CN109701963B - Stainless steel screwed pipe external screw thread scale removal device - Google Patents
Stainless steel screwed pipe external screw thread scale removal device Download PDFInfo
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- CN109701963B CN109701963B CN201910183123.6A CN201910183123A CN109701963B CN 109701963 B CN109701963 B CN 109701963B CN 201910183123 A CN201910183123 A CN 201910183123A CN 109701963 B CN109701963 B CN 109701963B
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Abstract
The invention provides a stainless steel threaded pipe external thread scale cleaning device which comprises a base and a guide rail, wherein the guide rail is fixedly arranged at the top of the base, a fixed machine body is movably connected above the guide rail, a moving motor is fixedly arranged below the inside of the fixed machine body, clamping blocks are fixedly arranged at the left end and the right end of the bottom of the fixed machine body, a rotating motor is fixedly arranged at the top of the fixed machine body, the right side of the rotating motor is rotatably connected with a bayonet through a rotating shaft, an adjusting screw rod is embedded into the outer side of the bayonet, the inner side of the adjusting screw rod is movably connected with a fixed surface, a control switch is fixedly arranged at the top of the fixed machine body, a cleaning machine body is fixedly arranged at the right side of the base, a dust collector is fixedly arranged at the bottom of the cleaning machine body, and an air pump is fixedly arranged at the top of the cleaning machine body. The cleaning device can be embedded into the thread clearance of the outer pipe of the threaded pipe to clean dirt between threads, the cleaning effect is better, and the cleaning efficiency and the practicability of the device are enhanced.
Description
Technical Field
The invention relates to the technical field of cleaning of threaded pipes, in particular to a stainless steel threaded pipe external thread cleaning device.
Background
The threaded pipe is also called low-rib pipe. The heat exchange tube is used as a core heat exchange element of the heat exchanger, the threaded tube is generally adopted in the high-efficiency heat exchange tube technology, and compared with the traditional smooth tube, the heat exchange tube has the advantages of high heat transfer efficiency, difficulty in scaling, small size, material saving and the like, and copper and aluminum are generally selected as materials of the threaded tube. Although the price of the aluminum pipe is lower than that of the copper pipe, the aluminum pipe has the defects of poor welding processing manufacturability, poor heat exchange performance, easiness in being damaged by a metal expansion head during pipe expansion and the like, and is not widely used. In recent years, as the price of copper is increased, the price of stainless steel is greatly reduced, the production process of stainless steel pipes is continuously improved, and stainless steel threaded pipes are used as substitute materials with better performance and lower cost, so that the stainless steel threaded pipes have wide application prospects.
Through patent retrieval, the invention with the prior patent number of CN201810454662.4 discloses a cleaning device for a precision threaded pipe component, which comprises a frame, a transmission disc, an adjusting seat and an operation frame, wherein the transmission disc is arranged at the upper left corner of the frame, the adjusting seat is arranged on the outer disc surface of the transmission disc, a driving motor and an adjusting motor are respectively arranged at the rear side of the transmission frame, a driven gear is arranged on the rear wall of the transmission disc, the front end of the driving motor is arranged on the transmission gear through a driving rotating shaft, the transmission gear is meshed with the driven gear, a first adjusting helical gear is arranged at the front end of the adjusting motor through an adjusting rotating shaft, a threaded rod is vertically arranged in the adjusting seat, a second adjusting helical gear is arranged at the bottom end of the threaded rod, the first adjusting helical gear is meshed with the second adjusting helical gear, and a threaded sleeve is arranged on the threaded rod, the invention can effectively remove dirt on the surface, simultaneously avoids the dirt moving towards a single direction during cleaning, and cannot form a dirt accumulation area during single-direction cleaning.
Based on the above description to and combine the equipment discovery among the prior art, current device is when cleaning the screwed pipe outer wall, if debris adhere to the card between the screw thread of screwed pipe, current device can't imbed fast to the screw thread within a definite time, clears away the dirt between the screw thread, and certain limitation occasionally in the in-service use, clean effect is poor slow, consequently this design to above-mentioned problem, designs a rational in infrastructure, and functional good cleaning device, in order to improve the practicality.
Disclosure of Invention
The invention aims to provide a stainless steel threaded pipe external thread scale cleaning device, which solves the problems that the existing device cannot be quickly embedded into the threads of a threaded pipe to clean dirt between the threads and the cleaning effect is low in differential speed.
The invention relates to an external thread scale cleaning device for a stainless steel threaded pipe, which has the purpose and the effect achieved by the following specific technical means:
a stainless steel screwed pipe external thread scale cleaning device comprises a base, a guide rail, a fixed machine body, a moving motor, a clamping block, a rotating motor, a clamping opening, an adjusting screw, a fixed surface, a control switch, a cleaning machine body, a dust collector, an air pump, a cleaning ring, a dust inlet, a supporting surface, a connecting rod, an extension rod, a limiting spring, a fixed surface, an air bag layer and a cleaning rod; the improved cleaning machine comprises a base, a guide rail, a fixed machine body, a movable motor, a clamping block, a rotating motor, a rotating shaft, a bayonet, an adjusting screw, a fixed surface, a control switch, a cleaning machine body, a dust collector, an air pump, a cleaning ring, a dust inlet, a dust outlet, a dust inlet, a dust outlet, a dust inlet, a dust outlet, a, the inner wall fixed mounting of clean ring has the holding surface, the inboard seamless welding of holding surface has the connecting rod, the outside nestification of connecting rod is provided with the extension rod, the spacing spring of inside bottom fixedly connected with of connecting rod, the equal fixed mounting in inboard of extension rod has the stationary plane, the equal fixed mounting in inboard of stationary plane has the gasbag layer, the inner wall on gasbag layer all closely laminates has clean pole.
Preferably, the lower part of the mobile motor is rotatably connected with a guide wheel through a belt, the guide wheel and the clamping block are embedded in the guide rail, and the fixed machine body is horizontally connected with the guide rail in a left-right sliding manner.
Preferably, the number of the adjusting screws and the number of the fixing surfaces are four, and the fixing surfaces are arranged on the inner wall of the bayonet at equal intervals.
Preferably, the number of the dust inlets for cleaning the inner wall of the machine body is four, and the four dust inlets are respectively arranged at the upper left corner, the lower left corner, the upper right corner and the lower right corner of the inner wall of the machine body.
Preferably, the dust storage cabinet is arranged on the front surface of the dust collector in a matched manner, and the dust inlet of the dust collector is communicated with the dust inlet through a guide pipe.
Preferably, the number of the supporting surfaces is four, and the four supporting surfaces are fixedly arranged on the inner wall of the cleaning ring in a cross shape.
Preferably, the extension rod slides in the horizontal direction in the connecting rod, and the other end of the limiting spring is fixedly connected with the outermost side of the extension rod.
Preferably, the outer sides of the air bag layers are provided with air inlet and outlet ports, and the air inlet and outlet ports are fixedly connected with the air pump through air pipes.
Preferably, the moving motor, the rotary motor dust collector and the air pump are electrically connected with an external power supply through a control switch.
Compared with the prior structure, the invention has the following beneficial effects:
by arranging the cleaning rod, the cleaning rod is tightly attached to the inner wall of the air bag layer, the air inlet and outlet are arranged on the outer side of the air bag layer and are fixedly connected with the air pump through the air pipe, so that when the threaded pipe is clamped in the middle of the cleaning machine body, the cleaning rod on the inner wall of the air bag layer is tightly attached to the outer wall of the threaded pipe, at the moment, the air pump injects a proper amount of air into the air bag layer, the cleaning rod is pushed to be embedded into a gap of threads after the air bag layer is expanded, the cleaning rod can effectively remove impurities in the thread gap when the rotating motor drives the threaded pipe to rotate, and by installing the fixed machine body, the fixed machine body and the guide rail are in horizontal left-right sliding connection, so that when the threaded pipe is clamped in the fixed machine body, the rotating motor in the fixed machine body can drive the threaded pipe to rotate, the cleaning rod can quickly clean the dirt on the outer wall of the threaded pipe, and meanwhile, the moving motor can drive the fixed machine body to move left and right, the pulling screwed pipe removes for the dirt that the cleaning rod can be with each face of longer screwed pipe outer wall is clear away, and cleaning speed is faster, and the effect is better.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a connecting structure according to the present invention;
FIG. 3 is a schematic sectional view of a right side partial structure of the cleaning body according to the present invention;
FIG. 4 is a sectional view of a fixing surface according to the present invention;
FIG. 5 is a partial view of the bayonet of the present invention;
FIG. 6 is an enlarged view of FIG. 5A according to the present invention;
in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-base, 101-guide rail, 2-fixed machine body, 201-moving motor, 202-fixture block, 203-rotating motor, 204-bayonet, 205-adjusting screw rod, 206-fixed surface, 207-control switch, 6-cleaning machine body, 601-dust collector, 602-air pump, 7-cleaning ring, 701-dust inlet, 8-supporting surface, 801-connecting rod, 802-extension rod, 803-limiting spring, 804-fixed surface, 805-air bag layer and 806-cleaning rod.
Detailed Description
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention, and it should be understood that the particular embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the terms "first," "second," "third," and the like 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 6:
the invention provides a stainless steel threaded pipe external thread scale cleaning device which comprises: the stainless steel threaded pipe external thread scale cleaning device comprises a base 1, a guide rail 101, a fixed machine body 2, a movable motor 201, a fixture block 202, a rotary motor 203, a bayonet 204, an adjusting screw 205, a fixed surface 206, a control switch 207, a cleaning machine body 6, a dust collector 601, an air pump 602, a cleaning ring 7, a dust inlet 701, a supporting surface 8, a connecting rod 801, an extension rod 802, a limiting spring 803, a fixed surface 804, an air bag layer 805 and a cleaning rod 806; the top of the base 1 is fixedly provided with a guide rail 101, the upper part of the guide rail 101 is movably connected with a fixed machine body 2, the lower part inside the fixed machine body 2 is fixedly provided with a moving motor 201, the left and right ends of the bottom of the fixed machine body 2 are fixedly provided with fixture blocks 202, the top of the fixed machine body 2 is fixedly provided with a rotating motor 203, the right side of the rotating motor 203 is rotatably connected with a bayonet 204 through a rotating shaft, the outer side of the bayonet 204 is embedded with an adjusting screw 205, the inner side of the adjusting screw 205 is movably connected with a fixed surface 206, the top of the fixed machine body 2 is fixedly provided with a control switch 207, the right side of the base 1 is fixedly provided with a cleaning machine body 6, the bottom of the cleaning machine body 6 is fixedly provided with a dust collector 601, the top of the cleaning machine body 6 is fixedly provided with an air pump 602, the middle part of the cleaning machine body 6 is embedded with a cleaning ring 7, and the inside of the cleaning ring 7 is fixedly provided with a dust inlet 701, the inner wall fixed mounting of clean ring 7 has holding surface 8, and the inboard seamless welding of holding surface 8 has connecting rod 801, and the outside nestification of connecting rod 801 is provided with extension rod 802, and the inside bottom fixedly connected with spacing spring 803 of connecting rod 801, the equal fixed mounting of inboard of extension rod 802 has stationary plane 804, and the equal fixed mounting in inboard of stationary plane 804 has gasbag layer 805, and the inner wall of gasbag layer 805 all closely laminates clean pole 806.
Wherein, the below of mobile motor 201 is connected with the guide pulley through the belt rotation, and guide pulley and fixture block 202 all imbed the setting in guide rail 101, and is the horizontal direction left and right sliding connection between fixed fuselage 2 and the guide rail 101.
The number of the adjusting screws 205 and the number of the fixing surfaces 206 are four, and the fixing surfaces 206 are arranged on the inner wall of the bayonet 204 at equal intervals, so that when one end of the threaded pipe is embedded into the bayonet 204, the bayonet 204 can more stably drive the threaded pipe to rotate.
Wherein, the dust entry 701 quantity of clean fuselage 6 inner wall is four, and four dust entry 701 set up respectively in the upper left corner, the lower left corner, the upper right corner and the lower right corner of clean fuselage 6 inner wall for when cleaning rod 806 when cleaning the dirt, the appeal that the dirt that drops can be produced by each dust catcher 601 attracts, makes the dirt accessible all directions dust entry 701 that cleaning rod 806 was swept and gets into and store in the inside dust storage cabinet of dust catcher 601, thereby has improved the collection effect of dirt.
Wherein, the dust storage cabinet is arranged on the front surface of the dust collector 601 in a matching manner, and the dust inlet of the dust collector 601 is communicated with the dust inlet 701 through a conduit, so that the dust collector 601 can generate attraction force, and the dirt swept by the cleaning rod 806 is sucked into the dust storage cabinet in the dust collector 601 through the dust inlet 701 for storage, thereby avoiding the dust splashing when the device works.
Wherein, the quantity of holding surface 8 is four, and four holding surfaces 8 are cross fixed mounting at clean inner wall of ring 7 for when the screwed pipe was embedded into to clean fuselage 6, four holding surfaces 8 in the clean ring 7 supported each face of screwed pipe through the inboard extension rod, prevent that the screwed pipe from swinging at will when processing, improved the stability of device.
Wherein, extension rod 802 is the horizontal direction and slides in the inside of connecting rod 801, and the other end of spacing spring 803 and the outside fixed connection of extension rod 802 for when the screwed pipe imbeds between the inboard clean pole 806 of extension rod 802, clean pole 806 can promote extension rod 802 and move toward the outside of connecting rod 801 inner wall, extrudees spacing spring 803, thereby spacing spring 803 can promote clean pole 806 and hug closely the screwed pipe outer wall of arbitrary size, has improved the application scope of device.
Wherein, the outside of gasbag layer 805 all is equipped with the air inlet and outlet, and air inlet and outlet all passes through fixed connection between trachea and the air pump 602 for when the screwed pipe card is in clean fuselage 6 middle part, the outer wall of screwed pipe is hugged closely to clean pole 806 of gasbag layer 805 inner wall, and after air pump 602 injected a proper amount of gas into gasbag layer 805, gasbag layer 805 inflation promoted clean pole 806 and imbeds to the clearance of screw thread, makes rotary motor 203 when driving the screwed pipe and rotate, clean pole 806 dirt in the screw thread clearance of can effectual cleaing away.
The mobile motor 201, the rotary motor dust collector 601 and the air pump 602 are electrically connected with an external power supply through the control switch 207, so that the control switch 207 is convenient for connecting or disconnecting the power supplies of the mobile motor 201, the rotary motor dust collector 601 and the air pump 602.
The specific use mode and function of the embodiment are as follows:
in the invention, firstly, the device is installed on a stable ground and the power supply of the device is connected with an external power supply, when the device starts to work, a threaded pipe is firstly embedded between four cleaning rods 806 of a cleaning ring 7, then a fixing surface 804 pushes an extension rod 802 to one end of the inner side of a connecting rod 801 to extrude a limiting spring 803, then one end of the threaded pipe is embedded into a bayonet 204 of a fixing machine body 2, then an adjusting screw 205 on the outer wall of the bayonet 204 is sequentially screwed, the adjusting screw 205 pushes a fixing surface 206 to extend towards the middle part of the bayonet 204 to fix the left end of the threaded pipe, then a control switch 207 is pressed, an air pump 602 starts to work, a proper amount of air is injected into an air bag layer 805 through an air pipe, the cleaning rod 806 is pushed to be embedded into a gap of threads after the air bag layer 805 is expanded, meanwhile, a rotary motor 203 drives the threaded pipe to rotate through the bayonet 204, so that the cleaning rods can quickly clean the outer wall of the threaded pipe and dirt 806 of a threaded piece, meanwhile, the movable motor 201 can drive the fixed machine body 2 to move left and right, the threaded pipe is pulled to move, dirt on each surface of the outer wall of the longer threaded pipe can be removed by the cleaning rod 806, then the dust collector 601 generates attraction, the dirt cleaned by the cleaning rod 806 is sucked into a dust storage cabinet in the dust collector 601 through the dust inlet 701 to be stored, the cleaning speed is higher, and the effect is better.
In summary, 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 technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. The utility model provides a stainless steel screwed pipe external screw thread scale removal device which characterized in that: the stainless steel threaded pipe external thread scale cleaning device comprises a base (1), a guide rail (101), a fixed machine body (2), a movable motor (201), a clamping block (202), a rotary motor (203), a bayonet (204), an adjusting screw rod (205), a fixed surface (206), a control switch (207), a cleaning machine body (6), a dust collector (601), an air pump (602), a cleaning ring (7), a dust inlet (701), a supporting surface (8), a connecting rod (801), an extension rod (802), a limiting spring (803), a fixed surface (804), an air bag layer (805) and a cleaning rod (806); the top fixed mounting of base (1) has guide rail (101), the top swing joint of guide rail (101) has fixed fuselage (2), the inside below fixed mounting of fixed fuselage (2) has mobile motor (201), the equal fixed mounting in both ends has fixture block (202) about fixed fuselage (2) bottom, the top fixed mounting of fixed fuselage (2) has rotating electrical machines (203), the right side of rotating electrical machines (203) is rotated through the pivot and is connected with bayonet socket (204), the outside embedding of bayonet socket (204) is provided with adjusting screw (205), the equal swing joint in inboard of adjusting screw (205) has stationary plane (206), the equal fixed mounting in top of fixed fuselage (2) has control switch (207), the right side fixed mounting of base (1) has clean fuselage (6), the bottom fixed mounting of clean fuselage (6) has dust catcher (601), the cleaning machine is characterized in that an air pump (602) is fixedly mounted at the top of the cleaning machine body (6), a cleaning ring (7) is embedded into the middle of the cleaning machine body (6), a dust inlet (701) is fixedly mounted inside the cleaning ring (7), a supporting surface (8) is fixedly mounted on the inner wall of the cleaning ring (7), a connecting rod (801) is seamlessly welded on the inner side of the supporting surface (8), an extension rod (802) is nested on the outer side of the connecting rod (801), a limiting spring (803) is fixedly connected to the bottom end inside the connecting rod (801), a fixing surface (804) is fixedly mounted on the inner side of the extension rod (802), an air bag layer (805) is fixedly mounted on the inner side of the fixing surface (804), and a cleaning rod (806) is tightly attached to the inner wall of the air bag layer (805);
the number of the dust inlets (701) on the inner wall of the cleaning machine body (6) is four, and the four dust inlets (701) are respectively arranged at the upper left corner, the lower left corner, the upper right corner and the lower right corner of the inner wall of the cleaning machine body (6);
a dust storage cabinet is arranged on the front surface of the dust collector (601) in a matched manner, and a dust inlet of the dust collector (601) is communicated with the dust inlet (701) through a guide pipe;
the number of the supporting surfaces (8) is four, and the four supporting surfaces (8) are fixedly arranged on the inner wall of the cleaning ring (7) in a cross shape;
the extension rod (802) slides in the horizontal direction in the connecting rod (801), and the other end of the limiting spring (803) is fixedly connected with the outermost side of the extension rod (802);
air inlets and air outlets are arranged on the outer sides of the air bag layers (805), and are fixedly connected with the air pump (602) through air pipes;
a guide wheel is rotatably connected below the moving motor (201) through a belt, the guide wheel and the fixture block (202) are embedded in the guide rail (101), and the fixed machine body (2) is in horizontal left-right sliding connection with the guide rail (101);
the number of the adjusting screw rods (205) and the number of the fixing surfaces (206) are four, and the fixing surfaces (206) are arranged on the inner wall of the bayonet (204) at equal intervals;
the mobile motor (201), the rotary motor dust collector (601) and the air pump (602) are electrically connected with an external power supply through a control switch (207);
firstly, the device is installed on a stable ground and a power supply of the device is connected with an external power supply, when the device starts to work, a threaded pipe is firstly embedded between four cleaning rods (806) of a cleaning ring (7), at the moment, a fixing surface (804) pushes an extension rod (802) to one end of the inner side of a connecting rod (801), a limiting spring (803) is squeezed, one end of the threaded pipe is embedded into a bayonet (204) of a fixing machine body (2), then an adjusting screw (205) on the outer wall of the bayonet (204) is sequentially screwed, the adjusting screw (205) pushes a fixing surface (206) to extend towards the middle of the bayonet (204), the left end of the threaded pipe is fixed, then a control switch (207) is pressed, at the moment, an air pump (602) starts to work, a proper amount of air is injected into an air bag layer (805) through an air pipe, the air bag layer (805) expands to push the cleaning rods (806) to be embedded into gaps of threads, and meanwhile, a rotary motor (203) drives the threaded pipe to rotate through the bayonet (204), make cleaning rod (806) can be with the dirt of screwed pipe outer wall and screw fast clean, removal motor (201) can drive fixed fuselage (2) simultaneously and remove about, the pulling screwed pipe removes, make cleaning rod (806) can clear away the dirt of each face of longer screwed pipe outer wall, later dust catcher (601) produce the appeal, the dirt that will clean pole (806) clear away inhales through dust entry (701) and stores in the dust storage cabinet of dust catcher (601) inside, clean speed is faster, the effect is better.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183123.6A CN109701963B (en) | 2019-03-12 | 2019-03-12 | Stainless steel screwed pipe external screw thread scale removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183123.6A CN109701963B (en) | 2019-03-12 | 2019-03-12 | Stainless steel screwed pipe external screw thread scale removal device |
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| Publication Number | Publication Date |
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| CN109701963A CN109701963A (en) | 2019-05-03 |
| CN109701963B true CN109701963B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910183123.6A Active CN109701963B (en) | 2019-03-12 | 2019-03-12 | Stainless steel screwed pipe external screw thread scale removal device |
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| CN111041504A (en) * | 2019-12-30 | 2020-04-21 | 郑祥模 | Mechanical cleaning drying device |
| CN112854727A (en) * | 2021-01-13 | 2021-05-28 | 丽水市育达机械设备制造有限公司 | Maintenance device of full hall scaffold frame for building |
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| CN204866747U (en) * | 2015-06-03 | 2015-12-16 | 东北石油大学 | Oil field is oil pipe belt cleaning device for investigation |
| CN105499175A (en) * | 2016-01-29 | 2016-04-20 | 江苏保捷锻压有限公司 | Flange shaft thread cleaning device |
| CN205949418U (en) * | 2016-06-19 | 2017-02-15 | 高登千 | Frame -type oil tube outer wall cleaning brush |
| CN107790443A (en) * | 2017-10-10 | 2018-03-13 | 柴越 | A kind of pipe high-pressure water washing device |
| CN107626691A (en) * | 2017-10-31 | 2018-01-26 | 天津华北集团铜业有限公司 | A kind of copper pipe outer cleaner |
| CN207723088U (en) * | 2017-11-22 | 2018-08-14 | 唐玉花 | A kind of LED light dust-extraction unit |
| CN108080359A (en) * | 2017-12-18 | 2018-05-29 | 刘占明 | A kind of constructing tunnel pipe cleaning equipment |
| CN108311483A (en) * | 2018-01-29 | 2018-07-24 | 马奔腾 | A kind of medical respiratory tube cleaning and sterilizing processing system |
| CN108311485A (en) * | 2018-05-14 | 2018-07-24 | 武汉思异汇创科技有限公司 | A kind of cleaning device of accurate thread duct member |
| CN108636947A (en) * | 2018-06-04 | 2018-10-12 | 含山县兴达球墨铸铁厂 | A kind of cleaning device of ductile iron pipe |
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Effective date of registration: 20221202 Address after: 315000 No. 16, Xinheng 6th Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: NINGBO ANBANG PIPE Co.,Ltd. Address before: 643000 No. 395, Beihu South Road, Fushi Town, Fushun County, Zigong City, Sichuan Province Patentee before: Zhang Yin |