CN205158722U - Count manual enlightenment appearance of reading and writing plus -minus - Google Patents
Count manual enlightenment appearance of reading and writing plus -minus Download PDFInfo
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- CN205158722U CN205158722U CN201520943330.4U CN201520943330U CN205158722U CN 205158722 U CN205158722 U CN 205158722U CN 201520943330 U CN201520943330 U CN 201520943330U CN 205158722 U CN205158722 U CN 205158722U
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- baffle plate
- slide bar
- pearl
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- regions
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Abstract
The utility model relates to a count manual enlightenment appearance of reading and writing plus -minus contains a baffle and an advance and retreat part, it is regional to divide into hundred regions, ten regions and unit on the baffle, and hundred regions are used for hanging gets hundred pearl clusters, and ten regions are used for hanging gets ten pearl clusters, be provided with a plurality of beads on the part of advance and retreat positions, advance and retreat position part contains ten slide bars unit slide bar regional with being located the unit that is located ten regions, and ten slide bars and unit slide bar are through the smooth connection of connection slide rail, the utility model discloses a count manual enlightenment appearance of reading and writing plus -minus, its simple structure, convenient to use can let children's acquisition number in observing, think and operate feel, understands the regular and operation rule of reading and writing of grasp mathematics, to count, the reading, write scalar sum operation and combine, utilize full ten advance one with move back one and make ten principle and calculate, application method flexible and diverse has played fine teaching effect, is the fine enlightenment apparatus that children learnt mathematics.
Description
Technical field
The utility model relates to a kind of teaching apparatus for primary school maths, specifically a kind of by abstract numerical digit, digital imagery, complicated read-write simple in ruleization, the plus-minus of profundity is calculated reason and is specialized, and collection number number, read-write, computing and the several read-writes plus-minuss operated in integrally manually impart rudimentary knowledge to beginners instrument.
Background technology
Ready-made spillikin, pentagram, finger are all motivates children number numbers, recognize the fabulous resource of number, read-write, simple plus-minus, but these intuitively can not reflect the relation in number between digital sum digit; Although counter can show numeral and the relation of numerical digit intuitively, the meaning of the number in specific digits can not be embodied visually; Abacus is counted from a high position, moves back though energy speed enters speed, cannot embody plus-minus advance and retreat principle intuitively; Media images is lively, and sight is true to nature, but cannot allow children's hands-on, and the wisdom of children is on his finger tip.
In teaching, above-mentioned resource has their respective advantage, has good value, but has limitation; In order to maximize favourable factors and minimize unfavourable ones, be conducive to of the leading of teacher, the drawing of the head of a family, student, therefore this several read-write plus-minus of utility model manually imparts rudimentary knowledge to beginners instrument.
Utility model content
For the technical matters of above-mentioned existence, the purpose of this utility model is: propose a kind of by abstract numerical digit, digital imagery, complicated read-write simple in ruleization, the plus-minus of profundity is calculated reason and is specialized, and collection number number, read-write, computing and the several read-writes plus-minuss operated in integrally manually impart rudimentary knowledge to beginners instrument.
Technical solution of the present utility model is achieved in that a kind of number number read-write plus-minus manually imparts rudimentary knowledge to beginners instrument, comprises baffle plate and advance and retreat position parts; Described baffle plate is provided with two dividing strips, the front side of baffle plate is from left to right divided into hundred regions, ten regions and region, individual position by two dividing strips successively, and hundred regions are used for hanging and taking hundred pearl strings, and ten regions are used for hanging and taking ten pearl strings; Described advance and retreat position parts are provided with multiple bead, and advance and retreat position parts comprise ten slide bars being positioned at ten regions and the individual position slide bar being positioned at a region, position, and ten slide bars and a position slide bar are by connecting sliding rail smooth connection.
Preferably, the dorsal part of described baffle plate is provided with fixed station, ten slide bars and a position slide bar all from the top of link plate around to the dorsal part of baffle plate, and are arranged on fixed station, and the bead on ten slide bars and a position slide bar is all arranged on ten slide bars and a position slide bar is positioned in the part of the dorsal part of baffle plate; Described connecting sliding rail is the U-shaped slide rail that Open Side Down, the two ends of this U-shaped slide rail respectively with ten slide bars and a position slide bar circular sliding slopes, form the U-shaped slide rail of two opening upwards.
Preferably, the dorsal part of described baffle plate is provided with fixed station, ten slide bars and a position slide bar all from the top of link plate around to the dorsal part of baffle plate, and are arranged on fixed station, and the bead on ten slide bars and a position slide bar is all arranged on ten slide bars and a position slide bar is positioned in the part of the dorsal part of baffle plate; Described connecting sliding rail is circular arc slide rail; Described baffle plate is respectively provided with a movable catch on corresponding ten slide bars with a position of position slide bar, and catch is provided with the groove coordinated with ten slide bars or individual position slide bar, when catch is opened, groove coordinates with slide rail, can hold bead, prevents bead landing.
Preferably, the front side of described baffle plate and dorsal part are respectively arranged with holder and fixed station; Described ten slide bars are arranged on holder; Described position slide bar from the top of link plate around to the dorsal part of baffle plate, and is arranged on fixed station, and the bead on the slide bar of individual position is arranged in its part being positioned at the dorsal part of baffle plate; The two ends of described connecting sliding rail respectively with ten slide bars and a position slide bar circular sliding slopes, and Open Side Down and the U-shaped slide rail of an opening upwards to form one respectively.
Preferably, hundred pearl strings are provided with 100 beads, ten pearl strings are provided with 10 beads.
Preferably, described ten slide bars are provided with 10 beads, individual position slide bar are provided with 20 beads
Preferably, the top of described baffle plate is provided with link plate, the corresponding part in link plate and hundred regions is provided with multiple hundred pearl hanging grooves, and hundred pearl hanging grooves are used for hanging and taking hundred pearl strings, the corresponding part in link plate and ten regions is provided with multiple ten pearl hanging grooves, ten pearl hanging grooves are used for hanging and taking ten pearl strings.
Preferably, described hundred pearl hanging grooves have 3, and ten pearl hanging grooves have 10.
Preferably, the bottom of described baffle plate is provided with the base plate of level.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners instrument, and its structure is simple, easy to use, children can be allowed in observation, thinking and operation to obtain number sense, the read-write rule of understand and master number and algorithm; In use, whole hundred numbers, whole ten numbers, units and numeral, numerical digit slitless connection, very clear; By several, reading, write number and computing combination, and efficiently solve the occupy-place problem of " 0 "; Utilize full ten to enter one and carry out calculating clearly with the principle of moving back a work ten, can count from a high position, also can count from low level, using method is versatile and flexible, can " gather ten methods ", " abacus using addition and subtraction instructions in rhyme " perform to ultimate attainment, serving good teaching function, is the good initiation apparatus of children for learning mathematics.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the front view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the first embodiment of instrument;
Accompanying drawing 2 is the rear view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the first embodiment of instrument;
Accompanying drawing 3 is the vertical view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the first embodiment of instrument;
Accompanying drawing 4 is the front view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the second embodiment of instrument;
Accompanying drawing 5 is the vertical view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the second embodiment of instrument;
Accompanying drawing 6 is the front view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the third embodiment of instrument;
Accompanying drawing 7 is the rear view that several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners the third embodiment of instrument.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
Embodiment 1:
As illustrated in the accompanying drawings from 1 to 3, a kind of number number read-write plus-minus described in the utility model manually imparts rudimentary knowledge to beginners instrument, comprises baffle plate 1 and advance and retreat position parts; The top of described baffle plate 1 and bottom are respectively arranged with link plate 2 and the base plate 8 of level, and baffle plate 1, link plate 2 and base plate 8 form a whole support; Described baffle plate 1 is provided with two dividing strips, 3, two dividing strips 3 and the front side of baffle plate 1 is from left to right divided into successively hundred regions, ten regions and region, individual position; The corresponding part in described link plate 2 and hundred regions is provided with 3 hundred pearl hanging groove 4, hundred pearl hanging grooves 4 and is tied with 100 beads for hanging and taking on hundred pearl strings, 5, hundred pearl string 5; The corresponding part in described link plate 2 and ten regions is provided with 10 ten pearl hanging groove 6, ten pearl hanging grooves 6 and is installed with 10 beads for hanging and taking on ten pearl strings, 7, ten pearl string 7; Described advance and retreat position parts comprise ten slide bars 11 being positioned at ten regions and the individual position slide bar 12 being positioned at a region, position, ten slide bars 11 and a position slide bar 12 are by middle connecting sliding rail 13 smooth connection, in an initial condition, ten slide bars 11 are provided with 10 beads, individual position slide bar 12 are provided with 20 beads.
