Automatic acquisition and storage device

Abstract

The utility model develops an automatic acquisition and storage device, which is characterized in that a polyurethane thermal insulation material is wrapped on a shell of an automatic acquisition and storage device body, and the thickness of the polyurethane thermal insulation material is 5mm; grooves are formed in the outer walls of the two sides of the automatic collecting and storing device body and used for containing semiconductor chilling plates. The outer side of the semiconductor chilling plate is connected with a copper radiating fin through four screws; an electric fan is in threaded connection with the inner wall of the upper portion of the copper cooling fin. A sealing cover is arranged above the automatic acquisition and storage device body, and a U-shaped notch is formed in the sealing cover and is used for placing a sample drainage device. On the basis, trace liquid can be quantitatively collected at multiple frequencies, the sampling error is extremely small, and meanwhile, the liquid can be temporarily stored at low temperature. The instrument is suitable for automatic liquid sampling and storage in medical and chemical industries.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid management system, in particular to an automatic acquisition and memory. BACKGROUND

[0002] In medical and chemical research, the demand for automated and quantitative collection and storage of liquid samples is increasingly urgent. For example, the accurate handling of blood samples is crucial for medical diagnosis, while the storage of irritating liquids in wastewater treatment requires high safety. Traditional manual or semi-automated methods are inefficient and prone to contamination, leading to unstable experimental results and potential safety hazards. Therefore, it is imperative to develop an efficient and safe automated liquid management system to improve experimental efficiency and accuracy and ensure the safety and reliability of the experimental process. Such a system can meet the diverse needs of modern research for sample handling.

[0003] Currently, there are many related devices for automatic acquisition and storage of liquid samples. For example, a liquid sample collection device invented by Zhao Bin et al. (Chinese patent 201610973189.1), an intelligent liquid collection system developed by Wang Chunyan et al. (Chinese patent 201811098725.3), a system for liquid storage and sampling developed by Yuan Xuetu et al. (Chinese patent 202122397870.5), a low-temperature liquid storage device by Wang Zhenglin et al. (Chinese patent 202123332041.5), a portable intelligent sample preservation box by Luo Weiyun et al. (Chinese patent 201910408333.0), and a device and method for quantitative collection, processing and preservation of liquid samples by Fang Qun et al. (Chinese patent 202210068339.X). However, these devices, although capable of collecting liquids, are mostly designed for the collection and storage of large amounts of liquid and are difficult to meet the needs of laboratory micro-liquid (such as less than one milliliter) collection and storage. In addition, existing equipment cannot achieve multiple sampling to meet comparative experimental requirements, nor do they have temperature control functions, which can easily affect the quality of samples due to temperature fluctuations. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide an automatic acquisition and memory to solve the problems raised in the background technology.

[0005] The utility model discloses a kind of automatic collection and memory, its features are: the shell of automatic collection and memory body is wrapped with polyurethane heat-insulating material, its thickness is 5mm;The recess is equipped on the outer wall of both sides of automatic collection and memory body, for the accommodation semiconductor refrigeration piece;The copper heat sink is connected by four screws on the outside of semiconductor refrigeration piece;Threadedly connected with electric fan on the inner wall above copper heat sink;Sealing cover is equipped on the upper side of automatic collection and memory body, sealing cover is equipped with U-shaped gap, to place sample drainage device;Automatic collection and memory body below is connected by screw with bending sheet metal;Stepping motor is connected by screw on the right upper side of bending sheet metal, and the output end of stepping motor is connected with stepping motor driver.The lower side of automatic collection and memory body is equipped with drainage port;There is straight hole on the upper side of automatic collection and memory body for placing temperature probe;Fixed bearing is placed in the bottom through hole of automatic collection and memory body.

[0006] Automatic collection and memory body four corners have threaded holes, and are fixed on the instrument shell by bolts.

[0007] Further, the fixed bearing is connected with the bottom of the distribution support through the bearing guide rod, and the distribution support has a coaxial distribution disc above, which is fixed between the distribution support and the locking handle through the locking handle.

[0008] Further, the bending sheet metal below is connected with two transmission bearings through bearing guide columns, and the transmission bearings are connected with belt pulleys.

[0009] Further, the temperature probe input end is connected with a single-chip microcomputer processor.

[0010] Further, the output end of the stepping motor driver is connected with a power switch.

[0011] Further, the sample drainage device is connected with the injection pump and the sample through the rubber pipeline between the sample drainage device and the injection pump and the sample.

[0012] Further, the rubber pipeline connected between the sample drainage device and the injection pump and the sample is a polyurethane tube with an inner diameter of 1.5mm.

[0013] Further, the output end of the stepping motor driver is connected with a single-chip microcomputer processor, and the output end of the single-chip microcomputer processor is connected with a display screen for displaying temperature and the current position of the distribution disc; the output end of the single-chip microcomputer processor is connected with a power button and an alarm button for turning on the instrument and alarming when the temperature is out of control.

[0014] Compared with the prior art, the utility model discloses the beneficial effect is: can freely set the volume of the sample of drawing, has good accuracy, is provided with the liquid separator, has 12 sample placing interfaces, can receive different samples of multiple frequency, has saved sampling time, avoided human error.

[0015] The instrument is suitable for automatic collection and storage of various liquids in chemistry and life science.

[0016] The instrument has the characteristics of high automation and simple operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is automatic collection and storage ware body structure schematic view of the utility model patent.

[0018] Figure 2 It is lower bending metal plate overhead structure schematic view of the utility model patent.

[0019] Figure 3 It is liquid separator side structure schematic view of the utility model patent.

[0020] Figure 4 It is automatic collection and storage ware body overhead structure schematic view of the utility model patent.

[0021] Figure 5 It is instrument external side structure schematic view of the utility model patent.

[0022] Figure 6 It is the lower overhead structure schematic view of the utility model patent instrument front section view.

[0023] Mark explanation: 1, sample flow inducer, 2, automatic collection and storage ware body, 3, sealing cover, 4, electric fan, 5, polyurethane heat preservation material, 6, copper heat dissipation fin, 7, bending metal plate, 8, step motor, 9, semiconductor refrigeration sheet, 10, transmission bearing, 11, belt pulley, 12, drainage, 13, locking handle, 14, liquid separator, 15, liquid separator support, 16, power button, 17, display screen, 18, alarm button, 19, syringe pump, 20, step motor driver, 21, power switch, 22, single-chip microcomputer processor, 23, syringe pump driver, 201, temperature probe, 202, fixed bearing. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model patent will be described in detail and comprehensively by using the drawings in the utility model patent embodiment. Obviously, the described embodiment only represents some embodiments of the utility model patent, not all. According to the utility model patent embodiment, all other embodiments obtained by other ordinary skilled persons without creative labor are protected by the utility model patent.

[0025] Please refer to Figures 1-6 The utility model discloses automatic collection and memory case provides a kind of automatic collection and memory. Including automatic collection and memory body 2, the shell of the automatic collection and memory body 2 is wrapped with polyurethane heat-insulating material 5, and its thickness is 5mm;Can be cooled while guaranteeing that heat is not dissipated in semiconductor refrigeration sheet 9, so that the minimum refrigeration temperature can reach minus ten degrees Celsius. It also has the function of protecting automatic collection and memory, avoiding equipment from suffering external force attack. The recess is equipped on the both sides outer wall of the automatic collection and memory body 2, for placing semiconductor refrigeration sheet 9. Refrigeration sheet is divided into cold face and hot face, cold face is towards recess, hot face is outward, and heat-conducting silicone grease is coated between refrigeration sheet and recess, to ensure that aluminum block heat can be sucked out, and the sucked heat is dissipated to surrounding atmosphere, to ensure the low-temperature preservation of sample, and maintain the quality of sample;Semiconductor refrigeration sheet 9 is connected with copper heat sink 6 through four screws on its outside. Electric fan 4 is threadedly connected on the upper inner wall of copper heat sink 6. The upper of the automatic collection and memory body 2 is equipped with sealing cover 3, which is mainly to maintain the internal temperature of automatic collection and memory, prevent heat from entering from above, and can also prevent dust and other objects from falling into the sample, to ensure the purity of sample sample. Sealing cover 3 is provided with U-shaped gap for placing sample flow guide 1, and the rear end of sample flow guide 1 is used for placing needle tube to collect sample.

