Pipetting workstation with detachable pipetting needle

Abstract

The utility model relates to the technical field of pipetting work stations, and discloses a pipetting work station with a detachable pipetting needle, which comprises a pipetting work station, the top and the bottom of the right side of the pipetting work station are respectively provided with a pipetting needle dismounting mechanism, the surface of the pipetting work station is provided with a pipetting mechanism, the bottom of the pipetting work station is fixedly connected with a support column, and the support column is fixedly connected with the pipetting needle. A test tube rack is arranged at the bottom of the pipetting work station, a test tube is inserted into the test tube rack, a pipetting needle is clamped through a first clamping frame and a second clamping frame, the pipetting needle can be taken down from the device by lifting a control device, and at the moment, a valve is opened to convey steam generated by a steam generator into a steam disinfection tank for disinfection. Therefore, the pipetting needle can be recycled, the whole mechanism is convenient to operate, and rapid disassembly and assembly can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid transfer workstations, in particular to a liquid transfer workstation with a detachable liquid transfer needle. Background Art

[0002] A pipetting workstation is an experimental tool used in biology, medicine, pharmacy, chemistry, engineering and other fields. It is mainly used to handle and distribute trace amounts of liquid. This workstation is highly precise and programmable, and can quickly and accurately complete various liquid handling tasks, such as DNA or RNA purification, sample or reagent packaging and transfer. The main function of a pipetting workstation is to accurately transfer a specific volume of liquid from one container to another to achieve the purpose of the experiment.

[0003] According to a pipetting workstation disclosed on the patent website (authorization announcement number: CN211905384U), "The utility model discloses a pipetting workstation, which mainly includes a chassis, a camera is installed on both sides of the chassis, and the camera signal is connected to a control panel for transmitting the captured image information to the control panel; a pipette is installed inside the chassis, and the pipette signal is connected to the control panel, and the control panel controls the pipette to perform pipetting inside the chassis; a washing liquid bottle and a waste liquid bottle are arranged on the outside of the chassis; the washing liquid bottle and the waste liquid bottle are both extended into the chassis through pipes; the utility model is an automated Western blot experiment antibody incubation and membrane washing equipment, and a camera is installed on the upper left and right sides of the chassis to record all actions inside the instrument. The pipetting arm of the pipette performs all pipetting and liquid addition processes under program control."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The pipetting workstation mainly includes a chassis, a camera is installed on both sides of the chassis, and the camera signal is connected to a control panel. The pipetting workstation needs to replace the pipetting needle inside the workstation after long-term use to ensure that the workstation can continue to work, but the device cannot replace the pipetting needle quickly and easily. At the same time, manual operation by the staff when changing the needle may contaminate the needle, resulting in poor pipetting effect in the later stage. Utility Model Content

[0006] The purpose of the utility model is to provide a liquid transfer workstation with a detachable liquid transfer needle, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipetting workstation with a detachable pipetting needle, comprising a pipetting workstation, a pipetting needle disassembly mechanism is arranged at the top and bottom of the right side of the pipetting workstation, and a pipetting mechanism is arranged on the surface of the pipetting workstation;

[0008] The pipette needle disassembly and assembly mechanism includes a disinfection box, which is fixedly connected to the right side of the top of the pipetting workstation, a steam disinfection tank is provided inside the disinfection box, a fixed plate 1 is fixedly connected to the left end of the top of the disinfection box, a clamping frame 1 is fixedly connected to the right side of the fixed plate 1, a fixed plate 2 is fixedly connected to the right side of the top of the disinfection box, a pneumatic telescopic column is fixedly connected to the left side of the fixed plate 2, a clamping frame 2 is fixedly connected to the left side of the pneumatic telescopic column, a small cylinder is provided on the right side of the fixed plate 2, a pipette needle transport rack is provided on the top of the steam disinfection tank, a steam generator is fixedly connected to the right side of the bottom of the pipetting workstation, and the steam generator A steam pipe is fixedly connected to the right side, and a valve is arranged on the surface of the steam pipe. When the pipette needle needs to be replaced, the pipette needle is moved to the clamping top of the pipette needle disassembly and assembly mechanism through the device, and the pipette needle is controlled to descend until the pipette needle is placed inside the pipette needle transport rack. The small cylinder is started to control the clamping and movement of the clamping frame 2 and the pneumatic telescopic column, and the pipette needle is clamped by the clamping frame 1 and the clamping frame 2. The control device is raised to remove the pipette needle from the device. At this time, the valve is opened to transport the steam generated by the steam generator to the steam sterilization tank for disinfection, thereby ensuring that the pipette needle can be recycled. The overall operation of the mechanism is convenient, and quick disassembly and assembly can be achieved.

[0009] Preferably, the pneumatic telescopic column is fixedly connected to the left side of the small cylinder, the pneumatic telescopic column passes through the two surfaces of the fixed plate, and three groups of the pneumatic telescopic column and the small cylinder are provided.

[0010] Preferably, the end of the top of the steam pipe away from the steam generator is arranged at the bottom of the steam sterilization tank, and the end of the steam pipe away from the steam generator passes through the right side of the sterilization box.

[0011] Preferably, the pipetting mechanism includes a transport trough, the transport trough is opened at the front and rear ends of the top of the pipetting workstation, the left and right ends of the bottom of the transport trough are fixedly connected with a fixing seat, the inner side of the fixing seat is fixedly connected with a first electric slide rail, the surface of the first electric slide rail is slidably connected with a slider 1, the top of the slider 1 is fixedly connected with a retractable pipetting rack, the inner top of the retractable pipetting rack is fixedly connected with a second electric slide rail, the surface of the second electric slide rail is slidably connected with a slider 2, the left side of the slider 2 is fixedly connected with a control box, the bottom of the control box is fixedly connected with a telescopic column, the bottom of the telescopic column is fixedly connected with a connecting plate, a detachable mounting seat is installed at the bottom of the connecting plate, the bottom of the detachable mounting seat is provided with a mounting groove, and a pipetting needle is inserted into the mounting groove. The arrangement of this mechanism can enable the pipetting needle to move in multiple directions, and the pipetting needle can be quickly moved to a required position in accordance with work needs so that work can be carried out smoothly. This mechanism makes the device more efficient as a whole.

[0012] Preferably, the retractable liquid transfer rack runs through the interior of the transport trough, the transport trough, the first electric slide rail and the slide block are provided in two groups, and the connecting plate and the detachable mounting seat are connected together by bolts.

[0013] Preferably, a support is fixedly connected to the bottom of the pipetting workstation, a test tube rack is arranged at the bottom of the pipetting workstation, and a test tube is inserted into the test tube rack.

[0014] Compared with the prior art, the utility model provides a pipetting workstation with a detachable pipetting needle, which has the following beneficial effects:

[0015] The pipetting workstation with a detachable pipetting needle is provided with a pipetting needle disassembly and assembly mechanism. When the pipetting needle needs to be replaced, the pipetting needle is moved to the top of the pipetting needle disassembly and assembly mechanism through the device, and the pipetting needle is controlled to descend until the pipetting needle is placed inside the pipetting needle transport rack. The small cylinder is started to control the movement of the clamping frame two and the pneumatic telescopic column, and the pipetting needle is clamped by the clamping frames one and two. The control device is raised to remove the pipetting needle from the device. At this time, the valve is opened to transport the steam generated by the steam generator to the steam sterilization tank for disinfection, thereby ensuring that the pipetting needle can be recycled. The overall operation of the mechanism is convenient and can be quickly disassembled and assembled.

[0016] The pipetting workstation with a detachable pipetting needle is provided with a pipetting mechanism, which can enable the pipetting needle to move in multiple directions, and quickly move the pipetting needle to a required position according to work requirements so that the work can proceed smoothly. The mechanism makes the device more efficient as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the test tube rack structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of the pipette needle structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the steam sterilizing tank structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the liquid transfer mechanism of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the pipette needle of the utility model.

[0024] In the figure: 1. pipetting workstation; 2. support; 3. test tube rack; 4. test tube; 5. pipetting needle disassembly and assembly mechanism; 51. disinfection box; 52. steam disinfection tank; 53. fixed plate one; 54. clamping frame one; 55. fixed plate two; 56. pneumatic telescopic column; 57. clamping frame two; 58. small cylinder; 59. pipetting needle transport rack; 501. steam generator; 502. steam pipe; 503. valve; 6. pipetting mechanism; 61. transport tank; 62. fixed seat; 63. first electric slide rail; 631. slider one; 64. telescopic pipetting rack; 65. second electric slide rail; 66. slider two; 67. control box; 68. telescopic column; 69. connecting plate; 601. detachable mounting seat; 602. mounting tank; 603. pipetting needle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] For example, see Figure 1-4 A pipetting workstation with a detachable pipetting needle comprises a pipetting workstation 1, a pipetting needle disassembly mechanism 5 is arranged at the top and bottom of the right side of the pipetting workstation 1, and a pipetting mechanism 6 is arranged on the surface of the pipetting workstation 1;

[0029] The pipette needle disassembly and assembly mechanism 5 includes a disinfection box 51, which is fixedly connected to the right side of the top of the pipetting workstation 1. A steam disinfection tank 52 is provided inside the disinfection box 51. A fixed plate 1 53 is fixedly connected to the left end of the top of the disinfection box 51, and a clamping frame 1 54 is fixedly connected to the right side of the fixed plate 1 53. A fixed plate 2 55 is fixedly connected to the right side of the top of the disinfection box 51, and a pneumatic telescopic column 56 is fixedly connected to the left side of the fixed plate 2 55. A clamping frame 2 57 is fixedly connected to the left side of the pneumatic telescopic column 56. A small cylinder 58 is provided on the right side of the fixed plate 2 55. A pipette needle transport rack 59 is provided on the top of the steam disinfection tank 52. A steam generator 501 is fixedly connected to the right side of the bottom of the pipetting workstation 1, and a steam pipe 50 is fixedly connected to the right side of the steam generator 501. 2. A valve 503 is provided on the surface of the steam pipe 502. When the pipetting needle 603 needs to be replaced, the pipetting needle 603 is moved to the top of the pipetting needle disassembly and assembly mechanism 5 through the device, and the pipetting needle 603 is controlled to descend until the pipetting needle 603 is placed inside the pipetting needle transport frame 59. The small cylinder 58 is started to control the movement of the clamping frame 2 57 and the pneumatic telescopic column 56. The pipetting needle 603 is clamped by the clamping frame 1 54 and the clamping frame 2 57. The control device is raised to remove the pipetting needle 603 from the device. At this time, the valve 503 is opened to transport the steam generated by the steam generator 501 to the steam sterilization tank 52 for disinfection, thereby ensuring that the pipetting needle 603 can be recycled. The overall operation of the mechanism is convenient and can achieve rapid disassembly and assembly.

[0030] The pneumatic telescopic column 56 is fixedly connected to the left side of the small cylinder 58. The pneumatic telescopic column 56 penetrates the surface of the second fixed plate 55. There are three groups of pneumatic telescopic columns 56 and small cylinders 58.

[0031] One end of the top of the steam pipe 502 away from the steam generator 501 is arranged at the bottom of the steam sterilizing tank 52 , and one end of the steam pipe 502 away from the steam generator 501 passes through the right side of the sterilizing box 51 .

[0032] For example 2, please refer to Figure 1-6 On the basis of the first embodiment, the liquid transfer mechanism 6 further comprises a transport trough 61, the transport trough 61 is provided at the front and rear ends of the top of the liquid transfer workstation 1, the left and right ends of the bottom of the transport trough 61 are fixedly connected with a fixed seat 62, the inner side of the fixed seat 62 is fixedly connected with a first electric slide rail 63, the surface of the first electric slide rail 63 is slidably connected with a slider 1 631, the top of the slider 1 631 is fixedly connected with a retractable liquid transfer rack 64, the inner top of the retractable liquid transfer rack 64 is fixedly connected with a second electric slide rail 65, the surface of the second electric slide rail 65 is slidably connected with a slider 2 66, the slider A control box 67 is fixedly connected to the left side of the second 66, a telescopic column 68 is fixedly connected to the bottom of the control box 67, a connecting plate 69 is fixedly connected to the bottom of the telescopic column 68, a detachable mounting seat 601 is installed at the bottom of the connecting plate 69, a mounting groove 602 is provided at the bottom of the detachable mounting seat 601, a pipette needle 603 is inserted into the mounting groove 602, the setting of this mechanism can make the pipette needle 603 move in multiple directions, and the pipette needle 603 can be quickly moved to the required position according to the needs of the work, so that the work can be carried out smoothly, and this mechanism makes the device more efficient as a whole;

[0033] The retractable liquid transfer rack 64 runs through the inside of the transport trough 61. The transport trough 61, the first electric slide rail 63 and the slider 1 631 are provided in two groups. The connecting plate 69 and the detachable mounting seat 601 are connected together by bolts.

[0034] A support column 2 is fixedly connected to the bottom of the pipetting workstation 1 . A test tube rack 3 is arranged at the bottom of the pipetting workstation 1 . Test tubes 4 are inserted into the test tube rack 3 .

[0035] In actual operation, when the device is used, the test tube 4 is placed on the test tube rack 3, the device is started, the first electric slide rail 63 works to drive the slider 631 and the retractable pipette rack 64 to move, and the bottom pipette needle 603 is lowered by the telescopic column 68 for suction. The longitudinal position of the pipette needle 603 can be changed by the setting of the second electric slide rail 65, which can meet various work requirements. Different numbers of pipette needles 603 can be replaced according to needs by the setting of the detachable mounting seat 601. When the pipette needle 603 needs to be replaced, the pipette needle 603 is moved to the pipette rack through the device. At the top of the needle disassembly and assembly mechanism 5, the pipette needle 603 is controlled to descend until the pipette needle 603 is placed inside the pipette needle transport rack 59, and the small cylinder 58 is started to control the movement of the clamping frame 2 57 and the pneumatic telescopic column 56. The pipette needle 603 is clamped by the clamping frame 1 54 and the clamping frame 2 57. The control device is raised to remove the pipette needle 603 from the device. At this time, the valve 503 is opened to transport the steam generated by the steam generator 501 to the steam sterilization tank 52 for disinfection, thereby ensuring that the pipette needle 603 can be recycled. The overall operation of the mechanism is convenient, and quick disassembly and assembly can be achieved.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A pipetting workstation with a detachable pipetting needle, comprising a pipetting workstation (1), characterized in that: The top and bottom of the right side of the pipetting workstation (1) are provided with a pipetting needle disassembly mechanism (5), and the surface of the pipetting workstation (1) is provided with a pipetting mechanism (6); The pipette needle disassembly and assembly mechanism (5) comprises a disinfection box (51), the disinfection box (51) is fixedly connected to the top right side of the pipetting workstation (1), a steam disinfection tank (52) is provided inside the disinfection box (51), a fixing plate 1 (53) is fixedly connected to the left end of the top of the disinfection box (51), a clamping frame 1 (54) is fixedly connected to the right side of the fixing plate 1 (53), a fixing plate 2 (55) is fixedly connected to the right side of the top of the disinfection box (51), and a fixing plate 2 (55) is fixedly connected to the left side of the fixing plate 2 (55). A pneumatic telescopic column (56), the left side of the pneumatic telescopic column (56) is fixedly connected to a clamping frame 2 (57), the right side of the fixed plate 2 (55) is provided with a small cylinder (58), the top of the steam sterilizing tank (52) is provided with a pipette needle transport rack (59), the bottom right side of the pipetting workstation (1) is fixedly connected to a steam generator (501), the right side of the steam generator (501) is fixedly connected to a steam pipe (502), and the surface of the steam pipe (502) is provided with a valve (503).

2. A pipetting workstation with a detachable pipetting needle according to claim 1, characterized in that: The pneumatic telescopic column (56) is fixedly connected to the left side of the small cylinder (58), and the pneumatic telescopic column (56) penetrates the surface of the second fixing plate (55). The pneumatic telescopic column (56) and the small cylinder (58) are provided in three groups.

3. A pipetting workstation with a detachable pipetting needle according to claim 1, characterized in that: The end of the top of the steam pipe (502) away from the steam generator (501) is arranged at the bottom of the steam sterilization tank (52), and the end of the steam pipe (502) away from the steam generator (501) passes through the right side of the sterilization box (51).

4. A pipetting workstation with a detachable pipetting needle according to claim 1, characterized in that: The liquid transfer mechanism (6) comprises a transport trough (61), wherein the transport trough (61) is provided at the front and rear ends of the top of the liquid transfer workstation (1), and the left and right ends of the bottom of the transport trough (61) are fixedly connected to fixed seats (62), and the inner side of the fixed seat (62) is fixedly connected to a first electric slide rail (63), and the surface of the first electric slide rail (63) is slidably connected to a slider 1 (631), and the top of the slider 1 (631) is fixedly connected to a retractable liquid transfer rack (64), and the inner top of the retractable liquid transfer rack (64) is fixedly connected to a second electric slide rail (63). A slide rail (65), the surface of the second electric slide rail (65) is slidably connected to a second slide block (66), the left side of the second slide block (66) is fixedly connected to a control box (67), the bottom of the control box (67) is fixedly connected to a telescopic column (68), the bottom of the telescopic column (68) is fixedly connected to a connecting plate (69), a detachable mounting seat (601) is installed at the bottom of the connecting plate (69), a mounting groove (602) is provided at the bottom of the detachable mounting seat (601), and a pipette needle (603) is inserted into the mounting groove (602).

5. A pipetting workstation with a detachable pipetting needle according to claim 4, characterized in that: The retractable liquid transfer rack (64) runs through the interior of the transport trough (61); the transport trough (61), the first electric slide rail (63) and the first slide block (631) are provided in two groups; the connecting plate (69) and the detachable mounting seat (601) are connected together by bolts.

6. A pipetting workstation with a detachable pipetting needle according to claim 1, characterized in that: The bottom of the pipetting workstation (1) is fixedly connected to a support column (2), and a test tube rack (3) is arranged at the bottom of the pipetting workstation (1), and a test tube (4) is inserted into the test tube rack (3).

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