CN105886380B - A kind of Petri dish box - Google Patents

Abstract

The invention relates to the field of biological experiment equipment, in particular to a petri dish box. The invention provides a petri dish box, comprising a box cover, a base and a petri dish rack, the box cover is cylindrical, hollow inside, closed at the top, threads are provided at the lower end of the inner surface of the side wall, and a ventilation switch is provided in the middle of the side wall; The base is a solid cylinder, the upper end of the side surface is provided with threads, and the top is provided with a jack, the jack does not penetrate the entire base, which is 3/4 of the height of the base, the upper end of the side surface of the base is threaded and the inner surface of the side wall of the box cover Corresponding to the thread at the lower end, the box cover is opened and closed through the thread; the petri dish rack is composed of a pillar and more than one tray. The frame is fixed on the base by pillars and can be disassembled. The culture dish box of the present invention not only provides a private space for the sterilization of the culture dish, the solidification of the medium plate, and the cultivation of special microorganisms, but also can reduce the bacterial contamination rate in the whole process of microorganism inoculation and cultivation.

Description

A petri dish box

technical field

The invention relates to the field of biological experiment equipment, in particular to a petri dish box.

Background technique

Petri dishes are glass experimental equipment often used in microbiology laboratories, mainly used to cultivate various microorganisms. Usually, the process of microbial inoculation and cultivation is as follows: (1) wash and dry the petri dish, wrap it in newspaper, and sterilize it in a pressure cooker; The quantity is limited, so other people can use it at will during the solidification process of the plate); (3) inoculate; (4) put the inoculated culture dish into a disposable fresh-keeping bag; (5) transfer it to the incubator for cultivation (because The number of laboratory incubators is limited, so various microorganisms are cultivated together, and others can open the incubator arbitrarily during the cultivation period). There are obvious defects in the above whole operation process: (1) There is no fixed container for the sterilization of the petri dish, and it can only be wrapped in newspaper, which is not only time-consuming and laborious, but also easy to enter water during the sterilization process, causing the petri dish to scatter and the sterilization is not complete; (2) It is easy to be infected with bacteria during the solidification process of the poured medium plate; (3) the disposable fresh-keeping bag is not only wasteful but also airtight, which is not conducive to the growth of aerobic bacteria; (4) it is not only easy to cultivate various microorganisms in the incubator together Infection, and aerobic anaerobic conditions can not be achieved.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a petri dish box for solving the problems in the prior art.

In order to achieve the above object and other related objects, the present invention provides a petri dish box, comprising a lid, a base and a petri dish rack, the lid is cylindrical, hollow inside, closed at the top, and threaded at the lower end of the inner surface of the side wall , there is a ventilation switch in the middle of the side wall, and there are two ventilation switches, symmetrically distributed left and right; the base is a solid cylinder, the upper end of the side surface is provided with threads, and the top is provided with a jack, the jack does not penetrate the entire base, the depth It is 3/4 of the height of the base. There are three jacks, two of which are distributed symmetrically on the left and right, and the third jack is distributed in the middle of the arc formed by the connection of the first two jacks. The upper end of the side surface of the base is threaded. Corresponding to the thread on the lower end of the inner surface of the side wall of the box cover, the box cover is opened and closed through the thread; the culture dish rack is composed of a pillar and more than one tray. The pillar and the tray are an integral structure and cannot be disassembled. There are three pillars distributed On the edge of the tray, the lower end protrudes from the tray, and the upper end does not protrude, wherein the first pillar and the second pillar are symmetrically distributed on the left and right sides of the tray, and the third pillar is distributed between the first pillar and the second pillar, and the pillar is inserted into the base Corresponding to the hole insertion type, the petri dish rack is fixed on the base through a pillar and is detachable. The tray has a skirt and a 30-degree fan-shaped gap on the edge, which is centrally symmetrical with the third pillar.

Preferably, the ventilation switch is composed of a plugboard, a slot and a ventilation hole.

More preferably, the plug-in board matches the slot.

More optionally, a groove is formed at the middle position of the upper end of the plug-in board.

More preferably, the vent hole is opened on the side wall of the box cover, and a layer of ultrafiltration membrane with a pore size of 0.2 microns is adhered to the inner side of the wall corresponding to the position of the vent hole.

Preferably, the height of the base ≤ the height of the lid.

Preferably, the petri dish box is a cylinder, the diameter of its bottom surface ≥ its height, and the diameter of the bottom surface > the diameter of the tray.

Preferably, the diameter of the tray is 5cm-17cm, the height of the skirt is 1cm, and the interval between trays is 4cm.

Preferably, each component of the petri dish box, including the lid, the base and the petri dish rack, is made of high temperature resistant materials.

The invention provides a petri dish box, which can be used in the whole process of microorganism inoculation and culture, and can also be used alone as a petri dish sterilization container, a medium plate solidification container or a microbial isolation culture container, reducing contamination. bacteria rate. In general, the present invention has the following beneficial effects:

(1) The petri dish box provided by the present invention can be used as a petri dish sterilization container, which can save manpower and material resources, is easy to put and take, and can be sterilized thoroughly;

(2) When the petri dish box provided by the present invention is used as a medium plate solidification container, the poured plate can be placed in any position to wait for solidification, which does not occupy the space of the ultra-clean workbench and can also reduce the possibility of bacterial contamination ;

(3) When the culture dish box provided by the present invention is used as a microbial isolation culture container, when the microorganisms are cultivated in a large incubator, the anaerobic and aerobic conditions can be adjusted as required and the possibility of contaminating other miscellaneous bacteria can be reduced;

(4) When the petri dish box provided by the present invention is used in the whole process of microbial inoculation and cultivation, the operation is convenient and quick, and the petri dish is always in a sterile environment, which greatly reduces the risk of bacterial contamination and improves the success rate of experiments.

Description of drawings

Fig. 1 is a schematic diagram showing the overall structure of the culture dish box of the present invention.

Fig. 2 is a schematic diagram showing the structure of the culture dish box of the present invention when the ventilation switch is turned off.

Fig. 3 is a schematic diagram showing the structure of the culture dish box of the present invention when the ventilation switch is opened.

Component designation description

1 lid

2 base

3 petri dish racks

4 Vent switch

41 board

42 slots

43 Vents

44 ultrafiltration membrane

45 grooves

5 base thread

51 First jack

52 Second jack

53 Third jack

61 First Pillar

62 Second Pillar

63 The third pillar

7 trays

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figures 1 through 3. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

As shown in Figure 1, the present invention provides a kind of petri dish box, comprises lid (1), base (2) and petri dish frame (3), base (2) height≤height of lid (1), petri dish box It is a cylinder, and its bottom surface diameter is greater than or equal to its height, so that when the culture dish is placed on the culture dish rack (3), the whole culture dish box is stable and does not topple over. The box cover (1) is cylindrical, hollow inside, closed at the top, threads are provided at the lower end of the inner surface of the side wall, and two ventilation switches (4) are arranged in the middle of the side wall, symmetrically distributed from left to right; the base (2) is a solid cylinder, Threads are provided on the upper end of the side surface, and three sockets (5) are provided on the top, the sockets (5) do not penetrate the entire base (2), and the depth is 3/4 of the height of the base (2), wherein the first socket (51) It is distributed symmetrically with the second socket (52), and the third socket (53) is distributed in the middle of the arc formed by the connection between the first socket (51) and the second socket (52). On the side of the base (2) The thread at the upper end of the surface corresponds to the thread at the lower end of the inner surface of the side wall of the box cover (1), and the opening and closing of the box cover (1) is controlled by the thread; the culture dish rack (3) is composed of a pillar (6) and more than one tray (7). (6) and pallet (7) are integral structures, can't dismantle. There are three pillars (6), distributed on the edge of the tray (7), the lower end protrudes from the tray (7), and the upper end does not protrude; wherein the first pillar (61) and the second pillar (62) are symmetrically distributed on the left and right sides of the tray, and the Three pillars (63) are distributed between the first pillar (61) and the second pillar (62), which is beneficial to the picking and placing of the culture dish; (3) It is fixed on the base (2), and the space between the pillar (6) and the base (2) is detachable, which is beneficial to the cleaning of each part of the petri dish box. The diameter of the tray (7) is 5cm-17cm, which corresponds to the diameter of the commercially available petri dish; the tray (7) has a skirt with a height of 1cm to prevent the placed petri dish from falling; there is a 30-degree fan-shaped gap on the edge, It is centrally symmetrical with the third pillar (63), which is convenient for taking and placing the culture dish; when the number of trays (7) is greater than 1, the interval between two trays (7) is 4cm.

As Fig. 2, shown in Fig. 3, the ventilation switch (4) on the lid (1) is made up of flashboard (41), slot (42) and ventilation hole (43); Flashboard (41) and slot ( 42) cooperate; the middle position of the upper end of the board (41) has a groove (45), which is convenient for the user to push and pull the board (41) to slide along the slot (42).

As shown in Figure 3, air hole (43) is opened on the lid (1) side wall, and the wall inboard of corresponding air hole (43) position is adhered one deck aperture and is the ultrafiltration membrane (44) of 0.2 micron. During use, if it is necessary to ventilate or create an oxygen supply environment, the inserting plate (41) is pulled away to expose the vent hole (43), and the ultrafiltration membrane (44) inside the vent hole (43) can prevent bacteria and other bacteria from entering, ensuring Aseptic environment in the box; if ventilation is not required or an anaerobic environment is created, the inserting plate (41) is pulled together to seal the air hole (43) to ensure an anaerobic and sterile environment in the box.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (9)

1. a petri dish case, is characterized in that, comprises lid (1), base (2) and petri dish frame (3), and described lid (1) is cylindrical, and inner hollow, top is closed, and sidewall The lower end of the inner surface is provided with threads, and the middle of the side wall is provided with a ventilation switch (4). There are two ventilation switches (4), which are symmetrically distributed from left to right; the base (2) is a solid cylinder, and the upper end of the side surface is provided with threads , the top is provided with a jack (5), the jack (5) does not run through the entire base (2), the depth is 3/4 of the height of the base (2), and there are three jacks (5), of which the first jack (51) and the second jack (52) are symmetrically distributed left and right, and the third jack (53) is distributed in the middle of the circular arc formed by the connection between the first jack (51) and the second jack (52). The thread on the upper end of the side surface of the base (2) corresponds to the thread on the lower end of the inner surface of the side wall of the lid (1), and the opening and closing of the lid (1) is controlled by the thread; the petri dish rack (3) is composed of a pillar (6) and more than one The pallet (7) is composed of the pillar (6) and the pallet (7), which is an integrated structure and cannot be disassembled. There are three pillars (6), which are distributed on the edge of the pallet (7), and the lower end protrudes from the pallet (7). protruding, wherein the first pillar (61) and the second pillar (62) are symmetrically distributed on the left and right sides of the pallet, and the third pillar (63) is distributed between the first pillar (61) and the second pillar (62), the The support (6) corresponds to the inserting type of the base socket (5), and the petri dish holder (3) is fixed on the base (2) through the support (6), and is detachable. The tray (7) has a skirt, and the edge has A 30-degree fan-shaped gap is centrally symmetrical with the third pillar (63). 2. A kind of petri dish box as claimed in claim 1, is characterized in that, described ventilation switch (4) is made up of inserting plate (41), slot (42) and ventilation hole (43). 3. A petri dish box according to claim 2, characterized in that, a groove (45) is formed at the middle position of the upper end of the inserting plate (41). 4. The culture dish box according to claim 2, characterized in that, the inserting plate (41) is matched with the slot (42). 5. A kind of petri dish box as claimed in claim 2, is characterized in that, described air hole (43) is opened on the side wall of lid (1), and the wall inner side of corresponding air hole (43) position adheres a The layer pore size is an ultrafiltration membrane (44) of 0.2 microns. 6. A petri dish box according to claim 1, characterized in that, the height of the base (2)≤the height of the lid (1). 7. A kind of petri dish box as claimed in claim 1, is characterized in that, box body is cylinder, and its bottom surface diameter >= its height, and its bottom surface diameter > tray (7) diameter. 8. A petri dish box as claimed in claim 1, characterized in that, the diameter of the tray (7) is 5cm-17cm, the height of the skirt is 1cm, and the interval between the trays (7) is 4cm. 9. A petri dish box as claimed in claim 1, characterized in that, each component of the petri dish box, including the lid (1), base (2) and petri dish rack (3) is made of high temperature resistant materials .