Rotary digestion colorimetric tube absorbance detection device

Abstract

The utility model provides a rotary digestion colorimetric tube absorbance detection device, and relates to the technical field of absorbance detection, the rotary digestion colorimetric tube absorbance detection device comprises a base, a sample disc is rotatably connected above the base, the sample disc is provided with a plurality of colorimetric tube insertion holes along the circumferential direction, and colorimetric tubes are inserted into the colorimetric tube insertion holes; the driving mechanism is connected with the base, and the driving mechanism is used for driving the sample disc to rotate; the detector is arranged above the base; the light source emitting part is arranged above the base, and light emitted by the light source emitting part can penetrate through the colorimetric tube inserted in the colorimetric tube insertion hole and is received by the detector; the problems that in the prior art, when absorbance detection is carried out, only the absorbance of a tested solution in one digestion colorimetric tube can be measured at a time, and the detection efficiency is low are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of absorbance detection, and more specifically relates to a rotary digestion colorimetric tube absorbance detection device. Background Art

[0002] Chemical oxygen demand (COD) analysis methods in standards such as HJ / T 399 and GB / T 14420 include two main steps: heating digestion and absorbance measurement. Typical domestic and imported COD analyzers both consist of a multi-well heating digester and a single-well photometric detector. These instruments can only measure the absorbance of the test solution in one digestion colorimetric tube at a time, resulting in low efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a rotary digestion colorimetric tube absorbance detection device to address the deficiencies in the prior art, thereby solving the problem in the prior art that, when performing absorbance detection, only the absorbance of the test liquid in one digestion colorimetric tube can be measured at a time, resulting in low detection efficiency.

[0004] In order to achieve the above object, the utility model provides a rotary digestion colorimetric tube absorbance detection device, comprising:

[0005] A base, wherein a sample tray is rotatably connected to the top of the base, and the sample tray is provided with a plurality of colorimetric tube insertion holes along its circumference, and the colorimetric tube insertion holes are used to insert colorimetric tubes;

[0006] A driving mechanism, the driving mechanism being connected to the base and configured to drive the sample tray to rotate;

[0007] a detector, the detector being arranged above the base;

[0008] A light source emitting component is provided above the base, and the light emitted by the light source emitting component can pass through the colorimetric tube inserted in the colorimetric tube socket and be received by the detector.

[0009] Optionally, a serial number marking plate is provided on the top of the sample plate, and the serial number marking plate is provided with a plurality of avoidance holes, and the avoidance holes are used to accommodate the colorimetric tubes to pass through, and a serial number mark is provided on one side of each avoidance hole.

[0010] Optionally, the sample tray includes a tray body and at least one ring body spaced apart below the tray body, the tray body is connected to the ring bodies by pillars, a limiting groove is provided on the upper side of the ring body at the bottom, the limiting groove is used to limit the lower end of the colorimetric tube, and the colorimetric tube jack on the tray body and the limiting groove on the ring body are provided in a one-to-one correspondence.

[0011] Optionally, the light source emitting component is arranged inside the ring body, and the detector is arranged outside the ring body.

[0012] Optionally, a rotating shaft is provided in the middle of the sample tray, and the driving mechanism includes a driving motor and a driving shaft, the driving motor is used to drive the driving shaft to rotate, and the upper end of the driving shaft is detachably connected to the lower end of the rotating shaft.

[0013] Optionally, a driving disk is connected to the outer periphery of the driving shaft, a positioning pin is provided on the driving disk, and a positioning hole is provided on one side of the rotating shaft on the sample disk, and the positioning hole is used to insert the positioning pin.

[0014] Optionally, the upper end of the rotating shaft extends out of the top of the sample tray to form a handheld portion.

[0015] Optionally, two detectors are provided, and a semi-transparent and semi-reflective mirror is provided above the base. The light passes through the semi-transparent and semi-reflective mirror and is received by the two detectors.

[0016] Optionally, a mounting bracket is provided above the base, and the detector is connected to the mounting bracket.

[0017] Optionally, it further includes a shell, which is arranged on the outside of the rotary digestion colorimetric tube absorbance detection device, the base is connected to the shell, and a through hole is opened on the shell, and the through hole can accommodate the sample disk to pass vertically.

