CN210251902U

CN210251902U - Equipment ration dilutes mixing arrangement for microbial detection

Info

Publication number: CN210251902U
Application number: CN201921134809.8U
Authority: CN
Inventors: 孙潇慧; 霍胜楠; 郑世超; 钟立霞
Original assignee: Shandong Institute for Food and Drug Control
Current assignee: Shandong Institute for Food and Drug Control
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-07
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an equipment quantitative dilution and mixing device for microbiological detection, which comprises a liquid outlet device, a material conveying seat and a test tube rack, wherein the liquid outlet device is respectively provided with a liquid storage cylinder to be detected and a diluent storage cylinder; the inside of going out the liquid device is equipped with second relay switch, controller, motor drive chip, power module and first relay switch respectively, and controller, first motorised valve and second motorised valve all with power module electric connection, have and to flow the microorganism and detect the operation of diluting, are applicable to large batch dilution operation scene, effectively reduce artifical work burden, improve work efficiency's advantage.

Description

Equipment ration dilutes mixing arrangement for microbial detection

Technical Field

The utility model relates to a microbiological detection technical field specifically says that equipment ration dilutes mixing arrangement for microbiological detection.

Background

The microorganism detection is a detection method which utilizes the theory and method of microbiology to detect the type, quantity, property and influence on human health of microorganisms in products and judge whether the products meet the quality standard, and through search discovery, the utility model of patent No. CN208672426U discloses an automatic weight dilution instrument for detection, which comprises an automatic weight dilution instrument body, a homogeneous bag holding handle and a support column, wherein the lower ends of the homogeneous bag holding handle and the support column are fixedly connected with the upper end of the automatic weight dilution instrument body, the upper end of the support column is rotatably connected with a rotating mechanism, the upper end of the rotating mechanism is fixedly connected with a fixed block, two placing grooves which are penetrated left and right are arranged in the fixed block in parallel, a water injection pipe is placed in the placing grooves and is connected with external water supply equipment, a limiting mechanism for clamping the water injection pipe is arranged in the fixed block, a stirring ring is fixedly sleeved on the support column, the stirring ring is movably connected with the rotating mechanism, so that liquid injection operation can be completed without manually taking up the water injection pipe, splashing and unstable holding are not easy to occur, the probability of misoperation is reduced, and the use of operators is convenient. However, analysis shows that the operation of the existing dilution instrument is not streamlined, and a large amount of manual intervention is required for large-batch dilution operation, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model provides a mixing arrangement is diluted with equipment ration for microbial detection here has and to flow microbial detection and dilute the operation, is applicable to large batch dilution operation scene, effectively reduces the artifical work burden, improves work efficiency's advantage.

The utility model discloses a realize like this, construct little biological detection and use equipment ration dilution mixing arrangement, including going out liquid device, passing material seat and test-tube rack, go out the liquid device and be equipped with respectively and wait to examine liquid storage cylinder and diluent storage cylinder, wait to examine the bottom of liquid storage cylinder and install first motorised valve, the bottom of diluent storage cylinder is installed the second motorised valve, the bottom of going out the liquid device is equipped with the base, the top of base is installed servo motor, fix the reason charging tray through mounting flange on the axis of rotation on servo motor top; a second relay switch, a controller, a motor driving chip, a power module and a first relay switch are respectively arranged in the liquid outlet device, the controller, the first electric valve and the second electric valve are electrically connected with the power module, the first relay switch is connected with the first electric valve in series, the second relay switch is connected with the second electric valve in series, the first relay switch, the second relay switch and the motor driving chip are all in signal connection with a control signal output end of the controller, and the servo motor is in signal connection with the motor driving chip; the material conveying seat is arranged on one side of the material arranging disc, and the test tube rack is erected in the middle of the liquid outlet device and the material conveying seat.

Furthermore, the material conveying seat comprises an electric rod and a push sheet, the push sheet is arranged at the end part of the electric rod and fixedly connected with the screw rod end of the electric rod through a bolt, and the electric rod is in signal connection with the motor driving chip. The method is realized by that a control signal is output to a motor driving chip by a controller, the motor driving chip drives an electric rod and a servo motor to work, a test tube in a test tube rack is pushed into a material arranging disc by a material conveying seat, empty test tubes are conveyed to the bottoms of a first electric valve and a second electric valve one by the material arranging disc, the first electric valve is controlled to automatically and quantitatively put in liquid to be detected according to a program written in the controller, then the second electric valve is controlled to put in diluent according to a proportion to complete dilution and mixing, and specifically, the electric rod on the material conveying seat pushes a push sheet to move forwards, so that the push sheet pushes the test tube in a hanging edge strip of the test tube rack forwards into an embedded groove of the material arranging disc, a clamping ring of the test tube is hooked at the top of the embedded groove of the material arranging disc, an opening of the test tube is upwards hung on the material arranging disc, the servo motor drives the material arranging disc to rotate to the bottom of the first electric valve at, the first relay switch is connected with the power supply of the first electric valve, the liquid to be detected in the liquid storage cylinder to be detected falls into the test tube under the action of gravity after the first electric valve is opened, after the liquid to be detected reaches the amount set by the program, the controller sends a control signal to the first relay switch again to enable the first relay switch to disconnect the power supply of the first electric valve, the first electric valve is closed to stop the input of the liquid to be detected, then the servo motor is started to continue to rotate the material arranging disc to enable the test tube containing the liquid to be detected to reach the bottom of the second electric valve, the control of the controller enables the second relay switch to open the second electric valve, the diluent in the diluent storage cylinder is input into the test tube according to the proportion set by the program to complete dilution and mixing, the microorganism detection and dilution operation can be carried out in a flow, the manual labor reduction device is suitable for large-batch dilution operation scenes, the working efficiency is improved.

Further, the test-tube rack comprises hanging strake and test tube, and it has 2 to hang the strake, and is parallel arrangement, and the top nestification of test tube has the screens circle, and the test tube imbeds in the intermediate position of hanging the strake, and screens circle hook is on hanging the strake. Empty test tube is deposited through the test-tube rack that sets up, and operating personnel only need place the test tube and can accomplish automatic dilution mixing operation behind the starting drive in the test-tube rack.

Furthermore, the material arranging plate is a disc-shaped metal sheet, and a plurality of caulking grooves which are uniformly distributed at intervals are arranged at the circumferential position of the material arranging plate. The test tube is conveyed to the bottoms of the first electric valve and the second electric valve at intervals under the driving of the servo motor through the arranged material arranging disc, and automatic material arranging is achieved.

Furthermore, the second electric valve and the first electric valve are arranged at the top end of the material arranging plate around the circumferential position of the material arranging plate. The liquid in the diluent storage cylinder and the liquid in the to-be-detected liquid storage cylinder are respectively controlled to be fed and stopped through the arranged second electric valve and the arranged first electric valve.

The utility model discloses an improve and provide equipment ration diluting mixing arrangement for microbial detection here, can flow the microbial detection and dilute the operation, be applicable to large batch dilution operation scene, effectively reduce the artifical work burden, improve work efficiency's advantage. The concrete embodiment is as follows: the material conveying seat comprises an electric rod and a push sheet, the push sheet is arranged at the end part of the electric rod and fixedly connected with the screw rod end of the electric rod through a bolt, and the electric rod is in signal connection with a motor driving chip. The method is realized by that a control signal is output to a motor driving chip by a controller, the motor driving chip drives an electric rod and a servo motor to work, a test tube in a test tube rack is pushed into a material arranging disc by a material conveying seat, empty test tubes are conveyed to the bottoms of a first electric valve and a second electric valve one by the material arranging disc, the first electric valve is controlled to automatically and quantitatively put in liquid to be detected according to a program written in the controller, then the second electric valve is controlled to put in diluent according to a proportion to complete dilution and mixing, and specifically, the electric rod on the material conveying seat pushes a push sheet to move forwards, so that the push sheet pushes the test tube in a hanging edge strip of the test tube rack forwards into an embedded groove of the material arranging disc, a clamping ring of the test tube is hooked at the top of the embedded groove of the material arranging disc, an opening of the test tube is upwards hung on the material arranging disc, the servo motor drives the material arranging disc to rotate to the bottom of the first electric valve at, the first relay switch is connected with the power supply of the first electric valve, the liquid to be detected in the liquid storage cylinder to be detected falls into the test tube under the action of gravity after the first electric valve is opened, after the liquid to be detected reaches the amount set by the program, the controller sends a control signal to the first relay switch again to enable the first relay switch to disconnect the power supply of the first electric valve, the first electric valve is closed to stop the input of the liquid to be detected, then the servo motor is started to continue to rotate the material arranging disc to enable the test tube containing the liquid to be detected to reach the bottom of the second electric valve, the control of the controller enables the second relay switch to open the second electric valve, the diluent in the diluent storage cylinder is input into the test tube according to the proportion set by the program to complete dilution and mixing, the microorganism detection and dilution operation can be carried out in a flow, the manual labor reduction device is suitable for large-batch dilution operation scenes, the working efficiency is improved.

