CN204774276U - English teaching is rule and is used blackboard eraser - Google Patents
English teaching is rule and is used blackboard eraser Download PDFInfo
- Publication number
- CN204774276U CN204774276U CN201520502834.2U CN201520502834U CN204774276U CN 204774276 U CN204774276 U CN 204774276U CN 201520502834 U CN201520502834 U CN 201520502834U CN 204774276 U CN204774276 U CN 204774276U
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- CN
- China
- Prior art keywords
- blackboard eraser
- cushion
- tongue
- english
- rubber cushion
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the teaching aid, a have english concurrently and rule and the teaching aid of the board function of blacking is related to, concretely relates to english teaching is rule and is used blackboard eraser, including blackboard eraser main part, clamp plate, elastic sleeve and cushion, be provided with many brush hairs on surface of blackboard eraser main part, hold the board in hand in the blackboard eraser main part, have four mounting grooves on holding the board in hand, have the mounting hole on the lateral wall of mounting groove, the outside extension of bottom surface one end of mounting groove comes out to form to hang the tongue, have the round pin axle on the clamp plate, round pin axle and mounting hole cooperate into the hinge, the cushion bonds on the clamp plate, and another cushion bonds on hanging the tongue, has the arc groove on the cushion, and the arc groove of two cushions is relative, the elastic sleeve overlaps simultaneously on hanging tongue and clamp plate, and chalk clip is between two arc surfaces of cushion. The utility model discloses have that english is rule with the board function of blacking concurrently, four finding activates that once can draw up, work efficiency improve, convenient to use.
Description
Technical field
The utility model belongs to teaching aid technical field, relates to a kind of teaching aid having English line and the function that erases the board concurrently, is specifically related to a kind of English teaching line blackboard eraser.
Background technology
In English teaching, English alphabet specification writing is the basis that student learns English well, teacher is when imparting knowledge to students, often need first to draw equidistant four horizontal lines with chalk and ruler on blackboard, article four, line forms three spaces, i.e. four line three lattice, then write English letter in four line three lattice finished.Traditional once can only draw a line by the method for chalk and ruler setting-out, and four lines at least will divide four pictures, waste time and energy, use inconvenience.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of and has English line and the function that erases the board concurrently, once can draw the English teaching line blackboard eraser of four lines.
The utility model is achieved through the following technical solutions:
A kind of English teaching line blackboard eraser, comprise blackboard eraser main body, pressing plate, resilient sleeve and rubber cushion, a surface is provided with many bristles to blackboard eraser main body, the letter written with chalk on blackboard can be wiped clean by bristle; Blackboard eraser main body there is hand grasping plate, hand grasping plate has four mounting grooves, the sidewall of mounting groove has installing hole; One end, bottom surface of mounting groove extends outward to be formed and hangs tongue; Pressing plate has bearing pin, and bearing pin and installing hole fit in hinge, and pressing plate rotates around hinge;
Rubber cushion is bonded on pressing plate, and another rubber cushion is bonded in be hung on tongue, and rubber cushion has arc groove, and the arc groove of two rubber cushions is relative, and the exterior arc surface of chalk matches; Resilient sleeve is enclosed within simultaneously hangs on tongue and pressing plate, by elastic tensioning, makes two rubber cushions have trend close to each other, and between two arc surfaces chalk being placed on rubber cushion, then chalk is tightly clamped.
In use, hand-held hand grasping plate can be used for erasing the board, identical with the function of ordinary blackboard eraser.
Chalk on all pressing from both sides in the arc groove of four pairs of rubber cushions, the length that chalk is exposed is substantially identical, hand-held hand grasping plate, four chalks is contacted with blackboard simultaneously, blackboard is firmly drawn, then draws four chalk lines simultaneously, namely write four line three lattice of English.
The manufactured materials of above-described resilient sleeve is polyurethane.
The manufactured materials of above-described rubber cushion is polyurethane or rubber.
The beneficial effects of the utility model: have concurrently English line and the function that erases the board, once can draw four lines, operating efficiency improve, easy to use.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment;
Fig. 2 is the front view of the utility model embodiment;
Fig. 3 is the sectional view along A-A line in Fig. 2;
Fig. 4 is the three-dimensional structure schematic diagram of blackboard eraser main body 1;
Fig. 5 is the three-dimensional structure schematic diagram of pressing plate 3;
Shown in figure: 1. blackboard eraser main body; 11. mounting grooves; 12. installing holes; 13. hand grasping plates; 2. bristle; 3. pressing plate; 31. bearing pins; 4. chalk; 5. resilient sleeve; 6. rubber cushion; 7. hang tongue.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment: see Fig. 1 to Fig. 5.
A kind of English teaching line blackboard eraser, comprise blackboard eraser main body 1, pressing plate 3, resilient sleeve 5 and rubber cushion 6,1 one surfaces are provided with many bristles 2 to blackboard eraser main body, the letter written with chalk on blackboard can be wiped clean by bristle 2; Blackboard eraser main body 1 hand grasping plate 13 there are four mounting grooves 11, the sidewall of mounting groove 11 have installing hole 12; One end, bottom surface of mounting groove 11 extends outward to be formed and hangs tongue 7; Pressing plate 3 has bearing pin 31, bearing pin 31 and installing hole 12 fit in hinge, and pressing plate 3 rotates around hinge;
Rubber cushion 6 is bonded on pressing plate 3, and another rubber cushion 6 is bonded in be hung on tongue 7, and rubber cushion 6 has arc groove, and the arc groove of two rubber cushions is relative, and the exterior arc surface of chalk 4 matches; Resilient sleeve 5 is enclosed within simultaneously hangs on tongue 7 and pressing plate 3, by elastic tensioning, makes two rubber cushions 6 have trend close to each other, and between two arc surfaces chalk 5 being placed on rubber cushion 6, then chalk 5 is tightly clamped.If rightmost in Fig. 1 one group is the situation firmly making pressing plate 3 rotate.
In use, hand-held hand grasping plate 13 can be used for erasing the board, identical with the function of ordinary blackboard eraser.
Chalk 4 on all pressing from both sides in the arc groove of four pairs of rubber cushions 6, the length that chalk 4 is exposed is substantially identical, hand-held hand grasping plate 13, four chalks 4 is contacted with blackboard simultaneously, blackboard is firmly drawn, then draws four chalk lines simultaneously, namely write four line three lattice of English.
The manufactured materials of above-described resilient sleeve 5 is polyurethane.
The manufactured materials of above-described rubber cushion 6 is polyurethane or rubber.
The beneficial effect of the present embodiment: have concurrently English line and the function that erases the board, once can draw four lines, operating efficiency improve, easy to use.
Claims (3)
1. an English teaching line blackboard eraser, is characterized in that, comprises blackboard eraser main body, pressing plate, resilient sleeve and rubber cushion, and a surface is provided with many bristles to blackboard eraser main body; Blackboard eraser main body there is hand grasping plate, hand grasping plate has four mounting grooves, the sidewall of mounting groove has installing hole; One end, bottom surface of mounting groove extends outward to be formed and hangs tongue; Pressing plate has bearing pin, and bearing pin and installing hole fit in hinge; Rubber cushion is bonded on pressing plate, and another rubber cushion is bonded in be hung on tongue, and rubber cushion has arc groove, and the arc groove of two rubber cushions is relative; Resilient sleeve is enclosed within simultaneously hangs on tongue and pressing plate, and chalk clamp is between two arc surfaces of rubber cushion.
2. English teaching line blackboard eraser according to claim 1, is characterized in that the manufactured materials of resilient sleeve is polyurethane.
3. English teaching line blackboard eraser according to claim 1 and 2, is characterized in that the manufactured materials of rubber cushion is polyurethane or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520502834.2U CN204774276U (en) | 2015-07-14 | 2015-07-14 | English teaching is rule and is used blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520502834.2U CN204774276U (en) | 2015-07-14 | 2015-07-14 | English teaching is rule and is used blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204774276U true CN204774276U (en) | 2015-11-18 |
Family
ID=54514393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520502834.2U Expired - Fee Related CN204774276U (en) | 2015-07-14 | 2015-07-14 | English teaching is rule and is used blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204774276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608776A (en) * | 2018-05-08 | 2018-10-02 | 牡丹江师范学院 | A kind of college English Teaching assistant teaching aid |
| CN109484066A (en) * | 2018-10-31 | 2019-03-19 | 邯郸学院 | Blackboard eraser is used in a kind of scribing line of English teaching |
-
2015
- 2015-07-14 CN CN201520502834.2U patent/CN204774276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608776A (en) * | 2018-05-08 | 2018-10-02 | 牡丹江师范学院 | A kind of college English Teaching assistant teaching aid |
| CN109484066A (en) * | 2018-10-31 | 2019-03-19 | 邯郸学院 | Blackboard eraser is used in a kind of scribing line of English teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190714 |