CN204077142U - A kind of chalk sleeve - Google Patents

A kind of chalk sleeve Download PDF

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Publication number
CN204077142U
CN204077142U CN201420368035.6U CN201420368035U CN204077142U CN 204077142 U CN204077142 U CN 204077142U CN 201420368035 U CN201420368035 U CN 201420368035U CN 204077142 U CN204077142 U CN 204077142U
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CN
China
Prior art keywords
fixed muffle
chalk
main
clamping
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420368035.6U
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Chinese (zh)
Inventor
李佳
Original Assignee
李佳
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李佳 filed Critical 李佳
Priority to CN201420368035.6U priority Critical patent/CN204077142U/en
Application granted granted Critical
Publication of CN204077142U publication Critical patent/CN204077142U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of chalk sleeve, this chalk sleeve comprises main body, to be connected by axis of rotation with main body and hollow cylindrical clamping part for clamping chalk, clamping part comprises two pieces of semicircle shape fixed muffles, fixed muffle one end is provided with rotating shaft, and main body is provided with fixed muffle connection the axle sleeve coordinated with rotating shaft; Fixed muffle comprises symmetrically arranged first fixed muffle and the second fixed muffle, first fixed muffle is provided with the first magnetic stripe with the second fixed muffle junction, second fixed muffle is provided with the second magnetic stripe with the first fixed muffle junction, the first magnetic stripe and this second magnetic stripe phase-contact surface magnetic pole different; One end different with clamping part in main body is provided with laser lamp head, and body surfaces is provided with and controls the open/close laser switch of this laser lamp head, and this body interior is provided with power supply, and power supply is electrically connected by wire with laser switch and laser lamp head.Implement this chalk sleeve can be convenient to user and carry out demonstration PPT, decrease the probability that user touches chalk powder.

Description

A kind of chalk sleeve
Technical field
The utility model relates to study article field, more particularly, relates to a kind of chalk sleeve.
Background technology
Along with the development of science and technology, increasing school brings into use multimedia teaching, by the demonstration of lantern slide and PPT, be familiar with intuitively to student one, also mitigate the teaching load of teacher simultaneously, multimedia teaching carries more teaching resource, obtain the extensive accreditation of academics and students, teacher can carry out PPT demonstration by laser pen, also a small amount of as much as possible writing on the blackboard simultaneously, but there is student greatly still to like traditional teaching, like teacher's writing on the blackboard, so conveniently catch up with the thinking of teacher, but the finger in classroom can touch chalk in writing on the blackboard process, therefore powder can be left on finger, teacher is when writing on the blackboard in addition, one hand-held laser pen, another hand-held chalk, in a rush situation can be caused to occur.
Utility model content
The technical problems to be solved in the utility model is, demonstrates the defect of inconvenience, provide a kind of chalk sleeve when the above-mentioned teacher for prior art easily touches chalk powder and PPT teaching.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of chalk sleeve, this chalk sleeve comprises main body, to be connected by axis of rotation with this main body and hollow cylindrical clamping part for clamping chalk, this clamping part comprises two pieces of semicircle shape fixed muffles, this fixed muffle one end is provided with rotating shaft, and this main body is provided with this fixed muffle connection the axle sleeve coordinated with this rotating shaft;
These two pieces of semicircle shape fixed muffles comprise symmetrically arranged first fixed muffle and the second fixed muffle, this first fixed muffle is provided with the first magnetic stripe with this second fixed muffle junction, this second fixed muffle is provided with the second magnetic stripe with this first fixed muffle junction, this first magnetic stripe and this second magnetic stripe phase-contact surface magnetic pole different; This chalk is opened or clamped to this first fixed muffle and the second fixed muffle around this axis of rotation;
One end different with this clamping part in this main body is provided with laser lamp head, and this body surfaces is provided with and controls the open/close laser switch of this laser lamp head, and this body interior is provided with power supply, and this power supply is electrically connected by wire with this laser switch and laser lamp head.
In chalk sleeve described in the utility model, this chalk sleeve also comprises a cylindrical collar, and this collar is set in this clamping part outer wall when this first fixed muffle and the second fixed muffle clamp chalk.
In chalk sleeve described in the utility model, be arranged with swivel head in the middle part of this main body, this swivel head extends to this body interior, and this swivel head circle centre position is provided with internal thread rotating hole, be provided with the external thread rod coordinated with this internal thread hole in this main body, this external thread rod one end props up this chalk.
In chalk sleeve described in the utility model, this external thread rod abuts out with this chalk and is provided with block.
In chalk sleeve described in the utility model, this main body or clamping part outside wall surface are provided with friction striped.
In chalk sleeve described in the utility model, this first fixed cover and the second fixed cover inwall are provided with rubber antiskid layer.
Implement chalk sleeve of the present utility model, there is following beneficial effect: the utility model chalk sleeve is by being integrated on chalk sleeve by demonstration function of laser pointer, chalk sleeve loads onto chalk, one end can writing on the blackboard, the other end can demonstrate PPT, easy to use, decrease the probability that user touches chalk powder.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the first structural representation of the utility model chalk sleeve;
Fig. 2 is the second structural representation of the utility model chalk sleeve.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, 2, in chalk sleeve 1 first embodiment of the present utility model, this chalk sleeve 1 being comprised main body 2, being rotationally connected by rotating shaft 4 and hollow cylindrical clamping part 3 for clamping chalk 11 with this main body 2, this clamping part 3 comprises two pieces of semicircle shape fixed muffles, this fixed muffle one end is provided with rotating shaft 4, and this main body 2 is provided with this fixed muffle connection the axle sleeve coordinated with this rotating shaft 4;
These two pieces of semicircle shape fixed muffles comprise symmetrically arranged first fixed muffle 5 and the second fixed muffle 6, this first fixed muffle 5 is provided with the first magnetic stripe 7 with this second fixed muffle 6 junction, this second fixed muffle 6 is provided with the second magnetic stripe 8 with this first fixed muffle 5 junction, and this first magnetic stripe 7 is different with this second magnetic stripe 8 phase-contact surface magnetic pole; This first fixed muffle 5 and the second fixed muffle 6 are around this rotating shaft 4 rotating opening or clamp this chalk 11;
One end different with this clamping part 3 in this main body 2 is provided with laser lamp head 10, this main body 2 surface is provided with and controls the open/close laser switch 9 of this laser lamp head 10, this main body 2 inside is provided with power supply, and this power supply is electrically connected by wire with this laser switch 9 and laser lamp head 10.
When using chalk sleeve 1, firmly move the first fixed muffle 5 and the second fixed muffle 6 to both sides, the first magnetic stripe 7 and the second magnetic stripe 8 is caused to depart from, first fixed muffle 5 and the second fixed muffle 64 are opened around the shaft, chalk 11 can be put into chalk sleeve 1 by user easily, then 4 the first fixed muffle 5 and the second fixed muffle 6 is rotated in opposite directions around the shaft, first magnetic stripe 7 contacts again with the second magnetic stripe 8, under the magneticaction of the first magnetic stripe 7 and the second magnetic stripe 8, chalk 11 is by clamping with in clamping part 3, and user can implement writing on the blackboard; Can demonstrate on PPT at the comparatively remote laser pen that uses simultaneously simultaneously.
Further, be more fastening fixing chalk 11, this chalk sleeve 1 also comprises a cylindrical collar, and this collar is set in this clamping part 3 outer wall when this first fixed muffle 5 and the second fixed muffle 6 clamp chalk 11.
Further, stretch out gradually from clamping part 3 for ease of chalk 11, swivel head 12 is arranged with in the middle part of this main body 2, it is inner that this swivel head 12 extends to this main body 2, this swivel head 12 circle centre position is provided with internal thread rotating hole 13, be provided with the external thread rod 14 coordinated with this internal thread hole in this main body 2, this external thread rod 14 one end props up this chalk 11.This external thread rod 14 abuts out with this chalk 11 and is provided with block 15.
Further, grip chalk sleeve 1 easily for ease of user, this main body 2 or clamping part 3 outside wall surface are provided with friction striped.
Further, for preventing chalk 11 from skidding off in chalk sleeve 1, this first fixed cover and the second fixed cover inwall are provided with rubber antiskid layer 16.
This is only embodiment of the present utility model above; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (6)

1. a chalk sleeve, it is characterized in that, described chalk sleeve comprises main body, to be connected by axis of rotation with described main body and hollow cylindrical clamping part for clamping chalk, described clamping part comprises two pieces of semicircle shape fixed muffles, described fixed muffle one end is provided with rotating shaft, and described main body is provided with described fixed muffle connection the axle sleeve coordinated with described rotating shaft;
Described two pieces of semicircle shape fixed muffles comprise symmetrically arranged first fixed muffle and the second fixed muffle, described first fixed muffle is provided with the first magnetic stripe with described second fixed muffle junction, described second fixed muffle is provided with the second magnetic stripe with described first fixed muffle junction, described first magnetic stripe and described second magnetic stripe phase-contact surface magnetic pole different; Described chalk is opened or clamped to described first fixed muffle and the second fixed muffle around described axis of rotation;
One end different with described clamping part in described main body is provided with laser lamp head, described body surfaces is provided with and controls the open/close laser switch of described laser lamp head, described body interior is provided with power supply, and described power supply is electrically connected by wire with described laser switch and laser lamp head.
2. chalk sleeve according to claim 1, is characterized in that, described chalk sleeve also comprises a cylindrical collar, and the described collar is set in described clamping part outer wall when described first fixed muffle and the second fixed muffle clamp chalk.
3. chalk sleeve according to claim 1, it is characterized in that, swivel head is arranged with in the middle part of described main body, described swivel head extends to described body interior, described swivel head circle centre position is provided with internal thread rotating hole, be provided with the external thread rod coordinated with described internal thread hole in described main body, described external thread rod one end props up described chalk.
4. chalk sleeve according to claim 3, is characterized in that, described external thread rod abuts out with described chalk and is provided with block.
5. chalk sleeve according to claim 1, is characterized in that, described main body or clamping part outside wall surface are provided with friction striped.
6. chalk sleeve according to claim 1, is characterized in that, described first fixed cover and the second fixed cover inwall are provided with rubber antiskid layer.
CN201420368035.6U 2014-07-05 2014-07-05 A kind of chalk sleeve Expired - Fee Related CN204077142U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420368035.6U CN204077142U (en) 2014-07-05 2014-07-05 A kind of chalk sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420368035.6U CN204077142U (en) 2014-07-05 2014-07-05 A kind of chalk sleeve

Publications (1)

Publication Number Publication Date
CN204077142U true CN204077142U (en) 2015-01-07

Family

ID=52169897

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420368035.6U Expired - Fee Related CN204077142U (en) 2014-07-05 2014-07-05 A kind of chalk sleeve

Country Status (1)

Country Link
CN (1) CN204077142U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106218272A (en) * 2016-08-29 2016-12-14 彭展忠 Teaching dust arrester installation
CN106364222A (en) * 2016-08-29 2017-02-01 彭展忠 Dust-free teaching system for chalk writing
CN108758445A (en) * 2018-07-18 2018-11-06 余安琪 A kind of wall lamp for capableing of regulating irradiation angle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106218272A (en) * 2016-08-29 2016-12-14 彭展忠 Teaching dust arrester installation
CN106364222A (en) * 2016-08-29 2017-02-01 彭展忠 Dust-free teaching system for chalk writing
CN106218272B (en) * 2016-08-29 2017-12-22 彭展忠 Teaching dust arrester installation
CN108758445A (en) * 2018-07-18 2018-11-06 余安琪 A kind of wall lamp for capableing of regulating irradiation angle

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20160705

CF01 Termination of patent right due to non-payment of annual fee