WO2023137746A1

WO2023137746A1 - Culture dish filling device

Info

Publication number: WO2023137746A1
Application number: PCT/CN2022/073435
Authority: WO
Inventors: 张智彧; 司同; 庞任维
Original assignee: 深圳先进技术研究院
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2023-07-27

Abstract

Disclosed is a culture dish filling device, comprising: a device frame (1); a filling mechanism (2), mounted on the device frame (1), the filling mechanism (2) being provided with a discharging pipe (203); a storage mechanism (4), mounted on the device frame (1), a plurality of culture dishes (5) to be filled being stored on the storage mechanism (4); and a moving mechanism (3), mounted on the device frame (1), wherein the moving mechanism (3) can transfer the plurality of culture dishes (5) one by one to the position below the discharging pipe (203), and the discharging pipe (203) can be moved to a plurality of hole positions (501) of the culture dish (5) for filling. According to the culture dish filling device in the present invention, the plurality of culture dishes (5) stored on the storage mechanism (4) are transferred to the position below the discharging pipe (203) of the filling mechanism (2) one by one by means of the moving mechanism (3), and then the movable discharging pipe (203) is provided, so that the discharging pipe (203) is moved to a plurality of hole positions (501) of a square culture dish, and then a liquid culture medium is filled to each hole position (501), thereby achieving automatic filling of the square culture dish.

Description

Petri dish filling equipment

technical field

The invention relates to the technical field of microbial experiment equipment, in particular, to a petri dish filling equipment.

Background technique

Culture medium refers to the nutrient matrix prepared by different combinations of nutrients for the growth and reproduction of microorganisms, plants or animals (or tissues). According to the physical state, it can be divided into solid medium, liquid medium, and semi-solid medium. It is usually subpackaged when used. The solidification point of the agar in the solid medium is about 40°C. Therefore, it is necessary to fill the sterilized solid medium into a petri dish at 50°C-55°C (before it solidifies). In the manual experiment operation, the experimental technicians need to measure a certain amount of medium, and complete the operations of opening, filling, covering and stacking the petri dish in sequence, which is time-consuming and laborious. The difference in the filling amount of personnel will also lead to inconsistent thickness of the flat petri dish. Since the filling needs to ensure a sterile environment, the experiment needs to be carried out in a narrow ultra-clean workbench, which also greatly reduces the preparation efficiency of the flat petri dish.

For fully automated biological experiments, standard parameters are required for experimental process operations such as plate streak culture and plate picking clones to ensure the accuracy of the experiment. Currently, the existing automatic filling equipment is applied to the filling of round petri dishes. Since the square culture dish has many types (such as single hole, 4 holes, 8 holes, 24 holes, etc.), existing equipment cannot fill the multiple hole positions of the square culture dish.

Contents of the invention

The purpose of the present invention is to provide a petri dish filling equipment to solve the technical problem that the current automatic filling equipment cannot automatically fill square petri dishes.

Above-mentioned purpose of the present invention can adopt following technical scheme to realize:

The invention provides a petri dish filling equipment, comprising: an equipment rack; a filling mechanism installed on the equipment rack, and the filling mechanism has a discharge pipe; a storage mechanism, installed on the equipment rack, on which a plurality of culture dishes to be filled are stored; a moving mechanism, installed on the equipment rack, can transfer a plurality of the culture dishes to the bottom of the discharge pipe one by one, and the discharge pipe can be moved to a plurality of holes of the culture dish for filling.

Features and advantages of the present invention are:

The culture dish filling equipment of the present invention transfers a plurality of culture dishes stored on the storage mechanism to the bottom of the discharge pipe of the filling mechanism one by one through the moving mechanism, and then by setting the movable discharge pipe, the discharge pipe is moved to a plurality of holes of the square culture dish, and then the liquid medium is filled to each hole, thereby realizing the automatic filling of the square culture dish.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of the culture dish filling equipment of the present invention.

Fig. 2 is a structural schematic diagram of the filling mechanism of the present invention.

Fig. 3 is a structural schematic diagram of the moving mechanism of the present invention.

Fig. 4 is a schematic structural diagram of the first turntable of the present invention.

Fig. 5 is a schematic structural view of the fixed mounting plate of the present invention.

Fig. 6 is a schematic structural view of the storage mechanism of the present invention.

Fig. 7 is a structural schematic diagram of the third clamping structure and the second pushing structure of the present invention.

Fig. 8 is a schematic structural diagram of the equipment rack of the present invention.

In the picture:

1. Equipment frame; 101. Cabinet; 102. Moving wheel; 2. Filling mechanism; 201. Lateral movement structure; 2011. Lateral movement motor; 2012. Lateral slide rail; 2013. Lateral sliding seat; 202. Longitudinal movement structure; Turntable; 302, culture dish placement groove; 303, second turntable; 304, culture dish through hole; 305, first clamping structure; 3051, splint; 3052, pressure block; 3053, pressure slope; 306, first push structure; Material lifting platform; 3082, feeding lifting motor; 309, returning material lifting structure; 3091, returning material lifting platform; 3092, returning material lifting motor; 310, first turntable drive motor; 311, turntable shaft; 312, supporting column; The third clamping structure; 4061, gripper motor; 4062, gripper; 4063, gripper gasket; 407, the second push structure; 4071, the second push motor; 4072, the second push rod;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of petri dish filling equipment, comprising: equipment rack 1; Filling mechanism 2 is installed on the equipment rack 1, and filling mechanism 2 has discharge pipe 203; Filling is performed at a plurality of hole positions 501 .

In the culture dish filling equipment of the present invention, the plurality of culture dishes 5 stored on the storage mechanism 4 are transferred to the bottom of the discharge pipe 203 of the filling mechanism 2 one by one through the moving mechanism 3, and then the discharge pipe 203 is moved to a plurality of hole positions 501 of the culture dish 5 by setting a movable discharge pipe 203, and then the liquid medium is filled to each hole position 501, thereby realizing automatic filling of the culture dish 5.

Specifically, the petri dish 5 can be different types of square petri dishes, such as single-hole type, 4-hole type, 8-hole type, 24-hole type, etc., all of which can be automatically filled by the petri dish filling equipment of the present invention. Optionally, the petri dish is a petri dish of other shapes such as a circle. The number of discharge pipes 203 of the filling mechanism 2 is one, and one discharge pipe 203 is sequentially moved to each hole 501 of the culture dish 5 for filling. Optionally, multiple discharge pipes can be set, and the multiple discharge pipes can be simultaneously moved to multiple holes of the culture dish for filling.

As shown in FIG. 2 and FIG. 4 , in the embodiment of the present invention, the discharge pipe 203 can be moved along the length direction L and the width direction W of the culture dish 5 . A plurality of holes 501 in the culture dish 5 are arranged at intervals along its length direction L and width direction W, therefore, by moving the discharge pipe 203 along the length direction L and width direction W of the culture dish 5, the discharge pipe 203 can be moved to a plurality of holes 501 of various types of culture dishes 5.

As shown in Figures 2 and 4, the filling mechanism 2 includes: a transverse movement structure 201 installed on the equipment rack 1; a longitudinal movement structure 202, which is slidably matched with the transverse movement structure 201 along the length direction L of the culture dish 5; The transverse movement structure 201 drives the longitudinal movement structure 202 to slide along the length direction L of the culture dish 5. Specifically, the transverse movement structure 201 includes a transverse movement motor 2011 and a transverse sliding seat 2013. The transverse movement motor 2011 is installed on the equipment rack 1. The transverse movement motor 2011 can drive the transverse movement seat 2013 to slide along the length direction L of the culture dish 5. The longitudinal movement structure 202 also includes a longitudinal movement motor 2021 and a longitudinal slide rail 2022, the longitudinal movement motor 2021 and the longitudinal slide rail 2022 are all installed on the transverse sliding seat 2013, and the longitudinal sliding seat 2023 is slidably matched with the longitudinal slide rail 2022 along the width direction W of the culture dish 5. Optionally, the longitudinal movement structure is installed on the equipment frame, and the transverse movement structure is slidingly matched with the longitudinal movement structure along the width direction of the culture dish.

As shown in Figures 2 and 4, the transverse movement structure 201 includes a transverse slide rail 2012, and the longitudinal movement structure 202 is slidably matched with the transverse slide rail 2012 along the length direction L of the culture dish 5. A waste trough 204 is provided on one side of the transverse slide rail 2012, and the longitudinal movement structure 202 can drive the discharge pipe 203 to move to the top of the waste trough 204. By setting the waste tank 204, the discharge pipe 203 can rinse the discharge pipe 203 and discharge the rinsed waste liquid into the waste tank 204 before filling the petri dish 5, and also discharge the remaining feed liquid in the discharge pipe 203 to the waste tank 204 after filling.

As shown in FIGS. 1 and 4 , in an embodiment of the present invention, the moving mechanism 3 includes a first turntable 301 on which at least one petri dish placement slot 302 is provided, and the first turntable 301 can drive at least one petri dish placement slot 302 to move to the bottom of the storage mechanism 4 . The petri dish 5 on the storage mechanism 4 is first transferred to the petri dish placement tank 302 , and then the petri dish 5 is driven by the first turntable 301 to be transferred to the bottom of the discharge pipe 203 so that the filling mechanism 2 can fill the petri dish 5 . Specifically, the petri dish placement groove 302 has the same shape as the petri dish 5 , and the size of the petri dish placement groove 302 is slightly larger than that of the petri dish 5 .

As shown in Fig. 1, Fig. 2 and Fig. 3, in the embodiment of the present invention, moving mechanism 3 comprises second turntable 303, and second turntable 303 is positioned at the top of first turntable 301, and second turntable 303 and first turntable 301 rotate synchronously and set, and second turntable 303 is provided with at least one petri dish through hole 304, and petri dish 5 is covered with petri dish lid 6, and petri dish 5 to be filled passes through petri dish through hole 304 and is placed in petri dish placement groove 302, and petri dish lid 6 Intercepted by the second turntable 303 and placed on the second turntable 303, the discharge pipe 203 extends from between the first turntable 301 and the second turntable 303 to the top of the culture dish 5 to be filled. By setting the second turntable 303 and setting the petri dish passing hole 304 on the second turntable 303, the petri dish 5 is covered with the petri dish cover 6 before filling, so as to avoid the petri dish 5 being polluted before filling, and the second turntable 303 can transfer the petri dish cover 6 and the petri dish 5 on the first turntable 301 to the side of the filling mechanism 2 synchronously, so that when the petri dish 5 is filled between the first turntable 301 and the second turntable 303, the discharge pipe 203 will The top of 5 is covered with a petri dish cover 6, which still has a certain protective effect on the petri dish 5 during the filling process. In addition, after the filling is completed, by passing the petri dish 5 upward through the petri dish through the hole 304, the filled petri dish 5 and the petri dish cover 6 can be re-covered, thereby preventing the petri dish 5 from being polluted after canning.

As shown in Figures 3 and 4, specifically, the petri dishes 5 stored on the storage mechanism 4 are all petri dishes 5 with a petri dish cover 6, that is, petri dishes with lids, so as to ensure that the petri dishes 5 will not be polluted during storage. The peripheral dimension of the petri dish cover 6 is greater than the peripheral dimension of the petri dish 5, and the size of the petri dish through hole 304 is greater than the peripheral dimension of the petri dish 5 but less than the peripheral dimension of the petri dish cap 6, so that the petri dish cap 6 cannot pass through the petri dish through the hole 304 and is intercepted by the second turntable 303, thereby being placed on the second turntable 303, while the petri dish 5 can pass through the petri dish through the hole 304 and fall into the petri dish placement groove 302 of the first turntable 301 below. The second turntable 303 and the first turntable 301 are disc structures with the same radial dimension. The second turntable 303 is mounted on the first turntable 301 through a plurality of support columns 312 arranged at intervals along its circumference.

As shown in Figure 3, in the embodiment of the present invention, the second turntable 303 is provided with at least one first clamping structure 305, and the first clamping structure 305 can clamp the culture dish cover 6 under the state that the culture dish 5 is separated from the culture dish cover 6 and loosen the culture dish cover 6 under the state that the culture dish 5 and the culture dish cover 6 are covered again. In order to prevent the petri dish cover 6 from tilting and falling from the petri dish through the hole 304 , the petri dish cover 6 is clamped by setting a first clamping structure 305 on the second turntable 303 .

As shown in Figure 3, the first clamping structure 305 includes two clamping plates 3051, and the two clamping plates 3051 are located on both sides of the culture dish passing hole 304. The two clamping plates 3051 can move toward each other to clamp the culture dish cover 6. The equipment rack 1 is provided with a first pushing structure 306, and the first pushing structure 306 can push the two clamping plates 3051 to move away from each other to release the culture dish cover 6. Before the petri dish with cover on the storage mechanism 4 is transferred downward to the moving mechanism 3, the first pushing structure 306 pushes the two clamping plates 3051 to move away from each other, so that the two clamping plates 3051 move away from the top of the petri dish passing hole 304, and then when the petri dish with a cover moves down, the petri dish cover 6 is intercepted by the second turntable 303, and the petri dish 5 then passes through the petri dish passing hole 304 and falls into the petri dish placement groove 302, and then the first pushing structure 306 is lifted from the two splints 30 51, so that the two splints 3051 clamp the petri dish cover 6. After filling, when the petri dish 5 moves upwards to the petri dish through the hole 304 and re-closes with the petri dish cover 6, the first push structure 306 pushes the two splints 3051 away again, so that the petri dish cover 6 can be moved upwards synchronously with the filled petri dish 5.

As shown in FIG. 3 , specifically, the two splints 3051 are installed on the second turntable 303 through the elastic reset member, and the distance between the two splints 3051 in the free state is smaller than the width of the culture dish cover 6 , therefore, when not being pushed by the first push structure 306, the two splints 3051 can move toward each other under the action of the elastic reset member to clamp the culture dish cover 6 . The first push structure 306 includes a first push motor 3061 and a first push rod 3062 , the first push motor 3061 is installed on the equipment rack 1 , and the first push motor 3061 can drive the first push rod 3062 to move along the radial direction of the second turntable 303 . The two splints 3051 are provided with a pressure block 3052, and the pressure block 3052 has a pressure slope 3053. The pressure slope 3053 is gradually inclined toward the two sides of the culture dish through the hole 304 along the radially outward direction of the second turntable 303. The first push rod 3062 has two pushing ends arranged at intervals. When the first push rod 3062 moves inward along the radial direction of the second turntable 303 and abuts against the two pressure-receiving blocks 3052, the two pressure-receiving blocks 3052 drive the two splints 3051 to move away from each other under the extrusion of the two pushing inclined surfaces 3063; Optionally, the first clamping structure may also adopt other clamping structures such as a clamping cylinder.

As shown in FIG. 4 , in an embodiment of the present invention, at least three petri dish placement slots 302 are provided on the first turntable 301 , and at least three petri dish placement slots 302 are arranged at intervals along the circumference of the first turntable 301 . By arranging at least three petri dish placement grooves 302 on the first turntable 301, the feeding operation, filling operation and material return operation of different petri dish 5 can be performed at the same time, that is, at least one petri dish placement groove 302 moves to the below of the storage mechanism 4, so that a petri dish 5 falls into the petri dish placement groove 302, thereby completing the feeding operation of a petri dish 5; Loading operation: at least one petri dish placement slot 302 moves the filled petri dish 5 to the side of the discharge pipe 203, so that the petri dish 5 and the petri dish cover 6 are re-closed and then left from the moving mechanism 3, thereby completing the material return operation of another petri dish 5, the continuity of the entire equipment is good, and the filling efficiency is higher.

Specifically, as shown in FIG. 1 , FIG. 3 and FIG. 4 , the first turntable 301 is provided with three petri dish placement slots 302 , and the second turntable 303 is provided with corresponding three petri dish passage holes 304 . The three first clamping structures 305 are arranged at intervals along the circumference of the second turntable 303 , and the second turntable 303 drives the three first clamping structures 305 to move to the positions of feeding operation, filling operation and unloading operation respectively. The two first pushing structures 306 are installed on the equipment rack 1 and correspond to the positions of the feeding operation and the discharging operation respectively. One of the first pushing structures 306 is used to push the first clamping structure 305 at the position of the feeding operation to be released, so that the petri dish with a cover is separated during feeding; the other first pushing structure 306 is used to promote the first clamping structure 305 at the position of the unloading operation to be released, so that the re-covered petri dish 5 and the petri dish cover 6 can be withdrawn synchronously; The petri dish cover 6 is clamped all the time in the process of moving to the position of the material return operation.

As shown in Fig. 4 and Fig. 5, the moving mechanism 3 is installed on the equipment frame 1 through a fixed mounting plate 307. The fixed mounting plate 307 is provided with at least one feed lifting structure 308. The first turntable 301 is installed on the fixed mounting plate 307. The first turntable 301 can drive at least one petri dish placing groove 302 to move to the top of at least one feeding lifting structure 308. The feeding lifting structure 308 can drive the petri dish 5 to be filled on the storage mechanism 4 to drop into the petri dish placing groove 302.

As shown in Figure 3, Figure 4 and Figure 5, specifically, the feeding lifting structure 308 includes a feeding lifting motor 3082 and a feeding lifting platform 3081. The feeding lifting motor 3082 is installed on the fixed mounting plate 307, and the feeding lifting motor 3082 drives the feeding lifting platform 3081 to rise or fall. The bottom surface of the lift culture dish placement tank 302 is provided with a lift pass hole, and the size of the lift pass hole is greater than the size of the feeding lifting platform 3081 and smaller than the size of the culture dish 5 . When feeding, the feeding lifting platform 3081 passes through the lifting passage hole and the petri dish passing hole 304 to rise to the bottom of the storage mechanism 4. The petri dish with a cover on the storage mechanism 4 falls on the feeding lifting platform 3081, and then the petri dish with a cover is driven down by the feeding lifting platform 3081, so that the petri dish cover 6 is intercepted on the second turntable 303, and the petri dish 5 falls into the petri dish placement groove 302, thereby completing the feeding and uncapping operations of the petri dish with a cover. The fixed mounting plate 307 is provided with a first turntable drive motor 310, and the first turntable 301 is connected with the first turntable drive motor 310 by a turntable shaft 311.

The fixed mounting plate 307 is provided with at least one lifting structure 309 for returning materials, and at least one lifting structure 308 for feeding and at least one lifting structure 309 for returning materials are located on both sides of the filling mechanism 2 . Specifically, the lifting structure 309 includes a lifting motor 3092 and a lifting platform 3091. The lifting motor 3092 is installed on the fixed mounting plate 307, and the lifting motor 3092 drives the lifting platform 3091 to rise or fall. When returning the material, the material return lifting platform 3091 first passes through the lifting passage hole to lift the petri dish 5 in the petri dish placement groove 302, and then drives the petri dish 5 to move upwards to the petri dish passing hole 304 and re-covers the petri dish cover 6, and then lifts the petri dish with a cover into the storage mechanism 4, thereby completing the closing and material removal operations of the petri dish with a lid.

As shown in Figures 1 and 8, the equipment rack 1 includes a cabinet 101 and four moving wheels 102. The four moving wheels 102 are installed on the bottom of the cabinet 101. The moving wheels 102 are Foma wheels, adjustable in height, and convenient to operate the entire equipment to move. The filling mechanism 2, the storage mechanism 4 and the fixed mounting plate 307 are all installed on the top of the cabinet 101. The first turntable drive motor 310, the feeding lifting motor 3082 and the feeding lifting motor 3092 are all located in the cabinet 101. The cabinet 101 is provided with a support rod 313 for supporting the fixed mounting plate 307.

As shown in Figures 1 and 6, in the embodiment of the present invention, the storage mechanism 4 includes a storage carousel 401, on which at least one feeding storage rack 403 is arranged, and a plurality of petri dishes 5 to be filled are stacked on the feeding storage rack 403 along its height direction, and the storage carousel 401 can drive at least one feeding storage rack 403 to rotate to the top of the feeding lifting structure 308. Specifically, the storage carousel 401 is installed on the equipment rack 1 through the second carousel drive motor 410 , and the storage carousel 401 is partly erected above the second carousel 303 .

As shown in Fig. 1, Fig. 5 and Fig. 6, the storage carousel 401 is provided with at least one feeding through hole, and the feeding through hole is positioned at the bottom of the feeding storage rack 403. The bottom of the feeding storage rack 403 is provided with a second clamping structure. Clamp down the petri dish 5 next to the bottom. When feeding is not needed, the bottom petri dish 5 in the feed storage rack 403 is clamped by the second clamping structure, so that all petri dishes 5 in the feed storage rack 403 cannot fall;

Specifically, the size of the feeding passage hole is larger than the radial size of the petri dish with a cover but smaller than the radial size of the feeding storage shelf 403 . As shown in FIGS. 6 and 7 , the equipment rack 1 is provided with a second push structure 407 , the second push structure 407 includes a second push motor 4071 and a second push rod 4072 , and the second push motor 4071 can drive the second push rod 4072 to move radially along the storage carousel 401 . The specific structure and working principle of the second clamping structure are similar to those of the above-mentioned first clamping structure 305, and the working principle of the second pushing structure 407 pushing the second clamping structure to release is similar to the working principle of the above-mentioned first pushing structure 306 pushing the first clamping structure 305 to loosen, and will not be repeated here. The third clamping structure 406 is mounted on the second push rod 4072 . The second push motor 4071 drives the second push rod 4072 to push the second clamping structure inwardly along the radial direction of the storage carousel 401, so that the second clamping structure loosens the bottommost petri dish 5, while the third clamping structure 406 clamps the bottommost petri dish 5. The third clamping structure 406 includes a gripper motor 4061 and two grippers 4062 , and gripper gaskets 4063 are laid on opposite inner surfaces of the two grippers 4062 to prevent the grippers 4062 from damaging the culture dish 5 .

As shown in Figures 1, 5 and 6, in an embodiment of the present invention, the storage carousel 401 is also provided with at least one return storage rack 404, and the storage turntable 401 can drive at least one return storage rack 404 to rotate to the top of the return lifting structure 309, and the return lifting structure 309 can raise the filled culture dish 5 and place it on the return storage rack 404.

As shown in Figure 1, Figure 5 and Figure 6, specifically, a plurality of storage racks 402 are arranged at intervals along its circumference on the storage carousel 401, and the plurality of storage racks 402 are detachably connected to the storage carousel 401, and the top of the storage rack 402 is provided with a handle 405 for easy operation. One of the storage racks 402 is located directly above the lifting structure 309, and no culture dish 5 to be filled is placed, thereby forming a material return storage rack 404, while the other storage racks 402 are stacked with a plurality of culture dishes 5 to be filled, forming a plurality of feeding storage racks 403, and the storage turntable 401 drives the plurality of feeding storage racks 403 to rotate one by one to the top of the feeding lifting structure 308 for feeding operation. When the petri dishes 5 on the feed storage rack 403 have all completed the feed operation, the return storage rack 404 is also filled with filled petri dishes 5, and the empty feed storage rack 403 is driven by the storage turntable 401 to rotate to the top of the return lifting structure 309, and then it is transformed into a new return storage rack 404. By removing the full return storage rack 404 from the storage carousel 401 and replacing it with a new feed storage rack 403, continuous feeding of the culture dishes 5 to be filled and continuous return of the filled culture dishes 5 are realized.

It can be seen from this that the material feeding storage rack 403 and the returning material storage rack 404 mentioned in the present invention do not specifically refer to a storage rack 402, but refer to storage racks 402 in two usage states. In this embodiment, the storage carousel 401 is arranged with six storage racks 402 along its circumference, among which five storage racks 402 are stacked with a plurality of petri dishes 5 to be filled, which is the feeding storage rack 403, and the remaining storage rack 402 is not placed with the petri dishes 5 to be filled, which is the return storage rack 404. The storage turntable 401 drives a plurality of storage racks 402 to move, so that the return storage rack 404 is located above the return lifting structure 309 and adjacent to it. A feed storage rack 403 is located above the feed lifting structure 308. When all the petri dishes 5 on the feed storage rack 403 have been fed, the storage turntable 401 drives another feed storage rack 403 adjacent to it to rotate to the top of the feed lift structure 308, and the feed storage rack 403, the petri dish passing hole 304, the petri dish placement groove 302 and the feed lifting structure 308 are located on the same axis. Rotate to the top of the material lifting structure 309 to become a new material storage rack 404.

As shown in Fig. 1, Fig. 5 and Fig. 6, in the embodiment of the present invention, the storage carousel 401 is provided with at least one return material passing hole, and the return material passing hole is located below the return material storage rack 404, and the bottom of the return material storage rack 404 is provided with a fourth clamping structure, and the fourth clamping structure can clamp the bottom culture dish 5 in the return material storage rack 404. Specifically, the structure of the feeding passage hole is the same as that of the feeding passage hole, and the structure of the fourth clamping structure is the same as that of the second clamping structure, which will not be repeated here. A third pushing structure 409 is provided on the equipment rack 1 , and the specific structure of the third pushing structure 409 is the same as that of the second pushing structure 407 , which will not be repeated here. The fourth clamping structure is pushed by the third pushing structure 409 to loosen the culture dish 5 at the bottom.

As shown in Figures 5 and 6, the storage carousel 401 is provided with at least one return buffer rack 408, the return buffer rack 408 is located below the return storage rack 404, and the bottom of the return buffer rack 408 is provided with a one-way stopper 4081, and the one-way stopper 4081 can only be opened when the return lifting structure 309 drives the filled culture dish 5 to rise to allow the filled culture dish 5 to enter the return buffer rack 408.

Specifically, the return buffer rack 408 is erected below the storage turntable 401, and is located directly below the return passage hole, that is, the return buffer rack 408 is fixedly arranged relative to the storage turntable 401, and when the storage turntable 401 drives the empty storage rack 402 to rotate to the top of the return buffer rack 408, the storage rack 402 forms a return storage rack 404. Since the return buffer rack 408 is provided, and the one-way stopper 4081 is set at the bottom of the return buffer rack 408, the one-way stopper 4081 is similar to the structure and working principle of the existing one-way door, that is, the one-way stopper 4081 can only be flipped up and opened when the return lifting structure 309 drives the filled culture dish 5 to lift upward. After the return lift structure 309 descends, the one-way stopper 4081 acts as an elastic return Flip down to a horizontal state and block the bottom of the return buffer rack 408, thereby supporting the filled culture dish 5 in the return buffer rack 408 and the return storage rack 404 when there is no need to return the material. Therefore, the third push structure 409 does not need to be provided with a clamping structure to clamp the lowermost petri dish 5 in the return storage rack 404 when returning the material. The fourth clamping structure only needs to fill the return storage rack 404 completely. Clamping without clamping the lowermost culture dish 5 in the material storage rack 404 after each completed returning of a filled culture dish 5 . When the material return storage rack 404 rotates to the right above the material return buffer rack 408, the third push structure 409 is used to promote the fourth clamping structure to be in a loose state, so that the material return lifting structure 309 can continuously push the filled culture dish 5 upwards into the material return storage rack 404 until the material return storage rack 404 is full.

The above are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

A petri dish filling equipment, including:

equipment rack;

The filling mechanism is installed on the equipment frame, and the filling mechanism has a discharge pipe;

The storage mechanism is installed on the equipment rack, and a plurality of culture dishes to be filled are stored on the storage mechanism;

The moving mechanism is installed on the equipment frame, and the moving mechanism can transfer a plurality of the culture dishes to the bottom of the discharge pipe one by one, and the discharge pipe can be moved to a plurality of holes of the culture dishes for filling.
Petri dish filling equipment according to claim 1, wherein,

The discharge pipe can be moved along the length direction and the width direction of the culture dish.
The culture dish filling device according to claim 2, wherein the filling mechanism comprises:

a lateral movement structure installed on the equipment frame;

The longitudinal movement structure is slidingly matched with the transverse movement structure along the length direction of the culture dish, the longitudinal movement structure has a longitudinal sliding seat, the longitudinal sliding seat is slidably arranged along the width direction of the culture dish, and the discharge pipe is installed on the longitudinal sliding seat.
Petri dish filling equipment according to claim 3, wherein,

The transverse movement structure includes a transverse slide rail, and the longitudinal movement structure is slidably matched with the transverse slide rail along the length direction of the culture dish. One side of the transverse slide rail is provided with a waste trough, and the longitudinal movement structure can drive the discharge pipe to move above the waste trough.
Petri dish filling equipment according to claim 1, wherein,

The moving mechanism includes a first turntable, on which at least one culture dish placement slot is provided, and the first turntable can drive at least one culture dish placement slot to move to the bottom of the storage mechanism.
Petri dish filling equipment according to claim 5, wherein,

The moving mechanism includes a second turntable, the second turntable is located above the first turntable, and the second turntable is rotated synchronously with the first turntable, the second turntable is provided with at least one petri dish through hole, the petri dish is covered with a petri dish cover, the petri dish to be filled passes through the petri dish through hole and placed in the petri dish placement groove, the petri dish cover is intercepted by the second turntable and placed on the second turntable, and the discharge pipe extends from between the first turntable and the second turntable to the culture dish to be filled the top of the dish.
The petri dish filling device according to claim 6, wherein,

The second turntable is provided with at least one first clamping structure, and the first clamping structure can clamp the petri dish cover when the petri dish is separated from the petri dish cap and loosen the petri dish cap when the petri dish and the petri dish cap are re-closed.
Petri dish filling equipment according to claim 7, wherein,

The first clamping structure includes two splints, and the two splints are located on both sides of the passage hole of the culture dish. The two splints can move toward each other to clamp the lid of the petri dish. The equipment frame is provided with a pushing structure, and the pushing structure can push the two splints to move away from each other to loosen the lid of the petri dish.
Petri dish filling equipment according to claim 5, wherein,

The first turntable is provided with at least three petri dish placement slots, and at least three petri dish placement slots are arranged at intervals along the circumference of the first turntable.
Petri dish filling equipment according to claim 9, wherein,

The moving mechanism is installed on the equipment frame through a fixed mounting plate, the fixed mounting plate is provided with at least one feeding lifting structure, the first turntable is installed on the fixed mounting plate, the first rotating disk can drive at least one of the culture dish placement grooves to move above the at least one feeding lifting structure, and the feeding lifting structure can drive the culture dishes to be filled on the storage mechanism to drop into the culture dish placement grooves.
The Petri dish filling device according to claim 10, wherein,

The fixed mounting plate is provided with at least one material return lifting structure, and at least one feeding lifting structure and at least one material returning lifting structure are located on both sides of the filling mechanism, the first turntable can drive at least one culture dish placement tank to move to the top of at least one material return lifting structure, and at least one material return lifting structure can drive the culture dish filled in the culture dish placement tank to rise to the storage mechanism.
The petri dish filling device according to claim 11, wherein,

The storage mechanism includes a storage turntable, on which at least one feeding storage rack is arranged, and a plurality of culture dishes to be filled are stacked on the feeding storage rack along its height direction, and the storage turntable can drive at least one feeding storage rack to rotate above the feeding lifting structure.
The petri dish filling device according to claim 12, wherein,

The storage carousel is provided with at least one feeding through hole, and the feeding through hole is located below the feeding storage rack. The bottom of the feeding storage rack is provided with a second clamping structure, and the second clamping structure can clamp the culture dish at the bottom in the feeding storage rack without feeding and release the culture dish in the feeding state.
The petri dish filling device according to claim 12, wherein,

The storage carousel is also provided with at least one material return storage rack, and the storage turntable can drive at least one material return storage rack to rotate above the material return lifting structure, and the material return lifting structure can lift the filled culture dish and place it on the material return storage rack.
The petri dish filling device according to claim 14, wherein,

The storage carousel is provided with at least one material return passage hole, the material return passage hole is located below the material return storage rack, the bottom of the material return storage rack is provided with a fourth clamping structure, and the fourth clamping structure can clamp the petri dish at the bottom of the material return storage rack.
The petri dish filling device according to claim 15, wherein,

The storage carousel is provided with at least one material return buffer rack, the material return buffer rack is located below the material return storage rack, and the bottom of the material return buffer rack is provided with a one-way stopper, and the one-way stopper can only be opened when the material return lifting structure drives the filled culture dish to rise, so that the filled culture dish enters the material return buffer rack.