CN204820818U - Dustproof blackboard eraser with time display - Google Patents
Dustproof blackboard eraser with time display Download PDFInfo
- Publication number
- CN204820818U CN204820818U CN201520528430.0U CN201520528430U CN204820818U CN 204820818 U CN204820818 U CN 204820818U CN 201520528430 U CN201520528430 U CN 201520528430U CN 204820818 U CN204820818 U CN 204820818U
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- CN
- China
- Prior art keywords
- blackboard eraser
- casing base
- pressing plate
- water bag
- perforate
- 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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Abstract
The utility model relates to a dustproof blackboard eraser with time display, it cup joints and drives intraoral clamp plate, the fixed sponge that sets up tip the clamp plate outside, water bag, setting at the electronic clock at blackboard eraser casing seat back and push the water clock device at blackboard eraser casing seat to have open -ended blackboard eraser casing seat, activity including the one side, blackboard eraser casing seat inside be provided with the baffle, form the appearance chamber that is used for installing water bag between the diapire of baffle and blackboard eraser casing seat, the middle part and the upper and lower both sides of baffle are provided with first trompil and second trompil respectively, first trompil on be provided with spacing turn -ups. A dustproof blackboard eraser with time display, its is rational in infrastructure, has the time display function, and is dustproof effectual.
Description
Technical field
The utility model relates to teaching aid field, especially a kind of dust-proof blackboard eraser with time showing.
Background technology
Blackboard is the indispensable educational aid of conventional teaching occasion, and blackboard eraser erases the board, and the result caused is that chalk produces a large amount of dust, descend slowly and lightly on the body of people, be scattered on the ground, most importantly writer can suck respiratory system the dust of chalk, produces great harm to the respiratory system of human body.And teaching is attended class in process, arbitrarily should not check mobile phone time, be not easy to grasp instructional blocks of time rhythm, classes are over to cause delay.
Summary of the invention
The technical problems to be solved in the utility model is: in order to overcome above-mentioned middle Problems existing, provide a kind of dust-proof blackboard eraser with time showing, it is rational in infrastructure, has time display function, good dustproof effect.
The utility model solves the technical scheme that its technical problem adopts: a kind of dust-proof blackboard eraser with time showing, comprise the blackboard eraser casing base that one side has opening, be actively socketed on the pressing plate in blackboard eraser casing base opening, be fixedly installed on the sponge of pressing plate outer end, flexible water bag, be arranged on electronic clock and the extruding dripping and leaking device at blackboard eraser casing base back, described blackboard eraser casing base inside is provided with dividing plate, the cavity volume for installing flexible water bag is formed between the diapire of dividing plate and blackboard eraser casing base, middle part and the upper and lower both sides of dividing plate are respectively arranged with the first perforate and the second perforate, the first described perforate is provided with spacing flange,
Described crowded water clock pressure device comprises and is fixedly installed on upper and lower both sides, pressing plate back respectively and is each passed through a pair depression bar of the second perforate, the first Compress Spring be enclosed within depression bar, is screwed in depression bar end and the briquetting mutually abutted with flexible water bag, is arranged in the middle part of flexible water bag and through the drip-proof check valve on communicating pipe of the first perforate and the communicating pipe of being arranged on; The two ends of described first Compress Spring mutually abut with pressing plate and dividing plate respectively; One end and the flexible water bag of described communicating pipe are interconnected, and the other end is communicated with sponge through the middle part of pressing plate;
Described drip-proof check valve comprises and is arranged on valve body front end and the valve port be interconnected communicating pipe, is arranged in the middle part of valve body with valve port mutual adaptive spool, is arranged on the second Compress Spring of spool rear end and is fixedly installed on valve body for fixing the support of the second Compress Spring.
As preferred scheme, the openend of described blackboard eraser casing base is provided with the spacing projection seat mutually abutted with pressing plate.
As preferred scheme, between described blackboard eraser casing base and pressing plate contact surface, be respectively arranged with mutually adaptive slideway.
As preferred scheme, the end face of described pressing plate is provided with some back-offs for fixing sponge.
As preferred scheme, the top of described flexible water bag is provided with water inlet; Described blackboard eraser casing base is provided with three perforate mutually corresponding with water inlet, and the 3rd perforate is provided with capping.
As preferred scheme, the base plate of described blackboard eraser casing base is that active buckle is on blackboard eraser casing base.
As preferred scheme, described flexible water bag is that rubber is made.
The beneficial effects of the utility model are: a kind of dust-proof blackboard eraser with time showing, and the back of blackboard eraser casing base is provided with electronic clock, has time display function; Blackboard eraser casing base inside is provided with flexible water bag, by extruding force when using blackboard eraser by water water conservancy diversion to sponge and drip-proof check valve, when preventing flexible water bag not to be squeezed, lasting water clock, easy to use simple and easy, good dustproof effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of dust-proof blackboard eraser overall structure schematic diagram with time showing described in the utility model;
Fig. 2 is a kind of drip-proof check valve structural representation with the dust-proof blackboard eraser of time showing described in the utility model.
Accompanying drawing acceptance of the bid note is described below: 1, blackboard eraser casing base, and 11, dividing plate, the 12, first perforate, 121, spacing flange, 13, the second perforate, 14, spacing projection seat, 15, slideway, 2, pressing plate, 21, back-off, 3, sponge, 4, flexible water bag, 41, communicating pipe, 42, drip-proof check valve, 43, valve port, 44, spool, the 45, second Compress Spring, 46, support, 47, water inlet, 471, capping, 5, electronic clock, 6, depression bar, the 61, first Compress Spring, 62, briquetting.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Fig. 1, a kind of dust-proof blackboard eraser with time showing shown in 2, comprise the blackboard eraser casing base 1 that one side has opening, be actively socketed on the pressing plate 2 in blackboard eraser casing base 1 opening, be fixedly installed on the sponge 3 of pressing plate 2 outer end, flexible water bag 4, be arranged on electronic clock 5 and the extruding dripping and leaking device at blackboard eraser casing base 1 back, described blackboard eraser casing base 1 inside is provided with dividing plate 11, the cavity volume for installing flexible water bag 4 is formed between the diapire of dividing plate 11 and blackboard eraser casing base 1, middle part and the upper and lower both sides of dividing plate 11 are respectively arranged with the first perforate 12 and the second perforate 13, the first described perforate 12 is provided with spacing flange 121, described crowded water clock pressure device comprises and is fixedly installed on upper and lower both sides, pressing plate 2 back respectively and is each passed through a pair depression bar 6 of the second perforate 13, the first Compress Spring 61 be enclosed within depression bar 6, is screwed in depression bar 6 end and the briquetting 62 mutually abutted with flexible water bag 4, is arranged in the middle part of flexible water bag 4 and through communicating pipe 41 of the first perforate 12 and the drip-proof check valve 42 that is arranged on communicating pipe 41, the two ends of described first Compress Spring 61 mutually abut with pressing plate 2 and dividing plate 11 respectively, one end and the flexible water bag 4 of described communicating pipe 41 are interconnected, and the other end is communicated with sponge 3 through the middle part of pressing plate 2,
Described drip-proof check valve 42 comprises and is arranged on valve body front end and the valve port 43 be interconnected communicating pipe 41, is arranged in the middle part of valve body with valve port 43 mutual adaptive spool 44, is arranged on the second Compress Spring 45 of spool 44 rear end and is fixedly installed on valve body for fixing the support 46 of the second Compress Spring 42.
The openend of described blackboard eraser casing base 1 is provided with the spacing projection seat 14 mutually abutted with pressing plate 2.Mutually adaptive slideway 15 is respectively arranged with between described blackboard eraser casing base 1 and pressing plate 2 contact surface.The end face of described pressing plate 2 is provided with some back-offs 21 for fixing sponge 3.The top of described flexible water bag 4 is provided with water inlet 47; Described blackboard eraser casing base 1 is provided with three perforate mutually corresponding with water inlet 47, and the 3rd perforate is provided with capping 471.The base plate of described blackboard eraser casing base 1 is that active buckle is on blackboard eraser casing base 1.Described flexible water bag 4 is that rubber is made.
A kind of dust-proof blackboard eraser with time showing described in the utility model, the back of blackboard eraser casing base 1 is provided with electronic clock 5, has time display function; Blackboard eraser casing base 1 inside is provided with flexible water bag 4, by extruding force when using blackboard eraser by water water conservancy diversion to sponge 3 and drip-proof check valve 42, when preventing flexible water bag 4 not to be squeezed, lasting water clock, easy to use simple and easy, good dustproof effect.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.
Claims (7)
1. one kind has the dust-proof blackboard eraser of time showing, it is characterized in that: comprise the blackboard eraser casing base (1) that one side has opening, be actively socketed on the pressing plate (2) in blackboard eraser casing base (1) opening, be fixedly installed on the sponge (3) of pressing plate (2) outer end, flexible water bag (4), be arranged on electronic clock (5) and the extruding dripping and leaking device at blackboard eraser casing base (1) back, described blackboard eraser casing base (1) inside is provided with dividing plate (11), the cavity volume for installing flexible water bag (4) is formed between the diapire of dividing plate (11) and blackboard eraser casing base (1), middle part and the upper and lower both sides of dividing plate (11) are respectively arranged with the first perforate (12) and the second perforate (13), described the first perforate (12) is provided with spacing flange (121),
Described extruding dripping and leaking device comprises and is fixedly installed on upper and lower both sides, pressing plate (2) back respectively and a pair depression bar (6) being each passed through the second perforate (13), be enclosed within the first Compress Spring (61) on depression bar (6), be screwed in depression bar (6) end and the briquetting (62) mutually abutted with flexible water bag (4), be arranged on flexible water bag (4) middle part and the communicating pipe (41) of passing the first perforate (12) and the drip-proof check valve (42) be arranged on communicating pipe (41), the two ends of described first Compress Spring (61) mutually abut with pressing plate (2) and dividing plate (11) respectively, one end and the flexible water bag (4) of described communicating pipe (41) are interconnected, and the other end is communicated with sponge (3) through the middle part of pressing plate (2),
Described drip-proof check valve (42) comprises and is arranged on valve body front end and the valve port (43) be interconnected communicating pipe (41), is arranged in the middle part of valve body with valve port (43) mutual adaptive spool (44), is arranged on second Compress Spring (45) of spool (44) rear end and is fixedly installed on valve body for fixing the support (46) of the second Compress Spring (42).
2. a kind of dust-proof blackboard eraser with time showing according to claim 1, is characterized in that: the openend of described blackboard eraser casing base (1) is provided with the spacing projection seat (14) mutually abutted with pressing plate (2).
3. a kind of dust-proof blackboard eraser with time showing according to claim 1 and 2, is characterized in that: be respectively arranged with mutually adaptive slideway (15) between described blackboard eraser casing base (1) and pressing plate (2) contact surface.
4. a kind of dust-proof blackboard eraser with time showing according to claim 1, is characterized in that: the end face of described pressing plate (2) is provided with some back-offs for fixing sponge (3) (21).
5. a kind of dust-proof blackboard eraser with time showing according to claim 1, is characterized in that: the top of described flexible water bag (4) is provided with water inlet (47); Described blackboard eraser casing base (1) is provided with three perforate mutually corresponding with water inlet (47), the 3rd perforate is provided with capping (471).
6. a kind of dust-proof blackboard eraser with time showing according to claim 1, is characterized in that: the base plate of described blackboard eraser casing base (1) is that active buckle is on blackboard eraser casing base (1).
7. a kind of dust-proof blackboard eraser with time showing according to claim 1, is characterized in that: described flexible water bag (4) is that rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520528430.0U CN204820818U (en) | 2015-07-20 | 2015-07-20 | Dustproof blackboard eraser with time display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520528430.0U CN204820818U (en) | 2015-07-20 | 2015-07-20 | Dustproof blackboard eraser with time display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204820818U true CN204820818U (en) | 2015-12-02 |
Family
ID=54678452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520528430.0U Expired - Fee Related CN204820818U (en) | 2015-07-20 | 2015-07-20 | Dustproof blackboard eraser with time display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204820818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749423A (en) * | 2018-06-06 | 2018-11-06 | 南京机电职业技术学院 | A kind of electric dust absorption blackboard eraser |
-
2015
- 2015-07-20 CN CN201520528430.0U patent/CN204820818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749423A (en) * | 2018-06-06 | 2018-11-06 | 南京机电职业技术学院 | A kind of electric dust absorption blackboard eraser |
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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: 20151202 Termination date: 20160720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |