CN2292032Y - Dust-suction blackboard eraser - Google Patents
Dust-suction blackboard eraser Download PDFInfo
- Publication number
- CN2292032Y CN2292032Y CN 97238214 CN97238214U CN2292032Y CN 2292032 Y CN2292032 Y CN 2292032Y CN 97238214 CN97238214 CN 97238214 CN 97238214 U CN97238214 U CN 97238214U CN 2292032 Y CN2292032 Y CN 2292032Y
- Authority
- CN
- China
- Prior art keywords
- dust
- pipe joint
- brush body
- motor
- shell
- 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 dust-suction blackboard brush. The utility model is composed of a brush body and a dust-suction device. A casing (16) of the brush body is provided with an inner cavity (18) and is provided with a power switch (14) connected with a motor, the erasing brush face of the casing (16) is provided with dust erasing strips (17), one end of the casing (16) is provided with a pipe joint (13), gaps (15) are arranged among the dust erasing strips (17), the motor (2) with a blade (3) is arranged on a base (1) of the dust-suction device, the blade (3) is arranged in a cover casing (4) with an open bottom end, the cover casing (4) fixed on the motor (2) by a screw bolt (12) is provided with a baffle (6), the baffle (6) is provided with a cover cylinder (8) of a built-in filtering cylinder (7), the baffle (6) arranged between the filtering cylinder (7) and the cover cylinder (8) is provided with an air groove (5), the top end of the cover cylinder (8) is provided with an upper lid (10) with a pipe joint, both ends of a flexible pipe (11) are respectively connected with the brush body and the pipe joint of the dust-suction device.
Description
The utility model relates to a kind of blackboard brush of absorbing chalk dust.
Traditional blackboard brush is when wiping the blackboard chalk writing, and often make that the person that holds the brush reaches around the blackboard on one's body, dais etc. locates full dust, is unfavorable for that the people's is healthy.Existing people designs the blackboard brush that can absorb dust at this problem, but unreasonable because of its structure, is not easy to operation and maintenance, is difficult to eventually emerge as product.
The purpose of this utility model is, designs a kind of dust-absorbing blackboard brush, has rational in infrastructurely, and pick-up performance is good, characteristics easy to use.
The technical solution of the utility model is, it is made up of brush body and dust exhaust apparatus, its design feature is, described brush body has the shell of band inner chamber, its brushing face is equipped with strip and wipes lath, gap with the intracavity inter-connection of shell is arranged between the adjacent wiping lath, shell one end that the push button power switch is equipped with in the side has the connecting pipe joint that communicates with inner chamber, the series excitation type motor is housed on the base of described dust exhaust apparatus, on this motor reel fan blade is housed, described fan blade places with bolt and supports and be fixed on the motor and the bottom is uncovered case, dividing plate is contained in the case top, cover tube bottom places on the dividing plate and its top has the loam cake of connecting pipe joint to join together by described bolting, in the cover tube ventilative filter cylinder is arranged, on the dividing plate between filter cylinder and the cover tube air drain is arranged, the two ends that are communicated with flexible pipe join with the connecting pipe joint and the brush body shell connecting pipe joint of dust exhaust apparatus loam cake respectively, and the lead of the push button power switch of brush body shell connects with motor power line along flexible pipe.
Make below in conjunction with accompanying drawing and to further specify.
Description of drawings: Fig. 1 is the structure of looking up of brush body, and Fig. 2 is an A-A sectional structure among Fig. 1, and Fig. 3 is the dust exhaust apparatus sectional structure.In the accompanying drawings:
1-base, 7-filter cylinder,
2-motor, 8-cover tube,
3-fan blade, 9-dust pocket,
4-case, 10-loam cake,
5-institute groove, 11-flexible pipe,
6-dividing plate, 12-bolt,
13-connecting pipe joint, 16-shell,
14-push button power switch, 17-wiping lath.
15-gap, 18-inner chamber.
By accompanying drawing as can be known, the utility model is made up of brush body and dust exhaust apparatus, and its design feature is that described brush body has The shell (16) of band inner chamber (18), its brushing face has wiping lath (17), between the adjacent wiping lath (17) same inner chamber is arranged (18) gap (15) that is communicated with, shell (16) one ends that button mains switch (14) is equipped with in the side have same inner chamber (18) The connecting pipe joint (13) that is communicated with is equipped with series excitation type motor (2) on the base of described dust exhaust apparatus (1), this is electronic On machine (2) axle fan blade (3) is housed, fan blade (3) places with bolt (12) and supports and be fixed on the upper and bottom of motor (2) In uncovered case (4), dividing plate (6) installs at case (4) top, and cover tube (a 8) bottom places on the dividing plate (6) also Fixing by bolt (12), cover tube (8) top has ventilative with there being the loam cake (10) of connecting pipe joint to join in the cover tube (8) Filter cylinder (7), on the dividing plate (6) between filter cylinder (7) and the cover tube (8) air drain (5) is arranged, be communicated with the two ends of flexible pipe (11) The connecting pipe joint (13) of the connecting pipe joint of same loam cake (10) and brush body shell (16) joins respectively, shell (16) The lead of button mains switch (14) is connected along the power line of the same motor of flexible pipe (11) (2).
Design principle of the present utility model is, when hand-held brush body and when pressing switch (14), then motor (2) is connected Power supply, fan blade (3) rotation, the airflow direction that produces is namely connected by loam cake (10) shown in arrow among Fig. 3 With in the air intake filter cylinder (17), can not store by filter cylinder (7) wall with the dust of air intake in the flexible pipe (11) In dust pocket (9), air then sees through this filter cylinder (7) also through the uncovered discharge of air drain (5) from case (4) bottom; Referring to Fig. 1 and Fig. 2, when hand-held brush body erases the board, to wipe lath (17) and play the effect of wiping ash, dust is sucked by gap (15) Enter in the dust exhaust apparatus in the inner chamber (18) and through flexible pipe (11). Take off the loam cake (10) of dust exhaust apparatus and can remove filter cylinder (7) The middle dust of storing. Experiment showed, that the utility model pick-up performance reaches satisfaction.
As known from the above, the utility model is a kind of dust-absorbing blackboard brush that is made up of brush body and dust exhaust apparatus, and dust suction is arranged The characteristics such as effective, rational in infrastructure, easy to use.
Embodiment: according to the utility model of accompanying drawing and said structure, the shell of brush body (16) is with plastic shaping and similar in appearance to the structure size of existing blackboard brush, thus connecting pipe joint (13) for oval to reduce outer casing thickness; The motor of dust exhaust apparatus (2) adopts the direct current generator (also can adopt the motor of AC/DC) of 12 shape voltages, and its power supply is obtained through rectifier by civil power; Cylinder iron to obtain good stability, the dust exhaust apparatus overall dimensions is about 200 * 400 millimeters of ∮ to base (1).
Claims (1)
1, a kind of dust-absorbing blackboard brush, form by brush body and dust exhaust apparatus, it is characterized in that, described brush body has the shell (16) of band inner chamber (18), its brushing face has wiping lath (17), the gap (15) that has same inner chamber (18) to be communicated with between the adjacent wiping lath (17), the connecting pipe joint (13) that shell (16) one ends that push button power switch (14) is equipped with in the side have same inner chamber (18) to be communicated with, series excitation type motor (2) is housed on the base of described dust exhaust apparatus (1), on its axle fan blade (3) is housed, fan blade (3) places and supports and be fixed on that motor (2) is gone up and the bottom is uncovered case (4) with bolt (12), dividing plate (6) is contained in case (4) top, cover tube (8) bottom places dividing plate (6) to go up and fixed by bolt (12), cover tube (8) top is with there being the loam cake (10) of connecting pipe joint to join, in the cover tube (8) ventilative filter cylinder (7) is arranged, on the dividing plate (6) between filter cylinder (7) and the cover tube (8) air drain (5) is arranged, the connecting pipe joint of the same respectively loam cakes in two ends (10) of connection flexible pipe (11) and the connecting pipe joint (13) of brush body shell (16) join, and the lead of the push button power switch (14) of shell (16) joins along the power line of the same motor of flexible pipe (11) (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97238214 CN2292032Y (en) | 1997-05-21 | 1997-05-21 | Dust-suction blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97238214 CN2292032Y (en) | 1997-05-21 | 1997-05-21 | Dust-suction blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292032Y true CN2292032Y (en) | 1998-09-23 |
Family
ID=33948639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97238214 Expired - Fee Related CN2292032Y (en) | 1997-05-21 | 1997-05-21 | Dust-suction blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292032Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845169A (en) * | 2020-08-05 | 2020-10-30 | 陕西理工大学 | Auxiliary device for mathematical education |
-
1997
- 1997-05-21 CN CN 97238214 patent/CN2292032Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845169A (en) * | 2020-08-05 | 2020-10-30 | 陕西理工大学 | Auxiliary device for mathematical education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |