Full-automatic liquid transfer device for laboratory

Abstract

The utility model discloses a full-automatic liquid transfer device for a laboratory, which comprises a box body, a plurality of placing positions are arranged in the box body, the placing positions are used for placing and positioning trays, the trays are used for placing liquid storage bottles, and a moving assembly, a liquid taking assembly, a grabbing assembly, an uncovering assembly and a control box are further arranged in the box body. The liquid taking assembly and the grabbing assembly are installed on the moving assembly, the moving assembly is used for driving the liquid taking assembly and / or the grabbing assembly to move, the grabbing assembly is used for carrying the liquid storage bottle, and the uncapping assembly is used for opening a bottle cap of the liquid storage bottle. The liquid taking assembly is used for extracting or discharging liquid in the liquid storage bottle, and the control box is used for controlling operation of the moving assembly, the liquid taking assembly, the grabbing assembly and the uncovering assembly. The device can automatically uncover the liquid storage bottle and transfer liquid, so that the working efficiency of liquid transfer is improved, and the possibility of manual operation errors is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of experimental sample processing, and in particular to a fully automatic liquid transfer device for laboratory use. Background Art

[0002] In the operation of various analytical instruments in the laboratory, tedious manual operations are usually required before or after the liquid sample is placed in. In the existing technology, the lid of the sample bottle used for experimental analysis is usually opened or closed manually, and then the liquid sample to be tested is added to or taken out of the sample bottle through a dropper or a manual pipette. This method is not only cumbersome and inefficient, but also prone to manual errors. In addition, some toxic chemical reagents can easily cause harm to human life and health during the operation. Therefore, a fully automatic liquid transfer device for laboratory use is needed to solve the above problems. Utility Model Content

[0003] The main purpose of this application is to propose a fully automatic liquid transfer device for laboratory use, aiming to solve the problems of cumbersome and inefficient liquid sample transfer operations in existing laboratories.

[0004] To achieve the above-mentioned purpose, the fully automatic liquid transfer device for laboratory use proposed in this application includes: a box body, a plurality of placement positions are arranged inside the box body, the placement positions are used to place and position the tray, the tray is used to place the liquid storage bottle, and the box body is also provided with a moving component, a liquid collection component, a grabbing component, a cover opening component and a control box, the liquid collection component and the grabbing component are installed on the moving component, the moving component is used to drive the liquid collection component and / or the grabbing component to move, the grabbing component is used to carry the liquid storage bottle, the cover opening component is used to open the bottle cap of the liquid storage bottle, the liquid collection component is used to extract or discharge the liquid in the liquid storage bottle, and the control box is used to control the operation of the moving component, the liquid collection component, the grabbing component and the cover opening component.

[0005] Optionally, the liquid collection component includes a plunger pump and a liquid storage chamber, a first buffer component is arranged between the plunger pump and the liquid storage chamber, a needle tube is installed at one end of the liquid storage chamber away from the plunger pump, the liquid storage chamber and the plunger pump are connected by a flexible tube, and the first buffer component is used to buffer the impact force exerted on the needle tube.

[0006] Optionally, the first buffer assembly includes a first buffer block, which is fixedly mounted on the plunger pump. A buffer cavity is provided on the end face of the first buffer block corresponding to the liquid storage cavity. The liquid storage cavity is slidably mounted in the buffer cavity. A first spring is arranged between the bottom surface of the buffer cavity and the liquid storage cavity, and the two ends of the first spring respectively abut against the bottom surface of the buffer cavity and the liquid storage cavity.

[0007] Optionally, the plunger pump includes a plunger pump body, a plurality of plunger cavities are provided in the plunger pump body, plungers are sealed and slidably provided in the plunger cavities, a first motor is provided at one end of the plurality of plungers extending out, a mounting plate is provided between the first motor and the plunger pump body, the two ends of the mounting plate are respectively fixedly connected to the first motor and the plunger pump body, a drive block is slidably provided on the mounting plate, the ends of the plurality of plungers extending out are all connected to the drive block, and the drive block is threadedly connected to the output shaft of the first motor.

[0008] Optionally, the moving component is located above the placement position, and the moving component includes an X-axis drive component, a Y-axis drive component, and a Z-axis drive component. The Z-axis drive component includes a first Z-axis drive component and a second Z-axis drive component. The X-axis drive component is fixedly installed inside the box, the first end of the Y-axis drive component is installed on the drive component of the X-axis drive component, the Z-axis drive component is installed on the drive component of the Y-axis drive component, the liquid collection component is installed on the drive component of the first Z-axis drive component, and the grabbing component is installed on the drive component of the second Z-axis drive component.

[0009] Optionally, an auxiliary axis structure is provided at the second end of the Y-axis drive assembly, and the auxiliary axis structure includes an auxiliary guide rail. The auxiliary guide rail is arranged parallel to the X-axis drive assembly, and both ends of the auxiliary guide rail are respectively fixedly mounted on the inner wall of the box body. An auxiliary slider is slidably mounted on the auxiliary guide rail, and the auxiliary slider is fixedly connected to the second end of the Y-axis drive assembly through a connecting rod.

[0010] Optionally, the auxiliary slider includes a first connecting block, a second connecting block, and a third connecting block, the first connecting block is slidably mounted on the auxiliary guide rail, the second connecting block is fixedly connected to the connecting rod, the third connecting block is located between the first connecting block and the second connecting block, and the third connecting block is fixedly connected to the first connecting block, and the second connecting block has a receiving groove on one side facing the third connecting block, an elastic block is arranged in the receiving groove, and the second connecting block and the third connecting block are both fixedly connected to the corresponding elastic blocks by connecting screws.

[0011] Optionally, the gripping assembly includes a clamping body, a plurality of first clamping jaws are slidingly provided on the first end of the clamping body, a plurality of gripping rods are respectively provided on the ends of the plurality of first clamping jaws away from the clamping body, a second motor is also provided on the clamping body, a transmission assembly is provided in the clamping body, and the second motor is used to drive the plurality of first clamping jaws to move closer or apart through the transmission assembly.

[0012] Optionally, a second buffer assembly is arranged between the grab assembly and the second Z-axis drive assembly, the second buffer assembly includes a second buffer block, one end of the second buffer block is connected to the clamping claw body, and a mounting block is arranged at the other end of the second buffer block, and the mounting block is installed on the slider of the second Z-axis drive assembly. A plurality of buffer holes are opened inside the second buffer block, and a buffer bolt is arranged in the buffer hole. One end of the buffer bolt extends out of the buffer hole and is connected to the mounting block. A second spring is mounted on the outside of the buffer bolt, and one end of the second spring is fixedly connected to the inner wall of the buffer hole, and the other end of the second spring is fixedly connected to the end of the buffer bolt away from the mounting block. The second spring pulls the buffer bolt and the second buffer block.

[0013] Optionally, the cover opening assembly includes a transmission, which is installed in the box body, and an electric clamp is rotatably installed on the transmission. A plurality of second clamps are arranged above the electric clamp, and the electric clamp is used to drive the plurality of second clamps to approach and separate. The relative surfaces of the plurality of second clamps are all arranged as a V-shaped structure, and a V-shaped flexible block is installed at the V-shaped structure. A third motor is also installed on the side of the electric clamp on the transmission, and the third motor can drive the electric clamp to rotate through the transmission.

[0014] Optionally, a support plate is provided in the box body, the placement position is provided on the support plate, a positioning pin and a magnetic block are provided in the middle of the placement position, a plurality of placement holes are provided on the first surface of the tray, the placement holes are used to place the liquid storage bottles, positioning holes are provided on the second surface of the tray corresponding to the positions of the positioning pins, and a magnetic block is provided on the second surface of the tray corresponding to the positions of the magnetic blocks.

[0015] Optionally, a flip cover assembly is further provided in the box body, and the flip cover assembly includes a carrying plate, which is located above the support plate, and a support rod is provided between the carrying plate and the support plate, one end of the support rod is fixedly mounted on the support plate, and the other end of the support rod is fixedly connected to the carrying plate, and a stop needle is fixedly mounted on the carrying plate, and an optical sensor is installed on the carrying plate near the stop needle, and the optical sensor is used to detect the position of the bottle cap, and a container is provided on the support plate near the support rod, and the container is located below the stop needle.

[0016] Optionally, the box includes a frame, which is a square structure composed of multiple profiles combined by screws and a snap-on structure. A shell is provided on the outside of the frame, and the shell is a box-shaped structure formed by multiple plates fixed to the frame by screws. One side of the box is open, and a protective door is provided on one side of the box opening, and the protective door is installed on the frame through a sliding structure.

[0017] Optionally, the sliding structure includes a plurality of I-shaped sliders, which are slidably mounted on two vertical profiles on the frame, and the protective door is fixedly connected to the plurality of I-shaped sliders by screws. A coiled spring structure is arranged between the protective door and the frame, and the coiled spring structure is fixedly mounted above the frame. The coiled spring structure is connected to the protective door through a connecting belt, and the coiled spring structure is used to balance the weight of the protective door through elastic force. A handle is installed on the protective door.

[0018] Optionally, an electric lock is provided at a corner of the box body near the protective door, and a door connecting piece is provided on the outside of the vertical profile on the frame near the electric lock. The door connecting piece is fixedly connected to the protective door, and a bayonet is provided on the door connecting piece, which is used to engage with the electric lock.

[0019] Optionally, the electric lock is further provided with a magnetic sensor, and a magnetic sheet is fixedly mounted on the door connecting piece at a position corresponding to the magnetic sensor, and the magnetic sensor is used to sense the magnetic sheet.

[0020] The technical solution of the present application is to set a moving component, a liquid collection component, a grabbing component and a lid opening component inside the box body, so that the cooperation between the grabbing component and the moving component can drive the liquid storage bottle to move inside the box body, and the bottle body and the bottle cap of the liquid storage bottle can be twisted through the cooperation between the grabbing component and the lid opening component, thereby completing the opening action of the liquid storage bottle, and the liquid collection component can extract the liquid in the opened liquid storage bottle, and the use of the liquid collection component in conjunction with the moving component can enable the extracted liquid to be transferred to other liquid storage bottles; through the mutual cooperation of the above structures, the present device can automatically realize the opening of the liquid storage bottle and the transfer of liquid, thereby improving the working efficiency of liquid transfer, reducing the possibility of manual operation errors, and also avoiding human damage caused by the volatilization of toxic liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the external structure of the fully automatic liquid transfer device used in the laboratory of this application;

[0023] Figure 2 This is one of the internal structure diagrams of the fully automatic liquid transfer device used in the laboratory of this application;

[0024] Figure 3 This is the second schematic diagram of the internal structure of the fully automatic liquid transfer device used in the laboratory of this application;

[0025] Figure 4 This is a schematic diagram of the structure of the mobile component in the fully automatic liquid transfer device used in the laboratory of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the support plate and components on the support plate in the fully automatic liquid transfer device used in the laboratory of this application;

[0027] Figure 6 For this application Figure 5 A magnified schematic diagram of the local structure at point A;

[0028] Figure 7 For this application Figure 5 A magnified schematic diagram of the local structure at point B in the middle;

[0029] Figure 8 This is a schematic diagram of the structure of the lid opening assembly in the fully automatic liquid transfer device used in the laboratory of this application;

[0030] Figure 9 This is a schematic diagram of the structure of the liquid extraction component in the fully automatic liquid transfer device used in the laboratory of this application;

[0031] Figure 10 This is a schematic diagram of the structure of the grabbing component in the fully automatic liquid transfer device used in the laboratory of this application;

[0032] Figure 11 This is a schematic diagram of the internal structure of the second buffer assembly in the fully automatic liquid transfer device used in the laboratory of this application;

[0033] Figure 12 This is a schematic diagram of the internal structure of the auxiliary slider in the fully automatic liquid transfer device used in the laboratory of this application.

[0034] Description of Figure Numbers:

[0035] 1. Box; 101. Frame; 102. Housing; 103. Protective door; 1031. Door connector; 104. Handle; 105. Support leg; 106. I-shaped slider; 107. Curled spring structure; 2. Support plate; 210. Positioning position; 211. Positioning pin; 212. Magnetic block; 220. Tray; 221. Positioning hole; 222. First positioning hole; 223. Second positioning hole; 230. Liquid storage bottle; 3. Moving assembly; 310. X-axis drive Components; 320, Y-axis drive assembly; 330, first Z-axis drive assembly; 340, second Z-axis drive assembly; 350, auxiliary axis structure; 351, auxiliary guide rail; 352, auxiliary slider; 3521, first connecting block; 3522, second connecting block; 3523, third connecting block; 3524, receiving groove; 3525, elastic block; 3526, connecting screw; 353, connecting rod; 4, liquid extraction assembly; 410, plunger pump; 411, plunger pump body ; 412, plunger; 420, first motor; 421, mounting plate; 422, drive block; 430, first buffer block; 431, liquid storage cavity; 432, needle tube; 433, first spring; 434, through slot; 435, flexible tube; 5, grab assembly; 510, jaw body; 511, first jaw; 512, grab rod; 513, second motor; 514, first position sensor; 520, second buffer block; 521, mounting block; 522, buffer Block; 523, buffer bolt; 524, second spring; 6, cover opening assembly; 610, transmission; 620, electric gripper; 621, second gripper; 622, flexible block; 623, second position sensor; 630, third motor; 7, cover throwing assembly; 710, load plate; 711, support rod; 720, gear needle; 730, optical sensor; 740, container; 8, electric lock; 810, magnetic sensor; 9, control box; 10, human-computer interaction device.

[0036] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that when an element is referred to as being “fixed on” or “set on” another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0042] In the operation of various analytical instruments in the laboratory, tedious manual operations are usually required before or after the liquid sample is placed in. In the existing technology, the lid of the sample bottle used for experimental analysis is usually opened or closed manually, and then the liquid sample to be tested is added to or taken out of the sample bottle through a dropper or a manual pipette. This method is not only cumbersome and inefficient, but also prone to manual errors. In addition, some toxic chemical reagents can easily cause harm to human life and health during the operation. Therefore, a fully automatic liquid transfer device for laboratory use is needed to solve the above problems.

[0043] In view of this, the present application proposes a fully automatic liquid transfer device for laboratory use, comprising: a box body 1, wherein a plurality of placement positions 210 are arranged inside the box body 1, the placement positions 210 are used to place and position a tray 220, the tray 220 is used to place a liquid storage bottle 230, and the box body 1 is also provided with a moving component 3, a liquid collection component 4, a grabbing component 5, a cover opening component 6 and a control box 9, the liquid collection component 4 and the grabbing component 5 are installed on the moving component 3, the moving component 3 is used to drive the liquid collection component 4 and / or the grabbing component 5 to move, the grabbing component 5 is used to carry the liquid storage bottle 230, the cover opening component 6 is used to open the bottle cap of the liquid storage bottle 230, the liquid collection component 4 is used to extract or discharge the liquid in the liquid storage bottle 230, and the control box 9 is used to control the operation of the moving component 3, the liquid collection component 4, the grabbing component 5 and the cover opening component 6.

[0044] In the examples of this application, refer to Figures 1 to 12 The above-mentioned fully automatic liquid transfer device for laboratory use includes: a box body 1, the box body 1 includes a frame 101, the frame 101 is a square structure composed of multiple profiles through screws and a snap-fit ​​structure, the frame 101 is used to install and support other components, a shell 102 is set on the outside of the frame 101, the shell 102 is a box-shaped structure formed by multiple rectangular plates fixedly installed on the frame 101 by screws, the shell 102 is used to isolate the inside and outside of the box body 1, and can protect the components in the box body 1. One side of the box body 1 is open, which is used to put samples into the box body 1 or take out samples from the box body 1. A rectangular protective door 103 is set on one side of the opening of the box body 1, and the protective door 103 is slidably connected to the frame 101 through a sliding structure.

[0045] refer to Figure 1 、 Figure 2The sliding structure specifically includes a plurality of I-shaped sliders 106, and the plurality of I-shaped sliders 106 are slidably mounted on two vertical profiles on the frame 101. The protective door 103 is fixedly connected to the plurality of I-shaped sliders 106 by screws, so that the protective door 103 can be opened or closed by sliding up and down through the I-shaped sliders 106. A coiled spring structure 107 is provided between the protective door 103 and the frame 101, and the coiled spring structure 107 is fixedly mounted on the top of the frame 1. The coiled spring structure 107 is connected to the protective door 103 through a connecting belt. The coiled spring structure 107 is used to balance the weight of the protective door 103 through elastic force, so that the protective door 103 can be opened with less force. A handle 104 is installed on the protective door 103, which is convenient for driving the protective door 103 to open by the handle 104. A plurality of support legs 105 for support are provided on the bottom surface of the box body 1, and the support legs 105 are all fixedly mounted on the frame 101.

[0046] refer to Figure 2 、 Figure 5 and Figure 6 , a horizontally placed support plate 2 is provided at the lower end of the interior of the box body 1, and the support plate 2 is fixedly mounted on the frame 101 by screws, and a plurality of rectangular placement positions 210 are provided on the support plate 2, and the plurality of placement positions 210 are evenly distributed in a matrix, and two circular positioning pins 211 are fixedly installed in the middle of the placement positions 210, and a circular magnetic block 212 is embedded between the two positioning pins 211 of the same placement position 210, and the magnetic blocks 212 are fixed to the support plate 2 by screws, and the placement positions 210 are used to place trays 220, which are all rectangular block structures, and a plurality of placement holes 221 evenly distributed in a matrix are opened on the first surface (top surface) of the tray 220, for placing The hole 221 is used to place the liquid storage bottle 230. The first positioning hole 222 and the second positioning hole 223 are respectively opened on the second surface (bottom surface) of the tray 220 at the positions corresponding to the two positioning pins 211. The first positioning hole 222 and the second positioning hole 223 are respectively mounted on the two positioning pins 211 corresponding to the placement position 210, so as to position the tray. A magnetic block is embedded in the middle of the first positioning hole 222 and the second positioning hole 223 on the second surface (bottom surface) of the tray 220. When the tray is placed on the placement position 210, the magnetic block will be magnetically adsorbed together with the magnetic block 212, thereby preventing the tray 220 from displacing itself during use.

[0047] It should be noted that the liquid storage bottle 230 includes a bottle body and a bottle cap. The outer sides of the bottle body and the bottle cap are both cylindrical structures, and the bottle body and the bottle cap are tightened by threads.

[0048] refer to Figure 6The first positioning hole 222 is circular, and the first positioning hole 222 and the corresponding positioning pin 211 are in transition fit, the second positioning hole 223 is waist-shaped, and the two opposite surfaces of the second positioning hole 223 are in transition fit with the corresponding positioning pin 211. Specifically, the second surface of the tray 220 is in plane contact with the placement position, which can limit the three degrees of freedom of the tray 220, namely, one up and down movement and two rotational degrees of freedom. The cooperation between the positioning pin 211 and the first positioning hole 222 can limit the two lateral movement degrees of freedom of the tray 220, and the cooperation between the positioning pin 211 and the second positioning hole 223 can limit one rotational degree of freedom of the tray 220, that is, through the plane contact between the second surface of the tray 220 and the placement position, the cooperation between the positioning pin 211 and the first positioning hole 222, and the cooperation between the positioning pin 211 and the second positioning hole 223, the six degrees of freedom of the tray can be just limited, thereby ensuring the position accuracy between the tray 220 and the placement position.

[0049] refer to Figure 2 、 Figure 3 and Figure 4 , the interior of the box 1 is located above the bottom plate and a moving assembly 3 is set. The moving assembly 3 includes an X-axis driving assembly 310, a Y-axis driving assembly 320, a first Z-axis driving assembly 330 and a second Z-axis driving assembly 340, wherein the X-axis driving assembly 310 and the Y-axis driving assembly 320 are both horizontal moving axes, and the X-axis driving assembly 310 and the Y-axis driving assembly 320 are perpendicular to each other, and both ends of the X-axis driving assembly 310 are fixedly mounted on the frame 101 by screws, and the first end of the Y-axis driving assembly 320 is slidably mounted on the X-axis driving assembly 310, and the first Z-axis driving assembly 330 and the second Z-axis driving assembly 340 are vertical moving axes, that is, the first Z-axis driving assembly 330 and The second Z-axis drive assembly 340 is perpendicular to the X-axis drive assembly 310 and the Y-axis drive assembly 320, and the first Z-axis drive assembly 330 and the second Z-axis drive assembly 340 are slidably installed on the Y-axis drive assembly 320; wherein the X-axis drive assembly 310 is used to drive the Y-axis drive assembly 320 to move back and forth along the direction of the X-axis drive assembly 310, and the Y-axis drive assembly 320 is used to drive the first Z-axis drive assembly 330 and the second Z-axis drive assembly 340 to move back and forth along the direction of the Y-axis drive assembly 320, and the first Z-axis drive assembly 330 and the second Z-axis drive assembly 340 are respectively used to drive the components installed on the first Z-axis drive assembly 330 and / or the second Z-axis drive assembly 340 to move up and down.

[0050] It should be noted that the specific structures and driving methods of the X-axis drive assembly 310, the Y-axis drive assembly 320, the first Z-axis drive assembly 330 and the second Z-axis drive assembly 340 are existing technologies, and specific reference can be made to the moving axis structures of existing CNC milling machines or CNC engraving machines and other equipment.

[0051] refer to Figure 4 An auxiliary shaft structure 350 is provided at the second end of the Y-axis drive assembly 320. The auxiliary shaft structure 350 includes an auxiliary guide rail 351. The auxiliary guide rail 351 is arranged parallel to the X-axis drive assembly 310. Both ends of the auxiliary guide rail 351 are respectively fixedly mounted on the frame 101. An auxiliary slider 352 is slidably mounted on the auxiliary guide rail 351. The auxiliary slider 352 is fixedly connected to the second end of the Y-axis drive assembly 320 by a connecting rod 353. When the X-axis drive assembly 310 drives the Y-axis drive assembly 320 to move, the auxiliary slider 352 will move along the auxiliary guide rail 351. The auxiliary shaft structure 350 is used to assist the movement of the Y-axis drive assembly 320. At the same time, it bears part of the weight of the Y-axis drive assembly 320, making the structure of the device more stable.

[0052] refer to Figure 12 Specifically, the auxiliary slider 352 includes a first connecting block 3521, a second connecting block 3522, and a third connecting block 3523, wherein the first connecting block 3521 is slidably mounted on the auxiliary guide rail 351, the second connecting block 3522 is fixedly connected to the connecting rod 353, the third connecting block 3523 is located between the first connecting block 3521 and the second connecting block 3522, and the third connecting block 3523 is fixedly connected to the first connecting block 3521 by screws, and the second connecting block 3522 is opened toward one side of the third connecting block 3523. A receiving groove 3524 is provided, and two cylindrical elastic blocks 3525 are provided in the receiving groove 3524. The elastic blocks 3525 are elastic and made of flexible material. The second connecting block 3522 and the third connecting block 3523 are fixedly connected to the corresponding elastic blocks 3525 by two connecting screws 3526, so that the second connecting block 3522 and the third connecting block 3523 are connected through the elastic blocks 3525. The elasticity of the elastic blocks 3525 themselves can enable the second end of the Y-axis drive assembly 320 to play a self-adjusting role.

[0053] refer to Figure 2 and Figure 9The first Z-axis driving assembly 330 is equipped with a liquid taking assembly 4, and the first Z-axis driving assembly 330 can drive the liquid taking assembly 4 to move up and down along the first Z-axis driving assembly 330. The liquid taking assembly 4 includes a plunger pump 410, and the plunger pump 410 includes a block-shaped plunger pump body 411. Four plunger cavities equidistantly distributed along a straight line are provided in the plunger pump body 411. Plunger 412 is sealed and slidably provided in the plunger cavity. A first motor 420 is provided at one end of the four plungers 412. A mounting plate 421 is provided between the first motor 420 and the plunger pump body 411. The upper and lower ends of the mounting plate 421 are respectively fixedly connected to the first motor 420 and the plunger by screws. The pump body 411 and the mounting plate 421 are fixedly mounted on the slider of the first Z-axis drive assembly 330 by screws. A driving block 422 is slidingly provided on the mounting plate 421. The protruding ends of the four plungers 412 are connected to the driving block 422. The driving block 422 is threadedly connected to the output shaft of the first motor 420. When the output shaft of the first motor 420 rotates forward, the driving block 422 moves toward the direction of the first motor 420 under the action of the thread. When the output shaft of the first motor 420 reverses, the driving block 422 moves toward the direction of the plunger pump body 411 under the action of the thread. The moving driving block 422 can drive the plunger 412 to move in the plunger cavity.

[0054] refer to Figure 9 , a first buffer assembly is provided at one end of the plunger pump body 411 away from the plunger 412, and the first buffer assembly includes a first buffer block 430. The shape and size of the first buffer block 430 are the same as those of the plunger pump body 411, so that the structure of the liquid taking component 4 is more uniform and beautiful. Four buffer cavities are provided on the end surface of the first buffer block 430 away from the plunger pump body 411, and a cylindrical liquid storage cavity 431 is slidably installed in the buffer cavity. A needle tube 432 is installed at one end extending from the liquid storage cavity 431, and a first spring 433 is provided between the bottom surface of the buffer cavity and the liquid storage cavity 431. The two ends of the first spring 433 respectively rest on the bottom surface of the buffer cavity and the liquid storage cavity 431. When the needle tube 432 is subjected to force, the liquid storage cavity 431 can compress the first spring 433 to slide into the buffer cavity. , thereby protecting the needle tube 432. The side surfaces of the first buffer block 430 are provided with long strip-shaped through grooves 434 corresponding to the buffer cavities. The through grooves 434 are distributed along the axial direction of the liquid storage cavity 431. A flexible tube 435 is provided through the through grooves 434. One end of the flexible tube 435 is connected to the corresponding liquid storage cavity 431, and the other end of the flexible tube 435 is connected to the corresponding plunger cavity. When the plunger moves, positive pressure or negative pressure can be generated inside the liquid storage cavity 431 through the flexible tube 435, so that the liquid storage cavity 431 can absorb or discharge liquid through the needle tube 432. The setting of the through grooves 434 enables the flexible tube 435 to slide in the through grooves 434 when the liquid storage cavity 431 slides in the buffer cavity, and avoids interference between the flexible tube 435 and the through grooves 434.

[0055] refer to Figure 2 and Figure 10 , a grabbing assembly 5 is installed on the second Z-axis driving assembly 340, and the second Z-axis driving assembly 340 can drive the grabbing assembly 5 to move up and down along the second Z-axis driving assembly. The grabbing assembly 5 includes a clamping claw body 510, and two first clamping claws 511 are slidingly set at the lower end of the clamping claw body 510. Two cylindrical grabbing rods 512 are respectively set at one end away from the clamping claw body 510 of the two first clamping claws 511. The four grabbing rods 512 are all vertically arranged, and the upper ends of the grabbing rods 512 are respectively fixedly mounted on the corresponding first clamping claws 511. The sides of the grabbing rods 512 are all provided with anti-slip grooves, which can increase the grip between the grasped objects. Friction force, a second motor 513 is provided at one end of the clamping jaw body 510 away from the two first clamping jaws 511, and a transmission component (existing technology) is provided inside the clamping jaw body 510, which is respectively connected to the second motor 513 and the two first clamping jaws 511, so that the second motor 513 can drive the two first clamping jaws 511 to move closer or apart through the transmission component, thereby driving the grasping rod 512 to move closer or apart, that is, to achieve grasping of the object, and a first position sensor 514 is installed on the side of the clamping jaw body 510, which can sense the position of the first clamping jaw 511 in real time, thereby facilitating and accurately controlling the movement of the first clamping jaw 511.

[0056] refer to Figure 10 and Figure 11 A second buffer assembly is provided between the grab assembly 5 and the second Z axis 340. The second buffer assembly includes a second buffer block 520. One end of the second buffer block 520 is fixedly connected to the clamping claw body 510 by a screw. A mounting block 521 is provided at the other end of the second buffer block 520. The mounting block 521 is fixedly mounted on the slider of the second Z axis driving assembly 340 by a screw. A plurality of vertically distributed buffer holes 522 are provided inside the second buffer block 520. A buffer bolt 523 is provided in the buffer hole 522. The upper end of the buffer bolt 523 is fixedly mounted on the slider of the second Z axis driving assembly 340. The buffer hole 522 is extended and threadedly connected to the mounting block 521. A second spring 524 is installed on the outside of the buffer bolt 523 in the buffer hole 522. The upper end of the second spring 524 is fixedly connected to the step on the inner wall of the corresponding buffer hole 522. The lower end of the second spring 524 is fixedly connected to the lower end of the corresponding buffer bolt 523. The second spring 524 pulls the buffer bolt 523 and the second buffer block 520, so that the second buffer assembly can buffer the grabbing assembly 5 to prevent the grabbing rod 512 from being damaged after being subjected to force.

[0057] refer to Figure 5A cover opening assembly 6, a cover throwing assembly 7 and an electric lock 8 are also provided on the support plate 2 at a position avoiding the placement position 210, wherein the cover opening assembly 6 is used to open the bottle cap of the liquid storage bottle 230 by rotation, the cover throwing assembly 7 is used to remove and collect the bottle cap adhered to the grasping assembly 5, and the electric lock 8 is used to lock the protective door 103.

[0058] refer to Figure 2 Specifically, the electric lock 8 is arranged at a corner near the protective door 103, and a U-shaped door connecting piece 1031 is arranged on the outside of the vertical profile of the frame 101 near the electric lock 8. The door connecting piece 1031 is movably connected to the frame 101, and one end of the door connecting piece 1031 is fixedly connected to the protective door 103 by a screw. A bayonet is provided on the door connecting piece 1031, and the electric lock 8 can be stuck in the bayonet of the door connecting piece 1031, thereby preventing the protective door from opening by itself.

[0059] refer to Figure 2 A magnetic sensor 810 is also provided on the electric lock 8, and a magnetic sheet is fixedly installed on the door connecting piece 1031 at a position corresponding to the magnetic sensor 810. The magnetic sensor 810 can sense the position of the door connecting piece 1031 through the magnetic sheet to determine whether the protective door is open.

[0060] refer to Figure 5 and Figure 8 The cover opening assembly 6 includes a transmission 610, which is fixedly mounted on the support plate 2 by screws. An electric clamp 620 is rotatably mounted on the transmission 610, and two second clamps 621 are provided above the electric clamp 620. The electric clamp 620 can control the approach and separation of the two second clamps 621. The opposite surfaces of the two second clamps 621 are set into a V-shaped structure, and a V-shaped flexible block 622 is fixedly mounted on the V-shaped structure, which can prevent the second clamps 621 from clamping the clamped object and also increase the friction between the clamped object and the clamped object. A second position sensor 623 is provided on the electric clamp 620, which can sense the position of the second clamp 621 in real time, thereby facilitating and accurately controlling the movement of the second clamp 621. A third motor 630 is also installed on the side of the electric clamp 620 on the transmission 610. The third motor 630 can drive the electric clamp 620 to rotate through the transmission 610.

[0061] refer to Figure 5 and Figure 7The cap throwing assembly 7 includes a horizontally arranged supporting plate 710, the supporting plate 710 is located above the supporting plate 2, a vertical supporting rod 711 is arranged between the supporting plate 710 and the supporting plate 2, the lower end of the supporting rod 711 is fixedly mounted on the supporting plate 2 by screws, and the upper end of the supporting rod 711 is fixedly connected to the supporting plate 710 by screws, a horizontally arranged stop pin 720 is fixedly mounted on the supporting plate 710, and an optical sensor 730 is also installed on the supporting plate 710 near the stop pin 720. The optical sensor 730 is used to detect the position of the bottle cap. A barrel-shaped container 740 is provided on the support plate 2 near the support rod 711. The container 740 is located below the stop needle 720. When the grabbing assembly grabs the bottle cap and moves to the top of the container 740, the bottle cap is moved below the stop needle 720, that is, the stop needle 720 is located between the grabbing rod 512 and the bottle cap, and then the grabbing rod 512 is separated to both sides, that is, the bottle cap is released, and the grabbing assembly is moved upward at the same time. At this time, the bottle cap will fall into the container under the action of gravity or the movement of the stop needle, which can prevent the bottle cap from adhering to the grabbing rod due to static electricity and other reasons.

[0062] refer to Figure 1 、 Figure 2 and Figure 3 A control box 9 is also provided in the box body 1, and a control circuit and components are provided in the control box 9. The above-mentioned moving component 3, liquid collection component 4, grabbing component 5, cover opening component 6, cover throwing component 7 and electric lock 8 are all electrically connected to the control box 9. The control box 9 controls the operation of the above-mentioned components through a program. A human-computer interaction device 10 is provided on the outside of the box body 1. The human-computer interaction device 10 is installed on the box body 1 through a mounting part. The human-computer interaction device 10 and the mounting part avoid the movement trajectory of the protective door 103 to avoid interference with the protective door 103. The human-computer interaction device 10 is electrically connected to the control box 9, and the user can control the operation of the device through the human-computer interaction device 10.

[0063] In summary, when the device is used, it mainly includes two parts: opening the liquid storage bottle cover and liquid transfer, as follows:

[0064] First, the electric lock 8 is unlocked through the human-computer interaction device 10, and the protective door 103 is opened upward through the handle 104. A plurality of trays 220 filled with liquid storage bottles 230 are placed on the respective placement positions 210. Then, the protective door 103 is closed and the liquid replacement procedure is started through the human-computer interaction device 10.

[0065] Opening the liquid storage bottle 230: Under the control of the program, first, the X-axis drive assembly 310 and the Y-axis drive assembly 320 will drive the grabbing assembly 5 to move above one of the liquid storage bottles 230, and the second Z-axis drive assembly 340 will drive the grabbing assembly 5 downward to approach the liquid storage bottle 230, so that the grabbing assembly 5 is clamped on the bottle cap of the liquid storage bottle 230 through the grabbing rod 512, and then, the moving assembly 3 will drive the grabbed liquid storage bottle 230 to the opening assembly 6, and the opening assembly 6 will clamp the bottle body of the liquid storage bottle 230 through the electric clamp 620, and then, the third motor 630 will drive the electric clamp The claw 620 rotates to make the bottle body and the bottle cap rotate relative to each other, thereby completing the opening of the liquid storage bottle 230. Then, the moving component 3 will drive the bottle cap to the cap throwing component 7 through the grabbing component 5 and drop the bottle cap into the container 740. Then, the moving component 3 will return to the cap opening component 6 again and make the grabbing component 5 grab the bottle body of the opened liquid storage bottle 230. Finally, the moving component 3 will re-place the opened bottle body of the liquid storage bottle 230 into the initial placement hole 221 of the initial tray 220. By repeating the above process, the bottle caps of multiple liquid storage bottles 230 can be opened, and liquid transfer can be carried out.

[0066] Liquid transfer: Under the control of the program, first, the X-axis drive assembly 310 and the Y-axis drive assembly 320 will drive the liquid collection assembly 4 to move above a row of four liquid storage bottles 230 with their lids opened. The first Z-axis drive assembly 330 will drive the liquid collection assembly 4 downward to approach the liquid storage bottle 230, and extend the needle tube 432 into the corresponding liquid storage bottle 230. Under the action of the plunger 412 and the pump 410, the liquid is sucked into the corresponding liquid storage cavity 431. Then, the moving assembly 3 will drive the liquid collection assembly 4 to move above another empty liquid storage bottle 230, and extend the needle tube 432 into the corresponding liquid storage bottle 230. Under the action of the plunger 412 and the pump 410, the liquid is injected into the corresponding liquid storage cavity 431, thereby completing the liquid transfer.

[0067] The technical solution of the present application is to set a moving component, a liquid collection component, a grabbing component and a lid opening component inside the box body, so that the cooperation between the grabbing component and the moving component can drive the liquid storage bottle to move inside the box body, and the bottle body and the bottle cap of the liquid storage bottle can be twisted through the cooperation between the grabbing component and the lid opening component, thereby completing the opening action of the liquid storage bottle, and the liquid collection component can extract the liquid in the opened liquid storage bottle, and the use of the liquid collection component in conjunction with the moving component can enable the extracted liquid to be transferred to other liquid storage bottles; through the mutual cooperation of the above structures, the present device can automatically realize the opening of the liquid storage bottle and the transfer of liquid, thereby improving the working efficiency of liquid transfer, reducing the possibility of manual operation errors, and also avoiding human damage caused by the volatilization of toxic liquids.

[0068] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A fully automatic liquid transfer device for laboratory use, characterized in that: include: A box body is provided with multiple placement positions inside the box body, the placement positions are used to place and position the tray, the tray is used to place the liquid storage bottle, and the box body is also provided with a moving component, a liquid collection component, a grabbing component, a cover opening component and a control box, the liquid collection component and the grabbing component are installed on the moving component, the moving component is used to drive the liquid collection component and / or the grabbing component to move, the grabbing component is used to carry the liquid storage bottle, the cover opening component is used to open the bottle cap of the liquid storage bottle, the liquid collection component is used to extract or discharge the liquid in the liquid storage bottle, and the control box is used to control the operation of the moving component, the liquid collection component, the grabbing component and the cover opening component.

2. The fully automatic liquid transfer device for laboratory use according to claim 1, characterized in that: The liquid extraction component includes a plunger pump and a liquid storage cavity. A first buffer component is arranged between the plunger pump and the liquid storage cavity. A needle tube is installed at one end of the liquid storage cavity away from the plunger pump. The liquid storage cavity and the plunger pump are connected by a flexible tube. The first buffer component is used to buffer the impact force exerted on the needle tube.

3. The fully automatic liquid transfer device for laboratory use according to claim 2, characterized in that: The first buffer assembly includes a first buffer block, which is fixedly mounted on the plunger pump. A buffer cavity is provided on the end surface of the first buffer block corresponding to the liquid storage cavity. The liquid storage cavity is slidably mounted in the buffer cavity. A first spring is arranged between the bottom surface of the buffer cavity and the liquid storage cavity. The two ends of the first spring respectively rest against the bottom surface of the buffer cavity and the liquid storage cavity.

4. The fully automatic liquid transfer device for laboratory use according to claim 2, characterized in that: The plunger pump includes a plunger pump body, a plurality of plunger cavities are provided in the plunger pump body, plungers are sealed and slidably provided in the plunger cavities, a first motor is provided at one end of the plurality of plungers extending out, a mounting plate is provided between the first motor and the plunger pump body, the two ends of the mounting plate are respectively fixedly connected to the first motor and the plunger pump body, a drive block is slidably provided on the mounting plate, the ends of the plurality of plungers extending out are all connected to the drive block, and the drive block is threadedly connected to the output shaft of the first motor.

5. The fully automatic liquid transfer device for laboratory use according to claim 1, characterized in that: The moving assembly is located above the placement position, and the moving assembly includes an X-axis drive assembly, a Y-axis drive assembly, and a Z-axis drive assembly. The Z-axis drive assembly includes a first Z-axis drive assembly and a second Z-axis drive assembly. The X-axis drive assembly is fixedly installed inside the box, the first end of the Y-axis drive assembly is installed on the drive member of the X-axis drive assembly, the Z-axis drive assembly is installed on the drive member of the Y-axis drive assembly, the liquid collection assembly is installed on the drive member of the first Z-axis drive assembly, and the grabbing assembly is installed on the drive member of the second Z-axis drive assembly.

6. The fully automatic liquid transfer device for laboratory use according to claim 5, characterized in that: An auxiliary axis structure is provided at the second end of the Y-axis drive assembly, and the auxiliary axis structure includes an auxiliary guide rail. The auxiliary guide rail is arranged parallel to the X-axis drive assembly, and both ends of the auxiliary guide rail are respectively fixedly mounted on the inner wall of the box. An auxiliary slider is slidably mounted on the auxiliary guide rail, and the auxiliary slider is fixedly connected to the second end of the Y-axis drive assembly through a connecting rod.

7. The fully automatic liquid transfer device for laboratory use according to claim 6, characterized in that: The auxiliary slider includes a first connecting block, a second connecting block, and a third connecting block. The first connecting block is slidably mounted on the auxiliary guide rail, the second connecting block is fixedly connected to the connecting rod, the third connecting block is located between the first connecting block and the second connecting block, and the third connecting block is fixedly connected to the first connecting block. The second connecting block has an accommodating groove on one side facing the third connecting block, an elastic block is arranged in the accommodating groove, and the second connecting block and the third connecting block are both fixedly connected to the corresponding elastic block by connecting screws.

8. The fully automatic liquid transfer device for laboratory use according to claim 5, characterized in that: The gripping assembly includes a clamping body, a plurality of first clamping jaws are slidingly provided on the first end of the clamping body, a plurality of gripping rods are respectively provided on the ends of the plurality of first clamping jaws away from the clamping body, a second motor is also provided on the clamping body, a transmission assembly is provided in the clamping body, and the second motor is used to drive the plurality of first clamping jaws to move closer or apart through the transmission assembly.

9. The fully automatic liquid transfer device for laboratory use according to claim 8, characterized in that: A second buffer assembly is arranged between the grab assembly and the second Z-axis drive assembly, and the second buffer assembly includes a second buffer block, one end of the second buffer block is connected to the clamping claw body, and a mounting block is arranged at the other end of the second buffer block, and the mounting block is installed on the slider of the second Z-axis drive assembly. A plurality of buffer holes are provided inside the second buffer block, and a buffer bolt is provided in the buffer hole. One end of the buffer bolt extends out of the buffer hole and is connected to the mounting block, and a second spring is sleeved on the outside of the buffer bolt, one end of the second spring is fixedly connected to the inner wall of the buffer hole, and the other end of the second spring is fixedly connected to the end of the buffer bolt away from the mounting block, and the second spring has a pulling effect on the buffer bolt and the second buffer block.

10. The fully automatic liquid transfer device for laboratory use according to claim 1, characterized in that: The cover opening assembly includes a transmission, which is installed in the box body. An electric clamp is rotatably installed on the transmission. A plurality of second clamps are arranged above the electric clamp. The electric clamp is used to drive the plurality of second clamps to approach and separate. The relative surfaces of the plurality of second clamps are all arranged in a V-shaped structure, and a V-shaped flexible block is installed at the V-shaped structure. A third motor is also installed on the side of the electric clamp on the transmission, and the third motor can drive the electric clamp to rotate through the transmission.

11. The fully automatic liquid transfer device for laboratory use according to claim 1, wherein: A support plate is provided in the box body, the placement position is provided on the support plate, a positioning pin and a magnetic block are provided in the middle of the placement position, a plurality of placement holes are provided on the first surface of the tray, the placement holes are used to place the liquid storage bottles, positioning holes are provided on the second surface of the tray at positions corresponding to the positioning pins, and a magnetic block is provided on the second surface of the tray at positions corresponding to the magnetic blocks.

12. The fully automatic liquid transfer device for laboratory use according to claim 11, characterized in that: A flip-cap assembly is also provided in the box body, and the flip-cap assembly includes a carrying plate, which is located above the support plate, and a support rod is provided between the carrying plate and the support plate, one end of the support rod is fixedly mounted on the support plate, and the other end of the support rod is fixedly connected to the carrying plate, and a stop needle is fixedly mounted on the carrying plate, and an optical sensor is installed on the carrying plate near the stop needle, and the optical sensor is used to detect the position of the bottle cap, and a container is provided on the support plate near the support rod, and the container is located below the stop needle.

13. The fully automatic liquid transfer device for laboratory use according to claim 1, wherein: The box body includes a frame, which is a square structure composed of multiple profiles combined by screws and a snap-on structure. A shell is provided on the outside of the frame, and the shell is a box-shaped structure formed by multiple plates fixed to the frame by screws. One side of the box body is open, and a protective door is provided on one side of the box body opening, and the protective door is installed on the frame through a sliding structure.

14. The fully automatic liquid transfer device for laboratory use according to claim 13, wherein: The sliding structure includes a plurality of I-shaped sliders, which are slidably mounted on two vertical profiles on the frame. The protective door is fixedly connected to the plurality of I-shaped sliders by screws. A coiled spring structure is provided between the protective door and the frame, and the coiled spring structure is fixedly mounted above the frame. The coiled spring structure is connected to the protective door through a connecting belt. The coiled spring structure is used to balance the weight of the protective door through elastic force. A handle is installed on the protective door.

15. The fully automatic liquid transfer device for laboratory use according to claim 14, characterized in that: An electric lock is provided at a corner of the box body near the protective door, and a door connecting piece is provided on the outside of the vertical profile on the frame near the electric lock. The door connecting piece is fixedly connected to the protective door, and a bayonet is provided on the door connecting piece, which is used to engage with the electric lock.

16. The fully automatic liquid transfer device for laboratory use according to claim 15, characterized in that: The electric lock is also provided with a magnetic sensor, and a magnetic sheet is fixedly installed on the door connecting piece at a position corresponding to the magnetic sensor, and the magnetic sensor is used to sense the magnetic sheet.

Images