CN109622525A - One kind being used for natural gas line cleaner - Google Patents

One kind being used for natural gas line cleaner Download PDF

Info

Publication number
CN109622525A
CN109622525A CN201811404943.5A CN201811404943A CN109622525A CN 109622525 A CN109622525 A CN 109622525A CN 201811404943 A CN201811404943 A CN 201811404943A CN 109622525 A CN109622525 A CN 109622525A
Authority
CN
China
Prior art keywords
mounting plate
natural gas
gas line
drive disk
fixed ring
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.)
Pending
Application number
CN201811404943.5A
Other languages
Chinese (zh)
Inventor
邹杨
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.)
Wuhu Medium Combustion City Gas Development Co Ltd
Original Assignee
Wuhu Medium Combustion City Gas Development 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 Wuhu Medium Combustion City Gas Development Co Ltd filed Critical Wuhu Medium Combustion City Gas Development Co Ltd
Priority to CN201811404943.5A priority Critical patent/CN109622525A/en
Publication of CN109622525A publication Critical patent/CN109622525A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/049Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • B08B9/051Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/049Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00Details of machines or methods for cleaning hollow articles
    • B08B2209/02Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/04Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses one kind to be used for natural gas line cleaner, including mounting plate, the mounting plate left and right ends are symmetrically arranged with driving mechanism, driving mechanism is electrically connected the control panel being located on mounting plate, driving mechanism includes fixed ring, fixed ring is connected and fixed with connecting rod and mounting plate, the fixed ring middle position is connected and fixed seat by locating rod, the middle position of the fixing seat is equipped with adjusting motor, the present invention is improved for the shortcomings that existing apparatus, when in use, drive disk rotation is driven by adjusting motor, drive disk can affect kinematic link to rotate when rotating, kinematic link drives piston rod to slide along guide sleeve, to adjust the diameter of idler wheel position, thus device can be facilitated to be mounted on inside different-diameter natural gas line, idler wheel rotation is driven by driving motor, so that whole device is in pipe Road inner wall is mobile, practical to cooperate cleaning modul to clear up inner wall of the pipe.

Description

One kind being used for natural gas line cleaner
Technical field
It is specifically a kind of to be used for natural gas line cleaner the present invention relates to natural gas facility technical field.
Background technique
During natural gas transportation, need using a large amount of natural gas line, natural gas line is usually closed Pipeline may accumulate various impurity in use year in year out, and form blocking, to largely effect on the transmission of natural gas Efficiency.Natural gas line just needs to remove cleaning once blocking, and traditional method is that worker is cleared up using brush by hand, cleaning speed Degree is slow, and the amount of labour is big, and working strength is high, takes a long time, and working efficiency is low, and clean rate is relatively low, for production high-volume.
To solve the above-mentioned problems, a kind of cleaner of patent disclosure that existing patent announcement number is CN207026035U, But the manner of cleaning up of this device is protruded into from natural gas tube one end, is cleared up tube wall, this manner of cleaning up results in The device can only clear up the tube wall at proximal port.
In view of the above-mentioned problems, there is presently provided a kind of natural gas line cleaner.
Summary of the invention
The purpose of the present invention is to provide one kind to be used for natural gas line cleaner, to solve to propose in above-mentioned background technique The problem of.
To achieve the above object, the invention provides the following technical scheme:
One kind being used for natural gas line cleaner, including mounting plate, the mounting plate left and right ends are symmetrically arranged with driving machine Structure, driving mechanism are electrically connected the control panel being located on mounting plate, and driving mechanism includes fixed ring, fixed ring and connecting rod with Mounting plate is connected and fixed, and the fixed ring middle position is connected and fixed seat, the middle position peace of the fixing seat by locating rod Equipped with motor is adjusted, the output end for adjusting motor is equipped with rotation axis, and rotation axis end is equipped with drive disk, and drive disk is same with fixed ring Axis setting, the fixed ring outboard array is distributed with several guide sleeves, piston rod is sliding combined in the guide sleeve, described Piston rod outer end is equipped with driving motor, and the output end of driving motor is equipped with driving wheel, and the drive disk outboard array is distributed with Three kinematic links, kinematic link and drive disk are rotatablely connected, and the drive rod outer end connect with piston rod rotation, using When, drive disk rotation is driven by adjusting motor, drive disk can affect kinematic link to rotate when rotating, kinematic link band piston Bar is slided along guide sleeve, to adjust the diameter of idler wheel position, thus device can be facilitated to be mounted on different-diameter day Inside right feed channel.
The cleaning modul being electrically connected with control panel is additionally provided on the mounting plate.
As a further solution of the present invention: the cleaning modul includes the swivel becket that rotation is set on mounting plate, is turned Rolling bearing is equipped between rotating ring and mounting plate, the swivel becket outboard array is distributed with several telescopic rods, telescopic rod it is defeated Outlet is equipped with cleaning head, and driven ring gear is equipped on the outside of the swivel becket, is equipped on the mounting plate on the left of the driven ring gear Motor is cleared up, the output end for clearing up motor is equipped with driving gear, and driving gear and driven ring gear are intermeshed, in cleaning motor Under drive, driving gear is rotated by driven tooth annulus turn rotating ring, and swivel becket drives telescopic rod and the cleaning positioned at its end Head rotation here can be flexible by telescopic rod to clear up inner wall of the pipe, clear to carry out to different-diameter tube wall Reason.
As a further solution of the present invention: it is additionally provided with wireless module and GPS positioning module on the control panel, so as to The position of staff's remote control device is additionally provided on the mounting plate convenient for the photographing module of observation inner wall of the pipe, photographing module Including camera, protective cover is equipped on the outside of camera.
As a further solution of the present invention: the cleaning head includes the hairbrush of several array distributions and scrapes tablet.
As a further solution of the present invention: the control panel is electrically connected battery, and battery charges equipped with USB Jack.
Compared with prior art, the beneficial effects of the present invention are: the present invention improves the shortcomings that being directed to existing apparatus, In use, driving drive disk rotation by adjusting motor, drive disk can affect kinematic link to rotate when rotating, and kinematic link drives Piston rod is slided along guide sleeve, to adjust the diameter of idler wheel position, can thus facilitate device to be mounted on different straight Inside diameter natural gas line, idler wheel rotation is driven by driving motor, so that whole device is mobile in inner wall of the pipe, so as to Cooperation cleaning modul clears up inner wall of the pipe, practical.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of driving mechanism in the present invention.
Fig. 3 is the structural schematic diagram of swivel becket in the present invention.
Wherein: mounting plate 1, connecting rod 2, fixed ring 3, locating rod 31, rotation axis 32, fixing seat 33, guide sleeve 34, piston Bar 35, drive disk 37, telescopic rod 4, idler wheel 5, protective cover 6, camera 7, control panel 8, cleaning motor 9, drives kinematic link 36 Moving gear 10, swivel becket 11, rolling bearing 12, telescopic rod 13, cleaning head 14, driven ring gear 15, battery 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.
Please refer to Fig. 1~3, in the embodiment of the present invention, one kind being used for natural gas line cleaner, including mounting plate 1, described 1 left and right ends of mounting plate are symmetrically arranged with driving mechanism, and driving mechanism is electrically connected the control panel 8 being located on mounting plate 1, control Panel 8 is electrically connected battery 16, and driving mechanism includes fixed ring 3, and fixed ring 3 is connected and fixed with connecting rod 2 and mounting plate 1, 3 middle position of fixed ring is connected and fixed seat 33 by locating rod 31, and the middle position of the fixing seat 33 is equipped with adjusting Motor, the output end for adjusting motor are equipped with rotation axis 32, and 32 end of rotation axis is equipped with drive disk 37, drive disk 37 and fixed ring 3 Coaxial arrangement, 3 outboard array of fixed ring are distributed with several guide sleeves 34, are sliding combined with piston in the guide sleeve 34 Bar 35,35 outer end of piston rod are equipped with driving motor, and the output end of driving motor is equipped with driving wheel 5, the drive disk 37 There are three kinematic link 36, kinematic link 36 and drive disk 37 are rotatablely connected for outboard array distribution, 36 outer end of drive rod with Piston rod 35 is rotatablely connected, and when in use, drives drive disk 37 to rotate by adjusting motor, drive disk 37 can affect biography when rotating Dynamic connecting rod 36 rotates, and kinematic link 36 drives piston rod 35 to slide along guide sleeve 34, to adjust the straight of 5 position of idler wheel Diameter thus can facilitate device to be mounted on inside different-diameter natural gas line.
The cleaning modul being electrically connected with control panel 8 is additionally provided on the mounting plate 1, cleaning modul includes that rotation is arranged Swivel becket 11 on mounting plate 1 is equipped with rolling bearing 12, the 11 outside battle array of swivel becket between swivel becket 11 and mounting plate 1 Column distribution has several telescopic rods 13, and the output end of telescopic rod 13 is equipped with cleaning head 14, and the cleaning head 14 includes several It the hairbrush of array distribution and scrapes tablet, driven ring gear 15, the peace in driven 15 left side of ring gear is equipped on the outside of the swivel becket 11 Cleaning motor 9 is installed, the output end of cleaning motor 9 is equipped with driving gear 10, driving gear 10 and driven ring gear 15 in loading board 1 Intermeshing, under the drive of cleaning motor 9, driving gear 10 drives swivel becket 11 to rotate by driven ring gear 15, swivel becket 11 drive telescopic rod 13 and the cleaning head 14 positioned at its end to rotate, and to clear up inner wall of the pipe, can pass through here Telescopic rod is flexible,, can be by extending hairbrush respectively and to scrape tablet internal when cleaning to clear up different-diameter tube wall Wall is cleared up.
It is additionally provided with wireless module and GPS positioning module on the control panel 8, so as to the position of staff's remote control device It sets, is additionally provided on the mounting plate 1 convenient for the photographing module of observation inner wall of the pipe, photographing module includes camera 7, camera 7 Outside is equipped with protective cover 6.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. one kind is used for natural gas line cleaner, including mounting plate (1), mounting plate (1) left and right ends are symmetrically arranged with drive Motivation structure, driving mechanism are electrically connected the control panel (8) being located on mounting plate (1), which is characterized in that driving mechanism includes solid Determine ring (3), fixed ring (3) is connected and fixed with connecting rod (2) and mounting plate (1), and fixed ring (3) middle position passes through positioning Bar (31) is connected and fixed seat (33);
The middle position of the fixing seat (33) is equipped with adjusting motor, and the output end for adjusting motor is equipped with rotation axis (32), turns Moving axis (32) end is equipped with drive disk (37), and drive disk (37) and fixed ring (3) are coaxially disposed;
Several guide sleeves (34) are distributed in fixed ring (3) outboard array, are sliding combined with work in the guide sleeve (34) Stopper rod (35), piston rod (35) outer end are equipped with driving motor, and the output end of driving motor is equipped with driving wheel (5);
There are three kinematic link (36), kinematic link (36) and drive disk (37) to rotate for drive disk (37) the outboard array distribution Connection, drive rod (36) outer end and piston rod (35) are rotatablely connected;
The cleaning modul being electrically connected with control panel (8) is additionally provided on the mounting plate (1).
2. according to claim 1 be used for natural gas line cleaner, which is characterized in that the cleaning modul includes rotation The swivel becket (11) being set on mounting plate (1) is equipped with rolling bearing (12) between swivel becket (11) and mounting plate (1), described Several telescopic rods (13) are distributed in swivel becket (11) outboard array, and the output end of telescopic rod (13) is equipped with cleaning head (14), Driven ring gear (15) are equipped on the outside of the swivel becket (11), are equipped on the mounting plate (1) on the left of the driven ring gear (15) clear It manages motor (9), the output end of cleaning motor (9) is equipped with driving gear (10), and driving gear (10) and driven ring gear (15) are mutual Engagement.
3. according to claim 1 be used for natural gas line cleaner, which is characterized in that on the control panel (8) also Equipped with wireless module and GPS positioning module, it is additionally provided on the mounting plate (1) convenient for the photographing module of observation inner wall of the pipe, is taken the photograph As module includes camera (7), protective cover (6) are equipped on the outside of camera (7).
4. according to claim 1 be used for natural gas line cleaner, which is characterized in that the cleaning head (14) is if include It does the hairbrush of an array distribution and scrapes tablet.
5. according to claim 1 be used for natural gas line cleaner, which is characterized in that the control panel (8) is electrically It connects battery (16), battery (16) is equipped with USB charging jacks.
CN201811404943.5A 2018-11-23 2018-11-23 One kind being used for natural gas line cleaner Pending CN109622525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811404943.5A CN109622525A (en) 2018-11-23 2018-11-23 One kind being used for natural gas line cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811404943.5A CN109622525A (en) 2018-11-23 2018-11-23 One kind being used for natural gas line cleaner

Publications (1)

Publication Number Publication Date
CN109622525A true CN109622525A (en) 2019-04-16

Family

ID=66069147

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811404943.5A Pending CN109622525A (en) 2018-11-23 2018-11-23 One kind being used for natural gas line cleaner

Country Status (1)

Country Link
CN (1) CN109622525A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110499666A (en) * 2019-07-05 2019-11-26 张少龙 It is a kind of with the lamination mold for quickly cleaning function
CN111940431A (en) * 2020-08-13 2020-11-17 上海核工程研究设计院有限公司 Visual self-service walking pipeline inner wall cleaning device
CN112975703A (en) * 2021-03-04 2021-06-18 铜陵市宏飞科技有限公司 A inner wall rust cleaning grinding device for valve foundry goods processing
CN113245321A (en) * 2021-05-14 2021-08-13 中国计量大学 Self-adaptive passive cleaning robot for flammable and explosive dust pipeline
CN115070527A (en) * 2022-07-27 2022-09-20 江苏雅固标准件有限公司 Pipeline inner wall grinding device
CN115351018A (en) * 2022-08-04 2022-11-18 芜湖中燃城市燃气发展有限公司 Natural gas pipeline blockage clearing device and method
CN117960722A (en) * 2024-04-02 2024-05-03 太原国泰新材料有限公司 Pipeline rust remover in high pigment carbon black apparatus for producing

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004125038A (en) * 2002-10-01 2004-04-22 Hitachi Metals Ltd Carrying device for non-cut-and-cover construction method
CN101435521A (en) * 2007-11-16 2009-05-20 中国科学院沈阳自动化研究所 Self-adaptive pipeline moving mechanism
CN104259158A (en) * 2014-10-23 2015-01-07 福建省泉州市第七中学 Multifunctional pipeline robot
CN105003790A (en) * 2015-07-08 2015-10-28 北京工业大学 Multifunctional compound driving pipeline robot
CN105135151A (en) * 2015-10-15 2015-12-09 青岛大学 Crawler-type pipeline robot with active adaptation and self-adaptation functions
CN106623296A (en) * 2017-02-27 2017-05-10 山东科技大学 Novel telescopic pipeline cleaning robot
CN206632074U (en) * 2017-02-27 2017-11-14 山东科技大学 A kind of Novel stretchable pipeline cleaning machine people
CN107649470A (en) * 2017-09-19 2018-02-02 山东大学 A kind of pipeline cleaning robot and method for being suitable for different tube diameters change
CN207170441U (en) * 2017-08-28 2018-04-03 张金生 A kind of municipal pipeline cleaning plant
CN107983734A (en) * 2016-10-26 2018-05-04 湘潭宏远电子科技有限公司 A kind of pipeline cleaning machine people being applicable in different size pipeline
CN108160634A (en) * 2018-01-22 2018-06-15 西南科技大学 Pipeline cleaning robot

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004125038A (en) * 2002-10-01 2004-04-22 Hitachi Metals Ltd Carrying device for non-cut-and-cover construction method
CN101435521A (en) * 2007-11-16 2009-05-20 中国科学院沈阳自动化研究所 Self-adaptive pipeline moving mechanism
CN104259158A (en) * 2014-10-23 2015-01-07 福建省泉州市第七中学 Multifunctional pipeline robot
CN105003790A (en) * 2015-07-08 2015-10-28 北京工业大学 Multifunctional compound driving pipeline robot
CN105135151A (en) * 2015-10-15 2015-12-09 青岛大学 Crawler-type pipeline robot with active adaptation and self-adaptation functions
CN107983734A (en) * 2016-10-26 2018-05-04 湘潭宏远电子科技有限公司 A kind of pipeline cleaning machine people being applicable in different size pipeline
CN106623296A (en) * 2017-02-27 2017-05-10 山东科技大学 Novel telescopic pipeline cleaning robot
CN206632074U (en) * 2017-02-27 2017-11-14 山东科技大学 A kind of Novel stretchable pipeline cleaning machine people
CN207170441U (en) * 2017-08-28 2018-04-03 张金生 A kind of municipal pipeline cleaning plant
CN107649470A (en) * 2017-09-19 2018-02-02 山东大学 A kind of pipeline cleaning robot and method for being suitable for different tube diameters change
CN108160634A (en) * 2018-01-22 2018-06-15 西南科技大学 Pipeline cleaning robot

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110499666A (en) * 2019-07-05 2019-11-26 张少龙 It is a kind of with the lamination mold for quickly cleaning function
CN110499666B (en) * 2019-07-05 2021-08-17 山东英睿包装材料有限公司 Drench membrane mould with clear up function fast
CN111940431A (en) * 2020-08-13 2020-11-17 上海核工程研究设计院有限公司 Visual self-service walking pipeline inner wall cleaning device
CN112975703A (en) * 2021-03-04 2021-06-18 铜陵市宏飞科技有限公司 A inner wall rust cleaning grinding device for valve foundry goods processing
CN112975703B (en) * 2021-03-04 2022-02-25 铜陵市宏飞科技有限公司 A inner wall rust cleaning grinding device for valve foundry goods processing
CN113245321A (en) * 2021-05-14 2021-08-13 中国计量大学 Self-adaptive passive cleaning robot for flammable and explosive dust pipeline
CN115070527A (en) * 2022-07-27 2022-09-20 江苏雅固标准件有限公司 Pipeline inner wall grinding device
CN115351018A (en) * 2022-08-04 2022-11-18 芜湖中燃城市燃气发展有限公司 Natural gas pipeline blockage clearing device and method
CN115351018B (en) * 2022-08-04 2023-06-16 芜湖中燃城市燃气发展有限公司 Natural gas pipeline blockage removing device and method
CN117960722A (en) * 2024-04-02 2024-05-03 太原国泰新材料有限公司 Pipeline rust remover in high pigment carbon black apparatus for producing
CN117960722B (en) * 2024-04-02 2024-05-28 太原国泰新材料有限公司 Pipeline rust remover in high pigment carbon black apparatus for producing

Similar Documents

Publication Publication Date Title
CN109622525A (en) One kind being used for natural gas line cleaner
CN108413177B (en) self-adaptive pipeline dredging robot
CN209293467U (en) A kind of adjustable joint filling device for building
CN110241911A (en) A kind of drainage pipeline dredger
CN202949726U (en) Cane harvester
CN205217535U (en) Pipeline cleaning robot
CN110631863A (en) Remote-controllable multi-depth water sample collecting device
CN208976458U (en) A kind of bucket tool cleaning device for building
CN208362871U (en) A kind of pavement strip automatic clearing apparatus
CN114210670A (en) Cable duct bank dredging robot capable of adapting to pipeline shape
CN109592491A (en) Fiber optic cable wrap-up
CN211042804U (en) Remote-controllable multi-depth water sample collecting device
CN112750577A (en) Asphalt smearing device for high-voltage cable production
CN208795854U (en) A kind of pipeline internal inspection device
CN208056282U (en) Municipal pipeline internal cleaning vehicle
CN214093580U (en) Sludge pipeline monitoring robot
CN115912236A (en) On-line walking assembly of obstacle removing robot
CN210918892U (en) Portable drilling machine for light well point dewatering
CN205909735U (en) Heat exchange tube inner wall cleaning device
CN210944356U (en) Cable bundling device in vehicle-mounted display screen
CN221428431U (en) Special cable laying frame
CN207618752U (en) Slitter side silk collection device
CN207642061U (en) A kind of tube device of lightweight multifunctional pipe bending machine
CN216386430U (en) Underground water organic matter sampling device
CN206066155U (en) Grinding cutter sweep in a kind of pipe

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190416