Colorimetric analysis isolation operation device
By designing a colorimetric analysis isolation operation device to provide a closed reaction environment and dark test conditions, the problems of gas influence and inaccurate time control in colorimetric analysis are solved, and safe and efficient colorimetric analysis operation is achieved.
Patent Information
- Application Number
- CN202422868060.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The irritating and harmful gases produced during laboratory colorimetric analysis have an impact on operators, and existing fume hoods cannot perform colorimetric analysis tests in the dark, resulting in inaccurate time control.
A colorimetric analysis isolation operation device was designed, which included a transparent isolation operation cover, a black light-proof color development cabinet and a control cabinet. It was equipped with a ventilation fan, a voice timer and a voice switch to achieve automatic timing and ventilation control, and provide a closed reaction environment and dark test conditions.
It effectively prevents the influence of irritating and harmful gases on operators, ensures the accuracy of experimental results, simplifies the operation process, and improves work efficiency and safety.
Smart Images

Figure CN223485814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental equipment technology, and more specifically, to a colorimetric analysis isolation operation device. Background Technology
[0002] Colorimetric analysis in the laboratory produces irritating and harmful gases, which can have a certain impact on laboratory personnel. Therefore, the analysis can only be carried out in a fume hood.
[0003] For safety reasons, operators must leave the fume hood after adding reagents, which can lead to errors in controlling the experimental time. In addition, the existing fume hoods do not have black colorimetric cabinets, making it impossible to perform some colorimetric analysis experiments that require placement in the dark. Utility Model Content
[0004] This invention provides a colorimetric analysis isolation operation device to solve the problems of inaccurate control of analysis time and the inability of fume hoods to conduct colorimetric analysis experiments that require dark placement in the prior art.
[0005] To address the aforementioned problems, this utility model provides a colorimetric analysis isolation operation device, comprising an isolation operation hood, a light-shielding colorimetric cabinet, and a control cabinet. The isolation operation hood is a transparent, enclosed structure, and a ventilation fan is installed on it. The light-shielding colorimetric cabinet is located on one side of the isolation operation hood and is a black, enclosed structure. An anti-tipping frame is installed inside the light-shielding colorimetric cabinet for holding the colorimetric tubes. The control cabinet contains a voice timer and a voice switch. The voice timer is used to time the colorimetric analysis experiment inside the isolation operation hood via voice control. The voice switch is electrically connected to the ventilation fan and is used to control the opening and closing of the ventilation fan via voice.
[0006] Furthermore, there are two ventilation fans, which are axial flow fans.
[0007] Furthermore, the colorimetric analysis isolation operation device also includes a smoke exhaust pipe, which is connected to a ventilation fan.
[0008] Furthermore, the light-proof color display cabinet has an opening and closing mechanism, and an opening and closing door is provided at the opening and closing mechanism.
[0009] Furthermore, the upper edge of the opening and closing opening has an upper door rail, and the lower edge of the opening and closing opening has a lower door rail. The upper door rail and the lower door rail are arranged in parallel, and the upper edge of the opening and closing door cooperates with the upper door rail, and the lower edge of the opening and closing door cooperates with the lower door rail.
[0010] Furthermore, the light-proof color-developing cabinet is also equipped with drawers and slides. The drawers are designed to be pulled out via the slides, and an anti-tipping bracket is installed inside the drawers.
[0011] Furthermore, the voice timer includes a voice-activated switch, a time relay, and an audible and visual alarm. The control cabinet is also equipped with a 24V DC power supply, which powers the voice timer.
[0012] Furthermore, the light-shielding color development cabinet is equipped with a metal induction switch and an induction timer. The metal induction switch is used to control the induction timer, and the induction timer is used to time the colorimetric analysis tests inside the light-shielding color development cabinet.
[0013] Furthermore, the control cabinet's outer shell comprises acrylic sheet and / or aluminum composite panel, and the control cabinet's back panel is detachably mounted.
[0014] Furthermore, a residual current device (RCD) is installed inside the control cabinet. The RCD is connected to a voice switch and is connected to an external 220V AC power supply.
[0015] The present invention provides a colorimetric analysis isolation operation device, comprising an isolation operation hood, a light-shielding colorimetric cabinet, and a control cabinet. The isolation operation hood is a transparent, enclosed structure, and a ventilation fan is installed on it. The light-shielding colorimetric cabinet is located on one side of the isolation operation hood and is a black, enclosed structure. An anti-tipping frame is installed inside the light-shielding colorimetric cabinet for holding colorimetric tubes. The control cabinet contains a voice timer and a voice switch. The voice timer is used to time the colorimetric solution inside the isolation operation hood via voice control. The voice switch is electrically connected to the ventilation fan and is used to control the opening and closing of the ventilation fan via voice.
