CN112547719A - Automatic cleaning device for concrete discharging of pipe pile - Google Patents
Automatic cleaning device for concrete discharging of pipe pile Download PDFInfo
- Publication number
- CN112547719A CN112547719A CN202011321969.0A CN202011321969A CN112547719A CN 112547719 A CN112547719 A CN 112547719A CN 202011321969 A CN202011321969 A CN 202011321969A CN 112547719 A CN112547719 A CN 112547719A
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- CN
- China
- Prior art keywords
- pipe
- connecting rod
- cleaning device
- automatic cleaning
- block
- 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
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 title abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning 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
- B08B9/051—Cleaning 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses an automatic cleaning device for pipe pile concrete discharging, which relates to the field of cleaning equipment and comprises a discharging pipe, wherein a fixed block is arranged on the inner side of the discharging pipe, a connecting pipe penetrating into the fixed block is arranged at the bottom end of the fixed block, a water discharging pipe is arranged at the top end of the discharging pipe and positioned on the outer side of the connecting pipe, a spray head is arranged on one side of the water discharging pipe, a second connecting rod is arranged on the other side of the water discharging pipe, a first rotating ring is arranged at one end of the second connecting rod, a second lead screw penetrating to one end of the second connecting rod is arranged in the second connecting rod, and a second limiting block is arranged on the outer side of the second lead screw and. According to the invention, by arranging the fixing block, the positive and negative motors, the rotating motor and the storage battery, the device can be moved by taking the fixing block, and the device can be moved to the inner side of the blanking pipe through the rotating wheel by the operation of the positive and negative motors, so that the inner wall of the blanking pipe can be conveniently cleaned and the device is convenient to take.
Description
Technical Field
The invention relates to the field of cleaning equipment, in particular to an automatic cleaning device for concrete discharging of a pipe pile.
Background
With the development of reform and opening and economic construction, a large number of pretensioned prestressed concrete pipe piles are applied to railway systems, the fields of industry and civil construction, municipal administration, metallurgy, ports, highways and the like are expanded, in Yangtze river delta and Zhujiang delta area, due to the fact that geological conditions are suitable for the use characteristics of the pipe piles, the demand of the pipe piles is increased dramatically, so that a new industry is formed rapidly, according to incomplete statistics, more than 400 pipe pile production enterprises exist in China in the end of 2007, each type of pipe pile is produced by about 2.5 million meters, the output value reaches more than 300 million RMB, meanwhile, the annual output value of auxiliary products matched with the pipe pile industry is also near 250 million yuan, the pretensioned prestressed concrete pipe pile becomes a new industry rich in methane, and the pipe piles account for about 50% of the annual output value of cement product industry in China at present.
Need pour the concrete into the mould when preparation tubular pile, just can use the unloading pipe this moment and make the concrete get into the mould along the unloading pipe in, need clear up the unloading pipe after the use to this prevents that the concrete from attaching to use next time in the inside influence of unloading pipe.
The general cleaning device has a complex structure, a large size and extremely complex operation; simultaneously, the cleaning effect is poor, and the blanking pipes with different specifications cannot be cleaned.
Disclosure of Invention
The invention aims to: in order to solve the problem that the size is large, the operation is inconvenient, the cleaning effect is poor, the blanking pipes of different specifications cannot be cleaned, and the automatic cleaning device for the concrete blanking of the pipe pile is provided.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic cleaning device for pipe pile concrete blanking comprises a blanking pipe, wherein a fixed block is arranged on the inner side of the blanking pipe, a connecting pipe penetrating into the fixed block is arranged at the bottom end of the fixed block, a drain pipe is arranged at the top end of the blanking pipe and positioned on the outer side of the connecting pipe, a spray head is arranged on one side of the drain pipe, a second connecting rod is arranged on the other side of the drain pipe, a first rotating ring is arranged at one end of the second connecting rod, a second lead screw penetrating to one end of the second connecting rod is arranged inside the second connecting rod, a second limiting block is arranged on the outer side of the second lead screw and positioned inside the second connecting rod, a scraping plate is arranged at one end of the second lead screw, a first gear is arranged on the outer side of the drain pipe, a storage battery is arranged on one side of the connecting pipe inside the, the top that the output of rotating electrical machines is located the fixed block is provided with the gear No. two, the outside of fixed block is provided with the connecting rod No. one, and the inside of connecting rod is provided with the lead screw No. one, the inside that the outside of lead screw is located the connecting rod is provided with the stopper No. one, the outside that the one end of connecting rod is located the lead screw is provided with the change No. two, the one end of lead screw is fixed with the connecting block, and the bottom of connecting block is provided with places the storehouse, the inside of placing the storehouse is provided with positive and negative motor, positive and negative motor's output is connected with the worm that runs through to the connecting block inboard, one side that the inboard that is located the worm of connecting block is provided with the worm wheel.
