CN215382577U - Display device is used in mathematical probability teaching - Google Patents
Display device is used in mathematical probability teaching Download PDFInfo
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- CN215382577U CN215382577U CN202120131473.0U CN202120131473U CN215382577U CN 215382577 U CN215382577 U CN 215382577U CN 202120131473 U CN202120131473 U CN 202120131473U CN 215382577 U CN215382577 U CN 215382577U
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- limiting plate
- gear
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- support frame
- backup pad
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Abstract
The utility model discloses a display device for mathematical probability teaching, which comprises a support frame, wherein a connecting cavity is arranged in the middle of the support frame, a display board is connected in the middle of the support frame in the connecting cavity in a sliding manner, a connecting table is fixedly connected to the lower side of the display board, a sliding block is connected to the upper side of the connecting table in a sliding manner, a connecting disc is rotatably connected in the middle of the support frame in the connecting cavity, a support plate is fixedly connected in the middle of the right side of the support frame in a rotating manner, a gear is rotatably connected in the middle of the support plate, a limiting plate is slidably connected to the right side of the support plate in the gear, an extrusion bolt is connected to the side end of the support plate in a threaded manner, and the top end of the extrusion bolt abuts against the side end of the limiting plate.
Description
Technical Field
The utility model relates to the field of mathematical teaching, in particular to a display device for mathematical probability teaching.
Background
The branches of mathematics are numerous, and the probability is one of the most important ones. Probability is a scientific technique for studying random events, and is a number between 0 and 1, where 0 denotes no event and 1 denotes an event. Probability has wide application in our reality, such as weather forecast, lottery, earthquake forecast, sampling survey of products, and so on. In the process of teaching the probability, a large number of charts need to be drawn, and a ruler is needed for auxiliary drawing. The existing teaching display device is not provided with an auxiliary tool, needs to be carried by a teacher and is very inconvenient; and the prior display device can not adjust the display height more.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a display device for mathematical probability teaching to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a display device is used in mathematical probability teaching, includes the support frame, the centre of support frame is equipped with the connection chamber, the middle sliding connection that the support frame is located the connection chamber has the show board, the downside fixedly connected with connection platform of show board, the upside sliding connection of connection platform has the slider, the support frame is located the centre rotation of connecting the chamber and is connected with the connection pad, fixedly connected with backup pad in the middle of the right side of support frame, the centre of backup pad is rotated and is connected with the gear, the right side sliding connection that the backup pad is located the gear has the limiting plate, the side threaded connection of backup pad has the extrusion bolt, and the extrusion bolt top is supported and is leaned on at the limiting plate side.
Preferably, threaded connection has fixing bolt in the middle of the slider, the right side of slider articulates and is connected with three sections drawing chi, adjacent two rotate between the drawing chi and connect, two the length of drawing chi equals the height of show board, the upside the top fixedly connected with handle of drawing chi, be equipped with the scale on the drawing chi.
Preferably, the connecting teeth are annularly arranged at the side end of the connecting disc, the gear is meshed with the connecting teeth, the side end of the connecting disc is fixedly connected with a linkage shaft, the side end of the connecting table is provided with a sliding groove, and the linkage shaft is slidably connected in the sliding groove.
Preferably, the backup pad is U type structure, the limiting plate is the arc structure, the radian and the gear radian of limiting plate are the same, two spacing teeth of fixedly connected with on the arc concave surface of limiting plate, spacing tooth joint is in the teeth of a cogwheel clearance of gear, be equipped with the spring between limiting plate both sides and the backup pad.
Compared with the prior art, the utility model has the beneficial effects that: rotatory gear, the gear passes through and connects the meshing transmission of tooth to drive the connection pad and rotates, the universal driving shaft on the connection pad is rotatory along with the connection pad, the universal driving shaft also slides in the spout along with the connection pad rotates, the universal driving shaft can drive the show board and remove along the support frame, change the height of show board, make things convenient for the teacher to carry out the blackboard writing, also make things convenient for the student to watch simultaneously, the slider slides on connecting the bench, change the position of change chi, it removes to drive the drawing chi through the handle, it conveniently draws the chart to rotate three section drawing chi, conveniently impart knowledge to students, the teaching quality is improved.
Drawings
FIG. 1 is a schematic view showing a connection structure of a display device;
fig. 2 is a schematic diagram of a connection structure of the limiting plate.
In the figure: the device comprises a support frame 1, a display board 2, a connecting table 3, a sliding block 4, a drawing ruler 5, a handle 6, a sliding chute 7, a connecting disc 8, a linkage shaft 9, a support plate 10, a gear 11, a limit plate 12, limit teeth 13 and springs 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a display device is used in mathematical probability teaching, including support frame 1, the centre of support frame 1 is equipped with the connection chamber, the centre sliding connection that support frame 1 is located the connection chamber has show board 2, the downside fixedly connected with joint station 3 of show board 2, the upside sliding connection of joint station 3 has slider 4, support frame 1 is located the centre rotation of connecting the chamber and is connected with connection pad 8, fixedly connected with backup pad 10 in the middle of the right side of support frame 1, the centre of backup pad 10 is rotated and is connected with gear 11, the right side sliding connection that backup pad 10 is located gear 11 has limiting plate 12, the side threaded connection of backup pad 10 has the extrusion bolt, the extrusion bolt top is supported and is leaned on limiting plate 12 side, the extrusion bolt extrudees limiting plate 12.
The middle threaded connection of slider 4 has fixing bolt, the articulated three section drawing chi 5 that is connected with in right side of slider 4, rotate between the two adjacent sections drawing chi 5 and connect, the length of two sections drawing chi 5 equals the height of show board 2, can draw horizontal straight line at the upside of show board 2, fixedly connected with handle 6 is located at the top of upside drawing chi 5, be equipped with the scale on the drawing chi 5, it removes to drive drawing chi 5 through handle 6, it conveniently draws the chart to rotate three section drawing chi 5, the scale conveniently draws the straight line of different length.
The side end annular arrangement of connection pad 8 has the connection tooth, gear 11 and connection tooth meshing connection, the side end fixedly connected with universal driving shaft 9 of connection pad 8, the side of connecting platform 3 is equipped with spout 7, universal driving shaft 9 sliding connection is in spout 7, rotary gear 11, gear 11 drives connection pad 8 through the meshing transmission with the connection tooth and rotates, universal driving shaft 9 on the connection pad 8 rotates along with connection pad 8, universal driving shaft 9 also slides in spout 7 along with connection pad 8 rotates, universal driving shaft 9 can change the height of connecting platform 3 and show board 2.
The working principle is as follows: rotatory gear 11, gear 11 drives connection pad 8 through the meshing transmission with the connection tooth and rotates, universal driving shaft 9 on the connection pad 8 rotates along with connection pad 8, universal driving shaft 9 also slides in spout 7 along with connection pad 8 pivoted, universal driving shaft 9 can drive show board 2 and remove along support frame 1, change the height of show board 2, when drawing the chart, slider 4 slides on the joint table 3, change the position of drawing chi 5, drive drawing chi 5 through handle 6 and remove, it conveniently draws the chart to rotate three section drawing chi, the length of two sections drawing chi 5 equals the height of show board 2, can draw horizontal straight line at the upside of show board 2, the straight line of different length is conveniently drawn to the scale on the drawing chi 5.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a display device is used in mathematical probability teaching, includes support frame (1), its characterized in that: the centre of support frame (1) is equipped with the connection chamber, the centre sliding connection that support frame (1) is located the connection chamber has show board (2), downside fixedly connected with connection platform (3) of show board (2), the upside sliding connection of connecting platform (3) has slider (4), the centre that support frame (1) is located the connection chamber rotates and is connected with connection pad (8), fixedly connected with backup pad (10) in the middle of the right side of support frame (1), the centre of backup pad (10) rotates and is connected with gear (11), the right side sliding connection that backup pad (10) is located gear (11) has limiting plate (12), the side threaded connection of backup pad (10) has the extrusion bolt, and the extrusion bolt top is supported and is leaned on at limiting plate (12) side.
2. The demonstration device for mathematical probability teaching of claim 1, wherein: the middle threaded connection of slider (4) has fixing bolt, the right side of slider (4) is articulated to be connected with three section drawing chi (5), adjacent two rotate between drawing chi (5) and connect, two the length of drawing chi (5) equals the height of show board (2), the upside the fixedly connected with handle (6) of top department of drawing chi (5), be equipped with the scale on drawing chi (5).
3. The demonstration device for mathematical probability teaching of claim 1, wherein: the side end of the connecting disc (8) is annularly provided with connecting teeth, the gear (11) is meshed with the connecting teeth, the side end of the connecting disc (8) is fixedly connected with a linkage shaft (9), the side end of the connecting table (3) is provided with a sliding groove (7), and the linkage shaft (9) is slidably connected into the sliding groove (7).
4. The demonstration device for mathematical probability teaching of claim 1, wherein: the utility model discloses a gear, including backup pad (10), limiting plate (12), radian and gear (11) radian of limiting plate (12), backup pad (10) are U type structure, limiting plate (12) are the arc structure, the radian and gear (11) radian of limiting plate (12) are the same, two spacing teeth (13) of fixedly connected with on the arc concave surface of limiting plate (12), spacing tooth (13) joint is in the teeth of a cogwheel clearance of gear (11), be equipped with spring (14) between limiting plate (12) both sides and backup pad (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120131473.0U CN215382577U (en) | 2021-01-19 | 2021-01-19 | Display device is used in mathematical probability teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120131473.0U CN215382577U (en) | 2021-01-19 | 2021-01-19 | Display device is used in mathematical probability teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215382577U true CN215382577U (en) | 2022-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120131473.0U Active CN215382577U (en) | 2021-01-19 | 2021-01-19 | Display device is used in mathematical probability teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215382577U (en) |
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2021
- 2021-01-19 CN CN202120131473.0U patent/CN215382577U/en active Active
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