CN108890492B - Square steel pipe rust cleaning device that polishes for building engineering - Google Patents
Square steel pipe rust cleaning device that polishes for building engineering Download PDFInfo
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- CN108890492B CN108890492B CN201810521820.3A CN201810521820A CN108890492B CN 108890492 B CN108890492 B CN 108890492B CN 201810521820 A CN201810521820 A CN 201810521820A CN 108890492 B CN108890492 B CN 108890492B
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- polishing
- steel pipe
- square steel
- rod
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/08—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing combined with fluid systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a polishing and rust removing device for a square steel pipe for construction engineering, which comprises a base plate, wherein support rod frames are arranged on two sides of the upper end surface of the base plate, a movable clamping plate is connected with the outer side wall of a rotating cylinder in a sliding manner, a side end plate on the same side is connected with the movable clamping plate through a clamping spring, lower end shaft sections of two lifting screw rods are connected with a clamping motor arranged on the upper end surface of the base plate through a transmission mechanism, a hydraulic cylinder and a support vertical rod are further arranged on the upper end surface of the base plate, a support hydraulic rod is arranged at the upper end of the hydraulic cylinder, polishing mechanisms are arranged at the upper ends of the support hydraulic rod and the support vertical rod, a connecting slide block is arranged at the lower end of the support vertical rod. The steel pipe polishing machine is simple in structure, capable of avoiding manual hand-held polishing machines from moving along the side wall of a steel pipe for polishing, high in polishing efficiency, convenient and fast to use, small in manual labor force, applicable to polishing of longer steel pipes and high in practicability.
Description
Technical Field
The invention relates to the technical field of steel pipe polishing, in particular to a polishing and rust removing device for a square steel pipe for constructional engineering.
Background
After the steel pipe is formed, in order to improve the production and processing quality of the steel pipe, ensure the service performance of the steel pipe and beautify the appearance of the steel pipe, the steel pipe needs to be polished to remove burrs, iron rust and the like on the surface of the steel pipe. The polishing equipment of current steel pipe usually includes processing platform and grinding wheel, and the during operation is fixed the steel pipe on the processing platform, and through the rotation of grinding wheel, the outer circumference that utilizes grinding wheel and steel pipe surface friction and the rust cleaning of polishing to the steel pipe, but this kind of mode is applicable to the steel pipe of cylindrical structure, and square steel pipe is generally to remove along its pole wall direction through the handheld polisher of manual work, polishes repeatedly, and such polishing mode, efficiency is extremely low, and artifical labour is great, is unfavorable for work.
Disclosure of Invention
The invention aims to provide a polishing and rust removing device for a square steel pipe for constructional engineering, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a polishing and rust removing device for square steel pipes for constructional engineering comprises a base plate, wherein support rod frames are arranged on two sides of the upper end face of the base plate, a rotating transverse shaft is arranged at the top end of the support rod frame positioned at the left end, one end of the rotating transverse shaft is connected with a driving motor arranged on the support rod frame, two lifting lead screws are arranged on the inner side of the support rod frame at the left end, the bottom ends of the two lifting lead screws are fixedly connected with the base plate in a rotating mode, driving spiral sleeves matched with the two lifting lead screws are arranged on the two lifting lead screws, a connecting rod shaft is arranged between the two driving spiral sleeves, two ends of the connecting rod shaft are rotatably connected with the side walls of the driving spiral sleeves through rotating sleeves, clamping mechanisms are arranged on the rotating transverse shaft and the connecting rod shaft and comprise a rotating cylinder, side end plates and moving clamping plates are arranged on two sides of, the movable clamping plate is connected with the outer side wall of the rotating cylinder body in a sliding manner, the side end plate on the same side is connected with the movable clamping plate through a clamping spring, the lower end shaft sections of the two lifting screw rods are connected with a clamping motor arranged on the upper end face of the base plate through a transmission mechanism, the upper end face of the base plate is also provided with a hydraulic cylinder and a supporting vertical rod, the upper end of the hydraulic cylinder is provided with a supporting hydraulic rod, the upper ends of the supporting hydraulic rod and the supporting vertical rod are respectively provided with a polishing mechanism, each polishing mechanism comprises a U-shaped clamping plate and two pressing plates, the two pressing plates are symmetrically arranged on the inner side of the U-shaped clamping plate, the side, which is opposite to the two pressing plates, is connected with the inner side wall of the U-shaped clamping plate through a pressing spring, the lower end of the U-shaped clamping plate is, the U-shaped clamping plate port on the supporting vertical rod is horizontal, the lower end of the supporting vertical rod is provided with a connecting sliding block, and the connecting sliding block is positioned on the inner side of the moving sliding groove on the bottom substrate and is in sliding connection with the moving sliding groove.
As a further scheme of the invention: the two rotary cylinders are respectively and fixedly arranged on the rotary cross shaft and the outer side wall of the connecting rod shaft.
As a still further scheme of the invention: the transmission mechanism comprises two transmission belt wheels which are respectively arranged on the output shaft of the clamping motor and the shaft section at the lower end of the lifting screw rod, and the two transmission belt wheels are connected through a transmission belt.
As a still further scheme of the invention: the sliding connection mechanism comprises connecting sliding grooves arranged on the horizontal planes of the two pressing plates and fixed sliding blocks arranged on the inner sides of the connecting sliding grooves and connected with the connecting sliding grooves in a sliding mode, and the upper ends of the fixed sliding blocks are fixedly connected with the lower ends of the U-shaped clamping plates.
As a still further scheme of the invention: two U type cardboard are fixed respectively and are supported montant, support hydraulic stem top fixed connection.
As a still further scheme of the invention: an outer ring is arranged on one side of the support rod frame positioned at the right end, the side wall of the outer ring is fixedly arranged on the support rod frame through a fixed rod, and cleaning brushes are distributed on the inner side of the outer ring.
As a still further scheme of the invention: the upper end face of the base substrate is also provided with a waste chip collecting groove which is positioned under the outer ring.
Compared with the prior art, the invention has the beneficial effects that: the clamping motor drives the two lifting screw rods to rotate through the transmission mechanism, the two lifting screw rods drive the connecting rod shaft to move upwards through the driving spiral sleeve, so that the two clamping mechanisms clamp the square steel pipe, the movable clamping plates clamp the square steel pipe under the action of the clamping springs and can avoid the sliding of the square steel pipe to influence the polishing, meanwhile, the lifting hydraulic cylinder and the manual stirring support vertical rods enable the U-shaped clamping plates on the two polishing mechanisms to be clamped on the outer side of the direction steel pipe, the ports of the U-shaped clamping plates on the support hydraulic rods are upward, the ports of the U-shaped clamping plates on the support vertical rods are horizontal, the four sides of the square steel pipe are attached to the polishing sheets, then the driving motor is started, the driving motor drives the rotating cross shaft to drive the rotating barrel to rotate, and the rotating barrel enables the square steel pipe to move towards the right side through, and then polish simultaneously square steel pipe four sides lateral wall through the piece of polishing on two grinding machanism, improve the rust cleaning efficiency of polishing, and polish effectually, because the setting of pressure spring and chucking spring can make the square steel pipe lateral wall of different cross-sectional sizes polish. The steel pipe polishing machine is simple in structure, capable of avoiding manual hand-held polishing machines from moving along the side wall of a steel pipe for polishing, high in polishing efficiency, convenient and fast to use, small in manual labor force, applicable to polishing of longer steel pipes and high in practicability.
Drawings
FIG. 1 is a schematic structural diagram of a square steel pipe polishing and derusting device for constructional engineering.
FIG. 2 is a schematic structural diagram of the side surface of a square steel pipe polishing and derusting device for constructional engineering.
FIG. 3 is a schematic structural diagram of a polishing mechanism in the square steel pipe polishing and derusting device for the construction engineering.
FIG. 4 is a schematic structural diagram of an outer ring in the square steel pipe polishing and derusting device for constructional engineering.
Wherein: the device comprises a base substrate 1, a support rod frame 2, a rotating transverse shaft 3, a clamping mechanism 4, a connecting rod shaft 5, a driving motor 6, a lifting hydraulic cylinder 7, a supporting hydraulic rod 8, a polishing mechanism 9, a supporting vertical rod 10, a moving chute 11, a connecting slide block 12, an outer ring 13, a fixing rod 14, a waste chip collecting groove 15, a cleaning brush 16, a rotating cylinder 17, a side end plate 18, a moving clamping plate 19, a clamping spring 20, a lifting screw rod 21, a driving spiral sleeve 22, a rotating sleeve 23, a clamping motor 25, a transmission belt 26, a transmission belt wheel 27, a U-shaped clamping plate 28, a pressing plate 29, a pressing spring 30, a polishing piece 31, a connecting chute 32 and a fixing slide block 33.
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 to 4, in the embodiment of the present invention, a polishing and rust removing device for a square steel pipe for construction engineering includes a base substrate 1, support rod frames 2 are disposed on both sides of an upper end surface of the base substrate 1, a rotating horizontal shaft 3 is disposed on a top end of the support rod frame 2 located at a left end, one end of the rotating horizontal shaft 3 is connected to a driving motor 6 disposed on the support rod frame 2, two lifting screws 21 are disposed on an inner side of the support rod frame 2 located at the left end, bottom ends of the two lifting screws 21 are rotatably and fixedly connected to the base substrate 1, driving screw sleeves 22 matched with the two lifting screws 21 are disposed on the two lifting screws 21, a connecting rod shaft 5 is disposed between the two driving screw sleeves 22, both ends of the connecting rod shaft 5 are rotatably connected to side walls of the driving screw sleeves 22 through rotating sleeves 23, clamping mechanisms 4 are disposed on the rotating horizontal shaft 3 and the connecting rod shaft 5, the two sides of the rotating cylinder 17 are respectively provided with a side end plate 18 and a moving clamping plate 19, the side end plates 18 are fixedly connected with the end surface of the rotating cylinder 17, the moving clamping plates 19 are slidably connected with the outer side wall of the rotating cylinder 1, the side end plate 18 and the moving clamping plate 19 on the same side are connected through a clamping spring 20, the two rotating cylinders 17 are respectively and fixedly arranged on the outer side walls of the rotating transverse shaft 3 and the connecting rod shaft 5, the lower end shaft sections of the two lifting screw rods 21 are connected with a clamping motor 25 arranged on the upper end surface of the base plate 1 through a transmission mechanism, the transmission mechanism comprises two transmission belt wheels 27 respectively arranged on the output shaft of the clamping motor 25 and the lower end shaft sections of the lifting screw rods 21, the two transmission belt wheels 27 are connected through a transmission belt 26, the upper end surface of the base plate 1 is also provided with a hydraulic, the upper ends of the supporting hydraulic rods 8 and the supporting vertical rods 10 are respectively provided with a grinding mechanism 9, the grinding mechanism comprises a U-shaped clamping plate 28 and two pressing plates 29, the two pressing plates 29 are symmetrically arranged at the inner sides of the U-shaped clamping plate 28, the two pressing plates 29 are L-shaped, one sides, which are opposite to each other, of the two pressing plates 29 are connected with the inner side wall of the U-shaped clamping plate 28 through compression springs 30, the lower end of the U-shaped clamping plate 28 is connected with the horizontal plate surfaces of the two pressing plates 29 through a sliding connection mechanism, the sliding connection mechanism comprises connecting sliding grooves 32 arranged on the horizontal plate surfaces of the two pressing plates 29 and fixed sliding blocks 33 arranged at the inner sides of the connecting sliding grooves 32 and connected with the connecting sliding grooves in a sliding manner, the upper ends of the fixed sliding blocks 33 are fixedly connected with the lower ends of the U-shaped clamping plate 28, the opposite surfaces of the two pressing plates 29 are provided with, support the U type cardboard 28 port level on the montant 10, support the montant 10 lower extreme and be provided with link block 12, link block 12 is located the removal spout 11 inboard that sets up on the bottom substrate 1 and sliding connection with it, and the one side that is located the support bar frame 2 of right-hand member is provided with outer loop 13, the lateral wall of outer loop 13 passes through dead lever 14 installation to be fixed on support bar frame 2, and the inboard distribution of outer loop 13 has cleaning brush 16, and the piece on the steel pipe outer wall can be cleared up in the setting of cleaning brush 16, bottom substrate 1 up end still is provided with sweeps collection groove 15, and sweeps collection groove 15 is located outer loop 13 under.
The working principle of the invention is as follows: firstly, a steel pipe is placed between two clamping mechanisms 4, then a clamping motor 25 drives two lifting screw rods 21 to rotate through a transmission mechanism, the two lifting screw rods 21 drive a connecting rod shaft 5 to move upwards through a driving spiral sleeve 22, so that the two clamping mechanisms 4 clamp the square steel pipe, a moving clamping plate 19 clamps the square steel pipe under the action of a clamping spring 19 and can avoid the influence of the sliding of the square steel pipe on polishing, meanwhile, a lifting hydraulic cylinder 7 and a support vertical rod 10 are manually stirred to enable U-shaped clamping plates 28 on two polishing mechanisms 9 to be clamped on the outer sides of the direction steel pipe, the port of the U-shaped clamping plate 28 on the support vertical rod 10 is horizontal due to the upward port of the U-shaped clamping plate 28 on the support hydraulic rod 8, the four side surfaces of the square steel pipe are all attached to a polishing piece 31, then a driving motor 6 is started, the driving motor 6 drives a rotating transverse, the rotary cylinder body 17 enables the square steel pipe to move towards the right side through the friction force between the outer side wall and the steel pipe and the friction force between the movable clamping plate 19 and the outer side wall of the steel pipe, and then the polishing pieces 31 on the two polishing mechanisms polish the side walls of the four sides of the square steel pipe simultaneously, so that the polishing and rust removing efficiency is improved, the polishing effect is good, and the square steel pipe outer side walls with different cross sections can be polished due to the arrangement of the compression springs 30 and the clamping springs 20.
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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A polishing and rust removing device for square steel pipes for constructional engineering comprises a base substrate (1), wherein support rod frames (2) are arranged on two sides of the upper end face of the base substrate (1), and is characterized in that a rotating transverse shaft (3) is arranged at the top end of the support rod frame (2) at the left end, one end of the rotating transverse shaft (3) is connected with a driving motor (6) arranged on the support rod frame (2), two lifting screw rods (21) are arranged on the inner side of the support rod frame (2) at the left end, the bottom ends of the two lifting screw rods (21) are rotationally and fixedly connected with the base substrate (1), driving screw sleeves (22) matched with the lifting screw rods (21) are arranged on the two lifting screw rods (21), a connecting rod shaft (5) is arranged between the two driving screw sleeves (22), two ends of the connecting rod shaft (5) are rotationally connected with the side walls of the driving screw sleeves (22) through rotating sleeves (23), and clamping mechanisms (4) are arranged on the rotating transverse shaft, the clamping mechanism (4) comprises a rotating barrel (17), side end plates (18) and a moving clamping plate (19) are arranged on two sides of the rotating barrel (17), the side end plates (18) are fixedly connected with the end face of the rotating barrel (17), the moving clamping plate (19) is connected with the outer side wall of the rotating barrel (17) in a sliding mode, the side end plates (18) on the same side are connected with the moving clamping plate (19) through clamping springs (20), the lower end shaft sections of two lifting lead screws (21) are connected with clamping motors (25) arranged on the upper end face of the base plate (1) through transmission mechanisms, the upper end face of the base plate (1) is further provided with a hydraulic cylinder (7) and a supporting vertical rod (10), a supporting hydraulic rod (8) is arranged at the upper end of the hydraulic cylinder (7), and polishing mechanisms (9) are arranged at the upper ends of the supporting hydraulic rod (8) and the, grinding machanism includes U type cardboard (28) and two clamp plates (29), and two clamp plates (29) symmetry set up in U type cardboard (28) inboardly, and two clamp plates (29) are the L shape, and one side that two clamp plates (29) deviate from mutually is connected with U type cardboard (28) inside wall through pressure spring (30), and U type cardboard (28) lower extreme is connected with two clamp plates (29) horizontal plane through sliding connection mechanism, and two clamp plates (29) opposite face is provided with polishing piece (31), U type cardboard (28) port on the support hydraulic stem (8) makes progress, supports U type cardboard (28) port level on montant (10), supports montant (10) lower extreme and is provided with link block (12), and link block (12) are located the removal spout (11) inboard that sets up on base substrate (1) and sliding connection with it.
2. The square steel pipe polishing and rust removing device for the building engineering as recited in claim 1, wherein the two rotary cylinders (17) are respectively and fixedly arranged on the outer side walls of the rotary transverse shaft (3) and the connecting rod shaft (5).
3. The square steel pipe polishing and rust removing device for the construction engineering as claimed in claim 1, wherein the transmission mechanism comprises two transmission belt wheels (27) respectively arranged on an output shaft of the clamping motor (25) and a lower end shaft section of the lifting screw rod (21), and the two transmission belt wheels (27) are connected through a transmission belt (26).
4. The square steel pipe polishing and rust removing device for the constructional engineering as claimed in claim 1, wherein the sliding connection mechanism comprises a connecting sliding groove (32) arranged on the horizontal plate surfaces of the two pressing plates (29) and a fixed sliding block (33) arranged on the inner side of the connecting sliding groove (32) and connected with the connecting sliding groove in a sliding manner, and the upper end of the fixed sliding block (33) is fixedly connected with the lower end of the U-shaped clamping plate (28).
5. The square steel pipe polishing and derusting device for the constructional engineering as per claim 1, wherein the two U-shaped clamping plates (28) are respectively fixed at the top ends of the vertical supporting rod (10) and the hydraulic supporting rod (8) and fixedly connected with each other.
6. The square steel pipe polishing and rust removing device for the constructional engineering as claimed in claim 1, wherein an outer ring (13) is arranged on one side of the support rod frame (2) at the right end, the side wall of the outer ring (13) is fixedly installed on the support rod frame (2) through a fixing rod (14), and cleaning brushes (16) are distributed on the inner side of the outer ring (13).
7. The square steel pipe polishing and rust removing device for the constructional engineering as claimed in claim 6, wherein the upper end surface of the base substrate (1) is further provided with a scrap collecting groove (15), and the scrap collecting groove (15) is positioned right below the outer ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521820.3A CN108890492B (en) | 2018-05-28 | 2018-05-28 | Square steel pipe rust cleaning device that polishes for building engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521820.3A CN108890492B (en) | 2018-05-28 | 2018-05-28 | Square steel pipe rust cleaning device that polishes for building engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108890492A CN108890492A (en) | 2018-11-27 |
| CN108890492B true CN108890492B (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810521820.3A Active CN108890492B (en) | 2018-05-28 | 2018-05-28 | Square steel pipe rust cleaning device that polishes for building engineering |
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| CN (1) | CN108890492B (en) |
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| CN109605144A (en) * | 2018-12-29 | 2019-04-12 | 王家钰 | A kind of semi-automatic tubulose components grinding device |
| CN110142674A (en) * | 2019-04-24 | 2019-08-20 | 温其锋 | A kind of five metalworkings steel pipe grinding device |
| CN111113231B (en) * | 2019-12-27 | 2021-07-16 | 安徽熠启科技有限公司 | A rust cleaning device for square barrel outer wall |
| CN112338730B (en) * | 2020-10-20 | 2022-12-06 | 上海裕伟机电设备有限公司 | Machining is with square steel pipe outer wall grinding device of short section |
| CN112548806B (en) * | 2020-11-02 | 2022-11-11 | 河北水利电力学院 | A kind of steel bar rust removal device for building construction |
| CN113118896B (en) * | 2021-04-27 | 2022-06-24 | 杭州四通传动件有限公司 | Multi-end-face machining machine tool |
| CN113334210A (en) * | 2021-05-11 | 2021-09-03 | 海南科技职业大学 | Pre-buried reinforcing bar rust cleaning device |
| CN116765955B (en) * | 2023-08-15 | 2023-11-21 | 翔宇实业(太仓)有限公司 | Bicycle hub polishing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141891A (en) * | 1994-11-22 | 1996-06-04 | Taiyo Chuki Co Ltd | Device for grinding cleaning inside of transport pipe |
| CN2892364Y (en) * | 2005-11-28 | 2007-04-25 | 蔡基文 | Automatic polisher for stainless steel square pipe |
| CN103612189B (en) * | 2013-12-04 | 2015-10-14 | 高迟 | Square tube multiaspect synchronizing deruster |
| CN204221630U (en) * | 2014-11-05 | 2015-03-25 | 长葛市神光建筑机械厂 | A kind of discontinuous reinforcing bar rust cleaning mill tube |
| CN204748272U (en) * | 2015-07-27 | 2015-11-11 | 赵若骥 | Square outside of tubes table deruster |
| CN107520707A (en) * | 2017-10-26 | 2017-12-29 | 无锡智谷锐拓技术服务有限公司 | One kind machining uses square tube sanding apparatus |
| CN208323009U (en) * | 2018-05-28 | 2019-01-04 | 广西贵港建设集团有限公司 | A kind of architectural engineering rectangular steel tube polishing derusting device |
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2018
- 2018-05-28 CN CN201810521820.3A patent/CN108890492B/en active Active
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Effective date of registration: 20200731 Address after: No.3, 29 / F, building B, WISCO office building, No.999, Youyi Avenue, Qingshan District, Wuhan City, Hubei Province Applicant after: China Railway Construction Group Zhongnan Construction Co.,Ltd. Address before: 510000 Guangzhou High-tech Industrial Development Zone Science Avenue 231, 233 Skirt Building B1B2, 1st, 2nd, 3rd and 4th floors Applicant before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Effective date of registration: 20200731 Address after: 510000 Guangzhou High-tech Industrial Development Zone Science Avenue 231, 233 Skirt Building B1B2, 1st, 2nd, 3rd and 4th floors Applicant after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 450001 No. 3, unit 5, No. 1, science Avenue, 9 high tech Industrial Development Zone, Zhengzhou, Henan. Applicant before: ZHENGZHOU RONGXIAN NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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