CN217279874U

CN217279874U - Teaching aid for junior middle school physics electricity experiments

Info

Publication number: CN217279874U
Application number: CN202220721084.8U
Authority: CN
Inventors: 刘承忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-23
Anticipated expiration: 2032-03-31

Abstract

The utility model belongs to the technical field of teaching aids for experiments, in particular to a teaching aid for physical and electrical experiments in junior middle school, aiming at the problems of inconvenient carrying and storage, the utility model provides a proposal that comprises a box body, a box cover is rotatably arranged on the box body, a push-out mechanism is arranged in the box body, the push-out mechanism comprises a cylinder, the cylinder is fixedly connected with the inner wall of the bottom of the box body, a support plate is slidably arranged in the box body, the support plate is fixedly connected with a telescopic rod of the cylinder, a mounting frame and a lamp box are arranged on the support plate, a plurality of lamp holders are arranged on the mounting frame, two binding posts are arranged on the plurality of lamp holders, a locking mechanism is arranged in the box body, the locking mechanism comprises a rack, the rack is fixedly connected with the support plate, and a cavity is arranged on the inner wall of the box body, the utility model can automatically retract and retract the teaching aid, the carrying and storage are safer, the use is simple, and the operation is convenient.

Description

Teaching aid for junior middle school physics electricity experiments

Technical Field

The utility model relates to a teaching aid technical field for the experiment especially relates to a teaching aid for junior middle school physics electricity experiments.

Background

Electricity is one of the branch subjects of physics, and mainly researches the formation and application of electricity, since the middle of the 18 th century, the research on electricity is gradually developed, each important discovery of the electricity causes wide practical research, so that the rapid development of scientific technology is promoted, electricity can be called as electromagnetism, is a basic subject with important significance in physics, and students can learn better, and generally need to use some experimental teaching aids for teaching.

An authorization notice number is CN204857012U, and discloses a teaching aid for junior middle school physics electricity experiments, which comprises an electric wire placing groove, a base, a battery pack, a bracket, a lamp holder, a bulb, a switch, a voltmeter, an ammeter and a switch blade, wherein the electric wire placing groove is arranged at the front end of the base, and an electric wire is placed in the electric wire placing groove; install the support on the base, the support includes two side boards and sets up the top panel on the side board, but this teaching aid is because there is not protection mechanism, damages the bulb easily when carrying, leads to inconvenient carrying, inconvenient saving, and we have proposed a teaching aid for junior middle school physics electricity experiments for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of inconvenient carrying and inconvenient preservation existing in the prior art and providing a teaching aid for physics electricity experiments in junior middle school.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a teaching aid for junior middle school physics electricity experiments comprises a box body, wherein a box cover is rotatably arranged on the box body, a push-out mechanism is arranged in the box body, the push-out mechanism comprises an air cylinder, the air cylinder is fixedly connected with the inner wall of the bottom of the box body, a supporting plate is slidably arranged in the box body, the supporting plate is fixedly connected with a telescopic rod of the air cylinder, a mounting frame and a lamp box are arranged on the supporting plate, a plurality of lamp holders are arranged on the mounting frame, two binding posts are arranged on the plurality of lamp holders, a locking mechanism is arranged in the box body, the locking mechanism comprises a rack, the rack is fixedly connected with the supporting plate, a cavity is arranged on the inner wall of the box body, a gear is rotatably arranged in the cavity and is meshed with the rack, a first bevel gear is fixedly arranged on the gear, a second bevel gear is meshed with a rotating rod, the rotating rod is fixedly provided with an L-shaped hydrant, the box cover is provided with a pin hole, and the pin hole is matched with the L-shaped hydrant.

Preferably, a plurality of drawers are arranged on the box body, a charging hole is formed in the box body, a plug is arranged on the charging hole, and a battery is arranged in the box body.

Preferably, a bearing is arranged in the cavity, and an inner ring of the bearing is fixedly connected with the rotating rod.

Preferably, a vertical rail is arranged in the box body, and a current meter and a voltage meter are also arranged on the vertical rail and the mounting rack which is connected with the support plate in a sliding manner.

Compared with the prior art, the utility model has the advantages of:

1. this scheme is when using, and the cooperation setting of cylinder and backup pad can receive and release equipment in the ejecting mechanism, and when emitting, the teaching of conveniently testing is received in, can protective apparatus, conveniently carries, conveniently deposits.

2. When the scheme is used, the cover plate can protect equipment, retraction and release are not affected, and the box cover can be locked by matching the rack, the gear, the first bevel gear, the second bevel gear, the rotating rod, the L-shaped hydrant and the pin hole in the locking mechanism, so that the equipment can be better protected.

The utility model discloses can receive and release the teaching aid automatically, carry, deposit safelyr, simple to use, convenient operation.

Drawings

FIG. 1 is a schematic perspective view of a teaching aid for junior middle school physics electricity experiments provided by the present invention;

FIG. 2 is a schematic cross-sectional view of a first teaching aid for junior middle school physics electricity experiments according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic structural view of part A in FIG. 2 of a teaching aid for junior middle school physics electricity experiments provided by the present invention;

fig. 4 is the schematic sectional structure view of the second embodiment of the teaching aid for junior middle school physics electricity experiments provided by the utility model.

In the figure: the charging device comprises a box body 1, a box cover 2, a cylinder 3, a supporting plate 4, a mounting frame 5, a lamp box 6, a lamp holder 7, a binding post 8, a rack 9, a cavity 10, a gear 11, a first bevel gear 12, a second bevel gear 13, a rotating rod 14, a bolt 15L-shaped, a pin hole 16, a drawer 17, a charging hole 18, a pulling plate 19 and a handle 20.

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.

Example one

Referring to fig. 1-3, a teaching aid for junior middle school physics electricity experiments, including box 1, box cover 2 is installed in the rotation on box 1, be provided with ejecting mechanism in the box 1, ejecting mechanism includes cylinder 3, cylinder 3 and box 1's bottom inner wall fixed connection, slidable mounting has backup pad 4 in box 1, backup pad 4 and cylinder 3's telescopic link fixed connection, be provided with mounting bracket 5 and lamp box 6 on backup pad 4, be provided with a plurality of lamp stands 7 on mounting bracket 5, all be provided with two terminal 8 on a plurality of lamp stands 7, be provided with locking mechanical system in the box 1.

The utility model discloses in, locking mechanical system includes rack 9,

rack

9 and 4 fixed connection of backup pad, cavity 10 has been seted up on the inner wall of box 1, gear 11 is installed to the 10 internal rotations of cavity, gear 11 meshes with rack 9 mutually, fixed mounting has first bevel gear 12 on the gear 11, it has second bevel gear 13 to mesh on the first bevel gear 12, fixed mounting has bull stick 14 on second bevel gear 13, fixed mounting has L shape fire hydrant 15 on the bull stick 14, the pinhole 16 has been seted up on the case lid 2, pinhole 16 and L shape fire hydrant 15 mutually support.

The utility model discloses in, be provided with a plurality of drawers 17 on the box 1, be provided with the hole 18 that charges on the box 1, be provided with the jam on the hole 18 that charges, be provided with the battery in the box 1, tools such as electric wire, screwdriver can be deposited in a plurality of drawers 17's setting.

The utility model discloses in, be provided with the perpendicular rail in the box 1, perpendicular rail and 4 sliding connection of backup pad, perpendicular rail can make backup pad 4 slide at fixed position.

The utility model discloses in, be provided with the bearing in the cavity 10, the inner circle and the bull stick 14 fixed connection of bearing, the bearing can make bull stick 14 rotate at fixed position.

The working principle is as follows: when the device is used, the air cylinder 3 is started, the support plate 4 is driven to ascend, the support plate 4 ascends, the rack 9 is driven to ascend, the gear 11 is driven to rotate, the first bevel gear 12 is driven to rotate, the second bevel gear 13 is driven to rotate, the rotating rod 14 rotates, the L-shaped hydrant 15 is driven to rotate and is separated from the pin hole 16, the limit on the box cover 2 is released, the box cover 2 is opened, the support plate 4 continues to be controlled to ascend, the device completely extends out of the box body 1, the bulbs on the lamp box 6 are taken out and mounted on the lamp holders 7, the bulbs on the plurality of lamp holders 7 can be connected in series or in parallel for experimental teaching according to time requirements, the teaching effect is improved, after the use is finished, the bulbs are placed back into the lamp box 6, the support plate 4 is controlled to descend, after equipment got into box 1 completely, closed case lid 2, backup pad 4 continued to descend for 15 antiport of L shape fire hydrant, get into locking case lid 2 in the pinhole 16, carry this moment, preserve the teaching aid and all be difficult to by the damage.

Example two

Referring to fig. 4, the difference from the first embodiment is that: including box 1, rotate on box 1 and install case lid 2, be provided with ejecting mechanism in the box 1, ejecting mechanism includes cylinder 3, cylinder 3 and box 1's bottom inner wall fixed connection, slidable mounting has backup pad 4 in the box 1, backup pad 4 and cylinder 3's telescopic link fixed connection, be provided with mounting bracket 5 and lamp box 6 on the backup pad 4, be provided with a plurality of lamp stands 7 on the mounting bracket 5, all be provided with two terminals 8 on a plurality of lamp stands 7, be provided with locking mechanical system in the box 1, rotate on the box 1 and install two arm-tie 19, fixed mounting has same handle 20 on two arm-tie 19.

The working principle is as follows: when the teaching aid box is used, the teaching aid is lifted to a proper position by the aid of the portable handle 20, the handle 20 is rotated to one side of the box body 1, the air cylinder 3 is started, the supporting plate 4 is driven to ascend, the supporting plate 4 ascends, the rack 9 ascends, the gear 11 is driven to rotate, the first bevel gear 12 rotates, the second bevel gear 13 rotates, the rotating rod 14 rotates, the L-shaped hydrant 15 rotates and is separated from the pin hole 16, the limit on the box cover 2 is released, the box cover 2 is opened, the supporting plate 2 is continuously controlled to ascend, equipment completely extends out of the box body 1, bulbs are taken out of the lamp box 6 and are mounted on the lamp holders 7, and the bulbs on the lamp holders 7 can be connected in series or in parallel according to time requirements for experimental teaching, improve teaching effect, use the completion after, in the lamp box 6 is put back to the bulb, control backup pad 4 descends, after equipment got into box 1 completely, closes case lid 2, and backup pad 4 continues to descend for 15 antiport of L shape fire hydrant gets into locking case lid 2 in the pinhole 16, carries this moment, preserves and is difficult to damaged.

The rest is the same as the first embodiment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a teaching aid for physics electricity experiments in beginning, includes box (1), its characterized in that, box (1) is gone up to rotate and is installed case lid (2), be provided with ejecting mechanism in box (1), ejecting mechanism includes cylinder (3), the bottom inner wall fixed connection of cylinder (3) and box (1), slidable mounting has backup pad (4) in box (1), the telescopic link fixed connection of backup pad (4) and cylinder (3), be provided with mounting bracket (5) and lamp box (6) on backup pad (4), be provided with a plurality of lamp stands (7) on mounting bracket (5), all be provided with two terminal (8) on a plurality of lamp stands (7), be provided with locking mechanical system in box (1).

2. A teaching aid for junior middle school physics electricity experiments, according to claim 1, wherein the locking mechanism comprises a rack (9), the rack (9) is fixedly connected with the support plate (4), a cavity (10) is formed in the inner wall of the box body (1), a gear (11) is rotatably mounted in the cavity (10), the gear (11) is meshed with the rack (9), a first bevel gear (12) is fixedly mounted on the gear (11), a second bevel gear (13) is meshed on the first bevel gear (12), a rotating rod (14) is fixedly mounted on the second bevel gear (13), an L-shaped hydrant (15) is fixedly mounted on the rotating rod (14), a pin hole (16) is formed in the box cover (2), and the pin hole (16) is matched with the L-shaped hydrant (15).

3. A teaching aid for junior middle school physics electricity experiments according to claim 1, characterized in that, a plurality of drawers (17) are arranged on the box body (1), a charging hole (18) is arranged on the box body (1), a plug is arranged on the charging hole (18), and a battery is arranged in the box body (1).

4. A teaching aid for junior middle school physics electricity experiments according to claim 1, characterized in that vertical rails are arranged in the box body (1), and the vertical rails are connected with the supporting plate (4) in a sliding manner.

5. A teaching aid for junior middle school physics electricity experiments according to claim 2, characterized in that a bearing is arranged in the cavity (10), and the inner ring of the bearing is fixedly connected with the rotating rod (14).