CN214098852U - Mechanical addition and subtraction calculator - Google Patents
Mechanical addition and subtraction calculator Download PDFInfo
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- CN214098852U CN214098852U CN202120136367.1U CN202120136367U CN214098852U CN 214098852 U CN214098852 U CN 214098852U CN 202120136367 U CN202120136367 U CN 202120136367U CN 214098852 U CN214098852 U CN 214098852U
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- subtraction
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- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 23
- 238000004364 calculation method Methods 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 19
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a calculator field discloses a mechanical plus-minus method calculator. The mechanical addition and subtraction calculator comprises a shell and at least two counting mechanisms arranged in the shell, wherein each counting mechanism comprises a counting assembly and a carry assembly, each counting assembly comprises a first rotating shaft, a counting gear and a digital display turntable, the first rotating shaft is rotatably arranged in the shell, and the counting gear and the digital display turntable are respectively arranged on the first rotating shaft; the carry subassembly includes second pivot, carry gear and carry monodentate, and the second pivot is rotated and is set up in the casing, and carry gear and carry monodentate set up respectively in the second pivot, and carry gear and count gear engagement, the carry monodentate of a count mechanism can stir another count mechanism's count gear. The utility model provides a mechanical addition and subtraction calculator has greatly reduced the complexity of structure under can realizing its calculation function's prerequisite well, has vividly demonstrated the calculation process of decimal addition and subtraction.
Description
Technical Field
The utility model relates to a calculator field especially relates to a mechanical plus-minus method calculator.
Background
The addition and subtraction operation of decimal numbers is an indispensable practical calculation method in modern life, the teaching mode of the decimal addition and subtraction operation is more through theoretical teaching, and a mechanical physical model is rarely applied to simulate the decimal calculation process.
In the existing mechanical calculator for addition and subtraction of decimal numbers, when the unit digit is 0 or 9 digit, the tens digit can be limited and blocked by the carry wheel, and when the unit digit is 0 or 9 digit, the hundreds digit can also be limited and blocked by the carry wheel, so that the calculator cannot normally operate. Meanwhile, the existing model is complex in structure, difficult to operate and poor in display effect, and cannot visually reflect the addition and subtraction operation process of the gear advance type.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model aims to provide a machinery adds subtraction calculator, the structure is simpler, and visual degree is high, and the display performance is good.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a mechanical plus-minus calculator, includes the casing and set up in two at least counting mechanism in the casing, every counting mechanism all includes:
the counting assembly comprises a first rotating shaft, a counting gear and a digital display turntable, the first rotating shaft is rotatably arranged in the shell, and the counting gear and the digital display turntable are respectively arranged on the first rotating shaft;
carry subassembly, including second pivot, carry gear and carry monodentate, the second pivot rotate set up in the casing, the carry gear with the carry monodentate set up respectively in on the second pivot, the carry gear with the meshing of count gear, one count mechanism the carry monodentate can stir another count mechanism count gear.
As the utility model discloses a preferred scheme of mechanical addition and subtraction calculator, the count subassembly still includes the knob, the knob set up in first pivot, and be located outside the casing.
As the utility model discloses a preferred scheme of mechanical addition subtraction calculator, the circumference of digital display carousel is provided with a plurality of digital signs.
As the utility model discloses a preferred scheme of mechanical addition subtraction calculator, the casing includes bottom plate, two first curb plates and two second curb plates, two first curb plate interval set up in on the width direction of bottom plate, two second curb plate interval set up in on the length direction of bottom plate.
As the preferred scheme of the mechanical addition and subtraction calculator of the utility model, every all be provided with the square hole on the second curb plate.
As the utility model discloses a preferred scheme of mechanical addition subtraction calculator, the casing still includes transparent cover plate, transparent cover plate lid is located first curb plate with on the second curb plate.
As the utility model discloses a preferred scheme of mechanical addition subtraction calculator, the counting mechanism still includes spacing subassembly, spacing subassembly is used for the restriction the rotation of count gear.
As the utility model discloses a preferred scheme of mechanical addition and subtraction calculator, spacing subassembly includes locating part and elastic component, the locating part can block in the tooth's socket of counting gear, the elastic component clamp is located the locating part with between the casing.
As the utility model discloses a preferred scheme of mechanical addition and subtraction calculator, spacing subassembly still includes the supporting shoe, the locating part set up in on the supporting shoe, be provided with the guide post on the supporting shoe, the guide post with the casing is connected, the elastic component cover is located on the guide post.
As the utility model discloses a preferred scheme of mechanical addition subtraction calculator, the locating part is provided with the first direction inclined plane and the second direction inclined plane that are the contained angle.
The utility model has the advantages that:
the utility model provides a mechanical plus-minus method calculator, can be used for showing the calculation process of decimal plus-minus method, two counting mechanisms can be units counting mechanism and ten counting mechanism respectively, for example show 7+5 calculation process, the first pivot of the ten counting mechanism is rotated to make the digital display rotary table rotate to the digital display as 0, the first pivot of the units counting mechanism is rotated to make the digital display rotary table rotate to the digital display as 7, the first pivot of the units counting mechanism drives the counting gear of the units counting mechanism to rotate, the counting gear of the units counting mechanism drives the carry gear of the units counting mechanism to rotate, the carry gear of the units counting mechanism drives the second pivot of the units counting mechanism to rotate, continue to rotate the first pivot of the units counting mechanism to make the digital display rotary table of the units counting mechanism rotate to the digital display as 2, in the process, when the digital display turntable of the unit counting mechanism rotates again until the digital display is 0, the first rotating shaft and the second rotating shaft of the unit counting mechanism rotate for a whole circle respectively, the carry single tooth of the unit counting mechanism stirs the counting gear of the tens counting mechanism to rotate at the moment, the digital display of the digital display turntable of the tens counting mechanism is changed from 0 to 1, and a result of 7+5 is obtained by combining the digital display turntable of the unit counting mechanism and the digital display turntable of the tens counting mechanism and is 12. The utility model provides a mechanical addition and subtraction calculator, the structure is simpler, visual degree is high, the display performance is good, the design theory of arranging in structural partition region has been taken, arrange according to certain order during the installation, greatly reduced the complexity of structure under the prerequisite that can realize its calculation function well, vividly show the calculation process of decimal addition and subtraction, can let the student directly perceivedly see the calculation process of decimal, help the student understand the decimal knowledge, and the calculation process is lively interesting, improve student's interest in learning.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is an isometric view of a mechanical addition-subtraction calculator provided in an embodiment of the present invention;
fig. 2 is a top view of a mechanical addition and subtraction calculator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a counting mechanism in a mechanical addition and subtraction calculator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a limiting component in a mechanical addition and subtraction calculator according to an embodiment of the present invention.
In the figure:
1-a shell; 2-a counting mechanism;
11-a base plate; 12-a first side panel; 13-a second side panel; 131-square holes;
21-a counting assembly; 22-a carry component; 23-a stop assembly;
211-a first shaft; 212-counter gear; 213-digital display dial; 214-a knob;
221-a second rotating shaft; 222-a carry gear; 223-carry single tooth;
231-a limiting member; 232-an elastic member; 233-supporting blocks; 234-guide post;
2311-a first guiding bevel; 2312-second guiding slope.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the present embodiment provides a mechanical addition and subtraction calculator, which includes a housing 1 and at least two counting mechanisms 2 disposed in the housing 1, each counting mechanism 2 includes a counting assembly 21 and a carry assembly 22, the counting assembly 21 includes a first rotating shaft 211, a counting gear 212 and a digital display turntable 213, the first rotating shaft 211 is rotatably disposed in the housing 1, and the counting gear 212 and the digital display turntable 213 are respectively disposed on the first rotating shaft 211; the carry assembly 22 includes a second rotating shaft 221, a carry gear 222 and a carry single tooth 223, the second rotating shaft 221 is rotatably disposed in the casing 1, the carry gear 222 and the carry single tooth 223 are respectively disposed on the second rotating shaft 221, the carry gear 222 is engaged with the counting gear 212, and the carry single tooth 223 of one counting mechanism 2 can toggle the counting gear 212 of another counting mechanism 2.
The mechanical addition and subtraction calculator can be used for displaying the calculation process of decimal addition and subtraction, two counting mechanisms 2 can be respectively a unit counting mechanism and a ten counting mechanism, for example, 7+5 calculation process is displayed, the first rotating shaft 211 of the ten counting mechanism is rotated to enable the digital display turntable 213 to rotate to the digital display as 0, the first rotating shaft 211 of the unit counting mechanism is rotated to enable the digital display turntable 213 to rotate to the digital display as 7, the first rotating shaft 211 of the unit counting mechanism drives the counting gear 212 of the unit counting mechanism to rotate, the counting gear 212 of the unit counting mechanism drives the carry gear 222 of the unit counting mechanism to rotate, the carry gear 222 of the unit counting mechanism drives the second rotating shaft 221 of the unit counting mechanism to rotate, and the first rotating shaft 211 of the unit counting mechanism is continuously rotated to enable the digital display turntable 213 of the unit counting mechanism to rotate to the digital display as 2 In the process, when the number display dial 213 of the unit counting mechanism rotates again until the number display is 0, the first rotating shaft 211 and the second rotating shaft 221 of the unit counting mechanism rotate for a whole circle respectively, at this time, the carry single tooth 223 of the unit counting mechanism shifts the counting gear 212 of the tens counting mechanism to rotate, the number display of the number display dial 213 of the tens counting mechanism is changed from 0 to 1, and the result of 7+5 is obtained by combining the number display dial 213 of the unit counting mechanism and the number display dial 213 of the tens counting mechanism is 12.
To facilitate manual rotation of the first shaft 211, the counting assembly 21 optionally further comprises a knob 214, the knob 214 being disposed on the first shaft 211 and located outside the housing 1. To facilitate recognition of the numeric display result of the numeric display turntable 213, optionally, a plurality of numeric indicators are provided circumferentially of the numeric display turntable 213.
To facilitate assembling the casing 1, optionally, the casing 1 includes a bottom plate 11, two first side plates 12 and two second side plates 13, the two first side plates 12 are disposed at intervals in a width direction of the bottom plate 11, and the two second side plates 13 are disposed at intervals in a length direction of the bottom plate 11. To facilitate carrying the case 1, a square hole 131 is optionally provided in each second side panel 13. To facilitate viewing of the digital display result of the digital display dial 213, optionally, the housing 1 further comprises a transparent cover plate covering the first side plate 12 and the second side plate 13.
To prevent the counter gear 212 from rotating to the middle position of two digits, the counter mechanism 2 optionally further includes a limiting assembly 23, and the limiting assembly 23 is used for limiting the rotation of the counter gear 212. In the present embodiment, the limiting assembly 23 includes a limiting member 231 and an elastic member 232, the limiting member 231 can be locked in the tooth slot of the counter gear 212, and the elastic member 232 is interposed between the limiting member 231 and the housing 1. In order to facilitate the installation of the elastic member 232 and the limiting member 231, optionally, the limiting member 23 further includes a supporting block 233, the limiting member 231 is disposed on the supporting block 233, a guiding post 234 is disposed on the supporting block 233, the guiding post 234 is connected with the housing 1, and the elastic member 232 is sleeved on the guiding post 234. To avoid too much influence on the normal rotation of the counter gear 212, the limiting member 231 is optionally provided with a first guiding inclined surface 2311 and a second guiding inclined surface 2312 which form an included angle.
The mechanical addition and subtraction calculator provided in this embodiment may be used to show the decimal addition and subtraction calculation process, the two counting mechanisms 2 may be a unit counting mechanism and a ten counting mechanism, for example, show the 7+5 calculation process, rotating the first rotating shaft 211 of the ten counting mechanism to rotate the digital display turntable 213 to the digital display of 0, rotating the first rotating shaft 211 of the unit counting mechanism to rotate the digital display turntable 213 to the digital display of 7, the first rotating shaft 211 of the unit counting mechanism driving the counting gear 212 of the unit counting mechanism to rotate, the counting gear 212 of the unit counting mechanism driving the carry gear 222 of the unit counting mechanism to rotate, the carry gear 222 of the unit counting mechanism driving the second rotating shaft 221 of the unit counting mechanism to rotate, and continuing to rotate the first rotating shaft 211 of the unit counting mechanism to rotate the digital display turntable 213 of the unit counting mechanism Until the number display is 2, in the process, when the number display turntable 213 of the unit counting mechanism rotates again until the number display is 0, the first rotating shaft 211 and the second rotating shaft 221 of the unit counting mechanism rotate for a whole circle respectively, at this time, the carry single tooth 223 of the unit counting mechanism shifts the counting gear 212 of the tens counting mechanism to rotate, the number display of the number display turntable 213 of the tens counting mechanism is changed from 0 to 1, and the result of 7+5 obtained by combining the number display turntable 213 of the unit counting mechanism and the number display turntable 213 of the tens counting mechanism is 12. The calculation process of the calculation subtraction is substantially the same, and the first rotation shaft 211 may be rotated in the reverse direction.
The mechanical addition and subtraction calculator provided by the embodiment has the advantages of simpler structure, high visualization degree and good display performance, adopts the design concept of structural region arrangement, is arranged according to a certain sequence during installation, greatly reduces the complexity of the structure on the premise of well realizing the calculation function, vividly shows the calculation process of the decimal addition and subtraction, can enable students to visually see the decimal calculation process, helps the students to understand decimal knowledge, is vivid and interesting in the calculation process, and improves the learning interest of the students.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A mechanical addition and subtraction calculator comprises a shell (1) and at least two counting mechanisms (2) arranged in the shell (1), wherein each counting mechanism (2) comprises:
the counting assembly (21) comprises a first rotating shaft (211), a counting gear (212) and a digital display turntable (213), the first rotating shaft (211) is rotatably arranged in the shell (1), and the counting gear (212) and the digital display turntable (213) are respectively arranged on the first rotating shaft (211);
carry subassembly (22), including second pivot (221), carry gear (222) and carry monodentate (223), second pivot (221) rotate set up in casing (1), carry gear (222) with carry monodentate (223) set up respectively on second pivot (221), carry gear (222) with count gear (212) meshing, one count mechanism (2) carry monodentate (223) can stir another count mechanism (2) count gear (212).
2. The mechanical addition-subtraction calculator of claim 1, wherein the counting assembly (21) further comprises a knob (214), the knob (214) being disposed on the first rotating shaft (211) and located outside the housing (1).
3. The mechanical addition subtraction calculator of claim 1, wherein a plurality of numerical marks are provided on a circumferential direction of the numerical display dial (213).
4. The mechanical addition-subtraction calculator according to claim 1, wherein the housing (1) includes a bottom plate (11), two first side plates (12), and two second side plates (13), the two first side plates (12) being disposed at intervals in a width direction of the bottom plate (11), and the two second side plates (13) being disposed at intervals in a length direction of the bottom plate (11).
5. A mechanical addition-subtraction calculator according to claim 4 wherein each of the second side plates (13) is provided with a square hole (131).
6. The mechanical addition-subtraction calculator of claim 4, wherein the housing (1) further comprises a transparent cover plate covering the first side plate (12) and the second side plate (13).
7. Mechanical add-subtract calculator according to any of claims 1-6, characterised in that the counting mechanism (2) further comprises a limiting assembly (23), the limiting assembly (23) being adapted to limit the rotation of the counting gear (212).
8. The mechanical addition/subtraction calculator according to claim 7, wherein the limiting assembly (23) includes a limiting member (231) and an elastic member (232), the limiting member (231) is lockable in a tooth groove of the counter gear (212), and the elastic member (232) is interposed between the limiting member (231) and the housing (1).
9. The mechanical addition and subtraction calculator according to claim 8, wherein the limiting component (23) further comprises a supporting block (233), the limiting member (231) is disposed on the supporting block (233), a guiding column (234) is disposed on the supporting block (233), the guiding column (234) is connected with the housing (1), and the elastic member (232) is sleeved on the guiding column (234).
10. The mechanical addition-subtraction calculator of claim 8, wherein the stop (231) is provided with a first guide ramp (2311) and a second guide ramp (2312) that are angled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136367.1U CN214098852U (en) | 2021-01-19 | 2021-01-19 | Mechanical addition and subtraction calculator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136367.1U CN214098852U (en) | 2021-01-19 | 2021-01-19 | Mechanical addition and subtraction calculator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214098852U true CN214098852U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120136367.1U Active CN214098852U (en) | 2021-01-19 | 2021-01-19 | Mechanical addition and subtraction calculator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214098852U (en) |
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2021
- 2021-01-19 CN CN202120136367.1U patent/CN214098852U/en active Active
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