CN108597305A - A kind of board for teaching mathematics with dust-absorbing function - Google Patents

Abstract

A mathematics teaching board with a dust-absorbing function, comprising a support board, a height adjustment device is provided on the underside of the support board, the height adjustment device includes a support column, the bottom end of the support column is fixedly connected to the upper side of the base, and the support There is a groove with the opening facing upwards on the column, and a lower moving block is arranged in the groove. The cross section of the lower moving block is in the shape of a right-angled trapezoid, and the slope of the lower moving block is set upwards. The two sides of the lower moving block are fixedly connected. There is a moving rod, the left side of the supporting column is provided with a moving through hole, the left moving rod is located inside the moving through hole, and the right moving rod is connected with the driving device. The beneficial effect of the present invention is that the driving device drives the lower moving block to move to the right, and the lower moving block moves the upper moving block upward through the roller and the roller bracket, thereby driving the height of the support plate through the fixed column; when the driving device When the lower moving block is moved to the left, the descending of the upper moving block has been realized.

Description

A math teaching board with dust-absorbing function

technical field

The invention relates to the technical field of mathematics teaching boards, in particular to a mathematics teaching board with a dust-absorbing function.

Background technique

Teaching board, that is, the utensils used for writing demonstrations in the education industry. Usually, teaching boards are boards placed in classrooms or conference rooms. The content is written with chalk or water-based pens to play the role of explaining and demonstrating. Therefore, the importance of teaching boards in the classroom is self-evident.

The function of the teaching board in the prior art is comparatively simple, can only realize the function of writing, but can not realize other functions, and this has just caused the teacher to have more inconvenience in the teaching process, such as: when the teacher writes on the blackboard in the classroom Finally, the chalk on the blackboard needs to be erased. If a traditional blackboard eraser is used, the workload will be larger and more precious time in the classroom will be wasted; the angle of the existing teaching board cannot be adjusted, and its use effect is poor; in addition, when needed When displaying some albums to students, the existing teaching board is very inconvenient to hang; due to the large font on the blackboard, the content displayed on the teaching board at the same time is less, and it is difficult to store if the teaching board is enlarged; in the prior art, teaching The height of the board is generally fixed, which has certain limitations.

Contents of the invention

The object of the present invention is to provide a mathematics teaching board with a dust-absorbing function, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A mathematics teaching board with a dust-absorbing function, comprising a support board, a height adjustment device is provided on the underside of the support board, the height adjustment device includes a support column, the bottom end of the support column is fixedly connected to the upper side of the base, and the support There is a groove with the opening facing upwards on the column, and a lower moving block is arranged in the groove. The cross section of the lower moving block is in the shape of a right-angled trapezoid, and the slope of the lower moving block is set upwards. The two sides of the lower moving block are fixedly connected. There is a moving rod, a moving through hole is opened on the left side of the support column, the left moving rod is located inside the moving through hole, and the right moving rod is connected with the driving device; an upper moving block is arranged above the lower moving block, and the upper moving block The cross-section is in the shape of a right-angled trapezoid, the slope of the upper moving block is set downward, and a moving groove is opened on the slope of the upper moving block, and a roller is arranged in the moving groove, and the roller is fixedly connected with the slope of the lower moving block through a roller bracket. The upper moving block is fixedly connected with the support plate through the fixed column; the upper side of the support plate is connected with the plate body through the rotating shaft, the rear side of the plate body is fixedly provided with a first hinge, and the rear side of the support plate is provided with a second hinge, and the second hinge The upper part is fixedly connected with a threaded sleeve, the threaded sleeve is arranged obliquely, the threaded sleeve is internally threaded with a screw, and one end of the screw is rotatably connected with the first hinge; a through groove is opened in the body of the plate, and the top and bottom ends of the through groove are provided with There are two hidden plates between the rollers on the upper and lower sides; two sliding rods are symmetrically arranged on the upper and lower parts of the front side of the board, and the first sliding block is set on the sliding rod. A strip-shaped eraser is arranged between the first sliding blocks, and a plurality of second sliding blocks are also arranged on the sliding rod, and a fixing clip is fixedly connected to the lower side of the second sliding blocks; The ash-absorbing pipe is arranged in the ash-holding trough, and the ash-absorbing pipe is provided with ash-absorbing holes, and the ash-absorbing pipe is connected with the ash storage box located in the ash-holding trough, and an induced draft fan is arranged on the ash-absorbing pipe. .

As a further effect of the present invention: the drive device includes a horizontal column, and the horizontal column is provided with an installation groove with an opening facing left, an electromagnet is arranged in the installation groove, and a magnetic pole is arranged in the installation groove on the left side of the electromagnet. The left side is fixedly connected with the moving rod.

As a further effect of the present invention, two first guide grooves are symmetrically opened on the inner wall of the groove, and a first guide rod is arranged in the first guide groove, and the other end of the first guide rod is connected with the upper moving block. Fixed connection.

