CN206618517U - A kind of load device of car light lampshade stress mornitoring - Google Patents
A kind of load device of car light lampshade stress mornitoring Download PDFInfo
- Publication number
- CN206618517U CN206618517U CN201720215334.XU CN201720215334U CN206618517U CN 206618517 U CN206618517 U CN 206618517U CN 201720215334 U CN201720215334 U CN 201720215334U CN 206618517 U CN206618517 U CN 206618517U
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- China
- Prior art keywords
- adjusting slider
- hole
- car light
- load device
- stress mornitoring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of load device of car light lampshade stress mornitoring, including frame structure and the loading structure being arranged in frame structure, the loading structure can be slided in frame structure, and the frame structure includes base, working plate and the support column being arranged between base and working plate；The loading structure includes upper adjusting slider, the lower adjusting slider being fixedly connected with upper adjusting slider, the top board being arranged on below lower adjusting slider and the lower platen being arranged on below top board, unit seat is fixedly installed on the upper adjusting slider, pressure screw bolt axle is equipped with the unit seat, the upper end of the pressure screw bolt axle is equipped with worm gear, the worm gear side engagement sets worm screw, and the lower end of the pressure screw bolt axle is threadedly coupled through upper adjusting slider and lower adjusting slider with top board.The utility model, which has, loads convenient, easily operated, visual good, simple in construction, solves the complexity and trouble of conventional car light lampshade stress mornitoring process.
Description
Technical field
The utility model is related to stress detection device technical field, and in particular to a kind of load of car light lampshade stress mornitoring
Device.
Background technology
At present, automobile lamp lampshade is typically all plastic products, relatively more crisp, and easily broken, not intact car light will necessarily be given
Driving brings potential safety hazard.Therefore, producer has to pass through stress mornitoring link when producing lampshade, if lampshade is not by detection,
Its internal residual stress existed can not just be learnt, it is possible to cause lampshade to rupture or uneven, not only have impact on it is attractive in appearance,
Also unsafe factor is brought to light.
Certainly, the detection of residual stress is also that method is a lot, and seldom specifically designed for the special equipment of car light lampshade.In
State's utility model application number 201410609162.5 discloses a kind of residual stress blind hole detection method of component, i.e., bored on workpiece
One small through hole or blind hole, are released the stress of measured point, and measure release by the strain gauge being attached in advance around hole
Dependent variable, residual stress is calculated further according to elastic principle, although this method can also detect the residual stress of lampshade, is
A kind of destructive testing method is substantially improper when component is valuable part；Chinese utility model application number
201310429633.X discloses a kind of detection method of residual stress, for the detection of plastic products, by by tested product
Immerse in corrosion solution, entry time setting value is reached in the immersion time, if taking out tested its face checking of product or surface shape
Into powdered shot-like particle, then there is residual stress in tested product, unqualified, this method only detect whether to have residual stress and
Residual stress size is not measured, and there is destruction to product in this method.Chinese utility model application number
201210073579.5 disclosing a kind of vestibule near surface residual stress supersonic detection device, the device is passed using arrayed ultrasonic
Sensor R-T unit, can be achieved multi-point sampler in axial stress circumferential direction, and this method is still detected after workpiece blind hole
Residual stress, exists to component and destroys.
The utility model is a kind of car light lampshade stress detection device, and the device is used by adding certain pressure to lampshade
Strained situation on strain detecting equipment detection lampshade near power load(ing) point, so that by calculating residual stress.This side
Method will not damage test block, and can calculate residual stress situation again, and it is for ensureing the quality and every technology of product
Index all plays an important roll.
Utility model content
To solve problems of the prior art there is provided wide application, strong adaptability, easy to maintenance, with good
A kind of load device of car light lampshade stress mornitoring of application prospect.
The technical solution of the utility model is as follows：
A kind of load device of car light lampshade stress mornitoring, it is characterised in that including frame structure and be arranged on framework knot
Loading structure on structure, the loading structure can be slided in frame structure, and the frame structure includes base, working plate and set
Put the support column between base and working plate；The loading structure includes upper adjusting slider, is fixedly connected with upper adjusting slider
Lower adjusting slider, the top board being arranged on below lower adjusting slider and the lower platen being arranged on below top board, the up-regulation
It is fixedly installed on section sliding block in unit seat, the unit seat and is equipped with pressure screw bolt axle, the upper end of the pressure screw bolt axle is matched somebody with somebody
Close and worm gear is set, the worm gear side engagement sets worm screw, the lower end of the pressure screw bolt axle passes through upper adjusting slider and downward
Section sliding block is threadedly coupled with top board, and the upper adjusting slider, lower adjusting slider, top board and lower platen end positions are provided with circle
Cylinder guide rod is equipped with post guide rod hole, the cylinder guide rod hole, cylinder guide rod end is fixedly connected with lower platen, it is described under
Spring is fixedly installed between the top board and lower platen provided with one group of load head in pressing plate bottom.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that described worm screw one end, which is provided with, to be easy to
It rotates the handle of regulation, and handle section is Z-shape, and described handle one end is radially provided with a screw thread for being connected with worm screw
Hole, the handle other end is provided with taper knob.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that the base both sides are along its width
Direction is provided with the screwed hole for being used for installing support column, and base centre position is provided with rectangle hollow out；The support column two ends are equal
It is light bar segment between shoulder, end is thread segment provided with shoulder.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that the working plate is in the width direction
The through hole for being used for installing support column is provided with, working plate centre position is provided with rectangle hollow out, and the both sides of rectangle hollow out are provided with
Chute.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that provided with pressure in the middle of the top board
Power screw rod axis hole is simultaneously provided with the mounting hole for connecting spring on pressure screw bolt axis hole side；Being provided with the middle of the lower platen is used for
The mounting hole of connecting spring, lower end, which is provided with, is used for the ladder chute that load head is slided, and the lower platen two ends are provided with lower platen
End cap, lower platen end cap is provided with the adjusting screw rod for load head position adjustments, and adjusting screw rod end, which is provided with, is easy to it to revolve
The handle turned.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that the load head includes sliding block
And the contact of slider bottom is arranged on, the slider shape is engaged with the ladder chute of lower platen, and sliding block centre position is along ladder
Shape chute direction is provided with tapped through hole；The contact uses the combining structure of round platform and semi-round ball.
A kind of load device of described car light lampshade stress mornitoring, it is characterised in that the face of cylinder of the cylinder guide rod
Provided with the scale value for reading applying power size.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that described unit seat one end is provided with one
To worm seat, worm seat is provided with semiaxis bearing bore, and semiaxis bearing bore is equipped with bearing upper cover, and each worm seat upper end is equipped with use
In the screwed hole of connection bearing upper cover；Unit seat centre position is provided with through hole, and upper plane and lower plane are equipped with big for installing
The bearing hole of bearing, the corner of unit seat respectively has one to be used for the through hole of adjusting slider in bolt connection.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that the upper adjusting slider two ends are set
There is the step being engaged with the chute on working plate, centre position is provided with what is be engaged with the rectangle hollow out position on working plate
Step, the upper adjusting slider is provided with the screw-threaded counterbore corresponding with the through hole on the corner of unit seat；The upper regulation is slided
Block and lower adjusting slider two ends are equipped with the corresponding screwed hole in position, and centre position is equipped with the corresponding pressure screw bolt axle in position
Hole.
The load device of described a kind of car light lampshade stress mornitoring, it is characterised in that the pressure screw bolt axle is provided with four
Section, is followed successively by pressure thread segment, shoulder section, light bar segment and minor thread section from top to bottom, and the light bar segment is set close to port
There is keyway.
The beneficial effects of the utility model are：1）The utility model, which has, loads convenient, easily operated, visual good, knot
Structure is simple, solves the complexity and trouble of conventional car light lampshade stress mornitoring process.
2）The utility model utilizes the auto-lock function of worm gear device, during to pressure screw bolt axle rotary presser
Can be pressurizeed equilibrium, and pressurization can be maintained at a particular pressure always after terminating.
3）The utility model utilizes Hooke's law, compression spring is provided with pressing mechanism, in the side of cylinder guide rod
Scale is labelled with, pressure value can be read in time after the completion of pressurization, is easy to follow-up calculating.
4）The utility model is provided with the chute of load head in lower platen lower surface, is carried while being adjusted using adjusting screw rod
The position of lotus pressure head, is labelled with scale in lower platen side, can read distance of two load heads relative to centre position, so that
Calculate the magnitude of load of two pressure heads.
5）The utility model uses the contact end of load head to be 1-2 millimeters of plane for radius, so as to ensure loading zone
Domain is a disc, it is to avoid stress concentration, improves accuracy of detection.
6）The utility model is easy to the position blending bolt needed for being moved upward to along chute side using adjusting slider up and down
Fastening.
Brief description of the drawings
Fig. 1 is overall exploded perspective view of the present utility model；
Fig. 2 is overall structure diagram of the present utility model；
Fig. 3 is the structural representation of the utility model frame structure；
Fig. 4 is the structural representation of the utility model loading structure；
Fig. 5 is the structural representation that utility model works are installed；
In figure：1- bases, 2- support columns, 3- adjusting screw rods, 4- lower platen end caps, 5- load heads, 6- lower platens, 7- circles
Adjusting slider under post guide rod, 8- springs, 9- top boards, 10- primary nuts, 11-, 12- working plates, the upper adjusting sliders of 13-, 14- is big
Nut, 15- stove bolts, 16- pressure screw bolt axles, the big bearings of 17-, 18- handles, 19- units seat, 20- worm gears, 21- worm screws, 22-
Key, 23- pads, 24- big nuts, 25- bearing upper covers, the small bearings of 26-.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As Figure 1-5, a kind of load device of car light lampshade stress mornitoring includes base 1, support column 2, adjusting screw rod
3rd, lower platen end cap 4, load head 5, lower platen 6, cylinder guide rod 7, spring 8, top board 9, primary nut 10, lower adjusting slider
11st, working plate 12, upper adjusting slider 13, big nut 14, stove bolt 15, pressure screw bolt axle 16, big bearing 17, handle 18, unit
Seat 19, worm gear 20, worm screw 21, key 22, pad 23, big nut 24, bearing upper cover 25 and small bearing 26.Distinguish at the two ends of support column 2
It is threadedly coupled with base 1 and working plate 12, upper adjusting slider 13 is arranged on working plate with lower adjusting slider 11 by stove bolt 15
On 12, unit seat 19 by king-bolt 24 be arranged on upper adjusting slider 13 on, big bearing 17 be arranged on unit seat 19 on plane and
Lower plane, pressure screw bolt axle 16 coordinates with big bearing 17 to be arranged on unit seat 19, and worm gear 20 is arranged on pressure by the connection of key 22
Power screw shaft 16, big nut 14 and pad 23, which are arranged on pressure screw bolt axle 16, to be used to fasten worm gear 20, and small bearing 26 is arranged on
Above unit seat 19, worm screw 21 is arranged on unit seat 19 and is engaged with small bearing 26, and bearing upper cover 25 is arranged on unit seat
Connected on 19 with king-bolt 24, handle 18 is arranged on worm screw 21, cylinder guide rod 7 passes through upper adjusting slider 13 and lower adjusting slider
11, cylinder guide rod 7 is engaged through top board 9 and with the screw thread of pressure screw bolt axle 16, and lower platen 6 is connected with cylinder guide rod 7, spring 8
It is mounted between top board 9 and lower platen 6, lower platen end cap 4 is arranged on the two ends of lower platen 6, load head 5 can pushed
Slided in the chute of plate 6, adjusting screw rod 3 is used to adjust the position in chute of load head 5.The both sides of base 1 are respectively set along along cross direction
The lower end cooperation that being equipped with three holes is used for support column 2 is installed, and has a rectangle hollow out in the middle of base.The two ends of support column 2 have
It is bar on the inside of shoulder, shoulder, outside is thread segment, can be installed into corresponding hole on base 1 and working plate 12, tight with nut
Gu.Working plate 12 is each provided with three holes along along cross direction and is used to coordinate with the upper end of support column 2 to install, centre have one it is rectangular
Shape hollow out, size is as the rectangle hollow out of base 1, and working plate 12 is provided with two chutes, respectively the two of rectangle hollow out
Side.The section of handle 18 is in Z-shaped, and 18 connecting worm of handle 21 has been disposed radially a screwed hole on one end, and handle 18 is another
End can install taper knob, be easy to operation.19 one end of unit seat, which are provided with a pair of worm seats, worm seat, semiaxis bearing bore and bearing
Upper lid 25 coordinates for installing bearing to support worm screw, and each worm seat upper end has two screwed holes to be used to connect bearing upper cover
25；Unit 19 interpositions of seat are equipped with through hole, and upper plane and lower plane have bearing hole to be used to install big bearing 17, unit seat 19
Corner respectively have a through hole be used for bolt connection on adjusting slider 13.Worm gear 20 and worm screw 21 are a pair of standard components, for band
Dynamic pressure screw shaft 16 rotates and plays a part of self-locking.The upper two ends of adjusting slider 13 are in the position coordinated with the chute of working plate 12
There is step, step is slided in chute, there are two screwed holes on step；Rectangular with working plate 12 in the middle of upper adjusting slider 13
Shape hollow out cooperation position has step, and respectively there is a cylinder guide rod hole at step two ends, and there is a pressure screw bolt axis hole centre；This is outside upper
Adjusting slider 13 has 6 screw-threaded counterbores corresponding with the hole on unit seat 19 above.Respectively there are two screw threads at the lower two ends of adjusting slider 11
Through hole is corresponding with the upper position of adjusting slider 13；Two cylinder guide rod holes and a pressure screw bolt axis hole are provided with close to middle position
It is corresponding with the upper position of adjusting slider 13.16 points of pressure screw bolt axle is four sections, pressure thread segment is followed successively by from top to bottom, for adjusting
The position of top board 9；Secondly it is a shoulder, for withstanding the big bearing 17 being arranged on below unit seat 19；It is a polished rod again,
For coordinating through unit seat 19 with the big bearing 17 above unit seat 19, port is provided with keyway, for connecting snail
Wheel 20；Final stage is minor thread section, and worm gear 20 is fastened for nut.There is scale on the face of cylinder of cylinder guide rod 7, for reading
The value of the power size of application.Top board 9, is provided at both ends with cylinder guide rod hole, and centre is set for pressure screw bolt axis hole and on hole side
There is the hole for connecting spring 8.Lower platen 6 is connected with cylinder guide rod 7, and centre is provided with the hole for connecting spring 8；Lower end is set
Ladder chute is equipped with, load head 5 is slided wherein；Lower platen 6, which is provided at both ends with screwed hole, to be used to connect lower platen end cap
4.The screwed hole that screwed hole is provided with lower platen end cap 4 with the two ends of lower platen 6 is corresponding, and centre position is provided with a screw thread
Hole.The Slipper of load head 5 is that trapezium structure coordinates with the ladder chute of lower platen 6, is provided with the middle of sliding block along chute direction
Tapped through hole；Contact part is shaped as the assembly of round platform and semi-round ball.The one end of adjusting screw rod 3 is the handle for rotation, its
Remaining part is divided into screw rod, for adjusting the position of load head 5.
According to the description of above part and mechanism, the car light lampshade stress detection device such as Fig. 2 is assembled into, according still further to Fig. 5
Arranged in pairs or groups with car light lampshade fixture, be mounted to working condition.The utility model can make stress mornitoring according to information above and apply load
The embodiment of lotus.
The first step：A kind of load device of car light lampshade stress mornitoring as shown in Figure 2 is installed to the car shown in Fig. 5
On lamp lampshade fixture, the base of a kind of base 1 of the load device of car light lampshade stress mornitoring and car light lampshade fixture passes through pin
Connection, easy to disassemble and regulation relative position.
Second step：The car light lampshade and strain detecting equipment of stress mornitoring needed for preparing, are pressed from both sides with car light lampshade clamping device
Firmly car light lampshade, it is determined that on lampshade imposed load position, and loading surface needed for adjusting makes its holding level.
3rd step：Check a kind of load device of car light lampshade stress mornitoring：Scale is zeroed, and spring 8 is in normal condition,
Load head 5 is in initial position etc..
4th step：Start patch foil gauge and on-load pressure：The foil gauge of preparation is attached to the vicinity of lampshade load(ing) point, adjusted
Good strain detecting equipment；Adjusting slider 13 and lower adjusting slider 11 adjust load head 5 to pressure-loaded position in movement
Put, contact is just contacted lampshade.Rotary handle 18, rotates pressure screw bolt axle 16, top board 9 by worm gear 20 and worm screw 21
In downward direction moved along pressure screw bolt axle 16, the load head 5 that spring 8 starts on compression, lower platen 6, which starts to apply car light, presses
Power.According to experimental arrangement, car light strained situation is tested at various pressures and strain data is recorded.
5th step：Start unloading pressure and remove foil gauge, restPose：Foil gauge is removed from lampshade, should
Become detection device to withdraw；Reversing handwheel 18, makes top board 9 rise to car light lampshade and can be taken off, and takes out after lampshade, makes pressure
The lower face of plate 9 is moved at the zero graduation line of the scale of cylinder guide rod 7, and the adjusting screw rod 3 of regulation lower platen 6 makes load head 5
It is moved to initial position.
6th step：Check with safeguarding：Each part service condition of stress detection device is checked, if thering is part to be damaged, in time more
Change or repair damaged parts, end-of-job.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Belonging to those skilled in the art can be according to lampshade shape, the change of the detection factor such as environment, to described specific implementation
Example is made various modifications or supplement or substituted using similar mode, such as handle can be substituted with motor power, this
Plant and simply replace without departing from spirit of the present utility model.
Claims (10)
1. a kind of load device of car light lampshade stress mornitoring, it is characterised in that including frame structure and be arranged on frame structure
On loading structure, the loading structure can slide in frame structure, and the frame structure includes base（1）, working plate
（12）And it is arranged on base（1）With working plate（12）Between support column（2）；The loading structure includes upper adjusting slider
（13）And upper adjusting slider（13）The lower adjusting slider being fixedly connected（11）, be arranged on lower adjusting slider（11）The upper pressure of lower section
Plate（9）And it is arranged on top board（9）The lower platen of lower section（6）, the upper adjusting slider（13）On be fixedly installed unit seat（19）,
The unit seat（19）Inside it is equipped with pressure screw bolt axle（16）, the pressure screw bolt axle（16）Upper end be equipped with worm gear
（20）, the worm gear（20）Side engagement sets worm screw（21）, the pressure screw bolt axle（16）Lower end pass through upper adjusting slider
（13）And lower adjusting slider（11）With top board（9）Threaded connection, the upper adjusting slider（13）, lower adjusting slider（11）, on
Pressing plate（9）And lower platen（6）End positions are provided with cylinder guide rod hole, the cylinder guide rod hole and are equipped with cylinder guide rod（7）,
Cylinder guide rod（7）End and lower platen（6）It is fixedly connected, the lower platen（6）Bottom is provided with one group of load head（5）, it is described
Top board（9）With lower platen（6）Between spring is fixedly installed（8）.
2. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the worm screw
（21）One end is provided with the handle for being easy to it to rotate regulation（18）, handle（18）Section is Z-shape, the handle（18）One end is radially
It is used for provided with one and worm screw（21）The screwed hole of connection, handle（18）The other end is provided with taper knob.
3. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the base
（1）Both sides are provided with along its width to be used to install support column（2）Screwed hole, base（1）Centre position is provided with rectangle
Hollow out；The support column（2）It is light bar segment that two ends, which are equipped between shoulder, shoulder, and end is thread segment.
4. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the working plate
（12）Being provided with the width direction is used to install support column（2）Through hole, working plate（12）Centre position is provided with rectangle hollow out,
The both sides of rectangle hollow out are provided with chute.
5. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the top board
（9）Centre is provided with for connecting spring provided with pressure screw bolt axis hole and on pressure screw bolt axis hole side（8）Mounting hole；It is described to push
Plate（6）Centre is provided with for connecting spring（8）Mounting hole, lower end be provided be used for load head（5）The ladder chute of slip,
The lower platen（6）Two ends are provided with lower platen end cap（4）, lower platen end cap（4）Being provided with is used for load head（5）Position adjustments
Adjusting screw rod（3）, adjusting screw rod（3）End is provided with the handle for being easy to it to rotate.
6. a kind of load device of car light lampshade stress mornitoring according to claim 1 or 5, it is characterised in that the load
Lotus pressure head（5）Including sliding block and it is arranged on the contact of slider bottom, the slider shape and lower platen（6）Ladder chute match
Close, sliding block centre position is provided with tapped through hole along ladder chute direction；The contact is using round platform and the combination knot of semi-round ball
Structure.
7. the load device of a kind of car light lampshade stress mornitoring according to claim 1, it is characterised in that the cylinder is led
Bar（7）The face of cylinder be provided with and be used to read the scale value of applying power size.
8. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the unit seat
（19）One end is provided with semiaxis bearing bore provided with a pair of worm seats, worm seat, and semiaxis bearing bore is equipped with bearing upper cover（25）, each
Worm seat upper end is equipped with for connecting bearing upper cover（25）Screwed hole；Unit seat（19）Centre position is provided with through hole, upper flat
Face and lower plane are equipped with for installing big bearing（17）Bearing hole, unit seat（19）Corner respectively have one be used for bolt connect
Connect adjusting slider（13）Through hole.
9. the load device of a kind of car light lampshade stress mornitoring according to claim 1 or 4, it is characterised in that on described
Adjusting slider（13）Two ends are provided with and working plate（12）On the step that is engaged of chute, centre position is provided with and working plate（12）
On the step that is engaged of rectangle hollow out position, the upper adjusting slider（13）It is provided with and unit seat（19）Corner on
The corresponding screw-threaded counterbore of through hole；The upper adjusting slider（13）And lower adjusting slider（11）Two ends are equipped with the corresponding spiral shell in position
Pit, centre position is equipped with the corresponding pressure screw bolt axis hole in position.
10. a kind of load device of car light lampshade stress mornitoring according to claim 1, it is characterised in that the pressure
Screw shaft（16）Provided with four sections, pressure thread segment, shoulder section, light bar segment and minor thread section, the polished rod are followed successively by from top to bottom
Section is provided with keyway close to port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215334.XU CN206618517U (en) | 2017-03-07 | 2017-03-07 | A kind of load device of car light lampshade stress mornitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215334.XU CN206618517U (en) | 2017-03-07 | 2017-03-07 | A kind of load device of car light lampshade stress mornitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206618517U true CN206618517U (en) | 2017-11-07 |
Family
ID=60231899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720215334.XU Withdrawn - After Issue CN206618517U (en) | 2017-03-07 | 2017-03-07 | A kind of load device of car light lampshade stress mornitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206618517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969858A (en) * | 2017-03-07 | 2017-07-21 | 浙江工业大学 | A kind of load device of car light lampshade stress mornitoring |
-
2017
- 2017-03-07 CN CN201720215334.XU patent/CN206618517U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969858A (en) * | 2017-03-07 | 2017-07-21 | 浙江工业大学 | A kind of load device of car light lampshade stress mornitoring |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171107 Effective date of abandoning: 20220923 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171107 Effective date of abandoning: 20220923 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |