CN109356809A - A kind of construction concrete pump for preventing concrete from flowing back - Google Patents
A kind of construction concrete pump for preventing concrete from flowing back Download PDFInfo
- Publication number
- CN109356809A CN109356809A CN201811412114.1A CN201811412114A CN109356809A CN 109356809 A CN109356809 A CN 109356809A CN 201811412114 A CN201811412114 A CN 201811412114A CN 109356809 A CN109356809 A CN 109356809A
- Authority
- CN
- China
- Prior art keywords
- wall
- concrete
- discharge nozzle
- concrete pump
- connecting rod
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims 1
- 230000013011 mating Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of construction concrete pumps for preventing concrete from flowing back, including concrete pump ontology, hopper and discharge nozzle, the right end of concrete pump ontology is arranged in hopper, the discharge outlet of hopper is fixedly connected with discharge nozzle, the inner wall of discharge nozzle is provided with annular slot, the right end of annular slot is provided with flexible rubber pad, and anti-return plate is set between annular slot, anti-return plate is connected by a hinge on the inner wall of annular slot, the plate face of anti-return plate is provided with connecting hole, the rounded column structure of connecting hole, connecting hole is arranged through the outer wall of anti-return plate, it combines together in the back-flow preventer that the inside of concrete pump ontology is arranged with discharge nozzle, save the fund in addition buying other back-flow preventers and time, and ash scraper ring is set on the sleeving connecting rod inside discharge nozzle, ash scraper ring benefit The concrete on telescopic rod is removed with blade, convenient for the mating connection of sleeving connecting rod and telescopic rod.
Description
Technical field
The present invention relates to technical field of concrete pumps, specially a kind of construction is mixed with preventing concrete from flowing back
Solidifying soil delivery pump.
Background technique
Concrete pump also known as concrete pump are a kind of machinery that concrete is continuously conveyed along pipeline using pressure,
It is made of the pump housing and delivery pipe, is mainly used in that room is built, bridge and constructing tunnel, concrete pump are divided into slide valve concrete
Delivery pump and S valve concrete pump equip scalable or flexion cloth in addition, there are also a kind of pump housings on automobile chassis
Expect that bar forms pump truck, although concrete pump by its various advantages be widely applied to room build, bridge and constructing tunnel
In, but it there are still following drawbacks in actual use:
1, concrete pump hoists delivering concrete mostly, when concrete conveyance pump pressure is smaller or mechanical disorder,
Inevitably the concrete inside concrete delivery pipe is caused to flow back, when regurgitant volume is larger, causes hopper to be saturated and overflow, cause ground
A large amount of concrete are stained on face and concrete pump fuselage, bring inconvenience to construction site；
2, traditional concrete pump can be arranged non-return valve on concrete conveying pipe, but the work of non-return valve installing and dismounting compared with
To be cumbersome, and non-return valve belongs to the corollary equipment of separate type, in disorder construction site, when looking for non-return valve and also more wasting
Between.
Summary of the invention
The purpose of the present invention is to provide a kind of construction concrete pumps for preventing concrete from flowing back, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: including concrete pump ontology, hopper and going out
The right end of concrete pump ontology is arranged in expects pipe, the hopper, and the discharge outlet of hopper is fixedly connected with discharge nozzle, described
The inner wall of discharge nozzle is provided with annular slot, and the both ends of the annular slot are provided with flexible rubber pad, and between annular slot
Anti-return plate is set, and the anti-return plate is connected by a hinge on the inner wall of annular slot, and the plate face of anti-return plate is provided with
Connecting hole, the rounded column structure of connecting hole, connecting hole is arranged through the outer wall of anti-return plate, and the inside of connecting hole is set
It is equipped with adjusting rod, the left end of the adjusting rod is provided with clamping groove, and the clamping groove is matched with the clamping block of blocking cap right end, and
Adjusting rod includes sleeving connecting rod and telescopic rod, and the sleeving connecting rod and telescopic rod are ring body structurc, and are hollow knot inside sleeving connecting rod
Structure, telescopic rod are matched with the hollow structure of sleeving connecting rod, and the end of sleeving connecting rod and telescopic rod is provided with anti-dropout block, and two groups
The anti-dropout block matches, and the right end of the sleeving connecting rod is provided with ash scraper ring, and the ash scraper ring is internally provided with screw thread
Hole, the threaded hole are internally connected with threaded rod, and the rounded ring body structurc of ash scraper ring, the inner wall of the ring body structurc of ash scraper ring
It is provided with blade, is provided with limited block on the left of the anti-return plate.
Preferably, the anti-return plate semicircular in shape plate body structure, there are two the settings of anti-return plate, and two anti-return plates close
It is distributed in the central symmetry of discharge nozzle, and the contact surface of two anti-return plates is provided with push plate, two push plates match.
Preferably, blocking cap cylindrical structure in T shape, the longer portion and card of the T-shaped cylindrical structure of blocking cap
Access slot matches, and the shorter part of the T-shaped cylindrical structure of blocking cap is contacted with the plate face of anti-return plate.
Preferably, the rounded column structure of the threaded hole, threaded hole are provided with multiple, and multiple threaded holes run through simultaneously to be scraped
The setting of the outer wall of grey ring and sleeving connecting rod, and multiple threaded holes such as are isodistantly spaced at the outer wall that sizes are arranged in ash scraper ring and sleeving connecting rod
On.
Preferably, the blade is provided with three groups, and three groups of blades are fixedly connected on the inner wall of ash scraper ring, every group of blade
It is provided with multiple, multiple blades are isodistantly spaced etc., and sizes are arranged on the inner wall of ash scraper ring.
Preferably, the limited block offers the rectangular cylinder structure of material leakage slot in inside, limited block be provided with it is multiple, it is more
A limited block the sizes such as is isodistantly spaced and is arranged on the inner wall of discharge nozzle.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention setting rationally, functional, have with
Lower advantage:
1, the discharge nozzle of anti-return function is set on concrete pump ontology, compared to traditional discharge nozzle, anti-return function
The discharge nozzle of energy effectively avoids inevitably causing concrete delivery pipe when concrete conveyance pump pressure is smaller or mechanical disorder
Internal concrete reflux causes hopper to be saturated and overflow, causes ground and concrete pump fuselage when regurgitant volume is larger
On the problem of being stained with a large amount of concrete, bringing inconvenience to construction site；
2, it combines together in the back-flow preventer and discharge nozzle of the setting of the inside of concrete pump ontology, saves other purchase
The fund of other back-flow preventers and time, and ash scraper ring is set on the sleeving connecting rod inside discharge nozzle, ash scraper ring utilizes blade
By the concrete removal on telescopic rod, convenient for the mating connection of sleeving connecting rod and telescopic rod.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is discharge nozzle structural schematic diagram of the present invention；
Fig. 3 is adjusting rod structural schematic diagram of the present invention；
Fig. 4 is standoff features schematic diagram of the present invention.
In figure: concrete pump ontology 1, discharge nozzle 3, annular slot 4, limited block 5, flexible rubber pad 6, is prevented hopper 2
Back flow plate 7, hinge 8, connecting hole 9, adjusting rod 10, sleeving connecting rod 101, telescopic rod 102, clamping groove 11, blocking cap 12, anti-dropout block
13, ash scraper ring 14, blade 15, threaded hole 16.
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.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: including concrete pump ontology 1, hopper 2 and gone out
The right end of concrete pump ontology 1 is arranged in expects pipe 3, hopper 2, and the discharge outlet of hopper 2 is fixedly connected with discharge nozzle 3, out
The inner wall of expects pipe 3 is provided with annular slot 4, and the both ends of annular slot 4 are provided with flexible rubber pad 6, and set between annular slot 4
Anti-return plate 7 is set, anti-return plate 7 is connected on the inner wall of annular slot 4 by hinge 8, and the plate face of anti-return plate 7 is provided with company
Hole 9 is connect, the rounded column structure of connecting hole 9, connecting hole 9 is arranged through the outer wall of anti-return plate 7, and the inside of connecting hole 9 is set
It is equipped with adjusting rod 10, the left end of adjusting rod 10 is provided with clamping groove 11, and clamping groove 11 is matched with the clamping block of 12 right end of blocking cap,
And adjusting rod 10 includes sleeving connecting rod 101 and telescopic rod 102, sleeving connecting rod 101 and telescopic rod 102 are ring body structurc, and sleeving connecting rod
101 inside are hollow structure, and telescopic rod 102 matches with the hollow structure of sleeving connecting rod 101, sleeving connecting rod 101 and telescopic rod 102
End is provided with anti-dropout block 13, and two groups of anti-dropout blocks 13 match, and the right end of sleeving connecting rod 101 is provided with ash scraper ring
14, ash scraper ring 14 is internally provided with threaded hole 16, and threaded hole 16 is internally connected with threaded rod, and the rounded ring of ash scraper ring 14
Body structure, the inner wall of the ring body structurc of ash scraper ring 14 are provided with blade 15, and the left side of anti-return plate 7 is provided with limited block 5.
Further, 7 semicircular in shape plate body structure of anti-return plate, there are two the settings of anti-return plate 7, two anti-return plates 7
Central symmetry about discharge nozzle 3 is distributed, and the contact surface of two anti-return plates 7 is provided with push plate, and two push plates match.
Further, the cylindrical structure in T shape of blocking cap 12, the longer portion of the T-shaped cylindrical structure of blocking cap 12 with
Clamping groove 11 matches, and the shorter part of the T-shaped cylindrical structure of blocking cap 12 is contacted with the plate face of anti-return plate 7.
Further, the rounded column structure of threaded hole 16, threaded hole 16 are provided with multiple, and multiple threaded holes 16 pass through simultaneously
Wear the outer wall setting of ash scraper ring 14 and sleeving connecting rod 101, and multiple threaded holes 16 sizes such as are isodistantly spaced and are arranged in 14 He of ash scraper ring
On the outer wall of sleeving connecting rod 101.
Further, blade 15 is provided with three groups, and three groups of blades 15 are fixedly connected on the inner wall of ash scraper ring 14, and every group
Blade 15 is provided with multiple, and multiple blades 15 are isodistantly spaced etc., and sizes are arranged on the inner wall of ash scraper ring 14.
Further, limited block 5 offers the rectangular cylinder structure of material leakage slot in inside, limited block 5 be provided with it is multiple, it is more
A limited block 5 sizes such as is isodistantly spaced and is arranged on the inner wall of discharge nozzle 3.
Working principle: in use, discharge nozzle 3 is connect by ring flange with concrete conveying pipeline, it is mixed inside hopper 2
When solidifying soil is transported to discharge nozzle 3, the concrete of flowing pushes anti-return plate 7 to rotate along adjusting rod 10, sleeving connecting rod 101 and flexible
While the cooperation sliding of bar 102, the ash scraper ring 14 of 101 right end of sleeving connecting rod is with cutting blade 15 to the concrete of 102 outer wall of telescopic rod
Residual is cleared up, and during anti-return plate 7 cooperates hinge 8 to rotate, squeezes the flexible rubber pad 6 on 4 right side of annular slot, together
When the left side of annular slot 4 flexible rubber pad 6 bounce, prevent concrete from entering the inside of annular slot 4, work as concrete conveyance
When backflow phenomenon occurring inside pipe, before anti-return plate 7 is pushed to return to limited block 5 by the concrete of reflux, two anti-returns at this time
The push plate of 7 end of plate is closed, and cooperates the barrier effect of limited block 5, effectively avoids the reflux of concrete.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of construction concrete pump for preventing concrete from flowing back, including concrete pump ontology (1), hopper
(2) and discharge nozzle (3), it is characterised in that: right end of hopper (2) setting in concrete pump ontology (1), hopper
(2) discharge outlet is fixedly connected with discharge nozzle (3), and the inner wall of the discharge nozzle (3) is provided with annular slot (4), the ring
The both ends of shape card slot (4) are provided with flexible rubber pad (6), and anti-return plate (7) are arranged between annular slot (4), described to prevent back
Flowing plate (7) is connected on the inner wall of annular slot (4) by hinge (8), and the plate face of anti-return plate (7) is provided with connecting hole (9),
The rounded column structure of the connecting hole (9), outer wall of the connecting hole (9) through anti-return plate (7) are arranged, and connecting hole (9)
It is internally provided with adjusting rod (10), the left end of the adjusting rod (10) is provided with clamping groove (11), the clamping groove (11) and stifled
The clamping block of cap (12) right end matches, and adjusting rod (10) includes sleeving connecting rod (101) and telescopic rod (102), the sleeving connecting rod
(101) and telescopic rod (102) is ring body structurc, and is hollow structure, telescopic rod (102) and socket inside sleeving connecting rod (101)
The hollow structure of bar (101) matches, and the end of sleeving connecting rod (101) and telescopic rod (102) is provided with anti-dropout block (13),
Anti-dropout block (13) described in two groups matches, and the right end of the sleeving connecting rod (101) is provided with ash scraper ring (14), the ash scraper ring
(14) be internally provided with threaded hole (16), the threaded hole (16) is internally connected with threaded rod, and ash scraper ring (14) is in circle
Shape ring body structurc, the inner wall of the ring body structurc of ash scraper ring (14) are provided with blade (15), the left side setting of the anti-return plate (7)
There are limited block (5).
2. a kind of construction concrete pump for preventing concrete from flowing back according to claim 1, feature exist
In anti-return plate (7) the semicircular in shape plate body structure, there are two anti-return plate (7) settings, two anti-return plates (7) about
The central symmetry of discharge nozzle (3) is distributed, and the contact surface of two anti-return plates (7) is provided with push plate, and two push plates match.
3. a kind of construction concrete pump for preventing concrete from flowing back according to claim 1, feature exist
In: the blocking cap (12) cylindrical structure in T shape, the longer portion and clamping groove of the T-shaped cylindrical structure of blocking cap (12)
(11) it matches, the shorter part of the T-shaped cylindrical structure of blocking cap (12) is contacted with the plate face of anti-return plate (7).
4. a kind of construction concrete pump for preventing concrete from flowing back according to claim 1, feature exist
In the rounded column structure of the threaded hole (16), threaded hole (16) is provided with multiple, and multiple threaded holes (16) are simultaneously through scraping
The setting of the outer wall of grey ring (14) and sleeving connecting rod (101), and multiple threaded holes (16) sizes such as are isodistantly spaced and are arranged in ash scraper ring
(14) and on the outer wall of sleeving connecting rod (101).
5. a kind of construction concrete pump for preventing concrete from flowing back according to claim 1, feature exist
In: the blade (15) is provided with three groups, and three groups of blades (15) are fixedly connected on the inner wall of ash scraper ring (14), every group of blade
(15) it is provided with multiple, multiple blades (15) are isodistantly spaced etc., and sizes are arranged on the inner wall of ash scraper ring (14).
6. a kind of construction concrete pump for preventing concrete from flowing back according to claim 1, feature exist
In: the limited block (5) is provided with multiple, multiple limits in the internal rectangular cylinder structure for offering material leakage slot, limited block (5)
Block (5) sizes such as is isodistantly spaced and is arranged on the inner wall of discharge nozzle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811412114.1A CN109356809B (en) | 2018-11-25 | 2018-11-25 | Concrete pump for preventing concrete from flowing back for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811412114.1A CN109356809B (en) | 2018-11-25 | 2018-11-25 | Concrete pump for preventing concrete from flowing back for building construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356809A true CN109356809A (en) | 2019-02-19 |
| CN109356809B CN109356809B (en) | 2021-08-17 |
Family
ID=65338676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811412114.1A Expired - Fee Related CN109356809B (en) | 2018-11-25 | 2018-11-25 | Concrete pump for preventing concrete from flowing back for building construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356809B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9418282U1 (en) * | 1994-11-15 | 1995-01-05 | Meyer, Bernhard, 33647 Bielefeld | Flap valve |
| JPH07253077A (en) * | 1994-03-14 | 1995-10-03 | Ishigaki Mech Ind Co | Changeover device of valve at carrying device of heavily viscous object |
| CN201460232U (en) * | 2009-06-15 | 2010-05-12 | 黑龙江宇辉新型建筑材料有限公司 | Unidirectional grout pipe with non-return function |
| CN203286058U (en) * | 2013-04-19 | 2013-11-13 | 胡光荣 | Sewage valve |
| CN203604135U (en) * | 2013-11-22 | 2014-05-21 | 钱家忠 | Forcing type concrete mixing and delivering pump |
| CN206206709U (en) * | 2016-11-29 | 2017-05-31 | 上海朗绿建筑科技股份有限公司 | A kind of check-valves |
-
2018
- 2018-11-25 CN CN201811412114.1A patent/CN109356809B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253077A (en) * | 1994-03-14 | 1995-10-03 | Ishigaki Mech Ind Co | Changeover device of valve at carrying device of heavily viscous object |
| DE9418282U1 (en) * | 1994-11-15 | 1995-01-05 | Meyer, Bernhard, 33647 Bielefeld | Flap valve |
| CN201460232U (en) * | 2009-06-15 | 2010-05-12 | 黑龙江宇辉新型建筑材料有限公司 | Unidirectional grout pipe with non-return function |
| CN203286058U (en) * | 2013-04-19 | 2013-11-13 | 胡光荣 | Sewage valve |
| CN203604135U (en) * | 2013-11-22 | 2014-05-21 | 钱家忠 | Forcing type concrete mixing and delivering pump |
| CN206206709U (en) * | 2016-11-29 | 2017-05-31 | 上海朗绿建筑科技股份有限公司 | A kind of check-valves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109356809B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108252521B (en) | Vacuum negative pressure type grouting method and system | |
| WO2015108731A3 (en) | Concrete pump system and method | |
| CN104474771A (en) | Backwash water quality filter system | |
| EP2890893A1 (en) | Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow | |
| CN108404471A (en) | The cleaning device of filter press | |
| CN109356809A (en) | A kind of construction concrete pump for preventing concrete from flowing back | |
| CN210739458U (en) | Purge valve and pumping system | |
| CN105275792A (en) | Distribution device of concrete pumping device and concrete pumping device | |
| CN107234076B (en) | Rust removal device for pre-buried exposed reinforcing steel bars of building engineering and use method of rust removal device | |
| CN108745693B (en) | Be used for anticorrosive spray gun of high voltage power transmission and transformation framework | |
| KR100882859B1 (en) | Apparatus for conveying sludge | |
| KR101712656B1 (en) | Concrete mortar construction equipment pulsation prevention device | |
| CN208320086U (en) | The cleaning device of filter press | |
| CN109083819B (en) | Anti-blocking grouting pump and slurry discharging structure | |
| KR0120715B1 (en) | Method for lining inner side wall of pipe and lining apparatus | |
| CN208405750U (en) | A kind of applicator of automatic chemical feeding | |
| CN110975399A (en) | Primary petroleum treatment device for petroleum pipeline | |
| WO2016209176A2 (en) | Apparatus for application of corrosion control compounds into flange gaps | |
| CN204754284U (en) | Reinforcing bar splitter in building discarded object | |
| CN110657261B (en) | Cleaning valve, pumping system and construction method of pumping system | |
| US2432671A (en) | Grouting attachment for concrete pumps | |
| CN210949278U (en) | Water outlet joint of fire pump | |
| CN218293645U (en) | Underground sprinkler | |
| DE2622076A1 (en) | Concrete spraying machine with auger mortar supply - has annular mixing air nozzle surrounding supply pipe outlet into mixing chamber | |
| CN214063278U (en) | High-pressure-resistant hydraulic oil pump |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Junjie Inventor after: Zhao Yun Inventor after: Qiu Jianhong Inventor before: Qiu Jianhong |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210726 Address after: No. 194, Zhaoyang Avenue, Zhaoyang District, Zhaotong City, Yunnan Province Applicant after: Zhaotong kunqiao Expressway Investment Development Co.,Ltd. Address before: 364015 Longmen Town, Longmen Town, Longmen Town, Xinluo District, Longyan, Fujian 142 Applicant before: Qiu Jianhong |
|
| 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: 20210817 |