CN214703283U

CN214703283U - Atomic absorption spectrometer

Info

Publication number: CN214703283U
Application number: CN202120699647.3U
Authority: CN
Inventors: 王怀兵; 蒋旭峰
Original assignee: Shaanxi Laibo Instrument Co ltd
Current assignee: Shaanxi Laibo Instrument Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-11-12
Anticipated expiration: 2031-04-07

Abstract

The utility model belongs to the technical field of spectrometers, in particular to an atomic absorption spectrometer, which comprises an atomic absorption spectrometer body, wherein the bottom of the atomic absorption spectrometer body is provided with a placing platen, a sample cup is placed at the middle position of the upper end of the placing platen, the bottom of the atomic absorption spectrometer body is arranged above the placing platen and is provided with a premixing chamber, the bottom end of the premixing chamber is fixed with a sampling suction pipe, the outer part of the bottom end of the sampling suction pipe is sleeved and connected with a movable sleeve pipe, a sealing ring is fixed on the periphery of the inner wall of the movable sleeve pipe, a conical connecting pipe is integrally formed at the bottom end of the movable sleeve pipe, a sample pipe is integrally formed at the bottom end of the conical connecting pipe, a protective cover is fixed on the periphery of the outer part of the conical connecting pipe, a sealing gasket is fixed on the periphery of the inner wall of the protective cover, the utility model discloses a sample cup below the sampling suction pipe can be conveniently taken and placed, the cup mouth at the upper end of the sample cup can be sealed by a sealing cover.

Description

Atomic absorption spectrometer

Technical Field

The utility model belongs to the technical field of the spectrum appearance, concretely relates to atomic absorption spectrum appearance.

Background

The atomic absorption spectrometer can measure a plurality of elements, the hydride generator can measure the trace amount of 8 volatile elements of mercury, arsenic, lead, selenium, tin, tellurium, antimony, germanium and the like, the instrument radiates light with characteristic spectral lines of the elements to be measured from a light source, the light is absorbed by ground state atoms of the elements to be measured in steam when the sample steam passes through, the content of the elements to be measured in the sample is measured according to the weakened degree of radiation characteristic spectral line, the atomic absorption spectrometer is widely used for constant and trace element analysis in the aspects of metallurgy, geology, mining, petroleum, light industry, agriculture, medicine, sanitation, food, environmental monitoring and the like, and the interference of the atomic absorption spectrometer can be eliminated by a method for eliminating background interference of protecting a complexing agent and adding a buffering agent, a double wavelength method, a deuterium lamp correction method, a absorption method, a Zeeman effect method and the like during the use process of the atomic absorption spectrometer, the atomic absorption spectrometer is more sensitive and accurate.

The existing atomic absorption spectrometer has the following defects in the daily use process: when reagents in a sample cup on a placing table are sucked and sampled by a premixing chamber in an atomization system through a bottom sampling suction pipe, the long-section sampling suction pipe is relatively inconvenient to stretch and retract, the placing of the sample cup on the placing table is affected, meanwhile, no better baffle is arranged around the outer portion of a cup opening of the sample cup on the placing table, the reagents in the sample cup are easy to leak and fall into foreign matters, and therefore the safe use of an atomic absorption spectrometer is affected.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides an atomic absorption spectrometer has simple operation and safe in utilization's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: an atomic absorption spectrometer comprises an atomic absorption spectrometer body, wherein a placing platen is arranged at the bottom of the atomic absorption spectrometer body, a sample cup is placed at the upper end middle position of the placing platen, a premixing chamber is arranged above the placing platen at the bottom of the atomic absorption spectrometer body, a sampling straw is fixed at the bottom end of the premixing chamber, a movable sleeve is sleeved and connected with the outside of the bottom end of the sampling straw, a sealing ring is fixed on the periphery of the inner wall of the movable sleeve, a conical connecting pipe is integrally formed at the bottom end of the movable sleeve, a sample pipe is integrally formed at the bottom end of the conical connecting pipe, a protective cover is fixed on the periphery of the outside of the conical connecting pipe, a sealing pad is fixed on the periphery of the inner wall of the protective cover, a movable connecting rod is fixed on the outer wall of one side of the movable sleeve, and a fixed support is fixed on both sides of the upper end of the placing platen, a movable groove is formed in the upper end of the fixed support, and the two ends of the movable connecting rod are located in the movable groove.

As the utility model discloses a preferred technical scheme of atomic absorption spectrum appearance, sample straw, movable sleeve, toper connecting pipe and appearance pipe communicate with each other in proper order, just the bottom of appearance pipe is located the inside of appearance cup, the protective cover overlaps each other all around with the upper end outside of mixing the room in advance, just sealed pad and the upper end outer wall of mixing the room in advance elastic contact all around, the bottom outer wall elastic contact all around of sealing washer and sample straw.

As the utility model discloses a preferred technical scheme of atomic absorption spectrometer, sealing washer and sealed the pad are rubber component.

As the utility model discloses a preferred technical scheme of atomic absorption spectrum appearance, the upper end intermediate position department of placing the platen is fixed with spacing holding strip, and the outside mutual block all around of bottom of spacing holding strip and appearance cup, the inner wall of spacing holding strip is fixed with the antifriction pad just the bottom outer wall elastic contact of the appearance cup of antifriction pad.

As the utility model discloses a preferred technical scheme of atomic absorption spectrometer, the antifriction pad is the rubber component.

As the utility model discloses an atomic absorption spectroscopy appearance preferred technical scheme, fixed bolster symmetric distribution and fixed bolster are "H" mutually perpendicular with movable connecting rod.

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

1. the utility model discloses the length of current sample straw has been shortened, and be equipped with the movable sleeve pipe that mobile receive and releases in the bottom of sample straw, when using, relative sample straw lapse movable sleeve pipe, thereby drive the inside that the appearance cup was stretched into to the appearance pipe, after the use, relative sample straw lapse movable sleeve pipe, thereby it stretches out from the inside of appearance cup to drive the appearance pipe, so that getting of sample straw below appearance cup is put, the appearance cup is getting the stopping that the process is difficult for receiving the sample straw of putting, the operation is thus simple, high durability and convenient use, when concrete operation, relative sample straw lapse stimulates movable sleeve pipe, movable sleeve pipe carries out spacing activity in the movable groove of fixed bolster upper end through the both ends tip of the movable connecting rod at back, make the appearance pipe stretch into the inside of appearance cup.

2. The utility model discloses in the use, go back accessible protective cover and sealed the pad and carry out the closing cap to the rim of a cup on the sample cup and seal up to the sealed protection of the inside reagent of sample cup, the reagent in the sample cup is difficult for spilling leak and just is difficult for falling into the foreign matter, and can carry out elasticity pressure to the sample cup and hold the injecing, so that the stability of sample cup is placed, and the sample cup is difficult for empting in the use and drops, easy operation, it is convenient to use, thereby makes the use of atomic absorption spectrum appearance body safer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the external connection section of the movable sleeve according to the present invention;

FIG. 3 is a schematic view of the external connection structure of the movable sleeve according to the present invention;

FIG. 4 is a schematic view of the connection structure between the movable rod and the fixed frame of the present invention;

fig. 5 is a schematic structural view of the position-limiting strip of the present invention.

In the figure: 1. an atomic absorption spectrometer body; 2. a premixing chamber; 3. a sampling straw; 4. placing a bedplate; 5. a sample cup; 6. an active cannula; 7. a seal ring; 8. anti-slip strips; 9. a conical connecting pipe; 10. a protective cover; 11. a gasket; 12. a sample tube; 13. a movable connecting rod; 14. fixing a bracket; 15. a movable groove; 16. limiting clamping strips; 17. an anti-friction pad.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: an atomic absorption spectrometer comprises an atomic absorption spectrometer body 1, wherein a placing platen 4 is arranged at the bottom of the atomic absorption spectrometer body 1, a sample cup 5 is placed at the middle position of the upper end of the placing platen 4, a premixing chamber 2 is arranged at the bottom of the atomic absorption spectrometer body 1 and above the placing platen 4, a sampling suction pipe 3 is fixed at the bottom end of the premixing chamber 2, a movable sleeve 6 is sleeved and connected with the periphery of the bottom end of the sampling suction pipe 3, a sealing ring 7 is fixed at the periphery of the inner wall of the movable sleeve 6, a conical connecting pipe 9 is integrally formed at the bottom end of the movable sleeve 6, a sample pipe 12 is integrally formed at the bottom end of the conical connecting pipe 9, a protective cover 10 is fixed at the periphery of the outer part of the conical connecting pipe 9, a sealing gasket 11 is fixed at the periphery of the inner wall of the protective cover 10, a movable connecting rod 13 is fixed at the outer wall of one side of the movable sleeve 6, and a fixed support 14 is fixed at both sides of the upper end of the placing platen 4, in the embodiment, the utility model shortens the length of the prior sampling suction tube 3, and the bottom of the sampling suction tube 3 is provided with the movable sleeve 6 which can be movably folded and unfolded, when in use, the movable sleeve 6 slides downwards relative to the sampling suction tube 3 to drive the sample tube 12 to extend into the sample cup 5, after in use, the movable sleeve 6 slides upwards relative to the sampling suction tube 3 to drive the sample tube 12 to extend out from the sample cup 5, so that the sample cup 5 below the sampling suction tube 3 is convenient to take and place, the sample cup 5 is not easily blocked by the sampling suction tube 3 in the taking and placing process, the operation is simple, the use is convenient, when in specific operation, the movable sleeve 6 is downwards pulled relative to the sampling suction tube 3, the movable sleeve 6 performs limit movement in the movable groove 15 at the upper end of the fixed support 14 through the end parts of the movable connecting rod 13 at the back part, make appearance pipe 12 stretch into the inside of appearance cup 5, the utility model discloses in the use, go back accessible protective cover 10 and sealed pad 11 carry out the closing cap to the rim of a cup of appearance cup 5 upper end sealed, so that the sealed protection of the inside reagent of appearance cup 5, reagent in the appearance cup 5 is difficult for spilling hourglass and is difficult for falling into the foreign matter, and can carry out elasticity pressure to appearance cup 5 and hold the injecing, so that the stability of appearance cup 5 is placed, appearance cup 5 is difficult for empting in the use and drops, and easy operation, it is convenient to use, thereby make the use of atomic absorption spectrum appearance body 1 safer, what do not describe in detail in this embodiment is prior art.

Specifically, a sampling suction pipe 3, a movable sleeve 6, a conical connecting pipe 9 and a sample pipe 12 are communicated in sequence, the bottom end of the sample pipe 12 is positioned inside a sample cup 5, a protective cover 10 is mutually sleeved with the periphery of the upper end of a premixing chamber 2, a sealing gasket 11 is in elastic contact with the periphery of the upper end outer wall of the premixing chamber 2, a sealing ring 7 is in elastic contact with the periphery of the bottom end outer wall of the sampling suction pipe 3, the movable sleeve 6 can move downwards relative to the sampling suction pipe 3 when in use, so that the sample pipe 12 is driven to extend into and extend out of the inside of the sample cup 5, and the protective cover 10 is further driven to be connected with or separated from the sample cup 5, the protective cover 10 can support the sample cup 5 when the sample cup 5 is separated, so as to prevent the sample cup 5 from being driven to move, and the conical connecting pipe 9 is used for reducing connection between the movable sleeve 6 and the sampling suction pipe 3, so that a reagent inside the sample cup 5 can be better sucked into the inside of the premixing chamber 2, and in the use process, the movable sleeve 6 and the sampling pipette 3 can be elastically sealed through the sealing ring 7 so as to prevent the reagent from leaking from the joint of the movable sleeve 6 and the sampling pipette 3, and the protective cover 10 and the sample cup 5 can be sealed through the sealing gasket 11 so as to prevent the reagent from leaking from the joint of the protective cover 10 and the sample cup 5.

Specifically, the sealing ring 7 and the sealing gasket 11 are both rubber components, and the elastic sealing effect is good.

Specifically, the middle positions of the outer walls of the two sides of the movable sleeve 6 are respectively fixed with an anti-slip strip 8, an arc-shaped anti-slip groove is formed in one side surface of each anti-slip strip 8, and the anti-slip strips 8 and the arc-shaped anti-slip grooves are provided to facilitate the up-and-down movement and sliding of the movable sleeve 6 relative to the sampling straw 3.

It is specific, the upper end intermediate position department of placing platen 4 is fixed with spacing holding strip 16, and spacing holding strip 16 and the outside block each other all around of bottom of appearance cup 5, the inner wall of spacing holding strip 16 is fixed with the bottom outer wall elastic contact of the appearance cup 5 of antifriction pad 17 and antifriction pad 17, when using, the appearance cup 5 level that will put reagent is arranged in and is placed platen 4 on, carry out the elasticity centre gripping through spacing holding strip 16 and antifriction pad 17 to the bottom of appearance cup 5 and prescribe a limit to, so that preliminary stable placing of appearance cup 5, and can make appearance cup 5 and sample straw 3 be alignment from top to bottom between two parties, thereby do benefit to placing and using of appearance cup 5.

Specifically, the anti-friction pad 17 is a rubber member, and the anti-friction pad 17 is used for anti-friction between the limiting holding strip 16 and the transparent sample cup 5.

Specifically, the fixed brackets 14 are symmetrically distributed, the fixed brackets 14 are perpendicular to the movable connecting rod 13 in an H shape, and the vertical moving distance of the movable sleeve 6 can be limited by the two fixed brackets 14 and the movable connecting rod 13 which penetrates through the movable grooves 15 in the upper ends of the two fixed brackets 14, so that the limiting movement of the movable sleeve 6 is facilitated.

The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, an external power supply is connected with the atomic absorption spectrometer body 1, the sample cup 5 containing the reagent is horizontally arranged on the placing bedplate 4, the bottom of the sample cup 5 is elastically clamped and limited through the limiting clamping strip 16 and the antifriction pad 17 so as to be convenient for the preliminary stable placing of the sample cup 5, the sample cup 5 and the sampling suction tube 3 can be aligned vertically and centrally, then the movable sleeve 6 is pulled downwards relative to the sampling suction tube 3 through the antiskid strip 8, the movable sleeve 6 carries out limiting movement in the movable groove 15 at the upper end of the fixed bracket 14 through the end parts at the two ends of the movable connecting rod 13 at the back, the sample tube 12 is extended into the sample cup 5, the upper end cup mouth of the sample cup 5 is sleeved and sealed through the protective cover 10 and the sealing pad 11 so as to be convenient for the sealing protection of the reagent in the sample cup 5, and the sample cup 5 can be further elastically pressed and limited so as to be convenient for the further stable placing of the sample cup 5, and then starting the atomic absorption spectrometer body 1 for corresponding use, enabling the reagent in the sample cup 5 to sequentially pass through the sample tube 12, the conical connecting tube 9, the movable sleeve 6 and the sampling suction tube 3 to enter the interior of the premixing chamber 2 and be correspondingly mixed, and further completing the determination of elements through the atomic absorption spectrometer body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Atomic absorption spectrometer, including atomic absorption spectrometer body (1), the bottom of atomic absorption spectrometer body (1) is provided with places platen (4), just upper end intermediate position department of placing platen (4) has placed appearance cup (5), the bottom of atomic absorption spectrometer body (1) is located the top of placing platen (4) and is provided with premixing chamber (2), just the bottom mounting of premixing chamber (2) has sample straw (3), its characterized in that: the bottom outside registrates all around of sample straw (3) is connected with movable sleeve (6), just the inner wall of movable sleeve (6) is fixed with sealing washer (7) all around, the bottom integrated into one piece of movable sleeve (6) has toper connecting pipe (9), just the bottom integrated into one piece of toper connecting pipe (9) has appearance pipe (12), the outside of toper connecting pipe (9) is fixed with protective cover (10) all around, just the inner wall of protective cover (10) is fixed with sealed pad (11) all around, one side outer wall of movable sleeve (6) is fixed with movable connecting rod (13), the upper end both sides of placing platen (4) all are fixed with fixed bolster (14), movable groove (15) have been seted up to the upper end inside of fixed bolster (14), just the both ends of movable connecting rod (13) all are located the inside of movable groove (15).

2. The atomic absorption spectrometer of claim 1, wherein: sample straw (3), movable sleeve (6), toper connecting pipe (9) and appearance pipe (12) communicate with each other in proper order, just the bottom of appearance pipe (12) is located the inside of appearance cup (5), protective cover (10) and the outside registrate each other all around of upper end of premixing room (2), just sealed pad (11) and the upper end outer wall elastic contact all around of premixing room (2), elastic contact all around of the bottom outer wall of sealing washer (7) and sample straw (3).

3. The atomic absorption spectrometer of claim 2, wherein: the sealing ring (7) and the sealing gasket (11) are both rubber components.

4. The atomic absorption spectrometer of claim 2, wherein: anti-slip strips (8) are fixed at the middle positions of the outer walls of the two sides of the movable sleeve (6), and arc-shaped anti-slip grooves are formed in the surface of one side of each anti-slip strip (8).

5. The atomic absorption spectrometer of claim 1, wherein: a limiting clamping strip (16) is fixed at the middle position of the upper end of the placing bedplate (4), the limiting clamping strip (16) is clamped with the outer portion of the bottom end of the sample cup (5) all around, an antifriction pad (17) is fixed on the inner wall of the limiting clamping strip (16), and the outer wall of the bottom end of the sample cup (5) of the antifriction pad (17) is in elastic contact.

6. The atomic absorption spectrometer of claim 5, wherein: the antifriction pad (17) is a rubber member.

7. The atomic absorption spectrometer of claim 1, wherein: the fixed brackets (14) are symmetrically distributed, and the fixed brackets (14) are mutually vertical to the movable connecting rod (13) in an H shape.