CN217424530U

CN217424530U - Weighing and balancing device

Info

Publication number: CN217424530U
Application number: CN202221124807.2U
Authority: CN
Inventors: 崔品; 程延年
Original assignee: Shenzhen Ruifa Biotechnology Co ltd
Current assignee: Shenzhen Ruifa Biotechnology Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-09-13
Anticipated expiration: 2032-05-11

Abstract

The utility model relates to a weigh balancing unit, the on-line screen storage device comprises a base, the top surface of base is provided with the test tube and places the district, the district of weighing, the instruction zone, the test tube is placed the district including setting up a plurality of test tube grooves on the base, correspond the first sign portion that every test tube groove set up on the base, the tank bottom of every test tube groove all upwards is provided with micro-gap switch, the district of weighing is including setting up pressure sensor on the base, the test tube support of setting on pressure sensor, the instruction zone includes the second sign portion that corresponds every first sign portion setting on the base, correspond the display screen that every second sign portion set up on the base, be provided with control circuit board on the base, the last MCU that is provided with of control circuit board. The utility model discloses a be provided with micro-gap switch in the test-tube groove, the experimenter can take the quality of this test tube of automatic recording when the test tube of test-tube inslot weighs, and can indicate the trim data on the display screen after having weighed the quality of all test tubes, and the experimenter can accomplish the trim fast according to the suggestion.

Description

Weighing and balancing device

Technical Field

The utility model belongs to the technical field of centrifuge auxiliary assembly technique and specifically relates to a weigh balancing unit.

Background

The centrifugal machine for scientific experiments is equipment for providing overload environment by rotating a rotating part around a rotating shaft, but the solution amount of a sample is not fixed in the experiments, and the centrifugal machine is generally required to be balanced to ensure the stable operation of the centrifugal machine. If the sample is not trimmed, the vibration of the motor and the centrifugal rotor is intensified, so that high noise is generated and the service life of the centrifugal machine is shortened.

The conventional balancing method is usually to use a tray balance for balancing, but the tray balance is only suitable for two-to-two balancing, the balancing efficiency is very low when the number of samples is large, the mass between different samples cannot be recorded and compared in batches, and an experimenter cannot be intuitively prompted to balance.

SUMMERY OF THE UTILITY MODEL

To the current not enough, the utility model provides a weigh balancing unit.

The utility model provides a technical scheme that its technical problem adopted is: the weighing and balancing device comprises a base, wherein a test tube placing area, a weighing area and an indicating area are arranged on the top surface of the base, the test tube placing area comprises a plurality of test tube grooves arranged on the base and first identification parts arranged on the base corresponding to the test tube grooves, each first identification part is different, a micro switch is upwards arranged at the bottom of each test tube groove, the weighing area comprises a pressure sensor arranged on the base and a test tube support arranged on the pressure sensor, the indicating area comprises second identification parts arranged on the base corresponding to the first identification parts and a display screen arranged on the base corresponding to the second identification parts, each second identification part is identical to the corresponding first identification part, a control circuit board is arranged on the base, an MCU is arranged on the control circuit board, and the pressure sensor and each micro switch are, Each display screen is electrically connected with the control circuit board.

Preferably, the test tube slot, the display screen, the first identification part and the second identification part are all arranged in a rectangular array.

Preferably, the base is provided with a key switch, and the key switch control circuit board is electrically connected.

Preferably, the base is provided with a cavity, and the control circuit board is arranged in the cavity.

Preferably, the placing area is arranged at the left part of the base, the weighing area and the indicating area are both arranged at the right part of the base, and the weighing area is arranged in front of the indicating area.

Preferably, a buzzer is arranged on the base and electrically connected with the control circuit board.

Preferably, a level gauge is fixedly arranged on the top surface of the base.

Preferably, the level is a disk bubble level.

The beneficial effects of the utility model reside in that: the utility model discloses a be provided with micro-gap switch in the test-tube groove, the experimenter can take the quality of this test tube of automatic recording when the test tube of test-tube inslot weighs, and can indicate the trim data on the display screen after having weighed the quality of all test tubes, and the experimenter can accomplish the trim fast according to the suggestion.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention;

fig. 2 is a front cross-sectional schematic view of an embodiment of the present invention;

part names and serial numbers in the figure: 1-base 11-cavity 2-test tube placing area 21-test tube groove 211-microswitch 22-first identification part 3-weighing area 31-pressure sensor 32-test tube support 4-indication area 41-second identification part 42-display screen 5-control circuit board 51-MCU 6-key switch 7-buzzer 8-level meter.

Detailed Description

To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be further described with reference to the accompanying drawings and embodiments, and clearly described in the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Furthermore, what is mentioned in the present invention is as follows: the terms "center", "upper", "lower", "left", "right", "front", "back", "inner", "outer", "horizontal", "vertical", and the like are used only with reference to the orientation or positional relationship of the attached drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used only for the purpose of clearly describing the utility model, but not for indicating or implying that the device or element must have a specific orientation, and therefore, should not be construed as limiting the utility model.

The terms "first," "second," "third," and the like are used solely to distinguish one from another in the description and are not to be construed as indicating or implying relative importance, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The embodiment of the utility model is as shown in fig. 1-2, a weigh balancing unit, including base 1, the top surface of base 1 is provided with test tube placing area 2, weighing area 3, indicating area 4, test tube placing area 2 includes a plurality of test tube slots 21 that set up on base 1, correspond the first sign portion 22 that each test tube slot 21 set up on base 1, every first sign portion 22 is all different, the test tube that needs the balancing is placed in the test tube slot 21, every test tube slot 21 is marked by corresponding first sign portion 22, every first sign portion 22 is all different; in a preferred embodiment, each first identifier 22 is a numbered icon; a microswitch 211 is arranged upwards at the bottom of each test tube groove 21, and when a test tube is placed in the test tube groove 21, the bottom of the test tube is pressed on the microswitch 211 corresponding to the bottom of the test tube groove 21, so that the microswitch 211 can be closed; when the test tube placed in the test tube groove 21 is taken out, no object is pressed by the microswitch 211, and the microswitch 211 is restored to the off state; whether a test tube exists in the test tube groove 21 can be judged through the on and off states of the microswitch 211; in a preferred embodiment, the microswitch 211 is a normally open microswitch 211 of HZ-D2-D00 DX; the weighing area 3 comprises a pressure sensor 31 arranged on the base 1 and a test tube bracket 32 arranged on the pressure sensor 31, and when a test tube is placed on the test tube bracket 32, the pressure sensor 31 can weigh the test tube; the indication area 4 comprises second identification parts 41 arranged on the base 1 corresponding to each first identification part 22 and display screens 42 arranged on the base 1 corresponding to each second identification part 41, each second identification part 41 is the same as the corresponding first identification part 22, the base 1 is provided with a control circuit board 5, the control circuit board 5 is provided with an MCU51, and the pressure sensor 31, each microswitch 211 and each display screen 42 are electrically connected with the control circuit board 5; when the device is used, the device is firstly placed on a horizontal operating platform to reduce errors of experimental data, then all test tubes needing to be weighed and balanced are placed in the test tube groove 21, the micro switch 211 in the test tube groove 21 in which the test tubes are placed is closed, and the MCU51 controls the corresponding display screen 42 to work; then, a weighing step is carried out, the test tubes in each test tube groove 21 are taken out one by one and placed on the test tube support 32 for weighing, after weighing is finished, the test tubes are placed back into the corresponding test tube grooves 21, when the test tubes in the test tube grooves 21 are taken out, the micro switches 211 in the corresponding test tube grooves 21 are switched off, the MCU51 can judge the serial numbers of the taken-out test tubes, when the test tubes are placed on the test tube supports 32 for weighing, the MCU51 displays the quality data of the test tubes on the corresponding display screens 42 in real time, and simultaneously records the quality data and the corresponding test tube serial numbers into the MCU 51; after all the test tubes are weighed, carrying out a balancing step, comparing the mass of all the test tubes by the MCU51, taking a minimum value/a middle value/a maximum value, subtracting the value from the mass data of all the test tubes, displaying the output difference result on a corresponding screen, and balancing when the output result is not zero; the test tube that will need the balancing is taken out from test tube slot 21 and is placed on test tube holder 32 and weigh, carry out imbibition or liquid feeding to the test tube, and the quality data of this test tube changes, and MCU51 calculates the difference result in real time this moment to show the difference result in real time on corresponding display screen 42, when the difference is zero the completion of balancing promptly, when the test tube completion of all test tube slots 21 was leveled, can accomplish the balancing work fast.

In a further improvement, as shown in fig. 1, the test tube slot 21, the display screen 42, the first identification portion 22 and the second identification portion 41 are all arranged in a rectangular array, so that experimenters can visually distinguish the corresponding relationship.

Further improvement, as shown in fig. 1, a key switch 6 is arranged on the base 1, the key switch 6 is electrically connected with the control circuit board 5, in a preferred embodiment, the key switch 6 comprises a weighing key switch 6 and a balancing key switch 6, the weighing step can be carried out by pressing the weighing key switch 6, the balancing step can be carried out by pressing the balancing key switch 6, and the experimenter can use the equipment conveniently.

In a further improvement, as shown in fig. 2, the base 1 is provided with a cavity 11, and the control circuit board 5 is arranged in the cavity 11, so that water can be effectively prevented from splashing on the control circuit board 5, and the control circuit board 5 is prevented from being short-circuited or even damaged.

Further improvement, as shown in fig. 1 to 2, the placing area is arranged at the left part of the base 1, the weighing area 3 and the indicating area 4 are both arranged at the right part of the base 1, and the weighing area 3 is arranged in front of the indicating area 4, so that the operation of experimenters is facilitated.

Further improvement, as shown in fig. 1, a buzzer 7 is arranged on the base 1, the buzzer 7 is electrically connected with the control circuit board 5, and when the difference value is zero, namely the leveling is completed, the buzzer 7 sends out buzzing to prompt experimenters, so that the leveling is facilitated.

In a further improvement, as shown in fig. 1, a level 8 is fixedly arranged on the top surface of the base 1, and in a preferred embodiment, the top surface of the base 1, the pressure sensor 31, the bottom surface of the test tube holder 32 and the level 8 are all parallel to each other, the center of gravity of the test tube holder 32 is located at the center of the top surface of the pressure sensor 31, and the level 8 is beneficial for experimenters to observe the levelness of the device.

In a further refinement, as shown in fig. 1, the level 8 is a disk spirit level, which is capable of measuring the levelness of a plane, and is suitable for use in this scenario.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A weight trim arrangement, characterized by: comprises a base, wherein the top surface of the base is provided with a test tube placing area, a weighing area and an indicating area, the test tube placing area comprises a plurality of test tube grooves arranged on the base, first identification parts are arranged on the base corresponding to the test tube grooves, each first identification part is different, the bottom of each test tube groove is upwards provided with a micro switch, the weighing area comprises a pressure sensor arranged on the base and a test tube bracket arranged on the pressure sensor, the indication area comprises second identification parts which are arranged on the base corresponding to each first identification part, a display screen which is arranged on the base corresponding to each second identification part, each second identification part is the same as the corresponding first identification part, the base is provided with a control circuit board, the control circuit board is provided with an MCU, and the pressure sensor, each microswitch and each display screen are electrically connected with the control circuit board.

2. The weighing and balancing device of claim 1, wherein the test tube slot, the display screen, the first identification portion and the second identification portion are arranged in a rectangular array.

3. The weighing balancing device of claim 1, wherein the base is provided with a key switch, and the key switch controls the circuit board to be electrically connected.

4. The weighing and balancing device of claim 1, wherein the base has a cavity therein, and the control circuit board is disposed in the cavity.

5. The weighing and balancing device of claim 1, wherein the placement area is disposed on a left portion of the base, the weighing area and the indication area are both disposed on a right portion of the base, and the weighing area is disposed in front of the indication area.

6. The weighing and balancing device of claim 1, wherein the base is provided with a buzzer, and the buzzer is electrically connected with the control circuit board.

7. The weighing and balancing device of claim 1, wherein a level gauge is fixedly disposed on a top surface of the base.

8. The weight trim apparatus of claim 7 wherein the level is a disk bubble level.