Utility model content
The utility model aims to provide a kind of laser sensing equipment detected for gas concentration, simple in construction, userJust, effective gas journey of the object gas to light absorbs can be changed as the case may be, so as to change the monitoring range and minimum of equipmentDetectable limit.
To achieve the above object, the laser sensing equipment provided by the utility model detected for gas concentration, includingLaser probe, fast joint, connecting rod, speculum and pedestal；The fast joint is located at the end of the laser probe, the connectionBar is removably attachable between the fast joint and the pedestal, the speculum on the pedestal, and its front withThe laser probe is relative.
In use, when laser probe sends laser, through speculum after gas of the laser through probe and speculumReflex in laser probe, that is, complete the detection to the gas in this section of effective gas journey.This is used for the laser that gas concentration is detectedIn sensing equipment, connecting rod is removably attachable between fast joint and pedestal, specifically can according to using need select connecting rodLength, that is to say, that the length of the connecting rod can be customized freely, and user can change target by adjustment period lengthGas is to effective gas journey of light absorbs, and so as to change the detection range and the minimum detection limit of equipment, harmony is good, applicableScope is wide.The gas concentration such as to be detected is relatively low, then can select longer connecting rod, to increase effective gas journey, improves detection essenceDegree.
In addition, the connecting rod can according to circumstances select its length when in use, wherein it is possible to which connecting rod is set to respectivelyLength is planted, is selected as needed when using, connecting rod can also be set to include the first linkage section and the second linkage section, itsIn the lower section of the first linkage section be provided with cavity, the second linkage section can slide along along the cavity, i.e., in use, direct basisNeed to adjust length of second linkage section in the cavity of the first linkage section, it is easy to use.
Preferably, the speculum is with the horizontal default inclination angle.
Preferably, the top of the pedestal is provided with the mounting groove horizontal by the default inclination angle, the speculumThe back side is adhered in the mounting groove.
Preferably, the mounting groove is additionally provided with discharge outlet, and the discharge outlet is located at the relatively low side of the mounting groove.
Preferably, the default inclination angle is 17 °.
Preferably, the front of the speculum is provided with glass microballoon.
Preferably, the front of the speculum is provided with smooth plastic film layers.
Preferably, the connection between the connecting rod and the pedestal is to be threadedly coupled.
Preferably, the quantity of the connecting rod is three.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginningSame or similar element or element with same or like function are represented to same or similar label eventually.Below by ginsengThe embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility modelLimitation.
Fig. 1 is the structural representation of the laser sensing equipment for being used for gas concentration detection of the utility model embodiment.Such asShown in Fig. 1, a kind of laser sensing equipment detected for gas concentration of the utility model embodiment offer, including laser probe 1,Fast joint 2, connecting rod 3, speculum 4 and pedestal 5；Fast joint 2 is located at the end of laser probe 1, and connecting rod 3 is detachably connectedBetween fast joint 2 and pedestal 5, speculum 4 is on pedestal 5, and its front is relative with laser probe 1.
In use, when laser probe 1 sends laser, it is reflected after gas of the laser through probe and speculum 4Mirror 4 is reflexed in laser probe 1, that is, completes the detection to the gas in this section of effective gas journey.This is used for what gas concentration was detectedIn laser sensing equipment, connecting rod 3 is removably attachable between fast joint 2 and pedestal 5, specifically can according to using need selectionThe length of connecting rod 3, that is to say, that the length of the connecting rod 3 can be customized freely, user can by adjustment period length so as toEffective gas journey of the object gas to light absorbs is changed, so as to change the detection range and the minimum detection limit of equipment, is coordinatedProperty is good, applied widely.The gas concentration such as to be detected is relatively low, then can select longer connecting rod 3, to increase effective gas journey,Improve accuracy of detection.
In addition, the connecting rod 3 can according to circumstances select its length when in use, wherein it is possible to which connecting rod 3 is set toVarious length, selected as needed when using, connecting rod 3 can also be set to include the first linkage section and the second connectionSection, wherein the lower section of the first linkage section is provided with cavity, the second linkage section can be slided along along the cavity, i.e., in use, directlyLength of the second linkage section of regulation in the cavity of the first linkage section as needed is connect, it is easy to use.
In the above-described embodiments, speculum 4 is with the horizontal default inclination angle, i.e., when in use, speculum 4 horizontal byCertain angle, when monitoring pipeline, the inclination angle is met to airflow direction, and dust can be blown away, even under rugged environment,Also the positive cleaning of the speculum 4 can be kept, it is to avoid it influences laser reflection effect.
In the above-described embodiments, speculum 4 be located at pedestal 5 on, its inclination angle can by pedestal 5 cushioning part cause thisThe formation of speculum 4 and the inclination angle of horizontal plane, it is contemplated that the stability in use of the speculum 4, in the present embodiment, such as Fig. 2, Fig. 3It is shown, the mounting groove 51 horizontal by default inclination angle is provided with the top of pedestal 5, the back side of speculum 4 is adhered to mounting grooveIn 51.
In the above-described embodiments, mounting groove 51 is additionally provided with discharge outlet 52, and discharge outlet 52 is located at the relatively low side of mounting groove 51,In detection process, if there is ponding to fall into the front of speculum 4, ponding will fill the discharge outlet 52 and flow out, it is to avoid ponding influencesLight reflection effect.
In the above-described embodiments, it is 17 ° to preset inclination angle, and larger inclination angle may influence reflection case, and less inclination angle is clearThe effect of reason is inadequate.
In the above-described embodiments, glass microballoon is provided with the front of speculum 4, glass microballoon has higher refractive index,When Ray Of Light is irradiated to the preceding surface of microballon at any angle within the specific limits, due to microballon high refraction action and optically focusedAfter microballon on outermost reflector, reflecting layer goes back light along incident ray direction reflected in parallel just to form retroreflecting.Therefore, even if this reflecting surface tilts certain angle, light can also be reflected back, and reflection efficiency is higher than diffusing reflection.In addition, shouldSpeculum 4 provided with glass microballoon so that reflection of this equipment to light has high stability, even if occurring judder,Optical signal will not also produce big fluctuation.
In the above-described embodiments, smooth plastic film layers are provided with the front of speculum 4, can wiped in real time, convenient pairCleaned in the front of speculum 4, it is to avoid because dust etc. is impacted to light reflection.
In the above-described embodiments, it is detachably connected between each part, simple in construction, dismounting is flexible, wherein, connecting rod 3Connection between pedestal 5 is is threadedly coupled, and screw-coupling process is simple, stability is good.
In the above-described embodiments, the quantity of connecting rod 3 can select one, but the stability of a connecting rod 3 is bad,If being measured under poor operating mode, unavoidable collide with etc. causes it to damage, then influence detection progress.In the present embodimentIn, the quantity of connecting rod 3 is set to three, Stability Analysis of Structures, and will not be due to the entrance of the more influence air of the quantity of connecting rod 3.Certainly, the quantity of the connecting rod 3 can also be from two or four etc..
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " widthDegree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitableThe orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawingsOr position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device orElement must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility modelSystem.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importanceOr the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express orImplicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or more, removeIt is non-separately to have clearly specific limit.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " GuIt is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can beMechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be twoThe connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basisConcrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second featureCan be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, first is specialLevy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or onlyRepresent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be withBe fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically showThe description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are describedPoint is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned termState and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be withCombined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this areaTechnical staff the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be enteredRow is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment isExemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility modelIt is interior above-described embodiment to be changed, changed, replaced and modification.