Reagent weighing system

Abstract

The utility model discloses a reagent weighing system. The reagent weighing system comprises a weighing sensor mounting plate; a U-shaped connecting plate; a reagent bottle; a motor; a small gear; an eccentric shaft driving mechanism; the upper surface of the weighing sensor mounting plate is fixedly connected with connecting blocks in a linear array shape, the connecting blocks are rotatably connected with the lower surface of a U-shaped connecting plate, the upper surface of the U-shaped connecting plate is connected with reagent bottles, and the right surface of the weighing sensor mounting plate is fixedly connected with a motor; a motor is fixedly connected to the left surface of the weighing sensor mounting plate, a small gear is fixedly connected to an output shaft of the motor, the motor is fixedly connected to the front surface of the weighing sensor mounting plate, weighing sensor bodies are fixedly connected to the right surface of the weighing sensor mounting plate in a linear array shape, and the weighing sensor mounting plate, a U-shaped connecting plate, the motor and an eccentric shaft driving mechanism are arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of reagent weighing, in particular to a reagent weighing system. Background Art

[0002] Originally, capacitive sensors were used to detect the liquid in reagent bottles. The height of the liquid level in the reagent bottle was detected from the outside of the reagent bottle. The sensors were installed in shifts, with a sensor placed at every other position. For example, a sensor was installed at 20 cm, a sensor was installed at 30 cm, and so on. The liquid level in the reagent bottle was detected intermittently.

[0003] However, the prior art has the following problems:

[0004] 1. The disadvantage of using a capacitive sensor to detect the liquid in the reagent bottle is that it cannot be detected continuously, thereby reducing the detection efficiency;

[0005] 2. When ordinary weighing sensors are used to detect reagent bottles, the service life of the weighing sensors will be seriously reduced due to the long-term pressure of the weighing sensors on the weighing sensors.

[0006] 3. It is inconvenient to test liquids in different types of reagent bottles. Utility Model Content

[0007] The purpose of the present invention is to provide a reagent weighing system in order to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The reagent weighing system provided by the utility model comprises: a weighing sensor mounting plate; a U-shaped connecting plate; a reagent bottle; a motor; a small gear; an eccentric shaft driving mechanism; the upper surface of the weighing sensor mounting plate is fixedly connected with a connecting block in a linear array shape, the connecting block is rotatably connected to the lower surface of the U-shaped connecting plate, the upper surface of the U-shaped connecting plate is connected to the reagent bottle, the right surface of the weighing sensor mounting plate is fixedly connected with the motor, the output shaft of the motor is fixedly connected with a small gear, the front surface of the weighing sensor mounting plate is fixedly connected with the motor, the right surface of the weighing sensor mounting plate is fixedly connected with a weighing sensor body in a linear array shape, the left surface of the reagent bottle is threadedly connected with a liquid addition input port, the right surface of the reagent bottle is threadedly connected with a liquid suction output port, the liquid suction output port is fixedly connected to the input interface, the lower surface of the U-shaped connecting plate A gasket is fixedly connected to the surface, and the lower surface of the gasket is in contact with the output shaft of the eccentric shaft driving mechanism. The left surface of the weighing sensor mounting plate is fixedly connected to a U-shaped fixing frame, and the left surface of the U-shaped fixing frame is fixedly connected to a display module in a linear array. One end of the weighing sensor body is fixedly connected to one end of the U-shaped connecting plate, and the other end of the weighing sensor body is in the same horizontal plane as the U-shaped connecting plate. The right surface of the weighing sensor mounting plate is fixedly connected to a fixing frame, and the fixing frame is fixedly connected to the motor. The rear surface of the fixing frame is provided with an eccentric shaft driving mechanism, and the eccentric shaft driving mechanism includes an input gear, and the rear surface of the fixing frame is rotatably connected to the eccentric shaft output shaft, and the input gear is drivingly connected to the eccentric shaft output shaft, and the output shaft of the motor is fixedly connected to an output gear, and the output gear is drivingly connected to the input gear.

[0010] Preferably, the control method of the reagent weighing system includes: a weighing sensor module for weighing the reagent bottle and the liquid in the reagent bottle; a control module for controlling the start and stop of the motor 4; a protection module for providing overload protection; a valve body module for controlling the valve opening of the input interface for accurate adjustment; and a remote module for remote control.

[0011] Preferably, the remote modules are provided in a plurality of groups, and at least one remote module in the plurality of groups is configured to sense and analyze environmental conditions and transmit the information to a user terminal via a communication medium.

[0012] Preferably, the protection module further includes a current detection module, a high voltage protection module, a power network protection module and a fault protection module.

[0013] Preferably, the control module further comprises a driving unit, a communication unit and a power supply unit, and the power supply unit supplies power to the control unit, the driving unit and the communication unit.

[0014] Preferably, the weighing sensor module includes a sensor interface and a power supply and communication interface circuit, and the weighing sensor module is connected to the pressure sensor.

[0015] Preferably, the power supply communication interface circuit comprises VCC, GND, TXD and RXD interfaces, and a filter component for reducing electrostatic discharge or electromagnetic interference effects is provided at the input of the sensor interface component.

[0016] Preferably, the weighing sensor module further includes an amplifier for amplifying the converted signal; and a storage unit for storing the set data.

[0017] The beneficial effects are:

[0018] 1. Through the weighing sensor mounting plate, U-shaped connecting plate, motor and eccentric shaft driving mechanism, the output shaft of the motor is controlled by the weighing sensor body, and after it rotates, the input gear is driven to rotate through the output gear. After the eccentric shaft output shaft rotates, the U-shaped connecting plate takes the rotation point of the connecting block as the center and rotates slightly clockwise, so that the U-shaped connecting plate contacts the detection end of the weighing sensor body, and the reagent bottle is tested. According to the density of the liquid and the weight of the reagent bottle, the weight of the liquid in the reagent bottle is detected.

[0019] 2. By setting the liquid adding input port, liquid suction output port and input interface, when the liquid in the reagent bottle needs to be supplemented, the input liquid can be used through the liquid adding input port and the liquid suction output port. At the same time, the setting of the input interface makes it convenient to connect the reagent bottle to the connecting tube such as the hose.

[0020] 3. By setting up a fixing frame, a motor, an eccentric shaft drive mechanism and a U-shaped fixing frame, the motor and the eccentric shaft drive mechanism are fixed at the same time by the fixing frame, which is convenient for providing power to the U-shaped connecting plate. At the same time, a display module can be installed on the left surface of the U-shaped fixing frame, which is convenient for visually observing the name of the liquid in the reagent bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic front view of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall side structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the weighing sensor mounting plate of the utility model when viewed from above;

[0025] Figure 4 This is a schematic diagram of the structure of the position relationship between the ejector rod and the input interface of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the lower surface of the weighing sensor mounting plate of the utility model;

[0027] Figure 6 It is a schematic diagram of the positional relationship between the motor and the eccentric shaft drive mechanism of the utility model;

[0028] Figure 7 This is a schematic diagram of the overall structure of the eccentric shaft drive mechanism of the utility model;

[0029] Figure 8 It is the overall structural framework diagram of the utility model;

[0030] Fig. 9 This is a structural framework diagram of the protection module of the utility model;

[0031] Fig.10 This is a structural framework diagram of a control module of the utility model;

[0032] Fig.11 This is a structural frame diagram of the weighing sensor module of the utility model.

[0033] The description of the accompanying drawings is as follows: 1. Weighing sensor mounting plate; 2. U-shaped connecting plate; 3. Reagent bottle; 4. Motor; 5. Small gear; 6. Eccentric shaft driving mechanism; 61. Input gear; 62. Eccentric shaft output shaft; 7. Connecting block; 8. Weighing sensor body; 9. Liquid adding input port; 10. Liquid aspiration output port; 11. Gasket; 12. Push rod; 13. Input interface; 14. U-shaped fixing bracket; 15. Display module; 16. Fixing bracket; 17. Output gear. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0035] Example 1

[0036] See also Figure 1-Figure 11As shown, the utility model provides a reagent weighing system, which includes: a weighing sensor mounting plate 1; a U-shaped connecting plate 2; a reagent bottle 3; a motor 4; a small gear 5; an eccentric shaft driving mechanism 6; the upper surface of the weighing sensor mounting plate 1 is fixedly connected with a connecting block 7 in a linear array shape, the connecting block 7 is rotatably connected to the lower surface of the U-shaped connecting plate 2, the upper surface of the U-shaped connecting plate 2 is connected to the reagent bottle 3, the right surface of the weighing sensor mounting plate 1 is fixedly connected with the motor 4, the output shaft of the motor 4 is fixedly connected with the small gear 5, the front surface of the weighing sensor mounting plate 1 is fixedly connected with the motor 4, the right surface of the weighing sensor mounting plate 1 is fixedly connected with a weighing sensor body 8 in a linear array shape, and the weighing sensor body 8 is provided with There is a sensor module, through which the weight of the liquid in the reagent bottle 3 is detected. At the same time, a remote control module is arranged in the motor 4. Through the setting of the remote control module, the output shaft of the motor 4 can be controlled to rotate through the external terminal; the left surface of the reagent bottle 3 is threadedly connected with a liquid addition input port 9, and the right surface of the reagent bottle 3 is threadedly connected with a liquid suction output port 10. The setting of the liquid addition input port 9 and the liquid suction output port 10 facilitates the input and output of liquid; a gasket 11 is fixedly connected to the lower surface of the U-shaped connecting plate 2, and the lower surface of the gasket 11 is in contact with the output shaft of the eccentric shaft driving mechanism 6. The lower surface of the U-shaped connecting plate 2 is thickened by the gasket 11, and the cross-section of the output shaft of the eccentric shaft driving mechanism 6 is an eccentric circle After the output shaft rotates, because the gasket 11 and the U-shaped connecting plate 2 lose the support of the output shaft of the eccentric shaft driving mechanism 6, through gravity, the U-shaped connecting plate 2 will slightly rotate clockwise with the rotation point of the connecting block 7 as the center of the circle, so that the U-shaped connecting plate 2 contacts the detection end of the weighing sensor body 8 to weigh the liquid; the upper surface of the U-shaped connecting plate 2 is fixedly connected with a push rod 12, and the right surface of the push rod 12 is penetrated by an input interface 13 and fixedly connected to the input interface 13, and the input interface 13 is slidably connected to the right surface of the liquid suction output port 10, and is connected to the input interface 13 through the push rod 12, and at the same time, the input interface 13 is connected to the liquid suction output port 10, so that the push rod 12 is connected to the reagent bottle 3, so that the push rod 12 can put the reagent bottle 3 is fixed on the U-shaped connecting plate 2, so that the reagent bottle 3 is more stable in the detection and normal state; the left surface of the weighing sensor mounting plate 1 is fixedly connected with a U-shaped fixing frame 14, and the left surface of the U-shaped fixing frame 14 is fixedly connected with a display module 15 in a linear array shape. By fixing multiple display modules 15 on the U-shaped fixing frame 14, it is convenient to mark multiple reagent bottles 3 and convenient for workers to use; one end of the weighing sensor body 8 is fixedly connected to one end of the U-shaped connecting plate 2, and the other end of the weighing sensor body 8 is in the same horizontal plane as the U-shaped connecting plate 2; the right surface of the weighing sensor mounting plate 1 is fixedly connected with a fixing frame 16, and the fixing frame 16 is fixedly connected to the motor 4, and the rear surface of the fixing frame 16 is provided with an eccentric shaft driving mechanism 6;The eccentric shaft driving mechanism 6 includes an input gear 61. The rear surface of the fixed frame 16 is rotatably connected to the eccentric shaft output shaft 62. The input gear 61 is in driving connection with the eccentric shaft output shaft 62. The output shaft of the motor 4 is fixedly connected to the output gear 17. The output gear 17 is in driving connection with the input gear 61.

[0037] The control method of the reagent weighing system includes: a weighing sensor module, which is used to weigh the reagent bottle 3 and the liquid in the reagent bottle 3. The performance indicators of the weighing sensor module mainly include linear error, hysteresis error, repeatability error, creep, zero temperature characteristics and sensitivity temperature characteristics. In various weighing instruments and mass measurement systems, the comprehensive error band is usually used to comprehensively control the accuracy of the sensor, and the comprehensive error band is linked to the weighing instrument error band. At the same time, a sensitive element is set in the weighing sensor module, which directly senses the measured quantity (mass) and outputs other quantities that have a definite relationship with the measured quantity. For example, the elastic body of the resistance strain type weighing sensor converts the mass of the measured object into deformation; the elastic body of the capacitive weighing sensor converts the measured mass into displacement, and the conversion element, also known as the sensing element, converts the output of the sensitive element into a signal that is easy to measure. For example, the resistance strain gauge (or resistance strain gauge) of the resistance strain type weighing sensor converts the deformation of the elastic body into a change in resistance; the capacitor of the capacitive weighing sensor converts the displacement of the elastic body into a change in capacitance. Sometimes some elements have the functions of both sensitive elements and conversion elements. For example, the piezoelectric material of the voltage type weighing sensor outputs electricity while deforming under the action of external load; the control module is used to control the start and stop of the motor 4; the protection module is used to provide overload protection; the valve body module is used to control the valve opening of the input interface 13 for accurate adjustment, and is composed of two main assemblies: the valve body assembly and the actuator assembly (or actuator system), which are divided into four major series: single-seat series control valve, double-seat series control valve, sleeve series control valve and self-actuated series control valve. The variations of the four types of valves can lead to many different applicable structures, each of which has its own special applications, characteristics, advantages and disadvantages.Although some control valves have wider application conditions than other valves, control valves cannot be applied to all working conditions, so as to jointly build the best solution for enhancing performance and reducing costs; remote module, a module for remote control, multiple groups of remote modules are provided, at least one remote module of the multiple groups of remote modules is configured to sense and analyze environmental conditions and transmit information to the user terminal through a communication medium, the protection module further includes a current detection module, a high-voltage protection module, a power network protection module and a fault protection module, a control module, the control module uses a controller U8, and the controller U8 is connected to the storage chip; the controller U8 is connected to the communication unit, and the control module further includes a drive unit, a communication unit (the communication unit includes a transceiver chip U6, and the transceiver chip U6 is I SO308) and a power supply unit, the power supply unit supplies power to the control unit, the drive unit and the communication unit. The communication unit supports the Modbus communication protocol through the RS485 transceiver chip, can receive control instructions from the remote end, and realize precise control through the control unit. The weighing sensor module includes a sensor interface, a filter circuit (the filter circuit is composed of capacitor C16, capacitor C23, capacitor C20, resistor R4, resistor R5 and capacitor C18), AD acquisition circuit, MCU circuit and power supply communication interface circuit, VCC has a voltage conversion function. GND is the abbreviation of the ground terminal of the wire. The TXD and RXD indicator lights reflect the status of data transmission between the modem and the computer. The weighing sensor module is connected to the pressure sensor. The power supply communication interface circuit includes VCC, GND, TXD and RXD interfaces. Multiple data samples corresponding to physical parameters related to vehicle components are obtained from the sensor through the sensor interface component. The filter component at the input of the sensor interface component reduces the effect of electrostatic discharge or electromagnetic interference. The filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out a specific frequency point in the power line or frequencies other than the frequency point to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency is eliminated. The weighing sensor module also includes an amplifier for amplifying the converted signal; a storage unit for storing the set data.

[0038] With the above structure, when it is necessary to weigh the liquid in the reagent bottle 3, after the motor 4 is started by the remote control module, the output shaft of the motor 4 drives the output gear 17 to rotate, and the eccentric shaft output shaft 62 is driven to rotate through the transmission of the input gear 61. Since the output shaft of the eccentric shaft driving mechanism 6 is limited by the fixed frame 16, after the eccentric shaft output shaft 62 rotates, it will drive the output shaft to move in an arc. After the gasket 11 loses the support of the output shaft, the right end of the U-shaped connecting plate 2 will rotate slightly downward, and the lower surface of the U-shaped connecting plate 2 will contact the weighing end of the weighing sensor body 8, and the reagent bottle 3 and the liquid in the reagent bottle 3 are weighed at the same time through the weighing sensor body 8.

[0039] The beneficial effect of the utility model is that the output shaft of the motor 4 is controlled by the weighing sensor body 8 to rotate, and the input gear 61 is driven to rotate through the output gear 17. After the eccentric shaft output shaft 62 rotates, the U-shaped connecting plate 2 slightly rotates clockwise with the rotation point of the connecting block 7 as the center of the circle, so that the U-shaped connecting plate 2 contacts the detection end of the weighing sensor body 8, and the reagent bottle 3 is detected. According to the density of the liquid and the weight of the reagent bottle 3, the weight of the liquid in the reagent bottle 3 is detected.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. Reagent weighing system, characterized in that: include: Load cell mounting plate (1); U-shaped connecting plate (2); Reagent bottles (3); Motor (4); Small gears (5); Eccentric shaft driving mechanism (6); The upper surface of the weighing sensor mounting plate (1) is fixedly connected with a connecting block (7) in a linear array shape, the connecting block (7) is rotatably connected to the lower surface of the U-shaped connecting plate (2), the upper surface of the U-shaped connecting plate (2) is connected to the reagent bottle (3), the upper surface of the U-shaped connecting plate (2) is fixedly connected with a push rod (12), the right surface of the push rod (12) is penetrated by an input interface (13) and is fixedly connected to the input interface (13), the input interface (13) is slidably connected to the right surface of the liquid aspiration output port (10), and the weighing sensor The right surface of the mounting plate (1) is fixedly connected to a motor (4), the output shaft of the motor (4) is fixedly connected to a small gear (5), the front surface of the weighing sensor mounting plate (1) is fixedly connected to the motor (4), the right surface of the weighing sensor mounting plate (1) is fixedly connected to a weighing sensor body (8) in a linear array, the left surface of the reagent bottle (3) is threadedly connected to a liquid addition input port (9), the right surface of the reagent bottle (3) is threadedly connected to a liquid suction output port (10), and the lower surface of the U-shaped connecting plate (2) is fixedly connected to a gasket (11), the lower surface of the gasket (11) contacts the output shaft of the eccentric shaft driving mechanism (6), the left surface of the weighing sensor mounting plate (1) is fixedly connected to a U-shaped fixing frame (14), the left surface of the U-shaped fixing frame (14) is fixedly connected to a display module (15) in a linear array, one end of the weighing sensor body (8) is fixedly connected to one end of the U-shaped connecting plate (2), the other end of the weighing sensor body (8) is in the same horizontal plane as the U-shaped connecting plate (2), and the right surface of the weighing sensor mounting plate (1) is fixedly connected to the U-shaped connecting plate (2). A fixed frame (16) is fixedly connected to the motor (4); an eccentric shaft driving mechanism (6) is arranged on the rear surface of the fixed frame (16); the eccentric shaft driving mechanism (6) comprises an input gear (61); an eccentric shaft output shaft (62) is rotatably connected to the rear surface of the fixed frame (16); the input gear (61) is transmission-connected to the eccentric shaft output shaft (62); the output shaft of the motor (4) is fixedly connected to an output gear (17); the output gear (17) is transmission-connected to the input gear (61).

2. The reagent weighing system according to claim 1, characterized in that: include: A weighing sensor module, used for weighing the reagent bottle (3) and the liquid in the reagent bottle (3); A control module, used for controlling the start and stop of the motor (4); Protection module, used to provide overload protection; A valve body module, used to control the valve opening of the input interface (13) for accurate adjustment; Remote module, a module used for remote control.

3. The reagent weighing system according to claim 2, characterized in that: The remote modules are provided in a plurality of groups, and at least one remote module in the plurality of groups is configured to sense and analyze environmental conditions and transmit the information to a user terminal through a communication medium.

4. The reagent weighing system according to claim 3, characterized in that: The protection module further includes a current detection module, a high voltage protection module, a power network protection module and a fault protection module.

5. The reagent weighing system according to claim 4, characterized in that: The control module further includes a driving unit, a communication unit and a power supply unit, and the power supply unit supplies power to the control unit, the driving unit and the communication unit.

6. The reagent weighing system according to claim 5, characterized in that: The weighing sensor module comprises a sensor interface, a filtering circuit and a power supply communication interface circuit, and the weighing sensor module is connected to the pressure sensor.

7. The reagent weighing system according to claim 6, characterized in that: The power supply communication interface circuit includes VCC, GND, TXD and RXD interfaces, and a filter component is provided at the input of the sensor interface component to reduce electrostatic discharge or electromagnetic interference effects.

8. The reagent weighing system according to claim 7, characterized in that: The weighing sensor module also includes an amplifier for amplifying the converted signal; and a storage unit for storing the set data.

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