CN207102632U - Transfer pipette for chemical tests - Google Patents
Transfer pipette for chemical tests Download PDFInfo
- Publication number
- CN207102632U CN207102632U CN201720461797.4U CN201720461797U CN207102632U CN 207102632 U CN207102632 U CN 207102632U CN 201720461797 U CN201720461797 U CN 201720461797U CN 207102632 U CN207102632 U CN 207102632U
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- CN
- China
- Prior art keywords
- piston
- chemical tests
- transfer pipette
- push
- feed tube
- Prior art date
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Abstract
The utility model discloses a kind of transfer pipette for chemical tests, including：Body, push rod, piston, push and pull bar, range sensor and display, body is cylinder, the piston of quality of rubber materials is arranged on the inside of body, and the inwall of piston and body is brought into close contact, one end of push rod and piston are affixed, the other end is affixed with push and pull bar, and the central shaft of push rod and the center overlapping of axles of body, range sensor is arranged on the lower surface of push and pull bar, the side of body is provided with the display being engaged with range sensor, and the upper surface of display and the upper surface of body are flush, the lower end of body is provided with feed tube, feed tube is connected with body, the lower surface of piston is provided with the projection being engaged with feed tube.The transfer pipette for chemical tests overcomes the pipette used in the prior art general and ear washing bulb is used cooperatively, but the problem of quantitative solution can not be taken out exactly.
Description
Technical field
Instruments of inspection field is the utility model is related to, in particular it relates to a kind of transfer pipette for chemical tests.
Background technology
Pipette is the measuring device for accurately pipetting the solution of certain volume, is that one kind measures formula instrument, is only used for measuring
It releases the volume of solution, is the glass apparatus commonly used in biochemical test.Common pipette is a slender glass tube, lower end
Sharp mouth shape, pipe shaft have uniform scale.When using common pipette, pipette needs to be used cooperatively with ear washing bulb, passes through extruding
Ear washing bulb sucks solution in pipette, and the volume of solution is relevant with the extruding degree of ear washing bulb in suction pipette, due to washing
The extruding degree of ear ball is difficult to accurately hold, and when the degree of extruding is excessive, the solution of suction is possible to overflow pipette, causes portion
Solution is divided to enter in ear washing bulb, when the degree of extruding is inadequate, the liquid level of solution does not reach requirement, it is necessary to re-operates, utilizes
Liquid level of solution is also very inaccurate in ear washing bulb regulation pipette.
Therefore it provides it is a kind of easy to use, and the transfer pipette for chemical tests of quantitative solution can be squeezed out exactly
The problem of being the utility model urgent need to resolve.
Utility model content
For above-mentioned technical problem, the purpose of this utility model is to overcome the pipette used in the prior art typically and wash
Ear ball is used cooperatively, but the problem of quantitative solution can not be taken out exactly, it is a kind of easy to use so as to provide, and can be accurate
Really squeeze out the transfer pipette for chemical tests of quantitative solution.
To achieve these goals, the utility model provides a kind of transfer pipette for chemical tests, and the chemical analysis is used
Pipette includes：Body, push rod, piston, push and pull bar, range sensor and display, the body are cylinder, rubber material
The piston of matter is arranged on the inside of the body, and the inwall of the piston and the body is brought into close contact, the push rod
One end and the piston it is affixed, the other end and the push and pull bar are affixed, and the central shaft of the push rod and the body
Center overlapping of axles, the range sensor are arranged on the lower surface of the push and pull bar, and the side of the body is provided with and institute
The display that range sensor is engaged is stated, and the upper surface of the display and the upper surface of the body are flush, it is described
The lower end of body is provided with feed tube, and the feed tube is connected with the body, and the lower surface of the piston is provided with and institute
State the projection that feed tube is engaged.
Preferably, the side of the body is additionally provided with drive mechanism, is provided with and is matched therewith in the drive mechanism
Piston rod, the upper end of the piston rod and the lower surface of the push and pull bar are affixed, and the side of the body is additionally provided with
The adjuster being engaged with the drive mechanism.
Preferably, the transfer pipette for chemical tests also includes catheter, the upper end of the catheter and the feed tube
To be detachably connected, the lower end of the catheter is arranged to sharp mouth shape.
Preferably, the upper end of the catheter is that buckle-type is connected with the feed tube.
