CN202525361U

CN202525361U - Electric chalk box

Info

Publication number: CN202525361U
Application number: CN2012201047069U
Authority: CN
Inventors: 张�荣
Original assignee: Dalian Vocational and Technical College
Current assignee: Dalian Vocational and Technical College
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-11-14
Anticipated expiration: 2022-03-19

Abstract

The utility model provides an electric chalk box which relates to a teaching aid, in particular to a box for holding chalk. The electric chalk box adopts the structure that a box body comprises an upper bin body and a lower bin body; the lower bin body is divided into two parts, wherein one part is a storage bin with a storage bin door arranged on one side, and the other part with a bin door arranged at the side part is internally provided with a battery, a micromotor and a conical gear; the micromotor is connected with the conical gear; the conical gear is meshed with a gear rack; a lifting boar and a connecting rod are mounted at the upper part of the gear rack; the upper end of the connecting rod is connected with a chalk outlet bin door through a rocking beam device; a square spring is mounted at one end of the inner side of the upper bin body; one end of the square spring is connected with a push board; a chalk bin push cover is arranged on one side of the upper bin body; an upper push cover is mounted at the upper part of the box body; touch press switches are mounted on the upper push cover; and the touch press switches, the battery and the micormotor are connected into a loop through lead wires. The electric chalk box has the characteristics of novel structure, simplicity and convenience in processing, convenience in use, portability, attractive appearance, economy, applicability and the like.

Description

Electronic chalk holder

Technical field

The described electronic chalk holder of the utility model relates to a kind of teaching aid, and concrete is a kind of box of adorning chalk.

Background technology

At present the chalk of teaching usefulness all is to be contained in the carton or in the portable chalk holder, to put together for tens, and this location mode has a lot of deficiencies:

1, the chalk with cartridge carton is not easy to deposit and carry, and fractures easily;

2, with tens chalks of cartridge carton, it is very inconvenient to take in use, often with pinching the chalk bits in the nail;

3, with the chalk moisture-sensitive of cartridge carton, influence is used;

4, with the box-packed chalk inconvenience when putting into and take out of portable chalk.

To existing problem in the above-mentioned prior art, a kind of novel electronic chalk holder of research and design, existing problem is very necessary in the prior art thereby overcome.

Summary of the invention

In view of existing problem in the above-mentioned prior art, the purpose of the utility model is a kind of novel electronic chalk holder of research and design.Exist in the prior art in order to solve: be easy to fracture, be not easy to carry, moisture-sensitive, problem such as be not easy to take.

The technical solution of the utility model is achieved in that

The described electronic chalk holder of the utility model is made up of box body, square spring, push pedal, chalk outlet door and chalk storehouse pushing cover; It is characterized in that described box body is processed as two warehouses up and down; Following warehouse is divided into two parts, and a part is the storing storehouse, and the one of which side is processed with the storing door, and battery, micromachine and bevel gear are equipped with in another part inside, are processed with door at its sidepiece; Micromachine is connected with bevel gear, bevel gear and tooth bar engagement; Riser and connecting rod are equipped with in tooth bar top; The connecting rod upper end is connected with the chalk outlet door through the fork device; At the inboard end of last warehouse square spring is housed, the other end of square spring is connected with push pedal; Side at last warehouse is processed with chalk storehouse pushing cover; On the top of box body pushing cover is housed, touch-pressure switch is housed above that; Touch-pressure switch, battery and micromachine connect into the loop through lead.

During use chalk storehouse pushing cover is opened, let push pedal compress square spring, chalk is put into the chalk storehouse; Pressing touch-pressure switch opens; Connect DC micromotor, the bevel gear on the motor drives tooth bar and upwards promotes, and the riser on the tooth bar upwards holds up chalk; Riser is pushed the chalk outlet door open through connecting rod simultaneously, and chalk delivers from godown.After the chalk extraction; Press touch-pressure switch and close, connect DC micromotor, the bevel gear on the motor drives tooth bar and spurs downwards; Riser on the tooth bar will move down with tooth bar and get back to original position, and the chalk outlet door is closed under driving at tooth bar, connecting rod, supporting plate simultaneously; After riser is got back to original position, under the promotion of square spring, next root chalk is passed on the riser in place forward, waited for next time and using.Can article such as USB flash disk be put into after the storing door is opened, store as zero the time and use.Adopt 3V direct current rotating micromachine can guarantee that lifting device moves up and down freely.

The utility model has the advantages that conspicuously, mainly show:

1, owing to used the utility model, when carrying and store, can chalk not fractureed;

2, press button because the utility model adopts, opening and closing are very convenient, and the chalk of taking is very convenient;

3,, avoided the unnecessary chalk phenomenon of making moist owing to used the utility model;

4, owing to used the utility model, leave the problem of chalk bits in the nail of having avoided causing owing to the chalk inconvenience of taking;

5, small articles such as USB flash disk can be placed in the storing storehouse of the utility model bottom, in order to avoid influence was given lessons in the past.

The utlity model has novel structure, process advantages such as easy, easy to use, easy to carry, elegant in appearance, economic and practical, it puts goods on the market in enormous quantities and will produce positive social benefit and remarkable economic efficiency.

Description of drawings

The utility model has 3 width of cloth accompanying drawings, wherein:

Accompanying drawing 1 the utility model stereogram;

Accompanying drawing 2 the utility model structural representations;

Accompanying drawing 3 is the A-A view of accompanying drawing 2.

In the drawings: 1, box body 2, chalk storehouse pushing cover 3, last pushing cover 4, touch-pressure switch 5, chalk outlet door 6, door 7, storing door 8, square spring 9, push pedal 10, fork device 11, connecting rod 12, riser 13, tooth bar 14, bevel gear 15, micromachine 16, battery 17, storing storehouse.

The specific embodiment

The practical implementation of the utility model for example shown in the accompanying drawing, is made up of box body 1, square spring 8, push pedal 9,

chalk outlet door

5 and 2 of chalk storehouse pushing covers; It is characterized in that described box body 1 is processed as two warehouses up and down; Following warehouse is divided into two parts, and a part is storing storehouse 17, and the one of which side is processed with storing door 7, and battery 16, micromachine 15 and bevel gear 14 are equipped with in another part inside, are processed with door 6 at its sidepiece; Micromachine 15 is connected with bevel gear 14, bevel gear 14 and tooth bar 13 engagements; Riser 12 and connecting rod 11 are equipped with in tooth bar 13 tops; Connecting rod 11 upper ends are connected with chalk outlet door 5 through fork device 10; At the inboard end of last warehouse square spring 8 is housed, the other end of square spring 8 is connected with push pedal 9; Side at last warehouse is processed with chalk storehouse pushing cover 2; On the top of box body 1 pushing cover 3 is housed, touch-pressure switch 4 is housed above that; Touch-pressure switch 4, battery 16 and micromachine 15 connect into the loop through lead.

The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; All are familiar with the technical staff in present technique field in the disclosed technical scope of the utility model, are equal to replacement or change according to the design of the technical scheme of the utility model and the utility model thereof all should be encompassed within the protection domain of the utility model.

Claims

1. an electronic chalk holder is made up of box body (1), square spring (8), push pedal (9), chalk outlet door (5) and chalk storehouse pushing cover (2); It is characterized in that described box body (1) is processed as two warehouses up and down; Following warehouse is divided into two parts, and a part is storing storehouse (17), and the one of which side is processed with storing door (7), and battery (16), micromachine (15) and bevel gear (14) are equipped with in another part inside, are processed with door (6) at its sidepiece; Micromachine (15) is connected with bevel gear (14), bevel gear (14) and tooth bar (13) engagement; Riser (12) and connecting rod (11) are equipped with in tooth bar (13) top; Connecting rod (11) upper end is connected with chalk outlet door (5) through fork device (10); At the inboard end of last warehouse square spring (8) is housed, the other end of square spring (8) is connected with push pedal (9); Side at last warehouse is processed with chalk storehouse pushing cover (2); On the top of box body (1) pushing cover (3) is housed, touch-pressure switch (4) is housed above that; Touch-pressure switch (4), battery (16) and micromachine (15) connect into the loop through lead.