Reagent auto-mixing colorimetric detection device

Abstract

The application relates to a colorimetric detection device for automatic mixing of reagents, which comprises a cuvette shield, a cuvette, a receiving module, a transmitting module, a plano-convex lens, a light source, a magnetic stirrer and a stirring mechanism. The cuvette shield is a hollow structure with an open top, the cuvette is arranged in the cuvette shield, the receiving module and the transmitting module are arranged on the two sides of the cuvette shield and correspond to each other, the receiving module and the transmitting module receive and send detection results, the plano-convex lens and the light source are arranged on the two sides of the cuvette and correspond to each other, the magnetic stirrer is arranged in the cuvette, the stirring mechanism is arranged on the cuvette shield and located on the side opposite to the open end of the cuvette shield, the stirring mechanism is magnetically connected with the magnetic stirrer and drives the magnetic stirrer to stir in the cuvette. The device integrates reagent mixing and colorimetric detection, realizes automatic and uniform mixing of the reagents through cooperation of the stirring mechanism and the magnetic stirrer, and avoids errors and inconvenience of manual stirring.

Description

Technical Field

[0001] This application relates to the field of chemical detection equipment technology, and in particular to a colorimetric detection device with automatic reagent mixing. Background Technology

[0002] Colorimetric detection is a common technique for determining the concentration or properties of a substance by measuring its absorption of light at a specific wavelength. This technique relies on the homogeneous mixing of reagents and the sample to be tested, as well as a stable optical detection environment. Therefore, achieving efficient reagent mixing, avoiding external interference, and ensuring detection accuracy are the core issues in the design of related detection devices.

[0003] However, traditional devices mostly use manual stirring or simple mechanical stirring. Manual operation is prone to errors and it is difficult to control the uniformity of mixing. The limitations of manual operation are even more obvious, especially for trace reagents or high viscosity solutions. Utility Model Content

[0004] To address the problem that traditional devices cannot integrate reagent mixing and colorimetric detection, this invention provides a colorimetric detection device for automatic reagent mixing, comprising: a cuvette cover, a cuvette, a receiving module, a transmitting module, a plano-convex lens, a light source, a magnetic stir bar, and a stirring mechanism.

[0005] The cuvette cover is a hollow structure with an opening at the top;

[0006] The cuvette is disposed inside the cuvette cover;

[0007] The receiving module and the transmitting module are disposed on both sides of the cuvette cover, and the receiving module corresponds to the transmitting module to receive and transmit the detection results;

[0008] The plano-convex lens and the light source are disposed on both sides of the cuvette, and the plano-convex lens corresponds to the light source;

[0009] The magnetic stir bar is built into the cuvette;

[0010] The stirring mechanism is disposed on the cuvette cover, located on the side opposite to the opening end of the cuvette cover, and the stirring mechanism is magnetically connected to the magnetic stir bar, driving the magnetic stir bar to stir inside the cuvette.

[0011] One possible implementation also includes: a cuvette injection cap and a top cover;

[0012] The cuvette injection cap is fitted into the top opening of the cuvette;

[0013] The top cover matches the top opening of the cuvette cover. The top cover is located at the top opening of the cuvette cover, and the top cover has a fixing hole on its surface. It is fitted over the outside of the cuvette to fix the cuvette.

[0014] In one possible implementation, the bottom of the cuvette has a liquid outlet hole that connects to the outside of the cuvette cover.

[0015] In one possible implementation, the stirring mechanism includes: a mounting frame housing, a stirring motor, a stirrer, a locking knob, and a magnet;

[0016] The locking knob is embedded in the bottom of the cuvette cover, and the magnetic stir bar is located on the locking knob;

[0017] The mounting frame housing has a hollow structure with a rotating stirring tank at the top.

[0018] The output end of the stirring motor is located inside the rotating stirring tank;

[0019] The stirrer is disposed inside the rotating stirring tank and is connected to the output end of the stirring motor. The output end of the stirring motor drives the stirrer to rotate circumferentially.

[0020] The magnet is mounted on the stirrer and is magnetically connected to the magnetic stir bar.

[0021] In one possible implementation, the mounting bracket housing is detachably connected to the bottom of the cuvette cover.

[0022] One possible implementation also includes: a cuvette injection cap;

[0023] The cuvette injection cap is fitted into the top opening of the cuvette.

[0024] In one possible implementation, the cuvette is covered with a light-shielding cover;

[0025] An observation window is provided on the outside of the cuvette cover, and the observation window is provided along the length of the cuvette cover and corresponds to the cuvette.

[0026] One possible implementation also includes: a colorimetric component support;

[0027] The colorimetric component bracket is a plate-shaped structure with multiple mounting holes on its surface, suitable for bolting to the colorimetric cuvette cover and the instrument's internal mounting plate.

[0028] One possible implementation also includes: a temperature control module;

[0029] The temperature control module has a ring-shaped structure and is fitted over the outside of the cuvette.

[0030] One possible implementation also includes: a sealing ring;

[0031] The sealing ring is fitted between the cuvette injection cap and the top opening of the cuvette.

[0032] The beneficial effects of the reagent automatic mixing colorimetric detection device of this application embodiment are as follows: The device integrates reagent mixing and colorimetric detection into one unit. The automatic and uniform mixing of reagents is achieved through the cooperation of the stirring mechanism and the magnetic stir bar, avoiding the errors and inconvenience of manual stirring. The setting of the plano-convex lens and the light source ensures the stable transmission of light signals and improves the accuracy of colorimetric detection. The receiving module and the transmitting module realize the automated transmission of detection data, improve detection efficiency, and are suitable for laboratory automated detection scenarios.

[0033] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0034] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0035] Figure 1 This is a schematic diagram of the main structure of the colorimetric detection device for automatic reagent mixing according to an embodiment of this application;

[0036] Figure 2 An exploded view of the colorimetric detection device for automatic reagent mixing according to an embodiment of this application is shown.

[0037] Figure 3 This is a partially enlarged schematic diagram of a colorimetric detection device for automatic reagent mixing according to an embodiment of this application. Detailed Implementation

[0038] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0039] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0042] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0043] like Figure 1 As shown, the colorimetric detection device for automatic reagent mixing according to an embodiment of this application includes: a cuvette cover 1, a cuvette 8, a receiving module 5, a transmitting module 9, a plano-convex lens 18, a light source 17, a magnetic stir bar, and a stirring mechanism. The cuvette cover 1 is a hollow structure with an open top. The cuvette 8 is disposed inside the cuvette cover 1. The receiving module 5 and the transmitting module 9 are disposed on both sides of the cuvette cover 1, and the receiving module 5 corresponds to the transmitting module 9 to receive and transmit detection results. The plano-convex lens 18 and the light source 17 are disposed on both sides of the cuvette 8, and the plano-convex lens 18 corresponds to the light source 17. The magnetic stir bar is built into the cuvette 8. The stirring mechanism is disposed on the cuvette cover 1, located on the side opposite to the open end of the cuvette cover 1, and the stirring mechanism is magnetically connected to the magnetic stir bar to drive the magnetic stir bar to stir inside the cuvette 8.

[0044] In this specific embodiment, the device integrates reagent mixing and colorimetric detection. The automatic and uniform mixing of reagents is achieved through the cooperation of a stirring mechanism and a magnetic stir bar, avoiding the errors and inconvenience of manual stirring. The plano-convex lens 18 and the light source 17 ensure stable transmission of light signals and improve the accuracy of colorimetric detection. The receiving module 5 and the transmitting module 9 realize the automated transmission of detection data, improve detection efficiency, and are suitable for automated laboratory detection scenarios.

[0045] Specifically, the cuvette cover 1 is a hollow structure with an open top, providing installation space and protection for internal components. The cuvette 8 is located inside the cover and is used to hold the reagent to be tested. The receiving module 5 and the transmitting module 9 are respectively located on both sides of the cover and correspond to each other, enabling the reception and transmission of test results, facilitating data transmission and processing. The plano-convex lens 18 and the light source 17 are respectively located on both sides of the cuvette 8. The light emitted by the light source 17 is focused by the plano-convex lens 18 and passes through the reagent in the cuvette 8. The receiving module 5 can detect changes in the light signal for colorimetric analysis. The magnetic stir bar is built into the cuvette 8, and the stirring mechanism is located on the side opposite to the opening end of the cover. The magnetic stir bar is driven by magnetic attraction to stir, realizing automatic mixing of reagents.

[0046] In one specific embodiment, it further includes: a sample inlet cap for cuvette 8 and a top cover 2. The sample inlet cap for cuvette 8 is embedded in the top opening of cuvette 8. The top cover 2 matches the top opening of cuvette cover 1. The top cover 2 is located at the top opening of cuvette cover 1, and a fixing hole is provided on the plate surface of the top cover 2. It is fitted over the outside of cuvette 8 to fix cuvette 8.

[0047] In this specific embodiment, the sample cap of the cuvette 8 facilitates precise addition of reagents, reducing reagent splashing and contamination; the upper cover 2 fixes the cuvette 8 through the fixing hole, preventing the cuvette 8 from shifting due to device vibration or stirring process, ensuring the stability of the optical signal transmission path, and thus improving the reliability of the detection results.

[0048] Specifically, the sample inlet cap of cuvette 8 is embedded in the top opening of cuvette 8 to facilitate reagent injection and to provide a certain degree of sealing to the opening; the top cover 2 matches the top opening of cuvette cover 1 and is set at the top opening of the cover, and the fixing hole opened on its plate is fitted onto the outside of cuvette 8 to fix cuvette 8 and ensure that the position of cuvette 8 is stable during the detection process.

[0049] In one specific embodiment, the bottom of the cuvette 8 has a liquid outlet hole that connects to the outside of the cuvette cover 1.

[0050] In this specific embodiment, the liquid outlet hole allows the device to discharge reagents without disassembling the cuvette 8, simplifying the operation process, improving detection efficiency, and facilitating device cleaning.

[0051] Specifically, the bottom of the cuvette 8 has a horizontal ultrasonic cuvette cover 1 with an outlet tube extending outwards, which can then discharge the used liquid.

[0052] In one specific embodiment, the stirring mechanism includes: a mounting frame housing 7, a stirring motor 15, a stirrer 14, a locking knob 12, and a magnet 13. The locking knob 12 is embedded in the bottom of the cuvette cover 1, and the magnetic stir bar is located on the locking knob 12. The mounting frame housing 7 has a hollow structure with a rotating stirring groove at the top. The output end of the stirring motor 15 is located inside the rotating stirring groove, and the stirrer 14 is located inside the rotating stirring groove and connected to the output end of the stirring motor 15. The output end of the stirring motor 15 drives the stirrer 14 to rotate circumferentially. The magnet 13 is located on the stirrer 14 and is magnetically connected to the magnetic stir bar.

[0053] In this specific embodiment, the stirring mechanism drives the stirrer 14 and magnet 13 to rotate via a motor, and uses the magnetic attraction principle to drive the magnetic stir bar to achieve non-contact stirring, avoiding direct contact between the stirring mechanism and the reagent and causing contamination; the locking knob 12 ensures the stable position of the magnetic stir bar, and the stirring motor 15 can precisely control the stirring speed and time to meet the mixing requirements of different reagents, improve the mixing uniformity and detection accuracy.

[0054] Specifically, the locking knob 12 is embedded in the bottom of the cuvette cover 1, and the magnetic stir bar is located on the locking knob 12; the mounting bracket housing 7 has a hollow structure with a rotating stirring groove on the top; the output end of the stirring motor 15 is located in the rotating stirring groove, the stirrer 14 is set in the groove and connected to the motor output end, and the motor drives the stirrer 14 to rotate circumferentially; the magnet 13 is set on the stirrer 14 and is magnetically connected to the magnetic stir bar, thereby driving the magnetic stir bar to stir in the cuvette 8.

[0055] In one specific embodiment, the mounting bracket housing 7 is detachably connected to the bottom of the cuvette cover 1. The detachable connection design improves the ease of maintenance of the device. When the stirring motor 15, the stirrer 14, or the magnet 13 malfunctions, the mounting bracket housing 7 can be quickly disassembled for repair or replacement.

[0056] In one specific embodiment, it further includes: a sample inlet cap for cuvette 8, which is embedded in the top opening of cuvette 8. The sample inlet cap for cuvette 8 provides a convenient channel for reagent injection and also plays a certain sealing role, keeping the internal environment of cuvette 8 clean, avoiding contamination of reagents by external factors, and ensuring the purity of reagents during the detection process.

[0057] In one specific embodiment, the cuvette 8 is covered with a light shield, and an observation window is opened on the outside of the cuvette cover 1, which is opened along the length of the cuvette cover 1 and corresponds to the cuvette 8.

[0058] In this specific embodiment, the light shield effectively reduces external light interference, ensuring that the light signal emitted by the light source 17 is the only valid signal for detection, thus improving the accuracy of colorimetric detection. The observation window facilitates real-time monitoring of the reagent status, allowing observation without opening the shield, ensuring the stability of the detection environment and enabling operators to promptly grasp the detection process.

[0059] In one specific embodiment, the device further includes a colorimetric component support 4. The colorimetric component support 4 is a plate-like structure with multiple mounting holes on its surface, suitable for bolting to the cuvette cover 1 and the instrument's internal mounting plate. The colorimetric component support 4 ensures that the device can be stably mounted on the instrument's internal mounting plate, preventing displacement or tipping due to vibration during stirring or improper operation.

[0060] In one specific embodiment, the device further includes a temperature control module 16, which is a ring-shaped structure and is fitted over the cuvette 8. The temperature control module 16 precisely controls the reagent temperature, preventing temperature variations from affecting the reagent reaction and detection results, thus improving the repeatability and accuracy of the detection. The temperature control module 16 can be implemented using existing technology, which will not be elaborated upon here.

[0061] In one specific embodiment, it further includes a sealing ring, which is fitted between the sample cap of cuvette 8 and the top opening of cuvette 8.

[0062] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they 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. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A colorimetric detection device for automatic reagent mixing, characterized in that, include: Cuvette cover, cuvette, receiving module, transmitting module, plano-convex lens, light source, magnetic stir bar and stirring mechanism; The cuvette cover is a hollow structure with an opening at the top; The cuvette is disposed inside the cuvette cover; The receiving module and the transmitting module are disposed on both sides of the cuvette cover, and the receiving module corresponds to the transmitting module to receive and transmit the detection results; The plano-convex lens and the light source are disposed on both sides of the cuvette, and the plano-convex lens corresponds to the light source; The magnetic stir bar is built into the cuvette; The stirring mechanism is disposed on the cuvette cover, located on the side opposite to the opening end of the cuvette cover, and the stirring mechanism is magnetically connected to the magnetic stir bar, driving the magnetic stir bar to stir inside the cuvette.

2. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, Also includes: Cuvette sample inlet cap and top cover; The cuvette injection cap is fitted into the top opening of the cuvette; The top cover matches the top opening of the cuvette cover. The top cover is located at the top opening of the cuvette cover, and the top cover has a fixing hole on its surface. It is fitted over the outside of the cuvette to fix the cuvette.

3. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, The bottom of the cuvette has a liquid outlet hole that connects to the outside of the cuvette cover.

4. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, The stirring mechanism includes: a mounting frame housing, a stirring motor, a stirrer, a locking knob, and a magnet; The locking knob is embedded in the bottom of the cuvette cover, and the magnetic stir bar is located on the locking knob; The mounting frame housing has a hollow structure with a rotating stirring tank at the top. The output end of the stirring motor is located inside the rotating stirring tank; The stirrer is disposed inside the rotating stirring tank and is connected to the output end of the stirring motor. The output end of the stirring motor drives the stirrer to rotate circumferentially. The magnet is mounted on the stirrer and is magnetically connected to the magnetic stir bar.

5. The colorimetric detection device for automatic reagent mixing according to claim 4, characterized in that, The mounting bracket housing is detachably connected to the bottom of the cuvette cover.

6. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, Also includes: cuvette sample cap; The cuvette injection cap is fitted into the top opening of the cuvette.

7. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, The cuvette is covered with a light shield; An observation window is provided on the outside of the cuvette cover, and the observation window is provided along the length of the cuvette cover and corresponds to the cuvette.

8. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, Also includes: Colorimetric component holder; The colorimetric component bracket is a plate-shaped structure with multiple mounting holes on its surface, suitable for bolting to the colorimetric cuvette cover and the instrument's internal mounting plate.

9. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, Also includes: Thermostatic module; The temperature control module has a ring-shaped structure and is fitted over the outside of the cuvette.

10. The colorimetric detection device for automatic reagent mixing according to claim 1, characterized in that, Also includes: Sealing ring; The sealing ring is fitted between the cuvette injection cap and the top opening of the cuvette.

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