CN212570062U

CN212570062U - Literature education demonstration instrument

Info

Publication number: CN212570062U
Application number: CN202021031903.3U
Authority: CN
Inventors: 王刚; 尹冠儒
Original assignee: Heibei University
Current assignee: Heibei University
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-19
Anticipated expiration: 2030-06-08

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a literature education demonstration instrument, which comprises an upper box body, a lower box body and a demonstration instrument main body, wherein a lifting device is arranged between the demonstration instrument main body and the lower box body, the lifting device is fixedly connected on the inner wall of the lower box body, the demonstration instrument main body is fixedly connected with the output end of the lifting device, the upper box body is rotatably connected with the lower box body through a rotating shaft, handles are respectively arranged on the upper box body and the lower box body, two third sliding blocks are symmetrically arranged on the upper box body in a fixed connection way, one end of each third sliding block is provided with a limiting groove, two sinking grooves are symmetrically arranged on the lower box body, two first sliding blocks and two second sliding blocks are symmetrically arranged on the lower box body in a sliding connection way, the device has reasonable design and simple structure, can be quickly opened and locked, and greatly improves the portability of the device, is suitable for popularization.

Description

Literature education demonstration instrument

Technical Field

The utility model relates to a teaching equipment technical field especially relates to a literature education demonstration appearance.

Background

With the scientific progress and the social development, the multimedia education is more widely applied, the demonstrator is teaching equipment which is most frequently applied, the existing demonstrator is an optical instrument which utilizes an optical element to amplify the outline of a workpiece and projects the workpiece onto a screen, the existing demonstrator can be used for measuring the outline by transmitted light and also can be used for measuring the surface shape of a non-through hole and observing the surface of a part by reflected light, the existing demonstrator has the problem of insufficient portability and is inconvenient to use, and therefore, the literature education demonstrator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of inconvenient use due to insufficient portability in the prior art and providing a literature education demonstration instrument.

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

the design is a literature education demonstration instrument, which comprises an upper box body, a lower box body and a demonstration instrument main body, wherein a lifting device is arranged between the demonstration instrument main body and the lower box body, the lifting device is fixedly connected to the inner wall of the lower box body, the output ends of the demonstration instrument main body and the lifting device are fixedly connected, the upper box body and the lower box body are rotatably connected through a rotating shaft, handles are arranged on the upper box body and the lower box body, two third sliding blocks are symmetrically arranged on the upper box body in a fixed connection mode, a limiting groove is formed in one end of each third sliding block, two sinking grooves are symmetrically formed in the lower box body, two first sliding blocks and two second sliding blocks are symmetrically arranged on the lower box body in a sliding connection mode, sliding grooves are formed in the second sliding blocks, sliding blocks matched with the sliding grooves are arranged on the first sliding blocks, and the first sliding blocks and the second sliding blocks are connected together, the spring is fixedly arranged at one end of the first sliding block and one end of the second sliding block, the limiting blocks are arranged at one ends of the first sliding block and the second sliding block, the first sliding block and the second sliding block are arranged on the outer side of the limiting groove, and the first sliding block and the second sliding block are connected with the limiting groove in a sliding mode.

Preferably, the third sliding block is made of rubber materials and matched with the sinking groove.

Preferably, the two limiting blocks are L-shaped, and the width of each limiting block is half of the width of each limiting groove.

The utility model provides a pair of literature education demonstration appearance, beneficial effect lies in: when in use, the height is adjusted by the lifting device below the demonstration instrument main body to perform education demonstration, after the use is finished, the lifting device is controlled by the external controller to withdraw the demonstration instrument main body, then the upper box body is rotated to lead the third slide block to be aligned with the sinking groove and slide in, and then the first slide block and the second slide block are simultaneously pressed and stirred oppositely to lead the two limiting blocks at the same side to be separated, when the third slide block slides to the bottom, the first slide block and the second slide block are loosened to slide under the action of the spring, the L-shaped limit block is buckled in the limit groove again to realize locking, then the whole device is lifted by the handle to drive the device to move, thereby realizing rapid opening and closing and locking, improving the portability of the device, the device reasonable in design simple structure can open and shut fast and lock fast, very big improvement the device portability, be fit for promoting.

Drawings

Fig. 1 is a schematic view of a closed state three-dimensional structure of a literature education demonstration instrument provided by the utility model;

fig. 2 is a schematic view of an open-close state three-dimensional structure of the literature education demonstration instrument provided by the utility model;

fig. 3 is a schematic view of a partial section structure of the literature education demonstration instrument provided by the utility model.

In the figure: the demonstration instrument comprises an upper box body 1, a lower box body 2, a first sliding block 3, a second sliding block 4, a handle 5, a sinking groove 6, a demonstration instrument main body 7, a third sliding block 8, a limiting groove 9, a sliding groove 10, a limiting block 11 and a spring 12.

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.

Referring to fig. 1-3, a literature education demonstration instrument comprises an upper box body 1, a lower box body 2 and a demonstration instrument main body 7, wherein a lifting device is arranged between the demonstration instrument main body 7 and the lower box body 2, the lifting device is fixedly connected on the inner wall of the lower box body 2, the demonstration instrument main body 7 is fixedly connected with the output end of the lifting device, the upper box body 1 is rotatably connected with the lower box body 2 through a rotating shaft, handles 5 are respectively arranged on the upper box body 1 and the lower box body 2, two third slide blocks 8 are symmetrically arranged on the upper box body 1 in a fixed connection mode, one end of each third slide block 8 is provided with a limiting groove 9, two sinking grooves 6 are symmetrically arranged on the lower box body 2, two first slide blocks 3 and two second slide blocks 4 are symmetrically arranged on the lower box body 2 in a sliding connection mode, slide grooves 10 are arranged on the second slide blocks 4, slide blocks 3 matched with the slide grooves 10 are arranged on the first slide blocks 3, and the first slide blocks 3, the one end of first slider 3 and second slider 4 all is fixed and is equipped with spring 12, the one end of first slider 3 and second slider 4 all is equipped with stopper 11, first slider 3 and second slider 4 all set up in the outside of spacing groove 9, first slider 3 and second slider 4 all with spacing groove 9 sliding connection, third slider 8 is made for rubber materials, and third slider 8 with sink groove 6 phase-match, two stoppers 11 are the L type, and the width of stopper 11 is half of spacing groove 9.

Through the elevating gear height-adjusting of demonstration appearance main part 7 below during the use, educate the demonstration, after the use, withdraw demonstration appearance main part 7 through external controller control elevating gear, box 1 is aimed at heavy groove 6 with third slider 8 and is slided in after that in the rotation, press simultaneously in opposite directions and stir first slider 3 and second slider 4, make two stopper 11 of homonymy part, when third slider 8 slides to the bottom, loosen first slider 3 and second slider 4, first slider 3 and second slider 4 that make slide under spring 12's effort, with L type stopper 11 lock again in spacing groove 9, realize the locking, mention whole device through handle 5 and can drive the device removal after that, realized opening and shutting fast and the locking, the device portability has been improved.

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 design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A literature education demonstration instrument comprises an upper box body (1), a lower box body (2) and a demonstration instrument main body (7), wherein a lifting device is arranged between the demonstration instrument main body (7) and the lower box body (2), the lifting device is fixedly connected to the inner wall of the lower box body (2), the demonstration instrument main body (7) is fixedly connected with the output end of the lifting device, the literature education demonstration instrument is characterized in that the upper box body (1) is rotatably connected with the lower box body (2) through a rotating shaft, handles (5) are arranged on the upper box body (1) and the lower box body (2), two third sliding blocks (8) are symmetrically arranged on the upper box body (1), a limiting groove (9) is formed in one end of each third sliding block (8), two sinking grooves (6) are symmetrically formed in the lower box body (2), two first sliding blocks (3) and two second sliding blocks (4) are symmetrically arranged on the lower box body (2), be equipped with spout (10) on second slider (4), be equipped with on first slider (3) with spout (10) assorted slider, sliding connection is in the same place between first slider (3) and second slider (4), the one end of first slider (3) and second slider (4) is all fixed and is equipped with spring (12), the one end of first slider (3) and second slider (4) all is equipped with stopper (11), first slider (3) and second slider (4) all set up in the outside of spacing groove (9), first slider (3) and second slider (4) all with spacing groove (9) sliding connection.

2. A literary education demonstration instrument according to claim 1, characterized in that said third slider (8) is made of rubber material and the third slider (8) is matched with the sunken groove (6).

3. The literature education demonstration instrument according to claim 1, characterized in that the two limiting blocks (11) are L-shaped, and the width of the limiting blocks (11) is half of the limiting groove (9).