CN214955533U - Addition and subtraction calculation device for primary school mathematics teaching - Google Patents
Addition and subtraction calculation device for primary school mathematics teaching Download PDFInfo
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- CN214955533U CN214955533U CN202120392977.8U CN202120392977U CN214955533U CN 214955533 U CN214955533 U CN 214955533U CN 202120392977 U CN202120392977 U CN 202120392977U CN 214955533 U CN214955533 U CN 214955533U
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Abstract
The application discloses addition and subtraction calculation device for primary school's mathematical education, including support column, fixed curb plate, demonstration structure, spacing fixed knot construct and bearing structure, the both sides department of support column all fixedly connected with fixed curb plate, the arc wall department of support column installs the demonstration structure, the demonstration structure includes swivel becket, handle bar, connecting rod, bright lamp and housing. This device is rational in infrastructure, high durability and convenient use, this device is applicable to the plus-minus algorithm of the lower grade of the small school and uses, the number demonstration of adding the minus algorithm is carried out through the demonstration structure, it is interesting better, the teaching effect is better, this device has spacing fixed knot structure, can be comparatively convenient carry out the dismouting to the housing through spacing fixed knot structure, the housing of other shapes of change that can be comparatively convenient, after changing the housing of other different shapes, make interesting further enhancement, this device has bearing structure, can highly carry out comparatively convenient adjustment to this device through bearing structure.
Description
Technical Field
The application relates to an addition and subtraction calculation device, in particular to an addition and subtraction calculation device for primary school mathematics teaching.
Background
Primary school mathematics teaches children's knowledge about numbers, four arithmetic operations, graphic and length calculation formulas and unit conversion of a series of knowledge through teaching materials, and lays a good mathematical foundation for junior high school and daily life calculation. The Netherlands educator Friedenmol believes that: "mathematics is derived from reality, must also be rooted in reality, and is applied to reality. "indeed, modern mathematics requires us to observe the world with the eye of mathematics, and to elucidate the world with mathematical language.
The addition and subtraction operation of primary school mathematics needs to use an addition and subtraction operation device when teaching, and the traditional addition and subtraction operation device has low interest, poor operation teaching effect and low interest, so that the learning interest of primary school students is reduced easily. Therefore, an addition and subtraction algorithm device for primary school mathematics teaching is provided for solving the problems.
Disclosure of Invention
An addition and subtraction calculation device for primary school mathematics teaching comprises a support column, a fixed side plate, a demonstration structure, a limiting fixed structure and a support structure;
the demonstration structure comprises a rotating ring, a handle rod, a connecting rod, a bright lamp and a housing, wherein the rotating ring is rotationally connected to the arc-shaped wall of the support column in an interference fit manner, the handle rod is fixedly connected to the arc-shaped wall of the rotating ring, the connecting rod is fixedly connected to the arc-shaped wall of the rotating ring, the bright lamp is fixedly connected to one end of the connecting rod, and the housing is slidably sleeved on the arc-shaped wall of the connecting rod;
the connecting rod is provided with a limiting fixing structure, the limiting fixing structure comprises a sliding block, a spring, a fixed rod, a connecting plate and a limiting pin, a sliding groove cavity is formed in the connecting rod, the sliding block is connected in the sliding groove cavity of the connecting rod in a sliding mode, one end of the fixed rod is fixedly connected to the upper surface of the sliding block, the other end of the fixed rod penetrates through the upper wall of the sliding groove cavity of the connecting rod and extends out of the sliding groove cavity, one end of the spring is fixedly connected to the upper surface of the sliding block, the other end of the spring extends to the upper wall of the sliding groove cavity of the connecting rod and is fixedly connected with the upper wall of the sliding groove cavity of the connecting rod, the connecting plate is fixedly connected to the top end of the fixed rod, and the limiting pin is fixedly connected to the lower surface of the connecting plate;
the utility model discloses a supporting structure, including bracing piece, support base, fixed block, threaded rod and first conical gear, the inner chamber has been seted up to the inside of supporting the base, the inner chamber has been seted up to the inside of bracing piece, sliding connection has the bracing piece in the inner chamber of support base, the inner wall fixedly connected with fixed block of department of bracing piece, the inner chamber diapire department of supporting the base rotates the one end that is connected with the threaded rod, the other end department of threaded rod extend to in the inner chamber of bracing piece and with between the fixed block threaded connection, the first conical gear of bottom arc wall department fixedly connected with of threaded rod.
Furthermore, the demonstration structures are arranged in a plurality of groups in total, and the demonstration structures in the plurality of groups are arranged on the supporting columns at equal intervals.
Furthermore, the arc-shaped walls of the plurality of rotating rings are fixedly connected with electric connection metal sheets.
Further, the lateral wall department fixedly connected with backup pad of fixed curb plate, the upper surface department equidistance fixedly connected with of backup pad installs the casing a plurality of.
Furthermore, an electric storage battery is fixedly mounted in each of the inner cavities of the plurality of mounting shells, and electric connection reeds are fixedly connected to the upper sides of the plurality of mounting shells.
Further, the storage battery and the power connection reed are electrically connected to each other.
Furthermore, the power connection reed and the power connection metal sheet are positioned in the same vertical plane, and the power connection reed and the power connection metal sheet are meshed with each other.
Furthermore, the electric connection metal sheet and the bright lamp are electrically connected with each other.
Furthermore, a limit hole is formed in the side edge of the housing, and one end of the limit pin extends into the limit hole of the housing.
Further, bearing structure is total two sets ofly, and is two sets of bearing structure is respectively with the bottom fixed connection of two fixed curb plates, two it is connected with the dwang to rotate between the support base, the arc wall fixedly connected with rolling disc of department of dwang, the equal fixedly connected with second bevel gear of both ends department of dwang, two second bevel gear respectively with two intermeshing between the first bevel gear.
The beneficial effect of this application is: the application provides an addition and subtraction calculation device for primary school mathematical education with high interestingness.
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 perspective view of an embodiment of the present application
FIG. 2 is a schematic diagram of an internal structure of an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present disclosure;
FIG. 4 is a side view of a rotating ring according to an embodiment of the present application;
FIG. 5 is an enlarged view of a portion of the structure shown at B in FIG. 4 according to an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a supporting base according to an embodiment of the present application.
In the figure: 1. the electric power storage device comprises a supporting column, 2, a fixed side plate, 3, a rotating ring, 4, a supporting rod, 5, a supporting base, 6, a fixed block, 7, a threaded rod, 8, a first bevel gear, 9, a second bevel gear, 10, a rotating rod, 11, a rotating disc, 12, a handle rod, 13, an electric connection metal sheet, 14, a supporting plate, 15, an installation shell, 16, an electric storage battery, 17, an electric connection reed, 18, a connecting rod, 19, a bright lamp, 20, a housing, 21, a sliding block, 22, a spring, 23, a fixed rod, 24, a connecting plate, 25 and a limiting pin.
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, an addition and subtraction algorithm device for primary school mathematics teaching includes a support column 1, a fixed side plate 2, a demonstration structure, a limit fixing structure and a support structure;
the demonstration structure comprises a rotating ring 3, a handle rod 12, a connecting rod 18, a bright lamp 19 and a housing 20, wherein the rotating ring 3 is rotatably connected to the arc-shaped wall of the support column 1 in an interference fit manner, the handle rod 12 is fixedly connected to the arc-shaped wall of the rotating ring 3, the connecting rod 18 is fixedly connected to the arc-shaped wall of the rotating ring 3, the bright lamp 19 is fixedly connected to one end of the connecting rod 18, and the housing 20 is slidably sleeved on the arc-shaped wall of the connecting rod 18;
a limiting fixing structure is arranged on the connecting rod 18 and comprises a sliding block 21, a spring 22, a fixing rod 23, a connecting plate 24 and a limiting pin 25, a sliding groove cavity is formed in the connecting rod 18, the sliding groove cavity of the connecting rod 18 is connected with the sliding block 21 in a sliding mode, one end of the fixing rod 23 is fixedly connected to the upper surface of the sliding block 21, the other end of the fixing rod 23 penetrates through the upper wall of the sliding groove cavity of the connecting rod 18 and extends out of the wall, one end of the spring 22 is fixedly connected to the upper surface of the sliding block 21, the other end of the spring 22 extends to the upper wall of the sliding groove cavity of the connecting rod 18 and is fixedly connected with the upper wall of the sliding groove cavity of the connecting rod 18, the connecting plate 24 is fixedly connected to the top end of the fixing rod 23, and the limiting pin 25 is fixedly connected to the lower surface of the connecting plate 24;
the utility model discloses a supporting structure, including bracing piece 4, support base 5, fixed block 6, threaded rod 7 and first bevel gear 8, the inner chamber has been seted up to the inside of supporting base 5, the inner chamber has been seted up to the inside of bracing piece 4, sliding connection has bracing piece 4 in the inner chamber of support base 5, the fixedly connected with fixed block 6 of inner wall department of bracing piece 4, the inner chamber diapire department of supporting base 5 rotates the one end that is connected with threaded rod 7, the other end department of threaded rod 7 extend to in the inner chamber of bracing piece 4 and with between the fixed block 6 threaded connection, the first bevel gear 8 of bottom arc wall department fixedly connected with of threaded rod 7.
The demonstration structures are arranged on the support column 1 in a plurality of groups in total, and the demonstration structures in the plurality of groups are arranged on the support column 1 at equal intervals; the arc-shaped walls of the rotating rings 3 are fixedly connected with electric connection metal sheets 13; the side wall of the fixed side plate 2 is fixedly connected with a support plate 14, and the upper surface of the support plate 14 is fixedly connected with a plurality of mounting shells 15 at equal intervals; the inner cavities of the installation shells 15 are all fixedly provided with an electric storage battery 16, and the upper sides of the installation shells 15 are all fixedly connected with electric contact springs 17; the electric storage battery 16 and the power connection reed 17 are electrically connected with each other; the power connection reed 17 and the power connection metal sheet 13 are positioned in the same vertical plane, and the power connection reed 17 and the power connection metal sheet 13 are meshed with each other; the electric connection metal sheet 13 and the bright lamp 19 are electrically connected with each other; a limit hole is formed in the side edge of the housing 20, and one end of the limit pin 25 extends into the limit hole of the housing 20; the bearing structure is total two sets ofly, two the bearing structure is respectively with the bottom fixed connection of two fixed curb plates 2, two it is connected with dwang 10 to rotate between the support base 5, the arc wall fixedly connected with rolling disc 11 of dwang 10, the equal fixedly connected with second bevel gear 9 of both ends department of dwang 10, two second bevel gear 9 meshes between respectively and two first bevel gear 8.
When the device is used, firstly, a teacher drives the rotating rod 10 to rotate by rotating the rotating disc 11 before using, drives the second bevel gear 9 to rotate by rotating the rotating rod 10, drives the first bevel gear 8 to rotate by rotating the second bevel gear 9, further drives the threaded rod 7 to rotate, drives the fixing block 6 to move by rotating the threaded rod 7, further drives the supporting rod 4 to move, so that the supporting rod 4 drives the fixing side plate 2 to move up and down, further adjusts the overall height of the device, and is convenient for the teacher to operate and use, before teaching, the handle rod 12 is rotated, so that the handle rod 12 drives the rotating ring 3 to rotate, and the power connection metal sheet 13 is separated from the power connection reed 17, meanwhile, the housing 20 is rotated to the bottom side of the rotating ring 3, during teaching, the handle rod 12 of the rotating part is rotated first, so that the power connection metal sheet 13 is meshed with the power connection reed 17, the electric storage battery 16 supplies power for the lighting lamp 19, the lighting lamp 19 lights, the student counts the number of the lighted cover 20, then rotates part of the handle rod 12 again to light part of the cover 20, and counts the number of the lighted cover 20 for two times again, so that the sum of the two times can be obtained, addition and subtraction teaching is carried out, when the cover 20 with other shapes needs to be replaced, the connecting plate 24 is moved upwards to drive the limiting pin 25 to move, so that the limiting pin 25 is separated from the cover 20, then the cover 20 is moved to take the cover 20 down from the connecting rod 18, the cover 20 with other shapes is replaced, the replaced cover 20 is sleeved on the arc wall of the connecting rod 18 again, the connecting plate 24 is loosened, the connecting plate 24 is driven to move through the rebounding effect of the spring 22, so that the limiting pin 25 is inserted into the limiting hole of the cover 20, and then the housing 20 is limited and fixed, and the replacement work is completed.
The application has the advantages that:
1. the device is reasonable in structure and convenient to use, is suitable for being used by the addition and subtraction algorithm of the lower grade of the small school, performs number demonstration of the addition and subtraction algorithm through the demonstration structure, and is good in interestingness and teaching effect;
2. the device is provided with a limiting fixing structure, the housing can be conveniently disassembled and assembled through the limiting fixing structure, housings with other shapes can be conveniently replaced, and after housings with other different shapes are replaced, the interestingness is further enhanced;
3. this device has bearing structure, can carry out comparatively convenient adjustment to the height of this device through bearing structure, and the teacher of the difference of being convenient for uses the operation, is fit for using widely.
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 (10)
1. An addition and subtraction calculation device for primary school mathematics teaching is characterized in that: the demonstration device comprises a support column (1), a fixed side plate (2), a demonstration structure, a limiting and fixing structure and a support structure;
the demonstration structure comprises a rotating ring (3), a handle rod (12), a connecting rod (18), a bright lamp (19) and a housing (20), wherein the rotating ring (3) is rotatably connected to the arc-shaped wall of the supporting column (1) in an interference fit manner, the handle rod (12) is fixedly connected to the arc-shaped wall of the rotating ring (3), the connecting rod (18) is fixedly connected to the arc-shaped wall of the rotating ring (3), the bright lamp (19) is fixedly connected to one end of the connecting rod (18), and the housing (20) is slidably sleeved on the arc-shaped wall of the connecting rod (18);
the connecting rod (18) is provided with a limiting fixing structure, the limiting fixing structure comprises a sliding block (21), a spring (22), a fixing rod (23), a connecting plate (24) and a limiting pin (25), a sliding groove cavity is formed in the connecting rod (18), the sliding groove cavity of the connecting rod (18) is connected with the sliding block (21) in a sliding mode, one end of the fixing rod (23) is fixedly connected to the upper surface of the sliding block (21), the other end of the fixing rod (23) penetrates through the upper wall of the sliding groove cavity of the connecting rod (18) and extends out of the wall, one end of the spring (22) is fixedly connected to the upper surface of the sliding block (21), the other end of the spring (22) extends to the upper wall of the sliding groove cavity of the connecting rod (18) and is fixedly connected with the upper wall of the sliding groove cavity of the connecting rod (18), and the connecting plate (24) is fixedly connected to the top end of the fixing rod (23), a limiting pin (25) is fixedly connected to the lower surface of the connecting plate (24);
the utility model discloses a bearing structure, including bracing piece (4), support base (5), fixed block (6), threaded rod (7) and first conical gear (8), the inner chamber has been seted up to the inside of supporting base (5), the inner chamber has been seted up to the inside of bracing piece (4), sliding connection has bracing piece (4) in the inner chamber of support base (5), the inner wall fixedly connected with fixed block (6) of department of bracing piece (4), the inner chamber diapire department of support base (5) rotates the one end that is connected with threaded rod (7), the other end department of threaded rod (7) extend to in the inner chamber of bracing piece (4) and with between fixed block (6) threaded connection, the first conical gear (8) of bottom arc wall department fixedly connected with of threaded rod (7).
2. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 1, characterized in that: the demonstration structure is provided with a plurality of groups in total, and the demonstration structures in the groups are arranged on the support column (1) at equal intervals.
3. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 1, characterized in that: the arc-shaped walls of the rotating rings (3) are fixedly connected with electric connection metal sheets (13).
4. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 1, characterized in that: the lateral wall department fixedly connected with backup pad (14) of fixed curb plate (2), a plurality of installation casings (15) of upper surface department equidistance fixedly connected with of backup pad (14).
5. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 4, characterized in that: and the inner cavities of the plurality of mounting shells (15) are fixedly provided with storage batteries (16).
6. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 4, characterized in that: the upper sides of the plurality of mounting shells (15) are fixedly connected with power connection reeds (17).
7. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 5, characterized in that: the electric storage battery (16) and the power connection reed (17) are electrically connected with each other.
8. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 6, characterized in that: the electric contact reed (17) and the electric contact metal sheet (13) are positioned in the same vertical plane, the electric contact reed (17) and the electric contact metal sheet (13) are mutually meshed, and the electric contact metal sheet (13) and the bright lamp (19) are mutually and electrically connected.
9. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 6, characterized in that: a limiting hole is formed in the side edge of the housing (20), and one end of the limiting pin (25) extends into the limiting hole of the housing (20).
10. The addition and subtraction algorithm device for primary school mathematics teaching according to claim 1, characterized in that: the utility model discloses a bearing structure is including bearing structure, bearing structure is total two sets ofly, two bearing structure respectively with the bottom fixed connection of two fixed curb plates (2), two it is connected with dwang (10) to rotate between support base (5), arc wall fixedly connected with rolling disc (11) of dwang (10) department, the equal fixedly connected with second bevel gear (9) of both ends department of dwang (10), two second bevel gear (9) respectively with two intermeshing between first bevel gear (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120392977.8U CN214955533U (en) | 2021-02-23 | 2021-02-23 | Addition and subtraction calculation device for primary school mathematics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120392977.8U CN214955533U (en) | 2021-02-23 | 2021-02-23 | Addition and subtraction calculation device for primary school mathematics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214955533U true CN214955533U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120392977.8U Expired - Fee Related CN214955533U (en) | 2021-02-23 | 2021-02-23 | Addition and subtraction calculation device for primary school mathematics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214955533U (en) |
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2021
- 2021-02-23 CN CN202120392977.8U patent/CN214955533U/en not_active Expired - Fee Related
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Granted publication date: 20211130 |