阅读说明：本技术 一种模块化平板涂布装置 (Dull and stereotyped coating unit of modularization ) 是由 董金城 李荔萍 周才凡 马文杰 杨梦凡 于 2019-10-25 设计创作，主要内容包括：本发明提供了一种模块化平板涂布装置,包括动力机构和涂布机构：动力机构包括第一齿轮、电机、第一模块架,第一齿轮与电机通过电机轴连接,电机固定在第一模块架上,第一模块架上具有第一装配部；涂布机构包括设置在夹持装置上的涂布棒、旋转工作台、轴承、第二齿轮、第二模块架,轴承固定在第二模块架底部与转轴的一端连接,转轴的另一端穿越第二模块架上部与旋转工作台固定连接,夹持装置固定在第二模块架上部旋转工作台一侧,第二齿轮与转轴传动连接,第二模块架上具有第二装配部,用于与第一装配部装配连接；第一装配部与第二装配部装配连接时,第一齿轮与第二齿轮啮合连接。装置解决了目前手工涂布作业效率低、涂布效果不稳定的问题。(The invention provides a modular flat plate coating device, which comprises a power mechanism and a coating mechanism, wherein the power mechanism comprises: the power mechanism comprises a first gear, a motor and a first module frame, wherein the first gear is connected with the motor through a motor shaft, the motor is fixed on the first module frame, and a first assembling part is arranged on the first module frame; the coating mechanism comprises a coating rod, a rotary workbench, a bearing, a second gear and a second module frame which are arranged on the clamping device, the bearing is fixed at the bottom of the second module frame and connected with one end of a rotating shaft, the other end of the rotating shaft penetrates through the upper part of the second module frame and is fixedly connected with the rotary workbench, the clamping device is fixed on one side of the rotary workbench at the upper part of the second module frame, the second gear is in transmission connection with the rotating shaft, and the second module frame is provided with a second assembling part which is used for being assembled and connected with the first assembling part; when the first assembling portion is assembled and connected with the second assembling portion, the first gear is meshed and connected with the second gear. The device solves the problems of low efficiency and unstable coating effect of the existing manual coating operation.)

1. The modular flat plate coating device is characterized by comprising a power mechanism and a coating mechanism:

the power mechanism comprises a first gear, a motor and a first module frame, wherein the first gear is connected with the motor through a motor shaft, the motor is fixed on the first module frame, and a first assembling part is arranged on the first module frame;

the coating mechanism comprises a coating rod, a rotary workbench, a bearing, a second gear and a second module frame which are arranged on the clamping device, the bearing is fixed at the bottom of the second module frame and connected with one end of a rotating shaft, the other end of the rotating shaft penetrates through the upper part of the second module frame and is fixedly connected with the rotary workbench, the clamping device is fixed on one side of the rotary workbench at the upper part of the second module frame, the second gear is in transmission connection with the rotating shaft, and the second module frame is provided with a second assembling part which is used for being assembled and connected with the first assembling part;

when the first assembling portion is assembled and connected with the second assembling portion, the first gear is meshed and connected with the second gear.

2. The modular flat plate coating apparatus of claim 1, wherein the second module rack further has a first mounting portion thereon.

3. The modular flat plate coating apparatus of claim 1, wherein the first gear projects radially beyond an outer edge of the first module carrier and the second gear projects radially beyond an outer edge of the second module carrier.

4. The modular flat plate coating apparatus of claim 1, wherein the first and second module racks have top and bottom plates, respectively, and the first and second mounting portions are located on the top and bottom plates of the corresponding module rack, respectively.

5. The modular flat plate coating apparatus of claim 1, wherein the first and second assembling portions are snap structures corresponding to a male and a female respectively.

6. The modular flat plate coating apparatus of claim 1, wherein the holding means is a hinge mechanism by which the coating rod is disposed on one side of the rotary table.

7. The modular flat plate coating apparatus of claim 1, wherein said first module rack further has a second mounting portion thereon.

8. The modular flat plate coating apparatus of claim 1 wherein the coating rod is a metal coating rod.

9. The modular flat plate coating apparatus of claim 1, wherein the coating rod has a coating end length less than the diameter of the culture dish.

10. The modular flat plate coating apparatus of claim 9, wherein the coating rod has a coating end length of 85% of the diameter of the culture dish.

Technical Field

The invention relates to the technical field of biochemical instruments, in particular to a bacterial liquid coating device.

Background

Bacterial liquid coating is an important link in the process of researching microorganisms, and most of the bacterial liquid coating is finished by manual coating at present. However, manual operation is tedious, time-consuming, laborious, and highly repetitive, and the uniformity of coating on the same batch of flat plates is difficult to maintain consistently. In order to improve the working efficiency of plate coating, reduce the labor intensity of experimenters, ensure the coating consistency of the same batch of plates under the condition of ensuring that each plate can be uniformly coated, and also ensure that the possibility of cross infection between the plates can not be generated, thereby ensuring the accuracy of experimental data, therefore, the operation of coating the plates by using a machine instead of manpower is very important.

So far, the research results for automatic or semi-automatic inoculators at home and abroad are not yet capable of being widely applied, and most of the automatic inoculators available in the market are in the stage of gradual improvement and perfection. Therefore, automatic or semi-automatic plate coating instruments are rarely available in large-scale microbial laboratories at home and abroad, and almost no small-scale and medium-scale microbial laboratories are equipped with automatic or semi-automatic plate coating instruments. So far, a flat coating machine which is suitable for small and medium laboratories, low in cost and good in performance does not exist.

The automatic bacterial coating inoculator of the present flat plate coater DW-16 type in China is provided with a rotary worktable, and a culture dish is placed on the worktable. When coating, the diluted bacteria is dropped in the center of the culture dish, and the bacteria liquid is dispersed on the surface of the agar by the centrifugal force generated by the rotation of the rotary worktable, thereby achieving the purpose of coating. Such an applicator has the following problems: (1) because the effect of centrifugal force, most fungus liquid can pile up around the culture dish wall under the effect of centrifugal force, leads to too densely when the bacterium grows into the bacterial colony, can't count and observe the bacterial colony characteristic. The significance of the existence of the dilution coating flat plate method is lost. (2) One machine can only complete the coating of one flat plate at the same time, and the efficiency is not high.

Disclosure of Invention

In view of the above, the present invention has been developed to provide a modular flat plate coating apparatus that overcomes, or at least partially solves, the above-mentioned problems.

The invention provides a modular flat plate coating device, which comprises a power mechanism and a coating mechanism, wherein the power mechanism comprises:

the power mechanism comprises a first gear, a motor and a first module frame, wherein the first gear is connected with the motor through a motor shaft, the motor is fixed on the first module frame, and a first assembling part is arranged on the first module frame;

the coating mechanism comprises a coating rod, a rotary workbench, a bearing, a second gear and a second module frame which are arranged on the clamping device, the bearing is fixed at the bottom of the second module frame and connected with one end of a rotating shaft, the other end of the rotating shaft penetrates through the upper part of the second module frame and is fixedly connected with the rotary workbench, the clamping device is fixed on one side of the rotary workbench at the upper part of the second module frame, the second gear is in transmission connection with the rotating shaft, and the second module frame is provided with a second assembling part which is used for being assembled and connected with the first assembling part;

when the first assembling portion is assembled and connected with the second assembling portion, the first gear is meshed and connected with the second gear.

In an alternative embodiment, the second module frame further has a first fitting portion thereon.

In an alternative embodiment, the first gear projects radially beyond an outer edge of the first module carrier and the second gear projects radially beyond an outer edge of the second module carrier.

In an alternative embodiment, the first and second module racks have top and bottom plates, respectively, and the first and second fitting parts are located on the corresponding top and bottom plates, respectively.

In an alternative embodiment, the first assembling portion and the second assembling portion are respectively a snap structure corresponding to a male portion and a female portion.

In an alternative embodiment, the holding means is a hinge mechanism by which the coating rod is arranged on the side of the rotary table.

In an alternative embodiment, the first module frame further has a second fitting portion thereon.

In an alternative embodiment, the coating rod is a metal coating rod.

In an alternative embodiment, the length of the coated end of the coating rod is less than the diameter of the culture dish.

In an alternative embodiment, the length of the coated end of the coating rod is 85% of the diameter of the culture dish.

The invention provides a modular flat plate coating device, which comprises a power mechanism and a coating mechanism, wherein the power mechanism comprises:

the power mechanism is used for providing power and comprises a first gear, a motor and a first module frame, wherein the first gear is connected with the motor through a motor shaft and rotates under the driving of the motor;

the coating mechanism comprises a coating rod arranged on the clamping device, a rotary workbench, a bearing, a second gear and a second module frame, the bearing is fixed at the bottom of the second module frame for providing stable support and is connected with one end of a rotating shaft, the rotating shaft can rotate freely, the other end of the rotating shaft penetrates through the upper part of the second module frame and is fixedly connected with the rotary workbench, the rotating shaft rotates to drive the rotary workbench to rotate, the clamping device is fixed on one side of the rotary workbench on the upper part of the second module frame, so that the coating rod arranged on the clamping device is placed in a culture dish on the rotary workbench for coating, the second gear is in transmission connection with the rotating shaft, the rotating shaft rotates along with the rotating gear, and the second module frame is provided with a second assembling part for being assembled and connected with the first assembling part; when coating is carried out, the first assembling part and the second assembling part are assembled and connected, the first gear is meshed and connected with the second gear, the power mechanism is started, and the coating mechanism can realize automatic coating under the driving of the power mechanism.

Compared with the prior art, the invention has the technical effects that:

the power mechanism transmits power to the first gear (driving gear) through the motor, and transmits motion to the coating mechanism through the second gear (driven gear), so that the rotary motion of a rotary worktable in the coating mechanism is realized; for the coating mechanism, a rotary worktable (a culture dish is placed on a flat plate) which rotates and a metal coating rod fixed on one side of the coating mechanism are utilized to uniformly coat the bacterial liquid on a culture medium; the modular flat plate coating device is characterized in that the power mechanism and the coating mechanism are designed into a modular form capable of being combined and spliced, and the modular flat plate coating device can be used for automatically coating, so that the coating operation is standardized, and the coating efficiency is improved. The coating device solves the problems of low efficiency and unstable coating effect of the existing manual coating operation, and the problems of high price, complex mechanism and uneven bacterial liquid coating in the coating process of the existing automatic coating equipment.

And in an alternative embodiment, the second module frame is further provided with a first assembling part which can be assembled with another coating mechanism module. By analogy, a plurality of coating mechanisms can be formed in a mode of combining a plurality of modules to complete coating operation at the same time, and the coating efficiency is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of a power mechanism of a modular flat plate coating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a coating mechanism of a modular flat coating apparatus provided in an embodiment of the present invention;

FIG. 3 is a top view of a modular flat bed coating apparatus provided in an embodiment of the present invention;

FIG. 4 is an assembly view of the power mechanism and the coating mechanism of the modular flat panel coating apparatus according to the embodiment of the present invention;

wherein, the corresponding relation between the reference numbers and the part names in the figure is as follows:

11 first gear, 12 motor, 13 first module frame, 14 first assembly part, 21 clamping device, 22 coating rod, 23 rotary table, 24 bearing, 25 second gear, 26 second module frame, 27 rotating shaft, 28 second assembly part.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the present invention, the use of directional terms such as "upper, lower, top, bottom" and "above" are generally used with respect to the orientation shown in the drawings or with respect to the positional relationship of the components with respect to each other in the vertical, vertical or gravitational direction, unless otherwise indicated.

The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. Please refer to fig. 1-4.

In a specific embodiment of the present invention, a modular flat panel coating apparatus is provided, comprising a power mechanism and a coating mechanism:

as shown in fig. 1, the power mechanism includes a first gear 11, a motor 12, and a first module frame 13, the first gear 11 is in transmission connection with the motor 12, specifically, connected through a motor shaft, the motor 12 is fixed on the first module frame 13, and the first module frame 13 has a first assembling portion 14;

as shown in fig. 2, the coating mechanism comprises a coating rod 22 arranged on a clamping device 21, a rotary table 23, a bearing 24, a second gear 25 and a second module frame 26, wherein the bearing 24 is fixed at the bottom of the second module frame 26 and connected with one end of a rotating shaft 27, the other end of the rotating shaft 27 passes through the upper part of the second module frame 26 and is fixedly connected with the rotary table 23, the clamping device 21 is fixed at one side of the rotary table 23 on the upper part of the second module frame 26, the second gear 25 is in transmission connection with the rotating shaft 27, and the second module frame 26 is provided with a second assembling part 28 for assembling and connecting with the first assembling part 14;

as shown in fig. 4, when the first fitting part 14 is fitted to the second fitting part 28, the first gear 11 is engaged with the second gear 25.

The power mechanism is used for providing power and comprises a first gear 11, a motor 12 and a first module frame 13. The first gear 11 is connected with the motor 12 through a transmission shaft, and rotates under the driving of the motor 12, the motor 12 is fixed on a first module frame 13 for providing stable support, can be fixed on the upper part of the first module frame 13, and can also be fixed on the bottom of the first module frame 13, no matter the motor 12 is fixed on the upper part or the bottom, the motor 12 is required to be stably fixed on the first module frame 13, so that the motor can provide stable driving force for the first gear 11, and the motor 12 can be fixed on the module frame 13 by adopting a threaded fastener; the first module frame 13 has a first fitting portion 14 thereon for coupling with a second fitting portion 28.

A60 KTVZ alternating current motor can be selected specifically, and the rotating speed is 30r/min, so that the stable operation of the machine is ensured.

The coating mechanism comprises a coating rod 22 arranged on a clamping device 21, a rotary table 23, a bearing 24, a second gear 25 and a second module frame 26. A bearing 24 (for example, a 6004 bearing) is fixed at the bottom of a second module frame 26 for providing stable support and is connected with one end of a rotating shaft 27, the rotating shaft 27 can rotate freely, the other end of the rotating shaft 27 passes through the upper part of the second module frame 26 and is fixedly connected with the rotary worktable 23, and the rotating shaft 27 rotates to drive the rotary worktable 23 to rotate; the clamping device 21 is fixed on one side of the rotary table 23 on the upper part of the second module frame 26, so that the coating rod 22 arranged on the clamping device 21 can be placed in a culture dish on the rotary table 23 for coating, and the clamping device 21 can be fixed on the module frame by adopting a threaded fastener; the second gear 25 is in transmission connection with the rotating shaft 27, and when the second gear 25 rotates, the rotating shaft 27 rotates along with the second gear; the second module frame 26 has a second fitting portion 28 for fitting connection with the first fitting portion 14.

When the device is used for coating, the first assembling part 14 is assembled and connected with the second assembling part 28, and the first gear 11 is meshed and connected with the second gear 25; placing the petri dish on a rotary table 23 and placing the coating rods 22 in the petri dish; starting the power mechanism, rotating a motor shaft to drive the first gear 11 to rotate, rotating a second gear 25 meshed with the first gear 11 along with the rotation, and driving the rotary worktable 23 on the rotating shaft 27 to rotate together by the second gear 25; at this time, the coating rod 22 is lightly pressed against the petri dish by its own weight, and the coating rod 22 slightly pushes the bacterial suspension with the rotation of the petri dish, thereby completing the coating of the bacterial suspension. Thus, the coating mechanism can realize automatic coating under the driving of the power mechanism.

That is, in the power mechanism, the power is transmitted to the first gear 11 (driving gear) by the motor 12, and the motion is transmitted to the coating mechanism by the second gear 25 (driven gear), so that the rotary motion of the rotary table 23 in the coating mechanism is realized; the coating means uniformly coats the culture medium with a bacterial suspension by using a rotating table 23 (on which a culture dish is placed) and a coating rod 22 fixed to one side of the coating means.

The rotary table 23 may be provided with an anti-slip member to prevent the culture dish from slipping and falling off. In operation, the culture medium is placed on the rotary table 23, and the culture dish and the table are rotated synchronously.

In the case of a single plate coater, the bacterial solution is uniformly coated on the culture medium by using a rotary table 23 and a fixed coating rod 22. The design solves the problems of low coating efficiency and uneven coating of the bacteria liquid on the agar existing in the prior device.

The modular flat plate coating device is characterized in that the power mechanism and the coating mechanism are designed into a modular form capable of being combined and spliced, and the modular flat plate coating device can be used for automatically coating, so that the coating operation is standardized, and the coating efficiency is improved.

In an alternative embodiment, as shown in fig. 2, the second module frame 26 further has a first mounting portion 14 thereon, which is mountable with another coating mechanism module. It can be understood that the first assembling portion 14 and the second assembling portion 28 on the second module frame 26 can be assembled and combined with other coating mechanisms respectively, and simultaneously perform the coating operation, and so on, and the coating operation can be simultaneously completed by forming a plurality of coating mechanisms in a plurality of module combinations, thereby further improving the coating efficiency.

In a preferred embodiment, as shown in fig. 3, the first gear 11 protrudes radially beyond the outer edge of the first module frame 13, and the second gear 25 protrudes radially beyond the outer edge of the second module frame 26. Therefore, the transmission gears on the power mechanism and the coating mechanism, namely the diameters of the first gear 11 and the second gear 25 are designed to be slightly larger than the shell of the module device, the two gears can be completely meshed, the condition that the meshing between the gears is poor and the transmission of the two gears is unstable is avoided, the mechanisms can transmit power through the meshing of the gears, the purpose that one power mechanism simultaneously drives a plurality of coating mechanisms to execute coating operation is achieved, and the problem that the previous device cannot simultaneously coat a plurality of culture dishes is solved.

Specifically, as shown in fig. 4, the first assembling portion 14 and the second assembling portion 28 are respectively a snap structure corresponding to a male snap and a female snap. A specific implementation manner is to use a buckle of a concave-convex mechanism, the first assembling portion 14 may be a groove, the second assembling portion 28 may be a protrusion, and of course, the second assembling portion 28 may also be designed as a groove, and the first assembling portion 14 is a protrusion, which is not limited in the present invention. The groove and the protrusion can be matched with the buckle in a mutually splicing manner. Another specific implementation manner is a locking structure, in which the first assembling portion 14 is a locking shaft, the second assembling portion 28 is a locking lock that is locked with the locking shaft, the locking lock rotates around a pin shaft, and can be locked when rotating to the locking shaft, and unlocked when rotating to disengage from the locking shaft. Or, the third specific implementation manner may be a manner of positioning and assembling comb teeth, the first assembling portion 14 and the second assembling portion 28 are staggered comb tooth structures, and the comb tooth head has a clamping portion, so as to perform positioning and limiting functions after the comb tooth structures are mutually spliced and clamped. The above is only a limited example of the snap structure, and other existing snap structures can be used as long as the purpose of connection and fixation can be achieved. In a similar way, no matter which implementation mode is adopted, the effect of assembling and positioning can be realized as long as the male and female buckle structures are met, and the male and female structures of the two module frames can be interchanged in design during design and processing, but the effect of assembling the male and female buckle structures between the module frames is not influenced.

In addition, the first and second module racks 13 and 26 have top and bottom plates, respectively, and the first and second fitting parts 14 and 28 are located on the corresponding top and bottom plates, respectively. For example, for a more stable assembly, the first module frame 13 and the second module frame 26 may be configured as a cubic frame, four brackets may fix the top plate and the bottom plate with screw fasteners, and the gear is disposed at an inner position of the frame body, and the cube has the top plate and the bottom plate. The rotating shaft 27 can pass through a rotating hole reserved on the top plate and is fixedly connected with the rotating workbench 23 upwards. In this design, the first assembling portion 14 may be disposed on the first top plate edge of the first module frame 13, and in the case of a concave-convex mechanism, as shown in fig. 1 to 4, a T-shaped concave structure may be disposed on the first top plate edge; a second fitting portion 28 having a T-shaped protrusion structure is provided at a fitting position corresponding to the second top plate edge of the second module frame 26, and similarly, the first bottom plate of the first module frame 13 and the second bottom plate of the second module frame 26 are also provided.

When the two module frames are assembled and combined, the upper and lower groups of T-shaped concave structures and the T-shaped convex structures can be spliced to firmly fix the positions of the two module frames, and at the moment, the first gear 11 and the second gear 25 are meshed and connected. The two groups of assembly parts of the top plate and the bottom plate are assembled, so that the connection between the modules is more stable. Of course, two sets of concave structures can be arranged on the top plate, and two sets of convex structures are correspondingly arranged on the bottom plate, so that the transverse and longitudinal fixing and positioning between the modules are firmer, and the modules are more stable during coating operation.

The special connecting structure design of the bottom plate and the top plate can enable the coating mechanism to be meshed with the coating mechanism or a gear of the power mechanism, and meanwhile, the relative positions of the mechanisms are kept fixed.

The holding device 21 is a hinge mechanism, and the coating rod 22 is provided on the rotary table 23 side by the hinge mechanism. During the use of the coating rod 22, the coating and sterilization operations can be completed by only rotating the coating rod 22 without removing the coating rod 22, thereby greatly reducing the working strength of the user.

The coating rod 22 is fixed on the side face of the coating mechanism through a hinge mechanism, rotates to the upper side of the culture medium in the using process, can rotate to the other side after being used, does not need to take down the coating rod 22, directly utilizes an alcohol lamp placed below to perform disinfection operation, and is simple and easy to operate.

In an alternative embodiment, as shown in fig. 1, the first module frame 13 further has a second fitting portion 28 thereon. In order to further expand the assembly scale of the module, a second assembly portion 28 may be provided on the other side of the first module frame 13 of the power mechanism. In this case, the power mechanism may be used by assembling the coating mechanism through the first assembling portion 14 of the first module frame 13, by assembling the coating mechanism through the second assembling portion 28 of the other side, or by assembling two coating mechanisms at the same time, and the first assembling portion 14 and the second assembling portion 28 provided on the first module frame 13 are provided on both sides of the module frame, so that they do not interfere with each other. That is, the power mechanism can be assembled and used with the second assembling portion 28 of one coating mechanism through the first assembling portion 14 of the power mechanism, and can also be assembled and connected with the first assembling portion 14 of another coating mechanism through the second assembling portion 28 of the other side, so that the infinite extension of the coating mechanisms is realized.

It will be understood by those skilled in the art that the first module frame 13 has a first fitting portion 14 on one side thereof, and another first fitting portion 14 may be further provided on the other side of the first module frame 13. Thus, the first assembling portions 14 on both sides can be assembled with two coating mechanisms having the second assembling portions 28 for the purpose of assembling, and are not particularly limited.

In an alternative embodiment, coating rod 22 is a metal coating rod. Because the coating rod 22 is made of stainless steel, certain pressure can act on the surface of the culture medium under the action of gravity, and the coating rod is fully contacted with the culture medium through self gravity; the pressure exerted by hands during artificial coating is simulated, but the instability of manual operation can be avoided, so that the coating is more uniform and the coating effect is better.

Preferably, the length of the coated end of the metal coating rod is less than the diameter of the culture dish. The length of the coating rod 22 is slightly smaller than the diameter of the culture dish and is fixed on the side surface of the module, so that the bacteria liquid can be uniformly coated on the whole agar culture medium only by the rotation of the culture dish, and the bacteria liquid is prevented from being excessively accumulated on the side wall of the culture dish. Furthermore, the length of the coating end of the metal coating rod is determined to be 85% of the diameter of the culture dish through tests, so that bacteria liquid can be prevented from being accumulated on the side wall of the culture dish while being uniformly coated.

Assembly and use of the modular flat coating device:

(1) assembling the device, splicing the convex parts of the top plate and the bottom plate of the power mechanism and the concave parts of the top plate and the bottom plate of the first coating mechanism respectively, splicing the convex parts of the top plate and the bottom plate of the first coating mechanism and the concave parts of the top plate and the bottom plate of the second coating mechanism respectively, and so on to complete the assembly of the mechanisms and accurately mesh the transmission gears of the mechanisms. Because the two sides of the power mechanism are respectively designed with the convex part and the concave part, the two sides of the power mechanism can be connected with the coating mechanism.

(2) An appropriate amount of diluted broth was titrated onto the medium in the petri dish.

(3) And starting a power device, rotationally placing the metal coating rod on the surface of the culture medium after the culture dish starts to rotate at a constant speed, and applying a certain pressure to the surface of the culture medium by the metal coating rod under the action of gravity to simulate the pressure applied by hands during artificial coating.

(4) After coating is finished, rotating the coating rod to the other side, disinfecting by using an alcohol lamp placed beside the coating mechanism, moving the alcohol lamp away after disinfection, standing for a period of time, and preparing for the next round of coating operation;

(5) the petri dish was removed and the next coating operation was performed.

The modular flat plate coating device is designed into a modular form, and can form a plurality of coating devices by combining a plurality of modules to simultaneously complete coating operation; for a single plate coater, the bacterial solution is uniformly coated on the culture medium by using a rotating plate and a fixed metal coating rod.

The design idea solves the problems of low coating efficiency and uneven coating of the bacteria liquid on the agar existing in the prior device.

The gear is slightly bigger than module device shell, can make each coating station pass through gear engagement transmission power, realizes that a power unit drives the coating mechanism of a plurality of modules simultaneously, has solved the problem that the device can not be simultaneously to a plurality of culture dishes coating in the past. The length of the metal coating rod is slightly shorter than the diameter of the culture dish, and the metal coating rod is fixed on the side face of the module, so that the problem of excessive accumulation of bacteria liquid on the side wall of the culture dish can be avoided.

The coating device is designed into a modular form, and the shape, size and function of each coating mechanism are completely the same. The power is transmitted in a gear engagement mode, and the simultaneous work of a plurality of modules, namely the simultaneous coating of a plurality of rotary working tables is completed. Compared with the original coating device, a single coating mechanism in the modularized coating device is small and exquisite, the volume of the coating device assembled by the coating mechanism and the power mechanism is variable, and the modules can be increased and decreased at will according to actual requirements, so that the modularized coating device is more suitable for user requirements.

Compared with the prior art, the invention has the following advantages:

(1) compared with manual coating and the existing automatic coating device, the modular coating device adopts a modular design, a plurality of coating mechanisms can be combined according to needs, the coating efficiency is higher, and the energy-saving and environment-friendly effects are achieved.

(2) The power mechanism, the coating mechanism and the coating mechanism transmit motion through the gear, accurate meshing of the gear is achieved through the concave-convex mechanism, the structure is simple, cost is low, and maintenance is easy.

(3) The coater adopts a metal coating rod, can uniformly coat the bacteria liquid on the surface of the agar culture medium by utilizing the self gravity, and has better coating effect.

(4) The length of the coating end of the metal coating rod is determined to be 85% of the diameter of the culture dish through tests, so that bacteria liquid can be uniformly coated, and the bacteria liquid can be prevented from being accumulated on the side wall of the culture dish.

(5) In the using process of the coating rod, the coating rod does not need to be taken down, the coating and disinfection operation can be completed only by rotating the coating rod, and the working strength of a user is greatly reduced.

A modular flat bed coater apparatus according to the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.