CN201812398U - Pointer - Google Patents
Pointer Download PDFInfo
- Publication number
- CN201812398U CN201812398U CN2010205848940U CN201020584894U CN201812398U CN 201812398 U CN201812398 U CN 201812398U CN 2010205848940 U CN2010205848940 U CN 2010205848940U CN 201020584894 U CN201020584894 U CN 201020584894U CN 201812398 U CN201812398 U CN 201812398U
- Authority
- CN
- China
- Prior art keywords
- handle
- chalk
- cavity
- chalk sleeve
- screw rod
- 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
Links
Images
Abstract
The utility model relates to a pointer, which belongs to the technical field of teaching aid structures. A chalk sleeve is arranged in a cavity on the right side of a handle. A screw rod is arranged on the central axis of the cavity on the right side of the handle. The left end of the screw rod is fixed on a partition board. A circular positioning plate is arranged at the right end of the screw rod. The chalk sleeve is arranged on the screw rod by a nut in a central hole on an internal sealing end face, is in clearance fit with the handle and can rotate about the screw rod in the cavity. The excircle of the circular positioning plate is in clearance fit with the chalk sleeve. A cap is arranged at the outer open end of the chalk sleeve. The pointer has the advantages of freeing teachers from the pollutions of chalk tray, improving teaching efficiency and serving as a chalk writing tool, and is convenient to carry.
Description
Technical field
The utility model relates to a kind of teacher's pointer, belongs to the teaching aid technical field of structures.
Background technology
The teacher gives a lesson in the process normally after writing the teaching content that finishes with chalk on the blackboard, putting down chalk picks up the pointer and guides the written contents limit to explain, concentrate student's study notice, its shortcoming is directly to take chalk easily to be stained with chalk dust, unhygienic with hand, fetch in the process of chalk and teacher's pointer more busy, the notice of having disperseed the student, the efficient that influence is taught.
Summary of the invention
The purpose of this utility model provides the pollution that a kind of teacher of making breaks away from chalk dust, improves the efficient of giving lessons, and can doublely make the teacher's pointer of chalk writing appliance.
A kind of teacher's pointer is made up of telescopic lever 1 and handle 2, and handle 2 is a cannulated sleeve, is separated into left and right two cylindricality cavitys by dividing plate, and telescopic lever 1 stiff end is positioned at the cavity in handle 2 left sides, it is characterized in that being provided with in the cavity on handle 2 right sides chalk sleeve 3; Also be provided with screw mandrel 5 on the axis of handle 2 right side cavitys; Screw mandrel 5 left ends are fixed on the dividing plate, establish circular location-plate 6 on screw mandrel 5 right-hand members; Chalk sleeve 3 is installed on the screw mandrel 5 by the screw 4 in the inner sealing end face mesopore, but chalk sleeve 3 and handle 2 clearance fit, wire winding rod rotation in cavity; Circular location-plate 6 cylindricals and chalk sleeve 3 clearance fit; Establish the cap for brush 7 on the chalk sleeve 3 outer openends.
Owing to adopt technique scheme, during use, the cap for brush is opened, rotate counterclockwise the chalk sleeve, the chalk sleeve moves right to chalk being loaded on wherein along screw mandrel, clockwise rotate the chalk sleeve again, under the effect of location-plate, it is exposed to the suitable length of writing to regulate chalk, write, write and finish, telescopic lever is pulled out into a teacher's pointer, guide written contents to explain, thereby have and make the teacher break away from the pollution of chalk dust, improve the efficient of giving lessons, can doublely do the chalk writing appliance, and advantage easy to carry.
Description of drawings
Fig. 1: the structural representation of a kind of teacher's pointer of the utility model.
Among the figure: 1, telescopic lever, 2, handle, 3, the chalk sleeve, 4, screw, 5, screw mandrel, 6, location-plate, 7, the cap for brush.
Embodiment
Provide embodiment of the present utility model below with reference to accompanying drawing, be used for formation of the present utility model is described further.
A kind of teacher's pointer of present embodiment, form by telescopic lever 1 and handle 2, handle 2 is a cannulated sleeve, be separated into left and right two cylindricality cavitys by dividing plate, telescopic lever 1 stiff end is positioned at the cavity in handle 2 left sides, in the cavity on handle 2 right sides, be provided with chalk sleeve 3, chalk sleeve size and chalk size coupling; Also be provided with screw mandrel 5 on the axis of handle 2 right side cavitys; Screw mandrel 5 left ends are fixed on the dividing plate, establish circular location-plate 6 on screw mandrel 5 right-hand members; Chalk sleeve 3 is installed on the screw mandrel 5 by the screw 4 in the inner sealing end face mesopore, but chalk sleeve 3 and handle 2 clearance fit, wire winding rod rotation in cavity; Circular location-plate 6 cylindricals and chalk sleeve 3 clearance fit; Establish the cap for brush 7 on the chalk sleeve 3 outer openends.
Present embodiment makes the teacher break away from the pollution of chalk dust, improves the efficient of giving lessons, and can doublely do the chalk writing appliance.
Claims (1)
1. teacher's pointer, form by telescopic lever (1) and handle (2), handle (2) is a cannulated sleeve, be separated into left and right two cylindricality cavitys by dividing plate, telescopic lever (1) stiff end is positioned at the cavity in handle (2) left side, it is characterized in that being provided with in the cavity on handle (2) right side chalk sleeve (3); Also be provided with screw mandrel (5) on the axis of handle (2) right side cavity; Screw mandrel (5) left end is fixed on the dividing plate, establishes circular location-plate (6) on screw mandrel (5) right-hand member; Chalk sleeve (3) is installed on the screw mandrel (5) by the screw (4) in the inner sealing end face mesopore, chalk sleeve (3) with handle (2) but clearance fit, wire winding rod rotates in cavity; Circular location-plate (6) cylindrical and chalk sleeve (3) clearance fit; Establish the cap for brush (7) on the outer openend of chalk sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205848940U CN201812398U (en) | 2010-10-20 | 2010-10-20 | Pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205848940U CN201812398U (en) | 2010-10-20 | 2010-10-20 | Pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812398U true CN201812398U (en) | 2011-04-27 |
Family
ID=43895337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205848940U Expired - Fee Related CN201812398U (en) | 2010-10-20 | 2010-10-20 | Pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085536A (en) * | 2011-10-31 | 2013-05-08 | 王建生 | Adjustable chalk holder |
-
2010
- 2010-10-20 CN CN2010205848940U patent/CN201812398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085536A (en) * | 2011-10-31 | 2013-05-08 | 王建生 | Adjustable chalk holder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206657533U (en) | A kind of English letter memorization device | |
| CN201812398U (en) | Pointer | |
| CN204204248U (en) | A kind of Multipurpose teaching indicator | |
| CN203727042U (en) | Multifunctional pen for teaching | |
| CN202837797U (en) | Projection screen for multimedia teaching | |
| CN201989462U (en) | Telescopic pen | |
| CN201970680U (en) | Novel writing board | |
| CN206426721U (en) | Geometry line tool is used in one kind teaching | |
| CN204077185U (en) | Language teaching is facilitated to be with the board of education device of perpendicular wiping board brush | |
| CN203078117U (en) | Blackboard eraser capable of being dismantled | |
| CN109461361A (en) | A kind of automobile adhesive film educational aid | |
| CN204496773U (en) | A kind of primary school English Major board of education | |
| CN215792869U (en) | Teaching drawing device for mathematics of colleges and universities | |
| CN204427141U (en) | A kind of didactic works frame | |
| CN205158663U (en) | English vocabulary text teaching frame | |
| CN201941338U (en) | Novel chalk sleeve | |
| CN203149899U (en) | Line marking device for teaching | |
| CN211555128U (en) | Primary school's english word literacy teaching aid | |
| CN201900859U (en) | Chalk clamp | |
| CN203293777U (en) | Easy-to-adjust marking device for English teaching | |
| CN202711495U (en) | Card rotary disc for Chinese teaching in primary school | |
| CN204037161U (en) | A kind of teaching ruler | |
| CN204196539U (en) | A kind of teaching ruler | |
| CN203575833U (en) | Chalk box capable of saving chalks | |
| CN202337142U (en) | Ruling pen for teachers in primary Chinese teaching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20111020 |