CN210574463U

CN210574463U - Contrast explanation board for multi-view education

Info

Publication number: CN210574463U
Application number: CN201920560532.9U
Authority: CN
Inventors: 陈红英
Original assignee: Hunan Vocational Institute of Safety Technology
Current assignee: Hunan Vocational Institute of Safety Technology
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-05-19
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a contrast explanation board for multi-view education, which comprises an explanation board frame and side boards, wherein the side boards are arranged at two sides of the explanation board frame, the explanation board frame is rotationally connected with the side boards through shafts, a connecting board is arranged below the explanation board frame, and two ends of the connecting board are fixedly connected with the side boards at two sides; through design gear and screw rod, it can control the side explanation board to rotate to both sides to rotate the rocking handle, the student of the both sides of being convenient for sees the blackboard writing content clearly, the reflection of light has been reduced, the gear has auto-lock nature with the screw rod, need not to install locking mechanical system additional in addition, the operation of being convenient for, convenient teaching, through the design fixed block, make the explanation board frame rotate little radian around can, the plane of reflection of light has been changed, reach the purpose that improves reflection of light effect, through design locking mechanical system, be convenient for carry out the blackboard writing after the fixed, be convenient for adjust turned angle after the unblock.

Description

Contrast explanation board for multi-view education

Technical Field

The utility model belongs to the technical field of the teaching equipment, concretely relates to multi-view education is with contrast explanation board.

Background

In the middle of the classroom teaching process, the mr can carry out the blackboard writing with important knowledge point on the explanation board, so that the student understands the memory, traditional explanation board is perpendicular ground and towards the classroom dead astern, the influence of the light that is got into by the classroom window and top light, the student who sits in both sides the place ahead often can appear reflecting light and see the problem of blackboard writing content not, there is the explanation board at many visual angles also on the market, through rotating the explanation board of both sides, make most classmates homologies all can see the blackboard writing content.

Present multi-view education is with contrast explanation board, it is too complicated to have the explanation board structure, adjusts inconveniently, and needs fix through fixed establishment after the side explanation board is adjusted, troublesome poeration, influences the problem of teaching, for this reason we provide a multi-view education with contrast explanation board.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-visual angle education is with contrast explanation board to solve the current multi-visual angle education that proposes in the above-mentioned background art and use contrast explanation board, there is the explanation plate structure too complicated, and it is inconvenient to adjust, and needs fix through fixed establishment after the side explanation board is adjusted, troublesome poeration influences the problem of teaching.

In order to achieve the above object, the utility model provides a following technical scheme: a contrast explanation board for multi-view education comprises an explanation board frame and side boards, wherein the side boards are arranged on two sides of the explanation board frame, the explaining plate frame is rotatably connected with the side plates through a shaft, a connecting plate is arranged below the explaining plate frame, the two ends of the connecting plate are fixedly connected with the side plates at the two sides, the middle part of the explaining plate frame is fixedly provided with a front explaining plate, the two sides of the front explanation plate are provided with side explanation plates, the upper and lower ends of the side explanation plates are provided with rotating shafts, the rotating shaft is embedded into the inside of the explanation board frame through a shaft sleeve, a gear is sleeved on the outer surface of the rotating shaft at the lower end, the rotating shaft is fixedly connected with the gear through a key pin, one side of the gear is provided with a screw rod, the gear with the screw rod meshes mutually, the screw rod runs through the explanation board frame, just the front end of screw rod is fixed with the rocking handle.

Preferably, the fixed spindle nose that is provided with of both sides face lower extreme of explanation board frame, the medial surface of curb plate is provided with the fixed block, convex spout has been seted up to the side of fixed block, the inner wall symmetry of convex spout is provided with the cavity, cavity evenly distributed has a plurality ofly, just be provided with the elastic component in the cavity, the tip of spindle nose is embedded into in the convex spout and with elastic component looks block.

Preferably, the elastic element comprises a return spring and a sliding column, one end of the return spring is fixed on the inner bottom wall of the cavity, the sliding column extends into the sliding cavity and is fixedly connected with the return spring, and the extending end of the sliding column is of a hemispherical structure.

Preferably, a lock hole is formed in the middle of the lower end face of the explanation plate frame, a locking mechanism is arranged in the middle of the connecting plate and comprises a spring box, a sliding ring, a compression spring, a lock pin and a fixture block, the spring box is fixed on the upper end face of the connecting plate, the lock pin penetrates through the spring box and is matched with the lock hole, the fixture block is arranged at the upper end of the outer surface of the lock pin, the sliding ring is located inside the spring box, the compression spring is arranged between the sliding ring and the inner bottom wall of the spring box, a clamping groove is formed in the upper end face of the spring box, and the clamping groove is matched with the fixture block.

Preferably, the fixed dead lever that is provided with of lower extreme of curb plate, the both ends cover of dead lever is equipped with removes supporting mechanism, remove supporting mechanism with the junction of fixed lever is provided with the bearing, just remove supporting mechanism's upper and lower terminal surface and be provided with respectively and remove wheel and rubber pad.

Preferably, a connecting seam is arranged at the joint of the front explanation plate and the rotating shaft.

Preferably, the lower end of the front end face of the front explanation plate is provided with a containing groove.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through design gear and screw rod, rotate the rocking handle and can control the side explanation board and rotate to both sides, the student of the both sides of being convenient for sees the blackboard writing content clearly, has reduced the reflection of light, and the gear has auto-lock nature with the screw rod, need not to install locking mechanical system additional in addition, and the operation of being convenient for makes things convenient for the teaching, through the design fixed block for the explanation board frame can be around little radian rotate, has changed the plane of reflection of light, reaches the purpose that improves reflection of light effect.

(2) Through design locking mechanical system, be convenient for carry out the blackboard writing after fixed, be convenient for adjust turned angle after the unblock, the supporting mechanism is removed in the design, can realize the removal or the fixing of explanation board through the upset, easy operation, and convenient to use accomodates the groove through the design. The chalk and the blackboard eraser can be conveniently stored.

Drawings

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

FIG. 2 is a schematic side view of the explanation board frame of the present invention;

FIG. 3 is a schematic view of the connection structure of the gear and the screw rod of the present invention;

fig. 4 is a schematic structural view of a sectional view of the spring case of the present invention;

fig. 5 is a schematic structural diagram of a top view of the spring case of the present invention;

fig. 6 is a schematic view of a sectional view of the fixing block of the present invention;

in the figure: 1. an explanation board frame; 2. a side plate; 3. a rocking handle; 4. a connecting plate; 5. a mobile support mechanism; 6. a receiving groove; 7. a locking mechanism; 71. a spring case; 72. a slip ring; 73. a compression spring; 74. a lock pin; 75. a clamping block; 76. a card slot; 8. a fixed block; 9. a lateral explanation board; 10. a front explanation board; 11. a rotating shaft; 12. fixing the rod; 13. a gear; 14. a screw; 15. a circular arc chute; 16. an elastic member; 17. the shaft head.

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.

Examples

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a technical solution: a contrast explanation board for multi-visual-angle education comprises an explanation board frame 1 and side boards 2, wherein the side boards 2 are arranged on two sides of the explanation board frame 1, the explanation board frame 1 is rotatably connected with the side boards 2 through shafts, a connecting board 4 is arranged below the explanation board frame 1, two ends of the connecting board 4 are fixedly connected with the side boards 2 on two sides, a front explanation board 10 is fixedly arranged in the middle of the explanation board frame 1, side explanation boards 9 are arranged on two sides of the front explanation board 10, rotating shafts 11 are arranged at the upper end and the lower end of each side explanation board 9, the rotating shafts 11 are embedded into the explanation board frame 1 through shaft sleeves, gears 13 are sleeved on the outer surfaces of the lower rotating shafts 11, the rotating shafts 11 are fixedly connected with the gears 13 through key pins, screw rods 14 are arranged on one sides of the gears 13, the gears 13 are meshed with the screw rods 14, the screw rods 14 penetrate through the explanation board frame 1, and rocking handles 3 are fixedly arranged at the front ends, set up gear 13 and screw rod 14, rotate rocking handle 3, drive gear 13 through screw rod 14 and rotate, and then drive pivot 11 and side explanation board 9 and rotate, make and form certain contained angle between side explanation board 9 and the positive explanation board 10, make the student of classroom side can see the blackboard writing clearly, rotate to the suitable position and stop the back, because screw rod 14 has auto-lock nature with being connected of gear 13, consequently, need not to set up fixing device and fix side explanation board 9, make the operation simple more convenient, be convenient for improve teacher's teaching efficiency.

In this embodiment, preferably, the lower ends of the two side surfaces of the explanation board frame 1 are fixedly provided with the shaft heads 17, the inner side surfaces of the side plates 2 are provided with the fixed blocks 8, the side surfaces of the fixed blocks 8 are provided with the arc-shaped sliding grooves 15, the inner walls of the arc-shaped sliding grooves 15 are symmetrically provided with the cavities, eighteen elastic members 16 are uniformly distributed in the cavities, the end portions of the shaft heads 17 are embedded into the arc-shaped sliding grooves 15 and clamped with the elastic members 16, the explanation board frame 1 is slightly rotated upwards or downwards by the aid of the fixed blocks 8, the reflective area of the explanation board is reduced, the shaft heads 17 move back and forth in the arc-shaped sliding grooves 15 and extrude the elastic members 16, after rotation is stopped, the elastic members 16 on the two sides of the shaft heads 17 clamp and fix the shaft.

In this embodiment, it is preferable that the elastic member 16 includes a return spring and a sliding column, one end of the return spring is fixed on the inner bottom wall of the cavity, the sliding column extends into the sliding cavity and is fixedly connected with the return spring, and the extending end of the sliding column is of a hemispherical structure.

In this embodiment, preferably, a locking hole is disposed in the middle of the lower end surface of the explanation board frame 1, a locking mechanism 7 is disposed in the middle of the connecting plate 4, the locking mechanism 7 includes a spring box 71, a sliding ring 72, a compression spring 73, a locking pin 74, and a latch 75, the spring box 71 is fixed on the upper end surface of the connecting plate 4, the locking pin 74 penetrates through the spring box 71 and matches with the locking hole, the latch 75 is disposed on the upper end of the outer surface of the locking pin 74, the sliding ring 72 is disposed on the lower end of the outer surface, the sliding ring 72 is located inside the spring box 71, the compression spring 73 is disposed between the sliding ring 72 and the inner bottom wall of the spring box 71, a latch 76 is disposed. By arranging the locking mechanism 7, when the explanation board frame 1 needs to be rotated up and down, the lock pin 74 is firstly rotated to align the fixture block 75 with the clamp groove 76, then the lock pin 74 is pulled downwards, after the fixture block 75 is positioned in the spring box 71, the lock pin 74 is rotated to be larger than zero and smaller than one hundred eighty degrees, the fixture block 75 and the inner top wall of the spring box 71 are extruded and clamped under the action of the compression spring 73, and the lock pin 74 and the lock hole are released from being fixed.

In this embodiment, preferably, a fixed rod 12 is fixedly disposed at the lower end of the side plate 2, a movable support mechanism 5 is sleeved at both ends of the fixed rod 12, a bearing is disposed at the joint of the movable support mechanism 5 and the fixed rod 12, and a movable wheel and a rubber pad are disposed on the upper end surface and the lower end surface of the movable support mechanism 5 respectively. Through setting up removal supporting mechanism 5, remove supporting mechanism 5 and be connected with dead lever 12 rotation, when the rotation removes supporting mechanism 5 and makes the removal wheel be located the lower terminal surface, the removal of the explanation board of being convenient for, when the rotation removes supporting mechanism 5 and makes the rubber pad be located under, the fixed of the explanation board of being convenient for.

In this embodiment, it is preferable that a connection seam is provided at a connection point of the front explanation plate 10 and the rotation shaft 11. The side explanation plate 9 is prevented from engaging with the front explanation plate 10 when rotated by providing the connecting seam.

In this embodiment, it is preferable that the front explanation plate 10 is provided with a receiving groove 6 at a lower end of a front end surface thereof. The accommodating groove 6 is arranged, so that chalk and blackboard eraser can be conveniently placed and taken.

The utility model discloses a theory of operation and use flow:

the gear 13 and the screw 14 are arranged, the rocking handle 3 is rotated, the gear 13 is driven to rotate through the screw 14, and then the rotating shaft 11 and the side explanation plate 9 are driven to rotate, so that a certain included angle is formed between the side explanation plate 9 and the front explanation plate 10, students on the side of a classroom can see books clearly, after the students rotate to a proper position and stop, the screw 14 and the gear 13 are connected to have self-locking performance, so that a fixing device is not required to be arranged to fix the side explanation plate 9, the operation is simpler and more convenient, and the teaching efficiency of teachers is improved;

the reflecting area of the explanation board is reduced by arranging the fixing block 8 to slightly rotate the explanation board frame 1 upwards or downwards, meanwhile, the shaft head 17 moves back and forth in the arc-shaped sliding groove 15 and extrudes the elastic part 16, after the rotation is stopped, the elastic part 16 positioned at two sides of the shaft head 17 clamps and fixes the shaft head 17 to avoid the explanation board frame 1 from shaking and resetting, by arranging the locking mechanism 7, when the explanation board frame 1 needs to rotate up and down, firstly, the lock pin 74 is rotated to align the clamping block 75 with the clamping groove 76, then, the lock pin 74 is pulled downwards, after the clamping block 75 is positioned in the spring box 71, the lock pin 74 is rotated to be more than zero and less than one hundred eighty degrees, the clamping block 75 is extruded and clamped with the inner top wall of the spring box 71 under the action of the compression spring 73, so that the lock pin 74 is released from the locking hole, and by arranging the movable supporting mechanism 5, the movable supporting mechanism, when the rotation removes 5 supporting mechanism and makes the removal wheel be located the lower terminal surface, the removal of the explanation board of being convenient for, when the rotation removes 5 supporting mechanism and makes the rubber pad be located under, the fixed of the explanation board of being convenient for through setting up the joint seam, prevents that side explanation board 9 from taking place the block with front explanation board 10 when rotating, sets up and accomodates groove 6, is convenient for place and take chalk and blackboard sassafras.

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 contrast explanation board is used in multi-view education, includes explanation board frame (1) and curb plate (2), curb plate (2) set up the both sides of explanation board frame (1), just explanation board frame (1) with curb plate (2) are through axle swivelling joint, the below of explanation board frame (1) is provided with connecting plate (4), the both ends and the both sides of connecting plate (4) curb plate (2) fixed connection, its characterized in that: the fixed positive explanation board (10) that is provided with in middle part of explanation board frame (1), the both sides of positive explanation board (10) are provided with side explanation board (9), the upper and lower end of side explanation board (9) all is provided with pivot (11), pivot (11) are embedded in through the axle sleeve the inside of explanation board frame (1), the lower extreme the surface cover of pivot (11) is equipped with gear (13), pivot (11) with gear (13) are through key pin fixed connection, one side of gear (13) is provided with screw rod (14), gear (13) with screw rod (14) mesh mutually, screw rod (14) run through explanation board frame (1), just the front end of screw rod (14) is fixed and is provided with rocking handle (3).

2. A control explanation board for multi-angle education as claimed in claim 1, wherein: the fixed spindle nose (17) that is provided with of both sides face lower extreme of explanation board frame (1), the medial surface of curb plate (2) is provided with fixed block (8), convex spout (15) have been seted up to the side of fixed block (8), the inner wall symmetry of convex spout (15) is provided with the cavity, cavity evenly distributed has a plurality ofly, just be provided with elastic component (16) in the cavity, the tip of spindle nose (17) is embedded into in convex spout (15) and with elastic component (16) looks block.

3. A control explanation board for multi-angle education as claimed in claim 2, wherein: the elastic piece (16) comprises a return spring and a sliding column, one end of the return spring is fixed on the inner bottom wall of the concave cavity, the sliding column extends into the concave cavity and is fixedly connected with the return spring, and the extending end of the sliding column is of a hemispherical structure.

4. A control explanation board for multi-angle education as claimed in claim 1, wherein: a lock hole is arranged in the middle of the lower end surface of the explanation board frame (1), a locking mechanism (7) is arranged in the middle of the connecting board (4), the locking mechanism (7) comprises a spring box (71), a sliding ring (72), a compression spring (73), a lock pin (74) and a clamping block (75), the spring box (71) is fixed on the upper end surface of the connecting plate (4), the lock pin (74) penetrates through the spring box (71) and is matched with the lock hole, a clamping block (75) is arranged at the upper end of the outer surface of the locking pin (74), a sliding ring (72) is arranged at the lower end of the outer surface, the sliding ring (72) is positioned in the spring box (71), and a compression spring (73) is arranged between the slip ring (72) and the inner bottom wall of the spring box (71), the spring box is characterized in that a clamping groove (76) is formed in the upper end face of the spring box (71), and the clamping groove (76) is matched with the clamping block (75).

5. A control explanation board for multi-angle education as claimed in claim 1, wherein: the fixed dead lever (12) that is provided with of lower extreme of curb plate (2), the both ends cover of dead lever (12) is equipped with removes supporting mechanism (5), remove supporting mechanism (5) with the junction of dead lever (12) is provided with the bearing, just the upper and lower terminal surface that removes supporting mechanism (5) is provided with respectively removes wheel and rubber pad.

6. A control explanation board for multi-angle education as claimed in claim 1, wherein: and a connecting seam is arranged at the joint of the front explanation plate (10) and the rotating shaft (11).

7. A control explanation board for multi-angle education as claimed in claim 1, wherein: the lower end of the front end face of the front explanation plate (10) is provided with a containing groove (6).