[0026] In the embodiment, the automatic collection and memory body 2 is connected with the bent sheet metal 7 below through a screw, which is used to fix the bearing, motor and other components; the step motor 8 is connected to the step motor driver 20 through a screw on the right upper side of the bent sheet metal 7. The step motor 8 can control the bearing to drive the distribution disc to rotate, thereby realizing uninterrupted collection of twelve samples in the process.

[0027] In the embodiment, the automatic collection and memory body 2 is provided with a drainage port 12 below. It is used to drain the condensed water condensed at the bottom due to too low temperature.

[0028] In the embodiment, the automatic collection and memory body 2 is provided with a straight hole above for placing a temperature probe 201.

[0029] In the embodiment, the automatic collection and memory body 2 is provided with a fixed bearing 202 in the bottom through hole, which is connected with the distribution support 15 through a bearing guide rod. The distribution support 15 is provided with a coaxial distribution disc 14 above, and the fixing of the distribution support 15 and the distribution disc 14 is realized by a locking handle 13. The step motor, transmission bearing, fixed bearing and distribution disc can rotate synchronously, and the locking handle can be adjusted to change the tightness of the distribution disc, thereby changing the rotation speed of the distribution disc and adjusting the distribution disc more quickly.

[0030] In the embodiment, the automatic collection and storage body 2 is fixed on the instrument shell through bolts at four corners.

[0031] In the embodiment, two transmission bearings 10 are connected below the bent sheet metal 7 through bearing guide columns, and a belt pulley 11 is connected between the transmission bearings 10, so that the stepping motor 8 is transferred from below the automatic collection and storage body 2 to the side, avoiding that condensed water in the refrigeration process enters the stepping motor along the bearing connecting rod, thereby causing corrosion of the stepping motor 8.

[0032] In the embodiment, the temperature probe 201 is connected to the single-chip microcomputer processor 22 at the input end, and is used for detecting the real-time temperature of the automatic collection and storage body 2.

[0033] In the embodiment, the stepping motor driver 20 is connected to the power switch 21 at the output end. Based on this, automatic control of the distribution disc can be realized.

[0034] In the embodiment, a threaded hole is arranged below the front end of the sample flow guide 1, and the sample flow guide 1 is fixed above the instrument shell through bolts. The sample flow guide 1 is connected to the left liquid outlet of the injection pump 19 through a rubber pipeline, and the right liquid inlet of the injection pump 19 is connected to the sample through a rubber pipeline. The injection pump 19 is controlled by the injection pump driver 23, and the injection pump driver 23 is connected to the power switch 21 at the output end. Through the injection pump, the sample can be taken out from the container, injected into the automatic collection and storage body 2 through the sample flow guide, and the working principle of the injection pump is to use an electric drive system to start pushing the piston of the syringe, accurately control the delivery of the medicine according to the set parameters, and the injection pump has higher precision than the peristaltic pump.

[0035] In the embodiment, the rubber pipelines connected between the sample flow guide 1, the injection pump 19 and the sample are polyurethane pipes with an inner diameter of 1.5 mm.

[0036] In the embodiment, the stepping motor driver 20 is connected to the single-chip microcomputer processor 22 at the output end, and the single-chip microcomputer processor 22 is connected to the display screen 17 at the output end, which is used for displaying the temperature and the current position of the distribution disc 14.

[0037] In the embodiment, the single-chip microcomputer processor 22 is connected to the power button 16 and the alarm button 18 at the output end. The power button 16 is used for turning on the instrument, and the alarm button 18 is used for alarming when the temperature is out of control.

[0038] The utility model discloses a working principle: first connect the power switch, click power button, start the instrument, open the screen after, press reset key, can the liquid separation tray reset to no. 1 liquid outlet, the screen will show the temperature and the liquid volume that injection pump draws that need to set, after all setting, the right pipeline of injection pump is inserted into the sample to be drawn, the left pipeline is connected to sample drainer. Click start button, and injection pump can start working, and the sample is drawn through injection pump to sample drainer, and finally injects into sampling dropper, when reaching the set amount, injection pump stops automatically. At this time, it can choose to continue to take the next sample or stop, if continuing to take the sample, only need to adjust the position of liquid separation tray (such as adjusting no. 1 position to no. 2 position), and the amount that needs to be taken can continue to draw the sample, and at this time, stepper motor 8 will drive the belt pulley in the lower bending metal sheet to rotate, thereby driving the liquid separation tray to link, and the liquid separation tray can change position. This method can avoid that the motor is directly installed below the automatic collection and storage main body, and the condensate water generated due to refrigeration can enter the stepper motor through the bearing gap, thereby causing the stepper motor to rust inside, and damage. At the same time, in order to avoid too much condensate water in the automatic collection and storage main body, a drainage port is adopted to discharge the instrument outside through the pipeline. In order to ensure the refrigeration effect, through multiple comparisons, different semiconductor refrigeration piece placement methods are adopted, and finally the scheme of placing the refrigeration piece symmetrically on both sides is determined. The refrigeration piece power is selected as 36W, and if the power is too high, the refrigeration piece itself will generate too much heat, which will affect heat dissipation. If the power is too low, the heat of the aluminum block itself cannot be conducted.

[0039] Although the embodiments of the utility model patent have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model patent. The scope of the utility model patent is defined by the appended claims and their equivalents.

Claims

1. An automated collection and storage device, characterized by: The outer shell of the automatic collection and storage body (2) is wrapped with polyurethane thermal insulation material (5) with a thickness of 5mm; the two side walls of the automatic collection and storage body (2) are provided with grooves for placing semiconductor refrigerating sheets (9); the semiconductor refrigerating sheets (9) are connected with copper heat dissipation sheets (6) through four screws on the outer side thereof; the upper inner wall of the copper heat dissipation sheet (6) is threadedly connected with an electric fan (4); the upper part of the automatic collection and storage body (2) is provided with a sealing cover (3) provided with a U-shaped opening for placing a sample flow guide (1); the lower part of the automatic collection and storage body (2) is connected with a bent sheet metal (7) through a screw; the upper right side of the bent sheet metal (7) is connected with a stepping motor (8) through a screw, and the output end of the stepping motor (8) is connected with a stepping motor driver (20); the lower part of the automatic collection and storage body (2) is provided with a liquid discharge port (12); the upper part of the automatic collection and storage body (2) is provided with a straight hole for placing a temperature probe (201); the bottom through hole of the automatic collection and storage body (2) is provided with a fixed bearing (202); the fixed bearing (202) is connected with the bottom of a liquid distribution support (15) through a bearing guide rod, the upper part of the liquid distribution support (15) is provided with a coaxial liquid distribution disc (14), and the liquid distribution disc (14) is fixed between the liquid distribution support (15) and a locking handle (13) through the locking handle (13); the four corners of the automatic collection and storage body (2) are provided with threaded holes, and the automatic collection and storage body (2) is fixed on the instrument shell through bolts.

2. The automatic collection and storage of claim 1, wherein: The lower part of the bent sheet metal (7) is connected with two transmission bearings (10) through a bearing guide column, and the transmission bearings (10) are connected with a belt pulley (11) therebetween.

3. The automatic collection and storage of claim 1, wherein: The input end of the temperature probe (201) is connected with a single-chip microcomputer processor (22).

4. The automatic collection and storage of claim 1, wherein: The output end of the stepping motor driver (20) is connected with a power switch (21).

5. The automatic collection and storage of claim 1, wherein: The front end of the sample flow guide (1) is provided with a threaded hole, which is fixed on the upper part of the instrument shell through a bolt; the sample flow guide (1) is connected with a left liquid outlet of a syringe pump (19) through a rubber pipeline, a right liquid inlet of the syringe pump (19) is connected with a sample, the syringe pump (19) is controlled through a syringe pump driver (23), and the output end of the syringe pump driver (23) is connected with the power switch (21).

6. The automatic collection and storage of claim 5, wherein: The rubber pipelines connected between the sample flow guide (1) and the syringe pump (19), the syringe pump (19) and the sample are polyurethane tubes with an inner diameter of 1.5mm.

7. The automatic collection and storage of claim 4, wherein: The output end of the stepping motor driver (20) is connected with a single-chip microcomputer processor (22); the output end of the single-chip microcomputer processor (22) is connected with a display screen (17) for displaying temperature and the current position of the liquid distribution disc; the output end of the single-chip microcomputer processor (22) is connected with a power button (16) and an alarm button (18) for starting the instrument and alarming when the temperature is out of control.

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