Automatic sample injector of flame atom spectrophotometer

Abstract

The utility model relates to an automatic sample injector of a flame atom spectrophotometer, which belongs to the technical field of auxiliary equipment of the flame atom spectrophotometer and comprises an operation panel, a flame atom spectrophotometer body is fixedly mounted at the top of the operation panel, an automatic sample injection mechanism for automatically injecting samples is mounted at the top of the operation panel, and the flame atom spectrophotometer body is fixedly mounted at the bottom of the operation panel. The automatic sample injection mechanism comprises a mounting plate which is placed at the top of the operation panel in an abutting manner, a sample injection assembly which is mounted at the top of the mounting plate, and a lifting assembly which is mounted at the top of the mounting plate and is matched with the sample injection assembly to work; the sample injection assembly comprises a fixed box fixed at the top of the mounting plate and a first driving mechanism fixedly mounted on the inner side of the fixed box. The automatic sample injector of the flame atom spectrophotometer can automatically inject and discharge a sample, and can also automatically wash the sample injection pipe, so that the sample of the flame atom spectrophotometer can be conveniently and quickly detected.

Description

Technical Field

[0001] The present application relates to the technical field of flame atomic spectrophotometer auxiliary equipment, in particular to an automatic sample injector for a flame atomic spectrophotometer. Background Art

[0002] Flame spectrophotometers are widely used in clinical testing and pathological research in medical and health care. They are also suitable for the determination of potassium, sodium, lithium, and calcium in agriculture, industry, and food industries, and have the function of detecting lithium salts taken by mental patients.

[0003] When using a flame spectrophotometer for operation, most of the operations are performed manually, and the sample injection tube of the flame spectrophotometer needs to be held and inserted into a sample test tube. After the extraction test is completed, the sample injection tube is pulled out, properly rinsed, and then inserted into the next sample test tube. This operation method is very inconvenient when there are many sample test tubes to be tested, and the repeated operations will undoubtedly consume a lot of energy. In this regard, the present application provides an automatic sample injector for a flame atomic spectrophotometer to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a flame atomic spectrophotometer automatic sample injector, which has the advantages of automatic sample injection and sample output, and solves the shortcomings of the existing flame spectrophotometer that most of the actual operation is done manually, there are many repetitive operations, and it consumes a lot of energy of the operator.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automatic sample injector for a flame atomic spectrophotometer, comprising an operation panel, a flame atomic spectrophotometer body is fixedly mounted on the top of the operation panel, and an automatic sample injection mechanism for automatic sample injection is mounted on the top of the operation panel;

[0006] The automatic sample injection mechanism comprises a mounting plate placed against the top of the operation panel, a sample injection assembly mounted on the top of the mounting plate, and a lifting assembly mounted on the top of the mounting plate and cooperating with the sample injection assembly;

[0007] The sampling assembly includes a fixed box fixed to the top of the mounting plate, a first driving mechanism fixedly installed on the inner side of the fixed box, a support column rotatably connected to the inner bottom wall of the fixed box through a bearing, a driven wheel fixed to the outer side of the support column, a driving wheel fixedly installed on the output shaft of the first driving mechanism, a sampling tray fixed to the top of the support column, and a test tube rack fixedly installed on the top of the sampling tray and evenly distributed.

[0008] By adopting the above technical solution, the sample can be automatically introduced and discharged, so that the sample of the flame atomic spectrophotometer can be conveniently and quickly tested, and the degree of automation in the detection process of the device is also improved.

[0009] Furthermore, the lifting assembly includes a flushing box fixed on the top of the mounting plate, a lifting box fixed on the top of the mounting plate, a second driving mechanism fixedly installed on the top of the lifting box, a screw rod rotatably connected to the inner side of the lifting box through a bearing, a limiting rod fixed on the inner side of the lifting box, a slider threadedly connected to the outer side of the screw rod, a movable plate fixed on the left side of the slider, an electric telescopic rod fixedly installed on the top of the movable plate, a connecting block fixed to the output shaft of the electric telescopic rod, a positioning rod fixed on the left side of the connecting block, two limiting sleeves fixed on the outer side of the positioning rod, an injection tube body inserted between the inner sides of the two limiting sleeves, a flushing pipe fixed on the back of the flushing box, a drain pipe fixed on the back of the flushing box, and a small water pump fixedly installed on the outer side of the flushing pipe.

[0010] By adopting the above technical solution, the sampling tube can be automatically flushed, and the sampling tube can be removed from or inserted into the sample test tube.

[0011] Furthermore, a movable hole for the connection block to move is provided on the left side of the flushing box, a connecting hole for the electric telescopic rod to move is provided on the right side of the flushing box, and the left side of the lifting box is open.

[0012] By adopting the above technical solution, the electric telescopic rod and the connecting block can be normally lifted, adjusted and moved.

[0013] Furthermore, the output shaft of the second driving mechanism passes through the top of the lifting box and is fixedly connected to the top of the screw rod, and the bottom end of the limiting rod passes through the top of the sliding block.

[0014] By adopting the above technical solution, the second driving mechanism can drive the screw rod to rotate, so that the slider can be driven by the screw rod to move up and down under the limiting action of the limiting rod.

[0015] Furthermore, the other end of the injection tube body is connected to the flame atomic spectrophotometer body, the top of the limiting sleeve is open, and the two limiting sleeves are correspondingly distributed up and down.

[0016] By adopting the above technical solution, the flame atomic spectrophotometer body can extract the sample inside the sample tube through the injection tube body, so that the injection tube body can be stably inserted between the inner sides of the two limiting sleeves.

[0017] Furthermore, one front end of the flushing pipe passes through the back of the flushing box, and one front end of the flushing pipe is located above the inside of the flushing box and tilted downward.

[0018] By adopting the above technical solution, the flushing solution discharged from the inside of the flushing tube can be discharged to the outside of the injection tube body.

[0019] Furthermore, the top of the support column passes through the top of the fixed box, the sample introduction plate is located on the top of the fixed box, and the right side of the driving wheel and the left side of the driven wheel are meshed with each other.

[0020] By adopting the above technical solution, the sample feeding plate can be rotated on the top of the fixed box, so that the driving wheel can drive the driven wheel to rotate.

[0021] Furthermore, the test tube rack comprises a placement box fixedly connected to the top of the sample introduction tray, the top of the placement box is fixedly connected to four vertical poles, and a placement sleeve is fixedly connected between the top ends of the four vertical poles.

[0022] By adopting the above technical solution, the sample test tube can be conveniently inserted and placed through the cooperation between the placement box, the vertical rod and the placement sleeve.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The flame atomic spectrophotometer automatic sampler can automatically inject and discharge samples through the coordinated use of the injection assembly and the lifting assembly on the top of the operation panel, and can also automatically flush the injection tube, so that the samples of the flame atomic spectrophotometer can be conveniently and quickly tested, which greatly reduces the repeated operations performed by the operator, thereby saving the operator's energy, and also improves the degree of automation in the device detection process, which is very convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 For this application structure Figure 1 A cross-sectional view of the connection structure of the automatic injection mechanism;

[0027] Figure 3 For this application structure Figure 2 A partial enlarged schematic diagram of the middle part;

[0028] Figure 4 For this application structure Figure 2 A three-dimensional schematic diagram of the connection structure of the middle flushing box;

[0029] Figure 5 For this application structure Figure 2 Top view of the connection structure of the sample tray.

[0030] In the figure: 1. operation panel; 2. flame atomic spectrophotometer body; 300. automatic sampling mechanism; 4. mounting plate; 500. sampling assembly; 501. fixing box; 502. first driving mechanism; 503. supporting column; 504. driven wheel; 505. driving wheel; 506. sampling tray; 507. test tube rack; 600. lifting assembly; 601. flushing box; 602. lifting box; 603. second driving mechanism; 604. screw rod; 605. limiting rod; 606. slider; 607. moving plate; 608. electric telescopic rod; 609. connecting block; 610. positioning rod; 611. limiting sleeve; 612. sampling tube body; 613. flushing tube; 614. drain pipe; 615. small water pump. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0032] See also Figure 1-5 The present application provides a technical solution: an automatic sample injector for a flame atomic spectrophotometer, comprising an operation panel 1, a flame atomic spectrophotometer body 2 is fixedly mounted on the top of the operation panel 1, and an automatic sample injection mechanism 300 for automatic sample injection is mounted on the top of the operation panel 1; through the coordinated use of the sample injection assembly 500 and the lifting assembly 600 on the top of the operation panel 1, the sample can be automatically injected and discharged, and the sample injection tube can be automatically flushed, so that the sample of the flame atomic spectrophotometer can be conveniently and quickly tested, which greatly reduces the repeated operations performed by the operator, thereby saving the operator's energy, and also improves the degree of automation in the device detection process, which is very convenient and practical.

[0033] It should be noted that the flame atomic spectrophotometer body 2 is an analytical instrument that uses emission spectroscopy as the basic principle. It uses flame as the excitation light source and applies a photoelectric detection system to measure the radiation intensity emitted when the excited element returns to the ground state from the excited state. The element type and its content are determined based on its characteristic spectrum and light wave intensity. It is an existing public device, and its function and principle are all existing technologies, so it will not be elaborated in detail.

[0034] In this embodiment, the automatic sample injection mechanism 300 is a structure for automatic sample injection and automatic flushing of the sample injection tube.

[0035] like Figure 1 and Figure 2As shown, the automatic sampling mechanism 300 includes a mounting plate 4 placed against the top of the operation panel 1, a sampling assembly 500 mounted on the top of the mounting plate 4, and a lifting assembly 600 mounted on the top of the mounting plate 4 and cooperating with the sampling assembly 500.

[0036] It should be noted that the automatic sample introduction mechanism 300 needs to be placed beside the flame atomic spectrophotometer body 2 before operation.

[0037] In this embodiment, the sample injection assembly 500 is a structure for automatic sample injection and automatic sample discharge after sample extraction is completed.

[0038] like Figure 1 , Figure 2 and Figure 5 As shown, the sampling assembly 500 includes a fixed box 501 fixed to the top of the mounting plate 4, a first driving mechanism 502 fixedly installed on the inner side of the fixed box 501, a support column 503 rotatably connected to the inner bottom wall of the fixed box 501 through a bearing, a driven wheel 504 fixed to the outer side of the support column 503, a driving wheel 505 fixedly installed on the output shaft of the first driving mechanism 502, a sampling tray 506 fixed to the top of the support column 503, and a test tube rack 507 fixedly installed on the top of the sampling tray 506 and evenly distributed.

[0039] It should be noted that the top of the support column 503 passes through the top of the fixed box 501, and the sample tray 506 is located at the top of the fixed box 501, so that the sample tray 506 can rotate on the top of the fixed box 501, and the right side of the driving wheel 505 and the left side of the driven wheel 504 are meshed with each other, so that the driving wheel 505 can drive the driven wheel 504 to rotate.

[0040] In addition, the test tube rack 507 includes a placement box fixedly connected to the top of the sample tray 506, the top of the placement box is fixedly connected to four vertical poles, and a placement sleeve is fixedly connected between the tops of the four vertical poles. The cooperation between the placement box, the vertical poles and the placement sleeve can facilitate the insertion and placement of sample test tubes.

[0041] In this embodiment, the lifting assembly 600 is a structure for automatically inserting and removing the sample injection tube and flushing it.

[0042] like Figure 2 , Figure 3 and Figure 4As shown, the lifting assembly 600 includes a flushing box 601 fixed to the top of the mounting plate 4, a lifting box 602 fixed to the top of the mounting plate 4, a second driving mechanism 603 fixedly installed on the top of the lifting box 602, a screw rod 604 rotatably connected to the inner side of the lifting box 602 through a bearing, a limit rod 605 fixed to the inner side of the lifting box 602, a slider 606 threadedly connected to the outer side of the screw rod 604, a moving plate 607 fixed to the left side of the slider 606, and a second driving mechanism 603 fixedly installed on the top of the lifting box 602. The electric telescopic rod 608 at the top, the connecting block 609 fixed to the output shaft of the electric telescopic rod 608, the positioning rod 610 fixed to the left side of the connecting block 609, the two limiting sleeves 611 fixed to the outside of the positioning rod 610, the injection tube body 612 inserted between the inner sides of the two limiting sleeves 611, the flushing pipe 613 fixed to the back of the flushing box 601, the drainage pipe 614 fixed to the back of the flushing box 601, and the small water pump 615 fixedly installed on the outside of the flushing pipe 613.

[0043] It should be noted that a movable hole for the connection block 609 to move is opened on the left side of the flushing box 601, a connecting hole for the electric telescopic rod 608 to move is opened on the right side of the flushing box 601, and the left side of the lifting box 602 is open, so that the electric telescopic rod 608 and the connection block 609 can be lifted, adjusted and moved normally.

[0044] In addition, the output shaft of the second driving mechanism 603 passes through the top of the lifting box 602 and is fixedly connected to the top of the screw rod 604, so that the second driving mechanism 603 can drive the screw rod 604 to rotate, and the bottom end of the limiting rod 605 passes through the top of the slider 606, so that the slider 606 can be driven by the screw rod 604 to move up and down under the limiting action of the limiting rod 605.

[0045] At the same time, the other end of the sampling tube body 612 is connected to the flame atomic spectrophotometer body 2, so that the flame atomic spectrophotometer body 2 can extract the sample inside the sample tube through the sampling tube body 612. The top of the limiting sleeve 611 is open, and the two limiting sleeves 611 are correspondingly distributed up and down, so that the sampling tube body 612 can be stably inserted between the inner sides of the two limiting sleeves 611.

[0046] In addition, the front end of the flushing tube 613 passes through the back of the flushing box 601, and the front end of the flushing tube 613 is located above the inside of the flushing box 601 and tilted downward. The sampling tube body 612 can be moved to the front of the flushing tube 613, so that the flushing solution discharged from the inside of the flushing tube 613 can be discharged to the outside of the sampling tube body 612, so that the flushing solution can flow downward along the sampling tube body 612, wherein the flushing tube 613 and the drain pipe 614 are both hoses, and the tube end of the flushing tube 613 can be placed inside a bottle filled with flushing solution and extracted by a small water pump 615. The other end of the drain pipe 614 can be placed in a washbasin or a bottle for collection, and it is necessary to ensure that the bottle for collection is located below the flushing box 601 so that the water flow can be transported downward normally.

[0047] The working principle of the above embodiment is:

[0048] When performing sample testing, a test tube containing a sample is placed on the inner side of each test tube rack 507, and the first driving mechanism 502 is started to drive the active wheel 505 to rotate, thereby driving the driven wheel 504 to rotate, so that the support column 503 is selected, so that the sample tray 506 can rotate on the top of the fixed box 501, so that the top test tube rack 507 can move to the bottom of the sample tube body 612 at a uniform speed, and the second driving mechanism 603 is started to drive the screw rod 604 to rotate, and the outer thread of the screw rod 604 is selected to drive the slider 606 to move up and down under the thrust of the thrust, so that the electric telescopic rod 608 can be lifted and moved, so that the positioning rod 610 drives the sample tube body 612 to be inserted into the inside of the corresponding sample test tube, and the flame atomic spectrophotometer body 2 is started to pass through the sample tube body 612 extracts the sample from the sample tube for testing. After the extraction is completed, the second driving mechanism 603 is started, and the slider 606 is driven to rise through the rotation of the screw rod 604, so that the sampling tube body 612 is moved away from the inside of the corresponding sample tube, and the electric telescopic rod 608 is started to move the sampling tube body 612 to the inside of the flushing box 601, and the small water pump 615 is started to discharge the flushing solution through the flushing tube 613, thereby flushing the sampling tube body 612 and the positioning rod 610. The flushed liquid will be discharged through the drain pipe 614 at the bottom, and the first driving mechanism 502 is started to drive the sampling disk 506 to rotate, and the above operation can be repeated to realize the functions of automatic sampling and discharging as well as automatic flushing and insertion, so that the operator only needs to collect the sample tube after the extraction is completed.

[0049] Compared with the prior art, the flame atomic spectrophotometer automatic sampler can automatically inject and discharge samples through the coordinated use of the injection assembly 500 and the lifting assembly 600 on the top of the operation panel 1, and can also automatically flush the injection tube, so that the samples of the flame atomic spectrophotometer can be conveniently and quickly tested, which greatly reduces the repeated operations performed by the operator, thereby saving the operator's energy and improving the degree of automation in the device detection process. It is very convenient and practical, and solves the shortcomings of the existing flame spectrophotometer that most of the actual operations are performed manually, there are many repeated operations, and a lot of energy of the operator is consumed.

[0050] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The provision of power supply is common knowledge in the field. The main controller can be a conventional known device for control such as a computer, which can be realized through simple programming by technicians in the field. They are all existing public power connection technologies and will not be described in detail in the article.

Claims

1. A flame atomic spectrophotometer automatic sample injector, comprising an operation panel (1), Features: A flame atomic spectrophotometer body (2) is fixedly mounted on the top of the operation panel (1), and an automatic sampling mechanism (300) for automatic sampling is mounted on the top of the operation panel (1); The automatic sample injection mechanism (300) comprises a mounting plate (4) placed against the top of the operation panel (1), a sample injection assembly (500) mounted on the top of the mounting plate (4), and a lifting assembly (600) mounted on the top of the mounting plate (4) and cooperating with the sample injection assembly (500); The sample injection assembly (500) comprises a fixed box (501) fixed to the top of the mounting plate (4), a first driving mechanism (502) fixedly mounted on the inner side of the fixed box (501), a support column (503) rotatably connected to the inner bottom wall of the fixed box (501) via a bearing, a driven wheel (504) fixed to the outer side of the support column (503), a driving wheel (505) fixedly mounted on the output shaft of the first driving mechanism (502), a sample injection tray (506) fixed to the top of the support column (503), and a test tube rack (507) fixedly mounted on the top of the sample injection tray (506) and evenly distributed.

2. The flame atomic spectrophotometer automatic sample injector according to claim 1, Features: The lifting assembly (600) comprises a flushing box (601) fixed to the top of the mounting plate (4), a lifting box (602) fixed to the top of the mounting plate (4), a second driving mechanism (603) fixedly mounted on the top of the lifting box (602), a screw rod (604) rotatably connected to the inner side of the lifting box (602) via a bearing, a limiting rod (605) fixed to the inner side of the lifting box (602), a slider (606) threadedly connected to the outer side of the screw rod (604), a moving plate (607) fixedly mounted on the left side of the slider (606), and a second driving mechanism (603) fixedly mounted on the top of the lifting box (602). 7) An electric telescopic rod (608) at the top, a connecting block (609) fixed to the output shaft of the electric telescopic rod (608), a positioning rod (610) fixed to the left side of the connecting block (609), two limiting sleeves (611) fixed to the outside of the positioning rod (610), an injection tube body (612) inserted between the inner sides of the two limiting sleeves (611), a flushing pipe (613) fixed to the back of the flushing box (601), a drainage pipe (614) fixed to the back of the flushing box (601), and a small water pump (615) fixedly installed on the outside of the flushing pipe (613).

3. The flame atomic spectrophotometer automatic sample injector according to claim 2, Features: The left side of the flushing box (601) is provided with a movable hole for the connection block (609) to move, the right side of the flushing box (601) is provided with a connecting hole for the electric telescopic rod (608) to move, and the left side of the lifting box (602) is open.

4. The flame atomic spectrophotometer automatic sample injector according to claim 2, Features: The output shaft of the second driving mechanism (603) passes through the top of the lifting box (602) and is fixedly connected to the top of the screw rod (604), and the bottom end of the limiting rod (605) passes through the top of the sliding block (606).

5. The flame atomic spectrophotometer automatic sample injector according to claim 2, Features: The other end of the sample injection tube body (612) is connected to the flame atomic spectrophotometer body (2), the top of the limiting sleeve (611) is open, and the two limiting sleeves (611) are correspondingly distributed up and down.

6. The flame atomic spectrophotometer automatic sample injector according to claim 2, Features: The front end of the flushing pipe (613) passes through the back of the flushing box (601), and the front end of the flushing pipe (613) is located above the inside of the flushing box (601) and is inclined downward.

7. The flame atomic spectrophotometer automatic sample injector according to claim 1, Features: The top of the support column (503) passes through the top of the fixed box (501), the sample introduction plate (506) is located on the top of the fixed box (501), and the right side of the driving wheel (505) and the left side of the driven wheel (504) are meshed with each other.

8. The flame atomic spectrophotometer automatic sample injector according to claim 1, Features: The test tube rack (507) comprises a placement box fixedly connected to the top of the sample injection tray (506), the top of the placement box is fixedly connected to four vertical poles, and a placement sleeve is fixedly connected between the top ends of the four vertical poles.

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