Automatic liquid taking type compact pipettor

Abstract

The utility model provides an automatic liquid taking type compact pipettor. The automatic liquid taking type compact pipettor comprises a fixing frame, a foldable moving assembly, an automatic liquid taking assembly and a positioning assembly, the fixing frame comprises a base, and a vertical plate is arranged at the upper end of the base; the foldable moving assembly comprises three mechanical arms which are sequentially connected, the three mechanical arms are the first mechanical arm, the second mechanical arm and the third mechanical arm respectively, a synchronous belt is arranged in each mechanical arm, and the outer surface of each synchronous belt is connected with a sliding part; the top end of the vertical plate and a sliding piece in the second mechanical arm extend outwards to form connecting blocks. The three automatic liquid taking assemblies are controlled by the synchronous belts to move front and back, left and right and up and down, the low-noise function is achieved, complex program design of a traditional three-axis mechanical arm is not needed, and use cost is saved. Meanwhile, the mechanical arm can be folded, so that the mechanical arm is attached to the side wall of the vertical plate, the size of the equipment is reduced, and the equipment storage box is convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipette technology field especially relates to a kind of automatic liquid-taking compact pipette. BACKGROUND

[0002] Pipette is a kind of precise laboratory equipment, is specially used to accurately remove and distribute micro liquid, plays indispensable role in biochemistry, molecular biology, drug research and development and multiple scientific research fields. Its design aims at significantly improving the accuracy and efficiency of experiment, effectively reducing the error caused by human operation, ensuring the reliability and repeatability of experimental data.

[0003] With the progress of science and technology, automatic pipetting system emerges as the times require, it integrates advanced automation technology into liquid processing process, builds a highly integrated biomedical laboratory automation operation platform. The system can automatically complete sample addition, reagent accurate distribution, incubation and a series of complex operations, not only significantly reduces the error caused by human intervention, but also greatly reduces the labor intensity of scientific research personnel, improves overall work efficiency.

[0004] However, traditional three-axis pipette adopts closed structure, and the volume is large, which brings many inconveniences to the space utilization, equipment handling and storage of laboratory.

[0005] In view of this technical bottleneck, we propose an automatic liquid-taking compact pipette to solve the problem of large volume of existing pipette, equipment handling and storage inconvenience. CONTENT OF THE UTILITY MODEL

[0006] In view of the above-mentioned shortcomings of prior art, the purpose of the utility model is to provide an automatic liquid-taking compact pipette, to solve the problem of large volume of existing pipette, equipment handling and storage inconvenience.

[0007] To achieve the above-mentioned purpose and other related purposes, the utility model provides an automatic liquid-taking compact pipette, comprising: fixed frame, foldable mobile assembly, automatic liquid-taking assembly and positioning assembly.

[0008] The fixed frame comprises base, and the upper end of the base is provided with vertical plate.

[0009] The foldable mobile assembly comprises three mechanical arms connected in sequence, namely a first mechanical arm, a second mechanical arm and a third mechanical arm, each of which is internally provided with a synchronous belt, and the outer surface of each synchronous belt is connected with a sliding piece; the top end of the vertical plate and the sliding piece in the second mechanical arm are outwardly extended to form a connecting block, and the two connecting blocks are connected with the first mechanical arm and the third mechanical arm respectively, and the first mechanical arm and the third mechanical arm can rotate along the connecting part of the corresponding connecting block; each connecting block is provided with a locking piece, and the two locking pieces are used for locking the first mechanical arm and the third mechanical arm respectively.

[0010] The automatic liquid taking assembly is arranged on the sliding piece of the third mechanical arm.

[0011] The positioning assembly is arranged at the bottom of the side wall of the base and is used for positioning the reagent box.

[0012] Preferably, the four corners of the sliding piece are outwardly extended to form a sliding block, and the two ends of each of the three mechanical arms are provided with a sliding groove matched with the sliding block.

[0013] Preferably, the locking piece comprises a fixed plate connected with the connecting block, the fixed plate is elastically connected with a positioning block, the two ends of the positioning block are elastically connected with a protruding block, the two ends of the positioning block are provided with a groove, the protruding block can slide in the groove, and the upper end of the positioning block is provided with a handle; the outer wall of the first mechanical arm and the third mechanical arm is provided with two limiting plates, and the middle part of the limiting plate is provided with a notch matched with the protruding block.

[0014] Preferably, a telescopic rod one is connected between the fixed plate and the positioning block, and a spring is sleeved on the outer surface of the telescopic rod one.

[0015] Preferably, the bottom of the side wall of the vertical plate is provided with an elastic buckle matched with the first mechanical arm.

[0016] Preferably, the automatic liquid taking assembly comprises a mounting plate, the upper side wall of the mounting plate is provided with an electric push rod, the lower end of the electric push rod is connected with a pressing block, and the lower side wall of the mounting plate is provided with an elastic clamping plate.

[0017] Preferably, the elastic clamping plate is a double-layer arc-shaped structure, the mounting plate and the elastic clamping plate are detachably connected, and the center line of the pressing block and the arc-shaped center line of the elastic clamping plate are overlapped.

[0018] Preferably, the positioning assembly comprises a plurality of positioning strips arranged on one side of the base, the upper end of each positioning strip is provided with a T-shaped block on both sides, adjacent positioning strips are connected through X-shaped cross bars, both sides of the positioning strip are provided with guide grooves, two moving blocks are arranged in each guide groove, the moving blocks can slide in the corresponding guide groove, the four ends of each cross bar are connected with a moving block, and the lower end of the positioning strip is provided with a telescopic rod two, and the telescopic rod two is connected with the center axis of each cross bar.

[0019] Preferably, the two ends of the outermost positioning strip are provided with lifting rings, the side walls of the base are respectively provided with elastic pull ropes, the other ends of the elastic pull ropes are connected with hooks connected with the lifting rings, and the lower end of each positioning strip is provided with a cushion on both sides.

[0020] Preferably, the outer surface of the vertical plate is provided with a semi-closed frame at the bottom.

[0021] As described above, the utility model discloses an automatic liquid taking type compact pipette machine has the following beneficial effects: the utility model discloses a three by synchronous belt control automatic liquid taking assembly forward and backward and left and right and up and down movement mode, has the function of low dysphoria, does not need the complex program design of traditional three -axis mechanical arm, saves the use cost. Meanwhile, the mechanical arm can be folded, so that the mechanical arm and the side wall of the vertical plate are attached, the volume of the equipment is reduced, and the equipment storage box is convenient to carry.

[0022] The utility model also sets up the positioning assembly that can push and pull telescopic, convenient folding storage also can all positioning strip is unfolded, and the reagent box is locked, and the reagent position is positioned quickly, improves the precision of pipetting.

[0023] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value. ACCURACY

[0024] Figure 1 It is a perspective view of the automatic liquid taking type compact pipette machine.

[0025] Figure 2 It is a perspective view of the automatic liquid taking type compact pipette machine. Figure 1 It is an enlarged view of part A in the figure.

[0026] Figure 3 It is a sectional view of the locking piece of the automatic liquid taking type compact pipette machine.

[0027] Figure 4 It is a connection structure diagram of the mechanical arm of the automatic liquid taking type compact pipette machine.

[0028] Figure 5The utility model discloses a kind of automatic liquid-taking compact pipettors of the utility model Figure 1 The enlarged view of part B.

[0029] Figure 6 The utility model discloses a kind of automatic liquid-taking compact pipettors of the utility model fixed frame and positioning assembly connection structure diagram.

[0030] Figure 7 The utility model discloses a kind of automatic liquid-taking compact pipettors of the utility model Figure 6 The enlarged view of part C.

[0031] Figure 8 The utility model discloses a kind of automatic liquid-taking compact pipettors of the utility model positioning assembly bottom view.

[0032] Element number explanation

[0033] 1, fixed frame;2, foldable mobile assembly;3, automatic liquid-taking assembly;4, positioning assembly;

[0034] 10, base;11, vertical plate;12, elastic buckle;13, frame;

[0035] 21, mechanical arm one;22, mechanical arm two;23, mechanical arm three;24, synchronous belt;25, sliding piece;26, connecting block;27, locking piece;

[0036] 200, sliding groove;250, sliding block;

[0037] 270, fixed plate;271, positioning block;272, protruding block;273, recess;274, telescopic rod one;275, spring;276, limiting plate;277, recess;

[0038] 30, mounting plate;31, electric push rod;32, pressing block;33, elastic clamping plate;

[0039] 40, positioning strip;41, stop block;42, cross rod;43, telescopic rod two;

[0040] 400, guide groove;401, moving block;

[0041] 44, lifting ring;45, elastic pull rope;46, hook;47, cushion block. Specific implementation

[0042] The following is by specific embodiment to explain the embodiment of the utility model, person skilled in this technology can be easily understood from the content disclosed in the specification Other advantages and effects of the utility model.

[0043] Please refer to Figures 1 to 8It is to be understood that the structures, proportions, sizes and the like shown in the drawings of the present specification are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the present application, should still fall within the scope of the disclosed technology.

[0044] As shown in Figures 1-8 The present application provides an automatic liquid taking compact pipetting machine, comprising: a fixed frame 1, a foldable moving assembly 2, an automatic liquid taking assembly 3 and a positioning assembly 4.

[0045] The fixed frame 1 comprises a base 10, and the upper end of the base 10 is provided with a vertical plate 11, and the fixed frame 1 serves as a support for the main body.

[0046] The foldable moving assembly 2 comprises three mechanical arms connected in sequence, which are mechanical arm one 21, mechanical arm two 22 and mechanical arm three 23. The inside of each mechanical arm is provided with a synchronous belt 24, which is driven by a motor. The working principle belongs to the prior art, and the driving motor is not drawn in the figure. The outer surface of each synchronous belt 24 is connected with a sliding piece 25. By controlling the movement of the mechanical arm and the automatic liquid taking assembly 3 through the synchronous belt 24, the effect of low noise is achieved. The synchronous belt 24 controls the sliding of the sliding piece 25 in the mechanical arm, and controls the movement path of the automatic liquid taking assembly 3. It is distinguished from the traditional three-axis mechanical arm, and does not need complex path program design, saving the use cost. The top end of the vertical plate 11 and the sliding piece 25 in the mechanical arm two 22 both extend outward to form a connecting block 26, and the two connecting blocks 26 are connected with the mechanical arm one 21 and the mechanical arm three 23 respectively, and the mechanical arm one 21 and the mechanical arm three 23 can rotate along the connecting part of the corresponding connecting block 26, that is, the mechanical arm one 21 and the vertical plate 11 can rotate, and the mechanical arm two 22 and the mechanical arm three 23 can rotate. When the mechanical arm one 21 and the mechanical arm three 23 are in the folded state, the three mechanical arms are attached to the outer side wall of the vertical plate 11, reducing the volume of the equipment, facilitating the storage and transportation of the equipment. Each connecting block 26 is provided with a locking piece 27, and the two locking pieces 27 are used to lock the mechanical arm one 21 and the mechanical arm three 23 respectively; after locking, the three mechanical arms are in the unfolded state, at this time, the automatic liquid taking assembly 3 can be moved forward, backward, left, right, up and down by driving the synchronous belt 24, realizing the function of automatic movement.

[0047] The automatic liquid taking assembly 3 is arranged on the sliding piece 25 of the mechanical arm three 23, and is used for automatically taking and discharging the sample solution.

[0048] The positioning assembly 4 is arranged at the bottom of the side wall of the base 10, and is used for positioning the reagent box.

[0049] In an embodiment, referring to Figure 4 The four corners of the sliding piece 25 are outwardly extended to form sliding blocks 250, and the two ends of the three mechanical arms are provided with sliding grooves 200 matched with the sliding blocks 250. The sliding blocks 250 and the sliding grooves 200 are matched with each other, so that the sliding of the sliding piece 25 on the mechanical arms is more stable.

[0050] In an embodiment, referring to Figures 1-3 The locking piece 27 comprises a fixed plate 270 connected with the connecting block 26, the fixed plate 270 is elastically connected with a positioning block 271, the two ends of the positioning block 271 are elastically connected with protruding blocks 272, the two ends of the positioning block 271 are provided with recesses 273, the protruding blocks 272 can slide in the recesses 273, the upper end of the positioning block 271 is provided with a handle, the outer walls of the mechanical arm one 21 and the mechanical arm three 23 are provided with two limiting plates 276, the middle part of the limiting plate 276 is provided with notches 277 matched with the protruding blocks 272. In use, the mechanical arms are moved to the unfolded state, the protruding blocks 272 are pressed to make the protruding blocks 272 enter the recesses 273 of the positioning block 271, the positioning block 271 is pulled to make the elastic element stretch, the positioning block 271 is moved to the limiting plate 276 to release the protruding blocks 272, the protruding blocks 272 are popped out and pass through the notches 277 under the elastic action, and the locking of the mechanical arms is realized.

[0051] In an embodiment, referring to Figure 3 The fixed plate 270 and the positioning block 271 are connected with a telescopic rod one 274, and the telescopic rod one 274 is used for ensuring that the movement path of the positioning block 271 is always a straight line. The outer surface of the telescopic rod one 274 is sleeved with a spring 275, the two ends of the spring 275 are connected with the fixed plate 270 and the positioning block 271 respectively, and the spring 275 is used for ensuring that the positioning block 271 is quickly reset.

[0052] In an embodiment, referring to Figure 6 The side wall of the vertical plate 11 is provided with an elastic buckle 12 matched with the mechanical arm one 21. When the mechanical arms are in the folded state, the elastic buckle 12 can position the mechanical arm one 21, and the stability of the mechanical arms in the folded state is improved.

[0053] In an embodiment, referring to Figure 5The automatic liquid taking assembly 3 comprises a mounting plate 30, an electric push rod 31 is arranged above the side wall of the mounting plate 30, a pressing block 32 is connected to the lower end of the electric push rod 31, and an elastic clamping plate 33 is arranged below the side wall of the mounting plate 30 and is used for locking the pipette. In use, the pipette is locked in the elastic clamping plate 33, the pressing block 32 is controlled to descend through the electric push rod 31, the handle part of the pipette is pushed to descend through the descending of the pressing block 32, air is discharged, and when the electric push rod 31 reversely moves and drives the pressing block 32 to reset, the handle of the pipette is automatically reset under the action of the elastic element of the pipette, and the sample reagent is extracted. The structure realizes the effect of automatic liquid taking.

[0054] In an embodiment, referring to Figure 5 The elastic clamping plate 33 is a double-layer arc-shaped structure, gaps are left between the two arc-shaped structures of the elastic clamping plate 33, and the gaps are used for placing the flanges of the liquid taking device, so that the stability of positioning the liquid taking device is improved. The connection mode of the elastic clamping plate 33 and the mounting plate 30 is detachable connection. Since there are various types of liquid taking devices, in actual operation, appropriate elastic clamping plates 33 need to be selected according to the types of the liquid taking devices to position the liquid taking devices. The detachable connection mode of the elastic clamping plate 33 and the mounting plate 30 can adopt bolt connection. The center line of the pressing block 32 overlaps the arc-shaped center line of the elastic clamping plate 33, so that the precision of pressing the liquid taking device is improved.

[0055] In an embodiment, referring to Figures 6-8 The positioning assembly 4 comprises a plurality of positioning strips 40 arranged on one side of the base 10. The upper end of each positioning strip 40 is provided with a T-shaped block 41 on both sides. Adjacent positioning strips 40 are connected through X-shaped cross rods 42. The two sides of the positioning strip 40 are provided with guide grooves 400. Two moving blocks 401 are arranged in each guide groove 400. The moving blocks 401 can slide in the corresponding guide grooves 400. The four ends of each cross rod 42 are connected with a moving block 401. The positioning assembly 4 can be folded according to the X-shaped cross rods 42, so as to reduce the volume and facilitate storage and transportation. The lower end of the positioning strip 40 is provided with a telescopic rod two 43, and the center axis of each cross rod 42 is connected with the telescopic rod two 43. The telescopic rod two 43 is used for limiting the movement range of the X-shaped cross rod 42 and the positioning strip 40, so that the positioning strip 40 can only translate along the direction of the telescopic rod two 43. The X-shaped cross rod 42 is composed of two fixed rods with the same length and the middle parts of the two fixed rods intersecting with each other. In use, the positioning strip 40 is pulled to drive the telescopic rod two 43 to extend, and at the same time, the X-shaped cross rod 42 rotates around the center axis to drive the moving blocks 401 to slide in the corresponding guide grooves 400, so that the spacing between each positioning strip 40 is equal. The reagent box is placed on the two positioning strips 40, and the four corners of the reagent box are limited by the T-shaped blocks 41, so as to realize the effect of positioning the reagent box.

[0056] In an embodiment, referring toFigures 6-8 The two ends of the outermost positioning strip 40 are provided with lifting rings 44, the side walls of the base 10 are respectively provided with elastic pull ropes 45, the other ends of the elastic pull ropes 45 are connected with hooks 46 connected with the lifting rings 44, and the lower ends of each positioning strip 40 are provided with cushion blocks 47 on both sides. When the positioning assembly 4 is in the folded state, the elastic pull rope 45 is pulled to make the hook 46 hang on the lifting ring 44, the positioning strip 40 is locked, and the stability during folding is improved. The cushion block 47 is used for supporting the positioning strip 40, so that the device is prevented from being overturned due to overload after the reagent box is placed.

[0057] In an embodiment, referring to Figures 6-8 The outer surface of the vertical plate 11 is provided with a semi-closed frame 13 at the bottom, and the frame 13 is used for protecting the automatic liquid taking assembly 3 in the folded state.

[0058] The specific use process of the utility model is as follows: the hook 46 is taken off from the lifting ring 44, the positioning strip 40 is pulled, the positioning strip 40 drives the extension rod two 43 to extend, the X-shaped cross rod 42 rotates around the center shaft simultaneously, the moving block 401 slides in the corresponding guide groove 400, the spacing between each positioning strip 40 is increased by a part and is equal, the reagent box is placed on the two positioning strips 40, the four corners of the reagent box are limited through the T-shaped block 41, so that the positioning of the reagent box is realized.

[0059] The three mechanical arms are unfolded, the mechanical arm one 21 is in a horizontal state, the mechanical arm three 23 is in a vertical state, the convex block 272 is pressed to make the convex block 272 enter the groove 273 of the positioning block 271, the positioning block 271 is pulled to make the elastic element stretch, the positioning block 271 is moved to the limiting plate 276 to release the convex block 272, under the elastic action, the convex block 272 is popped out and passes through the notches 277, the locking of the mechanical arm one 21 and the mechanical arm two 22 is realized.

[0060] The pipette is placed in the elastic clamping plate 33, the forward, backward, left, right and up and down movements of the pipette are controlled through the synchronous belt 24 inside the three mechanical arms, the pipette is accurately dropped into the sample test tube, the pressing block 32 is lowered through the control of the electric push rod 31, the handle part of the pipette is pushed down through the lowering of the pressing block 32, air is discharged, when the electric push rod 31 moves reversely and drives the pressing block 32 to reset, the handle of the pipette is automatically reset under the action of the elastic element itself, the sample reagent is extracted, the operation is repeated, and the effect of pipetting is realized.

[0061] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. An automatic liquid-dispensing compact pipette, characterized in that, include: The components include a fixed frame (1), a foldable movable component (2), an automatic liquid dispensing component (3), and a positioning component (4); The fixing frame (1) includes a base (10), and the upper end of the base (10) is provided with a vertical plate (11); The foldable movable component (2) includes three robotic arms connected in sequence. The three robotic arms are robotic arm one (21), robotic arm two (22), and robotic arm three (23). Each robotic arm has a synchronous belt (24) inside. Each synchronous belt (24) has a slider (25) connected to its outer surface. The top of the vertical plate (11) and the slider (25) in robotic arm two (22) extend outward to form a connecting block (26). The two connecting blocks (26) are connected to robotic arm one (21) and robotic arm three (23) respectively. Both robotic arm one (21) and robotic arm three (23) can rotate along the connection of the corresponding connecting block (26). Each connecting block (26) is provided with a locking element (27). The two locking elements (27) are used to lock robotic arm one (21) and robotic arm three (23) respectively. The automatic liquid dispensing component (3) is mounted on the sliding part (25) of the robotic arm (23); The positioning component (4) is located at the bottom of the side wall of the base (10) and is used to position the reagent kit.

2. The automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The four corners of the slider (25) extend outward to form sliders (250), and the two ends of the three robotic arms are provided with grooves (200) that match the sliders (250).

3. The automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The locking component (27) includes a fixing plate (270) connected to the connecting block (26). The fixing plate (270) is elastically connected to a positioning block (271). Both ends of the positioning block (271) are elastically connected to protrusions (272). Both ends of the positioning block (271) are provided with grooves (273). The protrusions (272) can slide in the grooves (273). The upper end of the positioning block (271) is provided with a handle. The outer walls of the first robotic arm (21) and the third robotic arm (23) are provided with two limiting plates (276). The middle part of the limiting plate (276) is provided with a notch (277) that matches the protrusions (272).

4. The automatic liquid-dispensing compact pipette according to claim 3, characterized in that: A telescopic rod (274) is connected between the fixing plate (270) and the positioning block (271), and a spring (275) is sleeved on the outer surface of the telescopic rod (274).

5. The automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The bottom of the side wall of the vertical plate (11) is provided with an elastic buckle (12), which is matched with the robotic arm (21).

6. The automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The automatic liquid dispensing assembly (3) includes a mounting plate (30), an electric push rod (31) is provided on the upper side wall of the mounting plate (30), a pressing block (32) is connected to the lower end of the electric push rod (31), and an elastic clamping plate (33) is provided on the lower side wall of the mounting plate (30).

7. The automatic liquid-dispensing compact pipette according to claim 6, characterized in that: The elastic clamp (33) has a double-layer arc structure. The connection between the elastic clamp (33) and the mounting plate (30) is detachable. The center line of the pressing block (32) overlaps with the arc center line of the elastic clamp (33).

8. The automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The positioning component (4) includes several positioning strips (40) disposed on one side of the base (10). Each positioning strip (40) has T-shaped blocks (41) on both sides of its upper end. Adjacent positioning strips (40) are connected by X-shaped cross rods (42). Each positioning strip (40) has guide grooves (400) on both sides. Each guide groove (400) has two moving blocks (401) in it. The moving blocks (401) can slide in the corresponding guide groove (400). Each cross rod (42) has four ends connected to a moving block (401). The lower end of the positioning strip (40) is provided with a telescopic rod (43), and the telescopic rod (43) is connected to the central axis of each cross rod (42).

9. The automatic liquid-dispensing compact pipette according to claim 8, characterized in that: Both ends of the outermost positioning strip (40) are provided with lifting rings (44), and both ends of the side wall of the base (10) are provided with elastic pull ropes (45). The other end of the elastic pull ropes (45) is connected to a hook (46) connected to the lifting rings (44). Both sides of the lower end of each positioning strip (40) are provided with pads (47).

10. An automatic liquid-dispensing compact pipette according to claim 1, characterized in that: The bottom of the outer surface of the vertical plate (11) is provided with a semi-enclosed frame (13).

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