CN2108634U - Eraser with automatic absorbing chalk dust - Google Patents
Eraser with automatic absorbing chalk dust Download PDFInfo
- Publication number
- CN2108634U CN2108634U CN 90220756 CN90220756U CN2108634U CN 2108634 U CN2108634 U CN 2108634U CN 90220756 CN90220756 CN 90220756 CN 90220756 U CN90220756 U CN 90220756U CN 2108634 U CN2108634 U CN 2108634U
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- sassafras
- dust
- way brake
- housing
- away
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Abstract
The utility model relates to a blackboard eraser with automatic collecting chalk dust belonging to the field of culture and education tools with no additional energy consumption, which can be used to erase blackboards and automatically collect chalk dust according to traditional customs and solve the problem that chalk dust harms human bodies since a long time ago. The utility model comprises a casing body (1), an upper cover (2), a one-way braking erasing body (3), a fixing bracket (4), a dust collecting brush (5), a chalk dust guide board (6), a sealing band (7), a dust collecting dam (8) and an end leave board (9). The erasing body automatically carries chalk dust into the casing body in use; the chalk dust is collected into the casing body by the dust collecting brush; a little falling chalk dust is collected into the casing body by the dust collecting dam when a blackboard is erased. The utility model has the advantages of simple structure, low cost and no noise.
Description
The utility model belongs to the culture and education field of tool, is a kind of automatic dust collection blackboard eraser that does not have any additional energy consumption.
Traditional block board sassafras is arranged in the prior art, electric dust absorption plate sassafras has also appearred on the market, also have by inertia and drive the dust-catching board sassafras, recently Chinese patent: CN2055779U disclosed a kind of dust-catching board sassafras in 90 years, it is " a kind of rolling sassafras of the roller bearing made from felt or suction-operated material falls letter written with chalk; when adsorbing dust simultaneously and rolling into housing, dust is scraped is fallen in the housing by scraping powder muscle 5, uses loam cake to be opened after a period of time and removes dust ".Block board sassafras of the prior art does not have dust collect plant, a large amount of dust harzard human bodies are arranged, electric dust absorption plate sassafras and inertia dust-catching board sassafras need power supply and with realizing the inertia dust suction energetically, these two kinds all have complicated gear drives, the cost height, noise, fragile, inconvenience maintenance is arranged.Recently 90 on April 11, disclosed Chinese patent CN2055779U dust-catching board sassafras, sassafras is wiped away body and has only one, wipes away in good time easily scratching blackboard of angle sassafras, in addition, sassafras is wiped away blackboard and leans on the roller bearing rolling to finish, and can not brake sassafras and wipe away, sassafras is wiped away body and rolls on chalk writing mostly, and it is not high that sassafras is wiped away efficient.
The purpose of this utility model is for a kind of automatic dust collection blackboard eraser is provided, can the clean blackboard of sassafras again can automatic dust collection.
It is to wipe away body (3) fixed mount (4) dust collecting brush (5) dust guide plate (6) band (7) control of dust dike (8) end trap parts such as (9) by housing (1) loam cake (2) one-way brake sassafras to be combined into a cuboid that the purpose of this utility model realizes.(being called for short sassafras later on, to wipe away body (3) be that two circles that built-in mechanism by friction braking at one end is housed are leant on the shape body to architectural feature, and central shaft is equipped with at two ends for the one-way brake sassafras is wiped away body (3).Housing (1) is sheet material processing to be arranged or be injection molded into the strip U-shaped body of (comprising two ends dust-collecting cavity length), and two ends are provided with the limit groove, so that end trap (9) inserts from groove.Strip band (7) is housed in U-shaped body two inboards to escape in order to the restriction brush dust that falls.Also be provided with hole or bayonet socket that usefulness is installed in addition in U-shaped body both sides.Fixed mount (4) is two just to be used for fixing wiping body (3) and loam cake (2) housing (1) and to regulate sassafras that to wipe away the critical piece of distance between body (3) and dust collecting brush (5) be rectangular strip, at fixed mount (4) horizontal direction equidistant tight fit hole and φ 6mm axle sleeve hole of making a call to a φ 3mm in the corresponding center of center line perpendicular to fixed mount (4).Make a call to a screw perpendicular to fixed mount (4) center line and at central point equally in fixed mount (4) vertical direction.Be used for being provided with the raised points of same height by two ends places or being used for and being connected and adjusting dust collecting brush (5) and sassafras and wipe away distance between the body (3) of housing (1) at fixed mount (4) at the bayonet socket that fixed mount (4) both ends of the surface are provided with adjustable step with the parallel of loam cake (2).Being provided with two rectangular openings at loam cake (2) longitudinal direction makes sassafras wipe away body (3) projection and keeps certain clearance.Open two long rectangular openings at loam cake (2) two ends perpendicular to two rectangular openings and be used to install control of dust dike (8), control of dust dike (8) is to become certain shape with soft resilient materials processing, it is fixing to be exposed at loam cake (2), and stretching into partly has the dust guiding and prevent the effect that dust is reverse in the loam cake (2).Principle: the hand-held blackboard eraser of operator is still by traditional habit sassafras blackboard during use, two sassafras are wiped away pressure and the mill sassafras power alternation of body (3) armrest arm to blackboard, when turning left sassafras, the sassafras on the right is wiped away body (3) and brakes the sassafras that blackboard eraser is wiped away (operating condition be in the face of the blackboard eraser back side) left side to the right and wipe away body (3) and rotate in shell and bring dust into housing and collected in housing by dust collecting brush (5) brush.When turning right sassafras, the sassafras on the left side is wiped away body (3) and brakes left and carry out sassafras and wipe away, and the sassafras on the right is wiped away body (3) and rotates in shell dust is brought in the housing by dust collecting brush (5) brush collection in housing.Wipe away the dust that has a small amount of sassafras to fall in the process sassafras and catch collection by control of dust dike (8) and go in the housing, be provided with band (7) dust in the housing and can not overflow in the slave plate sassafras slit.Unnecessary consideration directionality problem when being provided with dust guide plate (6) and two ends in the plate sassafras and all having control of dust dike (8) to use.Plate sassafras two ends are provided with dust-collecting cavity and can open end trap (9) outwell dust when dust dress collection is a certain amount of.
This novel effect: two sassafras that the utility model adopts wipe away body and blackboard forms the gap, location, do not hinder blackboard, have adopted built-in one-way brake mechanism, have prevented the destruction of dust to the blackboard eraser operating condition effectively, and this mechanism does not have noise by friction work.Forward can brake blackboard wiping immediately, wiping efficient height, dust is carried in reverse rotation flexibly, does not need the additional source of energy automatic dust collection.There are not motor, flying wheel and pinion unit, simple structure, cost is low, and the life-span is long.Two wiping bodies (3) structure is the same, is convenient to produce and head and the tail are corresponding parallel each other is mounted for inward turning control of dust outward turning braking sassafras and wipes away, and does not stay the dust trace on the blackboard.Sassafras is wiped away sassafras on the body (3), and to remove the dust material replaceable, and dust collecting brush (5) and sassafras are wiped away distance between the body (3) and can adjust and improved service life.The utility model is because constructional two-way interchangeability (scalar property) has kept people sassafras for a long time wipes away custom and brought convenience to the user.This establishes band (7) in novel and dust guide plate (6) control of dust dike (8) dust collecting effect is good.Particularly plate sassafras two ends control of dust dike (8) also is collected the dust of can not collecting that inevitably a small amount of sassafras falls in the prior art.The above-mentioned relatively prior art of whole structure is good.The utility model has solved the problem of the numerous teachers and students' health of dust harzard more satisfactoryly.
Figure of description is an embodiment, and erection sequence is earlier wiped away body (3) the one ends built-in one-way brake mechanism of packing into sassafras.This mechanism requires to wipe away the coaxial installation of body (3) with sassafras, loads onto central shaft at the other end and also requires to wipe away the coaxial installation of body (3) with sassafras.It is the same that two sassafras are wiped away body (3) structure, wants the head and the tail correspondence to be installed in parallel on two fixed mounts (4) for control of dust needs two sassafras to wipe away body (3).Then loading onto lid (2) on fixed mount (4), to note selecting sassafras body (3) braking direction be that two sassafras are wiped away body (3) one side of outer direction installation loam cake (2) relatively each other, next loads onto control of dust dike (8) at horizontal rectangular opening place, loam cake (2) two ends.Vertically load onto 2--4 bar dust collecting brush (5) at housing (1) inner bottom part, on the vertical dust collecting brush direction in dust collecting brush two ends, load onto dust guide plate (6), and then to groove place, housing (1) limit, two ends reeve end trap (9), wipe away body (3) parallel longitudinal dust collecting brush (5) together with loam cake (2) and sassafras at last and pack into (1) in the housing and adjust dust collecting brush (5) and sassafras is wiped away distance between body (3), even if installation is finished.This novel except that the part of one-way brake mechanism all available working of plastics make, in light weight, processing is simple.Be contained in sassafras wipe away the dedusting material of body (3) can be made into the velcro formula change convenient especially.Fixed mount (4) can be injected into an integral body with combined type and loam cake (2).Housing can also be injection molded into various art modelling bodies.
The explanation of Figure of description drawing:
Key diagram is a kind of perspective view that does not have the automatic dust collection blackboard eraser of additional energy consumption.Wherein 1 is housing, and 2 is loam cake, and 3 wipe away body for the one-way brake sassafras, and 4 is fixed mount, and 5 is that dust collecting brush 6 is the dust guide plate, and 7 is band, and 8 is the control of dust dike, and 9 is the end trap.These figure two ends are the same at same position perspective structure.
Claims (8)
1, a kind of automatic dust collection blackboard eraser, by loam cake, housing, sassafras is wiped away body, the control of dust dike, dust collecting brush, the dust guide plate, the end trap, fixed mount, band is formed, it is characterized in that in its front being that the vertical half-naked dewiness of loam cake is equipped with two rotatable one-way brake sassafras and wipes away body, cover the one-way brake sassafras and wipe away the body two ends two control of dust dikes laterally are housed last, housing and loam cake join, two end traps are housed at the housing two ends, two dust guide plates are equipped with at two ends in housing, the housing both sides are provided with two bands, there are two groups of strip dust collecting brushes in the stage casing, wipe away the body parallel installation of joining with two one-way brake sassafras, the one-way brake sassafras is wiped away body central shaft two ends and is connected with the fixed mount of two horizontally sets, and fixed mount is linked to be an integral body with screw and housing and loam cake.
2, automatic dust collection blackboard eraser according to claim 1 is characterized in that it is the cylinder that central shaft is equipped with at two ends that the one-way brake sassafras is wiped away body, and two one-way brake sassafras are wiped away the corresponding parallel installation of body head and the tail.
3, automatic dust collection blackboard eraser according to claim 1 is characterized in that the one-way brake sassafras wipes away the surface material that can sassafras removes dust is housed.
4, automatic dust collection blackboard eraser according to claim 1 is characterized in that the one-way brake sassafras wipes away body one end built-in one-way brake mechanism by friction work is housed, and one-way brake working shaft and one-way brake sassafras are wiped away the body spigot shaft coaxle.
5, automatic dust collection blackboard eraser according to claim 1 is characterized in that two one-way brake sassafras wipe away body and can rotate around central shaft.
6, automatic dust collection blackboard eraser according to claim 1 is characterized in that dust collecting brush brushes (length is wiped away body length greater than the one-way brake sassafras) by 2～4 strips and wipe away the parallel installation of body with the one-way brake sassafras.
7, automatic dust collection blackboard eraser according to claim 1 is characterized in that the one-way brake sassafras is wiped away body and dust collecting brush distance between the two is adjustable.
8, automatic dust collection blackboard eraser according to claim 1 is characterized in that housing is cuboid or various fine arts appearance body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90220756 CN2108634U (en) | 1990-09-10 | 1990-09-10 | Eraser with automatic absorbing chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90220756 CN2108634U (en) | 1990-09-10 | 1990-09-10 | Eraser with automatic absorbing chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2108634U true CN2108634U (en) | 1992-07-01 |
Family
ID=4899114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90220756 Granted CN2108634U (en) | 1990-09-10 | 1990-09-10 | Eraser with automatic absorbing chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2108634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336104A (en) * | 2011-10-28 | 2012-02-01 | 朱芯雨 | Novel blackboard brush |
| CN103241043A (en) * | 2012-02-08 | 2013-08-14 | 俞渤仁 | Single-sided dust collection blackboard eraser |
| CN106739696A (en) * | 2017-01-24 | 2017-05-31 | 杨桢 | The automatic blackboard eraser cleared up and collect dust |
-
1990
- 1990-09-10 CN CN 90220756 patent/CN2108634U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336104A (en) * | 2011-10-28 | 2012-02-01 | 朱芯雨 | Novel blackboard brush |
| CN103241043A (en) * | 2012-02-08 | 2013-08-14 | 俞渤仁 | Single-sided dust collection blackboard eraser |
| CN103241043B (en) * | 2012-02-08 | 2015-06-17 | 俞渤仁 | Single-sided dust collection blackboard eraser |
| CN106739696A (en) * | 2017-01-24 | 2017-05-31 | 杨桢 | The automatic blackboard eraser cleared up and collect dust |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |