Hello can you introduce me to the principle and characteristics of your automatic dust-absorbing board eraser no?

The utility model discloses a teaching blackboard eraser with a dust-absorbing function. Characterized by the blackboard eraser shell placed in a battery-powered small vacuum cleaner, dust suction port is located in the bottom of the erase body, wipe with a soft material at the bottom of the erase body around the formation of a circle, the circle on the upper side of the distribution of a number of cross-cutting direction of the groove and so on. Compared with the existing blackboard eraser, it can wipe the word at the same time the word dust powder sucked into it to focus on removing, to prevent the dust powder fall and fly, not only the environment is not polluted, but also to make the teaching of the health of the body is not affected.

[x23718-0045-0002] Dust-absorbing blackboard eraser

[Abstract] The utility model relates to a dust-absorbing blackboard eraser, which belongs to the stationery supplies. It includes a wiping body mounted in a dust-absorbing cover, the outlet end of the dust-absorbing cover is connected to the inlet of a dust-collecting box through a hose, and the outlet end thereof is connected to a dust collector through a pipeline. It has the advantages of good dust-absorbing effect, purifying the environment, and is beneficial to the health of teachers and students, and at the same time, it is convenient to use, easy to implement, and conducive to the promotion of application, and it is the ideal appliance for wiping the blackboard in all kinds of schools.

[x23718-0070-0003] Dust-absorbing Shoe Shine Machine

The dust-absorbing shoe shine machine is a light industrial product belonging to the field of mechanical technology. It utilizes a simple mechanical principle, and on the basis of the original shoe polishing machine, it is fitted with an additional upper polishing wheel, a sole dusting wheel, and a dust-absorbing device. This constitutes a kind of dust-absorbing shoe polishing machine, which can not only remove the soil at the bottom of the shoes, but also polish the shoes automatically. The dust-absorbing device can purify the air, remove dust and maintain hygiene, which can effectively improve work efficiency and reduce manual operation. It is an ideal living appliance widely used in family, hotel, office and other places. Its structure is simple and the manufacturing cost is low. Wear material is easy to replace, beautiful appearance.

[x23718-0054-0004] Electric dust-absorbing chalk eraser

[Abstract] This utility model mainly solves the problem of polluting the environment with the dust caused by wiping the blackboard with ordinary chalk eraser. The utility model consists of a brush plate, dust storage compartment, battery compartment partition and electrical compartment. Electrical compartment includes: motor, button switch, external power socket and other parts, fan wheel fixed on the motor shaft. The dust-absorbing chalk eraser can be powered by AC or DC power supply, and the power supply is turned on when it is held in the hand. Put down that cut off the power supply. This utility model has a large brush surface, compact structure, easy maintenance, good dust-absorbing effect, power saving and other characteristics. It is suitable for a variety of teaching wipe the blackboard with, can also adsorb woolen clothes on the dust, do vacuum cleaner.

[x23718-0113-0005] Portable electric variable-speed dust-absorbing board eraser

[Abstract] An electric variable-speed dust-absorbing board eraser consists of an eraser 1, a fan 2, an electric motor 3, and a dust-filtering sponge 4, and so on, and it connects the eraser to the electric motor and the fan through a pair of bevel gears or helical gears with different radii and axial perpendicularity 6. "__" shape, wipe down the dust by the fan blowing into the dust filter sponge, to avoid dust flying, the utility model is small, easy to carry. Because of the use of it and labor-saving and hygiene, and easy to make so it has the value of popularization and application.

[x23718-0097-0006] Dust-absorbing blackboard eraser

[Abstract] The utility model dust-absorbing blackboard eraser is a teaching tool used to inhale the use of the end of the chalk, the original blackboard eraser felt surface into three sizes, uniform thickness of the felt strips, uniformly between the three have a five to six millimeters of space, and in the blackboard eraser at the bottom of the dust box, so that, when wiping the blackboard, can be put on the blackboard to wipe the dust. Wipe the blackboard, you can erase the chalk end 90% of the three gaps through the inhalation of gray box, play a role in preventing dust flying everywhere.

[x23718-0102-0007] Automatic box-type dust-absorbing chalkboard eraser

[Abstract] The automatic box-type dust-absorbing chalkboard eraser consists of a small electric motor, a spring plate, a rotary head, a round chalkboard eraser, an ash-collecting box, a jacket and other parts. When using the jacket and blackboard surface contact, compressed spring switch on the power supply, the motor drives the round blackboard eraser rotating, erase the chalk on the blackboard, and at the same time will be dust transported to the dust collection box, when not in use will be the jacket and the blackboard surface away from the spring spring outside the spring cut off the power supply, the blackboard eraser stops working. The device has the advantages of automatic dust removal, to avoid environmental pollution, and is conducive to the health of teachers and students.

[x23718-0096-0008] Dust-absorbing board eraser for electric vacuum cleaner

[Abstract] This utility model is an electric vacuum cleaner component, and relates to a kind of dust-absorbing board eraser for electric vacuum cleaner. It consists of a housing 3, a suction hose connector 1 and a cover plate 5. In the upper center of the shell 3, there is a suction pipe connector 1 in the suction hole 2, and in the inner concave step of the lower open end of the shell 3, there is a cover plate 5 with air inlet holes 6 and 7, and the surface of the cover plate 5 is glued with felt strips 4. The advantage of this utility model is that it can remove dirt and dust on the surface of the vacuum cleaner and at the same time be sucked into the vacuum cleaner. It can be used as both home and school classroom electric vacuum blackboard eraser.

[x23718-0077-0009] Dust-absorbing board eraser

[Abstract] The utility model belongs to the dust-absorbing board eraser in the stationery. It includes an upper cover, a housing, a roller, and a fixing piece. The roller is equipped with felt or adsorption of dust materials, dust adsorption with the roller into the shell, and then by scraping powder rib will scrape the dust into the shell.

[x23718-0081-0010] Dust-absorbing blackboard eraser without power supply

[Abstract] The utility model relates to a dust-absorbing blackboard eraser that does not require power supply. When used, as long as the erase in the blackboard surface erase word movement, that will drive the erase on a friction wheel rotation, so that the erase within the growth rate of the inertia mechanism drive the dust suction pump high-speed rotation, so that the chalk dust into the erase within the collection of dust bin, and the construction of a simple, low-cost, easy to operate, easy to popularize.

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