CN219694909U - Automatic sample feeding mechanism for atomic absorption spectrophotometer - Google Patents
Automatic sample feeding mechanism for atomic absorption spectrophotometer Download PDFInfo
- Publication number
- CN219694909U CN219694909U CN202321195796.1U CN202321195796U CN219694909U CN 219694909 U CN219694909 U CN 219694909U CN 202321195796 U CN202321195796 U CN 202321195796U CN 219694909 U CN219694909 U CN 219694909U
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- motor
- base
- sample injection
- atomic absorption
- movable chuck
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 238000005070 sampling Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to the technical field of sample injection mechanisms, in particular to an automatic sample injection mechanism for an atomic absorption spectrophotometer, which comprises the following components: the main body comprises a base, and the upper surface of the base is movably connected with a sample injection bracket; the replacing mechanism comprises a motor, the motor is fixedly connected to the surface of a base, an output shaft is arranged on the surface of the motor, a movable chuck is fixedly connected to the output shaft of the motor, the output shaft of the motor drives the movable chuck to rotate, a turntable is connected to the upper surface of the movable chuck in a clamping mode, a bottom groove is formed in the upper surface of the turntable, and a sample cup is placed in the bottom groove. According to the utility model, through the cooperation among the motor, the movable chuck, the turntable and the bottom groove, the turntable can be quickly replaced on the movable chuck by mechanical energy, and the turntable and the bottom groove are enabled to rotate so as to meet the clamping and fixing of the sample cup on the bottom groove, and the atomic absorption spectrophotometer is ensured to realize the automatic sample injection phenomenon.
Description
Technical Field
The utility model relates to the technical field of sample injection mechanisms, in particular to an automatic sample injection mechanism for an atomic absorption spectrophotometer.
Background
An atomic absorption spectrophotometer is a spectrometer for detecting the basic performance of substances, measuring the content of partial organic matters and analyzing the chemical form of metals, and the basic principle is that the atomic vapor in the ground state of the substances has different absorption effects on characteristic radiation, so that corresponding detection results are obtained.
The existing automatic sample feeding mechanism of the atomic absorption spectrophotometer can convey samples in a sample cup to a detection area through a pipeline by a liquid inlet pump, the sample cup is usually clamped on a clamping groove on a turntable, and when the detected sample cups are different in specification, the phenomenon that the sample cups cannot be placed down or cannot be clamped on the clamping groove of the turntable can occur, so that the atomic absorption spectrophotometer cannot realize the phenomenon of automatic sample feeding.
Disclosure of Invention
The utility model aims to provide an automatic sample feeding mechanism for an atomic absorption spectrophotometer, which aims to solve the problem that the atomic absorption spectrophotometer cannot realize the automatic sample feeding phenomenon because a sample cup cannot be placed or cannot be clamped in a clamping groove of a turntable when the specifications of the sample cups for detection proposed in the background art are different.
In order to achieve the above object, the present utility model provides a technical scheme of an automatic sample feeding mechanism for an atomic absorption spectrophotometer, comprising:
the main body comprises a base, wherein the upper surface of the base is movably connected with a sample injection bracket, and the surface of the sample injection bracket is fixedly connected with a sample injection frame;
the replacing mechanism comprises a motor, the motor is fixedly connected to the surface of a base, an output shaft is arranged on the surface of the motor, a movable chuck is fixedly connected to the output shaft of the motor, the output shaft of the motor drives the movable chuck to rotate, a turntable is connected to the upper surface of the movable chuck in a clamping mode, a bottom groove is formed in the upper surface of the turntable, and a sample cup is placed in the bottom groove.
Preferably, the surface of the sample injection frame is provided with a dismounting mechanism, the dismounting mechanism comprises a screw thread pair, the screw thread pair is fixedly connected with one end of the sample injection frame far away from the sample injection frame, the screw thread pair is in threaded connection with a screw rod on the surface, the lower surface of the screw rod is fixedly connected with a sample injection head, the upper surface of the screw rod is fixedly connected with a connector, and the upper surface of the connector is connected with a sample injection pipe in a clamping manner.
Preferably, the through hole is formed in the surface of the base, a cavity is formed in the bottom of the through hole of the base, the motor is fixedly connected to the cavity of the base, and the output shaft of the motor rotates on the through hole of the base.
Preferably, the movable chuck is not contacted with the base, the movable chuck is in a disc shape, a clamping block is fixedly connected to the movable chuck, a clamping groove is formed in the bottom of the rotary table, the shape of the clamping groove of the rotary table is the same as that of the movable chuck, and the movable chuck is connected to the clamping groove of the rotary table in a clamping mode.
Preferably, the bottom grooves are provided with a plurality of groups, and the bottom grooves are uniformly arranged on the upper surface of the turntable in a circular shape.
Preferably, the screw is fixed on the screw pair through threaded connection, and the screw side effect is at the sample cup of the block on the bottom slot.
Compared with the prior art, the utility model has the beneficial effects that:
1. this automatic sample introduction mechanism of atomic absorption spectrophotometer, through the cooperation between motor, removable chuck, carousel and the kerve, can be quick change the carousel mechanical energy on removable chuck to make carousel and kerve rotatory, in order to satisfy the block of sample cup on the kerve fixed, guarantee atomic absorption spectrophotometer can realize the autosampler phenomenon.
2. This automatic sampling mechanism of atomic absorption spectrophotometer through screw thread pair, screw rod, advance appearance head, connector and advance appearance pipe, has accomplished the screw rod and has been dismantled and install on screw thread pair, and the screw rod has advance appearance head and the connector of upper and lower surface to have different specifications and use, and the guarantee advances the appearance pipe and can block the connector, also can advance the bore through advance appearance head bottom and adjust the speed of taking a sample, compares directly to advance the appearance pipe and fix on advance the appearance frame, more convenient high-efficient.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present utility model;
FIG. 2 is a schematic perspective exploded view of the structure of the present utility model;
FIG. 3 is a schematic view of a bottom cross-sectional perspective explosion of the structure of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. a base; 11. a sample injection bracket; 12. a sample injection frame; 2. a motor; 21. a movable chuck; 22. a turntable; 23. a clamping groove; 3. a thread pair; 31. a screw; 32. a sample introduction head; 33. a connector; 34. and (5) feeding a sample tube.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, an embodiment of the present utility model is provided:
an autosampler mechanism for an atomic absorption spectrophotometer, comprising:
the main body comprises a base 1, wherein the base 1 is arranged in front of sample injection of the atomic absorption spectrophotometer, the upper surface of the base 1 is movably connected with a sample injection support 11, the bottom of the sample injection support 11 is provided with a cylinder, the sample injection support 11 can be lifted on the surface of the base 1, a sample injection frame 12 is fixedly connected on the surface of the sample injection support 11, and the sample injection support 11 drives the sample injection frame 12 to lift together;
the replacement mechanism comprises a motor 2, the motor 2 is controlled through a control unit, the motor 2 is fixedly connected to the surface of a base 1, an output shaft is arranged on the surface of the motor 2, a movable chuck 21 is fixedly connected to the output shaft of the motor 2, the output shaft of the motor 2 drives the movable chuck 21 to rotate, a turntable 22 is connected to the upper surface of the movable chuck 21 in a clamping mode, a bottom groove 23 is formed in the upper surface of the turntable 22, sample cups are placed in the bottom groove 23, and different sample cups can be placed in the bottom grooves 23 with different calibers.
Further, be provided with detaching mechanism on the surface of advance appearance frame 12, detaching mechanism includes screw thread pair 3, screw thread pair 3 fixed connection is in advance the one end that advance appearance frame 12 kept away from advance appearance frame 11, screw thread pair 3 on the surface screw thread is connected with screw rod 31, the lower surface fixedly connected with advance appearance head 32 of screw rod 31, the upper surface fixedly connected with connector 33 of screw rod 31, the upper surface block of connector 33 is connected with advance appearance pipe 34.
Further, the through hole is formed in the surface of the base 1, a cavity is formed in the bottom of the through hole of the base 1, the motor 2 is fixedly connected to the cavity of the base 1, an output shaft of the motor 2 rotates on the through hole of the base 1, and the cavity and the through hole of the base 1 enable a driving mechanism for the movable chuck 21 to rotate to be hidden and save space.
Further, the movable chuck 21 is not contacted with the base 1, friction is avoided between the movable chuck 21 and the base 1, the movable chuck 21 is in a disc shape, a clamping block is fixedly connected to the movable chuck 21, a clamping groove is formed in the bottom of the turntable 22, the clamping groove of the turntable 22 is identical to the movable chuck 21 in shape, the movable chuck 21 is clamped and connected to the clamping groove of the turntable 22, and when the movable chuck 21 rotates, the turntable 22 can be driven to rotate in the rotating process of the movable chuck 21 due to the limitation of the clamping block, and the turntable 22 can be easily detached and replaced on the movable chuck 21.
Further, the bottom grooves 23 are provided with a plurality of groups, the bottom grooves 23 are uniformly arranged on the upper surface of the turntable 22 in a circular shape, the sampling positions of the bottom grooves 23 can be replaced after the turntable 22 rotates by one end for a distance, fixed-point sampling is performed on each group of bottom grooves 23, and the sizes of the bottom grooves 23 are changed by replacing different turntables 22, so that different sample cups can be adapted.
Further, connecting holes are formed among the screw 31, the connector 33 and the sample injection head 32 and used for conveying samples, the screw 31 is fixed on the screw pair 3 through threaded connection, the screw pair 3 acts on a sample cup clamped on the bottom groove 23, the sample injection head 32 conveys samples in the sample cup to the sample injection pipe 34 through the screw 31 and the connector 33, the sample injection pipe 34 conveys the samples to a monitoring area through a liquid inlet pump, and internal components of the samples are detected.
Working principle: when the sample cup of another specification is used in the detection process, the sample cup cannot be clamped and fixed on the bottom groove 23, the turntable 22 is taken out on the movable chuck 21, the new turntable 22 is connected to the movable chuck 21 through the clamping groove in a clamping way, the motor 2 drives the movable chuck 21 to rotate through the output shaft, the movable chuck 21 drives the turntable 22 to rotate, the bottom groove 23 on the turntable 22 moves in position, and the bottom groove 23 drives the sample cup to move to the sample sampling area for sampling, so that the normal operation of automatic sampling setting is ensured.
Through the mode fixed connection with screw rod 31 through threaded connection on screw thread pair 3, accomplished the dismantlement and the installation of screw rod 31, advance appearance head 32 and connector 33 on screw thread pair 3, its advance appearance head 32 and the size of connector 33 can carry out suitable change to satisfy the block relation of advance appearance pipe 34 and connector 33, avoid advance appearance pipe 34 block and go up connector 33, also can set for the bore size of advance appearance head 32 bottom according to the demand.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An autosampler mechanism for an atomic absorption spectrophotometer, comprising:
the main body comprises a base (1), wherein the upper surface of the base (1) is movably connected with a sample injection bracket (11), and the surface of the sample injection bracket (11) is fixedly connected with a sample injection bracket (12);
change mechanism, including motor (2), motor (2) fixed connection is on the surface of base (1), be provided with the output shaft on the surface of motor (2), fixedly connected with removable chuck (21) on the output shaft of motor (2), the output shaft of motor (2) drives removable chuck (21) rotatory, the block is connected with carousel (22) on the upper surface of removable chuck (21), undercut (23) have been seted up to the upper surface of carousel (22), sample cup has been placed to undercut (23).
2. An autosampler mechanism for an atomic absorption spectrophotometer according to claim 1, wherein: the utility model discloses a sample injection device, including sample injection frame (12), be provided with detaching mechanism on the surface of sample injection frame (12), detaching mechanism includes screw thread pair (3), screw thread pair (3) fixed connection is keeping away from the one end of sample injection frame (11) at sample injection frame (12), screw thread pair (3) on the surface threaded connection has screw rod (31), the lower fixed surface of screw rod (31) is connected with advances first (32), the last fixed surface of screw rod (31) is connected with connector (33), the upper surface block of connector (33) is connected with into sampling tube (34).
3. An autosampler mechanism for an atomic absorption spectrophotometer according to claim 1, wherein: the through hole is formed in the surface of the base (1), a cavity is formed in the bottom of the through hole of the base (1), the motor (2) is fixedly connected to the cavity of the base (1), and an output shaft of the motor (2) rotates on the through hole of the base (1).
4. An autosampler mechanism for an atomic absorption spectrophotometer according to claim 3, wherein: the movable chuck (21) is not contacted with the base (1), the movable chuck (21) is in a disc shape, a clamping block is fixedly connected to the movable chuck (21), a clamping groove is formed in the bottom of the rotary table (22), the clamping groove of the rotary table (22) is identical to the movable chuck (21) in shape, and the movable chuck (21) is connected to the clamping groove of the rotary table (22) in a clamping mode.
5. An autosampler mechanism for an atomic absorption spectrophotometer according to claim 4 wherein: the bottom grooves (23) are provided with a plurality of groups, and the bottom grooves (23) are uniformly arranged on the upper surface of the turntable (22) in a round shape.
6. An autosampler mechanism for an atomic absorption spectrophotometer according to claim 2, wherein: the screw rod (31) is fixed on the screw thread pair (3) through threaded connection, and the screw thread pair (3) acts on the sample cup clamped on the bottom groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321195796.1U CN219694909U (en) | 2023-05-18 | 2023-05-18 | Automatic sample feeding mechanism for atomic absorption spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321195796.1U CN219694909U (en) | 2023-05-18 | 2023-05-18 | Automatic sample feeding mechanism for atomic absorption spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219694909U true CN219694909U (en) | 2023-09-15 |
Family
ID=87946305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321195796.1U Active CN219694909U (en) | 2023-05-18 | 2023-05-18 | Automatic sample feeding mechanism for atomic absorption spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219694909U (en) |
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2023
- 2023-05-18 CN CN202321195796.1U patent/CN219694909U/en active Active
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