CN107469718B - Stirring rod - Google Patents
Stirring rod Download PDFInfo
- Publication number
- CN107469718B CN107469718B CN201710757601.0A CN201710757601A CN107469718B CN 107469718 B CN107469718 B CN 107469718B CN 201710757601 A CN201710757601 A CN 201710757601A CN 107469718 B CN107469718 B CN 107469718B
- Authority
- CN
- China
- Prior art keywords
- stirring
- stirrer
- center
- liquid
- stirring body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 85
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000696 magnetic material Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
The invention provides a stirrer, which comprises: the stirring body is in a circular dish shape, plastic materials are adopted, and the surfaces of the upper surface and the lower surface of the stirring body are in convex arc shapes; the magnet is arranged on the stirring body, the stirring body and the magnet are spliced and fixed in a hot melting way, wherein, the stirring rod moves upwards from the bottom of the stirring liquid to the liquid surface along with the increase of the rotating speed. Therefore, when the stirrer is used for stirring, the loss of the stirrer body caused by excessive friction between the lower surface of the stirrer and the bottom of the stirring tank body is effectively avoided, the service life of the stirrer is prolonged; on the other hand, the stirring sub-surface is symmetrically provided with the convex parts or the concave parts, so that the pressure difference existing near the upper surface and the lower surface of the stirring sub-can be effectively reduced under the vacuum or high-pressure condition, the stirring effect of the stirring sub-can be ensured under the vacuum or high-pressure condition, and the uniformity of stirring liquid under the vacuum or high-pressure condition is improved.
Description
Technical Field
The invention relates to the technical field of stirrers, in particular to a stirrer which can reduce local pressure difference of the upper surface and the lower surface of the stirrer, so that the stirrer can run more stably and is suitable for stirring in a high-pressure or vacuum environment.
Background
The magnetic stirrer is a common experimental instrument for experiments in the fields of biology, chemistry, medicine and the like, and is convenient and quick to heat and stir. The stirring speed can be controlled by machine regulation by only throwing the stirrer into the liquid to be stirred. The principle is that one stirrer is arranged inside, a magnetic material is fixed on a rotor of a motor, the magnetic material rotates along with the rotation of the rotor of the motor when the motor is started, the stirrer consists of a core body of the magnetic material and a high polymer material wrapped outside, and the magnetic material at the bottom of the magnetic stirrer drives the stirrer to rotate when the magnetic material at the bottom of the magnetic stirrer rotates, so that the stirring purpose is achieved.
In the prior art, most of the stirring rods are rod-shaped or olive-shaped, and the stirring rods can be stably rotated and stirred due to the shape. However, in long-term experiments and in the use process, the stirrer is usually positioned at the bottom of the liquid below the liquid level in the stirring process and is often in direct contact with the bottom of the stirring tank body, so that friction exists between the stirrer and the bottom of the tank body during stirring, and the high-molecular materials outside the stirrer are worn due to the fact that the stirrer rotates at a high speed, so that the service life of the stirrer is finally affected.
On the other hand, the stirring rod is single in result, so that the liquid stirring near the upper surface and the lower surface of the stirring rod is difficult to keep uniform, the stirring force of the liquid to be stirred near the lower surface is high in general, the energy consumption is high, the stirring force of the liquid to be stirred near the upper surface is low, and the energy consumption is low.
In view of the above, the stirrer in the prior art should be improved to solve the above two technical problems.
Disclosure of Invention
The invention aims to solve the technical problems, and aims to provide the stirrer which can reduce friction between the stirrer and the bottom of the stirring tank body, and particularly can ensure that the stirrer runs more stably under the condition of vacuum or high pressure, reduce the liquid pressure difference between the upper surface and the lower surface of the stirrer and prolong the service life.
In order to achieve the above object, the present invention provides a stirrer comprising: the stirring body is in a circular dish shape, is made of plastic material, and is provided with an upper surface and a lower surface which are symmetrical, wherein the surfaces of the upper surface and the lower surface of the stirring body are in an outwards convex arc shape; the magnet is arranged on the stirring body, the stirring body and the magnet are spliced and fixed in a hot melting mode, and the stirrer moves upwards from the bottom of stirring liquid to the liquid surface along with the increase of the rotating speed.
Preferably, the stirring body may be made of high-density polyethylene.
Preferably, a plurality of protruding parts can be arranged on the upper surface of the stirring body, and the protruding parts are symmetrically arranged around the circle center of the upper surface.
Preferably, the protruding portion may be disposed around the center of the upper surface and/or at the peripheral edge.
Preferably, an extension line of the center of the protrusion may intersect with a center line of the stirring body projected on a horizontal plane.
Preferably, a plurality of concave portions may be formed on the upper and lower surfaces of the stirring body, the concave portions being curved, the concave portions being disposed around the centers of the upper and lower surfaces.
Preferably, the center of the recess may coincide with the center of the projection of the stirring body on the horizontal plane.
According to the description and practice, the stirrer provided by the invention has a circular disc-shaped structure and very symmetrical upper and lower surfaces, and adopts high-density polyethylene as a material, so that when the stirrer is used for stirring, the stirrer can move upwards from the bottom of stirring liquid along with the increase of the rotating speed, the loss of the stirrer body caused by excessive friction between the lower surface of the stirrer and the bottom of the stirring tank body is effectively avoided, and the service life of the stirrer is prolonged; on the other hand, the stirrer is symmetrically provided with the convex parts or the concave parts on the surface of the stirrer, so that the pressure difference on the upper surface and the lower surface of the stirrer can be effectively reduced under the vacuum or high-pressure condition, the turbulence effect of the pressure difference on stirring liquid is relieved, the stirring effect of the stirrer can be ensured under the vacuum or high-pressure condition, and the uniformity of the stirring liquid under the vacuum or high-pressure condition is improved.
Drawings
Fig. 1 is a schematic view showing the structure of a stirrer according to a first embodiment of the present invention;
fig. 2 is a schematic view showing the structure of a stirrer according to a second embodiment of the present invention;
fig. 3 is a plan view showing a plan view structure of the stirrer according to the second embodiment:
fig. 4 is a schematic view showing the structure of a stirrer according to a third embodiment of the present invention;
fig. 5 is a schematic view showing the structure of the stirrer described in the third embodiment.
Detailed Description
Embodiments of the stirrer according to the present invention will be described below with reference to the accompanying drawings. Those skilled in the art will recognize that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope. Furthermore, in the present specification, the drawings are not drawn to scale, and like reference numerals denote like parts.
Example 1
Fig. 1 is a schematic view showing the structure of a stirrer according to the first embodiment of the present invention, and as shown in the drawing, the stirrer according to the present invention includes a stirring body 10 and a magnet 1, where the stirring body 10 is in a circular dish shape, and has an upper surface 2 and a lower surface 3 which are symmetrical, and the surfaces of the upper surface 2 and the lower surface 3 are in an outer convex arc shape. The magnet 1 is disposed on the stirring body 10, and in this embodiment of the present invention, the stirring body 10 is made of high-density polyethylene, and the magnet 1 is spliced and fixed with the stirring body 10 by means of hot melting. In addition, since the upper surface 2 and the lower surface 3 of the stirring body 10 are symmetrically aligned, they may alternate with each other in actual use. When the stirring device is used, in an initial state, the stirrer is positioned at the bottom of the stirring liquid and is contacted with the bottom of the stirring tank body, and the stirrer gradually moves upwards from the bottom of the stirring tank body to the liquid level of the stirring liquid along with the increase of the rotation speed of the stirrer, so that the friction between the lower surface 3 of the stirrer and the bottom of the stirring tank body is effectively reduced.
Example two
The second embodiment is a further improved technical solution based on the first embodiment, so the same parts in the second embodiment as those in the first embodiment are denoted by the same names in the first embodiment, and the same numbers are denoted by the same reference numerals in the drawings, and the same parts in the second embodiment as those in the first embodiment are not repeated herein, and only the differences between the second embodiment and the first embodiment are described. Fig. 2 is a schematic view showing the structure of a stirrer according to a second embodiment of the present invention. Fig. 3 is a plan view showing a plan view of the stirrer according to the second embodiment. Referring to fig. 2 and 3, a plurality of protruding parts 4 are arranged on the upper surface 2 of the stirring body 10, the protruding parts 4 are symmetrically arranged around the center of the upper surface 2, the protruding parts 4 can be positioned at the periphery and/or the periphery edge of the center of the upper surface 2, and the extension line of the center of the protruding parts 4 is intersected with the central line of the projection of the stirring body 10 on the horizontal plane, so that the arrangement of the protruding parts 4 does not affect the rotation stability of the stirring rod, and the problem of small stirring force of stirring liquid near the upper surface 2 can be effectively solved. Referring to fig. 3, one possible arrangement of the protrusions 4 in this embodiment of the present invention is shown in fig. 3, but in other embodiments of the present invention, the protrusions 4 may be arranged around the center of the upper surface 2 in other patterns, and the embodiment of the present invention is not limited thereto.
Example III
The third embodiment is a further improved technical solution based on the first embodiment, so the same parts in the third embodiment as those in the first embodiment are denoted by the same names in the first embodiment, and the same numbers are denoted by the same reference numerals in the drawings, and the same parts in the third embodiment as those in the first embodiment are not repeated herein, and only the differences between the third embodiment and the first embodiment are described. Fig. 4 is a schematic view showing the structure of a stirrer according to a third embodiment of the present invention. Fig. 5 is a schematic view showing the structure of the stirrer described in the third embodiment. Referring to fig. 4 and 5, a plurality of concave portions 5 are formed on the upper surface 2 and the lower surface of the stirring body 10, the concave portions 5 are curved, the plurality of concave portions 5 are symmetrically arranged around the centers of the circles of the upper surface 2 and the lower surface 3, and the center of the convex portion 4 coincides with the center of the projection of the stirring body 10 on the horizontal plane, so that the influence on the rotation stability of the stirring rod of the invention is further reduced on the basis of the second embodiment, and meanwhile, the problem of small stirring force of stirring liquid near the upper surface 2 can be still effectively solved. Referring to fig. 3, one possible arrangement of the concave portion 5 in this embodiment of the present invention is shown in fig. 3, but in other embodiments of the present invention, the concave portion 5 may be disposed around the center of the upper surface 2 and the lower surface 3 in other patterns, and the embodiment of the present invention is not limited thereto.
According to the description and practice, the stirrer provided by the invention has a circular disc-shaped structure and very symmetrical upper and lower surfaces, and adopts high-density polyethylene as a material, so that when the stirrer is used for stirring, the stirrer can move upwards from the bottom of stirring liquid along with the increase of the rotating speed, the loss of the stirrer body caused by excessive friction between the lower surface of the stirrer and the bottom of the stirring tank body is effectively avoided, and the service life of the stirrer is prolonged; on the other hand, the stirrer is symmetrically provided with the convex parts or the concave parts on the surface of the stirrer, so that the pressure difference on the upper surface and the lower surface of the stirrer can be effectively reduced under the vacuum or high-pressure condition, the turbulence effect of the pressure difference on stirring liquid is relieved, the stirring effect of the stirrer can be ensured under the vacuum or high-pressure condition, and the uniformity of the stirring liquid under the vacuum or high-pressure condition is improved.
The stirrer according to the invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the blender set forth above without departing from the spirit of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (6)
1. A stirrer, characterized in that the stirrer comprises:
the stirring body is in a circular dish shape, is made of plastic material and is provided with an upper surface and a lower surface which are symmetrical, the surfaces of the upper surface and the lower surface of the stirring body are in an outwards convex arc shape,
the magnet is arranged on the stirring body, the stirring body and the magnet are spliced and fixed in a hot melting mode, wherein,
the stirrer moves upwards from the bottom of the stirring liquid to the liquid surface along with the increase of the rotating speed,
the stirring device is characterized in that a plurality of protruding parts are arranged on the upper surface of the stirring body, and the protruding parts are symmetrically arranged around the circle center of the upper surface.
2. The stirrer according to claim 1, wherein the stirring body is made of high-density polyethylene.
3. The stirring bar of claim 1 wherein the protrusions are disposed around the center and/or at the peripheral edges of the upper surface.
4. The mixer of claim 1 wherein an extension of the center of said projection intersects the center line of the projection of said mixer body on a horizontal plane.
5. The stirring bar of claim 1 wherein a plurality of depressions are formed in the upper and lower surfaces of the stirring body, the depressions being curved and the depressions being disposed around the centers of the upper and lower surfaces.
6. The mixer of claim 5 wherein the center of the depression coincides with the center of the projection of the mixer body on a horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757601.0A CN107469718B (en) | 2017-08-29 | 2017-08-29 | Stirring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757601.0A CN107469718B (en) | 2017-08-29 | 2017-08-29 | Stirring rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107469718A CN107469718A (en) | 2017-12-15 |
| CN107469718B true CN107469718B (en) | 2024-02-02 |
Family
ID=60602906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757601.0A Active CN107469718B (en) | 2017-08-29 | 2017-08-29 | Stirring rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107469718B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921719A (en) * | 1960-05-06 | 1963-03-20 | Nat Res Dev | Improvement in magnetic stirrers |
| GB1493776A (en) * | 1975-07-03 | 1977-11-30 | Parkside Ind Corp | Magnetic stirring elements |
| EP0438004A1 (en) * | 1989-12-18 | 1991-07-24 | PECHINEY RECHERCHE (Groupement d'Intérêt Economique régi par l'Ordonnance du 23 Septembre 1967) Immeuble Balzac | Method and device for making composite products having a metal matrix |
| JP2001149764A (en) * | 1999-11-29 | 2001-06-05 | Lion Corp | High speed stirrer, stirring device and method of preparing high viscosity material |
| CN201046392Y (en) * | 2007-06-12 | 2008-04-16 | 中国铝业股份有限公司 | Stirring unit of magnetic stirrer |
| AU2010342955A1 (en) * | 2010-01-21 | 2012-09-13 | Yuyao Sunboy Electric Appliance Co., Ltd. | Milk foaming kettle |
| CN202849096U (en) * | 2012-08-04 | 2013-04-03 | 昆明理工大学 | Magnetic anti-clogging collecting device for preparing rhenium pentachlofide |
| CN203170260U (en) * | 2012-10-26 | 2013-09-04 | 湖北工业大学 | Shearing and dispersing magnetic agitator |
| CN207371456U (en) * | 2017-08-29 | 2018-05-18 | 鼎纳科技有限公司 | Stirrer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100046323A1 (en) * | 2007-02-08 | 2010-02-25 | Linsheng Walter Tien | Magnetic Stirring Devices and Methods |
-
2017
- 2017-08-29 CN CN201710757601.0A patent/CN107469718B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921719A (en) * | 1960-05-06 | 1963-03-20 | Nat Res Dev | Improvement in magnetic stirrers |
| GB1493776A (en) * | 1975-07-03 | 1977-11-30 | Parkside Ind Corp | Magnetic stirring elements |
| EP0438004A1 (en) * | 1989-12-18 | 1991-07-24 | PECHINEY RECHERCHE (Groupement d'Intérêt Economique régi par l'Ordonnance du 23 Septembre 1967) Immeuble Balzac | Method and device for making composite products having a metal matrix |
| JP2001149764A (en) * | 1999-11-29 | 2001-06-05 | Lion Corp | High speed stirrer, stirring device and method of preparing high viscosity material |
| CN201046392Y (en) * | 2007-06-12 | 2008-04-16 | 中国铝业股份有限公司 | Stirring unit of magnetic stirrer |
| AU2010342955A1 (en) * | 2010-01-21 | 2012-09-13 | Yuyao Sunboy Electric Appliance Co., Ltd. | Milk foaming kettle |
| CN202849096U (en) * | 2012-08-04 | 2013-04-03 | 昆明理工大学 | Magnetic anti-clogging collecting device for preparing rhenium pentachlofide |
| CN203170260U (en) * | 2012-10-26 | 2013-09-04 | 湖北工业大学 | Shearing and dispersing magnetic agitator |
| CN207371456U (en) * | 2017-08-29 | 2018-05-18 | 鼎纳科技有限公司 | Stirrer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107469718A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207371456U (en) | Stirrer | |
| KR101822334B1 (en) | Defoamer for fermenter, and microorganism fermenter using defoamer | |
| US20030053371A1 (en) | Magnetic stirring apparatus and an agitating device | |
| US20090314666A1 (en) | Container System With One Container With a Flexible Partition | |
| JP2007136443A (en) | Agitating bar and agitation apparatus | |
| CN107469718B (en) | Stirring rod | |
| CN105567563B (en) | A kind of tissue cell culture device | |
| JP2017528188A (en) | Washing machine and washing method | |
| CN110039676A (en) | Polyether sulfone micro-filtration membrane casting film alloy melt stirring device | |
| JP2015000025A (en) | Culture apparatus and culture method | |
| JP5969691B2 (en) | Incubator | |
| CN103240016B (en) | A kind of online process agitating device | |
| CN209363146U (en) | Rotating mechanism and cleaning device | |
| CN104289170A (en) | Reaction kettle | |
| CN205568797U (en) | Broken wall machine | |
| CN205809494U (en) | A kind of friction cloth processing means | |
| GB2082930A (en) | Magnetic stirring element | |
| CN207481076U (en) | Chipware, blender and milk brewing machine | |
| CN202715385U (en) | Impeller of stirring motor for stirring silicon nitride solution | |
| GB2076677A (en) | Magnetic stirring elements | |
| CN208645048U (en) | A kind of novel fixed shell of levigator | |
| CN209155841U (en) | A kind of wear-resisting reaction kettle agitating shaft | |
| CN211274295U (en) | High-efficient mixing arrangement is used in production of polymer defoaming agent | |
| US3362693A (en) | Range apparatus | |
| CN206903934U (en) | A kind of reliable centrifugal wind wheel of structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |