CN215506424U - Stirrer for laboratory - Google Patents
Stirrer for laboratory Download PDFInfo
- Publication number
- CN215506424U CN215506424U CN202121379787.9U CN202121379787U CN215506424U CN 215506424 U CN215506424 U CN 215506424U CN 202121379787 U CN202121379787 U CN 202121379787U CN 215506424 U CN215506424 U CN 215506424U
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- Prior art keywords
- stirring
- base
- unit
- laboratory
- base plate
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- 238000003756 stirring Methods 0.000 claims abstract description 77
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model discloses a stirrer for a laboratory, which comprises a stirring unit for stirring chemical reagents in a container, a supporting unit for fixing the stirrer above the container and a power unit for providing power for the stirring unit. The stirrer for the laboratory is provided with the power unit, so that the hands of a tester are liberated, and the hands of the tester are replaced to provide power for stirring the chemical reagent; by arranging the supporting unit, the stirrer for the laboratory is placed above the container, such as on the container opening, and the stirring is carried out without a person; through setting up stirring unit, realize the stirring to chemical reagent.
Description
Technical Field
The utility model belongs to the field of experimental equipment, and relates to a chemical reagent stirring device.
Background
At present, when chemical experiments such as pharmaceutical experiments are carried out in a laboratory, a beaker is generally used as a reaction vessel, and continuous stirring is required during the chemical reaction. In the conventional operation, a glass rod is used for stirring to accelerate the dissolution of the compound and enable the solute to be rapidly and uniformly diffused into the solution; in some chemical experiments, heat loss can also be accelerated by stirring.
When stirring with a glass rod, care must be taken not to stir too hard, which could lead to breakage of the glass rod. Meanwhile, the container wall and the container bottom cannot be collided during stirring so as to prevent the glass rod or the container from being cracked.
In the process of implementing the utility model, the inventor finds that at least the following problems exist in the prior art:
in some test processes, the chemical reaction time is long, and testers need to keep stirring for a long time, so that the arms are sore, more importantly, the stirring operation consumes a large amount of time of the testers, and the test efficiency is reduced.
Disclosure of Invention
In view of this, the utility model aims to provide a stirrer for a laboratory, which can realize automatic stirring.
The technical scheme provided by the utility model is to provide a stirrer for a laboratory, which comprises a stirring unit for stirring chemical reagents in a container, a supporting unit for fixing the stirrer above the container and a power unit for providing power for the stirring unit.
According to one embodiment of the laboratory mixer according to the utility model, the power unit is an electric motor.
According to one embodiment of the laboratory mixer according to the present invention, the support unit includes a base and a base plate, the base is mounted above the base plate, the motor is mounted on the base, and the mixing unit is mounted below the base.
According to one embodiment of the stirrer for the laboratory, the stirring unit comprises a rotating shaft, the upper end of the rotating shaft is in transmission connection with a power output shaft of the motor; the lower end of the rotating shaft is provided with a movable stirring head.
According to one embodiment of the stirrer for the laboratory, the stirring unit further comprises an outer tube, the upper end of the outer tube is fixedly connected with the base, and the lower end of the outer tube is provided with a static stirring head; the rotating shaft is arranged in the outer pipe.
According to one embodiment of the laboratory mixer according to the utility model, the bottom end of the dynamic mixing head is higher than the bottom end of the static mixing head.
According to one embodiment of the stirrer for the laboratory, the upper section of the outer pipe is provided with an external thread, the base plate is provided with an internal thread hole, and the outer pipe is in threaded fit with the base plate.
According to one embodiment of the stirrer for the laboratory, an annular gap is formed between the rotating shaft and the outer tube, and a liquid feeding tube is installed in the base and communicated with the annular gap.
According to one embodiment of the laboratory stirrer according to the present invention, the lower surface of the base plate is provided with a plurality of ring-shaped positioning grooves.
According to one embodiment of the stirrer for laboratory use according to the present invention, the base plate is provided with a plurality of through holes.
Compared with the prior art, one of the technical solutions has the following advantages:
a) the stirrer for the laboratory is provided with the power unit, so that the hands of a tester are liberated, and the hands of the tester are replaced to provide power for stirring the chemical reagent; by arranging the supporting unit, the stirrer for the laboratory is placed above the container, such as on the container opening, and the stirring is carried out without a person; through setting up stirring unit, realize the stirring to chemical reagent.
b) In one embodiment of the laboratory stirrer, the movable stirring head and the static stirring head are arranged, so that stirring can be more uniform.
c) In one embodiment of the stirrer for the laboratory, the movable stirring head is positioned at the inner side of the static stirring head and is higher than the static stirring head, so that the movable stirring head is prevented from contacting with the wall or the bottom of the container in the stirring process, and the safety of the container is ensured.
d) In one embodiment of the stirrer for the laboratory, the base plate is matched with the appearance threads, so that the distance between the stirring head and the base plate can be adjusted, and the stirrer is suitable for stirring tasks of containers with different heights.
e) In one embodiment of the stirrer for the laboratory, the positioning groove is formed in the base plate, so that the stirrer can be more stably placed on the opening of the container, and the horizontal displacement is avoided; and a plurality of circles of positioning grooves are formed to adapt to the stirring task of containers with different diameters.
f) In one embodiment of the stirrer for the laboratory, a liquid adding pipe is arranged, so that a chemical reagent is added conveniently in the stirring process.
g) In one embodiment of the stirrer for the laboratory, the through hole is formed in the substrate, so that pressure relief and heat dissipation can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic front view of a preferred embodiment of a laboratory mixer according to the present invention.
Fig. 2 is a schematic right view of fig. 1.
Fig. 3 is a schematic bottom view of fig. 1.
Fig. 4 is a schematic perspective view of fig. 1.
Fig. 5 is a perspective view of fig. 1 from another angle.
The labels in the figure are respectively:
100 of the motor, and a motor driving device,
210 an outer tube of a gas turbine,
211 stirring the head of the mixer by a static mixer,
212 an external thread, and,
220 the rotating shaft is arranged at the position of the rotating shaft,
221 the stirring head is moved, and the stirring head is moved,
300 of the base of the machine tool, 300 of the machine tool,
a liquid adding pipe 301 is arranged on the bottom of the container,
400 of the number of the substrates are described,
401 positioning a slot.
Detailed Description
The following description is made with reference to the accompanying drawings and a specific embodiment.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
See fig. 1-5. The stirrer for the laboratory is described in the embodiment and comprises a stirring unit for stirring the chemical reagent in the container, a supporting unit for fixing the stirrer above the container and a power unit for providing power for the stirring unit.
In this embodiment, the power unit is a motor 100, such as a variable speed motor. The motor 100 may be externally connected to a power cord or may be provided with a dedicated battery. In the circuit where the motor 100 is located, a contactor controlled by a relay may be installed, or a circuit breaker with a 485 interface may remotely control the start and stop of the motor 100, or the start and stop and the rotation speed of the motor 100 may be remotely controlled by a PLC. In different chemical reaction processes, the requirement on the stirring speed is different, so that the motor 100 has different rotating speeds, and different chemical reaction requirements can be met.
The supporting unit includes a base 300 and a base plate 400, the base 300 is installed above the base plate 400, the motor 100 is installed on the base 300, and the stirring unit is installed below the base 300. In this embodiment, the base 300 provides a mounting base for the main functional components of the stirrer, and the base plate 400 has a main function of mounting the stirrer onto the reaction vessel, and more specifically, the base plate 400 is a circular ring-shaped flat plate which can be directly disposed on the mouth of the reaction vessel and directly contact with the reaction vessel. In a further embodiment, the bottom surface of the substrate 400 is provided with a plurality of positioning grooves 401, and the diameter of the circular ring of the positioning grooves 401 is set according to the caliber size of a conventional reaction vessel, so that the positioning grooves 401 can be clamped on the mouth of the reaction vessel. Commonly used reaction vessels include beakers, triangular flasks and the like. In an alternative embodiment, a plurality of through holes (not shown in the drawings) are formed in the base plate 400 for removing gas and heat from the reaction vessel, and a gas collecting duct is further installed on the through holes, and the gas collecting duct is connected to a gas collecting bottle for collecting toxic gas generated by the chemical reaction. Of course, the substrate 400 may also be constructed in a structure of a support such as a tripod so that the substrate does not directly contact the reaction vessel.
The stirring unit includes a rotation shaft 220. The upper end of the rotating shaft 220 is in transmission connection with a power output shaft of the motor 100; the lower end of the rotating shaft 220 is provided with a movable stirring head 221. The power output shaft of the motor 100 drives the rotating shaft to rotate, and the stirring head 221 rotates to stir the reaction solution. In some chemical reactions, slow stirring is required and no bubbles can be generated during stirring. In this case, the stirring unit only needs to drive the rotating shaft 220 of the stirring head 221.
In some chemical reaction processes, vigorous stirring is needed, and the problem of bubbles generated in the stirring process is not needed to be worried about, an outer tube 210 is arranged in the stirring unit, the upper end of the outer tube 210 is fixedly connected with the base 300, and the lower end of the outer tube 210 is provided with a static stirring head 211; the rotation shaft 220 is disposed inside the outer tube 210. The bottom end of the dynamic stirring head 221 is higher than the bottom end of the static stirring head 211, and the dynamic stirring head 221 is only protected by the outer tube 210 and the static stirring head 211, so that the dynamic stirring head 221 is prevented from contacting with the reaction vessel. The outer tube 210 has an outer diameter smaller than the minimum inner diameter of the reaction vessel, for example, when the reaction vessel is a triangular flask, the inner diameter of the mouth is much smaller than the inner diameter of the ground; when the reaction container is a beaker, the inner diameter of the bottle mouth is equal to that of the bottle body. The outer diameter of the rotating shaft 220 is smaller than the inner diameter of the outer tube 210, an annular gap is formed between the rotating shaft 220 and the outer tube 210, a liquid feeding tube 301 is mounted on the base 300, and the liquid feeding tube 301 is communicated with the annular gap. The liquid adding pipe is arranged to add chemical reagents in the stirring process. In some chemical reaction processes, it is necessary to add chemical reagents in steps. The filling tube 301 can be connected with a substrate reagent bottle, when a plurality of reaction substrates are provided, a multi-way joint can be used for connection, and the reagent is added through the filling tube 301. During the process of adding the reagent, the outer tube 210 or the rotating shaft 220 can play a role of drainage, so that the reagent is slowly added into the reaction container. A mass flow meter can be added to the extension pipeline of the liquid adding pipe 301 to accurately control the addition amount of the reagent.
In a further embodiment, in order to adapt to reaction vessels with different depths, the upper section of the outer tube 210 is provided with an external thread 212, the base plate 400 is provided with an internal thread hole, and the outer tube 210 is in threaded fit with the base plate 400. The length of the outer tube 210 below the base plate 400 can be adjusted by screw-fitting. A certain pre-tightening force is provided between the screw threads of the outer tube 210 and the base plate 400, or a large friction force is provided between the screw threads of the outer tube 210 and the base plate 400, so that the outer tube 210 and the base plate 400 are prevented from rotating relatively in the stirring process.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121379787.9U CN215506424U (en) | 2021-06-21 | 2021-06-21 | Stirrer for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121379787.9U CN215506424U (en) | 2021-06-21 | 2021-06-21 | Stirrer for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215506424U true CN215506424U (en) | 2022-01-14 |
Family
ID=79809357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121379787.9U Active CN215506424U (en) | 2021-06-21 | 2021-06-21 | Stirrer for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215506424U (en) |
-
2021
- 2021-06-21 CN CN202121379787.9U patent/CN215506424U/en active Active
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