CN201419577Y

CN201419577Y - Chalk sheath

Info

Publication number: CN201419577Y
Application number: CN2009200117560U
Authority: CN
Inventors: 贾玉薄
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-13
Filing date: 2009-03-13
Publication date: 2010-03-10
Anticipated expiration: 2019-03-13

Abstract

The utility model relates to a chalk sheath which comprises an inserting sheath, wherein two parallel inserting pipes are arranged from the end to the top of the inserting sheath, an opening is arranged on the top of the inserting sheath corresponding to one of the inserting pipes, female threads are processed on the inner wall of the inserting pipe, and a rotating button is also arranged on the inner wall of the inserting pipe; a movable cover is arranged at the opening of the other inserting pipe; concave surfaces are processed at both symmetric sides of the outer wall of the inserting sheath. When in use, a user opens the movable cover, inserts a short waste chalk into the inserting pipe which is provided with the movable cover, and puts on the movable cover for storage; when the chalksheath is used for writing, firstly taking out the rotating button, then inserting the chalks into the inserting pipe in order, keeping the chalks extend out of the top of the inserting pipe, inserting the rotating button inserting pipe in a rotating way for connecting and sealing, and finally nipping the concave surfaces at both sides of the inserting sheath; the extended chalk can be used for writing. The utility model has the advantages of simple structure, high convenience and practicality, wide application, reasonable technology and the like.

Description

Chalk sleeve

Technical field

The utility model relates to a kind of educational aid, especially a kind of chalk sleeve.

Background technology

As everyone knows, chalk is a most important writing implement in the present school instruction., chalk mainly is made up of corrosive chemical, and long-term the use has very big infringement to people's skin.For this reason, people have designed various protection instruments, and as chalk gloves, chalk overcoat or the like, but these protection instruments can only be assigned chalk, and the contact-making surface of isolated and skin but exists chalk to slide, can't store problems such as chalk.In order to address the above problem, we provide a kind of new-type chalk sleeve.

Summary of the invention

The purpose of this utility model provides a kind of chalk sleeve, is used to solve the common flour pen cap and can't keeps health, inconvenience to store problems such as chalk.

For achieving the above object, the utility model chalk sleeve comprises sleeve, offers two parallel intubate from the sleeve end to the top, and corresponding one of them intubate is offered opening on the sleeve top, at this intubate inwall machining internal thread, and the rotation push button is installed; Be provided with removable cover at another intubate opening part; At sleeve outer wall symmetry both sides processing concave surface.

After adopting said structure, during use, the user opens removable cover, and discarded short chalk head is assigned in the intubate with removable cover, covers active cover sealing then and stores; When being used to write, take out the rotation push button earlier, then the chalk head is assigned in this intubate one by one, keep the chalk head to stretch out from the intubate top, again rotation push button rotation insertion intubate is connected and seal, clamp the concave surface of sleeve both sides with finger at last, utilize the chalk head that stretches out just can write.

Compared with the prior art, the beneficial effects of the utility model are: simple in structure, convenient and practical, be widely used, technology is reasonable, can keep hand hygiene, can also store the chalk head, the condition of writing that facilitates.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model chalk sleeve.

Number in the figure: 1 is that sleeve, 2 is that intubate, 3 is that opening, 4 is that removable cover, 6 is a concave surface for rotating push button, 5.

The specific embodiment

As shown in Figure 1, the utility model chalk sleeve comprises sleeve 1, offers two parallel intubate 2 from sleeve 1 end to the top, and corresponding one of them intubate 2 is offered opening 3 on sleeve 1 top, at these intubate 2 inwall machining internal threads, and rotation push button 4 is installed; Be provided with removable cover 5 at another intubate 2 opening parts; At sleeve 1 outer wall symmetry both sides processing concave surface 6.

Claims

1, a kind of chalk sleeve, comprise sleeve (1), it is characterized in that: offer two parallel intubate (2) from sleeve (1) is terminal to the top, corresponding one of them intubate (2) is offered opening (3) on sleeve (1) top, at this intubate (2) inwall machining internal thread, and rotation push button (4) is installed; Be provided with removable cover (5) at another intubate (2) opening part; At sleeve (1) outer wall symmetry both sides processing concave surface (6).