CN212990444U

CN212990444U - High-number calculus teaching board

Info

Publication number: CN212990444U
Application number: CN202022327479.3U
Authority: CN
Inventors: 杨丽华; 白守英; 金发来
Original assignee: Individual
Current assignee: Lanzhou Modern Vocational College
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-04-16
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a high number calculus teaching board, including the connecting rod, the one end fixedly connected with sill bar of connecting rod, the top fixedly connected with base of sill bar, the bracing piece has been cup jointed to the inside of base, spacing bolt has been cup jointed to the inside of bracing piece, the one end threaded connection of spacing bolt has the fixed plate, the one end fixedly connected with fixed block of fixed plate, there is the fly leaf inside of fixed block through pivot swing joint, bolt fixedly connected with kelly is passed through to the one end of fly leaf. This high number calculus teaching board sets up through the cooperation between fixture block, fly leaf, fixed plate and the sliding plate, and the fixture block can carry on spacingly to being connected between fly leaf and the fixed plate, and the fly leaf is put down the back, combines the relation of connection between sliding plate and the fixed plate, can stretch out the sliding plate, and what set up on the sliding plate has used coordinate and figure of calculus, can make things convenient for the teacher to give a speech, does not delay time.

Description

High-number calculus teaching board

Technical Field

The utility model relates to a teaching aid technical field specifically is a high number calculus teaching board.

Background

Calculus is the branch of mathematics for studying the differentiation, integration and related concepts and applications of functions in higher mathematics, is a basic subject of mathematics, and mainly comprises limitation, differential science, integral science and application thereof, wherein the differential science comprises the operation of obtaining derivatives, and is a set of theories about change rates. It makes the function, speed, acceleration and curve slope all can be discussed with a set of general symbols, and the integration science, including the operation of finding the integral, provides a set of general methods for defining and calculating area, volume, etc.

At present, some graphs and curves are often required to be drawn in advanced mathematics class, sometimes, the teacher draws something which is inconvenient for the students to understand, and the classroom time is delayed, meanwhile, a large amount of calculation is needed when calculating the calculus, and sometimes, the area of the teaching board is not enough to meet the teaching requirement.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high number calculus teaching board has solved 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: the utility model provides a high number calculus teaching board, includes the connecting rod, the one end fixedly connected with sill bar of connecting rod, the top fixedly connected with base of sill bar, the bracing piece has been cup jointed to the inside of base, spacing bolt has been cup jointed to the inside of bracing piece, spacing bolt's one end threaded connection has the fixed plate, the one end fixedly connected with fixed block of fixed plate, there is the fly leaf inside of fixed block through pivot swing joint, bolt fixedly connected with kelly is passed through to the one end of fly leaf, the inside swing joint of kelly one end has the fixture block, the sliding plate has been cup jointed to the inside of fixed plate, one side threaded connection of sliding plate has the spacing ring, the slipmat has been cup jointed to the one end of sill bar.

Optionally, the number of the bottom rods is two, and the two bottom rods are symmetrically arranged by taking the vertical central line of the connecting rod as a symmetry axis.

Optionally, the bottom of the fixing plate is fixedly connected with a placing table, and a placing groove is formed in the placing table.

Optionally, one end of the sliding plate is fixedly connected with a handle, and one side of the limiting ring is movably connected to the surface of the fixing plate.

Optionally, the number of the supporting rods is two, and the inner walls of the two supporting rods are movably connected with the two ends of the fixing plate respectively.

Optionally, one end of the clamping block is fixedly connected with a spring, and one end of the spring is fixedly connected inside the clamping rod.

(III) advantageous effects

The utility model provides a high number calculus teaching board possesses following beneficial effect:

1. this high number calculus teaching board sets up through the cooperation between fixture block, fly leaf, fixed plate and the sliding plate, and the fixture block can carry on spacingly to being connected between fly leaf and the fixed plate, and the fly leaf is put down the back, combines the relation of connection between sliding plate and the fixed plate, can stretch out the sliding plate, and what set up on the sliding plate has used coordinate and figure of calculus, can make things convenient for the teacher to give a speech, does not delay time.

2. This high number calculus teaching board sets up through the cooperation between spacing bolt, bracing piece and the fixed plate, combines spacing bolt can cooperate and spacing bolt and fixed plate between the hole of difference on the bracing piece between the relation of connection, and the teacher can adjust the height of fixed plate to can cooperate the different heights of teacher, make things convenient for teacher's use.

Drawings

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

FIG. 2 is a schematic diagram of the sliding plate structure of the present invention;

fig. 3 is a schematic view of the structure of the limiting ring of the present invention;

FIG. 4 is a schematic view of the structure of the fixture block of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a connecting rod; 2. a bottom bar; 3. a base; 4. a support bar; 5. a limit bolt; 6. a fixing plate; 7. a fixed block; 8. a movable plate; 9. a clamping rod; 10. a clamping block; 11. a sliding plate; 12. a limiting ring; 13. a non-slip mat; 14. a placing table; 15. a handle; 16. a spring.

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.

Referring to fig. 1 to 5, the present invention provides a technical solution: a high-number calculus teaching board comprises a connecting rod 1, wherein one end of the connecting rod 1 is fixedly connected with two bottom rods 2, the two bottom rods 2 are symmetrically arranged by taking a vertical central line of the connecting rod 1 as a symmetry axis, the top ends of the bottom rods 2 are fixedly connected with a base 3, a supporting rod 4 is sleeved inside the base 3, and under the action of the supporting rod 4, the fixing plate 6 and the like can be supported, the number of the supporting rods 4 is two, the inner walls of the two supporting rods 4 are respectively movably connected with the two ends of the fixing plate 6, the limiting bolt 5 is sleeved inside the supporting rods 4, one end of the limiting bolt 5 is connected with the fixing plate 6 in a threaded manner, through the connection relationship between the limit bolt 5 and the support rod 4, the limit bolt 5 can be matched with different holes on the support rod 4, the height of the fixing plate 6 can be adjusted through the connection relationship between the limiting bolt 5 and the fixing plate 6;

the bottom of the fixed plate 6 is fixedly connected with a placing table 14, a placing groove is arranged inside the placing table 14, through the effect of the placing table 14, a teacher can place some teaching aids such as rulers and the like into the placing groove, and the teaching aids are convenient to take when in use, one end of the fixing plate 6 is fixedly connected with the fixing block 7, the inside of the fixing block 7 is movably connected with the movable plate 8 through the rotating shaft, one end of the movable plate 8 is fixedly connected with the clamping rod 9 through a bolt, the inside of one end of the clamping rod 9 is movably connected with the clamping block 10, one end of the clamping block 10 is fixedly connected with the spring 16, one end of the spring 16 is fixedly connected inside the clamping rod 9, through the connection relationship between the movable plate 8 and the fixed plate 6, the movable plate 8 can rotate, and through the action of the fixture block 10, the connection between the movable plate 8 and the fixed plate 6 can be limited, and the fixture block 10 can be popped out for limiting through the action of the spring 16;

sliding plate 11 has been cup jointed to the inside of fixed plate 6, the one end fixedly connected with handle 15 of sliding plate 11, one side swing joint of spacing ring 12 is on the surface of fixed plate 6, effect through handle 15, can pull out sliding plate 11 from the inside of fixed plate 6, the figure that sets up on sliding plate 11 makes things convenient for the teacher to give a speech on the left side, do an extension to the teaching board simultaneously, make things convenient for the teacher to write the teaching, one side threaded connection of sliding plate 11 has spacing ring 12, effect through spacing ring 12, can be spacing to the connection between sliding plate 11 and the fixed plate 6, slipmat 13 has been cup jointed to the one end of sill bar 2.

The utility model discloses in, the device's working procedure as follows:

1. the limiting bolt 5 can be matched with different holes on the supporting rod 4 through the connection relationship between the limiting bolt 5 and the supporting rod 4, and the height of the fixing plate 6 can be adjusted through the connection relationship between the limiting bolt 5 and the fixing plate 6;

2. the movable plate 8 can rotate through the connection relationship between the movable plate 8 and the fixed plate 6, the connection between the movable plate 8 and the fixed plate 6 can be limited through the action of the clamping block 10, and the clamping block 10 can be popped out for limiting through the action of the spring 16;

3. put down the back with fly leaf 8, through the effect of handle 15, can pull out sliding plate 11 from the inside of fixed plate 6, the figure that sets up on sliding plate 11 makes things convenient for the teacher on the left to give a speech, does an extension to the teaching board simultaneously, makes things convenient for the teacher to write the teaching, through spacing ring 12's effect, can carry on spacingly to the connection between sliding plate 11 and the fixed plate 6.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high number calculus teaching board, includes connecting rod (1), its characterized in that: one end of the connecting rod (1) is fixedly connected with a bottom rod (2), the top end of the bottom rod (2) is fixedly connected with a base (3), a supporting rod (4) is sleeved inside the base (3), a limiting bolt (5) is sleeved inside the supporting rod (4), one end of the limit bolt (5) is connected with a fixed plate (6) in a threaded manner, one end of the fixed plate (6) is fixedly connected with a fixed block (7), a movable plate (8) is movably connected inside the fixed block (7) through a rotating shaft, one end of the movable plate (8) is fixedly connected with a clamping rod (9) through a bolt, a clamping block (10) is movably connected inside one end of the clamping rod (9), a sliding plate (11) is sleeved inside the fixed plate (6), one side of the sliding plate (11) is in threaded connection with a limiting ring (12), and one end of the bottom rod (2) is sleeved with an anti-slip pad (13).

2. The high-count calculus teaching board as claimed in claim 1, wherein: the number of the bottom rods (2) is two, and the bottom rods (2) are symmetrically arranged by taking the vertical central line of the connecting rod (1) as a symmetry axis.

3. The high-count calculus teaching board as claimed in claim 1, wherein: the bottom of the fixed plate (6) is fixedly connected with a placing table (14), and a placing groove is formed in the placing table (14).

4. The high-count calculus teaching board as claimed in claim 1, wherein: one end of the sliding plate (11) is fixedly connected with a handle (15), and one side of the limiting ring (12) is movably connected to the surface of the fixing plate (6).

5. The high-count calculus teaching board as claimed in claim 1, wherein: the number of the support rods (4) is two, and the inner walls of the two support rods (4) are movably connected with the two ends of the fixing plate (6) respectively.

6. The high-count calculus teaching board as claimed in claim 1, wherein: one end of the clamping block (10) is fixedly connected with a spring (16), and one end of the spring (16) is fixedly connected inside the clamping rod (9).