CN214705114U

CN214705114U - Probability presentation device for mathematical education

Info

Publication number: CN214705114U
Application number: CN202121024125.XU
Authority: CN
Inventors: 孙敏志
Original assignee: Yichun Early Childhood Teachers College
Current assignee: Yichun Early Childhood Teachers College
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-12
Anticipated expiration: 2031-05-13

Abstract

The utility model provides a probability presentation device for mathematical education, include: the probability demonstration device for the mathematical teaching is characterized by comprising a box body and supporting seats, wherein the supporting seats are fixedly arranged at four corners of the bottom of the box body, a power mechanism is arranged in the probability demonstration device for the mathematical teaching, a power spring in the mechanism is a power source in the whole mechanism, the rapid movement of an experimental ball can be realized through the mutual matching of a power-assisting rod and a push rod, a movement groove, a movable chamber and a limiting rod in the probability demonstration mechanism can provide a path and a block for the movement of the experimental ball, the probability can be clearly known through the movement path of the experimental ball, the experimental ball can be taken through the mutual matching of a sliding groove and a baffle in the taking mechanism, and the cyclic use of the device is realized through the mutual matching of a matching block, the device greatly increases the learning interest of students, is beneficial to improving the learning efficiency of the students, and is small in size and convenient for teachers to carry, and the operation is convenient and fast, and the practicability is strong.

Description

Probability presentation device for mathematical education

Technical Field

The utility model relates to a teaching equipment technical field especially relates to a probability presentation device is used in mathematical education.

Background

Probability, also known as "probability", is the amount of likelihood that a random event will occur. Random events are events that may or may not occur under the same conditions. For example, a random drawing of a good from a batch of good and bad merchandise, the "drawing of good" is a random event.

Most of the existing teachers explaining the probability are orally taught, which is inconvenient for students to digest, and some large schools are generally provided with probability demonstration equipment, but most of the probability demonstration equipment are large in size, inconvenient for teachers to carry in daily life and inconvenient, so that a probability demonstration device for mathematical education is needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a portable, and probability presentation device for mathematical education of simple operation.

The utility model provides a pair of probability presentation device for mathematical education includes: a probability demonstration apparatus for mathematical education, comprising: the novel box comprises a box body and a supporting seat, wherein the supporting seat is fixedly arranged at four corners of the bottom of the box body, a power mechanism is fixedly arranged at one end of the bottom of the box body, a probability demonstration mechanism is fixedly arranged in the box body and is matched with the power mechanism, and a taking mechanism is fixedly arranged on one side of the bottom of the box body.

Preferably, a handle is fixedly arranged in the middle of the top of the box body.

Preferably, an acrylic plate is fixedly mounted on one side of the box body.

Preferably, power unit includes mounting groove, helping hand pole, limiting plate, helping hand spring, controls piece, push rod and experiment ball, the mounting groove has been seted up to bottom half one end, swing joint has the helping hand pole in the mounting groove, one side fixed mounting of helping hand pole has the limiting plate, one side fixed mounting of limiting plate has the helping hand spring, the one end that the limiting plate was kept away from to the helping hand spring and the lateral wall fixed connection of mounting groove, the lateral wall that the box was passed to the one end of helping hand pole and control piece fixed connection, one side of helping hand pole is equipped with the push rod, the experiment ball has been placed at the top of push rod.

Preferably, one end of each of the boosting rod and the push rod is designed to be an inclined plane.

Preferably, probability demonstration mechanism includes the motion groove, leads to groove, activity room, gag lever post and spacing groove, the motion groove has been seted up to the inside of box and the top that is located helping hand pole, and the motion groove mutually supports with push rod and laboratory ball respectively, the motion groove is kept away from the one end bottom of push rod and has been seted up logical groove, lead to the one end that the motion groove was kept away from and has been seted up the activity room, the inside equidistance fixed mounting of activity room has a plurality of gag lever posts, a plurality of spacing grooves have been seted up to the bottom equidistance of activity room.

Preferably, the mechanism of taking includes spout, baffle, cooperation groove and the groove of taking, the spout has been seted up to bottom half one side, the inside sliding connection of spout has the baffle, the cooperation groove has been seted up to the one end of baffle, the groove of taking has been seted up to the bottom of box and the one side that is located and sets up the baffle.

Preferably, the middle part of one side of the box body is inserted with a matching block.

Compared with the prior art, the utility model provides a pair of probability presentation device for mathematical education has following beneficial effect:

the utility model provides a probability presentation device is used in mathematical education:

the box body is mainly used for accommodating all parts inside the box body, so that a teacher can conveniently carry the device, the supporting seat plays a role in supporting the box body, the power mechanism plays a role in driving the experimental ball to move and is a power source for the movement of the experimental ball, the probability demonstration mechanism can demonstrate the probability so as to simplify the understanding of the student to the probability, so that the learning interest of the student is improved, the taking mechanism is installed so that the teacher can conveniently take the experimental ball, the experimental ball is convenient and rapid to use, the experimental ball is beneficial to recycling, the power mechanism is arranged in the probability demonstration device for mathematical teaching, the power spring in the mechanism is a power source in the whole mechanism, the rapid movement of the experimental ball can be realized through the mutual matching of the power assisting rod and the push rod, and the movement grooves, the activity chambers and the limiting rods in the probability demonstration mechanism can provide paths and obstacles for the movement of the experimental ball, the motion route through the experiment ball can have a clear understanding to the probability, then can take the experiment ball through mutually supporting of spout and baffle in the mechanism of taking, mutually supports the recycling that has realized the device with the cooperation piece simultaneously, the great increase student's of existence of this device interest in learning helps improving student's learning efficiency, and the device size is less simultaneously, makes things convenient for the teacher to carry, and the simple operation, and the practicality is stronger.

Drawings

Fig. 1 is one of the overall structural diagrams provided by the present invention;

fig. 2 is a second schematic view of the overall structure provided by the present invention;

fig. 3 is a schematic structural view of the power mechanism provided by the present invention;

fig. 4 is a schematic view of a cross-sectional structure of the probability demonstration mechanism and the box body provided by the present invention;

fig. 5 is a schematic view of the structure of the taking mechanism provided by the present invention.

Reference numbers in the figures: 1. a box body; 2. a supporting seat; 3. a handle; 4. acrylic plates; 5. a power mechanism; 51. mounting grooves; 52. a booster lever; 53. a limiting plate; 54. a power-assisted spring; 55. an operation block; 56. a push rod; 57. an experimental ball; 6. a probability demonstration mechanism; 61. a motion groove; 62. a through groove; 63. an activity room; 64. a limiting rod; 65. a limiting groove; 7. a fetching mechanism; 71. a chute; 72. a baffle plate; 73. a mating groove; 74. taking the groove; 8. and (6) matching the blocks.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is one of the overall structural schematic diagrams provided by the present invention; fig. 2 is a second schematic view of the overall structure provided by the present invention; fig. 3 is a schematic structural view of the power mechanism provided by the present invention; fig. 4 is a schematic view of a cross-sectional structure of the probability demonstration mechanism and the box body provided by the present invention; fig. 5 is a schematic view of the structure of the taking mechanism provided by the present invention. A probability demonstration device for mathematical education includes: the device comprises a supporting seat 2 of the box body 1, a power mechanism 5, a probability demonstration mechanism 6 and a taking mechanism 7.

In the specific implementation process, as shown in fig. 1 and 2, the supporting seat 2 is fixedly installed at four corners of the bottom of the box body 1, the power mechanism 5 is fixedly installed at one end of the bottom of the box body 1, the probability demonstration mechanism 6 is fixedly installed in the box body 1, the probability demonstration mechanism 6 is matched with the power mechanism 5, and the taking mechanism 7 is fixedly installed on one side of the bottom of the box body 1.

It should be noted that, box 1's existence is mainly in order to accomodate its inside all parts, so that the teacher carries the device, supporting seat 2 has then played the effect of supporting box 1, power unit 5's existence has played the effect that drives experiment ball 57 and move, be the power source of experiment ball 57 motion, probability demonstration mechanism 6's existence can demonstrate the probability, so that simplify the understanding of student to the probability, thereby improve student's interest in learning, the installation of mechanism 7 of taking is then for the convenience teacher to take experiment ball 57, it is very convenient, help the recycling of experiment ball 57.

Referring to fig. 1 and 2, a handle 3 is fixedly installed at the middle of the top of the box body 1.

It should be noted that the handle 3 is installed to facilitate moving the device, and has a small size, a light weight and portability.

Referring to fig. 1, an acrylic plate 4 is fixedly installed at one side of the case 1.

The acrylic plate 4 enables teachers and students to watch the device during operation, is not as fragile as glass, is light in weight, reduces the overall weight of the device, and has good use value.

Referring to fig. 3, power unit 5 includes mounting groove 51, helping hand pole 52, limiting plate 53, helping hand spring 54, manipulates piece 55, push rod 56 and experiment ball 57, mounting groove 51 has been seted up to 1 bottom one end of box, swing joint has helping hand pole 52 in the mounting groove 51, one side fixed mounting of helping hand pole 52 has limiting plate 53, one side fixed mounting of limiting plate 53 has helping hand spring 54, helping hand spring 54 keeps away from the one end of limiting plate 53 and the lateral wall fixed connection of mounting groove 51, the lateral wall that box 1 was passed to helping hand pole 52 one end and manipulates piece 55 fixed connection, one side of helping hand pole 52 is equipped with push rod 56, experiment ball 57 has been placed at the top of push rod 56.

The manipulation block 55 is manually held and pulled outwards, then the manipulation block 55 drives the power-assisted rod 52 to move together, the power-assisted rod 52 drives the limit plate 53 to move while moving, the limit plate 53 extrudes the power-assisted spring 54, when the power-assisted rod 52 moves to the limit, the push rod 56 carries the experimental ball 57 to descend, the bottom end inclined surface of the push rod 56 directly contacts with the inclined surface end of the power-assisted rod 52, then the manipulation block 55 is released, the power-assisted spring 54 drives the limit plate 53 and the power-assisted rod 52 to reset under the condition of no stress, the power-assisted rod 52 extrudes the push rod 56, and the push rod 56 drives the experimental ball 57 to quickly ascend under the condition of stress.

It should be noted that the installation groove 51 is provided to facilitate installation of the rest components in the mechanism, the assistance rod 52 functions to drive the push rod 56 to move rapidly, thereby realizing the rapid movement of the experimental ball 57, the limiting plate 53 is installed to cooperate with the power spring 54, so as to drive the power rod 52 to move, the assistance spring 54 is mainly used to drive the limit plate 53 to move, and apply pressure to the limit plate 53, thereby driving the power-assisted rod 52 to move rapidly, the installation of the operation block 55 is convenient for operating the power-assisted rod 52, which is more convenient, the existence of the push rod 56 mainly transfers the self-applied force to the experimental ball 57, thereby drive experiment ball 57 and move, and the existence of experiment ball 57 then can provide comparatively audio-visual probability demonstration for the student to the student can be better knows the probability.

Referring to fig. 3, one end of the boosting rod 52 and one end of the push rod 56 are both designed to be inclined.

It should be noted that, the design of inclined plane makes push rod 56 can move under helping hand pole 52's effect to drive experiment ball 57 and move, can infinitely cycle and use, and can not appear any accident, the practicality is higher.

Referring to fig. 4, probability demonstration mechanism 6 includes motion groove 61, leads to groove 62, activity room 63, gag lever post 64 and spacing groove 65, motion groove 61 has been seted up to the inside of box 1 and the top that is located helping hand pole 52, and motion groove 61 mutually supports with push rod 56 and laboratory ball 57 respectively, motion groove 61 keeps away from the one end bottom of push rod 56 and has seted up logical groove 62, the one end that leads to groove 62 and keep away from motion groove 61 has seted up activity room 63, the inside equidistance fixed mounting of activity room 63 has a plurality of gag lever posts 64, a plurality of spacing grooves 65 have been seted up to the bottom equidistance of activity room 63.

Can directly move in motion groove 61 when experimental ball 57 receives external force to carry out the circle in the other end of motion groove 61, can provide logical groove 62 and directly fall into activity room 63 after the external force of experimental ball 57 consumes completely, and contact with the gag lever post 64 of installation in the activity room 63, then fall into spacing inslot 65 again.

It should be noted that the movement groove 61 is provided for facilitating movement of the test ball 57 and providing a track for movement of the test ball 57, the through groove 62 is provided for facilitating flow of the test ball 57 from the movement groove 61 to the activity room 63, the activity room 63 is provided for facilitating free movement of the test ball 57, the limiting rod 64 is installed for contacting the test ball 57 and disturbing the movement track of the test ball 57, so that a teacher can explain probabilities of students and facilitate absorption of probability knowledge by students, the limiting groove 65 is a place where the test ball 57 finally drops, and the limiting effect on the test ball 57 is achieved, the probability table can be presented to the students through matching of the limiting rod 64 and the limiting groove 65, and cognition of the students on the probabilities is facilitated.

Referring to fig. 5, the taking mechanism 7 includes a sliding groove 71, a baffle plate 72, a matching groove 73 and a taking groove 74, the sliding groove 71 is formed in one side of the bottom of the box body 1, the baffle plate 72 is slidably connected to the inside of the sliding groove 71, the matching groove 73 is formed in one end of the baffle plate 72, and the taking groove 74 is formed in one side, located at the position where the baffle plate 72 is formed, of the bottom of the box body 1.

The fitting groove 73 is manually held, the baffle plate 72 is pulled to slide in the sliding groove 71, when the baffle plate 72 slides to one end of the sliding groove 71, the operation is stopped, then the hand extends into the box body 1 from the taking groove 74, and then the experimental ball 57 is taken.

It should be noted that the slide groove 71 is opened to facilitate the sliding of the shutter 72, the shutter 72 is present to facilitate the teacher taking the test ball 57, and the matching groove 73 is opened to facilitate the teacher pulling the shutter 72, and the presence of the taking groove 74 provides a channel for the teacher taking the test ball 57.

Referring to fig. 1, a matching block 8 is inserted into the middle of one side of the box body 1.

It should be noted that the fitting block 8 is present to facilitate the teacher to put the experimental ball 57 onto the push rod 56, so as to realize the multiple recycling of the experimental ball 57.

The working principle is as follows: firstly, the operation block 55 in the power mechanism 5 is manually held and pulled outwards, then the operation block 55 drives the assistance rod 52 to move together, while the assistance rod 52 moves, the limit plate 53 is driven to move, the limit plate 53 extrudes the assistance spring 54, when the assistance rod 52 moves to the limit, the push rod 56 carries the experimental ball 57 to descend, while the bottom end inclined plane of the push rod 56 directly contacts with the inclined plane end of the assistance rod 52, then the operation block 55 is released, while the assistance spring 54 drives the limit plate 53 and the assistance rod 52 to reset under the unstressed condition, while the assistance rod 52 extrudes the push rod 56, while the push rod 56 drives the experimental ball 57 to rapidly ascend under the stressed condition, and when the experimental ball 57 is subjected to the external force, the experimental ball 57 directly moves in the motion groove 61 in the probability demonstration mechanism 6 and rotates in the other end of the motion groove 61, when the external force of the experimental ball 57 is completely consumed, the through groove 62 is provided to directly fall into the movable chamber 63, and the experimental ball is contacted with the limiting rod 64 installed in the movable chamber 63 and then falls into the limiting groove 65, at the moment, a teacher can manually hold the matching groove 73 in the taking mechanism 7 and pull the baffle plate 72 to slide in the sliding groove 71, when the baffle plate 72 slides to one end of the sliding groove 71, the operation is stopped, then the hand stretches into the box body 1 from the taking groove 74, then the experimental ball 57 is taken, then the matching block 8 is manually pulled open, the experimental ball 57 is directly placed on the push rod 56, and then the experimental ball can be recycled, at the moment, a student can visually see the motion track of the experimental ball 57 through the acrylic plate 4, so that the student can have a deeper understanding on the probability, and meanwhile, the interest of the student is increased.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A probability demonstration apparatus for mathematical education, comprising: box (1) and supporting seat (2), the bottom four corners fixed mounting of box (1) has supporting seat (2), its characterized in that: box (1) bottom one end fixed mounting has power unit (5), the inside fixed mounting of box (1) has probability demonstration mechanism (6), and probability demonstration mechanism (6) mutually support with power unit (5), box (1) bottom one side fixed mounting has the mechanism of taking (7).

2. The probability demonstration device for mathematics teaching as claimed in claim 1, wherein a handle (3) is fixedly installed in the middle of the top of the box body (1).

3. The probability demonstration device for mathematical education as claimed in claim 1 wherein an acrylic plate (4) is fixedly installed on one side of the box body (1).

4. The probability demonstration device for mathematical education as claimed in claim 1, wherein the power mechanism (5) comprises a mounting groove (51), a power-assisted rod (52), a limiting plate (53), a power-assisted spring (54), a manipulation block (55), a push rod (56) and an experimental ball (57), the mounting groove (51) is formed in one end of the bottom of the box body (1), the power-assisted rod (52) is movably connected in the mounting groove (51), the limiting plate (53) is fixedly mounted on one side of the power-assisted rod (52), the power-assisted spring (54) is fixedly mounted on one side of the limiting plate (53), one end of the power-assisted spring (54) far away from the limiting plate (53) is fixedly connected with the side wall of the mounting groove (51), one end of the power-assisted rod (52) penetrates through the side wall of the box body (1) and is fixedly connected with the manipulation block (55), the push rod (56) is arranged on one side of the power-assisted rod (52), an experimental ball (57) is placed at the top of the push rod (56).

5. The probability demonstration device for mathematical education as claimed in claim 4, wherein one end of the boosting rod (52) and one end of the push rod (56) are both designed to be inclined.

6. The probability demonstration device for mathematical education as claimed in claim 1, wherein the probability demonstration mechanism (6) comprises a motion groove (61), a through groove (62), a movable chamber (63), a limiting rod (64) and a limiting groove (65), the motion groove (61) is formed in the box body (1) and located above the boosting rod (52), the motion groove (61) is matched with the push rod (56) and the experimental ball (57) respectively, the through groove (62) is formed in the bottom of one end, away from the push rod (56), of the motion groove (61), the movable chamber (63) is formed in one end, away from the motion groove (61), of the through groove (62), the limiting rods (64) are fixedly mounted in the movable chamber (63) at equal intervals, and the limiting grooves (65) are formed in the bottom of the movable chamber (63) at equal intervals.

7. The probability demonstration device for mathematical education as claimed in claim 1, wherein the taking mechanism (7) comprises a sliding groove (71), a baffle (72), a matching groove (73) and a taking groove (74), the sliding groove (71) is formed in one side of the bottom of the box body (1), the baffle (72) is connected to the inside of the sliding groove (71) in a sliding mode, the matching groove (73) is formed in one end of the baffle (72), and the taking groove (74) is formed in the bottom of the box body (1) and located on one side where the baffle (72) is formed.

8. The probability demonstration device for mathematical education as claimed in claim 1 wherein the middle of one side of the box body (1) is inserted with a matching block (8).