CN209822098U

CN209822098U - Rotatable mathematical probability demonstration device model

Info

Publication number: CN209822098U
Application number: CN201920248316.0U
Authority: CN
Inventors: 郑铭海; 吕翔; 黄蓉; 胡平
Original assignee: Xinyang Agriculture and Forestry University
Current assignee: Xinyang Agriculture and Forestry University
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2019-12-20
Anticipated expiration: 2029-02-27

Abstract

The utility model discloses a rotatable mathematics probability presentation device model, including the end base, there is the bull stick at the top of end base through bearing swing joint, the surface cover of bull stick is equipped with the rotating turret, all be provided with arc limit and draw-in groove around the rotating turret surface, the fixed slot has been seted up at the top of end base, the inner chamber fixedly connected with motor of fixed slot, the output shaft of motor extends to the top and the fixedly connected with rolling disc of end base, the top fixedly connected with arc slider and the fixture block of rolling disc, the surface and the arc limit looks adaptation of arc slider. The utility model provides a traditional mathematics probability presentation device model can not the omnidirectional rotate let student all around watch, reduced the problem of student's study mathematics probability interest, this mathematics probability presentation device model has rotatable advantage, has improved student's learning efficiency, has further improved student's learning effect.

Description

Rotatable mathematical probability demonstration device model

Technical Field

The utility model relates to a mathematical education technical field specifically is a rotatable mathematics probability presentation device model.

Background

Mathematics is a subject of researching concepts such as quantity, structure, change, space, information and the like, and belongs to a form science from a certain angle, a mathematical probability experiment is a common experiment in mathematics courses of middle school students, and probability is a quantity display of probability of occurrence of random events.

The mathematics probability presentation device model can be used in the teaching of mathematics probability, however traditional mathematics probability presentation device model can not all-round rotation let student all around watch, needs mr's continuous removal to be transported, has just increased mr's intensity of labour like this intangibly, and it is long to have prolonged the teaching, is unfavorable for increasing student and learns mathematics probability interest, has reduced student's learning efficiency, and then has reduced the effect that the student learnt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatable mathematics probability presentation device model has rotatable advantage, has solved traditional mathematics probability presentation device model and can not the omnidirectional rotation let student all around watch, has reduced the problem of student's study mathematics probability interest.

In order to achieve the above object, the utility model provides a following technical scheme: a rotatable mathematical probability demonstration device model comprises a bottom base, wherein the top of the bottom base is movably connected with a rotating rod through a bearing, the surface of the rotating rod is sleeved with a rotating frame, the periphery of the surface of the rotating frame is provided with an arc edge and a clamping groove, the top of the bottom base is provided with a fixed groove, the inner cavity of the fixed groove is fixedly connected with a motor, the output shaft of the motor extends to the top of the bottom base and is fixedly connected with a rotating disc, the top of the rotating disc is fixedly connected with an arc-shaped sliding block and a clamping block, the surface of the arc-shaped sliding block is matched with the arc edge, the clamping groove is matched with the clamping block, the top of the rotating rod is fixedly connected with a bottom plate, the positive surface of the bottom plate is fixedly connected with a fixed rod, the surface of the fixed rod is sleeved with a probability turntable, the, one side of mount is run through and is provided with the movable rod, the left end fixedly connected with flashboard of movable rod, the surface cover of movable rod is equipped with the spring, the left end and the flashboard fixed connection of spring, the right-hand member and the mount fixed connection of spring.

Preferably, the right end fixed mounting of movable rod has the handle, the handle uses with the movable rod cooperation.

Preferably, the surface of the rotating rod is sleeved with a protective shell, and the bottom of the protective shell is fixedly connected with the bottom base.

Preferably, four corners of the bottom base are fixedly connected with roller frames, and inner cavities of the roller frames are movably connected with rollers through rotating shafts.

Preferably, the surface of the probability rotating disk is provided with uniformly distributed areas, and the areas are provided with different colors.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a rotating turret, arc limit, draw-in groove, including a motor, an end cap, a controller, and a cover plate, the cooperation of arc slider and fixture block is used, can make the bull stick rotate, it has interval time's rotation to a direction to change moreover, it can not the omnidirectional rotation to have solved traditional mathematics probability presentation device model and lets all around student watch, the problem of student study mathematics probability interest has been reduced, this mathematics probability presentation device model has rotatable advantage, student's learning efficiency has been improved, student's learning effect has further been improved.

2. The utility model discloses a setting of handle can the person of facilitating the use to the movable rod operation, provides convenient for the user, through the setting of protecting crust, can block that the dust falls on the surface of rotating turret and rolling disc and appear influencing the normal pivoted condition of rotating turret, has prolonged the life of rotating turret and rolling disc, uses through the cooperation of gyro wheel frame and gyro wheel, can improve the portability of subbase, has made things convenient for the removal of subbase.

Drawings

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

FIG. 2 is a front sectional view of the connecting structure of the base and the protective shell according to the present invention;

FIG. 3 is a top view of the connecting structure of the rotating frame and the rotating disc of the present invention;

fig. 4 is a perspective view of the rotating disk structure of the present invention.

In the figure: 1. a bottom base; 2. a rotating rod; 3. a rotating frame; 4. arc edge; 5. a card slot; 6. fixing grooves; 7. a motor; 8. rotating the disc; 9. an arc-shaped sliding block; 10. a clamping block; 11. a base plate; 12. fixing the rod; 13. a probability carousel; 14. a pointer; 15. a fixed mount; 16. a movable rod; 17. a shutter plate; 18. a spring; 19. a handle; 20. protecting the shell; 21. a roller frame; 22. and a roller.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a rotatable mathematical probability demonstration device model comprises a bottom base 1, the top of the bottom base 1 is movably connected with a rotating rod 2 through a bearing, the surface of the rotating rod 2 is sleeved with a rotating frame 3, the periphery of the surface of the rotating frame 3 is provided with an arc edge 4 and a clamping groove 5, the top of the bottom base 1 is provided with a fixed groove 6, the inner cavity of the fixed groove 6 is fixedly connected with a motor 7, the output shaft of the motor 7 extends to the top of the bottom base 1 and is fixedly connected with a rotating disc 8, the top of the rotating disc 8 is fixedly connected with an arc slide block 9 and a clamping block 10, the surface of the arc slide block 9 is matched with the arc edge 4, the clamping groove 5 is matched with the clamping block 10, the top of the rotating rod 2 is fixedly connected with a bottom plate 11, the front surface of the bottom plate 11 is fixedly connected with a fixed rod 12, the surface of the fixed rod 12 is sleeved with a, one side of mount 15 is run through and is provided with movable rod 16, and the left end fixedly connected with flashboard 17 of movable rod 16, and the surface cover of movable rod 16 is equipped with spring 18, and spring 18's left end and flashboard 17 fixed connection, spring 18's right-hand member and mount 15 fixed connection.

The utility model discloses in: the right end fixed mounting of activity pole 16 has handle 19, handle 19 uses with the cooperation of activity pole 16, through the setting of handle 19, can the person of facilitating the use operate activity pole 16, provides convenience for the user.

The utility model discloses in: the surface cover of bull stick 2 is equipped with protective housing 20, and protective housing 20's bottom and end base 1 fixed connection through protective housing 20's setting, can block that the dust falls on the surface of rotating turret 3 and rolling disc 8 and appear influencing the normal pivoted condition of bull stick 2, have prolonged the life of rotating turret 3 and rolling disc 8.

The utility model discloses in: all fixedly connected with gyro wheel frame 21 in the four corners of bottom base 1 bottom, the inner chamber of gyro wheel frame 21 has gyro wheel 22 through pivot swing joint, uses through the cooperation of gyro wheel frame 21 and gyro wheel 22, can improve the portability of subbase 1, has made things convenient for the removal of subbase 1.

The utility model discloses in: the surface of the probability disk 13 is provided with evenly distributed areas, which are provided with different colors.

The working principle is as follows: when the utility model is used, the motor 7 is started, the output shaft of the motor 7 drives the rotating disc 8 to rotate, the rotating disc 8 drives the arc-shaped slide block 9 and the clamping block 10 to rotate, the arc-shaped slide block 9 slides along the arc edge 4, the clamping block 10 slides into the inner cavity of the clamping groove 5, thereby driving the rotating frame 3 to rotate, so that the rotating frame 3 rotates at intervals, the rotating frame 3 drives the rotating rod 2 to rotate at intervals, and further to achieve the purpose of rotation, the user rotates the probability rotary disk 13, so that the probability rotary disk 13 rotates for a period of time, the user pushes the movable rod 16, make flashboard 17 and probability carousel 13 contact and extension spring 18, let probability carousel 13 stop rotating, the user loosens movable rod 16, and the restoring force of spring 18 makes flashboard 17 break away from the surface of probability carousel 13, then the record, has practiced thrift the latency of probability demonstration, has improved probability demonstration efficiency.

In summary, the following steps: this rotatable mathematics probability presentation device model uses through the cooperation of rotating turret 3, arc limit 4, draw-in groove 5, motor 7, rolling disc 8, arc slider 9 and fixture block 10, can make bull stick 2 rotate, changes to the rotation that a direction has interval time moreover, has solved traditional mathematics probability presentation device model and can not the omnidirectional rotation and let student all around watch, has reduced the problem of student's study mathematics probability interest.

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.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rotatable mathematical probability demonstration apparatus model, comprising a base (1), characterized in that: the top of the bottom base (1) is movably connected with a rotating rod (2) through a bearing, the surface of the rotating rod (2) is sleeved with a rotating frame (3), arc edges (4) and clamping grooves (5) are arranged on the periphery of the surface of the rotating frame (3), a fixed groove (6) is formed in the top of the bottom base (1), a motor (7) is fixedly connected to an inner cavity of the fixed groove (6), an output shaft of the motor (7) extends to the top of the bottom base (1) and is fixedly connected with a rotating disc (8), an arc sliding block (9) and a clamping block (10) are fixedly connected to the top of the rotating disc (8), the surface of the arc sliding block (9) is matched with the arc edges (4), the clamping grooves (5) are matched with the clamping block (10), a bottom plate (11) is fixedly connected to the top of the rotating rod (2), and a fixed rod (12) is fixedly connected to the front surface of the, the utility model discloses a safety belt conveyor, including dead lever (12), the surface cover of dead lever (12) is equipped with probability carousel (13), the top fixedly connected with pointer (14) of dead lever (12), the positive fixed surface of bottom plate (11) is connected with mount (15), one side of mount (15) is run through and is provided with movable rod (16), the left end fixedly connected with flashboard (17) of movable rod (16), the surface cover of movable rod (16) is equipped with spring (18), the left end and flashboard (17) fixed connection of spring (18), the right-hand member and mount (15) fixed connection of spring (18).

2. A rotatable mathematical probability demonstration apparatus model according to claim 1 wherein: the right end of the movable rod (16) is fixedly provided with a handle (19), and the handle (19) is matched with the movable rod (16) for use.

3. A rotatable mathematical probability demonstration apparatus model according to claim 1 wherein: the surface cover of bull stick (2) is equipped with protective housing (20), the bottom and the end base (1) fixed connection of protective housing (20).

4. A rotatable mathematical probability demonstration apparatus model according to claim 1 wherein: four corners of the bottom base (1) are fixedly connected with roller frames (21), and inner cavities of the roller frames (21) are movably connected with rollers (22) through rotating shafts.

5. A rotatable mathematical probability demonstration apparatus model according to claim 1 wherein: the surface of the probability rotary table (13) is provided with uniformly distributed areas, and the areas are provided with different colors.