CN110624783B - Water pipe butt joint is with connecting inboard daub ware - Google Patents
Water pipe butt joint is with connecting inboard daub ware Download PDFInfo
- Publication number
- CN110624783B CN110624783B CN201910970215.9A CN201910970215A CN110624783B CN 110624783 B CN110624783 B CN 110624783B CN 201910970215 A CN201910970215 A CN 201910970215A CN 110624783 B CN110624783 B CN 110624783B
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- glue
- joint
- push
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/0052—Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
The invention relates to a glue applicator, in particular to a glue applicator on the inner side of a joint for butting of water pipes. The invention relates to a glue smearing device for the inner side of a joint for butting water pipes, which aims to design a glue smearing device with high glue smearing efficiency and capable of smearing glue uniformly. A glue spreader for the inner side of a joint for butting a water pipe comprises a through cylinder body, a screw rod, a push plate, a spiral sleeve, a piston, a push rod and the like; the left side of the top of the hollow cylinder body is provided with a sealing cover, the inner rotary type of the hollow cylinder body is provided with a screw rod, the inner sliding type of the hollow cylinder body is provided with a piston, the right end of the piston is evenly connected with at least two push rods at intervals, and the push rods are in sliding fit with the hollow cylinder body. According to the invention, the hollow cylinder body is used for storing glue, the push rod is matched with the piston to push the glue into the conveying pipe, and then the conveying pipe coats the glue on the inner wall of the butt joint of the water pipe.
Description
Technical Field
The invention relates to a glue applicator, in particular to a glue applicator on the inner side of a joint for butting of water pipes.
Background
Along with the continuous development of the modern society, the improvement of people's standard of living, the water pipe is as the pipeline of modernized water supply, the interior decoration water pipe of modern family or mill interior decoration all adopt the wall-buried formula construction, the water pipe of modern common application is mostly metal pipe, mould compound metal pipe and plastic tubing, for reasons such as avoid water pipe seepage, most families can scribble glue at the joint inner wall of water pipe butt joint, scribble glue at the inner wall of water pipe joint and can increase the leakproofness and the bonding strength of water pipe.
At present, the mode of paining glue at water pipe butt joint inner wall generally is paintd glue at water pipe butt joint inner wall by artifical application brush, and the manual work needs reciprocal application brush and glue contact to be stained with when paining and glues, paints again, and the process is consuming time too for a long time, and work efficiency is lower to when the manual work is paintd the inhomogeneous of paining glue easily, can influence the butt joint effect of water pipe.
Therefore, it is necessary to develop an inner side glue spreader for a joint for water pipe butt joint, which is efficient in glue spreading and can uniformly spread glue.
Disclosure of Invention
In order to overcome the defects that the manual glue smearing needs to be performed repeatedly, the time consumption is too long, the working efficiency is low, and the butt joint effect of the water pipe is affected due to the fact that glue is easily smeared unevenly when the glue is smeared manually, the technical problems of the invention are as follows: the inner side glue spreader for the water pipe butt joint connector is high in glue spreading efficiency and capable of spreading glue evenly.
The technical scheme is as follows: a glue applicator on the inner side of a joint for butting water pipes comprises a through cylinder body and a screw rod, wherein a sealing cover is arranged on the left side of the top of the through cylinder body, the screw rod is rotatably arranged in the through cylinder body, a push plate, a screw sleeve, a piston, push rods, matching sleeves, a rotary disc, an annular sealing plate, a conveying pipe, a glue outlet pipe and a one-way valve are further included, the piston is arranged in the through cylinder body in an inward sliding manner, the right end of the piston is uniformly connected with at least two push rods at intervals, the push rods are in sliding fit with the through cylinder body, the push plate is connected between the right ends of the push rods, the screw sleeve is arranged in the middle of the left end of the push plate and sleeved on the outer side of the screw rod, the screw sleeve is in threaded fit with the screw rod, the matching sleeve is arranged at the left end of the outer side of the through cylinder, the annular sealing plate is evenly connected with at least two conveying pipes in the circumferential direction, the right end of each conveying pipe penetrates into the middle through cylinder body, the outer side of the rotary disc is evenly connected with a rubber outlet pipe in the circumferential direction, the rubber outlet pipe is communicated with the annular trough, and a check valve is arranged on the rubber outlet pipe.
Optionally, the wire winding device further comprises a transmission device, the transmission device comprises a shell, a winding drum, a volute spiral spring, a gear, a winding disc, a rack and a pull wire, the shell is arranged at the bottom of the hollow cylinder body, the winding drum is rotatably arranged in the shell, the volute spiral spring is connected between the winding drum and the shell, the gear is rotatably connected to the right side of the top of the shell, the upper portion of the gear penetrates out of the outer side of the shell, the winding disc is connected to the gear, the pull wire is wound on the winding disc, the tail end of the pull wire is connected with the winding drum, the rack is embedded in the.
Optionally, still including stop gear, stop gear is connected with the connecting block including connecting block, kelly, reset spring and latch on the outer right wall top of well expert's jar, and the slidingtype kelly that is equipped with on the connecting block is connected with reset spring between connecting block and the kelly, and reset spring overlaps in the kelly outside, and the even interval in push rod top of top is equipped with the latch, latch and kelly cooperation.
Optionally, the cleaning device further comprises a disc brush, the left end face of the rotating disc is connected with the disc brush, and bristles are arranged on the outer surface of the disc brush in the circumferential direction.
The invention has the beneficial effects that: the glue smearing device stores glue by using the hollow cylinder body, pushes the glue into the conveying pipe by matching the push rod with the piston, and smears the glue on the inner wall of the butt joint of the water pipe by the conveying pipe.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a first enlarged partial view of a front view of the present invention.
Fig. 3 is a right side view of a portion of the structure of the present invention.
Fig. 4 is a second enlarged partial view of the front view of the present invention.
Fig. 5 is a third partial enlarged view of the front view of the present invention.
In the above drawings: the device comprises a hollow cylinder body 1, a spiral rod 2, a spiral sleeve 3, a push plate 4, a piston 5, a push rod 6, a matching sleeve 7, a rotating disc 8, an annular trough 81, an annular sealing plate 82, a delivery pipe 9, a rubber outlet pipe 10, a check valve 11, a transmission device 12, a casing 121, a winding drum 122, a volute spring 123, a gear 124, a winding disc 125, a rack 126, a stay wire 127, a limiting mechanism 13, a connecting block 131, a clamping rod 132, a reset spring 133, a clamping tooth 134 and a disc brush 14.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example one
As shown in fig. 1-3, a joint inner side glue applicator for water pipe butt joint comprises a hollow cylinder body 1 and a spiral rod 2, wherein a sealing cover is arranged on the left side of the top of the hollow cylinder body 1 and is connected with the hollow cylinder body 1 in a threaded connection mode, the spiral rod 2 is rotatably arranged in the hollow cylinder body 1, the joint inner side glue applicator further comprises a push plate 4, a spiral sleeve 3, a piston 5, push rods 6, a matching sleeve 7, a turntable 8, an annular sealing plate 82, a conveying pipe 9, a glue outlet pipe 10 and a one-way valve 11, the piston 5 is slidably arranged in the hollow cylinder body 1 and is in an annular shape, the right end of the piston 5 is uniformly connected with four push rods 6 at intervals, the push rods 6 are in sliding fit with the hollow cylinder body 1, the push plate 4 is connected between the right ends of the four push rods 6, the push plate 4 is circular, the middle part of the left end of the, 3 covers in the hob 2 outsides of spiral sleeve pipe, spiral sleeve pipe 3 and 2 screw-thread fit of hob, the 1 outside left end of well logical cylinder body is equipped with cooperation cover 7, the diameter that cooperation cover 7 slightly is less than water pipe head's diameter, 2 left ends of hob are connected with carousel 8, open on 8 right sides of carousel has annular silo 81, annular silo 81 is equipped with annular closing plate 82 with the slidingtype, annular closing plate 82 is used for sealing annular silo 81, annular closing plate 82 circumference evenly is connected with four conveyer pipes 9, the conveyer pipe 9 right-hand member penetrates in logical cylinder body 1, the outside circumference evenly is connected with out rubber tube 10 of carousel 8, go out rubber tube 10 and annular silo 81 intercommunication, be equipped with check valve 11 on going out rubber tube 10.
When glue is required to be smeared on the inner wall of the water pipe joint, the sealing cover of the hollow cylinder body 1 is opened, the glue is poured into the hollow cylinder body 1, and then the sealing cover is tightly covered. Then the glue smearing device is fixed on the inner side of a water pipe joint needing to be smeared by a matching sleeve 7, a rotary disc 8 is positioned on the inner wall of the water pipe joint, then a push plate 4 is pushed to move towards a central cylinder body 1, the push plate 4 moves towards the central cylinder body 1 and drives a screw rod 2 to rotate by a spiral sleeve 3, the push plate 4 moves towards the central cylinder body 1 and also pushes a piston 5 to move in the central cylinder body 1 by a push rod 6, the piston 5 moves in the central cylinder body 1 to convey glue in the central cylinder body 1 into an annular trough 81 by a conveying pipe 9, the glue in the central cylinder body 1 is continuously extruded to extrude the glue in the annular trough 81 to the inner wall of the water pipe by a glue outlet pipe 10, at the moment, the screw rod 2 rotates to drive the rotary disc 8 to rotate, the rotary disc 8 rotates to be matched with the glue outlet pipe 10 to uniformly smear the glue on the inner wall of the water pipe, the check valve 11 can prevent external air from entering and glue from hardening in the glue outlet pipe 10. When the piston 5 needs to reset rightwards, the sealing cover at the top of the hollow cylinder body 1 is opened, and the push plate 4 can be pulled to reset rightwards.
Example two
As shown in fig. 1 and 4, the transmission device 12 further includes a transmission device 12, the transmission device 12 includes a housing 121, a bobbin 122, a spiral spring 123, a gear 124, a bobbin 125, a rack 126 and a pull wire 127, the bottom of the hollow cylinder 1 is provided with the housing 121, the housing 121 is connected with the hollow cylinder 1 through a bolt connection manner, the bobbin 122 is rotatably provided in the housing 121, the spiral spring 123 is connected between the bobbin 122 and the housing 121, the gear 124 is rotatably connected to the right side of the top of the housing 121, the upper portion of the gear 124 penetrates through the outer side of the housing 121, the bobbin 125 is connected to the gear 124, the pull wire 127 is wound on the bobbin 125, the tail end of the pull wire 127 is connected to the bobbin 122, the bottom of the lower push rod 6 is provided with the rack 126 in an embedded manner, the rack 126 is located above the gear.
At first, the pull wire 127 is wound on the wire spool 125, the scroll spring 123 is in a contraction state, the push plate 4 is loosened, the wire spool 122 is driven to retract the pull wire 127 under the action of the scroll spring 123, the wire spool 125 is driven to release the pull wire 127 through the pull wire 127, the gear 124 rotates reversely to drive the rack 126 and the push rod 6 to move leftwards to extrude glue, the glue can be extruded without manually pushing the push plate 4 to move, the extrusion force is uniform, and the uniformity of gluing on the inner wall of the water pipe joint can be ensured. After the glue in the hollow cylinder body 1 is completely extruded, the push plate 4 is pulled to move rightwards, the gear 124 is driven to rotate clockwise through the rack 126, the wire spool 125 rotates clockwise along with the gear to wind the stay wire 127, the stay wire 127 is discharged from the wire spool 122, and the volute spiral spring 123 contracts again, so that the inner wall of the water pipe joint is convenient to glue next time.
EXAMPLE III
As shown in fig. 1 and 5, still including stop gear 13, stop gear 13 is including connecting block 131, kelly 132, reset spring 133 and latch 134, well logical cylinder body 1 outer right wall top is connected with connecting block 131, the gliding style is equipped with kelly 132 on connecting block 131, the vertical setting of kelly 132, kelly 132 bottom and top push rod 6 contact, be connected with reset spring 133 between connecting block 131 and the kelly 132, reset spring 133 cover is in the kelly 132 outside, the even interval in push rod 6 top of top is equipped with latch 134, latch 134 and the cooperation of kelly 132.
At first kelly 132 card is in leftmost latch 134 left side, when needing to carry out the rubber coating to the water pipe head inner wall, pulling kelly 132 rebound, reset spring 133 compresses, thereby leftmost latch 134 no longer receives the restriction of kelly 132, drive push rod 6 through transmission 12 and remove left, and extrude the glue in well logical cylinder body 1 through piston 5, then loosen kelly 132, kelly 132 can block next latch 134, so just can restrict the volume of gluing through cylinder body 1 in every turn, avoid piston 5 to lead to glue excessively to extrude in well through cylinder body 1 to the left removal, cause the waste. The phenomenon that the adhesive force is influenced due to too little extrusion of the glue can be avoided.
As shown in fig. 2 and 3, the toothbrush further comprises a disc brush 14, the disc brush 14 is connected to the left end face of the rotating disc 8, the diameter of the disc brush 14 is slightly smaller than that of the matching sleeve 7, and bristles are arranged on the outer surface of the disc brush 14 in the circumferential direction.
After glue is smeared, when taking out this dauber from water pipe head, carousel 8 outwards removes and drives disc brush 14 outwards to brush the glue of water pipe head inner wall level through the brush hair of 14 outer walls of disc brush, make glue scribble more evenly.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (4)
1. A joint inner side glue smearing device for butt joint of water pipes comprises a through cylinder body and a screw rod, wherein a sealing cover is arranged on the left side of the top of the through cylinder body, the screw rod is rotatably arranged in the through cylinder body, and the glue smearing device is characterized by further comprising a push plate, screw sleeves, a piston, push rods, matching sleeves, a rotary disc, an annular sealing plate, a conveying pipe, a glue outlet pipe and a one-way valve, wherein the piston is arranged in the through cylinder body in a sliding manner, the right end of the piston is uniformly connected with at least two push rods at intervals, the push rods are in sliding fit with the through cylinder body, the push plate is connected between the right ends of the push rods, the screw sleeve is arranged in the middle of the left end of the push plate and sleeved on the outer side of the screw rod, the screw sleeve is in threaded fit with the screw rod, the matching sleeve is arranged at the left end of the outer side of, annular silo sliding type ground is equipped with annular seal plate, and annular seal plate is used for sealing annular silo, and annular seal plate circumference evenly is connected with two piece at least conveyer pipes, and the conveyer pipe right-hand member penetrates in the well logical cylinder body, and the outside circumference evenly is connected with the rubber outlet pipe of carousel, and rubber outlet pipe and annular silo intercommunication are equipped with the check valve on the rubber outlet pipe.
2. The inner side daubing device for the joint for the butt joint of the water pipe as claimed in claim 1, which is characterized by further comprising a transmission device, wherein the transmission device comprises a shell, a winding drum, a volute spring, a gear, a winding disc, a rack and a pull wire, the bottom of a hollow cylinder body is provided with the shell, the winding drum is rotatably arranged in the shell, the volute spring is connected between the winding drum and the shell, the gear is rotatably connected to the right side of the top of the shell, the upper part of the gear penetrates out of the shell, the winding disc is connected to the gear, the pull wire is wound on the winding disc, the tail end of the pull wire is connected with the winding drum, the rack is embedded in the bottom.
3. The joint inner side glue spreader for the butt joint of the water pipes as claimed in claim 2, further comprising a limiting mechanism, wherein the limiting mechanism comprises a connecting block, a clamping rod, a return spring and a latch, the connecting block is connected to the top of the right wall of the outer side of the hollow cylinder body, the clamping rod is slidably arranged on the connecting block, the return spring is connected between the connecting block and the clamping rod, the return spring is sleeved on the outer side of the clamping rod, the latch is arranged at the top of the upper push rod at regular intervals, and the latch is matched with the clamping rod.
4. The inner side dauber for the joint for butting the water pipes as claimed in claim 3, which is characterized by further comprising a disc brush, wherein the disc brush is connected to the left end face of the rotary disc, and bristles are arranged on the outer surface of the disc brush in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970215.9A CN110624783B (en) | 2019-10-12 | 2019-10-12 | Water pipe butt joint is with connecting inboard daub ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970215.9A CN110624783B (en) | 2019-10-12 | 2019-10-12 | Water pipe butt joint is with connecting inboard daub ware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110624783A CN110624783A (en) | 2019-12-31 |
| CN110624783B true CN110624783B (en) | 2021-04-02 |
Family
ID=68974888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910970215.9A Expired - Fee Related CN110624783B (en) | 2019-10-12 | 2019-10-12 | Water pipe butt joint is with connecting inboard daub ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110624783B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083626A (en) * | 2020-01-08 | 2021-07-09 | 深超光电（深圳）有限公司 | Gluing device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3005008A1 (en) * | 1980-02-11 | 1981-09-10 | ESPE Fabrik pharmazeutischer Präparate GmbH, 8031 Seefeld | MULTIPLE TUBE |
| US20040173640A1 (en) * | 2003-03-07 | 2004-09-09 | Larry Brandon | Method and apparatus for tinting caulk |
| CN2754733Y (en) * | 2004-06-07 | 2006-02-01 | 河北科技大学 | Sand coating centrifugal sprayer in pipe internal wall |
| CN202715530U (en) * | 2012-07-13 | 2013-02-06 | 陈宪东 | Oil pipe sealing grease spray gun |
| CN204412577U (en) * | 2015-01-30 | 2015-06-24 | 上虞市龙冠照明电器有限公司 | A kind of glue injection machine for the LED circuit board that bonds |
| CN206168648U (en) * | 2016-11-15 | 2017-05-17 | 武汉科技大学 | Pipe inner wall evenly spray device |
| CN206951504U (en) * | 2017-06-22 | 2018-02-02 | 刘海明 | A kind of oiling care device for large-diameter pipeline madial wall |
| CN107617531A (en) * | 2017-10-10 | 2018-01-23 | 曾凡友 | A kind of manipulator lubricating oil smears equipment |
| US10744543B2 (en) * | 2017-11-16 | 2020-08-18 | Saudi Arabian Oil Company | Apparatus and method for in-situ cathodic protection of piggable water pipelines |
| CN108906519A (en) * | 2018-07-02 | 2018-11-30 | 镇江玄润电气设备有限公司 | A kind of glass cement assist device for decoration |
| CN209124281U (en) * | 2018-10-10 | 2019-07-19 | 中交一航局第四工程有限公司 | A kind of inner wall of the pipe anti-corrosion painting device |
-
2019
- 2019-10-12 CN CN201910970215.9A patent/CN110624783B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN110624783A (en) | 2019-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110624783B (en) | Water pipe butt joint is with connecting inboard daub ware | |
| CN104989078B (en) | Orientation feed paint for wall rotary broom | |
| CN106175059A (en) | Paint brush | |
| CN110495702A (en) | A kind of automatic feeding type brush device | |
| CN110397249B (en) | Integral type wall whitewashes equipment | |
| CN209144627U (en) | A kind of uniform application device of high-dirt-resistance road mark coating | |
| CN104858112B (en) | Orientation feed top coat rotary broom | |
| CN208430746U (en) | A kind of roller type paint brush | |
| CN113967564B (en) | Polyester plastic coating device | |
| CN208318624U (en) | A kind of easy-to-mount push type cleaning brush | |
| CN211100571U (en) | A pipeline cleaning device for building plumbing | |
| CN213855251U (en) | Paper core helps a roll rubberizing shower nozzle | |
| CN104839990A (en) | Novel convenient and fast toothbrush | |
| CN214458870U (en) | Dye conveying device for dyeing | |
| CN207177220U (en) | Self-priming coating roller | |
| CN219024191U (en) | Feeding device for production of ground anti-skid paint | |
| CN208815866U (en) | A kind of interior decoration gluing device | |
| CN203328190U (en) | Novel cosmetic brush | |
| CN106881234B (en) | Decorative board waxing device | |
| CN208502184U (en) | A kind of building decoration decoration device of whitewashing a wall | |
| CN204685434U (en) | A kind of directed feed paint for wall rotary broom | |
| CN220058685U (en) | Construction engineering whitewashes device | |
| CN216334258U (en) | Nano modified slurry temporary storage transfer kettle | |
| CN219923578U (en) | Concrete slurry screening device | |
| CN207821362U (en) | A kind of plug-type multifunctional toothbrush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 503, building 19, 128 Jiangyuan street, Tianhe District, Guangzhou, Guangdong 510630 Applicant after: Lu Yanping Address before: 201100 304b, building 6, 555 Dongchuan Road, Minhang District, Shanghai Applicant before: Lu Yanping |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chu Zaoqin Inventor after: Lu Yanping Inventor before: Lu Yanping |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210402 Termination date: 20211012 |