CN212167455U

CN212167455U - Protector is used to student's experiment class

Info

Publication number: CN212167455U
Application number: CN202020094404.2U
Authority: CN
Inventors: 胡楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-12-18
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a protective device for student experiment lessons, which comprises a device main body and a reaction container, wherein an experiment cavity is arranged on the outer surface of the device main body, the open end of the experiment cavity is provided with a transparent endurance plate through sliding of a sliding groove, the reaction container is placed on the inner bottom surface of the experiment cavity, two mutually meshed second gears are rotatably installed at the upper end of the inner surface of the experiment cavity through a rotating shaft, a third gear is fixedly sleeved on the outer surface of the rotating shaft of the second gear at one side, and material placing plates are fixedly arranged at the end parts of the rotating shafts of the two second gears; through design rack and first gear, press first slide bar downwards for the reaction effect is carried out in the reaction vessel is gone into in the reaction material that the inboard portion was placed to the material falls under the action of gravity, seals up the laboratory cave through transparent endurance board, and reaction solution can not the spill touch experimenter, has effectively improved the safety protection performance, and need not to dress the protective clothing or wear the goggles, makes the experiment operation nimble more convenient.

Description

Protector is used to student's experiment class

Technical Field

The utility model belongs to the technical field of teaching experiment equipment, concretely relates to protector is used to student's experiment class.

Background

The experiment course is a course in which students learn to use certain instruments, equipment, materials and means under the guidance of teachers, perform related observation, measurement, data processing and analysis on certain specific problems, and obtain or verify certain scientific conclusions, and aims to cultivate skills of students for observing, understanding various motion phenomena and researching and exploring motion rules of the students by using an experiment method, but the experiment has certain dangerousness, and partial experiments are subjected to sodium-water experiments, so that explosion reactions can occur, and not only teachers and students need to be guided to monitor, but also protection devices need to be equipped for the teachers and students of the experiment.

Current student tests protector for class, and it is protective mask, gloves and protective clothing etc. mostly to have traditional protector, and this kind of protector dresses comparatively trouble, and the problem of teachers and students 'operation experiment of also being convenient for is for this reason we provide a protector for student's experiment class.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protector is used in student's experiment class to solve the current protector for student's experiment class that provides in the above-mentioned background art, there is traditional protector mostly protecting mask, gloves and protective clothing etc. this type of protector dresses comparatively trouble, the problem of also being convenient for teachers and students ' operation experiment.

In order to achieve the above object, the utility model provides a following technical scheme: a protective device for student experiment lessons comprises a device main body and a reaction container, wherein an experiment cavity is formed in the outer surface of the device main body, a transparent endurance plate is arranged at the open end of the experiment cavity in a sliding mode through a sliding groove, the reaction container is placed on the inner bottom surface of the experiment cavity, two mutually meshed second gears are rotatably installed at the upper end of the inner surface of the experiment cavity through a rotating shaft, a third gear is fixedly sleeved on the outer surface of the rotating shaft of the second gear on one side, material placing plates are fixedly arranged at the end parts of the rotating shafts of the two second gears, the two material placing plates are parallel to the inner bottom surface of the experiment cavity, a first sliding rod is embedded into the upper surface of the device main body in a sliding mode, a rack is fixedly arranged at the lower end of the first sliding rod, a second sliding rod is fixedly arranged at the lower end of the rack, a sliding sleeve at the lower, and a return spring is fixedly arranged between the embedded end of the second slide bar and the inner bottom surface of the slide cylinder, a first gear is rotatably arranged on the inner wall of the experimental cavity, and the first gear is meshed with the rack and the third gear.

Preferably, the second slide bar is a hexagonal prism, the sliding cylinder is an inner hexagonal sliding cylinder, and a limiting ring is fixedly sleeved on the outer surface of the first slide bar.

Preferably, the upper surface of the material placing plate is provided with a concave cavity, the adjacent ends of the two material placing plates are respectively provided with a protrusion and a concave edge, and the protrusion is matched with the concave edge.

Preferably, an observation window penetrating through the experimental cavity is formed in one side of the upper surface of the device main body, and a transparent polycarbonate plate is hermetically embedded in the observation window.

Preferably, a containing cavity is formed in the other side of the upper surface of the device main body, and a cover plate is rotatably mounted at the end of the containing cavity through a hinge. Preferably, the outer surface edge of the transparent endurance plate is fixedly provided with a magnet, the inner edge of the opening end of the experimental cavity is embedded with a rubber magnetic strip, and the magnet is adsorbed with the rubber magnetic strip.

Preferably, a tray is embedded into the inner bottom surface of the experimental cavity, and a groove is formed in the upper surface of the tray.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through design rack and first gear, press first slide bar downwards for the reaction effect is carried out in the reaction vessel is gone into in the reaction material that the inboard portion was placed to the material falls under the action of gravity, seals up the laboratory cave through transparent endurance board, and reaction solution can not the spill touch experimenter, has effectively improved the safety protection performance, and need not to dress the protective clothing or wear the goggles, makes the experiment operation nimble more convenient.

(2) Through design hexagonal prism and interior hexagonal slide cartridge, ensure the accurate meshing of rack and first gear, set up the spacing ring, ensure that the material is placed the board and is reset to horizontal position, set up protruding and concave edge, effectively avoid powdered material from the gap landing, set up the observation window, the experiment operator of being convenient for observes reaction, sets up and accomodates the chamber, is convenient for take fast and deposits reaction vessel, sets up the tray, is convenient for collect and clear up the reaction solution who splashes.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the device body of the present invention;

FIG. 3 is a top view of the material placing plate of the present invention;

FIG. 4 is a cross-sectional view of the slide cartridge of the present invention;

fig. 5 is a top view of the tray of the present invention;

in the figure: 1. a device main body; 2. a first slide bar; 3. a rack; 4. a first gear; 5. a second slide bar; 6. a slide cylinder; 7. a tray; 8. a reaction vessel; 9. a transparent endurance plate; 10. a magnet; 11. a second gear; 12. a material placing plate; 13. a third gear; 14. an observation window; 15. a receiving cavity; 16. a protrusion; 17. a concave edge; 18. a return spring.

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.

Examples

Referring to fig. 1-5, the present invention provides a technical solution: a protective device for student experiment lessons comprises a device main body 1 and a reaction container 8, wherein an experiment cavity is formed in the outer surface of the device main body 1, a transparent endurance plate 9 is arranged at the open end of the experiment cavity in a sliding mode through a sliding groove, the reaction container 8 is placed on the inner bottom surface of the experiment cavity, two mutually meshed second gears 11 are rotatably installed at the upper end of the inner surface of the experiment cavity through a rotating shaft, a third gear 13 is fixedly sleeved on the outer surface of the rotating shaft of the second gear 11 on one side, material placing plates 12 are fixedly arranged at the end portions of the rotating shaft of the two second gears 11 through shaft sleeves, the two material placing plates 12 are parallel to the inner bottom surface of the experiment cavity, a first sliding rod 2 is embedded into the upper surface of the device main body 1 in a sliding mode, a rack 3 is fixedly welded at the lower end of the first sliding rod 2, a second sliding rod 5 is fixedly welded, slide cartridge 6 and device main part 1 pass through connecting block welded fastening, and the fixed reset spring 18 that is provided with between the interior bottom surface of the embedded end of second slide bar 5 and slide cartridge 6, the inner wall of laboratory cave rotates and installs first gear 4, first gear 4 is connected with rack 3 and the meshing of third gear 13, press first slide bar 2, it is connected with the meshing of first gear 4 to drive rack 3 through first slide bar 2, the rotation of first gear 4 drives third gear 13 and second gear 11 and rotates, and then it is rotatory downwards to drive the material and place board 12, the material is placed the inside reaction material of board 12 and is fallen into reaction vessel 8 and interact with inside reaction solution under the action of gravity, the experiment person need not to move hand contact reaction solution and reaction material in-process is opened in this experiment, the safety protection performance has effectively been improved.

In this embodiment, the second slide bar 5 is a hexagonal prism, the slide cylinder 6 is an inner hexagonal slide cylinder, the outer surface of the first slide bar 2 is fixedly sleeved with a limiting ring, and the hexagonal prism and the inner hexagonal slide cylinder are arranged to limit the rotation of the second slide bar 5, so as to ensure the accurate meshing of the rack 3 and the first gear 4.

In this embodiment, the upper surface of the material placing plate 12 is provided with a concave cavity, and the adjacent ends of the two material placing plates 12 are respectively provided with a protrusion 16 and a concave edge 17, and the protrusion 16 is matched with the concave edge 17 to form the concave cavity, so that the reaction materials can be stably placed.

In this embodiment, an observation window 14 penetrating through the experimental cavity is formed in one side of the upper surface of the device body 1, a transparent polycarbonate plate is hermetically embedded in the observation window 14, and the observation window 14 with the transparent polycarbonate plate is provided, so that an experimental operator can observe the reaction phenomenon conveniently.

In this embodiment, the storage cavity 15 has been seted up to the upper surface opposite side of device main part 1, and the tip of storing cavity 15 is rotated through the hinge and is installed the apron, sets up storage cavity 15, is convenient for deposit the container that will be used for the reaction in storing cavity 15, the use of taking when making things convenient for the experiment.

In this embodiment, the fixed magnet 10 that is provided with in surface edge of transparent endurance plate 9, is provided with the rubber magnetic stripe along the embedding in the open end in experiment chamber, and magnet 10 adsorbs mutually with the rubber magnetic stripe, sets up rubber magnetic stripe and magnet 10, and the switch of being convenient for and fixed transparent endurance plate 9, and magnet 10 is last to have seted up the blind hole, is convenient for pull open it or close with the finger.

In this embodiment, the interior bottom surface embedding of laboratory cave is provided with tray 7, and the upper surface of tray 7 is seted up flutedly, sets up tray 7, is convenient for collect and clear up the reaction solution that spills.

The utility model discloses a theory of operation and use flow: by arranging the device main body 1, reaction material solid matter is firstly placed in the material placing plate 12 during an experiment, then a reaction container 8 filled with reaction solution is placed in an experiment cavity and is positioned under the material placing plate 12, then the transparent stress plate 9 is tightly closed, a student watching the experiment stands at the front end of the device main body 1 and can observe reaction phenomenon through the transparent stress plate 9, a student or a teacher operating the experiment stands at the rear end of the device main body 1, then the first slide bar 2 is pressed, the rack 3 is driven to be meshed and connected with the first gear 4 through the first slide bar 2, the third gear 13 and the second gear 11 are driven to rotate by the rotation of the first gear 4, the material placing plate 12 is driven to rotate downwards, the reaction material in the material placing plate 12 falls into the reaction container 8 under the action of gravity and interacts with the reaction solution in the reaction container, an experimenter does not need to contact the reaction solution and the reaction material by hands during the opening process of the experiment, the safety protection performance is effectively improved, and protective clothing or goggles do not need to be worn, so that the experimental operation is more flexible and convenient;

the rotation of the second slide bar 5 is limited by arranging the hexagonal prism and the inner hexagonal sliding barrel, the accurate meshing of the rack 3 and the first gear 4 is ensured, the limiting ring is arranged, the slipping of the second slide bar 5 and the sliding barrel 6 is prevented, meanwhile, the material placing plates 12 can be reset and rotated to a horizontal position, the concave cavities are arranged, stable placing of reaction materials is facilitated, the protrusions 16 and the concave edges 17 are arranged, powdery materials are effectively prevented from slipping off from the joint of the two material placing plates 12, the accommodating cavity 15 is arranged, a container for reaction is conveniently stored in the accommodating cavity 15, taking and using during experiments are facilitated, the rubber magnetic strips and the magnets 10 are arranged, opening and closing of the transparent endurance plates 9 are facilitated, and the magnet 10 is provided with a blind hole for being conveniently pulled open or closed by fingers and is provided with a groove, the reaction vessel 8 is limited, and the reaction vessel 8 can not largely shake and shift in the reaction process.

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 protector is used to student's experiment class, includes device main part (1) and reaction vessel (8), its characterized in that: the outer surface of the device main body (1) is provided with an experimental cavity, the open end of the experimental cavity is provided with a transparent endurance plate (9) in a sliding manner through a sliding groove, the inner bottom surface of the experimental cavity is placed on the reaction container (8), two mutually meshed second gears (11) are installed at the upper end of the inner surface of the experimental cavity in a rotating manner through a rotating shaft, a third gear (13) is fixedly sleeved on the outer surface of the rotating shaft of the second gear (11) on one side, materials placing plates (12) are fixedly arranged at the end parts of the rotating shaft of the two second gears (11), the two materials placing plates (12) are parallel to the inner bottom surface of the experimental cavity, a first sliding rod (2) is embedded in the upper surface of the device main body (1) in a sliding manner, a rack (3) is fixedly arranged at the lower end of the first sliding rod (2), a second sliding rod (5) is fixedly arranged at the lower end of the rack (3, slide cartridge (6) and device main part (1) fixed connection, and the embedding end of second slide bar (5) is fixed between the interior bottom surface of slide cartridge (6) and is provided with reset spring (18), first gear (4) are installed in the inner wall rotation in experiment chamber, first gear (4) are connected with rack (3) and third gear (13) meshing.

2. The protective device for the student experiment class according to claim 1, wherein: the second slide bar (5) is a hexagonal prism, the sliding barrel (6) is an inner hexagonal sliding barrel, and a limiting ring is fixedly sleeved on the outer surface of the first slide bar (2).

3. The protective device for the student experiment class according to claim 1, wherein: the upper surface of the material placing plates (12) is provided with a concave cavity, the adjacent ends of the two material placing plates (12) are respectively provided with a bulge (16) and a concave edge (17), and the bulge (16) is matched with the concave edge (17).

4. The protective device for the student experiment class according to claim 1, wherein: an observation window (14) penetrating through the experimental cavity is formed in one side of the upper surface of the device main body (1), and a transparent polycarbonate plate is embedded in the observation window (14) in a sealing mode.

5. The protective device for the student experiment class according to claim 1, wherein: the device is characterized in that a containing cavity (15) is formed in the other side of the upper surface of the device main body (1), and a cover plate is rotatably installed at the end of the containing cavity (15) through a hinge.

6. The protective device for the student experiment class according to claim 1, wherein: the outer surface edge of transparent endurance plate (9) is fixed and is provided with magnet (10), the embedding is provided with the rubber magnetic stripe along the open end in experiment chamber, magnet (10) and rubber magnetic stripe adsorb mutually.

7. The protective device for the student experiment class according to claim 1, wherein: the tray (7) is embedded into the inner bottom surface of the experiment cavity, and a groove is formed in the upper surface of the tray (7).