CN213633180U - Fluorescence spectrometer - Google Patents

Abstract

The utility model provides a fluorescence spectrum appearance, it includes: air pump, cavity, a pair of luminous light source core plate that is used for, a pair of sensor core plate and the sensitive subassembly that is used for detecting hazardous gas are provided with a pair of passageway that is used for the gas circulation in the cavity, and a pair of light source core plate sets up in the front side of cavity and with the access connection, and a pair of sensor core plate sets up in the rear side of cavity and with the access connection, and sensitive subassembly detachably sets up at the top of cavity and with the access connection, air pump and access connection. Through with sensitive subassembly detachably set up at the top of cavity, under the condition of guaranteeing fluorescence spectrum appearance normal detection function, the sensitive subassembly of being convenient for is dismantled and is installed from the cavity, the change of the sensitive subassembly of being convenient for, need not dismantle other parts of cavity, simplifies the change flow of sensitive subassembly, reduces user intensity of labour.

Description

Fluorescence spectrometer

Technical Field

The utility model relates to a hazardous gas check out test set technical field especially relates to a fluorescence spectrum appearance.

Background

In the prior art, a quartz glass tube (a sensitive element for short) coated with a fluorescent sensitive material is generally used in dangerous gas detection instruments such as explosives, toxic gas and the like, and the quartz glass tube is often required to be replaced for several days due to short service life. The fluorescence spectrometer in the prior art is usually an upper coordinate type or even an integrated structure, and needs to be integrally disassembled when a sensitive component is replaced, so that the fluorescence spectrometer is very inconvenient and has high labor intensity for users.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough, a fluorescence spectrometer is provided.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a fluorescence spectrometer, comprising: air pump, cavity, a pair of luminous light source core plate that is used for, a pair of sensor core plate and the sensitive subassembly that is used for detecting hazardous gas, be provided with a pair of passageway that is used for the gas circulation in the cavity, it is a pair of light source core plate sets up the front side of cavity and with the access connection, it is a pair of sensor core plate sets up the rear side of cavity and with the access connection, sensitive subassembly detachably sets up the top of cavity and with the access connection, the air pump with the access connection.

The utility model has the advantages that: through with sensitive subassembly detachably set up at the top of cavity, under the condition of guaranteeing fluorescence spectrum appearance normal detection function, the sensitive subassembly of being convenient for is dismantled and is installed from the cavity, the change of the sensitive subassembly of being convenient for, need not dismantle other parts of cavity, simplifies the change flow of sensitive subassembly, reduces user intensity of labour.

Further, the cavity includes: a pair of light source filter lens and a pair of sensor filter lens, it is a pair of light source filter lens set up the front side of cavity and with the passageway is connected, and it is a pair of sensor filter lens set up the rear side of cavity and with the passageway is connected, and is a pair of the core plate of light source corresponds through a pair of light source filter lens sets up the front side of cavity, and is a pair of the core plate of sensor corresponds through a pair of sensor filter lens sets up the rear side of cavity.

The beneficial effect of adopting the further scheme is that: the air pump, the cavity, a pair of light source filter lens, a pair of sensor filter lens, a pair of light source core plate that is used for luminous and a pair of setting that is used for detecting dangerous gaseous sensor core plate, a fluorescence spectrum appearance for the equipment is applicable to dangerous gaseous detection device, be convenient for carry out automatic replacement to the sensitive subassembly of fluorescence spectrum appearance, extract the sensitive subassembly that became invalid, and insert the fluorescence spectrum appearance with reserve sensitive subassembly, can accomplish sensitive subassembly change work, be convenient for realize the automatic function of changing of sensitive subassembly, reduce user intensity of labour, provide change efficiency.

Further, be provided with a pair of first mounting hole that is used for installing light source filter lens on the front side lateral wall of cavity, be provided with a pair of second mounting hole that is used for installing sensor filter lens on the rear side lateral wall of cavity, it is a pair of light source filter lens corresponds the setting in a pair of first mounting hole, it is a pair of sensor filter lens corresponds the setting in a pair of in the second mounting hole, a pair of first mounting hole and a pair of second mounting hole and the inside a pair of cavity the passageway corresponds the intercommunication.

The beneficial effect of adopting the further scheme is that: the setting of mounting hole, the installation of the filter lens of being convenient for and with the intercommunication of passageway, the installation and the dismantlement of the fluorescence spectrum appearance of being convenient for improve work efficiency.

Further, the cavity includes: a nuclear board support is gone up to the nuclear board of light source and is used for installing the sensor of the nuclear board of sensor, and is a pair of the nuclear board of light source corresponds through the nuclear board support of light source and a pair of light source filters the lens and is connected, and is a pair of the nuclear board of sensor corresponds through the nuclear board support of sensor and a pair of sensor filters the lens and connects.

The beneficial effect of adopting the further scheme is that: the installation and the dismantlement of nuclear core plate are convenient for to the setting of nuclear core plate support, improve work efficiency.

Furthermore, a pair of third mounting holes for mounting the sensitive component is formed in the top of the cavity, the pair of third mounting holes is connected with the channel, and the sensitive component is correspondingly mounted in the pair of third mounting holes.

The beneficial effect of adopting the further scheme is that: due to the arrangement of the third mounting hole, the sensitive assembly is convenient to mount and dismount, the sensitive assembly is convenient to replace, other parts of the cavity do not need to be dismounted, the replacement flow of the sensitive assembly is simplified, and the labor intensity of a user is reduced.

Further, the sensitive component includes: the pair of rod bodies, the pair of sensitive elements and the sensitive element mounting seat for mounting the sensitive elements are arranged at the bottom end of the sensitive element mounting seat, the pair of sensitive elements are correspondingly arranged on the side walls of the pair of rod bodies, and the pair of rod bodies are correspondingly arranged in the pair of third mounting holes.

The beneficial effect of adopting the further scheme is that: the pair of rod bodies, the pair of sensitive elements and the sensitive element mounting base are used for assembling the sensitive components suitable for the hazardous gas detection device, the sensitive components of the fluorescence spectrometer can be automatically replaced conveniently, the failed sensitive components are extracted out, the standby sensitive components are inserted into the fluorescence spectrometer, replacement of the sensitive components can be completed, the automatic replacement function of the sensitive components can be conveniently realized, the labor intensity of a user is reduced, and the replacement efficiency is improved.

Further, the sensitive component includes: and the pair of sealing rings are correspondingly sleeved on the pair of rod bodies.

The beneficial effect of adopting the further scheme is that: the sealing ring is arranged for sealing a gap at the joint of the sensitive component and the cavity, so that the air tightness of the fluorescence spectrometer is improved, and the stability and reliability of the fluorescence spectrometer are improved.

Further, the rod body is a hollow pipe body, the sensitive element mounting seat is of a hollow structure, and the rod body is connected with the hollow cavity of the sensitive element mounting seat.

The beneficial effect of adopting the further scheme is that: the rod body is a hollow pipe body, the sensitive element mounting seat is of a hollow structure, so that gas can conveniently enter the hollow cavity of the sensitive component from the channel of the cavity, the sensitive element can conveniently react with the gas, and the detection accuracy of the fluorescence spectrometer is improved.

Further, the sensitive component includes: the gas path plug is arranged on the side wall of the sensitive element mounting seat, and is connected with the hollow cavity of the sensitive element mounting seat.

The beneficial effect of adopting the further scheme is that: due to the arrangement of the gas path plug, a user can conveniently maintain the fluorescence spectrometer and lead out gas through the through hole at the position of the gas path plug according to actual needs, and the stability and reliability of the fluorescence spectrometer are improved.

Furthermore, the bottom of the cavity is provided with an air inlet hole and an air outlet hole, the air inlet hole and the air outlet hole are correspondingly connected with a pair of channels inside the cavity, the air inlet hole and the air outlet hole are connected with the air pump, and the air pump is a diaphragm pump.

The beneficial effect of adopting the further scheme is that: the arrangement of the air inlet hole and the air outlet hole facilitates the connection of the cavity and the air pump, facilitates the air pump to circularly introduce gas to be detected into the cavity, and improves the stability and reliability of the fluorescence spectrometer.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic view of an ascending state of a hazardous gas detection device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a usage status of the hazardous gas detection apparatus provided by the embodiment of the present invention.

Fig. 3 is a cross-sectional view of the internal structure of the hazardous gas detection device provided by the embodiment of the present invention.

Fig. 4 is a top view of a hazardous gas detection device according to an embodiment of the present invention.

Figure 5 is a schematic view of the structure shown in figure 4 taken along section line a-a.

Fig. 6 is a schematic view of the structure shown in fig. 4 taken along section line B-B.

Figure 7 is a schematic view of the structure shown in figure 4 taken along section line D-D.

Fig. 8 is a right side view of a hazardous gas detection device provided by an embodiment of the present invention;

figure 9 is a top view of the structure shown in figure 8 taken along section line C-C.

Fig. 10 is a perspective view of a separation structure of a fluorescence spectrometer and a sensitive component according to an embodiment of the present invention.

Fig. 11 is a rear view of a separated structure of a fluorescence spectrometer and a sensitive component according to an embodiment of the present invention.

Fig. 12 is a right side view of a separation structure of a fluorescence spectrometer and a sensitive component according to an embodiment of the present invention.

Fig. 13 is a top view of a separation structure of a fluorescence spectrometer and a sensing assembly according to an embodiment of the present invention.

Fig. 14 is a front view of the structure shown in fig. 13 taken along section line a-a.

Fig. 15 is a perspective view of an assembly structure of a fluorescence spectrometer and a sensing assembly according to an embodiment of the present invention.

Fig. 16 is a top view of an assembly structure of a fluorescence spectrometer and a sensing assembly according to an embodiment of the present invention.

Fig. 17 is a front view of the structure shown in fig. 16 taken along section line a-a.

Fig. 18 is a side view of the structure shown in fig. 16 taken along section line B-B.

Fig. 19 is a side view of the structure shown in fig. 16 taken along section line C-C.

Fig. 20 is an exploded view of a separation structure of a fluorescence spectrometer and a sensitive component according to an embodiment of the present invention.

The reference numbers illustrate: 1-a base; 2-fluorescence spectrometer; 3-a sensitive component; 4-storage; 5-a lifting mechanism; 6-a rotating mechanism; 7-an air pump; 8, a cavity; 9-light source filter lens; 10-sensor filter optics; 11-a sensor core board; 12-a channel; 13-a first mounting hole; 15-a light source core plate; 16-a third mounting hole; 17-a rod body; 18-a sensing element; 19-a sealing ring; 20-sensitive element mount; 21-an air intake; 22-air outlet holes; 23-a top plate; 24-a base plate; 25-a scaffold; 26-a first motor; 27-a lead screw; 28-lead screw nut; 29-a lifter plate; 30-a guide bar; 31-a spline shaft; 32-a second motor; 33-a driving pulley; 34-a driven pulley; 35-spline housing; 36-a synchronous belt; 37-a controller; 38-a sensor; 39-code wheel; 40-a turntable; 41-a turntable connection; 42-a storage box; 43-linear bearings; 44-a first C-shaped clamp spring; 45-shaft end limiting block; 46-a first ball bearing; 47-a second ball bearing; 48-a second C-shaped clamp spring; 49-deep groove ball bearing; 50-a rotating hollow shaft; 51-gas path plug; 52-light source core plate support; 53-gas circuit joint; 54-spectrometer support; a 55-O type seal ring; 56-sealing ring compression ring; 57-sensor core plate support.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The embodiment of the utility model provides a fluorescence spectrum appearance, it includes: air pump 7, cavity 8, a pair of luminous light source core plate 15 that is used for, a pair of sensor core plate 11 and the sensitive subassembly 3 that is used for detecting hazardous gas, be provided with a pair of passageway 12 that is used for the gas circulation in the cavity 8, it is a pair of light source core plate 15 sets up the front side of cavity 8 and with passageway 12 is connected, and is a pair of sensor core plate 11 sets up the rear side of cavity 8 and with passageway 12 is connected, sensitive subassembly 3 detachably sets up the top of cavity 8 and with passageway 12 is connected, air pump 7 with passageway 12 is connected.

The utility model has the advantages that: through with sensitive subassembly detachably set up at the top of cavity, under the condition of guaranteeing fluorescence spectrum appearance normal detection function, the sensitive subassembly of being convenient for is dismantled and is installed from the cavity, the change of the sensitive subassembly of being convenient for, need not dismantle other parts of cavity, simplifies the change flow of sensitive subassembly, reduces user intensity of labour.

The utility model provides a hazardous gas detection device with fluorescence spectrum appearance combination that provides of the utility model provides a, it includes: a base 1, a fluorescence spectrometer 2 for detecting hazardous gas, a plurality of groups of sensitive components 3 for detecting hazardous gas, a storage bin 4 for storing the plurality of groups of sensitive components 3, a lifting mechanism 5 for lifting the storage bin 4 and a rotating mechanism 6 for rotating the storage bin 4, the fluorescence spectrometer 2, the lifting mechanism 5 and the rotating mechanism 6 are arranged on the base 1, the storage bin 4 is movably arranged at the top of the base 1, the lifting mechanism 5 and the rotating mechanism 6 are connected with the storage bin 4, a plurality of groups of sensitive assemblies 3 are arranged around the periphery of the bottom of the storage bin 4, the fluorescence spectrometer 2 and the plurality of sets of the sensitive components 3 are positioned between the base 1 and the storage bin 4, and one set of the sensitive components 3 is inserted at the top of the fluorescence spectrometer 2.

The hazardous gas detection device is provided with the lifting mechanism and the rotating mechanism through design, sensitive components in the storage bin are controlled to be sequentially replaced into the fluorescence spectrometer for use, the lifting mechanism is used for lifting the storage bin, the current sensitive components are pulled out of the fluorescence spectrometer, the rotating mechanism rotates the storage bin, the next sensitive component corresponds to the fluorescence spectrometer, the lifting mechanism is used for falling the storage bin, the next sensitive component is inserted into the fluorescence spectrometer, the automatic replacement function of the sensitive components in the hazardous gas detection device is realized, the automation of the hazardous gas detection device is improved, and the labor intensity of a user is reduced.

Wherein, the embodiment of the utility model provides a ten groups of sensitive subassemblies have been chooseed for use, and every sensitive subassembly contains 2 different sensing elements (different fluorescence sensitive material).

The air pump can be a diaphragm pump which provides negative pressure to suck an air source to be detected into the fluorescence spectrometer, and the gas components and content are detected through photoelectric conversion and various algorithms. When the service life of the quartz glass tube (referred to as a sensitive component for short) coated with the fluorescent sensitive material is over, the detector feeds back to the controller, the controller controls the lifting mechanism and the rotating mechanism to replace the next standby sensitive component, and the controller controls the corresponding transmission part to replace.

The light source core board can provide light with a specific wavelength, the light passes through the light source filter lens with the specific wavelength and then irradiates onto the fluorescent sensitive material on the sensitive element (certain components contained in gas in a gas path react with the fluorescent sensitive material), the reflected light passes through the sensor filter lens with the specific wavelength and irradiates onto the sensor on the sensor core board to be received, the signal is converted into an electric signal, and then the electric signal is analyzed by the main control and driving board (namely, the controller), so that the content and the components of the gas are identified.

As shown in fig. 1 to 9, further, the base 1 includes: the fluorescence spectrometer 2 is arranged on the periphery of the top plate 23, the lifting mechanism 5 is arranged on the bottom plate 24, the rotating mechanism 6 is arranged on the top of the top plate 23, and the storage bin 4 is movably arranged on the top of the top plate 23. The arrangement of the top plate, the bottom plate and the support is convenient for installation and maintenance of the lifting mechanism and the rotating mechanism, and stability and reliability of the hazardous gas detection device are improved.

As shown in fig. 1 to 9, the lifting mechanism 5 further includes: first motor 26, lead screw 27, with lead screw 27 complex screw nut 28, lifter plate 29, guide bar 30 and integral key shaft 31, first motor 26 sets up roof 23 top, lead screw 27 runs through roof 23, lifter plate 29 with screw nut 28 sets up liftably roof 23 with between the bottom plate 24, screw nut 28 sets up in the lifter plate 29, first motor 26 passes through lead screw 27 with screw nut 28 is connected, the vertical setting of guide bar 30 is between bottom plate 24 and roof 23, lifter plate 29 slidable ground cover is established on the guide bar 30, integral key shaft 31 runs through roof 23, the both ends of integral key shaft 31 correspond with lifter plate 29 with storage bin 4 connects. First motor, lead screw, with the setting of lead screw complex screw nut, lifter plate, guide bar and integral key shaft, the equipment elevating system of being convenient for improves elevating system's stability and reliability, reduction in production cost.

As shown in fig. 1 to 9, the method may further include: the inner ring of the linear bearing 43 is sleeved on the guide rod, and the outer ring of the linear bearing 43 is connected with the lifting plate. In order to facilitate the fixing of the linear bearing 43, a first C-shaped clamp spring 44 can be sleeved on the guide rod, and the first C-shaped clamp spring 44 is abutted against the linear bearing 43 to prevent the linear bearing 43 from shaking. The bottom end of the spline shaft 31 can be provided with a shaft end limiting block 45, the shaft end limiting block 45 is arranged at the bottom of the lifting plate 29, the bottom end of the spline shaft 31 is connected with the lifting plate 29 through the shaft end limiting block 45, the top of the lifting plate is provided with a first ball bearing 46, and the spline shaft 31 is sleeved with the first ball bearing 46. Two bearings (interference fit) are arranged in the lifting plate, after the spline shaft penetrates through the two bearings, the shaft end limiting block is fixed on the spline shaft by using two jackscrews to serve as a lower limiting block, and a shaft retaining ring is arranged on the top of the top bearing to serve as an upper limiting block. In this way, the spline shaft can rotate and can ascend and descend along with the lifting plate.

As shown in fig. 1 to 9, further, the rotating mechanism 6 includes: second motor 32, driving pulley 33, driven pulley 34 and spline housing 35, spline shaft 31 rotationally with lifter plate 29 connects, spline housing 35 is the internal spline structure, spline shaft 31 is the external spline structure, second motor 32 sets up on the roof 23, driving pulley 33 with second motor 32 connects, spline housing 35 cover is established spline shaft 31's the outside, driven pulley 34 cover is established the outside of spline housing 35, driving pulley 33 pass through hold-in range 36 with driven pulley 34 connects. The second motor, the driving belt wheel, the driven belt wheel and the spline housing are arranged, so that the rotating mechanism is convenient to assemble, the stability and the reliability of the rotating mechanism are improved, and the production cost is reduced.

As shown in fig. 1 to 9, a second ball bearing 47 and a second C-type clamp spring 48 are disposed at the bottom of the top plate 23, the second ball bearing 47 and the second C-type clamp spring 48 are sleeved on a rotating hollow shaft 50, the rotating hollow shaft is sleeved on a spline sleeve, the second ball bearing 47 abuts against the bottom end of the top plate 23, and the second C-type clamp spring 48 abuts against the second ball bearing 47. A deep groove ball bearing 49 is embedded in the top plate, and the deep groove ball bearing 49 is sleeved on the outer side of the rotary hollow shaft 50. The rotary hollow shaft 50 is sleeved outside the spline housing 35, and the driven pulley 34 is sleeved outside the rotary hollow shaft 50. The spline housing and the spline shaft can slide relatively. The spline housing, the rotary hollow shaft and the driven belt wheel are fastened into a whole through screws and jackscrews. When the second motor rotates, the combination of the first motor and the second motor is driven to rotate, and meanwhile, the spline housing also drives the spline shaft to rotate. The spline shaft is meshed with the spline sleeve through a spline.

Further, the first motor 26 and the second motor 32 are servo motors.

As shown in fig. 1 to 9, further, the rotating mechanism 6 includes: the controller 37 is arranged on the bottom plate 24, the sensor 38 is arranged on the top of the top plate 23, the code wheel 39 is arranged on the top end face of the driving pulley 33, the sensor 38 and the code wheel 39 are correspondingly arranged, and the sensor 38, the first motor 26 and the second motor 32 are all connected with the controller 37. Due to the arrangement of the controller, the sensor and the coded disc, the rotating mechanism can rotate accurately, the sensitive component can be replaced accurately, the hazardous gas detection device can be controlled automatically, and the stability and the reliability of the hazardous gas detection device are improved.

As shown in fig. 1 to 9, further, the storage bin 4 includes: the rotary plate 40 is movably arranged on the top of the top plate 23, the spline shaft 31 is connected with the rotary plate 40 through the rotary plate connecting piece 41, and a plurality of groups of the sensitive assemblies 3 are arranged around the periphery of the bottom of the storage bin 4. The arrangement of the turntable and the turntable connecting piece facilitates the installation and maintenance of the spline shaft and the storage bin, and reduces the production cost.

As shown in fig. 1 to 9, further, the storage bin 4 includes: the storage boxes 42 are provided with a pair of through holes for mounting sensitive components at the tops of the storage boxes 42, the storage boxes 42 and the fluorescence spectrometer 2 are arranged around the top periphery of the top plate 23, and the storage boxes 42 are arranged corresponding to the plurality of groups of sensitive components 3. The arrangement of a plurality of storage boxes is convenient for store a plurality of spare sensitive components, is convenient for the automatic replacement of the sensitive components and prolongs the spare time of the storage bin.

The mechanical principle and the process for replacing the sensitive element are as follows:

1. when the detector of the fluorescence spectrometer senses that the service life of the sensitive element is exhausted, the detector informs a controller (namely a main control and driving board); 2. the controller controls the first motor to rotate to drive the screw rod to rotate, so that the screw rod nut, the lifting plate, the spline shaft, the turntable and the sensitive component are driven to ascend along the guide rod, the purpose is to separate the sensitive component from the storage box, and the sensitive component with the exhausted service life is separated from the fluorescence spectrometer, so that the gas circuit is disconnected; in the lifting process, the guide rods on two sides and the linear bearings enable the movement to be smooth. The inner ring of the linear bearing is sleeved at the top of the spline shaft, and the outer ring of the linear bearing is connected with the guide rod. Remarking: the sensitive component needs to be sealed by a gas circuit, so that a sealing ring structure is arranged in the gas circuit, and the sealing ring is an O-shaped sealing ring. The lower end of the sensitive component is separated from the sealing ring in the ascending process, and the gas circuit is disconnected; after descending, the sensitive component is inserted into the sealing ring again, the air path is closed, the number of the sealing rings at the upper end of the sensitive assembly is large, the number of the sealing rings at the lower end of the sensitive assembly is small, and the sensitive component can move along with the structure at the upper end and can be separated from the structural component at the lower end due to friction. 3. When the first motor rotates to the position, the first motor feeds back to the controller, and the controller controls the second motor to rotate by a preset angle, so that the next sensitive component rotates to a position right above the fluorescence spectrometer. The principle is as follows: the second motor rotates to drive the driving belt wheel to rotate, and the synchronous belt drives the driven belt wheel to rotate, so that the rotary hollow shaft, the spline sleeve, the spline shaft, the turntable connecting piece, the turntable and the sensitive assembly are driven to rotate. Wherein, the rotary hollow shaft 50 is sleeved on the outer side of the spline housing 35, and the driven pulley 34 is sleeved on the outer side of the rotary hollow shaft 50. Remarking: the coded disc can be a light-cutting coded disc, and the sensor can be an initial position sensor, the light-cutting coded disc and the initial position sensor provide an initial position resetting function. 4. After the turntable rotates to a designated position, the servo motor encoder feeds back the controller, the controller controls the first motor to rotate to drive the lead screw to rotate, so that the lead screw nut, the lifting plate, the spline shaft, the turntable and the sensitive assembly are driven to descend along the guide rod, the purpose is to insert the sensitive assembly with the exhausted service life into the storage box and insert the next new sensitive assembly into the fluorescence spectrometer, and the gas path is closed; 5. when the sensitive component is inserted into the storage box, the servo motor encoder informs the controller, and the controller controls the air pump to work, so that air suction is performed, and gas detection is performed through the fluorescence spectrometer.

Further, the cavity 8 includes: a pair of light source filter lens 9 and a pair of sensor filter lens 10, a pair of light source filter lens 9 set up in the front side of cavity 8 and with passageway 12 is connected, a pair of sensor filter lens 10 set up the rear side of cavity 8 and with passageway 12 is connected, a pair of light source core board 15 is corresponding through a pair of light source filter lens 9 sets up the front side of cavity 8, a pair of sensor core board 11 is corresponding through a pair of sensor filter lens 10 sets up the rear side of cavity 8.

The air pump, the cavity, a pair of light source filter lens, a pair of sensor filter lens, a pair of light source core plate that is used for luminous and a pair of setting that is used for detecting dangerous gaseous sensor core plate, a fluorescence spectrum appearance for the equipment is applicable to dangerous gaseous detection device, be convenient for carry out automatic replacement to the sensitive subassembly of fluorescence spectrum appearance, extract the sensitive subassembly that became invalid, and insert the fluorescence spectrum appearance with reserve sensitive subassembly, can accomplish sensitive subassembly change work, be convenient for realize the automatic function of changing of sensitive subassembly, reduce user intensity of labour, provide change efficiency.

Further, be provided with a pair of first mounting hole 13 that is used for installing light source filter lens 9 on the front side lateral wall of cavity 8, be provided with a pair of second mounting hole that is used for installing sensor filter lens 10 on the rear side lateral wall of cavity 8, it is a pair of light source filter lens 9 corresponds the setting in a pair first mounting hole 13, a pair sensor filter lens 10 corresponds the setting in a pair in the second mounting hole, a pair first mounting hole 13 and a pair the second mounting hole is with the inside a pair of cavity 8 passageway 12 corresponds the intercommunication.

The setting of mounting hole, the installation of the filter lens of being convenient for and with the intercommunication of passageway, the installation and the dismantlement of the fluorescence spectrum appearance of being convenient for improve work efficiency.

Further, the cavity 8 includes: the light source core plate comprises a light source core plate support 52 used for mounting a light source core plate 15 and a sensor core plate support 57 used for mounting a sensor core plate 11, wherein the light source core plate 15 is correspondingly connected with the light source filter lens 9 through the light source core plate support 52, and the sensor core plate 11 is correspondingly connected with the sensor filter lens 10 through the sensor core plate support 57.

The installation and the dismantlement of nuclear core plate are convenient for to the setting of nuclear core plate support, improve work efficiency.

Further, a pair of third mounting holes 16 for mounting the sensitive component 3 is formed in the top of the cavity 8, the pair of third mounting holes 16 is connected with the channel 12, and the sensitive component 3 is correspondingly mounted in the pair of third mounting holes 16.

Due to the arrangement of the third mounting hole, the sensitive assembly is convenient to mount and dismount, the sensitive assembly is convenient to replace, other parts of the cavity do not need to be dismounted, the replacement flow of the sensitive assembly is simplified, and the labor intensity of a user is reduced.

Further, the sensitive assembly 3 comprises: the pair of rods 17, the pair of sensors 18 and the sensor mounting base 20 for mounting the sensors 18, the pair of rods 17 are disposed at the bottom end of the sensor mounting base 20, the pair of sensors 18 are correspondingly disposed on the sidewalls of the pair of rods 17, and the pair of rods 17 are correspondingly mounted in the pair of third mounting holes 16.

The pair of rod bodies, the pair of sensitive elements and the sensitive element mounting base are used for assembling the sensitive components suitable for the hazardous gas detection device, the sensitive components of the fluorescence spectrometer can be automatically replaced conveniently, the failed sensitive components are extracted out, the standby sensitive components are inserted into the fluorescence spectrometer, replacement of the sensitive components can be completed, the automatic replacement function of the sensitive components can be conveniently realized, the labor intensity of a user is reduced, and the replacement efficiency is improved.

Further, the sensitive assembly 3 comprises: and the pair of sealing rings 19 are correspondingly sleeved on the pair of rod bodies 17.

The sealing ring is arranged for sealing a gap at the joint of the sensitive component and the cavity, so that the air tightness of the fluorescence spectrometer is improved, and the stability and reliability of the fluorescence spectrometer are improved.

Further, the rod body 17 is a hollow tube body, the sensing element mounting seat 20 is a hollow structure, and the rod body 17 is connected with the hollow cavity of the sensing element mounting seat 20.

The rod body is a hollow pipe body, the sensitive element mounting seat is of a hollow structure, so that gas can conveniently enter the hollow cavity of the sensitive component from the channel of the cavity, the sensitive element can conveniently react with the gas, and the detection accuracy of the fluorescence spectrometer is improved.

Further, the sensitive component includes: the gas circuit plug 51 is arranged on the side wall of the sensitive element mounting seat 20, and the gas circuit plug 51 is connected with the hollow cavity of the sensitive element mounting seat 20.

Due to the arrangement of the gas path plug, a user can conveniently maintain the fluorescence spectrometer and lead out gas through the through hole at the position of the gas path plug according to actual needs, and the stability and reliability of the fluorescence spectrometer are improved.

Further, the bottom of the cavity 8 is provided with an air inlet 21 and an air outlet 22, the air inlet 21 and the air outlet 22 are correspondingly connected with the pair of channels 12 inside the cavity 8, the air inlet 21 and the air outlet 22 are connected with the air pump 7, and the air pump 7 is a diaphragm pump.

The arrangement of the air inlet hole and the air outlet hole facilitates the connection of the cavity and the air pump, facilitates the air pump to circularly introduce gas to be detected into the cavity, and improves the stability and reliability of the fluorescence spectrometer.

As shown in fig. 10 to 20, the air outlet hole is used for discharging the waste gas, and the air inlet hole is used for inputting the gas to be measured into the cavity. The inside of the rod body is also provided with a channel for gas circulation, the bottom end of the rod body is provided with a vent hole, and the sensing element is communicated with the channel on the rod body. The sensitive element mounting seat is provided with an air passage plug 51, and the cavity is also provided with a light source core plate support 52 for mounting a light source core plate. Air path joints 53 are respectively arranged on the air inlet hole and the air outlet hole. The bottom of the chamber may be provided with a spectrometer holder 54 and the chamber may be mounted on the spectrometer holder 54. Be provided with O type sealing washer 55 and sealing washer clamping ring 56 between cavity and the spectrum appearance support, the nuclear core plate of sensor is installed on the nuclear core plate support 57 of sensor that is used for installing nuclear core plate of sensor, and the nuclear core plate support of sensor is connected with the cavity.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A fluorescence spectrometer, comprising: air pump (7), cavity (8), a pair of luminous light source core plate (15), a pair of sensor core plate (11) and sensitive subassembly (3) that are used for detecting hazardous gas, be provided with a pair of passageway (12) that are used for the gas circulation in cavity (8), it is a pair of light source core plate (15) set up the front side of cavity (8) and with passageway (12) are connected, and are a pair of sensor core plate (11) set up the rear side of cavity (8) and with passageway (12) are connected, sensitive subassembly (3) detachably sets up the top of cavity (8) and with passageway (12) are connected, air pump (7) with passageway (12) are connected.

2. The fluorescence spectrometer of claim 1, wherein the chamber comprises: a pair of light source filter lens (9) and a pair of sensor filter lens (10), it is a pair of light source filter lens (9) set up the front side of cavity (8) and with passageway (12) are connected, it is a pair of sensor filter lens (10) set up the rear side of cavity (8) and with passageway (12) are connected, it is a pair of light source core board (15) correspond through a pair of light source filter lens (9) set up the front side of cavity (8), it is a pair of sensor core board (11) correspond through a pair of sensor filter lens (10) set up the rear side of cavity (8).

3. A fluorescence spectrometer according to claim 2, wherein the cavity (8) is provided with a pair of first mounting holes (13) for mounting the light source filter (9) on the front side wall thereof, and a pair of second mounting holes for mounting the sensor filter (10) on the rear side wall thereof, wherein the pair of light source filter (9) is correspondingly disposed in the pair of first mounting holes (13), the pair of sensor filter (10) is correspondingly disposed in the pair of second mounting holes, and the pair of first mounting holes (13) and the pair of second mounting holes are correspondingly communicated with the pair of channels (12) inside the cavity (8).

4. The fluorescence spectrometer of claim 2, wherein the chamber comprises: the light source core plate comprises a light source core plate support (52) and a sensor core plate support (57), wherein the light source core plate support (52) is used for installing a light source core plate (15), the sensor core plate support (57) is used for installing a sensor core plate (11), the light source core plate (15) is connected with the light source filter lens (9) in a corresponding mode through the light source core plate support (52), and the sensor core plate (11) is connected with the sensor filter lens (10) in a corresponding mode through the sensor core plate support (57).

5. A fluorescence spectrometer according to claim 1, wherein the top of the chamber (8) is provided with a pair of third mounting holes (16) for mounting the sensitive component (3), the pair of third mounting holes (16) is connected with the channel (12), and the sensitive component (3) is correspondingly mounted in the pair of third mounting holes (16).

6. A fluorescence spectrometer according to claim 5, characterized in that the sensitive assembly (3) comprises: the pair of the rods (17), the pair of the sensitive elements (18) and the sensitive element mounting seat (20) used for mounting the sensitive elements (18), the pair of the rods (17) are arranged at the bottom end of the sensitive element mounting seat (20), the pair of the sensitive elements (18) are correspondingly arranged on the side walls of the pair of the rods (17), and the pair of the rods (17) are correspondingly arranged in the pair of the third mounting holes (16).

7. The fluorescence spectrometer according to claim 6, characterized in that the sensitive assembly (3) comprises: and the pair of sealing rings (19) are correspondingly sleeved on the pair of rod bodies (17).

8. The fluorescence spectrometer according to claim 6, wherein the rod (17) is a hollow tube, the sensor mount (20) is a hollow structure, and the rod (17) is connected to the hollow cavity of the sensor mount (20).

9. The fluorescence spectrometer of claim 8, wherein the sensing assembly comprises: the gas circuit plug (51) is arranged on the side wall of the sensitive element mounting seat (20), and the gas circuit plug (51) is connected with the hollow cavity of the sensitive element mounting seat (20).

10. The fluorescence spectrometer according to claim 1, wherein the bottom of the chamber (8) is provided with an air inlet hole (21) and an air outlet hole (22), the air inlet hole (21) and the air outlet hole (22) are correspondingly connected with a pair of channels (12) inside the chamber (8), the air inlet hole (21) and the air outlet hole (22) are connected with the air pump (7), and the air pump (7) is a diaphragm pump.

Images