CN206177593U - Percussion device - Google Patents
Percussion device Download PDFInfo
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- CN206177593U CN206177593U CN201621129589.6U CN201621129589U CN206177593U CN 206177593 U CN206177593 U CN 206177593U CN 201621129589 U CN201621129589 U CN 201621129589U CN 206177593 U CN206177593 U CN 206177593U
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- fork
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- speed
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Abstract
The utility model discloses a percussion device, its including: a pendulum rod, a striking subassembly, smooth the locating of striking subassembly detachably the bottom of pendulum rod, a locking Assembly, locking Assembly detachably connect in the pendulum rod, just locking Assembly is used for injecing the striking subassembly is followed the pendulum rod slides downwards, the piece that tests the speed, the piece that tests the speed connect in the striking subassembly, just the piece that tests the speed is used for measuring the speed of striking subassembly. The utility model discloses a percussion device can slide adjustment striking position, be convenient for adjustment and control through the striking subassembly. Can measure the stroke speed of striking subassembly when impacting through the piece that tests the speed, can measure the weight of striking subassembly simultaneously, just impact the test through the striking subassembly of adjusting different weight, can collect air bag's the some information of exploding for the information of collecting is more accurate, reliable, the required precision of data when just guaranteeing the test, thus it prepares to obtain air bag's reasonable parameter.
Description
Technical field
This utility model is related to a kind of percussion device.
Background technology
With widely using for automobile industry air bag, air bag mistake effect there are currently no national standard,《Automobile is pacified
Full gas-bag system misses Experiment on Function method and requirement》Solicit original text and announced as the suggestion of mandatory standard regulation.
The mistake problems in role of air bag seems particularly significant in air bag development process, and rational parameter setting can allow
Air bag plays a part of to protect personal safety very well.Otherwise leak source is quick-fried, put late it is quick-fried, overdue it is quick-fried all can be to in-car driver and crew
Greatly injury is caused, very serious consequence is brought.The bump test for not setting up a conformance with standard regulation at present sets
It is standby so that now in the urgent need to setting up a standard compliant impact test equipment such that it is able to draw rational parameter, guarantee is driven
Car personal security.
Utility model content
The technical problems to be solved in the utility model is to overcome hitting without conformance with standard regulation of the prior art
Hit the defects such as testing equipment, there is provided a kind of percussion device.
This utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of percussion device, its feature is that it is included：
One fork；
One clashes into component, and the shock component is detachably and slidably arranged on the bottom of the fork；
One latch assembly, the latch assembly is removably attachable to the fork, and the latch assembly is used to limit
The shock component is along the downward sliding of the fork；
One tests the speed piece, and the piece that tests the speed is connected to the shock component, and described tests the speed piece for measuring the shock group
The speed of part.
In this programme, impingement position can be adjusted with sliding by clashing into component, be conveniently adjusted and control.
Meanwhile, the weight for clashing into component can be measured, and shock component is detachable, by the shock of Different Weight
Component carries out impact test, and such that it is able to collect the quick-fried information of point of air bag, the Reasonable Parameters for obtaining air bag are prepared.
In addition, the stroke speed for clashing into component when clashing into can be measured by the piece that tests the speed, it is ensured that the essence of data during test
Degree is required so that the information collected is more accurate, reliable.
It is preferred that the percussion device includes two bearing blocks, a rotary shaft, the top of the fork passes through and connects
In the rotary shaft, the bearing block passes through the rotary shaft, and two bearing blocks respectively positioned at the two ends of the fork.
In this programme, using said structure form, cause fork connection more steady reliable by two bearing blocks,
Clash into and will not produce skew inconsistent phenomenon when swinging, it is ensured that the Stability and veracity of shock.
It is preferred that be provided with a connection piece at the top of the fork, one end bolt connection of the connector in the fork,
The other end of the connector passes through and is welded in the rotary shaft.
In this programme, using said structure form so that fork can be loaded and unloaded, it is convenient to keep in repair and changes.Together
Shi Jiaqiang forks and the bonding strength of rotary shaft, prevent fork from coming off in use.
It is preferred that the percussion device includes a spatula, the spatula is connected to the bottom of the fork, and institute
State and be provided with the middle part of spatula a lockhole；
And/or, the side of the fork is provided with scale.
In this programme, more reliable can exactly position and connect by lockhole.
In addition, can more accurately adjust shock component to clash into target by scale, it is ensured that the accuracy of test data.
It is preferred that being provided with two the first guide rails before the fork, before two first guide rails guide rail is provided with
Groove；
The latch assembly includes sliding nut, slide bolt, and the sliding nut is arranged in the guide-track groove, described
Slide bolt is connected to the sliding nut；
The shock component includes simulation ball, fixed plate, and the simulation ball is connected to before the fixed plate, described
The slide bolt that passes behind of fixed plate is connected to the sliding nut.
In this programme, it is convenient to clash into component sliding by latch assembly and positioning is fixed, meanwhile, simple structure, easily
In control.
In addition, carrying out impact test, the quick-fried information of point of receipt air bag, the shock of conformance with standard regulation by simulating ball
Test requirements document.
It is preferred that being provided with least one balancing weight, two the second guide rails, two second guide rails behind the fork
It is connected to behind the fork, the balancing weight is slidedly arranged on second guide rail, and the balancing weight is removably secured company
It is connected to the fork.
In this programme, using said structure form, the center of gravity of fork is adjusted by balancing weight sliding and fixation, made
Obtain fork more steady reliable when shock is swung, skew inconsistent phenomenon will not be produced, it is ensured that the Stability and veracity of shock.
It is preferred that the shock component includes a simulation shopping cart, several fastening bolts, several clam members,
One end of several fastening bolts is connected to behind the simulation shopping cart, and the fastening of each two horizontal distribution
The other end between bolt is connected with the clam member, the fastening bolt, the clam member and the simulation shopping cart
Between formed one first space, the fork pass through first space.
In this programme, by simulating shopping cart impact test, the quick-fried information of point of receipt air bag, conformance with standard are carried out
The bump test of regulation is required.
It is cost-effective in addition, being convenient to simulate shopping cart handling, it is easy to maintenance and replacing, and simple structure.
It is preferred that the shock component also includes several baffle plates, the fastening spiral shell per two neighboring vertical distribution
The baffle plate is connected between bolt.
In this programme, using the bonding strength between said structure form, plus strong impact component, it is ensured that clash into component
Structural stability, prevents shock component from coming off in use.
It is preferred that the simulation shopping cart includes several simulated blocks, the two ends of several simulated blocks pass through
Bolt is fixedly connected, and at the top of the simulation shopping cart suspension ring are provided with.
In this programme, plus the structure bonding strength of strong impact component, while simple structure, it is easy to maintenance and replacing.
In addition, by suspension ring can active force in simulation shopping cart, it is easy to simulate shopping cart adjustment and control.
It is preferred that the latch assembly include block on, block, once block, a cushion block, a locking handle in one
Handss, the upper block, the middle block and the lower block are distributed up and down successively and are bolted to connection, the upper gear
A second space is formed between block, the middle block and the lower block, the fork passes through the second space, the cushion block
It is embedded between the upper block and the lower block, and the cushion block is located between the middle block and the fork, it is described
Lock handle is threadedly connected to the middle block, and the lock handle is through the middle block and is resisted against the cushion block.
In this programme, using said structure form, can to pre-determined bit when play quick locking and do use.Convenient simulation purchase
Thing car is fixed.
On the basis of common sense in the field is met, above-mentioned each optimum condition, can combination in any, obtain final product this utility model respectively compared with
Good example.
Positive effect of the present utility model is：
Percussion device of the present utility model, impingement position can be adjusted by clashing into component with sliding, be conveniently adjusted and controlled
System.The stroke speed for clashing into component when clashing into can be measured by the piece that tests the speed, while the weight for clashing into component can be measured,
And impact test is carried out by adjusting the shock component of Different Weight, the quick-fried information of point of air bag can be collected so that collect
The information for arriving is more accurate, reliable, and ensures the required precision of data during test, so as to the Reasonable Parameters for obtaining air bag are matched somebody with somebody
System.
Description of the drawings
Fig. 1 is the main structure diagram of the percussion device of this utility model embodiment 1.
Fig. 2 is the corresponding right side structural representations of Fig. 1.
Fig. 3 is cross section structure diagrams of the Fig. 1 along A-A directions.
Fig. 4 is the main structure diagram of the percussion device of this utility model embodiment 2.
Fig. 5 is the corresponding right side structural representations of Fig. 4.
Fig. 6 is the corresponding backsight structural representations of Fig. 4.
Fig. 7 is the structural representation of the shock component of the percussion device of this utility model embodiment 2.
Fig. 8 is the structural representation of the latch assembly of the percussion device of this utility model embodiment 2.
Description of reference numerals：
Fork 1, the first guide rail 11, scale 12, balancing weight 13, the second guide rail 14, connector 15
Component 2 is clashed into, ball 21 is simulated, fixed plate 22 simulates shopping cart 23, simulated block 231
Suspension ring 232, fastening bolt 24, clam member 25, baffle plate 26
Latch assembly 3, slide bolt 31, sliding nut 32, upper block 33, middle block 34
Lower block 35, lock handle 36, cushion block 37
Test the speed piece 4
Rotary shaft 5
Bearing block 6
Spatula 7, lockhole 71
Specific embodiment
Below by embodiment mode and combine accompanying drawing becoming apparent from intactly illustrating this utility model, but not therefore
This utility model is limited among described scope of embodiments.
Embodiment 1
As depicted in figs. 1 and 2, percussion device of the present utility model, it includes fork 1, clashes into component 2, latch assembly
3rd, test the speed piece 4, clashes into the bottom that component 2 is detachably and slidably arranged on fork 1, and clashing into component 2 can adjust shock position by sliding
Put, so as to being convenient to adjust and controlling.Meanwhile, the weight for clashing into component 2 can be measured, it is also possible to carry out to clashing into component 2
Handling are changed, and by the shock component 2 of Different Weight impact test is carried out, such that it is able to collect the quick-fried information of point of air bag,
The Reasonable Parameters for obtaining air bag are prepared.
It is downward along fork 1 for limiting shock component 2 that latch assembly 3 is removably attachable to fork 1, and latch assembly 3
Sliding.So that clashing into component 2 will not produce skew and inconsistent phenomenon when being clashed into, it is ensured that strike precalculated position, it is ensured that
The accuracy of impact test.
The piece 4 that tests the speed be connected to shock component 2, and test the speed piece 4 for measurement shock component 2 speed.Enter component 2 is clashed into
Row can be measured by test the speed piece 4 and its other measuring instruments when clashing into the speed for clashing into component 2, such that it is able to accurately
Collect the quick-fried information of point of air bag so that the information collected is more accurate, reliable, and ensure the precision of data during test
Require, so as to the Reasonable Parameters for obtaining air bag are prepared.Preferably, the piece 4 that tests the speed can be bolted to clash into component 2
Behind so that the piece 4 that tests the speed will not be touched in knockout process, and the piece 4 that tests the speed can be with disassembling, assembling and replacing.
In order to meet《Automobile air-bag system misses Experiment on Function method and requirement》Suggestion solicit the requirement of original text, clash into
Component 2 includes simulation ball 21, fixed plate 22, and simulation ball 21 is connected to before fixed plate 22, it is preferable that simulates ball 21 and consolidates
Fixed board 22 can be bolted so that simulation ball 21 can be changed, meanwhile, carry out impact test by simulating ball 21
And the quick-fried information of point of air bag is collected, meet the requirement that suggestion solicits original text.
As shown in Figure 1, Figure 2 and Figure 3, in order to reach the sliding and fixed effect that are convenient to clash into component 2, due to simulation
The lighter in weight of ball 21, can be provided with two the first guide rails 11 before fork 1, can be provided with before two the first guide rails 11 and lead
Track slot (not shown), latch assembly 3 can include sliding nut 32, slide bolt 31, and sliding nut 32 is arranged at guide rail
The inside of groove, and sliding nut 32 can enter line slip in guide-track groove, slide bolt 31 is connected to sliding nut 32, and fixed
The slide bolt 31 that passes behind of plate 22 is connected to sliding nut 32.When unscrewing between slide bolt 31 and sliding nut 32,
Clash into component 2 to clash into component 2 and be unable to sliding with sliding in fork 1, when tightening between slide bolt 31 and sliding nut 32
So as to be fixed on fork 1.It is convenient to clash into the sliding of component 2 by latch assembly 3 and positioning is fixed, it is ensured that will not produces during shock
Raw skew and inconsistent phenomenon.Meanwhile, simple structure, it is easy to control.Preferably, the quantity of sliding nut 32 and slide bolt 31 is all
For four, it is connected on four angles of fixed plate 22.
Lighter in weight due to simulating ball 21, in order to reach the effect that percussion device precisely clashes into, can be with behind fork 1
At least one balancing weight, 13, two the second guide rails 14 are provided with, two the second guide rails 14 are connected to behind fork 1, balancing weight 13
The second guide rail 14 is slidedly arranged on, and balancing weight 13 is removably secured and is connected to fork 1.Preferably, can adopt and be same as clashing into
Component 2 and the connected mode of fork 1, cause balancing weight 13 to enter relative to fork 1 by slide bolt 31 and sliding nut 32
Line slip and fixation.The center of gravity of percussion device is adjusted by the sliding and fixation of balancing weight 13 so that fork 1 is in pendulum
It is more steady reliable during dynamic shock, skew inconsistent phenomenon will not be produced, it is ensured that the Stability and veracity of shock.
In order to reach the effect that component 2 and balancing weight 13 are clashed in accurately adjustment, the side of fork 1 can be provided with scale
12, can more accurately adjust shock component 2 to clash into target by scale 12, it is ensured that the accuracy of test data.Simultaneously
Can ensure that the more steady reliable of percussion device.Clashing into component 2 and balancing weight 13 can be connected with pointer, can by pointer
To be convenient to viewing positioning.
Can stably and reliably clash into reach percussion device, percussion device can include two bearing blocks 6, rotation
Axle 5, the top of fork 1 passes through and is connected to rotary shaft 5, and bearing block 6 passes through rotary shaft 5, and two bearing blocks 6 are located at respectively pendulum
The two ends of bar 1.Be used to fix percussion device by two bearing blocks 6, rotary shaft 5 relative to bearing block 6 can with rotary oscillation, from
And the swing with driven fork 1 is clashed into.Fork 1 is arranged on the centre of two bearing blocks 6 and enables to fork 1 in knockout process more
Plus it is steady reliable, skew inconsistent phenomenon will not be produced when clashing into and swinging, it is ensured that the Stability and veracity of shock.
The top of fork 1 is also provided with connector 15, and one end bolt connection of connector 15 is in fork 1, connector 15
The other end pass through and be welded in rotary shaft 5.Fork 1 is loaded and unloaded, is convenient to keep in repair and is changed.Simultaneously by weldering
The bonding strength of connection reinforcement fork 1 and rotary shaft 5 is connect, prevents fork 1 from coming off in use.
Percussion device can be provided with spatula 7, and spatula 7 is connected to the bottom of fork 1, and the middle part of spatula 7 is provided with
Lockhole 71, by detachably connected between lockhole 71 and other equipment, when predetermined swing is reached, the company of release and lockhole 71
Connect so that clashing into component 2 can test shock.More reliable positioned exactly by reaching between lockhole 71 and other equipment
With the effect of connection.Percussion device is also provided with angular transducer (not shown), and angular transducer is connected to fork 1,
And angular transducer is used for detecting the angle that fork 1 is swung, it is ensured that accuracy of detection is required so that the information collected is more accurate
Really, it is reliable.
Embodiment 2
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, the same section of the structure of the percussion device of the present embodiment and embodiment 1 is not
Repeat again, only difference is explained.Clashing into component 2 can carry out impact test, the weight in embodiment 1 by Different Weight
Amount is relatively light, in the percussion device of the present embodiment, clashes into component 2 and includes simulation shopping cart 23, several fastening bolts 24, some
Individual clam member 25, one end of several fastening bolts 24 is connected to behind simulation shopping cart 23, and each two horizontal distribution
Fastening bolt 24 between the other end be connected with clam member 25, fastening bolt 24, clam member 25 and simulation shopping cart 23
Between form the first space, fork 1 passes through first space.By the other end of nut screwing clamping fastening bolt 24, will can hit
Hit component 2 to be fixedly connected on fork 1, when nut and fastening bolt 24 is unscrewed so that clashing into component 2 can be on fork 1
Enter line slip.It is cost-effective so that simulation shopping cart 23 can be loaded and unloaded, it is easy to maintenance and replacing, and simple structure.Meanwhile, pass through
Simulation shopping cart 23 carries out impact test, and the quick-fried information of point of receipt air bag meets the bump test requirement that suggestion solicits original text.
It is heavier due to clashing into component 2, in order to prevent shock component 2 from coming off in use.Clashing into component 2 can also include
Several baffle plates 26, between the fastening bolt 24 per two neighboring vertical distribution baffle plate 26 is connected with.Plus tie in strong impact component 2
Bonding strength between structure is required, it is ensured that clash into the structural stability of component 2, prevents shock component 2 from coming off in use.
Simulation shopping cart 23 can include several simulated blocks 231, and the two ends of several simulated blocks 231 pass through
Bolt is fixedly connected, and strengthens the structure bonding strength of simulation shopping cart 23, while simple structure, it is easy to maintenance and replacing.Simulation
The top of shopping cart 23 is provided with suspension ring 232, can facilitate active force in simulation shopping cart 23 by suspension ring 232, it is easy to simulation purchase
Thing car 23 is adjusted and controlled.
It is heavier due to clashing into component 2, in order to prevent shock component 2 from producing sliding phenomenon in use.Such as Fig. 5 and Tu
Shown in 8, latch assembly 3 includes block 33, middle block 34, lower block 35, cushion block 37, lock handle 36, upper block 33, in
Block 34 and lower block 35 are distributed up and down successively and are bolted to connection, upper block 33, middle block 34 and lower block 35 it
Between form second space, fork 1 passes through the second space, and cushion block 37 is embedded between block 33 and lower block 35, and cushion block
37 are located between middle block 34 and fork 1, and lock handle 36 is threadedly connected to middle block 34, and lock handle 36 passes through middle block 34
And it is resisted against cushion block 37.Cushion block 37 can be stood tightly against when lock handle 36 is screwed into middle link stopper 34 so that cushion block 37 and fork 1
Compress against so that latch assembly 3 is tightly secured in fork 1, preventing from clashing into component 2 producing downslide.By upper block 33
Scale 12 can be conveniently watched, quickly find precalculated position and locking positioning accurately.
In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear", " vertical ", " water
It is flat ", " top ", " bottom ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship,
It is for only for ease of description this utility model and simplifies description, rather than indicates or imply that the device or element of indication must have
Specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within protection domain of the present utility model.
Claims (10)
1. a kind of percussion device, it is characterised in that it is included：
One fork；
One clashes into component, and the shock component is detachably and slidably arranged on the bottom of the fork；
One latch assembly, it is described for limiting that the latch assembly is removably attachable to the fork, and the latch assembly
Component is clashed into along the downward sliding of the fork；
One tests the speed piece, and the piece that tests the speed is connected to the shock component, and described tests the speed piece for measuring the shock component
Speed.
2. percussion device as claimed in claim 1, it is characterised in that the percussion device includes two bearing blocks, a rotation
Rotating shaft, the top of the fork passes through and is connected to the rotary shaft, and the bearing block passes through the rotary shaft, and described in two
Bearing block is respectively positioned at the two ends of the fork.
3. percussion device as claimed in claim 2, it is characterised in that a connection piece, the company are provided with the top of the fork
One end bolt connection of fitting passes through and is welded in the rotary shaft in the fork, the other end of the connector.
4. percussion device as claimed in claim 1, it is characterised in that the percussion device includes a spatula, the pressure
Hyoplastron is connected in the middle part of the bottom of the fork, and the spatula and is provided with a lockhole；
And/or, the side of the fork is provided with scale.
5. the percussion device as any one of claim 1-4, it is characterised in that two are provided with before the fork
One guide rail, before two first guide rails guide-track groove is provided with；
The latch assembly includes sliding nut, slide bolt, and the sliding nut is arranged in the guide-track groove, the slip
Bolt connection is in the sliding nut；
The shock component includes simulation ball, fixed plate, and the simulation ball, the fixation are connected to before the fixed plate
The slide bolt that passes behind of plate is connected to the sliding nut.
6. percussion device as claimed in claim 5, it is characterised in that be provided with behind the fork at least one balancing weight,
Two the second guide rails, two second guide rails are connected to behind the fork, and the balancing weight is slidedly arranged on described second and leads
Rail, and the balancing weight is removably secured and is connected to the fork.
7. the percussion device as any one of claim 1-4, it is characterised in that the shock component includes a simulation
Shopping cart, several fastening bolts, several clam members, one end of several fastening bolts is connected to the simulation purchase
Behind thing car, and the other end between the fastening bolt of each two horizontal distribution is connected with the clam member, described
One first space is formed between fastening bolt, the clam member and the simulation shopping cart, the fork passes through described first
Space.
8. percussion device as claimed in claim 7, it is characterised in that the shock component also includes several baffle plates, often
The baffle plate is connected between the fastening bolt of two neighboring vertical distribution.
9. percussion device as claimed in claim 7, it is characterised in that the simulation shopping cart includes several simulated blocks,
The two ends of several simulated blocks are bolted to connection, and at the top of the simulation shopping cart suspension ring are provided with.
10. percussion device as claimed in claim 7, it is characterised in that the latch assembly includes block on, keeps off in
Block, once block, a cushion block, a lock handle, the upper block, the middle block and the lower block successively up and down distribution and
It is bolted to connection, a second space, the fork is formed between the upper block, the middle block and the lower block
Through the second space, the cushion block is embedded between the upper block and the lower block, and the cushion block is positioned at described
Between middle block and the fork, the lock handle is threadedly connected to the middle block, and the lock handle is through in described
Block and it is resisted against the cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621129589.6U CN206177593U (en) | 2016-10-17 | 2016-10-17 | Percussion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621129589.6U CN206177593U (en) | 2016-10-17 | 2016-10-17 | Percussion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177593U true CN206177593U (en) | 2017-05-17 |
Family
ID=58677811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621129589.6U Active CN206177593U (en) | 2016-10-17 | 2016-10-17 | Percussion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144411A (en) * | 2017-06-26 | 2017-09-08 | 歌尔股份有限公司 | Percussion device |
| CN107337034A (en) * | 2017-08-08 | 2017-11-10 | 江南嘉捷电梯股份有限公司 | A kind of device for being used to control shopping cart induction system inlet flow rate |
| CN107341986A (en) * | 2017-08-22 | 2017-11-10 | 国网冀北电力有限公司电力科学研究院 | Carbon fiber composite core wire lesion mimic device and method |
-
2016
- 2016-10-17 CN CN201621129589.6U patent/CN206177593U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144411A (en) * | 2017-06-26 | 2017-09-08 | 歌尔股份有限公司 | Percussion device |
| CN107337034A (en) * | 2017-08-08 | 2017-11-10 | 江南嘉捷电梯股份有限公司 | A kind of device for being used to control shopping cart induction system inlet flow rate |
| CN107337034B (en) * | 2017-08-08 | 2023-10-20 | 苏州江南嘉捷电梯有限公司 | Device for controlling inlet flow of shopping cart conveying system |
| CN107341986A (en) * | 2017-08-22 | 2017-11-10 | 国网冀北电力有限公司电力科学研究院 | Carbon fiber composite core wire lesion mimic device and method |
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