CN212632519U

CN212632519U - Magnetic stirring device

Info

Publication number: CN212632519U
Application number: CN202021189248.4U
Authority: CN
Inventors: 沈贡民; 张明; 王新
Original assignee: HANGZHOU GUOGUANG PHARMACEUTICAL CO Ltd
Current assignee: HANGZHOU GUOGUANG PHARMACEUTICAL CO Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-02
Anticipated expiration: 2030-06-23

Abstract

The utility model belongs to the technical field of the technique of liquid stirring and specifically relates to a magnetic stirring device is related to, including magnetic stirrer, place in the container that the magnetic stirrer upper surface is used for splendid attire liquid and set up the agitating unit on the bottom surface in the container, agitating unit is including placing the base in the container and installing the stirring piece that is used for stirring solution on the base, the stirring piece is including the spliced pole of the stirring rake and the fixed mounting that are used for stirring liquid on the stirring rake, the spliced pole is pegged graft and is rotated on the base, spliced pole lower extreme fixed mounting has and drives spliced pole and stirring rake pivoted magnetism spare with magnetic stirrer mutually supporting. The utility model discloses have the effect that effectively reduces the agitating unit and rotate the contact of in-process and bottom surface in the container.

Description

Magnetic stirring device

Technical Field

The utility model belongs to the technical field of the technique of liquid stirring and specifically relates to a magnetic stirring device is related to.

Background

Magnetic stirrers are laboratory instruments for mixing liquids, primarily for stirring or simultaneously heating and stirring low-viscosity liquids or solid-liquid mixtures. The basic principle is that magnetic stirrer inside container is driven by magnetic field to rotate circularly to stir liquid.

Publication No. CN102120157A discloses a magnetic stirrer, which comprises a base made of non-magnetic material and a container placed on the top surface of the base. The container is filled with liquid to be stirred, and a stirrer is arranged in the liquid. The base accommodates a motor, a drive shaft extending from the motor shaft, and a rotating horizontal support on the drive shaft. Two permanent magnets as rotating magnets, south pole or north pole respectively, are arranged on the horizontal support, and the rotation of the permanent magnets becomes the stirring power of the stirrer in the container. The method is characterized in that: it has a self-contained large capacity lithium battery, a plug-in fixing device for the lithium battery, a circuit control board for controlling the charging of the lithium battery and controlling the running speed of the motor, and a fixing device for the circuit control board. A power switch, a speed regulation knob, a direct current power interface, a motor working state indicator lamp, a battery charging indicator lamp, a state selection switch and an instruction input jack are arranged on the vertical surface of the side wall of the base shell.

The above magnetic stirrer has the following problems: the surface of the stirrer was covered with polytetrafluoroethylene. However, in the long-term use process of the stirrer, because friction is generated between the stirrer and the inner bottom surface of the container for containing liquid, a layer of polytetrafluoroethylene on the surface is slowly abraded, and then the liquid is polluted in the abrasion process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a magnetic stirring device, which can effectively reduce the contact of the bottom surface in the rotating process of the stirring device and a container.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a magnetic stirring device, includes magnetic stirrers, places in the container that the magnetic stirrers upper surface is used for splendid attire liquid and sets up the agitating unit on the bottom in the container, agitating unit is including placing the base in the container and installing the stirring piece that is used for stirring solution on the base, the stirring piece is including the stirring rake that is used for stirring liquid and the spliced pole of fixed mounting on the stirring rake, the spliced pole is pegged graft and is rotated on the base, spliced pole bottom fixed mounting has and drives spliced pole and stirring rake pivoted magnetism spare with magnetic stirrers mutually supporting.

In above-mentioned technical scheme, when needs stir solution, place agitating unit in the container, peg graft the spliced pole on the base, start magnetic stirrers, through the magnetism spare that the spliced pole bottom set up and magnetic stirrers's magnetic interaction, the spliced pole rotates to drive the stirring rake and rotate. The stirring rake makes the stirring rake not contact the container bottom surface and then can not produce wearing and tearing at the rotation in-process owing to the setting of spliced pole and base to the prevention produces impurity and pollutes liquid because the friction of stirring rake and container bottom surface. And after the stirring is finished, closing the magnetic stirrer, and stopping the rotation of the stirring piece after a period of time.

The present invention may be further configured in a preferred embodiment as: the base is embedded with a bearing, and the connecting column is arranged on the inner ring of the bearing.

In the technical scheme, the connecting column of the stirring piece is inserted into the inner ring of the bearing, and the bearing ensures that the stirring piece is not directly matched with the base but runs by depending on the rolling contact between the elements, so that the stirring piece is easy to start while the sliding resistance is small.

The present invention may be further configured in a preferred embodiment as: the connecting point of the stirring paddle and the connecting column is positioned at the midpoint of the stirring paddle.

In the technical scheme, the two ends of the stirring paddle are stressed uniformly when the stirring paddle rotates, and the stirring effect is better.

The present invention may be further configured in a preferred embodiment as: the spliced pole is close to one end threaded connection of stirring rake has the regulating block, regulating block lower surface butt sets up in inner circle upper surface.

In the technical scheme, when the connecting column is inserted into the bearing inner ring, the adjusting block is rotated to abut against the upper end face of the inner ring, the connecting column is tightly abutted against the upper end face of the inner ring, and the connecting column is stably sleeved on the inner ring.

The present invention may be further configured in a preferred embodiment as: the length of the stirring paddle is larger than that of the base, and a gap is formed between the stirring paddle and the inner wall of the container.

In above-mentioned technical scheme, the liquid area that the stirring rake contacted is bigger, avoids solid powder to subside in the liquid to reach better stirring effect. The stirring paddle and the inner wall of the container can reduce the gap as much as possible, and the stirring range of the stirring paddle is improved as much as possible under the condition that the stirring paddle is not contacted with the inner wall of the container.

The present invention may be further configured in a preferred embodiment as: the base is the hollow cylinder setting, the bearing is installed in the base, base lower extreme outer wall fixedly connected with is used for increasing base and container in bottom surface area of contact's bottom plate, base upper end inner wall fixedly connected with circle frame, bottom surface butt is on the bearing outer lane up end under the circle frame, the spliced pole passes the circle frame is connected with the bearing.

In the technical scheme, the bearing is arranged in the base through the arrangement of the hollow cylinder, the contact area of the bottom plate and the inner bottom surface of the container is large through the bottom plate, the bottom plate can be stably placed on the inner bottom surface of the container, and the stability of the stirring device is improved. The bearing outer ring is abutted against the lower bottom surface of the circular frame, so that when the bearing is embedded on the base, the circular frame abuts against the upper end surface of the bearing, and the bearing is stabilized.

The present invention may be further configured in a preferred embodiment as: two threaded rods which are connected with the bearing outer ring in a penetrating mode are fixedly arranged on the base in a penetrating mode, and the threaded rods are connected with the base in a threaded mode and connected with the bearing outer ring in a butting mode.

In the technical scheme, after the bearing is embedded on the base, an operator fixes the bearing outer ring on the base through the threaded rod and the bearing outer ring in a butt mode, and therefore the bearing is more stable in the using process. The threaded rod is unscrewed, so that the bearing can be detached for cleaning, convenience and rapidness are realized, and the bearing cleaning degree is prevented from being insufficient to influence the next use.

The present invention may be further configured in a preferred embodiment as: the threaded connection has two butt in the threaded rod of bearing inner race on the base, the contained angle of two threaded rod extension lines is the right angle setting.

In above-mentioned technical scheme, after the bearing housing was located on the base, operating personnel fixed the bearing inner race on the base through rotatory threaded rod to it is more stable in the use to make the bearing.

The present invention may be further configured in a preferred embodiment as: and the bearing outer ring and the base are in threaded connection with two threaded rods, and the included angle of the extension lines of the two threaded rods is arranged at a right angle.

In above-mentioned technical scheme, support the bearing inner race tightly jointly through setting up two threaded rods perpendicularly, all fix each direction of bearing inner race, fixed effect is obvious when saving the threaded rod.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the stirring piece is not directly matched with the base through the arrangement of the bearing on the base, but runs by depending on the rolling contact between the elements, and the stirring piece is easy to start while having small sliding resistance.

2. The setting through the base makes the stirring rake rotate the in-process not with the contact of container bottom surface and then reduce the friction to the prevention is because the friction of stirring piece and container bottom surface produces impurity and pollutes liquid, guarantees sterile environment.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of components of an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the invention.

In the figure, 1, a magnetic stirrer; 2. a container; 3. a base; 31. a base plate; 32. a round frame; 4. a bearing; 5. a stirring paddle; 6. connecting columns; 7. an adjusting block; 8. a magnetic member; 9. a threaded rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a magnetic stirring device, including magnetic stirrer 1, place in the container 2 that the 1 upper surface of magnetic stirrer is used for splendid attire liquid and set up the agitating unit on the bottom surface in container 2. Install on the agitating unit and mutually support and drive agitating unit pivoted magnetism spare 8 with magnetic stirrers 1, through the magnetic field interact of magnetic stirrers 1 and magnetism spare 8, agitating unit can rotate.

Referring to fig. 2 and 3, the stirring device comprises a base 3, a bearing 4 embedded on the base 3, and a stirring piece inserted and rotated in an inner ring of the bearing 4. Base 3 is the hollow cylinder setting, and base 3 makes the stirring piece rotate the in-process contactless container 2 bottom surfaces and then can not produce wearing and tearing to the prevention produces impurity because the friction of stirring piece and container 2 bottom surfaces and pollutes liquid. The outer wall of the lower end of the base 3 is fixedly connected with a bottom plate 31, and the inner wall of the upper end of the base 3 is fixedly connected with a round frame 32. The bottom plate 31 has a large contact area with the inner bottom surface of the container 2, so that the bottom plate can be stably placed on the inner bottom surface of the container 2, and the stability of the stirring device is improved. Bearing 4 inlays and locates on base 3, and the stirring piece passes circle frame 32 and insert and circle in bearing 4, and the setting of bearing 4 outer lane butt in circle frame 32 lower terminal surface, when bearing 4 inlays and locates on base 3, thereby circle frame 32 supports bearing 4 up end and supports and stabilize bearing 4. The bearing 4 makes the stirring element not directly cooperate with the base 3, but operates by means of rolling contact between the elements, and the starting is also easier with a low sliding resistance. The bearing 4 is made of zirconia material, is high temperature resistant and is suitable for more production environments.

The side of the base 3 is fixedly provided with two threaded rods 9 used for fixing the outer ring of the bearing 4 along the horizontal direction, the two threaded rods 9 penetrate through the base 3 and are connected with the base 3 in a threaded manner, and the two threaded rods 9 are abutted against the outer ring of the bearing 4. After the bearing 4 is sleeved on the base 3, the outer ring of the bearing 4 is fixed on the base 3 through the threaded rod 9, so that the bearing 4 is more stable in the using process. The contained angle of two threaded rod 9 extension lines is the right angle, all fixes bearing 4 each direction through two threaded rod 9, improves fixed effect when saving threaded rod 9. Can dismantle the bearing and wash behind the unscrewing threaded rod 9, convenient and fast prevents that bearing 4 washing degree is not enough and influence next use.

The stirring piece comprises a stirring paddle 5 for stirring liquid, a connecting column 6 fixedly arranged on the stirring paddle 5 and an adjusting block 7 in threaded connection with the upper end of the connecting column 6. When the connecting column 6 is arranged on the inner ring of the bearing 4, the adjusting block 7 is rotated to abut against the upper end face of the inner ring of the bearing 4, and the connecting column 6 is tightly abutted against the upper end face of the inner ring of the bearing 4, so that the connecting column 6 is stably embedded on the inner ring of the bearing 4. The stirring paddles 5 at the upper end of the connecting column 6 are vertical to the connecting column 6. The connecting point of the stirring paddle 5 and the connecting column 6 is located at the middle point of the stirring paddle 5, so that the two ends of the stirring paddle 5 are stressed uniformly when the stirring paddle 5 rotates, and the stirring effect is better. The length of stirring rake 5 is greater than the length of base 3 and stirring

rake

5 and 2 inner wall clearances of container set up for the liquid scope of the container 2 bottom that stirring rake 5 can contact is bigger, and the stirring effect is obvious.

The implementation principle of the embodiment is as follows: when the solution needs to be stirred, the bearing 4 is installed in the base 3, and the threaded rod 9 is rotated to fix the bearing 4. At the moment, the connecting column 6 of the stirring piece is inserted into the bearing 4, and meanwhile, the adjusting block 7 is rotated to enable the connecting column 6 to be fixed on the outer ring 42 of the bearing 4. At this moment, the magnetic stirrer 1 is started, and the magnetic stirrer 1 drives the connecting column 6 to rotate, so that the stirring paddle 5 on the connecting column 6 is driven to rotate, and the powder and the like settled at the bottom are fully stirred. After the stirring is finished, the magnetic stirrer 1 is closed, and after a period of time, the stirring piece stops rotating. When the bearing 4 needs to be cleaned, the two threaded rods 9 are loosened, and the bearing 4 is taken out from the lower end of the base 3 and cleaned.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a magnetic stirring device, includes magnetic stirrer (1), places in container (2) that magnetic stirrer (1) upper surface is used for splendid attire liquid and sets up the agitating unit on the bottom surface in container (2), its characterized in that: agitating unit is including placing base (3) in container (2) and installing the stirring piece that is used for stirring solution on base (3), the stirring piece is including stirring rake (5) and the spliced pole (6) of fixed mounting on stirring rake (5) that are used for stirring liquid, spliced pole (6) are pegged graft and are rotated on base (3), spliced pole (6) lower extreme fixed mounting has and mutually supports and drive spliced pole (6) and stirring rake (5) pivoted magnetism spare (8) with magnetic stirrers (1).

2. A magnetic stirring apparatus as set forth in claim 1, wherein: the base (3) is embedded with a bearing (4), and the connecting column (6) is arranged on an inner ring of the bearing (4).

3. A magnetic stirring apparatus as set forth in claim 1, wherein: the connecting point of the stirring paddle (5) and the connecting column (6) is positioned at the midpoint of the stirring paddle (5).

4. A magnetic stirring apparatus as set forth in claim 2, wherein: one end threaded connection that spliced pole (6) is close to stirring rake (5) has regulating block (7), regulating block (7) lower surface butt is in bearing (4) inner circle upper surface setting.

5. A magnetic stirring apparatus as set forth in claim 2, wherein: stirring rake (5) length is greater than base (3) length, just stirring rake (5) and container (2) inner wall clearance set up.

6. A magnetic stirring apparatus as set forth in claim 2, wherein: base (3) are the hollow cylinder setting, install in base (3) bearing (4), base (3) lower extreme outer wall fixedly connected with is used for increasing bottom surface area of contact's in base (3) and container (2) bottom plate (31), base (3) upper end inner wall fixedly connected with circle frame (32), bottom surface butt is on bearing (4) outer lane up end under circle frame (32), spliced pole (6) are passed circle frame (32) are connected with bearing (4).

7. A magnetic stirring apparatus as set forth in claim 2, wherein: base (3) are followed horizontal direction fixed mounting and are used for threaded rod (9) of fixing bearing (4) outer lane, threaded rod (9) threaded connection is in base (3) and butt in bearing (4) outer lane.

8. A magnetic stirring apparatus as set forth in claim 2, wherein: the base (3) is provided with two threaded rods (9) which are connected with the outer ring of the bearing (4) in a butt mode, and the included angle of the extension lines of the two threaded rods (9) is arranged in a right angle mode.