CN105336249A - Co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways - Google Patents
Co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways Download PDFInfo
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- CN105336249A CN105336249A CN201510789641.4A CN201510789641A CN105336249A CN 105336249 A CN105336249 A CN 105336249A CN 201510789641 A CN201510789641 A CN 201510789641A CN 105336249 A CN105336249 A CN 105336249A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
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Abstract
The invention relates to a special triangular teaching aid for teaching and in particular relates to a co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways. The teaching aid provided by the invention is improved as follows: a wheel I-shaped outer circle is formed on an I-shaped wheel outer ring; a wheel inside surface is formed at the inner side of an I-shaped wheel; a wheel inner hole is formed in the wheel inside surface; a wheel step hole is formed in an I-shaped wheel outside surface; a wheel step surface is formed between the wheel step hole and the wheel inner hole; the wheel inner hole is rotatably matched in an outer circle of an outer section of a shaft pin; the wheel inside surface adheres to a shaft pin step; a wheel screw is matched on a shaft pin screw hole; a wheel screw head adheres to the outer end of the shaft pin and also shields the wheel step surface; the wheel I-shaped outer circle on the I-shaped wheel outer ring is in sliding fit with an I-shaped slide way; ball seat step holes are formed in an upper plane of a side ruler and are symmetrically arranged at two sides of the I-shaped slide way; and an externally protruded sphere protruding a slide ball seat outside surface on a slide ball seat outer half slice on a slide ball is in contact with a lower plane of a slide plate.
Description
Technical field
The present invention relates to the upper special triangle teaching aid of a kind of teaching, International Classification of Patents is B43L, particularly relates to wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid.
Background technology
Mathematics is one of important subject, and in Junior Mathematics, triangle geometry is most important.Learning triangle geometry well is junior middle school's plane geometry and even the most important basis of senior middle school's solid geometry.
At present, in teaching, the teaching aid of religion geometry has ruler, set square etc., and they exist many drawbacks: carry inconvenience, uses also inconvenient, prior or function singleness.When imparting knowledge to students drawing, user can only be online basic previous step one step draw figure required for oneself, drawing course is loaded down with trivial details, and it is not directly perceived, more can not training student association, analogy, observation and manipulative ability preferably, teacher should draw and say again, very busy, adds great work difficulty to education personnel.Chinese patent: the adjustable set square (patent No.: 2011200369592), but cannot accomplish that its three bars chi is at same plane, there is comparatively big error, another Chinese patent: the adjustable multipurpose four bar chi (patent No.: 2013201682530), also be to accomplish that its four bars chi is at same plane, still exists comparatively big error; Also has only one China patent: (patent No.: 2014208739549) remains and cannot accomplish that each ruler is at same plane, is all to there is comparatively big error multifunctional teaching gauge.
Summary of the invention
For above prior art Problems existing, the present invention adopts I-shaped chute, triangle teaching aid is carried out to the design of isoplanar free of discontinuities adjustment, achieve the angle that sizes is different, wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid one step can be shared and accurately put in place.Specific as follows:
Wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid, comprise the first portable plate, the second portable plate and the 3rd portable plate that three physical dimensions are identical, every portable plate is made up of chi plate portion and dial portion; First portable plate is made up of the first chi plate portion and the first dial portion, and the second portable plate is made up of the second chi plate portion and the second dial portion, and the 3rd portable plate is made up of the 3rd chi plate portion and the 3rd dial portion; I-shaped slideway on the first described chi plate portion and between the wheel I-shaped cylindrical on the 3rd dial portion for coordinating by rolling slip, I-shaped slideway on the second described chi plate portion and between the wheel I-shaped cylindrical on the first dial portion for coordinating by rolling slip, I-shaped slideway on the 3rd described chi plate portion and between the wheel I-shaped cylindrical on the second dial portion for coordinating by rolling slip, as improvement:
The lower surface of described dial portion is slide plate lower plane, and the upper surface of described chi plate portion is plane on the chi of limit; Slide plate lower plane there is rotation through hole, limit chi plane has chi plate stepped hole; Slide plate lower plane there is corner window, plane has corner scale with limit chi; On the chi of limit, planar inner has scale slope, and length scale is also engraved on scale slope; Plane there is I-shaped slideway with limit chi, I-shaped slideway and limit chi has transition to slot between plane, bottom I-shaped slideway, has chute bottom surface, and the described single-ended opening of I-shaped slideway; Slide plate lower plane has step pivot pin, step pivot pin has the outer section of pivot pin, pivot pin is outer is pivot pin step between section and described step pivot pin, and the outer section outer end of described pivot pin is pivot pin outer end, and there is pivot pin screw at center, pivot pin outer end;
I-shaped wheel outer ring there is wheel I-shaped cylindrical, be wheel medial surface inside I-shaped wheel, wheel medial surface have wheel endoporus, I-shaped wheel lateral surface has wheel stepped hole, between wheel stepped hole and wheel endoporus, has wheel step surface; Rotatablely on the outer section cylindrical of described pivot pin be combined with wheel endoporus, wheel medial surface againsts described pivot pin step; Described pivot pin screw is combined with wheel screw, wheel screw spiral shell brain againsts described pivot pin outer end, wheel screw spiral shell brain blocks wheel step surface simultaneously, and wheel screw exposes spiral shell brain and is positioned among described wheel stepped hole, and wheel screw exposes between spiral shell brain and chute bottom surface space; Wheel I-shaped cylindrical on described I-shaped wheel outer ring and between described I-shaped slideway for being slidably matched;
Pivot pin rivet passes through successively and rotates through hole and chi plate stepped hole, and pivot pin rivet to be overlapped on the chi of limit in plane by rotatable for slide plate lower plane; On described slide plate lower plane and described limit chi, plane is in sustained height;
Plane has pearl seat stepped hole with described limit chi, and pearl seat stepped hole is arranged symmetrically in described I-shaped slideway both sides, in pearl seat stepped hole, step has stepped hole plane, and stepped hole planar central has pearl seat blind hole; In sliding pearl seat, half is measure-alike with the outer half shape and structure of sliding pearl seat, all include sliding pearl seat cylindrical, sliding pearl seat faying face, sliding pearl seat lateral surface, sliding pearl seat faying face there is circular hole in sliding pearl seat, in sliding pearl seat, circular hole bottom is connected to sliding pearl seat internal taper hole stub end, and the little head end of sliding pearl seat internal taper hole is crossing with described sliding pearl seat lateral surface;
Described pearl seat stepped hole inner circle is fixed wtih the sliding pearl seat cylindrical in sliding pearl seat cylindrical in sliding pearl seat in half and the outer half of sliding pearl seat simultaneously, the sliding pearl seat internal taper hole in sliding pearl seat in half and be slidably matched between the sliding pearl seat internal taper hole sliding outside pearl seat in half and be fixed wtih slippage ball; In sliding pearl seat lateral surface on slippage ball in outstanding described sliding pearl seat in half, outstanding sphere is accommodated among described pearl seat blind hole; The outer outstanding sphere of the sliding pearl seat lateral surface on slippage ball in the outer half of outstanding described sliding pearl seat contacts with described slide plate lower plane;
The first described adjustable rule, the second adjustable rule and the 3rd adjustable rule are all adopt aluminum alloy materials on the whole, described slide plate lower plane there is a layer thickness be the hard aluminum titanium alloy coating of 0.24 to 0.26 millimeter, this hard aluminum titanium alloy material is made up of the element of following percentage by weight: Ti(titanium): 11 ~ 13%, W (tungsten): 5.7 ~ 5.9%, Cu(copper): 2.1 ~ 2.3%, Zn(zinc): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Al(aluminium) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.010%, P(phosphorus) be less than 0.015%.
As further improvement: the cylindrical value footpath of described I-shaped wheel is 3.7 to 3.9 millimeters, the inner circle value footpath of wheel endoporus is 1.4 to 1.6 millimeters, and the depth dimensions between I-shaped wheel lateral surface to wheel step surface is 2.1 to 2.3 millimeters.
As further improvement: the angle on described scale slope and limit chi between plane is 38 ~ 40 degree.
As further improvement: described length scale texture depth is 0.18 to 0.20 millimeter.
As further improvement: there is stepped hole angle face chi plate stepped hole both sides, the angle between the stepped hole angle face of both sides is 48 to 50 degree.
beneficial effect of the present invention:
One, dial portion is positioned at chi plate portion one end and is overlapped on plane on chi plate portion, and on slide plate lower plane and limit chi, plane is in sustained height, guarantees that the length scale on three limits is all in same level, avoids error on line of sight; And the I-shaped wheel on every portable plate and between the I-shaped slideway on adjacent activities plate for being slidably matched, particularly plane there is limit chi corner scale corresponding in position with the corner pointer on the slide plate lower plane back side, convenient, intuitively between control dial portion and chi plate portion the anglec of rotation can be accomplished; Pearl seat stepped hole internal fixtion particularly on the chi of limit in plane slippage ball; The outer outstanding sphere of slippage ball contacts with described slide plate lower plane, makes plane on the limit chi in each portable plate more easily smooth relative to slippage between the slide plate lower plane in another portable plate.
Two, the present invention adopts the portable composite construction of three group, disassembles, the size that takes up room is little, is easy to carry after convenient each use.
Three, education activities plate provided by the present invention, has structure simple, easy to use, demonstrates the advantages such as size, angle are changeable simultaneously.
Four, the present invention's entirety adopts aluminum alloy materials, and slide plate lower plane is electroplate with hard aluminum titanium alloy, has lightweight and that wearing quality is strong two-fold advantage.
Accompanying drawing explanation
Fig. 1 is single outside drawing of the second portable plate 20 after the present invention disassembles.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is the outside drawing of the second dial portion 28 in Fig. 1.
Fig. 4 is the isometric front view of Fig. 3.
Fig. 5 is the rear isometric view of Fig. 3.
Fig. 6 is the B-B cut-open view in Fig. 3.
Fig. 7 is the outside drawing of the second chi plate portion 29 in Fig. 1.
Fig. 8 is the C-C cut-open view in Fig. 7.
The outside drawing of equilateral triangle is developed into after Fig. 9 the present invention combination.
The outside drawing of isosceles triangle is developed into after Figure 10 the present invention combination.
The outside drawing of right-angle triangle is developed into after Figure 11 the present invention combination.
The outside drawing of right angled isosceles triangle is developed into after Figure 12 the present invention combination.
Figure 13 is the second dial portion 28 in Fig. 9 to Figure 12 and the sectional view at position of matching between the 3rd chi plate portion 39.
Figure 14 is I-shaped wheel 41 enlarged drawing in Figure 13.
Figure 15 is the partial enlarged drawing at slippage ball 80 position in Figure 13.
Figure 16 unloads the constitutional diagram except sliding pearl seat after half 82 in the pearl seat stepped hole 58 in Figure 15.
Figure 17 is the partial enlarged drawing of the outer half 82 of sliding pearl seat in Figure 15.
Figure 18 unloads the constitutional diagram except half 81 in sliding pearl seat and sliding pearl seat after half 82 in the pearl seat stepped hole 58 in Figure 15.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Figure 13 and Figure 14: the adjustable aluminum titanium alloy triangle teaching aid of wheel slideway corner pointer isoplanar, comprise the first identical portable plate 10, second portable plate 20 of three physical dimensions and the 3rd portable plate 30, every portable plate is made up of chi plate portion and dial portion;
First portable plate 10 is made up of the first chi plate portion 19 and the first dial portion 18, and the second portable plate 20 is made up of the second chi plate portion 29 and the second dial portion 28, and the 3rd portable plate 30 is made up of the 3rd chi plate portion 39 and the 3rd dial portion 38;
I-shaped slideway 14 on the first described chi plate portion 19 and between the wheel I-shaped cylindrical 45 on the 3rd dial portion 38 for coordinating by rolling slip, I-shaped slideway 14 on the second described chi plate portion 29 and between the wheel I-shaped cylindrical 45 on the first dial portion 18 for coordinating by rolling slip, I-shaped slideway 14 on the 3rd described chi plate portion 39 and between the wheel I-shaped cylindrical 45 on the second dial portion 28 for coordinating by rolling slip, as improvement:
The lower surface of described dial portion is slide plate lower plane 61, and the upper surface of described chi plate portion is plane 16 on the chi of limit; Slide plate lower plane 61 has and rotates through hole 108, limit chi plane 16 has chi plate stepped hole 109;
Slide plate lower plane 61 there is corner window 31, plane 16 has corner scale 13 with limit chi; Limit chi there is scale slope 15 inside plane 16, scale slope 15 is also engraved length scale 51;
Plane 16 there is I-shaped slideway 14 with limit chi, I-shaped slideway 14 and limit chi has transition to slot 71 between plane 16, bottom I-shaped slideway 14, has chute bottom surface 17, and the described single-ended opening of I-shaped slideway 14;
Slide plate lower plane 61 has step pivot pin 74, step pivot pin 74 has the outer section 78 of pivot pin, pivot pin is outer is pivot pin step 76 between section 78 and described step pivot pin 74, and outer section 78 outer end of described pivot pin is pivot pin outer end 75, and there is pivot pin screw 79 at center, pivot pin outer end 75;
I-shaped wheel 41 outer ring there is wheel I-shaped cylindrical 45, it is wheel medial surface 46 inside I-shaped wheel 41, wheel medial surface 46 there is wheel endoporus 47, I-shaped wheel 41 lateral surface has wheel stepped hole 42, between wheel stepped hole 42 and wheel endoporus 47, has wheel step surface 43;
Rotatablely on outer section 78 cylindrical of described pivot pin be combined with wheel endoporus 47, wheel medial surface 46 againsts described pivot pin step 76;
Described pivot pin screw 79 is combined with wheel screw 11, wheel screw 11 spiral shell brain againsts described pivot pin outer end 75, wheel screw 11 spiral shell brain blocks wheel step surface 43 simultaneously, wheel screw 11 exposes spiral shell brain and is positioned among described wheel stepped hole 42, and wheel screw 11 exposes between spiral shell brain and chute bottom surface 17 space;
Wheel I-shaped cylindrical 45 on described I-shaped wheel 41 outer ring and between described I-shaped slideway 14 for being slidably matched;
Pivot pin rivet 100 passes through successively and rotates through hole 108 and chi plate stepped hole 109, and pivot pin rivet 100 to be overlapped on the chi of limit in plane 16 by rotatable for slide plate lower plane 61; Described slide plate lower plane 61 is in sustained height with plane 16 on described limit chi;
Plane 16 has pearl seat stepped hole 58 with described limit chi, and pearl seat stepped hole 58 is arranged symmetrically in described I-shaped slideway 14 both sides, in pearl seat stepped hole 58, step has stepped hole plane 57, and there is pearl seat blind hole 59 at stepped hole plane 57 center; In sliding pearl seat, half 81 is measure-alike with outer half 82 shape and structure of sliding pearl seat, all include sliding pearl seat cylindrical 86, sliding pearl seat faying face 84, sliding pearl seat lateral surface 85, sliding pearl seat faying face 84 there is circular hole 88 in sliding pearl seat, in sliding pearl seat, circular hole 88 bottom is connected to sliding pearl seat internal taper hole 83 stub end, and the little head end of sliding pearl seat internal taper hole 83 is crossing with described sliding pearl seat lateral surface 85;
Described pearl seat stepped hole 58 inner circle is fixed wtih the sliding pearl seat cylindrical 86 in sliding pearl seat cylindrical 86 in sliding pearl seat in half 81 and the outer half 82 of sliding pearl seat simultaneously, the sliding pearl seat internal taper hole 83 in sliding pearl seat in half 81 and be slidably matched between the sliding pearl seat internal taper hole 83 sliding outside pearl seat in half 82 and be fixed wtih slippage ball 80; In sliding pearl seat lateral surface 85 on slippage ball 80 in outstanding described sliding pearl seat in half 81, outstanding sphere 98 is accommodated among described pearl seat blind hole 59; The outer outstanding sphere 89 of the sliding pearl seat lateral surface 85 on slippage ball 80 in the outer half 82 of outstanding described sliding pearl seat contacts with described slide plate lower plane 61;
The first described adjustable rule 10, second adjustable rule 20 and the 3rd adjustable rule 30 are all adopt aluminum alloy materials on the whole, described slide plate lower plane 61 there is a layer thickness be the hard aluminum titanium alloy coating of 0.24 to 0.26 millimeter, this hard aluminum titanium alloy material is made up of the element of following percentage by weight: Ti(titanium): 11 ~ 13%, W (tungsten): 5.7 ~ 5.9%, Cu(copper): 2.1 ~ 2.3%, Zn(zinc): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Al(aluminium) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.010%, P(phosphorus) be less than 0.015%.
As further improvement: the cylindrical value footpath of described I-shaped wheel 41 is 3.7 to 3.9 millimeters, the inner circle value footpath of wheel endoporus 47 is 1.4 to 1.6 millimeters, and the depth dimensions between I-shaped wheel 41 lateral surface to wheel step surface 43 is 2.1 to 2.3 millimeters.
As further improvement: the angle on described scale slope 15 and limit chi between plane 16 is 38 ~ 40 degree.
As further improvement: described length scale 51 texture depth is 0.18 to 0.20 millimeter.
As further improvement: there is stepped hole angle face 102 chi plate stepped hole 109 both sides, the angle between the stepped hole angle face 102 of both sides is 48 to 50 degree.
In embodiment, the material composition of hard aluminum titanium alloy is: Ti(titanium): 12%, W (tungsten): 5.8%, Cu(copper): 2.2%, Zn(zinc): 1.5%, C(carbon): 1.2%, surplus is Al(aluminium) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be 0.04%, Si(silicon) be 0.16%, Mn(manganese) be 0.22%, S(sulphur) be 0.007%, P(phosphorus) be 0.012%; The Specifeca tion speeification of hard aluminum titanium alloy material is: Rockwell's hardness HRC value is 49, and density is 2.96 grams every cubic centimetre.
The cylindrical value footpath of I-shaped wheel 41 is 3.8 millimeters, and the inner circle value footpath of wheel endoporus 47 is 1.5 millimeters, and the depth dimensions between I-shaped wheel 41 lateral surface to wheel step surface 43 is 2.2 millimeters.
Angle on scale slope 15 and limit chi between plane 16 is 39 degree, length scale 51 texture depth 0.19 millimeter, adopts electric pulse processing to generate.
There is stepped hole angle face 102 chi plate stepped hole 109 both sides, and the angle between the stepped hole angle face 102 of both sides is 49 degree.
Angle between rotating disk chamfering 103 and slide plate lower plane 61 is 44 degree.
In Figure 13, Figure 15, Figure 16, Figure 17 and Figure 18: mounting slip ball 80 in 40 pearl seat stepped holes 58 on the chi of limit in plane 16, adopt following steps:
One, half 81 in sliding pearl seat is placed in the low temperature chest of subzero 125 degree of Celsius temperature together with the outer half 82 of sliding pearl seat, continues 55 minutes, make half 81 and the outer half 82 of sliding pearl seat in sliding pearl seat cool rear size and reduce;
Two, first by slide plate lower plane 61 upward, successively half 81 in cunning pearl seat is arranged in pearl seat stepped hole 58 again, the sliding pearl seat lateral surface 85 in the sliding pearl seat in each pearl seat stepped hole 58 in half 81 is made to touch stepped hole plane 57, when in sliding pearl seat, half 81 returns to normal temperature state, the sliding pearl seat cylindrical 86 in sliding pearl seat in half 81 and have between pearl seat stepped hole 58 0.04 to 0.06 interference fit;
Three, successively slippage ball 80 to be placed in the sliding pearl seat in each sliding pearl seat in half 81 among circular hole 88;
Four, successively outer for cunning pearl seat half 82 is arranged in pearl seat stepped hole 58, make the sliding pearl seat faying face 84 in the outer half 82 of sliding pearl seat touch sliding pearl seat faying face 84 in sliding pearl seat in half 81, slippage ball 80 rides in the sliding pearl seat internal taper hole 83 in sliding pearl seat in half 81 and slides half 82 outside pearl seat and makes to slide spacing rolling between pearl seat internal taper hole 83; When the outer half 82 of sliding pearl seat returns to normal temperature state, sliding pearl seat cylindrical 86 in the outer half 82 of sliding pearl seat and have between pearl seat stepped hole 58 0.04 to 0.06 interference fit, on the sliding pearl seat lateral surface 85 in the outer half 82 of sliding pearl seat and described limit chi, plane 16 is fair.
When will carry out teaching differentiation to student, step is as follows:
One, in Fig. 9, develop into equilateral triangle after the present invention will being combined, only the chi plate portion in every portable plate need be done relative rotation with dial portion, by the corner pointer 31 on slide plate lower plane 61 back side, the corner scale 13 observed on the chi of limit in plane 16 have rotated 30 degree
Form line between two I-shaped wheels 41 on the dial portion of i.e. every portable plate self, the line between these two I-shaped wheels 41 and the angle between the I-shaped slideway 14 of self develop into 60 by 90 degree of rotations; Scale slope 15 then on the first chi plate portion 19 and the scale slope 15 on the second chi plate portion 29 and the angle between the scale slope 15 on the 3rd chi plate portion 39 are all 60 degree, and equilateral triangle is set up.
Two, Tu10Zhong, isosceles triangle is developed into after the present invention will being combined, only the chi plate portion in wherein two portable plates need be done the identical anglec of rotation with dial portion, such as: the anglec of rotation the 3rd chi plate portion 39 and the 3rd dial portion 38 being done counterclockwise 15 degree, second chi plate portion 29 and the second dial portion 28 are also done counterclockwise the anglec of rotation of 15 degree, then the first chi plate portion 19 and the first dial portion 18 necessarily do the anglec of rotation of 60 degree counterclockwise, and the equilateral triangle that interior angle is respectively 75 degree and 75 degree and 30 degree is set up.
Three, Tu11Zhong, right-angle triangle is developed into after the present invention will being combined, only the chi plate portion in a wherein portable plate and dial portion need be kept centering position non rotating, such as: the second chi plate portion 29 and the second dial portion 28 are kept centering position non rotating, when the 3rd chi plate portion 39 and the 3rd dial portion 38 do the anglec of rotation of 60 degree counterclockwise, then the first chi plate portion 19 and the first dial portion 18 necessarily do the anglec of rotation of 30 degree counterclockwise, and the right-angle triangle that interior angle is respectively 90 degree and 30 degree and 60 degree is set up.
Four, in Figure 12, isosceles right triangle is developed into after the present invention will being combined, only the chi plate portion in a wherein portable plate and dial portion need be kept centering position non rotating, chi plate portion in other two portable plates and all equidirectional anglec of rotation doing 45 degree of dial portion, such as: the second chi plate portion 29 and the second dial portion 28 are kept centering position non rotating, 3rd chi plate portion 39 and the 3rd dial portion 38 are done counterclockwise the anglec of rotation of 45 degree, second chi plate portion 29 and the second dial portion 28 are also done counterclockwise the anglec of rotation of 45 degree, the isosceles right triangle that then interior angle is respectively 90 degree and 45 degree and 45 degree is set up.
The above-mentioned outstanding substantive distinguishing features of the present invention, has following significant progressive effect:
One, dial portion is positioned at chi plate portion one end and is overlapped on plane on chi plate portion, and slide plate lower plane 61 is in sustained height with plane 16 on the chi of limit, guarantees that the length scale 51 on three limits is all in same level, avoids error on line of sight; And the I-shaped wheel 41 on every portable plate and between the I-shaped slideway 14 on adjacent activities plate for being slidably matched, particularly plane 16 there is limit chi corner scale 13 corresponding in position with the corner pointer 31 on slide plate lower plane 61 back side, convenient, intuitively between control dial portion and chi plate portion the anglec of rotation can be accomplished; Pearl seat stepped hole 58 internal fixtion particularly on the chi of limit in plane 16 slippage ball 80; The outer outstanding sphere 89 of slippage ball 80 contacts with described slide plate lower plane 61, makes plane 16 on the limit chi in each portable plate more easily smooth relative to slippage between the slide plate lower plane 61 in another portable plate.
Two, the present invention adopts the portable composite construction of three group, disassembles, the size that takes up room is little, is easy to carry after convenient each use.
Three, education activities plate provided by the present invention, has structure simple, easy to use, demonstrates the advantages such as size, angle are changeable simultaneously.
Four, the present invention's entirety adopts aluminum alloy materials, and slide plate lower plane 61 is electroplate with hard aluminum titanium alloy, has lightweight and that wearing quality is strong two-fold advantage.
In addition, teacher is when doing demonstration explanation to student, disposable continuous differentiation puts in place, more vividly understandable, makes student more have enjoyment in learning process.Multiple set square is not needed to demonstrate, do not need on blackboard, repeatedly draw not of uniform size, that angle is different triangle yet, to reduce measuring error and to improve efficiency of teaching.
Claims (5)
1. the adjustable aluminum titanium alloy triangle in wheel slideway corner pointer isoplanar teaching aid, comprise the first portable plate (10), the second portable plate (20) and the 3rd portable plate (30) that three physical dimensions are identical, every portable plate is made up of chi plate portion and dial portion, first portable plate (10) is made up of the first chi plate portion (19) and the first dial portion (18), second portable plate (20) is made up of the second chi plate portion (29) and the second dial portion (28), and the 3rd portable plate (30) is made up of the 3rd chi plate portion (39) and the 3rd dial portion (38), I-shaped slideway (14) on the first described chi plate portion (19) with between the wheel I-shaped cylindrical (45) on the 3rd dial portion (38) for coordinating by rolling slip, I-shaped slideway (14) on the second described chi plate portion (29) and between the wheel I-shaped cylindrical (45) on the first dial portion (18) for coordinating by rolling slip, I-shaped slideway (14) on the 3rd described chi plate portion (39) and between the wheel I-shaped cylindrical (45) on the second dial portion (28) for coordinating by rolling slip, it is characterized in that:
