CN202225598U

CN202225598U - Multifunctional rotary chalk sleeve with miniature blackboard eraser

Info

Publication number: CN202225598U
Application number: CN2011203250072U
Authority: CN
Inventors: 刘唯佳
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2011-09-01
Filing date: 2011-09-01
Publication date: 2012-05-23
Anticipated expiration: 2021-09-01

Abstract

The utility model discloses a multifunctional rotary chalk sleeve with a miniature blackboard eraser, which comprises a chalk sleeve main body. The chalk sleeve main body comprises a rotary cylinder and a pen sleeve. The bottom of the chalk sleeve main body is provided with a miniature blackboard eraser. Due to the adoption of the multifunctional rotary chalk sleeve, the erasing and modifying operation can be performed immediately during the writing process of the chalk. According to the structure of the multifunctional rotary chalk sleeve with a miniature blackboard eraser, an abandoned lipstick tube is adopted as a rotating and clamping part for the chalk. Therefore, the chalk sleeve is more beautiful in appearance, while wastes are fully utilized at the same time. In addition, the tail part of the chalk sleeve is provided with the miniature blackboard eraser, so that minimal errors generated during the writing process can be erased instantly. Therefore, the writing efficiency on the blackboard is effectively improved.

Description

A kind of multi-functional rotation chalk sleeve of miniature blackboard eraser that has

Technical field

The utility model relates to a kind of chalk sleeve, particularly a kind of multi-functional rotation chalk sleeve of miniature blackboard eraser that has.

Background technology

Chalk is an indispensable teaching aid in the learning activities in schools, and it is tempered by gypsum, an amount of binding agent and pigment etc. usually and molded drying obtains.Clear for the convenience of writing and writing on the blackboard stroke, the content of the binding agent in the chalk can be controlled at lower level usually.And gypsum is the material that powder-type has absorbent function simultaneously; In the process of using, has the crisp shortcoming with dust etc. of matter; If simultaneously the long-term directly hand of user is held, can cause human body aging to the skin human body of the corresponding contact portion of finger, and impel the generation of corrosion damage.Thereby for protecting user's hand, it is just right that the appearance of chalk sleeve just seems.General chalk sleeve all adopts the structure of shaft-like release type container.

In the writing on the blackboard activity of daily teaching; Usually such situation can appear; Mistake has appearred in certain unicursal in teacher's the writing on the blackboard; Select to go to take blackboard eraser to wipe as if this time and lose time a little,, deepened the injury of chalk dust teacher's health though the result of this behavior of time has been practiced thrift in this behavior for the teacher's selection under many circumstances of saving time is exactly to adopt hand to go directly to wipe.

The utility model content

For addressing the above problem, the utility model discloses a kind of multi-functional rotation chalk sleeve of miniature blackboard eraser that has, through the terminal miniature blackboard eraser that is provided with of chalk sleeve, practiced thrift the cost of chalk sleeve effectively, also improved the efficient that writing on the blackboard is write.

The utility model discloses a kind of multi-functional rotation chalk sleeve of miniature blackboard eraser that has and comprise the chalk sleeve main body, the chalk sleeve main body comprises revolves the tube and the pen cap, and the bottom of chalk sleeve main body is provided with miniature blackboard eraser, is provided with clamp structure in the pen cap.The disclosed multi-functional rotation chalk sleeve of miniature blackboard eraser that has of the utility model is released structure through rotation; The user of chalk and the direct chance that contacts of chalk have been reduced; Reduced of the infringement of the suction oil absorption of chalk to user's hand; Simultaneously, the clamp structure of its set inside has increased the holding function of chalk main body, has reduced the possibility that chalk comes off from chalk sleeve in use.

Disclosed a kind of being improved to that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model, clamp structure are plastic bushing or gum sleeve or metal holding frame.This improvement makes that through the qualification to clamp structure the scope of clamp structure and function are more clear and definite, is beneficial to the production cost that reduces enterprise.

The disclosed another kind that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model is improved to, and described miniature blackboard eraser is felt bond pad or sponge bond pad.This improvement is implemented in the instant erase feature of the small mistake in the writing process through the miniature blackboard eraser of pen cap afterbody, effectively raises the efficient that writing on the blackboard is write.

Through the disclosed multi-functional rotation chalk sleeve of miniature blackboard eraser that has of the utility model; Adopt rotation and the hold assembly of discarded lipstick tube as chalk; In the aesthetic property that increases chalk sleeve, also realized making full use of to discarded object; Through the miniature blackboard eraser of pen cap afterbody, be implemented in the instant erase feature of the small mistake in the writing process in addition, effectively raise the efficient that writing on the blackboard is write.

Description of drawings

Fig. 1, the disclosed structural representation that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model;

Fig. 2, the disclosed partial sectional view that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model;

Fig. 3, the disclosed A-A that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model are to view;

Fig. 4, the disclosed a kind of embodiment that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model.

Accompanying drawing is indicated tabulation:

1, lipstick tube; 2, chalk; 3, screw;

4, guide pillar; 5, screw thread; 6, revolve tube;

7, blackboard eraser; 8, guide rail; 9, clamp structure;

10, the pen cap; 11, chalk holder

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment, further illustrate the utility model, should understand the following specific embodiment only be used to the utility model is described and be not used in the restriction the utility model scope.

Extremely shown in Figure 4 like Fig. 1; The utility model discloses a kind of multi-functional rotation chalk sleeve of miniature blackboard eraser that has and comprise the chalk sleeve main body; The chalk sleeve main body comprises revolves the tube 6 and the pen cap 10, and the bottom of chalk sleeve main body is provided with miniature blackboard eraser 7, is provided with clamp structure 9 in the pen cap 10.

Disclosed a kind of being improved to that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model, clamp structure 9 are plastic bushing or gum sleeve or metal holding frame.

The disclosed another kind that has the multi-functional rotation chalk sleeve of miniature blackboard eraser of the utility model is improved to, and miniature blackboard eraser 7 is felt bond pad or sponge bond pad.

The utility model discloses a kind of tube 6 that revolves that has the multi-functional rotation chalk sleeve of miniature blackboard eraser flexibly connects through bayonet socket with the pen cap 10; The pen cap is provided with screw thread 5 on inner guide pillar 4 surfaces, the screw thread 5 that revolves tube 6 be arranged on its cylindrical shell inboard and with guide pillar 4 on screw thread 5 interlock mutually, the top of guide pillar 4 is provided with chalk holder 11; Chalk holder 11 is movably connected in the top of guide pillar 4; The edge of chalk holder 11 is provided with groove, is provided with the guide rail 8 that matches with projection in the inboard of the pen cap 10, when tube 6 is revolved in rotation; Guide pillar 4 promotion chalks 2 stretch out to the outside of the pen cap 10 under the promotion of screw thread 5; In chalk holder 11 and the pen cap 10 under the cooperation of side rails 8, when can be implemented in promotion chalk 2, avoided chalk 2 with the axle transfer.The clamp structure 9 of chalk sleeve is bonded in the chalk holder 11, is provided with screw 3 above the chalk holder 11, has realized the clamping of 10 pairs of chalks 2 of the pen cap through screw 3 and clamp structure 9.As shown in Figure 4, as a kind of preferred, the disclosed chalk sleeve of the utility model with lipstick tube 1 as carrier.

Claims

1. one kind has the multi-functional rotation chalk sleeve of miniature blackboard eraser; Comprise the chalk sleeve main body; Described chalk sleeve main body comprises revolves tube (6) and the pen cap (10); It is characterized in that: the bottom of described chalk sleeve main body is provided with miniature blackboard eraser (7), is provided with clamp structure (9) in the described pen cap (10).

2. the multi-functional rotation chalk sleeve of miniature blackboard eraser that has according to claim 1, it is characterized in that: described clamp structure (9) is plastic bushing or gum sleeve or metal holding frame.

3. the multi-functional rotation chalk sleeve of miniature blackboard eraser that has according to claim 1, it is characterized in that: described miniature blackboard eraser (7) is felt bond pad or sponge bond pad.