CN214681807U - Self-suction quantitative pipette - Google Patents
Self-suction quantitative pipette Download PDFInfo
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- CN214681807U CN214681807U CN202022782852.4U CN202022782852U CN214681807U CN 214681807 U CN214681807 U CN 214681807U CN 202022782852 U CN202022782852 U CN 202022782852U CN 214681807 U CN214681807 U CN 214681807U
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- pipette
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Abstract
The utility model discloses a from inhaling quantitative pipette, its technical scheme is: including the pipette, the first graduation apparatus of pipette outside fixedly connected with, pipette bottom fixedly connected with inlet channel, pipette one side bottom fixedly connected with is connected violently and is managed, and the connection is violently managed and is kept away from pipette one end and is equipped with the intercommunication pipeline, and intercommunication pipeline keeps away from pipette one end fixedly connected with collector tube, and collector tube outside fixedly connected with second graduation apparatus, the collector tube top is equipped with seal assembly, and the pipette top is equipped with spacing imbibition subassembly, and spacing imbibition subassembly includes movable horizontal pole, sliding piston and connection riser, and one kind is from the beneficial effect of inhaling quantitative pipette is: the position that the piston stopped when having avoided simultaneously observing the scale of pipette through artifical pulling piston to get quantitative liquid can't coincide completely and lead to quantitative liquid to appear the deviation and cause the liquid that the experiment needs to get the volume inaccurate, has promoted the result precision of experiment, has reduced user's trouble.
Description
Technical Field
The utility model relates to a quantitative pipette technical field, concretely relates to from inhaling quantitative pipette.
Background
The pipette refers to a glass device for accurately taking a quantitative solution, the pipette is an important chemical glass device and is important for quantitatively taking a liquid, and the quantitative pipetting is the most common experimental operation in all physical, chemical and biological laboratories.
The prior art has the following defects: the present quantitative pipette most of directness will need to take out during the quantitative liquid inhales the pipette, next step experimental operation carries out, the pipette that uses now generally will inhale the pipette with liquid through the pulling piston, but when the scale of observing the pipette simultaneously through artifical pulling piston gets quantitative liquid, the position that the piston stopped can't coincide completely and lead to the quantitative liquid of artifical absorption certain deviation can appear, the liquid volume of getting that has caused the experiment needs is inaccurate, make the result of experiment inaccurate, bring very big trouble for the user.
Therefore, it is necessary to provide a self-priming quantitative pipette to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a from inhaling quantitative pipette carries on spacingly and makes the piston ration absorb liquid more accurate to the piston of imbibition through setting up spacing imbibition subassembly to when the scale of solving through artifical pulling piston simultaneous observation pipette gets quantitative liquid, the position that the piston stopped can't coincide completely and lead to the quantitative liquid of artifical absorption certain deviation probably to appear, and the liquid that has caused the experiment needs is got the volume inaccurate, makes the unsafe problem of result of experiment.
In order to achieve the above object, the present invention provides the following technical solutions: a self-absorption quantitative pipette comprises a pipette, wherein a first scale is fixedly connected to the outer side of the pipette, a liquid inlet pipeline is fixedly connected to the bottom of the pipette, a connecting transverse pipe is fixedly connected to the bottom of one side of the pipette, a communicating pipeline is arranged at one end, away from the pipette, of the connecting transverse pipe, a liquid collecting pipe is fixedly connected to one end, away from the pipette, of the communicating pipeline, a second scale is fixedly connected to the outer side of the liquid collecting pipe, a sealing assembly is arranged at the top of the liquid collecting pipe, and a limiting liquid absorption assembly is arranged at the top of the pipette;
the limiting liquid suction assembly comprises a movable cross rod, a sliding piston and a connecting vertical plate, a sealing circular plate is fixedly connected to the top of the liquid suction pipe, the movable cross bar is positioned at the top of the sealing circular plate, the bottom of the movable cross bar is fixedly connected with a movable pull rod, the sliding piston is positioned at the bottom of the movable pull rod, the top of the sliding piston is provided with a limiting ring, the limiting ring is connected with the inner side of the pipette in a sliding way, the top of the limiting ring is provided with a sliding vertical plate, the top of the connecting vertical plate is fixedly connected with a connecting block, the bottom of one side of the connecting block, which is far away from the connecting vertical plate, is fixedly connected with the sliding vertical plate, the outer side of the bottom of the connecting vertical plate is provided with a limiting vertical sleeve, the limiting vertical sleeve is fixedly connected with the pipette, the surface of one side of the connecting vertical plate, which is far away from the bottom of the pipette, is provided with a limiting vertical groove, the limiting vertical sleeve is provided with a screw knob at one side far away from the connecting vertical plate, and a threaded hole is formed in the surface of one side of the limiting vertical sleeve.
Preferably, the sealing assembly comprises a sealing gasket, the sealing gasket is located at the top of the liquid collecting pipe, the sealing gasket is in threaded connection with the top of the liquid collecting pipe, a movable cover is fixedly connected to the top of the sealing gasket, and a screw cap is fixedly connected to the top of the movable cover.
Preferably, one end of the communicating pipeline, which is close to the connecting transverse pipe, is in threaded connection with a movable threaded sleeve, and the movable threaded sleeve is in threaded connection with the connecting transverse pipe.
Preferably, the movable pull rod penetrates through the sealing circular plate and is fixedly connected with the sliding piston, and the sliding piston is in sliding connection with the inner side of the pipette.
Preferably, the sliding vertical plate penetrates through the sealing circular plate and is fixedly connected with the limiting circular ring, and the connecting vertical plate is located on one side, far away from the movable cross rod, of the sliding vertical plate.
Preferably, the quantity of screw hole sets up to a plurality ofly, and is a plurality of the screw hole is vertical array distribution, screw knob and screw hole threaded connection, screw knob runs through the screw hole and spacing vertical slot phase-match.
Preferably, the sealing assembly comprises a limiting circular plate, the limiting circular plate is located at the top of the liquid collecting pipe, limiting clamping grooves are formed in two ends of the bottom of the limiting circular plate, limiting clamping blocks are fixedly connected to two ends of the inner side of the top of the liquid collecting pipe, the limiting clamping blocks are matched with the limiting clamping grooves, a movable disc is fixedly connected to the top of the limiting circular plate, and an arc plate is fixedly connected to the top of the movable disc.
The utility model has the advantages that:
the utility model discloses a set up spacing imbibition subassembly and come to carry on spacingly and make the piston ration absorb liquid more accurate, at first according to the component of required liquid, observe first graduation apparatus and select accurate scale mark, promote the spacing ring motion of slip riser promotion after that, spacing ring motion to the top of required liquid scale, rotatory knob passes through screw hole and spacing perpendicular groove phase-match after that, make connection riser and slip riser fixed, then pull movable horizontal pole again and drive movable pull rod and slip piston motion, absorb quantitative liquid, the liquid of absorption gets into the intercommunication pipeline through connecting violently the pipe, collect in carrying out the collector tube from the intercommunication pipeline, and convenient to use, the utility model discloses the result is simple and reasonable, the position that the piston stopped when having avoided observing the scale of pipette simultaneously through artifical pulling piston and getting quantitative liquid can's the position can't coincide completely and lead to the quantitative liquid deviation appear and cause the liquid that the experiment needs to get the volume not to get Accurate, promoted the result precision of experiment, reduced user's trouble, had extremely strong practicality.
