CN202986559U - Dust-free blackboard eraser - Google Patents
Dust-free blackboard eraser Download PDFInfo
- Publication number
- CN202986559U CN202986559U CN 201220647470 CN201220647470U CN202986559U CN 202986559 U CN202986559 U CN 202986559U CN 201220647470 CN201220647470 CN 201220647470 CN 201220647470 U CN201220647470 U CN 201220647470U CN 202986559 U CN202986559 U CN 202986559U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- sparge pipe
- spray pipe
- side frame
- 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 discloses a dust-free blackboard eraser which comprises side frames (1) located on two sides of a blackboard. A water spray pipe (2) is transversely arranged between the side frames (1) in a crossing mode. Longitudinal sliding grooves are respectively arranged between two ends of the water spray pipe (2) and the side frames (1) in a matching mode. A plurality of spray orifices (6) are formed in one face, facing the blackboard, of the water spray pipe (2) along the transverse direction. An erasing plate (3) is arranged below the water spray pipe (2). Two ends of the erasing plate (3) are respectively hinged with corresponding ends of the water spray pipe (2). A handle (9) is arranged in the middle of the erasing plate (3). A water tank (4) is fixed on the upper portion of the outer side of one side frame (1). Due to the fact that the water spray pipe and the erasing plate are arranged on the front side of the blackboard in a sliding mode and the water tank is arranged for spraying water, when a person wipes off the blackboard or writes words on the blackboard, the square water spray pipe can be used for spraying the water towards the blackboard. Consequently, dust is adsorbed. The dust-free blackboard eraser greatly decreases generation and flying of the dust, reduces dust pollution in a classroom, improves air quality and protects health of students or teachers.
Description
Technical field
The utility model relates to a kind of stationery and sporting goods, specifically, and particularly a kind of dust-free black board eraser.
Background technology
Common blackboard eraser is wiped letter written with chalk by banister brush, and still, in the banister brush erase process due to blackboard eraser, letter written with chalk also can produce more dust when wiping, and flies upward everywhere, and the people who erases the board will be subject to serious dust pollution; Simultaneously also can form dust pollution in the classroom, affect the air quality in the classroom, student or teacher are caused health harm.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of dust-free black board eraser that can prevent that dust from disorderly flying.
the technical solution of the utility model is as follows: a kind of dust-free black board eraser, comprise the side frame (1) that is positioned at the blackboard both sides, crossbearer has sparge pipe (2) between side frame (1), being provided with vertical chute between the two ends of this sparge pipe (2) and side frame (1) coordinates, sparge pipe (2) edge on the face of blackboard laterally has a plurality of spray orifices (6), be provided with wiping board (3) in the below of sparge pipe (2), the corresponding end of the two ends of this wiping board (3) and sparge pipe (2) is hinged, at the middle part of wiping board (3), handle (9) is installed, the outer upper of a described side frame (1) is fixed with water tank (4) therein, this water tank (4) is communicated with by flexible pipe (5) with the corresponding end of sparge pipe (2).
The utility model is by the front sideslip dress sparge pipe at blackboard, and being equipped with water tank above sparge pipe, the hinged wiping board in below so can be by the upper and lower slip of sparge pipe before writing, spray one deck fog on blackboard, just do not allow easy dusting when writing like this.Simultaneously, when erasing the board, in the time of the eraser board eraser word; the sparge pipe of top is continuous water spray also, and the absorption dust has greatly reduced generation and unrestrained the flying of dust; reduced the dust pollution in the classroom and improved air quality, protected greatly that student or teacher's is healthy.
The section of described sparge pipe (2) is rectangle, has row's spray orifice (6) towards the upper end, side of blackboard at sparge pipe (2), and the aperture of this row's spray orifice (6) is 1-2mm.Spray orifice is opened in the upper end of sparge pipe side, and is sensitiveer to the control of water spray so, and only establishes row's spray orifice, and the aperture only establishes 1-2mm, and the water yield of ejection is little and loose like this, and effect is better, and be unlikely to blackboard do too wet, affect the distinctiveness of writing.
The two ends of described sparge pipe (2) are provided with travelling carriage (7), one end of this travelling carriage (7) is slidably matched by pulley and the side frame that stretches in side frame (1), the top of travelling carriage (7) other end and the corresponding end of sparge pipe (2) are fixed, and the bottom of travelling carriage (7) other end and the corresponding end of wiping board (3) are hinged.Sparge pipe can form with side frame on the one hand by travelling carriage and be slidably matched, fixedly sparge pipe and wiping board on the other hand, and wiping board and travelling carriage are hinged, wiping board can by rotating to control and the contacting and disengaging of blackboard, can be realized only water spray or the two kinds of different duties that erase the board while spraying water.
Be provided with switch (8) on described flexible pipe (5).Like this, more flexible with the control of opening and closing, convenient to the uninterrupted of water spray.
Two row's chutes before and after being equipped with in the side frame on described both sides (1), the upper end of two row's chutes is communicated with, and in connectivity part, roller (12) is installed, described travelling carriage (7) is positioned at one of them chute, be provided with counterweight (10) in another chute, both connect by the tightrope (11) that is placed on roller (12).After counterweight was set, under normal condition, counterweight was positioned at the lower end, and pulled sparge pipe and wiping board to be suspended from the upper end, only supported during work and need to gently draw wiping board to get final product, and made the upper and lower slip of wiping board and sparge pipe more laborsaving.
Beneficial effect: the utility model is by front sideslip dress sparge pipe and wiping board at blackboard, and be that water spray is equipped with water tank, can spray one deck fog on blackboard by the upper and lower slip of sparge pipe so before writing, just not allow easy dusting when writing like this.Simultaneously, when erasing the board, in the time of the eraser board eraser word; the sparge pipe of top is continuous water spray also, and the absorption dust has greatly reduced generation and unrestrained the flying of dust; reduced the dust pollution in the classroom and improved air quality, protected greatly that student or teacher's is healthy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram of A section in Fig. 1.
Fig. 3 is travelling carriage and the schematic diagram that coordinates of side frame.
Fig. 4 is the cutaway view in B-B cross section in Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is comprised of side frame 1, sparge pipe 2, wiping board 3, water tank 4, flexible pipe 5, travelling carriage 7, switch 8, handle 9, counterweight 10, tightrope 11 and the roller 12 etc. of blackboard.wherein side frame 1 is positioned at the both sides of blackboard, and double chute before and after being provided with in side frame 1, this double chute opening is towards the middle part of blackboard, the upper end of described double chute is communicated with, be provided with roller 12 at the middle part of connectivity part, be provided with counterweight 10 in the chute away from blackboard, be provided with travelling carriage 7 near in the chute of blackboard, " ∏ " shape part of travelling carriage 7 for keeping flat, two legs of travelling carriage 7 extend near in the chute of blackboard, the installing plate of travelling carriage 7 is positioned at outside groove, described counterweight 10 is connected by tightrope 11 with travelling carriage 7, this tightrope 11 is placed in the slot rolling of roller 12.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, crossbearer has sparge pipe 2 and wiping board 3 between the side frame 1 of described both sides.Wherein, sparge pipe 2 is square straight tube for section, and the two ends of sparge pipe 2 are fixed by the top of screw and travelling carriage 7 outside installing plates.Have the spray orifice 6 of a horizontally-arranged towards the upper end, side of blackboard at described sparge pipe 2, the aperture of this row's spray orifice 6 is 1-2mm.Be provided with wiping board 3 below described sparge pipe 2, wiping board 3 is the vertical bar shape, and wiping board 3 is the plane towards the side of blackboard, is provided with handle 9 at the lateral surface middle part of wiping board 3.The two ends of described wiping board 3 are extended with columniform installation journal stirrup, and each is installed in the installing hole that journal stirrup extend into travelling carriage 7 corresponding end installing plate bottoms, and realize that hinge is moving and connect in succession.
As depicted in figs. 1 and 2, be provided with water tank 4 in the upper end, left side of the side frame 1 on the described left side, the lower end of this water tank 4 and the upper end of blackboard panel are contour, and the bottom of water tank 4 right flanks is fixed by the limit, left side of mounting bracket and side frame 1.Be provided with flexible pipe 5 between described water tank 4 and sparge pipe 2, the upper end of this flexible pipe 5 is communicated with the bottom of water tank 4, and the lower end of flexible pipe 5 is communicated with the left-hand end of sparge pipe 2, and is provided with switch 8 on flexible pipe 5.
Claims (5)
1. dust-free black board eraser, comprise the side frame (1) that is positioned at the blackboard both sides, it is characterized in that: crossbearer has sparge pipe (2) between side frame (1), being provided with vertical chute between the two ends of this sparge pipe (2) and side frame (1) coordinates, sparge pipe (2) edge on the face of blackboard laterally has a plurality of spray orifices (6), be provided with wiping board (3) in the below of sparge pipe (2), the corresponding end of the two ends of this wiping board (3) and sparge pipe (2) is hinged, at the middle part of wiping board (3), handle (9) is installed, the outer upper of a described side frame (1) is fixed with water tank (4) therein, this water tank (4) is communicated with by flexible pipe (5) with the corresponding end of sparge pipe (2).
2. dust-free black board eraser as claimed in claim 1, it is characterized in that: the section of described sparge pipe (2) is rectangle, has row's spray orifice (6) towards the upper end, side of blackboard at sparge pipe (2), the aperture of this row's spray orifice (6) is 1-2mm.
3. dust-free black board eraser as claimed in claim 1, it is characterized in that: the two ends of described sparge pipe (2) are provided with travelling carriage (7), one end of this travelling carriage (7) is slidably matched by pulley and the side frame (1) that stretches in side frame (1), the top of travelling carriage (7) other end and the corresponding end of sparge pipe (2) are fixed, and the bottom of travelling carriage (7) other end and the corresponding end of wiping board (3) are hinged.
4. dust-free black board eraser as claimed in claim 1, is characterized in that: be provided with switch (8) on described flexible pipe (5).
5. dust-free black board eraser as described in claim 1 or 3, it is characterized in that: two row's chutes before and after being equipped with in the side frame on described both sides (1), the upper end of two row's chutes is communicated with, and in connectivity part, roller (12) is installed, described travelling carriage (7) is positioned at one of them chute, be provided with counterweight (10) in another chute, both connect by the tightrope (11) that is placed on roller (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647470 CN202986559U (en) | 2012-11-30 | 2012-11-30 | Dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647470 CN202986559U (en) | 2012-11-30 | 2012-11-30 | Dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986559U true CN202986559U (en) | 2013-06-12 |
Family
ID=48557771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647470 Expired - Fee Related CN202986559U (en) | 2012-11-30 | 2012-11-30 | Dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986559U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364222A (en) * | 2016-08-29 | 2017-02-01 | 彭展忠 | Dust-free teaching system for chalk writing |
| CN108715105A (en) * | 2018-05-31 | 2018-10-30 | 高文凭 | A kind of student is with preventing the chalk dust can Automatic erasing blackboard |
| CN109334312A (en) * | 2018-09-26 | 2019-02-15 | 汪晓倩 | A kind of novel environment friendly is without dust blackboard |
-
2012
- 2012-11-30 CN CN 201220647470 patent/CN202986559U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364222A (en) * | 2016-08-29 | 2017-02-01 | 彭展忠 | Dust-free teaching system for chalk writing |
| CN108715105A (en) * | 2018-05-31 | 2018-10-30 | 高文凭 | A kind of student is with preventing the chalk dust can Automatic erasing blackboard |
| CN109334312A (en) * | 2018-09-26 | 2019-02-15 | 汪晓倩 | A kind of novel environment friendly is without dust blackboard |
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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: 20130612 Termination date: 20131130 |