CN210501999U

CN210501999U - Blackboard is used in teaching with dust absorption function

Info

Publication number: CN210501999U
Application number: CN201920875219.4U
Authority: CN
Inventors: 赵涛
Original assignee: Henan Vocational College of Water Conservancy and Environment
Current assignee: Henan Vocational College of Water Conservancy and Environment
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-05-12
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to the technical field of blackboards, and discloses a blackboard with dust absorption function for teaching, which comprises a fixed frame, wherein a blackboard body is embedded in the fixed frame, dust absorption heads are symmetrically fixed on the front surface of the fixed frame along a horizontal central line, two dust absorption heads are of a cuboid structure with a hollow structure, and a plurality of dust absorption holes are formed in the opposite sides of the two dust absorption heads; through the fixed dust absorption head of front surface symmetry at fixed frame, and at the upper and lower fixed surface dust collection box of fixed frame, the dust collection box is linked together through dust guide pipe and dust absorption head, when using, drive the rotation of the inside fan of dust collection box through first motor, thereby can lead to the inside production negative pressure of dust collection box, and then can inhale the dust collection box with the dust that the outside flies upward through dust absorption head and dust guide pipe, the function of dust absorption has been realized, the flying dust of avoiding the external world to fly upward brings certain influence to student and teacher's healthy.

Description

Blackboard is used in teaching with dust absorption function

Technical Field

The utility model relates to a blackboard technical field specifically is a blackboard is used in teaching with dust absorption function.

Background

The blackboard is not specially designated black face, it is a plane that can write repeatedly with the chalk in the traditional meaning, the face is hard, many be used for the teaching, the blackboard generally is made with plank or ground glass etc. can write on it with specific writing material such as chalk, mostly be black, dark green, white or beige, the blackboard generally is used for teaching work, in the teaching, the teacher writes the knowledge that needs the professor through the chalk and is used for explaining on the blackboard, and be convenient for student's viewing, the teaching work of teacher has been made things convenient for greatly to the appearance of blackboard.

However, the prior art has the following problems:

(1) when a teacher uses chalk to write on the blackboard, dust often flies, and the existing blackboard does not have a dust collection function, so that the flying dust easily affects the body of the student and the teacher to a certain extent.

(2) When the existing blackboard is used, the existing blackboard is generally fixed on the front surface of a classroom for use, and because the width of the blackboard is large, a partial area above the blackboard cannot be well utilized for teachers with not very high heights.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a blackboard is used in teaching with dust absorption function has solved current blackboard when using, can not absorb the dust that flies upward and when using, and to the not very high teacher of height, the problem of the subregion of blackboard top can not be by fine utilization.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a blackboard with dust absorption function for teaching comprises a fixed frame, a blackboard body is embedded in the fixed frame, and the front surface of the fixing frame is symmetrically fixed with dust collection heads along the horizontal center line, the two dust collection heads are of a cuboid structure with a hollow structure, and the opposite sides of the two dust suction heads are both provided with a plurality of dust suction holes which are uniformly distributed on the opposite sides of the two dust suction heads, dust collecting boxes are fixed at the center of the upper surface and the center of the lower surface of the fixing frame, dust guide pipes are fixed on the front surfaces of the two dust collecting boxes, one ends of the two dust guide pipes, which are far away from the dust collecting boxes, are respectively and fixedly connected with the opposite sides of the two dust collecting heads, the opposite sides of the two dust collecting boxes are respectively and fixedly provided with a first motor through screws, and the first motors are electrically connected with an external power supply, and one end of the output shaft of the first motor is positioned in the dust collection box and is fixed with a fan.

Preferably, a dust filter net is fixed inside the dust collection box below the fan, air outlet holes are symmetrically formed in the upper surface of the dust collection box, and the two air outlet holes are respectively located on two sides of the first motor.

Preferably, the equal welded fastening in both sides center department of fixed frame has the thread bush, just the below symmetry of fixed frame is equipped with the second motor, two the second motor all with external power source electric connection, and two the second motor is servo motor, two the rear surface of second motor all is fixed with the fixed plate, and two the output of second motor all is fixed with the threaded rod, two the threaded rod passes two respectively the thread bush and with two thread bush threaded connection.

Preferably, the top of threaded rod welded fastening has a stopper, the stopper is cake column structure, just the radius of stopper is greater than the radius of thread bush.

Preferably, the rear symmetry of fixed frame is equipped with the slide rail, just the rear surface symmetry of fixed frame rotates and is connected with the pulley, two the pulley is located two respectively the inside of slide rail.

Preferably, the length of the dust collection head is greater than that of the blackboard body.

(III) advantageous effects

The utility model provides a blackboard is used in teaching with dust absorption function possesses following beneficial effect:

(1) the utility model discloses a fixed dust absorption head of front surface symmetry at fixed frame, and at the upper and lower fixed surface dust collection box of fixed frame, the dust collection box is linked together through dust guide pipe and dust absorption head, when using, drive the rotation of the inside fan of dust collection box through first motor, thereby can lead to the inside production negative pressure of dust collection box, and then can inhale the dust collection box through dust absorption head and dust guide pipe with the dust that the outside flies upward, the function of dust absorption has been realized, the flying dust of avoiding the external world to fly upward brings certain influence to student and teacher's healthy.

(2) The utility model discloses an equal welded fastening thread bush in both sides center department of fixed frame, thread bush and threaded rod threaded connection, when using, drive corotation or the reversal of two threaded rods through two second motors to can adjust the height of blackboard body, to the not very high teacher of height, drive the rotation of threaded rod through the second motor, can be with the altitude mixture control of blackboard, thereby can make the partial region of blackboard top can be by fine utilization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the dust collecting case of the present invention;

FIG. 3 is a schematic perspective view of a vacuum cleaner head according to the present invention;

fig. 4 is a rear view structure diagram of the middle fixing frame of the present invention.

In the figure: 1. a fixing plate; 2. a threaded rod; 3. a threaded sleeve; 4. a limiting block; 5. a slide rail; 6. a dust collection head; 7. a first motor; 8. a dust guide pipe; 9. a dust collecting box; 10. a fixing frame; 11. a blackboard body; 12. a second motor; 13. a dust filter screen; 14. an air outlet; 15. a fan; 16. a dust collection hole; 17. a pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a blackboard with dust absorption function for teaching comprises a fixed frame 10, a blackboard body 11 is embedded in the fixed frame 10, dust absorption heads 6 are symmetrically fixed on the front surface of the fixed frame 10 along a horizontal central line, the two dust absorption heads 6 are of a cuboid structure with a hollow structure, a plurality of dust absorption holes 16 are formed in the opposite sides of the two dust absorption heads 6, the dust absorption holes 16 are uniformly distributed on the opposite sides of the two dust absorption heads 6, dust collection boxes 9 are fixed at the centers of the upper surface and the lower surface of the fixed frame 10, dust guide pipes 8 are fixed on the front surfaces of the two dust collection boxes 9, one ends of the two dust guide pipes 8 far away from the dust collection boxes 9 are respectively and fixedly connected with the back sides of the two dust absorption heads 6, first motors 7 are fixed on the back sides of the two dust collection boxes 9 through screws, the first motors 7 are electrically connected with an external power supply, and a fan 15 is fixed in the dust collection boxes 9 at one end of an output shaft of the first motors, when the dust collector is used, the first motor 7 drives the fan 15 to rotate, so that negative pressure can be formed in the dust collecting box 9, dust flying from the outside can be sucked into the dust collecting box 9 through the dust collecting head 6 and the dust guide pipe 8, the dust absorption function is realized, and certain influence on the body health of teachers and students caused by the dust flying from the outside is avoided.

Furthermore, a dust filtering net 13 is fixed in the dust collecting box 9 below the fan 15, air outlet holes 14 are symmetrically formed in the upper surface of the dust collecting box 9, the two air outlet holes 14 are respectively located on two sides of the first motor 7, dust can be filtered through the dust filtering net 13 in the using process, and clean air can be discharged through the two air outlet holes 14.

Further, the center of the two sides of the fixed frame 10 is welded and fixed with the threaded sleeve 3, the second motors 12 are symmetrically arranged below the fixed frame 10, the two second motors 12 are electrically connected with an external power supply, and the two second motors 12 are both servo motors, the rear surfaces of the two second motors 12 are both fixed with a fixing plate 1, and the output ends of the two second motors 12 are fixed with threaded rods 2, the two threaded rods 2 respectively penetrate through the two threaded sleeves 3 and are in threaded connection with the two threaded sleeves 3, the second motors 12 can be fixed on the wall surface through the fixing plate 1, then the second motor 12 drives the threaded rod 2 to rotate, thereby adjusting the height of the blackboard body 11, for teachers with not very high height, the second motor 12 drives the threaded rod 2 to rotate, therefore, the height of the blackboard body 11 can be adjusted to be low, and a teacher can conveniently utilize a part of the area above the blackboard body 11.

Further, the top welded fastening of threaded rod 2 has stopper 4, and stopper 4 is cake column structure, and stopper 4's radius is greater than the radius of thread bush 3, can avoid blackboard and threaded rod 2 to break away from each other through stopper 4.

Further, the rear symmetry of fixed frame 10 is equipped with slide rail 5, and the rear surface symmetry of fixed frame 10 rotates and is connected with pulley 17, and two pulleys 17 are located the inside of two slide rails 5 respectively, can make the more smooth the sliding of blackboard body 11 through the effect of pulley 17 and slide rail 5.

Further, the length of the dust suction head 6 is larger than that of the blackboard body 11, and dust on the blackboard body 11 can be sucked through the dust suction head 6.

To sum up, the utility model discloses a work flow: when in use, the first motor 7 drives the fan 15 to rotate, so that negative pressure can be formed inside the dust collection box 9, the dust flying from the outside can be sucked into the dust collecting box 9 through the dust collecting head 6 and the dust guide pipe 8, thereby realizing the function of absorbing dust, avoiding certain influence of the dust flying outside on the body health of teachers and students, and during the use process, the dust can be filtered through the dust filtering net 13, and clean air can be discharged through the two air outlet holes 14, meanwhile, in the using process, the second motor 12 drives the threaded rod 2 to rotate, so that the height of the blackboard body 11 can be adjusted, for teachers with not very high height, the second motor 12 drives the threaded rod 2 to rotate, therefore, the height of the blackboard body 11 can be adjusted to be low, and a teacher can conveniently utilize a part of the area above the blackboard body 11.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blackboard is used in teaching with dust absorption function, includes fixed frame (10), its characterized in that: the blackboard is characterized in that a blackboard body (11) is embedded in the fixed frame (10), the front surface of the fixed frame (10) is symmetrically fixed with dust collection heads (6) along a horizontal central line, the two dust collection heads (6) are of a cuboid structure with a hollow structure, a plurality of dust collection holes (16) are formed in the opposite sides of the two dust collection heads (6), the dust collection holes (16) are uniformly distributed on the opposite sides of the two dust collection heads (6), dust collection boxes (9) are fixed at the upper surface center and the lower surface center of the fixed frame (10), dust guide pipes (8) are fixed on the front surfaces of the two dust collection boxes (9), one ends of the two dust guide pipes (8), which are far away from the dust collection boxes (9), are fixedly connected with the back sides of the two dust collection heads (6), and first motors (7) are fixed on the back sides of the two dust collection boxes (9) through screws, the first motor (7) is electrically connected with an external power supply, and one end of an output shaft of the first motor (7) is positioned in the dust collection box (9) and is fixedly provided with a fan (15).

2. The blackboard with dust absorption function for teaching according to claim 1, characterized in that: a dust filtering net (13) is fixed in the dust collecting box (9) below the fan (15), air outlet holes (14) are symmetrically formed in the upper surface of the dust collecting box (9), and the two air outlet holes (14) are respectively located on two sides of the first motor (7).

3. The blackboard with dust absorption function for teaching according to claim 1, characterized in that: equal welded fastening in both sides center department of fixed frame (10) has thread bush (3), just the below symmetry of fixed frame (10) is equipped with second motor (12), two second motor (12) all with external power source electric connection, and two second motor (12) are servo motor, two the rear surface of second motor (12) all is fixed with fixed plate (1), and two the output of second motor (12) all is fixed with threaded rod (2), two threaded rod (2) pass two respectively thread bush (3) and with two thread bush (3) threaded connection.

4. The blackboard with dust absorption function for teaching according to claim 3, characterized in that: the top welded fastening of threaded rod (2) has stopper (4), stopper (4) are cake column structure, just the radius of stopper (4) is greater than the radius of thread bush (3).

5. The blackboard with dust absorption function for teaching according to claim 1, characterized in that: the rear symmetry of fixed frame (10) is equipped with slide rail (5), just the rear surface symmetry of fixed frame (10) rotates and is connected with pulley (17), two pulley (17) are located two respectively the inside of slide rail (5).

6. The blackboard with dust absorption function for teaching according to claim 1, characterized in that: the length of the dust collection head (6) is greater than that of the blackboard body (11).