CN210955670U

CN210955670U - Primary school mathematics addition and subtraction learning device

Info

Publication number: CN210955670U
Application number: CN201922399727.2U
Authority: CN
Inventors: 杜青彦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-07
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses an addition and subtraction method learner of primary school's mathematics, including storing the box, the fixed inlaying of inside wall of storing the box has symmetrical first bearing, two the inner circle of first bearing is connected with the pivot jointly, the last fixed surface of pivot is connected with the support column, the opening has been seted up to the upper surface of storing the box, the top of support column runs through the opening and extends to the top of storing the box, the interior diapire of storing the box has hydraulic telescoping rod through the fixed hinge joint of round pin axle, hydraulic telescoping rod's output is through the fixed articulated right flank of pin and support column, the first horizontal pole of right flank fixedly connected with of support column. This primary school's mathematics plus-minus method learning through support column and hydraulic telescoping rod are articulated, utilize the cooperation of pivot and first bearing, can make the inside of storage box put into by the count frame, through the cooperation of apron and handle, can cover and store the box to conveniently carry, the primary school plus-minus method teaching of being convenient for is used.

Description

Primary school mathematics addition and subtraction learning device

Technical Field

The utility model belongs to the teaching aid field especially relates to a primary school's mathematics addition and subtraction learning.

Background

The teaching aid is a general name of various appliances used by students for enabling the students to visually and vividly understand teaching contents and appliances used by teachers during giving lessons, is called teaching aid for short, can improve learning interest of the students, enriches perceptual knowledge, helps to form clear concepts and develop observation ability and thinking ability of the students, and is generally divided into three types of common teaching aids, special teaching aids and infant teaching aids; the teacher generally adopts the mode of reading numbers by hanging pictures or drawing symbols such as circles, triangles and the like on a blackboard, and the existing learning device is not visual in demonstration and inconvenient to carry and use, so that the primary school mathematics addition and subtraction learning device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a, it is directly perceived inadequately to aim at solving above-mentioned existing learner demonstration that exists, carries awkward problem.

The utility model is realized in such a way, a primary school mathematics plus-minus method learning device, which comprises a storage box, wherein the inner side wall of the storage box is fixedly embedded with symmetrical first bearings, the inner rings of the first bearings are connected with a rotating shaft together, the upper surface of the rotating shaft is fixedly connected with a supporting column, the upper surface of the storage box is provided with an opening, the top end of the supporting column penetrates through the opening and extends to the upper part of the storage box, the inner bottom wall of the storage box is fixedly articulated with a hydraulic telescopic rod through a pin shaft, the output end of the hydraulic telescopic rod is fixedly articulated with the right side surface of the supporting column through a pin, the right side surface of the supporting column is fixedly connected with a first cross rod, the right side surface of the supporting column is fixedly connected with a second cross rod, the outer surface of the first cross rod and the outer surface of the second cross rod are both sheathed with a plurality of counting, the inner ring of the second bearing is fixedly connected with a rotating rod, and a symbol plate is sleeved on the outer surface of the rotating rod.

Preferably, the bottom surface of the storage box is fixedly connected with symmetrical cushion blocks, and the bottom surface of each cushion block is fixedly connected with a rubber pad.

Preferably, the front face of the storage box is fixedly connected with a lamp strip, and the front face of the storage box is fixedly connected with a switch.

Preferably, the front of the storage box is fixedly connected with a USB charging port, and the inner bottom wall of the storage box is fixedly connected with a storage battery.

Preferably, a protecting sleeve is sleeved at the right end of the rotating rod, and anti-skid grains are arranged on the outer surface of the protecting sleeve.

Preferably, the upper surface of the storage box is fixedly hinged with a cover plate through a pin shaft, and the upper surface of the cover plate is fixedly connected with a handle.

Compared with the prior art, the beneficial effects of the utility model are that: the addition and subtraction learning device is provided with the storage box, can be convenient for storing the counting ring and the learning mechanism, can play a role of supporting and skid resistance by arranging the cushion block and the rubber pad at the bottom of the storage box, avoids the sliding of the learning device on a desktop, can carry out addition and subtraction counting by arranging the first cross rod and the second cross rod on the supporting column and utilizing the matching of the counting ring, can rotate by matching the rotating rod and the second bearing with the symbol plate, can adjust the addition and subtraction symbols, is convenient for vivid display addition and subtraction operation, is hinged with the hydraulic telescopic rod by the supporting column, can enable the counting frame to be placed in the storage box by utilizing the matching of the rotating shaft and the first bearing, can cover the storage box by matching of the cover plate and the handle, thereby being convenient to carry, being convenient for teaching and use, and solving the problems of insufficient intuition and inconvenient carrying and use of the existing learning device, through battery and switch cooperation lamp area control illumination, can improve student's attention.

Drawings

Fig. 1 is a cross-sectional view of a front view of a support column of the present invention;

FIG. 2 is a cross-sectional view of the front view of the storage case of the present invention;

fig. 3 is a side view of the storage case of the present invention;

fig. 4 is a top view of the storage case of the present invention.

In the figure: 1. a storage box; 2. a switch; 3. a support pillar; 4. a second bearing; 5. a rotating rod; 6. a counting ring; 7. a first cross bar; 8. a sign board; 9. a protective sleeve; 10. a second cross bar; 11. a light strip; 12. a USB charging port; 13. cushion blocks; 14. a port; 15. a rotating shaft; 16. a hydraulic telescopic rod; 17. a storage battery; 18. a first bearing; 19. a handle; 20. and (7) a cover plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, a primary school mathematics addition and subtraction learning device comprises a storage box 1, wherein symmetrical first bearings 18 are fixedly inlaid in the inner side wall of the storage box 1, the inner rings of the two first bearings 18 are commonly connected with a rotating shaft 15, the upper surface of the rotating shaft 15 is fixedly connected with a support column 3, the upper surface of the storage box 1 is provided with a through hole 14, the top end of the support column 3 penetrates through the through hole 14 and extends to the upper part of the storage box 1, the inner bottom wall of the storage box 1 is fixedly hinged with a hydraulic telescopic rod 16 through a pin shaft, the output end of the hydraulic telescopic rod 16 is fixedly hinged with the right side surface of the support column 3 through a pin, the right side surface of the support column 3 is fixedly connected with a first cross rod 7, the right side surface of the support column 3 is fixedly connected with a second cross rod 10, the outer surface of the first cross rod 7 and the outer surface of the second cross rod, the inner ring of the second bearing 4 is fixedly connected with a rotating rod 5, and the outer surface of the rotating rod 5 is sleeved with a symbol plate 8.

The utility model discloses in, store the symmetrical cushion 13 of bottom surface fixedly connected with of box 1, the equal fixedly connected with rubber pad in bottom surface of every cushion 13 can be convenient for support and store box 1, plays skid-proof effect, stores the positive fixedly connected with lamp area 11 of box 1, stores the positive fixedly connected with switch 2 of box 1, can be convenient for control lamp area 11, improves student's attention.

The positive fixedly connected with USB of storing box 1 charges mouthful 12, the interior diapire fixedly connected with battery 17 of storing box 1, can realize charging of battery 17, be convenient for repetitious usage, the right-hand member cover of bull stick 5 is equipped with lag 9, anti-skidding line has been seted up to the surface of lag 9, can conveniently rotate bull stick 5, the upper surface of storing box 1 articulates through the round pin hub fixation has apron 20, the last fixed surface of apron 20 is connected with handle 19, can cover and store box 1, avoid count ring 6 to lose.

The utility model discloses a theory of operation is: during the use, open apron 20 through handle 19, pulling support column 3, support column 3 drives hydraulic telescoping rod 16 and rotates under the cooperation of pivot 15 and first bearing 18, thereby make support column 3 erect, through pressing switch 2, can open lamp area 11, through setting up count ring 6 on first horizontal pole 7 as the decrement, set up count ring 6 as the decrement on second horizontal pole 10, through rotating bull stick 5, bull stick 5 drives sign board 8 and adjusts the plus-minus sign, be convenient for teach the operation.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a primary school's mathematics addition subtraction learning, includes storage box (1), its characterized in that: the inner side wall of the storage box (1) is fixedly inlaid with symmetrical first bearings (18), the inner rings of the two first bearings (18) are connected with a rotating shaft (15) together, the upper surface of the rotating shaft (15) is fixedly connected with a supporting column (3), a through opening (14) is formed in the upper surface of the storage box (1), the top end of the supporting column (3) penetrates through the through opening (14) and extends to the upper side of the storage box (1), the inner bottom wall of the storage box (1) is fixedly hinged with a hydraulic telescopic rod (16) through a pin shaft, the output end of the hydraulic telescopic rod (16) is fixedly hinged with the right side face of the supporting column (3) through a pin, the right side face of the supporting column (3) is fixedly connected with a first transverse rod (7), the right side face of the supporting column (3) is fixedly connected with a second transverse rod (10), and the outer surface of the first transverse rod (7) and the outer surface of the second transverse rod, the right flank of support column (3) is fixed to be inlayed and is had second bearing (4), the inner circle fixedly connected with bull stick (5) of second bearing (4), the surface cover of bull stick (5) is equipped with symbol board (8).

2. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the bottom surface of the storage box (1) is fixedly connected with symmetrical cushion blocks (13), and the bottom surface of each cushion block (13) is fixedly connected with a rubber pad.

3. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the LED lamp is characterized in that a lamp strip (11) is fixedly connected to the front of the storage box (1), and a switch (2) is fixedly connected to the front of the storage box (1).

4. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the USB charging port (12) is fixedly connected to the front face of the storage box (1), and the storage battery (17) is fixedly connected to the inner bottom wall of the storage box (1).

5. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the right end cover of bull stick (5) is equipped with lag (9), the surface of lag (9) is seted up anti-skidding line.

6. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the upper surface of the storage box (1) is fixedly hinged with a cover plate (20) through a pin shaft, and the upper surface of the cover plate (20) is fixedly connected with a handle (19).