Drawings
Fig. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is an exploded view of the limiting wicking assembly of the present invention;
fig. 3 is a front cross-sectional view provided by the present invention;
fig. 4 is a schematic structural view of a sealing assembly according to embodiment 2 of the present invention;
in the figure: the device comprises a liquid suction pipe 1, a first scale meter 2, a liquid inlet pipeline 3, a communicating pipeline 4, a liquid collecting pipe 5, a movable cross rod 6, a sliding piston 7, a connecting vertical plate 8, a sealing circular plate 9, a movable pull rod 10, a limiting circular ring 11, a sliding vertical plate 12, a limiting vertical sleeve 13, a screw knob 14, a sealing gasket 15, a screw cap 16, a movable screw sleeve 17, a limiting circular plate 18, a limiting clamping block 19 and a movable circular plate 20.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1:
referring to the attached drawings 1-3, the utility model provides a self-priming quantitative pipette, including pipette 1, the outside of pipette 1 is fixedly connected with first graduation apparatus 2, the bottom of pipette 1 is fixedly connected with feed liquor pipeline 3, the bottom of one side of pipette 1 is fixedly connected with connecting horizontal pipe, the end of connecting horizontal pipe far away from pipette 1 is equipped with communicating pipeline 4, the end of communicating pipeline 4 far away from pipette 1 is fixedly connected with collecting tube 5, the outside of collecting tube 5 is fixedly connected with second graduation apparatus, the top of collecting tube 5 is equipped with sealing component, the top of pipette 1 is equipped with spacing imbibition component;
the limiting liquid suction assembly comprises a movable cross rod 6, a sliding piston 7 and a connecting vertical plate 8, the top of the liquid suction pipe 1 is fixedly connected with a sealing circular plate 9, the movable cross rod 6 is positioned at the top of the sealing circular plate 9, the bottom of the movable cross rod 6 is fixedly connected with a movable pull rod 10, the sliding piston 7 is positioned at the bottom of the movable pull rod 10, the top of the sliding piston 7 is provided with a limiting circular ring 11, the limiting circular ring 11 is in sliding connection with the inner side of the liquid suction pipe 1, the top of the limiting circular ring 11 is provided with a sliding vertical plate 12, the top of the connecting vertical plate 8 is fixedly connected with a connecting block, the bottom of the connecting block far away from the connecting vertical plate 8 is fixedly connected with the sliding vertical plate 12, the outer side of the bottom of the connecting vertical plate 8 is provided with a limiting vertical sleeve 13, the limiting vertical sleeve 13 is fixedly connected with the liquid suction pipe 1, and the surface of the connecting vertical plate 8 far away from the bottom of the liquid suction pipe 1 is provided with a limiting vertical groove, the side, far away from the connecting vertical plate 8, of the vertical limiting sleeve 13 is provided with a screw knob 14, and the surface of one side of the vertical limiting sleeve 13 is provided with a threaded hole.
Further, the sealing assembly comprises a sealing gasket 15, the sealing gasket 15 is located at the top of the liquid collecting pipe 5, the sealing gasket 15 is in threaded connection with the top of the liquid collecting pipe 5, a movable cover is fixedly connected to the top of the sealing gasket 15, a screw cap 16 is fixedly connected to the top of the movable cover, the liquid collecting pipe 5 is sealed through the sealing gasket 15, when the liquid collecting pipe 5 needs to be opened, the screw cap 16 is directly rotated to drive the movable cover and the sealing gasket 15 to rotate simultaneously, the sealing gasket 15 is screwed off, and then liquid in the liquid collecting pipe 5 is used for carrying out an experiment;
furthermore, one end of the communicating pipeline 4, which is close to the connecting horizontal pipe, is in threaded connection with a movable threaded sleeve 17, the movable threaded sleeve 17 is in threaded connection with the connecting horizontal pipe, and the communicating pipeline 4 is communicated with the connecting horizontal pipe through the movable threaded sleeve 17, so that the liquid can be taken out conveniently by disassembling;
further, the movable pull rod 10 penetrates through the sealing circular plate 9 and is fixedly connected with the sliding piston 7, the sliding piston 7 is slidably connected with the inner side of the pipette 1, and liquid is sucked into the pipette 1 by sliding the sliding piston 7 in the pipette 1;
furthermore, the sliding vertical plate 12 penetrates through the sealing circular plate 9 and is fixedly connected with the limiting circular ring 11, the connecting vertical plate 8 is located on one side, away from the movable cross rod 6, of the sliding vertical plate 12, the sliding vertical plate 12 is pushed to push the limiting circular ring 11 to move, the limiting circular ring 11 moves to the top of a required liquid scale, and then the rotary screw knob 14 is matched with the limiting vertical groove through a threaded hole, so that the connecting vertical plate 8 and the sliding vertical plate 12 are fixed, and the sliding piston 7 can be conveniently pulled to the bottom of the limiting circular ring 11 to limit, and cannot deviate;
further, the quantity of screw hole sets up to a plurality ofly, and is a plurality of the screw hole is vertical array distribution, screw knob 14 and screw hole threaded connection, screw knob 14 runs through screw hole and spacing perpendicular groove phase-match.
The utility model discloses a use as follows: when the utility model is used, firstly, according to the amount of the required liquid, the first dial gauge 2 is observed to select the accurate scale mark, then the sliding vertical plate 12 is pushed, the sliding vertical plate 12 pushes the limit ring 11 to move, the limit ring 11 moves to a distance from the top of the required liquid scale, the distance of the thickness of the sliding piston 7 is just left, when the sliding piston 7 contacts with the limit ring 11, the bottom of the sliding piston 7 is just level with the required liquid scale mark, the sliding vertical plate 12 moves to drive the connecting block to move at the same time, the connecting block drives the connecting vertical plate 8 to move inside the limit vertical sleeve 13, then the screw knob 14 is rotated, the screw knob 14 is matched with the limit vertical groove through the threaded hole, so that the connecting vertical plate 8 and the sliding vertical plate 12 are fixed on the pipette 1, then the movable cross rod 6 is pulled to drive the movable pull rod 10 to move, the movable pull rod 10 drives the sliding piston 7 to move inside the pipette 1, absorb quantitative liquid through inlet channel 3, the liquid of absorption is through connecting violently pipe entering communicating pipe 4, collects in carrying out collector tube 5 from communicating pipe 4, prepares for following experiment.
Example 2:
referring to the attached drawing 4, the utility model provides a pair of from inhaling quantitative pipette, the difference with embodiment 1 is, sealing assembly includes spacing plectane 18, spacing plectane 18 is located 5 tops of collector tube, spacing draw-in groove has all been seted up at spacing plectane 18 bottom both ends, the equal fixedly connected with in the inboard both ends in 5 tops of collector tube spacing fixture block 19, spacing fixture block 19 and spacing draw-in groove phase-match, 18 top fixedly connected with movable disc 20 of spacing plectane, 20 top fixedly connected with arc boards of movable disc.
The using process is as follows: in use the utility model discloses the time, drive movable pull rod 10 motion through pulling activity horizontal pole 6, movable pull rod 10 drives sliding piston 7 and moves in pipette 1 inboard, absorb quantitative liquid through inlet channel 3, the liquid of absorption is violently managed through connecting and is got into communicating pipe 4, collect in carrying out collector tube 5 from communicating pipe 4, after collecting the completion, rotatory movable swivel nut 17 takes place the separation with communicating pipe 4, take off collector tube 5 and communicating pipe 4, when the collector tube 5 is opened to needs, direct pulling arc plate, the arc plate drives movable circular plate motion, movable disc 20 drives spacing plectane 18 motion, spacing draw-in groove and the spacing fixture block 19 of spacing plectane 18 take place the separation, take off spacing plectane 18, take out the liquid of collection after that and experiment, convenient operation is swift, the trouble of user at the absorption ration liquid has been reduced.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (7)
1. A self-priming quantitative pipette comprising a pipette (1) characterized in that: the outer side of the liquid suction pipe (1) is fixedly connected with a first scale meter (2), the bottom of the liquid suction pipe (1) is fixedly connected with a liquid inlet pipeline (3), the bottom of one side of the liquid suction pipe (1) is fixedly connected with a connecting transverse pipe, one end, away from the liquid suction pipe (1), of the connecting transverse pipe is provided with a communicating pipeline (4), one end, away from the liquid suction pipe (1), of the communicating pipeline (4) is fixedly connected with a liquid collecting pipe (5), the outer side of the liquid collecting pipe (5) is fixedly connected with a second scale meter, the top of the liquid collecting pipe (5) is provided with a sealing assembly, and the top of the liquid suction pipe (1) is provided with a limiting liquid suction assembly;
the limiting liquid suction assembly comprises a movable cross rod (6), a sliding piston (7) and a connecting vertical plate (8), the top of the liquid suction pipe (1) is fixedly connected with a sealing circular plate (9), the movable cross rod (6) is positioned at the top of the sealing circular plate (9), the bottom of the movable cross rod (6) is fixedly connected with a movable pull rod (10), the sliding piston (7) is positioned at the bottom of the movable pull rod (10), the top of the sliding piston (7) is provided with a limiting circular ring (11), the limiting circular ring (11) is in sliding connection with the inner side of the liquid suction pipe (1), the top of the limiting circular ring (11) is provided with a sliding vertical plate (12), the top of the connecting vertical plate (8) is fixedly connected with a connecting block, the bottom of one side of the connecting block, far away from the connecting vertical plate (8), is fixedly connected with the sliding vertical plate (12), and the outer side of the bottom of the connecting vertical plate (8) is provided with a limiting vertical sleeve (13), spacing perpendicular cover (13) and pipette (1) fixed connection, connecting riser (8) keep away from pipette (1) bottom side surface and seted up spacing perpendicular groove, spacing perpendicular cover (13) keep away from connecting riser (8) one side and are equipped with screw knob (14), spacing perpendicular cover (13) one side surface sets up threaded hole.
2. The self-priming quantitative pipette of claim 1, wherein: the sealing assembly comprises a sealing gasket (15), the sealing gasket (15) is located at the top of the liquid collecting pipe (5), the sealing gasket (15) is in threaded connection with the top of the liquid collecting pipe (5), a movable cover is fixedly connected to the top of the sealing gasket (15), and a screw cap (16) is fixedly connected to the top of the movable cover.
3. The self-priming quantitative pipette of claim 1, wherein: one end, close to the connecting transverse pipe, of the communicating pipeline (4) is in threaded connection with a movable threaded sleeve (17), and the movable threaded sleeve (17) is in threaded connection with the connecting transverse pipe.
4. The self-priming quantitative pipette of claim 1, wherein: the movable pull rod (10) penetrates through the sealing circular plate (9) and is fixedly connected with the sliding piston (7), and the sliding piston (7) is in sliding connection with the inner side of the pipette (1).
5. The self-priming quantitative pipette of claim 1, wherein: the sliding vertical plate (12) penetrates through the sealing circular plate (9) and is fixedly connected with the limiting circular ring (11), and the connecting vertical plate (8) is located on one side, away from the movable cross rod (6), of the sliding vertical plate (12).
6. The self-priming quantitative pipette of claim 1, wherein: the quantity of screw hole sets up to a plurality ofly, and is a plurality of the screw hole is vertical array distribution, screw knob (14) and screw hole threaded connection, screw knob (14) run through the screw hole and spacing perpendicular groove phase-match.
7. The self-priming quantitative pipette of claim 1, wherein: the sealing assembly comprises a limiting circular plate (18), the limiting circular plate (18) is located at the top of the liquid collecting pipe (5), limiting clamping grooves are formed in two ends of the bottom of the limiting circular plate (18), limiting clamping blocks (19) are fixedly connected to two ends of the inner side of the top of the liquid collecting pipe (5), the limiting clamping blocks (19) are matched with the limiting clamping grooves, a movable circular plate (20) is fixedly connected to the top of the limiting circular plate (18), and an arc plate is fixedly connected to the top of the movable circular plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782852.4U CN214681807U (en) | 2020-11-27 | 2020-11-27 | Self-suction quantitative pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782852.4U CN214681807U (en) | 2020-11-27 | 2020-11-27 | Self-suction quantitative pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214681807U true CN214681807U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022782852.4U Active CN214681807U (en) | 2020-11-27 | 2020-11-27 | Self-suction quantitative pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214681807U (en) |
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2020
- 2020-11-27 CN CN202022782852.4U patent/CN214681807U/en active Active
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