CN214252019U

CN214252019U - Novel optical fiber fixing frame of fluorescence spectrometer

Info

Publication number: CN214252019U
Application number: CN202120192696.8U
Authority: CN
Inventors: 崔香; 吴奕璇
Original assignee: Qinghai Normal University
Current assignee: Qinghai Normal University
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-09-21
Anticipated expiration: 2031-01-22

Abstract

The utility model belongs to the technical field of the fixed bolster, and a novel fluorescence spectrum appearance optic fibre mount is disclosed, the on-line screen storage device comprises a base, the U-shaped piece, first slider, the slide cartridge, first slide bar, first lead screw, arouse optic fibre, launch optic fibre, the second lead screw, the second slider and place the frame, the U-shaped piece is located the base top, be fixed with the pneumatic cylinder between U-shaped piece and the base, slide cartridge and the first slide bar sliding fit that corresponds, two first sliders respectively with first lead screw threaded connection, first slider upper surface one side is rotated through the pivot and is connected with the extrusion piece, first slider and the extrusion piece that corresponds all seted up the draw-in groove through fix with screw and first slider and this extrusion piece laminating department, arouse optic fibre and launch optic fibre and be located the draw-in groove of two sets of differences respectively. The utility model discloses a setting of U-shaped piece, pneumatic cylinder, first lead screw, first slider, second lead screw and second slider for this device can be adjusted optic fibre and the distance between the object that awaits measuring and two optic fibres.

Description

Novel optical fiber fixing frame of fluorescence spectrometer

Technical Field

The utility model belongs to the technical field of the fixed bolster, specifically a novel fluorescence spectrum appearance optic fibre mount.

Background

Molecular fluorescence spectroscopy, also known as molecular luminescence spectroscopy or spectrofluorometry, is a method generally called fluorescence analysis, which utilizes the characteristics and intensity of fluorescence generated when certain substance molecules are irradiated with light to perform qualitative or quantitative analysis of substances, has high sensitivity and good selectivity, and is widely used in many fields, for example: the microscopic fluorescence spectrum test for measuring a single oil-gas inclusion, namely monochromatic light only excites the single inclusion, and the oil-gas inclusions with different components can be distinguished through different spectrums of the oil-gas inclusions, so that the maturity of the oil-gas inclusions is judged, parameters such as excitation spectrum, emission spectrum, quantum yield, fluorescence life and the like of a fluorescent substance are not only related to the structure of a fluorescent chromophore in a molecule, but also strongly depend on the environment around the chromophore, namely the oil-gas inclusions are very sensitive to the surrounding environment, and the characteristics and the change of the microenvironment of the part where the fluorescent chromophore is located can be researched by measuring the change of the related fluorescence parameters by utilizing the characteristics, for example: the high pressure can cause the change of the structure of the biological molecules, the interaction among the molecules, the solvent property and even the molecular energy level, so as to cause the change of the fluorescence property, therefore, the influence of the pressure on the biological molecules can be researched by measuring the change of the fluorescence property under the high pressure condition, the introduction of the fluorescence spectrum method leads the high pressure on-line detection to be more sensitive and reliable, the research of the biological molecules in extreme environment is powerfully promoted, including the mutual relation among the biological molecules, the structural change of the biological molecules, even the biological life activity to the extreme, the adaptation mechanism and the like, on the basis of the common fluorescence spectrum method, the optical fiber coupling is often needed to be adopted to enter and exit the optical path system of the spectrometer, and the optical fiber coupling is combined with other accessories or analytical instruments to realize the molecular fluorescence spectrum test under the special conditions of high-sensitivity microscopic fluorescence spectrum, high-pressure on-line fluorescence spectrum, variable-temperature X-ray powder diffraction and fluorescence spectrum synchronous detection and the like, in the tests, a fluorescence spectrometer mainly provides monochromatic excitation light and a fluorescence spectrum for detection, an optical fiber is used as a signal coupling device to couple incident light or fluorescence into the spectrometer for spectrum test analysis, and a final detection result is in direct relation with a fixed position of the optical fiber, so that a bracket for fixing the optical fiber is one of very critical parts, the existing optical fiber fixing bracket only can fix the optical fiber and cannot adjust the distance between the optical fiber and an object to be detected and the distance between the optical fiber and two optical fibers, and the test is inconvenient.

Therefore, the utility model designs a novel fluorescence spectrum appearance optic fibre mount to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, the utility model provides a novel fluorescence spectrum appearance optic fibre mount has the advantage of nimble regulation.

In order to achieve the above object, the utility model provides a following technical scheme: a novel optical fiber fixing frame of a fluorescence spectrometer comprises a base, a U-shaped block, two first sliding blocks, an excitation optical fiber, an emission optical fiber, a second sliding block and a sample bottle, wherein a first abdicating groove and a second abdicating groove are respectively arranged on two sides of the upper surface of the base, the U-shaped block is positioned above the base, a hydraulic cylinder is arranged on the upper surface of the base, the output end of the hydraulic cylinder is fixed on the bottom surface of the U-shaped block, two sliding barrels are fixed on the bottom surface of the U-shaped block and are symmetrical about the hydraulic cylinder, first sliding rods are fixed on the upper surface of the base corresponding to the positions of the two sliding barrels, one end of each first sliding rod is positioned in the corresponding sliding barrel and is in sliding fit with the corresponding first sliding rod, the U-shaped block is connected with a first screw rod, one end of each first screw rod penetrates through the U-shaped block and is fixed with a knob, the two first sliding blocks are positioned in the U-shaped block and are symmetrical, the first screw rod penetrates through the two first sliding blocks, the two first sliding blocks are respectively in threaded connection with the first screw rod, one side of the upper surface of each first sliding block is rotatably connected with an extrusion block through a rotating shaft, the first sliding blocks and the corresponding extrusion blocks are fixed through screws, clamping grooves are formed in the joint parts of the first sliding blocks and the extrusion blocks, and the excitation optical fibers and the emission optical fibers are respectively positioned in two different groups of clamping grooves;

the bottom surface mounting has the motor in the first groove of stepping down, the second step down a groove inner wall and rotate and be connected with the second lead screw and this inner wall and use the second lead screw to be fixed with two second slide bars as the symmetry axis, second lead screw one end runs through the base and is fixed with the output of motor, two second slide bar and second lead screw run through the second slider respectively, second slide bar and second slider sliding fit, second lead screw and second slider threaded connection, second slider last fixed surface has a plurality of bracing pieces and a plurality of bracing piece to be the rectangular array, and is a plurality of the bracing piece top is fixed with places the frame, place the frame top and seted up the third groove of stepping down, the sample bottle passes the third groove of stepping down and is located and places the frame.

As the utility model discloses an optimized technical scheme, the bottom surface is fixed with the guide block in the U-shaped piece, the spout has been seted up to first slider lower surface correspondence guide block position department, the guide block is located the spout.

As a preferred technical scheme of the utility model, U-shaped piece one side is equipped with the scale, two sections screw threads and two sections screw symmetry settings have been seted up to first lead screw week side.

As a preferred technical scheme of the utility model, the draw-in groove inner wall is equipped with the rubber pad, first slider one side corresponds draw-in groove department and is fixed with the arc, arouse optic fibre and launch optic fibre all with the arc laminating.

As an optimal technical scheme of the utility model, second slide bar one end is fixed with the stopper, the stopper is located second slider one side.

As an optimal technical scheme of the utility model, the liquid that awaits measuring has been held in the sample bottle, place the frame in the bottom surface correspond the third and step down trench position department and seted up the holding tank, the sample bottle bottom is located the holding tank.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a setting of U-shaped piece, pneumatic cylinder, first lead screw and first slider is adjusted through the pneumatic cylinder and is aroused the port height of optic fibre and transmission optic fibre, and the knob is rotated simultaneously for arouse optic fibre and transmission optic fibre and be close to each other or keep away from under the effect of first lead screw, can follow level and vertical orientation respectively to arousing optic fibre and transmission optic fibre and adjust, and the stiff end that finally makes to arouse optic fibre and transmission optic fibre is just to the object that awaits measuring, has stronger practicality.

2. The utility model discloses a setting of motor, second lead screw and second slider drives the second lead screw through the motor and rotates for the second slider drives and places the sample bottle in frame and moves along the second slide bar to arousing optic fibre and transmission optic fibre stiff end, can pull open certain distance with arousing optic fibre and transmission optic fibre with the object that awaits measuring, makes when placing the object that awaits measuring, can not lead to the fact the collision to arousing optic fibre and transmission optic fibre.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the base, the second slide bar, the second lead screw and the motor when the base, the second slide bar, the second lead screw and the motor are connected;

fig. 3 is a schematic structural view of the U-shaped block, the hydraulic cylinder, the first slider, the excitation fiber and the emission fiber when they are connected;

FIG. 4 is a schematic structural view of the first slide block and the extrusion block of the present invention when they are connected;

fig. 5 is a schematic structural diagram of the second slider, the placing frame and the sample bottle when they are connected.

In the figure: 1. a base; 101. a first abdicating groove; 102. a second abdicating groove; 2. a U-shaped block; 201. a guide block; 202. a graduated scale; 3. a hydraulic cylinder; 4. a slide cylinder; 5. a first slide bar; 6. a first lead screw; 601. a knob; 7. a first slider; 701. a chute; 702. an arc-shaped plate; 8. extruding the block; 9. a screw; 10. a rubber pad; 11. an excitation optical fiber; 12. an emission optical fiber; 13. a second slide bar; 1301. a limiting block; 14. a second lead screw; 15. a motor; 16. a second slider; 17. a support bar; 18. placing the frame; 1801. a third abdicating groove; 1802. accommodating grooves; 19. and (4) a sample bottle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in FIGS. 1 to 5, the utility model provides a novel optical fiber fixing frame for fluorescence spectrometer, which comprises a base 1, a U-shaped block 2, two first sliders 7, an excitation optical fiber 11, an emission optical fiber 12, a second slider 16 and a sample bottle 19, wherein two sides of the upper surface of the base 1 are respectively provided with a first abdicating groove 101 and a second abdicating groove 102, the U-shaped block 2 is positioned above the base 1, the upper surface of the base 1 is provided with a hydraulic cylinder 3, the output end of the hydraulic cylinder 3 is fixed on the bottom surface of the U-shaped block 2, the bottom surface of the U-shaped block 2 is fixed with two sliding cylinders 4, the two sliding cylinders 4 are symmetrical about the hydraulic cylinder 3, the upper surface of the base 1 is fixed with a first sliding rod 5 corresponding to the two sliding cylinders 4, one end of the first sliding rod 5 is positioned in the corresponding sliding cylinder 4, the sliding cylinder 4 is in sliding fit with the first sliding rod 5, the U-shaped block 2 is rotatably connected with a first screw rod 6, one end of the first screw rod 6 penetrates through the U-shaped block 2 and is fixed with a knob 601, the two first sliders 7 are positioned in the U-shaped block 2, the two first sliders 7 are symmetrically arranged, the first screw rod 6 penetrates through the two first sliders 7, the two first sliders 7 are respectively in threaded connection with the first screw rod 6, one side of the upper surface of each first slider 7 is rotatably connected with an extrusion block 8 through a rotating shaft, the first sliders 7 and the corresponding extrusion blocks 8 are fixed through screws 9, clamping grooves are formed in the joint positions of the first sliders 7 and the extrusion blocks 8, and the excitation optical fibers 11 and the emission optical fibers 12 are respectively positioned in two groups of different clamping grooves;

the bottom surface installs motor 15 in the first groove of stepping down 101, second groove of stepping down 102 an inner wall rotates and is connected with second lead screw 14 and this inner wall uses second lead screw 14 as the symmetry axis to be fixed with two second slide bars 13, second lead screw 14 one end runs through base 1 and is fixed with the output of motor 15, two second slide bars 13 and second lead screw 14 run through second slider 16 respectively, second slide bar 13 and second slider 16 sliding fit, second lead screw 14 and second slider 16 threaded connection, second slider 16 upper surface is fixed with a plurality of bracing pieces 17 and a plurality of bracing piece 17 are the rectangular array, a plurality of bracing pieces 17 top are fixed with places frame 18, place frame 18 top has seted up the third groove of stepping down 1801, sample bottle 19 passes the third groove of stepping down 1801 and is located and places frame 18.

As shown in fig. 3 and 4, a guide block 201 is fixed on the bottom surface in the U-shaped block 2, a sliding groove 701 is formed in a position, corresponding to the guide block 201, of the lower surface of the first slider 7, the guide block 201 is located in the sliding groove 701, which is convenient for guiding the first slider 7, and meanwhile, friction between the first slider 7 and the U-shaped block 2 is reduced, a scale 202 is arranged on one side of the U-shaped block 2, two threads are formed on the peripheral side of the first lead screw 6, and the two threads are symmetrically arranged, so that the distance between the two first sliders 7 can be accurately adjusted, a rubber pad 10 is arranged on the inner wall of the clamping groove, so that the excitation optical fiber 11 and the emission optical fiber 12 can be firmly fixed, an arc-shaped plate 702 is fixed on one side of the first slider 7, the excitation optical fiber 11 and the emission optical fiber 12 are both attached to the arc-shaped plate 702, so that the excitation optical fiber 11 and the emission optical 12 are supported, and breakage of the excitation optical fiber 11 and the emission optical 12 is avoided.

As shown in FIG. 2, a limiting block 1301 is fixed to one end of the second sliding rod 13, and the limiting block 1301 is located on one side of the second slider 16, so as to limit the second slider 16.

Wherein as shown in fig. 5, the liquid to be tested is contained in the sample bottle 19, the containing groove 1802 is provided at the position corresponding to the third abdicating groove 1801 on the bottom surface in the placing frame 18, the bottom end of the sample bottle 19 is located in the containing groove 1802, and the sample bottle 19 is prevented from being toppled in the testing process.

The utility model discloses a theory of operation and use flow:

when the device is used, firstly, a sample bottle 19 containing liquid to be detected is placed in the placing frame 18 through the third abdicating groove 1801, then the motor 15 drives the second lead screw 14 to rotate, the second slider 16 drives the placing frame 18 and the sample bottle 19 therein to move towards the fixed ends of the excitation optical fiber 11 and the emission optical fiber 12 along the second slide bar 13, then the port heights of the excitation optical fiber 11 and the emission optical fiber 12 are adjusted through the hydraulic cylinder 3, and meanwhile, the knob 601 is rotated, so that the excitation optical fiber 11 and the emission optical fiber 12 are close to or far away from each other under the action of the first lead screw 6, and finally, the fixed ends of the excitation optical fiber 11 and the emission optical fiber 12 are just opposite to the liquid to be detected in the sample bottle 19.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel optical fiber fixing frame of a fluorescence spectrometer is characterized in that: the device comprises a base (1), a U-shaped block (2), two first sliding blocks (7), an excitation optical fiber (11), an emission optical fiber (12), a second sliding block (16) and a sample bottle (19), wherein a first abdicating groove (101) and a second abdicating groove (102) are respectively arranged on two sides of the upper surface of the base (1), the U-shaped block (2) is positioned above the base (1), a hydraulic cylinder (3) is arranged on the upper surface of the base (1), the output end of the hydraulic cylinder (3) is fixed on the bottom surface of the U-shaped block (2), two sliding cylinders (4) are fixed on the bottom surface of the U-shaped block (2), the two sliding cylinders (4) are symmetrical relative to the hydraulic cylinder (3), first sliding rods (5) are fixed on the positions of the upper surface of the base (1) corresponding to the two sliding cylinders (4), one end of each first sliding rod (5) is positioned in the corresponding sliding cylinder (4), and the sliding cylinders (4) are in sliding fit with the first sliding rods (5), the optical fiber laser device is characterized in that a first screw rod (6) is rotationally connected in the U-shaped block (2), one end of the first screw rod (6) penetrates through the U-shaped block (2) and is fixedly provided with a knob (601), two first sliding blocks (7) are located in the U-shaped block (2) and are symmetrically arranged, the first screw rod (6) penetrates through the two first sliding blocks (7), the two first sliding blocks (7) are respectively in threaded connection with the first screw rod (6), one side of the upper surface of each first sliding block (7) is rotationally connected with an extrusion block (8) through a rotating shaft, the first sliding blocks (7) and the corresponding extrusion blocks (8) are fixed through screws (9), clamping grooves are formed in the joint positions of the first sliding blocks (7) and the extrusion blocks (8), and the excitation optical fibers (11) and the emission optical fibers (12) are respectively located in two different clamping grooves;

the motor (15) is installed on the bottom surface in the first abdicating groove (101), one inner wall of the second abdicating groove (102) is rotatably connected with a second lead screw (14), the inner wall is fixed with two second slide bars (13) by the second lead screw (14) as a symmetrical axis, one end of the second lead screw (14) penetrates through the base (1) and is fixed with the output end of the motor (15), two the second slide bar (13) and the second lead screw (14) respectively penetrate through the second slider (16), the second slide bar (13) is in sliding fit with the second slider (16), the second lead screw (14) is in threaded connection with the second slider (16), the upper surface of the second slider (16) is fixed with a plurality of support bars (17) and a plurality of support bars (17) which are rectangular arrays, the top end of each support bar (17) is fixed with a placing frame (18), the top end of each placing frame (18) is provided with a third abdicating groove (1801), the sample bottle (19) passes through the third abdicating groove (1801) and is positioned in the placing frame (18).

2. The novel optical fiber fixing frame for fluorescence spectrometer of claim 1, wherein: the bottom surface is fixed with guide block (201) in U-shaped piece (2), spout (701) have been seted up to first slider (7) lower surface corresponding guide block (201) position, guide block (201) are located spout (701).

3. The novel optical fiber fixing frame for fluorescence spectrometer of claim 1, wherein: one side of the U-shaped block (2) is provided with a graduated scale (202), and two sections of threads are symmetrically arranged on the peripheral side surface of the first screw rod (6).

4. The novel optical fiber fixing frame for fluorescence spectrometer of claim 1, wherein: the clamping groove inner wall is provided with a rubber pad (10), an arc-shaped plate (702) is fixed on one side of the first sliding block (7) corresponding to the clamping groove, and the excitation optical fiber (11) and the emission optical fiber (12) are attached to the arc-shaped plate (702).

5. The novel optical fiber fixing frame for fluorescence spectrometer of claim 1, wherein: a limiting block (1301) is fixed to one end of the second sliding rod (13), and the limiting block (1301) is located on one side of the second sliding block (16).

6. The novel optical fiber fixing frame for fluorescence spectrometer of claim 1, wherein: the liquid that awaits measuring has been held in sample bottle (19), holding tank (1802) have been seted up to the corresponding third groove of stepping down (1801) position department of bottom surface in placing frame (18), sample bottle (19) bottom is located holding tank (1802).