Preferably, the upper end of the catheter is connected with the feed tube by emulsion tube.
Preferably, the side of the feed tube is provided with piston switch.
Preferably, the side of the body and the catheter is both provided with graduation mark.
According to above-mentioned technical proposal, transfer pipette for chemical tests provided by the utility model is by being arranged in the body
Push rod and piston coordinate the liquid quantitative in the body picked and placeed, wherein, the body that the utility model uses for
Cylinder, then the diameter of section of the body be certain, by controlling what the push rod moved to draw liquid apart from can
Discharging amount, accurately draw the displacement of the push rod in the utility model using the range sensor, it is described away from
From sensor measurement with a distance from for the push and pull bar lower surface to the distance of the body upper surface, then pass through the display
Device shows the distance of measurement staff is by controlling the displacement can of the push rod to control the releasing of liquid
Amount, transfer pipette for chemical tests of the present utility model overcomes the pipette used in the prior art general and ear washing bulb cooperation makes
With, but the problem of quantitative solution can not be taken out exactly.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation of the transfer pipette for chemical tests provided under a kind of preferred embodiment of the present utility model
Figure；
Fig. 2 is the profile of the transfer pipette for chemical tests provided under a kind of preferred embodiment of the present utility model.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
In the utility model, in the case where not making opposite explanation, " upper and lower, inside and outside " etc. is included in the side in term
Position word only represent orientation of the term under normal service condition, or be skilled artisan understands that be commonly called as, without that should regard
For the limitation to the term.
As described in Fig. 1-2, the utility model provides a kind of transfer pipette for chemical tests, the transfer pipette for chemical tests
Including：Body 1, push rod 2, piston 4, push and pull bar 3, range sensor and display 6, the body 1 are cylinder, rubber material
The piston 4 of matter is arranged on the inside of the body 1, and the inwall of the piston 4 and the body 1 is brought into close contact, described
One end of push rod 2 and the piston 4 are affixed, and the other end and the push and pull bar 3 are affixed, and the central shaft of the push rod 2 and institute
The center overlapping of axles of body 1 is stated, the range sensor is arranged on the lower surface of the push and pull bar 3, the side of the body 1
Face is provided with the display 6 being engaged with the range sensor, and the upper surface of the display 6 and the body 1 is upper
Surface is flush, and the lower end of the body 1 is provided with feed tube 11, and the feed tube 11 is connected with the body 1, the work
The lower surface of plug 4 is provided with the projection 10 being engaged with the feed tube 11.
According to above-mentioned technical proposal, transfer pipette for chemical tests provided by the utility model is by being arranged on the body 1
In push rod 2 and piston 4 coordinate the liquid quantitative in the body 1 picked and placeed, wherein, the pipe that the utility model uses
Body 1 is cylinder, then the diameter of section of the body 1 is certain, by controlling that the push rod 2 moves apart from can
Draw the discharging amount of liquid, accurately drawn using the range sensor in the utility model the movement of the push rod 2 away from
From the distance of the range sensor measurement is the distance of the lower surface of push and pull bar 3 to the upper surface of body 1, then
The distance of measurement is shown by the display 6, staff is by controlling the displacement can of the push rod 2
Control the discharging amount of liquid, transfer pipette for chemical tests of the present utility model overcome the pipette that uses in the prior art typically and
Ear washing bulb is used cooperatively, but the problem of quantitative solution can not be taken out exactly.
In the utility model, the push and pull bar can be adjusted manually, but certain error manually be present, in this practicality
In a kind of new preferred embodiment, the side of the body 1 is additionally provided with drive mechanism 5, is set in the drive mechanism 5
The piston rod 7 being matched therewith is equipped with, the upper end of the piston rod 7 and the lower surface of the push and pull bar 3 are affixed, and the pipe
The side of body 1 is additionally provided with the adjuster 13 being engaged with the drive mechanism 5, and when in use, the drive mechanism 5 drives institute
State piston rod 7 and carry out stretching motion, so as to drive the push and pull bar to move, the adjuster 13 is used to control the piston rod
7 flexible length, so as to be indirectly controlled the distance of the push and pull bar motion, drive mechanism 5 described in the utility model can
With with miniature hydraulic pump.
The diameter of feed tube 11 described in the utility model is less than the diameter of the body 1, but the feed tube 11
Liquid is moved in target container by mouth of pipe inconvenience, so liquid relief for convenience, of the present utility model a kind of preferable real
Apply in mode, the transfer pipette for chemical tests also includes catheter 9, and the upper end of the catheter 9 is with the feed tube 11
It is detachably connected, the lower end of the catheter 9 is arranged to sharp mouth shape.
It is so convenient to be detachably connected between the upper end of catheter 9 described in the utility model and the feed tube 11
Catheter 9 described in dismounting and change, for example can be threaded connection etc., but in a kind of preferred embodiment of the present utility model
In, the upper end of the catheter 9 is that buckle-type is connected with the feed tube 11, snaps connection catheter described in more easy disassembly
9。
In a kind of preferred embodiment of the present utility model, the upper end of the catheter 9 is logical with the feed tube 11
Cross emulsion tube to be connected, so described catheter 9 and the sealing of the junction of feed tube 11 are ensured, and the breast
Sebific duct facilitates the catheter 9 to rotate, so as to the convenient direction for adjusting the liquid outlet of catheter 9.
In a kind of preferred embodiment of the present utility model, the side of the feed tube 11 is provided with piston switch
12, the piston switch 12 is used for the break-make for controlling the feed tube, so as to control the break-make of solution, prevents staff from moving
Solution flows out from the body 1 when dynamic.
In a kind of preferred embodiment of the present utility model, the side of the body 1 and the catheter 9 is all set
There is a graduation mark 8, the graduation mark 8 can facilitate staff clearly to connect the total amount of solution in the body 1.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (7)
1. a kind of transfer pipette for chemical tests, it is characterised in that the transfer pipette for chemical tests includes：Body (1), push rod
(2), piston (4), push and pull bar (3), range sensor and display (6), the body (1) are cylinder, quality of rubber materials
The piston (4) is arranged on the inside of the body (1), and the inwall of the piston (4) and the body (1) is brought into close contact,
One end of the push rod (2) and the piston (4) are affixed, and the other end and the push and pull bar (3) are affixed, and the push rod (2)
Central shaft and the body (1) center overlapping of axles, the range sensor is arranged on the following table of the push and pull bar (3)
Face, the side of the body (1) are provided with the display (6) being engaged with the range sensor, and the display (6)
The upper surface of upper surface and the body (1) is flush, and the lower end of the body (1) is provided with feed tube (11), the feed liquor
Pipe (11) be connected with the body (1), the lower surface of the piston (4) be provided be engaged with the feed tube (11) it is convex
Rise (10).
2. transfer pipette for chemical tests according to claim 1, it is characterised in that the side of the body (1) is also set up
Have drive mechanism (5), be provided with the piston rod (7) being matched therewith on the drive mechanism (5), the piston rod (7) it is upper
End is affixed with the lower surface of the push and pull bar (3), and the side of the body (1) is additionally provided with and the drive mechanism (5)
The adjuster (13) being engaged.
3. transfer pipette for chemical tests according to claim 1, it is characterised in that the transfer pipette for chemical tests also wraps
Catheter (9) is included, upper end and the feed tube (11) of the catheter (9) are to be detachably connected, under the catheter (9)
End is arranged to sharp mouth shape.
4. transfer pipette for chemical tests according to claim 3, it is characterised in that the upper end of the catheter (9) and institute
Feed tube (11) is stated to connect for buckle-type.
5. transfer pipette for chemical tests according to claim 3, it is characterised in that the upper end of the catheter (9) and institute
Feed tube (11) is stated by emulsion tube to be connected.
6. transfer pipette for chemical tests according to claim 1, it is characterised in that the side of the feed tube (11) is set
There is piston switch (12).
7. transfer pipette for chemical tests according to claim 3, it is characterised in that the body (1) and the catheter
(9) side is both provided with graduation mark (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720461797.4U CN207102632U (en) | 2017-04-24 | 2017-04-24 | Transfer pipette for chemical tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720461797.4U CN207102632U (en) | 2017-04-24 | 2017-04-24 | Transfer pipette for chemical tests |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207102632U true CN207102632U (en) | 2018-03-16 |
Family
ID=61596753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720461797.4U Expired - Fee Related CN207102632U (en) | 2017-04-24 | 2017-04-24 | Transfer pipette for chemical tests |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207102632U (en) |
-
2017
- 2017-04-24 CN CN201720461797.4U patent/CN207102632U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190424 |