[0016] In this solution, the isolation hood provides a sealed reaction environment for the solutions or reagents requiring colorimetric analysis. This prevents operators from inhaling irritating and harmful gases generated during the colorimetric analysis, avoiding any impact on their health. The sealed environment also prevents splashing of reacting solutions or reagents, thus avoiding safety hazards. Furthermore, it prevents external impurities or other substances from affecting the experimental results, eliminating interference from external factors. The isolation hood is made of transparent material, allowing operators to easily monitor the status of the solutions or reagents undergoing colorimetric analysis in real time. A ventilation fan is also installed on the isolation hood to expel irritating and harmful gases generated during the colorimetric analysis experiment, preventing any impact on operator safety. The light-shielding colorimetric cabinet has a black, enclosed structure, providing a dark environment for colorimetric analysis experiments, preventing light from entering and affecting the experimental results. The cabinet also includes an anti-tipping rack to hold and secure the colorimetric tubes, ensuring they do not tilt or fall over during the experiment. The control cabinet is equipped with a voice timer and a voice switch. The voice timer can recognize and start timing based on pre-set voice commands from the operator. When the operator speaks the corresponding command, the timer begins, eliminating the need for manual timing and preventing operators from forgetting to start timing while busy with other tasks. The voice switch can recognize pre-set voice commands and turn the ventilation fan on or off, simplifying the process and improving efficiency. In this embodiment, the colorimetric analysis isolation operating device can exhaust irritating and harmful gases generated during the experiment through the isolation hood and ventilation fan, preventing any impact on the operator. Furthermore, the light-proof colorimetric cabinet provides a space for colorimetric analysis experiments that require dark placement. The voice timer and voice switch also enable automatic timing and automatic ventilation fan activation, simplifying the operator's tasks and improving work efficiency. Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0018] Figure 1 A schematic diagram of the structure of the colorimetric analysis isolation operation device provided in an embodiment of the present invention is shown;
[0019] Figure 2 A circuit diagram of the colorimetric analysis isolation operation device provided in an embodiment of the present invention is shown.
[0020] The above figures include the following reference numerals:
[0021] 10. Isolation operating hood;
[0022] 20. Light-proof color display cabinet;
[0023] 30. Control cabinet;
[0024] 31. Voice timer; 311. Voice-activated switch; 312. Time relay; 313. Audible and visual alarm;
[0025] 32. Voice switch;
[0026] 33. 24V DC power supply;
[0027] 34. Residual current device (RCD);
[0028] 40. Ventilation fan;
[0029] 50. Smoke exhaust pipe;
[0030] 60. Opening and closing doors;
[0031] 70. Drawer;
[0032] 80. Slide rail. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0034] like Figures 1 to 2 As shown, an embodiment of this utility model provides a colorimetric analysis isolation operation device, including an isolation operation cover 10, a light-shielding colorimetric cabinet 20, and a control cabinet 30. The isolation operation cover 10 is a transparent closed structure, and a ventilation fan 40 is installed on the isolation operation cover 10. The light-shielding colorimetric cabinet 20 is located on one side of the isolation operation cover 10. The light-shielding colorimetric cabinet 20 is a black closed structure, and an anti-tipping frame is installed inside the light-shielding colorimetric cabinet 20 for placing colorimetric tubes. The control cabinet 30 is equipped with a voice timer 31 and a voice switch 32. The voice timer 31 is used to time the colorimetric analysis experiment inside the isolation operation cover 10 via voice control. The voice switch 32 is electrically connected to the ventilation fan 40 and is used to control the opening and closing of the ventilation fan 40 via voice.
[0035] In this embodiment, the isolation operating hood 10 provides a closed reaction environment for the solutions or reagents requiring colorimetric analysis. This prevents the inhalation of irritating and harmful gases generated during colorimetric analysis, thus avoiding any impact on the operator. The closed working environment also prevents splashing of the reacting solutions or reagents, thus avoiding safety hazards for the operator. Furthermore, it prevents the influence of impurities or other substances in the external environment on the experimental results, avoiding interference from external factors. The isolation operating hood 10 is made of transparent material, allowing the operator to easily monitor the status of the solutions or reagents undergoing colorimetric analysis in real time. A ventilation fan 40 is also installed on the isolation operating hood 10 to expel irritating and harmful gases generated during the colorimetric analysis experiment, preventing any impact on the operator's safety. The light-shielding colorimetric cabinet 20 has a black, enclosed structure, providing a space for colorimetric analysis experiments that need to be placed in the dark, preventing light from entering and affecting the experimental results. The light-shielding colorimetric cabinet 20 is also equipped with an anti-tipping rack for placing and securing the colorimetric tubes, ensuring that the colorimetric tubes do not tilt or fall over during the experiment. The control cabinet 30 is equipped with a voice timer 31 and a voice switch 32. The voice timer 31 recognizes and starts timing based on pre-set voice commands from the operator. When the operator speaks the corresponding command, the timer 31 begins timing, eliminating the need for manual timing and preventing operators from forgetting to start timing while busy with other tasks. The voice switch 32 recognizes pre-set voice commands and turns the ventilation fan 40 on or off, simplifying the process and improving efficiency. In this embodiment, the colorimetric analysis isolation operating device allows irritating and harmful gases generated during the experiment to be exhausted through the isolation operating hood 10 and the ventilation fan 40, preventing any impact on the operator. Furthermore, the light-shielding colorimetric cabinet 20 provides a space for colorimetric analysis experiments that require dark placement. The voice timer 31 and voice switch 32 also enable automatic timing and automatic activation of the ventilation fan 40, simplifying the operator's tasks and improving work efficiency.
[0036] Optionally, an opening and a sliding baffle are provided above the isolation operation cover 10. The opening above the isolation operation cover 10 can be opened and closed by sliding the baffle. When it is necessary to operate the experimental instruments inside the isolation operation cover 10, the baffle is opened and the operator puts his / her hands into the isolation operation cover 10 through the opening to operate. When it is not necessary to operate, the baffle is closed to seal the isolation operation cover 10.
[0037] like Figure 1 As shown, there are two ventilation fans 40, and each ventilation fan 40 is an axial flow fan.
[0038] In this embodiment, two ventilation fans 40 are provided, which can provide a larger airflow and quickly expel irritating and harmful gases generated in the colorimetric analysis test, ensuring airflow within the isolation hood 10 and increasing ventilation efficiency. Using two ventilation fans 40 also ensures stable operation of the device, preventing a malfunction of one fan from causing a shutdown of the entire device, thus increasing the reliability of the device. Furthermore, the ventilation fans 40 are axial flow fans, allowing the irritating and harmful gases generated within the isolation hood 10 to be directly discharged along the axis of the ventilation fans 40, avoiding gas flow within the isolation hood 10 and improving gas discharge efficiency.
[0039] like Figure 1 As shown, the colorimetric analysis isolation operation device also includes a smoke exhaust pipe 50, which is connected to a ventilation fan 40.
[0040] In this embodiment, irritating gases, harmful gases, and volatile substances generated during the experiment are discharged outdoors through the exhaust pipe 50. After the exhaust pipe 50 is connected to the ventilation fan 40, the exhaust pipe 50 can efficiently discharge the gas, preventing it from accumulating inside the isolation operating hood 10 and threatening the safety of the operators. Moreover, the connection between the exhaust pipe 50 and the ventilation fan 40 can also prevent the discharged gas from flowing back, ensuring the air circulation inside the isolation operating hood 10.
[0041] Furthermore, the light-proof color display cabinet 20 has an opening and closing port, and an opening and closing door 60 is provided at the opening and closing port.
[0042] In this embodiment, by setting an opening and closing port at the front or rear of the light-proof colorimetric cabinet 20, and setting an opening and closing door 60 at the opening and closing port, colorimetric tubes or other experimental equipment can be conveniently placed or taken out, which improves the flexibility and convenience of the whole device, simplifies the operation process, and can improve work efficiency.
[0043] Specifically, the upper edge of the opening and closing opening has an upper door rail, and the lower edge of the opening and closing opening has a lower door rail. The upper door rail and the lower door rail are arranged in parallel. The upper edge of the opening and closing door 60 cooperates with the upper door rail, and the lower edge of the opening and closing door 60 cooperates with the lower door rail.
[0044] In this embodiment, upper and lower door tracks are provided at the opening and closing points to ensure that the door 60 moves smoothly along the fixed tracks during opening and closing, thus avoiding tilting, jamming, or deviation from the tracks due to imbalance or asymmetry. The precise fit between the upper and lower edges of the door 60 and the tracks ensures even force distribution on the door body, preventing deformation or damage due to long-term use. The upper and lower door tracks reduce direct friction between the door 60 and the frame, thereby reducing wear and damage during long-term use. Furthermore, the upper and lower door tracks ensure precise closure of the door, preventing gaps or looseness, minimizing light leakage, and ensuring the light-blocking effect of the light-blocking color display cabinet 20.
[0045] like Figure 1 As shown, the light-proof color display cabinet 20 is also equipped with a slide rail 80 and a drawer 70. The drawer 70 is designed to be pulled out via the slide rail 80, and an anti-tipping bracket is installed inside the drawer 70.
[0046] In this embodiment, the design of the slide rail 80 and drawer 70 allows operators to easily remove colorimetric tubes or samples from the light-proof colorimetric cabinet 20, avoiding frequent opening and closing of the cabinet door or moving the colorimetric tubes outside the cabinet for operation. The slide rail 80 design ensures that the drawer 70 can be pulled out smoothly and stably, reducing the complexity of operation. Moreover, the drawer 70 provides an orderly storage space, allowing different types of colorimetric tubes or experimental equipment to be placed in an orderly manner, avoiding the accumulation or chaos of items and improving the efficiency of space utilization. The anti-tipping rack is made of metal and is installed inside the drawer 70, specifically for placing colorimetric tubes or other experimental containers, ensuring that colorimetric tubes and other samples remain stable inside the drawer 70 and are not prone to tilting or tipping over due to pulling or vibration of the drawer 70.
[0047] like Figure 1 As shown, the voice timer 31 includes a voice-activated switch 311, a time relay 312, and an audible and visual alarm 313. The control cabinet 30 is also equipped with a 24V DC power supply 33, which supplies power to the voice timer 31.
[0048] In this embodiment, the voice timer 31 includes a voice-activated switch 311, a time relay 312, and an audible and visual alarm 313. Through the combination of the voice-activated switch 311 and the time relay 312, the operator can start or stop the timer using voice commands, eliminating the hassle of manual operation. This is especially important when both hands may be occupied by experimental operations; the operator can control the timer via voice, ensuring accuracy and convenience. The audible and visual alarm 313 emits sound and flashing signals when the timer ends, promptly reminding the operator to pay attention to the experimental progress and preventing them from ignoring the passage of time due to excessive focus on the experimental operation. This is an important safety guarantee in colorimetric analysis experiments; timely alarms can prevent operational delays or experimental failures. A 24V DC power supply 33 powers the entire voice timer 31, ensuring its stability and reliability. The 24V DC power supply has high stability and anti-interference capabilities, providing constant power to all components of the voice timer 31 and preventing system malfunctions or failures due to power fluctuations.
[0049] Furthermore, the light-shielding color development cabinet 20 is equipped with a metal induction switch and an induction timer. The metal induction switch is used to control the induction timer, and the induction timer is used to time the colorimetric analysis test inside the light-shielding color development cabinet 20.
[0050] In this embodiment, a metal sensor switch and a timer are installed at the bottom of drawer 70. The timer and the metal sensor switch are electrically connected. The timer includes a time relay 312 and an audible and visual alarm 313. The metal sensor switch can detect the presence of a metal object. When drawer 70 is closed, the metal anti-tipping bracket contacts the metal sensor switch, and the metal sensor switch controls the timer to start timing, ensuring the accuracy of timing. It also prevents external light sources from entering the light-shielding colorimetric cabinet 20 due to manual operation, which could affect the ongoing experiment and its results. When the timer expires, the audible and visual alarm 313 in the timer emits a sound and flashing signal to promptly remind the operator to pay attention to the experimental progress and prevent them from ignoring the passage of time due to excessive focus on the experimental operation, thus avoiding unnecessary impact on the experimental results.
[0051] The outer shell of the control cabinet 30 includes an acrylic sheet and / or an aluminum composite panel, and the back panel of the control cabinet 30 is detachably installed.
[0052] In this embodiment, the outer shell of the control cabinet 30 includes acrylic sheet and / or aluminum composite panel. Both acrylic sheet and aluminum composite panel have high physical durability and protective performance, effectively protecting the electronic components and electrical systems inside the control cabinet 30 from the influence of the external environment. Acrylic sheet provides transparency, facilitating observation of the internal state of the control cabinet 30, while aluminum composite panel has stronger impact resistance and corrosion resistance. Using acrylic sheet and / or aluminum composite panel can increase the service life of the control cabinet 30. Moreover, acrylic sheet and / or aluminum composite panel are lightweight and easy to process, simplifying the assembly process, improving efficiency, and their low cost can reduce the overall cost of the device.
[0053] like Figure 1 As shown, a residual current device (RCD) 34 is installed inside the control cabinet 30. The RCD 34 is connected to the voice switch 32 and is connected to an external 220V AC power supply.
[0054] In this embodiment, the leakage current protector 34 is connected to the voice switch 32 and an external 220V AC power supply. The leakage current protector 34 can detect whether there is leakage in the device. When leakage is detected, it quickly cuts off the power supply to prevent the device from continuing to work with power, avoids further damage to the internal circuits, components or equipment, and reduces safety accidents such as electric shock and fire caused by leakage.
[0055] The colorimetric analysis isolation operation device provided in this application, through the setting of the isolation operation hood 10 and the light-proof colorimetric cabinet 20, achieves isolated operation and light-proof display during the colorimetric analysis process, effectively preventing the influence of the external environment on the colorimetric solution and improving the accuracy and reliability of colorimetric analysis performed within the isolation operation hood 10. Simultaneously, the voice timer 31 and voice switch 32 installed in the control cabinet 30 allow operators to control the operation of the entire device via voice, improving operational convenience and safety. Furthermore, the metal induction switch and induction timer inside the light-proof colorimetric cabinet 20 ensure the accuracy of colorimetric analyses performed in the dark within the cabinet 20. The solution in this application effectively improves work efficiency, reduces operational risks, avoids the impact of irritating and harmful gases generated during experiments on operators, and provides a suitable environment for colorimetric analyses requiring dark conditions.
[0056] The above description is merely an optional embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.
[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0059] In the description of this solution, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this solution and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this solution. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0060] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0061] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this solution.
Claims
1. A colorimetric analysis isolation operation device, characterized in that, The system includes an isolation operating cover (10), a light-shielding colorimetric cabinet (20), and a control cabinet (30). The isolation operating cover (10) is a transparent, enclosed structure, and a ventilation fan (40) is installed on the isolation operating cover (10). The light-shielding colorimetric cabinet (20) is located on one side of the isolation operating cover (10). The light-shielding colorimetric cabinet (20) is a black, enclosed structure, and an anti-tipping frame is installed inside the light-shielding colorimetric cabinet (20) for placing colorimetric tubes. The control cabinet (30) is equipped with a voice timer (31) and a voice switch (32). The voice timer (31) is used to time the colorimetric analysis test inside the isolation operating cover (10) via voice control. The voice switch (32) is electrically connected to the ventilation fan (40) and is used to control the opening and closing of the ventilation fan (40) via voice.
2. The colorimetric analysis isolation operation device according to claim 1, characterized in that, There are two ventilation fans (40), and the ventilation fans (40) are axial flow fans.
3. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The colorimetric analysis isolation operation device also includes a smoke exhaust pipe (50), which is connected to the ventilation fan (40).
4. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The light-proof color display cabinet (20) has an opening and closing port, and an opening and closing door (60) is provided at the opening and closing port.
5. The colorimetric analysis isolation operation device according to claim 4, characterized in that, The upper edge of the opening and closing port has an upper door rail, and the lower edge of the opening and closing port has a lower door rail. The upper door rail and the lower door rail are arranged in parallel. The upper edge of the opening and closing door (60) cooperates with the upper door rail, and the lower edge of the opening and closing door (60) cooperates with the lower door rail.
6. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The light-proof color display cabinet (20) is also equipped with a slide rail (80) and a drawer (70). The drawer (70) is slidable and can be pulled out via the slide rail (80). The anti-tipping bracket is installed inside the drawer (70).
7. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The voice timer (31) includes a voice-activated switch (311), a time relay (312), and an audible and visual alarm (313). The control cabinet (30) is also equipped with a 24V DC power supply (33), which supplies power to the voice timer (31).
8. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The light-shielding color development cabinet (20) is equipped with a metal induction switch and an induction timer. The metal induction switch is used to control the induction timer, and the induction timer is used to time the colorimetric analysis test in the light-shielding color development cabinet (20).
9. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The outer shell of the control cabinet (30) includes an acrylic sheet and / or an aluminum composite panel, and the back panel of the control cabinet (30) is detachably installed.
10. The colorimetric analysis isolation operation device according to claim 1, characterized in that, The control cabinet (30) is equipped with a leakage current protector (34), which is connected to the voice switch (32) and the leakage current protector (34) is connected to an external 220V AC power supply.