CN214671300U - Special teaching board of giving lessons of english specialty - Google Patents
Special teaching board of giving lessons of english specialty Download PDFInfo
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- CN214671300U CN214671300U CN202120597068.8U CN202120597068U CN214671300U CN 214671300 U CN214671300 U CN 214671300U CN 202120597068 U CN202120597068 U CN 202120597068U CN 214671300 U CN214671300 U CN 214671300U
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- teaching board
- teaching
- fixedly connected
- board
- fixed
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Abstract
The utility model discloses a special teaching board of giving lessons of english specialty relates to education and teaching field. This special teaching board of english specialty teaching: the utility model provides a special teaching board of english specialty teaching, includes first teaching board and second teaching board, and first teaching board is equipped with fixed casing with the top of second teaching board, and fixed casing is inside to be equipped with the movable mechanism, and the movable mechanism includes the pivot, rotates through the bearing in the pivot and is connected with the gear, the top fixedly connected with L shape dead lever of first teaching board, fixedly connected with second rack on the L shape dead lever, the first rack of top fixedly connected with of second teaching board. This special teaching board of english specialty teaching when pulling first teaching board or second teaching board, can all drive another opposite motion simultaneously, also can be spacing the third teaching board in the space between first teaching board and second teaching board, and the third teaching board is just can conveniently realize the expansion to this device face to the pulling third teaching board.
Description
Technical Field
The utility model relates to an education and teaching technical field specifically is a special teaching board of giving lessons of english specialty.
Background
The teaching board is a board placed in a classroom or a meeting room, and is used for writing contents with chalk or a water-based pen to play a role in explaining and demonstrating.
When the existing teaching board is used, the board surface cannot be enlarged or reduced so as to be suitable for different teaching environments and teaching contents, and the unnecessary places cannot be quickly erased, so that the teaching efficiency of a teacher is reduced, a large amount of time is wasted, the paper-version teaching contents prepared by the teacher cannot be displayed to students in detail, and therefore, the teaching board special for English major teaching is designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model discloses a special teaching board of english specialty teaching to solve the problem of proposing in the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a special teaching board for teaching English major comprises a first teaching board and a second teaching board, wherein fixed shells are arranged at the tops of the first teaching board and the second teaching board, first guide rails are fixedly connected inside the fixed shells, the first guide rails penetrate through the fixed shells, movable rods are slidably connected inside the two first guide rails, one movable rod is fixedly connected to the top of the first teaching board, the other movable rod is fixedly connected to the top of the second teaching board, and a movable mechanism is arranged inside the fixed shell;
the movable mechanism comprises a rotating shaft, the rotating shaft is fixedly connected inside the fixed shell, a gear is connected to the rotating shaft in a rotating mode through a bearing, an L-shaped fixing rod is fixedly connected to the top of the first teaching board, a second rack is fixedly connected to one end of the L-shaped fixing rod, the second rack is connected with the gear in a meshed mode, a first rack is fixedly connected to the top of the second teaching board, and the first rack is connected with the gear in a meshed mode.
Preferably, the back of first teaching board and second teaching board is equipped with the third teaching board, the equal fixedly connected with second guide rail in the back of first teaching board and second teaching board, the equal fixedly connected with connecting rod in both sides of third teaching board, the positive fixedly connected with fixture block of connecting rod, fixture block sliding connection is inside the second guide rail.
Preferably, the second guide rail is L-shaped, the second guide rail penetrates through the front faces of the first teaching board and the second teaching board and is located between the first teaching board and the second teaching board, the cross section of the second guide rail is trapezoidal, and the fixture block is in the shape of a circular truncated cone.
Preferably, the bottom of first teaching board and second teaching board all is equipped with locating component, locating component is including fixed frame, fixed frame is located the bottom of first teaching board and second teaching board, the spacing casing of equal fixed connection on first teaching board and the second teaching board, the inside sliding connection of spacing casing has the stopper, the inside fixedly connected with spring of spacing casing, the one end of spring offsets with the top of stopper, spacing casing and stopper sliding connection are inside fixed frame.
Preferably, the bottom of third teaching board is equipped with the fixed plate, fixed plate fixed connection is at the back of fixed frame, the bottom fixedly connected with bolt of third teaching board, the spout has been seted up on the fixed plate, bolt sliding connection is inside the spout, threaded connection has the nut on the bolt.
Preferably, the fixed plate and the fixed frame are penetrated through by the sliding groove, the sliding groove is in a T shape, and four through holes corresponding to the two groups of limiting blocks are formed in the fixed frame.
The utility model discloses a special teaching board of english specialty teaching, its beneficial effect who possesses as follows:
1. this special teaching board of english specialty teaching, set up the third teaching board, fixed casing, the second rack, first rack and gear, when the user uses, when pulling first teaching board or second teaching board, all can drive another opposite movement simultaneously, also can be spacing in the space between first teaching board and second teaching board with the third teaching board, pulling third teaching board, just can conveniently realize the expansion to this device face, with be applicable to how much of teacher's writing content, prevent to need repeatedly clean when teacher's writing is too much and write, the time of teacher's teaching has been increased.
2. This special teaching board of english specialty teaching is equipped with the third teaching board through the back that sets up first teaching board and second teaching board, the equal fixedly connected with second guide rail in the back of first teaching board and second teaching board, the equal fixedly connected with connecting rod in both sides of third teaching board, the positive fixedly connected with fixture block of connecting rod, fixture block sliding connection have realized the purpose that increases the face inside the second guide rail.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of a first teaching board portion of the present invention;
FIG. 3 is an enlarged view of part A of the present invention;
fig. 4 is a cross-sectional view of a stationary housing portion of the present invention;
figure 5 is a cross-sectional view of a fixed frame part of the present invention;
fig. 6 is a perspective view of a second rail portion of the present invention.
In the figure: 1. a first teaching board; 2. a second teaching board; 3. a third teaching board; 4. a stationary housing; 5. a first guide rail; 6. a movable rod; 7. a fixing frame; 8. a bolt; 9. a second guide rail; 10. a fixing plate; 11. a connecting rod; 1101. a clamping block; 12. a nut; 13. an L-shaped fixing rod; 14. a second rack; 15. a first rack; 16. a gear; 17. a rotating shaft; 18. a limiting shell; 19. a limiting block; 20. a spring.
Detailed Description
The embodiment of the utility model discloses special teaching board of english specialty teaching, as shown in fig. 1-5, including first teaching board 1 and second teaching board 2, the top of first teaching board 1 and second teaching board 2 is equipped with fixed casing 4, the inside fixedly connected with first guide rail 5 of fixed casing 4, first guide rail 5 runs through fixed casing 4, two first guide rails 5 inside all slidably connected with movable rod 6, one of them movable rod 6 is fixedly connected at the top of first teaching board 1, another movable rod 6 is fixedly connected at the top of second teaching board 2, fixed casing 4 inside is equipped with the movable mechanism;
the movable mechanism comprises a rotating shaft 17, the rotating shaft 17 is fixedly connected inside the fixed shell 4, a gear 16 is rotatably connected to the rotating shaft 17 through a bearing, the top of the first teaching board 1 is fixedly connected with an L-shaped fixing rod 13, one end of the L-shaped fixing rod 13 is fixedly connected with a second rack 14, the second rack 14 is meshed with the gear 16, the top of the second teaching board 2 is fixedly connected with a first rack 15, and the first rack 15 is meshed with the gear 16.
The back of first teaching board 1 and second teaching board 2 is equipped with third teaching board 3, the equal fixedly connected with second guide rail 9 in the back of first teaching board 1 and second teaching board 2, the equal fixedly connected with connecting rod 11 in both sides of third teaching board 3, the positive fixedly connected with fixture block 1101 of connecting rod 11, fixture block 1101 sliding connection has realized the purpose that increases the face inside second guide rail 9.
The second guide rail 9 is L-shaped, the second guide rail 9 penetrates through the front faces of the first teaching board 1 and the second teaching board 2 and is located between the first teaching board 1 and the second teaching board 2, the cross section of the second guide rail 9 is trapezoidal, the clamping block 1101 is in a circular truncated cone shape, and the purpose of limiting the third teaching board 3 is achieved.
The bottom of first teaching board 1 and second teaching board 2 all is equipped with locating component, locating component includes fixed frame 7, fixed frame 7 is located the bottom of first teaching board 1 and second teaching board 2, the spacing casing 18 of equal fixed connection on first teaching board 1 and the second teaching board 2, the inside sliding connection of spacing casing 18 has stopper 19, the inside fixedly connected with spring 20 of spacing casing 18, the one end of spring 20 offsets with stopper 19's top, spacing casing 18 and stopper 19 sliding connection are inside fixed frame 7, the stability of first teaching board 1 and second teaching board 2 has been increased.
The bottom of third teaching board 3 is equipped with fixed plate 10, and fixed plate 10 fixed connection is at the back of fixed frame 7, and the bottom fixedly connected with bolt 8 of third teaching board 3 has seted up the spout on fixed plate 10, and bolt 8 sliding connection is inside the spout, and threaded connection has nut 12 on bolt 8, has realized the location to third teaching board 3.
The spout runs through fixed plate 10 and fixed frame 7, and the spout is T shape, sets up four through-holes corresponding with two sets of stoppers 19 on the fixed frame 7, realizes the joint to spacing casing 18.
The working principle is as follows: referring to fig. 2, 3 and 5, when a user needs to enlarge the usable area of the device, the second teaching board 2 is pulled first, the second teaching board 2 moves to drive the first rack 15, the first rack 15 is meshed with the gear 16 to drive the gear 16 to rotate in the fixed housing 4, the gear 16 is meshed with the second rack 14 to drive the second rack 14 to move in opposite directions to the first rack 15, the second rack 14 moves to drive the L-shaped fixing rod 13 fixed on the top of the first teaching board 1, so that the first teaching board 1 and the second teaching board 2 move in opposite directions, the first teaching board 1 and the second teaching board 2 move to drive the two second guide rails 9, the connecting rod 11 slides in the second guide rails 9, and the third teaching board 3 can be pulled out from between the first teaching board 1 and the second teaching board 2, the third teaching board 3 is pulled to enable the third teaching board 3 to be located on the same plane with the first teaching board 1 and the second teaching board 2, so that the purpose of enlarging the area of the device is achieved, the first teaching board 1 or the second teaching board 2 can be pulled to achieve the purpose of enabling the first teaching board 1 and the second teaching board 2 to move oppositely, and the area of the surface of the device can be reduced.
According to fig. 4, when the first teaching board 1, the second teaching board 2 and the third teaching board 3 need to be limited by expanding or reducing the board surface of the device, the fixing frame 7 is provided with four through holes corresponding to the two sets of limiting shells 18, when the first teaching board 1 and the second teaching board 2 move on the fixing frame 7, the limiting shells 18 and the limiting blocks 19 are driven to slide in the fixing frame 7, and the limiting blocks 19 are located in the limiting shells 18, the bottoms of the limiting blocks 19 are abutted against the bottoms of the inner side walls of the fixing frame 7, so that the first teaching board 1 and the second teaching board 2 can move on the fixing shell 4 and the fixing frame 7 simultaneously, when the board surface is reduced or expanded, the limiting blocks 19 are subjected to the reverse elasticity of the springs 20 to eject the limiting blocks 19 into the through holes, so as to limit the first teaching board 1 and the second teaching board 2, when the third teaching board 3 is limited, through turning tightly nut 12 for nut 12 offsets with fixed plate 10 or the bottom of fixed frame 7, reaches and carries out spacing purpose to third teaching board 3.
This device is through setting up third teaching board 3, fixed casing 4, second rack 14, first rack 15 and gear 16, when the user uses, when pulling first teaching board 1 or second teaching board 2, all can drive another opposite movement simultaneously, also can be spacing in the space between first teaching board 1 and second teaching board 2 with third teaching board 3, pulling third teaching board 3, just can conveniently realize the expansion to this device face, with be applicable to how much of teacher's writing content, prevent to need repeatedly clean when teacher's writing is too much and write, teacher's teaching's time has been increased, and simple structure, easy operation is convenient.
Claims (6)
1. The utility model provides a special teaching board of english specialty teaching, includes first teaching board (1) and second teaching board (2), its characterized in that: the top parts of the first teaching board (1) and the second teaching board (2) are provided with fixed casings (4), the inside of each fixed casing (4) is fixedly connected with a first guide rail (5), each first guide rail (5) penetrates through the corresponding fixed casing (4), movable rods (6) are slidably connected inside each first guide rail (5), one movable rod (6) is fixedly connected to the top part of the corresponding first teaching board (1), the other movable rod (6) is fixedly connected to the top part of the corresponding second teaching board (2), and a movable mechanism is arranged inside each fixed casing (4);
the moving mechanism comprises a rotating shaft (17), the rotating shaft (17) is fixedly connected inside the fixed shell (4), the rotating shaft (17) is connected with a gear (16) in a rotating mode through a bearing, the top fixedly connected with L-shaped fixing rod (13) of the first teaching board (1), one end fixedly connected with a second rack (14) of the L-shaped fixing rod (13), the second rack (14) is connected with the gear (16) in a meshed mode, the top fixedly connected with first rack (15) of the second teaching board (2) is connected with the gear (16) in a meshed mode, and the first rack (15) is connected with the gear (16) in a meshed mode.
2. The teaching board special for english profession teaching according to claim 1, wherein: the back of first teaching board (1) and second teaching board (2) is equipped with third teaching board (3), the equal fixedly connected with second guide rail (9) in the back of first teaching board (1) and second teaching board (2), the equal fixedly connected with connecting rod (11) in both sides of third teaching board (3), the positive fixedly connected with fixture block (1101) of connecting rod (11), fixture block (1101) sliding connection is inside second guide rail (9).
3. The teaching board special for english profession teaching according to claim 2, wherein: the second guide rail (9) is L-shaped, the second guide rail (9) penetrates through the front faces of the first teaching board (1) and the second teaching board (2) and is located between the first teaching board (1) and the second teaching board (2), the cross section of the second guide rail (9) is trapezoidal, and the clamping block (1101) is in the shape of a circular truncated cone.
4. The teaching board special for english profession teaching according to claim 1, wherein: first teaching board (1) all is equipped with locating component with the bottom of second teaching board (2), locating component is including fixed frame (7), fixed frame (7) are located the bottom of first teaching board (1) and second teaching board (2), equal fixed connection spacing casing (18) on first teaching board (1) and second teaching board (2), the inside sliding connection of spacing casing (18) has stopper (19), the inside fixedly connected with spring (20) of spacing casing (18), the one end of spring (20) offsets with the top of stopper (19), spacing casing (18) and stopper (19) sliding connection are inside fixed frame (7).
5. The teaching board special for english profession teaching according to claim 2, wherein: the bottom of third teaching board (3) is equipped with fixed plate (10), fixed plate (10) fixed connection is at the back of fixed frame (7), the bottom fixedly connected with bolt (8) of third teaching board (3), the spout has been seted up on fixed plate (10), bolt (8) sliding connection is inside the spout, threaded connection has nut (12) on bolt (8).
6. The teaching board special for English profession teaching of claim 5, wherein: the spout runs through fixed plate (10) and fixed frame (7), the spout is T shape, four through-holes that correspond with two sets of stopper (19) have been seted up on fixed frame (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597068.8U CN214671300U (en) | 2021-03-24 | 2021-03-24 | Special teaching board of giving lessons of english specialty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597068.8U CN214671300U (en) | 2021-03-24 | 2021-03-24 | Special teaching board of giving lessons of english specialty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214671300U true CN214671300U (en) | 2021-11-09 |
Family
ID=78455692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120597068.8U Expired - Fee Related CN214671300U (en) | 2021-03-24 | 2021-03-24 | Special teaching board of giving lessons of english specialty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214671300U (en) |
-
2021
- 2021-03-24 CN CN202120597068.8U patent/CN214671300U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |