CN109763652B - Building construction working face sprays dust fall heat sink - Google Patents

Building construction working face sprays dust fall heat sink Download PDF

Info

Publication number
CN109763652B
CN109763652B CN201910114263.8A CN201910114263A CN109763652B CN 109763652 B CN109763652 B CN 109763652B CN 201910114263 A CN201910114263 A CN 201910114263A CN 109763652 B CN109763652 B CN 109763652B
Authority
CN
China
Prior art keywords
bottom plate
water
plate
pipe
air
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
Application number
CN201910114263.8A
Other languages
Chinese (zh)
Other versions
CN109763652A (en
Inventor
赵德华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Yuxiang Construction Engineering Co ltd
Original Assignee
Sichuan Yuxiang Construction Engineering Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Yuxiang Construction Engineering Co ltd filed Critical Sichuan Yuxiang Construction Engineering Co ltd
Priority to CN201910114263.8A priority Critical patent/CN109763652B/en
Publication of CN109763652A publication Critical patent/CN109763652A/en
Application granted granted Critical
Publication of CN109763652B publication Critical patent/CN109763652B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a spraying dust-settling and cooling device for a building construction working face, which relates to the technical field of building machinery, and comprises a bottom plate, wherein two ends of the bottom end of the bottom plate are symmetrically and rotatably connected with two moving wheels through a rotating shaft, one end of the bottom plate is fixedly connected with a handrail through a bolt, a controller is arranged on the outer wall of one side of the handrail opposite to the bottom plate, a water tank is arranged on one side of the upper surface of the bottom plate, which is adjacent to the handrail, and a water pump connected with the water tank through a pipeline is fixedly connected at the position, close to the front side of the water tank, of the upper surface of the bottom plate through a bolt. The construction work of workers is convenient.

Description

Building construction working face sprays dust fall heat sink
Technical Field
The invention belongs to the technical field of construction machinery, and particularly relates to a spraying dust-reducing and cooling device for a construction working face.
Background
The construction machinery is a general name of mechanical equipment used for engineering construction and urban and rural construction, and comprises various machines such as excavating machinery, shovel soil transportation machinery, compaction machinery, engineering hoisting machinery, piling machinery, pavement machinery, concrete product machinery, reinforced bar-level prestressed machinery, decoration machinery and high-altitude operation machinery, and the spraying dust-settling and cooling device is one of the construction machinery and plays a role in settling dust and cooling on a construction site by spraying water mist so as to optimize the working environment of the construction site.
However, the spraying, dust-reducing and cooling device for the construction working face in the current market still has certain defects in the spraying process, for example, the spraying height cannot be adjusted by the device, the spraying cannot be performed on areas with different heights in a construction site, the dust-reducing and cooling effect is poor, and in addition, when the device is moved to spray, water mist on the front side of a worker is easy to float and adhere to the body of the worker, so that the visual field of the worker is weakened, and the spraying operation of the worker is influenced.
Disclosure of Invention
The invention aims to provide a spraying dust-reducing and cooling device for a building construction working face, which aims to solve the problems that the device provided in the background technology cannot spray areas with different heights on a construction site, the dust-reducing and cooling effects are poor, in addition, water mist on the front of a worker is easy to float and adhere to the body of the worker, the visual field of the worker is weakened, and the spraying working efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme: a spraying dust-reducing and cooling device for a building construction working face comprises a bottom plate, wherein two ends of the bottom end of the bottom plate are symmetrically and rotatably connected with two moving wheels through rotating shafts, one end of the bottom plate is fixedly connected with a handrail through a bolt, a controller is installed on the outer wall of one side, opposite to the bottom plate, of the handrail, a water tank is installed on one side, adjacent to the handrail, of the upper surface of the bottom plate, a water pump connected with the water tank through a pipeline is fixedly connected to the position, close to the front side of the water tank, of the upper surface of the bottom plate through a bolt, a supporting frame is installed on one side, opposite to the water pump, of the upper surface of the bottom plate, sliding rods are fixed to four corners of the upper surface of the supporting frame, a telescopic column is installed at the middle position of the upper surface of, a storage battery is arranged on one side of the air compressor, which is opposite to the air cylinder, a movable plate is arranged on the top end of the telescopic column, a sleeve is fixed at the middle position of the top end of the movable plate, a spray pipe which is arranged in a T-shaped structure is arranged on the top end of the sleeve, a water inlet pipe communicated with the spray pipe is arranged inside the sleeve, the top ends of the four slide bars respectively penetrate through four corners of the movable plate and extend to the upper part of the movable plate, a limiting plate is arranged on the top end of the movable plate, sliding sleeves are arranged at the joints of the movable plate and the four slide bars, a water feeding hose is connected between the movable plate and the supporting frame and positioned on one side of the telescopic column, one end of the water inlet pipe, which is opposite to the spray pipe, extends to the outside of the sleeve and is connected with the top, the controller is electrically connected with the storage battery;
the utility model discloses a portable air purifier, including bottom plate upper surface, air exhauster, filter box, horizontal direction, air inlet tube, connecting pipe, air inlet tube, air inlet hose, booster pump and controller electric connection, the air exhauster is installed through the backup pad to the bottom plate upper surface just is located one side that the support frame is adjacent to the water tank, the bottom plate upper surface just is located the below that the support frame is adjacent to the air exhauster and is fixed with the rose box that passes through the pipe connection with the air exhauster, there is the booster pump through the pipe connection between rose box and the water tank, and the inside of rose box installs three filter screen along vertical direction equidistance, the fixed plate that the bolt fixedly connected with vertical setting is passed through to the movable plate adjacent to the one end of air exhauster, and.
Preferably, two illuminating lamps are symmetrically arranged on the upper surface of the bottom plate relative to one side of the handrail, and the illuminating lamps are electrically connected with the controller.
Preferably, four the outside cover in both ends of slide bar is all equipped with the blotter, and the cross sectional shape of blotter and the cross sectional shape phase-match of sliding sleeve.
Preferably, it is three the inside of filter screen all is provided with the active carbon filter layer, and three filter screen is detachable structure.
Compared with the prior art, the invention has the beneficial effects that:
(1) the device is provided with the air cylinder, the air compressor, the sliding rod, the sliding sleeve and the telescopic column, in the spraying operation process of the device, workers can control the air compressor to work through the controller, the air compressor drives the air cylinder to work, the telescopic column is driven to lift, the movable plate slides up and down along the sliding rod through the sliding sleeve, and then the spraying pipe is driven to lift, so that spraying is convenient to areas with different heights in a construction site, the dust fall cooling efficiency is improved, the problems that the device cannot spray the areas with different heights in the construction site, and the dust fall cooling effect is poor are solved, the environment quality of the construction site is effectively improved, and the workers can conveniently carry out construction work.
(2) The invention is provided with the air inlet cylinder, the air inlet hose, the connecting pipe, the exhaust fan, the filter box and the booster pump, in the moving spraying process, a worker can control the exhaust fan to work through the controller, the exhaust fan inhales air through the air inlet hose and the connecting pipe, so that water mist in front of the worker is sucked in by the air inlet cylinder, then the water mist is conveyed into the filter box through a pipeline under the action of the exhaust fan, the water mist is filtered under the action of the filter screen in the filter box, dust particles doped in the water mist are removed, the filtered water is conveyed into the water box through the pipeline under the action of the booster pump, the recycling of water resources is realized, resources are saved, the phenomenon that the water mist floats to the body of the worker to influence the operation of the worker is avoided, the spraying operation of the.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is an internal structural view of a filtration tank of the present invention;
FIG. 4 is a block circuit diagram of the present invention;
in the figure: 1-a bottom plate; 2-a cylinder; 3, an air compressor; 4-a storage battery; 5-lighting lamp; 6-a support frame; 7-a slide bar; 8, moving a board; 9-a sliding sleeve; 10-a limiting plate; 11-a spray pipe; 12-a water inlet pipe; 13-a sleeve; 14-a telescopic column; 15-a buffer pad; 16-water delivery hose; 17-a filter box; 18-a moving wheel; 19-a controller; 20-a handrail; 21-a water pump; 22-a water tank; 23-a booster pump; 24-an exhaust fan; 25-air inlet hose; 26-a connecting tube; 27-a fixing plate; 28-air inlet cylinder; 29-a filter screen; 30-water conveying pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a spraying dust-settling and cooling device for a building construction working face comprises a bottom plate 1, two ends of the bottom end of the bottom plate 1 are symmetrically and rotatably connected with two moving wheels 18 through rotating shafts, one end of the bottom plate 1 is fixedly connected with a handrail 20 through a bolt, a controller 19 is installed on the outer wall of one side, opposite to the bottom plate 1, of the handrail 20, the model of the controller 19 is a PLC CPU226, the output frequency is 50KHZ, the working voltage is 220V, a water tank 22 is installed on one side, adjacent to the handrail 20, of the upper surface of the bottom plate 1, a water pump 21 connected with the water tank 22 through a pipeline is fixedly connected to the position, close to the front side of the water tank 22, of the upper surface of the bottom plate 1 through a bolt, the water pump 21 adopts a 50CQ-25 water pump, the voltage is 380V, the rotating speed is 2900r/min, the flow is 14.4 m/h, a support frame 6 is installed on one side, a telescopic column 14 is arranged at the middle position of the upper surface of the support frame 6, a cylinder 2 connected with the telescopic column 14 is fixed on the upper surface of the bottom plate 1 and positioned in the support frame 6, an air compressor 3 is connected with one side of the cylinder 2 through a pipeline, a storage battery 4 is arranged at one side of the air compressor 3 opposite to the cylinder 2, a movable plate 8 is arranged at the top end of the telescopic column 14, a sleeve 13 is fixed at the middle position of the top end of the movable plate 8, a spray pipe 11 arranged in a T-shaped structure is arranged at the top end of the sleeve 13, a water inlet pipe 12 communicated with the spray pipe 11 is arranged in the sleeve 13, the top ends of the four slide bars 7 respectively penetrate through four corners of the movable plate 8 and extend to the upper part of the movable plate 8, and are provided with a limiting plate 10, the limiting plate 10 can limit the slide sleeve 9, prevent the slide sleeve 9 from slipping off, one side between the movable plate 8 and the support frame 6 and located at the telescopic column 14 is connected with a water supply hose 16, one end of the water inlet pipe 12, which is opposite to the spraying pipe 11, extends to the outside of the sleeve 13 and is connected with the top end of the water supply hose 16, one end of the water pump 21 is connected with a water delivery pipe 30 communicated with the bottom end of the water supply hose 16, the air compressor 3 and the water pump 21 are both electrically connected with the controller 19, the controller 19 is electrically connected with the storage battery 4, in the spraying operation process, a worker can control the air compressor 3 to work through the controller 19, the air compressor 3 drives the air cylinder 2 to work and drives the telescopic column 14 to ascend and descend, so that the movable plate 8 slides up and down along the sliding rod 7 through the sliding sleeve 9, the ascending and descending of the spraying pipe 11 are further driven.
