CN215730268U - Multimedia blackboard for self-examination - Google Patents

Abstract

The utility model belongs to the field of learning tools, and particularly relates to a multimedia blackboard for self-examination, which comprises a blackboard main body; the blackboard main body comprises a blackboard body and a screen; the blackboard body is arranged at the upper end of the blackboard main body; the screen is arranged at the front end of the board body; the bottom of the blackboard main body is provided with a lifting mechanism; the lifting mechanism comprises a connecting plate block, a positioning block, a threaded rod, a first conical tooth, a second conical tooth and a rotating rod; the connecting plate block is arranged at the bottom of the plate body; the positioning block is arranged at one end of the connecting plate block; the threaded rod is movably connected inside the connecting plate block; the first conical teeth are movably connected to the lower end of the threaded rod; the adoption sets up elevating system, has realized driving the body of the board and has carried out the function that lift adjustment used, sets up clean mechanism through the surface at blackboard main part, has realized carrying out quick clear function to the screen, through being provided with disassembly body, has realized the function of convenient to detach cleaning brush.

Description

Multimedia blackboard for self-examination

Technical Field

The utility model relates to the field of learning tools, in particular to a multimedia blackboard for self-examination.

Background

The blackboard is a teaching tool, can repeatedly write characters on a plane, is used for recording and teaching, and is widely applied to the education and learning industry.

In the prior art, the blackboard is combined with multimedia following the development of science and technology, adopts the display screen to use, has the advantages of data storage and the like while putting an end to chalk dust, and is widely applied to the education industry of examinees.

The existing multimedia blackboard for the self-examination cannot adapt to students with different heights to be adjusted and used in the using process, and the watching of short students is influenced; therefore, a multimedia blackboard for self-examination is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art, the utility model provides a multimedia blackboard for self-examination, which cannot be adjusted and used by students with different heights.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a multimedia blackboard for self-examination, which comprises a blackboard main body; the blackboard main body comprises a blackboard body and a screen; the blackboard body is arranged at the upper end of the blackboard main body; the screen is arranged at the front end of the board body; the bottom of the blackboard main body is provided with a lifting mechanism; the lifting mechanism comprises a connecting plate block, a positioning block, a threaded rod, a first conical tooth, a second conical tooth and a rotating rod; the connecting plate block is arranged at the bottom of the plate body; the positioning block is arranged at one end of the connecting plate block; the threaded rod is movably connected inside the connecting plate block; the first conical teeth are movably connected to the lower end of the threaded rod; the second conical teeth are movably connected to the lower ends of the first conical teeth; the rotating rod is arranged at one end of the second conical tooth and is arranged at the bottom of the blackboard main body through the lifting mechanism, so that the function of driving the blackboard body to be lifted and adjusted for use is realized.

Preferably, the front end of the blackboard main body is provided with a cleaning mechanism; the cleaning mechanism comprises a lug, a ball, a sliding block, a brush rod and a cleaning brush; the lug is arranged on the outer surface of the blackboard main body; the ball is movably connected inside the lug; the sliding block is movably connected to the outer side of the convex block; the brush rod is fixedly connected to the upper end of the sliding block; the cleaning brush is arranged in the brush rod, and the cleaning mechanism is arranged on the outer surface of the blackboard main body, so that the function of quickly cleaning the screen is realized.

Preferably, a dismounting mechanism is arranged inside the cleaning mechanism; the disassembling mechanism comprises a brush head, a plug, a bolt groove, a spring and a spring limiting groove; the brush head is arranged inside the brush rod; the plug is inserted in the brush rod; the spring is arranged inside the brush rod; the bolt groove is arranged inside the brush head and the brush rod; the limiting spring groove is arranged in the brush rod, and the disassembling mechanism is arranged in the cleaning mechanism, so that the function of conveniently disassembling the cleaning brush is realized.

Preferably, the shape of the inner part of the connecting plate block is fitted with the shape of the outer surface of the threaded rod; the shape of one end of the positioning block is attached to the shape of the inside of the connecting plate block; the shape of first tapered tooth is laminated with the shape of second tapered tooth mutually, through the handle of rotating the installation of bull stick front end for second tapered tooth produces and rotates, thereby drives first tapered tooth and rotates, has set up the threaded rod and has rotated on first tapered tooth, laminates with the line of threaded rod surface mutually through the inside line of even plate for it is movable from top to bottom to drive even plate.

Preferably, the shape of the bump is fitted with the shape of the inside of the slider; the shape of the ball is fitted with the inner shape of the sliding block; the shape of cleaning brush and the laminating of screen surface shape mutually, set up the one end at the lug through the slider for the slider drives the brush-holder stud and slides, and the inside of lug has set up the ball, makes the more light slip in the inside of slider, through the handle of pulling brush-holder stud upper end installation, makes to drive cleaning brush and slides, and the shape through cleaning brush is laminated with the surface shape of screen mutually, makes the screen to blackboard main part surface setting clean.

Preferably, the shape of the brush head is matched with the inner shape of the brush rod; the shape of the plug is matched with that of the bolt groove; the shape of spring and the shape in limit spring groove cooperate, with the brush head put into the inside back of brush-holder stud, insert the bolt in the brush-holder stud that brush-holder stud and brush head inside set up, will brush the head fixed, through the position of limit spring groove present spring for spring rebound effect itself has played and has prevented that the bolt from losing.

The utility model has the advantages that:

1. the utility model adopts the structural design that the lifting mechanism is arranged at the bottom of the blackboard body, the handle arranged at the front end of the rotating rod is rotated to enable the second conical tooth to rotate so as to drive the first conical tooth to rotate, the threaded rod is arranged at the upper end of the first conical tooth to rotate, the grains inside the connecting plate block are attached to the grains on the outer surface of the threaded rod, so that the connecting plate block is driven to move up and down, the positioning block is arranged to limit the motion track of the connecting plate block, the connecting plate block slides up and down at one end of the positioning block, and the two groups of threaded rods, the first conical tooth and the second conical tooth are arranged to play a role of stabilizing the lifting movement, thereby realizing the function of driving the plate body to carry out lifting adjustment and use, solving the problem that the height of short classmates is influenced during the use due to the incapability of adjustment and use of different classmates, thereby improving the compatibility of the blackboard main body to students with different heights;

2. according to the utility model, through the structural design that the cleaning mechanism is arranged on the outer surface of the blackboard main body, the sliding block is arranged at one end of the protruding block, so that the sliding block drives the brush rod to slide, the ball is arranged in the protruding block, the sliding block can slide in the sliding block more easily, the cleaning brush is driven to slide by pulling the handle arranged at the upper end of the brush rod, the shape of the cleaning brush is matched with the shape of the outer surface of the screen, the screen arranged on the outer surface of the blackboard main body is cleaned, dust on the outer surface is swept away, the function of quickly cleaning the screen is realized, the problem that the screen is difficult to clean when the dust falls into the screen is solved, the cleaning speed is improved, and the classroom efficiency is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an apparatus according to a first embodiment;

FIG. 2 is a front view of the apparatus according to the first embodiment;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the first embodiment;

FIG. 4 is a schematic cross-sectional side view of a cleaning mechanism according to a first embodiment;

FIG. 5 is an enlarged structural view of B in FIG. 4 according to the first embodiment;

fig. 6 is a schematic sectional structure view of the detaching mechanism of the second embodiment.

In the figure: 1. a blackboard main body; 11. a board body; 12. a screen; 2. a lifting mechanism; 21. connecting plates; 22. positioning blocks; 23. a threaded rod; 24. a first tapered tooth; 25. second tapered teeth; 26. a rotating rod; 3. a cleaning mechanism; 31. a bump; 32. a ball bearing; 33. a slider; 34. a brush bar; 35. a cleaning brush; 4. a disassembly mechanism; 41. a brush head; 42. plugging; 43. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 5, a multimedia blackboard for self-examination includes a blackboard body 1; the blackboard main body 1 comprises a blackboard body 11 and a screen 12; the blackboard body 11 is arranged at the upper end of the blackboard main body 1; the screen 12 is arranged at the front end of the board body 11; the bottom of the blackboard main body 1 is provided with a lifting mechanism 2; the lifting mechanism 2 comprises a connecting plate block 21, a positioning block 22, a threaded rod 23, a first conical tooth 24, a second conical tooth 25 and a rotating rod 26; the connecting plate block 21 is arranged at the bottom of the plate body 11; the positioning block 22 is arranged at one end of the connecting block 21; the threaded rod 23 is movably connected inside the connecting plate block 21; the first conical teeth 24 are movably connected to the lower end of the threaded rod 23; the second conical teeth 25 are movably connected to the lower ends of the first conical teeth 24; the rotating rod 26 is arranged at one end of the second conical tooth 25;

when the blackboard works, multimedia is displayed through the screen 12 for teaching, the blackboard is installed at the bottom of the blackboard main body 1 through the structural design of the lifting mechanism 2, the handle installed at the front end of the rotating rod 26 is rotated, the second conical tooth 25 is rotated to drive the first conical tooth 24 to rotate, the threaded rod 23 is arranged at the upper end of the first conical tooth 24 to rotate, the grains inside the connecting plate block 21 are attached to the grains on the outer surface of the threaded rod 23, the connecting plate block 21 is driven to move up and down, the positioning block 22 is installed to limit the movement track of the connecting plate block 21, the connecting plate block 21 slides up and down at one end of the positioning block 22, the effect of stabilizing lifting movement is achieved through the arrangement of the two groups of threaded rods 23, the first conical tooth 24 and the second conical tooth 25, the function of driving the plate body 11 to be used for lifting adjustment is realized, and the problem in the use process is solved, can not adapt to students with different heights to adjust and use, and influences the problem that the short students watch, thereby improving the compatibility of the blackboard main body 1 and leading the blackboard main body to be more convenient to use after being adjusted.

The front end of the blackboard main body 1 is provided with a cleaning mechanism 3; the cleaning mechanism 3 comprises a lug 31, a ball 32, a sliding block 33, a brush rod 34 and a cleaning brush 35; the projection 31 is arranged on the outer surface of the blackboard main body 1; the ball 32 is movably connected inside the lug 31; the sliding block 33 is movably connected to the outer side of the convex block 31; the brush rod 34 is fixedly connected to the upper end of the sliding block 33; the cleaning brush 35 is disposed inside the brush bar 34;

the during operation, through the structural design who sets up clean mechanism 3 at blackboard main part 1's surface, set up the one end at lug 31 through slider 33, make slider 33 drive brush-holder stud 34 slide, the inside of lug 31 has set up ball 32, make the inside of more light slip at slider 33, handle through the installation of pulling brush-holder stud 34 upper end, make to drive cleaning brush 35 and slide, the surface shape through cleaning brush 35 laminates mutually with screen 12, make the screen 12 to blackboard main part 1 surface setting clean, sweep the dust of surface, the function of carrying out quick clear to screen 12 has been realized, it falls into the dust and is difficult to carry out clear problem to have solved screen 12, thereby cleaning speed has been improved, classroom efficiency has been saved.

A dismounting mechanism 4 is arranged in the cleaning mechanism 3; the disassembling mechanism 4 comprises a brush head 41, a plug 42, a plug groove, a spring 43 and a spring limiting groove; the brush head 41 is arranged inside the brush rod 34; the plug 42 is inserted in the brush rod 34; the spring 43 is disposed inside the brush bar 34; the bolt grooves are arranged inside the brush head 41 and the brush rod 34; the spring limiting groove is arranged inside the brush rod 34;

the during operation, through the structural design at 3 internally mounted disassembly body 4 of clean mechanism, put into brush-holder stud 34's inside back with brush head 41, insert brush-holder stud 42 in the bolt groove of brush-holder stud 34 with the inside setting of brush-holder stud 41, it is fixed with brush head 41, through the position of limit spring groove present spring 43, make spring 43 rebound effect itself, the effect that prevents plug 42 from losing has been played, thereby realized the function of convenient to detach cleaning brush 35, it gets off to dismantle cleaning brush 35 and changes abluent problem to have solved to be difficult to, thereby reached the abluent effect of convenient dismantlement.

The shape of the inner part of the connecting plate block 21 is fit with the shape of the outer surface of the threaded rod 23; the shape of one end of the positioning block 22 is fitted with the shape of the inside of the connecting plate block 21; the shape of the first conical tooth 24 is matched with that of the second conical tooth 25;

during operation, the line through the inside line of even plate 21 is laminated with the line of threaded rod 23 surface mutually for drive even plate 21 is movable from top to bottom, and installed locating piece 22 and carried on spacingly to the movement track of even plate 21, even plate 21 slides from top to bottom in the one end of locating piece 22, and through setting up two sets of threaded rods 23, first tapered tooth 24 and second tapered tooth 25, has played the effect of stabilizing the lift activity, has realized driving plate 11 and has carried out the function that lift adjustment used.

The shape of the lug 31 is matched with the shape of the inner part of the sliding block 33; the shape of the ball 32 is matched with the inner shape of the sliding block 33; the shape of the cleaning brush 35 is matched with the shape of the outer surface of the screen 12;

the during operation, set up the one end at lug 31 through slider 33, make slider 33 drive brush-holder stud 34 slide, the inside of lug 31 has set up ball 32, make the inside of more light slip at slider 33, handle through the installation of pulling brush-holder stud 34 upper end, make to drive cleaning brush 35 and slide, the surface shape through shape and screen 12 of cleaning brush 35 laminates mutually, make the screen 12 to blackboard main part 1 surface setting clean, sweep the dust of surface, the function of carrying out quick clear to screen 12 has been realized.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present invention, the shape of the brush head 41 is matched with the inner shape of the brush bar 34; the shape of the plug 42 is matched with that of the bolt groove; the shape of the spring 43 is matched with that of the spring limiting groove; put into the inside back of brush pole 34 with brush head 41, insert the bolt 42 in the inside keyway that sets up of brush pole 34 and brush head 41, it is fixed with brush head 41, through the present position of spring 43 of limit spring groove for spring 43 resilience effect itself has played the effect that prevents that bolt 42 from losing, thereby has realized the function of convenient to detach cleaning brush 35.

The working principle, through the screen 12 to display multimedia for teaching, through the structural design of the lifting mechanism 2 installed at the bottom of the blackboard main body 1, through the handle installed at the front end of the rotating rod 26, the second conical tooth 25 is rotated to drive the first conical tooth 24 to rotate, the threaded rod 23 is arranged at the upper end of the first conical tooth 24 to rotate, through the joint of the grains inside the connecting plate 21 and the grains on the outer surface of the threaded rod 23, the connecting plate 21 is driven to move up and down, and the positioning block 22 is installed to limit the movement track of the connecting plate 21, the connecting plate 21 slides up and down at one end of the positioning block 22, and through the two groups of threaded rods 23, the first conical tooth 24 and the second conical tooth 25, the effect of stabilizing the lifting activity is achieved, the function of driving the plate body 11 to be used for lifting adjustment is realized, and the problem in the using process is solved, the blackboard can not adapt to students with different heights to be adjusted and used, and the problem that the students with different heights are influenced to watch is solved, so that the compatibility of the blackboard main body 1 is improved, and the blackboard main body is more convenient to use after being adjusted; through the structural design who sets up clean mechanism 3 at blackboard main part 1's surface, set up the one end at lug 31 through slider 33, make slider 33 drive brush-holder stud 34 and slide, the inside of lug 31 has set up ball 32, make the inside at slider 33 of more light slip, handle through the installation of pulling brush-holder stud 34 upper end, make to drive cleaning brush 35 and slide, the surface shape through cleaning brush 35 and screen 12 laminates mutually, make screen 12 to blackboard main part 1 surface setting clean, sweep the dust of surface, the function of carrying out quick clear to screen 12 has been realized, it falls into the dust and is difficult to carry out clear problem to have solved screen 12, thereby cleaning speed has been improved, classroom efficiency has been saved.

Through the structural design at 3 internally mounted disassembly body 4 of cleaning mechanism, put into brush-holder stud 34's inside back with brush head 41, insert brush-holder stud 42 in the keyway of brush-holder stud 34 with the inside setting of brush-holder stud 41, it is fixed with brush head 41, through the position of limit spring groove present spring 43, make spring 43 resilience effect itself, played and prevented that plug-holder stud 42 from losing, thereby realized the function of convenient to detach cleaning brush 35, it gets off to dismantle cleaning brush 35 and changes abluent problem to have solved to be difficult to, thereby reached the abluent effect of convenient dismantlement.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (6)

1. A multimedia blackboard for self-examination is characterized in that: comprises a blackboard main body (1); the blackboard body (1) comprises a blackboard body (11) and a screen (12); the blackboard body (11) is arranged at the upper end of the blackboard main body (1); the screen (12) is arranged at the front end of the plate body (11); the bottom of the blackboard main body (1) is provided with a lifting mechanism (2);

the lifting mechanism (2) comprises a connecting plate block (21), a positioning block (22), a threaded rod (23), first conical teeth (24), second conical teeth (25) and a rotating rod (26); the connecting plate block (21) is arranged at the bottom of the plate body (11); the positioning block (22) is arranged at one end of the connecting plate block (21); the threaded rod (23) is movably connected inside the connecting plate block (21); the first conical teeth (24) are movably connected to the lower end of the threaded rod (23); the second conical teeth (25) are movably connected to the lower ends of the first conical teeth (24); the rotating rod (26) is arranged at one end of the second conical tooth (25).

2. The multimedia blackboard for self-study according to claim 1, characterized in that: the front end of the blackboard main body (1) is provided with a cleaning mechanism (3); the cleaning mechanism (3) comprises a convex block (31), a ball (32), a sliding block (33), a brush rod (34) and a cleaning brush (35); the lug (31) is arranged on the outer surface of the blackboard main body (1); the ball (32) is movably connected inside the lug (31); the sliding block (33) is movably connected to the outer side of the convex block (31); the brush rod (34) is fixedly connected to the upper end of the sliding block (33); the cleaning brush (35) is arranged inside the brush rod (34).

3. The multimedia blackboard for self-study according to claim 2, characterized in that: a dismounting mechanism (4) is arranged in the cleaning mechanism (3); the disassembling mechanism (4) comprises a brush head (41), a plug (42), a plug groove, a spring (43) and a spring limiting groove; the brush head (41) is arranged inside the brush rod (34); the plug (42) is inserted in the brush rod (34); the spring (43) is arranged inside the brush rod (34); the bolt groove is arranged inside the brush head (41) and the brush rod (34); the spring limiting groove is arranged inside the brush rod (34).

4. The multimedia blackboard for self-study according to claim 3, characterized in that: the shape of the inner part of the connecting plate block (21) is attached to the shape of the outer surface of the threaded rod (23); the shape of one end of the positioning block (22) is attached to the shape of the inside of the connecting plate block (21); the shape of the first conical tooth (24) is matched with the shape of the second conical tooth (25).

5. The multimedia blackboard for self-study according to claim 4, characterized in that: the shape of the convex block (31) is fit with the shape of the inner part of the sliding block (33); the shape of the ball (32) is fit with the inner shape of the sliding block (33); the shape of the cleaning brush (35) is matched with the shape of the outer surface of the screen (12).

6. The multimedia blackboard for self-study according to claim 5, characterized in that: the shape of the brush head (41) is matched with the inner shape of the brush rod (34); the shape of the plug (42) is matched with that of the bolt groove; the shape of the spring (43) is matched with that of the spring limiting groove.

Images