[0018] The rotary digestion colorimetric tube absorbance detection device provided by the utility model has the beneficial effects that: the rotary digestion colorimetric tube absorbance detection device is provided with a rotatable sample tray above the base, and multiple colorimetric tubes filled with test liquids that have undergone the digestion process can be simultaneously inserted into multiple colorimetric tube jacks on the sample tray, and are driven by a driving mechanism to rotate along with the sample tray. As the sample tray rotates, the light emitted by the light source emitting component passes through each colorimetric tube in turn and is received by the detector, thereby realizing absorbance detection. The absorbance of the test liquids in multiple colorimetric tubes can be continuously detected, and there is no need to place them one by one in a single-hole photometric detector and detect them one by one as in the prior art, which can improve detection efficiency.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0021] Figure 1 A three-dimensional structural schematic diagram of a rotary digestion colorimetric tube absorbance detection device from one viewing angle is shown according to an embodiment of the utility model.

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a rotary digestion colorimetric tube absorbance detection device from another perspective is shown according to an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Base; 2. Sample tray; 3. Colorimetric tube socket; 4. Covered digestion colorimetric tube; 5. Open digestion colorimetric tube; 6. Drive motor; 7. Detector; 8. Light source emitting component; 9. Ring body; 10. Support; 11. Limiting groove; 12. Rotating shaft; 13. Positioning pin; 14. Semi-transparent and semi-reflective mirror; 15. Mounting bracket; 16. Bracket; 17. Screw hole. DETAILED DESCRIPTION

[0025] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] like Figure 1 and Figure 2 As shown, the utility model provides a rotary digestion colorimetric tube absorbance detection device, comprising:

[0027] A base 1 is rotatably connected to a sample tray 2 above the base 1. The sample tray 2 is provided with a plurality of colorimetric tube insertion holes 3 along its circumference. The colorimetric tube insertion holes 3 are used to insert colorimetric tubes.

[0028] A driving mechanism is connected to the base 1 and is used to drive the sample tray 2 to rotate;

[0029] Detector 7, the detector 7 is arranged above the base 1;

[0030] The light source emitting component 8 is arranged above the base 1 . The light emitted by the light source emitting component 8 can pass through the colorimetric tube inserted in the colorimetric tube socket 3 and be received by the detector 7 .

[0031] Specifically, in order to solve the problem in the prior art that when performing absorbance detection, the absorbance of the test liquid in only one digestion colorimetric tube can be measured at a time, resulting in low detection efficiency; the rotary digestion colorimetric tube absorbance detection device provided by the utility model is provided with a rotatable sample tray 2 above the base 1, and multiple colorimetric tubes filled with test liquid that have undergone the digestion process can be inserted into the multiple colorimetric tube jacks 3 on the sample tray 2 at the same time, and driven by the driving mechanism to rotate with the sample tray 2. As the sample tray 2 rotates, the light emitted by the light source emitting component 8 passes through each colorimetric tube in turn and is received by the detector 7, thereby realizing absorbance detection. The absorbance of the test liquid in multiple colorimetric tubes can be continuously detected, and there is no need to put them into the single-hole photometric detector 7 one by one and detect them one by one as in the prior art, which can improve detection efficiency.

[0032] Furthermore, the light source emitting component 8 and the detector 7 may both be the light source emitting component 8 and the detector 7 in the existing COD analyzer, as long as they can detect absorbance, and are not limited here.

[0033] Optionally, a serial number marking plate is provided on the top of the sample plate 2, and the serial number marking plate is provided with a plurality of avoidance holes, and the avoidance holes are used to accommodate the passage of colorimetric tubes, and a serial number mark is provided on one side of each avoidance hole.

[0034] Specifically, the serial number marking plate can be installed on the top surface of the sample plate 2 by screws. The sample plate 2 is provided with a screw hole 17. The serial number mark on the serial number marking plate can be used to conveniently number each colorimetric tube to distinguish each colorimetric tube and the tested liquid inside it.

[0035] Optionally, the sample tray 2 includes a tray body and at least one ring body 9 spaced apart below the tray body. The tray body and the ring body 9 are connected by a support 10. A limiting groove 11 is provided on the upper side of the ring body 9 at the bottom. The limiting groove 11 is used to limit the lower end of the colorimetric tube. The colorimetric tube jack 3 on the tray body and the limiting groove 11 on the ring body 9 are provided in a one-to-one correspondence.

[0036] Specifically, the disc body and the ring body 9 are connected to form an integral structure through a support 10. One ring body 9 can be provided, or two or more ring bodies 9 can be provided. If two ring bodies 9 are provided, the two ring bodies 9 are also connected by a support 10, and except for the ring body 9 at the bottom, the other ring bodies 9 are provided with a colorimetric tube socket 3.

[0037] Optionally, the light source emitting component 8 is arranged inside the ring body 9 , and the detector 7 is arranged outside the ring body 9 .

[0038] Specifically, the setting of the ring body 9 can set the light source emitting component 8 inside it. The light emitted by the light source emitting component 8 is emitted outward and is received by the detector 7 outside the ring body 9, so as to achieve the effect of sequentially detecting the test liquids in multiple colorimetric tubes in the sample tray 2 as the sample tray 2 rotates.

[0039] Optionally, a rotating shaft 12 is provided in the middle of the sample tray 2, and the driving mechanism includes a driving motor 6 and a driving shaft. The driving motor 6 is used to drive the driving shaft to rotate, and the upper end of the driving shaft is detachably connected to the lower end of the rotating shaft 12.

[0040] Specifically, the drive motor 6 can be configured to directly or indirectly drive the drive shaft to rotate, and the drive shaft can then drive the rotating shaft 12 and the sample tray 2 to rotate. The detachable connection between the rotating shaft 12 and the drive shaft allows the sample tray 2 to be removed and moved, making it more convenient to put in and take out the colorimetric tube, thereby improving the convenience of the detection operation.

[0041] In this embodiment, the drive motor 6 is arranged on the upper side of the base 1. The base 1 is in an inverted U shape, and an accommodating space is formed inside the lower part. In the accommodating space, the output end of the drive motor 6 drives the drive shaft to rotate through a belt drive.

[0042] Optionally, a driving disk is connected to the outer periphery of the driving shaft, and a positioning pin 13 is provided on the driving disk. A positioning hole is provided on one side of the rotating shaft 12 of the sample disk 2, and the positioning hole is used to insert the positioning pin 13.

[0043] Specifically, the driving shaft and the rotating shaft 12 can be coaxially connected through a structure with a protrusion and a depression. In order to ensure the transmission between the two, a positioning pin 13 is also provided on the driving disk. The positioning pin 13 passes through the positioning hole on the sample disk 2 to realize the positioning and transmission of the sample disk 2.

[0044] Optionally, the upper end of the rotating shaft 12 extends out of the top of the sample tray 2 to form a handheld portion.

[0045] Specifically, the provision of the handheld portion makes it easier for the operator to lift or put down the sample tray 2, making the operation more convenient.

[0046] Optionally, two detectors 7 are provided, and a semi-transparent and semi-reflective mirror 14 is provided above the base 1 . Light passes through the semi-transparent and semi-reflective mirror 14 and is received by the two detectors 7 .

[0047] Specifically, the arrangement of the two detectors 7 and the semi-transparent and semi-reflective mirror 14 can realize dual-beam absorbance detection, and each colorimetric tube sequentially enters the detection light path to measure the absorbance at two wavelengths.

[0048] Optionally, a mounting bracket 15 is provided above the base 1 , and the detector 7 is connected to the mounting bracket 15 .

[0049] Specifically, the mounting bracket 15 can be arranged according to the mounting structure of the detector 7 , and the detector 7 can be mounted on the upper side of the base 1 .

[0050] Optionally, it further includes a shell, which is arranged on the outside of the rotary digestion colorimetric tube absorbance detection device. The base 1 is connected to the shell, and a through hole is opened on the shell, which can accommodate the sample tray 2 to pass vertically.

[0051] Specifically, the setting of the shell wraps the rotary digestion colorimetric tube absorbance detection device inside it to form protection. The shell can be connected to the base 1, and can also be connected to the bracket 16 on the upper side of the base 1. The bracket 16 on the upper side of the base 1 can also be used to connect some other components, such as display components, control components, etc.

[0052] In summary, when the rotary digestion colorimetric tube absorbance detection device provided by the present invention is used, the detection of multiple tubes of test liquid at one time is taken as an example: first, multiple colorimetric tubes containing test liquid are placed in a multi-hole heating digester for digestion. The multiple colorimetric tubes can include covered digestion colorimetric tubes 4 and open digestion colorimetric tubes 5; the multiple colorimetric tubes after digestion can all be inserted into the colorimetric tube jack 3 on the sample tray 2; then the driving mechanism, the light source emitting component 8 and the detector 7 are started, and the driving mechanism drives the sample tray 2 to drive the multiple colorimetric tubes to rotate. Each colorimetric tube enters the detection light path in turn to measure the absorbance at two wavelengths. There is no need to insert them into the detection light path one by one for measurement. The operation is convenient and the detection efficiency is high.

[0053] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A rotary digestion colorimetric tube absorbance detection device, characterized in that: include: A base, wherein a sample tray is rotatably connected to the top of the base, and the sample tray is provided with a plurality of colorimetric tube insertion holes along its circumference, and the colorimetric tube insertion holes are used to insert colorimetric tubes; A driving mechanism, the driving mechanism being connected to the base and configured to drive the sample tray to rotate; a detector, the detector being arranged above the base; A light source emitting component is provided above the base, and the light emitted by the light source emitting component can pass through the colorimetric tube inserted in the colorimetric tube socket and be received by the detector.

2. The rotary digestion colorimetric tube absorbance detection device according to claim 1, wherein: A serial number marking plate is provided on the top of the sample plate. The serial number marking plate is provided with a plurality of avoidance holes. The avoidance holes are used to accommodate the colorimetric tubes passing through. A serial number mark is provided on one side of each avoidance hole.

3. The rotary digestion colorimetric tube absorbance detection device according to claim 1, wherein: The sample tray includes a tray body and at least one ring body spaced apart below the tray body. The tray body is connected to the ring bodies by pillars. A limiting groove is provided on the upper side of the ring body at the bottom. The limiting groove is used to limit the lower end of the colorimetric tube. The colorimetric tube jack on the tray body and the limiting groove on the ring body are arranged in a one-to-one correspondence.

4. The rotary digestion colorimetric tube absorbance detection device according to claim 3, characterized in that: The light source emitting component is arranged inside the ring body, and the detector is arranged outside the ring body.

5. The rotary digestion colorimetric tube absorbance detection device according to claim 1, characterized in that: A rotating shaft is provided in the middle of the sample tray. The driving mechanism includes a driving motor and a driving shaft. The driving motor is used to drive the driving shaft to rotate. The upper end of the driving shaft is detachably connected to the lower end of the rotating shaft.

6. The rotary digestion colorimetric tube absorbance detection device according to claim 5, characterized in that: The outer periphery of the driving shaft is connected to a driving disk, and a positioning pin is provided on the driving disk. A positioning hole is provided on one side of the rotating shaft on the sample disk, and the positioning hole is used to insert the positioning pin.

7. The rotary digestion colorimetric tube absorbance detection device according to claim 5, characterized in that: The upper end of the rotating shaft extends out of the top of the sample tray to form a handheld portion.

8. The rotary digestion colorimetric tube absorbance detection device according to claim 1, characterized in that: Two detectors are provided, and a semi-transparent and semi-reflective mirror is provided above the base. The light passes through the semi-transparent and semi-reflective mirror and is received by the two detectors.

9. The rotary digestion colorimetric tube absorbance detection device according to claim 1, characterized in that: A mounting frame is provided above the base, and the detector is connected to the mounting frame.

10. The rotary digestion colorimetric tube absorbance detection device according to claim 1, characterized in that: It also includes a shell, which is arranged on the outside of the rotary digestion colorimetric tube absorbance detection device. The base is connected to the shell, and a through hole is opened on the shell, which can accommodate the sample disk to pass vertically.

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