Drawings

FIG. 1 is a schematic view of the quantitative dilution and mixing device of the microorganism detection apparatus of the present invention;

FIG. 2 is an enlarged view of A0 of the quantitative dilution and mixing device of the apparatus for microorganism detection of the present invention;

FIG. 3 is a block diagram of the quantitative dilution and mixing device of the microorganism detection apparatus of the present invention.

Sequence numbers shown in the figures: go out liquid device 1, base 2, pass material seat 3, test-tube rack 4, electronic pole 5, hang strake 6, servo motor 7, reason charging tray 8, first motorised valve 9, second motorised valve 10, wait to examine liquid storage cylinder 11, diluent storage cylinder 12, push jack 13, test tube 14, screens circle 15, second relay switch 16, controller 17, motor drive chip 18, power module 19 and first relay switch 20.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; furthermore, the terms "first," "second," "third," "upper, lower, left, right," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a microorganism detection device quantitative dilution mixing device through improvement, as shown in the attached drawing of the specification, which can be implemented as follows; the liquid outlet device 1 is respectively provided with a liquid storage cylinder 11 to be detected and a diluent storage cylinder 12, the bottom of the liquid storage cylinder 11 to be detected is provided with a first electric valve 9, the bottom of the diluent storage cylinder 12 is provided with a second electric valve 10, the bottom of the liquid outlet device 1 is provided with a base 2, the top end of the base 2 is provided with a servo motor 7, and a material arranging disc 8 is fixed on a rotating shaft at the top end of the servo motor 7 through a fixing flange; a second relay switch 16, a controller 17, a motor driving chip 18, a power module 19 and a first relay switch 20 are respectively arranged inside the liquid outlet device 1, the controller 17, the first electric valve 9 and the second electric valve 10 are electrically connected with the power module 19, the first relay switch 20 is connected with the first electric valve 9 in series, the second relay switch 16 is connected with the second electric valve 10 in series, the first relay switch 20, the second relay switch 16 and the motor driving chip 18 are all in signal connection with a control signal output end of the controller 17, and the servo motor 7 is in signal connection with the motor driving chip 18; the material conveying seat 3 is arranged on one side of the material arranging disc 8, and the test tube rack 4 is erected in the middle of the liquid outlet device 1 and the material conveying seat 3.

The utility model discloses in, pass material seat 3 and include electronic pole 5 and ejector pad 13, ejector pad 13 sets up in the tip of electronic pole 5 to pass through bolt fixed connection with the lead screw end of electronic pole 5, and

electronic pole

5 and 18 signal connection of motor drive chip. Outputting a control signal to a motor driving chip 18 through a controller 17, enabling the motor driving chip 18 to drive an electric rod 5 and a servo motor 7 to work, enabling a material conveying seat 3 to push test tubes 14 in a test tube rack 4 into a material arranging disc 8, enabling empty test tubes to be conveyed to the bottoms of a first electric valve 9 and a second electric valve 10 one by one through the material arranging disc 8, controlling the first electric valve 9 to automatically and quantitatively put in a liquid to be detected according to a program written in the controller 17, then controlling the second electric valve 10 to put in a diluent according to a proportion to finish diluting and mixing work, specifically, firstly, enabling the electric rod 5 on the material conveying seat 3 to push a push sheet 13 to move forwards, enabling the push sheet 13 to push the test tubes 14 in a hanging strip 6 of the test tube rack 4 forwards into an embedding groove of the material arranging disc 8, and enabling a clamping ring 15 of the test tubes 14 to hook the top of the embedding groove 8 at the moment, enabling the openings of the test tubes 14 to be upwards, at the moment, the servo motor 7 drives the material arranging disc 8 to rotate to the bottom of the first electric valve 9, the controller 17 sends a control signal to the first relay switch 20, so that the first relay switch 20 is connected with the power supply of the first electric valve 9, the liquid to be detected in the liquid storage cylinder 11 to be detected falls into the test tube 14 under the action of gravity after the first electric valve 9 is opened, after the amount set by the program is reached, the controller 17 sends a control signal to the first relay switch 20 again, so that the first electric valve 9 is disconnected from the power supply of the first electric valve 20, the first electric valve 9 is closed to stop the input of the liquid to be detected, then the servo motor 7 is started to continue to rotate the material arranging disc 8, so that the test tube 14 containing the liquid to be detected reaches the bottom of the second electric valve 10, the control is the same as the control of the first electric valve 9, the second electric valve 10 is opened by the second relay switch 16 under the control of the controller 17, the diluent in the diluent storage cylinder 12 is input into the, the microorganism detection and dilution operation can be carried out in a flow manner, the method is suitable for a large-batch dilution operation scene, the manual labor burden is effectively reduced, and the working efficiency is improved;

test-tube rack 4 comprises hanging strake 6 and test tube 14, and it has 2 to hang strake 6, and is parallel arrangement, and the top nestification of test tube 14 has screens circle 15, and test tube 14 is embedded in the intermediate position of hanging strake 6, and screens circle 15 hooks on hanging strake 6. Through the arranged test tube 14 with the empty test tube rack 4, an operator can complete automatic dilution and mixing operation only by placing the test tube 14 in the test tube rack 4 and starting the device; the material arranging disc 8 is a disc-shaped metal sheet, and a plurality of caulking grooves which are evenly distributed at intervals are arranged at the circumferential position of the material arranging disc 8. The test tubes 14 are conveyed to the bottoms of the first electric valve 9 and the second electric valve 10 at intervals by the driving of the servo motor 7 through the arranged material arranging disc 8, so that automatic material arranging is realized; the second electric valve 10 and the first electric valve 9 are both arranged at the top end of the material arranging disc 8 around the circumferential position of the material arranging disc 8. The liquid in the diluent storage cylinder 12 and the liquid in the sample liquid storage cylinder 11 are respectively controlled to be fed and stopped by the arranged second electric valve 10 and the first electric valve 9.

The working principle of the quantitative dilution and mixing device for the microorganism detection equipment is as follows: a controller 17 of the mixing device adopts a 32-bit microcontroller with the model number of 32F103C8, a motor driving part adopts a UM2003 chip to carry out the driving control of an electric rod 5 and a servo motor 7, firstly, liquid to be detected is stored in a liquid storage cylinder 11 to be detected, diluent is stored in a diluent storage cylinder 12, a control signal is output to a motor driving chip 18 through the controller 17, the motor driving chip 18 drives the electric rod 5 and the servo motor 7 to work, a material conveying seat 3 pushes test tubes 14 in a test tube rack 4 into a material managing disc 8, the empty test tubes are conveyed to the bottoms of a first electric valve 9 and a second electric valve 10 one by one through the material managing disc 8, the first electric valve 9 is controlled to automatically and quantitatively put in the liquid to be detected according to a program written in the controller 17, and then the second electric valve 10 is controlled to put in the diluent according to the proportion to complete the diluting and mixing work.

The application method of the quantitative dilution and mixing device for the microorganism detection equipment comprises the following steps: firstly, an electric rod 5 on a material conveying seat 3 pushes a push sheet 13 to move forwards, so that the push sheet 13 pushes a test tube 14 in a hanging edge strip 6 of a test tube rack 4 forwards to the embedded groove of a material arranging disc 8, at the moment, a clamping ring 15 of the test tube 14 is hooked on the top of the embedded groove of the material arranging disc 8, so that an opening of the test tube 14 is upwards hung on the material arranging disc 8, at the moment, a servo motor 7 drives the material arranging disc 8 to rotate to the bottom of a first electric valve 9, a controller 17 sends a control signal to a first relay switch 20, so that the first relay switch 20 is connected with a power supply of the first electric valve 9, after the first electric valve 9 is opened, liquid to be detected in a liquid storage cylinder 11 falls into the test tube 14 under the action of gravity, after the amount set by a program is reached, the controller 17 sends a control signal to the first relay switch 20 again, so that the first relay switch 20 is disconnected with the power supply of the first electric valve 9, the, then, the servo motor 7 is started to continuously rotate the material arranging disc 8 to enable the test tube 14 containing the liquid to be detected to reach the bottom of the second electric valve 10, the test tube is controlled to be the same as the first electric valve 9, the second electric valve 10 is opened through the second relay switch 16 under the control of the controller 17, the diluent in the diluent storage cylinder 12 is fed into the test tube 14 according to the proportion set by a program to complete dilution and mixing, the microorganism detection and dilution operation can be carried out in a flowing mode, the method is suitable for large-batch dilution operation scenes, the manual labor burden is effectively reduced, and the working efficiency is improved.

In conclusion; mixing arrangement is diluted with equipment ration to microbial detection compares with current mixing arrangement is diluted with equipment ration to microbial detection, has and to dilute the operation by flow microbial detection, is applicable to large batch dilution operation scene, effectively reduces artifical work burden, improves work efficiency's advantage.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Mixing arrangement is diluted with equipment ration to microbial detection, including going out liquid device (1), biography material seat (3) and test-tube rack (4), its characterized in that: the liquid outlet device (1) is provided with a liquid storage cylinder (11) to be detected and a diluent storage cylinder (12) respectively, a first electric valve (9) is installed at the bottom of the liquid storage cylinder (11) to be detected, a second electric valve (10) is installed at the bottom of the diluent storage cylinder (12), a base (2) is arranged at the bottom of the liquid outlet device (1), a servo motor (7) is installed at the top end of the base (2), and a material arranging disc (8) is fixed on a rotating shaft at the top end of the servo motor (7) through a fixing flange; a second relay switch (16), a controller (17), a motor driving chip (18), a power module (19) and a first relay switch (20) are respectively arranged inside the liquid outlet device (1), the controller (17), the first electric valve (9) and the second electric valve (10) are electrically connected with the power module (19), the first relay switch (20) is connected with the first electric valve (9) in series, the second relay switch (16) is connected with the second electric valve (10) in series, the first relay switch (20), the second relay switch (16) and the motor driving chip (18) are all in signal connection with a control signal output end of the controller (17), and the servo motor (7) is in signal connection with the motor driving chip (18); the material conveying seat (3) is installed on one side of the material arranging plate (8), and the test tube rack (4) is erected in the middle of the liquid outlet device (1) and the material conveying seat (3).

2. The quantitative dilution and mixing device for a microorganism detection apparatus according to claim 1, wherein: the material conveying seat (3) comprises an electric rod (5) and a pushing piece (13), the pushing piece (13) is arranged at the end part of the electric rod (5) and fixedly connected with the screw rod end of the electric rod (5) through a bolt, and the electric rod (5) is in signal connection with a motor driving chip (18).

3. The quantitative dilution and mixing device for a microorganism detection apparatus according to claim 1, wherein: test-tube rack (4) comprises hanging strake (6) and test tube (14), hang strake (6) and have 2, and be parallel arrangement, the top nestification of test tube (14) has screens circle (15), test tube (14) are embedded in the intermediate position of hanging strake (6), screens circle (15) hook on hanging strake (6).

4. The quantitative dilution and mixing device for a microorganism detection apparatus according to claim 1, wherein: the material arranging plate (8) is a disc-shaped metal sheet, and a plurality of caulking grooves which are uniformly distributed at intervals are formed in the circumferential position of the material arranging plate (8).

5. The quantitative dilution and mixing device for a microorganism detection apparatus according to claim 1, wherein: the second electric valve (10) and the first electric valve (9) are arranged at the top end of the material arranging disc (8) around the circumferential position of the material arranging disc (8).