CN214541249U

CN214541249U - Paraboloid demonstration teaching aid for high school mathematics

Info

Publication number: CN214541249U
Application number: CN202120272651.1U
Authority: CN
Inventors: 徐雷; 王岩梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-10-29
Anticipated expiration: 2031-02-01

Abstract

The application discloses paraboloid demonstration teaching aid for high school mathematics, including flat board, backup pad, mount pad, mounting hole, screwed pipe, threaded rod, square hole, rotary disk, first steel wire, second steel wire, first cylindrical gear, first pivot, second cylindrical gear, first conical gear, second pivot, second conical gear, rocker, plastics grip cover, deep floor, minor axis, bearing, square bar and magnet piece. This application useful part lies in providing the drive through the rocker, carry out the transmission through acceleration rate drive mechanism, realize the demonstration, rotation through the demonstration piece forms the paraboloid, provide the demonstration, compare with prior art, wholly have acceleration rate drive mechanism, the transmission effect through inside first cylindrical gear, second cylindrical gear, first conical gear, second conical gear realizes the acceleration rate effect, be convenient for demonstrate the quick rotation of piece, be convenient for form the paraboloid and demonstrate.

Description

Paraboloid demonstration teaching aid for high school mathematics

Technical Field

The application relates to a paraboloid demonstration teaching aid, in particular to a paraboloid demonstration teaching aid for high school mathematics.

Background

High school is short for high-grade middle school, and Chinese middle school is divided into primary middle school and high-grade middle school, and the primary middle school and the high-grade middle school belong to the category of middle education; senior middle schools are higher education institutions after nine-year compulsory education in China is finished, and the university is started at the beginning of the bearing of the junior middle school and the beginning of the lower school and generally manufactured in three years; high school education in china includes: common high-grade middle school, common middle-grade professional school, adult high school, professional high school, middle-grade technician school, professional middle-grade professional middle school, middle-grade teacher school and the like; wherein mathematics is an important subject of high school.

Although the device that has the paraboloid demonstration among the prior art, nevertheless be difficult to carry out the fast turn and adjust, the rotational speed of demonstration piece probably is slower, is difficult for demonstrateing, is difficult for adjusting simultaneously, and especially altitude mixture control's operation is comparatively complicated, and is inconvenient to use. Therefore, a paraboloid demonstration teaching aid for high school mathematics is provided aiming at the problems.

Disclosure of Invention

In order to solve the defects of the prior art, the application provides a paraboloid demonstration teaching aid for high school mathematics, which comprises a flat plate and a supporting plate fixedly installed on one side of the bottom of the flat plate, wherein the bottom of the supporting plate is rotatably installed on the top of an installation seat, a threaded pipe is rotatably installed on the surface of the flat plate, the inner ring of the threaded pipe is in threaded connection with the surface of a rod, a rotating disc is fixedly connected to the bottom end of the rod, and a detachable demonstration piece is arranged at the top end of the rod; an installation space is formed at the bottom of the flat plate and one side of the supporting plate, an acceleration transmission mechanism is arranged in the installation space and connected with the threaded pipe, a rocker is fixedly connected to the input end of the acceleration transmission mechanism, and the rocker is rotatably connected with the plate surface of the supporting plate; the bearing is fixedly sleeved on the outer pipe wall of the threaded pipe and is embedded in the flat plate.

Furthermore, the mounting seat is of an L-shaped plate-shaped structure, a reinforcing rib plate is fixedly connected to a bent part of the mounting seat, mounting holes are formed in the surface of the mounting seat, and the number of the mounting holes is two.

Furthermore, a short shaft is rotatably arranged at the top of the mounting seat, the top end of the short shaft is fixedly connected with the center of the bottom of the supporting plate, and a rotating shaft damper is arranged at the mounting position of the short shaft and the mounting seat.

Further, the demonstration piece comprises a first steel wire and a second steel wire, the number of the second steel wires is two, and the bottom ends of the second steel wires are fixedly connected with the center of the bottom of the first steel wire.

Further, the bottom fixedly connected with square pole of first steel wire, the bottom fixedly connected with magnet piece of square pole, the square pole is connected with the square hole gomphosis of seting up at threaded rod top middle part, the magnet piece is connected with threaded rod magnetism.

Furthermore, a plastic holding sleeve is fixedly sleeved at one end of the rocker and is of a circular tube type structure.

Further, the speed-increasing transmission mechanism comprises a first cylindrical gear, a first rotating shaft, a second cylindrical gear, a first conical gear, a second rotating shaft and a second conical gear, one end of the first rotating shaft is rotatably connected with the bottom of the flat plate, the second cylindrical gear is fixedly sleeved on the shaft surface of the first rotating shaft, the first cylindrical gear is fixedly sleeved on the bottom end of the threaded pipe and is connected with the second cylindrical gear in a meshed mode, the first conical gear is fixedly sleeved on the bottom end of the first rotating shaft, one end of the second rotating shaft is rotatably connected with the plate surface of the supporting plate, the second conical gear is fixedly sleeved on the tail end of the second rotating shaft in a meshed mode, the first conical gear is connected with the second conical gear in a meshed mode, and one end of the second rotating shaft is fixedly connected with one end of the rocker.

Further, the diameter of the second cylindrical gear is three to four times of the diameter of the first cylindrical gear.

Further, the second conical gear diameter is four to five times the first conical gear diameter.

Further, the surface of first steel wire and the surface of second steel wire all fixedly cup joint the plastics protective sheath.

The beneficial effect of this application is: the application provides a parabolic demonstration teaching aid for high school mathematics convenient to demonstrate piece altitude mixture control and change.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is a schematic view of a connection structure of a supporting plate and a mounting seat according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a connection structure of a flat plate and a threaded pipe according to an embodiment of the present application;

FIG. 4 is a schematic view of a demonstration element and a square bar according to an embodiment of the present application;

FIG. 5 is a schematic view of a square bar and magnet block configuration according to an embodiment of the present application;

fig. 6 is a schematic view of a threaded rod and a square hole according to an embodiment of the present disclosure.

In the figure: 1. the steel wire reinforced plastic bearing comprises a flat plate, 2, a supporting plate, 3, a mounting seat, 4, a mounting hole, 5, a threaded pipe, 6, a threaded rod, 601, a square hole, 7, a rotating disk, 8, a first steel wire, 9, a second steel wire, 10, a first cylindrical gear, 11, a first rotating shaft, 12, a second cylindrical gear, 13, a first conical gear, 14, a second rotating shaft, 15, a second conical gear, 16, a rocker, 17, a plastic holding sleeve, 18, a reinforcing rib plate, 19, a short shaft, 20, a bearing, 21, a square rod, 22 and a magnet block.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a paraboloid demonstration teaching aid for high school mathematics comprises a flat plate 1 and a supporting plate 2 fixedly arranged on one side of the bottom of the flat plate 1, wherein the bottom of the supporting plate 2 is rotatably arranged with the top of a mounting seat 3,

a threaded pipe 5 is rotatably mounted on the surface of the flat plate 1, an inner ring of the threaded pipe 5 is in threaded connection with a face of a threaded rod 6, a rotating disc 7 is fixedly connected to the bottom end of the threaded rod 6, and a detachable demonstration piece is arranged at the top end of the threaded rod 6;

an installation space is formed at the bottom of the flat plate 1 and one side of the supporting plate 2, an acceleration transmission mechanism is arranged in the installation space and connected with the threaded pipe 5, the input end of the acceleration transmission mechanism is fixedly connected with a rocker 16, and the rocker 16 is rotatably connected with the plate surface of the supporting plate 2;

the bearing 20 is fixedly sleeved on the outer pipe wall of the threaded pipe 5, and the bearing 20 is embedded and installed inside the flat plate 1.

The mounting seat 3 is of an L-shaped plate-shaped structure, a reinforcing rib plate 18 is fixedly connected to a bent part of the mounting seat 3, mounting holes 4 are formed in the surface of the mounting seat 3, the number of the mounting holes 4 is two, the mounting holes are used for being fixedly mounted on a desktop and providing mounting, and mounting hole sites are provided through the mounting holes 4; a short shaft 19 is rotatably mounted at the top of the mounting seat 3, the top end of the short shaft 19 is fixedly connected with the center of the bottom of the supporting plate 2, and a rotating shaft damper is arranged at the mounting position of the short shaft 19 and the mounting seat 3, so that the rotating mounting is realized, the rotating adjustment is convenient, and the position of the demonstration is changed; the demonstration piece comprises a first steel wire 8 and two second steel wires 9, the number of the second steel wires 9 is two, the bottom ends of the two second steel wires 9 are fixedly connected with the center of the bottom of the first steel wire 8, the first steel wire 8 is in a parabolic shape, and the two second steel wires 9 also form the parabolic shape, so that the rotation is facilitated to form a paraboloid; the bottom of the first steel wire 8 is fixedly connected with a square rod 21, the bottom end of the square rod 21 is fixedly connected with a magnet block 22, the square rod 21 is connected with a square hole 601 formed in the middle of the top end of the threaded rod 6 in an embedded mode, the magnet block 22 is magnetically connected with the threaded rod 6, an installation structure is provided, embedded installation and disassembly and assembly operations are carried out, the threaded rod 6 is made of iron and can be magnetically connected with the magnet block 22 through embedding and pulling out of the square rod; one end of the rocker 16 is fixedly sleeved with a plastic holding sleeve 17, and the plastic holding sleeve 17 is of a circular tube type structure; the speed-increasing transmission mechanism comprises a first cylindrical gear 10, a first rotating shaft 11, a second cylindrical gear 12, a first conical gear 13, a second rotating shaft 14 and a second conical gear 15, one end of the first rotating shaft 11 is rotatably connected with the bottom of the flat plate 1, a second cylindrical gear 12 is fixedly sleeved on the shaft surface of the first rotating shaft 11, the first cylindrical gear 10 is fixedly sleeved with the bottom end of the threaded pipe 5, the first cylindrical gear 10 is meshed with the second cylindrical gear 12, a first conical gear 13 is fixedly sleeved at the bottom end of the first rotating shaft 11, one end of the second rotating shaft 14 is rotatably connected with the plate surface of the supporting plate 2, a second conical gear 15 is fixedly sleeved at the tail end of the second rotating shaft 14, the first conical gear 13 is meshed with the second conical gear 15, and one end of the second rotating shaft 14 is fixedly connected with one end of a rocker 16; the diameter of the second cylindrical gear 12 is three to four times that of the first cylindrical gear 10; the diameter of the second conical gear 15 is four to five times of that of the first conical gear 13, and the speed-up operation is realized through meshing transmission, so that the rotating speed after driving is improved; and plastic protective sleeves are fixedly sleeved on the surfaces of the first steel wire 8 and the second steel wire 9.

When the device is used, the whole device is arranged on a desktop, an installation hole position is provided through the installation hole 4, and the installation seat 3 and the desktop are fixedly arranged through the installation screw;

by rotating the supporting plate 2, the supporting plate 2 and the mounting base 3 rotate, the display position and the manual operation position can be changed, after adjustment and demonstration, the square rod 21 at the bottom of the demonstration piece is embedded with the square hole 601 to realize installation, the rocker 16 is shaken to rotate the second rotating shaft 14 so as to rotate the second conical gear 15, when the second conical gear 15 rotates, the first rotating shaft 11 is driven through the meshing transmission of the second conical gear 15 and the first conical gear 13, the second cylindrical gear 12 rotates along with the first rotating shaft 11, and the demonstration piece on the threaded pipe 5 also rotates through the meshing transmission between the second cylindrical gear 12 and the first cylindrical gear 10, the threaded pipe 5 rotates relative to the flat plate 1, meanwhile, the threaded rod 6 rotates along with the threaded pipe 5, after transmission, the effect of acceleration is realized, so that the demonstration piece can rapidly rotate to form a paraboloid for demonstration;

when the height of the demonstration piece needs to be adjusted, one hand holds the rocker 16 to realize holding and limiting, so that the threaded pipe 5 is prevented from rotating, the other hand rotates the rotating disk 7 to enable the threaded rod 6 to rotate relative to the threaded pipe 5, so that the threaded rod 6 and the threaded pipe 5 rotate relatively, and when the threaded rod 6 rotates, the extension length of the threaded rod 6 at the top of the threaded pipe 5 is changed, so that the height of the demonstration piece is adjusted, the integral adjusting operation is simple, and the use is convenient;

when needing to demonstrate the change of piece, through lifting the demonstration piece for square bar 21 breaks away from with square hole 601, accomplishes the separation, thereby realizes the dismantlement of demonstration piece, changes new demonstration piece, makes the square bar 21 of demonstration piece insert the square hole 601 in, can, carry out magnetic adsorption through magnet piece 22, realize spacingly, accomplish the installation.

The application has the advantages that:

this parabolic demonstration teaching aid is applicable to the parabolic demonstration in high school's mathematics, it is when the demonstration, provide the drive through rocker 16, carry out the transmission through acceleration rate drive mechanism, realize the demonstration piece, rotation through the demonstration piece, form the paraboloid, provide the demonstration, compare with prior art, wholly have acceleration rate drive mechanism, first cylindrical gear 10 through inside, second cylindrical gear 12, first conical gear 13, the transmission effect of second conical gear 15, realize the acceleration rate effect, be convenient for demonstrate the quick rotation of piece, be convenient for form paraboloid and demonstrate.

Meanwhile, the whole body has a function of rotation adjustment, the installation is carried out on a desktop through the installation seat 3, the installation is carried out through the rotation of the support plate 2 and the installation seat 3, the rotation adjustment can be realized, the adjustment of the display position and the manual operation position can be carried out, the convenience is provided for the whole use, meanwhile, the whole body has a design of height adjustment, the relative rotation between the threaded rod 6 and the threaded pipe 5 is realized, the change of the extending length of the threaded rod 6 at the top of the threaded pipe 5 is realized, the adjustment of the height of the demonstration piece is realized, the whole adjustment operation is simple, one hand is used for limiting by holding the rocker 16, the limitation of the threaded pipe 5 is realized, the rotation of the threaded pipe 5 is avoided, the other hand is used for rotating the demonstration piece, the threaded rod 6 is rotated, the operation can be carried out, and the whole operation is simple.

Simultaneously, the demonstration piece is convenient to disassemble and assemble, the square rod 21 and the square hole 601 are embedded or separated, the installation and the disassembly can be realized, the convenience is provided for the whole use, and the different demonstration pieces can be conveniently replaced for demonstration.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a paraboloid demonstration teaching aid for high school mathematics which characterized in that: the demonstration device comprises a flat plate (1) and a supporting plate (2) fixedly mounted on one side of the bottom of the flat plate (1), wherein the bottom of the supporting plate (2) is rotatably mounted with the top of a mounting seat (3), a threaded pipe (5) is rotatably mounted on the surface of the flat plate (1), the inner ring of the threaded pipe (5) is in threaded connection with the surface of a threaded rod (6), a rotating disc (7) is fixedly connected with the bottom end of the threaded rod (6), and a detachable demonstration piece is arranged at the top end of the threaded rod (6);

an installation space is formed at the bottom of the flat plate (1) and one side of the supporting plate (2), an acceleration transmission mechanism is arranged in the installation space and connected with the threaded pipe (5), the input end of the acceleration transmission mechanism is fixedly connected with a rocker (16), and the rocker (16) is rotatably connected with the plate surface of the supporting plate (2);

the outer pipe wall of the threaded pipe (5) is fixedly sleeved with a bearing (20), and the bearing (20) is embedded in the flat plate (1).

2. The paraboloid demonstration teaching aid for high school mathematics according to claim 1, wherein the paraboloid demonstration teaching aid comprises: the mounting seat (3) is of an L-shaped plate-shaped structure, a reinforcing rib plate (18) is fixedly connected to the bending part of the mounting seat (3), mounting holes (4) are formed in the surface of the mounting seat (3), and the number of the mounting holes (4) is two.

3. The paraboloid demonstration teaching aid for high school mathematics according to claim 1, wherein the paraboloid demonstration teaching aid comprises: the top of the mounting seat (3) is rotatably provided with a short shaft (19), the top end of the short shaft (19) is fixedly connected with the center of the bottom of the supporting plate (2), and a rotating shaft damper is arranged at the mounting position of the short shaft (19) and the mounting seat (3).

4. The paraboloid demonstration teaching aid for high school mathematics according to claim 1, wherein the paraboloid demonstration teaching aid comprises: the demonstration piece comprises a first steel wire (8) and a second steel wire (9), the number of the second steel wires (9) is two, and the bottom ends of the second steel wires (9) are fixedly connected with the center of the bottom of the first steel wire (8).

5. The paraboloid demonstration teaching aid for high school mathematics according to claim 4, wherein the paraboloid demonstration teaching aid comprises: the bottom fixedly connected with square pole (21) of first steel wire (8), the bottom fixedly connected with magnet piece (22) of square pole (21), square pole (21) are connected with square hole (601) gomphosis seted up at threaded rod (6) top middle part, magnet piece (22) are connected with threaded rod (6) magnetism.

6. The paraboloid demonstration teaching aid for high school mathematics according to claim 1, wherein the paraboloid demonstration teaching aid comprises: one end of the rocker (16) is fixedly sleeved with a plastic holding sleeve (17), and the plastic holding sleeve (17) is of a circular tube type structure.

7. The paraboloid demonstration teaching aid for high school mathematics according to claim 1, wherein the paraboloid demonstration teaching aid comprises: the speed-increasing transmission mechanism comprises a first cylindrical gear (10), a first rotating shaft (11), a second cylindrical gear (12), a first conical gear (13), a second rotating shaft (14) and a second conical gear (15), one end of the first rotating shaft (11) is rotatably connected with the bottom of the flat plate (1), the second cylindrical gear (12) is fixedly sleeved on the shaft surface of the first rotating shaft (11), the first cylindrical gear (10) is fixedly sleeved with the bottom end of the threaded pipe (5), the first cylindrical gear (10) is meshed with the second cylindrical gear (12), the bottom end of the first rotating shaft (11) is fixedly sleeved with the first conical gear (13), one end of the second rotating shaft (14) is rotatably connected with the plate surface of the supporting plate (2), the tail end of the second rotating shaft (14) is fixedly sleeved with the second conical gear (15), and the first conical gear (13) is meshed with the second conical gear (15), one end of the second rotating shaft (14) is fixedly connected with one end of the rocker (16).

8. The paraboloid demonstration teaching aid for high school mathematics according to claim 7, wherein the paraboloid demonstration teaching aid comprises: the diameter of the second cylindrical gear (12) is three to four times of that of the first cylindrical gear (10).

9. The paraboloid demonstration teaching aid for high school mathematics according to claim 7, wherein the paraboloid demonstration teaching aid comprises: the diameter of the second conical gear (15) is four to five times of the diameter of the first conical gear (13).

10. The paraboloid demonstration teaching aid for high school mathematics according to claim 4, wherein the paraboloid demonstration teaching aid comprises: the surface of the first steel wire (8) and the surface of the second steel wire (9) are both fixedly sleeved with plastic protective sleeves.