CN213082771U

CN213082771U - Adjustable blackboard for classroom education

Info

Publication number: CN213082771U
Application number: CN202021575990.9U
Authority: CN
Inventors: 张文艺
Original assignee: Hunan Mass Media Vocational and Technical College
Current assignee: Hunan Mass Media Vocational and Technical College
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-30
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to a classroom education technical field just discloses an adjustable blackboard is used in classroom education, including main blackboard, the equal fixed mounting in the left and right sides of main blackboard has the axis of rotation, the axis of rotation outside is rotated and is connected with supplementary blackboard. This adjustable blackboard is used in classroom education, one side through being close to main blackboard at supplementary blackboard sets up the axis of rotation, one side bottom of keeping away from main blackboard is provided with the gyro wheel, the rotation of transmission shaft, can drive the rotation of supplementary blackboard, when supplementary blackboard rotates, back fixed mounting's movable rod removes in the draw-in groove on the fixed plate thereupon, when supplementary blackboard rotates and stops, the movable rod card is in the draw-in groove that corresponds, the realization is fixed to supplementary blackboard, the effect that can adjust both sides blackboard application angle has been reached, the phenomenon that traditional blackboard has the reflection of light to appear easily in the use has been solved, make the student on classroom both sides hardly see the problem of the content of blackboard clearly.

Description

Adjustable blackboard for classroom education

Technical Field

The utility model relates to a classroom education technical field specifically is an adjustable blackboard is used in classroom education.

Background

Classroom education is a means commonly used in education and teaching, which is the whole process that teachers teach students knowledge and skills, and mainly comprises teacher explanation, student question and answer, teaching activities and all teaching aids used in the teaching process, also called class-on system, and as opposed to individual teaching, students with the same or similar age and knowledge degree are compiled into class groups with fixed number of people; organizing teaching materials and selecting a proper teaching method according to the contents specified by the teaching outline of each department; and according to a fixed time schedule, giving lessons to students throughout the class in a teaching organization form.

The blackboard is indispensable to the use in classroom education, and the traditional blackboard is easy to reflect light in the use process, so that students at two sides of a classroom are difficult to see the content of the blackboard clearly; the adjustable blackboard for classroom education has the advantages that the writing range is limited, the effect of teaching or display is affected due to the fact that problems such as the fact that the writing range is limited and the extension cannot be achieved, the quality of teaching is reduced, and therefore the adjustable blackboard can be used for adjusting the using angles of the blackboards on the two sides and can be used in an extending mode.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an adjustable blackboard for classroom education, which has the advantages of adjusting the use angles of blackboards at two sides, extending the use and the like, and solves the problem that the traditional blackboard is easy to reflect light in the use process, so that students at two sides of a classroom are difficult to see the content of the blackboard clearly; the writing range is limited and the writing range cannot be extended.

(II) technical scheme

In order to realize that the aforesaid can be adjusted both sides blackboard and use the angle and can extend the use purpose, the utility model provides a following technical scheme: an adjustable blackboard for classroom education comprises a main blackboard, wherein rotating shafts are fixedly mounted on the left side and the right side of the main blackboard respectively, an auxiliary blackboard is rotatably connected to the outer side of the rotating shafts, an extension blackboard with one end extending to the outside of the extension blackboard is slidably connected between the front side and the rear side of the inner wall of the auxiliary blackboard, a sleeve is fixedly mounted at the top of one side, close to the auxiliary blackboard, of the extension blackboard, a sliding rod with one end extending to the top of the auxiliary blackboard is movably connected inside the sleeve, a baffle is fixedly mounted at the top of the sliding rod, a spring sleeved outside the sliding rod is fixedly connected between the baffle and the sleeve, an active buckle is fixedly mounted at the bottom of one side, close to the auxiliary blackboard, of the extension blackboard, a fixed buckle is fixedly mounted at the bottom of the inner wall of the auxiliary blackboard, the blackboard comprises a main blackboard and an auxiliary blackboard, wherein the main blackboard is fixedly provided with a fixing plate on the back, the front of the fixing plate is provided with a clamping groove, and the auxiliary blackboard is fixedly provided with a movable rod clamped with the clamping groove on the back.

Preferably, the inside cavity that is of supplementary blackboard, and supplementary blackboard roof left and right sides has all seted up the fixed orifices, and the diameter of fixed orifices is greater than the diameter of baffle.

Preferably, an opening is formed in one side, away from the main blackboard, of the auxiliary blackboard, and the size of the opening is matched with that of the extension blackboard.

Preferably, the pull rod is of a U-shaped design, and the outer side of the pull rod is wrapped with a sponge sleeve.

Preferably, the distance between the two fixing holes on the same auxiliary blackboard is equal to the distance between the active buckle and the fixed buckle.

Preferably, the active buckle and the fixed buckle are both L-shaped buckles, and the buckles and the fixed buckles are mutually clamped.

Preferably, the clamping groove is an oblique tooth groove, and one end of the movable rod close to the fixed plate is an oblique plane matched with the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model provides an adjustable blackboard is used in classroom education possesses following beneficial effect:

1. this adjustable blackboard is used in classroom education, one side through being close to main blackboard at supplementary blackboard sets up the axis of rotation, one side bottom of keeping away from main blackboard is provided with the gyro wheel, the rotation of transmission shaft, can drive the rotation of supplementary blackboard, when supplementary blackboard rotates, back fixed mounting's movable rod removes in the draw-in groove on the fixed plate thereupon, when supplementary blackboard rotates and stops, the movable rod card is in the draw-in groove that corresponds, the realization is fixed to supplementary blackboard, the effect that can adjust both sides blackboard application angle has been reached, the phenomenon that traditional blackboard has the reflection of light to appear easily in the use has been solved, make the student on classroom both sides hardly see the problem of the content of blackboard clearly.

2. This adjustable blackboard is used in classroom education, be provided with the extension blackboard through between the inside front and back both sides of supplementary blackboard, outwards stimulate the pull rod when pressing the baffle at supplementary blackboard top for extend the blackboard and outwards extend, outside the slide bar that extends on the blackboard when pulling a certain position stretches out the fixed orifices that supplementary blackboard top was seted up, the joint is accomplished with fixed buckle to initiative buckle simultaneously, realize the fixed to extending the blackboard, reach and extend and write, write the bigger effect of scope, user's use has been made things convenient for.

Drawings

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

FIG. 2 is a top view of the present invention;

fig. 3 is a side view of the connection between the pull rod and the auxiliary blackboard.

In the figure: the blackboard comprises a main blackboard 1, a rotating shaft 2, an auxiliary blackboard 3, an extension blackboard 4, a sleeve 5, a sliding rod 6, a baffle 7, a spring 8, a driving buckle 9, a fixed buckle 10, a pull rod 11, a roller 12, a fixed plate 13, a clamping groove 14 and a movable rod 15.

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.

Referring to fig. 1-3, the present invention provides a technical solution: an adjustable blackboard for classroom education comprises a main blackboard 1, wherein rotating shafts 2 are fixedly arranged on the left side and the right side of the main blackboard 1, an auxiliary blackboard 3 is rotatably connected to the outer side of each rotating shaft 2, the inner part of each auxiliary blackboard 3 is hollow, fixing holes are formed in the left side and the right side of the top wall of each auxiliary blackboard 3, an opening is formed in one side, away from the main blackboard 1, of each auxiliary blackboard 3, the size of the opening is matched with that of each extending blackboard 4, the diameter of each fixing hole is larger than that of a baffle 7, each extending blackboard 4 with one end extending to the outer part of the corresponding extending blackboard is slidably connected between the front side and the rear side of the inner wall of each auxiliary blackboard 3, a sleeve 5 is fixedly arranged at the top, close to one side of each auxiliary blackboard 3, a sliding rod 6 with one end extending to the top of each auxiliary blackboard 3 is movably connected inside each sleeve, the bottom of the extension blackboard 4 close to one side of the auxiliary blackboard 3 is fixedly provided with an active buckle 9, the bottom of the inner wall of the auxiliary blackboard 3 is fixedly provided with a fixed buckle 10, the distance between two fixed holes on the same auxiliary blackboard 3 is equal to the distance between the active buckle 9 and the fixed buckle 10, the active buckle 9 and the fixed buckle 10 are L-shaped buckles, the buckle 9 and the fixed buckle 10 are mutually clamped, one side of the extension blackboard 4 away from the main blackboard 1 is fixedly provided with a pull rod 11, the pull rod 11 is in a U-shaped design, the outer side of the pull rod 11 is wrapped with a sponge sleeve, the extension blackboard 4 is arranged between the front side and the rear side inside the auxiliary blackboard 3, the pull rod 11 is pulled outwards when a baffle 7 at the top of the auxiliary blackboard 3 is pressed, so that the extension blackboard 4 extends outwards, when the extension blackboard 4 is pulled to a certain position, a slide rod 6, meanwhile, the active buckle 9 and the fixed buckle 10 are clamped, the extension blackboard 4 is fixed, the effect of extending writing and larger writing range is achieved, and the use of a user is facilitated, rollers 12 are fixedly arranged at the bottom of the auxiliary blackboard 3, a fixed plate 13 is fixedly arranged at the back of the main blackboard 1, a clamping groove 14 is formed in the front of the fixed plate 13, a movable rod 15 clamped with the clamping groove 14 is fixedly arranged at the back of the auxiliary blackboard 3, the clamping groove 14 is an oblique tooth groove, one end, close to the fixed plate 13, of the movable rod 15 is an inclined surface matched with the clamping groove 14, a rotating shaft 2 is arranged at one side, close to the main blackboard 1, of the auxiliary blackboard 3, the rollers 12 are arranged at the bottom of one side, away from the main blackboard 1, the rotating shaft 2 rotates to drive the auxiliary blackboard 3 to rotate, when the auxiliary blackboard 3 rotates, the movable rod 15 fixedly, when supplementary blackboard 3 rotated and stopped, movable rod 15 card realized the fixed of supplementary blackboard 3 in corresponding draw-in groove 14, reached the effect that can adjust both sides blackboard application angle, had solved traditional blackboard and had the phenomenon that the reflection of light appears easily in the use for the problem of the content of blackboard is hardly seen clearly to the student on classroom both sides.

In conclusion, the adjustable blackboard for classroom education is characterized in that the rotating shaft 2 is arranged on one side of the auxiliary blackboard 3 close to the main blackboard 1, the roller 12 is arranged at the bottom of one side far away from the main blackboard 1, the rotation of the rotating shaft 2 can drive the auxiliary blackboard 3 to rotate, when the auxiliary blackboard 3 rotates, the movable rod 15 fixedly installed on the back moves in the clamping groove 14 on the fixed plate 13 along with the rotation, when the auxiliary blackboard 3 stops rotating, the movable rod 15 is clamped in the corresponding clamping groove 14 to fix the auxiliary blackboard 3, the effect of adjusting the use angles of the blackboards on two sides is achieved, the problem that students on two sides of a classroom are difficult to see the content of the blackboard due to the fact that the traditional blackboard is easy to reflect light in the use process is solved, the extending blackboard 4 is arranged between the front side and the back side of the auxiliary blackboard 3, the pull rod 11 is pulled outwards when the baffle 7 on the top of the auxiliary blackboard, make to extend blackboard 4 and outwards extend, outside the fixed orifices that extension blackboard 4 was last slide bar 6 stretched out supplementary blackboard 3 top and was seted up when pulling a locating position, the joint is accomplished with fixed buckle 10 to initiative buckle 9 simultaneously, realizes the fixed to extending blackboard 4, reaches and can extend and write, writes the bigger effect of scope, has made things convenient for user's use.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 an adjustable blackboard is used in classroom education, includes main blackboard (1), its characterized in that: the blackboard is characterized in that a rotation shaft (2) is fixedly mounted on the left side and the right side of the main blackboard (1), an auxiliary blackboard (3) is connected to the outer side of the rotation shaft (2) in a rotating mode, one end of an extension blackboard (4) extending to the outside of the auxiliary blackboard (3) is connected between the front side and the rear side of the inner wall of the auxiliary blackboard (3) in a sliding mode, a sleeve (5) is fixedly mounted at the top of one side of the auxiliary blackboard (3) close to the extension blackboard (4), one end of the inner portion of the sleeve (5) is movably connected with a sliding rod (6) extending to the top of the auxiliary blackboard (3), a baffle (7) is fixedly mounted at the top of the sliding rod (6), a spring (8) sleeved outside the sliding rod (6) is fixedly connected between the baffle (7) and the sleeve (5), an active buckle (9) is fixedly mounted at the bottom of one side, extend blackboard (4) and keep away from one side fixed mounting of main blackboard (1) and have pull rod (11), supplementary blackboard (3) bottom fixed mounting has gyro wheel (12), main blackboard (1) back fixed mounting has fixed plate (13), draw-in groove (14) have openly been seted up in fixed plate (13), supplementary blackboard (3) back fixed mounting has movable rod (15) with draw-in groove (14) block.

2. The adjustable blackboard for classroom education as claimed in claim 1, wherein: the inside cavity that is of supplementary blackboard (3), and supplementary blackboard (3) roof left and right sides has all seted up the fixed orifices, and the diameter of fixed orifices is greater than the diameter of baffle (7).

3. The adjustable blackboard for classroom education as claimed in claim 1, wherein: an opening is formed in one side, away from the main blackboard (1), of the auxiliary blackboard (3), and the size of the opening is matched with that of the extension blackboard (4).

4. The adjustable blackboard for classroom education as claimed in claim 1, wherein: the pull rod (11) is designed in a U shape, and the outer side of the pull rod (11) is wrapped with a sponge sleeve.

5. The adjustable blackboard for classroom education as claimed in claim 1, wherein: the distance between the two fixing holes on the same auxiliary blackboard (3) is equal to the distance between the active buckle (9) and the fixed buckle (10).

6. The adjustable blackboard for classroom education as claimed in claim 1, wherein: the active buckle (9) and the fixed buckle (10) are both L-shaped buckles, and the active buckle (9) and the fixed buckle (10) are mutually clamped.

7. The adjustable blackboard for classroom education as claimed in claim 1, wherein: the clamping groove (14) is an oblique tooth groove, and one end of the movable rod (15) close to the fixed plate (13) is an oblique plane matched with the clamping groove (14).