CN105946402A

CN105946402A - Multifunctional blackboard

Info

Publication number: CN105946402A
Application number: CN201610579711.8A
Authority: CN
Inventors: 刘飞
Original assignee: Wanxiang Design Jiangsu Co Ltd
Current assignee: Wanxiang Design Jiangsu Co Ltd
Priority date: 2016-07-21
Filing date: 2016-07-21
Publication date: 2016-09-21

Abstract

The invention relates to a multifunctional blackboard. Sliding rails are mounted at the upper end and the lower end of the blackboard. A drawing assembly is mounted between the upper sliding rail and the lower sliding rail in a sliding manner. The drawing assembly comprises a transversely-moving main shaft, wherein rolling wheels are mounted at the two ends of the transversely-moving main shaft; the transversely-moving main shaft is provided with a first sliding groove extending in the axial direction; a first rotating arm is slidingly mounted in the first sliding groove in the vertical direction; the first rotating arm is provided with a second sliding groove; and a second rotating arm is mounted in the second sliding groove in a sliding manner. The transversely-moving main shaft is provided with a third sliding groove which is in parallel with the first sliding groove and penetrates through the front side and the rear side. A sliding block is mounted in the third sliding groove in a sliding manner. Third insertion holes for allowing chalk to be inserted therein are formed in the sliding block in a uniformly-spaced manner in the vertical direction. It is quite convenient to use the blackboard to draw an arc line, a straight line and patterns of four-line-and-three-lattice; and compared with drawing conducted with a traditional drawing board and compasses, drawing operation is simplified, and thus teaching efficiency and teaching quality are improved.

Description

A kind of multi-functional blackboard

Technical field

The present invention relates to teaching equipment field, particularly to blackboard.

Background technology

Existing blackboard function singleness, it is impossible to meet teaching request.In English teaching, when needing the letter of the standard of teaching students to write, Need on blackboard, draw four line three lattice, can only be drawn one by one along drawing board by chalk, the spacing between setting-out trouble and lines Can only be the most equal.In mathematical education, during Geometric figure drawing, it is often necessary to draw straight line, camber line, currently mainly use compasses, Use inconvenience.

Summary of the invention

The problem existed for above-mentioned existing blackboard, applicant studies and improves, it is provided that a kind of multi-functional blackboard, facilitates English Language, mathematical education, draw the most convenient.

In order to solve the problems referred to above, the present invention uses following scheme:

A kind of multi-functional blackboard, the two ends up and down of this blackboard are provided with slide rail, are slidably fitted with charting component between upper and lower slide rail； Described charting component includes that two ends are provided with the transverse shifting main shaft of roller, and described transverse shifting main shaft has axially extended One chute, slides up and down in described first chute and is provided with the first cursor, and one end of the first cursor is rotatablely equipped with first turn Axle, described first rotating shaft is slidably mounted in described first chute, the other end of the first cursor have plant chalk first insert Hole, described first cursor can be completely accommodated in described first around the first axis of rotation to during with described transverse shifting main axis parallel In chute；Described first cursor is provided with the second chute, is slidably fitted with the second cursor in described second chute, second turn One end of swing arm is rotatablely equipped with the second rotating shaft, and described second rotating shaft is slidably mounted in described second chute, the second cursor The other end has the second jack of plant chalk, and described second cursor is around the second axis of rotation to time parallel with the first cursor Can be completely accommodated in described second chute.

Further improvement as technique scheme:

Described transverse shifting main shaft be provided with parallel with described first chute, through before and after the 3rd chute of side, the described 3rd is sliding Being slidably fitted with slide block in groove, on described slide block, upper and lower uniform intervals is provided with the 3rd jack of plant chalk.

The center of described first rotating shaft has the first axially extending bore, and the center of the second rotating shaft has the second axially extending bore.

The method have technical effect that:

The blackboard of the present invention, draws camber line, straight line and very convenient during four line three lattice, compares traditional drawing board, compasses are drawn, Simplify mapping operation, thus improve teaching efficiency and quality of instruction.

Accompanying drawing explanation

Fig. 1 is the use state diagram of the present invention.

Fig. 2 is the unused state figure of the present invention.

In figure: 1, slide rail；100, blackboard；2, roller；3, transverse shifting main shaft；31, the first chute；32, the 3rd is sliding Groove；4, the first cursor；41, the first jack；42, the second chute；5, the first rotating shaft；51, the first axially extending bore；6、 Second cursor；61, the second jack；7, the second rotating shaft；71, the second axially extending bore；8, slide block；81, the 3rd jack.

Detailed description of the invention

Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.

As shown in Figure 1 and Figure 2, the multi-functional blackboard of the present embodiment, the two ends up and down of this blackboard 100 are provided with slide rail 1, up and down It is slidably fitted with charting component between slide rail 1；Charting component includes that two ends are provided with the transverse shifting main shaft 3 of roller 2, laterally On mobile main shaft 3, there is axially extended first chute 31, the first chute 31 slides up and down the first cursor 4 is installed, the One end of one cursor 4 is rotatablely equipped with the first rotating shaft 5, and the first rotating shaft 5 is slidably mounted in the first chute 31, and first rotates The other end of arm 4 has the first jack 41 of plant chalk, and the first cursor 4 turns to and transverse shifting around the first rotating shaft 5 Can be completely accommodated in when main shaft 3 is parallel in first chute 31；First cursor 4 is provided with the second chute 42, the second chute 42 In be slidably fitted with the second cursor 6, one end of the second cursor 6 is rotatablely equipped with the second rotating shaft 7, and the second rotating shaft 7 is slided peace Being loaded in the second chute 42, the other end of the second cursor 6 has the second jack 61 of plant chalk, and the second cursor 6 encloses Can be completely accommodated in the second chute 42 when the second rotating shaft 7 turns to parallel with the first cursor 4.

Transverse shifting main shaft 3 be provided with parallel with the first chute 31, through before and after the 3rd chute 32 of side, the 3rd chute 32 In be slidably fitted with slide block 8, on slide block 8, upper and lower uniform intervals is provided with the 3rd jack 81 of plant chalk.When transverse shifting main shaft 3 along slide rail 1 move time, in slide block 8 plant chalk realize once draw out four line three lattice.

Finding the center of circle for convenience of when drawing camber line, the center of the first rotating shaft 5 has the first axially extending bore 51, in the second rotating shaft 7 The heart has the second axially extending bore 71.

As it is shown in figure 1, the first cursor 4 can directly draw out bigger camber line during use, the second cursor 6 can directly be drawn Go out less camber line；Transverse shifting main shaft 3 transverse shifting, the first cursor 4 slide up and down the regulation center of circle in the first chute 31 Position；Transverse shifting main shaft 3 transverse shifting, the first cursor 4 slide up and down in the first chute 31, the second cursor 6 exists Mobile regulation home position in second chute 42；After first cursor 4 combines with the second cursor 6, with the first rotating shaft 5 it is During the meeting camber line of center, the second cursor 6 slides in the second chute 42, regulates radius of curvature size.

When not using, as in figure 2 it is shown, the second cursor 6 is hidden to the second chute 42 after rotating；First cursor 4 rotates After hide to the first chute 31.

Embodiment provided above is the better embodiment of the present invention, is only used for the convenient explanation present invention, not appoints the present invention What pro forma restriction, has usually intellectual, if without departing from the carried technical characteristic of the present invention in any art In the range of, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and without departing from this Bright technical characteristic content, all still falls within the range of the technology of the present invention feature.

Claims

1. a multi-functional blackboard, it is characterised in that: the two ends up and down of this blackboard (100) are provided with slide rail (1), upper downslide Rail is slidably fitted with charting component between (1)；Described charting component includes that two ends are provided with the transverse shifting main shaft of roller (2) (3), described transverse shifting main shaft (3) has axially extended first chute (31), in described first chute (31) Sliding up and down and be provided with the first cursor (4), one end of the first cursor (4) is rotatablely equipped with the first rotating shaft (5), described First rotating shaft (5) is slidably mounted in described first chute (31), and the other end of the first cursor (4) has plant chalk The first jack (41), described first cursor (4) turns to and described transverse shifting main shaft (3) around the first rotating shaft (5) Can be completely accommodated in time parallel in described first chute (31)；Described first cursor (4) is provided with the second chute (42), Being slidably fitted with the second cursor (6) in described second chute (42), one end of the second cursor (6) is rotatablely equipped with Two rotating shafts (7), described second rotating shaft (7) is slidably mounted in described second chute (42), the second cursor (6) another One end has second jack (61) of plant chalk, and described second cursor (6) turns to and the around the second rotating shaft (7) One cursor (4) can be completely accommodated in time parallel in described second chute (42).

Multi-functional blackboard the most according to claim 1, it is characterised in that: described transverse shifting main shaft (3) be provided with Described first chute (31) parallel, through before and after the 3rd chute (32) of side, peace of sliding in described 3rd chute (32) Equipped with slide block (8), the upper upper and lower uniform intervals of described slide block (8) is provided with the 3rd jack (81) of plant chalk.

Multi-functional blackboard the most according to claim 1, it is characterised in that: the center of described first rotating shaft (5) has One axially extending bore (51), the center of the second rotating shaft (7) has the second axially extending bore (71).