CN109813603A - A kind of child's bicycle stabilizer intensity detection testing machine - Google Patents
A kind of child's bicycle stabilizer intensity detection testing machine Download PDFInfo
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Abstract
The present invention provides a kind of child's bicycle stabilizer intensity detection testing machine, including pedestal, back-and-forth motion mechanism, test specimen fixed frame, loading mechanism fixed frame and loading mechanism, the loading mechanism include vertical plate, decelerating motor and force application mechanism.Child's bicycle to be measured is mounted on test specimen fixed frame, automatic to carry out normal load test by the vertical face child's bicycle stabilizer of the force application board of force application mechanism；It is rotated again by decelerating motor by the force application board longitudinal direction face child's bicycle stabilizer of force application mechanism, it is automatic to carry out longitudinal load test；Using load servo motor and force snesor can it is reliable and stable, accurately realize loading procedure, the offset of stabilizer can be accurately measured using displacement sensor；It only needs once to be loaded to test specimen, be automatically performed to stabilizer normal load and longitudinal load test, it is not only easy to operate, labor intensity is low, highly-safe, and substantially increase detection efficiency and measurement accuracy.
Description
Technical field
The present invention relates to child's bicycle detection device technical field, specifically a kind of child's bicycle stabilizer intensity inspection
Survey testing machine.
Background technique
Child's bicycle stabilizer refers to the auxiliary wheel of child's bicycle rear-wheel two sides, facilitates bicyclist and keeps balance.
In order to ensure the riding safety of children, in international standard ISO 8098:2014 " bicycle-child's bicycle safety requirements " and state
The correlation of child's bicycle stabilizer strength test is wanted in family standard GB 14746-2006 " child's bicycle safety requirements "
It asks.Child's bicycle stabilizer intensity detection includes that stabilizer vertical load test and stabilizer longitudinal load test two kinds.
Traditional child's bicycle stabilizer intensity detection is after bicycle is fixed, and manual operation loads the counterweight of 300N
On stabilizer, be difficult control every time steady load without impact, especially on stabilizer alternately and repeatedly load so that testing staff
Labor intensity greatly increases, and stabilizer permanent deformation, measurement error are measured using traditional straight steel ruler or steel tape
It is very big, measurement accuracy it is difficult to ensure that.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of child's bicycle stabilizer is strong
Degree detection testing machine.
In order to achieve the above objectives, the technical solution adopted by the present invention to solve the technical problems is: a kind of child's bicycle
Stabilizer intensity detection testing machine, comprising:
Pedestal；
It is moved forward and backward mechanism, is mounted on the base；
Test specimen fixed frame, is used to fix child's bicycle to be detected, and bottom is fixed on the back-and-forth motion mechanism
On sliding panel；
Loading mechanism fixed frame, bottom are fixedly mounted on the base；
Loading mechanism comprising vertical plate, decelerating motor and force application mechanism, the vertical plate are vertically installed at the loading mechanism
On fixed frame, the decelerating motor is horizontally fixed on the vertical plate, and the force application mechanism includes runing rest, load servo electricity
Machine, load force machine, force snesor, force application board and displacement sensor, the runing rest are connected to the defeated of the decelerating motor
On shaft, the load force machine is mounted on the runing rest, and the load servo motor is connected to the load force
The input terminal of machine, the force application board are connected on the telescopic shaft of load force machine through the force snesor, institute's displacement sensors
It is mounted between the force application board and runing rest；The telescopic shaft of the load servo motor rotate driving load force machine is flexible
Movement, and then force application board is driven to apply pressure to child's bicycle stabilizer；The decelerating motor drives the force application mechanism to turn
It is dynamic, normal load and longitudinal load can be applied to child's bicycle stabilizer by several times by force application mechanism.
Compared to the prior art, child's bicycle to be measured is mounted on test specimen fixed frame by the present invention, by force application mechanism
The vertical face child's bicycle stabilizer of force application board, it is automatic to carry out normal load test；It again will force by decelerating motor rotation
The force application board longitudinal direction face child's bicycle stabilizer of mechanism, it is automatic to carry out longitudinal load test；Using load servo motor and
Force snesor energy is reliable and stable, accurately realizes loading procedure, and the offset of stabilizer can be accurately measured using displacement sensor；
It only needs once to be loaded to test specimen, is automatically performed and stabilizer normal load and longitudinal load are tested, not only easy to operate,
Labor intensity is low, highly-safe, and substantially increases detection efficiency and measurement accuracy, effectively reduces various in detection process
Random error can sufficiently meet international standard ISO 8098:2014 " bicycle-child's bicycle safety requirements " and national standard
To the related request of child's bicycle stabilizer strength test in GB 14746-2006 " child's bicycle safety requirements ".
Further, before the test specimen fixed frame is including the first column, the first guide post, bicycle saddle pipe fixture, bicycle
Fixture is taken turns, first column is fixed on vertically on the Mobile base for being moved forward and backward mechanism, and first guide post and first is stood
Column is arranged in parallel, and the bicycle saddle pipe fixture is mounted on first column and the first guide post through the first reciprocating mechanism
On, the front wheel fixture is mounted on first column and the first guide post through the second reciprocating mechanism.
Using the above preferred scheme, by be moved forward and backward mechanism can in order to adjust test specimen with respect to force application mechanism front and back
Position can adjust bicycle saddle pipe fixture and bicycle by the first reciprocating mechanism and the second reciprocating mechanism respectively
The upper-lower height of front-wheel fixture carries out different model child's bicycle to stablize clamping to facilitate.
Further, the bicycle saddle pipe fixture includes saddle pipe fixing seat and briquetting, and the saddle pipe fixing seat is through connecting
Plate is installed on the Mobile base of the first reciprocating mechanism, and bicycle saddle pipe is held between the saddle pipe fixing seat and briquetting.
Further, the front wheel fixture quantity is two groups, is located at the two sides of child's bicycle, every group certainly
Driving front-wheel fixture all includes that support arm, screw rodb base and top wheel screw rod, the support arm are installed on second through connecting plate and move down
On the Mobile base of motivation structure, the screw rodb base is mounted on the support arm, and the top wheel screw rod is mounted on the screw rodb base,
The end of the top wheel screw rod of two groups of front wheel fixtures presses against the two sides of front wheel central axis respectively.
Using the above preferred scheme, can saddle pipe to child's bicycle and front-wheel central shaft carry out fast clamp, realize
Clamping speed and stability.
Further, the loading mechanism fixed frame includes the second column, cross bar and third reciprocating mechanism, and described the
Two columns are fixed on vertically on the pedestal, and the cross bar is liftably mounted on second column, and the cross bar also connects
It connects on the Mobile base of the third reciprocating mechanism.
Further, the loading mechanism quantity is two groups, and the vertical plate of every group of loading mechanism is all movably mounted at institute
It states on cross bar.
Using the above preferred scheme, it can be convenient and upper and lower position and left-right position adjusting carried out to loading mechanism.
Further, the 1/4 circular arc rail using the output axis center of the decelerating motor as the center of circle is additionally provided on the vertical plate
Road, the runing rest are equipped with the directive wheel slided along 1/4 arc orbit, are in 1/4 circular arc rail in the directive wheel
When road two-end-point position, the force application board can apply normal load and longitudinal load to child's bicycle stabilizer respectively.
Using the above preferred scheme, the stability and setting accuracy that force application mechanism turns to are improved, test efficiency is improved.
It further, further include controller, the controller includes main control module, the load servo motor, power sensing
Device and displacement sensor are connect with the main control module signal, and the main control module receives the pressure of the force snesor detection
It is dynamic to issue the control load servo motor for the force application board location data signal of data-signal and position sensor detection after processing
The command signal of work.
Further, after the pressure of the force snesor detection reaches a pressure set points, the load servo motor
Revolving speed be gradually reduced；After the pressure of the force snesor detection reaches pressure limit value, the load servo motor stops
Rotation.
Further, the controller further includes the load timing module for controlling load duration, the load timing
Module is connect with the main control module signal, and the main control module is sent out after being handled according to the pressure data signal of force snesor detection
Control load timing module starts the instruction of timing out, and duration data-signal is sent to the master control by the load timing module
Module issues the command signal of the control load servo motor movement after the main control module processing.
Using the above preferred scheme, automatic load is realized by controller using servo motor and force snesor.It is watching
It takes in motor loading procedure, force snesor adjusts the force value Real-time Feedback of load to controller, controller according to fed back values
Loading velocity and loading direction can be stablized, accurately realize loading procedure；It is wanted when the load applied on stabilizer reaches standard
When asking, controller starts to carry out high-precision timing by internal clocking module, and after reaching the load time, controller, which controls, to be added
It carries servo motor to be unloaded, accuracy of timekeeping is up to Millisecond；In measurement process, the high-precision being fixed on runing rest is utilized
Displacement sensor measures the offset and set deformation volume of stabilizer, substantially mentions compared to traditional measurement mode measurement accuracy
Height can reach 0.01mm, and can realize automatic measurement, save data.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of the present invention；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the structural schematic diagram of test specimen fixed frame in one embodiment of the present invention；
Fig. 5 is the structural schematic diagram of test specimen fixed frame in one embodiment of the present invention；
Fig. 6 is the structural schematic diagram of loading mechanism fixed frame in one embodiment of the present invention；
Fig. 7 is the structural schematic diagram of loading mechanism in one embodiment of the present invention；
Fig. 8 is the structural schematic diagram of loading mechanism in one embodiment of the present invention；
Fig. 9 is the left view of Fig. 8.
The title of number and corresponding component represented by letter in figure:
1- pedestal；2- is moved forward and backward mechanism；3- test specimen fixed frame；The first column of 31-；The first guide post of 32-；33- bicycle
Saddle pipe fixture；331- saddle pipe fixing seat；332- briquetting；The first reciprocating mechanism of 34-；35- front wheel fixture；351- branch
Brace；352- screw rodb base；The top 353- wheel screw rod；The second reciprocating mechanism of 36-；4- loading mechanism fixed frame；41- second is vertical
Column；42- cross bar；43- third reciprocating mechanism；5- loading mechanism；51- vertical plate；Arc orbit；52- slows down electric
Machine；53- runing rest；531- directive wheel；54- loads servo motor；55- loads force machine；56- force snesor；57- force
Plate；58- displacement sensor；6- child's bicycle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in figs 1-9, a kind of one embodiment of the present invention are as follows: child's bicycle stabilizer intensity detection test
Machine, comprising:
Pedestal 1；
It is moved forward and backward mechanism 2, is mounted on pedestal 1；
Test specimen fixed frame 3, is used to fix child's bicycle 6 to be detected, and bottom is fixed on the cunning for being moved forward and backward mechanism 2
On movable plate；
Loading mechanism fixed frame 4, bottom are fixedly mounted on pedestal 1；
Loading mechanism 5 comprising vertical plate 51, decelerating motor 52 and force application mechanism, vertical plate 51 are vertically installed at loading mechanism
On fixed frame 4, decelerating motor 52 is horizontally fixed on vertical plate 51, and the force application mechanism includes runing rest 53, load servo electricity
Machine 54, load force machine 55, force snesor 56, force application board 57 and displacement sensor 58, runing rest 53 are connected to decelerating motor
On 52 output shaft, load force machine 55 is mounted on runing rest 53, and load servo motor 54 is connected to load force machine 55
Input terminal, load force machine 55 casing in include transmission mechanism, load force machine 55 by input terminal load servo motor 54
Rotary motion the stretching motion of its telescopic shaft is converted into through transmission mechanism, force application board 57 is connected to load through force snesor 56 and applies
On the telescopic shaft of power machine 55, displacement sensor 58 is mounted between force application board 57 and runing rest 53；54 turns of servo motor of load
The telescopic shaft expanding-contracting action of dynamic drive load force machine 55, and then drive force application board 57 to apply child's bicycle stabilizer and press
Power；Decelerating motor 52 drives the force application mechanism to rotate, and can be applied by several times to child's bicycle stabilizer by force application mechanism and be hung down
Straight load and longitudinal load.
Beneficial effect by adopting the above technical scheme is: child's bicycle 6 to be measured is mounted on test specimen fixed frame 3, it will
The vertical face child's bicycle stabilizer of force application board 57 of force application mechanism, it is automatic to carry out normal load test；Pass through the electricity that slows down again
Machine 52 is rotated the longitudinal face child's bicycle stabilizer of the force application board 57 of force application mechanism, automatic progress longitudinal load test；Benefit
With load servo motor and force snesor can it is reliable and stable, accurately realize loading procedure, can accurately be surveyed using displacement sensor
Determine the offset of stabilizer；It only needs once to be loaded to test specimen, be automatically performed to stabilizer normal load and longitudinal load
Test, it is not only easy to operate, labor intensity is low, highly-safe, and detection efficiency and measurement accuracy are substantially increased, effectively subtract
Various random errors in few detection process, can sufficiently meet international standard ISO 8098:2014 " bicycle-child's bicycle
Safety requirements " and standard GB/T 14746-2006 " child's bicycle safety requirements " in child's bicycle stabilizer intensity
The related request of test.
As shown in Figure 4,5, in other embodiments of the invention, test specimen fixed frame 3 includes the first column 31, first
Guide post 32, bicycle saddle pipe fixture 33, front wheel fixture 35, the first column 31 is fixed on vertically is moved forward and backward mechanism 2
On Mobile base, the first guide post 32 is arranged in parallel with the first column 31, and bicycle saddle pipe fixture 33 is through the first reciprocating mechanism 34
It is mounted on the first column 31 and the first guide post 32, front wheel fixture 35 is mounted on first through the second reciprocating mechanism 36
On column 31 and the first guide post 32.Beneficial effect by adopting the above technical scheme is: can be in order to adjusting by being moved forward and backward mechanism
Test specimen is saved with respect to the front-rear position of force application mechanism, can be adjusted respectively by the first reciprocating mechanism and the second reciprocating mechanism
The upper-lower height for saving bicycle saddle pipe fixture and front wheel fixture, stablizes different model child's bicycle with facilitating
Clamping.
As shown in Fig. 2,4,5, in other embodiments of the invention, bicycle saddle pipe fixture 33 is fixed including saddle pipe
Seat 331 and briquetting 332, saddle pipe fixing seat 331 are installed on the Mobile base of the first reciprocating mechanism 34 through connecting plate, bicycle
Saddle pipe is held between saddle pipe fixing seat 331 and briquetting 332.35 quantity of front wheel fixture is two groups, is located at children
The two sides of bicycle, every group of front wheel fixture all include support arm 351, screw rodb base 352 and top wheel screw rod 353, support arm
351 are installed on the Mobile base of the second reciprocating mechanism 36 through connecting plate, and screw rodb base 352 is mounted on support arm 351, top wheel
Screw rod 353 is mounted on screw rodb base 352, and the end of the top wheel screw rod 353 of two groups of front wheel fixtures presses against voluntarily respectively
The two sides of vehicle front-wheel central shaft.Beneficial effect by adopting the above technical scheme is: can be in the saddle pipe and front-wheel of child's bicycle
Mandrel carries out fast clamp, realizes clamping speed and stability.
As shown in fig. 6, loading mechanism fixed frame 4 includes the second column 41, cross in other embodiments of the invention
Bar 42 and third reciprocating mechanism 43, the second column 41 are fixed on vertically on pedestal 1, and cross bar 42 is liftably mounted on second
On column 41, cross bar 42 is additionally attached on the Mobile base of third reciprocating mechanism 43.5 quantity of loading mechanism is two groups, every group
The vertical plate 51 of loading mechanism is all movably mounted on cross bar 42.Beneficial effect by adopting the above technical scheme is: Ke Yifang
Just upper and lower position is carried out to loading mechanism and left-right position is adjusted.
As shown in Figure 8,9, in other embodiments of the invention, the output with decelerating motor is additionally provided on vertical plate 51
Axis center is 1/4 arc orbit 511 in the center of circle, and runing rest 53 is equipped with the directive wheel 531 slided along 1/4 arc orbit 511,
When directive wheel 531 is in 1/4 arc orbit, 511 two-end-point position, force application board 57 can respectively be applied child's bicycle stabilizer
Add normal load and longitudinal load.Beneficial effect by adopting the above technical scheme is: improve force application mechanism turn to stability and
Setting accuracy improves test efficiency.
The form of mobile mechanism in the present invention is not construed as limiting, and is moved forward and backward mechanism, the first reciprocating mechanism, on second
Lower mobile mechanism, the second reciprocating mechanism can use lead screw pair shown in the drawings, can also use and pass in the prior art
Band or transmission chain is sent to realize the mechanism of translation.To further increase stationarity, mobile mechanism can also cooperate sliding rail, and power form can
Using motor driven or joystick manual adjustment.
It further include controller in other embodiments of the invention, the controller includes main control module, described to add
It carries servo motor, force snesor and displacement sensor to connect with the main control module signal, described in the main control module reception
The pressure data signal of force snesor detection and the force application board location data signal of position sensor detection issue control after processing
The command signal of the load servo motor movement.After the pressure of the force snesor detection reaches a pressure set points, institute
The revolving speed for stating load servo motor is gradually reduced；It is described to add after the pressure of the force snesor detection reaches pressure limit value
Servo motor is carried to stop operating.The controller further includes the load timing module for controlling load duration, the load meter
When module connect with the main control module signal, the main control module according to the pressure data signal of force snesor detection handle after
The instruction that control load timing module starts timing is issued, duration data-signal is sent to the master by the load timing module
Module is controlled, the command signal of the control load servo motor movement is issued after the main control module processing.Using above-mentioned technology
The beneficial effect of scheme is: realizing automatic load by controller using servo motor and force snesor.It is loaded in servo motor
In the process, force snesor is by the force value Real-time Feedback of load to controller, controller according to fed back values adjust loading velocity and
Loading direction can be stablized, accurately realize loading procedure；When the load applied on stabilizer reaches standard requirements, control
Device starts to carry out high-precision timing by internal clocking module, and after reaching the load time, controller controls load servo electricity
Machine is unloaded, and accuracy of timekeeping is up to Millisecond；In measurement process, sensed using the high precision displacement being fixed on runing rest
Device measures the offset and set deformation volume of stabilizer, greatly improves compared to traditional measurement mode measurement accuracy, reachable
To 0.01mm, and it can realize automatic measurement, save data.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow ordinary skill people
Member can understand the contents of the present invention and be implemented, it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of child's bicycle stabilizer intensity detection testing machine characterized by comprising
Pedestal；
It is moved forward and backward mechanism, is mounted on the base；
Test specimen fixed frame, is used to fix child's bicycle to be detected, and bottom is fixed on the sliding for being moved forward and backward mechanism
On plate；
Loading mechanism fixed frame, bottom are fixedly mounted on the base；
Loading mechanism comprising vertical plate, decelerating motor and force application mechanism, the vertical plate are vertically installed at the loading mechanism and fix
On frame, the decelerating motor is horizontally fixed on the vertical plate, the force application mechanism include runing rest, load servo motor,
Load force machine, force snesor, force application board and displacement sensor, the runing rest are connected to the output shaft of the decelerating motor
On, the load force machine is mounted on the runing rest, and the load servo motor is connected to the load force machine
Input terminal, the force application board are connected on the telescopic shaft of load force machine through the force snesor, the installation of institute's displacement sensors
Between the force application board and runing rest；The telescopic shaft of the load servo motor rotate driving load force machine is flexible dynamic
Make, and then force application board is driven to apply pressure to child's bicycle stabilizer；The decelerating motor drives the force application mechanism rotation,
Normal load and longitudinal load can be applied to child's bicycle stabilizer by several times by force application mechanism.
2. child's bicycle stabilizer intensity detection testing machine according to claim 1, which is characterized in that the test specimen is solid
Determining frame includes the first column, the first guide post, bicycle saddle pipe fixture, front wheel fixture, and first column is fixed vertically
On the Mobile base for being moved forward and backward mechanism, first guide post is arranged in parallel with the first column, the bicycle saddle pipe folder
Tool is mounted on first column and the first guide post through the first reciprocating mechanism, and the front wheel fixture is through on second
Lower mobile mechanism is mounted on first column and the first guide post.
3. child's bicycle stabilizer intensity detection testing machine according to claim 2, which is characterized in that the bicycle
Saddle pipe fixture includes saddle pipe fixing seat and briquetting, and the saddle pipe fixing seat is installed to the shifting of the first reciprocating mechanism through connecting plate
On dynamic seat, bicycle saddle pipe is held between the saddle pipe fixing seat and briquetting.
4. child's bicycle stabilizer intensity detection testing machine according to claim 3, which is characterized in that the bicycle
Front-wheel fixture quantity is two groups, is located at the two sides of child's bicycle, every group of front wheel fixture all includes support arm, silk
Pole socket and top wheel screw rod, the support arm are installed on the Mobile base of the second reciprocating mechanism through connecting plate, the screw rodb base
It is mounted on the support arm, the top wheel screw rod is mounted on the screw rodb base, and silk is taken turns on the top of two groups of front wheel fixtures
The end of bar presses against the two sides of front wheel central axis respectively.
5. child's bicycle stabilizer intensity detection testing machine according to claim 1, which is characterized in that the load machine
Structure fixed frame includes the second column, cross bar and third reciprocating mechanism, and second column is fixed on vertically on the pedestal,
The cross bar is liftably mounted on second column, and the cross bar is additionally attached to the shifting of the third reciprocating mechanism
On dynamic seat.
6. child's bicycle stabilizer intensity detection testing machine according to claim 5, which is characterized in that the load machine
Structure quantity is two groups, and the vertical plate of every group of loading mechanism is all movably mounted on the cross bar.
7. child's bicycle stabilizer intensity detection testing machine according to claim 1, which is characterized in that on the vertical plate
It is additionally provided with using the output axis center of the decelerating motor as 1/4 arc orbit in the center of circle, the runing rest is equipped with along described
The directive wheel of 1/4 arc orbit sliding, when the directive wheel is in 1/4 arc orbit two-end-point position, the force application board can
Normal load and longitudinal load are applied to child's bicycle stabilizer respectively.
8. child's bicycle stabilizer intensity detection testing machine according to claim 1, which is characterized in that further include control
Device, the controller include main control module, the load servo motor, force snesor and displacement sensor with the master control mould
Block signal connection, the main control module receive the pressure data signal of the force snesor detection and applying for position sensor detection
Power Board position data-signal issues the command signal of the control load servo motor movement after processing.
9. child's bicycle stabilizer intensity detection testing machine according to claim 8, which is characterized in that passed in the power
After the pressure of sensor detection reaches a pressure set points, the revolving speed of the load servo motor is gradually reduced；It is sensed in the power
After the pressure of device detection reaches pressure limit value, the load servo motor stops operating.
10. child's bicycle stabilizer intensity detection testing machine according to claim 9, which is characterized in that the control
Device further includes the load timing module for controlling load duration, and the load timing module and the main control module signal connect
It connects, the main control module issues control load timing module and starts to count after handling according to the pressure data signal of force snesor detection
When instruction, duration data-signal is sent to the main control module by the load timing module, after the main control module processing
Issue the command signal of the control load servo motor movement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910205584.9A CN109813603B (en) | 2019-03-18 | 2019-03-18 | Balance wheel strength detection testing machine for children bicycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205584.9A CN109813603B (en) | 2019-03-18 | 2019-03-18 | Balance wheel strength detection testing machine for children bicycle |
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| CN109813603A true CN109813603A (en) | 2019-05-28 |
| CN109813603B CN109813603B (en) | 2024-05-03 |
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| CN201910205584.9A Active CN109813603B (en) | 2019-03-18 | 2019-03-18 | Balance wheel strength detection testing machine for children bicycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871824A (en) * | 2020-06-23 | 2020-11-03 | 浙江中递智能科技有限公司 | Keep mail transition from top to bottom not balancing mechanism of straight line letter sorting equipment that drops |
| CN112729784A (en) * | 2020-12-15 | 2021-04-30 | 浙江华电器材检测研究所有限公司 | Mechanical property detection device |
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