Device for automatically pressing microorganism test piece

Abstract

The utility model relates to a device for automatically pressing a microorganism test piece, which comprises a conveying line which consists of a plurality of transmission shafts and is used for conveying the microorganism test piece, the transmission shafts are connected and driven by a transmission motor, an outer ring pressing plate is arranged above a pressing station of the conveying line, and an inner ring pressing plate is arranged above the outer ring pressing plate. A relatively movable inner ring pressing plate is arranged in the outer ring pressing plate and is used for respectively pressing the microorganism test pieces below, the upper end surfaces of the outer ring pressing plate and the inner ring pressing plate are respectively connected with a pressing plate connecting plate through a plurality of guide spring columns and are used for providing elastic buffering for pressing, and the pressing plate connecting plate is connected with a pressing motor and is driven to lift; and a pressing action is formed. The problems of liquid leakage, non-uniform distribution of a sample solution, transportation and inaccurate stacking quantity during manual pressing of the microorganism test piece can be solved.

Description

Technical Field

[0001] This invention relates to the field of microbial culture technology, and more specifically to a device for automatically pressing microbial test strips. Background Technology

[0002] Currently, the pressing of microbial test strips in the market is all done manually. The pressing force is uncontrollable and easily causes sample solution to leak out, directly affecting the technical accuracy of the test strips. After pressing, the test strips must be handled very slowly; otherwise, the sample solution inside the test strip may leak out. Before transferring the test strips to the incubator, if the number of strips stacked exceeds 20, the growth of the microbial strains on the bottom test strips will be inhibited, reducing the accuracy of the results. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems existing in the prior art and provide an automatic pressing device for microbial test strips. The device uses a double-layer spring pressure plate to press the microbial test strips, solving the problems of sample liquid leakage and uneven distribution of sample liquid after pressing. The device uses a transmission roller in conjunction with a rubber ring to automatically transport the microbial test strips, so that the pressed microbial test strips can fall directly into the culture box, avoiding sample solution leakage caused by manual handling of the test strips.

[0004] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0005] An automatic pressing device for microbial test strips includes a conveyor line consisting of several drive shafts for transporting microbial test strips. The drive shafts are connected to and driven by a drive motor. An outer ring pressing plate is provided above the pressing station of the conveyor line, and an inner ring pressing plate is provided inside the outer ring pressing plate for pressing the microbial test strips below. The upper end faces of the outer ring pressing plate and the inner ring pressing plate are respectively connected to a pressing plate connecting plate by several guide spring pillars to provide elastic buffer for pressing. The pressing plate connecting plate is connected to and driven to rise and fall by a pressing motor to form the pressing action.

[0006] Furthermore, the pressing surface of the outer ring pressing plate protrudes beyond the pressing surface of the inner ring pressing plate, so that during pressing, the pressing surface of the outer ring pressing plate contacts the microbial test piece first, and the pressing surface of the inner ring pressing plate contacts the test piece later.

[0007] Furthermore, a gear is connected to the output shaft of the pressing motor. The gear meshes and drives the rack to move up and down. The rack is fixedly connected to the pressure plate connecting plate and is used to drive the pressure plate connecting plate to move up and down for pressing. The rack is slidably connected to the fixed support plate through the guide rail slider structure.

[0008] Furthermore, the pressure plate connecting plate is provided with a positioning piece, which moves relative to and cooperates with the third sensor set on the fixed support plate to position the pressure plate connecting plate.

[0009] Furthermore, the two ends of the drive shaft are rotatably mounted on the left and right drive plates, respectively, and the drive motor is connected to and drives the rotation of each drive shaft through a synchronous belt and corresponding synchronous pulleys and tension pulleys.

[0010] Furthermore, a first sensor is provided at the beginning of the conveyor line to detect whether a microbial test strip has entered the conveyor line, and a second sensor is provided at the pressing station of the conveyor line to detect whether the microbial test strip has reached the pressing station.

[0011] Furthermore, the drive shaft is equipped with a rubber ring that provides friction, facilitating the transport of the microbial test strip.

[0012] Furthermore, the housing portion of the drive motor and the fixed support plate are fixedly connected to the left or right drive plate, and the housing portion of the pressing motor is fixedly connected to the fixed support plate.

[0013] Furthermore, the left and right transmission plates are fixed to the bottom shell of the device, and the bottom shell and the top shell of the device form a box structure. A test strip insertion slot is provided on the front end face of the bottom shell of the device, and the inner side of the test strip insertion slot is directly opposite the upper end of the transmission shaft for inserting and transporting microbial test strips. A tray is provided on the front end face of the bottom shell of the device, located at the lower outer side of the test strip insertion slot, for supporting and positioning the microbial test strips. A touch screen is provided on the front end face of the bottom shell of the device, located at the upper outer side of the test strip insertion slot, for displaying the number of microbial test strips and providing a human-machine interactive control interface.

[0014] Furthermore, the rear end face of the device's bottom shell is provided with a magnet, a power plug, and a switch, and the magnet is used to magnetically engage with the corresponding test piece storage box.

[0015] The beneficial effects of this invention are:

[0016] This invention uses a double-layer spring pressure plate to press the microbial test strips, solving the problems of sample liquid leakage and uneven distribution after sample pressing. It uses a transmission roller with a rubber ring to automatically transport the microbial test strips, so that the pressed microbial test strips can fall directly into the culture box, avoiding sample solution leakage caused by manual handling of test strips. It is also equipped with an LCD touch screen with a counting function to prevent the number of microbial test strips stacked from exceeding 20. Attached Figure Description

[0017] Figure 1This is a left-side perspective three-dimensional schematic diagram of the internal structure of the device of the present invention;

[0018] Figure 2 This is a right-side perspective three-dimensional schematic diagram of the internal structure of the device of the present invention;

[0019] Figure 3 This is a rear-view three-dimensional schematic diagram of the internal structure of the device of the present invention;

[0020] Figure 4 This is a front-view three-dimensional schematic diagram of the overall structure of the device of the present invention;

[0021] Figure 5 This is a rear-view three-dimensional schematic diagram of the overall structure of the device of the present invention.

[0022] The following are the labeling details in the diagram: 1. Left transmission plate, 2. Transmission shaft, 3. Synchronous pulley, 4. Transmission motor, 5. Synchronous belt, 6. Tensioner, 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 shell, 27. Touch screen, 28. Device upper shell, 29. Magnet, 30. Power plug, 31. Switch, 32. Test piece insertion slot. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] like Figure 1 As shown, an automatic pressing device for microbial test strips includes a conveyor line consisting of several drive shafts 2 for transporting microbial test strips. The drive shafts 2 are connected to and driven by a drive motor 4. An outer ring pressing plate 13 is provided above the pressing station of the conveyor line, and an inner ring pressing plate 15 is provided inside the outer ring pressing plate 13 for pressing the microbial test strips below. The upper end faces 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 several guide spring pillars 14 to provide elastic buffer for pressing. The pressing plate connecting plate 16 has multiple circular grooves corresponding to the number of guide spring pillars 14, which facilitates the positioning and vertical movement of the guide spring pillars 14 in the grooves. The pressing plate connecting plate 16 is connected to and driven by a pressing motor 24 to lift and lower, forming a pressing action.

[0025] The pressing surface of the outer ring pressing plate 13 protrudes beyond the pressing surface of the inner ring pressing plate 15, so that during pressing, the pressing surface of the outer ring pressing plate 13 contacts the microbial test strip first, and the pressing surface of the inner ring pressing plate 15 contacts the test strip later. Because pressing the outer ring of the microbial test strip first can prevent leakage, and pressing the inner ring of the microbial test strip can make the sample solution in the inner ring evenly cover the culture area of ​​the test strip. In addition, guide spring columns 14 with different elastic forces can be selected, with a smaller elastic force connecting the inner ring pressing plate 15 and a larger elastic force connecting the outer ring pressing plate 13. Such fine adjustment can make the pressing effect better.

[0026] A gear 19 is connected to the output shaft of the pressing motor 24. The gear 19 meshes and drives the rack 20 to move up and down. The rack 20 is fixedly connected to the pressure plate connecting plate 16 and is used to drive the pressure 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.

[0027] The pressure plate connecting plate 16 is provided with a positioning piece 17, which moves relative to and cooperates with the third sensor 18 provided on the fixed support plate 23 to position the pressure plate connecting plate 16.

[0028] Continue to refer to, for example Figure 1 The two ends of the drive shaft 2 are rotatably mounted on the left drive left plate 1 and the right drive right plate 10, respectively. The drive motor 4 is connected to and drives the rotation of each drive shaft 2 via a synchronous belt 5 and corresponding synchronous pulleys 3 and tension pulleys 6. In this embodiment, the synchronous pulley 3 is installed at one end of the drive shaft 2, and each synchronous pulley 3 and tension pulley 6 shares a synchronous belt 5, driven by the drive motor 4. Additionally, as... Figure 2 As 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 tray 8 is provided on the conveying surface formed by the drive shaft 2. Relative to the carrier, the conveying tray 8 moves along the conveying line under the drive of the drive shaft 2, and the microbial test strip is placed on the conveying tray 8.

[0029] The starting end of the conveyor line is equipped with a first sensor 9, which is used to detect whether a microbial test strip has entered the conveyor line. The pressing station of the conveyor line is equipped with a second sensor 12, which is used to detect whether the microbial test strip has reached the pressing station. The first sensor 9 and the second sensor 12 can be fixed to the side of the left transmission plate 1 or the right transmission plate 10.

[0030] The drive shaft 2 is provided with a rubber ring that provides friction, which facilitates the transfer of the pallet 8 and the microbial test strip.

[0031] The housing of the drive motor 4 and the fixed support plate 23 are fixedly connected to the left drive plate 1 or the right drive plate 10. In this embodiment, the fixed support plate 23 is arranged horizontally, and a pair of vertically arranged fixed brackets 7 are fixedly connected to the lower end of the fixed support plate 23. The fixed brackets 7 are respectively fixedly connected to the left drive plate 1 and the right drive plate 10. The housing of the pressing motor 24 is fixedly connected to the fixed support plate 23.

[0032] like Figure 4 and Figure 5 As shown, the left transmission plate 1 and the right transmission plate 10 are fixed to the bottom shell 26 of the device. The bottom shell 26 and the upper shell 28 of the device form a box structure. In this embodiment, the bottom shell 26 is a U-shaped structure with the opening facing upwards, and the upper shell 28 is a U-shaped structure with the opening facing downwards. The two U-shaped structures are at a 90-degree angle to form a box. A test strip insertion slot 32 is provided on the front end face of the bottom shell 26. The inner side of the test strip insertion slot 32 is directly opposite the upper end of the transmission shaft 2 and is used to insert and transport microbial test strips. A tray 25 is provided on the front end face of the bottom shell 26 and at the lower outer side of the test strip insertion slot 32 to support and position the microbial test strips. A touch screen 27 is provided on the front end face of the bottom shell 26 and at the upper outer side of the test strip insertion slot 32. It is used to display the number of microbial test strips and provide a human-machine interaction control interface, which can provide functions such as pressing quantity statistics, start, pause, and end buttons.

[0033] In this embodiment, the drive 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 via cables. The control circuit board 11 is fixed on the side of the left drive plate 1 or the right drive plate 10. The control circuit board 11 is equipped with a corresponding controller (such as a microcontroller) to control the operation of each component and display it.

[0034] The rear end face of the device bottom shell 26 is provided with a magnet 29, a power plug 30 and a switch 31, respectively. The magnet 29 is used to magnetically engage with the corresponding test piece storage box.

[0035] The specific operation process is as follows:

[0036] ① Connect the device to the power supply and turn it on;

[0037] ② Manually place the microbial test strip onto tray 25 and add the sample solution to the microbial test strip;

[0038] ③ Manually push the microbial test strip forward into the device;

[0039] ④ After the first sensor 9 detects the insertion of the microbial test strip, the drive motor 4 rotates, and through the rubber ring on the drive shaft 2, the microbial test strip moves to the second sensor 12;

[0040] ⑤ When the second sensor 12 detects that the microbial test strip is in place, the drive motor 4 stops rotating and the pressing motor 24 starts rotating, causing the pressing structure to start moving downward.

[0041] ⑥ First, press the outer ring pressure plate 13 onto the outer edge of the microbial test strip, and then press the inner ring pressure plate 15 onto the central culture area of ​​the microbial test strip to ensure that the sample solution is evenly covered.

[0042] ⑦ After pressing is in place, the positioning plate 17, together with the third sensor 18, provides a signal to stop the pressing motor 24 from rotating and start rotating in the opposite direction, so that the pressing structure moves upward.

[0043] ⑧ After the pressing structure is reset, the drive motor 4 continues to rotate, causing the microbial test strip to be conveyed out of the device.

[0044] Furthermore, it should be noted that, unless otherwise specified or indicated, the terms "first," "second," "third," etc., in the specification are used only to distinguish the various components, elements, and steps in the specification, and are not used to indicate the logical or sequential relationships between the various components, elements, and steps.

[0045] Those skilled in the art will understand that the relevant modules and their functions involved in this invention can be implemented by loading conventional computer software programs or related protocols in the prior art onto the improved hardware and the devices, components, or systems they constitute, and are not improvements to existing computer software programs or related protocols. For example, the improved computer hardware system can still achieve its specific functions by loading existing software operating systems. Therefore, it is understood that the innovation of this invention lies in the improvement of hardware modules in the prior art and their connection and combination relationships, rather than merely in the improvement of the software or protocols loaded in the hardware modules to achieve the relevant functions.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for automatic pressing of microbiological test sheets, comprising a conveying line for conveying microbiological test sheets consisting of several transmission shafts (2) connected and driven by a transmission motor (4), characterized in that An outer ring pressing plate (13) is arranged above the pressing station of the conveying line, and an inner ring pressing plate (15) movably arranged in the outer ring pressing plate (13) is used to press the microbial test sheet below, the upper end surfaces of the outer ring pressing plate (13) and the inner ring pressing plate (15) are 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 and driven to lift by a pressing motor (24) to form a pressing action; The pressing surface of the outer ring pressing plate (13) protrudes outwardly from the pressing surface of the inner ring pressing plate (15), so that when pressing, the pressing surface of the outer ring pressing plate (13) contacts the microbial test sheet first, and the pressing surface of the inner ring pressing plate (15) contacts the test sheet later; A gear (19) is connected to the output shaft of the pressing motor (24), the gear (19) meshes with and drives a rack (20) to lift, the rack (20) is fixedly connected to the pressing plate connecting plate (16) to drive the pressing plate connecting plate (16) to lift and press, and the rack (20) is slidingly connected to a fixed support plate (23) through a guide rail and a sliding block structure; A positioning sheet (17) is arranged on the pressing plate connecting plate (16), and the positioning sheet (17) is movably matched with a third sensor (18) arranged on the fixed support plate (23) to position the pressing plate connecting plate (16).

2. The apparatus for automatically pressing a microbiological test sheet according to claim 1, wherein Both ends of the transmission shaft (2) are rotatably arranged on a transmission left side plate (1) and a transmission right side plate (10), and 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 tension wheels (6).

3. The apparatus for automatically pressing a microbiological test sheet according to claim 2, wherein A first sensor (9) is arranged at the starting end of the conveying line to detect whether the microbial test sheet enters the conveying line, and a second sensor (12) is arranged at the pressing station of the conveying line to detect whether the microbial test sheet reaches the pressing station.

4. The apparatus for automatically pressing a microbiological test piece according to claim 1 or 3, characterized by A rubber ring providing friction is arranged on the transmission shaft (2) to facilitate the transmission of the microbial test sheet.

5. The apparatus for automatically pressing a microbiological test sheet according to claim 4, wherein The housing part 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 part of the pressing motor (24) is fixedly connected to the fixed support plate (23).

6. The apparatus for automatically pressing a microbiological test sheet according to claim 5, wherein The transmission left side plate (1) and the transmission right side plate (10) are fixedly connected to a device bottom shell (26), and the device bottom shell (26) and a device upper shell (28) form a box structure, a test sheet insertion slot (32) is arranged on the front end surface of the device bottom shell (26) and faces the upper end of the transmission shaft (2) on the inner side of the test sheet insertion slot (32) to insert and transmit the microbial test sheet, a tray (25) is arranged on the front end surface of the device bottom shell (26) and located on the lower end of the outer side of the test sheet insertion slot (32) to support and position the microbial test sheet, and a touch screen (27) is arranged on the front end surface of the device bottom shell (26) and located on the upper end of the outer side of the test sheet insertion slot (32) to display the number statistics of the microbial test sheet and provide a man-machine interaction control interface.

7. The apparatus for automatically pressing a microbiological test sheet according to claim 6, wherein The rear end face of the device bottom shell (26) is respectively provided with a magnet (29), a power plug (30) and a switch (31), the magnet (29) is used for magnetic attraction cooperation with a corresponding test piece storage box.

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