CN205199535U - Take glass piston's scale to inhale buret - Google Patents
Take glass piston's scale to inhale buret Download PDFInfo
- Publication number
- CN205199535U CN205199535U CN201520894699.0U CN201520894699U CN205199535U CN 205199535 U CN205199535 U CN 205199535U CN 201520894699 U CN201520894699 U CN 201520894699U CN 205199535 U CN205199535 U CN 205199535U
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- section
- mouth
- scale
- intercommunicating pore
- pipe section
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Abstract
The utility model relates to an inhale buret technical field, concretely relates to take glass piston's scale to inhale buret. It is including constructing into cylindrical body, and the body is used for and washes the cooperation of ear ball including the mouth of pipe section, stock solution section and the scale section that connect gradually, the tip of mouth of pipe section, and the stock solution section is constructed into cylindricly, and scale section outer wall is equipped with the scale, mouth of pipe section internal structure has spherical piston chamber, and first intercommunicating pore and second intercommunicating pore have been constructed respectively along the body axial to piston chamber outer wall, be equipped with to the airtight cooperation of piston intracavity orbed glass piston, the structure has the direct current way through the centre of sphere in the glass piston, and the direct current way is used for cooperating with first intercommunicating pore and second intercommunicating pore, mouth of pipe section lateral wall along radially be equipped with with the commentaries on classics hole of piston chamber intercommunication, glass piston is last to be connected with and to say the vertically pivot with the direct current, mouth of pipe section is stretched out behind the hole through changeing to the pivot. The utility model discloses novel structure, the constant volume is accurate.
Description
Technical field
The present invention relates to pipette technical field, specifically, relate to a kind of graduated pipette with glass piston.
Background technology
Pipette is the common instrument in the laboratories, field such as chemistry, chemical industry, medicine, environmental protection.Pipette of the prior art mostly is the straight shape glass tube of up/down perforation, ear washing bulb is utilized to insert the pipette upper end mouth of pipe imbitition during use, due to the effect of pipe inside and outside differential pressure, liquid enters in pipe by pipette lower end, when the intraluminal fluid scale of construction is enough, take away ear washing bulb and block the mouth of pipe with finger again, slowly reduce liquid level to the amount needed by moveable finger, then move in the container that adds.Prior art Problems existing is: it is wayward to get liquid measure, ear washing bulb move away to adopt finger block time, liquid decline easily cause quantity not sufficient rapidly, or by the control of moveable finger realize absorption quantitative liquid object, high to the skill set requirements of operator, be not easy to grasp; When getting hypervolia, liquid suction ear washing bulb is easily made to cause the pollution of ear washing bulb and liquid.
Summary of the invention
Content of the present invention is to provide a kind of graduated pipette with glass piston, and it can overcome certain or some defect of prior art.
According to a kind of graduated pipette with glass piston of the present invention, it comprises the pillared body of structure, and body comprises the mouth of pipe section, liquid storage section and the scale section that connect successively, and the end of mouth of pipe section is used for coordinating with ear washing bulb, liquid storage section is configured to cylindric, and scale section outer wall is provided with scale; Mouth of pipe intersegmental part is configured with spherical plunger shaft, and plunger shaft outer wall is axially configured with the first intercommunicating pore and the second intercommunicating pore respectively along body; Be provided with spherical glass piston in plunger shaft close fit, be configured with the straight channel by the centre of sphere in glass piston, straight channel is used for coordinating with the first intercommunicating pore and the second intercommunicating pore; Mouth of pipe section sidewall be radially provided be communicated with plunger shaft turn hole, glass piston is connected with the rotating shaft vertical with straight channel, rotating shaft stretches out mouth of pipe section after turning hole.
When adopting graduated pipette of the present invention to carry out getting liquid operation, can at the sheathed ear washing bulb in the port of mouth of pipe section, and can rotating shaft be aimed at by the straight channel on glass piston with the first intercommunicating pore and the second intercommunicating pore, the port of scale section is inserted in the required solution gathered simultaneously, preferably by extruding ear washing bulb, above-mentioned solution can be sucked in body.In addition, the setting of liquid storage section, preferably make when excessive compression ear washing bulb, above-mentioned solution can not be inhaled in ear washing bulb, thus preferably avoids because of misoperation above-mentioned solution generation pollution.
After adopting graduated pipette of the present invention to complete to get liquid operation, straight channel can be staggered with the first intercommunicating pore and the second intercommunicating pore by rotating shaft, thus make when taking-up ear washing bulb, the solution in body can not flow out.After taking-up ear washing bulb, rotating shaft gradually can be passed through, first intercommunicating pore is communicated with by straight channel gradually with the second intercommunicating pore, thus the solution in body can be flowed out, and can preferably to the outflow of solution whether and the rate of outflow control, thus be convenient to user measures aequum solution by scale.
Although also there is the mode arranging similar piston on pipette in prior art, but piston of the prior art is by realizing the switching of tubular body runner along body radial motion, this just makes, the shake back and forth of body can be caused in the process of piston movement, thus inevitably the solution in body is thrown away, and then make to measure inaccurate.And the mode turn piston of the present invention by rotating, just can preferably the problems referred to above.
On the other hand, because the liquid object of getting of graduated pipette has strong or weak corrosivity mostly, and the present invention is by adopting the glass piston of glass material, just preferably can reduce and get the corrosion of liquid object to glass piston, ensure that can be more lasting between glass piston and plunger shaft be sealed and matched.
As preferably, scale section end bore reduces gradually and is configured to nozzle section.
Scale section end of the present invention bore can reduce gradually thus be configured to nozzle section, by nozzle section is configured to inverted cone-shaped, makes body can preferably draw solution.
As preferably, the internal diameter of liquid storage section is 2 ~ 3 times of scale section internal diameter.
The internal diameter of liquid storage section of the present invention can be 2 ~ 3 times of scale section internal diameter, thus makes liquid storage section can possess preferably while capacity, also body will be caused frangible because liquid storage section crosses thick.In addition, liquid storage section of the present invention can be configured to cylindric, and this makes when storing the solution of same volume, and the solution in columned structure is larger than the gravitional force of the solution in other spheroidal structure, thus is convenient to the outflow of liquid storage intersegmental part solution.
As preferably, rotating shaft outer end is provided with runner.
Rotating shaft outer end of the present invention can be provided with runner, thus can preferably be convenient to user's rotating shaft.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of graduated pipette in embodiment 1;
Fig. 2 is the enlarged diagram of part A in Fig. 1.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.Should be understood that, embodiment is only to make an explanation to the present invention and and non-limiting.
Embodiment 1
As shown in Figure 1 and Figure 2, present embodiments provide a kind of graduated pipette with glass piston, it comprises the pillared body 100 of structure.Wherein, body 100 comprises the mouth of pipe section 110, liquid storage section 120 and the scale section 130 that connect successively, and the end of mouth of pipe section 110 is used for coordinating with ear washing bulb, and liquid storage section 120 is configured to cylindric, and scale section 130 outer wall is provided with scale 131; Mouth of pipe section 110 internal structure has spherical plunger shaft 210, and plunger shaft 210 outer wall is axially configured with the first intercommunicating pore 211 and the second intercommunicating pore 212 respectively along body 100; Be provided with spherical glass piston 220 in plunger shaft 210 close fit, be configured with the straight channel 221 by the centre of sphere in glass piston 220, straight channel 221 is for coordinating with the first intercommunicating pore 211 and the second intercommunicating pore 212; Mouth of pipe section 110 sidewall be radially provided be communicated with plunger shaft 210 turn hole 213, glass piston 220 is connected with the rotating shaft 230 vertical with straight channel 221, rotating shaft 230 stretches out mouth of pipe section 110 after turning hole 213.
In the present embodiment, glass piston 220 is arranged in plunger shaft 210 by molten earthing mode, and scale section 130 end bore reduces gradually and is configured to nozzle section 140, and the internal diameter of liquid storage section 120 is 2 times of scale section 130 internal diameter, and rotating shaft 230 outer end is provided with runner 240.
