CN209124523U - A kind of collection of chalk dust and collating unit - Google Patents
A kind of collection of chalk dust and collating unit Download PDFInfo
- Publication number
- CN209124523U CN209124523U CN201821506050.7U CN201821506050U CN209124523U CN 209124523 U CN209124523 U CN 209124523U CN 201821506050 U CN201821506050 U CN 201821506050U CN 209124523 U CN209124523 U CN 209124523U
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- CN
- China
- Prior art keywords
- friction
- friction ball
- chalk
- ball
- power house
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- 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.)
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Abstract
The utility model discloses a kind of collection of chalk dust and collating units, including rectangular chalkboard eraser placing frame, power house, chalk ash collection box, friction lever, friction ball, friction ball contact hole.The surrounding of chalkboard eraser placing frame is equipped with friction lever, power house and chalk ash collection box respectively there are two, be centrosymmetric, be separately mounted to chalkboard eraser placing frame it is diagonal on.The side wall of chalk ash collection box is equipped with filter hole, is equipped with filter screen in filter hole；Ash absorbing hole is in the upper surface of chalk ash collection box；Power house upper end offers friction ball contact hole, and bottom is provided with friction ball pedestal.One end that friction lever is located at power house is provided with contact surface, and friction ball is pressed in friction ball contact hole by friction ball pedestal and contact surface；One end positioned at chalk ash collection box is provided with impeller.The device generates power using friction, does not need the support of any power equipment, and the chalk dust of collection can be utilized again and produce chalk, there is energy-saving and emission-reduction, protection environment.
Description
Technical field
The utility model relates to the collection of a kind of teaching aid more particularly to a kind of chalk dust and collating units.
Background technique
Nowadays, China's chalk is divided into common chalk and two kinds of dust-free chalk.Chinese school is temporarily also in common flour
In the epoch that pen is write, when erasing the board, chalk dust dances in the air all over the sky in the sky.And the chalk dust sucked has very big harm: powder to human body
Ash is easy to be inhaled into lung, and majority is delayed in alveolar.By a series of stimulation, chemistry and immune effect
Lung is caused to lose, including inflammation in respiratory system and pulmonary ventilation function decline；And the approach that chalk dust enters lung is by upper
Respiratory tract, including nose, pharynx, bronchus.Part dust can stay in the upper respiratory tract, to mucomembranous epithelial cell generate mechanical stimulus and
Damage.It works in such a case for a long time, a series of lesion can be caused；The main component of chalk dust are as follows: calcium carbonate, oxidation
The water-soluble substances such as calcium, dissolve easily in water, and generate alkaline matter.In teaching process, chalk dust is fallen into eye teacher,
Lacrimal secretion is stimulated, tears hydrolyze calcium carbonate and generate alkaline matter, will seriously stimulate eye mucous membranes, cause mucosa injury,
Form chronic inflammation.
Although dust-proof chalk eraser and full-automatic dust-proof chalk eraser now on the market solves chalk dust and flies upward, causes everywhere
The unfavorable situation of pollution, but because both chalkboard erasers require too high, the device of especially full-automatic dust-proof chalk eraser to equipment, at
Ben Taigao causes actual production use to be affected, and cannot be able to universal use.
Utility model content
The purpose of the utility model is to provide a kind of collection of chalk dust and collating units, solve chalk dust and pollute ring
Border, the problem of threatening to teachers and students' health, to reach energy-saving and environment-friendly purpose.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of collection of chalk dust and collating unit, it is characterised in that: including rectangular chalkboard eraser placing frame, power house, powder
Pen grey collection box, friction lever, friction ball, friction ball contact hole；The surrounding of the chalkboard eraser placing frame is provided with rotatable institute
State friction lever；There are two the power houses, is centrosymmetric, be separately positioned on one of the chalkboard eraser placing frame it is diagonal on；
There are two the chalk ash collection boxes, is centrosymmetric, be separately positioned on the chalkboard eraser placing frame another it is diagonal on；Institute
Friction lever both ends are stated to have respectively entered in the corresponding chalk ash collection box and the power house；The chalk ash collection box is
Closed space, with the friction lever cooperation side wall on be provided with filter hole, above lid on be provided with ash absorbing hole；It is described
Filter screen is provided in filter hole；The friction ball contact hole is provided with the upper end of the power house, and one of the friction ball
Point by the friction ball contact hole it is exposed outside the power house, with blackboard CONTACT WITH FRICTION；The bottom of the power house is set
It is equipped with the friction ball pedestal for fixing the friction ball；One end that the friction lever is located at the power house is provided with and rubs
The contact surface of ball cooperation, the friction ball are pressed on the friction ball contact hole by the friction ball pedestal and the contact surface
It is interior；One end that the friction lever is located at the chalk ash collection box is provided with impeller.
Further, two impellers in the chalk ash collection box are a large impeller and a leaflet
Wheel, two impellers are connected with the friction lever.The impeller is made of the light plastics of material.
Further, the one side that the friction ball pedestal is contacted with the friction ball is in concave, is rubbed described in semi-surrounding
Wipe ball.
Further, the contact surface is in concave, surrounds described friction ball a part.
Compared with prior art, the advantageous effects of the utility model: the utility model by chalkboard eraser placing frame come
Fixed chalkboard eraser, the indoor friction ball of power carries out friction rolling with blackboard, to drive friction lever to rotate, so that chalk dust is received
Collect the wheel rotation in box, causes air to flow, chalk dust is drawn into chalk ash collection box by ash absorbing hole, will be empty from filter hole
Gas discharge, filter screen stay in chalk dust in chalk ash collection box；Without additionally utilizing other power that can realize the normal of device
Operating, achievees the purpose that economize on resources；Structure is simple, it is cheap, reliable for operation, be suitable for promoting；Operation and control are easy, make
With conveniently；Chalk dust is collected using wind pressure, reduces dust emission, realizes energy-saving and emission-reduction.
Detailed description of the invention
The utility model is described in further detail for explanation with reference to the accompanying drawing.
Fig. 1 is chalk dust collecting device schematic diagram of internal structure；
Fig. 2 is chalk dust collecting device appearance schematic diagram；
Fig. 3 is chalk ash collection box side wall schematic diagram；
Description of symbols: 1- chalkboard eraser placing frame；2- friction lever；3- power house；4- friction ball contact hole；5- chalk
Grey collection box；6- impeller；7- friction ball；8- ash absorbing hole；9- friction ball pedestal；10- contact surface；11- filter hole；12- filtering
Net.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of collection of chalk dust and collating unit, including rectangular chalkboard eraser placing frame 1, power
Room 3, chalk ash collection box 5, friction lever 2, friction ball 7, friction ball contact hole 4.There are four the surrounding installations of chalkboard eraser placing frame 1
Rotary friction lever 2, four friction levers 2 can be rotated in the surrounding of chalkboard eraser placing frame.There are two power houses 3, is in
The heart is symmetrical, be separately fixed at one of chalkboard eraser placing frame 1 it is diagonal on；There are two chalk ash collection boxes 5, is centrosymmetric, point
Be not fixed on chalkboard eraser placing frame 1 another it is diagonal on.
The both ends of friction lever 2 have respectively entered in corresponding chalk ash collection box 5 and power house 3, wherein chalk ash collection
Box 5 be closed space, with friction lever 2 cooperate side wall on offer filter hole 11, above lid on offer ash absorbing hole
8.Filter screen 12 is installed in filter hole 11.
Friction ball contact hole 4 is provided with the upper end of power house 3, and friction ball contact hole 4 can block friction ball 7, and can guarantee
Friction ball 7 comes into full contact with blackboard.
The bottom of power house 3 is equipped with the friction ball pedestal 9 for fixed friction ball 7.Friction lever 2 is located at power house 3
One end offers the contact surface 10 cooperated with friction ball 7, and friction ball 7 is pressed on friction by friction ball pedestal 9 and contact surface 10
In ball contact hole 4.
One end that friction lever 2 is located at chalk ash collection box 5 is fixed with impeller 6.Two leaves in chalk ash collection box 5
Wheel 6 is a large impeller and a small impeller, and two impellers are connected with friction lever 2.Impeller 6 is made of the light plastics of material.
The one side that friction ball pedestal 9 is contacted with friction ball 7 is in concave, semi-surrounding friction ball 7.Contact surface 10 is in concave, packet
7 a part of friction ball is enclosed, so that friction ball rotation is more stable.7 material of friction ball it is homogeneous, wear-resisting.
The action process of the utility model is as follows:
There are two friction balls 7 altogether for the collection of the chalk dust and collating unit, and when erasing the board, friction ball 7 can pass through friction
Ball contact hole 4 is in rolling contact between blackboard, and the component coaxial with friction lever 2, which will drive, in 7 rotation process of friction ball rubs
Pole 2 rotates.Also, there are two vertical friction levers 2 for contact on the same friction ball 7, therefore, in the mistake that friction ball 7 rotates
Cheng Zhong necessarily has a friction lever 2 and is rotated, so that impeller 6 rotates.The rotation of impeller 6 can change chalk ash collection
Pressure in box 5, so that chalk dust be made to enter in chalk ash collection box 5 by ash absorbing hole 8.Meanwhile because in filter hole 11
There is the presence of filter screen 12, so that chalk dust will not be with air 5 exclusion out of chalk ash collection box, to realize to chalk
The collection of ash.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to the utility model
Range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are practical new to this
The various changes and improvements that the technical solution of type is made should all fall into the protection scope that the utility model claims book determines
It is interior.
Claims (5)
1. collection and the collating unit of a kind of chalk dust, it is characterised in that: including rectangular chalkboard eraser placing frame (1), power house
(3), chalk ash collection box (5), friction lever (2), friction ball (7), friction ball contact hole (4)；The chalkboard eraser placing frame (1)
Surrounding is provided with the rotatable friction lever (2)；There are two the power houses (3), is centrosymmetric, and is separately positioned on described
On one of chalkboard eraser placing frame (1) is diagonal；There are two the chalk ash collection boxes (5), is centrosymmetric, is separately positioned on institute
State chalkboard eraser placing frame (1) another it is diagonal on；The both ends of the friction lever (2) have respectively entered the corresponding chalk dust
In collection box (5) and the power house (3)；The chalk ash collection box (5) is closed space, is matched with the friction lever (2)
Filter hole (11) are provided on the side wall of conjunction, above lid on be provided with ash absorbing hole (8)；It is provided on the filter hole (11)
Filter screen (12)；The friction ball contact hole (4) is provided with the upper end of the power house (3), a part of the friction ball (7)
It is exposed outside the power house (3) by the friction ball contact hole (4), with blackboard CONTACT WITH FRICTION；The power house (3)
Bottom is provided with the friction ball pedestal (9) for fixing the friction ball (7)；The friction lever (2) is located at the power house (3)
One end be provided with the contact surface (10) with friction ball (7) cooperation, the friction ball (7) by the friction ball pedestal (9) and
The contact surface (10) is pressed in the friction ball contact hole (4)；The friction lever (2) is located at the chalk ash collection box
(5) one end is provided with impeller (6).
2. collection and the collating unit of chalk dust according to claim 1, it is characterised in that: be located at the chalk ash collection
Two impellers (6) in box (5) are a large impeller and a small impeller, and two impellers are connected with the friction lever (2).
3. collection and the collating unit of chalk dust according to claim 2, it is characterised in that: the impeller (6) is by material
Light plastics are made.
4. collection and the collating unit of chalk dust according to claim 1, it is characterised in that: the friction ball pedestal (9)
The one side contacted with the friction ball (7) is in concave, friction ball (7) described in semi-surrounding.
5. collection and the collating unit of chalk dust according to claim 1, it is characterised in that: the contact surface (10) is in recessed
Face shape surrounds the friction ball (7) a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821506050.7U CN209124523U (en) | 2018-09-14 | 2018-09-14 | A kind of collection of chalk dust and collating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821506050.7U CN209124523U (en) | 2018-09-14 | 2018-09-14 | A kind of collection of chalk dust and collating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209124523U true CN209124523U (en) | 2019-07-19 |
Family
ID=67230188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821506050.7U Expired - Fee Related CN209124523U (en) | 2018-09-14 | 2018-09-14 | A kind of collection of chalk dust and collating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209124523U (en) |
-
2018
- 2018-09-14 CN CN201821506050.7U patent/CN209124523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190719 Termination date: 20200914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |