CN112077091A

CN112077091A - Test tube cleaning equipment for experiments

Info

Publication number: CN112077091A
Application number: CN202010935840.2A
Authority: CN
Inventors: 陈彩萨
Original assignee: Wenzhou Yanggefan Electronic Technology Co ltd
Current assignee: Wenzhou Yanggefan Electronic Technology Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2020-12-15

Abstract

The invention discloses test tube cleaning equipment for experiments, which comprises an equipment body, wherein a loading cavity is arranged at the right part of the equipment body, a loading mechanism capable of sequentially pushing test tubes with openings to the left is arranged in the loading cavity, a turnover cavity is arranged at the left part of the loading cavity, a cleaning mechanism is arranged in the turnover cavity, a trigger mechanism is arranged above the cleaning mechanism, when the equipment works, the bottom of each test tube is grabbed firstly, so that the test tubes are opened to the left and then pushed into a cleaning sleeve leftwards, the cleaning sleeve rotates when the test tubes are pushed in, the inner and outer walls of the test tubes are cleaned through a hairbrush, then clamping jaws loosen the test tubes, the cleaning sleeve overturns to push the test tubes downwards to pass through a cleaning block, so that the outer walls of the test tubes and the bottoms which are not cleaned due to clamping are cleaned, and then the cleaned test tubes.

Description

Test tube cleaning equipment for experiments

Technical Field

The invention relates to the technical field of chemical industry, in particular to test tube cleaning equipment for experiments.

Background

When carrying out the chemistry experiment, test tube and beaker are the most frequent laboratory glassware of use, all wash after the experiment, sometimes in the experimentation test tube or beaker when not enough, need wash used utensil again and use, the beaker has great bore, so it is more convenient when wasing, just need to spend bigger strength and time when wasing the test tube, can influence the experiment and go on, and the inside also is difficult to clean of test tube, can remain chemical, influence the experiment.

Disclosure of Invention

Aiming at the technical defects, the invention provides test tube cleaning equipment for an experiment, which can overcome the defects.

The test tube cleaning equipment for the experiment comprises a machine body, wherein a loading cavity is arranged at the right part of the machine body, a loading mechanism capable of sequentially pushing test tubes with openings towards the left is arranged in the loading cavity, an overturning cavity is arranged at the left part of the loading cavity, a cleaning mechanism is arranged in the overturning cavity, a trigger mechanism is arranged above the cleaning mechanism, the loading mechanism comprises a loading push block which is arranged in the loading cavity in a left-right sliding manner, a driving slide block is arranged in the loading push block in the left-right sliding manner, a push rod is fixedly arranged at the right side of the driving slide block, two pull rods are symmetrically and rotatably arranged in the driving slide block in an up-down manner, the other end of each pull rod is rotatably arranged at the right end of a connecting rod, the two connecting rods are always in a horizontal state and are respectively and slidably arranged at the upper part and the, the device comprises a clamping block, a buffer spring, a triggering mechanism, a connecting slide block, a connecting spline sleeve, a loading cavity push block, a limit groove, a limit block, a pull spring, a stop block and a lifting plate, wherein the buffer block is arranged in the clamping block in a sliding mode up and down, the buffer spring is connected between the buffer block and the clamping block, the triggering mechanism comprises a connecting slide block which is arranged on the upper portion of a turnover cavity in a sliding mode left and right, the connecting spline sleeve is rotatably arranged at the left end of the connecting slide block, the loading cavity push block is fixedly arranged at the right side of the connecting slide block, the limit groove with a downward opening is arranged on the push block, the limit block is arranged in the machine body in a sliding mode up and down, the left side of the connecting slide block is provided with a pull block which is arranged in the machine body in a sliding, a limiting spring is connected between the lifting plate and the limiting block, the cleaning mechanism comprises a turnover block rotatably installed in the turnover cavity, a turnover sleeve is fixedly installed at the rear side of the turnover block, the turnover sleeve is rotatably installed in the machine body, a rotary sleeve is rotatably installed at the right part of the turnover block, the rotary sleeve is fixedly installed at the left side of the cleaning sleeve, a cleaning rod is fixedly installed in the cleaning sleeve, brushes are arranged on the cleaning rod and the inner wall of the cleaning sleeve, an output spline shaft is rotatably installed in the cleaning sleeve, an output spline sleeve is arranged on the output spline shaft, the output spline sleeve is rotatably installed in a power slider, the power slider is slidably installed in the cleaning sleeve from side to side, a return spring connected with the cleaning sleeve is arranged at the right side of the power slider, and a push-out block is fixedly installed at the front side of the power slider, the test tube that the piece can be with among the wiper mechanism is released to the release, rotate among the power slider and install the drive shaft, the drive shaft pass through the bevel gear pair with output spline housing connects, the drive shaft pass through gear and rack meshing transmission with clean the cover is connected.

Beneficially, a motor is arranged on the upper portion of the machine body, a power spline shaft is connected to the left side of the motor, the power spline shaft is rotatably installed in the machine body, a linking spline sleeve is arranged on the power spline shaft in a spline mode, a linking bevel gear is fixedly installed on the linking spline sleeve, a power bevel gear capable of being meshed with the linking bevel gear is arranged on the rear side of the linking bevel gear, the power bevel gear is fixedly installed on a power shaft, the power shaft is rotatably installed in the machine body, a driving gear is fixedly installed on the power shaft, a driving rack is meshed with the upper side of the driving gear and is installed in the machine body in a left-right sliding mode, the right end of the driving rack is fixedly connected with the push rod, and a reset spring connected with the machine.

Beneficially, install the driving sleeve in the rotation of upset piece, the driving sleeve through the belt drive with the power shaft is connected, the driving sleeve pass through the bevel gear pair with the cover is connected rotates, fixed mounting has incomplete gear on the upset cover, incomplete gear left side meshing is connected with the upset gear, upset gear fixed mounting is on the upset axle, the upset axle rotate install in the organism, the upset axle is connected with the driving shaft through the belt drive, the driving shaft rotate install in upper portion, the driving shaft passes through the bevel gear pair and links up the integral key shaft and is connected, it rotates to link up the integral key shaft install in the organism, link up the integral key shaft can with link up the integral key sleeve splined connection.

Beneficially, a transmission spline shaft is rotatably mounted in the turnover block, two ends of the transmission spline housing are rotatably mounted in the machine body, the front end of the transmission spline housing is connected with the transmission shaft through belt transmission, a transmission spline housing is splined on the transmission spline shaft, the transmission spline housing is rotatably mounted in a transmission sliding block, the transmission sliding block is slidably mounted in the turnover block back and forth, a connecting spring connected with the turnover block is arranged at the front side of the transmission sliding block, a pressing block which is slidably mounted in the turnover block up and down is arranged at the lower side of the transmission sliding block, the pressing block can be pushed after the turnover block rotates so as to drive the transmission sliding block to slide, a transmission bevel gear is fixedly mounted on the transmission spline housing, an output shaft is rotatably mounted in the turnover block and the cleaning housing, and an output bevel gear capable of being meshed with the transmission bevel gear is fixedly mounted at the, the output shaft is connected with the output spline shaft through belt transmission.

Advantageously, the front end of the transmission spline shaft is connected with a cleaning shaft through a bevel gear pair, the cleaning shaft is rotatably mounted in the front wall of the overturning cavity, the lower end of the cleaning shaft is connected with a rotary cleaning block through gear meshing transmission, and the rotary cleaning block is rotatably mounted at the lower part of the overturning cavity.

The beneficial effects are that: the equipment during operation can catch test tube bottom earlier, makes its opening then push the clean cover left in, clean cover can rotate when pushing in, cleans test tube inside and outside wall through the brush, later clamping jaw unclamp the test tube, clean cover upset pushes the test tube downwards through clean piece, makes test tube outer wall and preceding do not have abluent bottom to wash because the centre gripping, again can be followed closely after pushing out the test tube that will wash next test tube.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an experimental tube cleaning apparatus according to the present invention;

FIG. 2 is a schematic view of the structure A-A of FIG. 1;

FIG. 3 is a schematic diagram of B-B of FIG. 1;

FIG. 4 is a schematic diagram of the structure of C-C in FIG. 1;

FIG. 5 is an enlarged schematic view of D of FIG. 1;

FIG. 6 is an enlarged schematic view of E in FIG. 1;

fig. 7 is an enlarged schematic view of F in fig. 2.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-7, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The test tube cleaning equipment for the experiment of the device comprises a machine body 10, wherein a loading cavity 11 is arranged at the right part of the machine body 10, a loading mechanism capable of sequentially pushing test tubes with openings towards the left is arranged in the loading cavity 11, an overturning cavity 12 is arranged at the left part of the loading cavity 11, a cleaning mechanism capable of cleaning the test tubes pushed by the loading mechanism and driving the test tubes to overturn downwards is arranged in the overturning cavity 12, a trigger mechanism capable of being triggered by the loading mechanism and the cleaning mechanism to control the operation of the loading mechanism and the cleaning mechanism is arranged above the cleaning mechanism, the loading mechanism comprises a loading push block 33 which is arranged in the loading cavity 11 in a left-right sliding mode, a driving slide block 32 is arranged in the loading push block 33 in a left-right sliding mode, a push rod 31 is fixedly arranged at the right side of the driving slide block 32, and two pull rods 34 are symmetrically and rotatably arranged at the, the other end of the pull rod 34 is rotatably installed at the right end of the connecting rod 35, the two connecting rods 35 are always in a horizontal state and are respectively installed at the upper portion and the lower portion of the loading push block 33 in a vertically sliding manner, the left end of the connecting rod 35 is fixedly installed with a clamping block 36, the clamping block 36 is installed with a buffer block 37 in a vertically sliding manner, a buffer spring 38 is connected between the buffer block 37 and the clamping block 36, the trigger mechanism comprises a linking slide block 16 which is installed at the upper portion of the turnover cavity 12 in a horizontally sliding manner, a linking spline sleeve 15 is rotatably installed at the left end of the linking slide block 16, a pushing block 17 of the loading cavity 1 is fixedly installed at the right side of the linking slide block 16, the pushing block 17 can be pushed when the loading push block 33 slides to the leftmost end in a left-side manner, a limiting groove 18 with a downward opening is arranged on the pushing block 17, a limiting block 24 which can be, a traction block 20 which is arranged in the machine body 10 in a left-right sliding manner is arranged on the left side of the connecting slide block 16, a traction spring 19 is connected between the traction block 20 and the connecting slide block 16, a stop block 21 which is arranged in the machine body 10 in a vertical sliding manner is arranged on the left side of the traction block 20, the stop block 21 can stop the traction block 20 from sliding left, the lower side of the stop block 21 is fixedly arranged on a lifting plate 22, the lifting plate 22 is arranged in the upper wall of the overturning cavity 12 in a vertical sliding manner, an avoiding spring 23 connected with the machine body 10 is arranged on the upper side of the lifting plate 22, a limiting spring 25 is connected between the lifting plate 22 and the limiting block 24, the cleaning mechanism comprises an overturning block 45 which is rotatably arranged in the overturning cavity 12, an overturning sleeve 44 is fixedly arranged on the rear side of the overturning block 45, the overturning sleeve 44 is rotatably arranged in the machine body 10, and a rotating sleeve 47, the rotating sleeve 47 is fixedly arranged at the left side of the cleaning sleeve 48, a cleaning rod 50 is fixedly arranged in the cleaning sleeve 48, the inner walls of the cleaning rod 50 and the cleaning sleeve 48 are provided with a brush 49, an output spline shaft 59 is rotatably arranged in the cleaning sleeve 48, an output spline housing 60 is arranged on the output spline shaft 59 through a spline, the output spline housing 60 is rotatably arranged in a power slide block 61, the power slide block 61 is arranged in the cleaning sleeve 48 in a left-right sliding manner, a return spring 66 connected with the cleaning sleeve 48 is arranged on the right side of the power slide block 61, a push-out block 63 is fixedly arranged on the front side of the power slide block 61, the push-out block 63 can push out the test tube in the cleaning mechanism, a driving shaft 62 is rotatably mounted in the power slider 61, the driving shaft 62 is connected with the output spline housing 60 through a bevel gear pair, and the driving shaft 62 is connected with the cleaning sleeve 48 through gear-rack meshing transmission.

Advantageously, the upper part of the machine body 10 is provided with a motor 13, the left side of the motor 13 is connected with a power spline shaft 14, the power spline shaft 14 is rotatably installed in the machine body 10, the spline of the power spline shaft 14 is provided with the engaging spline housing 15, the engaging spline housing 15 is fixedly provided with an engaging bevel gear 26, the rear side of the engaging bevel gear 26 is provided with a power bevel gear 67 which can be meshed with the engaging bevel gear 26, the power bevel gear 67 is fixedly mounted on the power shaft 27, the power shaft 27 is rotatably mounted in the machine body 10, a driving gear 28 is fixedly arranged on the power shaft 27, the upper side of the driving gear 28 is engaged and connected with a driving rack 29, the driving rack 29 is installed in the machine body 10 in a left-right sliding manner, the right end of the driving rack 29 is fixedly connected with the push rod 31, and the driving rack 29 is provided with a return spring 30 connected with the machine body 10.

Beneficially, a driving shaft sleeve 46 is rotatably mounted in the turning block 45, the driving shaft sleeve 46 is connected with the power shaft 27 through belt transmission, the driving shaft sleeve 46 is connected with the rotating sleeve 47 through a bevel gear pair, an incomplete gear 43 is fixedly mounted on the turning sleeve 44, a turning gear 42 is meshed and connected with the left side of the incomplete gear 43, the turning gear 42 is fixedly mounted on a turning shaft 41, the turning shaft 41 is rotatably mounted in the machine body 10, the turning shaft 41 is connected with a driving shaft 40 through belt transmission, the driving shaft 40 is rotatably mounted at the upper part of the machine body 0, the driving shaft 40 is connected with a linking spline shaft 39 through the bevel gear pair, the linking spline shaft 39 is rotatably mounted in the machine body 10, and the linking spline shaft 39 can be splined with the linking spline sleeve 15.

Beneficially, a transmission spline shaft 51 is rotatably mounted in the turning block 45, two ends of the transmission spline housing 52 are rotatably mounted in the machine body 10, the front end of the transmission spline housing 52 is connected with the transmission shaft 40 through belt transmission, a transmission spline housing 52 is splined on the transmission spline shaft 51, the transmission spline housing 52 is rotatably mounted in a transmission slider 53, the transmission slider 53 is slidably mounted in the turning block 45 back and forth, an engaging spring 54 connected with the turning block 45 is arranged on the front side of the transmission slider 53, a pressing block 55 vertically slidably mounted in the turning block 45 is arranged on the lower side of the transmission slider 53, the pressing block 55 can be pushed after the turning block 45 rotates, so as to drive the transmission slider 53 to slide, a transmission bevel gear 56 is fixedly mounted on the transmission spline housing 52, an output shaft 58 is rotatably mounted in the turning block 45 and the cleaning housing 48, an output bevel gear 57 capable of being meshed with the transmission bevel gear 56 is fixedly mounted at the left end of the output shaft 58, and the output shaft 58 is connected with the output spline shaft 59 through belt transmission.

Advantageously, the front end of the transmission spline shaft 51 is connected with a cleaning shaft 64 through a bevel gear pair, the cleaning shaft 64 is rotatably mounted in the front wall of the overturning chamber 12, the lower end of the cleaning shaft 64 is connected with a rotary cleaning block 65 through gear meshing transmission, and the rotary cleaning block 65 is rotatably mounted at the lower part of the overturning chamber 12.

In an initial state, the loading push block 33 is positioned at the right part of the loading cavity 11, the cleaning sleeve 48 is in a horizontal state and is opened rightwards, the engaging bevel gear 26 is meshed with the power bevel gear 67, the engaging spline sleeve 15 is separated from the engaging spline shaft 39, the transmission bevel gear 56 is not meshed with the output bevel gear 57, and the avoiding spring 23 and the limiting spring 25 are in a compressed state; when the test tube cleaning machine starts to work, a test tube is placed into the filling cavity 11, the motor 13 is started, so that the power spline shaft 14 can rotate, the engaging spline sleeve 15 is driven to rotate, the power shaft 27 is driven to rotate through engaging transmission of the engaging bevel gear 26 and the power bevel gear 67, the driving rack 29 is driven to slide left through engaging transmission of the driving gear 28 and the driving rack 29, the driving slider 32 is driven to slide left relative to the filling push block 33, the connecting rod 35 is driven to slide relatively close to the filling push block 33 through the pull rod 34, the clamping block 36 is driven to slide, the buffer block 37 clamps the bottom of the test tube, the driving slider 32 drives the filling push block 33 to slide left, the test tube is pushed leftwards to be inserted into the cleaning sleeve 48, meanwhile, the power shaft 27 drives the transmission shaft sleeve 46 to rotate through belt transmission, the rotating sleeve 47 is driven to rotate through bevel gear engaging transmission, so that the brush 49 wipes the inner and outer walls of the test tube, when the loading push block 33 with the test tube slides to the leftmost end, the loading push block 33 pushes the limit groove 18 leftward, so that the limit block 24 can be inserted into the limit groove 18 to limit the reset of the limit groove 18, and drive the engaging slide block 16 to slide leftward, so that the engaging bevel gear 26 is separated from the power bevel gear 67, and the engaging spline housing 15 is splined to the engaging spline shaft 39, so that the cleaning housing 48 stops rotating and the driving rack 29 slides rightward under the action of the return spring 30, so as to drive the driving slide block 32 to slide rightward relative to the loading push block 33, so that the buffer block 37 is separated from the test tube to loosen the test tube, and the engaging spline housing 15 drives the engaging spline shaft 39 to rotate, so that the driving shaft 40 is driven to rotate by bevel gear engagement transmission, so that the reversing shaft 41 is driven to rotate by belt transmission, so that the reversing housing 44 is driven to rotate by engagement, thereby drive upset piece 45 upset, after upset piece 45 overturns, the board 22 that lifts glides under dodging spring 23 effect to drive dog 21 gliding, thereby make traction block 20 slide to the left under the effect of traction spring 19, and spacing spring 25 drives stopper 24 and pulls out from spacing groove 18.

After the turning block 45 is turned to the vertical state, the pressing block 55 is pushed by the left wall of the turning cavity 12, thereby pushing the transmission slide block 53 to slide, so that the transmission bevel gear 56 is meshed with the output bevel gear 57, so that the transmission shaft 40 drives the transmission spline shaft 51 to rotate, thereby driving the transmission spline housing 52 to rotate, thereby driving the output shaft 58 to rotate through the meshing transmission of the transmission bevel gear 56 and the output bevel gear 57, thereby driving the output spline shaft 59 to rotate through belt transmission, driving the output spline housing 60 to rotate, thereby driving the driving shaft 62 to rotate through the bevel gear meshing transmission, driving the power slide block 61 to slide through the rack meshing transmission, thereby driving the push-out block 63 to slide and the test tube to be pushed out downwards, simultaneously driving the transmission spline shaft 51 to drive the cleaning shaft 64 to rotate through bevel gear meshing transmission, thereby drive through gear engagement and rotate cleaning block 65 and rotate to wash the test tube outer wall and the bottom of pushing out downwards.

When the test tube leaves the overturning cavity 12, the motor 13 is rotated reversely so as to rotate the overturning block 45 upwards and reversely, when the cleaning sleeve 48 is rotated to the horizontal state, the lifting plate 22 is pushed upwards so as to push the traction block 20 rightwards through the stop block 21, so as to drive the engaging slider 16 to slide rightwards, so that the transmission spline shaft 51 is separated from the engaging spline shaft 39 and the engaging bevel gear 26 is meshed with the power bevel gear 67, and then the motor 13 is rotated forwards to start the next round of cleaning.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a test tube cleaning equipment for experiments, includes the organism, its characterized in that: a loading cavity is arranged at the right part of the machine body, a loading mechanism capable of sequentially pushing test tubes with openings towards the left is arranged in the loading cavity, an overturning cavity is arranged at the left part of the loading cavity, a cleaning mechanism is arranged in the overturning cavity, and a trigger mechanism is arranged above the cleaning mechanism; the loading mechanism comprises a loading push block which is arranged in the loading cavity in a left-right sliding manner, a driving slide block is arranged in the loading push block in a left-right sliding manner, a push rod is fixedly arranged on the right side of the driving slide block, two pull rods are symmetrically and rotatably arranged in the driving slide block in an up-down manner, the other end of each pull rod is rotatably arranged at the right end of a connecting rod, the two connecting rods are always in a horizontal state and are respectively and slidably arranged on the upper part and the lower part of the loading push block in an up-down manner, a clamping block is fixedly arranged at the left end of each connecting rod, a buffer block is slidably arranged in the clamping; the trigger mechanism comprises a linking slide block which is arranged on the upper part of the turnover cavity in a left-right sliding manner, a linking spline sleeve is rotatably arranged at the left end of the linking slide block, a loading cavity push block is fixedly arranged at the right side of the linking slide block, a limiting groove with a downward opening is formed in the push block, a limiting block is arranged in the machine body in a middle-upper and lower sliding manner, a traction block which is arranged in the machine body in a left-right sliding manner is arranged at the left side of the linking slide block, a traction spring is connected between the traction block and the linking slide block, a stop block which is arranged in the machine body in a vertical sliding manner is arranged at the left side of the traction block, the lower side of the stop block is fixedly arranged on the lifting plate, the lifting plate is arranged in the upper wall of the turnover cavity in a vertical sliding; the cleaning mechanism comprises a turnover block rotatably arranged in the turnover cavity, a turnover sleeve is fixedly arranged at the rear side of the turnover block, the turnover sleeve is rotatably arranged in the machine body, a rotary sleeve is rotatably arranged at the right part of the turnover block, the rotary sleeve is fixedly arranged at the left side of the cleaning sleeve, a cleaning rod is fixedly arranged in the cleaning sleeve, brushes are arranged on the cleaning rod and the inner wall of the cleaning sleeve, an output spline shaft is rotatably arranged in the cleaning sleeve, an output spline sleeve is arranged on the output spline shaft in a spline manner, the output spline sleeve is rotatably arranged in a power slider, the power slider is slidably arranged in the cleaning sleeve in a left-right manner, a return spring connected with the cleaning sleeve is arranged at the right side of the power slider, a push-out block is fixedly arranged at the front side of the power slider, and the push-out block can push out a test tube in the cleaning mechanism, the power slider is internally rotatably provided with a driving shaft, the driving shaft is connected with the output spline sleeve through a bevel gear pair, and the driving shaft is connected with the cleaning sleeve through gear and rack meshing transmission.

2. Test tube washing equipment for experiments according to claim 1, characterized in that: the power shaft is rotatably installed on the machine body, a linking spline sleeve is fixedly installed on the linking spline sleeve, a linking bevel gear is fixedly installed on the linking spline sleeve, a power bevel gear capable of being meshed with the linking bevel gear is arranged on the rear side of the linking bevel gear, the power bevel gear is fixedly installed on a power shaft, the power shaft is rotatably installed in the machine body, a driving gear is fixedly installed on the power shaft, a driving rack is meshed with the upper side of the driving gear and is installed in the machine body in a left-right sliding mode, the right end of the driving rack is fixedly connected with a push rod, and a reset spring connected with the machine body is arranged on the driving rack.

3. Test tube washing equipment for experiments according to claim 2, characterized in that: rotate in the upset piece and install the driving shaft cover, the driving shaft cover through the belt drive with the power shaft is connected, the driving shaft cover pass through the bevel gear pair with the cover is connected to the rotation, fixed mounting has incomplete gear on the upset, incomplete gear left side meshing is connected with the upset gear, upset gear fixed mounting is on the upset axle, the upset axle rotate install in the organism, the upset axle is connected with the driving shaft through the belt drive, the driving shaft rotate install in upper portion, the driving shaft passes through the bevel gear pair and links up the integral key shaft and is connected, it rotates install in to link up the integral key shaft in the organism, link up the integral key shaft can with link up the spline connection of spline housing.

4. The test tube washing device for experiments according to claim 3, characterized in that: a transmission spline shaft is rotatably arranged in the turnover block, two ends of the transmission spline housing are rotatably arranged in the machine body, the front end of the transmission spline housing is connected with the transmission shaft through belt transmission, a transmission spline housing is arranged on the transmission spline shaft in a spline manner, the transmission spline housing is rotatably arranged in a transmission sliding block, the transmission sliding block is slidably arranged in the turnover block in a front-back manner, a connecting spring connected with the turnover block is arranged at the front side of the transmission sliding block, a pressing block which is slidably arranged in the turnover block up and down is arranged at the lower side of the transmission sliding block, the pressing block can be pushed after the turnover block rotates so as to drive the transmission sliding block to slide, a transmission bevel gear is fixedly arranged on the transmission spline housing, an output shaft is rotatably arranged in the turnover block and the cleaning housing, and an output bevel gear capable of being meshed with the transmission, the output shaft is connected with the output spline shaft through belt transmission.

5. Test tube washing equipment for experiments according to claim 4, characterized in that: the front end of the transmission spline shaft is connected with the cleaning shaft through a bevel gear pair, the cleaning shaft is rotatably installed in the front wall of the turnover cavity, the lower end of the cleaning shaft is connected with the rotating cleaning block through gear meshing transmission, and the rotating cleaning block is rotatably installed at the lower part of the turnover cavity.