The dorsal part of described baffle plate 1 is provided with fixed station 9, the upper end of ten slide bars 11 and a position slide bar 12 is all from the top of link plate 2 around to the dorsal part of baffle plate 1, and being arranged on fixed station 9, ten slide bars 11 are all arranged on ten slide bars 11 with the bead on a position slide bar 12 and are positioned in the part of the dorsal part of baffle plate 1 with a position slide bar 12; Described connecting sliding rail 13 is the U-shaped slide rail that Open Side Down, the two ends of this U-shaped slide rail respectively with ten slide bars 11 and position slide bar 12 circular sliding slopes, form the U-shaped slide rail of two opening upwards.
Embodiment 2:
As shown in accompanying drawing 4,5, a kind of number number read-write plus-minus described in the utility model manually imparts rudimentary knowledge to beginners instrument, comprises baffle plate 1 and advance and retreat position parts; The top of described baffle plate 1 and bottom are respectively arranged with link plate 2 and the base plate 8 of level, and baffle plate 1, link plate 2 and base plate 8 form a whole support; Described baffle plate 1 is provided with two dividing strips, 3, two dividing strips 3 and the front side of baffle plate 1 is from left to right divided into successively hundred regions, ten regions and region, individual position; The corresponding part in described link plate 2 and hundred regions is provided with 3 hundred pearl hanging groove 4, hundred pearl hanging grooves 4 and is tied with 100 beads for hanging and taking on hundred pearl strings, 5, hundred pearl string 5; The corresponding part in described link plate 2 and ten regions is provided with 10 ten pearl hanging groove 6, ten pearl hanging grooves 6 and is installed with 10 beads for hanging and taking on ten pearl strings, 7, ten pearl string 7; Described advance and retreat position parts comprise ten slide bars 11 being positioned at ten regions and the individual position slide bar 12 being positioned at a region, position, ten slide bars 11 and a position slide bar 12 are by middle connecting sliding rail 13 smooth connection, in an initial condition, ten slide bars 11 are provided with 10 beads, individual position slide bar 12 are provided with 20 beads.
The dorsal part of described baffle plate 1 is provided with fixed station 9, ten slide bars 11 and a position slide bar 12 are all from the top of link plate 2 around to the dorsal part of baffle plate 1, and being arranged on fixed station 9, ten slide bars 11 are all arranged on ten slide bars 11 with the bead on a position slide bar 12 and are positioned in the part of the dorsal part of baffle plate 1 with a position slide bar 12; Described connecting sliding rail 13 is circular arc slide rail; The front side of described baffle plate 1 is respectively provided with a catch 14 on corresponding ten slide bars 11 with a position of position slide bar 12, the rear end of catch 14 is hinged on baffle plate 1, the front end of catch 14 is provided with the groove coordinated with ten slide bars 11 or individual position slide bar 12, when catch 14 is opened, groove coordinates with slide rail, can bead be held, prevent bead landing.
Embodiment 3:
As illustrated in 6,7, a kind of number number read-write plus-minus described in the utility model manually imparts rudimentary knowledge to beginners instrument, comprises baffle plate 1 and advance and retreat position parts; The top of described baffle plate 1 and bottom are respectively arranged with link plate 2 and the base plate 8 of level, and baffle plate 1, link plate 2 and base plate 8 form a whole support; Described baffle plate 1 is provided with two dividing strips, 3, two dividing strips 3 and the front side of baffle plate 1 is from left to right divided into successively hundred regions, ten regions and region, individual position; The corresponding part in described link plate 2 and hundred regions is provided with 3 hundred pearl hanging groove 4, hundred pearl hanging grooves 4 and is tied with 100 beads for hanging and taking on hundred pearl strings, 5, hundred pearl string 5; The corresponding part in described link plate 2 and ten regions is provided with 10 ten pearl hanging groove 6, ten pearl hanging grooves 6 and is installed with 10 beads for hanging and taking on ten pearl strings, 7, ten pearl string 7; Described advance and retreat position parts comprise ten slide bars 11 being positioned at ten regions and the individual position slide bar 12 being positioned at a region, position, ten slide bars 11 and a position slide bar 12 are by middle connecting sliding rail 13 smooth connection, in an initial condition, individual position slide bar 12 is provided with 20 beads.
The front side of described baffle plate 1 and dorsal part are respectively arranged with holder 10 and fixed station 9, and holder 10 is arranged on base plate 8; Described ten slide bars 11 are arranged on holder 10; Described position slide bar 12 from the top of link plate 2 around to the dorsal part of baffle plate 1, and is arranged on fixed station 9, and the bead on individual position slide bar 12 is arranged in its part being positioned at the dorsal part of baffle plate 1; Described connecting sliding rail 13 is arranged between ten slide bars 11 and individual position slide bar 12 vertically, the two ends of connecting sliding rail 13 respectively with ten slide bars 11 and position slide bar 12 circular sliding slopes, and Open Side Down and the U-shaped slide rail of an opening upwards to form one respectively.
The several read-writes plus-minus of the various embodiments described above manually imparts rudimentary knowledge to beginners instrument, and though its be in hundred regions, ten regions or in region, individual position, all counted by the number of bead; And when reality uses, hundred pearl strings 5 can called after hundred pearl ten showy flowers of herbaceous plants, ten pearl strings 7 can called after ten pearl grass, and can teach through lively activities like this, convenient for children is remembered; Wherein conveniently illustrate, the actual number of the bead in figure and on not shown hundred pearl strings 5, hundred pearl strings 5 are generally hundred pearl ten showy flowers of herbaceous plants be made up of 10 ten pearl strings 7, certainly, hundred pearl strings 5 also can hang 100 beads by other array modes.
Several read-write plus-minus of the present utility model manually imparts rudimentary knowledge to beginners instrument, all comprehensive several functions in kind, the read-write capability of counter, the calculation function of abacus, memory function, plus-minus rule vertical with written calculation, plus-minus mental arithmetic Design with Rule utility model, there are extremely strong actuality and operability, excellent.
Below just number number read-write plus-minus manually initiation instrument specifically make be used as a brief description:
One, number is counted:
By dialling bead understanding " individual " and " several " on slide bar;
By hanging and taking 10 pearls grass understanding " ten " and " several ten ";
By hanging and taking hundred pearl ten showy flowers of herbaceous plants understanding " hundred " and " several hundred ".
Two, read and write:
Hundred districts hang up several hundred and attend school hundreds of, and ten districts hang up several ten and attend school tens, and individual position slide bar is dialled upper several one and attend school several, middle ten one ten, districts do not hang yet and are just just expressed as " 0 "; How to read just how to write, have followed read-write rule.
Three, computing:
No matter add deduct, hundred districts, ten districts, the Ge Wei districts of initial state are zero; Sometimes ten ten, district slide bars can stay one ten because of the needs of giving up the throne, and also can not stay.
First hang up several hundred, Ji Geshi according to hundred districts of summand hundreds of several tens successively in correspondence from a high position to low level, ten districts when doing addition, dial several one in individual position, if ten do not have with that upper number of position yet, just do not hang or do not dial.
Use the same method after hanging group good summand to hang again and dial addend, two numbers on whom fill it up with ten mutually, must enter one to last position; Directly can dial 10 beads from individual position slide bar when individual position fills it up with ten mutually and enter one ten to ten slide bars, also can operate according to abacus addition pithy formula " several go several enter one "; Finally read or write out operation result.
When doing subtraction, to hang in corresponding numerical digit district according to the pronunciation of minuend and dial minuend, then according to the pronunciation of subtrahend, take corresponding number away in corresponding numerical digit district, can one ten be borrowed to do ten to a position by Xiang Shiwei when individual position subtracts not.The method of moving back a work ten has two kinds: the first directly takes ten pearl grass to do 10 to a position in ten districts; One is hung less when ten districts hang ten pearl grass when the second hangs minuend, 10 beads on ten slide bars are dialled, represent one ten, when individual position subtracts not, directly move back one ten from ten slide bars and do ten to individual position, also can apply abacus subtraction pithy formula " several move back also several " and calculate; Finally read or write out operation result.
The operational method and flexibly of the manual initiation instrument of this number number read-write plus-minus, method is varied, cannot describe one by one, can only grasp flexibly with the person of leading, scholar, but prerequisite to follow plus and minus calculation rule.
Now for the scheme of embodiment 1, illustrate its using method:
First set calculative raw value, namely first corresponding hundred pearl string 5 and ten pearl strings 7 are hung up in hundred regions and/or ten regions, for the numerical value in accompanying drawing, hundred regions hang with 1 hundred pearl string 5, are 1 hundred, and ten regions hang with 4 ten pearl strings 7, it is 4 ten, bead on advance and retreat position parts in figure is original state, and existing hypothesis dials two beads to front from slide bar 12 rear portion, individual position, and these two beads all can be parked in advance and retreat position parts and be positioned on the position in a region, position; As from the foregoing, the raw value of now computing is 100 add 40 and add 2, is 142.
Present elder generation is example with additive, illustrate that calculating 142 adds the process of 9, from the rear portion of individual position slide bar 12,9 beads are pushed front, at this moment, region, individual position has 11 beads, the computing rule of one is entered according to full ten, 10 beads are allocated to advance and retreat position parts through connecting sliding rail 13 to be positioned on the position in ten regions, equally in example 2, after bead is pushed position, catch 14 is needed to open, stop bead to glide to go back, at this moment, the bead situation shown in front is: there is 1 hundred pearl string 5 in hundred regions, there are 4 ten pearl strings 7 and 10 beads in ten regions, region, individual position remains 1 bead, add up and come to 151, complete the calculating that 142 add 9, at the end of calculating, advance and retreat position parts can also be allocated to the rear portion of ten slide bars 11 at 10 beads in ten regions, and take ten pearl strings 7 to be suspended to ten regions, such result is more directly perceived.
Now again for subtraction, illustrate 142 subtract 5 process, because a region, position only has 2 beads now, discontented 5, according to the computing rule moving back a work ten, ten pearl strings 7 are taken away one, and dial 10 beads from the rear portion of ten slide bars 11 to above to supply current value, at this moment, on the front of advance and retreat position parts, one has 12 beads, do subtraction to need 5 beads to push its rear portion from individual position slide bar 12, at this moment, advance and retreat position parts only remain 7 beads, these 7 beads being allocated to advance and retreat position parts is positioned in the part in a region, position, now, the bead situation shown in front is: there is 1 hundred pearl string 5 in hundred regions, there are 3 ten pearl strings 7 in ten regions, region, individual position remains 7 beads, add up and come to 137, complete the calculating that 142 subtract 5.
And in example 2, need, according to the real process calculated, the catch 14 of ten slide bars 11 or individual position slide bar 12 correspondence to be opened, to stop bead to slide, makes on its region resting on current needs; Or being packed up by catch 14 makes bead slide into respective regions.
For embodiment 3, because ten slide bars 11 are positioned at the front side of baffle plate 1, therefore, when doing addition, need first the bead of ten slide bars 11 " to be emptied ", all slide into a rear portion for position slide bar 12 by the bead on ten slide bars 11, make a rear portion one for position slide bar 12 have 20 beads; During as subtraction, need in advance the bead at slide bar 12 rear portion, individual position to be got 10 and slide on ten slide bars 11.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (9)
1. number number read-write plus-minus manually imparts rudimentary knowledge to beginners an instrument, it is characterized in that: comprise baffle plate (1) and advance and retreat position parts; Described baffle plate (1) is provided with two dividing strips (3), article two, the front side of baffle plate (1) is from left to right divided into hundred regions, ten regions and region, individual position by dividing strip (3) successively, hundred regions are used for hanging and taking hundred pearl strings (5), and ten regions are used for hanging and taking ten pearl strings (7); Described advance and retreat position parts are provided with multiple bead, advance and retreat position parts comprise ten slide bars (11) being positioned at ten regions and individual position slide bar (12) being positioned at a region, position, and ten slide bars (11) and position slide bar (12) are by connecting sliding rail (13) smooth connection.
2. several read-write plus-minus according to claim 1 manually imparts rudimentary knowledge to beginners instrument, it is characterized in that: the dorsal part of described baffle plate (1) is provided with fixed station (9), ten slide bars (11) and position slide bar (12) are all from the top of link plate (2) around to the dorsal part of baffle plate (1), and being arranged on fixed station (9), the bead on ten slide bars (11) and position slide bar (12) is all arranged on ten slide bars (11) and individual position slide bar (12) is positioned in the part of the dorsal part of baffle plate (1); Described connecting sliding rail (13) is the U-shaped slide rail that Open Side Down, the two ends of this U-shaped slide rail respectively with ten slide bars (11) and position slide bar (12) circular sliding slopes, form the U-shaped slide rail of two opening upwards.
3. several read-write plus-minus according to claim 1 manually imparts rudimentary knowledge to beginners instrument, it is characterized in that: the dorsal part of described baffle plate (1) is provided with fixed station (9), ten slide bars (11) and position slide bar (12) are all from the top of link plate (2) around to the dorsal part of baffle plate (1), and being arranged on fixed station (9), the bead on ten slide bars (11) and position slide bar (12) is all arranged on ten slide bars (11) and individual position slide bar (12) is positioned in the part of the dorsal part of baffle plate (1); Described connecting sliding rail (13) is circular arc slide rail; Described baffle plate (1) is respectively provided with a movable catch (14) on the position of corresponding ten slide bars (11) and individual position slide bar (12), catch (14) is provided with the groove coordinated with ten slide bars (11) or individual position slide bar (12), when catch (14) is opened, groove coordinates with slide rail, can bead be held, prevent bead landing.
4. several read-write plus-minus according to claim 1 manually imparts rudimentary knowledge to beginners instrument, it is characterized in that: the front side of described baffle plate (1) and dorsal part are respectively arranged with holder (10) and fixed station (9); Described ten slide bars (11) are arranged on holder (10); Described position slide bar (12) from the top of link plate (2) around to the dorsal part of baffle plate (1), and is arranged on fixed station (9), and the bead on individual position slide bar (12) is arranged in its part being positioned at the dorsal part of baffle plate (1); The two ends of described connecting sliding rail (13) respectively with ten slide bars (11) and position slide bar (12) circular sliding slopes, and Open Side Down and the U-shaped slide rail of an opening upwards to form one respectively.
5. the several read-write plus-minuss according to claim 1,2,3 or 4 manually impart rudimentary knowledge to beginners instrument, it is characterized in that: hundred pearl strings (5) are provided with 100 beads, ten pearl strings (7) are provided with 10 beads.
6. the several read-write plus-minuss according to Claims 2 or 3 manually impart rudimentary knowledge to beginners instrument, it is characterized in that: described ten slide bars (11) are provided with 10 beads, individual position slide bar (12) are provided with 20 beads.
7. the several read-write plus-minuss according to claim 1,2,3 or 4 manually impart rudimentary knowledge to beginners instrument, it is characterized in that: the top of described baffle plate (1) is provided with link plate (2), link plate (2) and the corresponding part in hundred regions are provided with multiple hundred pearl hanging grooves (4), hundred pearl hanging grooves (4) are for hanging and taking hundred pearl strings (5), link plate (2) and the corresponding part in ten regions are provided with multiple ten pearl hanging grooves (6), and ten pearl hanging grooves (6) are for hanging and taking ten pearl strings (7).
8. several read-write plus-minus according to claim 7 manually imparts rudimentary knowledge to beginners instrument, it is characterized in that: described hundred pearl hanging grooves (4) have 3, and ten pearl hanging grooves (6) have 10.
9. the several read-write plus-minuss according to claim 1,2,3 or 4 manually impart rudimentary knowledge to beginners instrument, it is characterized in that: the bottom of described baffle plate (1) is provided with the base plate (8) of level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943330.4U CN205158722U (en) | 2015-11-24 | 2015-11-24 | Count manual enlightenment appearance of reading and writing plus -minus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943330.4U CN205158722U (en) | 2015-11-24 | 2015-11-24 | Count manual enlightenment appearance of reading and writing plus -minus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205158722U true CN205158722U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943330.4U Expired - Fee Related CN205158722U (en) | 2015-11-24 | 2015-11-24 | Count manual enlightenment appearance of reading and writing plus -minus |
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| Country | Link |
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| CN (1) | CN205158722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336248A (en) * | 2015-11-24 | 2016-02-17 | 王根火 | Counting, reading and writing add and subtract manual enlightenment instrument |
-
2015
- 2015-11-24 CN CN201520943330.4U patent/CN205158722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336248A (en) * | 2015-11-24 | 2016-02-17 | 王根火 | Counting, reading and writing add and subtract manual enlightenment instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181124 |