CN210934768U - Solution stirrer for experiment - Google Patents

Abstract

The utility model relates to an experimental device, in particular to an experimental solution stirrer, which comprises a cover body for covering the upper port of a beaker and a machine body; the lower end of the machine body is fixed with an air guide cover, air outlet holes are uniformly distributed on the periphery of the air guide cover, the lower port of the air guide cover is communicated with the air inlet through an air inlet channel, the air outlet holes are communicated with the air outlet through an air outlet channel, and the air inlet and the air outlet are positioned on the upper part of the machine body; the lower part of the machine body is provided with an oblique flow wind wheel device which is used for generating airflow above the liquid level to drive the solution to rotate; the power supply assembly and the controller are arranged in the machine body. When the experimental solution stirrer is used, no part is in contact with the solution, so that the experiment is more accurate and the difficulty of cleaning treatment is reduced; the device can better realize different effects of preventing material volatilization, reducing heat loss, accelerating evaporation, accelerating heat dissipation and the like; the stirring device is small and compact, is convenient to use and operate, is matched with a beaker for use, can realize a good stirring effect on a solution with lower viscosity, and has a wide application prospect.

Description

Solution stirrer for experiment

Technical Field

The utility model relates to an experimental device especially relates to a be fit for carrying out the agitator that stirs to solution in the experiment.

Background

The solution stirrer is one of the most common experimental devices in the experiment, and is used for stirring the solution so as to meet the experimental requirements of uniformly mixing materials, preventing precipitation, uniformly heating, quickly radiating heat, accelerating evaporation and the like. At present, solution stirring devices commonly used in laboratories are classified into various types according to different working modes, and the most commonly used are glass rods, magnetic stirrers and propeller-type stirrers. The common stirring devices have the common defect that contact stirring is adopted, namely, parts are required to be contacted with a solution in the working process, on one hand, materials are adhered to the local part of the stirrer after the stirrer is used, strict and thorough cleaning treatment is required, the operation is troublesome, and if the stirrer is not thoroughly cleaned, the residual materials can influence the subsequent experiment; on the other hand, a small amount of materials can be carried out when the stirrer is removed, and the accuracy of the experiment is influenced. In addition, in the experiment, when the solution is stirred, the solution often has specific requirements according to actual conditions, for example, materials which are easy to volatilize participate in the experiment, the container is closed in the stirring process so as to reduce the volatilization of the materials, and for example, when the solution is stirred in the experiment so as to accelerate evaporation or cooling, the inside of the container is exchanged with the outside so that steam can be rapidly dissipated to the outside; the function of the existing commonly used solution stirrer is single, and the special requirements on stirring in the experimental process cannot be met.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to provide an adopt non-contact stirring, it is convenient to use, and can adjust the solution agitator of container and external intercommunication state in order to satisfy experiment actual need.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

a solution stirrer for experiments comprises a circular cover body for covering an upper port of a beaker and a long cylindrical machine body, wherein the machine body penetrates through the center of the cover body along the vertical direction and can be adjusted up and down, and a locking mechanism for locking the machine body and the cover body is arranged between the machine body and the cover body; the lower end of the machine body is fixed with a bowl-shaped wind scooper, and a plurality of air outlets are uniformly distributed on the outer edge side wall around the wind scooper; an air inlet channel and an air outlet channel are arranged in the machine body and the air guide cover, the lower port of the air guide cover is communicated with an air inlet through the air inlet channel, all air outlet holes are communicated with an air outlet through the air outlet channel, the air inlet and the air outlet are positioned at the upper part of the machine body, and the machine body is provided with an air path switch which can open and close the air inlet and the air outlet; the lower part of the machine body is provided with an oblique flow wind wheel device which is used for generating airflow above the liquid level to drive the solution to rotate, and the oblique flow wind wheel device comprises a main shaft which is supported by the machine body and extends along the vertical direction, a motor which is arranged in the machine body and is used for driving the main shaft to rotate, and a plurality of blades which are supported by the main shaft and are radially distributed below the wind scooper; the inclined flow wind wheel device drives air to do centrifugal motion in the rotating process, and simultaneously drives the air to axially move downwards so that negative pressure is formed at the lower port of the wind scooper; a power supply assembly for providing working voltage for the motor and a controller for controlling the working state of the motor are arranged in the machine body, and a control panel connected with the controller is arranged on the upper end face of the machine body.

The using method and the working principle of the solution stirrer for the experiment are as follows:

the relative position of the machine body and the cover body is preset according to the amount of solution in the beaker, so that after the cover body is covered at the upper end of the beaker, the blade is positioned above the liquid level and keeps a proper distance (the solution cannot contact with the blade after rotating), and the cover body and the machine body are locked by a locking mechanism after being adjusted; covering the upper end of the beaker by the cover body, wherein the machine body is supported by the cover body and is positioned on the central shaft of the beaker, and the blades are positioned in the beaker and above the liquid level; the motor drives the oblique flow wind wheel device to rotate through the control panel, on one hand, the blades rotating at high speed drive air to do centrifugal motion, under the limitation of the inner wall of the beaker, the air on the upper side of the liquid surface rotates under the stirring of the blades, on the other hand, the blades rotating at high speed drive the air to axially move towards the liquid surface direction, the acting force of airflow on the liquid surface is increased, the solution gradually rotates under the action of the airflow on the upper side of the liquid surface, and then the purpose of stirring the solution is achieved; if material volatilization needs to be avoided or heat loss needs to be reduced in the stirring process, the gas path switch is adjusted to enable the gas inlet and the gas outlet to be in a closed state, the inner cavity of the beaker is in a closed state at the moment, and air above the liquid level is subjected to microcirculation in the beaker in the rotation process of the oblique flow wind wheel device and does not flow to the outside; if the stirring purpose is to promote the solution to evaporate or cool quickly in an accelerated way, the air path switch is adjusted to enable the air inlet and the air outlet to be in an open state, the lower port of the air guide cover is in a negative pressure state in the rotation process of the diagonal flow wind wheel device, the outside air enters the beaker through the air inlet, the air inlet channel and the lower port of the air guide cover in sequence, and the air in the beaker is driven by pressure to be discharged to the outside through the air outlet hole, the air outlet channel and the air outlet channel in sequence, so that the inside of the beaker is forced to exchange air with the outside, and the purpose of evaporating or cooling quickly is realized more; if the stirring is to uniformly mix the materials or prevent the precipitation and no special requirement is made on the communication state between the beaker and the outside, the gas circuit switch is not required to be adjusted; in the experimentation, can utilize to control the panel and carry out artificial regulation or settlement to opening, stopping and the rotational speed of motor according to actual conditions to realize the stirring effect of preferred.

Compared with the prior art, the experimental solution stirrer has the following technical effects:

according to the experimental solution stirrer, no part is in direct contact with the solution in the stirring process of the solution, so that materials are not adhered, on one hand, the experiment can be ensured to be more accurate, on the other hand, the working stability is improved, and the difficulty in cleaning treatment operation of the stirrer is reduced; in the implementation process, the machine body can be designed based on the waterproof property, the external part of the solution stirrer for the experiment and the built-in gas circuit can be directly washed, and the convenience of cleaning operation is further improved; this solution agitator for experiments can set up beaker and external circulation of air condition when using to this better realization prevents that the material from volatilizing, reduces the heat and runs off, evaporation and quickens different effects such as heat dissipation with higher speed, in order to satisfy the actual need in the experiment. The experimental solution stirrer is reasonable in structural design, small and compact, convenient to use and operate, stable in work, easy to implement, low in cost, capable of achieving a good stirring effect on a solution with low viscosity when matched with a beaker, and wide in application prospect.

Drawings

FIG. 1 is a schematic view of the entire structure of an experimental solution stirrer.

FIG. 2 is a second schematic view of the overall structure of the experimental solution stirrer.

FIG. 3 is an exploded view of the solution stirrer for experiment.

FIG. 4 is a second exploded view of the solution stirrer for experiment.

Fig. 5 is a schematic view of a body with a cut-away portion of the housing.

Fig. 6 is a second schematic structural view of the housing with a cut-away portion.

FIG. 7 is a schematic diagram of the experimental solution stirrer working in conjunction with a beaker.

FIG. 8 is a schematic diagram of the operation of the experimental solution stirrer with the gas inlet and gas outlet in the open state.

FIG. 9 is a schematic diagram of the operation of the experimental solution stirrer with the air inlet and outlet closed.

FIG. 10 is a schematic view of the experimental solution stirrer at rest.

Fig. 11 is a schematic diagram of a modified structure of the diagonal flow wind wheel device.

Fig. 12 is a schematic view of another modified structure of the diagonal flow wind wheel device.

In the figure, 1, an air guide cover, 2, blades, 3, an air outlet hole, 4, a skirt part, 5, a handle, 6, a cover body, 7, an air inlet, 8, an air vent, 9, a control panel, 10, a handheld part, 11, a station mark, 12, a sliding ring, 13, a scale, 14, a machine body, 15, a main shaft, 16, an air inlet channel, 17, an annular groove, 18, an air outlet channel, 19, a motor, 20, an air outlet, 21, a controller, 22, a power supply component, 23, a sliding pin, 24, a beaker, 25, external threads, 26, internal threads, 27, an angle limiting mechanism, 28 and a spoke shaft.

Detailed Description

Referring to fig. 1-7, the utility model discloses a solution stirrer for experiment, which is mainly composed of a cover body 6 and a machine body 14; the cover body 6 is circular, and a through hole is axially formed in the center of the cover body and is used for covering the upper end opening of the beaker 24 so as to plug the upper end of the beaker 24; the machine body 14 is in a long cylinder shape, penetrates through the center of the cover body 6 through a through hole along the vertical direction, and can be adjusted up and down, and a locking mechanism capable of locking the machine body 14 and the cover body 6 is arranged between the machine body and the cover body; since the body 14 is perpendicular to the cover 6 and penetrates through the center of the cover 6, when the cover 6 covers the upper end of the beaker 24, the body 14 can be stably supported by the cover 6 and is located on the central axis of the beaker 24, and the lower end of the body 14 is located inside the beaker 24; the lower end of the machine body 14 is fixed with a wind scooper 1, the wind scooper 1 is in a shape of a bowl, namely the upper end is provided with a top part, the lower end is provided with an open lower port, and a plurality of air outlets 3 distributed at equal angles are uniformly distributed on the peripheral side wall around the wind scooper 1; an air inlet duct 16 and an air outlet duct 18 are arranged in the top of the air guiding cover 1 and the machine body 14, the lower port of the air guiding cover 1 is communicated with an air inlet 7 through the air inlet duct 16, all the air outlet holes 3 are communicated with an air outlet 20 through the air outlet duct 18, the air inlet 7 and the air outlet 20 are positioned at the upper part of the machine body 14, an air path switch capable of opening and closing the air inlet 7 and the air outlet 20 is arranged on the machine body 14, the air inlet duct 16 and the air outlet duct 18 are communicated with the outside when the air inlet 7 and the air outlet 20 are in an opening state, otherwise, the air inlet duct 16 and the air outlet duct 18 are not communicated with the outside; the lower part of the machine body 14 is provided with an oblique flow wind wheel device, the oblique flow wind wheel device is used for generating airflow above the liquid level so as to drive the solution in the beaker 24 to rotate, the oblique flow wind wheel device comprises a main shaft 15, a motor 19 and a plurality of blades 2, the main shaft 15 is supported by the machine body 14 and extends along the vertical direction, the motor 19 is arranged inside the machine body 14 and is used for driving the main shaft 15 to rotate, and the blades 2 are supported by the main shaft 15 and are radially distributed below the wind scooper 1; in the rotating process of the oblique flow wind wheel device, air is driven to do centrifugal motion, and meanwhile, the air is driven to axially move downwards, so that negative pressure is formed at the lower port of the wind scooper 1; the power supply assembly 22 for providing working voltage for the motor 19 and the controller 21 for controlling the working state of the motor 19 are arranged in the machine body 14, the control panel 9 connected with the controller 21 is arranged on the upper end face of the machine body 14, the start-stop and rotating speed of the motor 19 can be manually adjusted and preset through the controller 21 through the control panel 9, and due to the fact that the control panel 9 is located on the upper end face of the machine body 14, misoperation caused by the fact that the control panel 9 is touched when the machine body 14 is held can be effectively avoided.

The using method and the working principle of the solution stirrer for the experiment are as follows:

referring to fig. 7, the relative positions of the body 14 and the cover 6 are preset according to the amount of the solution in the beaker 24, so as to ensure that the blade 2 is located above the liquid level and keeps a proper distance between the blade 2 and the body 6 after the cover 6 is covered on the upper end of the beaker 24, so as to prevent the solution from contacting the blade 2 after rotating, and the body 6 and the body 14 are locked by a locking mechanism after the adjustment is completed; the cover body 6 is covered on the upper end of the beaker 24, at the moment, the machine body 14 is supported by the cover body 6 and is positioned on the central shaft of the beaker 24, and the blade 2 is positioned in the beaker 24 and is positioned above the liquid level; the motor 19 is adjusted to be in a running state through the control panel 9, namely, the diagonal flow wind wheel device starts running, on one hand, the blades 2 rotating at high speed drive air to do centrifugal motion, and under the limitation of the inner wall of the beaker 24, the air on the upper side of the liquid surface rotates under the stirring of the blades 2, on the other hand, the blades 2 rotating at high speed drive air to axially move towards the liquid surface direction, so that the driving force of air flow on the liquid surface is increased, the solution gradually rotates under the action of the air flow on the upper side of the liquid surface, and then the purpose of stirring the solution is achieved;

referring to fig. 8, if material volatilization needs to be avoided or heat loss needs to be reduced during stirring, the air path switch is adjusted to enable the air inlet 7 and the air outlet 20 to be in a closed state, at the moment, the inner cavity of the beaker 24 is in a closed state, and air above the liquid level performs microcirculation in the beaker 24 during the rotation process of the oblique flow wind wheel device, but does not flow to the outside, so that the purposes of avoiding material volatilization and reducing heat loss are achieved;

referring to fig. 9, if the stirring is performed to accelerate evaporation or rapid cooling of the solution, the air path switch is adjusted to open the air inlet 7 and the air outlet 20, the lower port of the wind scooper 1 is in a negative pressure state during rotation of the diagonal flow wind wheel device, the external air enters the beaker 24 through the air inlet 7, the air inlet duct 16 and the lower port of the wind scooper 1 in sequence, and the air in the beaker 24 is forced to be discharged to the outside through the air outlet 3, the air outlet duct 18 and the air outlet 20 in sequence under the driving of pressure, so that the air exchange between the inside of the beaker 24 and the outside is forcibly performed, and the purpose of accelerating evaporation or rapid cooling is realized more efficiently;

if the stirring is to uniformly mix the materials or prevent the precipitation, and no special requirement is required for the communication state between the beaker 24 and the outside, the gas circuit switch is not required to be adjusted; in the experimental process, the control panel 9 can be utilized to manually adjust or set the starting and stopping and the rotating speed of the motor 19 according to the actual situation, so as to realize better stirring effect.

Referring to fig. 7, in the process of stirring the solution, the solution stirrer for the experiment has no part to directly contact with the solution, so that the material is not adhered, on one hand, the experiment can be ensured to be more accurate, on the other hand, the working stability is improved, and the difficulty of the cleaning operation of the stirrer is reduced; in the implementation process, the machine body 14 can be designed based on the waterproof property, the outside of the experimental solution stirrer and the built-in gas circuit can be directly washed, and the convenience of cleaning operation is further improved.

The experimental solution stirrer is reasonable in structural design, small and compact, convenient to use and operate, stable in work, easy to implement, low in cost, capable of achieving a good stirring effect on a solution with low viscosity when matched with the beaker 24, and wide in application prospect.

Referring to fig. 1 and 7, in the solution stirrer for experiments, a handle 5 is provided at an upper side of the cap 6 to facilitate a user to hold the cap 6, and the handle 5 may be implemented based on a handle, a finger ring, or the like existing design.

Referring to fig. 2 and 7, in the present solution stirrer for experiments, the outer side wall of the upper part of the body 14 is provided with a handheld part 10 so that a user can hold the body 14, and the handheld part 10 can be an anti-slip pattern formed on the outer side wall of the body 14 or an anti-slip sleeve sleeved on the outer side of the body 14.

Referring to fig. 1, 2 and 7, in the solution stirrer for experiments, a graduated scale 13 is arranged on the outer side wall of the machine body 14, the graduated scale 13 is marked with a volume value, and when the cover body 6 is located at a position corresponding to the volume value V on the graduated scale 13, the relative position of the cover body 6 and the machine body 14 is suitable for stirring the solution with the volume V in the beaker 24; therefore, the relative position of the cover body 6 and the machine body 14 can be quickly adjusted according to the known volume of the liquid in the beaker 24, so that the pre-adjustment of the experimental solution stirrer before use is more convenient and quicker.

In the solution stirrer for the experiment, the air inlet 7 and the air outlet 20 are positioned at the upper part of the machine body 14, the opening and closing states of the air inlet 7 and the air outlet 20 can be adjusted by the air circuit switch, and the air circuit switch can be implemented by adopting the conventional structures such as an air valve, a fluid switch and the like; simultaneously, for the structure that makes air inlet 7, gas outlet 20 and gas circuit switch simpler, gas circuit switch's regulation operation is more convenient, the utility model discloses provide an embodiment different from prior art to above-mentioned part, concrete structure is:

referring to fig. 1, 5, 6, 8 and 9, a circle of concave annular groove 17 is formed in the side wall of the upper part of the machine body 14, and the air inlet 7 and the air outlet 20 are formed in the annular groove 17; a slip ring 12 which can only rotate relative to the annular groove 17 is sleeved outside the annular groove, and the annular wall of the slip ring 12 is provided with a vent hole 8; when the slip ring 12 is rotated to the position that the vent hole 8 is positioned at the outer sides of the air inlet 7 and the air outlet 20, the air inlet 7 and the air outlet 20 are communicated with the outside, namely the air inlet 7 and the air outlet 20 are in an opening state; when the slip ring 12 rotates to the annular wall to seal the air inlet 7 and the air outlet 20, namely the air inlet 7 and the air outlet 20 are in a closed state; in order to facilitate the operation, the outer side wall of the sliding ring 12 is provided with anti-slip threads, and the sliding ring 12 and the machine body 14 are marked with station marks 11.

Referring to fig. 2, 7 and 10, in the solution stirrer for experiments, the lower side of the cover body 6 is provided with a skirt portion 4 extending downwards in a ring shape, when the cover body 6 covers the upper port of the beaker 24, the skirt portion 4 is in contact with the inner wall of the beaker 24, and the positions of the cover body 6 and the machine body 14 are adjusted to enable the wind scooper 1 and the blades 2 to be accommodated in the inner cavity of the skirt portion 4; skirt portion 4's setting is used to have three, one of them is, during solution agitator and beaker 24 cooperation work for the experiment, lid 6 and skirt portion 4 cooperation can realize better shutoff effect to beaker 24 upper end, its two do, skirt portion 4 can prevent to produce the displacement with beaker 24 in the solution agitator course of work for the experiment, improve the stability of solution agitator work for the experiment, its three is, when solution agitator does not use for the experiment, can accomodate parts such as wind scooper 1, blade 2 in the 4 inner chambers of skirt portion, do benefit to more and place, also play certain guard action to blade 2 simultaneously.

Referring to fig. 3 and 7, in the solution stirrer for experiments, the locking mechanism is used for locking the relative positions of the machine body 14 and the cover body 6 so as to ensure that the cover body 6 can provide stable support for the machine body 14 during the working process; as far as the prior art is concerned, the locking mechanism has various embodiments, for example, it can be implemented based on the structure of the spring and the sliding pin 23, or it can be implemented by using a locking bolt; the utility model provides a structure is simpler, more is favorable to adjusting the preferred embodiment of organism 14 and 6 relative positions of lid, and the concrete structure who adopts is:

referring to fig. 10, the outer contour of the body 14 is cylindrical, and the locking mechanism includes an external thread 25 disposed on the outer side wall of the body 14, and an internal thread 26 disposed on the cover 6 and engaged with the external thread 25; the body 14 and the cover 6 form a screw rod mechanism and have axial self-locking characteristics, the body 14 and the cover 6 cannot be driven to move relatively by axial stress in the working process of the experimental solution stirrer, and the torque force applied to the body 14 by the diagonal flow wind wheel device is small and is generally not enough to drive the body 14 and the cover 6 to rotate relatively; meanwhile, in the implementation process, the resistance of the cover body 6 and the machine body 14 in relative rotation is reasonably adjusted, so that the relative rotation of the machine body 14 and the cover body 6 in the working process of the experimental solution stirrer can be avoided; when the experimental solution stirrer is preset, the axial relative position of the cover 6 and the body 14 can be adjusted by rotating the cover and the body.

Referring to fig. 7 and 8, in the solution stirrer for experiments, in the rotation process, the oblique flow wind wheel device drives air to do centrifugal motion, and simultaneously drives the air to axially move downwards to form negative pressure at the lower port of the wind scooper 1, so that the working mode of the oblique flow wind wheel device is consistent with that of a wind wheel in the existing oblique flow fan in principle, and the oblique flow wind wheel device can be implemented by referring to a wind wheel structure in the oblique flow fan in the prior art.

Further, in the solution stirrer for experiments, if the diagonal flow wind wheel device is implemented by adopting the prior art, generally speaking, the diagonal flow wind wheel device can only rotate towards one preset direction to realize the effect of driving the air to axially move downwards, and the diagonal flow wind wheel device rotates towards the other direction to drive the air to axially move upwards, so that the solution stirrer for experiments has specific requirements on the rotating direction of the diagonal flow wind wheel device in the working process and has great limitation on the stirring mode of the solution; therefore, the utility model discloses two kinds of improvement structures to diagonal flow wind wheel device are still provided:

firstly, referring to fig. 2 and 11, a plurality of spoke shafts 28 perpendicular to the main shaft 15 and radially distributed below the wind scooper 1 are fixed on the main shaft 15; the blades 2 are in a long strip plate shape, the upper ends of the blades 2 are rotatably connected with the spoke shafts 28, and an angle limiting mechanism 27 is arranged between the upper ends of the blades 2 and the spoke shafts 28, so that the blades 2 can swing in an equal angle in a small range from a vertical state to two sides around the spoke shafts 28; therefore, when the main shaft 15 rotates in any direction, the blades 2 correspondingly swing slightly around the spoke shaft 28 under the action of air reaction force, so that the windward sides of the blades 2 are inclined to drive the air to move axially downwards;

secondly, referring to fig. 12, the cross section of the blade 2 is an inverted triangle, so that when the main shaft 15 rotates in any direction, the inclined windward side of the blade 2 can drive the air to move axially downwards;

after oblique flow wind wheel device adopted both above-mentioned to improve the structure, no matter oblique flow wind wheel device is rotatory to any one direction, the homoenergetic is enough driven the air and is centrifugal motion, drives air axial downstream simultaneously, based on this characteristic, can adopt following mode in the experimental solution agitator working process: after the motor 19 is operated by using the control panel 9, the controller 21 automatically makes the motor 19 alternately rotate in the forward direction and the reverse direction, and the solution in the beaker 24 rotates in different directions alternately under the action of the oblique flow wind wheel device, so as to realize better stirring effect.

Claims (6)

1. The utility model provides a solution agitator for experiments which characterized in that: the beaker comprises a circular cover body used for covering the upper port of the beaker and a long cylindrical machine body, wherein the machine body penetrates through the center of the cover body along the vertical direction and can be adjusted up and down, and a locking mechanism capable of locking the machine body and the cover body is arranged between the machine body and the cover body; the lower end of the machine body is fixed with a bowl-shaped wind scooper, and a plurality of air outlets are uniformly distributed on the outer edge side wall around the wind scooper; an air inlet channel and an air outlet channel are arranged in the machine body and the air guide cover, the lower port of the air guide cover is communicated with an air inlet through the air inlet channel, all air outlet holes are communicated with an air outlet through the air outlet channel, the air inlet and the air outlet are positioned at the upper part of the machine body, and the machine body is provided with an air path switch which can open and close the air inlet and the air outlet; the lower part of the machine body is provided with an oblique flow wind wheel device which is used for generating airflow above the liquid level to drive the solution to rotate, and the oblique flow wind wheel device comprises a main shaft which is supported by the machine body and extends along the vertical direction, a motor which is arranged in the machine body and is used for driving the main shaft to rotate, and a plurality of blades which are supported by the main shaft and are radially distributed below the wind scooper; the inclined flow wind wheel device drives air to do centrifugal motion in the rotating process, and simultaneously drives the air to axially move downwards so that negative pressure is formed at the lower port of the wind scooper; a power supply assembly for providing working voltage for the motor and a controller for controlling the working state of the motor are arranged in the machine body, and a control panel connected with the controller is arranged on the upper end face of the machine body.

2. The laboratory solution stirrer according to claim 1, wherein: a handle is arranged on the upper side of the cover body.

3. The laboratory solution stirrer according to claim 1, wherein: the outer side wall of the upper part of the machine body is provided with a handheld part.

4. The laboratory solution stirrer according to claim 1, wherein: the outer side wall of the beaker body is provided with a graduated scale, the graduated scale is marked with a volume value, and when the position of the cover body corresponds to the volume value on the graduated scale and is V, the relative position of the cover body and the beaker body is suitable for stirring the solution with the volume of V in the beaker.

5. The laboratory solution stirrer according to claim 1, wherein: the lower side of the cover body is provided with an annular skirt part extending downwards, when the cover body covers the upper port of the beaker, the skirt part is contacted with the inner wall of the beaker, and the positions of the cover body and the machine body are adjusted to enable the wind scooper and the blades to be accommodated in the inner cavity of the skirt part.

6. The laboratory solution stirrer according to claim 1, wherein: the outer contour of the machine body is cylindrical, and the locking mechanism comprises an external thread arranged on the outer side wall of the machine body and an internal thread arranged on the cover body and matched with the external thread.

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