CN208085330U

CN208085330U - A kind of portable device for blackboard eraser for mathematical education

Info

Publication number: CN208085330U
Application number: CN201721726814.9U
Authority: CN
Inventors: 黄正金
Original assignee: Nanan Dateng Business Services Ltd
Current assignee: Nanan Dateng Business Services Ltd
Priority date: 2017-12-12
Filing date: 2017-12-12
Publication date: 2018-11-13
Anticipated expiration: 2027-12-12

Abstract

The utility model discloses a kind of portable device for blackboard eraser for mathematical education, its structure includes support arm, cover board frame, strip of paper used for sealing, retaining ring, supporting rack, connection bolt, handle, cloth wiping, antiskid wall, tapping screw, and the antiskid wall, which fixes to be fitted into, is located at antiskid wall front and rear sides section；The retaining ring is by anti-skidding sebific duct, shaft, washer, mounting bracket, magnetic block, draw ring forms, run through inside the anti-skidding sebific duct and is entrenched in shaft outer wall, a kind of portable device for blackboard eraser for mathematical education of the utility model, it is embedded in handle top center by the rotation of mounting bracket Passscheiben, magnetic block is carried by draw ring again to be attached with mounting bracket, when faculty is when using blackboard eraser, draw ring can be rotated along the shaft inside anti-skidding sebific duct by finger, up raising makes finger directly through in draw ring, modification font is cleaned convenient for being carried conveniently when teaching, the time is saved to shorten teaching process.

Description

A kind of portable device for blackboard eraser for mathematical education

Technical field

The utility model is a kind of portable device for blackboard eraser for mathematical education, belongs to teaching equipment field.

Background technology

Electric blackboard eraser mainly overcomes current blackboard eraser efficiency low, the drawbacks such as dust from flying.Teachers and students can be made light using it Pine easily wipes clean letter written with chalk, and not will produce fulsome chalk dust, greatly changes the cleaning inside and outside classroom Health, beneficial to teachers and students health and create an excellent teaching environment to them.

Prior art discloses application No. is：A kind of portable blackboard eraser of CN201420841060.1.It includes ontology. Its main feature is that the ontology is strip, the hairbrush for erasing the board is provided on the one side of ontology from top to bottom, ontology Both ends are respectively connected with sliding rail, and sliding rail is longitudinally perpendicular with ontology, and the both ends of ontology are snapped onto in moving type in corresponding sliding rail. The lower part of the ontology is provided with handle.The working efficiency to be erased the board using the blackboard eraser is higher, can avoid security risk.This reality Include shell with novel small gas mercury removal device, has air inlet pipe in shell one side wall, another shell opposite with the side wall There is escape pipe on side wall, the axis of air inlet pipe and the axis of escape pipe are on the same line.Have in the housing cavity two pieces mutually The plate face of parallel sieve plate, sieve plate is vertical with the axis of air inlet pipe, in close between the surrounding and inner walls of sieve plate Envelope coordinates, filled with the active carbon particle for demercuration in the housing cavity between two sieve plates.The small volume of the mercury removal device, Simple in structure, the space for occupying kitchen is smaller, and the cost needed is relatively low.But disadvantage is that blackboard eraser overall construction mistake In dullness, one puts by one and not only wastes time, but also is unfavorable for cleaning modification font at any time, influences the study schedule of course.

Utility model content

In view of the deficienciess of the prior art, to be to provide a kind of portable for mathematical education black for the utility model aim Board wiping device, excessively dull to solve blackboard eraser overall construction, one puts by one and not only wastes time, but also is unfavorable for wiping at any time The problem of washing modification font, influencing the study schedule of course.

To achieve the goals above, the utility model is to realize by the following technical solutions：One kind is taught for mathematics Portable device for blackboard eraser, structure include support arm, cover board frame, strip of paper used for sealing, retaining ring, supporting rack, connection bolt, handle, Cloth wiping, antiskid wall, tapping screw, cover board frame front and rear sides surface top layer edge are in half-circle-arc shape, top cross-section For horizontal spill of standing upside down, the fixed cloth that is located at wipes top section and is mutually parallel, and the support arm is located at cover board frame in horizontal linear Top of the trellis section side center, and the rectangular groove in front and rear sides, and be integrated rectangular configuration, the strip of paper used for sealing with cover board frame Seamless to be fitted in handle side square section, the retaining ring bottom insertion is located at handle top section center, using transition cooperation side Formula flexible connection is same axis center, and support frame as described above is welded on handle base section side, with the inclined middle-range of cover board frame roof From right side, support frame as described above is in same parallel lines with support arm, and height is than more increase 0.7cm, the connection on the left of support arm Bolt and tapping screw are all cylindrical structure wide at the top and narrow at the bottom, and cover board lower portion bottom both sides shrinkage pool is run through in bottom end, embedded Cloth is wiped internal side and is fastenedly connected, and cover board base of frame section side ratio cloth wipes more increase 0.5cm, is located at cloth wiping Top is fastenedly connected using transition fit system, and the antiskid wall, which fixes to be fitted into, is located at antiskid wall front and rear sides section；The button Ring is made of anti-skidding sebific duct, shaft, washer, mounting bracket, magnetic block, draw ring, and the anti-skidding sebific duct inside, which is run through to be entrenched in, to be turned Axis outer wall, and the embedded magnetic block side edge fishplate bar gap that is located at connects simultaneously, the bead top is seamless to be fitted in installation Frame bottom section center, the magnetic block insertion is located at the top of mounting bracket, and edge height in side increases more than mounting bracket Add 0.5cm, the draw ring is entrenched in magnetic block side fishplate bar both sides by side edge inner wall shrinkage pool, and by anti-skidding sebific duct with Shaft is gap-matched mode and is flexibly connected.

Further, the support arm fixation is located at cover board lower portion side as integrated rectangular configuration, and and supporting rack In same level straight line.

Further, the mounting bracket is fastenedly connected by washer in handle top section center, and table below handle Face is fixed with strip of paper used for sealing.

Further, the connection bolt is respectively provided at tapping screw at left and right sides of cover board frame.

Further, the cloth, which nuzzles up to cross, is connected to cover board base of frame section.

Further, the antiskid wall fixation is located at cover board frame side section.

Advantageous effect

A kind of portable device for blackboard eraser for mathematical education of the utility model, is rotated by mounting bracket Passscheiben It is embedded in handle top center, then magnetic block is carried by draw ring and is attached with mounting bracket, when faculty is using blackboard When wiping, it will be able to be rotated draw ring along the shaft inside anti-skidding sebific duct by finger, up raising makes finger directly wear It crosses in draw ring, cleans modification font convenient for carrying conveniently when teaching, save the time to shorten teaching process.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon：

Fig. 1 is a kind of structural schematic diagram of portable device for blackboard eraser for mathematical education of the utility model；

Fig. 2 is the bottom schematic view of the utility model；

Fig. 3 is the retaining ring integral outer schematic diagram of the utility model；

Fig. 4 is the snap ring structure decomposition diagram of the utility model.

In figure：Support arm -1, cover board frame -2, strip of paper used for sealing -3, retaining ring -4, anti-skidding sebific duct -401, shaft -402, washer -403, Mounting bracket -404, magnetic block -405, draw ring -406, supporting rack -5, connection bolt -6, handle -7, cloth wipe -8, antiskid wall - 9, tapping screw -10.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

- Fig. 4 is please referred to Fig.1, the utility model provides a kind of technical solution：A kind of portable blackboard for mathematical education Wipe device, structure include support arm 1, cover board frame 2, strip of paper used for sealing 3, retaining ring 4, supporting rack 5, connection bolt 6, handle 7, cloth wipe 8, Antiskid wall 9, tapping screw 10,2 front and rear sides surface top layer edge of the cover board frame are in half-circle-arc shape, and top cross-section is to fall Horizontal spill is found, the fixed cloth that is located at wipes 8 top sections and is mutually parallel, and the support arm 1 is located at cover board frame 2 in horizontal linear Top cross-section side center, and the rectangular groove in front and rear sides, and be integrated rectangular configuration, the strip of paper used for sealing 3 with cover board frame 2 Seamless to be fitted in 7 side section of handle, the insertion of 4 bottom of the retaining ring is located at 7 top cross-section of handle center, is coordinated using transition Mode is flexibly connected as same axis center, and support frame as described above 5 is welded on 7 bottom section side of handle, partially with 2 top of cover board frame It is middle to be in same parallel lines apart from right side, support frame as described above 5 and support arm 1, and height is more increase 0.7cm than 1 left side of support arm, institute The cylindrical structure that connection bolt 6 and tapping screw 10 are all wide at the top and narrow at the bottom is stated, 2 inner bottom both sides of cover board frame are run through in bottom end Shrinkage pool, embedded cloth are wiped 8 inside sides and are fastenedly connected, and 2 bottom section side ratio cloth of the cover board frame is wiped more than 8 and increased 0.5cm is located at 8 top of cloth wiping and is fastenedly connected using transition fit system, and the antiskid wall 9, which fixes to be fitted into, is located at antiskid wall 9 Front and rear sides section；The retaining ring 4 is by anti-skidding sebific duct 401, shaft 402, washer 403, mounting bracket 404, magnetic block 405, drawing Ring 406 forms, and 401 inside of the anti-skidding sebific duct, which is run through, is entrenched in 402 outer wall of shaft, and insertion is located at 405 side of magnetic block simultaneously Square edge fishplate bar gap connects, and 403 top of the washer is seamless to be fitted in 404 bottom section of mounting bracket center, the magnetic The insertion of suction block 405 is located at 404 top of mounting bracket, and edge height in side increases 0.5cm, the drawing than mounting bracket more than 404 Ring 406 is entrenched in 405 side fishplate bar both sides of magnetic block by side edge inner wall shrinkage pool, and passes through anti-skidding sebific duct 401 and shaft 402, which are gap-matched mode, is flexibly connected.

Tapping screw 10 described in this patent be voluntarily attacked in the prebored hole of metal or nonmetallic materials drill out it is joined together One kind of negative thread has a threaded fasteners, when connection, first makes thread Pilot hole to connected piece, then tapping screw is screwed into connected In the thread Pilot hole of part.

In use, by the cooperation strip of paper used for sealing 3 of support arm 1 and supporting rack 5, handle 7 is fixedly mounted on cover board frame 2 and is pushed up Portion section center, simultaneously rotates connection bolt 6 and tapping screw 10 again later, penetrates 2 inside of cover board frame and wipes 8 tightly with cloth It is solidly connected, hand is embedded in this makes it possible to wipe 8 by cloth to be cleaned, then by the rotation of 404 Passscheiben 403 of mounting bracket 7 center of top of handle, then magnetic block 405 is carried by draw ring 406 and is attached with mounting bracket 404, when faculty is using black When blackboard eraser, it will be able to be rotated draw ring 406 along the shaft 402 inside anti-skidding sebific duct 401 by finger, up raising makes Finger cleans modification font directly through in draw ring 406, convenient for being carried conveniently when teaching, saves the time to shorten religion Progress.

The utility model solves the problems, such as it is that blackboard eraser overall construction is excessively dull, and one puts by one and not only wastes time, and And the problem of being also unfavorable for cleaning modification font at any time, influencing the study schedule of course, the utility model pass through above-mentioned component It is combined with each other, handle top center is embedded in by the rotation of mounting bracket Passscheiben, then magnetic block and installation are carried by draw ring Holder is attached, when faculty is when using blackboard eraser, it will be able to by finger by draw ring along in anti-skidding sebific duct The shaft in portion rotates, and up raising makes finger directly through in draw ring, is changed convenient for being carried conveniently when teaching to clean Font, saving time are described in detail below to shorten teaching process:

401 inside of anti-skidding sebific duct, which is run through, is entrenched in 402 outer wall of shaft, and insertion is located at 405 side edge of magnetic block simultaneously Fishplate bar gap connects, and 403 top of the washer is seamless to be fitted in 404 bottom section of mounting bracket center, the magnetic block 405 It is embedded to be located at 404 top of mounting bracket, and edge height in side increases 0.5cm than mounting bracket more than 404, the draw ring 406 is logical It crosses side edge inner wall shrinkage pool and is entrenched in 405 side fishplate bar both sides of magnetic block, and used by anti-skidding sebific duct 401 and shaft 402 Gap fiting mode is flexibly connected.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiment being appreciated that.

Claims

1. a kind of portable device for blackboard eraser for mathematical education, structure includes support arm (1), cover board frame (2), strip of paper used for sealing (3), retaining ring (4), supporting rack (5), connection bolt (6), handle (7), cloth wipe (8), antiskid wall (9), tapping screw (10), institute It is in half-circle-arc shape to state cover board frame (2) front and rear sides surface top layer edge, and top cross-section is horizontal spill of standing upside down, and fixation is located at Cloth wipes section at the top of (8) and is mutually parallel, it is characterised in that：

The support arm (1) is located at cover board frame (2) top cross-section side center in horizontal linear, and front and rear sides are rectangular recessed Slot, and be integrated rectangular configuration with cover board frame (2), the strip of paper used for sealing (3) is seamless to be fitted in handle (7) side section, institute It states the insertion of retaining ring (4) bottom and is located at handle (7) top cross-section center, use the flexible connection of transition fit system in same axis The heart, support frame as described above (5) are welded on handle (7) bottom section side, described with partially middle distance right side at the top of cover board frame (2) Supporting rack (5) is in same parallel lines with support arm (1), and height is than more increase 0.7cm, the connection spiral shell on the left of support arm (1) Bolt (6) and tapping screw (10) are all cylindrical structure wide at the top and narrow at the bottom, and bottom end is recessed through cover board frame (2) inner bottom both sides Hole, embedded cloth are wiped (8) internal side and are fastenedly connected, and cover board frame (2) bottom section side ratio cloth is wiped (8) and increased more 0.5cm, is located at cloth and wipes and be fastenedly connected using transition fit system at the top of (8), the antiskid wall (9) is fixed be fitted into be located at it is anti-skidding Wall (9) front and rear sides section；

The retaining ring (4) by anti-skidding sebific duct (401), shaft (402), washer (403), mounting bracket (404), magnetic block (405), Draw ring (406) forms, and runs through inside the anti-skidding sebific duct (401) and is entrenched in shaft (402) outer wall, and insertion is located at magnetic simultaneously Block (405) side edge fishplate bar gap connects, and seamless mounting bracket (404) bottom that is fitted in is cut at the top of the washer (403) Face center, the magnetic block (405) is embedded to be located at the top of mounting bracket (404), and edge height in side is than mounting bracket (404) Increase 0.5cm, the draw ring (406) is entrenched in magnetic block (405) side fishplate bar both sides by side edge inner wall shrinkage pool more, and It is flexibly connected with shaft (402) mode of being gap-matched by anti-skidding sebific duct (401).

2. a kind of portable device for blackboard eraser for mathematical education according to claim 1, it is characterised in that：The branch The fixed internal side of cover board frame (2) that is located at of arm (1) is integrated rectangular configuration, and it is straight with supporting rack (5) to be in same level Line.

3. a kind of portable device for blackboard eraser for mathematical education according to claim 1, it is characterised in that：The peace Dress holder (404) is fastenedly connected by washer (403) in handle (7) top cross-section center, and the fixation of handle (7) underlying surfaces is set There is strip of paper used for sealing (3).

4. a kind of portable device for blackboard eraser for mathematical education according to claim 1, it is characterised in that：The company Connecting bolt (6) is respectively provided at tapping screw (10) at left and right sides of cover board frame (2).

5. a kind of portable device for blackboard eraser for mathematical education according to claim 1, it is characterised in that：The cloth Material wipes (8) transition and is connected to cover board frame (2) bottom section.

6. a kind of portable device for blackboard eraser for mathematical education according to claim 1, it is characterised in that：It is described anti- Slide wall (9) fixation is located at cover board frame (2) side section.