CN203221802U - Retractable blackboard eraser - Google Patents
Retractable blackboard eraser Download PDFInfo
- Publication number
- CN203221802U CN203221802U CN 201320145846 CN201320145846U CN203221802U CN 203221802 U CN203221802 U CN 203221802U CN 201320145846 CN201320145846 CN 201320145846 CN 201320145846 U CN201320145846 U CN 201320145846U CN 203221802 U CN203221802 U CN 203221802U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- connecting rod
- retractable
- fixed part
- main body
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a retractable blackboard eraser. The retractable blackboard eraser comprises a blackboard eraser main body, and also comprises a retractable part and a fixed part, wherein the fixed part comprises clamping arms, a connecting rod, a tightening rope and fixing blocks, the quantity of the clamping arms is two, the same ends of the two clamping arms are connected with each other through the connecting rod, the other ends of the two clamping arms are provided with the fixing block, the fixing blocks are respectively arranged on two sides of the blackboard eraser main body, and two ends of the tightening rope are respectively arranged on the two clamping arms; the retractable part comprises multiple sections of round bars which are in socket connection with one another, and the small end of the multi-section round bar is provided with a circular connecting hole; and the connecting rod in the fixed part penetrates through the circular connecting hole in the retractable part. The retractable blackboard eraser has the advantages of simplicity in structure, convenience in use, retractability, detachability and the like.
Description
Technical field
The utility model belongs to the realia technical field, especially in regard to a kind of telescopic blackboard eraser.
Background technology
The child that height is not high often reaches the writing on the blackboard of position eminence when erasing the board, add a fixing telescoping handle so have in the prior art to blackboard eraser, but can cause the inconvenience of directly taking blackboard eraser to erase the board with hand again after having added fixing telescoping handle.
The utility model content
The technical problems to be solved in the utility model be propose a kind of simple in structure, easy to use, have telescopic rod and a blackboard eraser that can be for convenience detach.
For solving the problems of the technologies described above, the utility model proposes following technical scheme: a kind of telescopic blackboard eraser, include the blackboard eraser main body, it also includes extensible member and fixed part, described fixed part includes clamp arm, connecting rod, cinch cord and fixed block, described clamp arm has two, the same end of described two clamp arms connects by described connecting rod, the other end of described two clamp arms is provided with described fixed block, described fixed block is separately positioned on the both sides of described blackboard eraser main body, and the two ends of described cinch cord are separately positioned on two clamp arms; Described extensible member includes the round bar of more piece socket, and the little head end of described more piece round bar is provided with circular connecting hole; Connecting rod in the described fixed part passes the circular connecting hole in the described extensible member.
As a kind of preferred version of telescopic blackboard eraser described in the utility model, wherein said fixed block be shaped as strip.
As a kind of preferred version of telescopic blackboard eraser described in the utility model, wherein said connecting rod is circular pin.
As a kind of preferred version of telescopic blackboard eraser described in the utility model, wherein said cinch cord is spring.
The utlity model has following at least beneficial effect:
One, telescopic rod is arranged, made things convenient for the not high child of height can clip the writing on the blackboard of eminence.
Two, simple in structure, a blackboard eraser main body, an expansion link, a clamp arm that is concave shape has just been formed the utility model.
Three, detachable, only need put forth one's strength a little and break the fixed block on the both sides that make a movement off with the fingers and thumb, the main body of blackboard eraser is separated with clamp arm.
Four, easy to use, no matter still directly hold the writing on the blackboard of wiping lower with hand without expansion link with the writing on the blackboard of expansion link wiping eminence and can both easily realize.
Description of drawings
Fig. 1 is the structural representation of scalable blackboard eraser described in the utility model.
The specific embodiment
As shown in Figure 1, telescopic blackboard eraser includes blackboard eraser main body 1, clamp arm 2, connecting rod 3, spring 4, fixed block 5, expansion link 6, circular hole (not shown) in the present embodiment.Wherein an end of the clamp arm 2 on both sides is connected by connecting rod 3, and the other end is connected with two fixed blocks 5 respectively, and connecting rod 3 is circular pin, fixed block 5 be shaped as strip.Fixed block 5 is arranged on two opposed side edges of blackboard eraser main body 1.The two ends of spring 4 are separately positioned on two clamp arms 2, so that two clamp arms 2 draw close mutually, thereby make fixed block 5 can clamp blackboard eraser main body 1.
Expansion link 6 is the round bar of more piece socket, and this locates said socket is to point to fishing rod to successively decrease layer by layer from the major part to microcephaly like that, and the lower layer of microcephaly entangles the major part of last layer, and can tighten, and makes expansion link 6 to extend easily or to shrink.The superiors at expansion link 6 namely are provided with circular connecting hole 61 in the top of a minimum pitch circle bar.Connecting rod 3 passes circular connecting hole 61, makes expansion link 6 be connected with blackboard eraser main body 1 and expansion link 6 can be around connecting rod 3 rotation.
Scalable blackboard eraser described in the utility model both can elongate the writing on the blackboard that expansion link goes to wipe eminence in use, also can pull down expansion link and other fixed part easily in time spent not, directly held the writing on the blackboard that the blackboard eraser main body removes to wipe lower with hand.
The above; it only is the specific embodiment in the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; can understand conversion or the replacement expected; all should be encompassed in of the present utility model comprising within the scope, therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. a telescopic blackboard eraser includes the blackboard eraser main body, it is characterized in that: described blackboard eraser also includes extensible member and fixed part,
Described fixed part includes clamp arm, connecting rod, cinch cord and fixed block, described clamp arm has two, the same end of described two clamp arms connects by described connecting rod, the other end of described two clamp arms is provided with described fixed block, described fixed block is separately positioned on the both sides of described blackboard eraser main body, and the two ends of described cinch cord are separately positioned on two clamp arms;
Described extensible member includes the round bar of more piece socket, and the little head end of described more piece round bar is provided with circular connecting hole;
Connecting rod in the described fixed part passes the circular connecting hole in the described extensible member.
2. telescopic blackboard eraser according to claim 1 is characterized in that: described fixed block be shaped as strip.
3. telescopic blackboard eraser according to claim 1, it is characterized in that: described cinch cord is spring.
4. according to the suffered telescopic blackboard eraser of claim 1, it is characterized in that: described connecting rod is circular pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145846 CN203221802U (en) | 2013-03-27 | 2013-03-27 | Retractable blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145846 CN203221802U (en) | 2013-03-27 | 2013-03-27 | Retractable blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203221802U true CN203221802U (en) | 2013-10-02 |
Family
ID=49248817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145846 Expired - Fee Related CN203221802U (en) | 2013-03-27 | 2013-03-27 | Retractable blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203221802U (en) |
-
2013
- 2013-03-27 CN CN 201320145846 patent/CN203221802U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203221802U (en) | Retractable blackboard eraser | |
| CN203634063U (en) | Antiskid perfumed soap box | |
| CN203611590U (en) | Novel ballpoint pen | |
| CN203045554U (en) | Telescopic vice | |
| CN205009168U (en) | Staple gets needle ware | |
| CN201951118U (en) | Retractable blackboard eraser | |
| CN202079518U (en) | Manipulator | |
| CN201070932Y (en) | Expansion set square | |
| CN201712310U (en) | Novel sign pen | |
| CN204048385U (en) | Multi-function metal Pet umbrella | |
| CN201951032U (en) | Novel sign pen | |
| CN203158122U (en) | Kickstand for bicycle | |
| CN202944080U (en) | Multifunctional pencil | |
| CN201761184U (en) | Pen cap | |
| CN103587290A (en) | Novel writing brush | |
| CN203381775U (en) | Foldable anchor | |
| CN201842359U (en) | Luggage rope | |
| CN201205813Y (en) | Multi-function pen | |
| CN201881705U (en) | Pen cap provided with retractable hook | |
| CN201211763Y (en) | Telescopic writing brush | |
| CN201951089U (en) | Compasses with rotatable pencil core head | |
| CN204191774U (en) | Anti-blow-open umbrella | |
| CN207265009U (en) | A kind of coated Bulb replacing device | |
| CN201499735U (en) | Crank umbrella | |
| CN202136545U (en) | Scratch rake |
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: 20131002 Termination date: 20140327 |