CN213042495U

CN213042495U - Primary school's mathematical computation teaching presentation device

Info

Publication number: CN213042495U
Application number: CN202021781913.9U
Authority: CN
Inventors: 毕倩雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-23
Anticipated expiration: 2030-08-24

Abstract

The utility model provides a primary school's mathematical computation teaching presentation device relates to panel technical field, including show board and springing device, the fixed surface of show board is connected with the shadoof, the surface of show board is equipped with springing device, springing device is including eighteen rectangular channel, eighteen the rectangular channel evenly offers the surface of showing the board, the inner wall of rectangular channel rotates and is connected with the commentaries on classics board, the fixed surface who keeps away from the rectangular channel of commentaries on classics board is connected with the cardboard, the cardboard is the recess column structure, the one side that the commentaries on classics board was kept away from to the rectangular channel has seted up the quad slit, the diapire fixedly connected with first spring of quad slit, the other end and the commentaries on classics board fixed connection of first spring. The utility model discloses, solved when using the panel to show mathematical algorithm to primary school grade one student, give lessons to the student with the method of vertical column usually, so not only the student is unfavorable for understanding, and primary school student's rigid contact adds the problem that the algorithm is unfavorable for student's quick calculation moreover.

Description

Primary school's mathematical computation teaching presentation device

Technical Field

The utility model relates to an panel technical field especially relates to a primary school's mathematical computation teaching presentation device.

Background

The display board is a plate-shaped medium used for releasing and displaying information, and is made of paper, new materials, metal materials and the like, the picture of the display board is made of a back adhesive material, and a matte film or a bright film can be selected according to the brightness of a use site and personal preference.

The display board is usually a tool used by teachers to show students the learning content to give lessons to students in teaching, and when the display board is used to show mathematical algorithms to primary school grade students, the students are generally given lessons by a column-vertical method, so that not only are the students not beneficial to understanding, but also the primary school students just touch the addition and subtraction algorithm to be not beneficial to quick calculation of the students.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a teaching demonstration device for primary school mathematical calculation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a primary school's mathematical computation presentation device, includes show board and elastic device, the fixed surface of show board is connected with the shadoof, the surface of show board is equipped with elastic device, elastic device is including eighteen rectangular channel, eighteen the surface of show board is evenly seted up in the rectangular channel, the inner wall of rectangular channel rotates and is connected with the commentaries on classics board, the fixed surface who keeps away from the rectangular channel of commentaries on classics board is connected with the cardboard, the cardboard is recess column structure, the one side that the commentaries on classics board was kept away from to the rectangular channel has seted up the quad slit, the first spring of diapire fixedly connected with of quad slit, the other end and the commentaries on classics board fixed connection of first spring.

Preferably, the inner wall of the rectangular groove is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected with a fixed rod, the surface of the fixed rod is connected with a sliding plate in a sliding manner, the size of the sliding plate is matched with that of the rectangular groove, the surface of the fixed rod is sleeved with a second spring, and the second spring is fixedly connected between the sliding plate and the sliding groove.

Preferably, one side of the sliding plate close to the first spring is fixedly connected with two clamping blocks, and the two clamping blocks are of triangular prism structures.

Preferably, the surface of show board is equipped with display device, display device is including two fixed blocks, two fixed block fixed connection is in the surface of show board, the draw-in groove has been seted up to the inside of fixed block, and draw-in groove inner wall sliding connection has the gag lever post, the fixed surface of gag lever post is connected with the stopper, and the surface fixed connection that the gag lever post was kept away from to the stopper is connected with the base, the base is with the help of gag lever post and fixed block sliding connection, spacing hole has been seted up on the surface of base.

Preferably, a screw rod is inserted into one side of the display board corresponding to the limiting hole, a rotary drum is fixedly connected to the surface of the screw rod, and the screw rod is connected to the inner wall of the limiting hole in a sliding mode.

Preferably, the fixed surface of base is connected with the string, the one end fixedly connected with couple that the base was kept away from to the string, the fixed surface of show board is connected with the link plate, the hanging hole has been seted up to the inner wall of link plate, the base is colluded in the inner wall of hanging hole with the help of the couple.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, through setting up the springing device, when the teacher needs to show plus-minus method within one hundred to the classmates, the number of the rotating plate on the display board is ten digits, the number below the rotating plate is single digit, firstly, the number in front of plus-minus number is popped out corresponding number from the rectangular groove, the first spring has the function of popping out the rotating plate from the chute, the sliding plate is pulled, the sliding plate extrudes the second spring to slide on the fixed rod, the second spring has the function of extruding the sliding plate, the rotating plate has the limiting function, the clamping block on the sliding plate is convenient for the rotating plate to be pressed into the rectangular groove, the clamping plate has the function of preventing the teacher from sliding to cause the rotating plate to scrape one hand, then pop out or press in the adding number or the subtracting number for relative use from the rotating plate, the rotating plate popped out on the display board is the arithmetic result obtained, the problem of giving lessons to students by the method of column vertical type is solved, thus, not only, and the problem that the primary school students just touch the addition and subtraction algorithm to be not beneficial to the quick calculation of the students.

2. The utility model discloses in, through setting up display device, because gag lever post sliding connection is in the inner wall of fixed block, when the base slides to the show board bottom, rotate the rotary drum and insert spacing downthehole portion with the screw rod, accomplish the fixed of base, put the teacher's of being convenient for show on the lectern with the base, it is not hard up the screw rod when the base need be packed up to class down, slide the base to show board back, the couple that the string was connected on the show board colludes in the hanging hole of link plate, accomplish accomodating of base, the mr of being convenient for has not only reached shows to the classmate, and the problem that the mr of still being convenient for carried the show board when giving a lesson.

Drawings

Fig. 1 is a schematic perspective view of a primary school mathematical computation teaching demonstration apparatus according to the present invention;

FIG. 2 is a schematic side view of the primary school mathematical computation teaching demonstration apparatus shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the display device of FIG. 1 in a teaching demonstration device for primary school mathematical calculations;

fig. 4 is the utility model provides a structural sketch of a department of fig. 1 in the primary school's mathematical computation teaching presentation device.

Illustration of the drawings: 1. a display board; 2. lifting a rod; 3. a springing device; 31. a rectangular groove; 32. clamping a plate; 33. rotating the plate; 34. a first spring; 35. a clamping block; 36. a slide plate; 37. a second spring; 38. fixing the rod; 4. a display device; 41. a base; 42. a fixed block; 43. a screw; 44. a rotating drum; 45. a string; 46. hooking; 47. hanging the plate; 48. a limiting hole; 49. a limiting rod.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-4, the utility model provides a primary school's mathematical computation teaching presentation device, including show board 1, elastic device 3 and display device 4, the fixed surface of show board 1 is connected with shadoof 2, and the surface of show board 1 is equipped with elastic device 3, and the surface of show board 1 is equipped with display device 4.

The specific arrangement and function of the springing device 3 and the display device 4 will be described in detail below.

As shown in fig. 1 and 4, the springing device 3 includes eighteen rectangular grooves 31, the eighteen rectangular grooves 31 are uniformly opened on the surface of the display board 1, the inner wall of the rectangular groove 31 is rotatably connected with a rotating plate 33, the surface of the rotating plate 33 far away from the rectangular groove 31 is fixedly connected with a snap-gauge 32, the snap-gauge 32 is a groove-shaped structure, one side of the rectangular groove 31 far away from the rotating plate 33 is provided with a square hole, the bottom wall of the square hole is fixedly connected with a first spring 34, the other end of the first spring 34 is fixedly connected with the rotating plate 33, the inner wall of the rectangular groove 31 is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected with a fixing rod 38, the surface of the fixing rod 38 is slidably connected with a sliding plate 36, the size of the sliding plate 36 is matched with the size of the rectangular groove 31, the surface of the fixing rod 38 is sleeved with a second spring 37, the second spring, the two blocks 35 are triangular prism structures.

The whole springing device 3 achieves the effect that by arranging the springing device 3, when a teacher needs to show addition and subtraction within one hundred to the same school, the numbers in front of addition and subtraction are popped out of the rectangular groove 31 by taking the number of the rotating plates 33 on the display board 1 as tens digits and the numbers in the lower row of the rotating plates 33 as units digits, the first spring 34 has the function of popping out the rotating plates 33 from the sliding groove, the sliding plate 36 is pulled, the sliding plate 36 extrudes the second spring 37 to slide on the fixed rod 38, the second spring 37 has the function of extruding the sliding plate 36 and has the limiting function on the rotating plates 33, the clamping block 35 on the sliding plate 36 is convenient for the rotating plates 33 to be pressed into the rectangular groove 31, the clamping plate 32 has the function of preventing the teacher from sliding to cause the rotating plates 33 to scrape hands, then the corresponding addends or subtractions are popped out or pressed into the corresponding addends from the rotating plates 33, and the rotating plates 33 popped or subtracted ends from the rotating plates 33 popped out of the display, the problem that students are given lessons by a vertical method is solved, so that not only are the students not beneficial to understanding, but also the primary school students are not beneficial to quick calculation of the students by just contacting an addition and subtraction algorithm.

As shown in fig. 1 and 2, the display device 4 includes two fixed blocks 42, two fixed blocks 42 fixed connection are on the surface of the display board 1, the draw-in groove has been seted up to the inside of fixed block 42, draw-in groove inner wall sliding connection has gag lever post 49, the fixed surface of gag lever post 49 is connected with the stopper, the fixed surface that gag lever post 49 was kept away from to the stopper is connected with base 41, base 41 is with the help of gag lever post 48 and fixed block 42 sliding connection, spacing hole 48 has been seted up on the surface of base 41, the show board 1 corresponds one side of spacing hole 49 and is inserted and be equipped with screw rod 43, the fixed surface of screw rod 43 is connected with rotary drum 44, screw rod 43 sliding connection is in the inner wall of spacing hole 48, the fixed surface of base 41 is connected with string 45, the one end fixedly connected with couple 46 that base 41 was kept away from to string 45, the fixed surface of show board 1 is connected.

The effect that its whole display device 4 reached does, through setting up display device 4, because gag lever post 49 sliding connection is in the inner wall of fixed block 42, when base 41 slides to show board 1 bottom, it inserts inside spacing hole 48 to rotate rotary drum 44 with screw rod 43, accomplish the fixed of base 41, put base 41 the teacher's of being convenient for show on the lectern, not hard up screw rod 43 when base 41 need be packed up to next class, slide base 41 to the 1 back of show board, couple 46 that last string 45 was connected with show board 1 colludes in the hanging hole of link plate 47, accomplish taking in of base 41, not only reached the mr of being convenient for to show to classmate, and the mr of still being convenient for carries out the problem that carries to show board 1 when giving lessons.

The integral working principle is that by arranging the springing device 3, when a teacher needs to show addition and subtraction within one hundred to the same school, the number of the rotating plates 33 on the display board 1 is ten digits, the number of the lower row of the rotating plates 33 is one digit, the number in front of the addition and subtraction is firstly popped out of the rectangular groove 31 to form the corresponding number, the first spring 34 has the function of popping the rotating plates 33 out of the sliding groove, the sliding plate 36 is pulled, the sliding plate 36 extrudes the second spring 37 to slide on the fixed rod 38, the second spring 37 has the extruding sliding plate 36 and has the limiting function on the rotating plates 33, the clamping block 35 on the sliding plate 36 is convenient for the rotating plates 33 to be pressed into the rectangular groove 31, the clamping plate 32 has the function of preventing the teacher from sliding to cause the rotating plates 33 to scrape hands, then the corresponding addend or subtracted end is popped out or pressed into the rotating plates 33 from the rotating plates 33, the rotating plates 33 popped out of the display board 1 are the arithmetic result and by arranging the display device 4, because gag lever post 49 sliding connection is in the inner wall of fixed block 42, when base 41 slides to show board 1 bottom, it inserts spacing hole 48 inside with screw rod 43 to rotate rotary drum 44, accomplish base 41's fixed, put base 41 on the lectern the teacher's of being convenient for show, loose screw rod 43 when base 41 need be packed up to class down, slide base 41 to show board 1 back, couple 46 that thin rope 45 connects on will showing board 1 colludes in the hanging hole of link plate 47, it combines together through show board 1 between accomodating of base 41 to accomplish.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a primary school's mathematical computation teaching presentation device, includes show board (1) and bouncer (3), its characterized in that: the fixed surface of show board (1) is connected with shadoof (2), the surface of show board (1) is equipped with springing device (3), springing device (3) are including eighteen rectangular channel (31), eighteen rectangular channel (31) are evenly seted up in the surface of show board (1), the inner wall of rectangular channel (31) rotates and is connected with commentaries on classics board (33), the fixed surface who keeps away from rectangular channel (31) of commentaries on classics board (33) is connected with cardboard (32), cardboard (32) are the recess column structure, the quad slit has been seted up to one side that commentaries on classics board (33) was kept away from in rectangular channel (31), the diapire fixedly connected with first spring (34) of quad slit, the other end and commentaries on classics board (33) fixed connection of first spring (34).

2. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the inner wall of rectangular channel (31) is seted up the spout, and the inner wall fixedly connected with dead lever (38) of spout, the surperficial sliding connection of dead lever (38) has slide (36), the size of slide (36) and the size looks adaptation of rectangular channel (31), the surface cover of dead lever (38) has second spring (37), second spring (37) fixed connection is between slide (36) and spout.

3. An elementary school mathematical calculation teaching demonstration device according to claim 2, characterized in that: one side of the sliding plate (36) close to the first spring (34) is fixedly connected with two clamping blocks (35), and the two clamping blocks (35) are of triangular prism structures.

4. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the surface of show board (1) is equipped with display device (4), display device (4) are including two fixed blocks (42), two fixed block (42) fixed connection is in the surface of show board (1), the draw-in groove has been seted up to the inside of fixed block (42), and draw-in groove inner wall sliding connection has gag lever post (49), the fixed surface of gag lever post (49) is connected with the stopper, and the stopper is kept away from fixed surface of gag lever post (49) and is connected with base (41), base (41) are with the help of gag lever post (48) and fixed block (42) sliding connection, spacing hole (48) have been seted up on the surface of base (41).

5. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the display board is characterized in that a screw rod (43) is inserted into one side, corresponding to the limiting hole (48), of the display board (1), a rotary drum (44) is fixedly connected to the surface of the screw rod (43), and the screw rod (43) is connected to the inner wall of the limiting hole (48) in a sliding mode.

6. An elementary school mathematical calculation teaching demonstration device according to claim 4, characterised in that: the fixed surface of base (41) is connected with string (45), one end fixedly connected with couple (46) of base (41) are kept away from to string (45), the fixed surface of show board (1) is connected with link plate (47), the hanging hole has been seted up to the inner wall of link plate (47), base (41) collude in the inner wall of hanging hole with the help of couple (46).