CN105054937A - Silicon carbide medical cursor with inclined grooves in four sides and retractable slide ball - Google Patents
Silicon carbide medical cursor with inclined grooves in four sides and retractable slide ball Download PDFInfo
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- CN105054937A CN105054937A CN201510491252.3A CN201510491252A CN105054937A CN 105054937 A CN105054937 A CN 105054937A CN 201510491252 A CN201510491252 A CN 201510491252A CN 105054937 A CN105054937 A CN 105054937A
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Abstract
The invention relates to a medical special measuring tool, in particular to a silicon carbide medical cursor with inclined grooves in four sides and a retractable slide ball. As an improvement, the lower surface of a slide part is a slide lower plane, trapezoid protruding grooves are formed in the slide lower plane, the upper surface of a scale part is a scale upper plane, and trapezoid grooves are formed in the scale upper plane; a scale slope is arranged on the inner side of the scale upper plane and engraved with length scales; a ball base stepped hole is formed in the scale upper plane, a slide ball base outer circle of a slide ball base inner half piece and a slide ball base outer circle on a slide ball base outer half piece are fixed by the inner circle of the ball base step hole at the same time, and the slide ball is fixed between a slide ball base inner conical hole of the slide ball base inner half piece and a slide ball base inner conical hole of the slide ball base outer half piece in a sliding fit mode; the outwards-protruding ball face part, protruding out of the slide ball base outer side face of the slide ball base outer half piece, of the slide ball makes contact with the slide lower plane. Wounds of different sizes and areas can be flexibly and easily adjusted and measured and can be measured in place at a time, measurement errors are reduced, and measurement time is shortened.
Description
Technical field
The present invention relates to one medically special measuring tool, International Classification of Patents is A61B5/107, particularly relates to four limit skewed slots sliding pearl convergent-divergent carborundum medical science vernier.
Background technology
Medically, due to the needs diagnosed, treat or nurse, require the shape and size of the Measurement accuracy patient edge of a knife, wound, pressure ulcer, ecchymosis, scleroma etc. with it, but, current measurement, mostly be measurement respectively or the estimation measurement of carrying out all directions, such measurement is inaccurate, and easily makes wound infection pathogenic bacteria, therefore, how to address these problems, become people's problem demanding prompt solution.
Such as: radius far-end fracture is one of common fracture of upper limb, accounts for 15.7% of fracture of upper limb.Due to the importance of wrist joint function, its displacement degree reset recovery situation is subject to the attention of clinicist always.X-ray is the important means of diagnosis radius far-end fracture, and it is because of low price, easy to operately becomes the most conventional method.By means of x-ray, the judgement of radius far-end fracture displacement degree is decide to the selection of Therapeutic Method, whether the judgement for reduction of the fracture displacement situation can be understood the reduction of the fracture and be satisfied with.The indexs such as the past usual displacement degree according to radial articular surface, the palm inclination angle, radius height, simoid notch index judge the displacement degree of the fracture of fracture, measure relatively loaded down with trivial details.Wolfe proposes the concept of radius box, is used for judging that the carpal joint line of force changes.But all the time to the judge index of fracture often by direct-view or simply measure, not professional survey tool.The application that distal radius measures square chi can help doctor to quantize displacement fracture situation, line of force change, reset case, assists the formulation of medical scheme.
Chinese patent " a kind of medical survey vernier " (patent No.: 2014204316460) and " judge radius far-end fracture displacement degree survey vernier " (patent No.: 2014205442719), propose very practical measure respectively, but all cannot accomplish to allow four ruler places, limit at grade, therefore, easily error on line of sight is produced.
Summary of the invention
For above prior art Problems existing, the design that the present invention adopts the skewed slot slideway wearing sliding pearl to regulate measurer, achieve the different specification of sizes and can share the sliding pearl in a kind of employing skewed slot four limit, realize the carborundum medical science vernier of isoplanar convergent-divergent, need take multiple measurements to solve existing survey vernier and easily make the problems such as patient part infection.Specific as follows:
A kind of adjustable isoplanar, limit, round and smooth road four medical science measurer, comprise the first vernier, the second vernier, the 3rd vernier and the 4th vernier that four physical dimensions are identical, every vernier is made up of scale part and slippage part, first vernier is made up of the first scale part and the first slippage part, second vernier is made up of the second scale part and the second slippage part, 3rd vernier is made up of the 3rd scale part and the 3rd slippage part, and the 4th vernier is made up of the 4th scale part and the 4th slippage part; As improvement:
Described slippage part is positioned at described scale part one end and higher than plane on scale part; The lower surface of described slippage part is slippage lower plane, and slippage lower plane has trapezoidal tongue, and the upper surface of described scale part is plane on scale, and plane has trapezoidal groove to scale; On described slippage lower plane and described scale, plane is in sustained height; On scale, planar inner has scale slope, and length scale is also engraved on scale slope;
Described scale plane has pearl seat stepped hole, and pearl seat stepped hole is arranged symmetrically in described trapezoidal groove both sides, in pearl seat stepped hole, step has stepped hole plane, and stepped hole planar central has pearl seat fabrication 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 fabrication hole; The outer outstanding sphere position of the sliding pearl seat lateral surface on slippage ball in the outer half of outstanding described sliding pearl seat contacts with described slippage lower plane;
The first described vernier, the second vernier, the 3rd vernier and the 4th vernier are all adopt silicon carbide ceramics on the whole, and this silicon carbide ceramics for base material, is equipped with mineralizer MgO (magnesium oxide), BaCO with SiC (carborundum)
3(brium carbonate) and bonding clay form, and the weight percent content of its each component is: SiC:91.5 ~ 91.7%; MgO:2.7 ~ 2.9%; BaCO
3: 3.2 ~ 3.4%; Bonding clay: 2.2 ~ 2.4%.
As further improvement: in described sliding pearl seat, Circularhole diameter is greater than described slippage ball diameter and is 0.21 to 0.23 millimeter.
As further improvement: plane has described scale to only pearl seat stepped hole.
As further improvement: the overhang of the outer outstanding sphere of the sliding pearl seat lateral surface on described slippage ball in the outer half of outstanding described sliding pearl seat is 0.21 to 0.23 millimeter.
As further improvement: described slippage lower plane there is a layer thickness be. extremely. the hard tungsten alloy coating of millimeter, the material composition percentage by weight of this hard tungsten alloy coating is:: W(tungsten): 14 ~ 16%, Mo(molybdenum): 2.4 ~ 2.6%, Mn(manganese): 2.4 ~ 2.6%, Al(aluminum): 2.3 ~ 2.5%, Cr(chromium): 2.2 ~ 2.4%, Nb(niobium): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Fe(ferrum) and inevitable impurity; The weight percent content of this impurity is: Si(silicon) be less than 0.20%, S(sulfur) be less than 0.010%, P(phosphorus) be less than 0.015%; The material Specifeca tion speeification of described tungsten alloy hard wear-resistant coating is: Rockwell hardness HRC value is 48 ~ 50.
beneficial effect of the present invention:
One, described slippage part is positioned at described scale part one end and is overlapped on plane on scale part, and on described slippage lower plane and described scale, plane is in sustained height, guarantees that the length scale of surrounding is all in same level, avoids error on line of sight; And the trapezoidal protruding rail on every vernier and between the trapezoidal groove on adjacent vernier for being slidably matched, particularly plane has scale pearl seat stepped hole internal fixtion slippage ball; The outer outstanding sphere of slippage ball contacts with described slippage lower plane, realizes can easy adjustment measuring flexibly the different wound of area.
Two, the present invention adopts the portable composite construction of only a group, disassembles, cleans, sterilizes, meet the sanitary standard requirement of medical apparatus and instruments after convenient each use.
Three, the present invention's entirety adopts silicon carbide ceramics, possesses corrosion-resistant and high rigidity and resistance to deformation advantage simultaneously.In addition, slippage lower plane there is one deck hard tungsten alloy coating, possess corrosion-resistant and anti abrasive advantage simultaneously.
Four, medical survey vernier provided by the present invention, has structure simple, easy to use, does not need repetitive measurement, avoids patient part because measuring the advantages such as infection.
Medical worker is when measurement patient part size, and disposable measurement puts in place, does not need the outcome record by gradation is measured to get off, to reduce measurement error and to shorten Measuring Time.Above-mentioned substantive distinguishing features, for patient provides more accurate rescue protocol, more rescues wounded's life and has striven for the quality time, have progressive effect.
Accompanying drawing explanation
Fig. 1 is the top view of of the present invention 4 group.
Fig. 2 is the design sketch of the present invention when measuring irregular wound in Fig. 1.
Fig. 3 is the A-A sectional view in Fig. 1.
Fig. 4 is the outline drawing of the 4th vernier 40 in Fig. 1 or Fig. 2.
Fig. 5 is the isometric front view of Fig. 4.
Fig. 6 is the rear isometric view of Fig. 3.
Fig. 7 is the B-B sectional view in Fig. 4.
Fig. 8 is the partial enlarged drawing in Fig. 3.
Fig. 9 is the partial enlarged drawing of the slippage ball 80 in Fig. 8.
Figure 10 unloads the state diagram except sliding pearl seat after half 82 in Fig. 9.
Figure 11 is the partial enlarged drawing of the outer half 82 of sliding pearl seat in Fig. 9.
Figure 12 unloads the state diagram except half 81 in sliding pearl seat and sliding pearl seat after half 82 in Fig. 9.
Detailed description of the invention
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6, in Fig. 7 and Fig. 8: the medical science measurer of adjustable isoplanar, limit, a kind of round and smooth road four, comprise the first vernier 10 that four physical dimensions are identical, second vernier 20, 3rd vernier 30 and the 4th vernier 40, every vernier is made up of scale part and slippage part, first vernier 10 is made up of the first scale part 19 and the first slippage part 18, second vernier 20 is made up of the second scale part 29 and the second slippage part 28, 3rd vernier 30 is made up of the 3rd scale part 39 and the 3rd slippage part 38, 4th vernier 40 is made up of the 4th scale part 49 and the 4th slippage part 48, as improvement:
Described slippage part is positioned at described scale part one end and higher than plane on scale part; The lower surface of described slippage part is slippage lower plane 61, slippage lower plane 61 has trapezoidal tongue 41, and the upper surface of described scale part is plane 16 on scale, and plane 16 has trapezoidal groove 14 to scale; Described slippage lower plane 61 is in sustained height with plane 16 on described scale; Scale there is scale slope 15 inside plane 16, scale slope 15 is also engraved length scale 51;
Described scale plane 16 has pearl seat stepped hole 78, and pearl seat stepped hole 78 is arranged symmetrically in described trapezoidal groove 14 both sides, in pearl seat stepped hole 78, step has stepped hole plane 75, and there is pearl seat fabrication hole 79 at stepped hole plane 75 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 78 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 fabrication hole 79; Outer outstanding sphere 89 position 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 slippage lower plane 61.
As further improvement: described the first vernier 10, second vernier 20, the 3rd vernier 30 and the 4th vernier 40 are all adopt silicon carbide ceramics on the whole, this silicon carbide ceramics for base material, is equipped with mineralizer MgO (magnesium oxide), BaCO with SiC (carborundum)
3(brium carbonate) and bonding clay form, and the weight percent content of its each component is: SiC:91.5 ~ 91.7%; MgO:2.7 ~ 2.9%; BaCO
3: 3.2 ~ 3.4%; Bonding clay: 2.2 ~ 2.4%.
As further improvement: in described sliding pearl seat, circular hole 88 diameter is greater than described slippage ball 80 diameter and is 0.21 to 0.23 millimeter.
As further improvement: plane 16 there are described scale 16 to 20 pearl seat stepped holes 78.
As further improvement: the overhang of the outer outstanding sphere 89 of the sliding pearl seat lateral surface 85 on described slippage ball 80 in the outer half 82 of outstanding described sliding pearl seat is 0.21 to 0.23 millimeter.
As further improvement: described slippage lower plane 61 there is a layer thickness be the hard tungsten alloy coating of 0.21 to 0.23 millimeter, the material composition percentage by weight of this hard tungsten alloy coating is: W(tungsten): 14 ~ 16%, Mo(molybdenum): 2.4 ~ 2.6%, Mn(manganese): 2.4 ~ 2.6%, Al(aluminum): 2.3 ~ 2.5%, Cr(chromium): 2.2 ~ 2.4%, Nb(niobium): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Fe(ferrum) and inevitable impurity; The weight percent content of this impurity is: Si(silicon) be less than 0.20%, S(sulfur) be less than 0.010%, P(phosphorus) be less than 0.015%; The material Specifeca tion speeification of described tungsten alloy hard wear-resistant coating is: Rockwell hardness HRC value is 48 ~ 50.
As further improvement: on described scale, plane 16 is 3.6 to 3.8 millimeters to the degree of depth of the groove-bottom plane 71 of described trapezoidal groove 14 bottom surface, angle between the groove inclined-plane of described trapezoidal groove 14 both sides and groove-bottom plane 71 is 54 to 56 and spends, groove-bottom plane 71 width of described trapezoidal groove 14 bottom surface is 6.7 to 6.9 millimeters, groove-bottom plane 71 lengthwise dimension is 155 to 157 millimeters, and the described single-ended opening of trapezoidal groove 14;
As further improvement: the height of the tongue top plane 74 above described slippage lower plane 61 to described trapezoidal tongue 41 is 3.3 to 3.5 millimeters, angle between the tongue inclined-plane of described trapezoidal tongue 41 both sides and tongue top plane 74 is 54 to 56 and spends, and tongue top plane 74 width above described trapezoidal tongue 41 is 6.3 to 6.5 millimeters.
As further improvement: there is the gap of 0.2 to 0.4 between tongue top plane 74 described in groove-bottom plane 71 described on the first described scale part 19 and the 4th slippage part 48, the trapezoidal groove 14 on the first described scale part 19 and between the trapezoidal tongue 41 in the 4th slippage part 48 for being slidably matched;
Have the gap of 0.2 to 0.4 between tongue top plane 74 described in groove-bottom plane 71 described on the 4th described scale part 49 and the 3rd slippage part 38, the trapezoidal groove 14 on the 4th described scale part 49 and between the trapezoidal tongue 41 in the 3rd slippage part 38 for being slidably matched;
Have the gap of 0.2 to 0.4 between tongue top plane 74 described in groove-bottom plane 71 described on the second described scale part 29 and the first slippage part 18, the trapezoidal groove 14 on the second described scale part 29 and between the trapezoidal tongue 41 in the first slippage part 18 for being slidably matched;
Have the gap of 0.2 to 0.4 between tongue top plane 74 described in groove-bottom plane 71 described on the 3rd described scale part 39 and the second slippage part 28, the trapezoidal groove 14 on the 3rd described scale part 39 and between the trapezoidal tongue 41 in the second slippage part 28 for being slidably matched.
As further improvement: the angle on described scale slope 15 and scale between plane 16 is 41 ~ 43 degree.
As further improvement: described length scale 51 texture depth 0.24 to 0.26 millimeter.
In embodiment, elementary composition by following percentage by weight of described tungsten alloy steel: W (tungsten): 15%, Mo(molybdenum): 2.8%, Mn(manganese): 2.5%, Al(aluminum): 2.4%, Cr(chromium): 2.3, Nb(niobium): 1.5%, C(carbon): 1.2%, surplus is Fe(ferrum) and inevitable impurity; The weight percent content of this impurity is: Si(silicon) be 0.17%, S(sulfur) be 0.009%, P(phosphorus) be 0.014%; The material Specifeca tion speeification of tungsten alloy hard wear-resistant coating is: Rockwell hardness HRC value is 49.This tungsten alloy Steel material has the characteristic of high-strength corrosion-resisting.
Described silicon carbide ceramics for base material, is equipped with mineralizer MgO (magnesium oxide), BaCO with SiC (carborundum)
3(brium carbonate) and bonding clay form, and the weight percent content of its each component is: SiC:91.6%; MgO:2.8%; BaCO
3: 3.3%; Bonding clay: 2.3%.
The concrete manufacture method of this silicon carbide ceramics vernier is by after the fusion according to a certain ratio of above-mentioned each material, compressing, under 1720 DEG C of high temperature, calcine molding.
According to the silicon carbide ceramics vernier that above proportioning and method make, a kind of novel diamond spar material is formed under 1720 DEG C of high-temperature calcinations, its density is 3.13-3.15g/cm, bending strength >=400Mpa, hardness 2000HV, elastic modulus G reatT.GreaT.GT 410Gpa, tensile strength >=4MPa, operating temperature can reach subzero 10 DEG C ~ 600 DEG C Celsius.Not only there is good intensity and good anti-wear performance, and meet medical apparatus and instruments hygienic requirements.
Through grinding to drawing dimensional requirement, the angle on scale slope 15 and scale between plane 16 is 42 degree.Length scale 51 texture depth 0.25 millimeter, adopts laser typewriting to generate.
Slippage ball 80 spherical diameter is 1.1 to 1.3 millimeters, and sliding pearl seat cylindrical 86 diameter is 2.1 to 2.3.
In Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12: mounting slip ball 80 in 18 pearl seat stepped holes 78 on scale 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 plane on scale 16 upward, successively half 81 in cunning pearl seat is arranged in pearl seat stepped hole 78 again, the sliding pearl seat lateral surface 85 in the sliding pearl seat in each pearl seat stepped hole 78 in half 81 is made to touch stepped hole plane 75, when in sliding pearl seat, half 81 returns to room temperature state, the sliding pearl seat cylindrical 86 in sliding pearl seat in half 81 and have between pearl seat stepped hole 78 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 78, 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 room temperature state, sliding pearl seat cylindrical 86 in the outer half 82 of sliding pearl seat and have between pearl seat stepped hole 78 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 scale, plane 16 is fair.
In Fig. 2, to measure grafting for burns area, step is as follows:
One, in advance prepare: by between the trapezoidal protruding rail 41 on the trapezoidal groove 14 on the first scale part 19 and the 4th slippage part 48 for being slidably matched; By between the trapezoidal protruding rail 41 on the trapezoidal groove 14 on the 4th scale part 49 and the 3rd slippage part 38 for being slidably matched; By between the trapezoidal groove 14 on the second scale part 29 and the trapezoidal protruding rail 41 in the first slippage part 18 for being slidably matched; By between the trapezoidal groove 14 on the 3rd scale part 39 and the trapezoidal protruding rail 41 in the second slippage part 28 for being slidably matched.
Two, the size of irregular wound contour line 93 is estimated, adjust the present invention of 4 one group, the grafting for burns area profile line 97 that the scale slope 15 of surrounding in measurer square frame after combining will be measured contains wherein completely, disposablely completes measurement result, determines grafting for burns area.
The above-mentioned outstanding substantive distinguishing features of the present invention, has following significant progressive effect:
One, described slippage part is positioned at described scale part one end and is overlapped on plane on scale part, and described slippage lower plane 61 is in sustained height with plane 16 on described scale, guarantee that the length scale 51 of surrounding is all in same level, avoid error on line of sight; And the trapezoidal protruding rail 41 on every vernier and between the trapezoidal groove 14 on adjacent vernier for being slidably matched, particularly plane 16 has scale pearl seat stepped hole 78 internal fixtion slippage ball 80; The outer outstanding sphere 89 of slippage ball 80 contacts with described slippage lower plane 61, realizes can easy adjustment measuring flexibly the different wound of area.
Two, the present invention adopts the portable composite construction of 4 group, disassembles, cleans, sterilizes, meet the sanitary standard requirement of medical apparatus and instruments after convenient each use.
Three, the present invention's entirety adopts silicon carbide ceramics, possesses corrosion-resistant and high rigidity and resistance to deformation advantage simultaneously.In addition, slippage lower plane 61 there is one deck hard tungsten alloy coating, possess corrosion-resistant and anti abrasive advantage simultaneously.
Four, medical survey vernier provided by the present invention, has structure simple, easy to use, does not need repetitive measurement, avoids patient part because measuring the advantages such as infection.
Medical worker is when measurement patient part size, and disposable measurement puts in place, does not need the outcome record by gradation is measured to get off, to reduce measurement error and to shorten Measuring Time.Above-mentioned substantive distinguishing features, for patient provides more accurate rescue protocol, more rescues wounded's life and has striven for the quality time, have progressive effect.
Claims (5)
1. four limit skewed slots sliding pearl convergent-divergent carborundum medical science vernier, comprise the first vernier (10) that four physical dimensions are identical, second vernier (20), 3rd vernier (30) and the 4th vernier (40), every vernier is made up of scale part and slippage part, first vernier (10) is made up of the first scale part (19) and the first slippage part (18), second vernier (20) is made up of the second scale part (29) and the second slippage part (28), 3rd vernier (30) is made up of the 3rd scale part (39) and the 3rd slippage part (38), 4th vernier (40) is made up of the 4th scale part (49) and the 4th slippage part (48), it is characterized in that:
Described slippage part is positioned at described scale part one end and higher than plane on scale part; The lower surface of described slippage part is slippage lower plane (61), slippage lower plane (61) there is trapezoidal tongue (41), the upper surface of described scale part is plane (16) on scale, and plane (16) has trapezoidal groove (14) to scale; Described slippage lower plane (61) is in sustained height with plane (16) on described scale; On scale, there is scale slope (15) plane (16) inner side, scale slope (15) also engraves length scale (51);
Plane (16) there is pearl seat stepped hole (78) to described scale, pearl seat stepped hole (78) is arranged symmetrically in described trapezoidal groove (14) both sides, pearl seat stepped hole (78) interior step has stepped hole plane (75), there is pearl seat fabrication hole (79) at stepped hole plane (75) 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 (78) 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 fabrication hole (79); Outer outstanding sphere (89) position 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 slippage lower plane (61);
Described the first vernier (10), the second vernier (20), the 3rd vernier (30) and the 4th vernier (40) are all adopt silicon carbide ceramics on the whole, this silicon carbide ceramics for base material, is equipped with mineralizer MgO (magnesium oxide), BaCO with SiC (carborundum)
3(brium carbonate) and bonding clay form, and the weight percent content of its each component is: SiC:91.5 ~ 91.7%; MgO:2.7 ~ 2.9%; BaCO
3: 3.2 ~ 3.4%; Bonding clay: 2.2 ~ 2.4%.
2. four limit skewed slots according to claim 1 sliding pearl convergent-divergent carborundum medical science verniers, is characterized in that: in described sliding pearl seat, circular hole (88) diameter is greater than described slippage ball (80) diameter and is 0.21 to 0.23 millimeter.
3. four limit skewed slot according to claim 1 sliding pearl convergent-divergent carborundum medical science vernier, is characterized in that: described scale plane (16) has 16 to 20 pearl seat stepped holes (78).
4. four limit skewed slot according to claim 1 sliding pearl convergent-divergent carborundum medical science vernier, is characterized in that: the overhang of 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 described slippage ball (80) is 0.21 to 0.23 millimeter.
5. four limit skewed slot according to claim 1 sliding pearl convergent-divergent carborundum medical science vernier, it is characterized in that: described slippage lower plane (61) has a layer thickness be the hard tungsten alloy coating of 0.21 to 0.23 millimeter, the material composition percentage by weight of this hard tungsten alloy coating is:: W(tungsten): 14 ~ 16%, Mo(molybdenum): 2.4 ~ 2.6%, Mn(manganese): 2.4 ~ 2.6%, Al(aluminum): 2.3 ~ 2.5%, Cr(chromium): 2.2 ~ 2.4%, Nb(niobium): 1.4 ~ 1.6%, C(carbon): 1.1 ~ 1.3%, surplus is Fe(ferrum) and inevitable impurity, the weight percent content of this impurity is: Si(silicon) be less than 0.20%, S(sulfur) be less than 0.010%, P(phosphorus) be less than 0.015%, the material Specifeca tion speeification of described tungsten alloy hard wear-resistant coating is: Rockwell hardness HRC value is 48 ~ 50.
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| CN202036218U (en) * | 2011-01-19 | 2011-11-16 | 西安交通大学 | Multifunctional ankle measuring device |
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| CN202950279U (en) * | 2012-08-20 | 2013-05-29 | 苏州旭鹏精密工业有限公司 | Improved structure of slide rail ball seat |
| CN203436327U (en) * | 2013-09-05 | 2014-02-19 | 武汉德骼拜尔外科植入物有限公司 | Hip joint reference scale |
| CN103628024A (en) * | 2013-11-15 | 2014-03-12 | 桂林电子科技大学 | Technology for depositing titanium nitride film on surface of 4Cr13 stainless steel vernier caliper |
| CN204121021U (en) * | 2014-09-22 | 2015-01-28 | 王古衡 | Judge the dip stick of radius far-end fracture displacement degree |
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| JPS63132790U (en) * | 1987-02-24 | 1988-08-30 | ||
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| CN1148159A (en) * | 1995-10-13 | 1997-04-23 | 财团法人工业技术研究院 | Gauge block made of chromium carbide compounded ceramics |
| CN101166464A (en) * | 2005-05-05 | 2008-04-23 | 加利福尼亚大学董事会 | Methods and instruments for assessing bone fracture risk |
| CN101879830A (en) * | 2009-05-04 | 2010-11-10 | 李国兴 | Sliding miter square |
| CN201666771U (en) * | 2009-12-24 | 2010-12-08 | 郑州硕达钻石有限公司 | Vernier caliper |
| CN102261878A (en) * | 2010-05-29 | 2011-11-30 | 史祖法 | Vernier caliper having long service life and manufacturing method thereof |
| CN202036218U (en) * | 2011-01-19 | 2011-11-16 | 西安交通大学 | Multifunctional ankle measuring device |
| CN202950279U (en) * | 2012-08-20 | 2013-05-29 | 苏州旭鹏精密工业有限公司 | Improved structure of slide rail ball seat |
| CN203436327U (en) * | 2013-09-05 | 2014-02-19 | 武汉德骼拜尔外科植入物有限公司 | Hip joint reference scale |
| CN103628024A (en) * | 2013-11-15 | 2014-03-12 | 桂林电子科技大学 | Technology for depositing titanium nitride film on surface of 4Cr13 stainless steel vernier caliper |
| CN204121021U (en) * | 2014-09-22 | 2015-01-28 | 王古衡 | Judge the dip stick of radius far-end fracture displacement degree |
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Application publication date: 20151118 |