Novel microplate reader with self-cleaning light source lamp function

Abstract

A novel microplate reader with a light source lamp self-cleaning function comprises a microplate reader body, a motor reducing mechanism, an electric air extractor, an electromagnetic valve, a cleaning brush and a relay, the cleaning brush comprises a brush rod and a brush head, bristles are arranged on the brush head, the side end of the brush head and one side of the brush rod are installed together, and the motor reducing mechanism is installed on one side of the upper end in a detection bin of the microplate reader body; a connecting pipe is mounted at the lower end of a rotating shaft of the motor reducing mechanism; a fixing plate is mounted at the rear outer side end of the microplate reader body, a dust pipe is mounted on the rear side of a shell of the microplate reader body, an electric air extractor is mounted on the fixing plate, an air inlet pipe of the electric air extractor is connected with an exhaust port of an electromagnetic valve, and an air inlet of the electromagnetic valve is connected with the dust pipe; and the relay is arranged in the element bin. Detection personnel do not need to clean a lampshade of the light source lamp, the frequency of manually cleaning the interior of the detection bin by the detection personnel is reduced as much as possible, convenience is brought to the detection personnel, and it is guaranteed that sample detection is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a novel enzyme marker with a self-cleaning light source lamp function. Background Art

[0002] The microplate reader is a crucial medical device with significant application value. It is widely used in hospitals, universities, research institutes, disease control centers, technical quality supervision bureaus, animal and plant quarantine agencies, and numerous other industries, including the food and feed industry. In a microplate reader application, the inspector opens the door at the lower front end of the testing chamber and places the sample to be tested (contained in a plastic microplate) on a tray inside the chamber. After closing the door, the inspector controls the device by operating the corresponding buttons on the upper front end of the housing to test the sample. Currently, there are many types of microplate readers, primarily including grating-type and filter-type microplate readers. Specifically, the light emitted by the light source lamp in the middle of the upper end of the detection chamber of the microplate reader body (only the light source lamp is installed in the middle of the upper end of the detection chamber of the microplate reader) passes through the grating module or the filter module (the grating module or the filter module processes the light into a monochromatic light beam) and enters the sample to be tested in the plastic microplate. Then part of the monochromatic light is absorbed by the sample, and the other part passes through the sample and shines on the photoelectric detector at the lower end of the microplate reader through the transparent tray. The photoelectric detector inputs the light signals of different samples to be tested and of different intensities into the signal input end of the microplate reader conversion module. The conversion module converts them into corresponding electrical signals. After pre-amplification, logarithmic amplification, analog-to-digital conversion and other signal processing, the electrical signals are sent to the microprocessor system for data processing and calculation. Finally, the data results of the test samples (such as allergens, thyroid, inorganic toxins, etc.) are displayed on the display screen, or the data results are printed out through an external printer.

[0003] Among the various components of a microplate reader, the performance of the light source and the cleanliness of the test chamber directly impact the sample's detection results. Specifically, if the light source (installed within a flat lampshade) is not promptly removed after prolonged use (due to the need to open and close the chamber door, external dust inevitably enters the test chamber, and plastic microplates and other materials may also introduce dust into the chamber), the light emitted by the light source will weaken when it passes through the lampshade and hits the light-receiving point of the grating module or filter module. Consequently, the intensity of the monochromatic light beam that is subsequently processed by the grating module or filter module and then illuminates the sample to be tested will also be relatively reduced, adversely affecting the accuracy of the test data. (The microplate reader's microprocessor system processes and calculates sample data based on the light intensity data generated by the light source. Therefore, if the light emitted by the light source is weaker than the normal baseline data, it will affect the sample's test data and cause corresponding deviations.) With the development of industrial technology, the technology of enzyme markers has also made certain progress. For example, the authorized patent of my country with patent number "201721282838.X" and patent name "A new type of enzyme marker" states that "the utility model has a low detection standard limit, short response time, high sensitivity, good stability, simple structure, low cost, and can meet the intelligent and personalized needs of communities and families." As can be seen from the above, although the comparative patent has achieved the technical effect of the invention to a certain extent, it is limited by the structure. Like other equipment in this field, it needs to be manually cleaned by humans, such as the internal light source lamp, dust adhered to the bottom of the lampshade, and dust in the detection chamber. This will more or less cause inconvenience to the testers. Utility Model Content

[0004] In order to overcome the disadvantages of the existing enzyme labeling instrument that, due to structural limitations, manual cleaning is required for the detection chamber and the lampshade of the light source lamp inside it, as described in the background, the utility model provides a new enzyme labeling instrument with a self-cleaning light source lamp function based on the enzyme labeling instrument body. Under the joint action of relevant mechanisms in application, the detection personnel can conveniently control the brush head by means of the power switch to perform dust removal and cleaning on the lower end of the lampshade of the light source lamp, and can extract the dust in the detection chamber (including the dust generated by cleaning the lampshade of the light source lamp) through the negative pressure vacuum pump. On the basis of not requiring the detection personnel to clean the lampshade of the light source lamp, the frequency of manual cleaning of the detection chamber by the detection personnel is reduced as much as possible, thereby bringing convenience to the detection personnel and ensuring that the sample detection data is more accurate as much as possible.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A new type of microplate reader with a self-cleaning light source function includes an microplate reader body, a motor reduction mechanism, an electric vacuum pump, an electromagnetic valve, a cleaning brush, and a relay. The cleaning brush includes a brush rod and a brush head, the brush head has bristles, the side end of the brush head and one side of the brush rod are installed together, and the motor reduction mechanism is installed on one side of the upper end of the detection chamber of the microplate reader body; a connecting pipe is installed at the lower end of the rotating shaft of the motor reduction mechanism, and the connecting pipe is a hollow special-shaped structure. A special-shaped plug rod is installed on the other side of the brush rod, a right magnet is installed on the side of the plug rod, and a left magnet is installed on one side of the connecting pipe. The plug rod is inserted into the connecting pipe and the right magnet and the left magnet are attracted together; a fixed plate is installed at the rear outer end of the microplate reader body, a dust pipe is installed on the rear side of the shell of the microplate reader body, the electric vacuum pump is installed on the fixed plate, the air inlet pipe of the electric vacuum pump is connected to the exhaust port of the electromagnetic valve, and the air inlet of the electromagnetic valve is connected to the dust pipe; the electrical appliance is installed in the component compartment of the microplate reader body; the two normally open contact ends of the relay are electrically connected to the power input end of the electric vacuum pump.

[0007] Furthermore, the outer diameters of the left magnet and the right magnet are consistent.

[0008] Furthermore, the outer diameter of the insertion rod is smaller than the inner diameter of the connecting pipe.

[0009] Furthermore, the transverse length of the bristles on the brush head is greater than the radius of the lampshade of the light source lamp of the microplate reader body, and the upper end height of the bristles is higher than the lower end height of the lampshade of the light source lamp.

[0010] Furthermore, the solenoid valve is a normally closed valve core solenoid valve.

[0011] Furthermore, the length of the brush head and the connecting tube is less than half of the front-to-back width of the upper end of the detection chamber.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: the present invention is based on the enzyme labeling instrument body, etc., and during application, the testing personnel can conveniently control the motor reduction mechanism through the power switch to drive the bristles of the brush head to rotate and remove dust from the lower end of the lampshade of the light source lamp, and can use the negative pressure of the electric vacuum pump to extract the dust in the testing chamber (including the dust generated by cleaning the lampshade of the light source). In this way, since the testing personnel do not need to clean the lampshade of the light source lamp, the frequency of manual cleaning of the testing chamber by the testing personnel is reduced as much as possible, which brings convenience to the testing personnel and ensures that the sample testing data is more accurate and reliable as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2It is a structural diagram between the electric air pump and the electromagnetic valve of the utility model.

[0016] Figure 3 The utility model is a schematic diagram of a partial planar structure in which the upper ends of the bristles are located at the lower end of the lampshade.

[0017] Figure 4 It is a schematic diagram of the partial planar structure of the utility model in which the upper end of the bristles and the lower end of the lampshade are separated.

[0018] Figure 5 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0019] Figure 1 、 2 As shown in , 3, 4, and 5, a new type of microplate reader with a self-cleaning light source lamp includes a microplate reader body 1 based on a grating module, a motor reduction mechanism M1, an electric vacuum pump, a solenoid valve D1, a power switch K, a cleaning brush 2, a power module V1, and a relay J1. The cleaning brush 2 includes a brush rod 21 and a brush head 22. The upper end of the brush head 22 has cotton bristles 23. The middle part of the left end of the brush head 22 and the right end of the brush rod 21 are welded together. The shell of the motor reduction mechanism M1 is vertically distributed and installed by bolts on the right side of the middle part of the upper end of the detection chamber 101 of the microplate reader body and on the right side of the light source lamp of the microplate reader body 1; an "L"-shaped connecting pipe 3 is welded to the lower end of the rotating shaft of the motor reduction mechanism M1, and the connecting pipe 3 is a hollow rectangular structure. A rectangular plug rod 24 is welded to the middle part of the left side of the brush rod. The left end of the brush rod 24 is located on the outside of the right side of the plug rod and is glued with a circular permanent ring right magnet 25. The right end of the connecting pipe is glued with a A circular permanent ring-shaped left magnet 4, the insertion rod 24 is inserted into the connecting tube 3 and the left side of the right magnet 25 and the right side of the left magnet 4 are attracted together (the magnet has a good fixing effect. On the basis of convenient connection of the brush head and the connecting tube, it can also facilitate the removal of the brush head and the cleaning of the bristles with water after the bristles are dirty); a fixing plate 102 is welded to the lower middle part of the rear outer end of the enzyme labeling instrument body, and a dust pipe 103 that communicates with the detection chamber is longitudinally welded to the upper middle part of the rear end of the shell of the enzyme labeling instrument body. The motor of the electric vacuum pump is longitudinally mounted on the fixing plate 102 by bolts, and the upper end of the air inlet pipe 51 of the electric vacuum pump is threadedly connected to the exhaust port of the solenoid valve D1. The air inlet port of the solenoid valve D1 and the upper end of the dust pipe are connected by a "˥"-shaped connecting tube 5, and the exhaust pipe 52 of the electric vacuum pump is located at the rear side; the power module V1, power switch K, and relay J1 are installed in the component compartment of the enzyme labeling instrument body and the handle of the power switch is located at the front outer end of the component compartment.

[0020] Figure 1 、 2As shown in Figures 3, 4, and 5, the right end of the left magnet 4 and the left end of the right magnet 25 have opposite polarities, and their outer diameters are identical. The outer diameter of the insertion rod 24 is slightly smaller than the inner diameter of the connecting tube 3 by 0.2 mm. The bristles 23 on the brush head have a transverse length greater than the radius of the light source lampshade 104, and the upper end of the bristles 23 is slightly higher than the lower end of the light source lampshade 104 by 3 mm (the bristles are flexible in both directions, thus effectively cleaning the lampshade). The outer shape of the bristles 23 is consistent with the lower end of the light source lampshade 104. Solenoid valve D1 is a normally closed valve core solenoid valve. The electric vacuum pump (mature technology) includes a motor M, a volute 53, and an impeller (not shown). The exhaust pipe 52 and the intake pipe 51 are mounted in the rear middle and upper middle portions of the volute, respectively. The rear end of the motor M is mounted together with the front outer side of the volute 53, and the motor shaft rotates through the opening in the front middle portion of the volute 53 and is located within the volute 53. The impeller is tightly fitted around the front end of the shaft and is located within the sealed volute 53. The combined length of the right end of the brush head 22 and the left end of the connecting tube 3 is less than half the front-to-back width of the upper end of the detection chamber 101 (to ensure that the brush head does not strike the upper side of the detection chamber during 360-degree rotation).

[0021] Figure 5 As shown in the figure, the power input terminals 1 and 2 of the power module V1 and the two control power input terminals of the relay J1 are connected to the two poles of the AC 220V power supply via wires respectively; the positive power output terminal 3 of the power module V1 is connected to the power input terminal of the power switch K via a wire, the power output terminal of the power switch K is connected to the relay J1 and the positive power input terminal of the solenoid valve D1 and the motor reduction mechanism M1 via a wire, the negative power output terminal 4 of the power module V1 is connected to the negative power input terminal of the solenoid valve D1, the relay J1, and the motor reduction mechanism M1 via a wire, and the two normally open contact terminals of the relay J1 are connected to the two power input terminals of the motor M of the electric vacuum pump via wires respectively.

[0022] Figure 1 、 2As shown in Figures 3, 4, and 5, the new microplate reader body 1 based on the grating module, the inspector opens the door 105 at the lower front end of the detection chamber, and then places the sample to be tested (located in the plastic microplate) on the tray (not shown in the figure) inside the detection chamber 101. After closing the door 105, the inspector controls the device to test the sample by operating the corresponding button 106 at the upper front end of the shell of the microplate reader body. Specifically, the light emitted by the light source lamp in the middle of the upper end of the detection chamber of the microplate reader body (only the light source lamp is installed in the middle of the upper end of the detection chamber of the microplate reader) passes through the grating module (the grating module processes the light into a monochromatic light beam) and enters the sample to be tested in the plastic microplate (not shown in the figure). Then, part of the monochromatic light is absorbed by the sample, and the other part passes through the sample and illuminates the photoelectric detector (not shown in the figure) at the lower end of the microplate reader body through the transparent tray. The photoelectric detector inputs the light signals of different samples to be tested and of different intensities into the signal input end of the microplate reader conversion module (not shown in the figure). The conversion module converts the light signals into corresponding electrical signals. After pre-amplification, logarithmic amplification, analog-to-digital conversion and other signal processing, the electrical signals are sent to the microprocessor system (not shown in the figure) for data processing and calculation. Finally, the data results of the test samples (such as allergens, thyroid, inorganic toxins, etc.) are displayed on the display screen 107, or the data results are printed out through an external matching printer.

[0023] Figure 1 、 2As shown in Figures 3, 4, and 5, after 220V power enters the power input terminal of power module V1, the power output terminal of power module V1 outputs DC 24V power to the power input terminal of power switch K. When the staff needs to clean the lampshade 104 and the interior of the inspection chamber 101, they turn on the internal switch K of the power supply. The solenoid valve D1 is energized to open its valve core, and the relay J1 is energized to close its control power input terminal and normally open contact terminal (the electric vacuum pump is energized). The motor reduction mechanism M1 is energized to operate, and its rotating shaft drives the brush head to rotate through the connecting pipe. As the bristles 23 on the upper part of the brush head continuously pass by the lower end of the lampshade 104, they can effectively brush out dust from the lower end of the lampshade 104 (because the bristles have a certain height, the side ends of the lampshade can also be cleaned). When the electric vacuum pump's motor is energized (the impeller rotates), its impeller (blades) generates negative pressure to draw dust from the inspection chamber (including dust generated by cleaning the light source lampshade). This is then discharged into the air through the open solenoid valve D1 (intake pipe, exhaust pipe). Generally, after approximately two minutes of cleaning, turn off the power switch K. This de-energizes the solenoid valve D1, closes the valve core (preventing external dust from entering the inspection chamber), de-energizes the motor reduction mechanism M1, and stops the brush head from rotating. De-energizing relay J1 also disables the electric vacuum pump. In practical situations, after cleaning is complete, personnel can open the chamber door 105 and visually inspect the brush head's position. If necessary, turn on the power switch K. Turn off the power switch only when the motor reduction mechanism has driven the brush head to the right side of the lampshade to prevent it from being positioned under the lampshade and interfering with subsequent testing. After a period of time, personnel can open the chamber door, remove the brush head horizontally, and clean the bristles with water (after cleaning and drying). Through the above, the new type not only does not require the inspectors to clean the lampshade of the light source lamp, but also reduces the frequency of manual cleaning of the inspection chamber by the inspectors as much as possible, brings convenience to the inspectors, and ensures that the sample inspection data is more accurate and reliable as much as possible. Figure 5 In the example, relay J1 is a DC24V converter; power module V1 is a finished product that converts 220V AC to 24V DC; solenoid valve D1 is a 2W normally closed solenoid valve; and motor reduction mechanism M1 is a finished product of a coaxial motor gear reducer with a DC operating voltage of 24V and a power of 20W (rotating shaft speed of 10 rpm). Motor M has a power of 120W. The components used in this application are all existing, mature industrial products, and this application will not elaborate on the working principles of each component.

[0024] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A new type of microplate reader with a self-cleaning light source lamp function, comprising a microplate reader body, a motor reduction mechanism, an electric air pump, a solenoid valve, a cleaning brush, and a relay, characterized in that: The cleaning brush includes a brush rod and a brush head, the brush head has bristles, the side end of the brush head and one side of the brush rod are installed together, and the motor reduction mechanism is installed on the upper side of the detection chamber of the enzyme marker body; the lower end of the rotating shaft of the motor reduction mechanism is installed with a connecting pipe, and the connecting pipe is a hollow special-shaped structure. A special-shaped plug-in rod is installed on the other side of the brush rod, and a right magnet is installed on the side of the plug-in rod. A left magnet is installed on one side of the connecting tube, and the plug-in rod is inserted into the connecting tube and the right magnet and the left magnet are attracted together; a fixed plate is installed at the rear outer end of the enzyme marker body, and a dust pipe is installed on the rear side of the shell of the enzyme marker body, and the electric vacuum pump is installed on the fixed plate, and the air inlet pipe of the electric vacuum pump is connected to the exhaust port of the solenoid valve, and the air inlet of the solenoid valve is connected to the dust pipe; the electrical appliance is installed in the component compartment of the enzyme marker body; the two normally open contact ends of the relay are electrically connected to the power input end of the electric vacuum pump.

2. A novel microplate reader with a self-cleaning light source lamp function according to claim 1, characterized in that: The outer diameters of the left and right magnets are the same.

3. The novel microplate reader with a self-cleaning light source lamp according to claim 1, characterized in that: The outer diameter of the insertion rod is smaller than the inner diameter of the connecting pipe.

4. The novel microplate reader with a self-cleaning light source lamp according to claim 1, characterized in that: The transverse length of the bristles on the brush head is greater than the radius of the lampshade of the light source lamp of the enzyme marker body, and the upper end height of the bristles is higher than the lower end height of the lampshade of the light source lamp.

5. The novel microplate reader with a self-cleaning light source lamp function according to claim 1, characterized in that: The solenoid valve is a normally closed spool solenoid valve.

6. The novel microplate reader with a self-cleaning light source lamp function according to claim 1, characterized in that: The length of the brush head and the connecting tube is less than half of the front-to-back width of the upper end of the detection chamber.

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