CN114700335A - A petri dish washing machine for laboratory flora culture - Google Patents

Abstract

The invention relates to the field of biochemistry and cytobiology, and discloses a culture dish cleaning machine for laboratory flora culture, which comprises a cleaning box, wherein cleaning liquid boxes are fixedly connected to two sides of the outer part of the cleaning box, water spraying pipes are fixedly arranged on two sides of the inner part of the cleaning box, spraying heads are fixedly arranged at the top ends of the water spraying pipes, one side of the bottom ends of the water spraying pipes is communicated with the cleaning liquid boxes, a booster water pump is fixedly arranged at the communication position, and linkage water pipes are fixedly communicated with the other side of the bottom ends of the water spraying pipes. According to the invention, the movable tray is pushed to move upwards by water pressure generated by the booster water pump during cleaning, so that negative pressure is generated in the cavity inside the movable tray, the clamping pieces on two sides of the adsorption movable tray are tightened inwards until the clamping pieces on two sides contact and clamp a culture dish, and thus the culture dish is clamped by the clamping pieces in the cleaning process, and the problem of culture dish damage caused by unstable placement of the bracket in the cleaning process is avoided.

Description

A petri dish washing machine for laboratory flora culture

technical field

The invention relates to the fields of biochemistry and cell biology, in particular to a petri dish washing machine for laboratory flora culture.

Background technique

In medical, drug, gene and protein research, biological research, drug development laboratories, and other biotechnology applications, a large number of petri dishes are needed to hold experimental samples for observation and experimentation, and the petri dishes are used up after they are used up. It needs to be cleaned for next use. The traditional cleaning method is generally divided into four steps, including soaking, brushing, acid soaking and rinsing. If the petri dish is not cleaned thoroughly, it is easy to produce miscellaneous bacteria, which will affect the later bacterial culture and production. Observed.

The cleaning process of the existing petri dish washing machines is relatively simple, and the continuous cleaning of the petri dish by directly using the cleaning solution not only wastes a large amount of the washing solution, but also is not conducive to the removal of stubborn stains on the petri dish, and the cleaning effect is not good; secondly , During the cleaning process, the petri dish is greatly impacted by the water flow, and the existing petri dish washing machine bracket cannot fix the petri dish well, and is easy to be damaged; for different types of petri dishes, the diameters are different, and now There is a petri dish washing machine that can not be well adapted to the cleaning of different types of petri dishes, and has poor wide applicability.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the use process of the existing petri dish washing machine proposed in the background art, the present invention provides a petri dish washing machine for laboratory flora culture, which has the advantages of multiple washing modes, stable bracket placement and adaptability to different sizes. The advantages of the petri dish solve the technical problems of single cleaning mode, easy damage to cleaning, and limited cleaning by the model of the petri dish proposed in the above-mentioned background art.

The present invention provides the following technical solutions: a petri dish cleaning machine for laboratory flora culture, comprising a cleaning box, two sides outside the cleaning box are fixedly connected with a cleaning liquid tank, and two sides inside the cleaning box are fixedly installed with A water spray pipe, the top of the spray pipe is fixedly installed with a spray head, one side of the bottom end of the spray pipe is connected to the cleaning liquid tank, and a booster pump is fixedly installed at the communication position, and the other side of the bottom end of the spray pipe is fixed A linkage water pipe is communicated, the linkage water pipe is in the shape of "L", the vertical end of the "L" shape of the linkage water pipe is movably sleeved with a push-up block, and the top of the push-up block is movably connected with a moving tray. The mobile tray is in a "T" shape, the middle of the vertical section of the mobile tray's "T" shape is movably sleeved with a tray bottom column, the two ends of the horizontal end of the movable tray are movably sleeved with clamping pieces, and the cleaning box is A control box is fixedly connected to the top, a spring is fixedly installed at the top of the control box, an extension piston is fixedly connected to the bottom end of the spring, and a rotating block is movably sleeved at the bottom end of the extension piston. The top of the block extends into the control box through the top surface of the cleaning box, and a part of the control box is fixedly connected with a turntable, the outer side of the turntable is movably connected with a belt, and one end of the belt is fixedly connected with a motor, and the turntable is fixedly connected with a motor. A bearing disc is movably installed at the bottom end of the rotating block, a main brush head is movably sleeved at the bottom end of the rotating block, an auxiliary brush head is fixedly connected to the bottom end of the main brush head, and both sides of the rotating block are movably sleeved There is an auxiliary brush head, the bottom end and the outer side of the auxiliary brush head are fixedly connected with auxiliary bristles, the side wall of the inner cavity at the top of the rotating block is fixedly installed with a limit buckle, and the clamping piece at the top of the extended control piston A pressure control switch is fixedly installed on the bottom surface, a liquid inlet is opened at the top of the cleaning liquid tank, and a box door is fixedly installed on the front of the cleaning tank.

Preferably, the cleaning liquid tank surrounds both sides and the back of the cleaning box in a "U" shape, and the bottom column of the tray is fixedly connected to the bottom end of the cleaning box.

Preferably, the tray bottom column and the clamping piece together form a "T"-shaped airtight cavity in the moving tray, and the extended control piston, the main brush head and the auxiliary brush head jointly form a "cross" shape in the rotating block Seal the cavity.

Preferably, the rotating block is in the shape of a "cross", and the extended control piston is sleeved inside the top end of the rotating block.

Preferably, the end face of the main brush head is rectangular, and the lowest end of the main brush head is lower than the lowest end of the auxiliary brush head when the main brush head is in the extended state.

Preferably, when the spring is not compressed, the extended control piston compresses the limit buckle to retract into the side wall.

Preferably, the pressure control switch controls the start and stop of the booster water pump, and the booster water pump stops working when the pressure control switch is pressed.

The present invention has the following beneficial effects:

1. The present invention pushes the moving tray to move upward through the water pressure generated by the booster pump during cleaning, so as to generate negative pressure in the internal cavity of the moving tray, and the clamping pieces on both sides of the adsorption moving tray are tightened inward until the two sides are closed. The holder contacts and clamps the culture dish, so as to realize the fast clamping of the culture dish by the holder during the cleaning process, and avoid the problem of damage to the culture dish caused by the unstable placement of the bracket during the cleaning process.

2. The present invention controls the distance that the auxiliary brush heads on both sides move outward by pushing the main brush head during the upward movement of the culture dish. The auxiliary bristles on the brush head contact the inner wall of the petri dish at the same time, and they are cleaned by rotating, so that the side walls of different types of petri dishes with different diameters can be effectively cleaned, avoiding the washing machine from being cultivated. Dish model restrictions.

3. The present invention installs a solenoid valve on the linkage water pipe, and controls the conduction of the linkage water pipe through the solenoid valve, so that it opens in the brushing mode, controls the petri dish to move up and down and washes intermittently; closes in the flushing mode, maintains While the petri dish is stationary, it is continuously flushed to quickly complete the rinsing of the petri dish.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of cleaning state of the present invention;

Fig. 3 is an enlarged schematic diagram of a part of the structure at A in Fig. 2 of the present invention

FIG. 4 is an overall cross-sectional top view of the present invention.

In the picture: 1. Cleaning tank; 2. Cleaning liquid tank; 3. Spray water pipe; 4. Sprinkler head; 5. Booster pump; 6. Linked water pipe; 7. Solenoid valve; 8. Push-up block; 9. Mobile tray ;10, bottom column of tray; 11, clamping part; 12, control box; 13, spring; 14, extended control piston; 15, rotating block; 16, turntable; 17, belt; 18, motor; 19, bearing plate; 20, main brush head; 201, main brush head; 21, auxiliary brush head; 211, auxiliary brush head; 22, limit buckle; 23, pressure control switch; 24, liquid inlet; 25, box door.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1, a petri dish washing machine for laboratory flora culture, including a cleaning box 1, a cleaning liquid tank 2 is fixedly connected to both sides of the outside of the cleaning box 1, and the cleaning liquid tank 2 surrounds the cleaning box in a "U" shape The two sides and the back of 1, the two sides inside the cleaning box 1 are fixedly installed with a spray pipe 3, the top of the spray pipe 3 is fixed with a spray head 4, and one side of the bottom end of the spray pipe 3 is connected with the cleaning liquid tank 2, and is in communication. A booster water pump 5 is installed in a fixed position. The booster pump 5 can pressurize the cleaning fluid in the cleaning fluid tank 2 into the spraying water pipe 3 and spray it out through the spraying head 4. The other side of the bottom end of the spraying water pipe 3 is fixed and connected. There is a linkage water pipe 6, the linkage water pipe 6 is in an "L" shape, the "L"-shaped vertical end of the linkage water pipe 6 is movably sleeved with a push-up block 8, and the top of the push-up block 8 is movably connected with a movable tray 9, booster pump 5. The high pressure generated during operation pushes the push-up block 8 to move upward, thereby pushing the mobile tray 9 to move up, the mobile tray 9 is in a "T" shape, and the middle of the vertical section of the "T"-shaped vertical section of the mobile tray 9 is sleeved with a tray bottom column. 10. The tray bottom column 10 is fixedly connected to the bottom end of the cleaning box 1, and the two ends of the horizontal end of the mobile tray 9 are movably sleeved with the clamping members 11. The tray bottom column 10 and the clamping member 11 together form a “T” in the mobile tray 9. ” type airtight cavity, when the moving tray 9 is pushed up by the push-up block 8, the space in the vertical section of the “T” type airtight cavity increases, and the space in the horizontal section decreases accordingly, pulling the clamping pieces on both sides 11 is tightened to the inside, so that the culture dish placed above the moving tray 9 is clamped and fixed. The clamp 11 is in the shape of an "L", and a rubber anti-skid pad is fixedly installed inside the vertical section of the "L" shape to ensure When the clamping member 11 is tightened to hold the culture dish more tightly, the problems of falling off and damage of the culture dish under pressure are avoided.

Referring to FIG. 2 , a control box 12 is fixedly connected to the top of the cleaning box 1 , a spring 13 is fixedly installed at the top of the control box 12 , and an extended control piston 14 is fixedly connected to the bottom end of the spring 13 , and the bottom end of the extended control piston 14 is movable A rotating block 15 is sleeved, and the rotating block 15 is in the shape of a "cross". The extended control piston 14 is sleeved inside the top of the rotating block 15. The top of the rotating block 15 extends through the top surface of the cleaning box 1 to the control box 12. And the part in the control box 12 is fixedly connected with a turntable 16, the outer side of the turntable 16 is movably connected with a belt 17, one end of the belt 17 is fixedly connected with a motor 18, and the bottom end of the turntable 16 is movably installed with a bearing plate 19, to ensure the rotating block 15 When the turntable 16 is rotated by the motor 18, it does not rub against the top surface of the cleaning box 1. The bottom end of the rotating block 15 is movably sleeved with the main brush head 20, and the bottom end of the main brush head 20 is fixedly connected with the auxiliary brush head 21. , the end face of the main brush head 20 is rectangular, so that the main brush head 20 can follow the rotating block 15 to rotate, the auxiliary brush heads 21 are movably sleeved on both sides of the rotating block 15, and the bottom and outer sides of the auxiliary brush heads 21 are fixed. The auxiliary bristles 211 are connected, and the extended piston 14, the main brush head 20 and the auxiliary brush head 21 together form a "cross"-shaped airtight cavity in the rotating block 15. When the main brush head 20 is in the extended state, the lowest end is lower than the auxiliary brush head 21. At the lowest end of the brush head 21, when the booster pump 5 turns on the water pressure and pushes the moving tray 9 to move upward, the main bristles 201 on the main brush head 20 first contact the bottom surface of the petri dish, and the main bristles 201 rotate under pressure to efficiently clean it. At the same time, the petri dish continues to move up, pushing the main brush head 20 upward to squeeze the "cross"-shaped airtight cavity in the rotating block 15, so that the auxiliary brush head 21 moves to the outside, and pushes the auxiliary brush head 21 to move to the inner wall of the petri dish. Until it comes into contact with it, it effectively cleans the side walls of petri dishes of different diameters.

Referring to FIG. 3 , the limit buckle 22 is fixedly installed on the side wall of the inner cavity at the top of the rotating block 15 . When the spring 13 is not compressed, the extension piston 14 compresses the limit buckle 22 to retract it into the side wall. When the auxiliary brush head 21 extends outward until it contacts the outer wall of the culture dish and stops moving, continue to push the main brush head 20 upward, the air pressure of the "cross"-shaped airtight cavity in the rotating block 15 increases, and pushes the extended control piston 14 to move up Compression spring 13, a pressure-controlled switch 23 is fixedly installed on the bottom surface of the clamp 11 at the top of the extended control piston 14, the pressure-controlled switch 23 controls the start and stop of the booster water pump 5, and the booster pump 5 stops when the pressure-controlled switch 23 is pressed At this time, the extended control piston 14 moves up and presses the pressure control switch 23, the limit buckle 22 pops up to maintain the state that the extended control piston 14 presses the pressure control switch 23, and the water pressure in the linkage water pipe 6 decreases after the booster pump 5 stops working. , the moving tray 9 and the petri dish above it fall, and the main brush head 20 is no longer pushed up so that the main brush head 20 falls back by its own gravity, and the auxiliary brush heads 21 on both sides are recovered correspondingly at the same time, until the main brush head 21 is reset after the main brush head 20 continues to fall, so that the "cross"-shaped airtight cavity space in the rotating block 15 increases and the air pressure decreases. At this time, the negative pressure in the cavity and the elastic force of the spring 13 work together, so that the extended control piston 14 moves down and the limit is snapped again. 22 is pressed back into the side wall, the pressure-controlled switch 23 is not pressed, and the booster pump 5 is turned on again, thereby realizing the intermittent impact of the water flow at the sprinkler head 4 on the petri dish, improving the cleaning effect and saving the cleaning liquid.

Please refer to FIG. 4 , the top of the cleaning solution tank 2 is provided with a liquid inlet 24, which is convenient for the user to replenish the cleaning solution into the cleaning solution tank 2. A box door 25 is fixedly installed on the front of the cleaning solution tank 1 for placing or taking out the cleaning tank. 1 inside the petri dish.

The working principle of the method of use of the present invention is as follows:

When in use, pour the cleaning solution into the cleaning solution tank 2 through the liquid inlet 24, open the box door 25, place the petri dish to be cleaned in the middle of the two clamps 11 on the moving tray 9, close the box door 25 and open the tank door 25. Start the power supply, the booster pump 5 works to pressurize the cleaning liquid in the cleaning liquid tank 2 into the spraying water pipe 3, and sprays it to the surface of the petri dish through the spraying head 4, and at the same time, the pressure in the linked water pipe 6 pushes the push-up block 8 upward. move, thereby pushing the moving tray 9 upward, the space of the vertical section in the "T"-shaped airtight cavity is increased, and the space of the horizontal section of the cavity is correspondingly reduced. The petri dish placed above the moving tray 9 is clamped and fixed. When the moving tray 9 moves upward, the main bristles 201 on the main brush head 20 first contact the bottom surface of the petri dish. Continue to move up, push the main brush head 20 to move up and squeeze the "cross"-shaped airtight cavity in the rotating block 15, so that the auxiliary brush head 21 moves to the outside, and pushes the auxiliary brush head 21 to the inner wall of the culture dish until it contacts with it, Therefore, the side walls of the petri dish with different diameters are effectively cleaned. When the auxiliary brush head 21 extends outward to contact the outer wall of the petri dish and then stops moving, continue to push the main brush head 20 upward, and the “cross” shape in the rotating block 15 The air pressure of the airtight cavity increases, pushes the extended control piston 14 to move up the compression spring 13 and presses the pressure control switch 23, the limit buckle 22 pops up to maintain the state that the extended control piston 14 presses the pressure control switch 23, and the booster pump 5 stops After the operation, the water pressure in the linkage water pipe 6 is reduced, the moving tray 9 and the culture dish above it fall, and the main brush head 20 is no longer pushed up so that the main brush head 20 falls back by its own gravity, and the auxiliary brush heads 21 on both sides are recovered correspondingly at the same time. After the auxiliary brush head 21 is reset, the main brush head 20 continues to fall, so that the "cross"-shaped airtight cavity space in the rotating block 15 increases and the air pressure decreases. 14 Move down and press the limit buckle 22 back into the side wall, the pressure control switch 23 is not pressed, and the booster pump 5 is turned on again, so as to realize the intermittent impact of the water flow at the 4 sprinkler heads on the petri dish and improve the cleaning effect. At the same time, it saves the cleaning liquid. When the petri dish needs to be rinsed after cleaning, switch the cleaning mode to close the solenoid valve 7. At this time, the water flow pressed by the booster pump 5 is directly sprayed through the sprinkler head 4 to rinse, without Push the moving tray 9 to move up, so as to keep the spraying head 4 in a state of always spraying, so as to quickly complete the rinsing of the petri dish.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A petri dish cleaning machine for laboratory flora culture, comprising a cleaning box (1), a cleaning liquid tank (2) is fixedly connected to both sides of the outside of the cleaning box (1), and the cleaning box (1) A spraying water pipe (3) is fixedly installed on both sides of the interior, and a spraying head (4) is fixedly installed at the top of the spraying water pipe (3). (2) Connected, and a booster water pump (5) is fixedly installed in the communication position, and the other side of the bottom end of the spraying water pipe (3) is fixedly connected with a linkage water pipe (6), and the linkage water pipe (6) is "L". " type, the "L"-shaped vertical end of the linkage water pipe (6) is movably sleeved with a push-up block (8), and the top of the push-up block (8) is movably connected with a moving tray (9). The mobile tray (9) is in a "T" shape, the middle of the "T"-shaped vertical section of the mobile tray (9) is movably sleeved with a tray bottom column (10), and both ends of the horizontal end of the mobile tray (9) are movable A clamp (11) is sleeved, a control box (12) is fixedly connected to the top of the cleaning box (1), and a spring (13) is fixedly installed at the top of the inside of the control box (12). The bottom end of 13) is fixedly connected with an extended control piston (14), the bottom end of the extended control piston (14) is movably sleeved with a rotating block (15), and the top of the rotating block (15) passes through the cleaning box (1). ) extends into the control box (12), and the part in the control box (12) is fixedly connected with a turntable (16), the outer side of the turntable (16) is movably connected with a belt (17), the belt A motor (18) is fixedly connected to one end of (17), a bearing disc (19) is movably mounted on the bottom end of the turntable (16), and a main brush head (20) is movably sleeved on the bottom end of the rotating block (15). ), an auxiliary brush head (21) is fixedly connected to the bottom end of the main brush head (20), and auxiliary brush heads (21) are movably sleeved on both sides of the rotating block (15). Auxiliary bristles (211) are fixedly connected to the bottom end and the outer side of (21), a limit buckle (22) is fixedly installed on the side wall of the inner cavity of the top end of the rotating block (15), and the extended control piston (14) A pressure control switch (23) is fixedly installed on the bottom surface of the top clamp (11), a liquid inlet (24) is opened at the top of the cleaning liquid tank (2), and the front of the cleaning tank (1) is fixedly installed There are box doors (25). 2. A petri dish cleaning machine for laboratory flora culture according to claim 1, characterized in that: the cleaning solution tank (2) is in a "U" shape surrounding both sides and the back of the cleaning box (1). , the tray bottom column (10) is fixedly connected to the bottom end of the cleaning box (1). 3. A petri dish washing machine for laboratory flora culture according to claim 1, characterized in that: the tray bottom column (10) and the clamping member (11) are jointly formed in the moving tray (9) A "T"-shaped airtight cavity, the extended control piston (14), the main brush head (20) and the auxiliary brush head (21) together form a "cross"-shaped airtight cavity in the rotating block (15). 4. A petri dish washing machine for laboratory flora culture according to claim 1, characterized in that: the rotating block (15) is in a "cross" shape, and the extended control piston (14) is sleeved inside the top of the rotating block (15). 5 . The petri dish washing machine for laboratory flora culture according to claim 1 , wherein the end surface of the main brush head ( 20 ) is rectangular, and the main brush head ( 20 ) is in a protruding position. 6 . In the state, the lowest end is lower than the lowest end of the auxiliary brush head (21). 6. A petri dish washing machine for laboratory flora culture according to claim 1, characterized in that: when the spring (13) is not compressed, the extended control piston (14) compresses the limit buckle (22) retract it into the side wall. 7. A petri dish washing machine for laboratory flora culture according to claim 1, characterized in that: the pressure control switch (23) controls the start and stop of the booster water pump (5), and the pressure control switch (23) controls the start and stop of the booster water pump (5). When the switch (23) is pressed, the booster water pump (5) stops working.

Images