CN213422953U

CN213422953U - Improved generation graphite furnace atomic absorption spectrophotometer

Info

Publication number: CN213422953U
Application number: CN202021365931.9U
Authority: CN
Inventors: 周玲慧; 沈云芳; 任佳伟; 廖桂陶; 孙捷
Original assignee: Huzhou Zhongyi Testing & Research Institute Co ltd
Current assignee: Huzhou Zhongyi Testing & Research Institute Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-06-11
Anticipated expiration: 2030-07-13

Abstract

The utility model belongs to the technical field of check out test set, especially, relate to an improved generation graphite furnace atomic absorption spectrophotometer. The utility model discloses a set up the mode of erection column unit, rotary disk unit, dustproof apron unit and friction disc unit on the protrusion board of separation groove, reach the stable effect of laying of sample bottle. The utility model has the advantages of sample bottle laying structural stability is high, is difficult for empting during the rotation, gets to put convenient operation swift, and is dustproof effectual, and the difficult ash staining of sample to and rotary disk speed reduction is rational in infrastructure effective, and the sample is difficult for spilling in the general rotation rate assurance sample bottle after the appropriate speed reduction.

Description

Improved generation graphite furnace atomic absorption spectrophotometer

Technical Field

The utility model belongs to the technical field of check out test set, especially, relate to an improved generation graphite furnace atomic absorption spectrophotometer.

Background

An atomic absorption spectrophotometer of a graphite furnace refers to an element content measuring device, wherein an electric heating atomizer is a graphite furnace, substance ground state atomic steam is obtained through a heating mode of the graphite furnace, and finally metal element analysis is carried out on the atomic steam to obtain a trace element measuring result.

Harmful metals in drinking water refer to a collection of heavy metals such as chromium, lead, mercury, cadmium and the like, and the content of the harmful metals can be determined by various atomic absorption spectrophotometers.

On the other hand, the sampling disc structure of the existing graphite furnace atomic absorption spectrophotometer has the following two problems: firstly, a sample is easy to spill out when the sampling disc rotates; secondly, sampling dish top lacks the dust cover, and the sample is contaminated easily, so urgently need an improved generation graphite oven atomic absorption spectrophotometer of sampling dish structure scientific and reasonable, convenient to use efficient in the market.

The patent publication number is CN 209707362U, and the china utility model patent that bulletins day is 2019.11.29 discloses a graphite stove atomic absorption spectrophotometer, the on-line screen storage device comprises a base, the top of base is provided with the monochromator, the top of monochromator is provided with does not have oily low noise air compressor, one side that does not have oily low noise air compressor is provided with the data collection treater, and the opposite side that does not have oily low noise air compressor is provided with the baffle, the bottom of baffle is provided with the fixed plate, the top of fixed plate is provided with the analytic bottle of solvating agent, the top of the analytic bottle of solvating agent is provided with the bracing piece, the top of bracing piece is provided with gathers the dish, the opposite side of baffle is provided with graphite.

But the spectrophotometer collecting tray in the utility model has the problem of inconvenient use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improved generation graphite furnace atomic absorption spectrophotometer, it can reach the stable effect of laying of sample bottle through the mode that sets up erection column unit, rotary disk unit, dust cover unit and friction disc unit on the protrusion board of dividing the cell. The utility model has the advantages of sample bottle laying structural stability is high, is difficult for empting during the rotation, gets to put convenient operation swift, and is dustproof effectual, and the difficult ash staining of sample to and rotary disk speed reduction is rational in infrastructure effective, and the sample is difficult for spilling in the general rotation rate assurance sample bottle after the appropriate speed reduction.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides an improved generation graphite stove atomic absorption spectrophotometer, includes the spectrophotometer host computer, sets up the branch groove on the spectrophotometer host computer, and set up the protrusion board on the terminal surface of branch groove medial side, still includes the setting on the end of protrusion board outside, and the lower extreme trompil cup joints the rotary disk unit that sets up on the erection column unit and be used for laying the sample bottle, sets up the dust cover unit on the rotary disk unit, and set up on the protrusion board and through the friction deceleration mode in order to be used for reducing the friction disc unit rotational speed's friction disc unit.

The further preferred technical scheme is as follows: the mounting column unit comprises a hollow cylinder arranged on the outer side end of the protruding plate and a clamping ring which is arranged on the outer ring surface of the hollow cylinder and has a semicircular vertical section; the rotary disc unit comprises a circular plate body, a circular placing groove, an installing groove and two protruding rings, wherein the circular placing groove is arranged on the upper surface of the circular plate body and used for placing a sample bottle, the installing groove is arranged at the middle position on the lower surface of the circular plate body and used for inserting the hollow cylinder, the two protruding rings are arranged on the inner ring surface of the installing groove, the vertical cross section of each protruding ring is semicircular, and the two protruding rings are respectively used for limiting and fixing the upper side and the lower side of the clamping ring.

The further preferred technical scheme is as follows: the circular placing grooves are uniformly arranged on the upper surface of the circular plate body at intervals according to a circumferential arrangement mode, temporary placing grooves used for temporarily placing sample bottles in use are formed in the middle of the upper surface of the circular plate body, elastic rings used for clamping the sample bottles inwards are arranged on the inner ring surface of each circular placing groove, and annular side grooves used for clamping and installing the dustproof cover plate units are formed in the upper surface of the circular plate body.

The further preferred technical scheme is as follows: the dustproof cover plate unit comprises a circular cover body with an inverted U-shaped vertical section and inserted into the annular side groove, and an inverted U-shaped handle arranged on the upper surface of the circular cover body.

The further preferred technical scheme is as follows: the number of the inverted U-shaped handles is two, and the handles are used for supporting and fixing when the circular cover body is placed with the opening facing upwards.

The further preferred technical scheme is as follows: the dustproof cover plate unit also comprises a side U-shaped grip which is arranged on the outer annular surface of the circular cover body and used for carrying out side holding and lifting when the opening of the circular cover body is placed upwards.

The further preferred technical scheme is as follows: the friction disc unit is including setting up on the protruding board outside end upper surface and with the cavity cylinder is the protruding ring that cup joints the position relation, and sets up on the circular plate body lower surface and through carry out the slip friction mode in order to be used for reducing on the protruding ring the protruding piece of circular plate body rotation speed.

The further preferred technical scheme is as follows: the friction plate unit further comprises an end groove arranged on the upper end face of the hollow cylinder, and an in-groove elastic plate which is arranged on the end groove and is used for reducing the rotating speed of the circular plate body in a clamping mode with the end face of the inner side of the mounting groove.

The further preferred technical scheme is as follows: the two inverted U-shaped grips are arranged in parallel.

The further preferred technical scheme is as follows: the depth of the temporary mounting groove is smaller than that of the circular mounting groove.

The utility model discloses a set up the mode of erection column unit, rotary disk unit, dustproof apron unit and friction disc unit on the protrusion board of separation groove, reach the stable effect of laying of sample bottle. The utility model has the advantages of sample bottle laying structural stability is high, is difficult for empting during the rotation, gets to put convenient operation swift, and is dustproof effectual, and the difficult ash staining of sample to and rotary disk speed reduction is rational in infrastructure effective, and the sample is difficult for spilling in the general rotation rate assurance sample bottle after the appropriate speed reduction.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic view of the rotation plate unit of the present invention.

Fig. 4 is a schematic diagram of the position structure of the friction plate unit in the present invention.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1, 2, 3 and 4, an improved graphite furnace atomic absorption spectrophotometer comprises a spectrophotometer host 11, a separation groove 12 arranged on the spectrophotometer host 11, a protruding plate 13 arranged on the inner side end surface of the separation groove 12, a mounting column unit 1 arranged on the outer side end of the protruding plate 13, a rotary disk unit 2 arranged on the mounting column unit 1 in a sleeved mode through a lower end opening and used for placing a sample bottle, a dustproof cover plate unit 3 arranged on the rotary disk unit 2, and a friction plate unit 4 arranged on the protruding plate 13 and used for reducing the rotating speed of the rotary disk unit 2 in a friction speed reduction mode.

In this embodiment, the spectrophotometer host 11 integrates an electrothermal atomizer and a spectrophotometer in the prior art, the separation groove 12 is an operation space and a heat-resistant and heat-insulating partition, and the rotary disk structure on the protruding plate 13 is used for placing a plurality of sample bottles, so as to ensure the convenience of taking and placing samples in the whole detection operation.

The rotary disk unit 2 is directly provided with a sample bottle, the rotary disk unit 2 rotates on the mounting column unit 1, so that a basic sampling convenience effect can be guaranteed, the dustproof cover plate unit 3 is used for preventing dust of an opened sample bottle and blocking the opened sample bottle, and the friction plate unit 4 is used for reducing the rotation speed of the rotary disk unit 2, so that the sample bottle on the rotary disk unit 2 is not prone to toppling and a sample in the sample bottle is not prone to spilling under the condition of general rotation driving force of a common person.

The mounting column unit 1 comprises a hollow cylinder 101 arranged on the outer side end of the protruding plate 13 and a clamping ring 102 which is arranged on the outer ring surface of the hollow cylinder 101 and has a semicircular vertical section; the rotating disk unit 2 comprises a circular plate body 201, a circular placing groove 202 which is arranged on the upper surface of the circular plate body 201 and used for placing a sample bottle, a mounting groove 203 which is arranged at the middle position on the lower surface of the circular plate body 201 and used for inserting the hollow cylinder 101, and two convex rings 204 which are arranged on the inner annular surface of the mounting groove 203, have semicircular vertical sections and are respectively used for limiting and fixing the upper side and the lower side of the clamping ring 102. The circular placing grooves 202 are uniformly arranged on the upper surface of the circular plate body 201 at intervals according to a circumferential arrangement mode, a temporary placing groove 205 for temporarily placing a sample bottle in use is arranged at the middle position on the upper surface of the circular plate body 201, an elastic ring 206 for inwards clamping the sample bottle is arranged on the inner ring surface of the circular placing groove 202, and an annular side groove 207 for clamping and installing the dustproof cover plate unit 3 is arranged on the upper surface of the circular plate body 201.

In this embodiment, an open sample bottle is placed in the circular placement groove 202, and is clamped by the elastic ring 206 made of a sponge material, so as to ensure that the sample bottle is not prone to toppling over, the protruding rings 204 are provided on both upper and lower sides of the snap-fit ring 102, so as to ensure that the circular plate 201 can stably rotate at the height and cannot accidentally fall off, the hollow cylinder 101 is made of high-strength rubber, and the snap-fit ring 102 can be snapped between the upper and lower protruding rings 204 under a proper force application condition by the hollow cylinder 101 through proper inward shrinkage deformation.

The dustproof cover plate unit 3 includes a circular cover body 301 having an inverted U-shaped vertical cross section and inserted into the annular side groove 207, and an inverted U-shaped grip 302 provided on an upper surface of the circular cover body 301. The number of the inverted U-shaped grips 302 is two, and the grips are used for supporting and fixing when the circular cover 301 is placed with the opening facing upward. The dustproof cover plate unit 3 further includes a side U-shaped grip 303 disposed on an outer circumferential surface of the circular cover 301 for performing side gripping and lifting when the circular cover 301 is placed with its opening facing upward.

In this embodiment, the dustproof cover plate unit 3 is made of transparent plastic, the inverted U-shaped grip 302 is used for holding when the dustproof structure is opened, and is used for inverted support when the circular cover 301 is idle, the side U-shaped grip 303 is used for side holding when the circular cover 301 is lifted, and finally the inverted circular cover 301 is buckled on the annular side groove 207, so that the opening and closing operation of the dustproof cover plate unit 3 in the sample bottle taking and placing process can be completed.

Friction disc unit 4 is including setting up on the protruding board 13 outside end upper surface and with hollow cylinder 101 is the bellying ring 401 of cup jointing position relation, and sets up on the circular plate 201 lower surface and through carry out the slip friction mode on the bellying ring 401 and be used for reducing the protruding piece 402 of circular plate 201 rotational speed. The friction plate unit 4 further includes a head groove 403 provided on an upper end surface of the hollow cylinder 101, and an in-groove elastic plate 404 provided on the head groove 403 and used for reducing a rotation speed of the circular plate 201 by clamping with an inner end surface of the mounting groove 203.

In this embodiment, the material of protruding ring 401 and protruding piece 402 all has current plastics, guarantees appropriate sliding resistance, the material of inslot flexure strip 404 is current rubber, guarantees deformability and structural strength moderate, finally protruding ring 401 and protruding piece 402, inslot flexure strip 404 and the two place sliding friction structure of mounting groove 203 medial surface can guarantee when ordinary one hand of ordinary people grips the rotatory promotion, and the rotational speed can not be too big, guarantees that the sample bottle is difficult for dropping, wait to detect the sample in the drinking water and difficult spill, can rotate at slower speed moreover rotary disk unit 2 can.

The two inverted U-shaped grips 302 are arranged in parallel. The depth of the temporary receiving groove 205 is smaller than that of the circular receiving groove 202.

In this embodiment, a sample bottle may need to be taken and placed for multiple times during the whole detection process, so that it is troublesome to directly pull out and insert the sample bottle in the circular placement groove 202, and the elastic ring 206 is also laborious, so that the temporary placement groove 205 is formed in the middle of the upper surface of the circular plate 201 for temporarily placing the sample bottle, thereby ensuring the convenience of taking and placing the sample, and when the sample bottle is placed in the temporary placement groove 205, because the position of the temporary placement groove is close to the middle, the rotation speed is slower, and the sample bottle is less prone to toppling, at this time, the rotation speed of the circular plate 201 does not need to be greatly reduced, thereby ensuring the convenience of rotationally taking other sample bottles.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the appended claims.

Claims

1. An improved graphite furnace atomic absorption spectrophotometer comprises a spectrophotometer host (11), a separation groove (12) arranged on the spectrophotometer host (11), and a protruding plate (13) arranged on the inner side end face of the separation groove (12), and is characterized in that: the sample bottle mounting device is characterized by further comprising a mounting column unit (1) arranged on the outer side end of the protruding plate (13), a rotary disk unit (2) which is arranged on the mounting column unit (1) in a sleeved mode and used for placing sample bottles and provided with a lower-end opening, a dustproof cover plate unit (3) arranged on the rotary disk unit (2), and a friction sheet unit (4) which is arranged on the protruding plate (13) and used for reducing the rotating speed of the rotary disk unit (2) in a friction speed reduction mode.

2. The improved graphite furnace atomic absorption spectrophotometer of claim 1, wherein: the mounting column unit (1) comprises a hollow cylinder (101) arranged at the outer side end of the protruding plate (13) and a clamping ring (102) which is arranged on the outer annular surface of the hollow cylinder (101) and has a semicircular vertical section; the rotary disk unit (2) comprises a circular plate body (201), a circular placing groove (202) which is arranged on the upper surface of the circular plate body (201) and used for placing a sample bottle, a mounting groove (203) which is arranged at the middle position on the lower surface of the circular plate body (201) and used for inserting the hollow cylinder (101), and two convex rings (204) which are arranged on the inner ring surface of the mounting groove (203), are semicircular in vertical section and are respectively used for limiting and fixing the upper side and the lower side of the clamping ring (102).

3. The improved graphite furnace atomic absorption spectrophotometer of claim 2, wherein: the circular placing grooves (202) are uniformly arranged on the upper surface of the circular plate body (201) at intervals according to a circumferential arrangement mode, a temporary placing groove (205) for temporarily placing a sample bottle in use is arranged at the middle position on the upper surface of the circular plate body (201), an elastic ring (206) for inwards clamping the sample bottle is arranged on the inner ring surface of the circular placing groove (202), and an annular side groove (207) for clamping and installing the dustproof cover plate unit (3) is arranged on the upper surface of the circular plate body (201).

4. The improved graphite furnace atomic absorption spectrophotometer of claim 3, wherein: the dustproof cover plate unit (3) comprises a circular cover body (301) with an inverted U-shaped vertical section and inserted into the annular side groove (207), and an inverted U-shaped handle (302) arranged on the upper surface of the circular cover body (301).

5. The improved graphite furnace atomic absorption spectrophotometer of claim 4, wherein: the number of the inverted U-shaped grips (302) is two, and the grips are used for supporting and fixing when the circular cover body (301) is placed with the opening facing upwards.

6. The improved graphite furnace atomic absorption spectrophotometer of claim 4, wherein: the dustproof cover plate unit (3) further comprises a side U-shaped grip (303) which is arranged on the outer annular surface of the circular cover body (301) and used for carrying out side holding and lifting when the opening of the circular cover body (301) is placed upwards.

7. The improved graphite furnace atomic absorption spectrophotometer of claim 2, wherein: the friction plate unit (4) comprises a protruding ring (401) which is arranged on the upper surface of the outer side end of the protruding plate (13) and in sleeved position relation with the hollow cylinder (101), and a protruding block (402) which is arranged on the lower surface of the circular plate body (201) and is used for reducing the rotating speed of the circular plate body (201) in a sliding friction mode on the protruding ring (401).

8. The improved graphite furnace atomic absorption spectrophotometer of claim 7, wherein: the friction plate unit (4) further comprises a head groove (403) arranged on the upper end face of the hollow cylinder (101), and an in-groove elastic plate (404) arranged on the head groove (403) and used for reducing the rotating speed of the circular plate body (201) in a clamping mode with the end face of the inner side of the mounting groove (203).

9. The improved graphite furnace atomic absorption spectrophotometer of claim 5, wherein: the two inverted U-shaped grips (302) are arranged in parallel.

10. The improved graphite furnace atomic absorption spectrophotometer of claim 3, wherein: the depth of the temporary mounting groove (205) is smaller than that of the circular mounting groove (202).