CN204196509U - A kind of blank - Google Patents
A kind of blank Download PDFInfo
- Publication number
- CN204196509U CN204196509U CN201420593326.5U CN201420593326U CN204196509U CN 204196509 U CN204196509 U CN 204196509U CN 201420593326 U CN201420593326 U CN 201420593326U CN 204196509 U CN204196509 U CN 204196509U
- Authority
- CN
- China
- Prior art keywords
- blank
- frame
- mounting groove
- eraser
- whiteboard 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.)
- Withdrawn - After Issue
Links
Abstract
A kind of blank, comprises blank main body, four frames; It is characterized in that: in frame, be provided with blank mounting groove, blackboard eraser mounting groove; Blank main body four edge is installed in the blank mounting groove of frame; Blank main body front is provided with whiteboard eraser; Two ends, whiteboard eraser left and right are positioned at the blackboard eraser mounting groove of left and right frame, are provided with holddown spring between the whiteboard eraser back side and left and right frame, and holddown spring connects the sliding shoe moved up and down along blackboard eraser mounting groove; Whiteboard eraser connects stay cord; Stay cord is passed down through lower frame after walking around top fixed pulley, below fixed pulley, intermediate pulley, and connects leader's block; In the fixed pulley installation shaft of top, cover has cylindroid helical-coil torsion spring, and one end of cylindroid helical-coil torsion spring is taken turns with this pulley and is connected, and the other end is relative with upper side frame fixing.This blank carries whiteboard eraser, and wiping is simple and convenient, and whiteboard eraser is when wiping works, and runs smooth and easy, can not be stuck, and can automatically reset.
Description
Technical field
The utility model relates to a kind of blank, specifically for carrying out the blank write.
Background technology
At present, blank is all do not arrange whiteboard eraser, and whiteboard eraser is arranged separately, and whiteboard eraser is placed inconvenient, also will place separately, easy like this with in can not find.
Utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of blank, and be set to one with whiteboard eraser, wiping operation is simple and convenient.
For solving the problem, the utility model by the following technical solutions: a kind of blank, comprises blank main body, four frames; Also include support; Described four frames are designated as upper side frame, lower frame, left frame, left frame respectively; It is characterized in that: in described frame, be provided with blank mounting groove, blackboard eraser mounting groove; Four edges of blank main body are installed in the blank mounting groove of four frames respectively; The front of blank main body is provided with whiteboard eraser; The length of whiteboard eraser left and right directions is greater than the length of blank main body left and right directions, the two ends, left and right of whiteboard eraser lay respectively in the blackboard eraser mounting groove of left frame, left frame, and be provided with between the inwall of the back side at the two ends, left and right of whiteboard eraser and left frame, left frame holddown spring flexible along the longitudinal direction and with holddown spring link together and the sliding shoe that can move up and down along described blackboard eraser mounting groove; The two ends, left and right of whiteboard eraser connect a stay cord respectively; Fixed pulley above on top arranging one respectively in two ends, frame left and right, walk around fixed pulley below under described two stay cords top fixed pulley of walking around a correspondence is respectively backward more respectively and extend to the middle on edge, blank main body base and be passed down through lower frame after walking around an intermediate pulley respectively in the horizontal direction, and jointly connecting leader's block in the below of lower frame; The installation shaft of described top fixed pulley is equipped with cylindroid helical-coil torsion spring, and one end of described cylindroid helical-coil torsion spring is connected with described top fixed pulley, and the other end is relative with upper side frame fixing.
As further technical scheme: be provided with the resilience secondary spring that can produce elastic deformation along the vertical direction in the blackboard eraser mounting groove of described upper side frame.
Further: in the blackboard eraser mounting groove of described left frame, in the blackboard eraser mounting groove of left frame, a guide rail to be set respectively;
Described guide rail is made up of multiple bearing, multiple bearing is fixed in described blackboard eraser mounting groove by installation shaft, the axis of described multiple bearing and described blank body normal, and being arranged in order along the vertical direction of being parallel to each other, be provided with gap between adjacent bearing;
The described end face of whiteboard eraser left end contacts with the guide rail in left frame and coordinates;
The described end face of whiteboard eraser right-hand member contacts with the guide rail in left frame and coordinates.
Further technical scheme: the bottom of described support is provided with equilibrate counterweight.