The lower surface of described dial portion is slide plate lower plane (61), and the upper surface of described chi plate portion is plane (16) on the chi of limit; Slide plate lower plane (61) there is rotation through hole (108), plane (16) has chi plate stepped hole (109) with limit chi; Slide plate lower plane (61) there is corner window (31), plane (16) has corner scale (13) with limit chi; On the chi of limit, there is scale slope (15) plane (16) inner side, scale slope (15) also engraves length scale (51); Plane (16) there is I-shaped slideway (14) with limit chi, I-shaped slideway (14) and limit chi there is transition to slot (71) between plane (16), chute bottom surface (17) is arranged at I-shaped slideway (14) bottom, and described I-shaped slideway (14) single-ended opening; Slide plate lower plane (61) there is step pivot pin (74), step pivot pin (74) there is the outer section (78) of pivot pin, pivot pin is outer is pivot pin step (76) between section (78) and described step pivot pin (74), outer section (78) outer end of described pivot pin is pivot pin outer end (75), and there is pivot pin screw (79) at pivot pin outer end (75) center; I-shaped wheel (41) outer ring there is wheel I-shaped cylindrical (45), I-shaped wheel (41) inner side is wheel medial surface (46), wheel medial surface (46) there is wheel endoporus (47), I-shaped wheel (41) lateral surface there is wheel stepped hole (42), between wheel stepped hole (42) and wheel endoporus (47), have wheel step surface (43);
Rotatablely on outer section (78) cylindrical of described pivot pin be combined with wheel endoporus (47), wheel medial surface (46) againsts described pivot pin step (76); Described pivot pin screw (79) is combined with wheel screw (11), wheel screw (11) spiral shell brain againsts described pivot pin outer end (75), wheel screw (11) spiral shell brain blocks wheel step surface (43) simultaneously, wheel screw (11) exposes spiral shell brain and is positioned among described wheel stepped hole (42), and wheel screw (11) exposes between spiral shell brain and chute bottom surface (17) space; Wheel I-shaped cylindrical (45) on described I-shaped wheel (41) outer ring and between described I-shaped slideway (14) for being slidably matched;
Pivot pin rivet (100) passes through successively and rotates through hole (108) and chi plate stepped hole (109), and pivot pin rivet (100) to be overlapped on the chi of limit in plane (16) by rotatable for slide plate lower plane (61); Described slide plate lower plane (61) is in sustained height with plane (16) on described limit chi;
Plane (16) there is pearl seat stepped hole (58) with described limit chi, pearl seat stepped hole (58) is arranged symmetrically in described I-shaped slideway (14) both sides, pearl seat stepped hole (58) interior step has stepped hole plane (57), there is pearl seat blind hole (59) at stepped hole plane (57) center; In cunning pearl seat, half (82) shape and structure is measure-alike outward for half (81) and sliding pearl seat, all include sliding pearl seat cylindrical (86), sliding pearl seat faying face (84), sliding pearl seat lateral surface (85), sliding pearl seat faying face (84) there is circular hole (88) in sliding pearl seat, in sliding pearl seat, circular hole (88) bottom is connected to sliding pearl seat internal taper hole (83) stub end, and sliding pearl seat internal taper hole (83) little head end is crossing with described sliding pearl seat lateral surface (85);
Described pearl seat stepped hole (58) inner circle is fixed wtih the sliding pearl seat cylindrical (86) in sliding pearl seat cylindrical (86) in sliding pearl seat in half (81) and the outer half (82) of sliding pearl seat simultaneously, the sliding pearl seat internal taper hole (83) in sliding pearl seat in half (81) and be slidably matched between the sliding pearl seat internal taper hole (83) sliding outside pearl seat in half (82) and be fixed wtih slippage ball (80); The inner outstanding sphere (98) of sliding pearl seat lateral surface (85) in the upper outstanding described sliding pearl seat of slippage ball (80) in half (81) is accommodated among described pearl seat blind hole (59); The outer outstanding sphere (89) of the sliding pearl seat lateral surface (85) in the outer half (82) of the upper outstanding described sliding pearl seat of slippage ball (80) contacts with described slide plate lower plane (61);
Described the first adjustable rule (10), the second adjustable rule (20) and the 3rd adjustable rule (30) are all adopt aluminum alloy materials on the whole, described slide plate lower plane (61) there is a layer thickness be the hard aluminum titanium alloy coating of 0.24 to 0.26 millimeter, this hard aluminum titanium alloy material is made up of the element of following percentage by weight: Ti(titanium): 11 ~ 13%, W (tungsten): 5.7 ~ 5.9%, Cu(copper): 2.1 ~ 2.3%, Zn(zinc): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Al(aluminium) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.010%, P(phosphorus) be less than 0.015%.
2. the adjustable aluminum titanium alloy triangle in wheel slideway corner pointer isoplanar teaching aid, it is characterized in that: the cylindrical value footpath of described I-shaped wheel (41) is 3.7 to 3.9 millimeters, the inner circle value footpath of wheel endoporus (47) is 1.4 to 1.6 millimeters, and the depth dimensions between I-shaped wheel (41) lateral surface to wheel step surface (43) is 2.1 to 2.3 millimeters.
3. the wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid according to claim 1, is characterized in that: the angle on described scale slope (15) and limit chi between plane (16) is 38 ~ 40 degree.
4. the wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid according to claim 1, is characterized in that: described length scale (51) texture depth is 0.18 to 0.20 millimeter.
5. the wheel slideway corner pointer isoplanar adjustable aluminum titanium alloy triangle teaching aid according to claim 1, it is characterized in that: there is stepped hole angle face (102) chi plate stepped hole (109) both sides, the angle between the stepped hole angle face (102) of both sides is 48 to 50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510789641.4A CN105336249A (en) | 2015-11-17 | 2015-11-17 | Co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510789641.4A CN105336249A (en) | 2015-11-17 | 2015-11-17 | Co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105336249A true CN105336249A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510789641.4A Withdrawn CN105336249A (en) | 2015-11-17 | 2015-11-17 | Co-planar adjustable aluminum titanium alloy triangular teaching aid for rotation angle pointers of wheel slide ways |
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| Country | Link |
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| CN (1) | CN105336249A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675393A (en) * | 2016-03-05 | 2016-06-15 | 温州经济技术开发区滨海雄杰机电研发工作室 | Fixed clamp for circumferences of corners of cone spring and nut of slide way of titanium alloy wheel |
| CN105758712A (en) * | 2016-04-28 | 2016-07-13 | 晋江市池店镇筱秋电工机械专用设备设计工作室 | Glass detecting frame with worm wheel aperture linked camera shooting chromium alloy wheel slide way corner clamp |
| CN105890985A (en) * | 2016-04-28 | 2016-08-24 | 晋江市池店镇筱秋电工机械专用设备设计工作室 | Glass detection rack with gears, light rings, linkage photography functions, chromium alloy wheels, slide rails and corner fixtures |
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| JPS63132790U (en) * | 1987-02-24 | 1988-08-30 | ||
| CN2282989Y (en) * | 1997-02-24 | 1998-06-03 | 李正雄 | Rule for basic mathematics |
| CN103688131A (en) * | 2011-01-18 | 2014-03-26 | R·K·斯瓦密 | A multipupurpose instrument for triangle solutions, measurements and geometrical applications called triometer |
| CN204423753U (en) * | 2014-12-26 | 2015-06-24 | 湖州市吴兴实验中学 | A kind of intersecting chord theorem inference teaching aid |
| CN104997513A (en) * | 2015-08-12 | 2015-10-28 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Medical zirconia measuring gauge provided with wheel slides and capable of realizing four coplanar edges |
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| JPS63132790U (en) * | 1987-02-24 | 1988-08-30 | ||
| CN2282989Y (en) * | 1997-02-24 | 1998-06-03 | 李正雄 | Rule for basic mathematics |
| CN103688131A (en) * | 2011-01-18 | 2014-03-26 | R·K·斯瓦密 | A multipupurpose instrument for triangle solutions, measurements and geometrical applications called triometer |
| CN204423753U (en) * | 2014-12-26 | 2015-06-24 | 湖州市吴兴实验中学 | A kind of intersecting chord theorem inference teaching aid |
| CN104997513A (en) * | 2015-08-12 | 2015-10-28 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Medical zirconia measuring gauge provided with wheel slides and capable of realizing four coplanar edges |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675393A (en) * | 2016-03-05 | 2016-06-15 | 温州经济技术开发区滨海雄杰机电研发工作室 | Fixed clamp for circumferences of corners of cone spring and nut of slide way of titanium alloy wheel |
| CN105758712A (en) * | 2016-04-28 | 2016-07-13 | 晋江市池店镇筱秋电工机械专用设备设计工作室 | Glass detecting frame with worm wheel aperture linked camera shooting chromium alloy wheel slide way corner clamp |
| CN105890985A (en) * | 2016-04-28 | 2016-08-24 | 晋江市池店镇筱秋电工机械专用设备设计工作室 | Glass detection rack with gears, light rings, linkage photography functions, chromium alloy wheels, slide rails and corner fixtures |
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Application publication date: 20160217 |
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