CN106483010A - Bearing for beam-columns experimental provision - Google Patents
Bearing for beam-columns experimental provision Download PDFInfo
- Publication number
- CN106483010A CN106483010A CN201610817446.2A CN201610817446A CN106483010A CN 106483010 A CN106483010 A CN 106483010A CN 201610817446 A CN201610817446 A CN 201610817446A CN 106483010 A CN106483010 A CN 106483010A
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- lower plywood
- top plate
- fixed vertical
- plate
- knife
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of bearing for beam-columns experimental provision, before and after top plate, the fixing transverse slat bottom of both sides is respectively equipped with top plate fixed vertical plate, regulating bolt placed in the middle is provided with the internal thread hole of the top plate fixed vertical plate, and the left side of top plate and/or right side are provided with top plate rule；The bottom of top plate is vertically provided with a upper edge of a knife；Lower plywood is fixedly connected on top plate bottom and Wei Yu two pieces of top plate fixed vertical plates between, ribbed stiffener is provided between the lower plywood fixed vertical plate of the bottom of the lower plywood left and right sides and lower plywood, have in lower plywood fixed vertical plate internal thread hole and its in be provided with eccentric throw regulating bolt, the front side of lower plywood and/or rear side are provided with lower plywood rule；The top of lower plywood is provided with a lower knife groove corresponding with the upper edge of a knife；The bearing is arranged in pairs.The present invention can realize unidirectional freely rotate, during experiment, test specimen is contacted with the lower plywood of bearing, can achieve one-directional rotation, while convenient adjustment eccentric throw.
Description
Technical field
The present invention relates to a kind of experimental provision for field of civil engineering, is particularly used for beam-columns experiment
The bearing of device.
Background technology
Pull-down component monolithic stability, pull-down component local are mainly covered in the illustrative experimental project of steel construction teaching surely
The content such as fixed, flexural member overall collapse and connection, the experimental project without bending component.In steel construction teaching is arranged, grind
Study carefully resistance to overturning in bending component plane and typically study Unilateral Pressing-bending component.Unilateral Pressing-bending component is except being subject to axial compressive force
Outside, also acted on by unidirectional moment of flexure, that is, need to carry out eccentric axially loaded, so being required to realize unidirectional freely rotate
And the convenient bearing for adjusting eccentric throw.At present, research bending component plane in monolithic stability using way knife edge hinged-support come
The hinged boundary condition in simulation end, is made up of upper slitter oralia, intermediate plate and lower edge of a knife plate, in the edge of a knife vertical with eccentric direction
Distance between heart line and test specimen cross-section centroid is for loading eccentric throw.But this bearing is several below presence for illustrative experiment
Individual problem：(1) Unilateral Pressing-bending component only needs to apply the eccentric throw in a direction, freely turns so only requiring and realizing one direction
Dynamic；(2) accuracy of the difficult and uncontrollable eccentric throw of eccentric throw is adjusted；(3) cannot accurate adjustment test specimen non-eccentricity direction
Between two parties.
Content of the invention
The purpose of the present invention, the exactly defect for overcoming above-mentioned prior art to exist, provide one kind for beam-columns
The bearing of experimental provision, when experiment is loaded component eccentric direction can accurate adjustment eccentric throw, placed in the middle in non-eccentricity direction, real
Overall collapse in existing moment of flexure plane, beam-ends close to freely rotating around moment of flexure direction, can not reverse, can free warpage preferably about
Bundle condition, improves the accuracy of experimental result.
In order to solve above-mentioned technical problem, the present invention is realized in：
A kind of bearing for beam-columns experimental provision, it is characterised in that：It includes top plate, lower plywood, fixation
Transverse slat, top plate fixed vertical plate, lower plywood fixed vertical plate, regulating bolt placed in the middle, eccentric throw regulating bolt and ribbed stiffener；
Before and after top plate 1, both sides connect one piece of fixing transverse slat 3 respectively, fix 3 bottom of transverse slat per block and are respectively equipped with one piece
Top plate fixed vertical plate 4, has internal thread hole in the top plate fixed vertical plate 4, is provided with regulating bolt placed in the middle 6 in internal thread hole,
The left side of top plate 1 and/or right side are provided with top plate rule 9；The bottom of top plate 1 is vertically provided with a upper edge of a knife 11；
Lower plywood 2 is fixedly connected on 1 bottom of top plate and Wei Yu two pieces of top plate fixed vertical plates 4 between, lower plywood 2 or so
The bottom of both sides connects one piece of lower plywood fixed vertical plate 5 respectively, is provided with and puts more energy between lower plywood fixed vertical plate 5 and the lower plywood 2
Rib 8, have in lower plywood fixed vertical plate 5 internal thread hole and its in be provided with eccentric throw regulating bolt 7, the front side of lower plywood 2 and/or
Rear side is provided with lower plywood rule 10；The top of lower plywood 2 is provided with a lower knife groove 12 corresponding with the upper edge of a knife；
Internal thread hole in the top plate fixed vertical plate and the symmetry axis of lower plywood；In lower plywood fixed vertical plate
The vertical symmetry axis in internal thread hole test specimen face corresponding thereto；The bearing is arranged in pairs.
The described bearing for beam-columns experimental provision, it is characterised in that：The upper edge of a knife is the V-shaped edge of a knife,
The lower knife groove is V-shaped cutter groove.
The invention has the beneficial effects as follows：Bearing lower plywood is provided with rule, and the bottom of the lower plywood left and right sides is welded respectively
One piece of lower plywood fixed vertical plate is connect, the eccentric throw regulating bolt of both sides withstands test specimen center by lower plywood fixed vertical plate,
Swivel bolt can make test specimen move in eccentric direction, can conveniently and accurately adjust eccentric throw.
Bearing top plate is provided with rule, and both sides are welded and fixed transverse slat, and the regulating bolt placed in the middle of both sides passes through top plate
Fixed vertical plate withstands lower plywood center, and rotating regulating bolt placed in the middle can make lower plywood together with test specimen jointly in non-eccentricity side
To movement, can facilitate and accurate adjustment test specimen is in the placed in the middle of non-eccentricity direction.
There is provided effective lateral support, can prevent component from the outer unstability of plane occurring.
Description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the axonometric drawing of the present invention.
Fig. 2 is the top view of the top section of the present invention.
Fig. 3 is A-A sectional view in Fig. 2.
Fig. 4 is 1-1 sectional view in Fig. 2.
Fig. 5 is the top view of the underclad portion of the present invention.
Fig. 6 is A-A sectional view in Fig. 5.
Fig. 7 is 1-1 sectional view in Fig. 5.
Fig. 8 is the application installation diagram of the present invention.
Fig. 9 is that bearing of the present invention is applied to the structural representation in the experimental provision of beam-columns.
Figure 10 is the axonometric drawing of jack keyset.
Figure 11 is the scheme of installation of jack keyset.
Figure 12 is the axonometric drawing of lateral support.
Figure 13 is the partial enlarged drawing of junction between bearing and jack keyset
In figure, 1. 2. lower plywood of top plate 3. fix 5. lower plywood fixed vertical plate of transverse slat 4. top plate fixed vertical plate
6. on 7. eccentric throw regulating bolt of regulating bolt placed in the middle, 8. ribbed stiffener, 9. top plate rule, 10. lower plywood rule 11.
16. jack of the edge of a knife 12. lower knife groove, 13. bolt hole, 14. test specimen, 15. bearing, 17. jack keyset 18. is laterally propped up
Support 19. reaction frame, 20. jack loading head, 21. edge of a knife plate, 22. inner sleeve, 23. outer sleeve, 24. connecting plate, 25. screw rod
26. fixing bolt, 27. nut, 28. base plate, 29. sleeve, 30. gypsum.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1：A kind of bearing for beam-columns experimental provision, it include top plate, lower plywood, fixing horizontal stroke
Plate, top plate fixed vertical plate, lower plywood fixed vertical plate, regulating bolt placed in the middle, eccentric throw regulating bolt and ribbed stiffener；
As in Figure 2-4：Four bolts hole 13 are had on top plate, and before and after top plate 1, both sides connect one piece admittedly respectively
Determine transverse slat 3,3 bottom of transverse slat is fixed per block and is respectively equipped with one piece of top plate fixed vertical plate 4, have in the top plate fixed vertical plate 4
Internal thread hole, is provided with regulating bolt placed in the middle 6 in internal thread hole, the left side of top plate 1 and/or right side are provided with top plate rule 9；
The bottom of top plate 1 is vertically provided with a upper edge of a knife 11, and the upper edge of a knife is the V-shaped edge of a knife；
As illustrated in figs. 5-7：Lower plywood 2 be fixedly connected on 1 bottom of top plate and be located at two pieces of top plate fixed vertical plates 4 it
Between, the bottom of 2 left and right sides of lower plywood connects one piece of lower plywood fixed vertical plate 5 respectively, the lower plywood fixed vertical plate 5 and lower plywood
Be provided with ribbed stiffener 8 between 2, have in lower plywood fixed vertical plate 5 internal thread hole and its in be provided with eccentric throw regulating bolt 7, lower floor
The front side of plate 2 and/or rear side are provided with lower plywood rule 10；The top of lower plywood 2 is provided with a lower knife corresponding with the upper edge of a knife
Groove 12, the lower knife groove are V-shaped cutter groove；
Internal thread hole in the top plate fixed vertical plate and the symmetry axis of lower plywood；In lower plywood fixed vertical plate
The vertical symmetry axis in internal thread hole test specimen face corresponding thereto；The bearing is arranged in pairs.
Internal thread hole, position of opening and 2 symmetry axis of lower plywood are opened in the top plate fixed vertical plate 4, are supported the use
Eccentric throw regulating bolt 7 is in order to adjust test specimen in the centering being not added with eccentric throw direction.In opening in the lower plywood fixed vertical plate 5
Screwed hole, the vertical symmetry axis in position of opening test specimen face corresponding thereto, regulating bolt placed in the middle 6 is supported the use in order to adjust
The eccentric throw of test specimen.
The present invention is used cooperatively with jack reaction frame, carries out the Unilateral Pressing-bending experiment of girder steel, the two of tested test specimen
End is respectively mounted bearing of the present invention, and is loaded by jack reaction frame, tests the mechanics such as bearing capacity, the deformation of test specimen special
Levy, specific work process is as follows：
As shown in figure 8, bearing of the present invention using when be all to use in pairs, two bearings are placed on the upper of test specimen 14
Lower two ends, test specimen 14 are flushed and centering along the side for having lower plywood rule 10 with lower plywood 2 of eccentric direction.Logical
Cross the eccentric throw regulating bolt 7 of rotation 2 both sides of lower plywood and lower plywood rule 10 is observed come the eccentric throw required for adjusting.Adjust
After having saved eccentric throw, eccentric throw regulating bolt holds out against test specimen.Regulating bolt placed in the middle 6 by 1 both sides of top plate is adjusting
Lower plywood 2 and test specimen, make test specimen placed in the middle in non-eccentricity direction, and after the completion of regulation, the regulating bolt placed in the middle 6 of both sides is pushed up
Tight lower plywood 2.
The above-mentioned description to embodiment is to be understood that and apply the present invention for ease of those skilled in the art.
Person skilled in the art obviously easily can make modification to embodiment, and the principle of the present invention is applied to other
Without through performing creative labour in embodiment.Therefore, the invention is not restricted to embodiment here, those skilled in the art's root
According to the announcement of the present invention, the improvement that makes for the present invention and modification all should be within protection scope of the present invention.
Embodiment 2
As shown in Figure 9：A kind of experimental provision of beam-columns, including reaction frame 19, jack 16, jack keyset
17th, bearing 15 and lateral support 18；Jack 16 is fixed on reaction frame 19, and power is passed by jack 16 by jack keyset 17
To on bearing 15, bearing 15 is arranged in pairs in 14 two ends of test specimen, and lateral support 18 is arranged in the middle part of test specimen.The reaction frame 19 is
The special reaction frame in laboratory, is typically made up of crossbeam, column, base, jacking system, hydraulic system, adjustment cushion block.General experiment
Room can process the reaction frame of suitable dimension, and " reaction frame " is prior art.The jack 16 is matched with reaction frame 19
Hydraulic jack, the jack 16 include the jack loading head 20 positioned at jack bottom；
As shown in figs. 10-11：The jack keyset includes base plate 28 and the sleeve 29 being welded on base plate, on base plate
Four bolts hole 13 are had, for plate 1 is connected at the middle and upper levels with bearing 15, jack loading head 20 is placed in sleeve 22, jack
With gypsum 30 come filling chink between loading head 20 and sleeve 22；
As shown in figs. 1-7：The bearing 15 include top plate 1, lower plywood 2, fixing transverse slat 3, top plate fixed vertical plate 4,
Lower plywood fixed vertical plate 5, regulating bolt placed in the middle 6, eccentric throw regulating bolt 7, ribbed stiffener 8, top plate rule 9 and lower plywood are carved
Degree chi 10；Four bolts hole 13 are had on top plate, and before and after top plate, both sides are respectively welded one piece of fixing transverse slat 3, solid per block
Determine 3 bottom of transverse slat and one piece of top plate fixed vertical plate 4 is respectively welded, in the top plate fixed vertical plate 4, have internal thread hole, internal thread
Regulating bolt placed in the middle 6 is provided with hole, and top plate rule 9 is located at the left side of top plate 1 and/or right side；The lower plywood 2 is located at
Hold out against between two pieces of top plate fixed vertical plates 4 and by regulating bolt placed in the middle 6, the bottom of 2 left and right sides of lower plywood is respectively welded
One piece of lower plywood fixed vertical plate 5, is provided with ribbed stiffener 8, lower plywood fixed vertical plate 5 between lower plywood fixed vertical plate 5 and the lower plywood 2
On have internal thread hole and its in be provided with eccentric throw regulating bolt 7, lower plywood rule 10 located at lower plywood 2 front side and/or
Rear side, the vertical symmetry axis in the test specimen face corresponding thereto of the internal thread hole in lower plywood fixed vertical plate 5, according to lower plywood 2
On lower plywood rule 10 support the use regulating bolt placed in the middle 6 to adjust the eccentric throw of test specimen 14；The top plate is fixed perpendicular
Internal thread hole on plate 4 and the symmetry axis of lower plywood 2, support the use eccentric throw regulating bolt 7 according to top plate rule 9
To adjust centering of the test specimen 14 in non-eccentricity on direction；The bearing 15 is arranged in pairs；
As shown in figure 12：The lateral support 18 include a pair of edge of a knife plate 21, inner sleeve 22, outer sleeve 23, connecting plate 24,
Screw rod 25, fixing bolt 26 and nut 27；Edge of a knife plate 21 is arranged in pairs clamps 28 both sides of test specimen test specimen, and by screw rod 25 and spiral shell
Female 27 fix, and 22 one end of inner sleeve is connected with edge of a knife plate 21, and 22 other end of inner sleeve is stuck in 23 one end of outer sleeve and by solid
Determine bolt 26 to hold out against, 23 vertical direction of outer sleeve just blocks inner sleeve 22, horizontal direction leaves mobile space and is easy to adjust partially
The heart away from when inner sleeve 22 23 other end of mobile outer sleeve and 24 side of connecting plate weld, 24 opposite side of connecting plate is welded on counter-force
On the inside of the vertical rod of frame 19；
As shown in figure 13：16 upper end of the jack is put located at the entablature bottom of reaction frame 19, jack loading head 20
In sleeve 29, between jack loading head 20 and sleeve 29, pass through 30 filling chink of gypsum, the base plate of jack keyset 17
28 and the top plate 1 of a bearing 15 be bolted, the top plate 1 of another bearing 15 is on the base of reaction frame 19
Portion, the two ends of test specimen 14 are located between the eccentric throw regulating bolt 7 of two bearings 15 respectively.
Test specimen 14 adopts H type section test specimen, and jack 16 is connected with reaction frame 19, the top plate 1 of bearing 15 respectively with
Jack keyset 17 and the connection of 19 base of reaction frame, jack loading head 20 are placed in 17 sleeve 29 of jack keyset.Examination
Part 14 is placed between the top plate 1 of bearing 15, along the side for having lower plywood rule 10 with lower plywood 2 of eccentric direction
Flush and centering.Then 28 liang of side positions of test specimen are stuck in edge of a knife plate 21 and fixation is tightened by 25 nut 27 of screw rod.Outer sleeve
23 are fixed with reaction frame 1 by connecting plate 24, and inner sleeve 22 is socketed with outer sleeve 23 and vertical direction is just blocked with outer sleeve 23
Firmly.
By rotating the eccentric throw regulating bolt 7 of 2 both sides of lower plywood and observing lower plywood rule 10 come required for adjusting
Eccentric throw.After having adjusted eccentric throw, eccentric throw regulating bolt holds out against test specimen 14, and the fixing bolt 26 that tightens on outer sleeve 23 is pushed up
Tight 22 both sides of inner sleeve.Lower plywood 2 and test specimen 14 are adjusted by the regulating bolt placed in the middle 6 of 1 both sides of top plate, so that test specimen 14 is existed
Non-eccentricity direction is placed in the middle, and after the completion of regulation, the regulating bolt placed in the middle 6 of both sides holds out against lower plywood 2.
The above-mentioned description to embodiment is to be understood that and apply the present invention for ease of those skilled in the art.
Person skilled in the art obviously easily can make modification to embodiment, and the principle of the present invention is applied to other
Without through performing creative labour in embodiment.Therefore, the invention is not restricted to embodiment here, those skilled in the art's root
According to the announcement of the present invention, the improvement that makes for the present invention and modification all should be within protection scope of the present invention.
Claims (2)
1. a kind of bearing for beam-columns experimental provision, it is characterised in that：It includes top plate, lower plywood, fixing horizontal stroke
Plate, top plate fixed vertical plate, lower plywood fixed vertical plate, regulating bolt placed in the middle, eccentric throw regulating bolt and ribbed stiffener；
Before and after top plate, both sides connect one piece of fixing transverse slat respectively, fix transverse slat bottom per block and are respectively equipped with one piece of top plate admittedly
Determine riser, in the top plate fixed vertical plate, internal thread hole is had, in internal thread hole, be provided with regulating bolt placed in the middle, the left side of top plate
And/or right side is provided with top plate rule；The bottom of top plate is vertically provided with a upper edge of a knife；
Lower plywood is fixedly connected on top plate bottom and Wei Yu two pieces of top plate fixed vertical plates between, under the lower plywood left and right sides
Portion connects one piece of lower plywood fixed vertical plate respectively, is provided with ribbed stiffener between lower plywood fixed vertical plate and the lower plywood, and lower plywood is solid
Determine to have on riser internal thread hole and its in be provided with eccentric throw regulating bolt, the front side of lower plywood and/or rear side are provided with lower plywood
Rule；The top of lower plywood is provided with a lower knife groove corresponding with the upper edge of a knife；
Internal thread hole in the top plate fixed vertical plate and the symmetry axis of lower plywood；Interior spiral shell in lower plywood fixed vertical plate
The vertical symmetry axis in pit test specimen face corresponding thereto；The bearing is arranged in pairs.
2. the bearing for beam-columns experimental provision according to claim 1, it is characterised in that：The upper edge of a knife is
The V-shaped edge of a knife, the lower knife groove are V-shaped cutter groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817446.2A CN106483010B (en) | 2016-09-12 | 2016-09-12 | Support for beam-columns experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817446.2A CN106483010B (en) | 2016-09-12 | 2016-09-12 | Support for beam-columns experimental provision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106483010A true CN106483010A (en) | 2017-03-08 |
| CN106483010B CN106483010B (en) | 2019-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817446.2A Active CN106483010B (en) | 2016-09-12 | 2016-09-12 | Support for beam-columns experimental provision |
Country Status (1)
| Country | Link |
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| CN (1) | CN106483010B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132130A (en) * | 2017-06-14 | 2017-09-05 | 黄河科技学院 | A kind of 3 points, four-point bending test machine adjusts fixture with centering |
| CN109186980A (en) * | 2018-09-17 | 2019-01-11 | 南京林业大学 | A kind of one-way eccentric loading device of continuously adjustable examination |
| CN109946033A (en) * | 2019-01-04 | 2019-06-28 | 吉林省电子信息产品检验研究院 | A kind of three-dimensional vibrating test fixture for tablet computer and mobile phone |
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| JPH10104144A (en) * | 1996-09-27 | 1998-04-24 | Mamoru Kawaguchi | Apparatus for testing structural material |
| CN102809508A (en) * | 2012-07-20 | 2012-12-05 | 上海交通大学 | Load positioning device for structural test |
| CN104458408A (en) * | 2014-12-24 | 2015-03-25 | 东南大学 | Novel cylindrical hinge rotating bracket for static force loading experiment |
| CN105241751A (en) * | 2015-09-28 | 2016-01-13 | 哈尔滨工业大学 | Assembly clamper for sandwich structure board lateral compression test |
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2016
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| JPH10104144A (en) * | 1996-09-27 | 1998-04-24 | Mamoru Kawaguchi | Apparatus for testing structural material |
| CN102809508A (en) * | 2012-07-20 | 2012-12-05 | 上海交通大学 | Load positioning device for structural test |
| CN104458408A (en) * | 2014-12-24 | 2015-03-25 | 东南大学 | Novel cylindrical hinge rotating bracket for static force loading experiment |
| CN105241751A (en) * | 2015-09-28 | 2016-01-13 | 哈尔滨工业大学 | Assembly clamper for sandwich structure board lateral compression test |
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| 殷晓三 等: "《对中调平刀口铰支座的设计》", 《科技创新导报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132130A (en) * | 2017-06-14 | 2017-09-05 | 黄河科技学院 | A kind of 3 points, four-point bending test machine adjusts fixture with centering |
| CN109186980A (en) * | 2018-09-17 | 2019-01-11 | 南京林业大学 | A kind of one-way eccentric loading device of continuously adjustable examination |
| CN109946033A (en) * | 2019-01-04 | 2019-06-28 | 吉林省电子信息产品检验研究院 | A kind of three-dimensional vibrating test fixture for tablet computer and mobile phone |
| CN109946033B (en) * | 2019-01-04 | 2024-01-26 | 吉林省电子信息产品检验研究院 | Three-dimensional vibration test fixture for tablet personal computer and mobile phone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106483010B (en) | 2019-04-02 |
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Inventor after: Guo Xiaonong Inventor after: Zhu Shaojun Inventor after: Wang Tianchun Inventor before: Guo Xiaonong Inventor before: Wang Tianchun |
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