Device for automatically pressing microorganism test piece
By designing a device that automatically presses the microbial test sheet using a double-layer spring press plate and a transmission roller, the problem of sample solution leakage and excessive number of test sheets caused by manual operation in the prior art is solved, and a more efficient and accurate pressing and transporting process of the microbial test sheet is achieved.
Patent Information
- Application Number
- CN202411924044.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-06-27
AI Technical Summary
The pressing of existing microbial test sheets requires manual operation, and the compression force cannot be controlled, which can easily cause sample solution to leak, affect the accuracy of the test, and excessive stacking will inhibit the growth of the strain and reduce the accuracy of the result.
An automatic pressing device is designed, and the microbial test piece is pressed using a double-layer spring press plate, and automatic transmission is achieved through the transmission roller and rubber ring, so that the pressed test piece can fall directly into the culture box to avoid sample solution leakage caused by manual operation.
It effectively solves the problem of sample fluid leakage and uneven distribution, improves the pressing accuracy and safety of the test piece, avoids the leakage of sample solution caused by manual operation, and ensures that the number of test piece stacked within the safe range through automatic transmission and counting functions.
Smart Images
Figure CN120206871A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of microbial culture, and particularly to a device for automatically pressing microbial test pieces. Background Art
[0002] Currently in the market, the pressing work of microbial test pieces is all manually operated; the pressing force cannot be controlled, and it is easy to cause the sample solution to leak to the outside, directly affecting the technical accuracy of the microbial test pieces. After the microbial test pieces are pressed, when manually taking them, it is necessary to be very slow, otherwise it is easy to cause the sample solution in the microbial test pieces to leak to the outside. Before the microbial test pieces are transferred to the incubator, when the stacking quantity exceeds 20 pieces, it will directly cause the growth of the strains of the bottom microbial test pieces to be inhibited, reducing the accuracy of the results. Summary of the Invention
[0003] The purpose of the present invention is to overcome the problems existing in the prior art, and provide a device for automatically pressing microbial test pieces. A double-layer spring pressing plate is used to press the microbial test pieces to solve the problems of sample liquid leakage and uneven distribution of the sample liquid after pressing. A transmission roller is used in cooperation with a rubber ring to automatically transport the microbial test pieces, so that the pressed microbial test pieces can directly fall into the culture box, avoiding the leakage of the sample solution caused by manually taking the test pieces.
[0004] To achieve the above technical purpose and reach the above technical effect, the present invention is realized through the following technical solutions: A device for automatically pressing microbial test pieces, the device includes a conveying line for conveying microbial test pieces composed of a plurality of transmission shafts, the transmission shafts are connected and driven by a transmission motor, and an outer ring pressing plate is arranged above the pressing station of the conveying line. A relatively movable inner ring pressing plate is arranged inside the outer ring pressing plate for respectively pressing the microbial test pieces below. The upper end surfaces of the outer ring pressing plate and the inner ring pressing plate are respectively connected to a pressing plate connecting plate through a plurality of guiding spring columns for providing elastic buffering for pressing. The pressing plate connecting plate is connected and driven by a pressing motor to lift and lower to form a pressing action.
[0005] Further, the pressing surface of the outer ring pressing plate protrudes from the pressing surface of the inner ring pressing plate, so that when pressing, the pressing surface of the outer ring pressing plate first contacts the microbial test piece, and then the pressing surface of the inner ring pressing plate contacts the test piece.
[0006] Further, a gear is connected to the output shaft of the pressing motor, the gear meshes with and drives a rack to lift and lower, the rack is fixedly connected to the pressing plate connecting plate for driving the pressing plate connecting plate to lift and press, and the rack is slidably connected to a fixed support plate through a guide rail slider structure.
[0007] Further, a positioning piece is provided on the pressing plate connecting plate, and the positioning piece is in relative movement cooperation with a third sensor provided on the fixed support plate for positioning the position of the pressing plate connecting plate.
[0008] Further, both ends of the transmission shaft are rotatably arranged on the left transmission plate and the right transmission plate respectively, and the transmission motor is connected and drives the rotation of each transmission shaft through a synchronous belt and corresponding synchronous wheels and tension wheels.
[0009] Further, a first sensor is provided at the starting end of the conveyor line for detecting and determining whether a microbial test piece enters the conveyor line, and a second sensor is provided at the pressing station of the conveyor line for detecting and determining whether the microbial test piece reaches the pressing station.
[0010] Further, a rubber ring for providing friction is provided on the transmission shaft to facilitate the transmission of the microbial test piece.
[0011] Further, the housing part of the transmission motor and the fixed support plate are fixedly connected to the left transmission plate or the right transmission plate, and the housing part of the pressing motor is fixedly connected to the fixed support plate.
[0012] Further, the left transmission plate and the right transmission plate are fixedly connected to the bottom shell of the device, and the bottom shell of the device and the upper shell of the device enclose a box structure. A test piece insertion groove is provided on the front end face of the bottom shell of the device, and the inside of the test piece insertion groove is directly opposite to the upper end of the transmission shaft for inserting and transmitting the microbial test piece. A tray is provided on the front end face of the bottom shell of the device and at the lower end outside the test piece insertion groove for carrying and positioning the microbial test piece. A touch screen is provided on the front end face of the bottom shell of the device and at the upper end outside the test piece insertion groove for displaying the statistical quantity of the microbial test pieces and providing a human-computer interaction control interface.
[0013] Further, a magnet, a power plug and a switch are respectively provided on the rear end face of the bottom shell of the device, and the magnet is used for magnetic attraction cooperation with a corresponding test piece storage box.
[0014] The beneficial effects of the present invention are as follows: The present invention uses a double-layer spring pressing plate to press the microbial test piece, solves the problems of liquid leakage of the sample liquid and uneven distribution of the sample liquid after pressing, adopts the method of combining a transmission roller with a rubber ring to automatically transmit the microbial test piece, so that the pressed microbial test piece can directly fall into the culture box, avoids the leakage of the sample solution caused by manually taking the test piece, and is equipped with a liquid crystal touch screen with a counting function to avoid the number of stacked microbial test pieces exceeding 20 pieces. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a left-side perspective schematic diagram of the internal structure of the device of the present invention; Figure 2 Schematic perspective view of the internal structure of the device of the present invention, viewed from the right side Figure 3 Schematic perspective view of the internal structure of the device of the present invention, viewed from the rear side Figure 4 Schematic perspective view of the overall structure of the device of the present invention, viewed from the front side Figure 5 Schematic perspective view of the overall structure of the device of the present invention, viewed from the rear side
[0016] Explanation of reference numerals in the figure: 1, left transmission plate; 2, transmission shaft; 3, synchronous pulley; 4, transmission motor; 5, synchronous belt; 6, tensioning pulley; 7, fixed bracket; 8, transmission support plate; 9, first sensor; 10, right transmission plate; 11, control circuit board; 12, second sensor; 13, outer ring pressure plate; 14, guide spring column; 15, inner ring pressure plate; 16, pressure plate connecting plate; 17, positioning piece; 18, third sensor; 19, gear; 20, rack; 21, slider; 22, guide rail; 23, fixed support plate; 24, pressing motor; 25, tray; 26, device bottom case; 27, touch screen; 28, device upper case; 29, magnet; 30, power plug; 31, switch; 32, test piece insertion slot Detailed implementation manners
[0017] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments
[0018] As Figure 1 shown, a device for automatically pressing a microbial test piece includes a conveying line for conveying the microbial test piece, which is composed of a plurality of transmission shafts 2. The transmission shafts 2 are connected and driven by a transmission motor 4. An outer ring pressure plate 13 is provided above the pressing station of the conveying line. A relatively movable inner ring pressure plate 15 is arranged inside the outer ring pressure plate 13 for pressing the microbial test piece below respectively. The upper end surfaces of the outer ring pressure plate 13 and the inner ring pressure plate 15 are respectively connected to a pressure plate connecting plate 16 through a plurality of guide spring columns 14 for providing elastic buffering for pressing. The pressure plate connecting plate 16 is provided with a plurality of circular grooves corresponding to the number of the guide spring columns 14, facilitating the positioning and up-and-down movement of the guide spring columns 14 in the grooves. The pressure plate connecting plate 16 is connected and driven by a pressing motor 24 to move up and down, forming a pressing action
[0019] The pressing surface of the outer ring pressing plate 13 protrudes beyond the pressing surface of the inner ring pressing plate 15. During pressing, the pressing surface of the outer ring pressing plate 13 contacts the microbial test strip first, and then the pressing surface of the inner ring pressing plate 15 contacts the test strip. Since the outer ring of the microbial test strip is pressed first, liquid leakage can be prevented. Then, when the inner ring of the microbial test strip is pressed, the sample solution in the inner ring can be evenly covered on the culture area of the test strip. Additionally, guiding spring columns 14 with different elasticities can be selected. The elasticity of the spring column connecting the inner ring pressing plate 15 is relatively small, and the elasticity of the spring column connecting the outer ring pressing plate 13 is relatively large. Such fine-tuning can make the pressing effect better.
[0020] A gear 19 is connected to the output shaft of the pressing motor 24. The gear 19 meshes with and drives the rack 20 to move up and down. The rack 20 is fixedly connected to the pressing plate connecting plate 16 and is used to drive the pressing plate connecting plate 16 to move up and down for pressing. The rack 20 is slidably connected to the fixed support plate 23 through a guide rail slider structure. In this embodiment, the guide rail slider structure includes a slider 21 and a guide rail 22. The slider is fixedly connected to the fixed support plate 23 as a fixed part, and the guide rail 22 is fixedly connected to the rack 20 as a moving part.
[0021] A positioning piece 17 is provided on the pressing plate connecting plate 16. The positioning piece 17 is in relative motion cooperation with a third sensor 18 provided on the fixed support plate 23 for positioning the position of the pressing plate connecting plate 16.
[0022] Continue to refer to Figure 1 , both ends of the transmission shaft 2 are rotatably arranged on the left transmission plate 1 and the right transmission plate 10 respectively. The transmission motor 4 is connected to and drives the rotation of each transmission shaft 2 through a synchronous belt 5 and corresponding synchronous wheels 3 and a tensioning wheel 6. In this embodiment, the synchronous wheel 3 is installed at one end of the transmission shaft 2. All the synchronous wheels 3 and the tensioning wheel 6 share a synchronous belt 5 and are driven by the transmission motor 4. Additionally, as Figure 2 shown, in order to provide a flat surface at the bottom of the microbial test strip and make the pressing effect more uniform, a conveying support plate 8 is provided on the transmission surface formed by the transmission shafts 2. Relative to the carrier, the conveying support plate 8 moves along the conveying line driven by the transmission shafts 2, and the microbial test strip is placed on the conveying support plate 8.
[0023] A first sensor 9 is provided at the starting end of the conveying line for detecting and determining whether a microbial test strip enters the conveying line. A second sensor 12 is provided at the pressing station of the conveying line for detecting and determining whether the microbial test strip reaches the pressing station. The first sensor 9 and the second sensor 12 can be fixed to the side surface of the left transmission plate 1 or the right transmission plate 10.
[0024] A rubber ring for providing friction is provided on the transmission shaft 2. The rubber ring can provide friction to facilitate the transmission of the conveying support plate 8 and the microbial test strip.
[0025] The housing part of the driving motor 4 and the fixed support plate 23 are fixedly connected to the driving left side plate 1 or the driving right side plate 10. In this embodiment, the fixed support plate 23 is arranged horizontally. At the lower end of the fixed support plate 23, a pair of vertically arranged fixed brackets 7 are fixedly connected, and the fixed brackets 7 are respectively connected to the driving left side plate 1 and the driving right side plate 10. The housing part of the pressing motor 24 is fixedly connected to the fixed support plate 23.
[0026] As Figure 4 and Figure 5 shown, the driving left side plate 1 and the driving right side plate 10 are fixedly connected to the device bottom case 26. The device bottom case 26 and the device upper case 28 enclose a box structure. In this embodiment, the device bottom case 26 is a U-shaped structure with an upward opening, and the device upper case 28 is a U-shaped structure with a downward opening. The two U-shaped structures are exactly enclosed at a 90-degree angle to form a box. On the front end face of the device bottom case 26, a test piece insertion slot 32 is provided. The inside of the test piece insertion slot 32 is directly opposite to the upper end of the transmission shaft 2, and is used for inserting and transmitting the microbial test piece. On the front end face of the device bottom case 26 and at the lower end outside the test piece insertion slot 32, a tray 25 is provided, which is used for carrying and positioning the microbial test piece. On the front end face of the device bottom case 26 and at the upper end outside the test piece insertion slot 32, a touch screen 27 is provided, which is used for displaying the statistics of the number of microbial test pieces and providing a man-machine interaction control interface, and can provide button functions such as pressing quantity statistics, start, pause, end, etc.
[0027] In this embodiment, the driving motor 4, the first sensor 9, the second sensor 12, the third sensor 18, the pressing motor 24, the touch screen 27, and the switch 31 are electrically connected to the corresponding control circuit board 11 through cables. The control circuit board 11 is fixed on the side of the driving left side plate 1 or the driving right side plate 10. A corresponding controller (such as a single-chip microcomputer, etc.) is provided on the control circuit board 11 to control the actions of each component and display.
[0028] On the rear end face of the device bottom case 26, a magnet 29, a power plug 30, and a switch 31 are respectively provided. The magnet 29 is used for magnetic attraction cooperation with the corresponding test piece storage box.
[0029] The specific operation process is as follows: ①. Plug in the power supply of the device and turn it on; ②. Manually place the microbial test piece on the tray 25 and add the sample solution to the microbial test piece; ③. Manually push the microbial test piece forward into the device; ④. After the first sensor 9 detects the insertion of the microbial test piece, the driving motor 4 rotates, and through the rubber ring on the transmission shaft 2, the microbial test piece moves to the second sensor 12; ⑤. When the second sensor 12 detects that the microbial test strip is in place, the driving motor 4 stops rotating, and the pressing motor 24 starts to rotate, causing the pressing structure to move downward; ⑥. First, the outer ring pressing plate 13 presses against the outer edge of the microbial test strip, and then the inner ring pressing plate 15 presses the central culture area of the microbial test strip, so that the sample solution evenly covers it; ⑦. After pressing in place, the positioning piece 17 cooperates with the third sensor 18 to provide a signal, causing the pressing motor 24 to stop rotating and start rotating in the reverse direction, causing the pressing structure to move upward; ⑧. After the pressing structure returns to its original position, the driving motor 4 continues to rotate, causing the microbial test strip to be conveyed out of the device.
[0030] In addition, it should be noted that unless otherwise specified or indicated, the terms "first", "second", "third", etc. in the specification are only used to distinguish each component, element, step, etc. in the specification, rather than to represent the logical relationship or sequential relationship between each component, element, step, etc.
[0031] Those skilled in the art of the present technology can understand that the relevant modules involved in the present invention and the functions they implement can be achieved by loading conventional computer software programs or relevant protocols in the prior art on the improved hardware and the devices, components or systems constituted thereby, rather than improving the computer software programs or relevant protocols in the prior art. For example, the improved computer hardware system can still achieve the specific functions of the hardware system by loading the existing software operating system. Therefore, it can be understood that the innovation of the present invention lies in the improvement of the hardware modules in the prior art and their connection and combination relationships, rather than merely the improvement of the software or protocol loaded in the hardware modules to achieve relevant functions.
[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A device for automatically pressing a microbial test piece, the device comprising a conveying line composed of a plurality of transmission shafts (2) for conveying the microbial test piece, wherein the transmission shafts (2) are connected and driven by a transmission motor (4), characterized in that: An outer ring pressing plate (13) is provided above the pressing station of the conveyor line, and a relatively movable inner ring pressing plate (15) is provided inside the outer ring pressing plate (13) for respectively pressing the microbial test piece below. The upper end surfaces of the outer ring pressing plate (13) and the inner ring pressing plate (15) are respectively connected to a pressing plate connecting plate (16) through a plurality of guide spring columns (14) for providing elastic buffering for pressing. The pressing plate connecting plate (16) is connected by a pressing motor (24) and driven to rise and fall, thereby forming a pressing action.
2. The device for automatically pressing a microorganism test piece according to claim 1, characterized in that: The pressing surface of the outer ring pressing plate (13) protrudes outward from the pressing surface of the inner ring pressing plate (15), so that during pressing, the pressing surface of the outer ring pressing plate (13) first contacts the microbial test piece, and the pressing surface of the inner ring pressing plate (15) contacts the test piece later.
3. The device for automatically pressing a microorganism test piece according to claim 2, characterized in that: A gear (19) is connected to the output shaft of the pressing motor (24), and the gear (19) meshes with and drives the rack (20) to move up and down. The rack (20) is fixedly connected to the pressing plate connecting plate (16) and is used to drive the pressing plate connecting plate (16) to move up and down for pressing. The rack (20) is slidably connected to the fixed support plate (23) via a guide rail slider structure.
4. The device for automatically pressing a microorganism test piece according to claim 3, characterized in that: A positioning piece (17) is provided on the pressure plate connecting plate (16), and the positioning piece (17) cooperates with a third sensor (18) provided on the fixed support plate (23) in relative motion to locate the position of the pressure plate connecting plate (16).
5. The device for automatically pressing a microorganism test piece according to claim 4, characterized in that: The two ends of the transmission shaft (2) are rotatably arranged on the transmission left side plate (1) and the transmission right side plate (10), respectively. The transmission motor (4) is connected to and drives the rotation of each transmission shaft (2) via a synchronous belt (5) and a corresponding synchronous wheel (3) and a tension wheel (6).
6. The device for automatically pressing a microorganism test piece according to claim 5, characterized in that: A first sensor (9) is provided at the starting end of the conveyor line for detecting and determining whether a microbial test piece has entered the conveyor line, and a second sensor (12) is provided at the pressing station of the conveyor line for detecting and determining whether a microbial test piece has arrived at the pressing station.
7. The device for automatically pressing a microorganism test piece according to claim 1 or 6, characterized in that: The transmission shaft (2) is provided with a rubber ring that provides friction, thereby facilitating the transmission of the microbial test piece.
8. The device for automatically pressing a microorganism test piece according to claim 7, characterized in that: The housing portion of the transmission motor (4) and the fixed support plate (23) are fixedly connected to the transmission left side plate (1) or the transmission right side plate (10), and the housing portion of the pressing motor (24) is fixedly connected to the fixed support plate (23).
9. The device for automatically pressing a microorganism test piece according to claim 8, characterized in that: The transmission left side plate (1) and the transmission right side plate (10) are fixedly connected to the device bottom shell (26); the device bottom shell (26) and the device upper shell (28) are enclosed to form a box structure; a test piece insertion slot (32) is provided on the front end surface of the device bottom shell (26); the inner side of the test piece insertion slot (32) faces the upper end of the transmission shaft (2) and is used for inserting and transmitting microbial test pieces; a tray (25) is provided on the front end surface of the device bottom shell (26) and located at the lower end of the outer side of the test piece insertion slot (32) and is used for carrying and aligning microbial test pieces; a touch screen (27) is provided on the front end surface of the device bottom shell (26) and located at the upper end of the outer side of the test piece insertion slot (32) and is used for displaying the number statistics of microbial test pieces and providing a human-computer interaction control interface.
10. The device for automatically pressing a microorganism test piece according to claim 9, characterized in that: A magnet (29), a power plug (30) and a switch (31) are respectively provided on the rear end surface of the device bottom shell (26); the magnet (29) is used for magnetically engaging with a corresponding test piece storage box.