CN105280058A - Triangle instrument which is provided with aluminium-chromium alloy step slot corner pointer and is adjustable in the same plane - Google Patents

Triangle instrument which is provided with aluminium-chromium alloy step slot corner pointer and is adjustable in the same plane Download PDF

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Publication number
CN105280058A
CN105280058A CN201510789647.1A CN201510789647A CN105280058A CN 105280058 A CN105280058 A CN 105280058A CN 201510789647 A CN201510789647 A CN 201510789647A CN 105280058 A CN105280058 A CN 105280058A
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pearl seat
plane
chi
sliding pearl
sliding
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CN201510789647.1A
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陈俞任
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Abstract

The invention relates to a special triangle instrument for the teaching field, and specifically relates to a triangle instrument which is provided with an aluminium-chromium alloy step slot corner pointer and is adjustable in the same plane. As the improvement, an upper contour of a rotary disk is provided with an arched convex beam; an upper plane of an edge scale is provided with a step convex trail; a transition convex bar is arranged between the step convex trail and the upper plane of the edge scale, and is centrosymmetric; a step groove is formed in a lower plane of a sliding plate; a transition groove is arranged between the step groove and the lower plane of the sliding plate, and is centrosymmetric; ball base step holes are formed in the lower plane of the sliding plate, and are symmetrically arranged at two sides of the transition groove; the outer protruding sphere of the outer side surface of a sliding ball base on an outer half piece of the sliding ball base on the sliding ball touches the upper plane of the edge scale sliding plate; the step groove on each movable plate is slidingly coordinated with the step convex trail on the adjacent movable plate; and specifically on the upper plane corner scales of the edge scale are corresponding to a corner pointer on the back of the lower plane of the sliding plate on the location so that the rotation angle between the rotary disk part and the scale plate part can be controlled conveniently and visually.

Description

Aluminum chromium step trough corner pointer isoplanar is adjustable demonstration triple-angle
Technical field
The present invention relates to a kind of upper special triple-angle of imparting knowledge to students, International Classification of Patents is B43L, particularly relates to the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar.
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 successive incremental tiers protruding rail, triple-angle is carried out to the design of isoplanar free of discontinuities adjustment, achieve the angle that sizes is different, aluminum chromium step trough corner pointer isoplanar adjustable demonstration triple-angle one step can be shared and accurately put in place.Specific as follows:
Aluminum chromium step trough corner pointer isoplanar is adjustable demonstration triple-angle, 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; Ladder protruding rail on the first described chi plate portion and between the step groove on the 3rd dial portion for being slidably matched, ladder protruding rail on the second described chi plate portion and between the step groove on the first dial portion for being slidably matched, ladder protruding rail on the 3rd described chi plate portion and between the step groove on the second dial portion for being slidably matched, as improvement:
The upper profile of described dial portion has the convex beam of arch, and 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 slippage through hole, limit chi plane has chi plate stepped hole; Plane there is ladder protruding rail with limit chi, and ladder protruding rail and limit chi have centrosymmetric transition raised line between plane; Slide plate lower plane there is step groove, and has centrosymmetric transition groove between step groove and slide plate lower plane; Plane has corner scale with limit chi, and described dial portion has rotating disk chamfering, rotating disk chamfering has corner pointer; On the chi of limit, planar inner has scale slope, and length scale is also engraved on scale slope;
Pivot pin rivet passes through slippage through hole and chi plate stepped hole successively, and pivot pin rivet is overlapped on the chi of limit in plane by rotatable for slide plate lower plane, and on described slide plate lower plane and described limit chi, plane is in sustained height;
Described slide plate lower plane has pearl seat stepped hole, pearl seat stepped hole is arranged symmetrically in described transition groove 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; Plane contact on the outer outstanding sphere of the sliding pearl seat lateral surface of sliding pearl seat outstanding described on slippage ball outward in half and described limit chi;
The first described adjustable rule, second adjustable rule and the 3rd adjustable rule are all adopt aluminum alloy materials on the whole, plane there is described limit chi a layer thickness be the hard aluminum chromium coating of 0.21 to 0.23 millimeter, this hard aluminum chromium material is made up of the element of following percentage by weight: Cr(chromium): 22.6 ~ 22.8%, W(tungsten): 5.2 ~ 5.4%, Mn(manganese): 3.2 ~ 3.4%, Ti(titanium): 2.6 ~ 2.8%, Mo(molybdenum): 1.2 ~ 1.4%, Nb(niobium): 1.1 ~ 1.3%, C(carbon): 1.0 ~ 1.2%, 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%, S(sulphur) be less than 0.012%, P(phosphorus) be less than 0.015%.
As further improvement: on described limit chi, plane is 21 to 23 millimeters to the distance of described step protruding rail top plane, step protruding rail local width is 17 to 19 millimeters, the width of described transition raised line is 6 to 8 millimeters, the height of described transition raised line is 11 to 13 millimeters, and the described single-ended opening of step protruding rail; Described slide plate lower plane is 21 to 23 millimeters to the distance of described step groove-bottom plane, step groove local width is 17 to 19 millimeters, the width of described transition groove is 7 to 9 millimeters, and the height of described transition groove is 11 to 13 millimeters, and described step groove both ends open.
As further improvement: the upper surface of described dial portion has the distance between arch convex beam peak to slide plate lower plane to be 14 to 16 millimeters.
As further improvement: the angle on described scale slope and limit chi between plane is 47 ~ 49 degree.
As further improvement: described length scale texture depth 0.24 to 0.26 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 55 to 57 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 step groove on every portable plate and between the ladder protruding rail 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 slide plate lower plane slippage ball; Plane contact on the outer outstanding sphere of slippage ball and described limit chi, make the slide plate lower plane in each portable plate relative on the limit chi in another portable plate between plane slippage more easily smooth.
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 plane is electroplate with hard aluminum chromium with limit chi, 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 the partial enlarged drawing at slippage ball 80 position in Figure 13.
Figure 15 unloads the constitutional diagram except sliding pearl seat after half 82 in the pearl seat stepped hole 58 in Figure 14.
Figure 16 is the partial enlarged drawing of the outer half 82 of sliding pearl seat in Figure 14.
Figure 17 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 14.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8,13 and Figure 14 in: aluminum chromium step trough corner pointer isoplanar is adjustable demonstration triple-angle, 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; Ladder protruding rail 14 on the first described chi plate portion 19 and between the step groove 41 on the 3rd dial portion 38 for being slidably matched, ladder protruding rail 14 on the second described chi plate portion 29 and between the step groove 41 on the first dial portion 18 for being slidably matched, ladder protruding rail 14 on the 3rd described chi plate portion 39 and between the step groove 41 on the second dial portion 28 for being slidably matched, as improvement:
The upper profile of described dial portion has the convex beam 94 of arch, and 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 slippage through hole 108, limit chi plane 16 has chi plate stepped hole 109; Plane 16 there is ladder protruding rail 14 with limit chi, and ladder protruding rail 14 and limit chi have centrosymmetric transition raised line 71 between plane 16; Slide plate lower plane 61 there is step groove 41, and between step groove 41 and slide plate lower plane 61, have centrosymmetric transition groove 74; Plane 16 has corner scale 13 with limit chi, and described dial portion has rotating disk chamfering 103, rotating disk chamfering 103 has corner pointer 31; Limit chi there is scale slope 15 inside plane 16, scale slope 15 is also engraved length scale 51;
Pivot pin rivet 100 passes through slippage through hole 108 and chi plate stepped hole 109 successively, and pivot pin rivet 100 is overlapped on the chi of limit in plane 16 by rotatable for slide plate lower plane 61, and described slide plate lower plane 61 is in sustained height with plane 16 on described limit chi;
Described slide plate lower plane 61 has pearl seat stepped hole 58, pearl seat stepped hole 58 is arranged symmetrically in described transition groove 74 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 plane 16 on described limit chi;
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, plane 16 there is described limit chi a layer thickness be the hard aluminum chromium coating of 0.21 to 0.23 millimeter, this hard aluminum chromium material is made up of the element of following percentage by weight: Cr(chromium): 22.6 ~ 22.8%, W(tungsten): 5.2 ~ 5.4%, Mn(manganese): 3.2 ~ 3.4%, Ti(titanium): 2.6 ~ 2.8%, Mo(molybdenum): 1.2 ~ 1.4%, Nb(niobium): 1.1 ~ 1.3%, C(carbon): 1.0 ~ 1.2%, 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%, S(sulphur) be less than 0.012%, P(phosphorus) be less than 0.015%.
As further improvement: the distance that on described limit chi, plane 16 pushes up plane to described step protruding rail 14 is 21 to 23 millimeters, step protruding rail 14 local width is 17 to 19 millimeters, the width of described transition raised line 71 is 6 to 8 millimeters, the height of described transition raised line 71 is 11 to 13 millimeters, and the described single-ended opening of step protruding rail 14;
Described slide plate lower plane 61 is 21 to 23 millimeters to the distance of described step groove 41 baseplane, step groove 41 local width is 17 to 19 millimeters, the width of described transition groove 74 is 7 to 9 millimeters, the height of described transition groove 74 is 11 to 13 millimeters, and described step groove 41 both ends open.
As further improvement: the upper surface of described dial portion has the distance between arch convex beam 94 peak to slide plate lower plane 61 to be 14 to 16 millimeters.
As further improvement: the angle on described scale slope 15 and limit chi between plane 16 is 47 ~ 49 degree.
As further improvement: described length scale 51 texture depth 0.24 to 0.26 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 55 to 57 degree.
In embodiment, plane 16 there is described limit chi a layer thickness be the hard aluminum chromium coating of 0.22 millimeter, this hard aluminum chromium material is made up of the element of following percentage by weight: Cr(chromium): 22.7%, W(tungsten): 5.3%, Mn(manganese): 3.3%, Ti(titanium): 2.7%, Mo(molybdenum): 1.3%, Nb(niobium): 1.2%, C(carbon): 1.1%, surplus is Al(aluminium) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be 0.04%, Si(silicon) be 0.17%, S(sulphur) be 0.011%, P(phosphorus) be 0.012%; The Specifeca tion speeification of described hard aluminum chromium material is: Rockwell's hardness HRC value is 45, and density is 2.92 grams every cubic centimetre.
The upper surface of dial portion has the distance between arch convex beam 94 peak to slide plate lower plane 61 to be 15 millimeters; On described limit chi, plane 16 to described step protruding rail 14 pushes up the distance of plane is 22 millimeters, and step protruding rail 14 local width is 18 millimeters, and the width of described transition raised line 71 is 7 millimeters, and the height of described transition raised line 71 is 12 millimeters;
Described slide plate lower plane 61 is 22 millimeters to the distance of described step groove 41 baseplane, and step groove 41 local width is 18 millimeters, and the width of described transition groove 74 is 8 millimeters, and the height of described transition groove 74 is 12 millimeters.
Angle on scale slope 15 and limit chi between plane 16 is 48 degree, length scale 51 texture depth 0.25 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 56 degree.
Angle between rotating disk chamfering 103 and slide plate lower plane 61 is 45 degree.
In Figure 13, Figure 14, Figure 15, Figure 16 and Figure 17: mounting slip ball 80 in eight pearl seat stepped holes 58 on slide plate lower plane 61, 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, the sliding pearl seat lateral surface 85 in the outer half 82 of sliding pearl seat and described slide plate lower plane 61 fair.
When will carry out teaching differentiation to student, step is as follows:
One, in Fig. 9, equilateral triangle is developed into 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, namely 60 are developed into by 90 degree of rotations between the ladder protruding rail 14 of every portable plate self and step groove 41, 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, 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 step groove 41 on every portable plate and between the ladder protruding rail 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 slide plate lower plane 61 slippage ball 80; The outer outstanding sphere 89 of slippage ball 80 contacts with plane 16 on described limit chi, make the slide plate lower plane 61 in each portable plate relative on the limit chi in another portable plate between plane 16 slippage more easily smooth.
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 plane 16 is electroplate with hard aluminum chromium with limit chi, 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 (6)

1. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar, 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); Ladder protruding rail (14) on the first described chi plate portion (19) and between the step groove (41) on the 3rd dial portion (38) for being slidably matched, ladder protruding rail (14) on the second described chi plate portion (29) and between the step groove (41) on the first dial portion (18) for being slidably matched, ladder protruding rail (14) on the 3rd described chi plate portion (39) and between the step groove (41) on the second dial portion (28) for being slidably matched, it is characterized in that:
The upper profile of described dial portion has the convex beam of arch (94), and 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 slippage through hole (108), plane (16) has chi plate stepped hole (109) with limit chi; Plane (16) there is ladder protruding rail (14) with limit chi, and ladder protruding rail (14) and limit chi have centrosymmetric transition raised line (71) between plane (16); Slide plate lower plane (61) there is step groove (41), and have centrosymmetric transition groove (74) between step groove (41) and slide plate lower plane (61); Plane (16) has corner scale (13) with limit chi, and described dial portion has rotating disk chamfering (103), rotating disk chamfering (103) has corner pointer (31); On the chi of limit, there is scale slope (15) plane (16) inner side, scale slope (15) also engraves length scale (51);
Pivot pin rivet (100) passes through slippage through hole (108) and chi plate stepped hole (109) successively, pivot pin rivet (100) is overlapped on the chi of limit in plane (16) by rotatable for slide plate lower plane (61), and described slide plate lower plane (61) is in sustained height with plane (16) on described limit chi;
Described slide plate lower plane (61) there is pearl seat stepped hole (58), pearl seat stepped hole (58) is arranged symmetrically in described transition groove (74) 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 plane (16) on described limit chi;
Described the first adjustable rule (10), second adjustable rule (20) and the 3rd adjustable rule (30) are all adopt aluminum alloy materials on the whole, plane (16) there is described limit chi a layer thickness be the hard aluminum chromium coating of 0.21 to 0.23 millimeter, this hard aluminum chromium material is made up of the element of following percentage by weight: Cr(chromium): 22.6 ~ 22.8%, W(tungsten): 5.2 ~ 5.4%, Mn(manganese): 3.2 ~ 3.4%, Ti(titanium): 2.6 ~ 2.8%, Mo(molybdenum): 1.2 ~ 1.4%, Nb(niobium): 1.1 ~ 1.3%, C(carbon): 1.0 ~ 1.2%, 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%, S(sulphur) be less than 0.012%, P(phosphorus) be less than 0.015%.
2. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar according to claim 1, it is characterized in that: on described limit chi, plane (16) is 21 to 23 millimeters to the distance of described step protruding rail (14) top plane, step protruding rail (14) local width is 17 to 19 millimeters, the width of described transition raised line (71) is 6 to 8 millimeters, the height of described transition raised line (71) is 11 to 13 millimeters, and described step protruding rail (14) single-ended opening; Described slide plate lower plane (61) is 21 to 23 millimeters to the distance of described step groove (41) baseplane, step groove (41) local width is 17 to 19 millimeters, the width of described transition groove (74) is 7 to 9 millimeters, the height of described transition groove (74) is 11 to 13 millimeters, and described step groove (41) both ends open.
3. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar according to claim 1, is characterized in that: the upper surface of described dial portion has the distance between the convex beam of arch (94) peak to slide plate lower plane (61) to be 14 to 16 millimeters.
4. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar according to claim 1, is characterized in that: the angle on described scale slope (15) and limit chi between plane (16) is 47 ~ 49 degree.
5. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar according to claim 1, is characterized in that: described length scale (51) texture depth 0.24 to 0.26 millimeter.
6. the adjustable demonstration triple-angle in aluminum chromium step trough corner pointer isoplanar 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 55 to 57 degree.
CN201510789647.1A 2015-11-17 2015-11-17 Triangle instrument which is provided with aluminium-chromium alloy step slot corner pointer and is adjustable in the same plane Withdrawn CN105280058A (en)

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CN105910887A (en) * 2016-04-09 2016-08-31 温州经济技术开发区滨海雄杰机电研发工作室 Glass detection apparatus with handle-mounted rotary table, aperture shooting assembly and zinc alloy wheel corner leaning clamp assembly
CN105865900A (en) * 2016-04-28 2016-08-17 张筱秋 Glass detection equipment adopting disk wheel and halo linkage camera shooting and nickel alloy circular orbit corner splint
CN105865899A (en) * 2016-04-28 2016-08-17 张筱秋 Worm gear halo linkage camera manganese alloy inclined chute corner abutment pliers glass detector
CN105865945A (en) * 2016-04-28 2016-08-17 张筱秋 Handle halo linkage camera titanium alloy step track corner press plate glass detection platform
CN105910889A (en) * 2016-04-28 2016-08-31 张志雄 Glass detector based on plate-wheel halo linkage camera shooting and molybdenum alloy bevel sliding-groove corner clamps
CN105891024A (en) * 2016-06-01 2016-08-24 泉州台商投资区杰雄机械设备设计室 Glass detection device adopting impact combination of nickel alloy rack, light ring, hydraulic turning plate and wheel clamping plate
CN105890986A (en) * 2016-06-01 2016-08-24 泉州台商投资区杰雄机械设备设计室 Chromium alloy rack impact combination polished ring handle turning plate bevel backup plate glass detection device
CN105910926A (en) * 2016-06-01 2016-08-31 泉州台商投资区杰雄机械设备设计室 Copper alloy rack impact combined light ring worm gear turnover plate bearing fixture glass detection device
CN105891023A (en) * 2016-06-01 2016-08-24 泉州台商投资区杰雄机械设备设计室 Glass detection machine frame adopting impact combination of molybdenum alloy rack, light ring, plate wheel, turning plate and ladder butting clamp
CN105891026A (en) * 2016-06-01 2016-08-24 泉州台商投资区杰雄机械设备设计室 Glass detection device adopting impact combination of titanium-alloy light ring, handle, rotary handle and ladder clamping plate
CN105954123A (en) * 2016-06-01 2016-09-21 泉州台商投资区杰雄机械设备设计室 Glass detecting system with titanium alloy rack impact combined with polish ring, gear turnover plate and circular rail pressing plates
CN105954097A (en) * 2016-06-01 2016-09-21 泉州台商投资区杰雄机械设备设计室 Glass detection machine with nickel alloy impact assembly combined with light ring component, worm wheel testing rotary table and inclined face leaning clamp assembly
CN105954125A (en) * 2016-06-01 2016-09-21 泉州台商投资区杰雄机械设备设计室 Glass detecting equipment with copper alloy impacting combined with polish ring, plate wheel rotary table and round pressing plates
CN105890987A (en) * 2016-06-01 2016-08-24 泉州台商投资区杰雄机械设备设计室 Chromium alloy impact combination polished ring gear rotary table wheel backup clamp glass detection device
CN106092783A (en) * 2016-06-01 2016-11-09 泉州台商投资区杰雄机械设备设计室 Molybdenum alloy combined impulse ring of light hydraulic swivel bearing fixture glass detection framework

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Application publication date: 20160127