CN112473765A

CN112473765A - Teaching device is assisted to education technique

Info

Publication number: CN112473765A
Application number: CN202011340120.8A
Authority: CN
Inventors: 陈静远; 张荣凡; 任新社; 于春平; 梅茜
Original assignee: Zhengzhou Railway Vocational and Technical College
Current assignee: Zhengzhou Railway Vocational and Technical College
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-03-12

Abstract

The invention provides an educational technology auxiliary teaching device, which can clamp an experimental tube through the mutual matching use between a clamping device and a protective plate to prevent the sliding phenomenon during use, and can shake liquid or particles in the experimental tube evenly through the matching use between a rotating ball and a sliding box at the same time, the device comprises an experimental box, a bearing plate is arranged in the experimental box in an up-and-down sliding manner, a support column is fixedly arranged at the center of the bearing plate, a sliding disc is coaxially sleeved on the support column, a first pressure spring positioned between the bearing plate and the sliding disc is coaxially sleeved on the support column, a plurality of experimental tubes are uniformly arranged on the circumference of the upper end of the bearing plate, each experimental tube is respectively sleeved with a clamping device, the bearing plate can be overturned through the matching use between a lifting device and a half gear as well as a cleaning device, and the experimental tubes can be cleaned, prevent to remain impurity influence next use in the experiment pipe.

Description

Teaching device is assisted to education technique

Technical Field

The invention relates to the technical field of experimental equipment, in particular to an auxiliary teaching device for education technology.

Background

Chemistry is a natural science, which mainly studies the composition, properties, structure and change rule of substances at molecular and atomic level to create new substances (molecules which do not exist in nature). The world is composed of substances, and two changes (also nuclear reactions) mainly exist, namely chemical changes and physical changes. Unlike particle physics and nuclear physics, which are smaller in research scale, the physical structure and chemical bond of chemically researched atoms, molecules and ions, intermolecular force and the like interact on the scale which is closest to the macroscopic scale in the microscopic world, so that the natural laws of the atoms, the molecules and the ions are also most closely related to the physical and chemical properties of substances and materials in the macroscopic world where human beings live.

The chemical experiment is a relatively intuitive method in teaching, in the chemical experiment process, test tubes of various types are often needed, the test tubes are generally different in size and height, in the chemical experiment process, test tube containing devices of different heights are often needed to be placed, the existing test tube containing devices are single in structure and cannot clamp and fix test tubes of different diameters; and when the student held the test tube and rocked at traditional experimentation, at this moment liquid or the solid in the test tube splashes out easily, causes personal safety to the experimenter, has the inhomogeneous phenomenon of rocking simultaneously.

Therefore, the invention provides an educational technology auxiliary teaching device to solve the problem.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides an auxiliary teaching device for education technology, which effectively solves the problems that the prior device cannot clamp and fix test tubes with different diameters and cannot shake and mix liquid in the test tubes.

The utility model provides an educational technology auxiliary teaching device, includes the experimental box, its characterized in that: the test box is characterized in that a bearing plate is vertically and slidably mounted in the test box, a support column is fixedly mounted at the center of the bearing plate, a sliding disc is coaxially sleeved on the support column, a first pressure spring positioned between the bearing plate and the sliding disc is coaxially sleeved on the support column, clamping devices are uniformly mounted on the circumference of the bearing plate respectively, an experiment tube is placed on each clamping device respectively, an interlocking rod is hinged between each clamping device and the sliding disc respectively, and a nut positioned above the sliding disc is mounted on the support coaxial thread;

the clamping device comprises supporting plates which are fixedly arranged on the bearing plate respectively, the upper end of each supporting plate is fixedly provided with a right clamping plate positioned on one side of the experimental tube respectively, the left end of each right clamping plate is slidably provided with a left clamping plate positioned on the other side of the experimental tube respectively, the upper end surface of each right clamping plate is slidably provided with a first V-shaped plate respectively, the front end of each right clamping plate is slidably provided with a second V-shaped plate which is slidably connected with one end of the first V-shaped plate respectively, and the rear end of each right clamping plate is slidably provided with a third V-shaped plate which is slidably connected with the other end of the first V-shaped plate respectively;

every there is fourth V template, every left side grip block up end slidable mounting respectively the front end of left side grip block slidable mounting respectively have with fourth V template one end sliding connection's fifth V template, every the front end of left side grip block slidable mounting respectively have with fifth V template one end sliding connection's sixth V template, every the second V template other end and the other end sliding connection of fifth V template, every the other end and the sixth V template other end sliding connection of third V template, every second V template overlaps with fifth V template junction and is equipped with the sliding block, every the other end of trace articulates respectively on the sliding block, every the left surface and every of right side grip block the right flank of left side grip block is ball connection respectively has the rolling ball, every a terminal surface fixed connection of rolling ball is located the elastic plate of experiment pipe side.

Preferably, support and live coaxial rotation and install the ring gear that is located on the loading board, rotate respectively on the loading board and install a plurality of and the internal toothing's of ring gear driving gear, even slidable mounting respectively has a plurality of push rods on the loading board, every rotate between push rod and the driving gear and be connected with the dwang, even circumference distribution respectively and slidable mounting have be located every on the loading board state a plurality of slip boxes of push rod one end, and every experimental tube is placed respectively at the slip box.

Preferably, every there is a second pressure spring, every fixed mounting respectively in the slip box the one end difference fixedly connected with of second pressure spring is located the backplate of experiment pipe front side, every install the third pressure spring between the front end of slip box and the rolling disc respectively, every the one end difference fixedly connected with slide bar of backplate, every the bottom difference fixedly connected with of left grip block and the riser of the contact of the slide bar other end, install the last motor with the external tooth meshing of ring gear on the loading board.

Preferably, rotate on the experimental box and install elevating gear, the loading board is installed on elevating gear, elevating gear includes that the screw thread is installed at the lift lead screw between loading board and lifter plate, screw thread installation screw thread board on the lift lead screw, one side of loading board is rotated and is installed on the screw thread board, install the half-gear between loading board and the screw thread board, fixed mounting has the rack plate that is located the experimental box and meshes with the half-gear on the loading board, coaxial fixed mounting has the fixed block on the lift lead screw, coaxial cover is equipped with the buffer spring who is located the fixed block top on the lift lead screw, fixed mounting has the slide bar on the experimental box, coaxial upper and lower slidable mounting has the sliding block on the slide bar, the opposite side of loading board is rotated and is installed on the sliding block.

Preferably, threaded mounting has the belt cleaning device who is located the experimental box on the elevating gear, belt cleaning device includes the lifter plate of threaded mounting on elevating gear, the other end fixed mounting of lifter plate has the fixed disk, the periphery of fixed disk is even fixed mounting respectively has a plurality of dead levers, every the upper end of dead lever is rotated respectively and is installed the clearance brush that corresponds with every experimental tube.

Preferably, the fixed disk is provided with a lower bevel gear in a rotating manner, each rotating column is connected between the cleaning brush and the lower bevel gear in a meshing manner, the bottom of the fixed disk is provided with a lower motor coaxial with the lower bevel gear, and a telescopic rod is connected between the lifting plate and the experimental box.

Preferably, the inside bottom of experimental box installs the hourglass storehouse that is located motor below down, the stoving storehouse is installed to the inboard of experimental box, evenly install a plurality of stoving heads on the inner wall in stoving storehouse, coaxial fixed mounting has the rolling disc that is located the experimental box top on the lift lead screw.

The invention has the beneficial effects that:

when the device is used, the experiment tube can be clamped through the mutual matching use between the clamping device and the protection plate, the sliding phenomenon is prevented when the device is used, and meanwhile, the liquid or particles in the experiment tube can be uniformly shaken through the matching use between the rotating ball and the sliding box, so that the device is more labor-saving and more convenient compared with the traditional manual shaking; the loading plate can be turned over by matching the lifting device with the half gear and the cleaning device, so that the experiment tube can be cleaned, and the influence of impurities remained in the experiment tube on next use is prevented.

Drawings

Fig. 1 is a perspective view of the present invention.

FIG. 2 is a schematic view of a carrier plate according to the present invention.

FIG. 3 is an enlarged view of the invention at A.

Fig. 4 is a first developed view of the clamping device of the present invention.

Fig. 5 is a second developed view of the clamping device of the present invention.

Fig. 6 is a schematic view of the inventive toothed ring.

FIG. 7 is an enlarged view of the invention at B.

FIG. 8 is a schematic view of a drive gear of the present invention.

FIG. 9 is an enlarged view of the invention at C.

FIG. 10 is a schematic view of the lower bevel gear of the present invention.

FIG. 11 is a schematic view of a cleaning apparatus according to the present invention.

FIG. 12 is an enlarged view of the invention at D.

FIG. 13 is an enlarged view of the invention at E.

FIG. 14 is a schematic diagram of a power up motor according to the present invention.

Detailed Description

The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 14. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment of the invention provides an educational technology auxiliary teaching device, which comprises an experiment box 1, wherein the experiment box 1 is in a cylindrical shape, the experiment box 1 can be made of a transparent material, a circular hole is formed in the upper end face of the experiment box 1, a bearing plate 2 is vertically and slidably mounted in the experiment box 1, the bearing plate 2 vertically slides in the experiment box 1, the upper end of the bearing plate 2 is flush with the upper end of the circular hole, a support column 3 is fixedly mounted at the center of the bearing plate 2, a thread is formed in the upper end of the support column 3, a sliding disc 4 positioned at the lower end of the thread is coaxially sleeved on the support column 3, the sliding disc 4 can vertically slide on the support column 3, a first pressure spring 5 positioned between the bearing plate 2 and the sliding disc 4 is coaxially sleeved on the support column 3, the model of the first pressure spring 5 is properly selected according to use, and the sliding disc 4 can press the first, clamping devices are uniformly arranged on the circumference of the bearing plate 2 respectively, an experiment tube 6 is arranged on each clamping device respectively, the experiment tubes 6 are used for containing experiment liquid or particles when in use, each clamping device can clamp the corresponding experiment tube 6 respectively, an interlocking rod (7) is hinged between each clamping device and the sliding disc 4 respectively, and a nut 8 positioned above the sliding disc 4 is coaxially arranged on the supporting body 3 in a threaded manner;

when the device is used, the nut 8 is manually screwed, the nut 8 presses the sliding disc 4 to slide downwards, the sliding disc 4 presses the first pressure spring 5 to slide downwards, meanwhile, the sliding disc 4 pushes the corresponding clamping devices to open through the linkage rods 7 respectively, each experimental tube 6 is placed into the corresponding clamping device, the nut 8 is screwed in the opposite direction, the counter-elastic force of the first pressure spring 5 pushes the sliding disc 4 to slide upwards, the sliding disc 4 clamps the experimental tubes 6 by carrying out folding and closing of the corresponding clamping devices through the linkage rods 7, the experimental tubes 6 with different diameters can be clamped by opening and closing of the clamping devices, and the models of the experimental tubes 6 with different diameters are met;

the clamping device comprises supporting plates 9 which are respectively and fixedly arranged on the bearing plate 2, the upper end of each supporting plate 9 is respectively and fixedly provided with a right clamping plate 10 positioned on one side of the experimental tube 6, the front end and the rear end of the upper surface of each right clamping plate 10 are respectively provided with a right inclined groove and the right end of the upper surface of each right clamping plate 10 are respectively provided with a right transverse groove, the left end of each right clamping plate 10 is respectively and slidably provided with a left clamping plate 11 positioned on the other side of the experimental tube 6, the front end and the rear end of the upper surface of each left clamping plate 11 are respectively provided with a left inclined groove and the right end of the upper surface of each left clamping plate 11 are respectively provided with a left transverse groove, when in use, the corresponding experimental tube 6 can be clamped through the interaction force between each right clamping plate 10 and each left clamping plate 11, and the loosening phenomenon of the experimental tube 6 is prevented, a first V-shaped plate 12 is respectively installed in a right transverse groove of the upper end face of each right clamping plate 10 in a left-right sliding mode, a second V-shaped plate 13 connected with one end of the first V-shaped plate 12 in a sliding mode is respectively installed in a right inclined groove of the rear end of each right clamping plate 10 in a right sliding mode, the first V-shaped plate 12 can be respectively driven by each second V-shaped plate 13 to slide back and forth in a left-right sliding mode, a third V-shaped plate 14 connected with the other end of the first V-shaped plate 12 in a sliding mode is respectively installed in a right inclined groove of the front end of each right clamping plate 10 in a right sliding mode, and the third V-shaped plate 14 can be respectively driven by each first V-shaped plate 12 to;

a fourth V-shaped plate 15 is respectively arranged in a left transverse groove of the upper end surface of each left clamping plate 11 in a left sliding mode, a fifth V-shaped plate 16 connected with one end of the fourth V-shaped plate 15 in a sliding mode is respectively arranged in a left inclined groove at the rear end of each left clamping plate 11 in a left sliding mode, each fifth V-shaped plate 16 can respectively drive the fourth V-shaped plate 15 to slide back and forth in a left sliding mode, a sixth V-shaped plate 17 connected with one end of the fifth V-shaped plate 16 in a sliding mode is respectively arranged in a left inclined groove at the front end of each left clamping plate 11 in a sliding mode, each fourth V-shaped plate 15 can respectively drive the sixth V-shaped plate 17 to slide back and forth in a left sliding mode, the other end of each second V-shaped plate 13 is connected with the other end of the fifth V-shaped plate 16 in a sliding mode, the other end of each third V-shaped plate 14 is connected with the other end of the sixth V-shaped plate 17 in a, the other end of each linkage rod 7 is respectively hinged on a sliding block 19;

when in use, the nut 8 is manually screwed, the nut 8 presses the sliding disc 4 to slide downwards, the sliding disc 4 presses the first pressure spring 5 to slide downwards, meanwhile, the sliding disc 4 pushes the corresponding sliding block 19 to slide forwards through a plurality of linkage rods 7, each sliding block 19 respectively carries the second V-shaped plate 13 and the fifth V-shaped plate 16 to slide mutually, at the moment, each left clamping plate 11 and the right clamping plate 10 are gradually separated, at the moment, the experiment tube 6 can be placed between the left clamping plate 11 and the right clamping plate 10, at the moment, the nut 8 is screwed in the opposite direction, at the moment, the sliding disc 4 slides upwards against the sliding disc 4 due to the counter-elastic force of the first pressure spring 5, the sliding disc 4 respectively synchronously pulls the sliding block 19 to slide backwards through the plurality of linkage rods 7, each sliding block 19 respectively carries the second V-shaped plate 13 and the fifth V-shaped plate 16 corresponding to each sliding block 19 to slide mutually, at the moment, each left clamping plate 11 and the right clamping plate 10 are gradually folded to clamp the experiment tube, the experiment tubes 6 with different diameters can be clamped by opening and closing the clamping device, so that the models of the experiment tubes with different diameters are met, and the stability of the experiment tubes 6 is better facilitated;

every the left surface of right grip block 10 and every the right flank of left grip block 11 is ball-connected with rolling ball 20 respectively, every relative terminal surface difference fixedly connected with of rolling ball 20 hugs closely the elastic plate 21 of experiment pipe 6, elastic plate 21 optionally is the rubber slab, passes through rolling ball 20's rotation respectively when using, can rock every experiment pipe 6 respectively, every right grip block 10 and rather than corresponding elastic plate 21 between be connected right buffer spring, every left grip block 11 right side terminal surface and every right grip block 10 and rather than corresponding elastic plate 21 between be connected buffer spring, through buffer spring effort when using, can prevent that the effort between right grip block 10 and the left grip block 11 from pressing from both sides the transition of experiment pipe 6 tightly.

In the second embodiment, on the basis of the first embodiment, the supporting member 3 is coaxially rotatably installed with a toothed ring 22 located on the supporting plate 2, the supporting plate 2 is respectively rotatably installed with a plurality of driving gears 23 engaged with the inner teeth of the toothed ring 22, the toothed ring 22 is rotated to synchronously drive the plurality of driving gears 23 to rotate, the supporting plate 2 is respectively and uniformly slidably installed with a plurality of push rods 24, each push rod 24 is rotatably connected with a rotating rod 25 between the driving gear 23, each driving gear 23 is provided with a rotating hole located on one side of the center of the driving gear 23, one end of each rotating rod 25 is rotatably installed in the rotating hole, the other end of each rotating rod 25 is rotatably installed at one end of the push rod 24, when in use, each driving gear 23 is rotated to respectively push the corresponding push rod 24 through the corresponding rotating rod 25 to slide on the supporting plate 2, the bearing plate 2 is respectively and evenly distributed on the circumference and is provided with a plurality of sliding boxes 26 which are positioned at one end of each push rod 24 in a sliding way, each experiment tube 6 is respectively placed in the sliding boxes 26, each push rod 24 can respectively push each sliding box 26 to slide back and forth, and each sliding box 26 can respectively carry the corresponding experiment tube 6 to slide back and forth.

In the third embodiment, on the basis of the second embodiment, a second pressure spring 27 is fixedly installed in each sliding box 26, the model of the second compression springs 27 is selected according to the use, one end of each second compression spring 27 is fixedly connected with a guard plate 28 positioned on the front side of the experiment tube 6, a third compression spring 29 is arranged between the front end of each sliding box 26 and the rotating disc 4, the model of the third compression spring 29 is selected according to the use, in use, each of said push rods 24 slides back and forth pushing against a corresponding slide box 26, each of said slide boxes 26 swinging back and forth with the bottom of a corresponding tube 6, the corresponding liquid or particles in the experiment tube 6 are shaken up, which is more labor-saving compared with the traditional manual shaking up, meanwhile, the danger is reduced, when each push rod 24 slides backwards, each third compression spring 29 slides backwards against the corresponding sliding box 26;

one end of each guard plate 28 is fixedly connected with a sliding rod 30, the bottom of each left clamping plate 11 is fixedly connected with a vertical plate 31 which is in contact with the other end of the sliding rod 30, the front end of each vertical plate 31 is provided with an inclined surface, the other end of each sliding rod 30 is in contact with the inclined surface, an upper motor 32 which is meshed with the outer teeth of the toothed ring 22 is mounted on the bearing plate 2, an upper motor gear which is meshed with the outer teeth of the toothed ring 22 is fixedly mounted on a rotating shaft of the upper motor 32, the upper motor 32 is connected with a control device, the control device is connected with a power supply, a waterproof layer is arranged on the upper motor 32, and when the device is used, the proper upper motor model is selected according to needs;

when the experiment tube 6 is put in, each left clamping plate 11 synchronously and respectively carries the corresponding vertical plate 31 to slide rightwards, and each protection plate 28 restores to the corresponding state due to the acting force of the third compression spring 29.

In the fourth embodiment, on the basis of the first embodiment, a lifting device is rotatably mounted on the test box 1, the bearing plate 2 is mounted on the lifting device, the lifting device can drive the bearing plate 2 to move up and down, the lifting device comprises a lifting screw 41 mounted between the bearing plate 2 and the lifting plate 33, the threads at the two ends of the lifting screw 41 are opposite, a threaded plate 42 is mounted on the lifting screw 41 in a threaded manner, a limit rod 53 is fixedly mounted at the front side of the threaded plate 42, one side of the bearing plate 2 is rotatably mounted on the threaded plate 42, a fixing rod is fixedly mounted at the right side of the bearing plate 2, the fixing rod is rotatably mounted on the threaded plate 42, a half gear 43 is mounted between the bearing plate 2 and the threaded plate 42, a half gear 43 located at one side of the limit rod 53 is coaxially and fixedly mounted on the fixing rod, a rack plate 44 located in the test box 1 and meshed with the half gear 43 is fixedly mounted on the bearing, a rack meshed with the semi-gear 43 is installed below the rack plate 44, a fixed block 45 is coaxially and fixedly installed on the lifting screw rod 41, a compression spring 46 positioned above the fixed block 45 is coaxially sleeved on the lifting screw rod 41, the compression spring 46 is sleeved at the position of the lifting screw rod 41 and is a smooth surface, a clamping rod positioned on one side of the compression spring 46 is installed on the experiment box 1 in a sliding manner, two ends of the compression spring 46 are respectively and fixedly provided with a circular ring sleeved on the lifting screw rod 41, a sliding rod 47 is fixedly installed on the experiment box 1, the length of the sliding rod 47 is equal to that of the lifting screw rod 41, a sliding block 48 is coaxially installed on the sliding rod 47 in a sliding manner up and down, and the other side of the bearing plate 2 is rotatably installed on the sliding;

after each experiment tube 6 finishes the experiment, the lifting screw rod 41 is manually rotated, at the moment, the bearing plate 2 descends along the lifting screw rod, the lifting plate 33 ascends along the lifting screw rod 41, when the half gear 43 contacts the rack on the rack plate 44, the half gear 43 synchronously drives the fixed rod to rotate along the rack, the bearing plate 2 synchronously rotates along with the fixed rod, the experiment box 1 does not hinder the turnover of the bearing plate 2, each experiment tube 6 and the support column 3, when one end of the half gear 43 contacts the limiting rod 53, the rotation stops, the bearing plate 2 just turns over to 180 degrees, at the moment, each experiment tube 6 corresponds to the cleaning brush 36 one by one, the thread plate 42 contacts the upper end face of the compression spring 46, when the lifting screw rod 41 continues to rotate, the thread plate 42 is tightly attached to the compression spring 46, at the moment, the clamping rod is manually clamped at the upper end of the compression spring 46 to prevent the compression spring, at this time, the lifting plate 33 continues to rise to a certain height, and stops until each cleaning brush 36 completely enters the corresponding test tube 6.

Fifth embodiment, on the basis of the fourth embodiment, a cleaning device located in the experimental box 1 is installed on the lifting device through a thread, the cleaning device is located below the bearing plate 2 and installed in the experimental box 1, a water storage tank is arranged in the experimental box 1, the water storage tank is connected with a water pump, the water pump is connected with a control device, the control device is connected with a power supply, the water pump selects an appropriate model according to use, the cleaning device comprises a lifting plate 33 installed on the lifting device through a thread, a fixed plate 34 is fixedly installed at the other end of the lifting plate 33, a plurality of fixed rods 35 are respectively and uniformly and fixedly installed on the circumferential end face of the fixed plate 34, a cleaning brush 36 corresponding to each experimental tube 6 is respectively and rotatably installed at the outer end of each fixed rod 35, each cleaning brush 36 can respectively wash the corresponding experimental tube 6, and the inside of each cleaning brush 36 is respectively of a cavity structure, and every the apopore has been seted up respectively to the outside of the central roller of clearance brush 36, every the axis of rotation is installed respectively to the bottom of clearance brush 36, every the axis of rotation is fixed mounting respectively has the water pipe, every the water pump is connected respectively to the water pipe.

In the sixth embodiment, on the basis of the fifth embodiment, the fixed disk 34 is rotatably provided with a lower bevel gear 37,

a rotating column 38 is engaged and connected between each cleaning brush 36 and the lower bevel gear 37, the bottom of each cleaning brush 36 is fixedly connected with a brush bevel gear, two ends of each rotating column 38 are fixedly connected with rotating column bevel gears, one end of each rotating column 38 is engaged and connected with the lower bevel gear 37 through the corresponding rotating column bevel gear, the other end of each rotating column 38 is engaged and connected with the brush bevel gear through the corresponding rotating column bevel gear, the bottom of the fixed disk 34 is fixedly provided with a lower motor 39 coaxial with the lower bevel gear 37, the lower motor 39 is connected with a control device, the control device is connected with a power supply, a proper model is selected according to requirements when in use, the lower motor 39 is provided with a waterproof device, the lower motor 39 and a water pump are started when in use, the lower motor 39 synchronously drives the corresponding cleaning brushes 36 to rotate in the experiment tube 6, meanwhile, a water pump injects water into the central roller of each cleaning brush 36 through a water pipe, the water is used for cleaning the inner wall of each experiment tube 6 through a water outlet, the cleaned sewage flows into a corresponding recovery device, each experiment tube 6 can be cleaned through the operation, the manpower is saved correspondingly, an expansion rod 40 is connected between the lifting rod 33 and the experiment box 1, the expansion rod 40 selects a proper model according to the use, the motor 39 drives the lower bevel gear 37 to rotate when the expansion rod 40 is used, the lower bevel gear 37 drives the corresponding rotating rods 38 to rotate respectively, each rotating rod 38 drives the cleaning brush 36 to rotate respectively, each cleaning brush 36 can wash the corresponding experiment tube 6, and the inside of the experiment tube 6 can be cleaned through the operation.

Seventh embodiment, on the basis of the sixth embodiment, a water leakage bin 49 located below the cleaning device is installed at the bottom of the inner side of the experiment box 1, the cleaned sewage flows into the water leakage bin 49, a drying bin 50 is installed at the inner side of the experiment box 1, the drying bin 50 is connected with a dryer, the dryer is connected with a control device, the control device is connected with a power supply, a plurality of drying heads 51 are uniformly installed on the inner wall of the drying bin 50, a rotating disc 52 located above the experiment box 1 is coaxially and fixedly installed on the lifting screw 41, and the lifting screw 41 can be driven to rotate manually through the rotating disc 52;

after each experiment tube 6 is cleaned, the water pump and the lower motor 39 are turned off, the rotating disc 52 is pushed in the opposite direction, the threaded plate 42 is kept still, the lifting plate 33 slides downwards, after each cleaning brush 36 comes out of the corresponding experiment tube 6, the rotating disc 52 is stopped rotating, and the dryer is started to blow hot air into the experiment box 1 until each experiment tube 6 is dried and then stopped;

at this time, the clamping rod is manually moved away, the rebounding force of the compression spring 46 is propped against the bottom surface of the threaded plate 42, the rotating disc 52 is continuously pushed, the lifting screw rod 41 synchronously drives the lifting rod 33 and the threaded plate 42 to be continuously separated, when the half gear 43 is meshed with the rack on the rack plate 44, the bearing plate 2 just turns over to 180 degrees, meanwhile, the other end of the half gear 43 stops rotating when being contacted with the limiting rod 53, and at this time, the lifting screw rod continuously drives the threaded plate 42 and the lifting rod 33 to recover to proper positions and then stops, and each experimental tube 6 can be dried through the operation, so that the next use is facilitated.

The invention has the beneficial effects that:

Claims

1. The utility model provides an educational technology auxiliary teaching device, includes experimental box (1), its characterized in that: the test box is characterized in that a bearing plate (2) is vertically and slidably mounted in the test box (1), a support column (3) is fixedly mounted at the center of the bearing plate (2), a sliding disc (4) is coaxially sleeved on the support column (3), a first pressure spring (5) positioned between the bearing plate (2) and the sliding disc (4) is coaxially sleeved on the support column (3), clamping devices are uniformly mounted on the circumference of the bearing plate (2) respectively, an experiment tube (6) is placed on each clamping device respectively, a linkage rod (7) is hinged between each clamping device and the sliding disc (4) respectively, and a nut (8) positioned above the sliding disc (4) is mounted on the supporting plate (3) through coaxial threads;

the clamping device comprises supporting plates (9) fixedly mounted on a bearing plate (2) respectively, the upper end of each supporting plate (9) is fixedly provided with a right clamping plate (10) located on one side of an experiment tube (6) respectively, the left end of each right clamping plate (10) is slidably provided with a left clamping plate (11) located on the other side of the experiment tube (6) respectively, the upper end face of each right clamping plate (10) is slidably provided with a first V-shaped plate (12) respectively, the front end of each right clamping plate (10) is slidably provided with a second V-shaped plate (13) slidably connected with one end of the first V-shaped plate (12) respectively, and the rear end of each right clamping plate (10) is slidably provided with a third V-shaped plate (14) slidably connected with the other end of the first V-shaped plate (12) respectively;

every there is fourth V template (15) sliding mounting respectively to left side grip block (11) up end, every the front end of left side grip block (11) sliding mounting respectively have with fourth V template (15) one end sliding connection's fifth V template (16), every the front end of left side grip block (11) sliding mounting respectively have with fifth V template (16) one end sliding connection's sixth V template (17), every the second V template (13) other end and the other end sliding connection of fifth V template (16), every the other end and the sixth V template (17) other end sliding connection of third V template (14), every second V template (13) and fifth V template (16) junction cover are equipped with sliding block (19), every the other end of trace (7) articulates respectively on sliding block (19), every the left side and every of right side grip block (10) the right side of left side grip block (11) are connected with ball (20) One end face of each rotating ball (20) is fixedly connected with an elastic plate (21) located on the side face of the experiment tube (6).

2. An educational-technical support teaching apparatus according to claim 1, wherein: support (3) coaxial rotation and install ring gear (22) that are located on loading board (2), rotate respectively on loading board (2) and install a plurality of driving gear (23) with ring gear (22) internal toothing, even slidable mounting respectively has a plurality of push rods (24), every on loading board (2) rotate between push rod (24) and driving gear (23) and be connected with dwang (25), even circumference distributes respectively on loading board (2) and slidable mounting has and is located every a plurality of sliding box (26) of stating push rod (24) one end, and every experiment pipe (6) are placed respectively at sliding box (26).

3. An educational-technical support teaching apparatus according to claim 2, wherein: every there is second pressure spring (27), every in the box that slides (26) fixed mounting respectively the one end difference fixedly connected with of second pressure spring (27) is located backplate (28) of experiment pipe (6) front side, every install third pressure spring (29) between front end of box that slides (26) and rolling disc (4) respectively, every fixedly connected with slide bar (30), every respectively the one end of backplate (28) the riser (31) of bottom difference fixedly connected with and the contact of slide bar (30) other end of left side grip block (11), install last motor (32) with the external tooth meshing of ring gear (22) on loading board (2).

4. An educational-technical support teaching apparatus according to claim 1, wherein: the utility model discloses a lifting device for a bearing plate, including experimental box (1), loading board (2) and lifting plate (33), lifting device includes that the screw thread installs lifting screw (41) between loading board (2) and lifting plate (33), screw thread installation screw thread board (42) are gone up in lifting screw (41), one side of loading board (2) is rotated and is installed on screw thread board (42), install half gear (43) between loading board (2) and screw thread board (42), fixed mounting is gone up in loading board (2) have be located experimental box (1) and with rack plate (44) of half gear (43) meshing, coaxial fixed mounting has fixed block (45) on lifting screw (41), coaxial cover is equipped with buffer spring (46) that are located fixed block (45) top on lifting screw (41), fixed mounting has slide bar (47) on experimental box (1), the sliding rod (47) is coaxially provided with a sliding block (48) in a vertical sliding mode, and the other side of the bearing plate (2) is rotatably arranged on the sliding block (48).

5. An educational technology assisting teaching apparatus according to claim 4, wherein: the threaded belt cleaning device who is located experimental box (1) of installing on elevating gear, belt cleaning device includes that threaded belt installs lifter plate (33) on elevating gear, the other end fixed mounting of lifter plate (33) has fixed disk (34), the periphery of fixed disk (34) is even fixed mounting respectively has a plurality of dead levers (35), every the upper end of dead lever (35) is rotated respectively and is installed cleaning brush (36) that correspond with every experiment pipe 6.

6. An educational technology assisting teaching apparatus according to claim 5, wherein: fixed disk (34) are gone up to rotate and are installed down bevel gear (37), every the meshing is connected with between clearance brush (36) and lower bevel gear (37) and rotates post (38), the bottom of fixed disk (34) is installed and is connected telescopic link (40) with lower bevel gear (37) coaxial lower motor (39), be connected between lifter plate (33) and experimental box (1).

7. An educational technology assisting teaching apparatus according to claim 6, wherein: the inside bottom of experimental box (1) is installed and is located hourglass sump (49) of motor (39) below down, stoving storehouse (50) are installed to the inboard of experimental box (1), evenly install a plurality of stoving heads (51) on the inner wall in stoving storehouse (50), coaxial fixed mounting has rolling disc (52) that are located experimental box (1) top on lift lead screw (41).