Further, an exhaust fan 24 is installed on the upper surface of the base plate 1 and on one side of the support frame 6 adjacent to the water tank 22 through a support plate, a filter box 17 connected with the exhaust fan 24 through a pipeline is fixed on the upper surface of the base plate 1 and below the exhaust fan 24, a booster pump 23 is connected between the filter box 17 and the water tank 22 through a pipeline, the booster pump 23 adopts an ISG20-160 booster pump, the voltage of the booster pump is 380V, the flow rate is 2.5 m/h, the rotating speed is 2900r/min, the power is 1.1kw, three filter screens 29 are installed inside the filter box 17 at equal intervals along the vertical direction, one end of the movable plate 8 adjacent to the exhaust fan 24 is fixedly connected with a vertically arranged fixed plate 27 through bolts, three air inlet drums 28 are installed at equal intervals along the horizontal direction at the top end of the fixed plate 27, the air inlet drums 28 are arranged in a horn shape, external air is conveniently sucked, one ends of the three air inlet drums, and the bottom end of the connecting pipe 26 is connected with an air inlet hose 25 communicated with the air inlet end of the exhaust fan 24, the booster pump 23 and the exhaust fan 24 are both electrically connected with the controller 19, in the mobile spraying process, a worker can control the exhaust fan 24 to work through the controller 19, the exhaust fan 24 inhales through the air inlet hose 25 and the connecting pipe 26, so that water mist in front of the worker is absorbed by the air inlet drum 28, and then is conveyed into the filter box 17 through a pipeline under the action of the exhaust fan 24, and is filtered under the action of the filter screen 29 in the filter box 17 to remove dust particles doped in the water mist, and the filtered water is conveyed into the water tank 22 through the pipeline under the action of the booster pump 23, so that the cyclic utilization of water resources is realized, meanwhile, the water mist is prevented from floating to the body of the worker.
Specifically, two light 5 are installed for one side symmetry of handrail 20 to bottom plate 1 upper surface, and light 5 and 19 electric connection of controller, under the not enough condition of light, light 5 can provide the illumination to the workman sprays the operation.
It is worth to say that, the outside cover in both ends of four slide bars 7 is all equipped with blotter 15, and the cross sectional shape of blotter 15 and the cross sectional shape phase-match of sliding sleeve 9, and blotter 15 can play the effect of buffering to sliding sleeve 9, prevents to take place hard contact between sliding sleeve 9 and support frame 6 and the limiting plate 10.
Further, the inside of three filter screen 29 all is provided with the active carbon filter layer, and three filter screen 29 is detachable structure, and detachable structure is convenient for filter screen 29 and can regularly clear up to guarantee filter screen 29's filter effect.
The working principle and the using process of the invention are as follows: when the device is used, a worker pushes the device through the handrail 20 to enable the device to move to a construction site under the action of the moving wheel 18, then the power supply of the device is turned on through the controller 19, the storage battery 4 provides electric power, at the same time, the water pump 21 works to pump out water in the water tank 22 through a pipeline and convey the water to the spraying pipe 11 through the water conveying pipe 30 and the water inlet pipe 12, the water is sprayed out from the left direction, the right direction and the front direction through the spraying pipe 11 to reduce dust and cool, meanwhile, the worker can push the device through the handrail 20 to enable the device to move to spray under the action of the moving wheel 18 to spray different areas of the construction site, in the spraying process of the device, the worker can control the air compressor 3 to work through the controller 19, drive the air cylinder 2 to work through the air compressor 3 and drive the telescopic column 14 to ascend and descend, so that the moving plate 8 slides, be convenient for spray the not region of co-altitude in the place of construction, improve the efficiency of dust fall cooling, in addition, in the removal spraying in-process, workman accessible controller 19 control air exhauster 24 work, air exhauster 24 inhales through air inlet hose 25 and connecting pipe 26, make the water smoke in workman dead ahead inhale by air inlet tube 28, then in importing filter tank 17 through the pipeline under the effect of air exhauster 24, filter under the effect of the inside filter screen 29 of filter tank 17, get rid of the dust particle of adulteration in the water smoke, water after the filtration is in booster pump 23's effect is exported into water tank 22 through the pipeline, in order to realize the cyclic utilization of water resource, resources are saved, avoid water smoke to float to the workman on one's body simultaneously, influence the workman operation, workman's spraying efficiency has been improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a building construction working face sprays dust fall heat sink which characterized in that: the device comprises a bottom plate (1), two moving wheels (18) are symmetrically and rotatably connected to two ends of the bottom end of the bottom plate (1) through rotating shafts, a handrail (20) is fixedly connected to one end of the bottom plate (1) through bolts, a controller (19) is installed on the outer wall of one side, opposite to the bottom plate (1), of the handrail (20), a water tank (22) is installed on one side, adjacent to the handrail (20), of the upper surface of the bottom plate (1), a water pump (21) connected with the water tank (22) through a pipeline is fixedly connected to the position, close to the front side of the water tank (22), of the upper surface of the bottom plate (1), a support frame (6) is installed on one side, opposite to one side of the water pump (21), four upper surfaces of the support frame (6) are respectively fixed with a sliding rod (7), and a telescopic column (14) is installed at the, the upper surface of the bottom plate (1) is located inside a support frame (6) and is fixedly provided with a cylinder (2) connected with a telescopic column (14), one side of the cylinder (2) is connected with an air compressor (3) through a pipeline, one side of the air compressor (3) relative to the cylinder (2) is provided with a storage battery (4), the top end of the telescopic column (14) is provided with a movable plate (8), a sleeve (13) is fixed at the middle position of the top end of the movable plate (8), a spray pipe (11) arranged in a T-shaped structure is installed at the top end of the sleeve (13), a water inlet pipe (12) communicated with the spray pipe (11) is arranged inside the sleeve (13), the top ends of four slide bars (7) respectively penetrate through four corners of the movable plate (8) and extend to the upper side of the movable plate (8) and are provided with a limiting plate (10), and sliding sleeves (9) are arranged at the joints of the, a water supply hose (16) is connected to one side, which is located on the telescopic column (14), between the moving plate (8) and the support frame (6), one end of the water inlet pipe (12) opposite to the spray pipe (11) extends to the outside of the sleeve (13) and is connected with the top end of the water supply hose (16), one end of the water pump (21) is connected with a water pipe (30) communicated with the bottom end of the water supply hose (16), the air compressor (3) and the water pump (21) are both electrically connected with a controller (19), and the controller (19) is electrically connected with the storage battery (4);
the utility model discloses a spray pipe, including bottom plate (1), bottom plate (1) upper surface and be located one side that support frame (6) is adjacent to water tank (22) and install air exhauster (24) through the backup pad, bottom plate (1) upper surface just is located the below of air exhauster (24) and is fixed with rose box (17) through the pipe connection with air exhauster (24), there is booster pump (23) through the pipe connection between rose box (17) and water tank (22), and installs three filter screen (29) along vertical direction equidistance in rose box (17) inside, bolt fixedly connected with vertically set up fixed plate (27) is passed through to the one end that movable plate (8) are adjacent to air exhauster (24), and installs three air-supply line section of thick bamboo (28) along horizontal direction equidistance on the top of fixed plate (27), and three air-supply line section of thick bamboo (28) all are connected with connecting pipe, and the bottom of connecting pipe (26) is connected with air inlet hose (25) that communicates with the air inlet end of air exhauster (24), booster pump (23) and air exhauster (24) all with controller (19) electric connection.
2. The spraying dust-reducing and temperature-reducing device for the construction working face of claim 1, which is characterized in that: two illuminating lamps (5) are symmetrically arranged on the upper surface of the base plate (1) relative to one side of the handrail (20), and the illuminating lamps (5) are electrically connected with the controller (19).
3. The spraying dust-reducing and temperature-reducing device for the construction working face of claim 1, which is characterized in that: four the outside cover in both ends of slide bar (7) all is equipped with blotter (15), and the cross sectional shape of blotter (15) and the cross sectional shape phase-match of sliding sleeve (9).
4. The spraying dust-reducing and temperature-reducing device for the construction working face of claim 1, which is characterized in that: three the inside of filter screen (29) all is provided with the active carbon filter layer, and three filter screen (29) are detachable structure.
CN201910114263.8A 2019-02-14 2019-02-14 Building construction working face sprays dust fall heat sink Expired - Fee Related CN109763652B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910114263.8A CN109763652B (en) 2019-02-14 2019-02-14 Building construction working face sprays dust fall heat sink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910114263.8A CN109763652B (en) 2019-02-14 2019-02-14 Building construction working face sprays dust fall heat sink

Publications (2)

Publication Number Publication Date
CN109763652A CN109763652A (en) 2019-05-17
CN109763652B true CN109763652B (en) 2021-03-12

Family

ID=66456167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910114263.8A Expired - Fee Related CN109763652B (en) 2019-02-14 2019-02-14 Building construction working face sprays dust fall heat sink

Country Status (1)

Country Link
CN (1) CN109763652B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112049424A (en) * 2020-08-14 2020-12-08 潘宇力 Automatic concrete pouring equipment for building construction and working method thereof
CN112538827B (en) * 2020-12-11 2022-10-25 中冶东北建设(沈阳)工程技术有限公司 A curing means for road and bridge
CN113492463B (en) * 2021-07-06 2022-04-01 江苏省建筑工程集团第二工程有限公司 Dust device sprays that building construction site used
CN113653349B (en) * 2021-07-27 2022-12-20 中建三局科创产业发展有限公司 A hand-held type water spray curing means for building outer wall
CN113750700B (en) * 2021-09-09 2022-09-13 青岛康太源建设集团有限公司 Based on construction is with spraying dust fall heat sink

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4054267B2 (en) * 2003-02-25 2008-02-27 株式会社フジタ Water spray curing method for dam body in RCD method
CN107326850A (en) * 2017-08-22 2017-11-07 郑州丽福爱生物技术有限公司 Double-type builds dust arrester
CN208329665U (en) * 2018-05-23 2019-01-04 湖北理工学院 A kind of construction work surface spray dust cooling device
CN108999400B (en) * 2018-09-03 2020-12-11 博兴兴博城建投资集团有限公司 Watering equipment for building construction dust fall

Also Published As

Publication number Publication date
CN109763652A (en) 2019-05-17

Similar Documents

Publication Publication Date Title
CN109763652B (en) Building construction working face sprays dust fall heat sink
CN210522614U (en) Civil engineering construction waste treatment device
CN204491488U (en) The special dedusting moisturizing device in a kind of building site
CN205688385U (en) A kind of pavement construction vacuum sweeper
CN109173546A (en) A kind of engineering explosion can be improved dust removing effects dust decomposition apparatus
CN206494482U (en) A kind of high-effective dust-removing environmental protecting device
CN207295592U (en) A kind of construction of the highway dust exhaust apparatus
CN107794880B (en) A kind of cleaning for municipal engineering construction is mechanical
CN214871670U (en) A dust pelletizing system for concrete mixing plant
CN110102129A (en) A kind of efficient depositing dust machine of civil engineering
CN2705238Y (en) Movable spray-painting room
CN203566507U (en) Novel lifting hook type shot blasting machine
CN111574090A (en) Reinforced manufacturing equipment for recycled aggregate for building
CN211038726U (en) Underground tunneling wet dust collector
CN211140945U (en) Dust collecting device for pre-feeding hopper of mixing plant
CN212467515U (en) Dust shaker for agricultural processing
CN212091434U (en) Special waste gas collection device of plastic uptake machine
CN208245304U (en) A kind of rubbish conveying dust-extraction unit conducive to environmental protection
CN210081500U (en) Rotor sand blasting machine
CN202438220U (en) Contour plate high-temperature dust remover
CN203061000U (en) Water curtain type paint mist purification device
CN207357462U (en) A kind of water rotation type circulates paint spray booth
CN209334301U (en) A kind of New Building Materials dust cleaning equipment of environmental protection
CN212985276U (en) Coal mine spraying dust-settling equipment
CN208468750U (en) A kind of construction material perforating device

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
TA01 Transfer of patent application right

Effective date of registration: 20210222

Address after: 610047 1st floor, no.3-30, Changyi street, Wuhou District, Chengdu City, Sichuan Province

Applicant after: Sichuan Yuxiang Construction Engineering Co.,Ltd.

Address before: 239500 No.03, Sunying group, Jieshou village, Shizi Town, Quanjiao County, Chuzhou City, Anhui Province

Applicant before: Zhao Dehua

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210312

CF01 Termination of patent right due to non-payment of annual fee