CN212906585U - Waste liquid anti-overflow alarm device for chemical analyzer - Google Patents
Waste liquid anti-overflow alarm device for chemical analyzer Download PDFInfo
- Publication number
- CN212906585U CN212906585U CN202022324506.1U CN202022324506U CN212906585U CN 212906585 U CN212906585 U CN 212906585U CN 202022324506 U CN202022324506 U CN 202022324506U CN 212906585 U CN212906585 U CN 212906585U
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- metal probe
- alarm device
- micro
- overflow alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The utility model discloses a waste liquid anti-overflow alarm device for a chemical analyzer, which comprises a waste liquid recovery unit consisting of a shell and a containing cavity, and the waste liquid anti-overflow alarm device also comprises a first metal probe and a second metal probe; the information processing module comprises a return difference circuit, an isolation circuit and a micro-processing unit; the first metal probe and the second metal probe transmit collected signals to the return difference circuit, the return difference circuit processes the received signals, isolates the signals through the isolation circuit to remove interference, and then outputs the signals to the micro-processing unit, and the micro-processing unit transmits processed data information to the upper computer. The utility model has the advantages that the first metal probe and the second metal probe are arranged on the shell of the waste liquid tank at intervals to collect the waste liquid information in the waste liquid tank, thereby not only having low cost, but also having less influence on the waste liquid pipeline of the waste liquid tank, and realizing the flexible installation of the waste liquid pipeline; the first metal probe and the second metal probe are separated by the separating baffle, so that false triggering caused by liquid fluctuation is prevented, and interference is eliminated.
Description
Technical Field
The utility model relates to a chemical analyzer especially relates to a waste liquid anti-overflow alarm device for chemical analyzer.
Background
The magnetic bead cleaning module of the chemical analyzer is an important part influencing the reliability of the detection result. The magnetic bead cleaning aims to separate free reaction substances in reaction liquid from the magnetic beads, cleaning liquid is injected into the reaction cup by the liquid injection needle for cleaning during cleaning, and waste liquid after cleaning is discharged by the liquid extraction needle after cleaning. After the magnetic beads are cleaned, the injection needle is often cleaned with purified water to avoid cross contamination. However, because the magnetic bead cleaning module has more injection needles, the flushing pressure is often required to be increased by a pressure valve when the magnetic bead cleaning module is cleaned by purified water, the waste liquid generating speed is relatively high, and if a waste liquid pipeline communicated with the waste liquid tank is blocked or bent, the waste liquid injection amount of the waste liquid tank is larger than the liquid discharge amount of the waste liquid tank, so that the waste liquid overflows the waste liquid tank, and machine faults are caused.
In order to solve the above technical problems, a pressure sensor or a flow sensor is usually disposed on the waste liquid pipeline, and the liquid discharge condition of the waste liquid pipeline is monitored by using the pressure sensor or the flow sensor. However, the installation mode of the waste liquid pipeline by adopting the pressure sensor or the flow sensor has higher requirement, so that the installation position of the waste liquid pipeline is single, the installation requirement of the sensor is also higher, and the installation cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an overflow alarm device is prevented to waste liquid for chemical analysis appearance.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
a waste liquid anti-overflow alarm device for chemical analyzer, include by the casing and hold the waste liquid recovery unit that the chamber constitutes, waste liquid anti-overflow alarm device still includes
The first metal probe is horizontally arranged at the lower part of the side wall of the shell;
the second metal probe is horizontally arranged at the lower part of the side wall of the shell, the installation height of the second metal probe is the same as that of the first metal probe, and the second metal probe and the first metal probe extend into the accommodating cavity;
the information processing module comprises a return difference circuit, an isolation circuit and a micro-processing unit;
the first metal probe and the second metal probe transmit acquired signals to the return difference circuit, the return difference circuit processes the received signals and isolates the signals through the isolation circuit to remove interference, the isolation circuit outputs isolated data information to the micro-processing unit, and the micro-processing unit transmits the processed data information to the upper computer.
In the preferred embodiment of the present invention, a separation baffle is disposed on the side wall of the housing, and the separation baffle separates the first metal probe from the second metal probe.
In a preferred embodiment of the present invention, the waste liquid recovery unit is a waste liquid tank having a circular structure.
The utility model has the advantages that the first metal probe and the second metal probe are arranged on the shell of the waste liquid tank at intervals to collect the waste liquid information in the waste liquid tank, thereby not only having low cost, but also having less influence on the waste liquid pipeline of the waste liquid tank, and realizing the flexible installation of the waste liquid pipeline; the first metal probe and the second metal probe are separated by the separating baffle, so that false triggering caused by liquid fluctuation is prevented, and interference is eliminated. The utility model discloses utilize two metal probe to come the acquisition signal, information processing module can be with the signal processing back voltage signal that two metal probe gathered and transmit to the host computer, send the warning suggestion and stop the washing, reduced the fault rate of instrument.
Drawings
Fig. 1 is a schematic structural diagram of the waste liquid recovery unit of the present invention.
FIG. 2 is a schematic view of the waste liquid recovery unit of FIG. 1 from the A-A direction.
Fig. 3 is a schematic block circuit diagram of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-2, the waste liquid anti-overflow alarm device for a chemical analyzer of the present invention comprises a waste liquid recovery unit (the waste liquid recovery unit is a waste liquid tank disposed below a magnetic bead cleaning mechanism F, and the waste liquid tank is a circular structure) composed of a housing 1 and a containing cavity; the waste liquid anti-overflow alarm device also comprises
A first metal probe 2 horizontally disposed at a lower portion of a side wall of the housing 1, and installed at a height not exceeding a minimum height of the waste liquid in the waste liquid tank (i.e., a bottom of a bottom wall of the waste liquid tank), and the first metal probe 2 is at a low level;
the second metal probe 3 is horizontally arranged at the lower part of the side wall of the shell 1, the installation heights of the second metal probe 3 and the first metal probe are the same and are arranged at intervals, and the second metal probe 3 and the first metal probe 2 are positioned in the accommodating cavity;
the separation baffle 4 is arranged on the inner side surface of the shell 1 and separates the first metal probe 2 from the second metal probe 3, so that false triggering caused by liquid fluctuation is prevented, and interference is eliminated;
the information processing module comprises a return difference circuit, an isolation circuit and a micro-processing unit, wherein an IC chip adopted by the return difference circuit is a comparator, and an isolation IC chip in the isolation circuit is a photoelectric isolation chip;
as shown in fig. 3, the first metal probe 2 and the second metal probe 3 transmit the acquired signals to a return difference circuit (the return difference circuit is preset with a high level trigger alarm or a low level trigger alarm), the signals are processed by a comparator of the return difference circuit and then output voltage signals in different states, an isolation circuit isolates the processed voltage signals to remove interference, then the voltage signals are transmitted to an MCU, the MCU converts the high and low levels of the voltage into digital codes 1 or 0 and transmits the digital codes to an upper computer through a bus, and the upper computer sends out an alarm prompt according to the agreed alarm state 1 or 0; when the upper computer sends out the warning suggestion, the upper computer sends control command to the instrument simultaneously, makes the instrument stop operation, reduces the instrument fault rate.
The utility model utilizes the first metal probe 2 and the second metal probe 3 to be arranged on the shell 1 of the waste liquid tank to monitor the liquid level signal of the waste liquid tank in real time, which not only has low cost, but also reduces the limit of the traditional pressure sensor or flow sensor to the liquid discharge pipeline; and when the water level in the waste liquid tank reaches the height of the first metal probe 2 and the second metal probe 3, the alarm prompt can be given, the instrument can stop running, and the machine failure rate is reduced.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in fig. 1), and if the specific posture is changed, the directional indicator is changed accordingly. In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (3)
1. The utility model provides a waste liquid anti-overflow alarm device for chemical analyzer, includes by the casing with hold the waste liquid recovery unit that the chamber constitutes, its characterized in that: the waste liquid anti-overflow alarm device also comprises
The first metal probe is horizontally arranged at the lower part of the side wall of the shell;
the second metal probe is horizontally arranged at the lower part of the side wall of the shell, the installation height of the second metal probe is the same as that of the first metal probe, and the second metal probe and the first metal probe extend into the accommodating cavity;
the information processing module comprises a return difference circuit, an isolation circuit and a micro-processing unit;
the first metal probe and the second metal probe transmit acquired signals to the return difference circuit, the return difference circuit processes the received signals and isolates the signals through the isolation circuit to remove interference, the isolation circuit outputs isolated data information to the micro-processing unit, and the micro-processing unit transmits the processed data information to the upper computer.
2. The waste liquid anti-overflow alarm device for chemical analyzer according to claim 1, characterized in that: and a separation baffle is arranged on the side wall of the shell and separates the first metal probe from the second metal probe.
3. The waste liquid anti-overflow alarm device for chemical analyzer according to claim 1, characterized in that: the waste liquid recovery unit is a waste liquid groove with a circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022324506.1U CN212906585U (en) | 2020-10-19 | 2020-10-19 | Waste liquid anti-overflow alarm device for chemical analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022324506.1U CN212906585U (en) | 2020-10-19 | 2020-10-19 | Waste liquid anti-overflow alarm device for chemical analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212906585U true CN212906585U (en) | 2021-04-06 |
Family
ID=75260525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022324506.1U Active CN212906585U (en) | 2020-10-19 | 2020-10-19 | Waste liquid anti-overflow alarm device for chemical analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212906585U (en) |
-
2020
- 2020-10-19 CN CN202022324506.1U patent/CN212906585U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5680109A (en) | Impulse line blockage detector systems and methods | |
| CN201362367Y (en) | Health management data interface device for safety alarm and warning system | |
| CN210109088U (en) | Gas sensor probe waterproof construction | |
| CN107063387B (en) | Water fullness detection method and device for water storage equipment and dehumidifier | |
| CA2183043A1 (en) | Carrier Frequency Sensing of Fluids in Vessels | |
| CA2024436A1 (en) | Ultrasonic air-in-line detector self-test technique | |
| CN106562751B (en) | A kind of watering equipment draining fault detection method | |
| CN212906585U (en) | Waste liquid anti-overflow alarm device for chemical analyzer | |
| CN107709997A (en) | A kind of drainage system and sample analyser | |
| CN216020853U (en) | Full sewage case and cleaning device who detects of water | |
| US20120130607A1 (en) | Method for early detection of damage in a motor vehicle transmission | |
| CN109030807A (en) | The detection system and method for needle are blocked up suitable for cleaning separation function | |
| CN100371723C (en) | Short-circuit detecting circuit device | |
| CN104997409B (en) | A kind of coffee machine | |
| CN1815516B (en) | Smoke fog alarm | |
| CN209541852U (en) | A kind of fluid level detection system for in-vitro diagnosis equipment | |
| CN211749027U (en) | Food processing machine | |
| CN209471101U (en) | Double water fetching multi-parameter water quality instrument of Multi probe plug and play based on in-situ monitoring | |
| CN217155487U (en) | Visual flow detection control device | |
| JP3664456B2 (en) | Analyzer with liquid level detection function | |
| CN215534068U (en) | Liquid tank structure and floor cleaning machine | |
| CN221370689U (en) | Integrated water level monitoring water purifier | |
| CN216962365U (en) | Water level detection device and cleaning equipment | |
| CN217787315U (en) | Air pressure monitoring system and monitoring device for monitoring thermal event of power battery pack of electric automobile | |
| CN218885340U (en) | Intelligent energy management equipment for building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |