CN110860543A - Automatic cleaning device for oil sample ferrographic analysis glass test tube - Google Patents

Abstract

An automatic cleaning device for an oil sample ferrography glass test tube belongs to the field of oil analysis. The device comprises a test tube clamp unit, a cleaning agent adding unit, a scrubbing unit, a clear water washing unit, a control unit and a shell, wherein the test tube clamp unit is fixed on a clamp supporting plate which is fixed with the shell; the cleaning agent adding unit is fixed with the first catheter fixing frame, the first catheter fixing frame and the shell are fixed, the test tube brush is driven to rotate at a high speed through the motor, the inner wall of the test tube is scrubbed by the mixed cleaning agent with generated scouring force, and the purpose of thoroughly cleaning the test tube is achieved through the flushing unit. The automatic cleaning machine is simple and safe to operate, can realize automatic cleaning after parameters are designed, is high in cleaning efficiency, realizes quantitative use of the cleaning agent, avoids waste, and greatly liberates workers.

Description

An automatic cleaning device for glass test tubes for ferrography analysis of oil samples

technical field

The invention relates to the field of oil analysis, in particular to an automatic cleaning device for an oil sample ferrography analysis glass test tube.

Background technique

Oil sample ferrography analysis technology is a kind of using ferrograph to separate and detect abrasive particles and debris from lubricating oil (grease) samples, so as to analyze and judge the wear type, wear degree and wear parts of mechanical moving pairs. Methods of oil sample analysis. When performing ferrography analysis, because the viscosity of the oil used in the equipment is generally relatively large, in order to improve the efficiency and quality of the chromatogram, it is necessary to absorb the tetrachloroethylene solvent and the oil according to a certain dilution ratio and place it in a glass test tube to mix evenly. When ferrography is used to analyze the operating conditions of mechanical equipment, the number of oil samples taken is generally large, including oil samples from different parts and oil samples from the same part at different operating times. In order to avoid the mixing of oil samples to affect the analysis results, it is required to use one test tube for one oil sample when making a spectrum. Therefore, after analyzing a batch of oil samples, a large number of test tubes are used. In order to prevent the residual oil from depositing on the inner wall of the test tube for a long time, and to prepare for the next experiment, the test tube needs to be cleaned in time.

At present, there are two main methods for cleaning glass test tubes in the laboratory:

(1) Use an ultrasonic cleaner to clean. Since the viscosity of the oil used in the equipment is generally relatively large, it is difficult to clean the residual oil in the test tube by ultrasonic waves, and it also consumes more cleaning agent; in addition, the peeled oil will float in the cleaning tank and easily adhere to the test tube again. The outer wall of the test tube makes it difficult to thoroughly clean the test tube.

(2) Manual cleaning. Add cleaning agent to the test tube to be cleaned, brush manually with a brush, and then rinse with clean water. Disadvantages: In the manual cleaning process, if the operation is improper, the test tube will be broken, which will easily cause harm to the experimenter, and the contaminated oil or cleaning agent may easily cause infection; in addition, the experimenter needs to spend a certain amount of time to clean the test tube, which is time-consuming and laborious, and the cleaning efficiency is not high. high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems that the above-mentioned cleaning method cannot thoroughly clean the test tube, is time-consuming, labor-intensive, and has high risk, and provides an automatic cleaning device for an oil sample ferrography analysis glass test tube.

The technical scheme adopted by the present invention to solve the above problems is: an automatic cleaning device for an oil sample ferrography analysis glass test tube, which is characterized in that it includes a test tube clamp unit, a cleaning agent adding unit, a brushing unit, a clean water flushing unit, a control unit and a shell body.

The test tube fixture unit is fixed on the fixture support plate, and the fixture support plate is fixed with the housing; the cleaning agent addition unit is fixed on the side wall of the housing through the first conduit fixing frame; the brushing unit is connected with the first support The plate and the second support plate are fixed, the first support plate and the second support plate are fixed with the casing; the fresh water flushing unit is fixed on the side wall of the casing through the second conduit fixing frame; the control unit is fixed on the second support plate.

The test tube fixture unit includes a main fixing table, a positioning nut, a spring, and a test tube clamping block; the main fixing table is cylindrical, and its upper end surface is designed with three grooves, and the adjacent grooves are clamped at 120 degrees. There are several sets of positioning holes on the lower end surface, which are convenient for connecting with the fixture support plate; there are three positioning nuts, which are respectively placed at the ends of the corresponding grooves; there are three springs, which are respectively placed in the corresponding positioning holes. Between the nut and the test tube block; the test tube block is provided with a rubber band pulling groove, if the requirements for fixing the test tube are high, the locking force on the test tube can be increased by winding an appropriate amount of rubber band.

The cleaning agent adding unit includes a cleaning agent pump, a cleaning rubber conduit, a plastic cleaning conduit and a cleaning agent tank; the cleaning agent pump is located in the cleaning agent tank and is connected with one end of the cleaning rubber conduit , the other end of the cleaning rubber conduit is connected to the plastic cleaning conduit, and the other end of the plastic cleaning conduit is a conical nozzle located at the upper left of the test tube to be cleaned.

The brushing unit includes a first motor, a first coupling, a lead screw, a nut, a first optical axis, a second optical axis, a second motor, a motor support plate, an upper limit switch, a second coupling, and a test tube. a brush and a lower limit switch; the lead screw and the first optical axis and the second optical axis are fixed between the first support plate and the second support plate, and are connected with the motor support plate , the first motor is connected with the lead screw through the first coupling, the lead screw is connected with the nut, the nut is connected with the motor support plate, the second motor is fixed on the motor support plate, The second motor is connected with the test tube brush through the second coupling, and the upper and lower limit switches are fixed on the casing. The first motor drives the screw to rotate through the first coupling to move the motor support plate up and down, and the upper and lower limit switches limit the travel of the motor support plate, so that the test tube brushes The lowest position is at the bottom of the test tube, and the highest position is convenient for taking and placing the test tube. The second motor can be set with different rotational speeds to achieve cleaning requirements for test tubes with different degrees of contamination. The connection between the second motor and the test tube brush is realized through the second coupling, so that the sight tube brush can be changed, and the cleaning of the test tubes of different specifications is facilitated. The test tube brush requires a certain length of bristles and is long enough to reduce other associated effects.

The clear water flushing unit includes a clear water tank, a flushing pump, a flushing rubber conduit and a plastic flushing conduit; the flushing pump is located in the clear water tank and is connected to one end of the flushing rubber conduit, and the flushing The other end of the rubber conduit is connected to the plastic flushing conduit, and the other end of the plastic flushing conduit is a conical spray head located at the upper right of the test tube to be cleaned.

The control unit controls the cleaning agent pump, the first motor, the second motor and the flushing pump through a program, thereby respectively controlling the amount of cleaning agent added, the test tube brushing speed, the test tube brushing time and the clean water flushing time.

The casing is the overall appearance design of the automatic cleaning mechanical device. The bottom plate is designed with a certain slope, and a liquid discharge port is arranged in the middle of the bottom plate to facilitate the collection and discharge of waste liquid. The casing is fully sealed around it. To avoid splashing of waste liquid, the front of the casing is made of transparent material, which is convenient for observing the internal working conditions. The back of the casing is designed with two grooves, where the cleaning agent tank and the clean water tank are placed.

Further, the cleaning agent pump and the flushing pump can be installed corresponding to the cleaning agent tank and the clean water tank, which is convenient for the movement of the whole machine, and can also be directly installed on the corresponding pipeline in the laboratory to reduce the addition of cleaning agent. and clear water is necessary.

Further, the plastic cleaning conduit and the plastic flushing conduit can be manually bent to adjust the nozzle position according to the required cleaning requirements.

Further, the control unit is provided with an alarm system, which will prompt when the cleaning of a test tube is completed, or when the device fails.

Compared with the existing cleaning methods, the advantages of the present invention are as follows:

First, it does not require much manual operation, liberating the experimental staff.

Second, it can clean the test tube more efficiently and reduce the waste of cleaning agent.

Third, it can avoid the infection and injury caused by toxic substances or test tube damage during the cleaning process, and reduce the risk of work.

Description of drawings

FIG. 1 is a front view of the overall structure of the present invention.

FIG. 2 is a rear view of the overall structure of the present invention.

FIG. 3 is a front view of the structure of the test tube clamp unit of the present invention.

FIG. 4 is a top view of the structure of the test tube clamp unit of the present invention.

Fig. 5 is a left side view of the structure of the cleaning agent addition unit of the present invention.

FIG. 6 is a left side view of the structure of the brushing unit of the present invention.

FIG. 7 is a right side view of the structure of the clean water flushing unit of the present invention.

FIG. 8 is a working flow chart of the present invention.

Description of reference numbers:

1- Test tube fixture unit, 2- Detergent adding unit, 3- Brush unit, 4- Clean water flushing unit, 5- Control unit, 6- Housing, 7- Fixture support plate, 8- Second support plate, 9- Section A catheter fixing frame, 10-second catheter fixing frame, 11-first support plate, 12-main fixing table, 13-positioning nut, 14-spring, 15-test tube clamp, 16-groove, 21-cleaning agent Tank, 22-cleaning agent pump, 23-cleaning rubber conduit, 24-plastic cleaning conduit, 31-first motor, 32-first coupling, 33-lead screw, 34-nut, 35-first optical shaft, 36-second optical axis, 37-second motor, 38-motor support plate, 39-upper limit switch, 40-second coupling, 41-test tube brush, 42-lower limit switch, 43-rinsing pump, 44 - Rinse rubber conduit, 45- Plastic flush conduit, 46- Clean water tank, 61- Bottom plate, 62- Drain port.

Detailed ways

In order to more fully understand the technical content of the present invention, the present invention will be described in detail below with reference to the related drawings.

Referring to Figures 1 and 2, an automatic cleaning device for an oil sample ferrography analysis glass test tube is shown, including a test tube fixture unit 1, a cleaning agent adding unit 2, a brushing unit 3, a clean water flushing unit 4, a control unit 5 and a housing. 6. The test tube fixture unit 1 is fixed on the fixture support plate 7, and the fixture support plate 7 is fixed with the housing 6; the cleaning agent addition unit 2 is fixed on the side wall of the housing 6 through the first conduit fixing frame 9; the The brushing unit 3 is fixed with the first support plate 8 and the second support plate 11, and the first support plate 8 and the second support plate 11 are fixed on the housing 6; It is fixed on the side wall of the casing 6 ; the control unit 5 is fixed on the second support plate 11 .

As shown in FIGS. 3 and 4 , the test tube clamp unit 1 includes a main fixing table 12 , a positioning nut 13 , a spring 14 and a test tube clamping block 15 . Among them, the main fixing table 12 is cylindrical, and its upper end surface is designed with three grooves 16, and the adjacent grooves 16 form an included angle of 120 degrees. The three positioning nuts 13 are respectively placed at the ends of the corresponding grooves 16 , and the three springs 14 are respectively placed between the corresponding positioning nuts 13 and the test tube clamping block 15 . The test tube block 15 is provided with a rubber band pulling groove. If the requirements for fixing the test tube are high, the locking force on the test tube can be increased by winding an appropriate amount of rubber band to ensure that it will not be thrown away under the drive of the high-speed rotating test tube brush. . The test tube fixture unit is an elastic device as a whole, which uses the spring force to realize the fixation of the test tube.

As shown in FIG. 5 , the cleaning agent adding unit 2 includes a cleaning agent tank 21 , a cleaning agent pump 22 , a cleaning rubber conduit 23 and a plastic cleaning conduit 24 . The cleaning agent pump 22 is located in the cleaning agent tank 21, and is connected with one end of the cleaning rubber conduit 23, the other end of the cleaning rubber conduit 23 is connected with the plastic cleaning conduit 24, and the other end of the plastic cleaning conduit 24 is a conical nozzle, located in the test tube to be cleaned top left. Adjust the nozzle position of the plastic cleaning conduit 24 , use the cleaning agent pump 22 to suck a certain amount of cleaning agent from the cleaning agent tank 21 , and transport it to the test tube to be cleaned through the plastic cleaning conduit 24 .

As shown in FIG. 6, the brushing unit 3 includes a first motor 31, a first coupling 32, a lead screw 33, a nut 34, a first optical axis 35, a second optical axis 36, a second motor 37, and a motor support Plate 38 , upper limit switch 39 , second coupling 40 , test tube brush 41 and lower limit switch 42 . The lead screw 33, the first optical axis 35 and the second optical axis 36 are fixed between the first support plate 8 and the second support plate 11 to limit the left and right rotation of the motor support plate 38. The shaft 32 is connected with the lead screw 33, the lead screw 33 is connected with the nut 34, the nut 34 is connected with the motor support plate 38, the second motor 37 is fixed on the motor support plate 38, and the second motor 37 is realized by the second coupling 40 The connection between the second motor 37 and the test tube brush 41 can realize the replacement of the tube brush, which is convenient for the cleaning of test tubes of different specifications, and the second motor 37 can be set with different rotational speeds to achieve the cleaning requirements for test tubes with different degrees of pollution. , the second motor 37 drives the test tube brush 41 to rotate at a high speed, mixes the cleaning agent, and thoroughly brushes the residual oil sample on the inner wall of the test tube. The first motor 31 drives the lead screw 33 to rotate through the first coupling 32 to move the motor support plate 38 up and down, and the upper limit switch 39 and the lower limit switch 42 fixed on the housing 6 limit the stroke of the motor support plate 38 , so that the lowest position of the test tube brush 41 is at the bottom of the test tube, and the highest position is convenient for taking and placing the test tube.

As shown in FIG. 7 , the clean water flushing unit 4 includes a flushing pump 43 , a flushing rubber conduit 44 , a plastic flushing conduit 45 and a clean water tank 46 . The flushing pump 43 is located in the clean water tank 46, and is connected with one end of the flushing rubber conduit 44, the other end of the flushing rubber conduit 44 is connected with the plastic flushing conduit 45, and the other end of the plastic flushing conduit 45 is a conical nozzle, located at the end of the test tube to be cleaned. top right. Adjust the nozzle position of the plastic flushing conduit 45 , use the flushing pump 43 to suck a certain amount of clean water from the clean water tank 46 , and flush the washed test tube through the plastic flushing conduit 45 .

The control unit 5 controls the cleaning agent pump 22, the first motor 31, the second motor 37 and the flushing pump 43 through a program, thereby controlling the amount of cleaning agent added, the test tube brushing speed, the test tube brushing time and the clean water rinsing time respectively. In addition, the control unit 5 is further provided with an alarm system, which is used for prompting after the cleaning of a test tube is completed, or when the device fails.

As shown in FIG. 8, the program flow of the control unit 5: after the power is turned on, the addition amount of the cleaning agent, the test tube brushing speed, the test tube brushing time and the water rinsing time are set, and the device starts to work. The control unit 5 controls the cleaning agent pump 22 in the cleaning agent adding unit 2 to start working, and when the amount of cleaning agent added reaches the requirement, the cleaning agent pump 22 stops; the control unit 5 controls the first motor 31 in the brushing unit 3 to start forward, When the lead screw 33 drives the motor support plate 38 down and contacts the lower limit switch 42, the first motor 31 stops; the control unit 5 controls the second motor 37 in the brushing unit 3 to start, and performs the brushing task at the set speed, and the brushing time ends After that, the second motor 37 stops; the control unit 5 controls the first motor 31 to start reversely, and when the lead screw 33 drives the motor support plate 38 to rise and contact the upper limit switch 39, the first motor 31 stops; the control unit 5 controls the clean water to rinse The flushing pump 43 in the unit 4 starts to work. After the flushing time expires, the flushing pump 43 stops and the test tube cleaning is completed.

The bottom plate 61 of the casing 6 is designed to have a certain slope, and a drain port 62 is arranged in the middle of the bottom plate to facilitate the collection and discharge of waste liquid; the casing is fully sealed to avoid splashing of waste liquid; Transparent material, easy to observe the internal working conditions; the back of the casing is designed with two grooves, where the cleaning agent tank 21 and the clean water tank 46 are placed.

The cleaning agent pump 22 and the flushing pump 43 can be installed corresponding to the cleaning agent tank 21 and the clean water tank 46, which is convenient for the movement of the whole machine, and can also be directly installed on the corresponding pipeline in the laboratory to reduce the need for additional cleaning. The plastic pipes 24 and 45 can be manually bent to adjust the nozzle position according to the required cleaning requirements, so that the cleaning agent and water can be injected into the test tube to be cleaned.

The working principle of the present invention: Fix the test tube to be cleaned on the main fixing table 12 of the test tube fixture unit 6, and manually adjust the nozzle positions of the plastic cleaning conduit 24 and the plastic flushing conduit 45. Turn on the power switch, and set the amount of cleaning agent, the rotating speed of the test tube brush, the test tube brushing time and the clean water rinsing time through the control unit 5, and the device starts to work. The cleaning agent pump 22 starts, absorbs a certain amount of cleaning agent from the cleaning agent tank 21, and delivers it to the test tube to be cleaned through the plastic cleaning conduit 24; After contacting the lower limit switch 42, it stops, and the end of the test tube brush is in contact with the bottom of the test tube; the second motor 37 is started, and the second coupling 40 drives the test tube brush 41 to rotate at a high speed, and the mixed cleaning agent brushes the inner wall of the test tube; At the end of the time, the second motor 37 stops, the test tube brush 41 stops rotating, the first motor 31 starts reversely, the driving screw 33 drives the motor support plate 38 to rise, and then drives the test tube brush 41 to rise, and stops rising when it contacts the upper limit switch 39 , leaving enough space to facilitate the flushing of the test tube; the flushing pump 43 is activated, so that the clean water in the clean water tank 46 flows out through the plastic flushing conduit 45 to flush the test tube that has been brushed, and the waste liquid flows out through the drain port 62 in the middle of the bottom plate 61 until flushing At the end of the time, the test tube is cleaned, and the alarm device prompts the cleaning work to be completed. Take out the rinsed test tube and use the dryer to dry it. The complete cleaning process of one glass test tube is over. Except for the necessary manual operations, the rest of the work process is controlled by the control unit. Repeat the above process to continue cleaning other glass test tubes.

The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The above-mentioned examples of the present invention are mainly intended to describe the working principle, and appropriate changes and improvements may be made without departing from the present invention.

Claims (10)

1. The utility model provides an oil appearance ferrography analysis glass test tube's self-cleaning device which characterized in that: comprises a test tube clamp unit (1), a cleaning agent adding unit (2), a brushing unit (3), a clear water washing unit (4), a control unit (5) and a shell (6); the test tube clamp unit (1) is fixed on a clamp support plate (7), and the clamp support plate (7) is fixed with the shell (6); the cleaning agent adding unit (2) is fixed with the first catheter fixing frame (9), and the first catheter fixing frame (9) is fixed with the shell (6); the brushing unit (3) is fixed with the first supporting plate (8) and the second supporting plate (11), and the first supporting plate (8) and the second supporting plate (11) are fixed with the shell (6); the clean water washing unit (4) is fixed with a second catheter fixing frame (10), and the second catheter fixing frame (10) is fixed with the shell (6); the control unit (5) is fixed with the second support plate (11).

2. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: the test tube clamp unit (1) comprises a main fixing table (12), a positioning nut (13), a spring (14) and a test tube clamping block (15); the main fixing table (12) is cylindrical, three grooves (16) are designed on the upper end face of the main fixing table (12), an included angle of 120 degrees is formed between every two adjacent grooves (16), a plurality of groups of mounting positioning holes convenient to be connected with the clamp supporting plate (7) are formed in the lower end face of the main fixing table, three positioning nuts (13) are respectively placed at the tail ends of the three grooves (16), and three springs (14) are respectively placed between the corresponding positioning nuts (13) and the test tube clamping blocks (15); the test tube clamping block (15) is provided with a rubber band groove.

3. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: the cleaning agent adding unit (2) comprises a cleaning agent tank (21), a cleaning agent pump (22), a cleaning rubber conduit (23) and a plastic cleaning conduit (24); the cleaning agent pump (22) is positioned in the cleaning agent groove (21) and is connected with one end of the cleaning rubber conduit (23), the other end of the cleaning rubber conduit (23) is connected with one end of the plastic cleaning conduit (24), the other end of the plastic cleaning conduit (24) is a conical nozzle and is positioned above the left side of the test tube to be cleaned.

4. The automatic cleaning device for the oil sample ferrography glass test tube of claim 3, wherein: the cleaning agent pump (22) is arranged corresponding to the cleaning agent tank (21).

5. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: the brushing unit (3) comprises a first motor (31), a first coupler (32), a lead screw (33), a nut (34), a first optical axis (35), a second optical axis (36), a second motor (37), a motor supporting plate (38), an upper limit switch (39), a second coupler (40), a test tube brush (41) and a lower limit switch (42); the lead screw (33), the first optical axis (35) and the second optical axis (36) are fixed between the first support plate (8) and the second support plate (11) and used for limiting the left-right rotation of the motor support plate (38), the first motor (31) is connected with the lead screw (33) through the first coupler (32) and realizes the connection of the lead screw (33) and the motor support plate (38) through the nut (34), the second motor (37) is fixed on the motor support plate (38) and realizes the connection between the second motor (37) and the test tube brush (41) through the second coupler (40), the visual tube brush replacement is realized, the cleaning of test tubes with different specifications is facilitated, the test tube brush (41) is driven to rotate at high speed through the second motor (37), the first motor (31) drives the lead screw (33) to rotate through the first coupler (32) to realize the up-down movement of the motor support plate (38), the stroke of the motor supporting plate (38) is limited by an upper limit switch (39) and a lower limit switch (42) which are fixed on the shell (6), so that the lowest position of the test tube brush (41) is at the bottom of the test tube, the test tube is convenient to take and place at the highest position, and the length of the bristles of the test tube brush (41) is long enough.

6. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: the clean water washing unit (4) comprises a washing pump (43), a washing rubber conduit (44), a plastic washing conduit (45) and a clean water tank (46); the washing pump (43) is positioned in the clean water tank (46) and is connected with one end of the washing rubber catheter (44), the other end of the washing rubber catheter (44) is connected with the plastic washing catheter (45), and the other end of the plastic washing catheter (45) is a conical nozzle and is positioned at the upper right part of the test tube to be washed.

7. The automatic cleaning device for the oil sample ferrography glass test tube of claim 6, wherein: the flushing pump (43) is arranged corresponding to the clean water tank (46).

8. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: the control unit controls the cleaning agent pump (22), the first motor (31), the second motor (37) and the flushing pump (43) through a computer program, so as to respectively control the addition amount of the cleaning agent, the rotating speed of the test tube brush, the brushing time of the test tube and the flushing time of clear water.

9. The automatic cleaning device for the oil sample ferrography glass test tube of claim 1, wherein: a bottom plate (61) of the shell (6) is inclined, and a liquid discharge port (62) is formed in the middle of the bottom plate, so that waste liquid is collected and discharged conveniently; the periphery is fully sealed; the front surface is made of transparent material, so that the internal working condition can be observed conveniently; the back of the shell is provided with a cleaning agent groove (21) and a clear water groove (46).

10. An automatic cleaning device for oil sample ferrographic analysis glass test tubes is characterized in that the test tubes to be cleaned are fixedly arranged on a main fixing table of a test tube clamp unit as claimed in claim 1, and the positions of nozzles of a plastic cleaning catheter and a plastic flushing catheter are manually adjusted; turning on a power switch, and setting the addition amount of a cleaning agent, the rotating speed of a test tube brush, the brushing time of the test tube and the rinsing time of clear water by using a control unit to start working; starting a cleaning agent pump, sucking the cleaning agent from a cleaning agent groove, and conveying the cleaning agent into a test tube to be cleaned through a plastic cleaning conduit; the first motor is started to drive the screw rod, the motor supporting plate is driven to descend until the motor supporting plate contacts the lower limit switch, and then the motor supporting plate stops, and at the moment, the tail end of the test tube brush contacts the bottom of the test tube; the second motor is started, the test tube brush is driven to rotate at a high speed through the second coupler, and the mixed cleaning agent brushes the inner wall of the test tube; after the brushing time is over, the second motor stops, the test tube brush stops rotating, the first motor is started reversely, the lead screw is driven to drive the motor supporting plate to ascend, the test tube brush is further driven to ascend, the test tube brush stops ascending when contacting the upper limit switch, and enough space is left for the test tube to be washed conveniently; the washing pump is started, so that the clean water in the clean water tank flows out through the plastic washing conduit to wash the scrubbed test tube, the waste liquid flows out through the liquid outlet in the middle of the bottom plate until the washing time is over, the test tube is washed clean, and the alarm device prompts that the washing work is finished; and taking out the washed test tube, and drying by using a dryer, thus finishing the complete cleaning process of the glass test tube.

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