CN2070193U

CN2070193U - Micro stirrer

Info

Publication number: CN2070193U
Application number: CN90201842.6U
Authority: CN
Inventors: 卫淑英
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-02-23
Filing date: 1990-02-23
Publication date: 1991-01-30

Abstract

The utility model relates to an improvement on the basis of the existing stirrer used in various laboratories. The utility model belongs to laboratory instrument equipment and comprises a fixed sleeve 1 for a miniature electric machine, a standard plug 2, a stirring paddle 3, a shaft coupling 4, the miniature electric machine 5, etc. After improvement, the developed stirrer has more reasonable structure and more convenient and reliable use and also reinforces the applicability. The utility model can be produced by the general middle size and small size factories. Compared with the general stirrers of various types, the cost of the utility model can be reduced greatly.

Description

Micro stirrer

The utility model belongs to Laboratory Instruments equipment.

Present chemical at home and abroad, medical and health, biology, in the laboratory of agricultural and environmental science, in all kinds of experiments of physics and chemistry, stirring is a kind of operating process of often carrying out.In order to finish this process, people's design has also been made various agitating devices in many styles.For example all kinds of stirring motors and various magnetic stirring apparatus etc.The former inserts the stirring of the paddle in the container by being driven by dedicated motor, finishes whipping process.The latter then is that the magneton that relies on rotary magnet to drive is finished whipping process.Utilize oscillator to stir in addition in some occasion.But all there is the shortcoming of the little or difficult assembling of the scope of application in above-mentioned these devices.For example the concentricity of the axle center of stirring motor and container is difficult to find accurately, and in addition, the binding site of paddle and container also is not easy to install.The installation of these aspects is improper to tend to cause the noise height, and wearing and tearing are big, the consequence of job insecurity.And magnetic stirring apparatus since its plane heating dish can not round-bottomed flask directly be heated, the user must not no longer put an oil bath cylinder on heating plate, and the use of oil bath has brought unsafe factor to the user, and oil is easily contaminated, be difficult to handle, also very unhygienic.

Development of the present utility model is just in order to overcome the shortcoming of above-mentioned various device.It is installed in a DC micromotor on the porose international type standard grinding port plug in center.Need not any anchor clamps during use, can be fixed on the container.Paddle directly inserts container by the centre bore of stopper, need not the user and bothers with combining of container for paddle.This device can be directly with dry cell or general commercially available small-sized including, and sound machine direct current stabilizer drives, and motor speed can directly be controlled by voltage-stablizer.Occasion in the needs heating can directly adopt the electrical heating cover under the container, stirs on original all kinds of devices and the difficult contradiction of carrying out simultaneously of heating thereby solved effectively.In order to enlarge the scope of application, this device also has been equipped with the standard plug of different size and the paddle of different length.All these brings great convenience to the user.

Standard plug on this device can be used glass, pottery or polyethylene, polypropylene, polytetrafluoroethylene (PTFE), silicon rubber and various nylon as required.Engineering plastics are made.Specification is international 14mm, 19mm, 24mm, 29mm etc.Paddle body useable glass or stainless steel manufacturing require to spray the polytetrafluoroethylene (PTFE) protective layer in the metal surface according to difference, and length is 100--350mm.

The utility model requires each component processing precision not high, can be by the manufacturer production with general machined ability.

Explanation to accompanying drawing: accompanying drawing is the structural representation of this device, 1--micro machine fixed cover, 2--standard plug, 3--paddle, 4--shaft coupling, 5--micro machine, 6--supply socket.

Claims

1, a kind of agitator, comprise micro machine fixed cover 1, the standard plug 2 of international all size, paddle 3, shaft coupling 4 between paddle and the motor shaft, feature of the present utility model be micro machine and fixed cover directly with the standard plug connection, paddle directly passes from the centre bore of standard plug after shaft coupling and motor shaft link.

2, agitator according to claim 1 is characterized in that stopper 2 is the general international standard specification, 14mm for example, and 19mm, 24mm, 29mm etc., and can exchange easily.Paddle 3 has various length, and its length is 100--350mm.

3, according to claim 1 and 2 described agitators, it is characterized in that standard plug 2 available polyethylenes, polypropylene, polytetrafluoroethylene (PTFE), silicon rubber, nylon, various engineering plastics or glass, pottery is made.Paddle useable glass or stainless steel are made, and the surface can spray the polytetrafluoroethylene (PTFE) protective layer.