CN105158814A - Detector for medium inside pipe, and detector assembly - Google Patents
Detector for medium inside pipe, and detector assembly Download PDFInfo
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- CN105158814A CN105158814A CN201410238523.XA CN201410238523A CN105158814A CN 105158814 A CN105158814 A CN 105158814A CN 201410238523 A CN201410238523 A CN 201410238523A CN 105158814 A CN105158814 A CN 105158814A
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Abstract
The invention discloses a detector for a medium inside a pipe. The detector comprises an emission portion (11) with a light source (16), a reception portion (12) with a photoelectric detector (17), a substrate (13) connected to the emission portion and the reception portion, and a guide pipe (15). The guide pipe passes through the emission portion and the reception portion to form a guide pipe groove (14) which is limited in position. One side, facing the guide pipe, of the emission portion and one side, facing the guide pipe, of the reception portion are equipped with a first slit (112) and a second slit (122) respectively. According to the technical scheme, a relative position relation between the guide pipe and the first slit and a relative position relation between the guide pipe and the second slit are accurately defined, so the detector is stable, and will not give a false alarm or malfunction. The invention also discloses a detector assembly. The detector assembly comprises the above detector and a detector assembly body (20). The detector assembly body is equipped with a holding tank (22) and a through groove (23a) penetrating the holding tank. The emission portion and the reception portion are disposed in the holding tank. The guide pipe passes through the through groove.
Description
Technical field
The present invention relates to the detector of medium in a kind of detector tube, particularly relate to a kind of detector applying media variations in photoelectric technology detection tubule.
Background technology
In analytical instrument, the liquids and gases media variations situation often needing internal diameter in flow path to be less than in the tubule of 5 millimeters detects.At present, the detection principle of such sensor has based on light intensity change, also has based on principles such as capacitance variations, resistance variations, thermal diffusion, changes of magnetic field.The detection of liquid in pipeline internal diameter being less than to 5 millimeters, the detector based on optical principle is many.Patent CN101561517B discloses a kind of non-contact type liquid detector in pipe and detection method thereof, the method is based on optical principle, the refractive index of light in pipeline internal medium is different from the refractive index in duct wall, when being gas in pipeline, incident ray is mainly totally reflected at inwall place, light signal can be detected by the receiver arranged, and incident ray mainly reflects at inwall place when being liquid in pipeline, light deflection, receiver can't detect light signal, thus can distinguish in pipeline whether there is liquid medium.
But, when the external diameter of tubule is less than 8 millimeters, when internal diameter is less than 5 millimeters, due to the principle restriction of total reflection, after tubule installs, require that thin tube inner wall, optical alignment relation between light source and photosensitive detector three are very strict, if tubule and the installation site between light source and photosensitive detector slightly deviation or rock, detecting device will be reported by mistake and even lose efficacy.Therefore, how to ensure tubule and detection part accurate location and easy to use be this detection method application difficult point.
Summary of the invention
The object of this invention is to provide medium detector in a kind of pipe, in this pipe, medium detector is reliable and stable, easy to use.
To achieve these goals, the invention provides medium detector in a kind of pipe, comprising:
Emission part, described emission part has the first container cavity and is positioned at the light source of this first container cavity;
Acceptance division, described acceptance division has the second container cavity and is positioned at the photoelectric detector of this second container cavity;
Substrate, described emission part and described acceptance division are installed on the substrate, are formed with conduit trough between described emission part and acceptance division;
Conduit, described conduit is through described conduit trough and be clamped on described emission part and described acceptance division, wherein, described emission part and described acceptance division are respectively arranged with towards the side of described conduit the first gap and the second gap that correspond to each other, wherein, the central axis upright of the plane that described first gap and the second gap are formed and described conduit, and the line between longitudinal mid point in longitudinal mid point in described first gap and described second gap and the central axis of this conduit non-intersect, described conduit is at least transparent or semitransparent in the part corresponding with described first gap and the second gap.
Preferably, the outer diameter D 2 of described conduit and the width dimensions W of described conduit trough meet relation: D-0.3 millimeter≤W≤D.
Preferably, described light source and described photoelectric detector are prolong the flat structure that raw direction is parallel to each other.Further preferably, one end that described light source and described photoelectric detector correspond to described first container cavity and the second container cavity has the structure that width dimensions reduces.
Preferably, the contact conductor of described light source and described photoelectric detector stretches out to same direction.
Preferably, described light source and described first container cavity wringing fit, and/or described photoelectric detector and described second container cavity wringing fit.
Preferably, described surface of light source has the first projection to the side of described conduit, this first projection is arranged in described first gap, described photoelectric detector has the second projection towards the side of described conduit, this second projection is arranged in described second gap, and described first projection and described second projection are light-transmitting materials or light conduction material.
Preferably, described first projection is clamped in described first gap, and/or described second projection is clamped in described second gap.
Preferably, the line between longitudinal mid point of described first projection and longitudinal mid point of described second projection and the distance between the central axis of this conduit be R1-1.0 millimeter to R1+1.0 millimeter, wherein R1 is the radius size of the internal diameter of described conduit.
Preferably, in described pipe, medium detector also comprises the pressing plate be fixedly connected with relative to described substrate, and described pressing plate at least has contact site, and described conduit is pressed between this contact site and described substrate.
Pass through technique scheme, owing to have employed by emission part, the structure of the conduit trough that acceptance division and substrate are formed, conduit is arranged in conduit trough, by the emission part and acceptance division that form conduit trough limit conduit with the position on the first direction of substrate-parallel, it is limited perpendicular to the position in the second direction of this first direction by substrate, simultaneously, light source and photoelectric detector are arranged in emission part and acceptance division respectively, and be provided with the first gap and the second gap that correspond to each other, the position of light beam band opposing substrate is determined by the first gap and the second gap, therefore the relative position relation of conduit and described light beam band can be accurately defined, deviation can not be there is because of rocking or be out of shape, thus this detector is stablized, can not report by mistake or lose efficacy.In addition, form the emission part of conduit trough of the present invention, acceptance division and substrate can integration produce in batches, simultaneously light source and photoelectric detector also can mass productions, and in pipe of the present invention, each parts of medium detector are installed simple, therefore have the feature of low production cost.
The present invention also provides a kind of detector assembly, and described detector assembly comprises:
Medium detector in pipe, in described pipe, medium detector is medium detector in any one pipe above-mentioned;
Detector assembly body, described detector assembly body is provided with holding tank and the groove through this holding tank, and wherein, in described pipe, medium detector is arranged on described detector assembly body, to make described emission part, acceptance division falls in described holding tank, and described conduit is through described groove.
Another version that detector assembly provided by the invention also has, comprising:
Medium detector in pipe, in described pipe, medium detector is medium detector in any one pipe above-mentioned;
Detector assembly body, described detector assembly body is provided with holding tank and the through hole through this holding tank, and wherein, in described pipe, medium detector is arranged on described detector assembly body, to make described emission part, acceptance division falls in described holding tank, and described conduit is through described through hole.
Preferably, described through hole is formed as bellmouth and threaded hole from being positioned at holding tank a distance successively to the direction that two ends extend, described detector assembly also comprises fusiformis sleeve pipe and threaded sleeve, described fusiformis sleeve pipe have adapt with described bellmouth the conical surface, described threaded sleeve has the screw thread that closes with described corresponding threaded holes and its one end has the conical surface adapted with described fusiformis sleeve pipe, described fusiformis sleeve pipe and threaded sleeve are arranged in described bellmouth and threaded hole respectively, and described conduit is through described fusiformis sleeve pipe and threaded sleeve.
Preferably, described conduit is made up of more piece, at least comprise through described conduit trough the first conduit and lay respectively at the second conduit and the 3rd conduit at described first conduit two ends, described first conduit and described second conduit and the junction between described first conduit and described 3rd conduit are positioned at described fusiformis sleeve pipe.
Preferably, described first conduit and described second conduit and between described first conduit and described 3rd conduit the internal diameter of connecting portion seamlessly transit.
Preferably, described second conduit and/or the 3rd conduit are flexible conduit.
Preferably, the bottom of described holding tank is vertically arranged with boss, described boss and described catheter contact, jointly to retrain described conduit with described substrate.
Preferably, described detector body is provided with installed surface, described substrate is fixedly mounted by this installed surface and described detector body.
Preferably, in described pipe, medium detector is connected with circuit board, and the contact conductor of described light source and described photoelectric detector is connected electrically on described circuit board.
Preferably, the material of described conduit is plastics, glass, quartz or their combination.
Above-mentioned detector assembly further comprises detector assembly body, detector assembly body have holding tank and through this holding tank groove or through hole, in pipe, medium detector is arranged on this detector assembly body, emission part and acceptance division are arranged in described holding tank, and conduit is through described groove or through hole.After adopting this technical scheme, conduit is fixed by detector assembly body further, and is limited by substrate and detector assembly body in a second direction simultaneously, and therefore this structure makes the corresponding relation of conduit and described light beam band more stable.In addition, other position of detector assembly body can arrange various forms of mounting structure, for carrying out installing or fixing with other parts, makes the use of detector assembly convenient.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the perspective exploded view of a kind of preferred implementation of medium detector in pipe of the present invention.
Fig. 2 is the cut-open view of medium detector in pipe in Fig. 1.
Fig. 3 be in Fig. 1 in pipe the substrate of medium detector, emission part and acceptance division cut open after schematic perspective view.
Fig. 4 is the perspective exploded view of a kind of embodiment of detector assembly of the present invention.
Fig. 5 is the cut-open view of detector assembly in Fig. 4.
Fig. 6 is the cut-open view of Fig. 5 along A-A direction.
Fig. 7 is the perspective exploded view of the another kind of embodiment of detector assembly of the present invention.
Fig. 8 is the cut-open view of detector assembly in Fig. 7.
Fig. 9 is the perspective exploded view of detector assembly preferred structure in Fig. 7.
Figure 10 is the cut-open view of detector assembly in Fig. 9.
Description of reference numerals
Medium detector 11 emission part in 10 pipes
12 acceptance division 13 substrates
14 conduit trough 15 conduits
16 light source 17 photoelectric detectors
18 pressing plate 20 detector assembly bodies
21 boss 22 holding tanks
23a groove 23b through hole
24 installed surface 25 fusiformis sleeve pipes
26 threaded sleeve 111 first container cavities
112 first gap 121 second container cavities
122 second gap 151 first conduits
152 second conduit 153 the 3rd conduits
161 first protruding 171 second is protruding
181 contact site 231 bellmouths
232 threaded holes
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Shown in Fig. 1, Fig. 2 and Fig. 3, in pipe of the present invention, medium detector comprises emission part 11, acceptance division 12, substrate 13 and conduit 15.Described substrate 13 is connected with described emission part 11 and acceptance division 12 respectively, and emission part 11 and acceptance division 12 are positioned at the same side of substrate, have opposing parallel face, and this opposing parallel face and substrate 13 together form conduit trough 14.Substrate 13 and emission part 11, acceptance division 12 can be integrally manufactured, is plastic material, also can be fixed together by installation.
See Fig. 2, conduit 15 through above-mentioned conduit trough 14, and contacts with substrate 13 with emission part 11, acceptance division 12, and conduit 15 is clamped between emission part 11 and acceptance division 12, forms wringing fit.Wringing fit makes the position of conduit 15 fix, and can not shake.Be D2 at this outside dimension defining described conduit 15, the width dimensions of described conduit trough 14 and the distance between emission part 11 and acceptance division 12 opposite face are W, and further preferred described wringing fit meets following relation: D-0.3 millimeter <W<D.
The first container cavity 111 is provided with in described emission part 11, the second container cavity 121 is provided with in acceptance division 12, have in this first container cavity 111 be provided with can be luminous light source 16, second container cavity 121 in be provided with can the photoelectric detector 17 that emits beam of detection light source 16.
See Fig. 3, described emission part 11 and acceptance division 12 are respectively arranged with towards the side of conduit trough 14 the first gap 112 and the second gap 122 corresponded to each other, this first gap 112 and the second gap 122 communicate with the first container cavity 111 and the second container cavity 121 respectively, wherein, the central axis upright of the plane that described first gap 112 and the second gap 122 are formed and described conduit 15, first gap 112 and the second gap 122 are set to narrow rectangle, such as width 0.2 millimeter ~ 1.0 millimeters, preferably 0.3 ~ 0.5 millimeter, longitudinally height 2 ~ 5 millimeters.Be R1 in this radius size defining the internal diameter of described conduit 15, preferably, the distance of the axis of described line and described conduit 15 is that R1-1.0 millimeter is to R1+1.0 millimeter.Described conduit 15 is at least transparent or semitransparent in the part corresponding with described first gap 112 and the second gap 122, and the part of described conduit 15 preferably in described conduit trough 14 is all transparent or semitransparent.During detection, the light that light source 16 sends forms light beam band by described first gap 112, this light beam band is perpendicular to conduit 15, penetrate medium in conduit 15 and conduit, according to the final emergent light band of the difference of medium in conduit along original direction or depart from original direction, thus can enter or the second gap 122 can not be entered, whether receiving by photoelectric detector 17 state that light signal judges medium in conduit.
In technique scheme, owing to have employed by emission part 11, the structure of the conduit trough 14 that acceptance division 12 and substrate 13 are formed, conduit 15 is arranged in conduit trough 14, by the emission part 11 and acceptance division 12 that form conduit trough limit conduit 15 with the position on the first direction of substrate-parallel, the position of conduit 15 in the second direction vertical with this first direction is limited by substrate 13, simultaneously, light source 16 and photoelectric detector 17 are arranged in emission part 11 and acceptance division 12 respectively, and be provided with the first gap 112 and the second gap 122 corresponded to each other, the position of light beam band opposing substrate 13 is determined by the first gap and the second gap, therefore the relative position relation of conduit 15 and described light beam band can be accurately defined, deviation can not be there is because of rocking or be out of shape, thus detector is stablized, can not report by mistake or lose efficacy.In addition, form the emission part 11 of conduit trough of the present invention, acceptance division 12 and substrate 13 can integration and produce in batches, simultaneously light source 16 and photoelectric detector 17 also can mass productions, because each parts are installed simple, therefore have the feature of low production cost.
Described light source 16 is any electron device that can be luminous, and be preferably light emitting diode, be more preferably infrared light-emitting diode, light source 16 is positioned at described first container cavity 111, and its contact conductor stretches out outside the first container cavity 111; Described photoelectric detector 17 is corresponding with light source 16, can the light signal that sends of detection light source 16, when light source 16 is infrared light-emitting diode, photoelectric detector 17 is infrared ray photodetector, photoelectric detector 17 is arranged in described second container cavity 121, and its contact conductor stretches out outside the second container cavity 121.
Shown in Figure 1, described light source 16 and described photoelectric detector 17 are flat structure, and are parallel to each other at bearing of trend, and light source 16 and photoelectric detector 17 can be encased in described first container cavity 111 and the second container cavity 121 respectively by the mode inserted.Further preferably, described light source 16 and photoelectric detector 17 have the structure of width dimensions reduction corresponding to the one end being inserted into described first container cavity 111 and the second container cavity 121, be tongue structure, the tongue structure adopting this width dimensions to reduce is convenient to light source and photoelectric detector inserts in container cavity.
Between described light source 16 and the first container cavity 111, between described photoelectric detector 17 and the second container cavity 121, multiple applicable fixed form can be adopted, such as encapsulate, securing member is fastening.Preferably, described light source 16 and described first container cavity 111 wringing fit, and/or described photoelectric detector 17 and described second container cavity 121 wringing fit.Friction tight mode is adopted only to need both to insert, convenient and swift.
Preferably, the contact conductor of described light source 16 and described photoelectric detector 17 stretches out to same direction.Contact conductor stretches out to same direction, the connection of convenience and other circuit.
As shown in Figure 1 and Figure 2, preferred described light source 16 has the first projection 161 towards the side of described conduit 15, this first projection 161 is arranged in described first gap 112, described photoelectric detector 17 has the second projection 171 towards the side of described conduit 15, this second projection 171 is arranged in described second gap 122, and described first projection 161 and described second projection 171 are light-transmitting materials or light conduction material.The light that these first protruding 161 pairs of light sources 16 send has collimating effect, and this first projection 161 is connected in described first gap 112 simultaneously, can fix described light source 16 further.This second projection 171 has the effect of convergence to the light through described conduit, and this second projection 171 is connected in described second gap 122 simultaneously, can fix described photoelectric detector 17 further.Preferably described first protruding 161 and/or second protruding 171 and wringing fit between described first gap 112 and/or the second gap 122, be namely clamped on respectively in described first gap 112 and the second gap 122.Line preferably between longitudinal mid point of described first projection 161 and longitudinal mid point of described second projection 171 and the distance between the central axis of described conduit 15 be R1-1.0 millimeter to R1+1.0 millimeter, wherein R1 is the radius size of the internal diameter of described conduit (15).The central axis of the BEAM SQUINT conduit 15 that can make by light source 16 and photoelectric detector 17 is so set.
As shown in Figure 1 and Figure 2, preferably, in described pipe, medium detector also comprises pressing plate 18, described pressing plate 18 has contact site 181, this contact site 181 stretches in conduit trough 14, contacts with described conduit 15, and described conduit 15 is pressed between this contact site 181 and described substrate 13.For described substrate 13, this contact site 181 is positioned at the opposite side of conduit 15, and therefore, described conduit 15 limits its position jointly by substrate 13 and pressing plate 18 in a second direction, thus further enhances the stability of conduit 15 position.Described pressing plate 18 is fixedly connected with relative to described substrate 13, and the part that such as can be extended by pressing plate 18 both sides is directly fixedly connected with by screw with substrate 13.
Fig. 4 is a kind of detector assembly exploded view of the present invention.This detector assembly comprises medium detector 10 and detector assembly body 20 in pipe.In described pipe, medium detector 10 is medium detector in any one pipe above-mentioned.Described detector assembly body 20 is provided with holding tank 22 and the groove 23a through this holding tank 22, in described pipe, medium detector 10 is arranged on described detector assembly body 20, to make the emission part 11 of medium detector 10 in pipe, acceptance division 12 falls in described holding tank 22, and described conduit 15 is through described groove 23a.
See Fig. 4, Fig. 5 and Fig. 6, particularly, the side described detector assembly body 20 being arranged holding tank 22 is processed with installed surface 24, this installed surface 24 is fixedly connected with the substrate 13 of medium detector 10 in pipe, emission part 11 and acceptance division 12 are contained in this holding tank 22, and conduit 15 is arranged in logical 23a and passes holding tank 22.In holding tank 22, the conduit trough 14 that conduit 15 is formed through described emission part 11, acceptance division 12 and substrate 13, conduit 15 with the first direction of substrate-parallel on retrained by emission part 11 and acceptance division 12, retrained by substrate 13 in a second direction perpendicular to the first direction; In addition, conduit 15 also provides constraint by the groove 23a of detector assembly body 20.Preferably, longitudinally arrange boss 21 in the bottom of holding tank 22, be positioned at the part of holding tank 22 at conduit 15, the side of conduit 15 contacts with substrate 13, relative opposite side contacts with this boss 21, thus this boss 21 and substrate 13 common about beam guide tube 15 in a second direction.
The installed surface 24 of detector assembly body 20 can be fixedly connected with by modes such as bonding or welding with between substrate 13, or preferably screw is set on installed surface 24, installs with screw by arranging screw on the substrate 13, thus realize managing interior detachable installation between medium detector 10 and detector assembly body 20.
In described pipe, medium detector 10 can also be connected with circuit board, the contact conductor electrical connection of light source 16 and photoelectric detector 17 on circuit boards, circuit board is provided with relevant chip and circuit, powers for giving light source 16 and photoelectric detector 17 and control their work.A kind of connected mode of circuit board is directly connected with substrate 13, and be positioned at the opposite side relative to emission part 11 and acceptance division 12 on substrate 13.
Detector assembly includes detector assembly body 20, detector assembly body 20 has holding tank 22 and the groove 23a through this holding tank 22, in pipe, medium detector 10 is arranged on this detector assembly body 20, emission part 11 and acceptance division 12 are arranged in described holding tank 22, and conduit 15 is through described groove 23a.After adopting this technical scheme, conduit 15 is fixed further by detector assembly body 20, and limited by substrate 13 and detector assembly body 20 in a second direction simultaneously, therefore this structure make conduit 15 and by emission part 11 and acceptance division 12 determine that the corresponding relation between light beam band is more stable.In addition, other position of detector assembly body 20 can arrange various forms of mounting structure, for carrying out installing or fixing with other parts, detector assembly is used more easily.
Fig. 7 and Fig. 8 is the structural drawing of the another kind of embodiment of the present invention.In Fig. 4, Fig. 5 and Fig. 6, conduit 15 is through the groove 23a of the side of detector assembly body 20, and passes in the through hole 23b that in Fig. 6 and Fig. 7, conduit 15 is arranged along the longitudinal direction of detector assembly body 20.Preferred structure is also illustrated in addition in Fig. 7 and Fig. 8, the through hole 23b of detector assembly body 20 divide into multistage, to the direction that two ends extend, bellmouth 231 and threaded hole 232 is formed with successively from being positioned at holding tank 22 a distance, the position of described bellmouth 231 is corresponding is provided with fusiformis sleeve pipe 25, the two ends of fusiformis sleeve pipe 25 have the conical surface adapted with bellmouth 231, the position of described threaded hole 232 is corresponding is provided with threaded sleeve 26, threaded sleeve 26 has the screw thread matched with threaded hole 232, and one end that threaded sleeve 26 contacts with fusiformis sleeve pipe 25 has the conical surface adapted with described fusiformis sleeve pipe (25), the other end of threaded sleeve 26 stretches out outside through hole 23b.The threaded hole 232 of threaded sleeve 26 and detector assembly body 20 is threaded connection fixing, and is fixed in bellmouth 231 by fusiformis sleeve pipe 25.Described conduit 15 is arranged in described through hole 23b, and through fusiformis sleeve pipe 25 and threaded sleeve 26, thus fixed with detector assembly body 20 further by fusiformis sleeve pipe 25 and threaded sleeve 26.
In Fig. 9 and Figure 10, described conduit 15 is made up of more piece, at least comprises the first conduit 151 through described conduit trough 14 and the second conduit 152 and the 3rd conduit 153 that lay respectively at the first conduit 151 two ends.Preferably, the junction of the first conduit 151 and the second conduit 152 and the first conduit 151 and the 3rd conduit 153 lays respectively in the fusiformis sleeve pipe 25 of conduit trough 14 both sides.Conduit adopts segmented design, each joint conduit can select separately material and size, such as the first conduit 151 to adopt after special processing light therethrough performance or corrosion resistance or the better material of anti-wall polluting performance, and the second conduit 152 and the 3rd conduit 153 can adopt the material or low-cost material that can bend, so both can improve the accuracy of detection, the conduit bending demand of needs in some cases can be met again, overall cost can also be reduced.
Preferably the internal diameter of connecting portion preferably seamlessly transits or has identical size between the first conduit 151 and the second conduit 152 and between the first conduit 151 and the 3rd conduit 153.
The material of conduit 15 is preferably plastics, glass or quartz, or their combination.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, such as, in the embodiment of accompanying drawing 7 and accompanying drawing 8, some preferred mode can be suitable for the embodiment in accompanying drawing 4-6 equally, and in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (20)
1. a medium detector in pipe, it is characterized in that, in described pipe, medium detector comprises:
Emission part (11), described emission part (11) has the first container cavity (111) and is positioned at the light source (16) of this first container cavity (111);
Acceptance division (12), described acceptance division (12) has the second container cavity (121) and is positioned at the photoelectric detector (17) of this second container cavity (121);
Substrate (13), described emission part (11) and described acceptance division (12) are arranged on described substrate (13), are formed with conduit trough (14) between described emission part (11) and acceptance division (12);
Conduit (15), described conduit (15) is through described conduit trough (14) and be clamped on described emission part (11) and described acceptance division (12), wherein, described emission part (11) and described acceptance division (12) are respectively arranged with towards the side of described conduit (15) the first gap (112) and the second gap (122) that correspond to each other, wherein, the central axis upright of the plane that described first gap (112) and the second gap (122) are formed and described conduit (15), described conduit (15) is at least transparent or semitransparent in the part corresponding with described first gap (112) and the second gap (122).
2. medium detector in pipe according to claim 1, is characterized in that, the outer diameter D 2 of described conduit (15) and the width dimensions W of described conduit trough (14) meet relation: D-0.3 millimeter≤W≤D.
3. medium detector in pipe according to claim 1, is characterized in that, the flat structure that described light source (16) and described photoelectric detector (17) are parallel to each other for bearing of trend.
4. medium detector in pipe according to claim 3, it is characterized in that, described light source (16) and described photoelectric detector (17) have corresponding to one end of described first container cavity (111) and the second container cavity (121) structure that width dimensions reduces.
5. medium detector in pipe according to claim 1, is characterized in that, the contact conductor of described light source (16) and described photoelectric detector (17) stretches out to same direction.
6. medium detector in pipe according to claim 1, it is characterized in that, described light source (16) and described first container cavity (111) wringing fit, and/or described photoelectric detector (17) and described second container cavity (121) wringing fit.
7. medium detector in pipe according to claim 1, it is characterized in that, described light source (16) has the first projection (161) towards the side of described conduit (15), this first projection (161) is arranged in described first gap (112), described photoelectric detector (17) has the second projection (171) towards the side of described conduit (15), this second projection (171) is arranged in described second gap (122), and described first projection (161) and described second projection (171) are light-transmitting materials or light conduction material.
8. medium detector in pipe according to claim 7, it is characterized in that, described first projection (161) is clamped in described first gap (112), and/or described second projection (171) is clamped in described second gap (122).
9. medium detector in pipe according to claim 7, it is characterized in that, line between longitudinal mid point of described first projection (161) and longitudinal mid point of described second projection (171) and the distance between the central axis of described conduit (15) be R1-1.0 millimeter to R1+1.0 millimeter, wherein R1 is the radius size of the internal diameter of described conduit (15).
10. medium detector in the pipe according to claim 1-9 any one, it is characterized in that, in described pipe, medium detector also comprises the pressing plate (18) be fixedly connected with relative to described substrate (13), described pressing plate (18) at least has contact site (181), and described conduit (15) is pressed between this contact site (181) and described substrate (13).
11. 1 kinds of detector assemblies, is characterized in that, described detector assembly comprises:
Medium detector (10) in pipe, in described pipe, medium detector (10) is medium detector in the pipe according to claim 1-11 any one;
Detector assembly body (20), described detector assembly body (20) is provided with holding tank (22) and the groove (23a) through this holding tank (22), wherein, in described pipe, medium detector (10) is arranged on described detector assembly body (20), to make described emission part (11), acceptance division (12) falls in described holding tank (22), and described conduit (15) is through described groove (23a).
12. 1 kinds of detector assemblies, is characterized in that, described detector assembly comprises:
Medium detector (10) in pipe, in described pipe, medium detector (10) is medium detector in the pipe according to claim 1-11 any one;
Detector assembly body (20), described detector assembly body (20) is provided with holding tank (22) and the through hole (23b) through this holding tank (22), wherein, in described pipe, medium detector (10) is arranged on described detector assembly body (20), to make described emission part (11), acceptance division (12) falls in described holding tank (22), and described conduit (15) is through described through hole (23b).
13. detector assemblies according to claim 12, it is characterized in that, described through hole (23b) is formed as bellmouth (231) and threaded hole (232) from being positioned at holding tank (22) a distance successively to the direction that two ends extend, described detector assembly also comprises fusiformis sleeve pipe (25) and threaded sleeve (26), described fusiformis sleeve pipe (25) have adapt with described bellmouth (231) the conical surface, described threaded sleeve (26) has the screw thread that matches with described threaded hole (232) and its one end has the conical surface adapted with described fusiformis sleeve pipe (25), described fusiformis sleeve pipe (25) and threaded sleeve (26) are arranged in described bellmouth (231) and threaded hole (232) respectively, described conduit (15) is through described fusiformis sleeve pipe (25) and threaded sleeve (26).
14. detector assemblies according to claim 13, it is characterized in that, described conduit (15) is made up of more piece, at least comprise through described conduit trough (14) the first conduit (151) and lay respectively at the second conduit (152) and the 3rd conduit (153) at described first conduit (151) two ends, described first conduit (151) and described second conduit (152) and the junction between described first conduit (151) and described 3rd conduit (153) are positioned at described fusiformis sleeve pipe (25).
15. detector assemblies according to claim 14, it is characterized in that, the internal diameter of connecting portion seamlessly transits between described first conduit (151) and described second conduit (152) and between described first conduit (151) and described 3rd conduit (153).
16. detector assemblies according to claim 14, is characterized in that, described second conduit (152) and/or the 3rd conduit (153) are flexible conduit.
17. detector assemblies according to claim 11-16 any one, it is characterized in that, the bottom of described holding tank (22) is vertically arranged with boss (21), described boss (21) contacts with described conduit (15), jointly to retrain described conduit (15) with described substrate (13).
18. detector assemblies according to claim 11-16 any one, it is characterized in that, described detector body (20) is provided with installed surface (24), described substrate (13) is fixedly mounted by this installed surface (24) and described detector body (20).
19. detector assemblies according to claim 11-16 any one, it is characterized in that, in described pipe, medium detector (10) is connected with circuit board, and the contact conductor of described light source (16) and described photoelectric detector (17) is connected electrically on described circuit board.
20. detector assemblies according to claim 11-16 any one, it is characterized in that, the material of described conduit (15) is plastics, glass, quartz or their combination.
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Cited By (1)
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| CN108852357A (en) * | 2017-05-16 | 2018-11-23 | ndd医药技术股份有限公司 | Method for the holding meanss of respiratory siphon and for reading the coding in breathing pipe surface |
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| CN101561517A (en) * | 2009-05-12 | 2009-10-21 | 广州市怡文科技有限公司 | Non-contact type detector and detecting method of liquid in pipe |
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| CN108852357A (en) * | 2017-05-16 | 2018-11-23 | ndd医药技术股份有限公司 | Method for the holding meanss of respiratory siphon and for reading the coding in breathing pipe surface |
| CN108852357B (en) * | 2017-05-16 | 2021-08-17 | ndd医药技术股份有限公司 | Holding device for a breathing tube and method for reading a code on the surface of a breathing tube |
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| CN105158814B (en) | 2018-11-20 |
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