CN215029033U - Pipette prevents suck-back design auxiliary device - Google Patents

Pipette prevents suck-back design auxiliary device Download PDF

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Publication number
CN215029033U
CN215029033U CN202120879816.1U CN202120879816U CN215029033U CN 215029033 U CN215029033 U CN 215029033U CN 202120879816 U CN202120879816 U CN 202120879816U CN 215029033 U CN215029033 U CN 215029033U
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CN
China
Prior art keywords
fixedly connected
connecting rod
liquid
spring
pipettor
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Expired - Fee Related
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CN202120879816.1U
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Chinese (zh)
Inventor
孙振
王中群
臧光耀
李丽华
邵晨
袁伟
张莉莉
钱勇江
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Affiliated Hospital of Jiangsu University
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Affiliated Hospital of Jiangsu University
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Priority to CN202120879816.1U priority Critical patent/CN215029033U/en
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Abstract

The utility model provides a pipettor prevents suck-back design auxiliary device belongs to the auxiliary device field, include: the lower part of the liquid transfer device body is connected with a dismounting head through threads; the second mounting shell is fixedly connected to the circumferential surface of the disassembling head, a sealing block is movably inserted in the second mounting shell, the sealing block is movably inserted in the disassembling head, the lower end of the disassembling head is fixedly connected with a connector and an elastic limiting mechanism, the elastic limiting mechanism is arranged on the second mounting shell, and the elastic limiting mechanism is connected with the sealing block to limit the position of the sealing block; the liquid transfer mechanism is arranged on the liquid transfer device body and is used for transferring liquid; the utility model discloses can solve the pipettor imbibition among the prior art and the tapping in-process, because reasons such as liquid viscosity or suction head laminating degree, liquid suck-back pipettor stack shell often can appear, cause the pipettor to block up, if not in time wash the problem that leads to the internals corruption even.

Description

Pipette prevents suck-back design auxiliary device
Technical Field
The utility model belongs to the auxiliary device field, concretely relates to pipettor is prevented suck-back design auxiliary device.
Background
The pipettor is one of the most common and indispensable tools in scientific research, and the application range of the pipettor relates to multiple fields of biological environment, chemical materials, medical inspection and the like. In the process of liquid suction and liquid discharge of the pipettor, due to liquid viscosity or the attaching degree of a suction head and other reasons, liquid is often sucked into a barrel body of the pipettor reversely, the pipettor is blocked, internal components are corroded even if not cleaned in time, the service life of the pipettor is seriously influenced, and small economic loss is brought.
At present, many attempts are made to improve pipettors, for example, a sample suction mode is changed, but the problem of suck-back cannot be solved, so that the suck-back prevention auxiliary device is designed, the suck-back occurrence of the pipettors is reduced, the possibility of damage to the pipettors caused by suck-back is reduced, and unnecessary economic loss is avoided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pipettor is prevented down-draught design auxiliary device aims at solving the pipettor imbibition among the prior art and the tapping in-process, because reasons such as liquid viscosity or suction head laminating degree can appear liquid suck-back pipettor stack shell often, causes the pipettor to block up, if not in time wash the problem that leads to the internals corruption even.
In order to achieve the above object, the utility model provides a following technical scheme:
pipettor prevents suck-back design auxiliary device includes:
the lower part of the liquid transfer device body is connected with a dismounting head through threads;
the second mounting shell is fixedly connected to the circumferential surface of the disassembling head, a sealing block is movably inserted in the second mounting shell, the sealing block is movably inserted in the disassembling head, and the lower end of the disassembling head is fixedly connected with a connecting head;
the elastic limiting mechanism is arranged on the second mounting shell and connected with the sealing block to limit the position of the sealing block;
the liquid transferring mechanism is arranged on the liquid transferring device body and is used for transferring liquid; and
the pushing mechanism is arranged on the pipettor body and used for driving the elastic limiting mechanism to move so as to realize the movement of the sealing block.
As an optimized scheme, elasticity stop gear includes elastomeric element and insertion component, elastomeric element sets up on the second installation shell, elastomeric element is connected with the position of sealed piece of restriction with sealed piece, insertion component sets up on the second installation shell, insertion component is connected with elastomeric element and removes in order to realize the sealed piece, pushing mechanism is including pushing part and resilience part, pushing part sets up on the pipettor body, pushing part is used for driving insertion component and removes in order to realize the sealed piece, resilience part sets up on pushing part, resilience part is connected in order to realize its resilience with pushing part.
As an optimized scheme, elastomeric element includes limiting plate, inserted bar and third spring, limiting plate fixed connection is between the upper and lower inner wall of second installation shell, inserted bar fixed connection is in the left end of sealed piece, and the inserted bar activity runs through the limiting plate and extends to the outside of limiting plate, the circumference that the inserted bar was located to the third spring housing is on the surface, and third spring and sealed piece fixed connection.
As a preferred scheme of the utility model, grafting part includes movable block, second jack, first jack and slot, the left end of second installation shell is seted up to the slot, the upper end of second installation shell is seted up to the second installation shell, movable block fixed connection is in the left end of inserted bar, and the movable block activity is pegged graft in the slot, the upper end of movable block is seted up to the second jack.
As a preferred scheme, the promotion part includes first installation shell, second connecting rod, presses board and ejector pad, first installation shell fixed connection is on the surface of pipettor body, the activity of second connecting rod is pegged graft in the upper end of first installation shell, and the activity of second connecting rod runs through first installation shell and extends to the downside of first installation shell, press the upper end of board fixed connection in the second connecting rod, ejector pad fixed connection is in the lower extreme of second connecting rod.
As an optimal scheme of the utility model, the part of kick-backing includes spacing ring and first spring, spacing ring fixed connection is on the circumferential surface of second connecting rod, first spring fixed connection is in the lower extreme of spacing ring, and first spring housing locates the second connecting rod on the surface.
As an optimized scheme, move liquid mechanism and include according to dish, head rod, piston piece, second spring and mounting panel, mounting panel fixed connection is on the inner wall of pipettor body, second spring fixed connection is in the upper end of mounting panel, the head rod activity is pegged graft in the upper end of pipettor body, and the head rod activity runs through the pipettor body and extends to the pipettor originally internally, piston piece fixed connection is in the lower extreme of head rod, according to the upper end of dish fixed connection in the head rod.
As an optimized scheme of the utility model, the fixed connection has the supporting shoe on the surface of pipettor body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in this scheme, through threaded connection between pipettor body and the dismantlement head, can realize pegging graft and installing between pipettor body and the dismantlement head, thereby realize dismantling the dismantlement of head, make the dismantlement head be convenient for wash, sealed piece activity is pegged graft in dismantling the head, can realize the inside jam that will dismantle the head, thereby prevent that liquid from getting into pipettor this internally through dismantling the head, the position of sealed piece can be restricted to elasticity through the third spring, prevent that sealed piece from taking place to remove.
2. In this scheme, can realize the ejector pad through promoting according to the board and remove, the ejector pad removes the activity and pegs graft in the second jack, thereby realize that the ejector pad removes, the ejector pad removes and drives the inserted bar and remove, the inserted bar removes and drives the sealing block and remove, make the connector be linked together with the pipettor body, thereby realize the extraction of liquid, loosen and press the board, the elasticity of first spring promotes the spacing ring and removes, the spacing ring removes and drives the ejector pad and remove, and the elasticity of third spring promotes the sealing block and pegs graft in the dismantlement head, make connector and pipettor body separate.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partial exploded view of a second connecting rod of the present invention;
FIG. 3 is a partial exploded view of the detachment head of the present invention;
fig. 4 is a partial cross-sectional view of a pipette body of the present invention;
fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.
In the figure: 1. a pipettor body; 2. a support block; 3. a first connecting rod; 4. pressing a disc; 5. pressing a plate; 6. a second connecting rod; 7. a first mounting case; 8. a push block; 9. a second mounting case; 10. a slot; 11. disassembling the head; 12. a limiting ring; 13. a first spring; 14. a first jack; 15. a piston block; 16. a second spring; 17. mounting a plate; 18. a moving block; 19. a second jack; 20. a limiting plate; 21. inserting a rod; 22. a sealing block; 23. a third spring; 24. a connecting head.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-5, the technical solution provided in this embodiment is as follows:
pipettor prevents suck-back design auxiliary device includes:
the lower part of the liquid transfer device body 1 is connected with a dismounting head 11 through threads;
second installation shell 9, second installation shell 9 fixed connection have sealed 22 in the activity grafting of second installation shell 9 on the circumference surface of dismantling first 11, sealed 22 activity grafting in dismantling first 11, the lower extreme fixedly connected with connector 24 of dismantling first 11.
In this embodiment, threaded connection between pipettor body 1 and the dismantlement head 11 can realize dismantling the dismantlement and the installation of head 11, and pipettor body 1 is linked together with dismantling head 11, and second installation shell 9 is linked together with dismantling head 11, pegs graft in dismantling head 11 through sealed piece 22, can realize isolated pipettor body 1 and connector 24.
The elastic limiting mechanism is arranged on the second mounting shell 9 and connected with the sealing block 22 to limit the position of the sealing block 22; pushing mechanism, pushing mechanism sets up on pipettor body 1, pushing mechanism is used for driving elasticity stop gear in order to realize the removal of sealed piece 22, it is specific, elasticity stop gear includes elastomeric element and insertion parts, elastomeric element sets up on second installation shell 9, elastomeric element is connected with sealed piece 22 in order to restrict the position of sealed piece 22, insertion parts sets up on second installation shell 9, insertion parts is connected in order to realize sealed piece 22 and removes with elastomeric element, pushing mechanism is including pushing component and resilience part, pushing component sets up on pipettor body 1, pushing component is used for driving insertion parts and removes in order to realize sealed piece 22, resilience part sets up on pushing component, resilience part is connected in order to realize its resilience with pushing component.
In this embodiment, the elastic member is connected to the sealing block 22 to limit the position of the sealing block 22, the insertion member is connected to the elastic member to move the sealing block 22, the pushing member is used to drive the insertion member to move the sealing block 22, and the resilient member is connected to the pushing member to achieve the resilient thereof.
Move liquid mechanism, move liquid mechanism and set up on pipettor body 1, move liquid mechanism and be used for moving of liquid to put, it is specific, move liquid mechanism including pressing dish 4, head rod 3, piston piece 15, second spring 16 and mounting panel 17, mounting panel 17 fixed connection is on pipettor body 1's inner wall, second spring 16 fixed connection is in mounting panel 17's upper end, 3 activities of head rod are pegged graft in the upper end of pipettor body 1, and 3 activities of head rod run through pipettor body 1 and extend to pipettor in the body 1, 15 fixed connection of piston piece are in the lower extreme of head rod 3, press the upper end of dish 4 fixed connection in head rod 3.
In this embodiment, through according to fixed connection between dish 4 and the head rod 3, can realize according to dish 4 removal drive head rod 3 and remove, through fixed connection between head rod 3 and the piston piece 15, can realize that piston piece 15 removes, piston piece 15 removes and compresses second spring 16, and mounting panel 17 is used for restricting the position of second spring 16.
Specifically, the elastic component includes limiting plate 20, inserted bar 21 and third spring 23, and limiting plate 20 fixed connection is between the upper and lower inner wall of second installation shell 9, and inserted bar 21 fixed connection is in the left end of sealed piece 22, and the activity of inserted bar 21 runs through limiting plate 20 and extends to the outside of limiting plate 20, and third spring 23 overlaps on locating the circumferential surface of inserted bar 21, and third spring 23 and sealed piece 22 fixed connection.
In this embodiment, the position of the limiting plate 20 is used for limiting the position of the third spring 23, the inserted link 21 is used for connecting the moving block 18 and the sealing block 22, the position of the sealing block 22 is limited by the third spring 23, and the position of the limiting plate 20 is located at the left side of the sealing block 22.
Specifically, the insertion part comprises a moving block 18, a second insertion hole 19, a first insertion hole 14 and a slot 10, the slot 10 is formed in the left end of the second mounting shell 9, the second mounting shell 9 is formed in the upper end of the second mounting shell 9, the moving block 18 is fixedly connected to the left end of the insertion rod 21, the moving block 18 is movably inserted into the slot 10, and the second insertion hole 19 is formed in the upper end of the moving block 18.
In this embodiment, the moving block 18 is fixedly connected with the insertion rod 21, so that the moving block 18 can move to drive the insertion rod 21 to move, the second insertion hole 19 is special in shape, and the second insertion hole 19 is matched with the inclined plane of the push block 8.
Specifically, the pushing part includes first installation shell 7, second connecting rod 6, presses board 5 and ejector pad 8, and first installation shell 7 fixed connection is on pipettor body 1's surface, and the activity of second connecting rod 6 is pegged graft in the upper end of first installation shell 7, and the activity of second connecting rod 6 runs through first installation shell 7 and extends to the downside of first installation shell 7, presses the upper end of board 5 fixed connection in second connecting rod 6, and ejector pad 8 fixed connection is in the lower extreme of second connecting rod 6.
In this embodiment, first installation shell 7 is used for installing second connecting rod 6, through pressing fixed connection between board 5 and the second connecting rod 6, can realize pressing board 5 to remove and drive second connecting rod 6 and remove, through fixed connection between second connecting rod 6 and the ejector pad 8, can realize that second connecting rod 6 removes, through fixed connection between second connecting rod 6 and the ejector pad 8, can realize that ejector pad 8 removes.
Specifically, the rebound component comprises a limiting ring 12 and a first spring 13, the limiting ring 12 is fixedly connected to the circumferential surface of the second connecting rod 6, the first spring 13 is fixedly connected to the lower end of the limiting ring 12, and the first spring 13 is sleeved on the surface of the second connecting rod 6.
In this embodiment, the position of the limiting ring 12 is limited by the first spring 13, and the position of the limiting ring 12 can be limited by the elastic force of the first spring 13.
Specifically, referring to fig. 1, a support block 2 is fixedly connected to a surface of the pipette body 1.
In this embodiment, the supporting block 2 is convenient for holding the pipette body 1.
The utility model provides a pipettor prevents that suck-back design auxiliary device's theory of operation or working process do: promote according to board 5, move according to board 5 and drive second connecting rod 6 and remove, second connecting rod 6 moves and drives spacing ring 12 and remove, spacing ring 12 removes compression first spring 13, second connecting rod 6 removes and drives ejector pad 8 and remove, ejector pad 8 activity is pegged graft in second jack 19, make the movable block 18 remove, movable block 18 removes and drives inserted bar 21 and removes, inserted bar 21 removes and drives sealed piece 22 and remove, sealed piece 22 removes and compresses third spring 23, promote according to dish 4, it drives first connecting rod 3 and removes to press dish 4 to remove, first connecting rod 3 removes and drives piston piece 15 and remove, piston piece 15 removes and compresses second spring 16.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. Pipettor prevents suck-back design auxiliary device, its characterized in that includes:
the liquid transfer device comprises a liquid transfer device body (1), wherein a dismounting head (11) is connected to the lower portion of the liquid transfer device body (1) in a threaded mode;
the second mounting shell (9) is fixedly connected to the circumferential surface of the dismounting head (11), a sealing block (22) is movably inserted in the second mounting shell (9), the sealing block (22) is movably inserted in the dismounting head (11), and the lower end of the dismounting head (11) is fixedly connected with a connector (24);
the elastic limiting mechanism is arranged on the second mounting shell (9) and is connected with the sealing block (22) to limit the position of the sealing block (22);
the liquid transfer mechanism is arranged on the liquid transfer device body (1) and is used for transferring liquid; and
the liquid transfer device comprises a pushing mechanism, wherein the pushing mechanism is arranged on the liquid transfer device body (1) and used for driving an elastic limiting mechanism to move a sealing block (22).
2. The pipette suck back prevention design assistance device according to claim 1, characterized in that: elasticity stop gear includes elastomeric element and insertion part, elastomeric element sets up on second installation shell (9), elastomeric element is connected with sealed piece (22) in order to restrict the position of sealed piece (22), insertion part sets up on second installation shell (9), insertion part is connected with elastomeric element and removes in order to realize sealed piece (22), pushing mechanism is including pushing component and resilience part, pushing component sets up on pipettor body (1), pushing component is used for driving insertion part and removes in order to realize sealed piece (22), resilience part sets up on pushing component, resilience part is connected in order to realize its resilience with pushing component.
3. The pipette suck back prevention design assistance device according to claim 2, characterized in that: the elastic component comprises a limiting plate (20), an inserting rod (21) and a third spring (23), the limiting plate (20) is fixedly connected between the upper inner wall and the lower inner wall of the second installation shell (9), the inserting rod (21) is fixedly connected to the left end of the sealing block (22), the inserting rod (21) movably penetrates through the limiting plate (20) and extends to the outer side of the limiting plate (20), the third spring (23) is sleeved on the circumferential surface of the inserting rod (21), and the third spring (23) is fixedly connected with the sealing block (22).
4. The pipette suck back prevention design assistance device according to claim 3, characterized in that: the plug component comprises a moving block (18), a second jack (19), a first jack (14) and a slot (10), the slot (10) is formed in the left end of the second mounting shell (9), the second mounting shell (9) is formed in the upper end of the second mounting shell (9), the moving block (18) is fixedly connected to the left end of the inserted rod (21), the moving block (18) is movably plugged in the slot (10), and the second jack (19) is formed in the upper end of the moving block (18).
5. The pipette suck back prevention design assistance device according to claim 4, characterized in that: the push component comprises a first installation shell (7), a second connecting rod (6), a press plate (5) and a push block (8), the first installation shell (7) is fixedly connected to the surface of the pipette body (1), the second connecting rod (6) is movably inserted into the upper end of the first installation shell (7), the second connecting rod (6) movably penetrates through the first installation shell (7) and extends to the lower side of the first installation shell (7), the press plate (5) is fixedly connected to the upper end of the second connecting rod (6), and the push block (8) is fixedly connected to the lower end of the second connecting rod (6).
6. The pipette suck back prevention design assistance device according to claim 5, characterized in that: the resilience component comprises a limiting ring (12) and a first spring (13), the limiting ring (12) is fixedly connected to the circumferential surface of the second connecting rod (6), the first spring (13) is fixedly connected to the lower end of the limiting ring (12), and the first spring (13) is sleeved on the surface of the second connecting rod (6).
7. The pipette suck back prevention design assistance device according to claim 6, characterized in that: the liquid-transfering mechanism comprises a press disc (4), a first connecting rod (3), a piston block (15), a second spring (16) and a mounting plate (17), the mounting plate (17) is fixedly connected to the inner wall of the liquid-transfering device body (1), the second spring (16) is fixedly connected to the upper end of the mounting plate (17), the first connecting rod (3) is movably inserted into the upper end of the liquid-transfering device body (1), the first connecting rod (3) movably penetrates through the liquid-transfering device body (1) and extends into the liquid-transfering device body (1), the piston block (15) is fixedly connected to the lower end of the first connecting rod (3), and the press disc (4) is fixedly connected to the upper end of the first connecting rod (3).
8. The pipette suck back prevention design assistance device according to claim 7, characterized in that: the surface of the pipettor body (1) is fixedly connected with a supporting block (2).
CN202120879816.1U 2021-04-27 2021-04-27 Pipette prevents suck-back design auxiliary device Expired - Fee Related CN215029033U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120879816.1U CN215029033U (en) 2021-04-27 2021-04-27 Pipette prevents suck-back design auxiliary device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120879816.1U CN215029033U (en) 2021-04-27 2021-04-27 Pipette prevents suck-back design auxiliary device

Publications (1)

Publication Number Publication Date
CN215029033U true CN215029033U (en) 2021-12-07

Family

ID=79109966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120879816.1U Expired - Fee Related CN215029033U (en) 2021-04-27 2021-04-27 Pipette prevents suck-back design auxiliary device

Country Status (1)

Country Link
CN (1) CN215029033U (en)

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Granted publication date: 20211207