Preferably, positive and negative motor, rotating electrical machines all with battery electric connection, positive and negative motor, rotating electrical machines all with external controller electric connection.
Preferably, the first rotating ring is rotatably connected with the second connecting rod through a bearing, and the second rotating ring is rotatably connected with the first connecting rod through a bearing.
Preferably, the inner sides of the first rotating ring and the second rotating ring are respectively provided with an internal thread matched with the second screw rod and the first screw rod, and the inner walls of the first connecting rod and the second connecting rod are respectively provided with a sliding groove matched with the first limiting block and the second limiting block.
Preferably, the drain pipe is rotatably connected with the connecting pipe through a bearing.
Preferably, the outer side of the runner is provided with a non-slip mat.
Preferably, the second gear is meshed with a latch on the outer side of the first gear.
Preferably, the number of the first connecting rods is two, and the two first connecting rods are symmetrically arranged along the vertical central axis of the fixing block.
Preferably, one end of the scraper is attached to the inner wall of the blanking pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging the connecting pipe, the scraper blade, the drain pipe, the spray head, the first gear, the second gear and the motor, an external water pipe can be connected with the connecting pipe, then the rotating motor operates, and the rotating motor can drive the first gear to rotate through the second gear so as to rotate the drain pipe, so that the inner wall of the discharging pipe can be washed and scraped at the same time, and the cleaning effect of the device is improved;
2. according to the invention, the first rotating ring, the first screw rod, the second rotating ring, the second screw rod, the first limiting block and the second limiting block are arranged, and the second screw rod and the first screw rod can move by rotating the first rotating ring and the second rotating ring, so that the scraper and the connecting block can move, and therefore, the diameter of the cleaning device can be adjusted, and the device can be fixed on the inner walls of blanking pipes with different specifications.
3. According to the invention, by arranging the fixing block, the positive and negative motors, the rotating motor and the storage battery, the device can be moved by taking the fixing block, and the device can be moved to the inner side of the blanking pipe through the rotating wheel by the operation of the positive and negative motors, so that the inner wall of the blanking pipe can be conveniently cleaned and the device is convenient to take.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of a first swivel of the present invention;
fig. 5 is a schematic view of the structure of the squeegee of the invention.
In the figure: 1. a discharging pipe; 2. a fixed block; 3. a connecting pipe; 4. a first limiting block; 5. a first connecting rod; 6. connecting blocks; 7. a first screw rod; 8. a first gear; 9. a second gear; 10. a spray head; 11. a drain pipe; 12. a second limiting block; 13. a second screw rod; 14. a second connecting rod; 15. a squeegee; 16. a first rotating ring; 17. a rotating electric machine; 18. a storage battery; 19. rotating the ring II; 20. a rotating wheel; 21. a worm gear; 22. a positive and negative motor; 23. placing a bin; 24. a worm.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
Referring to fig. 1-5, an automatic cleaning device for concrete discharging of a pipe pile comprises a discharging pipe 1, a fixed block 2 is arranged on the inner side of the discharging pipe 1, a connecting pipe 3 penetrating into the fixed block 2 is arranged at the bottom end of the fixed block 2, a discharging pipe 11 is arranged at the top end of the discharging pipe 1 and positioned on the outer side of the connecting pipe 3, a nozzle 10 is arranged on one side of the discharging pipe 11, a second connecting rod 14 is arranged on the other side of the discharging pipe 11, a first rotating ring 16 is arranged at one end of the second connecting rod 14, a second screw rod 13 penetrating to one end of the second connecting rod 14 is arranged inside the second connecting rod 14, a second limiting block 12 is arranged inside the second connecting rod 14 and positioned on the outer side of the second screw rod 13, a scraping plate 15 is arranged at one end of the second screw rod 13, a first gear 8 is arranged on the outer side of the discharging, and the inside of the fixed block 2 is provided with a rotating motor 17 above the storage battery 18, the output end of the rotating motor 17 is arranged above the fixed block 2 and is provided with a second gear 9, the outer side of the fixed block 2 is provided with a first connecting rod 5, a first screw rod 7 is arranged inside the first connecting rod 5, a first limiting block 4 is arranged on the outer side of the first screw rod 7 and inside the first connecting rod 5, a second rotating ring 19 is arranged on one end of the first connecting rod 5 and outside the first screw rod 7, a connecting block 6 is fixed on one end of the first screw rod 7, and the bottom of connecting block 6 is provided with places storehouse 23, and the inside of placing storehouse 23 is provided with positive and negative motor 22, and positive and negative motor 22's output is connected with the worm 24 that runs through to connecting block 6 inboard, and the inboard one side that is located worm 24 of connecting block 6 is provided with worm wheel 21, and the one end of worm wheel 21 is provided with runner 20.
Please refer to fig. 2 and 3, the positive and negative motor 22 and the rotating motor 17 are electrically connected to the battery 18, and the positive and negative motor 22 and the rotating motor 17 are electrically connected to an external controller, so as to control the operations of the positive and negative motor 22 and the rotating motor 17 through the external controller.
Please refer to fig. 2 and 3, the first rotary ring 16 is rotatably connected to the second connecting rod 14 through a bearing, and the second rotary ring 19 is rotatably connected to the first connecting rod 5 through a bearing, so as to facilitate the rotation of the first rotary ring 16 and the second rotary ring 19.
Please refer to fig. 3 and 4, inner threads matching with the second lead screw 13 and the first lead screw 7 are respectively disposed on inner sides of the first rotary ring 16 and the second rotary ring 19, and sliding grooves matching with the first limiting block 4 and the second limiting block 12 are respectively disposed on inner walls of the first connecting rod 5 and the second connecting rod 14, so that the second lead screw 13 and the first lead screw 7 can move when the first rotary ring 16 and the second rotary ring 19 rotate.
Please refer to fig. 2, the drain pipe 11 is rotatably connected to the connecting pipe 3 through a bearing, so that the drain pipe 11 can rotate.
Please refer to fig. 3, the outer side of the rotating wheel 20 is provided with a non-slip mat, which is convenient for increasing the friction between the inner wall of the blanking tube 1 and the rotating wheel 20.
Please refer to fig. 2, the second gear 9 is engaged with the latch on the outer side of the first gear 8, so that the second gear 9 drives the first gear 8 to rotate.
Please refer to fig. 2, the number of the first connecting rods 5 is two, and the two first connecting rods 5 are symmetrically arranged along the vertical central axis of the fixing block 2, so as to support the fixing block 2.
Please refer to fig. 2 and 5, one end of the scraper 15 is attached to the inner wall of the discharging pipe 1, so as to facilitate scraping the concrete attached to the inner wall of the discharging pipe 1.
The working principle is as follows: after concrete is poured, the fixing block 2 can be placed below the discharging pipe 1, then the first rotary ring 16 is rotated, the first rotary ring 16 can move the second screw rod 13 limited by the second limiting block 12 when rotating, the second screw rod 13 can push the scraper 15 to move, so that the scraper 15 can be in contact with the inner wall of the discharging pipe 1, then the second rotary ring 19 is rotated, the first screw rod 7 limited by the first limiting block 4 can move when the second rotary ring 19 rotates, the first screw rod 7 can push the connecting block 6 to move when moving, so that the rotating wheel 20 on the inner side of the connecting block 6 can be in contact with the inner wall of the discharging pipe 1, the fixing block 2 is fixed through the first connecting rod 5, the connecting block 6 and the first screw rod 7, the fixing block 2 is fixed on the inner side of the discharging pipe 1, and then an external water pipe is connected with the bottom end of the connecting pipe 3, so that water flows through the connecting pipe 3 to enter the inside of the drain pipe 11, then the rotating motor 17 and the positive and negative motor 22 are operated through an external controller, the rotating motor 17 drives the second gear 9 to rotate when operating, the second gear 9 drives the drain pipe 11 to rotate through the first gear 8 when rotating, the drain pipe 11 sprays water on the inner wall of the blanking pipe 1 through the spray head 10 when rotating, meanwhile, the drain pipe 11 drives the second connecting rod 14 to rotate, the scraper 15 can be rotated when the second connecting rod 14 rotates, thereby concrete attached to the inner wall of the blanking pipe 1 can be scraped, the positive and negative motor 22 drives the worm 24 to rotate when operating, the worm 24 drives the rotating wheel 20 to rotate through the worm wheel 21 when rotating, and therefore, the fixed block 2 can move inside the blanking pipe 1 through the rotating wheel 20, thereby make scraper blade 15 scrape the inner wall of unloading pipe 1 and rub, later accessible external controller makes positive and negative motor 22 reverse, and worm 24 drives runner 20 through worm wheel 21 and reverses, alright shift out fixed block 2 unloading pipe 1 from this to this reaches the effect of clearing up the inner wall of unloading pipe 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an automatic cleaning device of tubular pile concrete unloading, includes unloading pipe (1), its characterized in that: the inner side of the blanking pipe (1) is provided with a fixed block (2), the bottom end of the fixed block (2) is provided with a connecting pipe (3) penetrating into the fixed block (2), the top end of the blanking pipe (1) is positioned outside the connecting pipe (3) and is provided with a drain pipe (11), one side of the drain pipe (11) is provided with a spray head (10), the other side of the drain pipe (11) is provided with a second connecting rod (14), one end of the second connecting rod (14) is provided with a first rotating ring (16), a second screw rod (13) penetrating into one end of the second connecting rod (14) is arranged inside the second connecting rod (14), a second limiting block (12) is arranged inside the second connecting rod (14) on the outer side of the second screw rod (13), one end of the second screw rod (13) is provided with a scraper (15), a first gear (8) is arranged on the outer side of the drain pipe (11, a storage battery (18) is arranged on one side, located on the connecting pipe (3), of the inside of the fixed block (2), a rotating motor (17) is arranged on the top, located on the storage battery (18), of the inside of the fixed block (2), an output end of the rotating motor (17) is arranged on the top of the fixed block (2), a second gear (9) is arranged, a first connecting rod (5) is arranged on the outer side of the fixed block (2), a first lead screw (7) is arranged on the inner side of the first connecting rod (5), a first limiting block (4) is arranged on the outer side of the first lead screw (7), a second rotating ring (19) is arranged on one end of the first connecting rod (5) located on the outer side of the first lead screw (7), a connecting block (6) is fixed at one end of the first lead screw (7), and a placing bin (23) is arranged at the bottom end of the connecting, place the inside in storehouse (23) and be provided with positive and negative motor (22), the output of positive and negative motor (22) is connected with and runs through to connecting block (6) inboard worm (24), one side that the inboard of connecting block (6) is located worm (24) is provided with worm wheel (21), and the one end of worm wheel (21) is provided with runner (20).
2. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the positive and negative motor (22) and the rotating motor (17) are both electrically connected with the storage battery (18), and the positive and negative motor (22) and the rotating motor (17) are both electrically connected with an external controller.
3. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the first rotating ring (16) is rotatably connected with the second connecting rod (14) through a bearing, and the second rotating ring (19) is rotatably connected with the first connecting rod (5) through a bearing.
4. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the inner sides of the first rotating ring (16) and the second rotating ring (19) are respectively provided with internal threads matched with the second screw rod (13) and the first screw rod (7), and the inner walls of the first connecting rod (5) and the second connecting rod (14) are respectively provided with sliding grooves matched with the first limiting block (4) and the second limiting block (12).
5. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the drain pipe (11) is rotatably connected with the connecting pipe (3) through a bearing.
6. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: and the outer side of the rotating wheel (20) is provided with a non-slip mat.
7. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the second gear (9) is meshed with the latch on the outer side of the first gear (8).
8. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: the number of the first connecting rods (5) is two, and the first connecting rods (5) are symmetrically arranged along the vertical central axis of the fixing block (2).
9. The automatic cleaning device of tubular pile concrete unloading of claim 1, characterized in that: one end of the scraper (15) is attached to the inner wall of the blanking pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321969.0A CN112547719A (en) | 2020-11-23 | 2020-11-23 | Automatic cleaning device for concrete discharging of pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321969.0A CN112547719A (en) | 2020-11-23 | 2020-11-23 | Automatic cleaning device for concrete discharging of pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112547719A true CN112547719A (en) | 2021-03-26 |
Family
ID=75044860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011321969.0A Pending CN112547719A (en) | 2020-11-23 | 2020-11-23 | Automatic cleaning device for concrete discharging of pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112547719A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889734A (en) * | 2018-07-11 | 2018-11-27 | 协建（江苏）智能装备有限公司 | A kind of petrochemical industry tube cleaning arrangement |
| CN109351725A (en) * | 2018-11-12 | 2019-02-19 | 东莞理工学院 | Pipeline cleaning robot |
| CN209792188U (en) * | 2019-02-27 | 2019-12-17 | 中交天航南方交通建设有限公司 | Hydraulic engineering pipeline dredging device |
| CN210497514U (en) * | 2019-08-01 | 2020-05-12 | 中油中泰煤层气利用吉州有限责任公司 | Diameter-adjustable coal bed gas pipeline cleaning device |
| CN210754196U (en) * | 2019-10-23 | 2020-06-16 | 高平 | Pipeline cleaning device for petrochemical |
-
2020
- 2020-11-23 CN CN202011321969.0A patent/CN112547719A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889734A (en) * | 2018-07-11 | 2018-11-27 | 协建（江苏）智能装备有限公司 | A kind of petrochemical industry tube cleaning arrangement |
| CN109351725A (en) * | 2018-11-12 | 2019-02-19 | 东莞理工学院 | Pipeline cleaning robot |
| CN209792188U (en) * | 2019-02-27 | 2019-12-17 | 中交天航南方交通建设有限公司 | Hydraulic engineering pipeline dredging device |
| CN210497514U (en) * | 2019-08-01 | 2020-05-12 | 中油中泰煤层气利用吉州有限责任公司 | Diameter-adjustable coal bed gas pipeline cleaning device |
| CN210754196U (en) * | 2019-10-23 | 2020-06-16 | 高平 | Pipeline cleaning device for petrochemical |
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Application publication date: 20210326 |
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| RJ01 | Rejection of invention patent application after publication |