Sample culture device

Abstract

The utility model relates to a sample culture device which comprises a base, a placing plate, a liquid separation part and a connecting part, wherein the placing plate is arranged on the base and is used for placing a culture dish; the liquid separation part is arranged above the placing plate; the connecting part is used for fixedly connecting the base with the liquid separation part; the liquid separation part comprises a plate body, a plurality of taper holes, a plurality of rubber plugs, a plurality of push rods and a pressing part; the taper holes are formed in the plate body and penetrate through the plate body; the rubber plugs are arranged in the taper holes in a one-to-one correspondence manner; the push rods are arranged on the lower sides of the rubber plugs in a one-to-one correspondence manner; the liquid separation cylinders are formed by protruding upwards from the upper side face of the plate body and annularly arranged around the taper holes in a one-to-one correspondence mode, and the liquid blocking frame is formed by protruding upwards from the upper side face of the plate body. The large end of the taper hole faces upwards, and each liquid separation cylinder is located in the liquid blocking frame. Due to the adoption of the technical scheme, time and labor are saved during use, and the workload of operators can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical testing equipment technology, specifically to a sample culture device. Background Technology

[0002] Medical testing is a science that examines materials taken from the human body using microbiology, immunology, biochemistry, genetics, hematology, biophysics, cytology, and other methods to provide information for the prevention, diagnosis, and treatment of human diseases and the assessment of human health. Some samples are cultured before being tested in a medical setting.

[0003] When culturing samples, culture medium needs to be added to the petri dishes. Currently, the common method for adding culture medium is to use a pipette in conjunction with a conical flask to transfer the medium from the flask to multiple petri dishes. However, when transferring the medium to each petri dish, the pipette needs to be inserted into the conical flask, and then the medium needs to be drawn into the pipette using the pipette. It is necessary to constantly observe the graduations on the pipette to control the amount of medium drawn. Once the required amount of medium is reached in the pipette, it is transferred to the petri dish position, and the medium is expelled from the pipette into the petri dish using the pipette. When culturing large numbers of samples, this method of transferring culture medium using a pipette in conjunction with a pipette is time-consuming and labor-intensive, significantly increasing the workload for operators. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a sample culture device to solve the technical problem in the prior art that when a large number of samples need to be cultured, the method of transferring culture medium into the culture dish using a pipette and a pipette is time-consuming, labor-intensive, and results in a large workload for the operator.

[0005] This utility model is achieved through the following technical solution:

[0006] A sample culture device includes a base, a placement plate disposed on the base for placing culture dishes, a dispensing section disposed above the placement plate, and a connecting section for fixing the base and the dispensing section. The dispensing section includes a plate body, a plurality of conical holes formed on the plate body and penetrating the plate body, a plurality of rubber stoppers respectively disposed in the plurality of conical holes, a plurality of push rods respectively disposed on the lower side of the plurality of rubber stoppers, a holding section for pressing down the plurality of rubber stoppers, a plurality of dispensing cylinders protruding upward from the upper side of the plate body and respectively disposed around the plurality of conical holes, and a liquid-blocking frame protruding upward from the upper side of the plate body. The large end of the conical hole faces upward, and each dispensing cylinder is located within the liquid-blocking frame.

[0007] Furthermore, the liquid distribution section also includes a drain pipe disposed on the plate body. The upper end of the drain pipe is connected to the upper side surface of the plate body, and the lower end is located below the plate body. The upper end of the drain pipe is located outside the liquid distribution cylinder and inside the liquid baffle frame.

[0008] Furthermore, the connecting portion includes a support portion disposed on the base for horizontally supporting the plate and a pressing portion disposed on the base for pressing the plate downward onto the support portion.

[0009] Furthermore, the support portion includes three support members arranged in an equilateral triangle on the base. Each support member includes a screw fixed to the base, a threaded sleeve screwed onto the screw, and an abutment head fixed to the upper end of the threaded sleeve. The top surface of the abutment head is spherical.

[0010] Furthermore, a circular horizontal bubble meter is provided on the plate.

[0011] Furthermore, the pressing part includes two pressing members fixed on the base, the two pressing members being located on two opposite sides of the plate; the pressing member includes a vertical plate fixed on the base, a horizontal plate fixed at the upper end of the vertical plate and one end protruding from the side of the vertical plate facing the plate, a through hole perpendicularly penetrating the upper and lower sides of the horizontal plate, a pressing rod slidably fitted in the through hole, a first screw hole provided on the horizontal plate with one end connected to the through hole and the other end connected to the outer surface of the horizontal plate, and a first bolt screwed into the first screw hole; the first screw hole is perpendicular to the through hole, and the screw-in end of the first bolt is used to abut against the pressing rod.

[0012] Furthermore, the base includes a first plate, a second plate disposed below the first plate and parallel to the first plate, a connecting plate connecting the first plate and the second plate, at least one second screw hole formed on the second plate, and at least one second bolt respectively screwed into each of the second screw holes.

[0013] Furthermore, the upper side of the placement plate is recessed downwards at the position of each of the dispensing cylinders to form a placement groove for placing the culture dish.

[0014] Furthermore, the placement plate has at least two guide holes that penetrate vertically through it; it also includes at least two guide rods that are respectively disposed in each of the guide holes, the guide rods being adapted to the guide holes, the guide rods being arranged vertically, and the lower end of the guide rods being fixedly connected to the base.

[0015] Furthermore, the pressing part includes a pressure plate, multiple vertical rods fixed to the lower side of the pressure plate, and a handle fixed to the middle of the upper side of the pressure plate, with each of the multiple vertical rods corresponding to a multiple of the rubber plugs.

[0016] The beneficial effects of this utility model are as follows:

[0017] The sample culture device described in this invention can quickly add culture medium to a large number of culture dishes, saving time and effort and reducing the workload of operators. When pouring culture medium into each of the dispensing cylinders, if the culture medium overflows or is accidentally poured outside the dispensing cylinder, the baffle frame can block the culture medium on the plate, preventing it from flowing out from the edge of the plate and contaminating the workbench or floor. The size of the dispensing cylinder can be customized during production, and when filled with culture medium, the amount of culture medium in the dispensing cylinder is close to the amount required in one culture dish. When pouring culture medium into the dispensing cylinder, there is no need to check the scale; simply fill the dispensing cylinder completely. When the push rod is not pushed upwards, the rubber stopper can effectively seal the corresponding conical hole, making leakage unlikely.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the sample culture device of this utility model;

[0020] Figure 2 This is a top view of the sample culture device of this utility model;

[0021] Figure 3 for Figure 2 AA section view;

[0022] Figure 4 for Figure 2 BB cross-sectional view.

[0023] The meanings of the numbers in the attached diagram are as follows:

[0024] Placement plate-1; Plate body-2; Conical hole-3; Rubber stopper-4; Push rod-5; Dispensing cylinder-6; Liquid baffle frame-7; Drain pipe-8; Screw-9; Threaded sleeve-10; Contact head-11; Circular horizontal bubble meter-12; Vertical plate-13; Horizontal plate-14; Holding rod-15; First bolt-16; First plate-17; Second plate-18; Connecting plate-19; Second bolt-20; Placement slot-21; Guide rod-22; Pressure plate-23; Vertical rod-24; Handle-25. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0030] Please see Figure 1-4This utility model provides a technical solution: a sample culture device, including a base, a placement plate 1, a dispensing section, and a connecting section. The placement plate 1 is disposed on the base and is used to place culture dishes. The dispensing section is disposed above the placement plate 1. The connecting section is used to fix and connect the base and the dispensing section. The dispensing section includes a plate body 2, a conical hole 3, a rubber stopper 4, a push rod 5, a holding part, a dispensing cylinder 6, and a liquid-blocking frame 7. There are multiple conical holes 3, rubber stoppers 4, push rods 5, and dispensing cylinders 6. Multiple conical holes 3 are formed on the plate body 2 and penetrate through the plate body 2. A plurality of rubber plugs 4 are respectively disposed in a plurality of conical holes 3 through the plate body 2. A plurality of push rods 5 are respectively disposed on the lower side of the plurality of rubber plugs 4. The pressing part is used to press down the plurality of rubber plugs 4. A plurality of liquid dispensing cylinders 6 are formed by protruding upward from the upper side of the plate body 2. A plurality of liquid dispensing cylinders 6 are respectively disposed around the plurality of conical holes 3. A liquid-blocking frame 7 is formed by protruding upward from the upper side of the plate body 2. The large end of the conical hole 3 faces upward. The rubber plug 4 is adapted to the corresponding conical hole 3. Each liquid dispensing cylinder 6 is located in the liquid-blocking frame 7. The rubber plug 4 cooperates with the conical hole 3. The push rod 5 is fixed to the lower end face of the corresponding rubber plug 4.

[0031] When transferring culture medium into multiple culture dishes using the sample culture device described in this utility model, multiple culture dishes are placed on the placement plate 1, so that each dispensing cylinder 6 has a culture dish directly below it. Then, culture medium is poured into each dispensing cylinder 6 through a conical flask containing culture medium, so that each dispensing cylinder 6 is filled with culture medium. Keeping the base stationary, the placement plate 1 is moved upwards, carrying multiple culture dishes upwards. After the bottom wall of each culture dish abuts against the corresponding push rod 5 and pushes the push rod 5 upwards a certain distance, a gap appears between the surface of the rubber stopper 4 and the wall of the corresponding conical hole 3. The culture medium in each dispensing cylinder 6 can flow downwards into the corresponding culture dish through the gap between the surface of the corresponding rubber stopper 4 and the wall of the corresponding conical hole 3. After all the culture medium in the dispensing cylinder 6 has flowed into the corresponding culture dish, the placement plate 1 is moved downwards, allowing it to be supported back on the base. Then, subsequent sample culture operations can be performed in each culture dish. The sample culture refers to cell culture. The subsequent cell culture operations are mature existing technologies. These operations include placing the culture dish lid on the culture dish and sealing the culture dish with sealing tape to prevent contamination of the culture medium. These subsequent operations are unrelated to the technical problem to be solved in this application, and therefore will not be described in detail here.

[0032] To maintain sterility during sample culture, the sample culture process and the operation steps of transferring culture medium into multiple culture dishes using the sample culture device described in this utility model are all carried out in a sterile room. Before transferring culture medium into multiple culture dishes using the sample culture device described in this utility model, the sample culture device described in this utility model and other instruments to be used are strictly disinfected. The specific disinfection method can be alcohol disinfection or ultraviolet disinfection.

[0033] The sample culture device described in this invention can quickly add culture medium to a large number of culture dishes, saving time and effort and reducing the workload of operators.

[0034] When the culture medium is poured into each of the dispensing cylinders 6, if the culture medium overflows from the dispensing cylinder 6 or is accidentally poured outside the dispensing cylinder 6, the liquid-blocking frame 7 can block the culture medium on the plate 2 to prevent the culture medium from flowing out from the edge of the plate 2 and contaminating the workbench or the ground.

[0035] The size of the dispensing cylinder 6 can be customized during production. The size of the dispensing cylinder 6 can be made according to the needs. When the dispensing cylinder 6 is filled with culture medium, the amount of culture medium contained in the dispensing cylinder 6 is close to the amount of culture medium required in one of the culture dishes. When pouring culture medium into the dispensing cylinder 6, there is no need to check the scale. Just fill the dispensing cylinder 6.

[0036] Before transferring culture medium into multiple culture dishes using the sample culture device described in this utility model, multiple rubber stoppers 4 are pressed downward by the holding part, so that the rubber stoppers 4 can be tightly inserted into the corresponding conical holes 3. During the process of pouring culture medium into the dispensing cylinder 6, the possibility of culture medium in the dispensing cylinder 6 leaking downward through the gap between the rubber stopper 4 and the conical hole 3 can be reduced.

[0037] In this embodiment: the liquid distribution section further includes a drain pipe 8, which is disposed on the plate 2. The upper end of the drain pipe 8 is connected to the upper side of the plate 2, the lower end of the drain pipe 8 is located below the plate 2, and the upper end of the drain pipe 8 is located outside the liquid distribution cylinder 6 and inside the liquid baffle frame 7.

[0038] Before pouring the culture medium into the dispensing cylinder 6, place another conical flask next to the sample culture device of this invention, and insert the lower end of the drain tube 8 into the conical flask. When pouring the culture medium into each of the dispensing cylinders 6, if the culture medium overflows from the dispensing cylinder 6 or is accidentally poured outside the dispensing cylinder 6, the drain tube 8 can discharge the culture medium located in the baffle frame 7 on the plate 2 into the conical flask for collection, facilitating the collection of culture medium overflowing from the dispensing cylinder 6 or accidentally poured outside the dispensing cylinder 6. The drain tube 2 is a flexible tube, which can be pulled arbitrarily to change the position of the lower end of the drain tube 2.

[0039] In this embodiment: the connecting part includes a supporting part and a pressing part. The supporting part is disposed on the base and is used to horizontally support the plate 2. The pressing part is disposed on the base and is used to press the plate 2 downward onto the supporting part.

[0040] The supporting part provides horizontal support for the plate 2, and the pressing part presses the plate 2 onto the supporting part. With this structure, the connecting part can fix the plate 2 to the base, and the connecting part can fix the base and the dispensing part together. The supporting plate supports the plate 2 to a horizontal position, preventing the dispensing cylinder 6 from tilting and ensuring that the culture medium in the dispensing cylinder 6 does not overflow before its inner cavity is filled with culture medium. It can be understood that in other embodiments, the connecting part can also be multiple connecting rods, with both ends of each connecting rod fixedly connected to the plate 2 and the base respectively. With this structure, the connecting part can also fixably connect the base and the dispensing part.

[0041] In this embodiment: the support part includes three support members arranged in an equilateral triangle on the base. The support members include a screw 9, a threaded sleeve 10 and an abutment head 11. The screw 9 is fixed on the base, the threaded sleeve 10 is screwed onto the screw 9, and the abutment head 11 is fixed on the upper end of the threaded sleeve 10. The top surface of the abutment head 11 is spherical.

[0042] When the support part supports the plate 2, the plate 2 is supported on the three abutment heads 11. By rotating the three threaded sleeves 10 on the three screws 9 respectively, the height of the three threaded sleeves 10 can be adjusted, and thus the height of the three abutment heads 11 can be adjusted, so that the tops of the three abutment heads 11 can be adjusted to the same horizontal plane. With this structure, the support part can horizontally support the plate 2 above the base. It can be understood that the abutment heads 11 are not a necessary structure of this utility model. Omitting the abutment heads 11, the tops of the three threaded sleeves 10 can also achieve horizontal support for the plate 2.

[0043] In this embodiment, a circular leveling bubble level 12 is provided on the plate 2. After supporting the plate 2 on the three contact heads 11, the height of the three contact heads 11 is adjusted. By observing the circular leveling bubble level 12, it is possible to visually determine whether the plate 2 has been adjusted to a horizontal state.

[0044] In this embodiment: the pressing part includes two pressing members, both of which are fixed on the base and located on opposite sides of the plate 2; each pressing member includes a vertical plate 13, a horizontal plate 14, a through hole, a pressing rod 15, a first screw hole, and a first bolt 16. The vertical plate 13 is fixed on the base, and the horizontal plate 14 is fixed on the upper end of the vertical plate 13. One end of the horizontal plate 14 protrudes from the side of the vertical plate 13 facing the plate 2. The through hole vertically penetrates the upper and lower sides of the horizontal plate 14. The pressing rod 15 is slidably fitted in the through hole. The first screw hole is provided on the horizontal plate 14. One end of the first screw hole is connected to the through hole, and the other end of the first screw hole is connected to the outer surface of the horizontal plate 14. The first bolt 16 is screwed into the first screw hole. The first screw hole is perpendicular to the through hole, and the screw-in end of the first bolt 16 is used to abut against the pressing rod 15.

[0045] Rotate the first bolt 16 within the first screw hole to disengage the screw-in end of the first bolt 16 from the holding rod 15. At this time, the holding rod 15 can move up and down within the through hole. Rotate the first bolt 16 within the first screw hole to abut the holding rod 15, thus fixing the holding rod 15 within the through hole. After the plate 2 is adjusted to a horizontal position, move the two holding rods 15 downwards, so that both holding rods 15 abut against the upper surface of the plate 2. Then, fix the two holding rods 15 in the two through holes respectively. At this time, the holding part can press the plate 2 downwards onto the support part. The holding rods 15 can also be moved upwards to disengage from the plate 2. At this time, the dispensing part loses the fixation of the holding part and can be removed from the support part for replacement.

[0046] In this embodiment: the base includes a first plate 17, a second plate 18, a connecting plate 19, second screw holes, and second bolts 20. The second plate 18 is located below the first plate 17 and is parallel to the first plate 17. The connecting plate 19 connects the first plate 17 and the second plate 18. There are two second screw holes, both formed on the second plate 18. There are two second bolts 20, each screwed into one of the second screw holes, with the screw-in end of the second bolt 20 facing upwards. The placement plate 1 is supported on the first plate 17. The lower end of the screw rod 9 and the lower end of the vertical plate 13 are fixedly connected to the upper side of the first plate 17. It can be understood that the number of second screw holes and second bolts 20 is not limited to two. For example, in some embodiments, the number of second screw holes and second bolts 20 can be other than two, as long as the number of second screw holes and second bolts 20 is the same and they correspond one-to-one.

[0047] There is a gap between the first plate 17 and the second plate 18. When the base is installed on the operating table, the first plate 17 is positioned above the table surface, and the second plate 18 and the second bolt 20 are positioned below the table surface. By rotating the second bolt 20 within the second screw hole, the screw-in end of the second bolt 20 is forced upwards against the table surface, thus fixing the base to the operating table. Moving the placement plate 1 upwards keeps the base stationary.

[0048] In this embodiment, the upper side of the placement plate 1 is recessed to form a placement groove 21 corresponding to the position of each of the dispensing cylinders 6. The placement groove 21 is used to place the culture dish. When placing the culture dish on the placement plate 1, the culture dish is placed in the placement groove 21, and the placement groove 21 acts as a limit for the culture dish located therein. When the placement plate 1 is moved upward, the possibility of the culture dish slipping off the placement plate 1 can be reduced.

[0049] In this embodiment: The placement plate 1 has two guide holes, both of which perpendicularly penetrate the placement plate 1. The sample culture device of this invention also includes two guide rods 22, each corresponding to one of the guide holes. The guide rods 22 are adapted to the guide holes and are vertically arranged. The lower end of each guide rod 22 is fixedly connected to the base; specifically, the lower end of each guide rod 22 is fixedly connected to the first flat plate 17. The guide rods 22 and the guide holes work together to guide the vertical movement of the placement plate 1. During the upward movement of the placement plate 1, it prevents the placement plate 1 from shifting, ensuring that each culture dish on the placement plate 1 remains aligned with its corresponding dispensing cylinder 6. It is understood that the number of guide holes and guide rods 22 is not limited to two. In other embodiments, the number of guide holes and guide rods 22 can be more than two, as long as the number of guide rods 22 and guide holes are the same and correspond one-to-one.

[0050] In this embodiment, the pressing part includes a pressure plate 23, multiple vertical rods 24 fixed to the lower side of the pressure plate 23, and a handle 25 fixed to the middle of the upper side of the pressure plate 23. The multiple vertical rods 24 correspond one-to-one with the multiple rubber plugs 4.

[0051] When multiple rubber stoppers 4 need to be pressed downwards, the operator picks up the pressure plate 23 using the handle 25, then moves the pressure plate 23 above the multiple rubber stoppers 4, aligning the multiple vertical rods 24 one-to-one with the multiple rubber stoppers 4. Then, the pressure plate 23 is moved downwards, causing the multiple vertical rods 24 to move downwards, pressing down on the multiple rubber stoppers 4 one-to-one. The multiple vertical rods 24 provide downward pressure to the multiple rubber stoppers 4. With this structure, the pressing part can press down on multiple rubber stoppers 4. Furthermore, the pressing part can press down on multiple rubber stoppers 4 simultaneously, which is convenient when pressing down on multiple rubber stoppers.

[0052] After the multiple vertical rods 24 press down on the multiple rubber stoppers 4 in a one-to-one correspondence, the pressing part is removed, and then the sample culture device of this utility model can be used to transfer the culture medium into multiple culture dishes respectively. It should be noted that before using the pressing part to press down on the rubber stoppers 4, the pressing part also needs to be thoroughly disinfected, specifically by alcohol disinfection or ultraviolet disinfection.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sample culture device, characterized by: The device comprises a base, a placing plate arranged on the base and used for placing culture dishes, a dispensing part arranged above the placing plate, and a connecting part used for fixedly connecting the base and the dispensing part; the dispensing part comprises a plate body, a plurality of tapered holes formed on the plate body and penetrating through the plate body, a plurality of rubber plugs arranged in the plurality of tapered holes one by one in a corresponding manner, a plurality of push rods arranged below the plurality of rubber plugs in a corresponding manner, a pressing part used for pressing the plurality of rubber plugs downward, a plurality of dispensing cylinders arranged around the plurality of tapered holes in a corresponding manner and protruding upward from the upper side of the plate body, and a liquid blocking frame protruding upward from the upper side of the plate body; the large end of the tapered hole faces upward, and each dispensing cylinder is located in the liquid blocking frame.

2. The sample culture device of claim 1, wherein: The dispensing part further comprises a liquid discharge pipe arranged on the plate body, the upper end of the liquid discharge pipe communicates with the upper side of the plate body, and the lower end of the liquid discharge pipe is located below the plate body; the upper end of the liquid discharge pipe is located outside the dispensing cylinder and in the liquid blocking frame.

3. The sample culture device of claim 1, wherein: The connecting part comprises a supporting part arranged on the base and used for horizontally supporting the plate body, and a pressing part arranged on the base and used for pressing the plate body downward on the supporting part.

4. The sample culture device of claim 3, wherein: The supporting part comprises three supporting members arranged in an equilateral triangle on the base; the supporting member comprises a screw rod fixedly arranged on the base, a threaded sleeve screwed on the screw rod, and a contact head fixedly arranged on the upper end of the threaded sleeve; the top surface of the contact head is spherical.

5. The sample culture device of claim 4, wherein: A circular horizontal bubble instrument is arranged on the plate body.

6. The sample culture device of claim 3, wherein: The pressing part comprises two pressing members fixedly arranged on the base and located at two opposite sides of the plate body; the pressing member comprises a vertical plate fixedly arranged on the base, a horizontal plate fixedly arranged on the upper end of the vertical plate and protruding from one end of the vertical plate toward the side of the plate body, a through hole vertically penetrating through the upper and lower sides of the horizontal plate, a pressing rod slidingly fitted in the through hole, a first screw hole arranged on the horizontal plate and communicating with the through hole at one end and communicating with the outer surface of the horizontal plate at the other end, and a first screw screwed in the first screw hole; the first screw hole is perpendicular to the through hole, and the screw-in end of the first screw is used for abutting against the pressing rod.

7. The sample culture device of claim 1, wherein: The base comprises a first plate, a second plate arranged below the first plate and parallel to the first plate, a connecting plate connecting the first plate and the second plate, at least one second screw hole formed on the second plate, and at least one second screw screwed in each second screw hole in a corresponding manner.

8. The sample culture device of claim 1, wherein: The upper side of the placing plate is recessed downward at positions corresponding to each dispensing cylinder to form a placing groove for placing culture dishes.

9. The sample culture device of claim 1, wherein: The placing plate is provided with at least two guide holes vertically penetrating through the placing plate; the placing plate is further provided with at least two guide rods arranged in each guide hole in a corresponding manner; the guide rod is matched with the guide hole; the guide rod is vertically arranged; and the lower end of the guide rod is fixedly connected with the base.

10. The sample culture device of any one of claims 1-9, wherein: The pressing part comprises a pressing plate, a plurality of vertical rods fixed to the lower side of the pressing plate, and a handle fixed to the middle of the upper side of the pressing plate, and the plurality of vertical rods correspond to the plurality of rubber plugs one by one.

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