CN208812814U

CN208812814U - Blackboard with answering device

Info

Publication number: CN208812814U
Application number: CN201721639048.2U
Authority: CN
Inventors: 许长科
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2019-05-03
Anticipated expiration: 2027-11-30

Abstract

The utility model relates to a kind of blackboards with answering device, belong to classroom instruction appliance technology, including two columns and blackboard, column lower end is equipped with universal wheel, blackboard includes upper blackboard and lower blackboard, upper blackboard is fixed on metope, the wall of upper blackboard on both sides is equipped with guide rail, the two sides of lower blackboard are respectively equipped with two pulleys, pulley is located in guide rail, side wall across guide rail is equipped with caging bolt, gag lever post is equipped between two columns, the upper end of gag lever post is equipped with answering device, answering device is located at the lower section of upper blackboard, answering device does topic plate one and two including two and does topic plate two, two are done the inside that topic version plate one is connected in two columns by hinge respectively, it does topic plate two and is connected in the outside for doing topic plate one by hinge.The utility model is easy to use, and does not take up extra space.

Description

Blackboard with answering device

Technical field

The utility model relates to a kind of blackboards with answering device, belong to classroom instruction appliance technology.

Background technique

On primary school mathematics classroom, teacher is in order to examine the study situations of students, it is often necessary to enumerate on blackboard Then formula selects the upper blackboard writing of student and goes out answer.Teacher needs longitudinal writing on the blackboard on blackboard to go out multiple formulas, adjacent formula The distance between bad assurance, and since the self-discipline ability of pupil is poor, multiple students together, often hand over head to connect Ear, mutually observation answer, influences the case where teacher understands students knowledge.

Application No. is 201720265733.1 patents to disclose a kind of pupil's mathematics device, is learning although solving The problem of whispering to each other when raw answer, mutually see answer, but whole device can only be used as student's answer, occupy in classroom Additional space when needing student's answer every time, will move whole device on dais to, use is very inconvenient.

Utility model content

The purpose of this utility model is to solve that deficiency exists in the prior art, and provides a kind of easy to use, is not take up volume The blackboard with answering device of the external space.

The utility model is achieved through the following technical solutions:

I.e. a kind of blackboard with answering device, including two columns and blackboard, column lower end are equipped with universal wheel, blackboard packet Blackboard and lower blackboard are included, upper blackboard is fixed on metope, and the wall of upper blackboard on both sides is equipped with guide rail, the two sides point of lower blackboard It does not set there are two pulley, pulley is located in guide rail, is equipped with caging bolt across the side wall of guide rail, is equipped with limit between two columns Bar, the upper end of gag lever post are equipped with answering device, and answering device is located at the lower section of upper blackboard, and answering device includes two and does topic plate one Topic plate two is done with two, two are done the inside that topic plate one is connected in two columns by hinge respectively, are done topic plate two and are passed through hinge It is connected in the outside for doing topic plate one.

Answering device is incorporated on blackboard by the utility model, is not taken up extra space, and lower blackboard can slide up and down, Slide into top, so that it may by answering device pull out for student's answer, lower blackboard slide into lower section, whole device be exactly one just Normal blackboard, it is very easy to use.

Further preferably, described do offers hole on topic two lower end surface of plate, is symmetrically opened up on gag lever post there are two threaded hole, Clamping screw is equipped in threaded hole.When using answering device, Question answering board is positioned, facilitates student's answer.

Further preferably, the rear surface of the lower blackboard is higher than the front surface of upper blackboard, guarantees the smooth of lower blackboard sliding, And the writing on the blackboard content on blackboard will not be wiped out.

Compared with prior art, beneficial effect possessed by the utility model is:

1, answering device is incorporated on blackboard by the utility model, is not taken up extra space, and lower blackboard can go up downslide It is dynamic, slide into top, so that it may pull out answering device for student's answer, lower blackboard slides into lower section, and whole device is exactly one A normal blackboard, it is very easy to use.

2, it does and offers hole on topic two lower end surface of plate, symmetrically opened up on gag lever post there are two threaded hole, be equipped in threaded hole Clamping screw.When using answering device, Question answering board is positioned, facilitates student's answer.

3, the rear surface of lower blackboard is higher than the front surface of upper blackboard, guarantees the smooth of lower blackboard sliding, and will not wipe out Writing on the blackboard content on upper blackboard.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the cross section structure schematic diagram of A-A in Fig. 1.

In figure: 1, column；2, universal wheel；3, gag lever post；4, topic plate one is done；5, topic plate two is done；6, clamping screw；7, upper black Plate；8, guide rail；9, lower blackboard；10, pulley；11, caging bolt；12, hinge.

Specific embodiment

Below against attached drawing, specific embodiment of the present utility model is described in further detail.

A kind of blackboard with answering device as shown in Figure 1 and Figure 2, including two columns 1 and blackboard, 1 lower end of column are set There is universal wheel 2, blackboard includes upper blackboard 7 and lower blackboard 9, and upper blackboard 7 is fixed on metope, and the rear surface of lower blackboard 9 is higher than upper The wall of the front surface of blackboard 7, upper 7 two sides of blackboard is equipped with guide rail 8, and the two sides of lower blackboard 9 are respectively equipped with two pulleys 10, sliding Wheel 10 is located in guide rail 8, is equipped with caging bolt 11 across the side wall of guide rail 8, is equipped with gag lever post 3, gag lever post between two columns 1 3 upper end is equipped with answering device, and answering device is located at the lower section of upper blackboard 7, and answering device includes two and is topic plate 1 and two Topic plate 25 is done, two are done the inside that topic plate 1 is connected in two columns 1 by hinge 12 respectively, are done topic plate 25 and are passed through hinge 12 are connected in the outside for doing topic plate 1, do and offering hole on topic 25 lower end surface of plate, are symmetrically opened up on gag lever post 3 there are two screw thread Hole, threaded hole is interior to be equipped with clamping screw 6.

The course of work:

Teacher says class hour, and lower blackboard 9 is located at lower end, and teacher can be normally carried out writing on the blackboard on upper blackboard 7 and lower blackboard 9 and award Class, when needing student's answer, writing on the blackboard goes out some formulas to teacher on lower blackboard 9 in advance, and lower blackboard 9 is then slided into top, Rotary spacing bolt 11 limits lower blackboard 9, finally pulls out and does topic plate 1 and do topic plate 25, rotation lock bolt 6 is right Topic plate 25 is done to be limited, student can the answer on doing topic plate, while for four student's answers, and from each other It can't see the content done on topic plate.

Term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" in the description of the present invention, The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new Type rather than require the utility model that must be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.

Claims

1. a kind of blackboard with answering device, including two columns (1) and blackboard, column (1) lower end is equipped with universal wheel (2), It is characterized by: the blackboard includes upper blackboard (7) and lower blackboard (9), upper blackboard (7) is fixed on metope, upper blackboard (7) two The wall of side is equipped with guide rail (8), and the two sides of lower blackboard (9) are respectively equipped with two pulleys (10), and pulley (10) is located at guide rail (8) Interior, the side wall for passing through guide rail (8) is equipped with caging bolt (11), is equipped with gag lever post (3) between two columns (1), gag lever post (3) Upper end is equipped with answering device, and answering device is located at the lower section of upper blackboard (7), and answering device includes two and does topic plate one (4) and two A to do topic plate two (5), two are done the inside that topic plate one (4) is connected in two columns (1) by hinge (12) respectively, do topic plate two (5) outside for doing topic plate one (4) is connected in by hinge (12).

2. the blackboard according to claim 1 with answering device, it is characterised in that: described to do topic plate two (5) lower end surface On offer hole, symmetrically opened up on gag lever post (3) there are two threaded hole, be equipped with clamping screw (6) in threaded hole.

3. the blackboard according to claim 1 with answering device, it is characterised in that: the rear surface of the lower blackboard (9) Higher than the front surface of upper blackboard (7).