CN113145194A - Anti-dripping and liquid-transferring device - Google Patents
Anti-dripping and liquid-transferring device Download PDFInfo
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- CN113145194A CN113145194A CN202110297358.5A CN202110297358A CN113145194A CN 113145194 A CN113145194 A CN 113145194A CN 202110297358 A CN202110297358 A CN 202110297358A CN 113145194 A CN113145194 A CN 113145194A
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- 239000007788 liquid Substances 0.000 claims abstract description 74
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 26
- 238000002474 experimental method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005213 imbibition Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012898 sample dilution Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
- B01L2200/141—Preventing contamination, tampering
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an anti-dripping and liquid-transferring device which comprises a mounting plate, an anti-dripping component, a liquid-absorbing component and a driving component, wherein the anti-dripping component, the liquid-absorbing component and the driving component are arranged on the mounting plate; the driving end of the driving assembly is connected with a moving block, so that the moving block moves up and down along the height direction of the mounting plate under the driving of the driving assembly, and the liquid suction assembly is arranged on the side surface of the moving block so as to finish liquid suction and discharge operation along with the up-and-down movement of the moving block; the drip-proof assembly comprises a tray, wherein the tray is arranged below the liquid suction assembly and can horizontally move along with the up-down movement of the moving block so as to be positioned under the liquid suction assembly or on the side edge. According to the invention, the tray is arranged below the liquid suction assembly, so that the problem that liquid drips to pollute other reagents or a biological experiment/production environment in the liquid suction process of the liquid suction device in the operation of the biological field is fundamentally solved, the safety and the reliability of the liquid suction operation are improved, and the accuracy of the experiment operation is further improved.
Description
Technical Field
The invention relates to the technical field of biology, in particular to an anti-dripping and liquid-transferring device.
Background
The liquid transfer device is a common instrument in the biological field, is used for transferring a liquid reagent from an original container to another container within a certain range, and is applied to sample pretreatment, sample purification and amplification, sample dilution and concentration, sample preparation and other processing operations.
In the biological field, the requirement on the accuracy of reagent components is high, namely mutual pollution among reagents is strictly avoided, but in the pipetting process, because the existing automatic or manual pipetting devices on the market all rely on the sealing property of the pipetting equipment to ensure that the liquid reagents do not drip, the reliability of the pipetting device is difficult to ensure in the long-distance pipetting process, namely, the liquid reagents drip in the pipetting process to pollute other reagents. Meanwhile, the biological experiment/production environment has high requirement on the cleanliness of the environment, and the dropped reagent can pollute the environment and cause uncontrollable risks, particularly certain toxic and harmful reagents. Therefore, it is necessary to provide a further solution to the above problems.
Disclosure of Invention
The invention aims to provide an anti-dripping and liquid-transferring device to overcome the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an anti-dripping and liquid-transferring device comprises a mounting plate, and an anti-dripping component, a liquid-absorbing component and a driving component which are arranged on the mounting plate; wherein,
the driving end of the driving assembly is connected with a moving block, so that the moving block moves up and down along the height direction of the mounting plate under the driving of the driving assembly, and the liquid suction assembly is arranged on the side surface of the moving block so as to move up and down along with the moving block to finish liquid suction and discharge operation;
the drip-proof assembly comprises a tray, and the tray is arranged below the liquid suction assembly and can horizontally move along with the up-and-down movement of the moving block so as to be positioned right below or on the side edge of the liquid suction assembly.
In a preferred embodiment of the present invention, the drip-proof assembly further includes a contact block and a rotation handle cooperating with the contact block, one end of the rotation handle is rotatably connected to the mounting plate, and the other end of the rotation handle is connected to the tray, the contact block is disposed on the moving block and abuts against a side of the rotation handle close to the mounting plate, so that the contact block pushes the rotation handle to rotate along with the up-and-down movement of the moving block, and the rotation handle rotates to drive the tray to move horizontally to be located under or on the side of the liquid suction assembly.
In a preferred embodiment of the present invention, the anti-drip assembly further comprises a spring, and two ends of the spring are respectively connected to the mounting plate and the rotating handle.
In a preferred embodiment of the present invention, the rotation handle includes a protrusion, and when the contact block is in contact with a high point of the protrusion, the rotation handle drives the tray to be located right below the liquid suction assembly, and when the contact block is in contact with a low point of the protrusion, the rotation handle drives the tray to be located at a side of the liquid suction assembly.
In a preferred embodiment of the present invention, the side edge of the abutting portion of the rotation handle and the abutting block sequentially includes a first vertical section, a second inclined section, and a second vertical section from top to bottom, the first vertical section is parallel to the second vertical section, and the inclined section is inclined toward the inner side of the rotation handle.
In a preferred embodiment of the present invention, the rotation handle is rotatably connected to the tray.
In a preferred embodiment of the present invention, the rotation axis of the rotation handle is located on the extension line of the second vertical section.
In a preferred embodiment of the present invention, the drip-proof assembly further includes a horizontally disposed guiding rod, one end of the guiding rod is fixedly connected to the mounting plate, the other end of the guiding rod is slidably connected to the tray, and the rotating handle drives the tray to horizontally slide along the guiding rod.
In a preferred embodiment of the present invention, the rotation handle is rotatably connected to the tray through a kidney-shaped hole or a kidney-shaped groove.
In a preferred embodiment of the invention, the liquid suction assembly comprises a liquid suction device main body and a detachable gun head arranged below the liquid suction device main body, and the liquid suction device main body is connected with the moving block so as to drive the detachable gun head to move up and down to complete liquid suction and discharge operations.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the tray is arranged below the liquid suction assembly, so that the problem that liquid drips to pollute other reagents or a biological experiment/production environment in the liquid suction process of the liquid suction device in the biological field operation is fundamentally solved, the safety and the reliability of the liquid suction operation are improved, and the accuracy of the experiment operation is further improved; and through drive assembly drive antidrip subassembly and imbibition subassembly removal simultaneously, compact structure on the one hand, on the other hand for antidrip subassembly and imbibition subassembly synchronous movement have realized moving liquid operation's automation, have further improved move liquid operation's convenient degree, security, stability and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a first state of the anti-dripping and pipetting device of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a perspective view of a second state of the anti-dripping and pipetting device of the present invention;
FIG. 4 is a side view of FIG. 3;
fig. 5 is an enlarged schematic view of a portion a in fig. 4.
Specifically, 100, a mounting plate; 110. a moving block; 120. a guide rail;
210. rotating the handle; 211. a first vertical section; 212. an inclined section; 213. a vertical section II; 220. A pin; 230. riveting; 231. a kidney-shaped hole; 240. a contact block; 250. a spring; 260. A tray; 261. a liquid collecting tank; 270. a guide bar;
310. a liquid suction apparatus main body; 320. the gun head can be disassembled;
410. a drive motor; 420. a coupling; 430. a transmission screw rod; 440. and a screw nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected internally between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 to 4, an anti-dripping and pipetting device, unlike the conventional pipetting device, which only relies on a pipetting apparatus, such as a pipette and a pipette gun, the sealing property of the device itself ensures that the liquid reagent inside does not drip, thereby preventing other reagents from being polluted during pipetting, and a tray 260 linked with the pipetting apparatus (pipetting component) is added, so that the operation of sucking and releasing the liquid by the pipetting apparatus (pipetting component) is not hindered, and the tray 260 is always positioned right below the pipetting apparatus (pipetting component) during pipetting to receive the dripping liquid, thereby fundamentally solving the problem that other reagents are polluted or biological experiment/production environment is polluted due to carelessly dripping the reagent during the pipetting of the pipetting device, and improving the accuracy of biological operation.
The apparatus is divided into at least two states according to the position of the tray 260. The first state: as shown in fig. 1, the tray 260 is located right below the liquid suction assembly, that is, the tray 260 is located at the receiving position, when the apparatus is generally in the preparation operation or the liquid transfer intermediate operation, the preparation operation is that the apparatus is in the idle state or before liquid suction and discharge, because the liquid suction assembly is completely located in the semi-enclosed space formed by the mounting plate 100 and the tray 260 in this state, the liquid suction assembly is effectively protected, and the service life of the apparatus is prolonged; the intermediate operation of pipetting, namely the device is in the process of transferring liquid after pipetting, and because the tray 260 is positioned under the pipetting assembly in this state, the liquid reagent dripping from the pipetting assembly can be received, thereby realizing the situation that the liquid reagent dripping pollutes other reagents or the environment in the pipetting process. And a second state: as shown in fig. 3, tray 260 is positioned on a side of the wicking assembly, in this embodiment, adjacent to mounting plate 100, i.e., tray 260 is positioned in a relief position, wherein at least a portion of the wicking assembly (typically the tips of the tips) can be moved out of the horizontal position of tray 260 without interference, and the apparatus is typically in a wicking mode, wherein tray 260 is positioned away from the wicking assembly to avoid interference with the wicking assembly.
Specifically, the device comprises a mounting plate 100 for carrying other components, and meanwhile, the mounting plate 100 is also used for being connected with an external displacement driving device to drive the device to displace so as to realize liquid reagent transfer.
The device further includes a drip stop assembly, a wicking assembly and a drive assembly mounted on the mounting plate 100. The imbibing component is used for absorbing and releasing the liquid reagent to realize quantitative transfer of the reagent. The drip-resistant assembly is used to receive liquids that inadvertently drip from the wicking assembly to prevent contamination of other reagents or the environment. Drip-proof subassembly, imbibition subassembly pass through the cooperation realization synchronous movement of drive assembly and other parts to ensure the normal operating of imbibition subassembly, and drip-proof subassembly in time moves under the imbibition subassembly in order to accept the drippage liquid, thereby improved the degree of automation and the reliability of device.
The driving assembly is disposed on one side surface of the mounting plate 100, and the driving end of the driving assembly is connected with the moving block 110 and can drive the moving block 110 to move along the height direction of the mounting plate 100. The liquid absorbing component is arranged on the side surface of the moving block 110, and in the embodiment, the liquid absorbing component is fixed on the side surface of the moving block 110, which is far away from the mounting plate 100, so as to complete liquid absorbing and discharging operations along with the up-and-down movement of the moving block 110.
The drip-proof assembly includes a tray 260, and the tray 260 is disposed below the pipetting assembly and can horizontally move along with the up-and-down movement of the moving block 110 to be located right below or at a side of the pipetting assembly.
Preferably, part of the anti-drip assembly is arranged on the remaining side surface of the moving block 110 and is matched with the interference block 240 fixed on the moving block 110, so that the moving block 110 is driven by the driving assembly, and the anti-drip assembly and the liquid suction assembly are driven synchronously.
As shown in fig. 1, the mounting plate 100 may further include a guide rail 120 extending in a height direction of the mounting plate 100, and the moving block 110 is slidably coupled to the guide rail 120, so that the vertical movement stability of the moving block 110 is enhanced, and the stability and reliability of the overall operation of the device are improved. Generally, the guide rail 120 is disposed below the drive assembly to facilitate connection of the moving block 110 with the drive assembly and the guide rail 120.
The driving assembly may adopt screw transmission, and specifically includes a driving motor 410, a driving screw 430 connected to the motor shaft through a coupling 420, and a screw nut 440, the moving block 110 is fixedly connected to the screw nut 440, and the rotary motion of the motor shaft is converted into linear motion through the cooperation of the driving screw 430 and the screw nut 440, thereby realizing the up-and-down movement of the moving block 110. It can be understood that, at this time, the length direction of the driving screw 430 coincides with the height direction of the mounting plate 100, and the guide rail 120 needs to be provided on the mounting plate 100 to restrict the rotation of the moving block 110. The screw rod transmission has good moving stability and large load limit, so that the whole reliability of the device is high.
The anti-drip assembly includes a rotation handle 210, and an interference block 240 and a tray 260 sequentially arranged along a length direction of the rotation handle 210. The dripping liquid is received by the tray 260, and preferably the tray 260 is provided with a sump 261 to receive more liquid. It will be appreciated that after the device has been in use for a period of time, the liquid in the tray 260 may be poured out manually or by other means to avoid spillage. More preferably, the tray 260 is provided with absorbent cotton therein to absorb solid liquid reagents and avoid liquid splashing due to shaking of the device.
One end of the rotating handle 210 is rotatably connected with the mounting plate 100, the other end of the rotating handle is connected with the tray 260, the abutting block 240 is arranged on the moving block 110 and is abutted and matched with the side edge of the rotating handle 210 close to the mounting plate 100, so that the abutting block 240 pushes the rotating handle 210 to rotate along with the up-and-down movement of the moving block 110, and the rotating handle 210 rotates to drive the tray 260 to horizontally move so as to be located under or on the side edge of the liquid absorbing assembly.
In this embodiment, only one rotation handle 210 is provided, but certainly, two rotation handles may be provided, and the two rotation handles are respectively located at two symmetrical sides of the tray 260, so as to achieve more stable operation of the tray 260.
Specifically, the top end of the rotating handle 210 is rotatably connected to the mounting plate 100, and more specifically, a support plate may be disposed on the side of the mounting plate 100, and the top end of the rotating handle 210 is rotatably connected to the support plate via a pin 220, so that the rotating handle 210 can rotate around the connecting point, and the tray 260 at the tail end of the rotating handle 210 is driven to switch between the carrying position and the avoiding position.
Preferably, the rotation handle 210 includes a protrusion, the protrusion is disposed on the opposite side of the rotation handle 210 from the mounting plate 100, i.e. near the side of the mounting plate 100, when the collision block 240 collides with the high point of the protrusion, the rotation handle 210 drives the tray 260 to be located under the liquid suction assembly, i.e. located at the receiving position, and when the collision block 240 collides with the low point of the protrusion, the rotation handle 210 drives the tray 260 to be located at the side of the liquid suction assembly, i.e. located at the avoiding position.
In one embodiment, the tray 260 is fixedly connected to the rear end of the rotation handle 210, and in another embodiment, the tray 260 is rotatably connected to the rear end of the rotation handle 210, and the tray 260 is always kept substantially horizontal by the self-gravity of the tray 260 or by a weight block. However, in the above two embodiments, since the rotation handle 210 rotates circumferentially, the rotation handle 210 drives the tray 260 to move not only in the horizontal direction but also in the height direction, on one hand, the horizontal movement is unstable due to the simple driving of the rotation handle 210, which easily causes the tray 260 to shake, on the other hand, the height difference caused by the rotation of the rotation handle 210 may cause the tray 260 to deflect, that is, the structures of the above two embodiments are all easy to cause the received liquid reagent to spill out, thereby polluting other reagents or environment.
To solve at least one of the above problems, as shown in fig. 1 and 2, the drip-proof assembly may further include a guide bar 270, the guide bar 270 is horizontally disposed, and one end of the guide bar 270 is fixed to the mounting plate 100, and the other end is slidably connected to the tray 260, in this embodiment, the guide bar 270 is inserted into the tray 260, so that the tray 260 can move along the guide bar 270, thereby improving the stability of the horizontal movement of the tray 260. Preferably, the tray 260 is provided with a self-lubricating bearing that slides in cooperation with the guide bar 270. Further, as shown in fig. 5, the rotation handle 210 is rotatably connected to the tray 260 through the kidney-shaped hole 231 or the kidney-shaped groove to offset a height variation caused by the rotation of the rotation handle 210. Specifically, the rotation handle 210 and the tray 260 are rotatably connected by a rivet 230, and the rivet 230 is located in a kidney-shaped hole 231 formed in the rotation handle 210 or a kidney-shaped groove formed in the tray 260.
The abutting block 240 is disposed on the side of the moving block 110 and located between the mounting plate 100 and the rotating handle 210, so that the abutting block can always abut against the side of the rotating handle 210 where the protruding portion is disposed, that is, no matter which high position the driving assembly drives the moving block 110, so that the abutting block 240 thereon is located, the side of the abutting block 240 always abuts against the side of the rotating handle 210, and therefore the linear motion of the abutting block 240 is converted into the rotating motion of the rotating handle 210 through the cooperation of the abutting block 240 and the protruding portion. The contact block 240 is preferably a pulley, so that sliding friction is generated between the contact block 240 and the rotation handle 210, thereby reducing friction resistance and making the device operate more smoothly and stably.
Preferably, the anti-drip assembly further comprises a spring 250, wherein both ends of the spring 250 are respectively connected to the mounting plate 100 and the rotation handle 210, so as to ensure the stability of the rotation handle 210 abutting against the interference block 240. Specifically, the spring 250 is a tension spring, and a hook portion may be respectively disposed on the mounting plate 100 and the rotation handle 210, and two ends of the spring 250 are respectively fixed to the hook portion, so that the spring 250 is conveniently and stably mounted. More preferably, as shown in fig. 4, when the device is in the second state, the spring 250 is in a horizontal linear state, and the stability of the evasive position of the tray 260 is ensured with a small pulling force or critical point. Furthermore, the spring 250 is installed as close to the end of the rotation handle 210 as possible, i.e., away from the rotation center point of the rotation handle 210, so as to reduce the requirement for the accuracy of the spring rate of the spring 250 and reduce the cost of the device. Generally, the spring 250 is disposed at a lower center of the rotation handle 210.
More specifically, in order to achieve a more stable fit between the rotation handle 210 and the interference block 240, the side of the rotation handle 210 abutted against the interference block 240 sequentially comprises a first vertical section 211, an inclined section 212 and a second vertical section 213 from top to bottom, the first vertical section 211 and the second vertical section 213 are parallel, and the inclined section 212 inclines towards the inner side of the rotation handle 210, i.e., the first vertical section 211 and the inclined section 212 form a protruding part. In the first state, as shown in fig. 2, the first vertical segment 211 is perpendicular to the horizontal plane, and the abutting block 240 abuts against the first vertical segment 211, so that when the abutting block 240 on the moving block 110 moves upwards again, the tray 260 is not driven to move horizontally in the direction away from the mounting plate 100, thereby ensuring the stability of the positioning of the tray 260. In the second state, as shown in fig. 4, the second vertical section 213 is perpendicular to the horizontal plane, the abutting block 240 moves along the inward inclined section 212, so that the rotating handle 210 rotates in the direction of the mounting plate 100 under the action of gravity or the pulling force of the spring 250, and drives the tray 260 to move toward the mounting plate 100, thereby converting into the avoidance position, and meanwhile, the moving block 110 continuously moves downward through the second vertical section 213 to allow the fluid suction assembly to reach the operating position, and also prevent the tray 260 from continuously moving in the direction close to the mounting plate 100, so as to ensure the stability of the avoidance position of the tray 260, reduce the moving distance of the conversion between the avoidance position and the support position, and make the device operate more stably.
More preferably, the rotation axis of the rotation handle 210 is located on the extension line of the second vertical segment 213, so that the state of the tray 260 in the avoidance position is more stable, and the positions of the rotation handle 210, the collision block 240 and the tray 260 are more reasonably set.
The pipetting assembly may specifically include a pipetting device body 310 and a removable tip 320 disposed therebelow, the pipetting device body 310 and the moving block 110 being fixed to move up and down with the moving block 110 so as to cause the tip to aspirate or dispense liquid reagent from or toward the vessel.
In conclusion, the tray is arranged below the liquid suction assembly, so that the situation that liquid drips to pollute other reagents or a biological experiment/production environment in the liquid suction process of the liquid suction device in the biological field operation is fundamentally solved, the safety and the reliability of the liquid suction operation are improved, and the accuracy of the experiment operation is further improved; and through drive assembly drive antidrip subassembly and imbibition subassembly removal simultaneously, compact structure on the one hand, on the other hand for antidrip subassembly and imbibition subassembly synchronous movement have realized moving liquid operation's automation, have further improved moving liquid operation's convenient degree, security, stability and reliability
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. An anti-drip and liquid-transfer device is characterized by comprising a mounting plate (100), and an anti-drip component, a liquid-transfer component and a driving component which are arranged on the mounting plate (100); wherein,
the driving end of the driving assembly is connected with a moving block (110), so that the moving block (110) moves up and down along the height direction of the mounting plate (100) under the driving of the driving assembly, and the liquid suction assembly is arranged on the side surface of the moving block (110) to move up and down along with the moving block (110) to finish liquid suction and discharge operation;
the anti-dripping component comprises a tray (260), and the tray (260) is arranged below the liquid suction component and can horizontally move along with the up-and-down movement of the moving block (110) so as to be positioned right below or on the side of the liquid suction component.
2. The anti-drip pipetting device according to claim 1, wherein the anti-drip assembly further comprises a contact block (240) and a rotating handle (210) matched with the contact block (240), one end of the rotating handle (210) is rotatably connected with the mounting plate (100), the other end of the rotating handle is connected with the tray (260), the contact block (240) is arranged on the moving block (110) and abuts against the side edge of the rotating handle (210) close to the mounting plate (100), so that the contact block (240) pushes the rotating handle (210) to rotate along with the up-and-down movement of the moving block (110), and the rotating handle (210) rotates to drive the tray (260) to horizontally move to be located right below or at the side edge of the pipetting assembly.
3. An anti-drip pipetting device according to claim 2, wherein the anti-drip assembly further comprises a spring (250), both ends of the spring (250) being connected to the mounting plate (100) and the turning handle (210), respectively.
4. An anti-drip pipetting device according to claim 2, wherein the rotation handle (210) comprises a protrusion, the rotation handle (210) bringing the tray (260) to be located directly below the pipetting assembly when the abutment block (240) abuts against a high point of the protrusion, and the rotation handle (210) bringing the tray (260) to be located at a side of the pipetting assembly when the abutment block (240) abuts against a low point of the protrusion.
5. The anti-drip pipetting device according to claim 2, wherein the side of the rotation handle (210) abutted against the abutment block (240) comprises a first vertical segment (211), a second inclined segment (212) and a second vertical segment (213) from top to bottom in sequence along the height direction thereof, the first vertical segment (211) and the second vertical segment (213) are parallel, the first inclined segment (212) inclines towards the inner side of the rotation handle (210), when the abutment block (240) abuts against the first vertical segment (211), the rotation handle (210) drives the tray (260) to be located right below the pipetting assembly, and when the abutment block (240) abuts against the tail end of the first inclined segment (212) or the second vertical segment (213), the rotation handle (210) drives the tray (260) to be located at the side of the pipetting assembly.
6. An anti-drip pipetting device according to claim 2, characterized in that the turning handle (210) is in turning connection with the tray (260).
7. An anti-drip pipetting device according to claim 5, characterized in that the axis of rotation of the rotation handle (210) is located on the extension of the second vertical segment (213).
8. An anti-drip pipetting device according to claim 6, wherein the anti-drip assembly further comprises a horizontally disposed guide rod (270), one end of the guide rod (270) is fixedly connected to the mounting plate (100), the other end is slidably connected to the tray (260), and the rotation handle (210) drives the tray (260) to horizontally slide along the guide rod (270).
9. An anti-drip pipetting device according to claim 8, wherein the rotation handle (210) is rotatably connected to the tray (260) by means of a kidney-shaped hole (231) or a kidney-shaped slot.
10. The anti-drip pipetting device according to claim 1, wherein the pipetting assembly comprises a pipetting device main body (310) and a detachable gun head (320) arranged below the pipetting device main body, and the pipetting device main body (310) is connected with the moving block (110) to drive the detachable gun head (320) to move up and down to complete the pipetting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110297358.5A CN113145194A (en) | 2021-03-19 | 2021-03-19 | Anti-dripping and liquid-transferring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110297358.5A CN113145194A (en) | 2021-03-19 | 2021-03-19 | Anti-dripping and liquid-transferring device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130243666A1 (en) * | 2012-03-02 | 2013-09-19 | Eppendorf Ag | Pipetting Apparatus and Method for Production Thereof |
| CN208255242U (en) * | 2018-06-13 | 2018-12-18 | 安徽为臻生物工程技术有限公司 | A kind of Full-automatic chemiluminescence immunoassay analysis meter |
| CN110841740A (en) * | 2019-11-08 | 2020-02-28 | 深圳市万臣科技有限公司 | Liquid transfer platform |
| CN111530517A (en) * | 2019-02-07 | 2020-08-14 | 赛多利斯百得液体处理公司 | Pipette tip removal in automatic pipette modules |
| CN111617816A (en) * | 2020-06-27 | 2020-09-04 | 上海汇像信息技术有限公司 | Drip-proof liquid filling device |
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- 2021-03-19 CN CN202110297358.5A patent/CN113145194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130243666A1 (en) * | 2012-03-02 | 2013-09-19 | Eppendorf Ag | Pipetting Apparatus and Method for Production Thereof |
| CN208255242U (en) * | 2018-06-13 | 2018-12-18 | 安徽为臻生物工程技术有限公司 | A kind of Full-automatic chemiluminescence immunoassay analysis meter |
| CN111530517A (en) * | 2019-02-07 | 2020-08-14 | 赛多利斯百得液体处理公司 | Pipette tip removal in automatic pipette modules |
| CN110841740A (en) * | 2019-11-08 | 2020-02-28 | 深圳市万臣科技有限公司 | Liquid transfer platform |
| CN111617816A (en) * | 2020-06-27 | 2020-09-04 | 上海汇像信息技术有限公司 | Drip-proof liquid filling device |
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