阅读说明：本技术 四氟磁力搅拌器 (Tetrafluoro magnetic stirrer ) 是由 蒋春明 于 2019-12-16 设计创作，主要内容包括：本发明公开了一种四氟磁力搅拌器,包括驱动装置、减速机和内驱动轴,内驱动轴的外部从下至上依次套设有机架、主磁力轴头和副磁力轴头；主磁力轴头和副磁力轴头均为一体成型结构,且材质均为PTFE；主磁力轴头包括主壳体、主桨叶、外驱动磁缸和内驱动磁缸,内驱动磁缸和外驱动磁缸上均设置有磁块；副磁力轴头包括副壳体、设置在副壳体内部的陶瓷内轴套和陶瓷外轴套,陶瓷外轴套固定在内驱动轴的外侧,陶瓷内轴套固定在内驱动轴的内侧。本发明采用上述结构的四氟磁力搅拌器,将磁力头设置为一体成型结构,且采用PTFE材质,无需密封,耐腐蚀性强,同时避免了药液渗漏,能够应用在耐腐蚀药液的搅拌中,增加了磁力搅拌器的使用寿命。(The invention discloses a tetrafluoro magnetic stirrer which comprises a driving device, a speed reducer and an inner driving shaft, wherein a rack, a main magnetic shaft head and an auxiliary magnetic shaft head are sequentially sleeved outside the inner driving shaft from bottom to top; the main magnetic shaft head and the auxiliary magnetic shaft head are of an integrally formed structure and are made of PTFE (polytetrafluoroethylene); the main magnetic shaft head comprises a main shell, a main blade, an external driving magnetic cylinder and an internal driving magnetic cylinder, wherein the internal driving magnetic cylinder and the external driving magnetic cylinder are both provided with magnetic blocks; the auxiliary magnetic shaft head comprises an auxiliary shell, a ceramic inner shaft sleeve and a ceramic outer shaft sleeve, wherein the ceramic inner shaft sleeve and the ceramic outer shaft sleeve are arranged inside the auxiliary shell, the ceramic outer shaft sleeve is fixed on the outer side of the inner driving shaft, and the ceramic inner shaft sleeve is fixed on the inner side of the inner driving shaft. According to the PTFE magnetic stirrer adopting the structure, the magnetic head is arranged into an integrally formed structure and made of PTFE materials, sealing is not needed, corrosion resistance is high, leakage of liquid medicine is avoided, the PTFE magnetic stirrer can be applied to stirring of corrosion-resistant liquid medicine, and the service life of the magnetic stirrer is prolonged.)

1. A tetrafluoro magnetic stirrer is characterized in that:

the magnetic driving device comprises a driving device, a speed reducer connected with the driving device and an inner driving shaft connected with the speed reducer, wherein a rack, a main magnetic shaft head and an auxiliary magnetic shaft head are sequentially sleeved outside the inner driving shaft from bottom to top;

the main magnetic shaft head and the auxiliary magnetic shaft head are of an integrally formed structure and are made of PTFE (polytetrafluoroethylene); the main magnetic shaft head comprises a main shell, a main blade arranged on the outer wall of the main shell, an external driving magnetic cylinder arranged on the inner wall of the main shell and an internal driving magnetic cylinder arranged on the inner wall of the internal driving shaft, wherein magnetic blocks are arranged on the internal driving magnetic cylinder and the external driving magnetic cylinder;

the auxiliary magnetic shaft head comprises an auxiliary shell, a ceramic inner shaft sleeve and a ceramic outer shaft sleeve, wherein the ceramic inner shaft sleeve and the ceramic outer shaft sleeve are arranged in the auxiliary shell, the ceramic outer shaft sleeve is fixed on the outer side of the inner driving shaft, the ceramic inner shaft sleeve is fixed on the inner side of the inner driving shaft, and auxiliary blades are arranged on the auxiliary shell.

2. The tetrafluoro magnetic stirrer according to claim 1, characterized in that: the inner driving magnetic cylinder is connected with the inner driving shaft through an inner driving magnetic cylinder fixing sleeve, and an inner driving centering bearing is arranged at the joint of the bottom end of the inner driving magnetic cylinder, the rack and the inner driving shaft.

3. The tetrafluoro magnetic stirrer according to claim 2, characterized in that: the external drive magnetic cylinder is connected with the internal drive shaft and the main shell through an external drive magnetic cylinder fixing sleeve.

4. The tetrafluoro magnetic stirrer according to claim 3, characterized in that: the main casing with vice casing threaded connection, just the top of vice casing is provided with the axle sleeve and presses mother.

5. The tetrafluoro magnetic stirrer according to claim 4, characterized in that: the main paddle leaf with vice paddle all sets up to four, main paddle leaf with vice paddle alternately equidistance sets up.

6. The tetrafluoro magnetic stirrer according to claim 5, characterized in that: the auxiliary shell is composed of a cylindrical supporting seat and a cylindrical fixing seat fixed on the cylindrical supporting seat, the diameter of the cylindrical fixing seat is smaller than that of the cylindrical supporting seat, and a plurality of self-cleaning holes are formed in the cylindrical supporting seat.

7. The tetrafluoro magnetic stirrer according to claim 6, characterized in that: the diameter of the bottom of the inner drive shaft is smaller than the diameter of the middle of the inner drive shaft, the diameter of the middle of the inner drive shaft is larger than the diameter of the top of the inner drive shaft, and the diameter of the top of the inner drive shaft is smaller than the diameter of the bottom of the inner drive shaft.

8. The tetrafluoro magnetic stirrer according to claim 7, characterized in that: the eight sets of magnetic blocks are arranged, and the magnetic blocks on the inner driving magnetic cylinder correspond to the magnetic blocks on the outer driving magnetic cylinder.

9. The tetrafluoro magnetic stirrer according to claim 8, characterized in that: the driving device is a motor, and a motor shaft of the motor is perpendicular to the inner driving shaft.

Technical Field

The invention relates to the technical field of magnetic stirrers, in particular to a tetrafluoro magnetic stirrer.

Background

In the biomedical field, a magnetic stirrer, which is a mixing device for stirring a liquid by a rapidly rotating stirrer, is frequently used. And the main magnetic stirring system in the existing market is mostly bottom magnetic stirring, and the structure is including stirring head, stirring support and agitator motor bar magnet, and it makes magnetic head and bar magnet rotate jointly through the magnetic force effect between bar magnet and stirring head, reaches the effect of stirring, and specific using-way is: firstly, a stirrer is put into liquid to be stirred, then the liquid is put on a magnetic tray of a magnetic stirrer, and then the magnetic stirrer is opened, so that the stirrer can be seen to rotate and stir in the liquid under the action of the magnetic stirrer; the structure has the advantages that the stator is fixed outside, the rotor is arranged inside, the rotor is connected with the rotating shaft through the coupler, the mechanical seal is arranged between the rotating shaft and the container, the leakage of stirred materials is easily caused by the structure, the use is influenced, and the pollution to the stirred materials can be caused. In addition, the existing magnetic stirring is made of stainless steel, so that the magnetic stirrer is easily corroded when used in corrosive liquid medicine, the liquid medicine is leaked, and the service life of the magnetic stirrer is shortened. In view of the above, it is desirable to design a tetrafluoro magnetic stirrer.

Disclosure of Invention

The invention aims to provide a tetrafluoro magnetic stirrer, wherein a magnetic head is arranged to be of an integrally formed structure, a PTFE material is adopted, sealing is not needed, corrosion resistance is high, leakage of liquid medicine is avoided, the tetrafluoro magnetic stirrer can be applied to stirring of corrosion-resistant liquid medicine, and the service life of the magnetic stirrer is prolonged.

In order to achieve the purpose, the invention provides a tetrafluoro magnetic stirrer which comprises a driving device, a speed reducer connected with the driving device and an inner driving shaft connected with the speed reducer, wherein a rack, a main magnetic shaft head and an auxiliary magnetic shaft head are sequentially sleeved outside the inner driving shaft from bottom to top;

the main magnetic shaft head and the auxiliary magnetic shaft head are of an integrally formed structure and are made of PTFE (polytetrafluoroethylene); the main magnetic shaft head comprises a main shell, a main blade arranged on the outer wall of the main shell, an external driving magnetic cylinder arranged on the inner wall of the main shell and an internal driving magnetic cylinder arranged on the inner wall of the internal driving shaft, wherein magnetic blocks are arranged on the internal driving magnetic cylinder and the external driving magnetic cylinder;

the auxiliary magnetic shaft head comprises an auxiliary shell, a ceramic inner shaft sleeve and a ceramic outer shaft sleeve, wherein the ceramic inner shaft sleeve and the ceramic outer shaft sleeve are arranged in the auxiliary shell, the ceramic outer shaft sleeve is fixed on the outer side of the inner driving shaft, the ceramic inner shaft sleeve is fixed on the inner side of the inner driving shaft, and auxiliary blades are arranged on the auxiliary shell.

Preferably, the inner driving magnetic cylinder is connected with the inner driving shaft through an inner driving magnetic cylinder fixing sleeve, and an inner driving centering bearing is arranged at the joint of the bottom end of the inner driving magnetic cylinder, the rack and the inner driving shaft.

Preferably, the external drive cylinder is connected with the internal drive shaft and the main housing through an external drive cylinder fixing sleeve.

Preferably, the main shell is in threaded connection with the auxiliary shell, and a shaft sleeve pressing nut is arranged at the top end of the auxiliary shell.

Preferably, the number of the main blades and the number of the auxiliary blades are four, and the main blades and the auxiliary blades are arranged in a crossed and equidistant mode.

Preferably, the auxiliary shell comprises a cylindrical supporting seat and a cylindrical fixing seat fixed on the cylindrical supporting seat, the diameter of the cylindrical fixing seat is smaller than that of the cylindrical supporting seat, and a plurality of self-cleaning holes are formed in the cylindrical supporting seat.

Preferably, the diameter of the bottom of the inner drive shaft is smaller than the diameter of the middle of the inner drive shaft, the diameter of the middle of the inner drive shaft is larger than the diameter of the top of the inner drive shaft, and the diameter of the top of the inner drive shaft is smaller than the diameter of the bottom of the inner drive shaft.

Preferably, eight sets of magnetic blocks are arranged, and the magnetic blocks on the inner driving magnetic cylinder correspond to the magnetic blocks on the outer driving magnetic cylinder.

Preferably, the driving device is a motor, and a motor shaft of the motor is perpendicular to the inner driving shaft. Therefore, the tetrafluoro magnetic stirrer adopting the structure has the advantages that the magnetic head is arranged into an integrated structure, the PTFE material is adopted, the sealing is not needed, the corrosion resistance is high, the leakage of the liquid medicine is avoided, the tetrafluoro magnetic stirrer can be applied to the stirring of the corrosion-resistant liquid medicine, and the service life of the magnetic stirrer is prolonged.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a tetrafluoro magnetic stirrer according to the present invention;

FIG. 2 is a cross-sectional view of an embodiment of a tetrafluoro magnetic stirrer according to the present invention.

Detailed Description