CN111558585A - Be used for abluent robotic arm of bending pipeline - Google Patents
Be used for abluent robotic arm of bending pipeline Download PDFInfo
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- CN111558585A CN111558585A CN202010469426.7A CN202010469426A CN111558585A CN 111558585 A CN111558585 A CN 111558585A CN 202010469426 A CN202010469426 A CN 202010469426A CN 111558585 A CN111558585 A CN 111558585A
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- arm
- cleaning
- wall
- fixedly connected
- fixing
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- 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
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a machine arm for cleaning a bent pipeline, which comprises an arm head, an arm tail and a plurality of connecting blocks, wherein the connecting blocks are arranged between the arm head and the arm tail at equal intervals, two fixing plates are symmetrically and fixedly connected to one side of the arm head and one side of the connecting blocks, rotating blocks are fixedly connected to one side of the arm tail and the other sides of the connecting blocks, rotating pieces are rotatably and alternately connected between the rotating blocks and the two adjacent connecting blocks, a driving motor is fixedly embedded in the other side of the arm head, a hairbrush ring is sleeved on the outer wall of each circular plate, and a holding mechanism is arranged on the other side of the arm tail. The invention utilizes an arm head, an arm tail, a connecting block, a fixing plate and a rotating block among a plurality of connecting blocks. The setting of rotating the piece, the setting of cooperation driving motor, circular slab and brush ring again can be according to the inner wall department of buckling of bending pipeline and crooked to make the inner wall to the bending pipeline that the brush ring can be comprehensive wash, improved the cleaning efficiency and the quality to the bending pipeline.
Description
Technical Field
The invention relates to the field of cleaning of bent pipelines, in particular to a robot arm for cleaning the bent pipelines.
Background
Piping refers to a device for transporting a gas, liquid or fluid with solid particles connected by pipes, pipe couplings, valves, etc. Generally, after being pressurized by a blower, a compressor, a pump, a boiler and the like, the fluid flows from a high-pressure part to a low-pressure part of a pipeline, and can also be conveyed by utilizing the pressure or gravity of the fluid. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations.
At present, in the production and manufacturing process of some bent pipelines, especially in the pipeline production of some water supply and drainage pipelines, in order to ensure the cleanness of the inner cavity of a water supply and drainage pipeline, the bent pipelines after production is required to be cleaned, but the inner walls of the bent pipelines can only be cleaned linearly by the existing cleaning equipment, so that the bent parts of the inner walls of the bent pipelines cannot be cleaned well, the bent positions of the bent pipelines are easily cleaned not in place, and the cleaning quality of the bent pipelines is reduced.
Disclosure of Invention
The present invention is directed to a robot arm for cleaning a curved pipe, which solves the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a be used for abluent robotic arm of curved pipeline, includes arm head, arm tail and a plurality of connecting block, and is a plurality of the equidistant setting of connecting block sets up between arm head and arm tail, two fixed plates of the equal symmetry fixedly connected with in one side of arm head and a plurality of connecting block, the equal fixedly connected with turning block of opposite side of one side of arm tail and a plurality of connecting block, it alternates to be connected with the rotation piece to rotate between turning block and two adjacent connecting blocks, the fixed embedding of opposite side of arm head is equipped with driving motor, driving motor's output shaft is through pivot fixedly connected with circular slab, the outer wall cover of circular slab is equipped with the brush ring, the opposite side of arm tail is provided with the mechanism of gripping.
Preferably, the motor groove has been seted up to the opposite side of arm head, the fixed slot has been seted up to the avris symmetry of motor groove top and bottom, the driving motor activity alternates and sets up in the inner chamber in motor groove, just the equal fixedly connected with fixed block of avris of driving motor top and bottom, two one side of fixed block alternates and is connected with fastening bolt, just one side inner wall screw thread that fastening bolt's one end runs through fixed block and fixed slot alternates and is connected.
Preferably, the middle part of the outer wall of the circular plate is fixedly sleeved with a clamping ring, the middle part of the inner wall of the brush ring is provided with an annular clamping groove, and the clamping ring is fixedly clamped with the annular clamping groove.
Preferably, it is a plurality of one side of connecting block just is located the fixedly connected with limiting plate of position department between two adjacent fixed plates, the top fixed connection elasticity protection of limiting plate fills up, just the top of elasticity protection pad sets up with the bottom laminating of turning block.
Preferably, the middle part of the connecting block is sleeved with an annular fixing plate, and the outer wall of the annular fixing plate is fixedly connected with cleaning sponge.
Preferably, the inner walls of the annular fixing plates are fixedly connected with four fixing rods in a cross array mode, and one ends of the four fixing rods are fixedly connected with the outer wall of the connecting block respectively.
Preferably, the holding mechanism comprises a holding rod, an anti-slip sleeve is fixedly sleeved at one end of the holding rod and made of silica gel, and a plurality of anti-slip convex particles are arranged on the outer wall of the anti-slip sleeve.
Preferably, the other end of the holding rod is connected with a first internal thread sleeve in a threaded penetrating manner through a thread groove, and the first internal thread sleeve is fixedly embedded in the middle of the other side of the arm tail.
Preferably, the rotating part comprises two end covers, a second internal thread sleeve and a threaded rod, the two end covers are fixedly connected with one ends of the second internal thread sleeve and the threaded rod respectively, the second internal thread sleeve is movably and alternately connected with through holes formed in the middle of the two fixed plates and the rotating block, and the threaded rod is in threaded and alternate connection with the inner wall of the second internal thread sleeve.
Preferably, the cleaning sponge is circular ring-shaped, and the diameter of the cleaning sponge is the same as that of the brush ring.
The invention has the technical effects and advantages that:
(1) the invention utilizes an arm head, an arm tail, a connecting block, a fixing plate and a rotating block among a plurality of connecting blocks. The arrangement of the rotating part is matched with the arrangement of the driving motor, the circular plate and the brush ring, and the bending can be carried out according to the bent part of the inner wall of the bent pipeline, so that the brush ring can comprehensively clean the inner wall of the bent pipeline, and the cleaning efficiency and quality of the bent pipeline are improved;
(2) according to the invention, by means of the arrangement of the annular fixing plate, the cleaning sponge and the fixing rod, when the plurality of connecting blocks move in the inner cavity of the bent pipeline, the inner wall of the bent pipeline is automatically washed for the second time, so that the cleaning efficiency and quality of the bent pipeline are further improved;
(3) the invention utilizes the arrangement of the limiting plate and the elastic protective pad to play a role of limiting and supporting between two adjacent connecting blocks, so that the plurality of connecting blocks can be kept straight, the whole machine arm can be conveniently kept to be inserted into the inner cavity of the bent pipeline in a rod shape, and the use convenience of the machine arm is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front sectional structural schematic view of the connecting block of the present invention.
Fig. 3 is a schematic view of the enlarged structure at a point a in fig. 1 according to the present invention.
Fig. 4 is a front sectional structural schematic view of the connecting block of the present invention.
Fig. 5 is a front sectional structural view of the connecting block of the present invention.
Fig. 6 is a front sectional structural view of the connecting block of the present invention.
In the figure: 1. an arm head; 2. an arm tail; 3. connecting blocks; 4. a fixing plate; 5. rotating the block; 6. a rotating member; 7. a drive motor; 8. a circular plate; 9. a brush ring; 10. a motor slot; 11. fixing grooves; 12. a fixed block; 13. fastening a bolt; 14. a snap ring; 15. an annular neck; 16. a limiting plate; 17. an elastic protection pad; 18. an annular fixed plate; 19. cleaning the sponge; 20. fixing the rod; 21. a first internally threaded sleeve; 22. a holding rod; 23. an anti-slip sleeve; 24. an end cap; 25. a second internally threaded sleeve; 26. a threaded rod.
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.
The invention provides a machine arm for cleaning a bent pipeline as shown in figures 1-6, which comprises an arm head 1, an arm tail 2 and a plurality of connecting blocks 3, wherein the plurality of connecting blocks 3 are arranged between the arm head 1 and the arm tail 2 at equal intervals, the arm head 1, the arm tail 2 and the plurality of connecting blocks 3 jointly form a main body of the machine arm, the number of the connecting blocks 3 is adjusted according to the length of the specific bent pipeline, two fixing plates 4 are symmetrically and fixedly connected to one side of the arm head 1 and one side of the plurality of connecting blocks 3, rotating blocks 5 are fixedly connected to one side of the arm tail 2 and the other sides of the plurality of connecting blocks 3, rotating pieces 6 are rotatably and alternately connected between the rotating blocks 5 and two adjacent connecting blocks 3, and the fixing plates 4, the rotating blocks 5 and the rotating pieces 6 are combined for use, so that a rotating connection can be formed between two adjacent connecting blocks 3, between the connecting blocks 3 and the arm head 1 and between the connecting blocks, thereby enabling the arm head 1, the connecting block 3 and the arm tail 3 to rotate, enabling the whole machine arm to bend according to the inner wall of the bent pipeline to turn when moving, thereby realizing the one-time cleaning of the inner wall of the bent pipeline by the mechanical arm, a position limiting plate 16 is fixedly connected at one side of the plurality of connecting blocks 3 and between the two adjacent fixing plates 4, the top end of the limiting plate 16 is fixedly connected with an elastic protective pad 17, the top end of the elastic protection pad 17 is attached to the bottom end of the rotating block 5, the limiting plate 16 and the elastic protection pad 17 are arranged to play a role of limiting and supporting the fixed plate 4 and the rotating block 5 among the plurality of connecting blocks 3, the arm head 1 and the arm tail 2, the rotating block 5 and the fixing plate 4 are kept fixed in a horizontal position, so that the whole machine arm can keep a support rod shape to extend into the inner cavity of the bent pipeline;
a driving motor 7 is fixedly embedded on the other side of the arm head 1, an output shaft of the driving motor 7 is fixedly connected with a circular plate 8 through a rotating shaft, the driving motor 7 is utilized to drive the circular plate 8 to rotate, so as to drive a cleaning mechanism installed on the outer wall of the circular plate 8 to perform friction cleaning on the inner wall of the bent pipeline, a motor groove 10 is formed in the other side of the arm head 1, fixing grooves 11 are symmetrically formed in the side edges of the top end and the bottom end of the motor groove 10, the driving motor 7 is movably inserted in an inner cavity of the motor groove 10, fixing blocks 12 are fixedly connected to the side edges of the top end and the bottom end of the driving motor 7, fastening bolts 13 are inserted and connected to one side of the two fixing blocks 12, one ends of the fastening bolts 13 penetrate through the fixing blocks 12 and are connected with the inner wall of one side of the fixing, fastening bolts 13 penetrate through the fixing blocks 12 and are inserted into the inner wall threads of the fixing grooves 11, so that the driving motor 7 is fixed in the inner cavity of the motor groove 10, and the convenience of mounting and dismounting the driving motor 7 is improved;
the outer wall of the circular plate 8 is sleeved with a brush ring 9, the outer wall of the brush ring 9 is provided with soft brushes in an annular array, the brush ring 9 is made of elastic rubber and has certain elastic deformation capacity, when the circular plate 8 is driven to rotate by the driving motor 7, the brush ring 9 rotates along with the rotation, so that the soft brushes on the brush ring 9 are in contact friction with the inner wall of the bent pipeline, the inner wall of the bent pipeline is cleaned, the middle part of the outer wall of the circular plate 8 is fixedly sleeved with a clamping ring 14, the middle part of the inner wall of the brush ring 9 is provided with an annular clamping groove 15, the clamping ring 14 is fixedly clamped with the annular clamping groove 15, the clamping ring 14 and the annular clamping groove 15 are matched, an operator can conveniently and quickly disassemble and assemble the brush ring 9 from the circular plate 8, so as to conveniently replace and clean the brush ring 9, the other side of the arm tail 2 is provided with a holding mechanism, the holding mechanism comprises a holding rod 22, the anti-slip sleeve 23 is made of silica gel, and the outer wall of the anti-slip sleeve 23 is provided with a plurality of anti-slip convex particles, so that an operator can hold the anti-slip sleeve 23 on the holding rod 22 conveniently, the use comfort is improved, and meanwhile, the holding mechanism can be used by using an electric telescopic rod, so that manual pushing is not needed, and the use convenience and efficiency are improved;
the middle parts of the connecting blocks 3 are all sleeved with annular fixing plates 18, the outer walls of the annular fixing plates 18 are all fixedly connected with cleaning sponges 19, the cleaning sponges 19 are annular, the diameter of the cleaning sponges 19 is the same as that of the hairbrush ring 9, when the connecting blocks 3 extend into the inner cavity of the bent pipeline, the cleaning sponges 19 can perform secondary cleaning on the inner wall of the pipeline, the cleaning effect is improved, the inner walls of the annular fixing plates 18 are fixedly connected with four fixing rods 20 in a cross-shaped array mode, and one ends of the four fixing rods 20 are respectively fixedly connected with the outer walls of the connecting blocks 3 to play a role in supporting and fixing;
the other end of the holding rod 22 is in threaded insertion connection with a first internal thread sleeve 21 through a thread groove formed in the other end, the first internal thread sleeve 21 is fixedly embedded in the middle of the other side of the arm tail 2, and the holding rod 22 can be conveniently disassembled and assembled through rotation due to the arrangement of the first internal thread sleeve 21, so that the holding rod 22 can be conveniently replaced;
rotate piece 6 by two end covers 24, second internal thread sleeve pipe 25 and threaded rod 26 are constituteed, two end covers 24 respectively with the one end fixed connection of second internal thread sleeve pipe 25 and threaded rod 26, second internal thread sleeve pipe 25 and the through-hole activity interlude connection of seting up in two fixed plates 4 and turning block 5 middle parts, threaded rod 26 is connected with the inner wall screw thread interlude of second internal thread sleeve pipe 25, through inserting threaded rod 26 second internal thread sleeve pipe 25 inner chamber and clockwise rotation, thereby make second internal thread sleeve pipe 25 and threaded rod 26 keep relatively fixed, it is spacing to cooperate two end covers 24 again, can keep the rotation between fixed plate 4 and the turning block 5 to be connected.
The working principle of the invention is as follows: when cleaning the bent pipeline, an operator manually holds the anti-skid sleeve 23 on the holding rod 22, the limiting plates 16 and the elastic protection pads 17 are used for limiting and supporting the two adjacent connecting blocks 3 and the arm head 1 and the arm tail 2, so that the arm head 1, the arm tail 2 and the connecting blocks 3 can keep a rod shape, then the arm head 1 is inserted into the inner cavity of the bent pipeline, the external switch of the driving motor 7 is simultaneously opened, the driving motor 7 drives the circular plate 8 and the brush ring 9 to rotate, the brush ring 9 drives the soft brush on the outer wall to contact and rub with the inner wall of the bent pipeline when rotating, thereby realizing the cleaning of the inner wall of the pipeline, when the inner cavity of the pipeline is bent, the rotating block 5 on one side of the connecting blocks 3 rotates relative to the two fixing plates 4 due to the manual thrust action of an external operator, thereby when the arm head 1 is inserted into the bent pipeline, the plurality of connecting blocks 3 rotate to ensure that the arm head 1 can smoothly turn along the inner wall of the bent pipeline, so that the brush ring 9 can clean all over the inner wall of the bent pipeline.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a be used for abluent robotic arm of bending shape pipeline, includes arm head (1), arm tail (2) and a plurality of connecting block (3), its characterized in that, a plurality of connecting block (3) are equidistant to be set up between arm head (1) and arm tail (2), one side of arm head (1) and one side of a plurality of connecting block (3) equal symmetry fixedly connected with two fixed plates (4), one side of arm tail (2) and the equal fixedly connected with turning block (5) of the opposite side of a plurality of connecting block (3), it has rotating piece (6) to rotate to alternate between turning block (5) and two adjacent connecting block (3), the fixed embedding of the opposite side of arm head (1) is equipped with driving motor (7), the output shaft of driving motor (7) passes through pivot fixedly connected with circular slab (8), the outer wall cover of circular slab (8) is equipped with brush ring (9), and a holding mechanism is arranged on the other side of the arm tail (2).
2. The mechanical arm for cleaning the bent pipeline according to claim 1, wherein a motor groove (10) is formed in the other side of the arm head (1), fixing grooves (11) are symmetrically formed in the side edges of the top end and the bottom end of the motor groove (10), the driving motor (7) is movably and alternately arranged in an inner cavity of the motor groove (10), fixing blocks (12) are fixedly connected to the side edges of the top end and the bottom end of the driving motor (7), fastening bolts (13) are alternately connected to one side of each fixing block (12), and one ends of the fastening bolts (13) penetrate through the fixing blocks (12) and are connected with the inner wall of one side of each fixing groove (11) in a threaded manner.
3. The robot arm for cleaning the bent pipeline as claimed in claim 1, wherein a snap ring (14) is fixedly sleeved in the middle of the outer wall of the circular plate (8), an annular clamping groove (15) is formed in the middle of the inner wall of the brush ring (9), and the snap ring (14) is fixedly clamped with the annular clamping groove (15).
4. The robot arm for cleaning the bent pipeline according to claim 1, wherein a limiting plate (16) is fixedly connected to one side of the plurality of connecting blocks (3) and is located between two adjacent fixing plates (4), an elastic protection pad (17) is fixedly connected to the top end of the limiting plate (16), and the top end of the elastic protection pad (17) is attached to the bottom end of the rotating block (5).
5. The robot arm for cleaning the bent pipeline according to claim 1, wherein the middle parts of a plurality of connecting blocks (3) are sleeved with annular fixing plates (18), and the outer walls of the annular fixing plates (18) are fixedly connected with cleaning sponges (19).
6. The robot arm for cleaning curved pipelines according to claim 5, wherein four fixing rods (20) are fixedly connected to the inner wall of the plurality of annular fixing plates (18) in a cross-shaped array, and one end of each of the four fixing rods (20) is fixedly connected to the outer wall of the connecting block (3).
7. The robot arm for cleaning the curved pipeline according to claim 1, wherein the holding mechanism comprises a holding rod (22), an anti-slip sleeve (23) is fixedly sleeved at one end of the holding rod (22), the anti-slip sleeve (23) is made of silica gel, and a plurality of anti-slip convex particles are distributed on the outer wall of the anti-slip sleeve (23).
8. The robot arm for cleaning the bent pipeline as claimed in claim 7, wherein a first internal thread sleeve (21) is inserted and connected to the other end of the holding rod (22) through a thread groove and a thread, and the first internal thread sleeve (21) is fixedly embedded in the middle of the other side of the arm tail (2).
9. The robot arm for cleaning the bent pipeline according to claim 1, wherein the rotating member (6) is composed of two end caps (24), a second internal thread bushing (25) and a threaded rod (26), the two end caps (24) are respectively fixedly connected with one ends of the second internal thread bushing (25) and the threaded rod (26), the second internal thread bushing (25) is movably and alternately connected with through holes formed in the middle portions of the two fixing plates (4) and the rotating block (5), and the threaded rod (26) is in threaded and alternate connection with the inner wall of the second internal thread bushing (25).
10. A robot arm for washing curved ducts according to claim 5, characterized in that said cleaning sponge (19) is circular and the diameter of said cleaning sponge (19) is the same as the diameter of the brush ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010469426.7A CN111558585A (en) | 2020-05-28 | 2020-05-28 | Be used for abluent robotic arm of bending pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010469426.7A CN111558585A (en) | 2020-05-28 | 2020-05-28 | Be used for abluent robotic arm of bending pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111558585A true CN111558585A (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010469426.7A Pending CN111558585A (en) | 2020-05-28 | 2020-05-28 | Be used for abluent robotic arm of bending pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN111558585A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718347A (en) * | 2020-12-22 | 2021-04-30 | 肖志坚 | Metal guardrail machining equipment |
| CN112827963A (en) * | 2020-12-31 | 2021-05-25 | 昌群精细工业（宜昌）有限公司 | A pipeline cleaning device for powder production |
| CN117226077A (en) * | 2023-11-15 | 2023-12-15 | 江苏九新特钢制品有限公司 | Radiant tube elbow casting drawing of patterns aftertreatment equipment |
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| US6490748B1 (en) * | 2000-06-12 | 2002-12-10 | Kemtech International Pty, Ltd. | Flexible drill rod |
| CN106041652A (en) * | 2016-07-14 | 2016-10-26 | 泉州市科茂利通智能科技有限公司 | Pipe inner wall polishing robot based on parallel mechanism |
| CN208853397U (en) * | 2018-09-12 | 2019-05-14 | 西南石油大学 | It is a kind of can free bend oil pipeline inner-wall cleaning device |
| CN210358401U (en) * | 2019-04-13 | 2020-04-21 | 山东雪山机电设备有限公司 | Central air conditioning air pipe cleaning device |
| CN210396035U (en) * | 2019-08-06 | 2020-04-24 | 漳州创恒装饰工程有限公司 | Roller brush for decoration |
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2020
- 2020-05-28 CN CN202010469426.7A patent/CN111558585A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6490748B1 (en) * | 2000-06-12 | 2002-12-10 | Kemtech International Pty, Ltd. | Flexible drill rod |
| CN106041652A (en) * | 2016-07-14 | 2016-10-26 | 泉州市科茂利通智能科技有限公司 | Pipe inner wall polishing robot based on parallel mechanism |
| CN208853397U (en) * | 2018-09-12 | 2019-05-14 | 西南石油大学 | It is a kind of can free bend oil pipeline inner-wall cleaning device |
| CN210358401U (en) * | 2019-04-13 | 2020-04-21 | 山东雪山机电设备有限公司 | Central air conditioning air pipe cleaning device |
| CN210396035U (en) * | 2019-08-06 | 2020-04-24 | 漳州创恒装饰工程有限公司 | Roller brush for decoration |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718347A (en) * | 2020-12-22 | 2021-04-30 | 肖志坚 | Metal guardrail machining equipment |
| CN112718347B (en) * | 2020-12-22 | 2022-01-21 | 山东中嘉装备制造有限公司 | Metal guardrail machining equipment |
| CN112827963A (en) * | 2020-12-31 | 2021-05-25 | 昌群精细工业（宜昌）有限公司 | A pipeline cleaning device for powder production |
| CN117226077A (en) * | 2023-11-15 | 2023-12-15 | 江苏九新特钢制品有限公司 | Radiant tube elbow casting drawing of patterns aftertreatment equipment |
| CN117226077B (en) * | 2023-11-15 | 2024-02-27 | 江苏九新特钢制品有限公司 | Radiant tube elbow casting drawing of patterns aftertreatment equipment |
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Application publication date: 20200821 |