CN114216856B - Sample cell for receiving optical signal and device thereof - Google Patents
Sample cell for receiving optical signal and device thereof Download PDFInfo
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- CN114216856B CN114216856B CN202111548001.6A CN202111548001A CN114216856B CN 114216856 B CN114216856 B CN 114216856B CN 202111548001 A CN202111548001 A CN 202111548001A CN 114216856 B CN114216856 B CN 114216856B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 42
- 239000013307 optical fiber Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 244000309464 bull Species 0.000 claims description 6
- 206010040007 Sense of oppression Diseases 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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Abstract
The invention discloses a sample cell for receiving optical signals and a device thereof, the sample cell comprises an adjusting block and a reflecting mirror which are connected in a rotating way, a movable rod is movably extended from the adjusting block, the movable rod is fixedly connected with a threaded rod, the outer side of the threaded rod is in threaded connection with a locking nut, an internal thread groove with a sliding rod is formed in the threaded rod, a pull rope is fixedly connected between the back of the reflecting mirror and the sliding rod, a inserted rod sliding groove with an extrusion head is formed in the sliding rod in an internal sliding way, a plurality of threaded arc plates are arranged on the outer side of the sliding rod, and the threaded arc plates are fixedly connected with the extrusion rod.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a sample cell for receiving optical signals and a device thereof.
Background
With the increasing development of science and technology, various industrial gases and living gases are generated in large quantities, and the gases cause great pollution to the environment, and with the continuous improvement of living standard of people, the requirements of people on living quality are also continuously improved, and the gases affecting living quality are also more and more repelled, so that the detection of various gas concentrations is very necessary.
In the prior art, the H2S gas ultraviolet spectrum detection device with the publication number of CN207662793U comprises an ultraviolet light source, an optical fiber collimation system, a long-optical-path gas absorption cell, an optical fiber focusing system, an ultraviolet optical fiber spectrometer and a computer, wherein a plurality of reflectors are arranged in the long-optical-path gas absorption cell, ultraviolet light entering the long-optical-path gas absorption cell is reflected among the reflectors for multiple times and then enters an optical fiber, and is transmitted to the ultraviolet optical fiber spectrometer by the optical fiber, and the gas is detected on line in real time by an ultraviolet differential absorption spectrum detection technology.
However, the prior art still has major drawbacks, such as: the reflector in the prior art cannot be adjusted in moving, deflecting and the like, if the reflector is dislocated during installation, an ultraviolet light path cannot effectively enter the optical fiber, and great inconvenience is brought to gas detection operation.
Disclosure of Invention
The present invention is directed to a sample cell for receiving optical signals and a device thereof, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the sample cell for receiving the optical signal comprises a sample cell with an optical inlet and an optical outlet at intervals at one end, wherein a reflecting mirror is arranged in the sample cell, the back surface of the reflecting mirror is rotationally connected with an adjusting block, the adjusting block is provided with a movable groove except for a surface connected with the reflecting mirror, the movable groove is connected with a baffle groove, a movable rod movably penetrates through the movable groove, and one end of the movable rod extending into the baffle groove is fixedly connected with a baffle;
the movable rod is fixedly connected with a threaded rod at one end far away from the baffle, the threaded rod is slidably extended out of the sample tank, a lock nut is connected with the outer side of one end of the threaded rod extending out of the sample tank in a threaded manner, an internal thread groove with a sliding rod is formed in the threaded rod in an axial direction of the threaded rod in a sliding manner, the sliding rod is slidably extended out of one end of the threaded rod far away from the adjusting block, a pull rope is fixedly connected to the back of the reflector, and the pull rope is movably extended into the internal thread groove and is movably connected to the sliding rod;
the utility model discloses a plunger rod, including the plunger rod, the plunger rod is fixed on the plunger rod, the plunger rod spout that the inside slip set up the plunger rod has been seted up along its axial in the slide bar, and the plunger rod slides and stretch out the one end that the slide bar kept away from the regulating block, the one end fixedly connected with plunger rod link plate that the plunger rod stretched out the slide bar, and fixedly connected with elastic sleeve between plunger rod link plate and the slide bar, it has two fixture blocks to slide in the plunger rod to stretch out, and fixedly connected with fixture block elastic connecting rod between two fixture blocks, and plunger rod spout is connected with the logical groove that supplies the fixture block to slide to pass, the slide bar outside is equipped with a plurality of screw thread arc boards, and screw thread arc board fixedly connected with slides the extrusion rod that stretches into the plunger rod spout, and fixedly connected with arc board elastic connecting rod between screw thread arc board and the slide bar, the extrusion head of plunger rod fixedly connected with cooperation oppression extrusion rod.
Preferably, the baffle is rotatably disposed in the baffle slot.
Preferably, the side wall of the sample cell through which the threaded rod far away from the reflecting mirror passes is provided with a threaded hole, and the threaded hole is in threaded connection with the threaded rod.
Preferably, a pull rope is fixedly connected to the middle parts of the four sides of the back of the reflector, internal thread grooves with sliding rods are formed in the threaded rods close to the reflector, and the pull ropes are matched with each other one by one to extend into the internal thread grooves and are movably connected with the sliding rods.
Preferably, the slide bar stretches into the one end internal rotation of internal thread groove and is provided with the carousel, and carousel fixedly connected with rotates the connection bull stick of stretching out the slide bar, the one end fixedly connected with stay cord connecting plate that the connection bull stick stretched out the slide bar, and the one end fixedly connected with that the stay cord stretched into the internal thread groove is on the stay cord connecting plate.
Preferably, the back of the reflector is fixedly connected with a roller sleeve of which the inside is rotationally provided with a roller, an open slot is formed in one end, close to the adjusting block, of the roller sleeve, and the roller and the adjusting block are fixedly connected through a roller connecting rod which movably stretches out of the open slot.
Preferably, the outside of the light inlet is communicated with a first optical fiber, and the outside of the light outlet is communicated with a second optical fiber.
Preferably, the sample cell is provided with an air inlet and an air outlet, and check valves are arranged in the air inlet and the air outlet.
Preferably, the two ends inside the sample cell are respectively provided with a reflecting mirror, the reflecting surfaces of the two reflecting mirrors are opposite, and the back surface of the reflecting mirror far away from the light inlet is rotationally connected with an adjusting block.
An optical signal receiving apparatus provided with the sample cell for optical signal reception as described above.
Compared with the prior art, the invention has the beneficial effects that:
according to the sample cell for receiving the optical signal and the device thereof, the position of the reflecting mirror is adjusted by arranging the threaded rod, the position of the reflecting mirror is fixed by utilizing the locking nut and the threaded self-locking effect, the inclination angle of the reflecting mirror is adjusted by arranging the pull rope and the slide rod, the inclination angle of the reflecting mirror is roughly adjusted by sliding the slide rod by utilizing the matched arrangement of the threaded arc plate, the extrusion rod and the extrusion head, the inclination angle of the reflecting mirror is finely adjusted and locked by the spiral movement of the slide rod, and the adjustment efficiency of the inclination angle of the reflecting mirror is improved.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of the area B in FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of the region C in FIG. 1;
FIG. 5 is a schematic view of the structure of FIG. 4 showing the snap-on condition of the slide bar and the plunger;
FIG. 6 is a schematic cross-sectional view of section D of FIG. 5;
FIG. 7 is a schematic view of a back side connection structure of a reflector according to the present invention;
FIG. 8 is a schematic diagram of a three-dimensional structure of a regulating block according to the present invention;
FIG. 9 is a schematic diagram showing the cooperation of the movable rod and the adjusting block.
In the figure: 1 sample cell, 2 light inlet, 3 light outlet, 4 reflector, 5 regulating block, 51 movable groove, 52 baffle groove, 6 movable rod, 7 baffle, 8 threaded rod, 9 lock nut, 10 slide bar, 101 inserted link chute, 11 stay cord, 12 carousel, 13 connecting rod, 14 stay cord connecting plate, 15 roller sleeve, 151 open slot, 16 roller, 17 roller connecting rod, 18 stay cord connecting seat, 19 buffer spacer, 20 first optic fibre, 21 second optic fibre, 22 air inlet, 23 gas outlet, 24 check valve, 25 inserted link, 26 inserted link connecting plate, 27 elastic sleeve, 28 fixture block, 29 fixture block elastic connecting rod, 30 screw thread arc plate, 31 extrusion rod, 32 arc plate elastic connecting rod, 33 extrusion head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution:
embodiment one:
the utility model provides a sample cell for optical signal receives, including sample cell 1, light inlet 2 is offered to sample cell 1 left end upper and lower interval, light outlet 3, hold the gas of waiting to detect in the sample cell 1, ultraviolet ray light gets into inside sample cell 1 through light inlet 2, ultraviolet ray light leaves sample cell 1 through light outlet 3 after the internal multiple reflection of sample cell 1, ultraviolet ray light that leaves sample cell 1 detects through the optical fiber arrival spectrometer department, sample cell 1 inside left and right sides end respectively is provided with reflector 4, and two reflector 4 reflecting surfaces are relative, ultraviolet ray light is multiple reflection between two reflectors 4 and leaves sample cell 1 through light outlet 3;
the right side surface of the reflector 4 at the right end is rotationally connected with an adjusting block 5, the adjusting block 5 is provided with a movable groove 51 except for the surface connected with the reflector 4, namely, the upper surface, the lower surface, the right surface, the front surface and the rear surface of the adjusting block 5 are provided with the movable groove 51, any one movable groove 51 is connected with a baffle groove 52, the movable groove 51 movably passes through the movable groove 6, the movable groove 51 provides a space for two-dimensional sliding of the movable rod 6 in the movable groove 51, the movable rod 6 extends out of the movable groove 51 along the opening direction of the movable groove 51, one end of the movable rod 6 extending into the baffle groove 52 is fixedly connected with a baffle 7, the baffle 7 is rotationally arranged in the baffle groove 52, the baffle 7 cannot leave the baffle groove 52 under the blocking of the inner wall of the movable groove 51, so that the movable rod 6 cannot leave the adjusting block 5, the position of the adjusting block 5 is adjusted by pulling the movable rod 6, for example, the movable rod 6 at the right end is pulled along the left and right direction, the adjusting block 5 slides along the left and right direction, the two lower sides of the adjusting block 5 slide along the upper direction, and the front direction of the adjusting block 5 is driven by the adjusting block 5 to slide along the lower direction, and the front direction of the adjusting block 4 is driven by the adjusting block 4;
the one end fixedly connected with threaded rod 8 that baffle 7 was kept away from to movable rod 6, except the threaded rod 8 that four movable rods 6 that are connected that are located the movable rod 6 of right-hand member, the threaded hole has been seted up to sample cell 1 right side wall, the threaded rod 8 of right-hand member passes the threaded hole, and threaded hole and the threaded rod 8 threaded connection of right-hand member, the equal outside threaded connection of one end that five threaded rods 8 stretched out sample cell 1 has lock nut 9, be provided with buffer spacer 19 between lock nut 9 and sample cell 1 outer wall, and threaded rod 8 activity passes buffer spacer 19, buffer spacer 19's setting slows down the wearing and tearing problem that produces because of mutual extrusion between lock nut 9 and sample cell 1 outer wall, threaded rod 8 drives reflector 4 motion through regulating block 5, adjust the position of reflector 4, make reflector 4 can be better with ultraviolet light reflection to optic fibre in, after the position adjustment of reflector 4, screw lock nut 9 is screwed in the one end that the threaded rod 8 stretched out sample cell 1, fix threaded rod 8, thereby fix the position of reflector 4, the concrete adjustment process is as follows:
the upper threaded rod 8 and the lower threaded rod 8 are pulled by sliding up and down, the adjusting block 5 drives the reflecting mirror 4 to slide up and down, the upper and lower positions of the reflecting mirror 4 are adjusted, after the upper and lower positions of the reflecting mirror 4 are adjusted, the upper and lower locking nuts 9 are screwed, the upper and lower positions of the adjusting block 5 are fixed, so that the upper and lower positions of the reflecting mirror 4 are fixed, the front and rear threaded rods 8 are pulled by sliding up and down in the same way, the adjusting block 5 drives the reflecting mirror 4 to slide up and down, the front and rear positions of the reflecting mirror 4 are adjusted, after the front and rear positions of the reflecting mirror 4 are adjusted, the front and rear locking nuts 9 are screwed, the front and rear positions of the adjusting block 5 are fixed, the left and right positions of the reflecting mirror 4 are fixed, the left and right positions of the adjusting block 5 are driven to slide left and right together by screwing the threaded rods 8 at right ends in the reverse direction, the left and right positions of the reflecting mirror 4 are adjusted, and the left and right positions of the adjusting block 4 are fixed by the locking nuts 9 after the front and rear positions of the reflecting mirror 4 are adjusted, and the left and right positions of the reflecting mirror 4 are adjusted, and the left and the right positions of the reflecting mirror 4 are fixed;
the four threaded rods 8 are internally provided with internal thread grooves along the axial direction of the threaded rods 8, a slide rod 10 is slidably arranged in any internal thread groove, the slide rod 10 slidably extends out of one end of the threaded rod 8 away from the adjusting block 5, the middle parts of the upper side, the lower side, the front side and the rear side of the back of the reflector 4 at the right end are fixedly connected with pull rope connecting seats 18 respectively, each pull rope connecting seat 18 is fixedly connected with one pull rope 11, the four pull ropes 11 are matched with the internal thread grooves in the four threaded rods 8 which extend into the upper side, the lower side, the front side and the rear side one by one and are movably connected with the slide rod 10, the slide rod 10 is pulled, so that the slide rod 10 slides in the threaded rod 8, the slide rod 10 drives the pull ropes 11 to move together, the reflector 4 is deflected, the inclination angle of the reflector 4 is roughly adjusted in a sliding manner of pulling the slide rod 10, the inclination angle of the reflector 4 can be quickly adjusted to be within a preset angle range, and the adjustment efficiency of the inclination angle of the reflector 4 is improved;
an inserted rod chute 101 is arranged in any sliding rod 10 along the axial direction of the sliding rod, an inserted rod 25 is arranged in any inserted rod chute 101 in a sliding way, the inserted rod 25 is extended out of one end of the sliding rod 10 far away from the adjusting block 5 in a sliding way, an inserted rod connecting plate 26 is fixedly connected with one end of the inserted rod 25 extending out of the sliding rod 10, an elastic sleeve 27 is fixedly connected between the inserted rod connecting plate 26 and the sliding rod 10, the inserted rod 25 slides through the elastic sleeve 27, the inserted rod 25 guides the elastic deformation process of the elastic sleeve 27, the stability of the elastic deformation process of the elastic sleeve 27 is improved, a through hole is arranged in the inserted rod 25, two clamping blocks 28 are extended out of the through hole in a sliding way, one end of each clamping block 28 extending into the through hole is fixedly connected through a clamping block elastic connecting rod 29, the inserted rod chute 101 is connected with a through groove for the clamping block 28 to slide and pass through, when the clamping blocks 28 are aligned with the through groove, the clamping block 28 passes through the through groove under the action of the clamping block elastic connecting rod 29 to realize the clamping and fixing between the sliding rod 10 and the inserted rod 25, when the sliding rod 10 and the inserted rod 25 are not required to be fixed, the clamping block 28 extending out of the through groove is only required to be manually extruded, so that the clamping block 28 is separated from the through groove, four threaded arc plates 30 are arranged on the outer side of the sliding rod 10 in a surrounding mode, the threaded arc plates 30 are fixedly connected with extrusion rods 31 extending into the inserted rod sliding grooves 101 in a sliding mode, the threaded arc plates 30 are fixedly connected with the sliding rod 10, arc plate elastic connecting rods 32 are fixedly connected between the threaded arc plates 30 and the sliding rod 10, when the arc plate elastic connecting rods 32 are not subjected to external force, the threaded arc plates 30 are stably supported by the elastic connecting rods 32, gaps exist between the threaded arc plates 30 and the inner walls of the internal thread grooves, external threads of the threaded arc plates 30 are not matched with the internal threads of the internal thread grooves, one ends of the inserted rod 25 extending into the inserted rod sliding grooves 101 are fixedly connected with extrusion heads 33 which are matched with the extrusion heads 33 for compressing the extrusion rods 31, the extrusion head 33 is tapered in a direction away from the plunger 25;
when the elastic sleeve 27 is not subjected to external pressure, the inserted link plate 26 drives the inserted link 25 to keep stable under the support of the elastic sleeve 27, at this time, the clamping blocks 28 are positioned between the through groove and the inserted link plate 26, the two clamping blocks 28 are blocked by the inner wall of the inserted link groove 101, the clamping block elastic link 29 is in a compressed state, the extrusion head 33 is positioned between the extrusion rod 31 and the inserted link 25, the extrusion head 33 does not press the extrusion rod 31, the threaded arc plate 30 keeps stable and has a gap with the inner wall of the internal thread groove, the sliding rod 10 slides in the internal thread groove, after the inclination angle of the reflecting mirror 4 is adjusted to be within the approximate range of a preset angle, the inserted link plate 26 slides along the direction close to the sliding rod 10, the inserted link plate 26 drives the inserted link 25 to slide towards the direction extending into the inserted link groove 101, the inserted link 25 drives the extrusion head 33 to slide together, the extrusion head 33 gradually presses the extrusion rod 31 in the sliding process, the extrusion rod 31 drives the threaded arc plate 30 to slide towards the direction close to the inner wall of the internal thread groove until the extrusion head 33 leaves the extrusion rod 31, one end of the extrusion rod 31 extending into the plunger chute 101 is extruded on the outer wall of the plunger 25, the extrusion rod 31 is kept stable under the extrusion of the outer wall of the plunger 25, the external thread of the threaded arc plate 30 is in threaded connection with the internal thread of the internal thread groove, the plunger connecting plate 26 continues to drive the plunger 25 to slide towards the direction extending into the plunger chute 101 until the clamping block 28 is aligned with the through groove, the clamping block 28 extends into the through groove under the elastic action of the clamping block elastic connecting rod 29, so that the sliding rod 10 and the plunger 25 are clamped and fixed, at the moment, the sliding rod 10 rotates together through the plunger 25 and the extrusion rod 31, the threaded arc plate 30 performs spiral movement in the internal thread groove under the threaded fit, so that the sliding rod 10 moves spirally in the internal thread groove, the sliding rod 10 drives the pull rope 11 to move together, the stay cord 11 pulls the reflector 4 to deflect, finely adjusts the inclination angle of the reflector 4, improves the adjustment precision of the inclination angle of the reflector 4, and after the adjustment is finished, utilizes the thread self-locking effect between the thread arc plate 30 and the internal thread groove to fix the slide bar 10, thereby locking the inclination angle of the reflector 4.
Embodiment two:
the second embodiment discloses a connection structure of the slide bar 10 and the pull rope 11 based on the first embodiment, namely: the slide bar 10 stretches into the one end internal rotation of internal thread groove and is provided with carousel 12, and carousel 12 fixedly connected with rotates the connection bull stick 13 that stretches out slide bar 10, and the one end fixedly connected with stay cord connecting plate 14 that connects bull stick 13 to stretch out slide bar 10, and the one end fixed connection that the stay cord 11 stretches into the internal thread groove is on stay cord connecting plate 14 for slide bar 10 only drives stay cord 11 through rotating the carousel 12 that sets up, and can not drive stay cord 11 rotation, avoids bringing adverse effect to the angle modulation of speculum 4.
Embodiment III:
the third embodiment discloses a connection structure of the reflecting mirror 4 and the adjusting block 5 on the basis of the first embodiment, namely: the inside gyro wheel sleeve 15 that sets up gyro wheel 16 that rotates of reflector 4 back fixedly connected with, and gyro wheel sleeve 15 is close to the one end of regulating block 5 and has seted up open slot 151, through the gyro wheel connecting rod 17 fixed connection who stretches out open slot 151 between gyro wheel 16 and the regulating block 5, gyro wheel sleeve 15 rotates for gyro wheel 16 under stay cord 11 effect for reflector 4 can rotate for regulating block 5, realizes the regulation to reflector 4 inclination.
Embodiment four:
the fourth embodiment specifically discloses an external connection structure of the sample cell 1 based on the first embodiment, namely: the outside of the light inlet 2 is communicated with a first optical fiber 20, ultraviolet light enters the sample cell 1 through the first optical fiber 20 and the light inlet 2, the outside of the light outlet 3 is communicated with a second optical fiber 21, the ultraviolet light leaves the sample cell 1 through the light outlet 3 and the second optical fiber 21, the sample cell 1 is provided with an air inlet 22 and an air outlet 23, gas to be detected enters the sample cell 1 through the air inlet 22, the detected gas leaves the sample cell 1 through the air outlet 23, one-way valves 24 are arranged in the air inlet 22 and the air outlet 23, the gas to be detected can only flow along the direction entering the sample cell 1, the one-way valve 24 at the air outlet 23 can only flow along the direction exiting the sample cell 1, the one-way valve 24 at the air inlet 22 is opened in the air inlet stage, the gas to be detected is closed after the air inlet is ended, the gas is discharged through the one-way valve 24 at the air outlet 23 is opened in the air outlet stage, and the one-way valve 24 is closed after the air discharge is ended.
An optical signal receiving device is provided with the sample cell for receiving optical signals, ultraviolet light enters the optical signal receiving device through the second optical fiber 21 and is transmitted to an ultraviolet optical fiber spectrometer after being processed by the optical signal receiving device.
Working principle: the upper threaded rod 8 and the lower threaded rod 8 are pulled in a vertical sliding mode, the adjusting block 5 drives the reflecting mirror 4 to slide up and down together, the upper position and the lower position of the reflecting mirror 4 are adjusted, the upper locking nut 9 and the lower locking nut 9 are screwed, the upper position and the lower position of the reflecting mirror 4 are fixed, the front threaded rod 8 and the rear threaded rod 8 are pulled in a front-back sliding mode, the adjusting block 5 drives the reflecting mirror 4 to slide back and forth together, the front position and the rear position of the reflecting mirror 4 are adjusted, the front locking nut 9 and the rear locking nut 9 are screwed, the front position and the rear position of the reflecting mirror 4 are fixed, the threaded rod 8 at the right end is screwed in the forward direction and the reverse direction, the adjusting block 5 drives the reflecting mirror 4 to slide left and right together, the left position and right position of the reflecting mirror 4 are adjusted, the locking nut 9 at the right end is screwed, and the left position and right position of the reflecting mirror 4 are fixed by utilizing the self-locking effect of threads between the threaded holes and the threaded rods 8 and the reinforcing effect of the locking nuts 9;
the sliding rod 10 slides in the threaded rod 8, the sliding rod 10 drives the pull rope 11 to move together, the pull rope 11 pulls the reflector 4 to deflect, the inclination angle of the reflector 4 is roughly adjusted, the inserting rod connecting plate 26 slides along the direction close to the sliding rod 10, the inserting rod connecting plate 26 drives the extrusion head 33 to slide together through the inserting rod 25, the extrusion head 33 gradually presses the extrusion rod 31 in the sliding process, the extrusion rod 31 drives the threaded arc plate 30 to slide towards the direction close to the inner wall of the inner thread groove until the extrusion head 33 leaves the extrusion rod 31, one end of the extrusion rod 31 stretching into the inserting rod chute 101 is extruded on the outer wall of the inserting rod 25, the inserting rod connecting plate 26 continues to drive the inserting rod 25 to slide until the clamping block 28 aligns with the through groove under the elastic action of the clamping block elastic connecting rod 29, the sliding rod 10 is clamped and fixed between the inserting rod 25, the sliding rod 10 rotates the sliding rod 10, the extrusion rod 31 drives the threaded arc plate 30 to rotate together, the threaded arc plate 30 performs spiral motion in the inner thread groove under the threaded fit, the sliding rod 10 moves in the inner thread groove until the sliding rod 10 moves away from the extrusion rod 33, one end of the extrusion rod 31 stretches into the inserting rod 101 to press the outer wall of the inserting rod 25, the reflecting mirror 11 continuously slides along the through the elastic action of the clamping block elastic connecting rod 29, the clamping block 28 stretches the through groove, the clamping block is clamped between the sliding rod 25, the reflecting mirror 4 is inclined along the reflecting mirror 4, and the inclination angle is adjusted accordingly, and the reflecting mirror 4 is tightly, and the inclination angle is adjusted, and the reflecting mirror, and accordingly, and the reflecting mirror.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A sample cell for optical signal reception, includes sample cell (1) that light inlet (2), light outlet (3) were seted up to one end interval, and is provided with speculum (4), its characterized in that in sample cell (1): the back of the reflector (4) is rotationally connected with an adjusting block (5), the adjusting block (5) is provided with a movable groove (51) except for the surface connected with the reflector (4), the movable groove (51) is connected with a baffle groove (52), a movable rod (6) is movably penetrated in the movable groove (51), and one end of the movable rod (6) extending into the baffle groove (52) is fixedly connected with a baffle (7);
one end of the movable rod (6) far away from the baffle (7) is fixedly connected with a threaded rod (8), the threaded rod (8) is slidably extended out of the sample tank (1), one end of the threaded rod (8) extending out of the sample tank (1) is externally connected with a locking nut (9) in a threaded manner, an internal thread groove with a sliding rod (10) is formed in the threaded rod (8) in an axial direction in a sliding manner, the sliding rod (10) is slidably extended out of one end of the threaded rod (8) far away from the regulating block (5), the back of the reflector (4) is fixedly connected with a pull rope (11), and the pull rope (11) is movably extended into the internal thread groove and is movably connected onto the sliding rod (10);
the utility model discloses a compression device for a compression device, including slide bar (10), slide bar (25), inserted bar spout (101) of inside slip setting inserted bar (25) has been seted up along its axial in, and inserted bar (25) slip stretches out the one end that regulating block (5) was kept away from to slide bar (10), one end fixedly connected with inserted bar link plate (26) that inserted bar (25) stretched out slide bar (10), and fixedly connected with elastic sleeve (27) between inserted bar link plate (26) and slide bar (10), it has two fixture blocks (28) to slide in inserted bar (25), and fixedly connected with fixture block elastic connecting rod (29) between two fixture blocks (28), and inserted bar spout (101) are connected with the logical groove that supplies fixture block (28) to slide, the outside of slide bar (10) is equipped with a plurality of screw thread arc plates (30), and screw thread arc plates (30) fixedly connected with slip stretches into extrusion rod (31) of inserted bar spout (101), and screw arc plate elastic connecting rod (32) between screw arc plates (30) and slide bar (10), inserted bar (25) fixedly connected with oppression extrusion head (33) of cooperation extrusion rod (31).
2. The cuvette for optical signal reception according to claim 1, characterized in that: the baffle (7) is rotatably arranged in the baffle groove (52).
3. The cuvette for optical signal reception according to claim 2, characterized in that: threaded holes are formed in the side wall of the sample cell (1) through which the threaded rod (8) far away from the reflector (4) passes, and the threaded holes are in threaded connection with the threaded rod (8).
4. The cuvette for optical signal reception according to claim 1, characterized in that: the four threaded rods (8) close to the reflector (4) are internally provided with internal thread grooves with sliding rods (10), and the pull ropes (11) extend into the internal thread grooves and are movably connected with the sliding rods (10).
5. The cuvette for optical signal reception according to claim 1, characterized in that: the one end internal rotation that slide bar (10) stretched into the internal thread groove is provided with carousel (12), and carousel (12) fixedly connected with rotates and stretches out connecting bull stick (13) of slide bar (10), connecting bull stick (13) stretch out one end fixedly connected with stay cord connecting plate (14) of slide bar (10), and one end fixed connection that stay cord (11) stretched into the internal thread groove is on stay cord connecting plate (14).
6. The cuvette for optical signal reception according to claim 1, characterized in that: the back of the reflector (4) is fixedly connected with a roller sleeve (15) of which the inside is rotationally provided with a roller (16), an open slot (151) is formed in one end, close to the adjusting block (5), of the roller sleeve (15), and the roller (16) is fixedly connected with the adjusting block (5) through a roller connecting rod (17) which movably extends out of the open slot (151).
7. The cuvette for optical signal reception according to claim 1, characterized in that: the outside of the light inlet (2) is communicated with a first optical fiber (20), and the outside of the light outlet (3) is communicated with a second optical fiber (21).
8. The cuvette for optical signal reception according to claim 1, characterized in that: the sample cell (1) is provided with an air inlet (22) and an air outlet (23), and check valves (24) are arranged in the air inlet (22) and the air outlet (23).
9. The cuvette for optical signal reception according to claim 1, characterized in that: the two ends inside the sample cell (1) are respectively provided with a reflecting mirror (4), the reflecting surfaces of the two reflecting mirrors (4) are opposite, and the back surface of the reflecting mirror (4) far away from the light inlet (2) is rotationally connected with an adjusting block (5).
10. An optical signal receiving apparatus, characterized in that: the optical signal receiving device is provided with a sample cell for optical signal reception as claimed in any one of the preceding claims 1-9.
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