CN108855515A

CN108855515A - A kind of junior school student's chemistry teaching apparatus

Info

Publication number: CN108855515A
Application number: CN201810534544.4A
Authority: CN
Inventors: 卢晓鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2018-11-23

Abstract

The invention discloses a kind of junior school student chemistry teaching apparatus, including long tube and grinding case, bottom on the right side of the long tube is fixedly connected with grinding case, top on the right side of the long tube offers slide opening, the bottom of the long tube cavity is connected with threaded rod by bearing, and the lower end of threaded rod is arranged with the first helical gear.The present invention passes through setting grinding case, grinding groove, motor and abrasive disk, play the effect ground to Solid-state Chemistry drug, by the way that thread bush is arranged, play the effect for driving case lid lifting, by the way that threaded rod is arranged, play the effect for driving thread bush lifting, pass through the first helical gear of setting and the second helical gear, play the effect for driving threaded rod rotation, solving could test after needing to grind some Solid-state Chemistry experimental drugs in experiment, usually used grinding alms bowl needs hand-ground, grinding efficiency is not high, chemicals can splash out when grinding, the problem of student is damaged.

Description

A kind of junior school student's chemistry teaching apparatus

Technical field

The present invention relates to teaching aid technical field, specially a kind of junior school student chemistry teaching apparatus.

Background technique

Teaching aid refers to the model for explaining illustration something or other, material object, sample, instrument, chart, magic lantern etc., including religion Equipment, instruments used for education, Practical training equipment, educational equipment, experimental facilities, teaching specimen, teaching mode etc. are learned, teaching aid is to propagate section The material object of skill, the artificial target of education, is complete sci-tech mass media, is indispensable equipment in teenager's scientific and technological activities, chemistry Teaching can be shown by way of experiment to student often, need to grind some Solid-state Chemistry experimental drugs in experiment After could test, usually used grinding alms bowl needs hand-ground, and grinding efficiency is not high, and chemicals can splash out when grinding, right Student damages, for this purpose, it is proposed that carrying out a kind of junior school student's chemistry teaching apparatus.

Summary of the invention

The purpose of the present invention is to provide a kind of junior school student chemistry teaching apparatus, and having grinding efficiency height prevents chemical drugs The advantages of product splash, solving could test after needing to grind some Solid-state Chemistry experimental drugs in experiment, usually The grinding alms bowl used needs hand-ground, and grinding efficiency is not high, and chemicals can splash out when grinding, asks what student damaged Topic.

To achieve the above object, the present invention provides the following technical solutions：A kind of junior school student is with chemistry teaching apparatus, including length Case is managed and grinds, the bottom on the right side of the long tube is fixedly connected with grinding case, and the top on the right side of the long tube offers slide opening, institute The bottom for stating long tube cavity is connected with threaded rod by bearing, and the lower end of the threaded rod is arranged with the first helical gear, institute It states the first helical gear left side engagement and is connected with the second helical gear, the second helical gear left side is fixedly connected with bull stick, institute Bull stick is stated far from the second helical gear side through long tube, and extends to the outside of long tube, the surface of the threaded rod is arranged with Thread bush extends the outside of slide opening on the right side of the thread bush and is fixedly connected with case lid, and the top of the case lid inner cavity is logical It crosses fixed frame and is fixedly installed with motor, the output shaft of the motor runs through case lid and extends to the outside of case lid, and is fixedly connected There is abrasive disk, the two sides of the grinding box cavity bottom are fixedly connected to electric telescopic rod, the top of the electric telescopic rod It is fixedly connected with grinding groove, the abrasive disk is located at the inner cavity of grinding groove.

Preferably, the bull stick is arranged with Anti-slip cover, the surface setting of the Anti-slip cover far from the second helical gear side There is anti-skid chequer.

Preferably, the two sides of the grinding box cavity offer sliding slot, and the inner cavity of the sliding slot slidably connects sliding block, The sliding block is fixedly connected far from the side of sliding slot inner cavity with grinding groove.

Preferably, the surface of the grinding case offers observation window, on the right side of the bottom on the right side of the case lid and grinding case Top is flexibly connected by buckle.

Compared with prior art, beneficial effects of the present invention are as follows：

1, the present invention is by setting grinding case, grinding groove, motor and abrasive disk, plays and is ground to Solid-state Chemistry drug Effect plays the effect for driving case lid lifting, by the way that threaded rod is arranged, plays and drive thread bush liter by the way that thread bush is arranged The effect of drop is played the effect for driving threaded rod rotation, is solved in reality by the first helical gear of setting and the second helical gear It needs to test after grinding some Solid-state Chemistry experimental drugs when testing, usually used grinding alms bowl needs are ground manually The problem of mill, grinding efficiency is not high, and chemicals can be splashed out, be damaged to student when grinding.

2, the present invention plays by setting Anti-slip cover and anti-skid chequer and increases frictional force between palm and bull stick, avoid sending out It is raw to be in the presence of that palm slippage plays by setting sliding slot and sliding block and stablizes support to grinding groove when rotating bull stick Effect is played by the way that observation window is arranged convenient for the effect of observation grinding situation.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is observation window structural schematic diagram of the present invention.

In figure：1 long tube, 2 grinding casees, 3 slide openings, 4 threaded rods, 5 first helical gears, 6 second helical gears, 7 bull sticks, 8 screw threads Set, 9 case lids, 10 motors, 11 abrasive disks, 12 electric telescopic rods, 13 grinding grooves, 14 Anti-slip covers, 15 sliding slots, 16 sliding blocks, 17 observations Window.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

A kind of junior school student chemistry teaching apparatus referring to FIG. 1-2, including long tube 1 and grinding case 2, the bottom on 1 right side of long tube Portion is fixedly connected with grinding case 2, and the surface of grinding case 2 offers observation window 17, by the way that observation window 17 is arranged, is played convenient for seeing The effect of grinding situation is examined, the top on 1 right side of long tube offers slide opening 3, and the bottom of 1 inner cavity of long tube is connected with by bearing Threaded rod 4, the lower end of threaded rod 4 are arranged with the first helical gear 5, and the left side engagement of the first helical gear 5 is connected with the second helical gear 6, the left side of the second helical gear 6 is fixedly connected with bull stick 7, and bull stick 7 runs through long tube 1 far from the side of the second helical gear 6, and extends To the outside of long tube 1, bull stick 7 is arranged with Anti-slip cover 14 far from the side of the second helical gear 6, and the surface of Anti-slip cover 14 is provided with anti- Sliding line plays by setting Anti-slip cover 14 and anti-skid chequer and increases frictional force between palm and bull stick 7, avoids occurring rotating It is in the presence of that palm slips when bull stick 7, the surface of threaded rod 4 is arranged with thread bush 8, and slide opening 3 is extended on the right side of thread bush 8 Outside and be fixedly connected with case lid 9, the top of 9 inner cavity of case lid is fixedly installed with motor 10 by fixed frame, motor 10 it is defeated Shaft runs through case lid 9 and extends to the outside of case lid 9, and is fixedly connected with abrasive disk 11, and the two sides for grinding 2 intracavity bottom of case are equal It is fixedly connected with electric telescopic rod 12, the top of electric telescopic rod 12 is fixedly connected with grinding groove 13, grinds the two sides of 2 inner cavity of case Sliding slot 15 is offered, the inner cavity of sliding slot 15 slidably connects sliding block 16, side and grinding of the sliding block 16 far from 15 inner cavity of sliding slot Slot 13 is fixedly connected, and by setting sliding slot 15 and sliding block 16, plays the effect for stablizing support to grinding groove 13, and abrasive disk 11 It is played by setting grinding case 2, grinding groove 13, motor 10 and abrasive disk 11 to Solid-state Chemistry medicine in the inner cavity of grinding groove 13 The effect that product are ground plays the effect for driving case lid 9 to go up and down, by the way that threaded rod 4 is arranged, rises by the way that thread bush 8 is arranged To the effect for driving thread bush 8 to go up and down, by the first helical gear 5 of setting and the second helical gear 6, plays and threaded rod 4 is driven to revolve The effect turned, solving could test after needing to grind some Solid-state Chemistry experimental drugs in experiment, usually used Grinding alms bowl need hand-ground, the problem of grinding efficiency is not high, and chemicals can be splashed out, be damaged to student when grinding.

In use, rotation bull stick 7, bull stick 7 drives the rotation of the first helical gear 5, and the first helical gear 5 is matched with the second helical gear 6 It closing, threaded rod 4 is driven to rotate, while threaded rod 4 rotates, thread bush 8 is steadily gone up and down in the inner cavity of slide opening 3, and 8 liters of thread bush Case lid 9 is driven to go up and down while drop, case lid 9 drives motor 10 and abrasive disk 11 to go up and down, and then grinds the placement of Solid-state Chemistry drug In slot grinding 13, reversion bull stick 7 make case lid 9 be decreased until with grinding case 2 be completely coincident, starting motor 10, the output shaft of motor 10 Abrasive disk 11 is driven to rotate, after abrasive disk 11 grinds Solid-state Chemistry medicine in the inner cavity of grinding groove 13 completely, by case lid 9 It rises, starts electric telescopic rod 12, grinding groove 13 can be lifted out together grinding together with ground drug by electric telescopic rod 12 Case 2, convenient for the extraction to drug after grinding.

In summary：Junior school student chemistry teaching apparatus passes through long tube 1, grinding case 2, slide opening 3, threaded rod 4, first Helical gear 5, the second helical gear 6, bull stick 7, thread bush 8, case lid 9, motor 10, abrasive disk 11, electric telescopic rod 12 and grinding groove 13 cooperation, solving could test after needing to grind some Solid-state Chemistry experimental drugs in experiment, usually used Grinding alms bowl need hand-ground, the problem of grinding efficiency is not high, and chemicals can be splashed out, be damaged to student when grinding.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of junior school student is with chemistry teaching apparatus, including long tube（1）With grinding case（2）, it is characterised in that：The long tube（1） The bottom on right side and grinding case（2）It is fixedly connected, the long tube（1）Slide opening is offered at the top of right side（3）, the long tube（1） The bottom of inner cavity is connected with threaded rod by bearing（4）, the threaded rod（4）Lower end be arranged with the first helical gear（5）, First helical gear（5）Left side engagement be connected with the second helical gear（6）, second helical gear（6）Left side fixed connect It is connected to bull stick（7）, the bull stick（7）Far from the second helical gear（6）Side run through long tube（1）, and extend to long tube（1）It is outer Portion, the threaded rod（4）Surface be arranged with thread bush（8）, the thread bush（8）Right side extend slide opening（3）Outside And it is fixedly connected with case lid（9）, the case lid（9）The top of inner cavity is fixedly installed with motor by fixed frame（10）, the electricity Machine（10）Output shaft run through case lid（9）And extend to case lid（9）Outside, and be fixedly connected with abrasive disk（11）, described to grind Tumbling barrel（2）The two sides of intracavity bottom are fixedly connected to electric telescopic rod（12）, the electric telescopic rod（12）Top fix It is connected with grinding groove（13）, the abrasive disk（11）Positioned at grinding groove（13）Inner cavity.

2. a kind of junior school student according to claim 1 chemistry teaching apparatus, it is characterised in that：The bull stick（7）It is separate Second helical gear（6）Side be arranged with Anti-slip cover（14）, the Anti-slip cover（14）Surface be provided with anti-skid chequer.

3. a kind of junior school student according to claim 1 chemistry teaching apparatus, it is characterised in that：The grinding case（2）It is interior The two sides of chamber offer sliding slot（15）, the sliding slot（15）Inner cavity slidably connect sliding block（16）, the sliding block（16）Far From sliding slot（15）The side of inner cavity and grinding groove（13）It is fixedly connected.

4. a kind of junior school student according to claim 1 chemistry teaching apparatus, it is characterised in that：The grinding case（2）'s Surface offers observation window（17）, the case lid（9）The bottom on right side and grinding case（2）The top on right side is connected by buckle activity It connects.