CN112362585A

CN112362585A - Auxiliary device for spectrophotometer

Info

Publication number: CN112362585A
Application number: CN202011201830.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of spectrophotometers and discloses an auxiliary device for a spectrophotometer, which comprises a fixed box and cuvettes, wherein turntables are symmetrically and movably arranged in the fixed box, clamps are respectively clamped on the two turntables, the cuvettes are uniformly and movably arranged in the clamps on the right side, a fixed table is fixedly arranged in the fixed box and between the two turntables, and a wiping device is fixedly arranged on the left side of the fixed table. Through the arrangement of the mechanical arm, the actions of clamping and wiping and dewatering the frosted glass surface can be completed on the contrast cuvette, the contact between an operator and the cuvette is effectively avoided, the pollution caused by the contrast cuvette is avoided, the cleanness of the surface of the cuvette is ensured, the measurement quality and the measurement precision are ensured, meanwhile, through mechanical transmission, the cleaning and liquid filling of the contrast cuvette can be simultaneously carried out, the speed of the cleaning and liquid filling processes of the contrast cuvette is increased, the measurement preparation time is shortened, and the measurement efficiency is increased.

Description

Auxiliary device for spectrophotometer

Technical Field

The invention relates to the technical field of spectrophotometers, in particular to an auxiliary device for a spectrophotometer.

Background

The spectrophotometric method is to perform qualitative or quantitative analysis on the substance at the specific wavelength or the absorbance of light within a certain wavelength range, the used instruments include an ultraviolet spectrophotometer, a visible spectrophotometer (or a colorimeter), an infrared spectrophotometer or an atomic absorption spectrophotometer, when the spectrophotometric method is used, a standard solution and a solution to be measured are required to be respectively filled into a cuvette and then put into the spectrophotometer for detection, generally, the process is manual operation, but the following defects exist:

before detecting the liquid to be detected, a plurality of groups of standard liquids with different concentrations need to be detected, then a standard system is established to detect the concentration of the liquid to be detected, the standard liquid with the same concentration needs to be tested at least twice, then an average value is taken to eliminate measurement errors, the number of measurement positions of a spectrophotometer is limited, the process needs to be repeated to clean a cuvette and fill the standard liquid and the liquid to be detected, a large amount of time is consumed, and the measurement efficiency of the spectrophotometer is influenced

The standard solution and the solution to be detected are loaded into the cuvette, the operating personnel holds the frosted glass surface of the cuvette with fingers, then using distilled water to clean the cuvette, using thin and soft absorbent paper to absorb the outer surface of the cuvette so as to protect the light-transmitting surface, simultaneously using standard liquid and liquid to be detected to rinse the cuvette for several times, and the measured solution poured into the cuvette must not fall below three fifths and exceed three quarters of the cuvette, the operation process is complicated, the speed of operators is slow, the efficiency is low, the amount of solution poured into the cuvette cannot be accurately controlled, on one hand, the solution causes solution waste and increases the cost, on the other hand, the measurement numerical value has larger error and influences the measurement precision, and, when holding the cell, easy misoperation appears, touches the printing opacity face, leaves the fingerprint on the printing opacity face and pollutes the printing opacity face, further influences measurement accuracy.

Disclosure of Invention

The invention provides an auxiliary device for a spectrophotometer, which has the advantages of high speed of washing a cuvette and liquid loading and high liquid loading accuracy and solves the problems in the background technology.

The invention provides the following technical scheme: an auxiliary device for a spectrophotometer comprises a fixed box and a cuvette, wherein the inner part of the fixed box is symmetrically and movably provided with turntables, two turntables are respectively connected with a clamp and a right side, the inner part of the fixed box is fixedly provided with a fixed table between the two turntables, the left side of the fixed table is fixedly provided with a wiping device, the right side of the fixed table is movably connected with a waste liquid collector, the upper surface of the fixed table is movably provided with a magnetic iron bar, the inner part of the fixed box is uniformly and movably connected with an injector above the turntable at the right part, the top of the fixed box is uniformly and fixedly provided with an air pressure telescopic rod directly above the injector, the left side of the inner part of the fixed box is fixedly provided with a motor, and the movable end of the motor is fixedly connected with a lead screw, the right-hand member and the fixed case swing joint of lead screw, swing joint has the arm on the lead screw.

Preferably, the arm includes the ball cover, ball cover and lead screw threaded connection, the bottom fixedly connected with electromagnetism push rod of ball cover, the bottom fixedly connected with of electromagnetism push rod supports the U template, the inside movable mounting who supports the U template has rotating device, rotating device's bottom fixedly connected with supports dull and stereotyped, it has the connecting plate to support dull and stereotyped both sides activity joint respectively, support dull and stereotyped inside and be located the outside fixed mounting electromagnetism push rod of connecting plate, the outside of connecting plate and electromagnetism push rod's expansion end fixed connection, the inboard fixed mounting in bottom of connecting plate has splint, fixed mounting has absorbent paper coiling mechanism two on the electromagnetism push rod, the inboard and the two swing joint of absorbent paper coiling mechanism of splint.

Preferably, rotating device includes gear one, gear two and electromagnetism gag lever post, gear one with support U template swing joint, gear two is located the left side of gear one and with support U template swing joint, gear one meshes with gear two, the electromagnetism gag lever post is located the top of gear two and with support U template fixed connection, the bottom and the two swing joint of gear of electromagnetism gag lever post, the bottom left side fixed mounting of splint has the magnet piece, the tooth that sets up on the gear one accounts for three eighths of circumference.

Preferably, wiping arrangement is including activity stopper and piston rod, the activity stopper be located the mao glass side of cell and with fixed station swing joint, two flow channel have been seted up to the symmetry in the fixed station, it has hydraulic oil to fill in the flow channel, the piston rod is located the both sides of cell transparent surface and cup joints with the fixed station activity, the piston rod is close to the one end fixedly connected with backup pad of cell, one side fixedly connected with spring of cell is kept away from to the backup pad, the one end and the fixed station fixed connection of spring, fixed mounting has the paper coiling mechanism that absorbs water in the backup pad.

Preferably, anchor clamps include the fixed disk, even fixedly connected with spring on the fixed disk, the one end fixedly connected with swash plate of swash plate, swash plate and fixed disk activity joint, spring and swash plate respectively four can constitute a set of.

The invention has the following beneficial effects:

1. through the arrangement of the mechanical arm, the actions of clamping and wiping and dewatering the frosted glass surface can be completed on the contrast cuvette, the contact between an operator and the cuvette is effectively avoided, the pollution caused by the contrast cuvette is avoided, the cleanness of the surface of the cuvette is ensured, the measurement quality and the measurement precision are ensured, meanwhile, through mechanical transmission, the cleaning and liquid filling of the contrast cuvette can be simultaneously carried out, the speed of the cleaning and liquid filling processes of the contrast cuvette is increased, the measurement preparation time is shortened, and the measurement efficiency is increased.

2. Through the arrangement of the clamp, the clamp can clamp all solutions to be measured in the cuvette outside, and all standard solutions to be measured and solutions to be measured are sent into the measuring instrument to be measured at one time, so that the times of repeatedly taking and placing the cuvette by an operator in the measuring process are reduced, the complexity of operation is reduced, the error times of operation of the operator are effectively reduced, the accuracy is improved, on the other hand, the measuring smoothness is ensured, the measurement is completed at one time from the measurement to the result obtaining, and the measuring speed is increased.

Drawings

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

FIG. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a top partial schematic view of the structure of the present invention;

FIG. 4 is a schematic front view of a structural jig of the present invention;

FIG. 5 is a schematic front view of a robotic arm of the present invention;

FIG. 6 is a side view of a robotic arm according to the present invention;

FIG. 7 is an enlarged view of the point A in FIG. 1;

FIG. 8 is an enlarged view of the point B in FIG. 1;

FIG. 9 is an enlarged view of the invention at point C in FIG. 2;

fig. 10 is a schematic diagram of the swash plate of the present invention.

In the figure: 1. a fixed box; 2. a turntable; 3. a clamp; 31. fixing the disc; 32. a spring; 33. a sloping plate; 4. a cuvette; 5. a fixed table; 6. a wiping device; 61. a movable plug; 62. a flow channel; 63. a piston rod; 64. a support plate; 65. a spring; 66. a first absorbent paper winding device; 7. a mechanical arm; 71. a ball sleeve; 72. an electromagnetic push rod; 73. supporting the U-shaped plate; 74. a rotating device; 741. a first gear; 742. a second gear; 743. an electromagnetic limit rod; 75. supporting the flat plate; 76. a connecting plate; 77. an electromagnetic push rod; 78. a splint; 79. a second absorbent paper winding device; 8. a magnetic iron rod; 9. a waste liquid collector; 10. an injector; 11. an air pressure telescopic rod; 12. a motor; 13. a screw rod; 14. and a magnet block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, an auxiliary device for a spectrophotometer comprises a fixed box 1 and cuvettes 4, turntables 2 are symmetrically and movably mounted inside the fixed box 1, clamps 3 are respectively clamped on the two turntables 2, cuvettes 4 are uniformly and movably mounted in the right-side clamp 3, a fixed table 5 is fixedly mounted inside the fixed box 1 and between the two turntables 2, a wiping device 6 is fixedly mounted on the left side of the fixed table 5, a waste liquid collector 9 is movably clamped in the fixed table 5 and on the right side of the wiping device 6, a magnetic iron bar 8 is movably mounted on the upper surface of the fixed table 5 and on the right side of the waste liquid collector 9, injectors 10 are uniformly and movably clamped above the turntables 2 on the right side inside of the fixed box 1, air pressure telescopic rods 11 are uniformly and fixedly mounted on the top of the fixed box 1 and above the injectors 10, and a motor 12 is fixedly mounted on the left side inside the fixed box 1, the movable end of the motor 12 is fixedly connected with a screw rod 13, the right end of the screw rod 13 is movably connected with the fixed box 1, and the screw rod 13 is movably connected with a mechanical arm 7.

Wherein the mechanical arm 7 comprises a ball sleeve 71, the ball sleeve 71 is in threaded connection with the screw 13, the bottom of the ball sleeve 71 is fixedly connected with an electromagnetic push rod 72, the bottom end of the electromagnetic push rod 72 is fixedly connected with a supporting U-shaped plate 73, a rotating device 74 is movably arranged inside the supporting U-shaped plate 73, the bottom of the rotating device 74 is fixedly connected with a supporting flat plate 75, two sides of the supporting flat plate 75 are respectively and movably clamped with a connecting plate 76, an electromagnetic push rod 77 is fixedly arranged inside the supporting flat plate 75 and positioned outside the connecting plate 76, the outside of the connecting plate 76 is fixedly connected with the movable end of the electromagnetic push rod 77, a clamping plate 78 is fixedly arranged inside the bottom of the connecting plate 76, a second absorbent paper winding device 79 is fixedly arranged on the electromagnetic push rod 77, the inside of the clamping plate 78 is movably connected with the second absorbent paper winding device 79, the screw 13, carry out the removal of vertical direction through electromagnetism push rod 72, electromagnetism push rod 77 promotes connecting plate 76 and carries out the translation and form the centre gripping action, the liquid is annotated in the anchor clamps 3 on right side to cell 4, then accomplish the cleanness of contrast look dish 4's transparent surface in wiping arrangement 6 with the ground glass face centre gripping of cell 4 by arm 7, then transport to left anchor clamps 3 in for use, this process is quick convenient, need not the manual work and operate, increase contrast look dish 4 and wash and annotate the liquid speed, reduce the number of times of operating personnel and cell 4 contact, improve the clean rate of contrast look dish 4 transparent surface, guarantee measurement accuracy.

Wherein, the rotating device 74 includes a first gear 741, a second gear 742 and an electromagnetic limiting rod 743, the first gear 741 is movably connected with the supporting U-shaped plate 73, the second gear 742 is located on the left side of the first gear 741 and movably connected with the supporting U-shaped plate 73, the first gear 741 is meshed with the second gear 742, the electromagnetic limiting rod 743 is located above the second gear 742 and fixedly connected with the supporting U-shaped plate 73, the bottom end of the electromagnetic limiting rod 743 is movably connected with the second gear 742, a magnet block 14 is fixedly installed on the left side of the bottom of the clamp plate 78, three eighths of circumference is occupied by the teeth formed on the first gear 741, when the cuvette 4 is cleaned, the clamp plate 78 clamps the cuvette 4 in the right clamp 3, the cuvette is taken out and then moves leftwards, the magnet block 14 is in contact with the magnetic iron rod 8 for attraction, the circuit of the electromagnetic limiting rod 743 is switched on, the movable end of the electromagnetic limiting rod 743 is retracted, the ball sleeve, meanwhile, the electromagnetic push rod 72 pushes the supporting U-shaped plate 73 to descend, so that the clamping plate 78 carries the cuvette 4 to rotate 135 degrees around the gear-741, dumping of waste liquid in the cuvette 4 is completed, and cleaning of the cuvette 4 is completed.

Wherein, the wiping device 6 comprises a movable plug 61 and a piston rod 63, the movable plug 61 is located at the ground glass side of the cuvette 4 and movably connected with the fixed platform 5, two flow channels 62 are symmetrically arranged in the fixed platform 5, hydraulic oil is filled in the flow channels 62, the piston rod 63 is located at two sides of the transparent surface of the cuvette 4 and movably sleeved with the fixed platform 5, one end of the piston rod 63 close to the cuvette 4 is fixedly connected with a support plate 64, one side of the support plate 64 far away from the cuvette 4 is fixedly connected with a spring 65, one end of the spring 65 is fixedly connected with the fixed platform 5, a first absorbent paper rolling device 66 is fixedly installed on the support plate 64, when the mechanical arm 7 carries the cuvette 4 to descend, the clamp plate 78 presses the movable plug 61 down, so that the movable plug 61 presses the hydraulic oil in the flow channels 62 to push the piston rod 63 to translate, and close to the cuvette 4, so that the absorbent paper on the first absorbent paper rolling device 66 is in contact with the transparent surface of, the clear water is removed and the cuvette 4 is kept clean.

The fixture 3 comprises a fixed disc 31, springs 32 are uniformly and fixedly connected to the fixed disc 31, an inclined plate 33 is fixedly connected to one end of the inclined plate 33, the inclined plate 33 and the fixed disc 31 are movably clamped with the fixed disc 31, the springs 32 and the inclined plate 33 can form a group, the cuvette 4 is placed in the fixed disc 31, the springs 32 push the inclined plate 33 to clamp the frosted glass surface of the cuvette 4, the shaking is prevented, and meanwhile, when the mechanical arm 7 descends, the inclined plate 33 can be squeezed open rapidly to clamp the cuvette 4.

The working principle is that the air pressure telescopic rod 11 pushes the piston of the injector 10 to descend, standard liquid and liquid to be measured are respectively injected into the cuvette 4, then the turntable 2 drives the clamp 3 to rotate, the cuvette 4 is transported to a position close to the fixed platform 5, then the lead screw 13 drives the mechanical arm 7 to move left and right in parallel through the ball sleeve 71, the electromagnetic push rod 72 moves in the vertical direction, the electromagnetic push rod 77 pushes the connecting plate 76 to translate to form a clamping action, then the mechanical arm 7 clamps the frosted glass surface of the cuvette 4 and cleans the transparent surface of the cuvette 4 in the wiping device 6, firstly, the magnet block 14 is contacted and attracted with the magnetic iron rod 8, the circuit of the electromagnetic limit rod 743 is switched on, so that the movable end of the electromagnetic limit rod 743 retracts, the ball sleeve 71 continues to translate left, meanwhile, the electromagnetic push rod 72 pushes the supporting U-shaped plate 73 to descend, and then the clamping plate 78 carries the cuvette 4 to rotate 135 degrees around the gear 741, and pouring waste liquid in the contrast color dish 4, cleaning and rinsing the contrast color dish 4, returning to enter the right clamp 3 in the original way to continuously inject liquid, and after cleaning, clamping the color dish 4 by the mechanical arm 7 again to be sequentially transported to the left clamp 3 for standby.

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. The utility model provides an auxiliary device for spectrophotometer, includes fixed case (1) and cell (4), its characterized in that: the automatic cleaning device is characterized in that the inside of the fixed box (1) is provided with a turntable (2), the two turntables (2) are respectively connected with a clamp (3) in a clamping manner, the right side of the clamp (3) is provided with a cuvette (4) in an even movable manner, the inside of the fixed box (1) is provided with a fixed table (5) between the two turntables (2), the left side of the fixed table (5) is fixedly provided with a cleaning device (6), the right side of the fixed table (5) is movably connected with a waste liquid collector (9), the upper surface of the fixed table (5) is movably provided with a magnetic iron bar (8) on the right side of the waste liquid collector (9), the inside of the fixed box (1) is movably connected with an injector (10) above the turntable (2) on the right side in an even movable manner, the top of the fixed box (1) is fixedly provided with an air pressure telescopic rod (11) above the injector (10), the utility model discloses a safe and convenient operation, including fixed case (1), the inside left side fixed mounting of fixed case (1) has motor (12), the expansion end fixedly connected with lead screw (13) of motor (12), the right-hand member and fixed case (1) swing joint of lead screw (13), swing joint has arm (7) on lead screw (13).

2. An auxiliary device for a spectrophotometer as claimed in claim 1, wherein: the mechanical arm (7) comprises a ball sleeve (71), the ball sleeve (71) is in threaded connection with the screw rod (13), an electromagnetic push rod (72) is fixedly connected to the bottom of the ball sleeve (71), a supporting U-shaped plate (73) is fixedly connected to the bottom of the electromagnetic push rod (72), a rotating device (74) is movably mounted inside the supporting U-shaped plate (73), a supporting flat plate (75) is fixedly connected to the bottom of the rotating device (74), connecting plates (76) are movably clamped to the two sides of the supporting flat plate (75) respectively, an electromagnetic push rod (77) is fixedly mounted inside the supporting flat plate (75) and located on the outer side of the connecting plates (76), the outer side of the connecting plates (76) is fixedly connected with the movable end of the electromagnetic push rod (77), a clamping plate (78) is fixedly mounted on the inner side of the bottom of the connecting plates (76), and a second water-absorbing paper rolling device (79) is fixedly mounted, the inner side of the clamping plate (78) is movably connected with a second absorbent paper winding device (79).

3. An auxiliary device for a spectrophotometer as claimed in claim 2, wherein: the rotating device (74) comprises a first gear (741), a second gear (742) and an electromagnetic limiting rod (743), the first gear (741) is movably connected with the supporting U-shaped plate (73), the second gear (742) is located on the left side of the first gear (741) and movably connected with the supporting U-shaped plate (73), the first gear (741) is meshed with the second gear (742), the electromagnetic limiting rod (743) is located above the second gear (742) and fixedly connected with the supporting U-shaped plate (73), the bottom end of the electromagnetic limiting rod (743) is movably connected with the second gear (742), a magnet block (14) is fixedly mounted on the left side of the bottom of the clamping plate (78), and teeth formed on the first gear (741) occupy three-eighths of circumference.

4. An auxiliary device for a spectrophotometer as claimed in claim 1, wherein: wiping arrangement (6) are including activity stopper (61) and piston rod (63), the activity stopper (61) are located the ground glass side of cell (4) and with fixed station (5) swing joint, two flow channel (62) have been seted up to the symmetry in fixed station (5), it has hydraulic oil to fill in flow channel (62), piston rod (63) are located the both sides of cell (4) transparency and cup joint with fixed station (5) activity, piston rod (63) are close to one end fixedly connected with backup pad (64) of cell (4), one side fixedly connected with spring (65) of cell (4) are kept away from in backup pad (64), the one end and fixed station (5) fixed connection of spring (65), fixed mounting has a roll-up device (66) that absorbs water on backup pad (64).

5. An auxiliary device for a spectrophotometer as claimed in claim 1, wherein: anchor clamps (3) are including fixed disk (31), even fixedly connected with spring (32) on fixed disk (31), the one end fixedly connected with swash plate (33) of swash plate (33), swash plate (33) and fixed disk (31) activity joint, a set of can be constituteed to spring (32) and four respectively of swash plate (33).