CN103234816B - Adjustable vertebrae fixing device - Google Patents
Adjustable vertebrae fixing device Download PDFInfo
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- CN103234816B CN103234816B CN201310134349.XA CN201310134349A CN103234816B CN 103234816 B CN103234816 B CN 103234816B CN 201310134349 A CN201310134349 A CN 201310134349A CN 103234816 B CN103234816 B CN 103234816B
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- vertebrae
- collet body
- electronic universal
- guide rail
- fixing
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Abstract
The invention aims at providing an adjustable vertebrae fixing device used in vertebrae mechanical property measuring by using an electronic universal testing machine. The adjustable vertebrae fixing device is characterized in that the device comprises a fixing part used for fixing a vertebrae, a supporting part fixedly connected with the electronic universal testing machine during measuring, and a position adjusting part used for adjusting the horizontal and vertical directions of the fixing part on the supporting part. The fixing part comprises a clamp head body and a plurality of locking members. The supporting part comprises a supporting beam with a slide groove and a fixing supporting leg fixedly connected with the electronic universal testing machine. The position adjusting part comprises a guide rail pedestal, a pair of recessed guide rails, and a plurality of fastening members. When the electronic universal testing machine can only apply force on a vertical direction, the test vertebrae fixed by the adjustable vertebrae fixing device is not only stressed on a vertical direction, but biomechanical tests can be conveniently carried out on the vertebrae on forward, backward, leftward and rightward tilting directions.
Description
Technical field
The present invention relates to a kind of adjustable spinal bone fixation device measuring vertebrae mechanical property for electronic universal tester.
Background technology
When studying vertebrae biomechanical property, electronic universal tester is a kind of conventional pressure application devices, as: the electronic universal tester of INSTRON 3365 type.Force direction from top to bottom can only be realized in use and the experimental result of this force direction is carried out analyzing and showing.But in the force way of human spine, the situation of pressure at right angle is less, lean forward, the stressed research of hypsokinesis and lateral bending has more ubiquity, and the form that electronic universal tester only exerts a force in vertical direction can not meet actual vertebrae biomechanics Research needs.
Therefore, how to realize that electronic universal tester test vertebrae leans forward, the stressing conditions of hypsokinesis and lateral bending becomes the problem needing to solve.
Summary of the invention
The object of the present invention is to provide a kind of adjustable spinal bone fixation device measuring vertebrae mechanical property for electronic universal tester, to overcome the above-mentioned shortcoming and defect existing for prior art.
A kind of adjustable spinal bone fixation device measuring vertebrae mechanical property for electronic universal tester provided by the invention, is characterized in that having the fixed part for fixing vertebrae; When a measurement is taken, the support portion be fixedly connected with electronic universal tester; And for regulating the position-regulation portion of fixed part horizontal direction and vertical direction position on support portion; Wherein, fixed part comprises collet body and a plurality of locking member, and collet body is the rectangular parallelepiped with cavity, and locking member is used for one end of vertebrae to be fixed in cavity; The brace summer that support portion comprises band chute and the fixing spike be fixedly connected with electronic universal tester; Position-regulation portion comprises guiderail base, a pair spill guide rail and a plurality of securing member, guiderail base has the slide block matched with chute shape of cross section, slide block horizontal direction can move guiderail base can horizontal direction be moved on brace summer in chute, spill guide rail is fixed on guiderail base, collet body can vertical direction move in spill guide rail, securing member, for being fixed on spill guide rail by collet body.
In addition, a kind of adjustable spinal bone fixation device provided by the invention can also have such feature: when vertebrae fixed by locking member, locking member embeds in collet body completely; The xsect of collet body is square.
In addition, a kind of adjustable spinal bone fixation device provided by the invention can also have such feature: spill guide rail has multiple through hole, provides the space that locking member passes.
Further, a kind of adjustable spinal bone fixation device provided by the invention can also have such feature: support portion also comprises two balance spikes.
Invention effect and effect
According to adjustable spinal bone fixation device provided by the invention, because this adjustable spinal bone fixation device has the fixed part for fixing vertebrae; When a measurement is taken, the support portion that can be fixedly connected with electronic universal tester; And for regulating the position-regulation portion of fixed part horizontal direction and vertical direction position on support portion, so when electronic universal tester can only vertical direction force, the tested vertebrae fixed of adjustable spinal bone fixation device can leaning forward easily except upper and lower pressurized, hypsokinesis and left and right inclination direction on carry out biomechanics experiment, can also according to the situation of different tested vertebrae length and degree of crook, regulate the position of tested vertebrae horizontal direction and vertical direction, bring great convenience to test.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electronic universal tester operator's console of the present invention's INSTRON 3365 type in an embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the present invention's adjustable spinal bone fixation device in an embodiment;
Fig. 4 is the present invention's chuck body structure schematic diagram in an embodiment;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the present invention's support beam structure schematic diagram in an embodiment;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the vertical view of Fig. 6;
Fig. 9 is the present invention's rigid staybolt leg structure schematic diagram in an embodiment;
Figure 10 is the vertical view of Fig. 9;
Figure 11 is the present invention's guiderail base structural representation in an embodiment;
Figure 12 is the vertical view of Figure 11;
Figure 13 is the slide block structure schematic diagram in embodiments of the invention;
Figure 14 is the vertical view of Figure 13;
Figure 15 is a pair spill guide rail structure schematic diagram in embodiments of the invention;
Figure 16 is the left view of Figure 15;
Figure 17 is the vertical view of Figure 15;
Figure 18 is position-regulation portion in inventive embodiment and collet body connection diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is set forth further.
The electronic universal tester measuring biomechanical property in the present embodiment is the electronic universal tester of INSTRON 3365 type.
Fig. 1 is the structural representation of the electronic universal tester operator's console of the present invention's INSTRON 3365 type in an embodiment.
Fig. 2 is the vertical view of Fig. 1.
The electronic universal tester of INSTRON 3365 type has an operator's console, and operator's console has the plane of a level.Plane has a right cylinder, right cylinder has the horizontal direction manhole that the circular port of a vertical direction and run through vertical direction circular port, the circular hole through-hole diameter of horizontal direction is less than the diameter of the circular port of vertical direction, and operator's console has a register pin matched with right cylinder horizontal direction manhole in addition.
Fig. 3 is the structural representation of the present invention's adjustable spinal bone fixation device in an embodiment.
As shown in Figure 3, adjustable spinal bone fixation device is by fixed part 20, and support portion 30 and position-regulation portion 40 are formed.
Fixed part 20 is made up of collet body 6 and four lock-screws 8.
Fig. 4 is the present invention's chuck body structure schematic diagram in an embodiment.
Fig. 5 is the vertical view of Fig. 4.
As shown in Figure 4 and Figure 5, collet body 6 for xsect be foursquare rectangular parallelepiped, there is a circular through hole at foursquare center.In four planes adjacent with square, point midway has four tapped through holes, and the screw thread of this screw thread and lock-screw 8 matches.In same position in four planes adjacent with square, the both sides of distance tapped blind hole same distance are respectively provided with a tapped blind hole, totally eight tapped blind holes in four planes.One end of vertebrae to be measured is placed in the circular cavity of collet body 6, is screwed in the tapped through hole of collet body 6, is fixed in cavity one end of vertebrae to be measured with four lock-screws 8.After four lock-screws 8 are screwed into collet body 6, embed in collet body 6 completely, namely the end face of lock-screw 8 is not higher than the end face of collet body 6.
Support portion 30 balances spike 11 by brace summer 2, the fixing spike 1 be fixedly connected with electronic universal tester and two and forms.
Fig. 6 is the present invention's support beam structure schematic diagram in an embodiment.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the vertical view of Fig. 6.
As shown in Fig. 6, Fig. 7 and Fig. 8, the upper plane of brace summer 2 has a chute.The lower plane of brace summer 2 has one for being connected and fixed the threaded hole of spike 1, and two for connecting the threaded hole of balance spike 11.
Fig. 9 is the present invention's rigid staybolt leg structure schematic diagram in an embodiment.
Figure 10 is the vertical view of Fig. 9.
As shown in Figure 9 and Figure 10, fixing spike 1 is made up of the right cylinder of three concentricity axles, and right cylinder is topmost processed with the external thread with the corresponding threaded holes of on the lower plane of brace summer 2.Cylindrical diameter is bottom consistent with the circular port diameter of the right cylinder vertical direction of the electronic universal tester operator's console of INSTRON 3365 type, and fixing spike 1 cylinder height is bottom higher than the cylinder height of the electronic universal tester operator's console of INSTRON 3365 type.On right cylinder bottom, horizontal direction processes a manhole, and the manhole of the cylindrical horizontal direction of electronic universal tester operator's console of the position of manhole and diameter and INSTRON 3365 type matches.Fixing spike 1 external thread is topmost screwed in the threaded hole of brace summer 2, until the upper surface of the mediate cylindrical of fixing spike 1 overlaps with the lower surface of brace summer 2.
Two balance spikes 11 have the external thread with the corresponding threaded holes of two on the lower plane of brace summer 2.The height of balance spike 11 is consistent with the height of fixing spike 1.External thread on two balance spikes 11 is screwed in two threaded holes of brace summer 2 respectively.Support portion 30 is supported in an arbitrary plane by three fulcrums of fixing spike 1 and two balance spikes 11, such as: on experiment table.
Position-regulation portion 40 is made up of guiderail base 4, a pair spill guide rail 9 and four trip bolts 7.
Guiderail base 4 bottom surface embeds a slide block 3, and slide block 3 is fixed on guiderail base 4 by slide block screw 5, and guiderail base 4 and brace summer 2 surface of contact are provided with pad 10, increases friction force, strengthens fixed effect.
Figure 11 is the present invention's guiderail base structural representation in an embodiment.
Figure 12 is the vertical view of Figure 11.
As is illustrated by figs. 11 and 12, have a rectangular channel bottom guiderail base 4, there is a through hole top of rectangular channel.
Figure 13 is the slide block structure schematic diagram in embodiments of the invention.
Figure 14 is the vertical view of Figure 13.
As shown in Figure 13 and Figure 14, the xsect of slide block 3 is convex, and the shape of slide block the latter half and the chute of brace summer 2 match.The vertical direction center of slide block 3 has tapped through hole, and the screw thread of threaded hole and slide block screw 5 matches.
Slide block 3 the first half embeds in the rectangular channel of guiderail base 4, the center of threaded hole and the through hole center superposition of guiderail base 4, and slide block screw 5 is screwed in the threaded hole of slide block 3 through the through hole of guiderail base 4, is fixed on guiderail base 4 by slide block 3.
Figure 15 is a pair spill guide rail structure schematic diagram in embodiments of the invention.
Figure 16 is the left view of Figure 15.
Figure 17 is the vertical view of Figure 16.
As shown in Figure 15, Figure 16 and Figure 17, a pair spill guide rail 9 has the identical spill guide rail of two structures, spill guide rail has guide-track groove, the width of guide-track groove and the width of collet body 6 match, make collet body 6 vertically can put into guide-track groove, each spill guide rail is arranged equidistantly seven through holes, this distance is consistent with the tapped blind hole of collet body 6 and the centre distance of tapped through hole, seven through holes be both used for the lock-screw 8 through fixed part 20, the threaded portion be used for again through the trip bolt 7 of position-regulation portion 40.The guide-track groove of a pair spill guide rail 9 is relatively weldingly fixed on guiderail base 4, and the distance between ensureing time fixing bottom guide-track groove is consistent with the square length of collet body 6.
The screw thread of the screw thread of trip bolt 7 and the tapped blind hole of collet body 6 matches.
Figure 18 is position-regulation portion in inventive embodiment and collet body connection diagram.
As shown in figure 18, inserted by collet body 6 in the guide-track groove of a pair spill guide rail 9, the threaded portion of trip bolt 7, through the through hole of spill guide rail, is screwed in the tapped blind hole of collet body 6, is fixed in position-regulation portion 40 by collet body 6.Collet body 6 can be fixed on five different positions by seven through holes that each spill guide rail of position-regulation portion 40 has, and realizes the function that collet body 6 can carry out position adjustments in the vertical direction.
The slide block 3 be fixed on guiderail base 4 is embedded in the chute on brace summer 2, makes position-regulation portion 40 can do the movement of horizontal direction on support portion 30, realize the function that collet body 6 can carry out position adjustments in the horizontal direction.
The workflow of this adjustable spinal bone fixation device is set forth below for the test of the electronic universal tester of INSTRON 3365 type test vertebrae:
Step 1: test vertebrae one end is polished so that fixing.
Step 2: the circular port fixing spike of adjustable spinal bone fixation device being put into the cylindrical vertical direction of operator's console of INSTRON 3365 type electronic universal tester, and with register pin simultaneously through the manhole in fixing spike horizontal direction and the through hole in operator's console right cylinder horizontal direction, utilize fixing spike and two just adjustable spinal bone fixation device of balance spike to be fixed in the operator's console plane of INSTRON 3365 type electronic universal tester.
Step 3: test vertebrae axis is horizontal, by before it down, polish end and insert in the circular cavity of collet body, be screwed into the tapped through hole on collet body with four lock-screws, to be locked tested vertebrae from surrounding.
Step 4: the stressed rear degree of crook of the vertebrae due to different length is different, selects suitable end fixed position, namely selects the through hole of height suitable on spill guide rail to fix the position of collet body.
Step 5: different according to the length of test vertebrae, drives position-regulation portion to move in a groove by slide block, and the other end of order test vertebrae can put into the point of application of electronic universal tester, prepares the mechanical test that leans forward of carrying out vertebrae afterwards.
Step 6: front end mechanical test: use electronic universal tester to test vertebrae, obtain test figure by the display system of testing machine.
Step 7: roll mechanical test: the trip bolt of release position adjusting portion, after fixed part being shifted out spill guide rail, to reinstall in spill guide rail after collet body around hole axis half-twist, fix with trip bolt, by vertebra bone around hole axis half-twist, use electronic universal tester to test vertebrae, obtain test figure by the display system of testing machine.
Step 8: hypsokinesis mechanical test: the trip bolt of release position adjusting portion, after fixed part being shifted out spill guide rail, to reinstall in spill guide rail after collet body around hole axis again half-twist, fix with trip bolt, by vertebra bone around hole axis half-twist again, use electronic universal tester to test vertebrae, obtain test figure by the display system of testing machine.
Step 9: the inclination mechanical test of vertebrae opposite side: the trip bolt of release position adjusting portion, after fixed part being shifted out spill guide rail, to reinstall in spill guide rail after collet body around hole axis again half-twist, fix with trip bolt, by vertebra bone around hole axis half-twist again, use electronic universal tester to test vertebrae, obtain test figure by the display system of testing machine.
Step 10: the mechanical property of testing another root vertebrae: unclamp four lock-screws on fixed part, two, left and right lock-screw is operated by the through hole on spill guide rail, take out the vertebrae tested, change the vertebrae that another root one end polishes, repeat step 3 to step 9.
Step 11: test terminates, unclamp lock-screw, take out test vertebrae, unclamp register pin, and the fixing spike of adjustable spinal bone fixation device is moved away from the right cylinder of INSTRON 3365 type electronic universal tester operator's console, utilize fixing spike and two balance spikes to be placed in operator's console plane by adjustable spinal bone fixation device.
The effect of embodiment and effect
According to the adjustable spinal bone fixation device in the present embodiment, because this adjustable spinal bone fixation device has the fixed part for fixing vertebrae; When a measurement is taken, the support portion that can be fixedly connected with electronic universal tester; And for regulating the position-regulation portion of fixed part horizontal direction and vertical direction position on support portion, so when electronic universal tester can only vertical forces, the tested vertebrae fixed of adjustable spinal bone fixation device can leaning forward easily except upper and lower pressurized, hypsokinesis and left and right inclination biomechanics experiment, can also according to the situation of different tested vertebraes, regulate the position of tested vertebrae horizontal direction and vertical direction, bring great convenience to test.
In addition, adjustable spinal bone fixation device in the present embodiment, because the xsect of the collet body of fixed part is square, collet body square any while can load in the guide-track groove of spill guide rail, so, do not need tested vertebrae to reinstall when rotating tested vertebrae measurement direction, only need the direction of rotary chuck body, shorten the time of the tested vertebrae of dismounting, simplify the operation steps of test.
In addition, adjustable spinal bone fixation device in the present embodiment, because the through hole on spill guide rail can also be used to dismantle lock-screw, so, when changing tested vertebrae, do not need the collet body dismantling fixed part, shorten the time of the tested vertebrae of dismounting from another aspect, simplify the operation steps of test.
Claims (4)
1. measure an adjustable spinal bone fixation device for vertebrae mechanical property for electronic universal tester, it is characterized in that having:
Fixed part, for fixing described vertebrae;
Support portion, when carrying out described measurement, is fixedly connected with described electronic universal tester; And
Position-regulation portion, for regulating described fixed part horizontal direction and vertical direction position on described support portion;
Wherein, described fixed part comprises collet body and a plurality of locking member,
Described collet body is the rectangular parallelepiped with cavity,
Described locking member is used for one end of described vertebrae to be fixed in described cavity;
The brace summer that described support portion comprises band chute and the fixing spike be fixedly connected with described electronic universal tester;
Described position-regulation portion comprises guiderail base, a pair spill guide rail and a plurality of securing member,
Described guiderail base has the slide block matched with described chute shape of cross section, and described slide block horizontal direction can move described guiderail base can horizontal direction be moved on described brace summer in described chute,
Described spill guide rail is fixed on described guiderail base, and described collet body can vertical direction move in described spill guide rail,
Described securing member, for being fixed on described spill guide rail by described collet body.
2. adjustable spinal bone fixation device as claimed in claim 1, is characterized in that:
Wherein, when described vertebrae fixed by described locking member, described locking member embeds in described collet body completely;
The xsect of described collet body is square.
3. adjustable spinal bone fixation device as claimed in claim 1, is characterized in that:
Wherein, described spill guide rail has multiple through hole, provides the space that described locking member passes.
4. adjustable spinal bone fixation device as claimed in claim 1, is characterized in that:
Wherein, described support portion also comprises two balance spikes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134349.XA CN103234816B (en) | 2013-04-17 | 2013-04-17 | Adjustable vertebrae fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134349.XA CN103234816B (en) | 2013-04-17 | 2013-04-17 | Adjustable vertebrae fixing device |
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| Publication Number | Publication Date |
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| CN103234816A CN103234816A (en) | 2013-08-07 |
| CN103234816B true CN103234816B (en) | 2015-06-17 |
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| CN201310134349.XA Expired - Fee Related CN103234816B (en) | 2013-04-17 | 2013-04-17 | Adjustable vertebrae fixing device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949888B (en) * | 2015-06-05 | 2017-11-28 | 西安建筑科技大学 | A kind of more Proportional valve load equipments of long-term crack test of regeneration concrete |
| CN104949885B (en) * | 2015-06-05 | 2017-11-28 | 西安建筑科技大学 | A kind of regeneration concrete TERM DEFORMATION experiment loading and measurement apparatus |
| CN105388075A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Tool for measuring ball head shearing strength of valve push rod |
| CN106404536B (en) * | 2016-10-24 | 2019-01-08 | 浙江瑞邦智能装备股份有限公司 | Spinal biomechanics multi-angle loads measuring device |
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| JP2006078358A (en) * | 2004-09-10 | 2006-03-23 | Toyo Seiki Seisakusho:Kk | Bend tester |
| CN101943646A (en) * | 2010-09-01 | 2011-01-12 | 朱金辉 | Full-automatic horizontal electronic tension tester |
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2013
- 2013-04-17 CN CN201310134349.XA patent/CN103234816B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006078358A (en) * | 2004-09-10 | 2006-03-23 | Toyo Seiki Seisakusho:Kk | Bend tester |
| CN101943646A (en) * | 2010-09-01 | 2011-01-12 | 朱金辉 | Full-automatic horizontal electronic tension tester |
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| "Development of a dovetail fretting fatigue fixture for turbine engine materials";Patrick J.Golden;《International Journal of Fatigue》;20090430;第31卷(第4期);第620-628页 * |
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| CN103234816A (en) | 2013-08-07 |
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