CN201483959U

CN201483959U - chalk

Info

Publication number: CN201483959U
Application number: CN2009200295500U
Authority: CN
Inventors: 汤敏慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-14
Filing date: 2009-07-14
Publication date: 2010-05-26
Anticipated expiration: 2019-07-14

Abstract

The utility model discloses a chalk. The chalk comprises a chalk stick, a spiral push type sleeve and a hand guard cover. The chalk stick is arranged in the spiral push type sleeve, and the hand guard cover is a horn-shaped soft cover body. The spiral push type sleeve is inserted in the small opening of the hand guard cover, the spiral push type sleeve is bonded to the periphery of the small opening of the hand guard cover, the front end of the spiral push type sleeve is outside the hand guard cover, and the rear end of the spiral push type sleeve is in the hand guard cover. When the chalk is used for writing, a user holds the spiral push type sleeve rather than the chalk stick. The chalk stick can completely extend out of the spiral push type sleeve, so the chalk stick can be used up without waste. The hand guard cover can prevent a large amount of chalk powder from sticking to the hands of the user, so the hand guard cover performs excellent function for protecting the skin of the user. The utility model also has the advantages of simple structure, convenient use and good popularization and use value.

Description

A kind of chalk

Technical field

The utility model relates to a kind of chalk.

Background technology

The teacher writes on blackboard and still mainly utilizes the chalk rod at present, when the last length of chalk rod more in short-term, be difficult to control, have to throw away, waste very, and in writing process, can stick the chalk foam on teacher's hand and the coat-sleeve, can people's skin be damaged if stick the chalk foam on hand for a long time, so the teacher must clean after class immediately, brings a lot of inconvenience to the teacher.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of chalk rod eshaustibility is provided and can prevents that the chalk foam from adhering to chalk on hand.

In order to solve the problems of the technologies described above, the utility model comprises chalk rod, screw-pushing type sleeve pipe and hand guard glove, described chalk rod is arranged in the screw-pushing type sleeve pipe, hand guard glove is tubaeform soft body, the screw-pushing type sleeve pipe is inserted in the osculum of hand guard glove, the screw-pushing type sleeve pipe is mutually bonding with the periphery of the osculum of hand guard glove, and screw-pushing type sleeve pipe front end is in outside the hand guard glove, and the rear end of screw-pushing type sleeve pipe is in hand guard glove.

The beneficial effects of the utility model are: when writing; the user is holding the screw-pushing type sleeve pipe and need not hold the chalk rod; the chalk rod can reach outside the screw-pushing type sleeve pipe fully; therefore can use up, can not waste, and hand guard glove can prevent that a large amount of chalk foams from adhering to the user on hand; thereby to the good protective effect of having raised track of user's skin; and the utility model is simple in structure, and is easy to use, has good popularizing value.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model.

Wherein: 1, chalk rod, 2, the screw-pushing type sleeve pipe, 3, hand guard glove.

The specific embodiment

A kind of chalk as shown in Figure 1, it comprises chalk rod 1, screw-pushing type sleeve pipe 2 and hand guard glove 3, the structure of screw-pushing type sleeve pipe 2 is identical with the lipstick sleeve structure, screw-pushing type sleeve pipe 2 comprises fixedly base, outer tube, screw rod and rotating seat, fixedly base and screw rod are arranged in the outer tube, fixedly base is connected with screw flight, the rotating rear end that is arranged on outer tube of rotating seat, the rear end of screw rod is fixed on the rotating seat, fixedly the base outer wall is provided with axial groove, outer tube wall is provided with axial projection, and the axial projection of outer tube is stuck in the groove of fixing base.Chalk rod 1 one ends are fixed in the fixedly base of screw-pushing type sleeve pipe 2, hand guard glove 3 is tubaeform soft body, screw-pushing type sleeve pipe 2 is inserted in the osculum of hand guard glove 3, and the outer tube of screw-pushing type sleeve pipe 2 is mutually bonding with the periphery of the osculum of hand guard glove 3, and it is outer and the rear end is in the hand guard glove 3 that screw-pushing type sleeve pipe 2 front ends are in hand guard glove 3.

Using method: the user stretches into the right hand in the hand guard glove 3, the rotating seat of the pusher sleeve pipe 2 of rotating screw screws out one section with chalk rod 1 from screw-pushing type sleeve pipe 2, the right hand is held the outer tube of screw-pushing type sleeve pipe 2 then, hand guard glove 3 covers the right hand, can begin to write.

Claims

1. chalk, it is characterized in that: comprise chalk rod (1), screw-pushing type sleeve pipe (2) and hand guard glove (3), described chalk rod (1) is arranged in the screw-pushing type sleeve pipe (2), hand guard glove (3) is tubaeform soft body, screw-pushing type sleeve pipe (2) is inserted in the osculum of hand guard glove (3), screw-pushing type sleeve pipe (2) is mutually bonding with the periphery of the osculum of hand guard glove (3), screw-pushing type sleeve pipe (2) front end is in outside the hand guard glove (3), and the rear end of screw-pushing type sleeve pipe (2) is in hand guard glove (3).