CN115560851B - Automatic slit-changing device for spectrum instrument capable of spatial filtering - Google Patents
Automatic slit-changing device for spectrum instrument capable of spatial filtering Download PDFInfo
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- CN115560851B CN115560851B CN202211156497.7A CN202211156497A CN115560851B CN 115560851 B CN115560851 B CN 115560851B CN 202211156497 A CN202211156497 A CN 202211156497A CN 115560851 B CN115560851 B CN 115560851B
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- 238000001914 filtration Methods 0.000 title claims abstract description 11
- 238000001228 spectrum Methods 0.000 title description 2
- 230000006835 compression Effects 0.000 claims description 52
- 238000007906 compression Methods 0.000 claims description 52
- 239000010985 leather Substances 0.000 claims description 34
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 238000003384 imaging method Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/04—Slit arrangements slit adjustment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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Abstract
The invention relates to the technical field of spectrometers, and discloses an automatic slit-changing device for a spatial filtering spectrometer, which comprises fixing frames, wherein the top end and the bottom end between the two fixing frames are respectively and fixedly connected with sliding ways, sliding grooves are formed between the two sliding ways, the sliding ways are slidably connected with two slit plates through the sliding grooves, the middle part of each sliding groove is provided with a fixed groove, the top end and the bottom end of the inner side of each slit plate are respectively and transversely equidistantly fixedly connected with a fixed shaft, and the outer side of each fixed shaft is slidably connected with a movable column. The fixed gear is connected with the inner side of the slit plate, the movable plate is pushed by the outer side of the fixed gear to rotate while the fixed gear is driven by the motor, the movable plate pushes the movable column to rotate, the movable column at the top bottom end of the slit plate rotates while the movable column moves transversely through the movable plate, the same transverse moving length of the top bottom end of the slit plate is further ensured, the side surfaces of the two slit plates close to each other are parallel, and a parallel light source with good coherence is obtained.
Description
Technical Field
The invention relates to the technical field of spectrometers, in particular to an automatic slit-changing device for a spectrometer capable of spatial filtering.
Background
The spectrometer is an instrument for detecting the content of an element to be detected in a sample through a dispersion principle, and consists of an incident slit, a dispersion system, an imaging system and one or more emergent slits, wherein in the working process, a parallel light source with better coherence can be obtained by adjusting the width of the incident slit, and the resolution of the spectrometer is ensured.
When the spectrometer adjusts the entrance slit, the width of the slit is enlarged or reduced by synchronously adjusting the transverse movement of the two entrance slit plates, and when the transverse movement distances of the upper end and the lower end of the slit plates are not synchronous in the adjusting process, the upper width and the lower width of the slit are inconsistent, so that the imaging of a light source is not clear, and the final result is influenced; and after the spectrometer is used, the two slit plates can be mutually closed, when dust is positioned on the side face of the image air plate, the side faces of the two slit plates can be mutually close to squeeze the dust, so that the side faces of the slit plates are worn and curled due to extrusion, the amount of the dust entering in the subsequent use is large, and the imaging of the spectrometer is influenced by the dust and is unstable.
Disclosure of Invention
Aiming at the defects of the prior spectrometer in the use process, the invention provides an automatic slit changing device for a spatial filtering spectrometer, which has the advantages of always parallel slit plate adjustment and slit plate protection, and solves the technical problems of unparallel slit plate adjustment and abrasion and dust collection at the joint when the slit plate is closed.
The invention provides the following technical scheme: the utility model provides a but space filtering's spectral instrument is with automatic slit device, includes the mount, two top and bottom fixedly connected with slide respectively between the mount, two the spout has been seted up between the slide, and the slide passes through two slit plates of spout sliding connection, the fixed slot has been seted up at the middle part of spout, the inboard top and the bottom of slit plate are horizontal equidistance fixedly connected with fixed axle respectively, the outside sliding connection of fixed axle has the movable post, and the part of movable post outside the slit plate is located the inboard of fixed slot, the circumference equiangular distribution of movable post has the fly leaf, and sliding connection between the outside of fly leaf and the movable post, the slide is close to the outside of fly leaf seted up with the recess of fly leaf looks adaptation, and the recess can promote the fly leaf to the inboard removal of movable post, the inboard sliding connection of slit plate has two engaged with fixed gears, and the fixed gear is double-deck gear, one deck gear of fixed gear is located the inboard of slit plate and the inside of movable post and the meshing of fixed gear, and the other deck gear is located the outside of board and motor slit pole meshing.
Preferably, the inside swing joint of movable column has fixed gasbag, and the inboard of fixed gasbag communicates with the middle part of fixed axle, every the inboard fixedly connected with of slit board is close to the inflatable bladder of another slit board, fixed gasbag passes through fixed axle and one-way breather pipe and the inboard fixed intercommunication of inflatable bladder, and the air current gets into the inboard of inflatable bladder from fixed gasbag, two face that is close to between the slit board is swing joint respectively has the compression gasbag, the outside of compression gasbag runs through the inner wall of slit board and the inboard fixed connection of slit board, the outside fixed intercommunication of inflatable bladder has communicating pipe, the inflatable bladder has the compression gasbag through communicating pipe intercommunication, the outside fixedly connected with leather strap of the axis that fixed gear is located the slit board, the one end that the fixed gear was kept away from to the leather strap and the outside fixed connection of compression gasbag, the circumference of compression gasbag towards slit board surface is all fixedly distributed with the relief valve.
Preferably, the movable plate is tooth-block-shaped, and the surface of the movable plate, which is close to the fixed shaft, is fixedly connected with the outer side of the fixed air bag.
Preferably, the fixed air bag is an air bag with elasticity tending to an expansion state, the shape of the fixed air bag is circular, the outer side of the fixed air bag is fixedly connected with a one-way ventilation valve, and air flow enters the inner side of the fixed air bag through the outer side of the fixed air bag.
Preferably, when the compression airbag is in a fully expanded state, the outer side of the compression airbag protrudes out of the side surface close to the two slit plates, the side surface shape of the compression airbag is the same as the side surface shape of the slit plates, and the compression airbag balances the inner air pressure through the pressure relief valve and maintains the shape of the compression airbag.
Preferably, the leather strap is wound in a rotation mode that the outer side of the fixed gear follows, when the fixed gear rotates to move the slit plates to move in the direction between the two slit plates, the fixed gear releases the leather strap, and when the fixed gear completely releases the leather strap, the communicating pipeline is communicated, the compression air bag is inflated, when the fixed gear rotates to move the two slit plates to move in the direction away from each other, the fixed gear instantaneously winds the leather strap, the compression air bag is contracted, and the communicating pipeline is closed by extrusion.
The invention has the following beneficial effects:
1. according to the invention, the fixed gear is driven by the motor to rotate, the movable plate is pushed by the outer side of the fixed gear to push the movable column to rotate, the movable column at the top end of the slit plate rotates and simultaneously moves transversely through the movable plate, so that the slit plate moves transversely between the upper slide way and the lower slide way, the slit between the two slit plates is opened, the movable columns arranged up and down on the inner side of the slit plate are respectively controlled by the mutual meshing of the two fixed gears, the rotation conditions of the upper and lower movable columns are identical, the transverse rotation movement length of the movable columns is unified, the transverse movement length of the top end of the slit plate is identical, the side surfaces of the two slit plates close to each other are parallel to each other, a parallel light source with good coherence is obtained, and the imaging definition is improved.
2. According to the invention, the compressed air bags are arranged between the two slit plates, the fixed gear winds the leather strips in the process of opening the slit plates to image the slit, so that the leather strips pull the compressed air bags to compress and retract the compressed air bags to the inner sides of the slit plates, and when the slit is used and closed, the fixed gear rotates to adjust the two slit plates to close the slit, and simultaneously, the fixed gear releases the leather strips wound on the outer sides, so that the leather strips are completely released to instantly open the communication pipeline, the compressed air bags are instantly expanded, the interaction force between the two slit plates is resisted by the action force of mutual extrusion after the two compressed air bags are expanded, the interaction force between the slit plates is further reduced, the abrasion loss of the contact surface between the slit plates is reduced, the slit plates are protected, and the imaging quality is improved.
3. According to the invention, the pressure release valve connected with the outer sides of the compression air bags is utilized, when the two slit plates are closed after being used, the two compression air bags are mutually extruded under the action of air pressure at the inner sides, the air pressure at the inner sides of the compression air bags can enable the pressure release valve to blow air at the inner sides of the compression air bags outwards, and then the pressure release valve is utilized to blow and clean the slit plates to the two sides, namely the side surfaces of the slit plates, so that the slit plates are cleaned by blowing, and after the slit plates are used, leather strips are wound on the outer sides of the fixed gears at the moment that the two slit plates are started to be used and opened, the leather strips pull the compression air bags to compress, and then the air of the compression air bags is blown out through the pressure release valve again, so that the slit plates are cleaned before and after being used, the adhesion of dust on the slit surfaces at the outer sides of the slit plates is reduced, and the service life of the slit plates is prolonged.
Drawings
FIG. 1 is a schematic view of the slit plate structure of the present invention in a closed state;
FIG. 2 is a schematic view showing the connection state of the slit plate structure of the present invention inside the slideway structure;
FIG. 3 is a schematic cross-sectional front view of a slit plate structure of the present invention;
FIG. 4 is a schematic cut-away view of a slit plate structure of the present invention.
In the figure: 1. a fixing frame; 2. a slideway; 3. a chute; 4. slit plates; 5. a fixing groove; 6. a fixed shaft; 7. a movable column; 8. a movable plate; 9. a fixed gear; 10. fixing the air bag; 11. an inflatable airbag; 12. compressing the air bag; 13. a communication pipe; 14. leather strips; 15. and a pressure release valve.
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, an automatic slit-changing device for a spectral instrument capable of spatial filtering comprises a fixed frame 1, wherein the top end and the bottom end between the two fixed frames 1 are respectively and fixedly connected with a slide way 2, the two fixed frames 1 and the two slide ways 2 form a rectangular frame, referring to fig. 2, a slide way 3 is arranged between the two slide ways 2, the slide way 2 is connected with two slit plates 4 in a sliding way through the slide way 3, the two slit plates 4 in the prior art are mutually close to each other to form an inclined plane, the slit is controlled through the inclined plane, the middle part of the slide way 3 is provided with a fixed groove 5, referring to fig. 3, the top end and the bottom end at the inner side of the slit plate 4 are respectively and transversely equidistantly fixedly connected with a fixed shaft 6, the fixed shaft 6 and the slit plate 4 are movably sealed through bearings, the outer side of the fixed shaft 6 is in sliding connection with a movable column 7, the part of the movable column 7 at the outer side of the slit plate 4 is positioned at the inner side of the fixed groove 5, the movable column 7 is in a cylinder shape, the circumference of the movable column 7 is distributed with a movable plate 8, the outer side of the movable plate 8 is in sliding connection with the movable column 7, the movable column 2 is close to the outer side of the movable plate 8, a groove is arranged at the outer side of the movable column 8, the movable column 8 is matched with the slit 9, the slit 9 is meshed with the side of the slit 9 of the movable column 4, the side is meshed with the side 9, the side of the fixed with the side of the movable column 4 is meshed with the slit 4, the side is positioned at the side 9, and the side of the side is meshed with the side of the fixed gear 4 is the slit 4 is the side 4, and the portion of the fixed gear 9 located outside the slit plate 4 is at the front position of the slit plate 4.
Referring to fig. 3, a fixed airbag 10 is movably connected to the inner side of the movable column 7, the inner side of the fixed airbag 10 is communicated with the middle part of the fixed shaft 6, an inflatable airbag 11 close to the other slit plate 4 is fixedly connected to the inner side of each slit plate 4, the inflatable airbag 11 is an elastic airbag, the inflatable airbag 11 elastically maintains a rectangular state with constant internal air pressure, the fixed airbag 10 is fixedly communicated with the inner side of the inflatable airbag 11 through the fixed shaft 6 and a one-way vent pipe, air flows from the fixed airbag 10 to the inner side of the inflatable airbag 11, the surfaces close to the two slit plates 4 are respectively and movably connected with a compression airbag 12, the outer side of the compression airbag 12 penetrates through the inner wall of the slit plate 4 and is fixedly connected with the inner side of the slit plate 4, referring to fig. 4, a communicating pipe 13 is fixedly communicated with the outer side of the inflatable airbag 11 through the communicating pipe 13, one-way vent pipe 14 is fixedly connected with the outer side of the central shaft of the slit plate 4, one end of the leather strap 14 far from the fixed gear 9 is fixedly connected with the outer side of the compression airbag 12, the compression airbag 12 is fixedly distributed with a pressure release valve 15 towards the circumferential direction of the surface of the slit plate 4, and the pressure release valve 14 is more close to the inner side of the air bag 12, namely the pressure release valve is released from the inner side of the compression airbag 12.
Referring to fig. 1 and 3, the movable plate 8 is in a tooth block shape, the surface of the movable plate 8 close to the fixed shaft 6 is fixedly connected with the outer side of the fixed air bag 10, the movable plate 8 is pushed to the inner side of the movable column 7 by the groove at the inner side of the fixed groove 5 to squeeze the fixed air bag 10 while rotating along with the movable column 7 through the matching of the shape of the movable plate 8 and the groove at the inner side of the fixed groove 5, then the slit plate 4 transversely slides between the two slide ways 2 through the rotation of the movable column 7, the slit width between the two slit plates 4 is adjusted, and then the fixed gear 9 connected with the slit plate 4 is driven by a motor to rotate, so that the fixed gear 9 pushes the movable plate 8 through the outer tooth block, the movable plate 8 is pushed to rotate around the movable column 7, and then the movable column 7 at the top bottom end of the slit plate 4 synchronously rotates, so that the slit plate 4 is always in a vertical state, the top end and the bottom end of the slit plate 4 synchronously transversely move between the two slide ways 2, and the slit plate 4 is always parallel during adjustment, and the light source parallelism is ensured, and the imaging accuracy is improved.
Referring to fig. 3, the fixed airbag 10 is an airbag with elasticity tending to an inflated state, the fixed airbag 10 is in a circular shape, the outside of the fixed airbag 10 is fixedly connected with a one-way ventilation valve, air flows into the inside of the fixed airbag 10 through the outside of the fixed airbag 10, and goes to an inflated state through the fixed airbag 10, when the fixed airbag 10 is pressed by the movable plate 8, air in the inside of the fixed airbag 10 enters the inside of the inflated airbag 11 through the fixed shaft 6 and the one-way ventilation pipe, and when the movable plate 8 releases the fixed airbag 10, the fixed airbag 10 is inflated again to suck outside air, so that the fixed airbag 10 is pressed again by the next movable plate 8, the air can continuously enter the inside of the inflated airbag 11 to act, and the extrusion process of the movable plate 8 is stabilized by the elastic action of the fixed airbag 10, so that the lateral movement of the slit plate 4 is stabilized.
Referring to fig. 1, 3-4, when the compression airbag 12 is in a fully expanded state, the outer side of the compression airbag 12 protrudes from the side surface close to the two slit plates 4, the side surface shape of the compression airbag 12 is the same as the side surface shape of the slit plates 4, the compression airbag 12 balances the inner air pressure through the pressure release valve 15 and keeps the shape of the compression airbag 12, so that the air pressure interaction force is always generated between the compression airbags 12, the slit plates 4 simultaneously close the slits, the interaction force between the slit plates 4 is reduced, the closing abrasion between the slit plates 4 is reduced, when the slit plates 4 open the slits, the fixed gear 9 rotates to wind the leather strips 14, so that the compression airbag 12 is pulled by the leather strips 14 to compress and close the communication pipeline 13, after the compression airbag 12 is compressed, the pressure release valve 15 is released outwards due to the increase of the inner side of the compression airbag 12, the decompression valve 15 is blown to the slit side surface of the slit plate 4, the slit side surface of the slit plate 4 is cleaned before the slit plate 4 is used, when the slit plate 4 is used, the two slit plates 4 are driven by the fixed gear 9 to approach each other, the wound leather strips 14 are released from the outer sides of the fixed gear 9 to communicate the communicating pipe 13, the compressed air bags 12 are inflated by the air introduced by the inflatable air bags 11, the compressed air bags 12 are inflated, the air pressure inside the compressed air bags 12 is increased again due to the mutual extrusion between the two compressed air bags 12, and then the air inside the compressed air bags 12 is released again through the decompression valve 15, so that the decompression valve 15 blows air to the slit side surface of the slit plate 4, the slit plate 4 is cleaned after the use is completed, the service life of the slit plate 4 is prolonged, and the imaging quality of the next use is ensured.
Referring to fig. 4, when the leather strip 14 is wound around the outside of the fixed gear 9 in a following manner, the fixed gear 9 rotates to move the slit plates 4 to move in the direction between the two slit plates 4, the fixed gear 9 releases the leather strip 14, and the fixed gear 9 completely releases the leather strip 14, the communicating pipe 13 is communicated, the compressed air bag 12 is inflated, when the fixed gear 9 rotates to move the two slit plates 4 to move in the direction away from each other, the fixed gear 9 instantaneously winds the leather strip 14, the compressed air bag 12 is contracted, the communicating pipe 13 is closed, namely, the communicating pipe 13 is closed at the moment that the leather strip 14 is wound by the fixed gear 9, the communicating pipe 13 is communicated at the moment that the leather strip 14 is safely released by the fixed gear 9, so as to control the communicating time between the compressed air bag 12 and the inflated air bag 11, the moment that the two slit plates 4 are close to each other, the communicating pipe 13 is communicated, the extrusion force born between the compressed air bag 12 is reduced by the extrusion force of the mutually extruded air bag 12 between the instantaneously inflated compressed air bag 12, the extrusion force born between the two slit plates 4 is reduced, the extrusion force between the slit plates 4 is reduced, and the slit plates 4 are compressed, and the slit 4 is opened at the moment that the slit plates 4 are opened, the slit plates 14 are compressed and the slit 12 are pulled back to the air bag 12 is compressed, and the slit 4 is not influenced, and the slit 4 is compressed.
The working principle of the using method of the invention is as follows:
when the slit is regulated, the fixed gears 9 are driven by a motor to rotate simultaneously, the fixed gears 9 drive the other fixed gear 9 and the movable plate 8 which are meshed from the outer side, the movable plate 8 drives the movable column 7 to rotate, the movable plate 8 which is close to the inner side of the fixed groove 5 is driven to press the fixed air bag 10 towards the inner side of the movable column 7, air at the inner side of the fixed air bag 10 enters the inner side of the inflatable air bag 11 through the fixed shaft 6 and the one-way vent pipe, the air pressure at the inner side of the inflatable air bag 11 is increased, the top end and the bottom end of the slit plate 4 synchronously move to the two sides due to the rotation of the movable column 7, further, the slit is formed between the two slit plates 4, the outer side of the fixed gears 9 can wind the leather strips 14 when the fixed gears 9 rotate to drive the slit plates 4 to move to the two sides, one end of the leather strips 14 close to the compressed air bag 12 can pull the compressed air bag 12, the compression air bag 12 is compressed and retracted to the inner side of the slit plate 4, the air in the compression air bag 12 is blown out to the inclined plane of the slit plate 4 through the pressure release valve 15, the surface forming the slit position is cleaned, the imaging quality is ensured, the compression air bag 12 is pulled and compressed by the leather strips 14, the communication pipeline 13 is extruded and closed, the air in the fixed air bag 10 is only stored in the inflatable air bag 11, after the adjustment is completed, the detection and the use of the whole spectrometer are carried out, when the slit width expansion adjustment is carried out again, the steps are repeated, and when the slit width reduction adjustment is carried out again, the fixed gear 9 is driven by the motor to rotate in the opposite direction, the leather strips 14 are released from the outer side of the fixed gear 9, at the moment, the communication pipeline 13 is kept in a closed state, namely the compression air bag 12 is kept in a contracted state, the movable plate 8 is sequentially compressed and released by the movable column 7 which rotates, the gas inside the fixed airbag 10 is continuously inflated inside the inflatable airbag 11, and after the slit width between the two slit plates 4 is adjusted, the detection process of the spectrometer is continued.
After the spectrometer is used, the closing process between the two slit plates 4 is carried out, the fixed gear 9 is regulated to rotate towards the approaching direction between the two slit plates 4, the fixed gear 9 drives the other fixed gear 9 to rotate, the movable column 7 at the top and bottom ends of the two slit plates 4 rotates, the movable column 7 rotates to enable the fixed air bag 10 to charge air into the inner side of the inflatable air bag 11, when the two slit plates 4 are close, the fixed gear 9 can rotate to instantly and completely release the leather strips 14, the communicating pipeline 13 is opened, the compression air bags 12 are instantly expanded, the two compression air bags 12 are mutually close to resist the mutual extrusion force between the two slit plates 4, meanwhile, after the two compression air bags 12 are mutually extruded, air is blown out through the pressure relief valve 15 to relieve pressure, and the air blown out by the pressure relief valve 15 is blown to the slit side surfaces of the slit plates 4 to control the cleaning process of the slit side surfaces, so that the imaging quality is ensured.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (4)
1. The utility model provides a but space filtering's spectral instrumentation is with automatic slit device, includes mount (1), its characterized in that: the top and the bottom between the two fixing frames (1) are fixedly connected with slide ways (2) respectively, a slide way (3) is arranged between the two slide ways (2), the slide ways (2) are connected with two slit plates (4) in a sliding way through the slide ways (3), a fixed groove (5) is arranged in the middle of the slide ways (3), a fixed shaft (6) is fixedly connected with the top and the bottom of the inner side of the slit plates (4) at equal distances respectively, a movable column (7) is connected with the outer side of the fixed shaft (6) in a sliding way, the part of the movable column (7) on the outer side of the slit plates (4) is positioned on the inner side of the fixed groove (5), a movable plate (8) is distributed on the circumference of the movable column (7) at equal angles, the outer side of the movable plate (8) is connected with the movable column (7) in a sliding way, a groove matched with the movable plate (8) is arranged on the outer side of the slide ways (2), the movable plate (8) is pushed to move towards the inner side of the movable column (7), two double-layer slit gears (9) are connected with the inner side of the movable column (4), the double-layer gears (9) are meshed with the fixed gears (9) and meshed with the fixed gears (9) on the inner side of the double-layer (4), the other layer of gear of the fixed gear (9) is positioned at the outer side of the slit plate (4) and meshed with the turbine rod of the motor;
the inner side of the movable column (7) is movably connected with a fixed airbag (10), the inner side of the fixed airbag (10) is communicated with the middle part of the fixed shaft (6), the inner side of each slit plate (4) is fixedly connected with an inflatable airbag (11) close to the other slit plate (4), the fixed airbag (10) is fixedly communicated with the inner side of the inflatable airbag (11) through the fixed shaft (6) and a one-way vent pipe, air flow enters the inner side of the inflatable airbag (11) from the fixed airbag (10), the surfaces close to each slit plate (4) are respectively and movably connected with a compression airbag (12), the outer side of the compression airbag (12) penetrates through the inner wall of the slit plate (4) and the inner side of the slit plate (4), the outer side of the inflatable airbag (11) is fixedly communicated with a communicating pipe (13), the outer side of the central shaft of the fixed gear (9) positioned in the slit plate (4) is fixedly connected with a leather strip (14), one end of the leather strip (14) is far away from the outer side of the fixed gear (9) and is fixedly connected with a compression valve (15) of the compression airbag (4), and the compression valve (12) is fixedly connected with the circumferential surface of the compression airbag (4);
the movable plate (8) is tooth-shaped, and the surface of the movable plate (8) close to the fixed shaft (6) is fixedly connected with the outer side of the fixed air bag (10).
2. An automatic narrowing slit device for a spectroscopic instrument capable of spatial filtering according to claim 1, wherein: the fixed airbag (10) is an airbag with elasticity tending to an expansion state, the shape of the fixed airbag (10) is annular, a one-way ventilation valve is fixedly connected to the outer side of the fixed airbag (10), and air flow enters the inner side of the fixed airbag (10) through the outer side of the fixed airbag (10).
3. An automatic narrowing slit device for a spectroscopic instrument capable of spatial filtering according to claim 1, wherein: when the compression air bag (12) is in a fully expanded state, the outer side of the compression air bag (12) protrudes out of the side surface close to the two slit plates (4), the side surface shape of the compression air bag (12) is the same as the side surface shape of the slit plates (4), and the compression air bag (12) balances the inner air pressure through the pressure relief valve (15) and keeps the shape of the compression air bag (12).
4. An automatic narrowing slit device for a spectroscopic instrument capable of spatial filtering according to claim 1, wherein: the leather strip (14) is wound in a rotation mode that the outer side of the fixed gear (9) is followed, when the fixed gear (9) rotates to move the slit plates (4) to move in the direction between the two slit plates (4), the fixed gear (9) releases the leather strip (14), and when the fixed gear (9) completely releases the leather strip (14), the communicating pipeline (13) is communicated, the compression air bag (12) is inflated, when the fixed gear (9) rotates to move the two slit plates (4) to move in the direction away from each other, the fixed gear (9) instantaneously winds the leather strip (14), the compression air bag (12) is contracted, and the communicating pipeline (13) is closed in an extrusion mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211156497.7A CN115560851B (en) | 2022-09-22 | 2022-09-22 | Automatic slit-changing device for spectrum instrument capable of spatial filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211156497.7A CN115560851B (en) | 2022-09-22 | 2022-09-22 | Automatic slit-changing device for spectrum instrument capable of spatial filtering |
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| Publication Number | Publication Date |
|---|---|
| CN115560851A CN115560851A (en) | 2023-01-03 |
| CN115560851B true CN115560851B (en) | 2023-05-23 |
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| CN202211156497.7A Active CN115560851B (en) | 2022-09-22 | 2022-09-22 | Automatic slit-changing device for spectrum instrument capable of spatial filtering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19910942A1 (en) * | 1999-03-12 | 2000-09-14 | Zeiss Carl Jena Gmbh | Variable optical gap producer uses guide tracks on guide rails expanding freely from clamped setting for parallel adjustment of gap jaws assisted by gap adjuster and springs. |
| JP2006049677A (en) * | 2004-08-06 | 2006-02-16 | Nikon Corp | Variable slit arrangement, illumination device, aligner, and manufacturing method of device |
| CN102141507B (en) * | 2010-01-29 | 2012-08-08 | 北京普析通用仪器有限责任公司 | Installation debugging method of continuously variable slit mechanism |
| CN106404172A (en) * | 2016-11-21 | 2017-02-15 | 天津市拓普仪器有限公司 | Parallel linkage displacement slit mechanism for spectrophotometer |
| CN206847781U (en) * | 2017-05-16 | 2018-01-05 | 中国电子科技集团公司第四十一研究所 | A kind of slit plate, double variable gap devices using the slit plate |
| CN110285883B (en) * | 2019-06-27 | 2020-09-01 | 中国科学院西安光学精密机械研究所 | Rotatable electric slit |
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2022
- 2022-09-22 CN CN202211156497.7A patent/CN115560851B/en active Active
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| CN115560851A (en) | 2023-01-03 |
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