As a further effect of the present invention, two second guide grooves are symmetrically opened on the inner wall of the installation groove, a second guide rod is arranged in the second guide groove, and the other end of the second guide rod is fixedly connected with the moving rod.

As a further effect of the present invention, the slope of the lower moving block is arranged parallel to the slope of the upper moving block.

As a further effect of the present invention, the roller bracket is arranged vertically to the slope of the lower moving block.

As a further effect of the present invention, an adjustment handle is connected to the other end of the screw rod.

As a further effect of the present invention, sliding grooves are provided on both sides of the through groove, and a third sliding block is arranged in the sliding groove, and the third sliding block is fixedly connected with the hidden plate.

As a further effect of the present invention, a second locking screw is provided on the second sliding block.

The beneficial effect of the present invention is to use the drive device to drive the lower moving block to move to the right, and the lower moving block moves the upper moving block upward through the roller and the roller bracket, thereby driving the height of the support plate through the fixed column; when the driving device When the lower moving block is moved to the left, the decline of the upper moving block is realized;

Turn the screw, the screw pulls or pushes the board back or forward, so that the board rotates around the shaft, changing the inclination of the board, which is convenient to use, and can also solve the problem of unclear fonts caused by the reflection of the board; When you pull out the hidden board, you can continue to write on the hidden board. When not in use, push the hidden board in, which reduces the overall volume of the teaching board; In the precious time, spread the paper with a larger picture size on the surface of the board body, and use the fixing clip to clamp the paper to explain; use the induced draft fan to suck the dust from the dust suction hole into the dust storage box, preventing the dust from spreading everywhere Floating, effectively ensuring the health of the teacher.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of height adjustment device of the present invention;

Fig. 3 is the structural representation of drive device of the present invention;

Fig. 4 is a view along direction A in Fig. 1 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-Fig. 4, in the embodiment of the present invention, a kind of mathematics teaching board with dust-absorbing function comprises support plate 4, and the underside of described support plate 4 is provided with height adjustment device 2, and described height adjustment device 2 Including a support column 201, the bottom of the support column 201 is fixedly connected to the upper side of the base 1, and the support column 201 is provided with a groove 202 with the opening facing upwards, and a lower moving block 203 is arranged in the groove 202, and the lower moving block 203 The section is in the shape of a right-angled trapezoid, and the slope of the lower moving block 203 is set upwards. The two sides of the lower moving block 203 are fixedly connected with moving rods 205, and the left side of the support column 201 is provided with a moving through hole 204. The left moving rod 205 Located inside the moving through hole 204, the moving rod 205 on the right side is connected with the driving device 206; an upper moving block 207 is arranged above the lower moving block 203, and the section of the upper moving block 207 is a right-angled trapezoidal shape, and the upper moving block 207 The inclined surface is set downwards, and the inclined surface of the upper moving block 207 is provided with a moving groove, and a roller 2010 is arranged in the moving groove 209, and the roller 2010 is fixedly connected with the inclined surface of the lower moving block 203 through the roller bracket 2011, and the upper moving block 203 passes The fixed column 208 is fixedly connected with the support plate 4. When the height of the support plate 4 needs to be raised, the driving device 206 is used to drive the lower moving block 203 to move to the right, and the lower moving block 203 uses the roller 2010 and the roller bracket 2011 to make the upper moving block 207 moves upwards, so that the height of the support plate 4 is driven by the fixed column 208; when the driving device 206 moves the lower moving block 203 to the left, the lowering of the upper moving block 207 is realized;

The driving device 206 includes a horizontal column 2061, the horizontal column 2061 is provided with an installation groove 2062 with an opening facing left, an electromagnet 2063 is arranged in the installation groove 2062, and a magnetic pole 2064 is arranged in the installation groove 2062 on the left side of the electromagnet 2063. The left side of the magnetic pole 2064 is fixedly connected with the moving rod 205, and the electromagnet 2063 is fed with an electric current, and the electromagnet 2063 will generate the opposite magnetism with the magnetic pole 2064, thereby attracting the magnetic pole 2064, and the magnetic pole 2064 drives the moving block 203 to move through the moving rod 205. Move to the right; when the electromagnet 2063 is fed with a reverse current, the electromagnet 2063 will generate the same magnetism as the magnetic pole 2064, and the magnetic pole 2064 will be repelled, so that the lower moving block 203 will move to the left.

Two first guide grooves 2012 are symmetrically formed on the inner wall of the groove 202 , and a first guide rod 2013 is arranged in the first guide groove 2012 , and the other end of the first guide rod 2013 is fixedly connected with the upper moving block 207 .

Two second guide grooves 2065 are symmetrically formed on the inner wall of the installation groove 2062 , a second guide rod 2066 is arranged in the second guide groove 2065 , and the other end of the second guide rod 2066 is fixedly connected with the moving rod 205 .

The slope of the lower moving block 203 is arranged parallel to the slope of the upper moving block 207 .

The roller support 2011 is arranged vertically to the slope of the lower moving block 207 .

The upper side of the support plate 4 is connected with a plate body 7 through a rotating shaft 15, the rear side of the plate body 7 is fixedly provided with a first hinge 19, the rear side of the support plate 4 is provided with a second hinge 21, and the second hinge 21 is fixedly connected with a Threaded sleeve 22, threaded sleeve 22 is arranged obliquely, threaded sleeve 22 is internally threaded with screw rod 20, one end of screw rod 20 is connected with the first hinge 19 in rotation, rotates screw rod 20, screw rod 20 matches with threaded sleeve 22, screw rod 20 Pull or push the board body 7 to lean back or forward, so that the board body 7 rotates around the rotating shaft 15, changing the inclination angle of the board body 7, which is convenient to use, and can also solve the problem of unclear fonts caused by the reflection of the board body 7;

The plate body 7 is provided with a through groove 24, the top and the bottom of the through groove 24 are provided with balls 16, two hidden plates 6 are arranged between the rollers 16 on the upper and lower sides, and the hidden plates 6 are pulled out during use. , can continue to write on the blackboard on the hidden board 6, when not in use, push the hidden board 6 in, reducing the overall volume of the teaching board;

The upper and lower parts of the front side of the plate body 7 are symmetrically provided with two sliding rods 8, the first sliding block 9 is set on the sliding rod 8, and a strip is arranged between the two first sliding blocks 9. Shaped blackboard eraser 10 drives the movement of strip shaped blackboard eraser 10 by moving two first sliding blocks 9, and strip shaped blackboard eraser 10 is moved from the left side of board body 7 to the right side and just can carry out writing on the blackboard on the whole board body 7 Wiping, compared with traditional wiping, greatly improves the wiping efficiency and effectively saves valuable time in the classroom;

Also be provided with some second sliding blocks 25 on the sliding bar 9, the second sliding block 25 lower sides are fixedly connected with the fixing clip 26, the paper of larger picture format is tiled on the surface of the board body 7, utilize the fixing clip 26 Clamp the paper tightly to explain;

The bottom of the plate body 7 is provided with an ash-holding tank 5, and an ash-absorbing pipe 11 is arranged in the ash-holding tank 5, and an ash-absorbing hole 12 is provided on the ash-absorbing tube 11. The ash storage box 14 is connected, and the ash suction pipe 11 is arranged with an induced draft fan 13. After the dust wiped by the strip eraser 10 falls into the ash holding tank 5, the induced draft fan 12 is started, and the induced draft fan 12 draws the dust from the suction The ash holes 12 are sucked into the ash storage box 14, which prevents the dust from being scattered everywhere, and effectively ensures the health of the teacher.

Adjusting bolts 3 are arranged on the telescopic column 2 .

The other end of the screw rod 20 is connected with an adjustment handle 23 .

Both sides of the through groove 24 are provided with a sliding groove 17, and the third sliding block 18 is arranged in the sliding groove 7, and the third sliding block 18 is fixedly connected with the hidden plate 6, and the third sliding block 18 guides effect.

The second sliding block 25 is provided with a second locking set screw 27, which locks the second sliding block 25, and when the second sliding block 25 is not in use, loosen the second locking screw 27. Two locking setscrews 27, the second sliding block 25 is all pushed to the right end of the sliding bar 8, to avoid causing interference to the first sliding block 9.

The working principle of the present invention is: when the height of the support plate 4 needs to be adjusted, the electromagnet 2063 is fed with a current, and the electromagnet 2063 will generate the opposite magnetism to the magnetic pole 2064, thereby attracting the magnetic pole 2064, and the magnetic pole 2064 passes through the moving rod 205 Drive the lower moving block 203 to move to the right; when the electromagnet 2063 is fed with a reverse current, the electromagnet 2063 will generate the same magnetism as the magnetic pole 2064, and the magnetic pole 2064 is repelled, so that the lower moving block 203 moves to the left; Utilize driving device 206 to drive lower moving block 203 to move to the right side, and lower moving block 203 moves upper moving block 207 upwards through roller 2010 and roller support 2011, thereby drives the raising of supporting plate 4 heights by fixing column 208; When the driving device 206 moved the lower moving block 203 to the left, the lowering of the upper moving block 207 was realized;

Rotate the screw rod 20, the screw rod 20 is matched with the threaded sleeve 22, the screw rod 20 pulls or pushes the plate body 7 to tilt back or forward, so that the plate body 7 rotates around the rotating shaft 15, changing the inclination angle of the plate body 7, which is convenient to use and also It can solve the problem of unclear fonts caused by the reflection of the board body 7; pull out the hidden board 6 when in use, and you can continue to write on the hidden board 6, and push the hidden board 6 in when not in use, reducing the teaching time The overall volume of the board; the movement of the strip eraser 10 is driven by moving two first sliding blocks 9, and the strip eraser 10 is moved from the left side of the board body 7 to the right side and the writing on the blackboard on the whole board body 7 can be adjusted. Wipe, compared with traditional wiping, greatly improves the wiping efficiency, and effectively saves valuable time in the classroom; spread the paper with a larger picture size on the surface of the board body 7, and use the fixing clip 26 to clamp the paper to explain; After the dust wiped by the strip eraser 10 falls in the ash trough 5, the induced draft fan 12 is started, and the induced draft fan 12 sucks the dust from the dust suction hole 12 into the ash storage box 14, preventing the dust from being scattered everywhere, effectively ensuring the teacher's health.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. a kind of board for teaching mathematics with dust-absorbing function, including support plate, which is characterized in that be provided on the downside of the support plate Height adjustment device, the height adjustment device include support column, are fixedly connected on the upside of support column bottom end and pedestal, the support The groove of opening up setting is offered on column, and lower movable block is provided in groove, lower movable block section is in the shape of a right-angled ladder, and The inclined-plane of lower movable block is arranged upward, and the both sides of the lower movable block are fixedly connected with mobile bar, and shifting is offered on the left of support column Dynamic through-hole, left side mobile bar are located inside mobile through-hole, and the mobile bar on right side is connected with driving device；On the lower movable block Side is provided with movable block, and the section of upper movable block is in the shape of a right-angled ladder, and the inclined-plane of upper movable block is arranged downward, and upper movable block Inclined-plane on offer shifting chute, idler wheel is provided in shifting chute, idler wheel is fixed by the inclined-plane of rolling wheel support and lower movable block Connection, the upper movable block are fixedly connected by fixed column with support plate；Plate body is connected with by shaft on the upside of the support plate, First axle is fixed on rear side of plate body, the rear side of support plate is equipped with second hinge, thread bush is fixedly connected in second hinge Cylinder, screw shell are obliquely installed, and screw shell internal thread is connected with screw rod, and screw rod one end is rotatablely connected with first axle；It is described Straight slot is offered in plate body, the top and bottom end of straight slot are provided with ball, two pieces of hide plates are equipped between the idler wheel of upper and lower both sides； The upper and lower part of the plate body leading flank is arranged with two sliding bars, slides and is arranged with the first slipping block on bar, two the It is equipped with strip blackboard eraser between one slipping block, slides and is additionally provided with several second slipping blocks on bar, it is fixed on the downside of the second slipping block to connect It is connected to geometrical clamp；The plate body bottom, which is equipped with, holds ash-pit, holds in ash-pit and is disposed with ash sucking tube, ash absorbing hole is offered on ash sucking tube, The ash sucking tube is connected with positioned at the ash storage box held in ash-pit, and air-introduced machine is disposed on the ash sucking tube.

2. a kind of board for teaching mathematics with dust-absorbing function according to claim 1, which is characterized in that the driving device Including horizontal columns, the mounting groove being open towards left setting is offered in horizontal columns, and electromagnet, electromagnet left side are provided in mounting groove Mounting groove in be provided with magnetic pole, be fixedly connected with mobile bar on the left of magnetic pole.

3. a kind of board for teaching mathematics with dust-absorbing function according to claim 1, which is characterized in that on the inside of the groove It is symmetrically opened up on wall there are two the first guide groove, is provided with the first guide rod in the first guide groove, first guide rod is another End is fixedly connected with upper movable block.

4. a kind of board for teaching mathematics with dust-absorbing function according to claim 2, which is characterized in that in the mounting groove It is symmetrically opened up on side wall there are two the second guide groove, the second guide rod, the second guide rod other end is provided in the second guide groove It is fixedly connected with mobile bar.

5. a kind of board for teaching mathematics with dust-absorbing function according to claim 1, which is characterized in that the lower movable block The inclined-plane on inclined-plane and upper movable block be arranged in parallel.

6. a kind of board for teaching mathematics with dust-absorbing function according to claim 1 or 5, which is characterized in that the idler wheel The inclined-plane of holder and lower movable block is vertically arranged.

7. a kind of board for teaching mathematics with dust-absorbing function according to claim 1, which is characterized in that the screw rod it is another One end is connected with regulation handle.

8. a kind of board for teaching mathematics with dust-absorbing function according to claim 1, which is characterized in that the two of the straight slot Side offers slippage slot, is equipped with third slipping block in slippage slot, third slipping block is fixedly connected with hide plate.

9. a kind of board for teaching mathematics with dust-absorbing function according to claim 8, which is characterized in that second sliding Block is equipped with the second lock holding screw.