Oscillating structure and pipetting equipment

Abstract

The utility model provides an oscillation structure and pipetting equipment, and the oscillation structure comprises an oscillation working bracket, the oscillation motor assembly comprises a servo motor and a coupler, the servo motor is installed on the oscillation working support, the output end of the servo motor penetrates through the oscillation working support to be connected to the coupler, and the eccentric wheel assembly is eccentrically connected to the coupler; the vibration tray is connected to the eccentric wheel assembly, the eccentric wheel assembly can rotate relative to the vibration tray, and detachable test consumables are placed on the vibration tray; the XY-direction oscillation guide assembly is arranged between the oscillation working support and the oscillation tray, the XY-direction oscillation guide assembly is located on one side of the eccentric wheel assembly, and the XY-direction oscillation guide assembly limits the oscillation tray to move in the X direction and the Y direction in the horizontal plane; and the reset assembly comprises an optocoupler and a detection piece, one of the optocoupler and the optocoupler detection piece is arranged on the outer wall of the coupler, and the other one of the optocoupler and the optocoupler detection piece is arranged on the top surface of the oscillation working bracket.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluorescence quantitative detection, and in particular relates to an oscillating structure and a liquid transfer device. Background Art

[0002] Fluorescence quantitative PCR is a method that adds fluorescent chemicals to the DNA amplification reaction and measures the total amount of products after the labeled DNA amplification cycle. Before the sample in the fluorescence quantitative PCR instrument is tested, the mixture of sample and reagent needs to be shaken to mix evenly.

[0003] The driving force of the existing oscillation structure is provided by a motor, the output end of the motor is eccentrically connected to the test consumables (the test consumables include PCR plates, fragment analyzer plates, ELISA plates, deep-well plates, test tube racks and test tubes on the test tube racks), and the motor drives the test consumables to rotate, and the test consumables move in the horizontal plane, thereby oscillating the mixture in the test tube. In this structure, the test personnel are often required to place the test tubes containing the mixture on the specific test consumables in the oscillation structure in turn. The oscillation structure can only start working after all the test tubes are placed in turn. During the process of placing the test tubes, the oscillation structure suspends work, and the working efficiency of this structural form is low.

[0004] In addition, in the above-mentioned oscillation structure, the motor cannot reset to the origin when driving the test consumables to rotate. During the automated testing process, the automated system cannot confirm the exact position of the test consumables, thereby failing to realize automated operation. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an oscillation structure for oscillating the mixed liquid in a test tube placed thereon. The test consumables on the oscillation structure and the oscillation structure can be quickly disassembled. While the oscillation structure is working, the test tube can be placed on the test consumables to be shaken, so as to improve work efficiency.

[0006] Another object of the utility model is to provide a liquid transfer device, in which the oscillating structure is used to automatically take and place the test consumables on the oscillating structure as a whole, thereby increasing the work efficiency and reducing the labor cost.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] An oscillating structure, comprising:

[0009] Oscillating work stand;

[0010] An oscillating motor assembly and an eccentric wheel assembly, wherein the oscillating motor assembly comprises a servo motor and a coupling, wherein the servo motor is mounted on the oscillating working bracket, wherein the output end of the servo motor passes through the oscillating working bracket and is connected to the coupling, and the eccentric wheel assembly is eccentrically connected to the coupling;

[0011] An oscillating tray, which is connected to the eccentric wheel assembly, and the eccentric wheel assembly can rotate relative to the oscillating tray, and a detachable test consumable is placed on the oscillating tray;

[0012] An XY-direction oscillation guide assembly is disposed between the oscillation working support and the oscillation tray, the XY-direction oscillation guide assembly is located on one side of the eccentric wheel assembly, and the XY-direction oscillation guide assembly limits the oscillation tray to move in the X-direction and the Y-direction in the horizontal plane;

[0013] The reset component comprises an optical coupler and a detection piece. One of the optical coupler and the optical coupler detection piece is arranged on the outer wall of the coupling, and the other is arranged on the top surface of the oscillating working bracket.

[0014] Preferably, an eccentric wheel mounting groove is provided at the bottom of the vibration tray, and a gap between the eccentric wheel assembly and the eccentric wheel mounting groove ranges from 0.1 mm to 0.2 mm.

[0015] Preferably, the oscillation working bracket comprises an oscillation support frame and an oscillation mounting plate, wherein the oscillation mounting plate is mounted above the oscillation support frame, and the oscillation motor assembly is arranged in the oscillation support frame and connected to the oscillation mounting plate;

[0016] The output end of the oscillation motor assembly is connected to the eccentric wheel assembly through the oscillation mounting plate, and the XY oscillation guide assembly is connected to the oscillation mounting plate and is located on the upper surface of the oscillation mounting plate.

[0017] Preferably, the distance between the center of the eccentric wheel assembly and the center of the servo motor ranges from 1 mm to 1.5 mm.

[0018] Preferably, the eccentric wheel assembly comprises a cam follower, and the shaft of the cam follower is connected to the coupling.

[0019] Preferably, the XY-direction oscillation guide assembly comprises an X-direction oscillation guide assembly connected to the oscillation mounting plate, and a Y-direction oscillation guide assembly, and a guide connection assembly disposed between the X-direction oscillation guide assembly and the Y-direction oscillation guide assembly and connected to both of them;

[0020] The Y-direction oscillation guide assembly is arranged above the guide connection assembly, and the oscillation tray is connected to the Y-direction oscillation guide assembly.

[0021] Preferably, the X-direction oscillation guide assembly comprises a first oscillation slide rail and a first oscillation slider which slide in cooperation with each other, the first oscillation slide rail is arranged along the X-direction and connected to the oscillation mounting plate, and the first oscillation slider is connected to the guide connection assembly;

[0022] And / or the Y-direction oscillation guide assembly includes a second oscillation slide rail and a second oscillation slider that slide in cooperation with each other, the second oscillation slide rail is arranged along the Y-direction and connected to the oscillation tray, and the second oscillation slider is connected to the guide connection assembly.

[0023] Preferably, the guide connection assembly comprises:

[0024] A first guide connecting member, a first oscillating slider installation groove is provided on a bottom surface thereof, the first oscillating slider is arranged in the first oscillating slider installation groove, and the first oscillating slider is connected to the first guide connecting member;

[0025] A second guide connecting member, a top surface of which is provided with a second oscillating slider installation groove, the second oscillating slider is arranged in the second oscillating slider installation groove, and the second oscillating slider is connected to the second guide connecting member;

[0026] A fastening connector, wherein fastening installation grooves are provided on the sides of the first guide connector and the second guide connector, the second guide connector is stacked on top of the first guide connector, and the fastening connector is arranged in the fastening installation groove to connect the first guide connector and the second guide connector.

[0027] Preferably, the vibration tray comprises:

[0028] A tray bottom plate, the eccentric wheel mounting groove is arranged at the bottom of the tray bottom plate, and the bottom of the tray bottom plate is connected to the XY oscillation guide assembly;

[0029] A tray stopper, which is arranged at the edge of the tray bottom plate;

[0030] The plunger spring is installed on the inner side of the tray limiter, and the test consumables are placed on the bottom plate of the tray.

[0031] The utility model also provides a liquid transfer device, comprising the oscillating structure.

[0032] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the servo motor rotates, driving the eccentric wheel assembly to move along the horizontal plane through the coupling, thereby driving the oscillation tray connected to the eccentric wheel assembly to move along the X and Y directions in the horizontal plane to shake the test tubes, so that the liquid in each test tube can be vortex mixed around the central axis of the test tube.

[0033] The XY oscillation guide assembly provides precise guidance for the movement of the oscillation tray in the horizontal plane, and limits the movement amplitude of the oscillation tray in the X and Y directions in the horizontal plane, so as to prevent the oscillation tray from shaking with excessive displacement during the oscillation process, thereby causing the mixed liquid in the test tube to be shaken out.

[0034] In addition, the above test consumables can be quickly disassembled and placed on the shaking tray, and test tubes containing mixed reagents are placed on the test consumables. After the shaking is completed, the test tubes and test consumables are removed synchronously. When the shaking structure is working, test tubes can be placed on the test consumables for shaking, and the test tubes and test consumables are moved to the shaking tray at the same time, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the first angle of the oscillation structure in the utility model;

[0036] Figure 2 It is a structural schematic diagram of the oscillating structure in the utility model (excluding the oscillating tray);

[0037] Figure 3a It is a structural schematic diagram of a first angle of the XY-direction oscillation guide assembly in the utility model;

[0038] Figure 3b It is a structural schematic diagram of a second angle of the XY-direction oscillation guide assembly in the utility model;

[0039] Figure 4a It is a structural schematic diagram of a first angle of the first guide connecting member in the utility model;

[0040] Figure 4b It is a structural schematic diagram of a second angle of the first guide connecting member in the utility model;

[0041] Figure 5a It is a structural schematic diagram of a first angle of the vibration tray in the utility model;

[0042] Figure 5b It is a structural schematic diagram of a second angle of the vibration tray in the utility model;

[0043] Figure 5c It is a structural schematic diagram of the third angle of the vibration tray in the utility model.

[0044] Among them, 81, oscillation working bracket; 811, oscillation support frame; 812, oscillation mounting plate;

[0045] 82. Oscillating motor assembly; 821. Servo motor; 822. Coupling;

[0046] 83. eccentric wheel assembly; 831. cam follower;

[0047] 84, XY-axis oscillation guide assembly; 841, first oscillation slide rail; 842, first oscillation slider; 843, second oscillation slide rail; 844, second oscillation slider; 845, guide connection assembly; 8451, first guide connection piece; 84511, first oscillation slider installation groove; 84512, first slider fastening hole; 84513, fastening installation groove; 8452, second guide connection piece; 8453, fastening connection piece;

[0048] 85, oscillating tray; 851, tray bottom plate; 8511, guide rail mounting piece; 85111, guide rail mounting groove; 852, tray limit piece; 853, plunger spring; 8512, eccentric wheel mounting groove;

[0049] 86. Reset component; 861. Detection sheet; 862. Optocoupler;

[0050] 88. Buffer. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0054] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0058] like Figure 1-Figure 2As shown, an oscillation structure is provided in this embodiment, including an oscillation working bracket 81, an oscillation motor assembly 82, an eccentric wheel assembly 83, an XY oscillation guide assembly 84, an oscillation tray 85 and a reset assembly 86, wherein the oscillation motor assembly 82 includes a servo motor 821 and a coupling 822, the servo motor 821 is installed on the oscillation working bracket 81, the output end of the servo motor 821 passes through the oscillation working bracket 81 and is connected to the coupling 822, the eccentric wheel assembly 83 is eccentrically connected to the coupling 822, and the servo motor 821 can drive the eccentric wheel assembly 83 to rotate; preferably, the coupling 822 is a cylindrical structure.

[0059] The oscillating tray 85 is connected to the eccentric wheel assembly 83, and the eccentric wheel assembly 83 can rotate relative to the oscillating tray 85. Removable test consumables are placed on the oscillating tray 85. The test consumables include PCR plates, fragment analyzer plates, ELISA plates, deep well plates, test tube racks and test tubes on the test tube racks. The servo motor 821 provides power for oscillating the mixed liquid in the test tube.

[0060] The XY-direction oscillation guide assembly 84 is disposed between the oscillation working support 81 and the oscillation tray 85. The XY-direction oscillation guide assembly 84 is located on one side of the eccentric wheel assembly 83. The XY-direction oscillation guide assembly 84 limits the oscillation tray 85 to move along the X-direction and the Y-direction in the horizontal plane.

[0061] The reset assembly 86 includes an optical coupler 862 and a detection sheet 861, one of which is arranged on the outer wall of the coupling 822, and the other is arranged on the top surface of the oscillation working bracket 81, and the detection sheet 861 is used to determine the origin of the servo motor 821. By determining the origin position of the servo motor 821 through the optical coupler 862 and the detection sheet 861, the position coordinates of the test consumables can be accurately determined, so that the oscillation structure can be used in an automation system. Specifically, in the present embodiment, the optical coupler 862 is arranged on the top surface of the oscillation working bracket 81, and the detection sheet 861 is installed on the outer wall of the coupling 822.

[0062] In the present embodiment, the X direction and Y direction mentioned above are as follows: Figure 2 shown.

[0063] In this embodiment, the servo motor 821 rotates, driving the eccentric wheel assembly 83 to move along the horizontal plane through the coupling 822, and then driving the oscillation tray 85 connected to the eccentric wheel assembly 83 to move along the X and Y directions in the horizontal plane to shake the test tubes so that the liquid in each test tube can be vortex mixed around the central axis of the test tube.

[0064] The XY oscillation guide assembly 84 provides precise guidance for the movement of the oscillation tray 85 in the horizontal plane, and limits the movement amplitude of the oscillation tray 85 in the horizontal plane along the X and Y directions, thereby preventing the oscillation tray 85 from shaking with excessive displacement during the oscillation process, thereby causing the mixed liquid in the test tube to be shaken out.

[0065] In addition, the above test consumables can be quickly disassembled and placed on the shaking tray 85, and the test tubes containing mixed reagents are placed on the test consumables. After the shaking is completed, the test tubes and the test consumables are removed synchronously. When the shaking structure is working, test tubes can be placed on the test consumables for shaking, and the test tubes and test consumables are moved to the shaking tray 85 at the same time, thereby improving work efficiency.

[0066] In this embodiment, the test consumables can be detachably placed on the vibration tray 85. The specific manner of "detachable" includes that the test consumables can be clamped to the vibration tray 85 by the robot, and when placed on the vibration tray 85, the test consumables can be clamped by the vibration tray 85. When the robot clamps the test consumables, the test consumables can be quickly separated from the vibration tray 85 after being clamped by the robot. When the test consumables are separated from the vibration tray 85, the robot uses less force, and the mixed liquid in the test tube will not be shaken and splashed due to the separation of the vibration tray 85.

[0067] In this embodiment, the specific structure for realizing the detachable test consumables on the oscillation tray 85 includes: a plunger spring is provided on the upper side wall of the oscillation tray 85, and the side wall of the test consumables is clamped by the plunger spring. Or, a first magnetic component is provided on the oscillation tray, and a second magnetic component is provided on the test consumables, the first magnetic component and the second magnetic component are adsorbed on each other, and the first magnetic component is powered on and off to control the first magnetic component and the second magnetic component, so as to realize the rapid disassembly of the test consumables on the oscillation tray 85. Or, a lifting and rotating oil cylinder is provided on the oscillation working bracket 81, and the output end of the lifting and rotating oil cylinder is connected to a clamping rod, and the head of the clamping rod is provided with a clamping head, and the clamping head is L-shaped, and the clamping rod can be lifted and rotated through the oscillation tray. The lifting and rotating oil cylinder drives the clamping rod to rise and rotate, and rotates to a state where it can contact the test consumables, and the lifting and rotating oil cylinder descends, and the clamping head can clamp the test consumables. When the clamping head releases the test consumables, the lifting and rotating oil cylinder drives the clamping rod to rise, and then rotates, and the lifting and rotating oil cylinder descends and returns to the inside or below the oscillating working bracket 81.

[0068] The oscillation frequency range of the servo motor 821 in this embodiment is 500rpm-2000rpm. Specifically, the oscillation frequency of the servo motor 821 is 500rpm, 1000rpm, 1500rpm, and 2000rpm. When the oscillation frequency of the servo motor 821 is lower than 500rpm, the oscillation effect is poor, and the mixed liquid in the test tube is mixed evenly. When the oscillation frequency of the servo motor 821 is higher than 2000rpm, the oscillation is violent, causing the mixed liquid in the test tube to easily spill. The oscillation frequency can be adjusted according to actual needs.

[0069] Preferably, the oscillation working bracket 81 includes an oscillation support frame 811 and an oscillation mounting plate 812, the oscillation mounting plate 812 is installed above the oscillation support frame 811, the oscillation motor assembly 82 is arranged in the oscillation support frame 811 and connected to the oscillation mounting plate 812, the oscillation motor assembly 82 is located below the oscillation mounting plate 812, the output end of the oscillation motor assembly 82 passes through the oscillation mounting plate 812 and is connected to the eccentric wheel assembly 83, the XY oscillation guide assembly 84 is connected to the oscillation mounting plate 812, and is located on the upper surface of the oscillation mounting plate 812.

[0070] By setting an oscillation support frame 811 and an oscillation mounting plate 812, the oscillation support frame 811 is a hollow structure, the servo motor 821 is set in the space of the oscillation support frame 811, and its output end extends out of the oscillation mounting plate 812. The structure is compact and integral, and the oscillation support frame 811 is set as a hollow structure. The overall structure is light in weight and easy to install.

[0071] Preferably, an eccentric wheel mounting groove 8512 is provided at the bottom of the vibration tray 85, and the gap between the eccentric wheel assembly 83 and the eccentric wheel mounting groove 8512 ranges from 0.1 mm to 0.2 mm. The clearance between the eccentric wheel mounting groove 8512 and the eccentric wheel assembly 83 ensures that the eccentric wheel assembly 83 rotates, but does not drive the vibration tray 85 to rotate. During the eccentric rotation of the eccentric wheel assembly 83, it can only push the vibration tray 85 to move along the X and Y directions in the horizontal plane to generate vibration, and the vibration tray 85 and the eccentric wheel assembly 83 will not be disengaged. Preferably, the gap between the eccentric wheel assembly 83 and the eccentric wheel mounting groove 8512 is 0.1 mm.

[0072] Preferably, the distance between the center of the eccentric wheel assembly 83 and the center of the servo motor 821 ranges from 1mm to 1.5mm. Through the eccentric rotation of the eccentric wheel assembly 83, the oscillation tray 85 is displaced in the XY direction in the horizontal plane, thereby producing an oscillation effect. Further preferably, the distance between the center of the eccentric wheel assembly 83 and the center of the servo motor 821 ranges from 1mm to 1.5mm. When the distance between the two is less than 1mm, the displacement caused by the eccentric motion of the eccentric wheel assembly 83 is small, resulting in insufficient oscillation effect. When the distance between the two is greater than 1.5mm, the displacement caused by the eccentric motion of the eccentric wheel assembly 83 is large, which can easily cause the mixed reagent in the test tube to shake violently, affecting the mixing effect.

[0073] Preferably, the eccentric wheel assembly 83 includes a cam follower 831, and the shaft of the cam follower 831 is connected to the coupling 822. The bearing end of the cam follower 831 is connected to the bottom of the oscillation tray 85. The distance between the center of the cam follower 831 and the center of the servo motor 821 ranges from 1 mm to 1.5 mm. When the distance between the two is less than 1 mm, the displacement generated by the eccentric motion of the cam follower 831 is small, resulting in insufficient oscillation effect. When the distance between the two is greater than 1.5 mm, the displacement generated by the eccentric motion of the cam follower 831 is large, which can easily cause the mixed reagent in the test tube to shake violently, affecting the mixing effect. The cam follower 831 is selected according to actual needs and is a conventional structure on the market.

[0074] In other embodiments, the eccentric wheel assembly 83 includes an eccentric wheel, an eccentric connecting shaft and an intermediate connecting bearing, one end of the eccentric connecting shaft is connected to the coupling 822, and the other end of the eccentric connecting shaft is connected to the inner ring of the intermediate connecting bearing. The eccentric wheel is sleeved on the outer ring of the intermediate connecting bearing, and at the same time, the eccentric wheel is connected to the vibration tray 85 and can rotate relative to the vibration tray 85. Specifically, an eccentric wheel mounting groove 8512 is provided at the bottom of the above-mentioned vibration tray 85, and the eccentric wheel and the eccentric wheel mounting groove 8512 are clearance-matched. Preferably, the gap between the eccentric wheel and the eccentric wheel mounting groove 8512 ranges from 0.1mm to 0.2mm. Further preferably, the gap between the eccentric wheel and the eccentric wheel mounting groove 8512 is 0.1mm, 0.15mm and 0.2mm.

[0075] Preferably, the distance between the center of the eccentric wheel and the center of the stepper motor 823 (i.e., the center of the servo motor 821 and the coupling 822) is in the range of 1 mm to 1.5 mm. Preferably, the distance between the center of the eccentric wheel and the center of the stepper motor (i.e., the center of the servo motor 821 and the coupling 822) is in the range of 1 mm or 1.5 mm.

[0076] Preferably, in this embodiment, the eccentric wheel assembly 83 is a cam follower 831, and two groups of XY-direction oscillation guide assemblies 84 are provided, and the two groups of XY-direction oscillation guide assemblies 84 are symmetrically arranged on both sides of the oscillation motor assembly 82. Specifically, the two groups of XY-direction oscillation guide assemblies 84 are symmetrically arranged on both sides of the servo motor 821. When the oscillation tray 85 moves in the horizontal plane, the XY-direction oscillation guide assemblies 84 guide the movement of the oscillation tray 85 in the X and Y directions, and the two groups of XY-direction oscillation guide assemblies 84 can ensure that the oscillation tray 85 is uniformly stressed, thereby ensuring that the oscillation tray 85 moves smoothly in the horizontal plane and shakes evenly.

[0077] The bottom of the oscillating tray 85 is provided with an eccentric wheel mounting groove 8512, and the cam follower 831 is clearance-matched with the eccentric wheel mounting groove 8512. Preferably, the clearance between the cam follower 831 and the eccentric wheel mounting groove 8512 ranges from 0.1 mm to 0.2 mm. Further preferably, the clearance between the cam follower 831 and the eccentric wheel mounting groove 8512 is 0.1 mm, 0.15 mm, and 0.2 mm.

[0078] Preferably, if Figure 3a , Figure 3b , Figure 4a , Figure 4b As shown, the XY-direction oscillation guide assembly 84 includes an X-direction oscillation guide assembly, a guide connection assembly 845 and a Y-direction oscillation guide assembly, wherein the X-direction oscillation guide assembly is connected to the oscillation work support 81, specifically, the X-direction oscillation guide assembly is connected to the oscillation mounting plate 812, the guide connection assembly 845 is arranged between the X-direction oscillation guide assembly and the Y-direction oscillation guide assembly, and both the X-direction oscillation guide assembly and the Y-direction oscillation guide assembly are connected to the guide connection assembly 845, and the oscillation tray 85 is connected to the Y-direction oscillation guide assembly. By stacking the X-direction oscillation guide assembly and the Y-direction oscillation guide assembly, the two are fixed, and the oscillation tray 85 is limited to a small amplitude shaking in the horizontal plane during the movement process, and the shaking amplitude radius range is 1mm-1.5mm, so that the test tube oscillates and the mixed liquid therein is stable.

[0079] Preferably, the X-axis oscillation guide assembly includes a first oscillation slide rail 841 and a first oscillation slider 842 that slide in cooperation with each other, and the first oscillation slide rail 841 is arranged along the X-axis and connected to the oscillation working bracket 81. Specifically, the first oscillation slide rail 841 is connected to the oscillation mounting plate 812, and the first oscillation slider 842 is connected to the guide connection assembly 845. More specifically, the first oscillation slider 842 is fastened to the guide connection assembly 845 by four groups of bolts. Through the mutual cooperation and sliding of the first oscillation slide rail 841 and the first oscillation slider 842, the X-axis movement of the oscillation tray 85 is accurately guided to ensure the movement amplitude.

[0080] Preferably, the Y-direction oscillation guide assembly includes a second oscillation rail 843 and a second oscillation slider 844 that slide in cooperation with each other, and the second oscillation rail 843 is arranged along the Y direction and connected to the oscillation tray 85. The second oscillation slider 844 is connected to the guide connection assembly 845, and specifically, the second oscillation slider 844 is fastened to the guide connection assembly 845 by four groups of bolts. Through the cooperation and sliding of the second oscillation rail 843 and the second oscillation slider 844, the Y-direction movement of the oscillation tray 85 is accurately guided to ensure the movement range.

[0081] Preferably, if Figure 5a As shown, a guide rail mounting member 8511 is provided at the bottom of the oscillating tray 85, on which a guide rail mounting groove 85111 is provided, and the second oscillating slide rail 843 is installed in the guide rail mounting groove 85111. Specifically, the guide rail mounting member 8511 is fastened to the bottom of the tray bottom plate 851 by screws.

[0082] Preferably, if Figure 3a , Figure 3b and Figure 4a , Figure 4b As shown, the guide connection assembly 845 includes a first guide connection member 8451, a second guide connection member 8452 and a fastening connection member 8453, wherein a first oscillating slider installation groove 84511 is provided on the bottom surface of the first guide connection member 8451, the first oscillating slider 842 is provided in the first oscillating slider installation groove 84511, and the first oscillating slider 842 is fastened and connected to the first guide connection member 8451 by four groups of bolts. Specifically, a first slider fastening hole 84512 is provided at the bottom of the first oscillating slider installation groove 84511, and a screw is inserted through the first slider fastening hole 84512 to connect the first guide connection member 8451 and the first oscillating slider 842.

[0083] A second oscillating slider installation groove is provided on the top surface of the second guide connector 8452, and the second oscillating slider 844 is provided in the second oscillating slider installation groove. The second oscillating slider 844 is fastened to the second guide connector 8452 by four sets of bolts. The second oscillating slider 844 is supported by the second guide connector 8452 to facilitate fixing the second oscillating slider 844. Specifically, a second slider fastening hole is provided at the bottom of the second oscillating slider installation groove, and a screw is inserted through the second slider fastening hole to connect the second guide connector 8452 and the second oscillating slider 844.

[0084] The sides of the first guide connector 8451 and the second guide connector 8452 are both provided with fastening installation grooves 84513 . The second guide connector 8452 is stacked on top of the first guide connector 8451 . The fastening connector 8453 is arranged in the fastening installation grooves 84513 to connect the first guide connector 8451 and the second guide connector 8452 .

[0085] The outer dimensions of the first guide connecting member 8451 and the second guide connecting member 8452 are the same as the structures arranged thereon. After the connecting member 8453 is installed and tightened, the outer dimensions of the two are not affected. The overall structure is small in size and does not occupy too much space. The overall structure of the oscillation structure is compact.

[0086] Regarding the specific structure of the above-mentioned vibration tray 85, as Figure 5a , Figure 5b and Figure 5c As shown, the oscillating tray 85 includes a tray bottom plate 851, a tray stopper 852 and a plunger spring 853, wherein the tray bottom plate 851 is connected to the eccentric wheel assembly 83 and is also connected to the XY-direction oscillating guide assembly 84. Specifically, an eccentric wheel mounting groove 8512 is provided at the bottom of the tray bottom plate 851, and the cam follower 831 is installed in the eccentric wheel mounting groove 8512.

[0087] The tray stopper 852 is disposed at the boundary of the tray bottom plate 851. Specifically, the tray stopper 852 is disposed at the four sides of the tray bottom plate 851, or the tray stopper 852 is disposed at the corners of the tray bottom plate 851, or the tray stopper 852 is disposed at the corners and sides of the tray bottom plate 851 at the same time.

[0088] The plunger spring 853 is installed on the inner side of the tray limiter 852 . The test consumables are placed on the tray bottom plate 851 . The plunger spring 853 can quickly clamp the test consumables and can quickly release the test consumables when the test consumables are removed.

[0089] In this embodiment, the plunger spring 853 is used to clamp the side wall of the test consumables located on the tray bottom plate 851. After the shaking is completed, the test consumables and the test tubes thereon are removed by a robot or manually, thereby achieving rapid removal and placement.

[0090] Preferably, the tray limiting members 852 are disposed at the four corners of the tray bottom plate 851 , and the tray limiting members 852 are in a right-angle shape.

[0091] Preferably, if Figure 5b and Figure 5c As shown, a buffer 88 is provided on the tray bottom plate 851 , and the test consumables are placed on the buffer 88 , which can prevent slipping on the one hand, and prevent the tray bottom plate 851 from directly contacting the test consumables on the other hand, thereby avoiding noise.

[0092] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An oscillating structure, characterized in that: include: Oscillating working support (81); An oscillating motor assembly (82) and an eccentric wheel assembly (83), wherein the oscillating motor assembly (82) comprises a servo motor (821) and a coupling (822), wherein the servo motor (821) is mounted on the oscillating working support (81), an output end of the servo motor (821) passes through the oscillating working support (81) and is connected to the coupling (822), and the eccentric wheel assembly (83) is eccentrically connected to the coupling (822); An oscillating tray (85) connected to the eccentric wheel assembly (83), wherein the eccentric wheel assembly (83) is rotatable relative to the oscillating tray (85), and detachable test consumables are placed on the oscillating tray (85); An XY-direction oscillation guide assembly (84), which is disposed between the oscillation working support (81) and the oscillation tray (85), the XY-direction oscillation guide assembly (84) being located on one side of the eccentric wheel assembly (83), and the XY-direction oscillation guide assembly (84) limiting the oscillation tray (85) to move in the X direction and the Y direction in a horizontal plane; A reset assembly (86) comprises an optical coupler (862) and a detection sheet (861), wherein one of the optical coupler (862) and the detection sheet (861) is arranged on the outer wall of the coupling (822), and the other is arranged on the top surface of the oscillating working support (81).

2. The oscillating structure according to claim 1, characterized in that: An eccentric wheel mounting groove (8512) is provided at the bottom of the vibration tray (85), and a gap between the eccentric wheel assembly (83) and the eccentric wheel mounting groove (8512) ranges from 0.1 mm to 0.2 mm.

3. The oscillating structure according to claim 1, characterized in that: The oscillating working support (81) comprises an oscillating supporting frame (811) and an oscillating mounting plate (812), wherein the oscillating mounting plate (812) is mounted above the oscillating supporting frame (811), and the oscillating motor assembly (82) is arranged in the oscillating supporting frame (811) and connected to the oscillating mounting plate (812); The output end of the oscillation motor assembly (82) passes through the oscillation mounting plate (812) and is connected to the eccentric wheel assembly (83); the XY oscillation guide assembly (84) is connected to the oscillation mounting plate (812) and is located on the upper surface of the oscillation mounting plate (812).

4. The oscillating structure according to any one of claims 1 to 3, characterized in that: The distance between the center of the eccentric wheel assembly (83) and the center of the servo motor (821) ranges from 1 mm to 1.5 mm.

5. The oscillating structure according to any one of claims 1 to 3, characterized in that: The eccentric wheel assembly (83) comprises a cam follower (831), and the shaft of the cam follower (831) is connected to the coupling (822).

6. The oscillating structure according to claim 3, characterized in that: The XY-direction oscillation guide assembly (84) comprises an X-direction oscillation guide assembly and a Y-direction oscillation guide assembly connected to the oscillation mounting plate (812), and a guide connection assembly (845) disposed between the X-direction oscillation guide assembly and the Y-direction oscillation guide assembly and connected to both of them; The Y-direction oscillation guide component is arranged above the guide connection component (845), and the oscillation tray (85) is connected to the Y-direction oscillation guide component.

7. The oscillating structure according to claim 6, characterized in that: The X-direction oscillation guide assembly comprises a first oscillation slide rail (841) and a first oscillation slider (842) which slide in cooperation with each other, the first oscillation slide rail (841) being arranged along the X-direction and connected to the oscillation mounting plate (812), and the first oscillation slider (842) being connected to the guide connection assembly (845); And / or the Y-direction oscillation guide assembly includes a second oscillation slide rail (843) and a second oscillation slider (844) that slide in cooperation with each other, the second oscillation slide rail (843) is arranged along the Y-direction and connected to the oscillation tray (85), and the second oscillation slider (844) is connected to the guide connection assembly (845).

8. The oscillating structure according to claim 7, characterized in that: The guide connection assembly (845) comprises: A first guide connecting member (8451), a bottom surface of which is provided with a first oscillating slider installation groove (84511), the first oscillating slider (842) being arranged in the first oscillating slider installation groove (84511), and the first oscillating slider (842) being connected to the first guide connecting member (8451); A second guide connecting member (8452), a top surface of which is provided with a second oscillation slider installation groove, the second oscillation slider (844) is arranged in the second oscillation slider installation groove, and the second oscillation slider (844) is connected to the second guide connecting member (8452); A fastening connector (8453), the sides of the first guide connector (8451) and the second guide connector (8452) are both provided with fastening installation grooves, the second guide connector (8452) is stacked on top of the first guide connector (8451), and the fastening connector (8453) is arranged in the fastening installation groove to connect the first guide connector (8451) and the second guide connector (8452).

9. The oscillating structure according to claim 2, characterized in that: The vibration tray (85) comprises: A tray bottom plate (851), the eccentric wheel mounting groove (8512) is arranged at the bottom of the tray bottom plate (851), and the bottom of the tray bottom plate (851) is connected to the XY-direction oscillation guide assembly (84); A tray stopper (852), which is arranged at the edge of the tray bottom plate (851); The plunger spring (853) is installed on the inner side of the tray stopper (852), and the test consumables are placed on the tray bottom plate (851).

10. A liquid transfer device, characterized in that: The invention comprises the oscillating structure as described in any one of claims 1 to 9.

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