition, because groove 62 is set on the base station 12, rather than be arranged on owing to innerly possess critical piece such as light-projecting component 47, photo detector 48 and in design, exist on the housing 14 of many restrictions, so help improving the design freedom of groove 62.
(2) groove 62 that is formed on the upper surface 12d of base station 12 has: shallow bottom 63, be formed on the importing of the liquid at least G1 of the portion posterior components of base station 12, and continuous with airport 61; And dark bottom 64, the outer edge 41a that forms this shallow bottom 63 and closed surface 41 is communicated with.The degree of depth T2 of dark bottom 64 is configured to bigger than the degree of depth T1 of shallow bottom 63.That is, in groove 62, be formed at the liquid importing G1 of portion posterior components and form shallow bottom 63, and the part till from this shallow bottom 63 to the outer edge 41a of closed surface 41 forms dark bottom 64 with airport 61 continuous parts.Thus, can fully guarantee the degree of depth of the liquid importing G1 of portion through shallow bottom 63, and can be through with continuous dark bottom 64, shallow bottom 63 liquid being imported the outside that air in the G1 of portion is discharged into closed surface 41 well.
(3) base station 12 constitutes and can change with respect to sensor main body portion 11.Thus, can be according to the liquid of detected object, for example changing, the shallow bottom 63 of groove 62 reaches the different base station 12 of flow path area (area of section, the area of the airport 61 when overlooking) of degree of depth T1, T2 and/or the airport 61 of bottom 64 deeply.Therefore, high and be difficult to be immersed under the situation of the liquid importing G1 of portion in the viscosity of for example liquid, the base station 12 that can select to be suitable for this liquid uses.
In addition, the embodiment of the utility model also can change to following form.
In the above-described embodiment, airport 61 forms the rounded shape of cross sectional shape when overlooking.Be alternative in this, the cross sectional shape of airport 61 also can form the slotted hole shape (oval, rectangle) that for example extends along fore-and-aft direction X (that is the shape of the G1 of liquid importing portion).Constitute according to this,,, can make the air in the liquid importing G1 of portion easily be discharged into groove 62 so can increase the cross sectional shape (flow path area) of airport 61 because the cross sectional shape of overlooking of airport 61 forms along the slotted hole shape of the liquid importing G1 of portion.In addition, the fore-and-aft direction X of airport 61 is preferably dimensioned to be size over half of the fore-and-aft direction X of the liquid importing G1 of portion.
In the above-described embodiment, the shallow bottom 63 of groove 62 extends to the outer rim of closed surface 41 from airport 61.Be alternative in this, for example, shallow bottom 63 also can extend to the rearward end (being positioned at from the 2nd test section S2 locational end farthest) of base station protrusion 45 from airport 61.
In the above-described embodiment, groove 62 possesses shallow bottom 63 and dark bottom 64.Be alternative in this, for example, the groove depth of groove 62 also can be for constant.
In the above-described embodiment, groove 62 is formed on the base station 12.Yet, be alternative in this, for example, also can groove 62 be formed on the bottom 22 of housing 14.
In the above-described embodiment, leakage detecting sensor 1 possesses the 1st test section S1 and the 2nd test section S2.Be alternative in this, for example, also can omit the 2nd test section S2.In addition, leakage detecting sensor 1 also can have 3 above test sections.
Claims (6)
1. an apparatus for testing weeping is set on the face of setting, possesses:
Sensor main body portion possesses light-projecting component and photo detector having light transmission and have in the housing of lower surface; And
Base station has light transmission, is set at the said lower surface and said the setting between the face of said housing,
The liquid importing portion that said base station has the closed surface that is positioned at the base station upper surface and said lower surface driving fit said housing and on the face of the said closed surface opposition side of base station, is arranged with,
The light that penetrates towards the said lower surface of said housing from said light-projecting component is accepted by said photo detector through said liquid importing portion, and detecting in the said liquid importing portion according to the light income of photo detector has no liquid, it is characterized in that,
On said base station, be formed with the airport that extends through said base station upper surface from said liquid importing portion,
On at least one side of the said lower surface of the said upper surface of said base station and said housing, be formed with groove, the light path of the light that this groove is avoided penetrating from said light-projecting component and extend to the outer edge of said closed surface from said airport.
2. apparatus for testing weeping according to claim 1 is characterized in that,
Said groove is formed on the said upper surface of said base station.
3. apparatus for testing weeping according to claim 2 is characterized in that,
Said groove has:
Shallow bottom is formed on the upper surface of said at least liquid importing portion opposition side of said base station, and is continuous with said airport; And
Dark bottom, the outer edge that forms said shallow bottom and said closed surface is communicated with, and the said shallow bottom of depth ratio is big.
4. according to any described apparatus for testing weeping of claim 1～3, it is characterized in that,
Said liquid importing portion said groove in edge when overlooking extends,
The cross sectional shape of overlooking of said airport forms the slotted hole shape that edge said liquid importing portion extends.
5. according to any described apparatus for testing weeping of claim 1～3, it is characterized in that,
Said base station can be changed with respect to said sensor main body portion.
6. the base station of an apparatus for testing weeping, this apparatus for testing weeping have the housing that light-projecting component and photo detector are taken in,
This base station has light transmission, and be set at the lower surface of said housing and be provided with between the face, and have the opposed upper surface of said lower surface with said housing,
The liquid importing portion that this base station has the closed surface that is positioned at upper surface and said lower surface driving fit said housing and on the face of the said closed surface opposition side of base station, is arranged with is characterized in that,
Be formed with the airport that extends through said base station upper surface from said liquid importing portion,
Be formed with groove at said base station upper surface, this groove avoids extending to from the light path of the light of said light-projecting component ejaculation and from said airport the outer edge of said closed surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-101262 | 2011-04-28 | ||
| JP2011101262A JP5745325B2 (en) | 2011-04-28 | 2011-04-28 | Leak detection device and base of leak detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274978U true CN202274978U (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204007209U Expired - Fee Related CN202274978U (en) | 2011-04-28 | 2011-10-12 | Liquid leakage detection device and base of liquid leakage detection device |
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| Country | Link |
|---|---|
| JP (1) | JP5745325B2 (en) |
| KR (1) | KR101747831B1 (en) |
| CN (1) | CN202274978U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728950A (en) * | 2014-01-03 | 2014-04-16 | 合肥彩虹蓝光科技有限公司 | Online liquid leakage monitoring device |
| CN108501297A (en) * | 2017-10-14 | 2018-09-07 | 上海尚耐自动化科技有限公司 | A kind of manufacturing process for the sealing shell of photoelectric sensor under ultraviolet light environments |
| CN111033208A (en) * | 2018-01-03 | 2020-04-17 | 韩国自动传感器公司 | Liquid leakage detection sensor with sensitivity adjustable function |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483070B (en) * | 2016-12-20 | 2023-08-18 | 杭州聚光环保科技有限公司 | Flow cell applied to liquid on-line detection and working method thereof |
| JP6940155B2 (en) * | 2018-08-10 | 2021-09-22 | アドバンス電気工業株式会社 | Diaphragm valve using diaphragm member |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391891A (en) * | 1990-02-28 | 1995-02-21 | Leopold Kostal Gmbh & Co. Kg | Moisture sensing device |
| JP3756683B2 (en) * | 1998-12-11 | 2006-03-15 | 株式会社ツーデン | Leak sensor |
| JP2001050856A (en) * | 1999-08-16 | 2001-02-23 | Tsuuden:Kk | Liquid leak sensor |
| JP3500351B2 (en) * | 2000-07-31 | 2004-02-23 | サンクス株式会社 | Liquid leak sensor |
| JP4374173B2 (en) * | 2002-07-24 | 2009-12-02 | サンクス株式会社 | Leak sensor |
| JP2004294164A (en) * | 2003-03-26 | 2004-10-21 | Tsuuden:Kk | Liquid leakage sensor |
| US7158039B2 (en) * | 2003-03-26 | 2007-01-02 | Tsuden Kabushiki Kaisha | Liquid leakage sensor and liquid leakage detecting system |
-
2011
- 2011-04-28 JP JP2011101262A patent/JP5745325B2/en active Active
- 2011-10-12 CN CN2011204007209U patent/CN202274978U/en not_active Expired - Fee Related
- 2011-10-24 KR KR1020110108530A patent/KR101747831B1/en active IP Right Grant
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728950A (en) * | 2014-01-03 | 2014-04-16 | 合肥彩虹蓝光科技有限公司 | Online liquid leakage monitoring device |
| CN108501297A (en) * | 2017-10-14 | 2018-09-07 | 上海尚耐自动化科技有限公司 | A kind of manufacturing process for the sealing shell of photoelectric sensor under ultraviolet light environments |
| CN111033208A (en) * | 2018-01-03 | 2020-04-17 | 韩国自动传感器公司 | Liquid leakage detection sensor with sensitivity adjustable function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012233744A (en) | 2012-11-29 |
| JP5745325B2 (en) | 2015-07-08 |
| KR20120122864A (en) | 2012-11-07 |
| KR101747831B1 (en) | 2017-06-15 |
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| CP01 | Change in the name or title of a patent holder |
Address after: Aichi Prefecture, Japan, the spring well city, Niu Shan Ting 2431 times 1 Patentee after: Panasonic Electric Works Sunx Co., Ltd. Address before: Aichi Prefecture, Japan, the spring well city, Niu Shan Ting 2431 times 1 Patentee before: Panasonic Electric Works Sunx Co., Ltd. |
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