CN102785520B - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN102785520B CN102785520B CN201210286967.1A CN201210286967A CN102785520B CN 102785520 B CN102785520 B CN 102785520B CN 201210286967 A CN201210286967 A CN 201210286967A CN 102785520 B CN102785520 B CN 102785520B
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- CN
- China
- Prior art keywords
- blackboard eraser
- water
- wipe
- water chamber
- water channel
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Abstract
The invention mainly aims at providing a blackboard eraser which can realize a dustproof (environmental-friendly) effect and has a simple structure. In order to achieve the goal, the blackboard eraser comprises a front shell (1). An erasing body installation part is formed on the front surface of the front shell. An erasing body is installed on the erasing body installation part. A rear shell (2) is installed on the back surface of the front shell. A water containing chamber (11) which is used for containing water is formed between the front shell and the rear shell. A water supply passage (12) is arranged at the lower part of the water containing chamber and is provided with an inlet (12a) and an outlet (12b), wherein the inlet is arranged at a position adjacent to the rear shell and the outlet is communicated with the erasing body installation part to supply water to the erasing body.
Description
Technical field
The present invention relates to a kind of blackboard eraser, thereby refer to especially and a kind ofly utilize chalkboard eraser that water soaks sponge etc. except body and can absorb the blackboard eraser that chalk dust is realized environmental protection.
Background technology
A kind of environment-friendly dust-proof eraser is disclosed in Chinese patent document 200810226800.X, this blackboard eraser is fastened and is formed by two housings, on the housing of face side, be provided with installation portion (groove), sponge (wiping body) for erasing chalk word is installed on this installation portion, between two housings, is formed for holding the water chamber of water.Between water chamber and above-mentioned installation portion, there is intercommunicating pore, the switchboard that opens and closes this intercommunicating pore is installed on intercommunicating pore, make this switchboard realize the rear side that the functional unit opening and closing is arranged on blackboard eraser, when user presses this functional unit, switchboard is opened, entering in above-mentioned installation portion and sponge is soaked in water chamber.
Yet, first, the functional unit that button is the same is set on the back side of blackboard eraser, seem very lofty, not attractive in appearance.In addition, this functional unit need to be connected with above-mentioned switchboard, inevitably will pass through water chamber, on the sidewall of water chamber, punches, and this sealing effectiveness to water chamber brings adverse effect.And, because being utilizes functional unit to realize the structure of switch, thus comparatively complicated in structure.
Summary of the invention
In view of this, main purpose of the present invention is, provides a kind of and can realize dustproof (environmental protection) and blackboard eraser simple in structure.
For achieving the above object, blackboard eraser of the present invention is configured to, comprise fore shell, in the front of this fore shell, be formed with and wipe body installation portion, at this, wipe on body installation portion and be provided with and wipe body (can be sponge, wiper etc.), the back side at described fore shell is provided with back cover, forms the water chamber that holds water between described fore shell and back cover.Bottom at water chamber is provided with water channel, and this water channel has entrance and outlet, the contiguous described back cover setting of entrance, outlet with described in wipe that body installation portion is communicated with and can wipe body water supply to described.
Above-mentioned above-below direction is consistent with the vertical direction with respect to ground, and normal conditions user is larger-size length direction the use blackboard eraser consistent with vertical direction that makes blackboard eraser.
Adopt the as above blackboard eraser of structure, because the bottom at water chamber is provided with the water channel supplying water to wiping body, thereby under use state, due to Action of Gravity Field, water in water chamber can be positioned at bottom, now the water in this water chamber can be wiped body and it is soaked via this water channel arrival, thereby realizes dustproof, environmental protection.
In addition, generally speaking, when user does not use blackboard eraser, normally the front of this blackboard eraser or the back side are placed upward in this wise.So, adopt the blackboard eraser of said structure, the back cover setting that enters contiguous rear side due to water channel, outlet with wipe body installation portion and be communicated with (, be arranged on the face side away from back cover), thereby, when not using blackboard eraser (place upward at front or the back side), water in water chamber can not arrive and wipe body installation portion, has prevented that water from flowing out when not using.
Adopt above-mentioned blackboard eraser, compared with prior art, do not need to arrange switch and control supplying water, thus simple in structure and effective, reduced cost.And, not needing setting operation parts, can not impact the overall appearance of blackboard eraser.
The present invention is preferred, and described water chamber is provided with more than two along the vertical direction.So, can make the water wiped in body more even.
The present invention is preferred, and the top of described water chamber is also formed with water channel.So, even if turning blackboard eraser around use, user also can realize wiping body water supply.
The present invention is preferred, and described blackboard eraser is rectangular-shaped, and the length direction of this cuboid is above-below direction.
The present invention is preferred, from front, and described blackboard eraser ovalize, and this oval-shaped long axis direction is above-below direction.
The present invention is preferred, the side surface that the through-thickness of described blackboard eraser forms forms the circular-arc of regulation, so, make user not place blackboard eraser with the state this side surface being connected on table top (lectern etc.), can only or carry on the back supine state and place with front, guarantee that water can not flow out when not using blackboard eraser.
As above,, clashing body can be sponge or wiper or the combination of the two.
Accompanying drawing explanation
Fig. 1 is the sectional view of the blackboard eraser that relates to of the specific embodiment of the invention;
The sectional view of the state of Fig. 2 when representing the use of above-mentioned blackboard eraser, in figure, the length direction of blackboard eraser is consistent with vertical direction;
The sectional view of state when Fig. 3 is not using of the above-mentioned blackboard eraser of expression, in figure, blackboard eraser is heads state;
The opposite side cutaway view of state when Fig. 4 represents the use of above-mentioned blackboard eraser, in figure, blackboard eraser is the supine state of the back of the body.
The specific embodiment
With reference to the accompanying drawings the specific embodiment of the present invention is described in detail.
Fig. 1 is the sectional view of the blackboard eraser that relates to of the specific embodiment of the invention; The sectional view of the state of Fig. 2 when representing the use of above-mentioned blackboard eraser, in figure, the length direction of blackboard eraser is consistent with vertical direction; The sectional view of state when Fig. 3 is not using of the above-mentioned blackboard eraser of expression, in figure, blackboard eraser is heads state; The opposite side cutaway view of state when Fig. 4 represents the use of above-mentioned blackboard eraser, in figure, blackboard eraser is the supine state of the back of the body.
As shown in the figure, blackboard eraser is fastened and forms with back cover 2 by fore shell 1, and it is rectangular-shaped that integral body is.The front of fore shell 1 is formed with mounting groove 3(and wipes body installation portion), cavernous body 4 is installed in mounting groove 3, the surface coverage of cavernous body 4 has wiper 5.Cavernous body 4 and wiper 5 are corresponding to the body of wiping in the present invention.
Between fore shell 1 and back cover 2, form the water chamber 11 that holds water, in present embodiment, water chamber 11 is provided with two along the vertical direction.In the top of water chamber 11 and bottom, be formed with for to cavernous body 4(wiper 5) water channel 12 that supplies water.This water channel 12 has entrance 12a and goes out 12b, and the back cover 2 of the contiguous rear side of entrance 12a arranges, and going out 12b is to form by perforate on the sidewall at mounting groove 3, thereby be communicated with this mounting groove 3, can supply water to cavernous body 4.
As shown in Figure 2, under use state, due to Action of Gravity Field, the water 13 in water chamber 11 must arrive the bottom of water chamber 11, enters in water channel 12, thereby can supply water to cavernous body 4 via the entrance 12a that is arranged on the water channel 12 of bottom.
In addition, as shown in Figure 3, when not using, user can make blackboard eraser face up to place like this, now, be similar to the principle of linker, although the water in water chamber 11 can enter into water channel 12, can not arrive the outlet 12b of water channel 12, can not supply water to cavernous body 4.
Moreover, as shown in Figure 4, when not using, user also can make the blackboard eraser back side place so upward, now, because the entrance 12a of water channel 12 is close to back cover 2 settings of rear side, thereby the water in water chamber 11 at most also can only arrive the lower limb of entrance 12a, can not enter in this entrance 12a, can not enter in water channel 12, certainly can not supply water to cavernous body 4 yet.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
For example, in above-mentioned embodiment, it is rectangular-shaped that blackboard eraser is, yet, be not limited to this, for example, can form ellipsoid shaped, or be only when positive (back side) is seen, to be ellipticity.
In addition, in the above-described embodiment, water channel 12 is formed respectively at top and bottom in water chamber 11, yet, the present invention is not limited to this, so long as form in bottom, can dispense the water channel on top, in addition, also can be on the complete cycle up and down of water chamber, all to form and mounting groove 3(cavernous body 4) water channel that is communicated with (can form a cylinder in water chamber 11, this cylinder be axially perpendicular to front-back side direction, between the outer wall of this cylinder and the inwall of water chamber, form water channel), as long as guarantee blackboard eraser in front or carry on the back water under supine state, can not flow in mounting groove 3.
In addition, generally speaking, when not using, user makes the back side or faces up such placement.Yet, for the purpose of comprehensively, in the present invention, for fear of user, when not using, blackboard eraser mistake is placed, can make the profile of blackboard eraser arrange especially, make blackboard eraser can only place with the back side or heads state (horizontal positioned or cry lying prostrate puts upside down puts).For example, the side surface except the back side and front (that is, the side surface that through-thickness forms) is formed circular-arc, and the size of this circular arc (length and curvature) will guarantee can not realize when user wants standing placement blackboard eraser.In addition, the front of blackboard eraser and the back side also can form circular-arc, as long as can guarantee that blackboard eraser can be with positive or carry on the back supine state and be placed.
Claims (4)
1. a blackboard eraser, comprise fore shell (1), in the front of this fore shell (1), be formed with and wipe body installation portion, at this, wipe on body installation portion and be provided with and wipe body, at the back side of described fore shell (1), back cover (2) is installed, between described fore shell (1) and back cover (2), form the water chamber (11) that holds water, it is characterized in that
In the bottom of water chamber (11), be provided with water channel (12), this water channel (12) has entrance (12a) and outlet (12b), the contiguous described back cover of entrance (12a) (2) arranges, outlet (12b) with described in wipe that body installation portion is communicated with and can wipe body water supply to described; Described water chamber (11) is provided with more than two along the vertical direction; The top of described water chamber (11) is also formed with water channel (12); The side surface that the through-thickness of described blackboard eraser forms forms circular-arc; Under use state, due to Action of Gravity Field, the water in described water chamber (11) can be positioned at bottom, can wipe body and it is soaked via described water channel (12) arrival.
2. blackboard eraser according to claim 1, is characterized in that, described blackboard eraser is rectangular-shaped, and the length direction of this cuboid is above-below direction.
3. blackboard eraser according to claim 1, is characterized in that, from front, and described blackboard eraser ovalize, and this oval-shaped long axis direction is above-below direction.
4. blackboard eraser according to claim 1, is characterized in that, described in to wipe body be sponge or wiper or the combination of the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286967.1A CN102785520B (en) | 2012-08-13 | 2012-08-13 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286967.1A CN102785520B (en) | 2012-08-13 | 2012-08-13 | Blackboard eraser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102785520A CN102785520A (en) | 2012-11-21 |
| CN102785520B true CN102785520B (en) | 2014-09-10 |
Family
ID=47151182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286967.1A Expired - Fee Related CN102785520B (en) | 2012-08-13 | 2012-08-13 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102785520B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264137A (en) * | 2017-04-24 | 2017-10-20 | 张语心 | A kind of dust-proof semiautomatic blackboard eraser device |
| CN114327159B (en) * | 2020-10-10 | 2023-09-19 | Tcl商用信息科技(惠州)有限责任公司 | Erasing device and display system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055098U (en) * | 1989-09-06 | 1990-03-28 | 许光仲 | Moist dustproof blackboard eraser |
| CN1440710A (en) * | 2002-02-28 | 2003-09-10 | 三星光州电子株式会社 | Steam sprayer for vacuum cleaner |
| CN2635388Y (en) * | 2003-08-13 | 2004-08-25 | 施政 | Dustless blackboard eraser |
| CN201291694Y (en) * | 2008-11-17 | 2009-08-19 | 李文康 | Environment protection black board eraser |
| CN201814080U (en) * | 2010-09-08 | 2011-05-04 | 黄山学院 | Brush |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08230392A (en) * | 1995-02-23 | 1996-09-10 | Sakura Seiki Kk | Eraser |
| CN101198266A (en) * | 2005-04-26 | 2008-06-11 | Idt成型控股股份有限公司 | Washing brush |
-
2012
- 2012-08-13 CN CN201210286967.1A patent/CN102785520B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055098U (en) * | 1989-09-06 | 1990-03-28 | 许光仲 | Moist dustproof blackboard eraser |
| CN1440710A (en) * | 2002-02-28 | 2003-09-10 | 三星光州电子株式会社 | Steam sprayer for vacuum cleaner |
| CN2635388Y (en) * | 2003-08-13 | 2004-08-25 | 施政 | Dustless blackboard eraser |
| CN201291694Y (en) * | 2008-11-17 | 2009-08-19 | 李文康 | Environment protection black board eraser |
| CN201814080U (en) * | 2010-09-08 | 2011-05-04 | 黄山学院 | Brush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102785520A (en) | 2012-11-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20200813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |