CN208501483U - A kind of anti-block apparatus of overpass drainage pipeline - Google Patents
A kind of anti-block apparatus of overpass drainage pipeline Download PDFInfo
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- CN208501483U CN208501483U CN201820846109.0U CN201820846109U CN208501483U CN 208501483 U CN208501483 U CN 208501483U CN 201820846109 U CN201820846109 U CN 201820846109U CN 208501483 U CN208501483 U CN 208501483U
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- shaft
- connecting plate
- side wall
- block
- drainage pipeline
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Abstract
The utility model provides a kind of anti-block apparatus of overpass drainage pipeline.The anti-block apparatus of the overpass drainage pipeline includes connector sleeve；Water intake mechanism, the water intake mechanism include the influent hopper and strainer；Filter mechanism, the filter mechanism include the first connecting plate, handle, the second connecting plate, first rotating shaft, the second shaft, third shaft, hairbrush, third shaft and protrusion；First connecting plate is rotatablely connected the first rotating shaft and the third shaft；Second connecting plate is rotatablely connected second shaft and the 4th shaft；The side wall of the first rotating shaft and second shaft is equipped with the protrusion；The side wall of the third shaft and the 4th shaft is equipped with the hairbrush；Fixed mechanism；Fixing sleeve；Connecting tube；Mechanism is precipitated, the precipitating mechanism includes water inlet, block and collecting tank；Drainage mechanism.Rubbish in effective removal sewage provided by the utility model, avoids rubbish from entering drainage pipeline, prevents drain line blockage.
Description
Technical field
The utility model relates to overpass drainage pipeline equipment technical field more particularly to a kind of overpass drainage pipelines
Anti-block apparatus.
Background technique
Drainpipe Dow Jones index collects system composed by pipe duct and its affiliated facility with sewage effluent, waste water and rainwater.Packet
Include main pipe, branch pipe and the pipeline towards treatment plant, no matter be built on street or it is other Anywhere, as long as rise draining make
Pipeline all should be used as drainage pipeline statistics.
When the ponding on overpass is discharged using drainage pipeline, some rubbish, fiber and silt in sewage can be into
Enter the inside to drainage pipeline, the inside that most rubbish, fiber and silt enter drainage pipeline can be such that drainage pipeline sends out
Raw blocking, influence using.
Therefore, it is necessary to which the anti-block apparatus for providing a kind of new overpass drainage pipeline solves above-mentioned technical problem.
Utility model content
The technical issues of the utility model solves is to provide rubbish in the effective removal sewage of one kind, and rubbish is avoided to enter row
Waterpipe prevents the anti-block apparatus of the overpass drainage pipeline of drain line blockage.
In order to solve the above technical problems, the anti-block apparatus of overpass drainage pipeline provided by the utility model includes: connection
Set；Water intake mechanism, the water intake mechanism are fixed on the connector sleeve, and the water intake mechanism includes the influent hopper and strainer；
The influent hopper is threadedly coupled the connector sleeve, and the strainer is installed in the inside of the influent hopper；Filter mechanism, the mistake
Filter structure engages the connector sleeve, and the filter mechanism includes the first connecting plate, handle, the second connecting plate, first rotating shaft, second
Shaft, third shaft, hairbrush, third shaft and protrusion；The connector sleeve engages first connecting plate and second connection
Plate, first connecting plate connect the handle with the side wall of second connecting plate；The side wall of first connecting plate rotates
Connect the first rotating shaft and the third shaft；The side wall of second connecting plate is rotatablely connected second shaft and described
4th shaft；The side wall of the first rotating shaft and second shaft is equipped with the protrusion being equally spaced；The third shaft
The hairbrush being equally spaced is equipped with the side wall of the 4th shaft；Fixed mechanism, the fixed mechanism connect described first
Fishplate bar and second connecting plate are fixed；Fixing sleeve；The fixing sleeve engages first connecting plate and second connecting plate;
Connecting tube, the connecting tube are connected to the fixing sleeve；Precipitate mechanism；The precipitating mechanism is fixed on the connecting tube, described heavy
Shallow lake mechanism includes water inlet, block and collecting tank, and the water inlet is connected to the fixing sleeve, and the inside of the connecting tube is equipped with etc.
The block away from distribution, and the collecting tank is arranged in the connecting tube inner bottom；Drainage mechanism, the drainage mechanism connection
The collecting tank top.
Preferably, the water inlet, block and the collecting tank are set gradually from top to bottom in the inside of the connecting tube,
And pollution discharge mechanism is arranged in one end of the collecting tank.
Preferably, the pollution discharge mechanism includes drainpipe and valve, and the drainpipe, institute are installed in the bottom end of the collecting tank
The side wall for stating drainpipe is equipped with the valve.
Preferably, the fixed mechanism include groove, the first spring, fixed plate, supporting block, connecting rod, second spring and
Limited block, first connecting plate and the both ends side wall of second connecting plate are located to be equipped with the groove being connected between two parties, described
The groove of the side wall of second connecting plate connects the fixed plate, the side walls of the fixed plate by first spring
Connect the supporting block, the supporting block connects the limited block by the connecting rod, described in the limited block top installation
Second spring, and the limited block engages first link block.
Preferably, the side wall of the fixed plate is arcuate structure, and the fixed plate is slidably connected with the groove.
Preferably, the top of first connecting plate and second connecting plate and bottom end install two described first respectively
Shaft and second shaft, and the third shaft and the 4th shaft are located at two first rotating shafts and described second
Between shaft.
Preferably, it is described protrusion be helical structure, and the first rotating shaft side wall it is described protrusion with described second turn
Second protrusion of axis side wall is interspersed, and the length of the first rotating shaft is greater than the length of second shaft.
Preferably, the length of the third shaft is greater than the length of the 4th shaft, and the third shaft side wall
The hairbrush of the hairbrush and the 4th shaft side wall is interspersed.
Preferably, the drainage mechanism packet report discharge outlet and partition, the side wall of the collecting tank installs the partition, described
The height of partition is greater than the height of the collecting tank, and the discharge outlet is arranged in the top of the partition.
Compared with the relevant technologies, the anti-block apparatus of overpass drainage pipeline provided by the utility model has following beneficial
Effect:
The utility model provides a kind of anti-block apparatus of overpass drainage pipeline, the loading hopper of the utility model
The strainer is installed in inside, prevents the biggish rubbish of some volumes on overpass from entering the inside of the loading hopper, described
Loading hopper is connected to first connecting plate and second connecting plate, the inside of first connecting plate by the connector sleeve
It is rotatablely connected multiple first rotating shafts and the third shaft, the inner rotation connection of second connecting plate multiple described the
The side wall of two shafts and the 4th shaft, the first rotating shaft and second shaft is equipped with the spiral helicine protrusion, institute
The side wall for stating third shaft and the 4th shaft is equipped with the hairbrush being interspersed, sewage enter first connecting plate and
The inside of second connecting plate makes the protrusion and hairbrush rotation that some fibre filiform in sewage is wrapped in institute
It states on protrusion and the hairbrush, prevents the filiform in sewage from entering in drainpipe, first connecting plate and described second connects
Fishplate bar bottom end is connected to the water inlet, and the lower section of the water inlet is arranged the block and the collecting tank, sewage from it is described into
The mouth of a river enters the inside of the collecting tank, the block and waste water, reduces the flow velocity of water, arrives the sediment deposition in sewage
The bottom of the collecting tank, sewage are discharged from the top of the collecting tank again, prevent silt from entering the inside of drainpipe, the present apparatus
Three processes are divided to remove the impurity in sewage, the inside for preventing rubbish from entering drainpipe causes to block.
Detailed description of the invention
Fig. 1 is that a kind of structure of preferred embodiment of the anti-block apparatus of overpass drainage pipeline provided by the utility model is shown
It is intended to；
Fig. 2 is filter mechanism schematic diagram of internal structure shown in FIG. 1；
Fig. 3 is connecting tube internal structure sectional view shown in FIG. 1；
Fig. 4 is fixed plate structure sectional view shown in FIG. 1.
Figure label: 1, pollution discharge mechanism, 11, drainpipe, 12, valve, 2, connecting tube, 3, fixing sleeve, 4, filter mechanism,
41, the first connecting plate, 42, handle, the 43, second connecting plate, 44, first rotating shaft, the 45, second shaft, 46, third shaft, 47, hair
Brush, the 48, the 4th shaft, 49, protrusion, 5, water intake mechanism, 51, influent hopper, 52, strainer, 6, connector sleeve, 7, fixed mechanism, 71,
Groove, the 72, first spring, 73, fixed plate, 74, supporting block, 75, connecting rod, 76, second spring, 77, limited block, 8, precipitation machine
Structure, 81, water inlet, 82, block, 83, collecting tank, 9, drainage mechanism, 91, discharge outlet, 92, partition.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, Fig. 1 is the anti-blocking of overpass drainage pipeline provided by the utility model
A kind of structural schematic diagram of preferred embodiment of device；Fig. 2 is filter mechanism schematic diagram of internal structure shown in FIG. 1；Fig. 3 is figure
Connecting tube internal structure sectional view shown in 1；Fig. 4 is fixed plate structure sectional view shown in FIG. 1.Overpass drainage pipeline is prevented
Block apparatus includes: connector sleeve 6；Water intake mechanism 5, the water intake mechanism 5 are fixed on the connector sleeve 6, and the water intake mechanism 5 includes
The influent hopper 51 and strainer 52；The influent hopper 51 is threadedly coupled the connector sleeve 6, the inside of the influent hopper 51
The strainer 52 is installed；Filter mechanism 4, the filter mechanism 4 engage the connector sleeve 6, and the filter mechanism 4 includes the first company
Fishplate bar 41, handle 42, the second connecting plate 43, first rotating shaft 44, the second shaft 45, third shaft 46, hairbrush 47, third shaft 48
With protrusion 49；The connector sleeve 6 engages first connecting plate 41 and second connecting plate 43,41 He of the first connecting plate
The side wall of second connecting plate 43 connects the handle 42；Described first turn of the side wall rotation connection of first connecting plate 41
Axis 44 and the third shaft 46；The side wall of second connecting plate 43 is rotatablely connected second shaft 45 and 4th turn described
Axis 48；The side wall of the first rotating shaft 44 and second shaft 45 is equipped with described raised 49 to be equally spaced；The third turns
Axis 46 and the side wall of the 4th shaft 48 are equipped with the hairbrush 47 being equally spaced；Fixed mechanism 7, the fixed mechanism 7 will
First connecting plate 41 and second connecting plate 43 are fixed；Fixing sleeve 3；The fixing sleeve 3 engages first connecting plate
41 and second connecting plate 43;Connecting tube 2, the connecting tube are connected to the fixing sleeve 3；Precipitate mechanism 8；The precipitating mechanism
8 are fixed on the connecting tube 2, and the precipitating mechanism 8 includes water inlet 81, block 82 and collecting tank 83, and the water inlet 81 connects
Lead to the fixing sleeve 3, the inside of the connecting tube 2 is equipped with the block 82 being equally spaced, and 2 inner bottom of the connecting tube
The collecting tank 83 is set；Drainage mechanism 9, the drainage mechanism 9 are connected to 83 top of collecting tank.
Silt in sewage is stayed in the bottom end of the collecting tank 83, the water inlet 81, block 82 and institute for convenience
It states collecting tank 83 to set gradually from top to bottom in the inside of the connecting tube 2, and blowdown machine is arranged in one end of the collecting tank 83
Structure 1.
In order to facilitate the silt cleared up inside the collecting tank 83, the pollution discharge mechanism 1 includes drainpipe 11 and valve 12,
The drainpipe 11 is installed in the bottom end of the collecting tank 83, and the side wall of the drainpipe 11 is equipped with the valve 12.
The fixation of first connecting plate 41 and second connecting plate 43 for convenience, the fixed mechanism 7 include recessed
Slot 71, the first spring 72, fixed plate 73, supporting block 74, connecting rod 75, second spring 76 and limited block 77, first connection
Plate 41 is located to be equipped with the groove 71 being connected to the both ends side wall of second connecting plate 43 between two parties, second connecting plate 43
The groove 71 of side wall connects the fixed plate 73, the side walls connection of the fixed plate 73 by first spring 72
The supporting block 74, the supporting block 74 connect the limited block 77,77 top of the limited block peace by the connecting rod 75
The second spring 76 is filled, and the limited block 77 engages first link block 41.
The sliding of the fixed plate 73 for convenience, the side wall of the fixed plate 73 are arcuate structure, and the fixed plate
73 are slidably connected with the groove 71.
It described raised 49 comes into full contact with, the filiform in sewage is stayed in described with sewage with the hairbrush 47 for convenience
In protrusion 49 and the hairbrush 47, prevent the impurity in sewage from passing through from the gap between described raised 49 and the hairbrush 47,
Two first rotating shafts 44 and institute are installed in the top of first connecting plate 41 and second connecting plate 43 and bottom end respectively
The second shaft 45 is stated, and the third shaft 48 and the 4th shaft 48 are located at two first rotating shafts 44 and described second
Between shaft 45.Described raised 49 be helical structure, and described raised the 49 and described second of 44 side wall of the first rotating shaft
Second protrusion 49 of 45 side wall of shaft is interspersed, and the length of the first rotating shaft 44 is greater than second shaft 45
Length.The length of the third shaft 46 is greater than the length of the 4th shaft 48, and 46 side wall of third shaft is described
Hairbrush 47 and the hairbrush 47 of 48 side wall of the 4th shaft are interspersed.
The silt of 83 bottom end of collecting tank is discharged from the discharge outlet 91 in order to prevent, the packet of drainage mechanism 9 report
Discharge outlet 91 and partition 92, the side wall of the collecting tank 83 install the partition 92, and the height of the partition 92 is greater than the receipts
Collect the height of slot 83, and the discharge outlet 91 is arranged in the top of the partition 92.
The working principle of the anti-block apparatus of overpass drainage pipeline provided by the utility model is as follows: semicircular by two
First connecting plate 41 and second connecting plate 43 are bolted together, and make groove described in the side wall of first connecting plate 41
71 are connected to groove 71 described in the side wall of second connecting plate 43, engage the first rotating shaft 44 and the third shaft 46
Second connecting plate 43 makes second shaft 45 and the 4th shaft 48 engage first connecting plate 41, slides institute
Fixed plate 73 is stated, slides the fixed plate 73 to one end of first connecting plate 41, elongates first spring 72, when solid
When the groove 71 that fixed board 73 slides into 41 side wall of the first connecting plate is located between two parties, the elongation of second spring 76 makes described
Limited block 77 engages with first connecting plate 41, and first connecting plate 41 and second connecting plate 43 are connected to one
It rises, engages with bottom end the connector sleeve 6 and described respectively on the top of first connecting plate 41 and second connecting plate 43
Fixing sleeve 3；It is threadedly coupled the influent hopper 51 on 6 top of connector sleeve, in the 3 bottom end card of fixing sleeve and the connection
Pipe 2 closes the valve 12, and the connecting tube 2 is put into the top with drainpipe, the influent hopper 51 is made to be located at overpass
On road surface；Sewage enters the inside of the present apparatus by influent hopper 52, and the strainer 51 is installed in the inside of the loading hopper 52,
The biggish rubbish of volume is stayed on the road surface of overpass, the loading hopper 51 is connected to described first by the connector sleeve 6
Connecting plate 41 and second connecting plate 43, first connecting plate 41 and the inner rotation of second connecting plate 43 connect more
A first rotating shaft 44, second shaft 45, the third shaft 46 and the 4th shaft 48, the first rotating shaft 44
Side wall with described raised 49 and second shaft 45 side wall described in protrusion 49 be interspersed, 46 side wall of third shaft
The hairbrush 47 and the hairbrush 47 of 48 side wall of the 4th shaft be interspersed, sewage enters first connecting plate 41
With the inside of second connecting plate 43, make described raised 49 and the rotation of the hairbrush 47 by some fibre filiform in sewage
Be wrapped on described raised 49 and the hairbrush 47, prevent the filiform in sewage from entering in drainpipe, sewage enter it is described into
The block 82 and the collecting tank 83, the block 82 and waste water is arranged in the lower section at the mouth of a river 81, the water inlet 81, makes
To the bottom end of the collecting tank 83, described 83 one end of collecting tank is arranged the partition 92 for sediment deposition in sewage, sewage again from
The discharge outlet 91 on 92 top of partition is discharged, and prevents silt from entering the inside of drainpipe；After the time of one end, it incite somebody to action this
Device takes out from drainpipe top, opens contracting box valve 12, clears up the silt of 83 bottom end of collecting tank, described first is connected
Fishplate bar 41 and second connecting plate 43 and the connector sleeve 6 and the fixing sleeve 3 separate, and pull the supporting block 74, compress
The second spring 76 separates the limited block 77 with first connecting plate 41, and first spring 72 is shunk, will be described
Fixed plate 73 is drawn in second connecting plate 43, opens first connecting plate 41 and the second connecting plate 43, is cleared up described convex
Rubbish in 49 and the hairbrush 47 is played, the influent hopper 51 is being opened, is clearing up the strainer 52, then the present apparatus is again assembled
Combination can be reused.
Compared with the relevant technologies, the anti-block apparatus of overpass drainage pipeline provided by the utility model has following beneficial
Effect:
The utility model provides a kind of anti-block apparatus of overpass drainage pipeline, the loading hopper of the utility model
The strainer 52 is installed in 51 inside, prevents the biggish rubbish of some volumes on overpass from entering the interior of the loading hopper 51
Portion, the loading hopper 51 are connected to first connecting plate 41 and second connecting plate 43 by the connector sleeve 6, and described the
The inner rotation of one connecting plate 41 connects multiple first rotating shafts 44 and the third shaft 46, second connecting plate 43
Inner rotation connects multiple second shafts 45 and the 4th shaft 48, the first rotating shaft 44 and second shaft 45
Side wall be equipped with spiral helicine described raised 49, the side wall of the third shaft 46 and the 4th shaft 48, which is equipped with, to be interspersed
The hairbrush 47, sewage enter first connecting plate 42 and second connecting plate 43 inside, make raised 49 He
Some fibre filiform in sewage is wrapped on described raised 49 and the hairbrush 47 by the rotation of hairbrush 47, prevents sewage
In filiform enter in drainpipe, first connecting plate 41 is connected to the water inlet with 43 bottom end of the second connecting plate
81, the block 82 and the collecting tank 83 is arranged in the lower section of the water inlet 81, and sewage is from described in the water inlet 81 entrance
The inside of collecting tank 83, the block 82 and waste water, reduce the flow velocity of water, make sediment deposition in sewage to the collection
The bottom of slot 83, sewage are discharged from the top of the collecting tank 83 again, prevent silt from entering the inside of drainpipe, the present apparatus point three
A process removes the impurity in sewage, and the inside for preventing rubbish from entering drainpipe causes to block.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of anti-block apparatus of overpass drainage pipeline characterized by comprising
Connector sleeve；
Water intake mechanism, the water intake mechanism are fixed on the connector sleeve, and the water intake mechanism includes influent hopper and strainer；It is described
Influent hopper is threadedly coupled the connector sleeve, and the strainer is installed in the inside of the influent hopper；
Filter mechanism, the filter mechanism engage the connector sleeve, and the filter mechanism includes the first connecting plate, handle, second
Connecting plate, first rotating shaft, the second shaft, third shaft, hairbrush, the 4th shaft and protrusion；The connector sleeve engaging described first
Connecting plate and second connecting plate, first connecting plate connect the handle with the side wall of second connecting plate；It is described
The side wall of first connecting plate is rotatablely connected the first rotating shaft and the third shaft；The side wall of second connecting plate, which rotates, to be connected
Connect second shaft and the 4th shaft；The side wall of the first rotating shaft and second shaft is equipped with the institute being equally spaced
State protrusion；The side wall of the third shaft and the 4th shaft is equipped with the hairbrush being equally spaced；
Fixed mechanism, the fixed mechanism fix first connecting plate and second connecting plate；
Fixing sleeve；The fixing sleeve engages first connecting plate and second connecting plate;
Connecting tube, the connecting tube are connected to the fixing sleeve；
Precipitate mechanism；The precipitating mechanism is fixed on the connecting tube, and the precipitating mechanism includes water inlet, block and collection
Slot, the water inlet are connected to the fixing sleeve, and the inside of the connecting tube is equipped with the block being equally spaced, and the connection
The collecting tank is arranged in pipe inner bottom；
Drainage mechanism, the drainage mechanism are connected to the collecting tank top.
2. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that the water inlet, block
It is set gradually from top to bottom with the collecting tank in the inside of the connecting tube, and blowdown machine is arranged in one end of the collecting tank
Structure.
3. the anti-block apparatus of overpass drainage pipeline according to claim 2, which is characterized in that the pollution discharge mechanism includes
The drainpipe is installed in drainpipe and valve, the bottom end of the collecting tank, and the side wall of the drainpipe is equipped with the valve.
4. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that the fixed mechanism includes
Groove, the first spring, fixed plate, supporting block, connecting rod, second spring and limited block, first connecting plate and described second
The both ends side wall of connecting plate locates the groove equipped with connection between two parties, and the groove of the side wall of second connecting plate passes through institute
It states the first spring and connects the fixed plate, the side walls of the fixed plate connect the supporting block, and the supporting block passes through institute
It states connecting rod and connects the limited block, the second spring is installed on the limited block top, and limited block engaging described the
One connecting plate.
5. the anti-block apparatus of overpass drainage pipeline according to claim 4, which is characterized in that the side wall of the fixed plate
For arcuate structure, and the fixed plate is slidably connected with the groove.
6. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that first connecting plate and
Two first rotating shafts and second shaft are installed in the top and bottom end of second connecting plate respectively, and the third turns
Axis and the 4th shaft are between two first rotating shafts and second shaft.
7. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that the protrusion is spiral shape
Structure, and the protrusion of the first rotating shaft side wall and the protrusion of the second shaft side wall are interspersed, and described
The length of first rotating shaft is greater than the length of second shaft.
8. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that the length of the third shaft
Degree is greater than the length of the 4th shaft, and the hairbrush of the third shaft side wall and the 4th shaft side wall is described
Hairbrush is interspersed.
9. the anti-block apparatus of overpass drainage pipeline according to claim 1, which is characterized in that the drainage mechanism packet report
Discharge outlet and partition, the side wall of the collecting tank install the partition, and the height of the partition is greater than the height of the collecting tank,
And the discharge outlet is arranged in the top of the partition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820846109.0U CN208501483U (en) | 2018-06-01 | 2018-06-01 | A kind of anti-block apparatus of overpass drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820846109.0U CN208501483U (en) | 2018-06-01 | 2018-06-01 | A kind of anti-block apparatus of overpass drainage pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208501483U true CN208501483U (en) | 2019-02-15 |
Family
ID=65287370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820846109.0U Active CN208501483U (en) | 2018-06-01 | 2018-06-01 | A kind of anti-block apparatus of overpass drainage pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208501483U (en) |
-
2018
- 2018-06-01 CN CN201820846109.0U patent/CN208501483U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Huayong Inventor after: Zhu Xiaofeng Inventor after: Liu Shibao Inventor after: Tang Shaoming Inventor after: Zhu Xuefeng Inventor after: Guo Zhuqing Inventor after: Lv Lei Inventor after: Hua Guocai Inventor after: Shi Xueqing Inventor before: Xiao Huayong Inventor before: Zhu Xiaofeng Inventor before: Liu Shibao Inventor before: Tang Shaoming Inventor before: Zhu Xuefeng Inventor before: Guo Zhuqing Inventor before: Lv Lei Inventor before: Hua Guocai Inventor before: Shi Xueqing |