CN209785312U - Teaching board convenient to operation demonstration - Google Patents
Teaching board convenient to operation demonstration Download PDFInfo
- Publication number
- CN209785312U CN209785312U CN201820822368.XU CN201820822368U CN209785312U CN 209785312 U CN209785312 U CN 209785312U CN 201820822368 U CN201820822368 U CN 201820822368U CN 209785312 U CN209785312 U CN 209785312U
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- fixedly connected
- teaching board
- gear
- base
- block
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Abstract
The utility model discloses a teaching board convenient to operation demonstration, the on-line screen storage device comprises a base, the bottom of base and the top fixed connection of connecting rod, the bottom fixedly connected with gyro wheel of connecting rod. This teaching board convenient to operation demonstration, drive the motion of tooth post through trampling the footboard, the tooth post drives first gear revolve, first gear drives second gear revolve, the second gear drives drive gear revolve, drive gear drives the threaded rod and rotates, the threaded rod drives the screw thread piece and reciprocates, the screw thread piece drives fixed teaching board and removal teaching board through the support and reciprocates, thereby can adjust the height of face, can expand the removal teaching board through the pulling handle, enlarge the area of face, the gyro wheel through the base bottom can remove the teaching board simultaneously, whole device simple structure, high durability and convenient use, can remove the teaching board as required, and in the use, carry out altitude mixture control according to actual conditions, it is very convenient.
Description
Technical Field
The utility model relates to a teaching equipment technical field specifically is a teaching board convenient to operation demonstration.
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. The front body of the teaching board is a blackboard, and the traditional blackboard is formed by simply coating black paint on the surface of a hard object such as a flat wood board or a cement board and the like and writing with chalk after the black paint is dried. With the rise of new materials, the traditional blackboard for teaching is gradually eliminated and replaced. The teaching board that uses at present is all highly fixed, can not adjust the height of face as required, and the face area is less, has brought the inconvenience for the use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a teaching board convenient to operation demonstration has solved the problem of proposing in the above-mentioned background art.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a teaching board convenient for operation and demonstration comprises a base, wherein the bottom of the base is fixedly connected with the top end of a connecting rod, the bottom end of the connecting rod is fixedly connected with a roller, both sides of the base are fixedly connected with pin shafts, screw rods are arranged inside the pin shafts, the top ends of the screw rods are fixedly connected with the bottom ends of rotating blocks, the bottom ends of the screw rods penetrate through the pin shafts and extend to the outside of the pin shafts to be fixedly connected with the top ends of supporting blocks, bearings are arranged at the center of the top of the base, pedals are arranged at both ends of the top of the base, the bottoms of the pedals are fixedly connected with the top ends of connecting rods, the bottom ends of the connecting rods penetrate through the top of the base and extend to the inside of the base to be fixedly connected with the top ends of tooth columns, a limiting block is arranged above the tooth columns and fixedly connected with the outer sides of the, and the first gear is fixedly connected with the inner wall of the base through a first rotating shaft, a fluted disc is fixedly connected on the first gear, a second gear is arranged on one side of the fluted disc and is meshed with the fluted disc, the second gear is fixedly connected with the inner wall of the bottom of the base through a second rotating shaft, a transmission gear is arranged on one side of the second gear and is meshed with the second gear, the top of the transmission gear is fixedly connected with the bottom end of a threaded rod, the top end of the threaded rod penetrates through a bearing and extends to the inside of the fixed block to be fixedly connected with the inner wall of the top of the fixed block through the bearing, a threaded block is arranged on the threaded rod, two sides of the threaded block are fixedly connected with one end of a connecting plate, the other end of the connecting plate is slidably connected with the inner walls of two sides of the fixed block, the top of the connecting plate is fixedly connected with the, and extend to the outside of fixed block and the bottom fixed connection of fixed teaching board, the bottom fixedly connected with of fixed teaching board puts the thing board, one side of fixed teaching board is provided with the removal teaching board, and removes teaching board and fixed teaching board sliding connection, one side of removing the teaching board is provided with the handle.
Preferably, the outer side of the connecting rod is sleeved with a spring, the top end of the spring is fixedly connected with the bottom of the pedal, and the bottom end of the spring is fixedly connected with the top of the base.
Preferably, the first gear is provided with first teeth, one side of the tooth column close to the first gear is provided with second teeth, the shape of the second teeth is set to be right-angled triangle, and one sharp corner of the second teeth faces upwards.
Preferably, the pin shaft is internally provided with a thread groove, and the pin shaft is in threaded connection with the screw rod through the thread groove.
preferably, one side that fixed teaching board is close to the removal teaching board is provided with the slide rail, one side that the removal teaching board is close to fixed teaching board is provided with the slider, and removes the teaching board and pass through slider and slide rail sliding connection.
(III) advantageous effects
The utility model provides a teaching board convenient to operation demonstration. The method has the following beneficial effects:
(1) This teaching board convenient to operation demonstration, drive the motion of tooth post through trampling the footboard, the tooth post drives first gear revolve, first gear drives second gear revolve, the second gear drives drive gear revolve, drive gear drives the threaded rod and rotates, the threaded rod drives the screw thread piece and reciprocates, the screw thread piece drives fixed teaching board and removal teaching board through the support and reciprocates, thereby can adjust the height of face, can launch the removal teaching board through the pulling handle, enlarge the area of face, the gyro wheel through the base bottom can remove the teaching board simultaneously, whole device simple structure, high durability and convenient use, can remove the teaching board as required, and in the use, carry out altitude mixture control according to actual conditions, it is very convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the base of the present invention;
Fig. 3 is a schematic structural view of the first gear of the present invention;
Fig. 4 is a side view of the movable teaching board of the present invention.
In the figure: the teaching aid comprises a base 1, a connecting rod 2, a roller 3, a pin shaft 4, a screw rod 5, a rotating block 6, a supporting block 7, a bearing 8, a pedal 9, a connecting rod 10, a tooth post 11, a limiting block 12, a first gear 13, a first rotating shaft 14, a fluted disc 15, a second gear 16, a second rotating shaft 17, a transmission gear 18, a threaded rod 19, a fixed block 20, a threaded block 21, a connecting plate 22, a support 23, a fixed teaching plate 24, a storage plate 25, a movable teaching plate 26, a handle 27, a spring 28, a first tooth 29, a second tooth 30, a sliding rail 31 and a sliding block 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution: a teaching board convenient for operation demonstration comprises a base 1, wherein the bottom of the base 1 is fixedly connected with the top end of a connecting rod 2, the bottom end of the connecting rod 2 is fixedly connected with a roller 3, both sides of the base 1 are fixedly connected with pin shafts 4, screw rods 5 are arranged inside the pin shafts 4, thread grooves are arranged inside the pin shafts 4, the pin shafts 4 are in threaded connection with the screw rods 5 through the thread grooves, the top ends of the screw rods 5 are fixedly connected with the bottom end of a rotating block 6, the bottom ends of the screw rods 5 penetrate through the pin shafts 4 and extend to the outside of the pin shafts 4 to be fixedly connected with the top of a supporting block 7, a bearing 8 is arranged in the center of the top of the base 1, pedals 9 are arranged at both ends of the top of the base 1, the bottom of each pedal 9 is fixedly connected with the top end of a connecting rod 10, a spring 28 is sleeved outside the connecting rod 10, the top end of the, the bottom end of the connecting rod 10 penetrates through the top of the base 1 and extends into the base 1 to be fixedly connected with the top end of the tooth post 11, a limiting block 12 is arranged above the tooth post 11, the limiting block 12 is fixedly connected with the outer side of the connecting rod 10, a first gear 13 is arranged on one side of the tooth post 11, the first gear 13 is fixedly connected with the inner wall of the base 1 through a first rotating shaft 14, a first tooth 29 is arranged on the first gear 13, a second tooth 30 is arranged on one side of the tooth post 11 close to the first gear 13, the shape of the second tooth 30 is a right-angled triangle, one sharp corner of the second tooth 30 faces upwards, a tooth disc 15 is fixedly connected with the first gear 13, a second gear 16 is arranged on one side of the tooth disc 15, the second gear 16 is meshed with the tooth disc 15, the second gear 16 is fixedly connected with the inner wall of the bottom of the base 1 through a second rotating shaft 17, a transmission gear 18 is arranged on, the transmission gear 18 is engaged with the second gear 16, the top of the transmission gear 18 is fixedly connected with the bottom end of a threaded rod 19, the top end of the threaded rod 19 penetrates through a bearing 8 and extends into the fixed block 20 to be fixedly connected with the inner wall of the top of the fixed block 20 through the bearing 8, a threaded block 21 is arranged on the threaded rod 19, the threaded block 21 is in threaded connection with the threaded rod 19, two sides of the threaded block 21 are fixedly connected with one end of a connecting plate 22, the other end of the connecting plate 22 is in sliding connection with the inner walls of two sides of the fixed block 20, the top of the connecting plate 22 is fixedly connected with the bottom end of a bracket 23, the top end of the bracket 23 penetrates through the top of the fixed block 20 and extends to the outside of the fixed block 20 to be fixedly connected with the bottom of a fixed teaching board 24, the bottom of the fixed teaching board 24 is fixedly connected with a placing board 25, one side of the fixed teaching board, a slide rail 31 is arranged on one side of the fixed teaching board 24 close to the movable teaching board 26, a slide block 32 is arranged on one side of the movable teaching board 26 close to the fixed teaching board 24, the movable teaching board 26 is connected with the slide rail 31 in a sliding manner through the slide block 32, a handle 27 is arranged on one side of the movable teaching board 26, the tooth post 11 is driven to move by stepping on the pedal 9, the first gear 13 is driven to rotate by the movement of the tooth post 11, the second gear 16 is driven to rotate by the first gear 13 through a fluted disc 15, the transmission gear 18 is driven to rotate by the rotation of the second gear 16, the threaded rod 19 is driven to rotate by the rotation of the transmission gear 18, the threaded block 21 is driven to move up and down by the rotation of the threaded rod 19, the threaded block 21 drives the fixed teaching board 24 and the movable teaching board 26 to move up and down through a bracket 23, so that the height of the board surface can be adjusted, simultaneously through setting the shape of second tooth 30 to right angled triangle and a closed angle up, can drive first gear 13 when making tooth post 11 move down and rotate, and tooth post 11 does not then drive first gear 13 when moving up, make threaded rod 19 corotation and reversal through trampling two footboard 9 respectively, thereby can adjust the rising and the reduction of face, can launch removal teaching board 26 through pulling handle 27, enlarge the area of face, simultaneously can remove the teaching board through gyro wheel 3 of base 1 bottom, and drive supporting shoe 7 through screw rod 5 and reciprocate, can be fixed with the teaching board, whole device simple structure, high durability and convenient use, can remove the teaching board as required, and in the use, carry out height control according to actual conditions, and is very convenient.
The working principle is as follows: the pedal 9 is trampled to drive the tooth post 11 to move, the movement of the tooth post 11 drives the first gear 13 to rotate, the first gear 13 drives the second gear 16 to rotate through the fluted disc 15, the rotation of the second gear 16 drives the transmission gear 18 to rotate, the rotation of the transmission gear 18 drives the threaded rod 19 to rotate, the rotation of the threaded rod 19 drives the threaded block 21 to move up and down, the threaded block 21 drives the fixed teaching board 24 and the movable teaching board 26 to move up and down through the bracket 23, so that the height of the board surface can be adjusted, the pedal 9 can automatically rebound after being pressed down by arranging the spring 28 at the bottom of the pedal 9, meanwhile, the shape of the second tooth 30 is arranged into a right triangle, one sharp corner is upward, the first gear 13 can be driven to rotate when the tooth post 11 moves down, the first gear 13 cannot be driven to rotate when the tooth post 11 moves up, the threaded rod 19 and the threaded rod can rotate reversely by trampling, thereby can adjust the rising and the reduction of face, can expand removal teaching board 26 through pulling handle 27, enlarge the area of face, can remove the teaching board through the gyro wheel 3 of base 1 bottom simultaneously to drive supporting shoe 7 through screw rod 5 and reciprocate, can be fixed with the teaching board.
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 understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of the invention being defined by the appended claims and their equivalents, it being noted that the electrical components shown therein are all electrically connected to an external master controller and 220V mains, and the master controller may be a conventional known device that controls computers and the like.
Claims (5)
1. A teaching board convenient to operation demonstration, includes base (1), its characterized in that: the bottom of the base (1) is fixedly connected with the top end of the connecting rod (2), the bottom end of the connecting rod (2) is fixedly connected with the roller (3), both sides of the base (1) are fixedly connected with the pin shafts (4), the inside of each pin shaft (4) is provided with a screw rod (5), the top end of each screw rod (5) is fixedly connected with the bottom end of the rotating block (6), the bottom end of each screw rod (5) penetrates through each pin shaft (4) and extends to the outside of each pin shaft (4) to be fixedly connected with the top of the supporting block (7), the center of the top of the base (1) is provided with a bearing (8), both ends of the top of the base (1) are provided with pedals (9), the bottom of each pedal (9) is fixedly connected with the top end of the connecting rod (10), the bottom end of each connecting rod (10) penetrates through the top of the base (1) and extends to the inside of the base (1) to, the upper portion of the tooth column (11) is provided with a limiting block (12), the limiting block (12) is fixedly connected with the outer side of the connecting rod (10), one side of the tooth column (11) is provided with a first gear (13), the first gear (13) is fixedly connected with the inner wall of the base (1) through a first rotating shaft (14), the first gear (13) is fixedly connected with a fluted disc (15), one side of the fluted disc (15) is provided with a second gear (16), the second gear (16) is meshed with the fluted disc (15), the second gear (16) is fixedly connected with the inner wall of the bottom of the base (1) through a second rotating shaft (17), one side of the second gear (16) is provided with a transmission gear (18), the transmission gear (18) is meshed with the second gear (16), the top of the transmission gear (18) is fixedly connected with the bottom of a threaded rod (19), and the top of the threaded rod (19) penetrates through a bearing (8), and extends to the inside of the fixed block (20) and is fixedly connected with the inner wall of the top of the fixed block (20) through a bearing (8), a threaded rod (19) is provided with a threaded block (21), two sides of the threaded block (21) are fixedly connected with one end of a connecting plate (22), the other end of the connecting plate (22) is slidably connected with the inner walls of two sides of the fixed block (20), the top of the connecting plate (22) is fixedly connected with the bottom end of a bracket (23), the top end of the bracket (23) penetrates through the top of the fixed block (20) and extends to the outside of the fixed block (20) and is fixedly connected with the bottom of a fixed teaching plate (24), the bottom of the fixed teaching plate (24) is fixedly connected with an object placing plate (25), one side of the fixed teaching plate (24) is provided with a movable teaching plate (26), and the movable teaching plate (26) is slidably connected with the fixed teaching plate (24), a handle (27) is arranged on one side of the movable teaching board (26).
2. A teaching board for facilitating the manipulation of a presentation according to claim 1, wherein: the outer side of the connecting rod (10) is sleeved with a spring (28), the top end of the spring (28) is fixedly connected with the bottom of the pedal (9), and the bottom end of the spring (28) is fixedly connected with the top of the base (1).
3. a teaching board for facilitating the manipulation of a presentation according to claim 1, wherein: be provided with first tooth (29) on first gear (13), one side that tooth post (11) is close to first gear (13) is provided with second tooth (30), the shape of second tooth (30) sets up to right triangle, and a closed angle of second tooth (30) is up.
4. a teaching board for facilitating the manipulation of a presentation according to claim 1, wherein: the inside of round pin axle (4) is provided with the thread groove, and round pin axle (4) pass through thread groove and screw rod (5) threaded connection.
5. A teaching board for facilitating the manipulation of a presentation according to claim 1, wherein: one side of the fixed teaching board (24) close to the movable teaching board (26) is provided with a sliding rail (31), one side of the movable teaching board (26) close to the fixed teaching board (24) is provided with a sliding block (32), and the movable teaching board (26) is in sliding connection with the sliding rail (31) through the sliding block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820822368.XU CN209785312U (en) | 2018-05-30 | 2018-05-30 | Teaching board convenient to operation demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820822368.XU CN209785312U (en) | 2018-05-30 | 2018-05-30 | Teaching board convenient to operation demonstration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209785312U true CN209785312U (en) | 2019-12-13 |
Family
ID=68786381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820822368.XU Expired - Fee Related CN209785312U (en) | 2018-05-30 | 2018-05-30 | Teaching board convenient to operation demonstration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209785312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210699A (en) * | 2020-03-04 | 2020-05-29 | 李晓岩 | Height-adjustable and mobilizable english teaching aid |
| CN112137285A (en) * | 2020-09-27 | 2020-12-29 | 上海善已道企业咨询服务股份有限公司 | Data processing device for E-commerce commodity sales |
| CN113081320A (en) * | 2021-04-07 | 2021-07-09 | 孙云侠 | Medical arm support frame |
| CN114648835A (en) * | 2020-12-21 | 2022-06-21 | 大连理工江苏研究院有限公司 | Block chain-based virtual coin simulated transaction device and method |
-
2018
- 2018-05-30 CN CN201820822368.XU patent/CN209785312U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210699A (en) * | 2020-03-04 | 2020-05-29 | 李晓岩 | Height-adjustable and mobilizable english teaching aid |
| CN112137285A (en) * | 2020-09-27 | 2020-12-29 | 上海善已道企业咨询服务股份有限公司 | Data processing device for E-commerce commodity sales |
| CN114648835A (en) * | 2020-12-21 | 2022-06-21 | 大连理工江苏研究院有限公司 | Block chain-based virtual coin simulated transaction device and method |
| CN113081320A (en) * | 2021-04-07 | 2021-07-09 | 孙云侠 | Medical arm support frame |
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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: 20191213 Termination date: 20210530 |