CN109174860B

CN109174860B - Test tube cleaning equipment for chemical experiment teaching

Info

Publication number: CN109174860B
Application number: CN201811060694.2A
Authority: CN
Inventors: 徐景新
Original assignee: Nanjing Hanmingzhi Intelligent Technology Co Ltd
Current assignee: Nanjing Hanmingzhi Intelligent Technology Co Ltd
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2021-06-15
Anticipated expiration: 2038-09-12
Also published as: CN109174860A

Abstract

The invention relates to cleaning equipment for chemical experiment teaching, in particular to test tube cleaning equipment for chemical experiment teaching. The technical problems of the invention are as follows: the utility model provides a can self-cleaning test tube, can be with test tube cleaning's chemical experiment teaching's test tube cleaning equipment. The technical scheme of the invention is as follows: a test tube cleaning device for chemical experiment teaching comprises a bottom plate, a waste liquid box, a guide rail, an installation block, a cleaning box, a partition plate, a spray head, a feeding pipe, a first valve, a water pump, a hose, a guide sleeve, a supporting block and the like; the left side on the bottom plate is equipped with the waste liquid case, and the right side is vertical to be connected with the guide rail on the bottom plate, and the top of guide rail is connected with the installation piece, and the left surface of installation piece is connected with washs the case, and the bottom of wasing the case is uncovered formula setting. According to the invention, clear water and lotion are sprayed out of the spray head through the hose and sprayed to the test tube to wash the test tube, the cotton rod rotates to scrub the inside of the test tube, and the roller rotates to scrub the outside of the test tube through the first cotton ring.

Description

Test tube cleaning equipment for chemical experiment teaching

Technical Field

The invention relates to cleaning equipment for chemical experiment teaching, in particular to test tube cleaning equipment for chemical experiment teaching.

Background

Chemistry is a natural science, and the composition, properties, structure and change rules of substances are researched on the molecular and atomic level; creating the science of new substances. The world is composed of substances, and chemistry is one of the main methods and means used by humans to recognize and reform the substance world. It is a long-standing and energetic subject, and its achievement is an important sign of social civilization, and there are two kinds of change forms of chemical change and physical change in chemistry.

Teaching is a human-specific talent training activity consisting of teacher's teaching and student's learning. Through the activities, teachers purposefully, programmatically and organically guide students to learn and master cultural scientific knowledge and skills, and promote the improvement of the qualities of the students, so that the students become people required by the society.

Chemistry teacher often need take the student to do chemistry experiment together, need use the test tube when doing chemistry experiment, in order to make things convenient for the next time experiment use the test tube and prolong the life of test tube, need wash the test tube after using, it is artifical wash the test tube with cold water and one of washing liquid at present generally, and still need artifically clean the test tube with the rag in abluent while, so waste time and energy, the cleaning efficiency is lower, can put the test tube together in the basin then stirring test tube that does not stop washs the test tube in order to improve cleaning efficiency, so difficult wash the test tube clean, still there is impurity to remain.

Disclosure of Invention

In order to overcome the defect that test tubes are difficult to clean because the test tubes are put in a basin together by manpower and then are continuously stirred to clean the test tubes, the invention has the technical problems that: the utility model provides a can self-cleaning test tube, can be with test tube cleaning's chemical experiment teaching's test tube cleaning equipment.

The technical scheme of the invention is as follows: a test tube cleaning device for chemical experiment teaching comprises a bottom plate, a waste liquid box, a guide rail, an installation block, a cleaning box, a partition plate, a spray head, a feeding pipe, a first valve, a water pump, a hose, a guide sleeve, a supporting block, an installation plate, a snap ring, a rubber ring, a waste water pipe, a second valve, a first bearing seat, a first rotating rod, a first sealing ring, an installation disc, a cotton rod, a first gear, a first speed reducing motor and a second gear, wherein the waste liquid box is arranged on the left side of the bottom plate, the guide rail is vertically connected on the right side of the bottom plate, the installation block is connected on the top of the guide rail, the cleaning box is connected on the left side of the installation block, the bottom of the cleaning box is in an open type arrangement, the partition plate is connected on the upper part of the inner wall of the cleaning box, the spray heads are connected on the left side and the right side of, the water pump is connected with two hoses, the other ends of the two hoses are respectively connected with corresponding spray heads, the guide rail is provided with a guide sleeve, the left side surface of the guide sleeve is connected with a supporting block, the top of the supporting block is connected with a mounting plate, the left side and the right side of the mounting plate are both connected with snap rings, the inner side surface of the snap rings is connected with a rubber ring, the left side of the mounting plate is connected with a waste water pipe, a second valve is arranged in the waste water pipe, the middle part of the mounting plate is provided with a first bearing seat in an embedded manner, a first rotating rod is connected in the first bearing seat, the middle of the top of the mounting plate is connected with a first sealing ring, the first rotating rod penetrates through the first sealing ring, the top end of the first rotating rod is connected with a mounting disc, the top of the mounting disc is evenly and axially connected with cotton, the second gear is engaged with the first gear.

Further, the guide rail device further comprises a second bearing seat, a screw rod and a nut, wherein the second bearing seat is installed on the upper side and the lower side of the right side face of the guide rail, the screw rod is connected between the two second bearing seats, the nut is arranged on the screw rod, and the left side face of the nut is connected with the right side face of the guide sleeve.

Further explaining, still including the inner wall rotary device, the inner wall rotary device is including the third bearing, the second bull stick, the second sealing ring, the cylinder, first cotton ring, the third gear, second gear motor and fourth gear, divide middle on the board and wash the top middle flush mounting of case and have the third bearing, be connected with the second bull stick between two third bearing, divide the top middle of board and wash the top middle of incasement and all be connected with the second sealing ring, the second bull stick passes the second sealing ring, the sub-unit connection of second bull stick has the cylinder, the external connection of cylinder has first cotton ring, the upper portion of second bull stick is connected with the third gear, wash the top right side of case and install second gear motor, the output shaft of second gear motor is connected with the fourth gear through the shaft coupling, the fourth gear meshes with the third gear.

Further, the cleaning device comprises an outer side rotating device, the outer side rotating device comprises a fourth bearing seat, a rotating ring, a second cotton ring, a gear ring, a fifth bearing seat, a third rotating rod, a third sealing ring, a fifth gear, a belt pulley and a flat belt, the fourth bearing seat is installed on the inner wall of the cleaning box below the dividing plate, the rotating ring is connected in the fourth bearing seat, the top and the bottom of the rotating ring are both open, the roller is located in the rotating ring, the second cotton ring is connected on the inner wall of the rotating ring, the gear ring is connected on the upper portion of the outer wall of the rotating ring, the fifth bearing seat is installed on the right side of the dividing plate and the right side of the top of the cleaning box in an embedded mode, the third rotating rod is connected between the two fifth bearing seats, the third sealing ring is connected on the right side of the top of the dividing plate and the right side of the top of the, the fifth gear is meshed with the gear ring, belt pulleys are connected to the upper portion of the third rotating rod and the second rotating rod above the third gear, and a flat belt is wound between the two belt pulleys.

Further explaining, still including fixed block and block rubber, the left and right sides at mounting panel top all is connected with the fixed block, and the top of fixed block is connected with the block rubber.

So when wasing the test tube, open first valve earlier, pour clear water and lotion into through the inlet pipe and wash the incasement, later close first valve, then the manual work will need abluent test tube cover on the cotton stick, then rebound snap ring makes rubber ring rebound again, so can make the mounting panel rebound, and then can make the test tube rebound. After the test tube upwards removed suitable position, stop the rebound snap ring, so the rubber ring card is in the outside of wasing the case to can prevent that the mounting panel from removing downwards, and then can prevent the test tube from removing downwards. Then the manual work starts the water pump again, and clear water and lotion follow the hose blowout and spout to the test tube from the shower nozzle thereupon, so can wash the test tube. The artifical gear motor that starts makes the second gear revolve afterwards, and the second gear revolve and make first bull stick rotate through first gear, and first bull stick rotates and drives the mounting disc and rotate, and the mounting disc board rotates and drives the cotton stick and rotate, and the cotton stick rotates and to clean test tube inside, so can be with test tube sanitization. The cotton stick rotates and can also drive the test tube and rotate, so clear water and lotion carry out the omnidirectional to the outside that can the test tube and wash to can be cleaner with test tube cleaning, can improve the cleaning performance. When the test tube is cleaned and the second valve is opened, dirty water falls into the waste liquid tank through the waste water pipe. After the test tube washing is accomplished, close second valve, water pump and first gear motor simultaneously, then make the mounting panel move down and reset, later with the test tube take off can.

Because still including second bearing seat, lead screw and nut, the upper and lower both sides of guide rail right flank all install second bearing seat, are connected with the lead screw between two second bearing seats, are equipped with the nut on the lead screw, and the left surface of nut and the right flank of guide pin bushing are connected. So artifical clockwise rotation lead screw makes the nut rebound, and the nut rebound drives guide pin bushing rebound to can make the mounting panel rebound, artifical anticlockwise rotation lead screw can make the mounting panel rebound, so can be with the mounting panel fixed more firm, prevent that the mounting panel from removing.

Because still including the inner wall rotary device, the inner wall rotary device is including the third bearing, the second bull stick, the second sealing ring, the cylinder, first cotton ring, the third gear, second gear motor and fourth gear, divide middle on the board and wash the top of case in the middle of all embedded third bearing of installing, be connected with the second bull stick between two third bearing, divide the top of board in the middle of and wash the top in the case in the middle of all be connected with the second sealing ring, the second bull stick passes the second sealing ring, the sub-unit connection of second bull stick has the cylinder, the external connection of cylinder has first cotton ring, the upper portion of second bull stick is connected with the third gear, wash the top right side of case and install second gear motor, second gear motor's output shaft has the fourth gear through the coupling joint, fourth gear and third gear meshing. So the manual work starts second gear motor and makes fourth gear revolve, and fourth gear revolve makes the second bull stick rotate through the third gear, and the second bull stick rotates and drives the cylinder and rotate, and the cylinder rotates and can cleans the outside of test tube through first cotton ring, so can be cleaner with test tube cleaning, improvement cleaning performance that can step forward, after test tube cleaning accomplishes, close second gear motor can.

Because the washing machine also comprises an outer side rotating device, the outer side rotating device comprises a fourth bearing seat, a rotating ring, a second cotton ring, a gear ring, a fifth bearing seat, a third rotating rod, a third sealing ring, a fifth gear, a belt pulley and a flat belt, the inner wall of the washing box below the dividing plate is provided with the fourth bearing seat, the rotating ring is connected in the fourth bearing seat, the top and the bottom of the rotating ring are both open, the roller is positioned in the rotating ring, the inner wall of the rotating ring is connected with the second cotton ring, the upper part of the outer wall of the rotating ring is connected with the gear ring, the fifth bearing seat is embedded on the right side of the dividing plate and the right side of the top of the washing box, the third rotating rod is connected between the two fifth bearing seats, the third sealing ring is connected on the right side of the top of the dividing plate and the right side of the top in the washing box, the fifth gear is meshed with the gear ring, belt pulleys are connected to the upper portion of the third rotating rod and the second rotating rod above the third gear, and a flat belt is wound between the two belt pulleys. So the second bull stick rotates and drives the left side belt pulley and rotate, the belt pulley on left side belt pulley rotates and makes the right side rotate through the flat belt, the belt pulley on right side rotates and drives the third bull stick and rotates, the third bull stick rotates and drives fifth gear revolve, fifth gear revolve makes rotatory ring rotation through the ring gear, rotatory ring rotation can be further through the cotton ring of second clean the outside of test tube, thereby can be further with test tube sanitization, can be further again improve the cleaning performance.

Because still including fixed block and block rubber, the left and right sides at mounting panel top all is connected with the fixed block, and the top of fixed block is connected with the block rubber. The test tube can be supported to the block rubber to can prevent test tube and mounting panel contact, thereby can protect the test tube, prevent that the test tube from colliding with the bits of broken glass.

Compared with the prior art, the invention has the following advantages: according to the automatic cleaning device, clear water and a cleaning agent are sprayed out of the spray head through the hose and sprayed to the test tube to wash the test tube, the cotton rod can scrub the inside of the test tube by rotating, the roller can scrub the outside of the test tube by rotating the first cotton ring, and the rotating ring can further scrub the outside of the test tube by rotating the second cotton ring, so that the test tube can be automatically cleaned and can be cleaned.

Drawings

Fig. 1 is a first front view structure diagram of the present invention.

Fig. 2 is a second front view structure diagram of the present invention.

Fig. 3 is a front view of the inner wall rotating device of the present invention.

Fig. 4 is a front view of the inner wall rotating device and the outer side rotating device of the present invention.

Fig. 5 is a schematic front view of the fixing block and the rubber block of the present invention.

Reference numerals: 1. a bottom plate, 2, a waste liquid tank, 3, a guide rail, 4, a mounting block, 5, a cleaning tank, 6, a dividing plate, 7, a spray head, 8, a feeding pipe, 9, a first valve, 10, a water pump, 11, a hose, 12, a guide sleeve, 13, a support block, 14, a mounting plate, 15, a snap ring, 16, a rubber ring, 17, a waste water pipe, 18, a second valve, 19, a first bearing seat, 20, a first rotating rod, 21, a first sealing ring, 22, a mounting disc, 23, a cotton rod, 24, a first gear, 25, a first speed reduction motor, 26, a second gear, 101, a second bearing seat, 102, a screw rod, 103, a nut, 30, an inner wall rotating device, 301, a third bearing seat, 302, a second rotating rod, 303, a second sealing ring, 304, a roller, 305, a first cotton ring, 306, a third gear, a fourth speed reduction motor, 308, a fourth gear, 31, an outer rotating device, 311, a fourth bearing 307, 312. the rotating ring, 313, the second cotton ring, 314, the gear ring, 315, the fifth bearing seat, 316, the third rotating rod, 317, the third sealing ring, 318, the fifth gear, 319, the belt pulley, 3110, the flat belt, 3121, the fixed block, 3122 and the rubber block.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

A test tube cleaning device for chemical experiment teaching is shown in figures 1-5 and comprises a bottom plate 1, a waste liquid box 2, a guide rail 3, an installation block 4, a cleaning box 5, a partition plate 6, a spray head 7, a feeding pipe 8, a first valve 9, a water pump 10, a hose 11, a guide sleeve 12, a supporting block 13, an installation plate 14, a snap ring 15, a rubber ring 16, a waste water pipe 17, a second valve 18, a first bearing seat 19, a first rotating rod 20, a first sealing ring 21, an installation disc 22, a cotton stick 23, a first gear 24, a first speed reduction motor 25 and a second gear 26, wherein the waste liquid box 2 is arranged on the left side of the bottom plate 1, the guide rail 3 is vertically connected on the right side of the bottom plate 1, the installation block 4 is connected on the top of the guide rail 3, the cleaning box 5 is connected on the left side of the installation block 4, the bottom of the cleaning box 5 is in an open type arrangement, the upper part of the inner wall of the cleaning box 5, the left side of the top of the cleaning box 5 is connected with a feeding pipe 8, a first valve 9 is arranged in the feeding pipe 8, the left side of the top of the dividing plate 6 is provided with a water pump 10, the water pump 10 is connected with two hoses 11, the other ends of the two hoses 11 are respectively connected with corresponding spray heads 7, the guide rail 3 is provided with a guide sleeve 12, the left side surface of the guide sleeve 12 is connected with a supporting block 13, the top of the supporting block 13 is connected with a mounting plate 14, the left side and the right side of the mounting plate 14 are both connected with snap rings 15, the inner side surface of each snap ring 15 is connected with a rubber ring 16, the left side of the mounting plate 14 is connected with a waste pipe 17, a second valve 18 is arranged in each waste pipe 17, the middle of the mounting plate 14 is provided with a first bearing seat 19 in an embedded manner, a first rotating rod 20 is, the top of the mounting disc 22 is connected with cotton swabs 23 at even intervals along the axial direction, the lower part of the first rotating rod 20 is connected with a first gear 24, the bottom of the mounting plate 14 on the right side of the first bearing seat 19 is provided with a first speed reduction motor 25, the output shaft of the first speed reduction motor 25 is connected with a second gear 26 through a coupling, and the second gear 26 is meshed with the first gear 24.

Example 2

The guide rail device is characterized by further comprising a second bearing seat 101, a screw rod 102 and a nut 103, wherein the second bearing seat 101 is installed on the upper side and the lower side of the right side face of the guide rail 3, the screw rod 102 is connected between the two second bearing seats 101, the nut 103 is arranged on the screw rod 102, and the left side face of the nut 103 is connected with the right side face of the guide sleeve 12.

Example 3

The inner wall rotating device 30 comprises a third bearing seat 301, a second rotating rod 302, a second sealing ring 303, a roller 304, a first cotton ring 305, a third gear 306, a second speed reducing motor 307 and a fourth gear 308, the third bearing seat 301 is embedded in the middle of the dividing plate 6 and the top of the cleaning box 5, the second rotating rod 302 is connected between the two third bearing seats 301, the second sealing ring 303 is connected with the middle of the top of the dividing plate 6 and the top of the cleaning box 5, the second rotating rod 302 penetrates through the second sealing ring 303, the roller 304 is connected with the lower part of the second rotating rod 302, a first cotton ring 305 is connected with the outer part of the roller 304, the third gear 306 is connected with the upper part of the second rotating rod 302, the second speed reducing motor 307 is installed on the right side of the top of the cleaning box 5, the output shaft of the second speed reducing motor 307 is connected with the fourth gear 308 through a coupler, the fourth gear 308 is meshed with the third gear 306.

Example 4

The washing machine also comprises an outer side rotating device 31, wherein the outer side rotating device 31 comprises a fourth bearing seat 311, a rotating ring 312, a second cotton ring 313, a gear ring 314, a fifth bearing seat 315, a third rotating rod 316, a third sealing ring 317, a fifth gear 318, a belt pulley 319 and a flat belt 3110, the fourth bearing seat 311 is arranged on the inner wall of the washing box 5 below the dividing plate 6, the rotating ring 312 is connected in the fourth bearing seat 311, the top and the bottom of the rotating ring 312 are both open, a roller 304 is positioned in the rotating ring 312, the second cotton ring 313 is connected on the inner wall of the rotating ring 312, the gear ring 314 is connected on the upper part of the outer wall of the rotating ring 312, the fifth bearing seats 315 are respectively arranged on the right side of the dividing plate 6 and the right side of the top of the washing box 5 in an embedded manner, the third rotating rod 316 is connected between the two fifth bearing seats 315, the right side of the, the third rotating rod 316 passes through the third sealing ring 317, the lower part of the third rotating rod 316 is connected with a fifth gear 318, the fifth gear 318 is meshed with the gear ring 314, the upper part of the third rotating rod 316 and the second rotating rod 302 above the third gear 306 are both connected with pulleys 319, and a flat belt 3110 is wound between the two pulleys 319.

Example 5

The mounting plate is characterized by further comprising a fixing block 3121 and a rubber block 3122, the left side and the right side of the top of the mounting plate 14 are both connected with the fixing block 3121, and the top of the fixing block 3121 is connected with the rubber block 3122.

So when will wasing the test tube, open first valve 9 earlier, pour clear water and lotion into through inlet pipe 8 in wasing case 5 again, later close first valve 9, then the manual work will need abluent test tube cover on cotton stick 23, then upwards remove snap ring 15 makes rubber ring 16 rebound again, so can make mounting panel 14 rebound, and then can make the test tube rebound. After the test tube upwards moved to suitable position, stopped the rebound snap ring 15, so 16 cards of rubber ring are in the outside of wasing case 5 to can prevent mounting panel 14 downstream, and then can prevent the test tube downstream. Then the water pump 10 is manually started again, and then the clean water and the lotion are sprayed out from the spray head 7 through the hose 11 and sprayed to the test tube, so that the test tube can be washed. Subsequently artifical start first gear motor 25 makes second gear 26 rotate, and second gear 26 rotates and makes first bull stick 20 rotate through first gear 24, and first bull stick 20 rotates and drives the mounting disc 22 and rotate, and the rotation of mounting disc 22 board drives cotton swab 23 and rotates, and cotton swab 23 rotates and to scrub test tube inside, so can be with test tube sanitization. Cotton stick 23 rotates and can also drive the test tube and rotate, so clear water and lotion carry out the omnidirectional to the outside that can the test tube and wash to can be cleaner with test tube cleaning, can improve the cleaning performance. Simultaneously with the cleaning of the test tube and the opening of the second valve 18, dirty water falls into the waste tank 2 via the waste pipe 17. After the test tube is cleaned, the second valve 18, the water pump 10 and the first speed reduction motor 25 are closed at the same time, then the mounting plate 14 is moved downwards to reset, and then the test tube is taken down.

Because the guide rail device further comprises a second bearing seat 101, a screw rod 102 and a nut 103, the second bearing seats 101 are respectively arranged on the upper side and the lower side of the right side surface of the guide rail 3, the screw rod 102 is connected between the two second bearing seats 101, the nut 103 is arranged on the screw rod 102, and the left side surface of the nut 103 is connected with the right side surface of the guide sleeve 12. Therefore, the screw rod 102 is manually rotated clockwise to enable the nut 103 to move upwards, the nut 103 moves upwards to drive the guide sleeve 12 to move upwards, so that the mounting plate 14 can move upwards, the screw rod 102 is manually rotated anticlockwise to enable the mounting plate 14 to move downwards, the mounting plate 14 can be fixed more stably, and the mounting plate 14 is prevented from moving.

Because the inner wall rotating device 30 is further included, the inner wall rotating device 30 includes a third bearing seat 301, a second rotating rod 302, a second sealing ring 303, a roller 304, a first cotton ring 305, a third gear 306, a second speed reducing motor 307 and a fourth gear 308, the third bearing seats 301 are embedded in the middle of the dividing plate 6 and the middle of the top of the cleaning box 5, the second rotating rod 302 is connected between the two third bearing seats 301, the second sealing ring 303 is connected in the middle of the top of the dividing plate 6 and the middle of the top in the cleaning box 5, the second rotating rod 302 passes through the second sealing ring 303, the roller 304 is connected to the lower part of the second rotating rod 302, the first cotton ring 305 is connected to the outside of the roller 304, the third gear 306 is connected to the upper part of the second rotating rod 302, the second speed reducing motor 307 is installed on the right side of the top of the cleaning box 5, the output shaft of the second speed reducing motor 307 is connected to the fourth gear 308 through, the fourth gear 308 is meshed with the third gear 306. So the manual work starts second gear motor 307 and makes fourth gear 308 rotate, and fourth gear 308 rotates and makes second bull stick 302 rotate through third gear 306, and second bull stick 302 rotates and drives cylinder 304 rotation, and cylinder 304 rotates and to scrub the outside of test tube through first cotton ring 305, so can be cleaner with test tube cleaning, improvement cleaning performance that can be further, after test tube cleaning accomplishes, close second gear motor 307 can.

Because the device also comprises the outer rotating device 31, the outer rotating device 31 comprises a fourth bearing seat 311, a rotating ring 312, a second cotton ring 313, a gear ring 314, a fifth bearing seat 315, a third rotating rod 316, a third sealing ring 317, a fifth gear 318, a belt pulley 319 and a flat belt 3110, the fourth bearing seat 311 is arranged on the inner wall of the cleaning box 5 below the dividing plate 6, the rotating ring 312 is connected in the fourth bearing seat 311, the top and the bottom of the rotating ring 312 are both open, the roller 304 is positioned in the rotating ring 312, the second cotton ring 313 is connected on the inner wall of the rotating ring 312, the gear ring 314 is connected on the upper part of the outer wall of the rotating ring 312, the fifth bearing seats 315 are embedded on the right side of the dividing plate 6 and the right side of the top of the cleaning box 5, the third rotating rod 316 is connected between the two fifth bearing seats 315, and the third sealing ring 317 is connected on the right side of the, the third rotating rod 316 passes through the third sealing ring 317, the lower part of the third rotating rod 316 is connected with a fifth gear 318, the fifth gear 318 is meshed with the gear ring 314, the upper part of the third rotating rod 316 and the second rotating rod 302 above the third gear 306 are both connected with pulleys 319, and a flat belt 3110 is wound between the two pulleys 319. So second bull stick 302 rotates and drives left side belt pulley 319 and rotate, left side belt pulley 319 rotates and makes right side belt pulley 319 rotate through flat belt 3110, right side belt pulley 319 rotates and drives third bull stick 316 and rotates, third bull stick 316 rotates and drives fifth gear 318 and rotate, fifth gear 318 rotates and makes rotatory ring 312 rotate through ring gear 314, rotatory ring 312 rotates and cleans the outside of test tube that can be further through second cotton ring 313, thereby can be further clean the test tube, can be further the improvement cleaning performance again.

Because still including fixed block 3121 and rubber block 3122, the left and right sides at the top of mounting panel 14 all is connected with fixed block 3121, and the top of fixed block 3121 is connected with rubber block 3122. The test tube can be supported to the block rubber 3122 to can prevent the test tube and the contact of mounting panel 14, thereby can protect the test tube, prevent that the test tube from colliding with the bits of broken glass.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a test tube cleaning equipment of chemistry experiment teaching, comprising a base plate, the waste liquid case, the guide rail, the installation piece, wash the case, cut apart the board, the shower nozzle, the inlet pipe, first valve, water pump and hose, left side on the bottom plate is equipped with the waste liquid case, the vertical guide rail that is connected with in right side on the bottom plate, the top of guide rail is connected with the installation piece, the left surface of installation piece is connected with the washing case, the bottom of wasing the case is uncovered formula setting, the inner wall upper portion of wasing the case is connected with cuts apart the board, the left and right sides of cutting apart board bottom all is connected with the shower nozzle, the top left side of wasing the case is connected with the inlet pipe, be equipped with first valve in the inlet pipe, the water pump is installed in: the waste water pipe is internally provided with the second valve, the first rotating rod is connected in the middle of the mounting plate, the first sealing ring is connected in the first bearing seat, the first rotating rod penetrates through the first sealing ring, the top end of the first rotating rod is connected with the mounting plate, the cotton bars are evenly connected with the cotton bars at intervals along the axial direction at the top of the mounting plate, and the lower part of the first rotating rod is connected with the first gear, a first gear motor is mounted at the bottom of the mounting plate on the right side of the first bearing seat, an output shaft of the first gear motor is connected with a second gear through a coupler, and the second gear is meshed with the first gear; the guide rail is characterized by also comprising second bearing seats, a screw rod and a nut, wherein the second bearing seats are respectively arranged on the upper side and the lower side of the right side surface of the guide rail, the screw rod is connected between the two second bearing seats, the nut is arranged on the screw rod, and the left side surface of the nut is connected with the right side surface of the guide sleeve; still including inner wall rotary device, inner wall rotary device is including third bearing, the second bull stick, the second sealing ring, the cylinder, first cotton ring, the third gear, second gear motor and fourth gear, divide middle on the board and wash the top of case in the middle of all embedded third bearing installed, be connected with the second bull stick between two third bearing, divide the top of board in the middle of and wash the incasement in the middle of all be connected with the second sealing ring, the second bull stick passes the second sealing ring, the sub-unit connection of second bull stick has the cylinder, the external connection of cylinder has first cotton ring, the upper portion of second bull stick is connected with the third gear, wash the top right side of case and install second gear motor, second gear motor's output shaft has the fourth gear through the coupling joint, fourth gear and third gear meshing.

2. The apparatus for cleaning test tubes in teaching chemical experiments according to claim 1, wherein: the cleaning device also comprises an outer side rotating device, the outer side rotating device comprises a fourth bearing seat, a rotating ring, a second cotton ring, a gear ring, a fifth bearing seat, a third rotating rod, a third sealing ring, a fifth gear, a belt pulley and a flat belt, the fourth bearing seat is installed on the inner wall of the cleaning box below the dividing plate, the rotating ring is connected in the fourth bearing seat, the top and the bottom of the rotating ring are both open, the roller is positioned in the rotating ring, the second cotton ring is connected on the inner wall of the rotating ring, the gear ring is connected on the upper part of the outer wall of the rotating ring, the fifth bearing seat is installed on the right side of the dividing plate and the right side of the top of the cleaning box in an embedded manner, the third rotating rod is connected between the two fifth bearing seats, the third sealing ring is connected on the right side of the top of the dividing plate and the right side of the top, the fifth gear is meshed with the gear ring, belt pulleys are connected to the upper portion of the third rotating rod and the second rotating rod above the third gear, and a flat belt is wound between the two belt pulleys.

3. The test tube cleaning device for chemical experiment teaching according to claim 2, wherein: the mounting plate is characterized by further comprising a fixing block and a rubber block, the left side and the right side of the top of the mounting plate are both connected with the fixing block, and the top of the fixing block is connected with the rubber block.