CN111575158A

CN111575158A - Chemical experiment device

Info

Publication number: CN111575158A
Application number: CN202010445566.0A
Authority: CN
Inventors: 李晓艳
Original assignee: Zibo Vocational Institute
Current assignee: Zibo Vocational Institute
Priority date: 2020-05-24
Filing date: 2020-05-24
Publication date: 2020-08-25

Abstract

The invention relates to a chemical experimental device, which comprises a culture seat (100), a culture dish (200) and a stirring part (300), wherein a driving mechanism is arranged in the culture seat (100), and the driving mechanism drives at least three bending rods (309) arranged in the culture dish (200) to move up and down, transversely and circumferentially through a planetary gear set so as to stir liquid in the culture dish (200). According to the invention, the driving mechanism of the stirring part (300) drives the at least three bending rods (309) to move up and down, move transversely and move circumferentially to stir the liquid in the culture dish (200), so that the agglomerated bacteria attached to the bottom or the side wall of the culture dish can be scattered by the impact force of the liquid in the culture dish (200) on the stroke in the directions of the X axis and the Y axis, and meanwhile, the concentration of the nutrient solution of the liquid in the culture dish (200) can be more uniform through the circumferential rotation of the culture dish, and the culture of the bacteria, particularly the culture of the easily agglomerated bacteria, is facilitated.

Description

Chemical experiment device

Technical Field

The invention relates to an experimental device, in particular to a device for chemical experiments.

Background

Chemical experiments include bacterial experiments, in which bacteria are cultured in a culture medium. In order to ensure that the culture solution can be uniformly supplied to the bacteria and to prevent the bacteria inside the cake from being absorbed into the nutrient solution due to the bacteria being excessively agglomerated, it is necessary to continuously stir the nutrient solution while culturing the bacteria.

The traditional stirring mode is manual stirring or electric spiral fan blade stirring. However, under high temperature, high pressure, high radiation, etc., manual stirring is not possible. The electric spiral fan blade stirring usually only forms a regular spiral, so that a messy turbulent flow like a natural lake and a sea cannot be formed, stirring and impact force cannot be provided in the directions of an X axis and a Y axis, so that agglomerated bacteria can be separated, and the turbulent flow is formed, so that the nutrient solution can be more uniformly configured in a culture dish.

Therefore, a chemical experiment apparatus capable of stirring bacteria more efficiently is needed.

Disclosure of Invention

The invention aims to provide a chemical experimental device capable of stirring bacteria more efficiently.

The invention relates to a chemical experimental device, which comprises

The culture seat is fixed with the frame;

a culture dish fixed to an upper portion of the culture seat;

and a stirring part, wherein a driving mechanism is arranged in the culture seat, and the driving mechanism drives at least three bending rods arranged in the culture dish to move up and down, transversely and circumferentially through a planetary gear set so as to stir the liquid in the culture dish.

The invention relates to a chemical experimental device, wherein a driving mechanism is a motor, and a sealing ring which is used for preventing water and can enable the sealing ring to rotate is arranged at the communication position of an output shaft of the motor and a culture dish.

The invention relates to a chemical experimental device, wherein a stirring part comprises a motor, an output shaft, a gear ring, a first gear, a second gear, a first supporting column, a first rotary table, a bending rod, a first limiting sheet, a second rotary table, a second supporting column, a connecting ring, a first annular guide rail, a first guide hole and a second guide hole;

the motor is fixed with the bottom inside the culture seat, the culture seat is provided with a first through hole, an output shaft of the motor is coaxially fixed with the first gear, and a sealing ring is arranged between the outer circumferential surface of the output shaft of the motor and the inner circumferential surface of the first through hole;

the first gear is engaged with the second gear, the second gear is engaged with teeth on the inner circumferential surface of a gear ring, the lower end surface of the gear ring is fixed with the upper surface of the culture seat, the gear ring is coaxially configured with the first gear, the upper surface of the second gear is fixed with the lower end of the first support column, the upper end of the first support column is fixed with the first rotary disc, the first rotary disc is provided with at least three first guide holes which are uniformly distributed along the circumferential direction of the first rotary disc, the lower part of the bending rod moves along the first guide holes, the upper part of the bending rod moves along the second guide holes which are arranged on the second rotary disc, the lower end and the upper end of the bending rod are respectively fixed with a first limiting piece and a second limiting piece, the second rotary disc is fixed with one end of the second support column, and the other end of the second support column is installed on the connecting ring through a bearing, the connecting ring moves along the first annular guide rail, the first annular guide rail and the first gear are coaxially arranged, and the first annular guide rail is fixed with the upper surface of the culture dish.

The invention relates to a chemical experimental device, wherein a first connecting rod, a first sliding block and a second arc-shaped guide rail are arranged at the lower part of a second gear, the upper end of the first connecting rod is coaxially fixed with the lower surface of the second gear, the lower end of the first connecting rod is coaxially fixed with the first sliding block, an annular opening matched with the shape of the first connecting rod is formed in the upper part of the second arc-shaped guide rail, and an annular groove matched with the shape of the first sliding block is formed in the lower part of the second arc-shaped guide rail.

The invention relates to a chemical experimental device, wherein at least three groups of second gears, first supporting columns, first rotating discs, at least three bending rods, first limiting pieces, second rotating discs and second supporting columns can be uniformly distributed along the circumferential direction of the first gears.

The invention relates to a chemical experimental device, wherein the shapes of the surfaces of a first rotating disc and a second rotating disc are circular, rectangular or triangular.

The invention relates to a chemical experimental device, wherein a sealing ring is made of butadiene acrylonitrile rubber.

The chemical experiment device is different from the prior art in that the liquid in the culture dish is stirred by driving the at least three bending rods to move up and down, transversely and circumferentially by the driving mechanism of the stirring part, so that agglomerated bacteria attached to the bottom or the side wall of the culture dish can be scattered by the impact force of the liquid stroke in the culture dish in the directions of an X axis and a Y axis, and meanwhile, the concentration of nutrient solution of the liquid in the culture dish can be more uniform by the circumferential rotation of the nutrient solution, thereby being beneficial to the culture of the bacteria, in particular to the culture of the easily agglomerated bacteria. In addition, the invention can culture bacteria at will under the conditions of high temperature, high pressure, high radiation and the like, so that the user can obtain safety.

The chemical experimental device of the present invention is further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of a chemical experimental apparatus;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1;

fig. 4 is a partial isometric view of fig. 1.

Detailed Description

As shown in FIGS. 1 to 4, referring to FIGS. 1 and 4, a chemical experimental apparatus of the present invention comprises

A culture seat 100 fixed to the frame;

a culture dish 200 fixed to an upper portion of the culture tray 100;

and a stirring section 300 disposed in the culture dish 100, wherein the driving mechanism stirs the liquid in the culture dish 200 by driving at least three bending rods 309 disposed in the culture dish 200 to move up and down, laterally, and circumferentially through a planetary gear set.

In the present invention, the driving mechanism of the stirring part 300 drives the at least three bending rods 309 to move up and down, move laterally, and move circumferentially to stir the liquid in the culture dish 200, so that the impact force on the liquid stroke in the culture dish 200 in the directions of the X axis and the Y axis can not only disperse the caked bacteria attached to the bottom or the side wall of the culture dish, but also make the concentration of the nutrient solution in the liquid in the culture dish 200 more uniform through the circumferential rotation, which is beneficial to the culture of bacteria, especially the culture of bacteria easy to cake. In addition, the invention can culture bacteria at will under the conditions of high temperature, high pressure, high radiation and the like, so that the user can obtain safety.

As a further explanation of the present invention, referring to fig. 3, the driving mechanism is a motor 301, and an output shaft 302 of the motor 301 is provided with a sealing ring 303 for preventing water and enabling rotation thereof at a communication position with the culture dish 200.

According to the invention, the motor 301 can be prevented from contacting bacteria and culture solution in the culture dish 200 through the sealing ring 303, and meanwhile, the torque of the motor 301 can be transmitted into the culture dish 200 to drive the planetary gear set.

The motor 301 is connected with a power module, and the power module is connected with a circuit control module. The user can control the magnitude and direction of the current of the power module of the motor 301 through the circuit control module to adjust the rotation speed and direction of the motor.

The sealing ring 303 may be the same as or similar to a sealing ring on a common water pump or a screw pump.

As a further explanation of the present invention, referring to fig. 1, 2 and 3, the stirring part 300 includes a motor 301, an output shaft 302, a gear ring 304, a first gear 305, a second gear 306, a first supporting column 307, a first rotating disk 308, a bending rod 309, a first limiting piece 310, a second limiting piece 311, a second rotating disk 312, a second supporting column 313, a connecting ring 314, a first annular guide 315, a first guide hole 316 and a second guide hole 317;

the motor 301 is fixed to the bottom of the interior of the culture base 100, the culture base 100 is provided with a first through hole, an output shaft 302 of the motor 301 is coaxially fixed to a first gear 305, and a sealing ring 303 is arranged between the outer circumferential surface of the output shaft 302 of the motor 301 and the inner circumferential surface of the first through hole 329;

the first gear 305 is engaged with the second gear 306, the second gear 306 is engaged with the teeth of the inner circumferential surface of the gear ring 304, the lower end surface of the gear ring 304 is fixed with the upper surface of the culture base 100, the gear ring 304 is coaxially arranged with the first gear 305, the upper surface of the second gear 306 is fixed with the lower end of the first support column 307, the upper end of the first support column 307 is fixed with the first rotary plate 308, the first rotary plate 308 is provided with at least three first guide holes 316 uniformly distributed along the circumferential direction, the lower part of the bending rod 309 moves along the first guide holes 316, the upper part of the bending rod 309 moves along the second guide hole provided by the second rotary plate 312, the lower end and the upper end of the bending rod 309 are respectively fixed with a first limiting plate 310 and a second limiting plate 311, the second rotary plate 312 is fixed with one end of the second support column 313, the other end of the second support column 313 is mounted on the connection ring 314 through a bearing, the connection ring 314 moves along the first annular rail 315, the first annular rail 315 is coaxially disposed with the first gear 305, and the first annular rail 315 is fixed to the upper surface of the culture dish 200.

According to the invention, the motor 301 can drive the first gear 305 to rotate when rotating through the stirring part 300, and the second gear 306 can simultaneously realize the effects of rotation and revolution, the rotation of the second gear 306 drives the first turntable 308 to rotate, and at least three bending rods 309 alternately move up and down and transversely under the bidirectional constraint of the first turntable 308 and the second turntable 312; the revolution of the second gear 306 drives at least three bending rods 309 to rotate along the axial direction of the first gear 305 and drives the connection ring 314 to rotate, so that spiral turbulence, X-axis turbulence and Y-axis turbulence are simultaneously formed in the culture dish 200, thereby facilitating scattering of agglomerated bacteria attached to the lower surface and the side surface of the culture dish 200 and making the concentration of the culture solution in various places in the culture dish 200 uniform. In addition, the user can freely and remotely control the motor 301, so that the invention can be used for chemical experiments in the environments of high temperature, high pressure, high radiation and the like.

Explaining in detail how the bending rods 309 move up and down, laterally, circumferentially in turn: the rotation of the second gear 306 causes the first rotary disc 308 to rotate, so that the upper parts of the at least three bending rods 309 move laterally in turn, and the second rotary disc 312 rotates due to the revolution of the second gear 306, so that the at least three bending rods 309 can move up and down and along the circumferential direction of the first gear 305.

The first and second limiting

pieces

310 and 311 can prevent the bending rod 309 from falling off from the first and second rotating

discs

308 and 312, and can increase the contact area with the culture solution during the transverse and longitudinal movement to generate a larger turbulent flow. It is like a flipper when a person is diving.

The bending bar 309 is an L-shaped bar, the lower portion of which is a vertical bar, and the upper portion of which is a horizontal bar.

Wherein the bacteria can be cultured in a circular ring shape formed by the outer circumferential surface of the connection ring 314 and the inner circumferential surface of the culture dish, or can be cultured at any position of the whole culture dish 200.

The first and

second guide holes

316, 317 are through holes.

The first gear 305 and the second gear 306 are both external gears, and the ring gear 304 is an internal gear, which constitutes a planetary gear set.

The other connection mode of the second support column 313 and the connection ring 314 can also be: the connecting ring 314 is fixed to a second motor, an output shaft of the second motor is fixed to the second supporting column 313, the second supporting column 313 is coaxially fixed to the second turntable 312, and the second motor may be a waterproof motor. The second support column 313 can rotate autonomously in the above manner, so that the lifting and lowering of the bending rods 309 are more powerful, and the caked bacteria at the bottom of the culture dish 200 can be hit better in the vertical direction.

As a further explanation of the present invention, referring to fig. 1 and 3, a first connecting rod 321, a first slider 322, and a second arc-shaped guide rail 323 are disposed at a lower portion of the second gear 306, an upper end of the first connecting rod 321 is coaxially fixed with a lower surface of the second gear 306, a lower end of the first connecting rod 321 is coaxially fixed with the first slider 322, an annular opening matching with the first connecting rod 321 is disposed at an upper portion of the second arc-shaped guide rail 323, and an annular groove matching with the first slider is disposed at a lower portion of the second arc-shaped guide rail 323.

In the present invention, the second gear 306 supports the first support column 307 and at least three bending rods 309, and thus the medicine is subjected to a large force. Then, in order to make it not easy to fall off the planetary gear set, it is rotatably fixed on the incubator 100 by the first connecting rod 321, the first slider 322, and the second arc rail 323, so that it can bear more force.

The first slider 322 may be disc-shaped or circular truncated cone-shaped, and the annular groove may be a rectangular-shaped annular groove or a trapezoidal-shaped annular groove.

In order to ensure that the connection ring 314 can rotate smoothly, the connection ring can also be configured by using the first connection rod 321, the first slider 322, and the second arc-shaped guide rail 323, which are shaped as described above, and are not described herein again.

For further explanation of the present invention, referring to fig. 2, the second gear 306, the first supporting column 307, the first rotating disc 308, the at least three bending rods 309, the first limiting plate 310, the second limiting plate 311, the second rotating disc 312, and the second supporting column 313 may be uniformly distributed in at least three groups along the circumferential direction of the first gear 305.

According to the invention, at least three groups of parts can increase the beating of the stirring part 300 to the caked bacteria in all directions in the culture dish 200 better, and the stirring efficiency and the culture effect are increased.

For further explanation of the present invention, referring to fig. 4, the surface shapes of the first turntable 308 and the second turntable 312 are circular, rectangular or triangular.

The first rotating disk 308 and the second rotating disk 312 with the shapes can keep a stable center of gravity when the rotating disks rotate. When the surface of the culture medium is rectangular or triangular, the culture medium can be stirred to form more turbulence so that the concentration of the culture medium is more uniform.

The shapes of the surfaces of the first rotating disk 308 and the second rotating disk 312 are preferably triangular, so that the stirring effect of the first rotating disk and the second rotating disk on the culture solution is increased when the first rotating disk and the second rotating disk rotate, more turbulence is formed, and the concentration of the culture solution is more uniform.

As a further explanation of the invention, the sealing ring 303 is made of nitrile rubber.

The sealing ring made of the materials can ensure the sealing performance of the sealing ring and ensure that the output shaft 302 of the motor 301 can rotate.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A chemical assay device, characterized in that: comprises that

A culture base (100) fixed to the frame;

a culture dish (200) fixed to the upper part of the culture tray (100);

and a stirring unit (300) which is disposed in the culture tray (100) and which stirs the liquid in the culture dish (200) by driving the up-and-down movement, the lateral movement, and the circumferential movement of at least three bending rods (309) disposed in the culture dish (200) by means of a planetary gear set.

2. A chemical assay device according to claim 1, wherein: the driving mechanism is a motor (301), and a sealing ring (303) which is used for preventing water and can rotate is arranged at the position where an output shaft (302) of the motor (301) is communicated with the culture dish (200).

3. A chemical assay device according to claim 2, wherein: the stirring part (300) comprises a motor (301), an output shaft (302), a gear ring (304), a first gear (305), a second gear (306), a first supporting column (307), a first rotating disc (308), a bending rod (309), a first limiting sheet (310), a second limiting sheet (311), a second rotating disc (312), a second supporting column (313), a connecting ring (314), a first annular guide rail (315), a first guide hole (316) and a second guide hole (317);

the motor (301) is fixed to the bottom of the interior of the culture seat (100), a first through hole is formed in the culture seat (100), an output shaft (302) of the motor (301) is coaxially fixed with the first gear (305), and a sealing ring (303) is arranged between the outer circumferential surface of the output shaft (302) of the motor (301) and the inner circumferential surface of the first through hole (329);

the first gear (305) is engaged with a second gear (306), the second gear (306) is engaged with teeth on the inner circumferential surface of a gear ring (304), the lower end surface of the gear ring (304) is fixed with the upper surface of the culture seat (100), the gear ring (304) is coaxially arranged with the first gear (305), the upper surface of the second gear (306) is fixed with the lower end of the first support column (307), the upper end of the first support column (307) is fixed with the first turntable (308), the first turntable (308) is provided with at least three first guide holes (316) uniformly distributed along the circumferential direction, the lower part of the bending rod (309) moves along the first guide holes (316), the upper part of the bending rod (309) moves along the second guide hole (317) formed in the second turntable (312), and the lower end and the upper end of the bending rod (309) are respectively fixed with a first limiting piece (310) and a second limiting piece (310), The second limiting piece (311), the second rotating disc (312) is fixed to one end of the second supporting column (313), the other end of the second supporting column (313) is mounted on the connecting ring (314) through a bearing, the connecting ring (314) moves along the first annular guide rail (315), the first annular guide rail (315) and the first gear (305) are coaxially arranged, and the first annular guide rail (315) is fixed to the upper surface of the culture dish (200).

4. A chemical laboratory apparatus according to claim 3, wherein: the lower part of the second gear (306) is provided with a first connecting rod (321), a first sliding block (322) and a second arc-shaped guide rail (323), the upper end of the first connecting rod (321) is coaxially fixed with the lower surface of the second gear (306), the lower end of the first connecting rod (321) is coaxially fixed with the first sliding block (322), the upper part of the second arc-shaped guide rail (323) is provided with an annular opening matched with the shape of the first connecting rod (321), and the lower part of the second arc-shaped guide rail (323) is provided with an annular groove matched with the shape of the first sliding block.

5. A chemical laboratory apparatus according to claim 4, wherein: the second gear (306), the first supporting column (307), the first rotating disc (308), the at least three bending rods (309), the first limiting sheet (310), the second limiting sheet (311), the second rotating disc (312) and the second supporting column (313) can be uniformly distributed in at least three groups along the circumferential direction of the first gear (305).

6. A chemical laboratory apparatus according to claim 5, wherein: the shapes of the surfaces of the first rotating disc (308) and the second rotating disc (312) are circular, rectangular or triangular.

7. A chemical assay device, according to claim 6, wherein: the sealing ring (303) is made of butadiene acrylonitrile rubber.