CN214394275U

CN214394275U - Protective chemical experiment teaching aid for middle school

Info

Publication number: CN214394275U
Application number: CN202120464567.XU
Authority: CN
Inventors: 范洁慧; 陈静; 姬保卫
Original assignee: Huaiyin Normal University
Current assignee: Huaiyin Normal University
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-10-15
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses a middle school is with protection formula chemistry experiment teaching aid, the on-line screen storage device comprises a base, the top of base is rotated and is connected with the carousel, bolt fixedly connected with base plate is passed through at the top of carousel, the gag lever post has been run through at the top of base plate, the transparent protection casing of bolt fixedly connected with is passed through at the top of base plate, the top of transparent protection casing is rotated through the hinge and is connected with the shroud, the cross slot has been seted up to one side position department of transparent protection casing, sliding connection has the slide on one side inner wall of cross slot. This middle school is with protection formula chemistry experiment teaching aid, through mutually supporting of transparent protection casing and rubber gloves, through the slip of slide on the cross slot, first elastic stretching layer and second elastic stretching layer compress and draw under the pressurized, and then realize sheltering from the cross slot, improve the protectiveness of transparent protection casing, avoid the problem that liquid medicine sputtering in the experiment teaching aid caused personnel's injury, also can effectually carry out better protection to the front-seat student.

Description

Protective chemical experiment teaching aid for middle school

Technical Field

The utility model relates to a teaching aid technical field specifically is a middle school is with protection formula chemistry experiment teaching aid.

Background

The teaching aid refers to a model, a real object, a specimen, an instrument, a chart, a slide show and the like for explaining something, and comprises teaching equipment, a teaching instrument, practical training equipment, education equipment, experimental equipment, a teaching specimen, a teaching model and the like.

However, the most directness of current chemistry experiment teaching aid is placed on the experiment table, and when teaching experiment like this, some are sputtered easily or have the experiment that the hazardous substances produced just produces certain harm to teacher or student easily, and current chemistry experiment teaching aid lacks effectual protection, is not convenient for carry out abundant protection to teacher and student.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a middle school is with protection formula chemistry experiment teaching aid to it lacks effectual protection to provide current chemistry experiment teaching aid in solving above-mentioned background art, is not convenient for carry out the problem of abundant protection to teacher and student.

In order to achieve the above object, the utility model provides a following technical scheme: a protective chemical experiment teaching aid for middle school includes a base, a rotary table is connected to the top of the base in a rotating mode, a base plate is fixedly connected to the top of the rotary table through a bolt, a limiting rod penetrates through the top of the base plate, a transparent protective cover is fixedly connected to the top of the base plate through a bolt, a cover cap is connected to the top of the transparent protective cover in a rotating mode through a hinge, a transverse groove is formed in one side of the transparent protective cover, a sliding seat is connected to the inner wall of one side of the transverse groove in a sliding mode, a first elastic telescopic layer and a second elastic telescopic layer are connected between the sliding seat and the inner wall of the transverse groove through glue in a bonding mode, the first elastic telescopic layer is located on one side of the second elastic telescopic layer, a through hole is formed in the outer wall of one side, adjacent to the first elastic telescopic layer, of the sliding seat, of the outer wall of one side, far away from the through hole, of the sliding seat is connected with a thread sleeve in a rotating mode through threads, the utility model discloses a rubber gloves, including threaded sleeve, transparent protection casing, magnetic plate, screw rod nut seat, bolt fixedly connected with movable plate, the one end welding of threaded sleeve has the connecting seat, it glues glutinous rubber gloves to be connected with through glue on keeping away from one side outer wall of threaded sleeve on the connecting seat, the inside bottom of transparent protection casing is glued glutinous through glue and is connected with the magnetic sheet, the top of magnetic sheet is provided with the iron sheet, it is connected with first lead screw to rotate on one side inner wall of iron sheet, the one end welding of first lead screw has the second lead screw, and the other end welding of first lead screw has the hand wheel, close soon through the screw thread on one side outer wall of first lead screw and second lead screw and be connected with screw rod nut seat, the top of screw rod nut seat is through bolt fixedly connected with the movable plate, glue glues glutinous rubber pad on one side outer wall of movable plate.

Preferably, the top of the base and the top of the base plate are both provided with limiting holes corresponding to the limiting rods.

Preferably, the magnetic plate and the iron plate are connected through magnetic adsorption.

Preferably, the thread directions of the first lead screw and the second lead screw are opposite.

Preferably, the moving plate is in sliding connection with the iron plate through a sliding block and a sliding groove.

Preferably, the through hole is communicated with the threaded sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: this middle school is with protection formula chemistry experiment teaching aid, through mutually supporting of transparent protection casing and rubber gloves, through the slip of slide on the cross slot, first elastic stretching layer and second elastic stretching layer compression stretch under the pressurized, and then realize sheltering from the cross slot, improve the protectiveness of transparent protection casing, avoid the problem that liquid medicine sputtering in the experiment teaching aid caused personnel's injury, also can effectually carry out better protection to the front-seat student, centre gripping and the absorption of iron board on the magnetic sheet through the movable plate, can realize experimental apparatus's stability fixed, avoid the utensil collision to empty the damage, improve the protectiveness to the utensil, in addition, through the rotation of base plate, can be convenient for the student carry out subsequent experimental operation.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a schematic view of the internal structure of the transparent protective cover of the present invention;

fig. 5 is a front view of the connecting seat of the present invention;

fig. 6 is a schematic view of the internal structure of the iron plate of the present invention.

In the figure: 1. a base; 2. a turntable; 3. a substrate; 4. a limiting rod; 5. a transparent protective cover; 6. a cover; 7. a transverse groove; 8. a slide base; 9. a first elastically stretchable layer; 10. a second elastically stretchable layer; 11. a through hole; 12. a threaded sleeve; 13. a connecting seat; 14. rubber gloves; 15. a magnetic plate; 16. an iron plate; 17. A first lead screw; 18. a second lead screw; 19. a hand wheel; 20. a screw nut seat; 21. moving the plate; 22. And (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a protective chemical experiment teaching aid for middle school includes a base 1, a rotary table 2 is rotatably connected with the top of the base 1, a base plate 3 is fixedly connected with the top of the rotary table 2 through a bolt, a limiting rod 4 penetrates through the top of the base plate 3, a transparent protective cover 5 is fixedly connected with the top of the base plate 3 through a bolt, a cover 6 is rotatably connected with the top of the transparent protective cover 5 through a hinge, a transverse groove 7 is arranged at one side position of the transparent protective cover 5, a slide carriage 8 is slidably connected with the inner wall of one side of the transverse groove 7, a first elastic telescopic layer 9 and a second elastic telescopic layer 10 are adhesively connected between the slide carriage 8 and the inner wall of the transverse groove 7 through glue, the first elastic telescopic layer 9 is positioned at one side of the second elastic telescopic layer 10, a through hole 11 is arranged on the outer wall of one side of the slide carriage 8 adjacent to the first elastic telescopic layer 9, and a thread sleeve 12 is rotatably connected with the outer wall of one side of the slide carriage 8 far away from the through hole 11 through a thread, the welding of the one end of thread bush 12 has connecting seat 13, it is connected with rubber gloves 14 to glue through glue on the one side outer wall of keeping away from thread bush 12 on connecting seat 13, the inside bottom of transparent protection casing 5 is connected with magnetic sheet 15 through glue glues glutinous, the top of magnetic sheet 15 is provided with indisputable board 16, it is connected with first lead screw 17 to rotate on the one side inner wall of indisputable board 16, second lead screw 18 is welded to the one end of first lead screw 17, and the other end welding of first lead screw 17 has hand wheel 19, it is connected with screw nut seat 20 to close through the screw thread soon on one side outer wall of first lead screw 17 and second lead screw 18, bolt fixedly connected with movable plate 21 is passed through at the top of screw nut seat 20, it is connected with rubber pad 22 to glue glutinous on one side outer wall of movable plate 21.

The utility model discloses in: the top of the base 1 and the top of the base plate 3 are both provided with limiting holes corresponding to the limiting rods 4; the limiting rod 4 can conveniently penetrate through the substrate 3 and the base 1, so that the substrate 3 is fixed in position.

The utility model discloses in: the magnetic plate 15 and the iron plate 16 are connected through magnetic adsorption; so that the iron plate 16 can be easily attached to the magnetic plate 15.

The utility model discloses in: the thread directions of the first lead screw 17 and the second lead screw 18 are opposite; the screw-nut seats 20 on the first screw 17 and the second screw 18 are convenient to move towards or away from each other.

The utility model discloses in: the moving plate 21 is connected with the iron plate 16 in a sliding way through a sliding block and a sliding groove.

The utility model discloses in: the through hole 11 is communicated with the threaded sleeve 12.

The working principle is as follows: when in use, the base 1 is placed on an experiment table, the cover cap 6 is opened, an appliance needing experiment demonstration is placed inside the transparent protective cover 5, the appliance is placed on an iron plate 16, the hand wheel 19 is rotated, the hand wheel 19 drives the first lead screw 17 to rotate, the first lead screw 17 drives the second lead screw 18 to rotate, the first lead screw 17 and the second lead screw 18 are connected with the screw nut seats 20 in a screwing mode, the two screw nut seats 20 respectively drive the two movable plates 21 to move oppositely, the rubber pads 22 on the two movable plates 21 squeeze the experimental appliance, clamping and fixing of the experimental appliance are achieved, stability of placement of subsequent experimental teaching appliances is guaranteed, after placement of the experimental appliances is completed, the cover cap 6 is closed, a teaching worker inserts a hand into the through hole 11 in the sliding seat 8, the hand penetrates the rubber glove 14 after passing through the threaded sleeve 12 and the connecting seat 13, protection of the hand is achieved, and the sliding seat 8 slides on the transverse groove 7, first elastic stretching layer 9 and second elastic stretching layer 10 are compression stretch under the pressurized, and then realize sheltering from horizontal groove 7, improve transparent protection casing 5's protectiveness, avoid the liquid medicine sputtering in the experiment teaching aid to cause the problem of personnel's injury, also can effectually carry out better protection to the front seat student, when the needs student operates, extract gag lever post 4, rotation through carousel 2, rotate 180 degrees with base plate 3, insert base plate 3 and base 1 with gag lever post 4, realize base plate 3's fixed, the student can carry out subsequent experimental operation.

In summary, the following steps: this middle school is with protection formula chemistry experiment teaching aid, mutually support through transparent protection casing 5 and rubber gloves 14, slide 8 is passed through on the cross slot 7, first elastic stretching layer 9 and second elastic stretching layer 10 are compression stretch under the pressurized, and then realize sheltering from to cross slot 7, improve transparent protection casing 5's protectiveness, the liquid medicine sputtering of avoiding in the experiment teaching aid causes the problem of personnel's injury, also can effectually carry out better protection to the front-seat student, centre gripping and the absorption of iron board 16 on magnetic sheet 15 through movable plate 21, can realize the stable fixed of experimental apparatus, avoid the utensil collision to empty the damage, improve the protectiveness to the utensil, in addition, rotation through base plate 3, the student of can being convenient for carries out subsequent experimental operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a middle school is with protection formula chemistry experiment teaching aid, includes base (1), its characterized in that: the top of the base (1) is rotatably connected with a turntable (2), the top of the turntable (2) is fixedly connected with a substrate (3) through a bolt, the top of the substrate (3) is penetrated with a limiting rod (4), the top of the substrate (3) is fixedly connected with a transparent protective cover (5) through a bolt, the top of the transparent protective cover (5) is rotatably connected with a cover cap (6) through a hinge, one side position of the transparent protective cover (5) is provided with a transverse groove (7), a sliding seat (8) is slidably connected on the inner wall of one side of the transverse groove (7), a first elastic telescopic layer (9) and a second elastic telescopic layer (10) are connected between the sliding seat (8) and the inner wall of the transverse groove (7) through glue adhesion, the first elastic telescopic layer (9) is positioned on one side of the second elastic telescopic layer (10), the sliding seat (8) is provided with a through hole (11) on the outer wall of one side adjacent to the first elastic telescopic layer (9), and a threaded sleeve (12) is connected to the outer wall of one side of the sliding seat (8) far away from the through hole (11) in a screwing manner through threads, a connecting seat (13) is welded at one end of the threaded sleeve (12), a rubber glove (14) is connected to the outer wall of one side of the connecting seat (13) far away from the threaded sleeve (12) in a gluing manner through glue, a magnetic plate (15) is connected to the bottom inside the transparent protective cover (5) in a gluing manner through glue, an iron plate (16) is arranged at the top of the magnetic plate (15), a first lead screw (17) is rotatably connected to the inner wall of one side of the iron plate (16), a second lead screw (18) is welded at one end of the first lead screw (17), a hand wheel (19) is welded at the other end of the first lead screw (17), and a nut screw seat (20) is connected to the outer walls of one sides of the first lead screw (17) and the second lead screw (18) in a screwing manner through threads, the top of the screw and nut seat (20) is fixedly connected with a movable plate (21) through a bolt, and the outer wall of one side of the movable plate (21) is connected with a rubber pad (22) through glue adhesion.

2. The protective chemical experiment teaching aid for middle school according to claim 1, which is characterized in that: the top of the base (1) and the top of the base plate (3) are both provided with limiting holes corresponding to the limiting rods (4).

3. The protective chemical experiment teaching aid for middle school according to claim 1, which is characterized in that: the magnetic plate (15) is connected with the iron plate (16) through magnetic adsorption.

4. The protective chemical experiment teaching aid for middle school according to claim 1, which is characterized in that: the thread directions of the first lead screw (17) and the second lead screw (18) are opposite.

5. The protective chemical experiment teaching aid for middle school according to claim 1, which is characterized in that: the moving plate (21) is in sliding connection with the iron plate (16) through a sliding block and a sliding groove.

6. The protective chemical experiment teaching aid for middle school according to claim 1, which is characterized in that: the through hole (11) is communicated with the threaded sleeve (12).