CN211710480U

CN211710480U - Anti-reflection blackboard for kindergarten

Info

Publication number: CN211710480U
Application number: CN202020003748.8U
Authority: CN
Inventors: 王红玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-10-20
Anticipated expiration: 2030-01-02

Abstract

The utility model discloses an anti-reflection blackboard for kindergarten, which comprises a blackboard body, wherein two rectangular cavities are symmetrically arranged at two ends inside the blackboard body, and limiting columns are welded on the inner walls of two ends of the two rectangular cavities which are opposite to each other; the inner sides of the two rectangular cavities are provided with drawing plates; the top and the bottom of the pull plate are both provided with sliding grooves which are connected with adjacent limiting columns in a sliding manner; the utility model discloses in, when being taken out through the pull board, the elasticity gasbag is elongated, the elasticity gasbag is through air duct and two air guide mouths guide in a rubber gasbag and No. two rubber gasbags respectively, thereby make a shading blackboard and No. two shading blackboards be the slope and put the cloth, carry out the shading to the side of blackboard body, improve shading efficiency, avoid blackboard body self reflection of light to cause children can't see clearly on the blackboard note, protect children's eyesight, and can adjust the angle of two shading blackboards at the in-process that the pull board removed by oneself, it is convenient to use.

Description

Anti-reflection blackboard for kindergarten

Technical Field

The utility model relates to a blackboard technical field, concretely relates to prevent reflecting blackboard for kindergarten.

Background

The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk, and is mostly black, dark green, white or beige. The blackboard of current blackboard when using, because of the easy reflection of light in surface of blackboard for the student of classroom front stall is when looking over the blackboard, is difficult for looking over the blackboard writing of blackboard both sides, and the blackboard writing is looked over to the student of not being convenient for, and some current blackboards through installing the sunshade additional, and reflection of light is avoided to usable sunshade, is difficult for adjusting at the in-process of using, and is used inconveniently.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem, the utility model aims to provide a prevent back light blackboard for kindergarten, when being taken out through the pull board, elastic air bag is elongated, elastic air bag is through the air duct and two air guide mouths in leading-in rubber gasbag and No. two rubber airbags respectively, thereby make a shading blackboard and No. two shading blackboards be the slope and put the cloth, carry out the shading to the side of blackboard body, improve shading efficiency, avoid blackboard body self reflection of light to cause children can't see clearly on the blackboard note, protect children's eyesight, and can adjust the angle of two shading blackboards at the in-process that the pull board removed by oneself, it is convenient to use.

The purpose of the utility model can be realized by the following technical scheme:

the anti-reflection blackboard for kindergartens comprises a blackboard body, wherein two rectangular cavities are symmetrically formed in two ends of the interior of the blackboard body, and limiting columns are welded on the inner walls of two ends of the two rectangular cavities, which are far away from one side; the inner sides of the two rectangular cavities are provided with drawing plates; the blackboard comprises a blackboard body, wherein the blackboard body is provided with a rectangular cavity, the rectangular cavity is provided with a limiting post, the top and the bottom of the blackboard body are respectively provided with a sliding groove, the sliding grooves are in sliding connection with adjacent limiting posts, the front side of the blackboard body is provided with a shading module, a supporting module is bonded between one side edge of the blackboard body, which is positioned at the inner side of the blackboard body, and the inner wall of the rectangular cavity, and the front side of the blackboard body; three right-angle clamping grooves are formed in the position, corresponding to the right-angle clamping strip, of one side wall of the rectangular cavity at equal intervals, when the drawing plate needs to be drawn out, the drawing plate is located at one end of the outer side of the blackboard body, at the moment, the limiting column and the sliding groove move relatively, the drawing plate is drawn out, and the shading module leaks to shade the side edge of the blackboard body, so that a blind area of the blackboard body is avoided, and the vision of children is protected; wherein the content of the first and second substances,

the support module comprises an elastic air bag, an air guide pipe and two air guide nozzles; one end of the elastic air bag is fixedly connected with one side edge of the drawing plate positioned on the inner side of the blackboard body, and the other end of the elastic air bag is fixedly connected with one side edge of the rectangular cavity along the vertical direction; the air guide pipe is embedded and connected in the position, corresponding to the elastic air bag, in the drawing plate; the end, far away from the elastic air bag, of the air guide pipe is communicated with the two air guide nozzles, the two air guide nozzles are communicated with the first rubber air bag and the second rubber air bag respectively, when the pull plate is drawn out, the elastic air bag is lengthened, at the moment, air in the inner cavity of the elastic air bag is guided into the air guide pipe and is guided into the first rubber air bag and the second rubber air bag through the two air guide nozzles respectively, the two rubber air bags are inflated and expanded, so that the shading module is obliquely arranged, the side edge of the blackboard body is shaded, the shading efficiency is improved, the phenomenon that a child cannot see notes on the blackboard clearly due to light reflection of the blackboard body is avoided, and the eyesight of the child is;

the shading module comprises a first shading blackboard and a second shading blackboard; one side edge of the first shading blackboard is rotatably connected with the adjacent drawing plate through a torsion spring, the other side edge of the first shading blackboard is rotatably connected with the second shading blackboard through a rotating shaft, and a first rubber air bag is bonded between the inner side of the first shading blackboard and the side wall of the drawing plate; a rubber air bag II is bonded between the inner side of the shading blackboard II and the side wall of the drawing plate, and the shading blackboard are respectively supported after the rubber air bag I and the rubber air bag II are inflated and expanded, so that the stability of the two shading blackboards is improved when a teacher can perform writing on the two shading blackboards, and the effective writing area can be increased.

Further, the method comprises the following steps: the right angle limit of right angle card strip and right angle draw-in groove is adjacent with the vertical central line of blackboard body, and the right angle limit of right angle card strip can avoid the pull board to remove with the right angle limit joint back of right angle draw-in groove to guarantee the stability of pull board, and then can guarantee the normal use of a shading blackboard and No. two shading blackboards.

Further, the method comprises the following steps: when the elastic air bag is located at the initial position, one side edge of the drawing plate located on the outer side of the blackboard body is attached to one side of the blackboard body, the elastic air bag keeps an initial shape when located at the initial position, the drawing plate is applied with a pulling force moving towards the vertical center direction of the blackboard body, and the drawing plate is guaranteed to be kept stable when being recovered to the inside of the blackboard body.

Further, the method comprises the following steps: when the elastic airbag is in the initial state, a rubber airbag and a rubber airbag are in a contraction state, the elastic airbag is in a return state, gas in the rubber airbag and the rubber airbag is pumped out through the air guide tube and the air guide nozzle, so that the two rubber airbags are contracted, two shading blackboards are pulled to be close to the drawing board, the two shading blackboards can be recovered to the original position by themselves when the drawing board is recovered to the inner side of the blackboard body, the two shading blackboards are prevented from being recovered, the step of recovering the drawing board is reduced, and the use is convenient.

Further, the method comprises the following steps: the elasticity of a rubber air bag is less than the elasticity of a rubber air bag II, when the elastic air bag extends, the elasticity of the rubber air bag II is greater than the elasticity of the rubber air bag I, the rubber air bag II is inflated and expanded firstly, after the rubber air bag I reaches the maximum deformation amount, the rubber air bag I is inflated and expanded, the shading degree of the side edge of the blackboard body can be adjusted, and the application range is wide.

Further, the method comprises the following steps: two extrusion springs are welded at the positions, corresponding to the support modules, of the rear side of the pull plate, and one ends of the two extrusion springs are fixedly connected with the sliding block; a guide rail is welded on one side of the rectangular cavity adjacent to the sliding block and is in sliding connection with the sliding block, and a first permanent magnet is arranged on one side of the rectangular cavity adjacent to the rear side of the drawing plate; the slider is kept away from and is linked firmly No. two permanent magnets on the side of pull board rear side, and No. two permanent magnets are used for inhaling mutually with a permanent magnet magnetism in order to fix the position of pull board, and when the pull board was retrieved to the inside of blackboard body, No. two permanent magnets and a permanent magnet magnetism inhaled mutually, carry on spacingly to the position of pull board to the stability of pull board has further been improved.

The utility model has the advantages that:

1. when the drawing plate is drawn out, the elastic air bag is lengthened, and the elastic air bag is respectively guided into the first rubber air bag and the second rubber air bag through the air guide pipe and the two air guide nozzles, so that the first shading blackboard and the second shading blackboard are obliquely arranged, the side edge of the blackboard body is shaded, the shading efficiency is improved, the phenomenon that a child cannot see notes on the blackboard clearly due to the fact that the blackboard body reflects light is avoided, the eyesight of the child is protected, the angles of the two shading blackboards can be automatically adjusted in the moving process of the drawing plate, and the use is convenient; when the elastic air bag extends, the elasticity of the second rubber air bag is larger than that of the first rubber air bag, the second rubber air bag is inflated and expanded firstly, and the first rubber air bag is inflated and expanded after the first rubber air bag reaches the maximum deformation amount, so that the shading degree of the side edge of the blackboard body can be adjusted, and the application range is wide;

2. after the first rubber air bag and the second rubber air bag are inflated and expanded, the first shading blackboard and the second shading blackboard are respectively supported, so that a teacher can improve the stability of the two shading blackboards when writing on the two shading blackboards, and the effective writing area can be increased; when the drawing plate is recycled to the interior of the blackboard body, the second permanent magnet and the first permanent magnet are attracted magnetically, and the position of the drawing plate is limited, so that the stability of the drawing plate is further improved;

3. through set up the right angle card strip on the pull board, utilize the right angle card strip can with the three right angle draw-in groove difference joint in the rectangle cavity, the use quantity of two adjustable shading blackboards, thereby carry out the shading according to blackboard body's reflection of light volume, it is convenient to use, still can be through the right angle limit of right angle card strip and behind the right angle limit joint of right angle draw-in groove, can avoid the pull board to remove, thereby guarantee the stability of pull board, and then can guarantee the normal use of a shading blackboard and No. two shading blackboards, avoid children to use, and safety factor is improved.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 1;

fig. 4 is a schematic view of the state of the drawing plate recovery of the present invention;

FIG. 5 is a schematic cross-sectional view taken at C-C in FIG. 4;

in the figure: 1. a blackboard body; 11. a rectangular cavity; 12. a limiting column; 13. a right-angle clamping groove; 14. a first permanent magnet; 2. a drawing plate; 21. a chute; 22. a compression spring; 23. a slider; 231. a second permanent magnet; 24. a right-angle clamping strip; 3. a light shielding module; 31. a first shading blackboard; 32. a second shading blackboard; 4. a support module; 41. an elastic air bag; 42. an air duct; 43. an air guide nozzle; 5. a second rubber air bag; 6. no. one rubber air bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

2. Referring to fig. 1-5, an anti-reflection blackboard for kindergarten comprises a blackboard body 1, wherein two rectangular cavities 11 are symmetrically formed in two ends of the interior of the blackboard body 1, and limiting columns 12 are welded on inner walls of two ends of one opposite side of the two rectangular cavities 11; the inner sides of the two rectangular cavities 11 are both provided with a drawing plate 2; the top and the bottom of the pull plate 2 are both provided with sliding grooves 21, the sliding grooves 21 are in sliding connection with adjacent limiting columns 12, the front side of the pull plate 2 is provided with a shading module 3, a supporting module 4 is bonded between one side edge of the pull plate 2 positioned on the inner side of the blackboard body 1 and the inner wall of the rectangular cavity 11, and the front side of the pull plate 2 is welded with a right-angle clamping strip 24 corresponding to the position of the supporting module 4; three right-angle clamping grooves 13 are formed in the position, corresponding to the right-angle clamping strip 24, of one side wall of the rectangular cavity 11 at equal intervals, when the pull plate 2 needs to be pulled out, the pull plate 2 is pulled to be located at one end of the outer side of the blackboard body 1, at the moment, the limiting column 12 and the sliding groove 21 move relatively, the pull plate 2 is pulled out, and the shading module 3 leaks to shade the side edge of the blackboard body 1, so that a blind area of the blackboard body 1 is avoided, and the vision of children is protected; wherein the content of the first and second substances,

the support module 4 comprises an elastic air bag 41, an air duct 42 and two air guide nozzles 43; one end of the elastic air bag 41 is fixedly connected with one side edge of the drawing plate 2 positioned at the inner side of the blackboard body 1, and the other end of the elastic air bag is fixedly connected with one side edge of the rectangular cavity 11 along the vertical direction; the air duct 42 is embedded and connected in the inner part of the drawing plate 2 corresponding to the position of the elastic air bag 41; one end of the air duct 42, which is far away from the elastic air bag 41, is communicated with both the two air guide nozzles 43, the two air guide nozzles 43 are respectively communicated with the first rubber air bag 6 and the second rubber air bag 5, when the pull plate 2 is pulled out, the elastic air bag 41 is stretched, at the moment, the gas in the inner cavity of the elastic air bag 41 is guided into the air duct 42 and is respectively guided into the first rubber air bag 6 and the second rubber air bag 5 through the two air guide nozzles 43, and the two rubber air bags are inflated and expanded, so that the shading module 3 is obliquely arranged, the side edge of the blackboard body 1 is shaded, the shading efficiency is improved, the problem that a child cannot clearly see notes on the blackboard due to self-reflection of the blackboard body 1 is avoided, and;

the shading module 3 comprises a first shading blackboard 31 and a second shading blackboard 32; one side edge of the first shading blackboard 31 is rotatably connected with the adjacent drawing plate 2 through a torsion spring, the other side edge of the first shading blackboard 31 is rotatably connected with the second shading blackboard 32 through a rotating shaft, and a first rubber air bag 6 is bonded between the inner side of the first shading blackboard 31 and the side wall of the drawing plate 2; a rubber air bag 5 is bonded between the inner side of the shading blackboard 32 and the side wall of the drawing plate 2, and after the rubber air bag 6 and the rubber air bag 5 are inflated and expanded, the shading blackboard 31 and the shading blackboard 32 are respectively supported, so that the stability of the two shading blackboards is improved when a teacher can perform writing on the two shading blackboards, and the effective writing area can be increased.

The right-angle sides of the right-angle clamping strip 24 and the right-angle clamping groove 13 are adjacent to the vertical central line of the blackboard body 1, the right-angle sides of the right-angle clamping strip 24 are clamped with the right-angle sides of the right-angle clamping groove 13, the movement of the drawing board 2 can be avoided, the stability of the drawing board 2 is ensured, the normal use of the first shading blackboard 31 and the second shading blackboard 32 can be ensured, when the elastic air bag 41 is positioned at the initial position, one side edge of the drawing board 2 positioned at the outer side of the blackboard body 1 is attached to one side of the blackboard body 1, the initial shape is kept when the elastic air bag 41 is positioned at the initial position, the pulling force moving towards the vertical central direction of the blackboard body 1 is applied to the drawing board 2, the drawing board 2 is kept stable when being recovered into the blackboard body 1, when the elastic air bag 41 is positioned at the initial state, the first rubber air bag 6 and the, the air in the first rubber air bag 6 and the second rubber air bag 5 is pumped out through the air duct 42 and the air guide nozzle 43, thereby enabling the two rubber air bags to contract and pulling the two shading blackboards to be close to the drawing plate 2, when the drawing plate 2 is recovered to the inner side of the blackboard body 1, the two shading blackboards automatically recover to the original positions, the two shading blackboards are prevented from obstructing the recovery of the drawing plate 2, the step of recovering the drawing plate 2 is reduced, the use is convenient, the elasticity of the first rubber air bag 6 is less than that of the second rubber air bag 5, when the elastic air bag 41 is stretched, the elasticity of the second rubber air bag 5 is larger than that of the first rubber air bag 6, the second rubber air bag 5 is firstly inflated and expanded, after the rubber air bag 6 reaches the maximum deformation, the rubber air bag 6 is inflated and expanded, so that the shading degree of the side edge of the blackboard body 1 can be adjusted, and the application range is wide.

Two extrusion springs 22 are welded at the positions, corresponding to the support modules 4, of the rear side of the pull plate 2, and one ends of the two extrusion springs 22 are fixedly connected with the sliding block 23; a guide rail is welded on one side of the rectangular cavity 11 adjacent to the sliding block 23 and is in sliding connection with the sliding block 23, and a first permanent magnet 14 is arranged on one side of the rectangular cavity 11 adjacent to the rear side of the drawing plate 2; no. two permanent magnets 231 are fixedly connected to a side face, away from the rear side of the drawing plate 2, of the sliding block 23, and the No. two permanent magnets 231 are used for being attracted with a permanent magnet 14 to fix the position of the drawing plate 2, when the drawing plate 2 is recovered to the inside of the blackboard body 1, the No. two permanent magnets 231 are attracted with the permanent magnet 14, the position of the drawing plate 2 is limited, and therefore the stability of the drawing plate 2 is further improved.

The elastic air bag 41 is provided with an inflating nozzle which is communicated with an external air pump, and air can be periodically supplied to the inner cavity of the elastic air bag 41.

The working principle is as follows: firstly, the blackboard body 1 is installed on the wall surface, when the drawing board 2 needs to be drawn out in the using process, the drawing board 2 is directly drawn at one end of the outer side of the blackboard body 1, at the moment, the limiting column 12 and the chute 21 move relatively, the drawing board 2 is drawn out, the elastic air bag 41 is stretched, at the moment, the air in the inner cavity of the elastic air bag 41 is led into the air duct 42 and is respectively led into the first rubber air bag 6 and the second rubber air bag 5 through the two air guide nozzles 43, the two rubber air bags are inflated and expanded, so that the first shading blackboard 31 and the second shading blackboard 32 are obliquely arranged, the side edge of the blackboard body 1 is shaded, the reflection of light at the two sides of the blackboard body 1 is avoided, meanwhile, after the drawing board 2 is drawn, the right-angle clamping strip 24 is clamped with the right-angle clamping groove 13, the drawing board 2 is fixed, and the stability of the drawing board 2 is ensured, when the drawing board 2 receives the external force action in a single direction, the position is kept unchanged, and the drawing board 2 is pushed to approach the wall when the drawing board 2 needs to be recovered into the blackboard body 1, at the moment, the right-angle clamping strip 24 is separated from the right-angle clamping groove 13, then the drawing plate 2 is pushed to move towards the interior of the blackboard body 1, and simultaneously, when the elastic air bag 41 is restored to the original state, the air in the first rubber air bag 6 and the second rubber air bag 5 is drawn out, thereby enabling the two rubber air bags to contract and pulling the two shading blackboards to be close to the pull-out board 2, and when the pull-out board 2 is recovered to the inner side of the blackboard body 1, the two shading blackboards automatically recover to the original positions to facilitate the recovery of the pull-out board 2, after the drawing plate 2 is recovered to the inside of the blackboard body 1, the second permanent magnet 231 is opposite to the first permanent magnet 14, and the magnetism is attracted, so that the position of the drawing plate 2 is further limited.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 invention. 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 is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. The anti-reflection blackboard for kindergartens comprises a blackboard body (1) and is characterized in that two rectangular cavities (11) are symmetrically formed in two ends of the interior of the blackboard body (1), and limiting columns (12) are welded on the inner walls of the two ends of the two rectangular cavities (11) on the opposite sides; the inner sides of the two rectangular cavities (11) are provided with drawing plates (2); the top and the bottom of the drawing plate (2) are both provided with sliding grooves (21), the sliding grooves (21) are in sliding connection with adjacent limiting columns (12), the front side of the drawing plate (2) is provided with a shading module (3), a supporting module (4) is bonded between one side edge of the drawing plate (2) positioned on the inner side of the blackboard body (1) and the inner wall of the rectangular cavity (11), and right-angle clamping strips (24) are welded on the front side of the drawing plate (2) corresponding to the supporting module (4); three right-angle clamping grooves (13) are formed in one side wall of the rectangular cavity (11) at equal intervals corresponding to the right-angle clamping strips (24); wherein the content of the first and second substances,

the support module (4) comprises an elastic air bag (41), an air duct (42) and two air guide nozzles (43); one end of the elastic air bag (41) is fixedly connected with one side edge of the drawing plate (2) positioned on the inner side of the blackboard body (1), and the other end of the elastic air bag is fixedly connected with one vertical side edge of the rectangular cavity (11); the air guide pipe (42) is embedded and connected in the position, corresponding to the elastic air bag (41), in the drawing plate (2); one end of the air duct (42) far away from the elastic air bag (41) is communicated with the two air guide nozzles (43), and the two air guide nozzles (43) are respectively communicated with the first rubber air bag (6) and the second rubber air bag (5);

the shading module (3) comprises a first shading blackboard (31) and a second shading blackboard (32); one side edge of the first shading blackboard (31) is rotatably connected with the adjacent drawing plate (2) through a torsion spring, the other side edge of the first shading blackboard (31) is rotatably connected with the second shading blackboard (32) through a rotating shaft, and a first rubber air bag (6) is bonded between the inner side of the first shading blackboard (31) and the side wall of the drawing plate (2); a second rubber air bag (5) is bonded between the inner side of the second shading blackboard (32) and the side wall of the drawing plate (2).

2. An anti-reflection blackboard for kindergartens according to claim 1, wherein the right-angle sides of the right-angle clamping strip (24) and the right-angle clamping groove (13) are adjacent to the vertical central line of the blackboard body (1).

3. An anti-reflection blackboard for kindergartens according to claim 1, wherein when the elastic air bag (41) is in the initial position, one side of the drawing board (2) located outside the blackboard body (1) is attached to one side of the blackboard body (1).

4. An anti-reflection blackboard for kindergartens, according to claim 3, characterised in that when the elastic air bag (41) is in the initial state, the rubber air bag No. one (6) and the rubber air bag No. two (5) are in the contracted state.

5. An anti-reflection blackboard for kindergartens according to claim 4, characterised in that the elasticity of the rubber air bag No. one (6) is smaller than that of the rubber air bag No. two (5).

6. The anti-reflection blackboard for kindergartens according to claim 1, wherein two extrusion springs (22) are welded at the positions corresponding to the support modules (4) at the rear side of the pull-out board (2), and one ends of the two extrusion springs (22) are fixedly connected with the sliding block (23); a guide rail is welded on one side of the rectangular cavity (11) adjacent to the sliding block (23), the guide rail is connected with the sliding block (23) in a sliding manner, and a first permanent magnet (14) is arranged on one side of the rectangular cavity (11) adjacent to the rear side of the drawing plate (2); the slider (23) is kept away from on the side of pull board (2) rear side and is linked firmly No. two permanent magnet (231), and No. two permanent magnet (231) are used for with permanent magnet (14) magnetism looks attracting in order to fix the position of pull board (2).