The graduated pipette of the present embodiment coordinate with ear washing bulb carry out getting liquid time, ear washing bulb is enclosed within upper shed place of mouth of pipe section 110, turn runner 240, the straight channel 221 on glass piston 220 is made to be communicated with the first intercommunicating pore 211 and the second intercommunicating pore 212, afterwards by nozzle section 140 deeply required solution, extruding ear washing bulb, preferably can complete and get liquid operation.
The graduated pipette of the present embodiment is when carrying out constant volume, first turn runner 240, straight channel 221 on glass piston 220 is staggered with the first intercommunicating pore 211 and the second intercommunicating pore 212, remove ear washing bulb afterwards, afterwards, turn runner 240, first intercommunicating pore 211 is communicated with gradually with the second intercommunicating pore 212, solution in body 100 being flowed out gradually, simultaneously by observing scale 131, getting final product the solution that preferred amount of gets aequum.
Embodiment 2
The present embodiment also provides a kind of graduated pipette with glass piston, and the difference of itself and embodiment 1 is: the internal diameter of liquid storage section 120 is 3 times of scale section 130 internal diameter.
In addition, in the present embodiment, the first intercommunicating pore 211 is identical with the aperture of the second intercommunicating pore 212 and be the half in mouth of pipe section 110 aperture.
Below be schematically described the present invention and embodiment thereof, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should protection scope of the present invention be belonged to.
Claims (4)
1. the graduated pipette with glass piston, comprise the pillared body of structure (100), it is characterized in that: body (100) comprises the mouth of pipe section (110), liquid storage section (120) and the scale section (130) that connect successively, the end of mouth of pipe section (110) is used for coordinating with ear washing bulb, liquid storage section (120) is configured to cylindric, and scale section (130) outer wall is provided with scale (131); Mouth of pipe section (110) internal structure has spherical plunger shaft (210), and plunger shaft (210) outer wall is axially configured with the first intercommunicating pore (211) and the second intercommunicating pore (212) respectively along body (100); Be provided with spherical glass piston (220) plunger shaft (210) interior close fit, be configured with the straight channel (221) by the centre of sphere in glass piston (220), straight channel (221) is for coordinating with the first intercommunicating pore (211) and the second intercommunicating pore (212); Mouth of pipe section (110) sidewall be radially provided be communicated with plunger shaft (210) turn hole (213), glass piston (220) is connected with the rotating shaft (230) vertical with straight channel (221), rotating shaft (230) stretches out mouth of pipe section (110) after turning hole (213).
2. graduated pipette according to claim 1, is characterized in that: scale section (130) end bore reduces gradually and is configured to nozzle section (140).
3. graduated pipette according to claim 2, is characterized in that: the internal diameter of liquid storage section (120) is 2 ~ 3 times of scale section (130) internal diameter.
4. graduated pipette according to claim 3, is characterized in that: rotating shaft (230) outer end is provided with runner (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894699.0U CN205199535U (en) | 2015-11-11 | 2015-11-11 | Take glass piston's scale to inhale buret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894699.0U CN205199535U (en) | 2015-11-11 | 2015-11-11 | Take glass piston's scale to inhale buret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205199535U true CN205199535U (en) | 2016-05-04 |
Family
ID=55837280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894699.0U Expired - Fee Related CN205199535U (en) | 2015-11-11 | 2015-11-11 | Take glass piston's scale to inhale buret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205199535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442684A (en) * | 2016-08-15 | 2017-02-22 | 大连医科大学 | Dimensional-electrophoresis adhesive-tape-hydration-sealing-layer quantitative oil dropping device |
| CN110174252A (en) * | 2019-05-21 | 2019-08-27 | 中国民用航空飞行学院 | High-pressure water mist spray head mist throughput assay |
-
2015
- 2015-11-11 CN CN201520894699.0U patent/CN205199535U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442684A (en) * | 2016-08-15 | 2017-02-22 | 大连医科大学 | Dimensional-electrophoresis adhesive-tape-hydration-sealing-layer quantitative oil dropping device |
| CN106442684B (en) * | 2016-08-15 | 2018-10-19 | 大连医科大学 | Dielectrophoresis adhesive tape aquation sealing quantitative oil-dropping device |
| CN110174252A (en) * | 2019-05-21 | 2019-08-27 | 中国民用航空飞行学院 | High-pressure water mist spray head mist throughput assay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |