Bidirectional movement structure of multifunctional microplate reader

Abstract

The utility model provides a bidirectional movement structure of a multifunctional microplate reader. The bidirectional movement structure comprises an operation table board; the X-axis driving mechanism comprises a first X-axis sliding shaft, an X-axis conveying belt and a second X-axis sliding shaft which are arranged on the operation table top at intervals, and the X-axis conveying belt is driven by an X-axis motor arranged on the operation table top; the Y-axis driving mechanism comprises a sliding seat arranged on the X-axis conveying belt, a first Y-axis sliding shaft and a second Y-axis sliding shaft, the first Y-axis sliding shaft and the second Y-axis sliding shaft are arranged on the sliding seat in a spaced mode, the two ends of the sliding seat are arranged on the first X-axis sliding shaft and the second X-axis sliding shaft in a sliding and penetrating mode respectively, a Y-axis conveying belt is arranged below one of the first Y-axis sliding shaft and the second Y-axis sliding shaft, and the Y-axis conveying belt is arranged below the other of the first Y-axis sliding shaft and the second Y-axis sliding shaft. And the Y-axis conveyor belt is driven by a Y-axis motor arranged on the sliding seat and is used for linking the detection tray to move along the axial directions of the first Y-axis sliding shaft and the second Y-axis sliding shaft. The technical problem of displacement deviation of traditional equipment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ELISA plate detection, in particular to a bidirectional motion structure of a multifunctional ELISA instrument. Background Art

[0002] The multifunctional microplate reader is an instrument used to detect the fluorescence, luminescence and absorption of samples in the microplate. The detection of fluorescence, luminescence and absorption is a single-channel detection port. To detect samples in a 6-384-well microplate, each well of the 6-384-well plate needs to be moved to the detection position in turn. In order to achieve the purpose of automatic detection, it is necessary to drive the detection tray to move in both directions of the XY axis.

[0003] In the existing equipment, based on the position of the origin, the detection tray is pulled along the X-axis direction by the X-axis stepper motor, and the detection tray is pulled along the Y-axis direction by the Y-axis stepper motor. Figure 1 As shown, the X-axis stepper motor 101 drives two X-axis belts 102 under the axis to move, and the Y-axis stepper motor 201 drives a Y-axis belt 202 under the axis to move; by setting the coordinates of the XY axis, the detection tray is moved to the corresponding position to start the detection. However, the above equipment has the following disadvantages: 1. Since the X-axis is long, when the detection tray moves to the rear position of the X-axis, there will be obvious errors in the moving distance of the detection tray, causing the hole position to shift; 2. Since there is only one belt on the Y-axis, when the X value is large, there will also be deviations in its pulling distance. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a bidirectional motion structure of a multifunctional microplate reader to solve the technical problem of positioning deviation existing in traditional equipment in the related technology.

[0005] The utility model provides a multifunctional microplate reader bidirectional motion structure, comprising:

[0006] Worktop;

[0007] An X-axis driving mechanism comprises a first X-axis sliding shaft, an X-axis conveyor belt and a second X-axis sliding shaft which are arranged at intervals on the operating table, wherein the X-axis conveyor belt is driven by an X-axis motor arranged on the operating table;

[0008] The Y-axis driving mechanism includes a slide seat arranged on the X-axis conveyor belt, and a first Y-axis slide shaft and a second Y-axis slide shaft arranged on the slide seat at an interval, the two ends of the slide seat are respectively slidably penetrated through the first X-axis slide shaft and the second X-axis slide shaft, a Y-axis conveyor belt is arranged below one of the first Y-axis slide shaft and the second Y-axis slide shaft, the Y-axis conveyor belt is driven by a Y-axis motor arranged on the slide seat, and is used for linkage detection tray to move along the axial direction of the first Y-axis slide shaft and the second Y-axis slide shaft.

[0009] Further, columns are provided at both ends of the first X-axis sliding shaft and both ends of the second X-axis sliding shaft. The columns are fixed to the operation tabletop, and the first X-axis sliding shaft and the second X-axis sliding shaft are suspended relative to the operation tabletop.

[0010] Further, at least one of the columns is formed with a zero return point for abutting against or separating from the sliding seat.

[0011] Further, the zero return point is provided with a notch, and the notch is arranged in the direction towards the sliding seat.

[0012] Further, an elastic pad is arranged in the notch.

[0013] Further, two X-axis fixing members are provided on the operation tabletop, and each X-axis fixing member is provided with a first tension pulley, and the X-axis conveyor belt is wound around the first tension pulley.

[0014] Further, two Y-axis fixing members are provided on the sliding seat, and each Y-axis fixing member is provided with a second tension pulley, and the Y-axis conveyor belt is wound around the second tension pulley.

[0015] Further, the first X-axis sliding shaft and the second X-axis sliding shaft are arranged in parallel;

[0016] The first Y-axis sliding shaft and the second Y-axis sliding shaft are arranged in parallel.

[0017] Further, the operation tabletop is provided with an X-axis infrared sensor; and / or

[0018] The sliding seat is provided with a Y-axis infrared sensor.

[0019] Further, the operation tabletop is provided with fluorescent light passing holes and light absorption light passing holes at intervals.

[0020] Compared with the prior art, the utility model has the following beneficial effects: The sliding seat can be moved along the X-axis direction through the X-axis conveyor belt. During this process, the sliding seat is guided by the first X-axis sliding shaft and the second X-axis sliding shaft, so that the whole sliding seat moves smoothly; at the same time, the X-axis conveyor belt is placed between the two sliding shafts, so that one X-axis conveyor belt in the X-axis direction is reduced, saving production costs; furthermore, the detection tray is directly arranged at the Y-axis conveyor belt and is guided by the first Y-axis sliding shaft and the second Y-axis sliding shaft, and can be driven by the Y-axis conveyor belt to move along the Y-axis direction, so as to replace the detection tray originally commonly arranged in the XY-axis direction with a detection tray directly arranged in the Y-axis direction, and realize the two-way movement of the detection tray through the transition connection of the sliding seat; and the detection tray is changed from the original long-distance X-axis to be installed at the short-distance Y-axis, so that the movement is more accurate and detection errors are avoided; in addition, the usage amounts of the X-axis sliding shaft and the Y-axis sliding shaft are reduced, the production cost is reduced, and the production and assembly difficulty is also reduced. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an XY-axis two-way positioning device in the prior art;

[0022] Figure 2 It is a schematic structural diagram of a two-way movement structure of a multifunctional microplate reader in an embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of a Y-axis driving mechanism in an embodiment of the present invention.

[0024] Explanation of the reference numerals in the drawings:

[0025] 101, X-axis stepper motor; 102, X-axis belt; 201, Y-axis stepper motor; 202, Y-axis belt;

[0026] 1, operating table; 2, first X-axis sliding shaft; 3, X-axis conveyor belt; 4, second X-axis sliding shaft; 5, sliding seat; 6, first Y-axis sliding shaft; 7, second Y-axis sliding shaft; 8, Y-axis conveyor belt; 9, detection tray; 10, column; 11, notch; 12, first tensioning wheel; 13, second tensioning wheel; 14, X-axis infrared sensor; 15, Y-axis infrared sensor; 16, fluorescence light passing hole; 17, absorption light passing hole.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the drawings. Specific embodiments

[0028] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the technical solutions in the present invention will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In the embodiment of the present invention, as Figure 1 、 Figure 2As shown in the figure, the bidirectional movement structure of the multifunctional microplate reader includes: an operation table 1, an X-axis driving mechanism, and a Y-axis driving mechanism; the X-axis driving mechanism includes a first X-axis sliding shaft 2, an X-axis conveyor belt 3, and a second X-axis sliding shaft 4 that are arranged at intervals on the operation table 1, and the X-axis conveyor belt 3 is driven by an X-axis motor arranged on the operation table 1; the Y-axis driving mechanism includes a sliding seat 5 arranged on the X-axis conveyor belt 3, and a first Y-axis sliding shaft 6 and a second Y-axis sliding shaft 7 that are arranged at intervals on the sliding seat 5. The two ends of the sliding seat 5 are respectively slidably penetrated through the first X-axis sliding shaft 2 and the second X-axis sliding shaft 4. Below one of the first Y-axis sliding shaft 6 and the second Y-axis sliding shaft 7, there is a Y-axis conveyor belt 8, and the Y-axis conveyor belt 8 is driven by a Y-axis motor arranged on the sliding seat 5, and is used to drive the detection tray 9 to move along the axial directions of the first Y-axis sliding shaft 6 and the second Y-axis sliding shaft 7 in a linkage manner.

[0030] Specifically, in the embodiment of the present invention, the operation table 1 has a length direction and a width direction. The length direction is defined as the X-axis direction, and the width direction is defined as the Y-axis direction.

[0031] In the embodiment of the present invention, an X-axis driving mechanism is arranged on the operation table 1. The X-axis driving mechanism includes a first X-axis sliding shaft 2, an X-axis conveyor belt 3, and a second X-axis sliding shaft 4 that are arranged at intervals. The above three all extend along the X-axis direction, and the X-axis conveyor belt 3 is driven by an X-axis motor arranged on the operation table 1 (the X-axis motor is arranged at the bottom of the operation table 1 to optimize the top space of the operation table 1 so that each part can be reasonably installed). On the other hand, the two synchronous belts in the X-axis direction are replaced with an X-axis conveyor belt 3 placed between the two X-axis sliding shafts. Subtracting one synchronous belt can save production costs; at the same time, replacing the original four X-axis sliding shafts with two X-axis sliding shafts can also save production costs and reduce the difficulty of production and assembly.

[0032] In the embodiment of the present invention, a Y-axis driving mechanism is arranged in the Y-axis direction. The Y-axis driving mechanism includes a sliding seat 5, a first Y-axis sliding shaft 6, a second Y-axis sliding shaft 7, and a Y-axis conveyor belt 8. The sliding seat 5 is driven by the X-axis conveyor belt 3 so that the sliding seat 5 can move back and forth along the X-axis direction; during installation, two mounting holes are formed at both ends of the sliding seat 5 for respectively passing through the first X-axis sliding shaft 2 and the second X-axis sliding shaft 4 so that the sliding seat 5 can move smoothly during the movement process; the above two Y-axis sliding shafts are arranged at intervals on the sliding seat 5, and the Y-axis conveyor belt 8 is located below one of the Y-axis sliding shafts and is driven by a Y-axis motor arranged on the sliding seat 5; thus, the detection tray 9 is installed at the Y-axis conveyor belt 8, and its two ends are penetrated by the first Y-axis sliding shaft 6 and the second Y-axis sliding shaft 7, so as to drive the detection tray 9 to move back and forth smoothly in the Y-axis direction through the Y-axis conveyor belt 8 under the drive of the Y-axis motor, and cooperate with the X-axis driving mechanism to realize the bidirectional movement of the detection tray 9 in the X-axis direction and the Y-axis direction.

[0033] Specifically, the above-mentioned detection tray 9 is arranged at the Y-axis driving mechanism and installed at the X-axis driving mechanism through the slide block 5 in the Y-axis driving mechanism, so that the Y-axis motor can directly drive the detection tray 9 to move. At the same time, when moving in the X-axis direction, the Y-axis motor moves together, so as to change the original mode that requires the joint drive of the X and Y axes to a mode that can be driven independently, and change the detection tray 9 from the original long-distance X-axis to be installed at the short-distance Y-axis, making the movement more accurate and avoiding detection errors.

[0034] In this embodiment, the production cost is saved and the production and assembly difficulty is reduced by reducing the quantity in the installation quantity, that is: replacing the original two X-axis synchronous belts with one X-axis conveyor belt 3 placed between the two X-axis sliding shafts; and replacing the original four long sliding shafts and four short sliding shafts with two long sliding shafts (the first X-axis sliding shaft 2, the second X-axis sliding shaft 4) and two short sliding shafts (the first Y-axis sliding shaft 6, the second Y-axis sliding shaft 7); on the other hand, the detection tray 9 is arranged at the slide block 5 of the Y-axis driving mechanism and connected to the X-axis driving mechanism through the slide block 5, so as to adjust the position of the detection tray 9 in the two directions of the X and Y axes asynchronously. At the same time, the detection tray 9 is changed from the original long-distance X-axis to be installed at the short-distance Y-axis, making the movement more accurate and reducing the measurement error.

[0035] As Figure 2 shown, in one embodiment, columns 10 are provided at both ends of the first X-axis sliding shaft 2 and both ends of the second X-axis sliding shaft 4, and the columns 10 are fixed to the operation table 1, and the first X-axis sliding shaft 2 and the second X-axis sliding shaft 4 are suspended relative to the operation table 1. Specifically, in order to enable the slide block 5 to slide back and forth bidirectionally on the X and Y axes, in this embodiment, a column 10 is fixed at each of the four top corners of the operation table 1, and the column 10 is used to position the first X-axis sliding shaft 2 and the second X-axis slide block 5, so that the two X-axis sliding shafts are arranged close to the middle of the column 10, so as to enable the two X-axis sliding shafts to be suspended relative to the operation table 1, forming a space therebetween, thereby avoiding the slide block 5 touching the operation table 1 during the movement. At the same time, the setting of the column 10 also increases the stability of the two X-axis sliding shafts and improves the movement stability of the slide block 5.

[0036] Further, in one embodiment, at least one of the columns 10 is formed with a zero return point for abutting against or separating from the slide block 5. Specifically, in order to calibrate this structure, a zero return point is set at one of the columns 10. Before or after the detection, the slide block 5 abuts against the zero return point, and during the detection process, the movement of the slide block 5 causes it to separate from the zero return point; then the movement distance of the slide block 5 can be judged by the distance between the slide block 5 and the zero return point, and then the position state of the detection tray 9 on the X and Y axis coordinates can be obtained.

[0037] Furthermore, in one embodiment, the zeroing point is provided with a notch 11, and the notch 11 is arranged in the direction of the slide 5. Specifically, in order to improve the accuracy of the above-mentioned zeroing point, the present embodiment provides a notch 11 at the zeroing point, and the notch 11 is arranged in the direction of the slide 5, so that the end of the slide 5 can partially extend into the notch 11, and when the two are in contact, the present structure can be zeroed. Of course, in order to balance the force of the slide 5, the two ends thereof are usually arranged to have the same structure or a mirrored structure, so a notch can also be opened on the column at the corresponding position of the other end thereof, for the end of the slide 5 at that position to extend into it, so that the two ends of the slide 5 are kept in the same position, and the slide 5 is prevented from being deflected in the initial position. Preferably, an elastic pad is provided in the notch 11.

[0038] like Figure 2 As shown, in one embodiment, the operating table 1 is provided with two X-axis fixing members, each of which is provided with a first tensioning wheel 12, and the X-axis conveyor belt 3 is arranged around the first tensioning wheel 12. Specifically, in order to enable the X-axis conveyor belt 3 to drive the slide 5 to slide back and forth along the X-axis direction, the present embodiment fixes two X-axis fixing members at the operating table 1 to install two first tensioning wheels 12, so that the X-axis conveyor belt 3 is arranged around the first tensioning wheel 12, so that the slide 5 can be smoothly moved by the X-axis conveyor belt 3 under the drive of the X-axis motor.

[0039] like Figure 3 As shown, in one embodiment, the slide 5 is provided with two Y-axis fixing members, each of which is provided with a second tensioning wheel 13, and the Y-axis conveyor belt 8 is arranged around the second tensioning wheel 13. Specifically, in order to enable the detection tray 9 to move smoothly along the Y-axis, the present embodiment provides two Y-axis fixing members on the slide 5 for installing the two second tensioning wheels 13, so that the Y-axis conveyor belt 8 is arranged around the second tensioning wheel 13, and the Y-axis conveyor belt 8 is driven by the Y-axis motor to link the detection tray 9 to slide in the Y-axis direction.

[0040] like Figure 2 , Figure 3 The first X-axis slide shaft 2 is arranged in parallel with the second X-axis slide shaft 4; the first Y-axis slide shaft 6 is arranged in parallel with the second Y-axis slide shaft 7; and they are used to guide the slide seat 5 and the detection tray 9 respectively, so that both can move smoothly along the XY axis directions respectively.

[0041] like Figure 2 , Figure 3 As shown, in one embodiment, the operating table 1 is provided with an X-axis infrared sensor 14; the slide 5 is provided with a Y-axis infrared sensor 15; the two infrared sensors can detect the moving position of the structure in the XY axis direction, and can cooperate with the above-mentioned zero point to realize automatic movement and detection of the ELISA instrument through an external control device.

[0042] As Figure 2 shown, in one embodiment, the operation tabletop 1 is provided with fluorescence light-transmitting holes 16 and absorption light-transmitting holes 17 at intervals; and is used to cooperate with the absorption spectrum light-transmitting holes of the detection tray 9 to achieve the purpose of detecting the fluorescence, luminescence, and absorption light of the sample.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A two-way movement structure of a multifunctional microplate reader, characterized in that, Comprising: Operating tabletop; X-axis driving mechanism, including a first X-axis sliding shaft, an X-axis conveyor belt and a second X-axis sliding shaft that are spaced on the operating tabletop, and the X-axis conveyor belt is driven by an X-axis motor provided on the operating tabletop; Y-axis driving mechanism, including a sliding seat provided on the X-axis conveyor belt, and a first Y-axis sliding shaft and a second Y-axis sliding shaft that are spaced on the sliding seat. Both ends of the sliding seat are slidably penetrated through the first X-axis sliding shaft and the second X-axis sliding shaft respectively. A Y-axis conveyor belt is provided below one of the first Y-axis sliding shaft and the second Y-axis sliding shaft, and the Y-axis conveyor belt is driven by a Y-axis motor provided on the sliding seat, and is used to drive the detection tray to move along the axial directions of the first Y-axis sliding shaft and the second Y-axis sliding shaft in a linkage manner.

2. The two-way movement structure of a multifunctional microplate reader according to claim 1, characterized in that Columns are provided at both ends of the first X-axis sliding shaft and both ends of the second X-axis sliding shaft, and the columns are fixed to the operating tabletop, and the first X-axis sliding shaft and the second X-axis sliding shaft are suspended relative to the operating tabletop.

3. The bidirectional movement structure of a multifunctional microplate reader according to claim 2, characterized in that, At least one of the columns is formed with a zero return point for abutting or separating from the sliding seat.

4. The two-way movement structure of a multifunctional microplate reader according to claim 3, characterized in that, The zero return point is provided with a notch, and the notch is arranged in the direction towards the sliding seat.

5. The bidirectional movement structure of a multifunctional microplate reader according to claim 4, characterized in that An elastic pad is provided in the notch.

6. A two-way movement structure of a multifunctional microplate reader according to any one of claims 1-5, characterized in that, Two X-axis fixing members are provided on the operating tabletop, and each X-axis fixing member is provided with a first tension pulley, and the X-axis conveyor belt is wound around the first tension pulley.

7. A two-way movement structure of a multifunctional microplate reader according to any one of claims 1-5, characterized in that, Two Y-axis fixing members are provided on the sliding seat, and each Y-axis fixing member is provided with a second tension pulley, and the Y-axis conveyor belt is wound around the second tension pulley.

8. The two-way movement structure of a multifunctional microplate reader according to claim 1, characterized in that, The first X-axis sliding shaft and the second X-axis sliding shaft are arranged in parallel; The first Y-axis sliding shaft and the second Y-axis sliding shaft are arranged in parallel.

9. The two-way movement structure of a multifunctional microplate reader according to claim 1, wherein, The operating tabletop is provided with an X-axis infrared sensor; and / or The sliding seat is provided with a Y-axis infrared sensor.

10. A two-way movement structure of a multifunctional microplate reader as described in claim 1, characterized in that, The operating tabletop is provided with fluorescent light passing holes and light absorption light passing holes at intervals.

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