CN204687668U - Blackboard eraser fingerstall - Google Patents
Blackboard eraser fingerstall Download PDFInfo
- Publication number
- CN204687668U CN204687668U CN201520272687.4U CN201520272687U CN204687668U CN 204687668 U CN204687668 U CN 204687668U CN 201520272687 U CN201520272687 U CN 201520272687U CN 204687668 U CN204687668 U CN 204687668U
- Authority
- CN
- China
- Prior art keywords
- human body
- arc
- finger ring
- friction piece
- blackboard eraser
- 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
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- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
Blackboard eraser fingerstall, comprise the finger ring with opening, finger ring is enclosed within the middle part of human body thumb second phalanges, it is characterized in that: finger ring dorsad aperture position extend downwardly into reach corresponding to human body thumb root formed jugularia, jugularia continues and one is applicable to the arc of human body palm great thenar shape, and described arc, from expanding gradually in human body thumb root, is reaching maximum corresponding to human body first metacarpal bone center, then narrow contracting gradually, is reaching minimum corresponding to human body first metacarpal bone root; One rubber band is set bottom at arc, the arc corresponding to human body palm great thenar centre of the palm one side arranges friction piece.Further, friction piece is bristle.Further, friction piece is scrim cloth.Compared with prior art, the utility model structure is simple, wants to wipe and just wipes.
Description
Technical field
The utility model relates to teaching aid technical field, relates to a kind of blackboard eraser fingerstall particularly.
Background technology
Each teacher attends class and needs writing on the blackboard, has wrongly write word sometimes, has little time also to be inconvenient to take the blackboard eraser on lectern, just wipes with hand, do not gone up a class, be always stained with chalk dust on hand, not only opponent damages to some extent, and not only freeze hand in winter, but also need to go to wash one's hands, be very trouble.
Summary of the invention
For this reason, the purpose of this utility model to address this problem, and provides the blackboard eraser fingerstall that a kind of structure is simple, want to wipe just wiping.
The utility model provides following technical scheme:
Blackboard eraser fingerstall, comprise the finger ring 1 with opening, finger ring 1 is enclosed within the middle part of human body thumb second phalanges, it is characterized in that: finger ring 1 dorsad aperture position extend downwardly into reach corresponding to human body thumb root formed jugularia 5, jugularia 5 continues and one is applicable to the arc 2 of human body palm great thenar shape, described arc 2 is from expanding gradually in human body thumb root, reaching maximum corresponding to human body first metacarpal bone center, then narrow contracting gradually, is reaching minimum corresponding to human body first metacarpal bone root; A rubber band 4 is set bottom at arc 2, the arc 2 corresponding to human body palm great thenar centre of the palm one side arranges friction piece 3.
Further, friction piece 3 is bristle.
Further, friction piece 3 is scrim cloth.
Compared with prior art, the utility model structure is simple, wants to wipe and just wipes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the rearview of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Detailed description of the invention
Below, with specific embodiments and the drawings is described in detail the utility model.
Blackboard eraser fingerstall, comprise the finger ring 1 with opening, finger ring 1 is enclosed within the middle part of human body thumb second phalanges, finger ring 1 dorsad aperture position extend downwardly into reach corresponding to human body thumb root formed jugularia 5, jugularia 5 continues and one is applicable to the arc 2 of human body palm great thenar shape, and described arc 2, from expanding gradually in human body thumb root, is reaching maximum corresponding to human body first metacarpal bone center, then narrow contracting gradually, is reaching minimum corresponding to human body first metacarpal bone root; Arrange a rubber band 4 bottom at arc 2, the arc 2 corresponding to human body palm great thenar centre of the palm one side arranges friction piece 3, and friction piece 3 is bristle.
First rubber band 4 is nested with in wrist during use, again finger ring 1 is enclosed within the middle part of right hand thumb second phalanges, finger ring 1 can adapt to the thickness of different people thumb with opening, fixed by two ends, arc 2 is attached on the palm great thenar of human body firmly, when wrongly writing word, directly directly wipe just passable, very convenient with bristle.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. blackboard eraser fingerstall, comprise the finger ring (1) with opening, finger ring (1) is enclosed within the middle part of human body thumb second phalanges, it is characterized in that: finger ring (1) dorsad aperture position extend downwardly into reach corresponding to human body thumb root formed jugularia (5), jugularia (5) continues and one is applicable to the arc (2) of human body palm great thenar shape, described arc (2) is from expanding gradually in human body thumb root, reaching maximum corresponding to human body first metacarpal bone center, then narrow contracting gradually, is reaching minimum corresponding to human body first metacarpal bone root; A rubber band (4) is set bottom at arc (2), the arc (2) corresponding to human body palm great thenar centre of the palm one side arranges friction piece (3).
2. blackboard eraser fingerstall according to claim 1, is characterized in that: friction piece (3) is bristle.
3. blackboard eraser fingerstall according to claim 1, is characterized in that: friction piece (3) is scrim cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272687.4U CN204687668U (en) | 2015-04-30 | 2015-04-30 | Blackboard eraser fingerstall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272687.4U CN204687668U (en) | 2015-04-30 | 2015-04-30 | Blackboard eraser fingerstall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204687668U true CN204687668U (en) | 2015-10-07 |
Family
ID=54228000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520272687.4U Expired - Fee Related CN204687668U (en) | 2015-04-30 | 2015-04-30 | Blackboard eraser fingerstall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204687668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158527A (en) * | 2017-05-14 | 2017-09-15 | 内蒙古民族大学 | A kind of ergonomics pediatric nursing infusion device |
-
2015
- 2015-04-30 CN CN201520272687.4U patent/CN204687668U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158527A (en) * | 2017-05-14 | 2017-09-15 | 内蒙古民族大学 | A kind of ergonomics pediatric nursing infusion device |
| CN107158527B (en) * | 2017-05-14 | 2023-08-01 | 内蒙古民族大学 | Ergonomic pediatric nursing infusion device |
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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 |
Granted publication date: 20151007 Termination date: 20160430 |