The beneficial effects of the utility model are: this blank carries whiteboard eraser, and wiping is simple and convenient, and whiteboard eraser is when wiping works, and run smooth and easy, can not be stuck, and can automatically reset.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the partial sectional view at the A-A place in Fig. 1;
Fig. 3 is another embodiment spacing before and after carrying out whiteboard eraser;
Fig. 4 is another embodiment spacing before and after carrying out whiteboard eraser;
Fig. 5 is the mounting structure schematic diagram of cylindroid helical-coil torsion spring;
In figure: 1 blank main body, 2 frames, 21 upper side frames, 22 lower frames, 23 left frames, 24 left frames, 25 blank mounting grooves, 26 blackboard eraser mounting grooves, 3 supports, 4 whiteboard erasers, 5 holddown springs, 6 sliding shoes, 7 stay cords, fixed pulley above in the of 8,81 installation shaft, 82 cylindroid helical-coil torsion springs, fixed pulley below 9,10 intermediate pulley, 11 handle blocks, 12 resilience secondary springs, 13 guide rails, 131 bearings, 14 equilibrate counterweights, 15 press strips, 16 projections, 17 detents.
Detailed description of the invention
As shown in Figure 1, this blank comprises blank main body 1, four frames 2; Also include support 3.
Described four frames 2 are designated as upper side frame 21, lower frame 22, left frame 23, left frame 24 respectively.
Its special feature is, is provided with blank mounting groove 25, blackboard eraser mounting groove 26 in described frame 2.
Four edges of blank main body 1 are installed in the blank mounting groove 25 of four frames 2 respectively.
The front of blank main body 1 is provided with whiteboard eraser 4; The length of whiteboard eraser 4 left and right directions is greater than the length of blank main body 1 left and right directions, the two ends, left and right of whiteboard eraser 4 lay respectively in the blackboard eraser mounting groove 26 of left frame 23, left frame 24, and be provided with between the inwall of the back side at the two ends, left and right of whiteboard eraser 4 and left frame 23, left frame 24 holddown spring 5 flexible along the longitudinal direction and with holddown spring 5 link together and the sliding shoe 6 that can move up and down along described blackboard eraser mounting groove 26.
Like this when whiteboard eraser about 4 runs, can ensure that it is close to the surface of blank main body 1, ensure its wiping effect.If after using long-time, whiteboard eraser 4 weares and teares, this wear extent of compensation that holddown spring 5 can be real-time, to ensure that whiteboard eraser 4 is close to the surface of blank main body 1 all the time, thus ensures wiping effect.
The two ends, left and right of whiteboard eraser 4 connect a stay cord 7 respectively; Fixed pulley 8 above on top arranging one respectively in frame about 21 two ends, walk around fixed pulley 9 below under described two stay cords 7 top fixed pulley 8 of walking around a correspondence is respectively backward more respectively and extend to the middle on edge, blank main body 1 base and be passed down through lower frame 22 after walking around an intermediate pulley 10 respectively in the horizontal direction, and jointly connecting leader's block 11 in the below of lower frame 22.
Two stay cords are set and can ensure that whiteboard eraser can not be drawn partially, stuck phenomenon can not occur.
The installation shaft 81 of described top fixed pulley 8 is equipped with cylindroid helical-coil torsion spring 82, and one end of described cylindroid helical-coil torsion spring 82 is connected with described top fixed pulley 8, and the other end is relative with upper side frame 21 fixing, as shown in Figure 5.When stay cord 7 pulls whiteboard eraser 4 to rise, top fixed pulley 8 rotates, and cylindroid helical-coil torsion spring 82 twists distortion.After operator unclamps stay cord 7, drive top fixed pulley 8 to rotate backward under cylindroid helical-coil torsion spring 82 elastic reaction, whiteboard eraser 4 drop to lower frame 22 automatically.
Further improvement: be provided with the resilience secondary spring 12 that can produce elastic deformation along the vertical direction in the blackboard eraser mounting groove of described upper side frame 21.
Whiteboard eraser 4 rises to upper side frame 21 place, extruding resilience secondary spring 12, and after unclamping stay cord 7, resilience secondary spring 12 can apply downward power to whiteboard eraser 4, and auxiliary whiteboard eraser 4 moves down and is returned to lower frame 22.
Further improvement: in the blackboard eraser mounting groove of described left frame 23, in the blackboard eraser mounting groove of left frame 24, a guide rail 13 is set respectively.Guide rail 13 described in this is made up of multiple bearing 131, multiple bearing 131 is fixed in described blackboard eraser mounting groove 26 by installation shaft, the axis of described multiple bearing 131 is vertical with blank main body 1, and being arranged in order along the vertical direction of being parallel to each other of multiple bearing 131, be provided with gap between adjacent bearing 131.The end face of whiteboard eraser 4 left end contacts with the guide rail 13 in left frame 23 and coordinates.The end face of whiteboard eraser 4 right-hand member contacts with the guide rail 13 in left frame 24 and coordinates.
Guide rail can play guide effect to the operation of whiteboard eraser, and the path wear that can form with bearing is little, also reduces the generation of stuck phenomenon further.
Further technical scheme: the bottom of described support 3 is provided with equilibrate counterweight 14, this equilibrate counterweight 14 can ensure that blank is not easy to skew.
The utility model is not limited only to above-described embodiment.
Such as: whiteboard eraser compresses the structure of blank main body, can certainly adopt other modes, as shown in Figure 3,4, the mode of press strip 15 is adopted to carry out location, front and back to whiteboard eraser in Fig. 3, to ensure its wiping effect, but this can not to wearing and tearing carry out enforcement compensate, long-time result of use is bad.Figure 4 shows that and arrange a circle projection on the periphery of bearing 131, on the end face of whiteboard eraser, be provided with detent accordingly, this mode complex structure, production cost is high, nor can compensate wearing and tearing.So preferred mode shown in Fig. 2.
Claims (4)
1. a blank, comprises blank main body, four frames; Also include support; Described four frames are designated as upper side frame, lower frame, left frame, left frame respectively; It is characterized in that: in described frame, be provided with blank mounting groove, blackboard eraser mounting groove; Four edges of blank main body are installed in the blank mounting groove of four frames respectively; The front of blank main body is provided with whiteboard eraser; The length of whiteboard eraser left and right directions is greater than the length of blank main body left and right directions, the two ends, left and right of whiteboard eraser lay respectively in the blackboard eraser mounting groove of left frame, left frame, and be provided with between the inwall of the back side at the two ends, left and right of whiteboard eraser and left frame, left frame holddown spring flexible along the longitudinal direction and with holddown spring link together and the sliding shoe that can move up and down along described blackboard eraser mounting groove; The two ends, left and right of whiteboard eraser connect a stay cord respectively; Fixed pulley above on top arranging one respectively in two ends, frame left and right, walk around fixed pulley below under described two stay cords top fixed pulley of walking around a correspondence is respectively backward more respectively and extend to the middle on edge, blank main body base and be passed down through lower frame after walking around an intermediate pulley respectively in the horizontal direction, and jointly connecting leader's block in the below of lower frame; The installation shaft of described top fixed pulley is equipped with cylindroid helical-coil torsion spring, and one end of described cylindroid helical-coil torsion spring is connected with described top fixed pulley, and the other end is relative with upper side frame fixing.
2. a kind of blank according to claim 1, is characterized in that: be provided with the resilience secondary spring that can produce elastic deformation along the vertical direction in the blackboard eraser mounting groove of described upper side frame.
3. a kind of blank according to claim 1, is characterized in that: in the blackboard eraser mounting groove of described left frame, arrange a guide rail respectively in the blackboard eraser mounting groove of left frame;
Described guide rail is made up of multiple bearing, multiple bearing is fixed in described blackboard eraser mounting groove by installation shaft, the axis of described multiple bearing and described blank body normal, and being arranged in order along the vertical direction of being parallel to each other, be provided with gap between adjacent bearing;
The described end face of whiteboard eraser left end contacts with the guide rail in left frame and coordinates;
The described end face of whiteboard eraser right-hand member contacts with the guide rail in left frame and coordinates.
4. any one blank according to claim 1-3, is characterized in that: the bottom of described support is provided with equilibrate counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593326.5U CN204196509U (en) | 2014-10-14 | 2014-10-14 | A kind of blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593326.5U CN204196509U (en) | 2014-10-14 | 2014-10-14 | A kind of blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196509U true CN204196509U (en) | 2015-03-11 |
Family
ID=52654504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593326.5U Withdrawn - After Issue CN204196509U (en) | 2014-10-14 | 2014-10-14 | A kind of blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260582A (en) * | 2014-10-14 | 2015-01-07 | 辛昊 | White board |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
-
2014
- 2014-10-14 CN CN201420593326.5U patent/CN204196509U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260582A (en) * | 2014-10-14 | 2015-01-07 | 辛昊 | White board |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150311 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |