Cleaning tool for graphite tube of atomic absorption spectrum analyzer

Abstract

The utility model discloses a graphite tube cleaning tool for an atomic absorption spectrum analyzer, which relates to the technical field of cleaning tools and comprises an expansion element, a connecting tube and a cleaning element, the expansion element is detachably connected to a first end of the connecting tube, and a second end of the connecting tube is detachably connected to a first end of the cleaning element. The expansion element, the connecting pipe and the cleaning element are sequentially communicated, the cleaning element is used for stretching into the graphite pipe through the small hole of the graphite pipe, the cleaning element can deform and clean the inner wall of the graphite pipe, and the expansion element can suck out sundries in the graphite pipe. The cleaning device is simple and convenient to clean, time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning tool technical field, especially a kind of graphite tube cleaning tool of atomic absorption spectrometer. BACKGROUND

[0002] Graphite tube is usually made of high-purity, high-strength, high-density high-quality graphite material. For ELC type graphite tube, during instrument use, carbon deposition and impurity attachment may occur inside graphite furnace due to many reasons such as complex sample matrix composition, high sample acidity, sample injection needle deviation, insufficient argon purity or pressure, etc. Pollution is the main cause of graphite furnace failure, therefore, it is necessary to carefully clean and maintain the graphite tube.

[0003] Among them, the graphite tube is cleaned at least once a week, and the current cleaning tool is a cotton swab, a soft cloth and an ear sucker. The cleaning and maintenance steps are: disassemble the instrument, take out the graphite tube, then use the soft cloth to dip the cleaner to wipe the outer surface of the graphite furnace head, then use the cotton swab to dip the cleaner to wipe the inner surface of the graphite tube, and finally use the ear sucker to dry. It has the disadvantages of complicated steps, time-consuming and laborious cleaning. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of graphite tube cleaning tool of atomic absorption spectrometer to solve the problems existing in the prior art, make cleaning simple and convenient, save time and effort.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a kind of graphite tube cleaning tool of atomic absorption spectrometer, including expansion element, connecting pipe and cleaning element, the expansion element can be detachably connected to the first end of the connecting pipe, the second end of the connecting pipe can be detachably connected to the first end of the cleaning element, the expansion element, the connecting pipe and the cleaning element are sequentially communicated, the cleaning element is used to extend into the graphite tube through the small hole of the graphite tube, and the cleaning element can be deformed and clean the inner wall of the graphite tube, the expansion element can suck out the impurities in the graphite tube.

[0007] Preferably, the expansion element is a gas bag made of rubber material.

[0008] Preferably, before the cleaning element extends into the graphite tube, the gas bag is in a squeezed and contracted state, and after the cleaning of the inner wall of the graphite tube is completed, the gas bag is in an expanded state.

[0009] Preferably, the connecting pipe is made of rigid material.

[0010] Preferably, the cleaning element is provided with bristles on the outer periphery.

[0011] Preferably, the cleaning element comprises two cleaning rods of the same structure, the length direction of the cleaning rods is consistent with the length direction of the connecting pipe, the two cleaning rods are symmetrically arranged along the extension line of the axis of the connecting pipe, one end of the two cleaning rods is connected to the second end of the connecting pipe, and the two cleaning rods can be rotated to be perpendicular to the connecting pipe, and the outer periphery of the two cleaning rods is provided with the bristles.

[0012] Preferably, the cleaning rod is made of elastic material.

[0013] Preferably, the second end of the connecting pipe forms a dust suction port, and the dust suction port is located inside the graphite pipe when cleaning the inside of the graphite pipe.

[0014] The utility model discloses relative to prior art has obtained following technical effect:

[0015] The utility model discloses a graphite tube cleaning tool of atomic absorption spectrometer, the expansion element can detachably connect in the first end of connecting pipe, the second end of connecting pipe can detachably connect in the first end of cleaning element, and then the installation and dismounting between each structure are convenient, and the expansion element, connecting pipe and cleaning element are communicated gradually, can realize the carbon deposit and impurity etc. in the graphite tube are exported, the cleaning element is used to insert into the graphite tube through the small hole of graphite tube, and the cleaning element can deform and clean the inner wall of graphite tube to scrape the carbon deposit and impurity etc. adhered to the inner wall of graphite tube, and then only when the instrument is idle, the in-situ cleaning of the inside of graphite tube can be completed, the graphite tube cleaning maintenance time and step are reduced, the cleaning process is simplified, the expansion element can suck out the impurity in the graphite tube, and then through the suction action of expansion element, under the action of negative pressure, the carbon deposit and impurity etc. are sucked into the expansion element through connecting pipe, realize the collection of the impurity in the graphite tube, then through extruding expansion element again, the impurity in the expansion element can be discharged, when needing, still can realize the cleaning of graphite tube cleaning tool of atomic absorption spectrometer through the mode of dismounting expansion element and connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0017] Fig. 1 It is the structure schematic diagram of graphite tube cleaning tool of atomic absorption spectrometer in the utility model;

[0018] Fig. 2 Figure is a schematic diagram of the graphite tube cleaning tool for atomic absorption spectrometer in use of the utility model;

[0019] In the figure: 1-expansion element, 2-connection pipe, 3-dust suction port, 4-cleaning rod, 5-brush. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] The utility model aims at providing a kind of graphite tube cleaning tool for atomic absorption spectrometer to solve the problems existing in prior art, make cleaning simple and convenient, save time and effort.

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0023] As shown in Figs. 1-2 The utility model provides a kind of graphite tube cleaning tool for atomic absorption spectrometer, including expansion element 1, connection pipe 2 and cleaning element, expansion element 1 can be detachably connected to the first end of connection pipe 2, the second end of connection pipe 2 can be detachably connected to the first end of cleaning element, in turn facilitate the installation and disassembly between structures, expansion element 1, connection pipe 2 and cleaning element are communicated in turn, can realize the carbon deposit and impurity etc. in graphite tube are exported, cleaning element is used to be inserted into graphite tube through the small hole of graphite tube, cleaning element can be deformed and clean the inner wall of graphite tube, to scrape the carbon deposit and impurity etc. adhered to the inner wall of graphite tube, in turn, without disassembling instrument and taking out graphite tube, just when instrument is idle, in-situ cleaning of graphite tube interior can be completed, reduce graphite tube cleaning maintenance time and step, simplify cleaning process, expansion element 1 can suck out the sundries in graphite tube, in turn, through the suction action of expansion element 1, under the action of negative pressure, carbon deposit and impurity etc. sundries are sucked into expansion element 1 through connection pipe 2, realize the collection of sundries in graphite tube, then through extruding expansion element 1 again, the sundries in expansion element 1 can be discharged, when needed, through the mode of disassembling expansion element 1 and connection pipe 2, the cleaning of graphite tube cleaning tool for atomic absorption spectrometer in the embodiment can be realized.

[0024] Specifically, expansion element 1 is air bag, air bag is made of rubber material, in turn, through extruding and loosening air bag, realize the air suction expansion and air release contraction of air bag.

[0025] Before the cleaning element extends into the graphite tube, the air bag is pressed to make the air bag in a pressed and contracted state, and at the same time, the cleaning element extends into the graphite tube through the small hole on the graphite tube to clean the inner wall of the graphite tube and make the impurities adhered to the inner wall of the graphite tube fall off, and then the air bag is released to reset the air bag to the inflated state, and at the same time, under the action of negative pressure, the impurities in the graphite tube are sucked into the air bag to realize the cleaning and collection of the impurities.

[0026] The connecting pipe 2 is made of rigid material and can play a good supporting and flow guiding role.

[0027] The outer periphery of the cleaning element is provided with bristles 5, and the cleaning effect on the inner wall of the graphite tube can be improved through the arrangement of the bristles 5.

[0028] The cleaning element includes two cleaning rods 4 which are identical in structure, the length direction of the cleaning rod 4 is consistent with the length direction of the connecting pipe 2, and the two cleaning rods 4 are symmetrically arranged along the axis extension line of the connecting pipe 2, one end of the two cleaning rods 4 is connected to the second end of the connecting pipe 2, and the two cleaning rods 4 can be rotated to be perpendicular to the connecting pipe 2, and the outer periphery of the two cleaning rods 4 is provided with bristles 5, and in the natural state, the two cleaning rods 4 are in a symmetrical state, and the length direction of the cleaning rod 4 is consistent with the length direction of the connecting pipe 2, after the two cleaning rods 4 are synchronously extended into the graphite tube, due to the fact that the extension direction of the graphite tube is perpendicular to the extension direction of the connecting pipe 2, the two cleaning rods 4 are rotated compared with the connecting pipe 2 until the two cleaning rods 4 can extend to the two ends of the small hole respectively to realize the cleaning of the inner wall of the graphite tube.

[0029] In order to realize the rotation of the cleaning rod 4, the cleaning rod 4 can be made of elastic material, so that the cleaning rod 4 can adapt to the extension direction of the graphite tube and clean the inner wall of the graphite tube, and after the cleaning is completed, the cleaning rod 4 can be reset under the action of elastic restoring force.

[0030] The cleaning rod 4 can also be rotationally connected with the connecting pipe 2, so that the cleaning rod 4 can also clean the inner wall of the graphite tube.

[0031] The second end of the connecting pipe 2 forms a dust suction port 3, and when the graphite tube is cleaned, the dust suction port 3 is located inside the graphite tube, so that when the inflation element 1 is acted on, the impurities in the graphite tube can enter the connecting pipe 2 and the inflation element 1 in sequence through the dust suction port 3.

[0032] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A graphite tube cleaning tool for an atomic absorption spectrometer, characterized by: The device comprises an expansion element, a connecting pipe and a cleaning element, the expansion element is detachably connected to the first end of the connecting pipe, the second end of the connecting pipe is detachably connected to the first end of the cleaning element, the expansion element, the connecting pipe and the cleaning element are communicated in sequence, the cleaning element is used to extend into the graphite pipe through the small hole of the graphite pipe, the cleaning element can be deformed and clean the inner wall of the graphite pipe, and the expansion element can suck out the impurities in the graphite pipe.

2. The graphite tube cleaning tool for an atomic absorption spectrometer of claim 1, wherein: The expansion element is an air bag made of rubber material.

3. The graphite tube cleaning tool for an atomic absorption spectrometer of claim 2, wherein: Before the cleaning element extends into the graphite pipe, the air bag is in a squeezed and contracted state, and after the cleaning of the inner wall of the graphite pipe is completed, the air bag is in an expanded state.

4. The graphite tube cleaning tool for atomic absorption spectrometers of claim 1, wherein: The connecting pipe is made of rigid material.

5. The graphite tube cleaning tool for atomic absorption spectrometers of claim 1, wherein: The outer periphery of the cleaning element is provided with bristles.

6. The graphite tube cleaning tool for an atomic absorption spectrometer of claim 5, wherein: The cleaning element comprises two cleaning rods with the same structure, the length direction of the cleaning rod is consistent with the length direction of the connecting pipe, the two cleaning rods are symmetrically arranged along the axis extension line of the connecting pipe, one end of the two cleaning rods is connected to the second end of the connecting pipe, the two cleaning rods can be rotated to be perpendicular to the connecting pipe, and the outer periphery of the two cleaning rods is provided with the bristles.

7. The graphite tube cleaning tool for an atomic absorption spectrometer of claim 6, wherein: The cleaning rod is made of elastic material.

8. The graphite tube cleaning tool for atomic absorption spectrometers of claim 1, wherein: The second end of the connecting pipe forms a dust suction port, and when the graphite pipe is cleaned, the dust suction port is located in the graphite pipe.

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