CN110076662A - A kind of hand-held type multifunctional rust removing device for steel tube - Google Patents
A kind of hand-held type multifunctional rust removing device for steel tube Download PDFInfo
- Publication number
- CN110076662A CN110076662A CN201910444091.0A CN201910444091A CN110076662A CN 110076662 A CN110076662 A CN 110076662A CN 201910444091 A CN201910444091 A CN 201910444091A CN 110076662 A CN110076662 A CN 110076662A
- Authority
- CN
- China
- Prior art keywords
- brush
- hand
- removing device
- steel tube
- driving motor
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- 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.)
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Classifications
-
- 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
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
-
- 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
-
- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of hand-held type multifunctional rust removing device for steel tube, it is related to steel pipe derusting technical field, solve the problems, such as that steel pipe derusting is at high cost low with rust cleaning efficiency in the prior art, it is characterized in that: including shell, brush assembly, driving motor and the transmission mechanism for converting driving motor rotor circumference to brush assembly back and forth movement, driving motor is fixedly connected inside the shell, brush assembly is connect by transmission mechanism with driving motor, brush assembly includes brush, brush is equipped with for adjusting the regulating mechanism of brush curvature as a further solution of the present invention；The present invention drives the brush assembly of variable curvature along steel pipe axis back and forth movement by being converted into the transmission mechanism of brush assembly back and forth movement function with driving motor rotor circumference, to complete derusting work, compared with the existing technology, the present invention and being bonded for steel pipe are bigger, and rust cleaning efficiency is higher.
Description
Technical field
The present invention relates to steel pipe derusting technical field more particularly to a kind of hand-held type multifunctional rust removing device for steel tube.
Background technique
Steel pipe is indispensable circulation material in construction activity, and usage amount is very big, takes and tears open very frequently.Steel pipe is set up
Afterwards because being chronically exposed to outdoor, is exposed to the sun and rain and bear load impacting, it is easy to which surface peeling paint generates corrosion phenomena.
It is derusted after removal, corrosion-resistant maintenance work.
China Patent Publication No. " CN109434650A " discloses a kind of fast automatic rust removalling equipment of building steel tube, comprising:
Rectangular slab, steel brush fixing seat B and steel brush；The rectangular slab left side and right side are welded with the rectangular column；It is described
Steel brush fixing seat A is equipped with two pieces altogether, and is semicircular structure.The present invention passes through fixed plate A, fixed plate B, idler wheel, roller, steel
The steel pipe that mutual switching between brush fixing seat A and steel brush fixing seat B can be 30cm to diameter and diameter is 10cm removes
Rust, enhances the scope of application and flexibility of the present apparatus；The device passes through motor A, belt wheel A, gear A, belt wheel B, gear B, rolling
Wheel, round hole, threaded hole, roller are equipped with, and on the one hand by the rotation of idler wheel or roller, can make the steel for needing to derust
Pipe moves right and continuously derust automatically, on the other hand being equipped with by idler wheel and roller, can be to different-diameter
Steel pipe is moved, and improves flexibility, the degree of automation and the rust cleaning efficiency of the present apparatus, but the device there are cost compared with
High problem, and steel pipe using it is rear and it is not all get rusty, do not need integrally to derust to steel pipe, and the device work when need
Steel pipe is placed on rust remover by root, serious waste of resources, therefore, hand cleaning is more suitable for the derusting work of building steel tube.
Currently, manual grinding generally uses sander, sander in the prior art drives circular metal brush by motor
Rotation, still, metallic brush is planar structure, and smaller with round steel pipe contact surface, grinding efficiency is lower, therefore, we have proposed
A kind of hand-held type multifunctional rust removing device for steel tube.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing drawbacks, provide a kind of hand-held type multifunctional steel pipe derusting dress
It sets, by driving the steel brush of variable curvature along the quick back and forth movement of steel pipe axis, reaches the quick derusting of steel pipe, to solve now
There is the steel pipe derusting problem low with rust cleaning efficiency at high cost in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of hand-held type multifunctional rust removing device for steel tube, including shell, brush assembly, driving motor and by driving motor rotor circle
Turnover turn turns to the transmission mechanism of brush assembly back and forth movement, and driving motor is fixedly connected inside the shell, and brush assembly passes through
Transmission mechanism is connect with driving motor, and brush assembly includes brush, and brush is equipped with the regulating mechanism for adjusting brush curvature
As a further solution of the present invention.
As a further solution of the present invention, transmission mechanism includes connector, crank and rocking bar, and one end of crank, which is equipped with, to be used
In the splined hole being cooperatively connected with driving motor, the other end of crank is equipped with the round connecting column cooperated with rocking bar, and the one of rocking bar
End is equipped with U-type groove, and the other end is equipped with connecting rod, the drive shell for being limited to rocking bar is equipped on the outside of rocking bar；Connector
One end is equipped with for the branch earhole hinged with brush assembly, and the limit hole for connecting with rocking bar is equipped among connector, even
Connector is fixedly connected with the rockers.
As further scheme of the invention, the connecting rod on rocking bar is equipped with the plane for limit in two sides up and down.
As a further solution of the present invention, it is additionally provided with branch otic placode in brush, branch otic placode, which is equipped with, to be used for and transmission mechanism
Hinged brush trunnion.
As the present invention, further scheme, the regulating mechanism include adjusting bolt and adjusting nut, adjust bolt
It is placed in the strip groove that brush trunnion both ends open up, one end and the brush for adjusting bolt are hinged, and adjusting nut is located at branch otic placode
Between brush.
As further scheme of the invention, the reinforcement for optimizing regulation effect is equipped between brush and adjusting bolt
Muscle, reinforcing rib are fixedly connected in brush, and reinforcing rib and adjusting bolted splice.
As a further solution of the present invention, brush is equipped with bristle or sand paper, and bristle is metal bristle.
As a further solution of the present invention, brush both ends are equipped with flexible cleaning block, and flexible cleaning block is rubber or sponge.
In conclusion compared with the prior art, the invention has the following beneficial effects:
1, the transmission mechanism of the invention by being converted into brush assembly back and forth movement function with driving motor rotor circumference
Drive the brush assembly of variable curvature along steel pipe axis back and forth movement, to complete derusting work, compared with the existing technology, this hair
Bright bigger with being bonded for steel pipe, rust cleaning efficiency is higher.
2, the present invention is hand-held derusting device, and relative to automation derusting device, the present invention has the function of fixed point derusting
Can, avoid the wasting of resources.
3, of the invention since brush is spring steel plate, so the present invention not only can also remove steel plate to steel pipe derusting
Derusting, has functional diversity, and in steel plate rust cleaning efficiency, the present invention is equally better than sander.
4, both ends of the present invention are equipped with cleaning block, can wipe iron rust in descaling process, have and observe derusting effect in real time
Function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hand-held type multifunctional rust removing device for steel tube.
Fig. 2 is the structural schematic diagram of transmission mechanism in hand-held type multifunctional rust removing device for steel tube.
Fig. 3 is the structural schematic diagram of rocking bar in hand-held type multifunctional rust removing device for steel tube.
Fig. 4 is the structural schematic diagram of connector in hand-held type multifunctional rust removing device for steel tube.
Fig. 5 is the structural schematic diagram of crank in hand-held type multifunctional rust removing device for steel tube.
Fig. 6 is the structural schematic diagram of brush assembly in hand-held type multifunctional rust removing device for steel tube embodiment 1.
Fig. 7 is the structural schematic diagram of brush assembly in hand-held type multifunctional rust removing device for steel tube embodiment 2.
Appended drawing reference: 1- shell, 11- rear shell, 12- mounting plate, 2- drive shell, 3- connector, 31- limit hole, 4- brush
Component, 41- brush, 42- reinforcing rib, 43- branch otic placode, 44- brush trunnion, 45- adjust bolt, 46- flexibility cleaning block, 47- brush
Hair, 5- driving motor, 6- crank, 7- rocking bar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in FIG. 1 to FIG. 2, a kind of hand-held type multifunctional rust removing device for steel tube, including shell 1, brush assembly 4, driving motor 5
And transmission mechanism, driving motor 5 are fixedly connected in shell 1, brush assembly 4 is connect by transmission mechanism with driving motor 5, is driven
Dynamic motor 5 drives brush assembly 4 to move back and forth by transmission mechanism, completes derusting work；
Shell 1 is plastic shell, and the front end of shell 1 is equipped with rear shell 11, is connected for fixing with the drive shell 2 of protection transmission mechanism
It connects, 1 rear end of shell is equipped with mounting plate 12, and the lock chamber with 5 shapes always, driving are equipped with for preventing dust from entering, in shell 1
Motor 5 is fixed in lock chamber, and the control module of driving motor 5 is additionally provided in shell 1, and in the present embodiment, driving motor 5 is
Driving motor in sander in the prior art, the control module of driving motor 5 are the prior art；
Preferably, the output shaft of driving motor 5 is equipped with spline；
Drive shell 2 is square metal shell, and one end of drive shell 2 is equipped with bar shaped limit hole, plays protection transmission mechanism and to transmission
The purpose that mechanism is limited；
As shown in Fig. 2, transmission mechanism includes connector 3, crank 6 and rocking bar 7, as shown in figure 5, crank 6 is bullion block, it is bent
One end of handle 6 is equipped with the splined hole for being cooperatively connected with driving motor 5, and the output shaft cooperation of crank 6 and driving motor 5 makes
Obtaining when driving motor 5 rotates drives crank 6 to rotate, and the other end of crank 6 is equipped with circle connecting column, and connecting column is located in rocking bar 7；
As shown in figure 3, one end of rocking bar 7 is equipped with U-type groove, the other end is equipped with connecting rod, and rocking bar 7 is located in drive shell 2, rocking bar 7
Upper and lower ends contacted with 2 inner wall of drive shell so that rocking bar 7 can only move left and right；The connecting column of crank 6 and the U-type groove of rocking bar 7
Cooperation, when crank 6 rotates, the connecting column of crank 6 drives 7 back and forth movement of rocking bar；
In the present embodiment, two sides are equipped with the plane for limit to the connecting rod on rocking bar 7 up and down, and are at left and right sides of connecting rod
Arc, the design method of the connecting rod of rocking bar 7 are to prevent the connector 3 being fixedly connected on rocking bar 7 from rotating, and influence derusting effect
Fruit；
As shown in figure 4, connector 3 is branch ear mount, one end of connector 3 is equipped with for the branch earhole hinged with brush assembly 4, and
The limit hole 31 for connecting with rocking bar 7, the section of the connecting rod of the shape and rocking bar 7 of limit hole 31 are equipped among connector 3
Shape is identical, and the bolt hole passed through for bolt is additionally provided in limit hole 31；When connection, connector 3 passes through interference fit connection
In the connecting rod of rocking bar 7, while fastening bolt is pre-tightened in the connecting rod of rocking bar 7 by connector 3, is played and is further strengthened
The effect of connection；
As shown in fig. 6, brush assembly 4 includes brush 41 and branch otic placode 43, bristle 47 is connected in brush 41, bristle 47 is metal
Bristle, for the derusting work of steel pipe, branch otic placode 43 is fixedly connected on the side for deviating from bristle 47 in brush 41, on branch otic placode 43
Equipped with brush trunnion 44, brush trunnion 44 is hinged by pin and the trunnion on connector 3, plays the angle for adjusting brush assembly 4
Effect, when connector 3 is moved left and right by the drive of rocking bar 7, connector 3 drives the round-trip fortune in the left and right on steel pipe of brush assembly 4
It is dynamic, reach derusting work；Preferably, brush 41 is super-elastic metal plate, and in the present embodiment, brush 41 is 301 stainless steels；
Preferably, in order to adapt to the steel pipe of different-diameter, the adjusting machine for adjusting 41 curvature of brush is additionally provided on brush assembly 4
Structure, the regulating mechanism include reinforcing rib 42 and adjust bolt 45, and reinforcing rib 42 is fixedly connected on both sides of the upper end of brush 41,
For optimizing regulation effect, adjusts bolt 45 and be placed in the strip groove that 44 both ends of brush trunnion open up, adjust the one of bolt 45
End is hinged with reinforcing rib 42, and adjusting bolt 45 is equipped with the adjusting nut for adjusting, and adjusting nut is located at branch otic placode 43 and adds
Between strengthening tendons 42, when rotating adjusting nut, adjusts bolt 45 and pass through reinforcing rib under the cooperation of adjusting nut and branch otic placode 43
42 bend brush 41, to adjust the curvature of brush 41.
Embodiment 2
As shown in FIG. 1 to FIG. 2, a kind of hand-held type multifunctional rust removing device for steel tube, including shell 1, brush assembly 4, driving motor 5
And transmission mechanism, driving motor 5 are fixedly connected in shell 1, brush assembly 4 is connect by transmission mechanism with driving motor 5, is driven
Dynamic motor 5 drives brush assembly 4 to move back and forth by transmission mechanism, completes derusting work；
As shown in fig. 7, the both ends of brush 41 are equipped with flexible cleaning block 46 in the present embodiment, for preventing iron rust from disorderly flying and wiping
Steel pipe, to check derusting effect in real time；In the present embodiment, flexible cleaning block 46 is rubber；Brush 41 is through Overheating Treatment
Manganese steel；
Other and embodiment 1 is identical.
Embodiment 3
As shown in FIG. 1 to FIG. 2, a kind of hand-held type multifunctional rust removing device for steel tube, including shell 1, brush assembly 4, driving motor 5
And transmission mechanism, driving motor 5 are fixedly connected in shell 1, brush assembly 4 is connect by transmission mechanism with driving motor 5, is driven
Dynamic motor 5 drives brush assembly 4 to move back and forth by transmission mechanism, completes derusting work；In the present embodiment, flexible cleaning block 46
It is other identical with embodiment 2 for sponge.
Embodiment 3
As shown in FIG. 1 to FIG. 2, a kind of hand-held type multifunctional rust removing device for steel tube, including shell 1, brush assembly 4, driving motor 5
And transmission mechanism, driving motor 5 are fixedly connected in shell 1, brush assembly 4 is connect by transmission mechanism with driving motor 5, is driven
Dynamic motor 5 drives brush assembly 4 to move back and forth by transmission mechanism, completion derusting work, in the present embodiment, in brush assembly 4
Brush 41 on do not contain bristle 47, be fixedly connected with sand paper in the position of bristle 47.
In conclusion the working principle of the invention is:
The present invention converts brush assembly 4 for the circular motion of driving motor 5 by the motion principle of borrow electric shaver
It moves back and forth, so that brush assembly 4 be made to move back and forth along steel pipe axis, since brush 41 is super-elastic metal plate, adjusts bolt
45 bend brush 41 under the action of adjusting nut and branch otic placode 43, to change the curvature of brush 41, thus the brush made
41 is higher with steel pipe compactness, so that the derusting area of brush assembly is bigger, to improve rust cleaning efficiency；
The present invention is hand-held derusting device, does not need to move steel pipe, and when derusting derusts only for section of getting rusty, and is mentioned
High resource utilization.
It should be strongly noted that the application that derusting is the prior art is carried out by bristle in the application, it can by driving
The steel brush of variable curvature achievees the purpose that quick derusting is the innovative point of the application along the quick back and forth movement of steel pipe axis, effectively
Solve the problems, such as that steel pipe derusting is at high cost low with rust cleaning efficiency in the prior art.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic.The spy of " first ", " second " etc. is defined as a result,
Sign can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of hand-held type multifunctional rust removing device for steel tube, including shell (1), brush assembly (4) and driving motor (5), driving
Motor (5) is fixedly connected in shell (1), which is characterized in that further includes converting brush for driving motor (5) rotor circumference
The transmission mechanism of sub-component (4) back and forth movement, brush assembly (4) are connect by transmission mechanism with driving motor (5), brush assembly
It (4) include brush (41), brush (41) is equipped with the regulating mechanism for adjusting brush (41) curvature.
2. hand-held type multifunctional rust removing device for steel tube according to claim 1, which is characterized in that transmission mechanism includes connection
Head (3), crank (6) and rocking bar (7), one end of crank (6) are equipped with the splined hole for being cooperatively connected with driving motor (5), bent
The other end of handle (6) is equipped with the round connecting column cooperated with rocking bar (7), and one end of rocking bar (7) is equipped with U-type groove, and the other end is equipped with
Connecting rod, rocking bar (7) outside are equipped with the drive shell (2) for being limited to rocking bar (7)；One end of connector (3), which is equipped with, to be used
The limit hole (31) for connecting with rocking bar (7) is equipped in the branch earhole hinged with brush assembly (4), and among connector (3),
Connector (3) is fixedly connected with rocking bar (7).
3. hand-held type multifunctional rust removing device for steel tube according to claim 2, which is characterized in that the connection on rocking bar (7)
Bar is equipped with the plane for limit in two sides up and down.
4. hand-held type multifunctional rust removing device for steel tube according to claim 1, which is characterized in that brush is additionally provided on (41)
Branch otic placode (43), branch otic placode (43) are equipped with for the brush trunnion (44) hinged with transmission mechanism (3).
5. hand-held type multifunctional rust removing device for steel tube according to claim 4, which is characterized in that the regulating mechanism includes
Bolt (45) and adjusting nut are adjusted, bolt (45) is adjusted and is placed in the strip groove that brush trunnion (44) both ends open up, adjust
Hingedly, adjusting nut is located between branch otic placode (43) and brush (41) for one end and brush (41) of bolt (45).
6. hand-held type multifunctional rust removing device for steel tube according to claim 5, which is characterized in that brush (41) and adjusting spiral shell
The reinforcing rib (42) for optimizing regulation effect is equipped between bolt (45), reinforcing rib (42) is fixedly connected on brush (41), and
Reinforcing rib (42) and adjusting bolt (45) are hinged.
7. -6 any hand-held type multifunctional rust removing device for steel tube according to claim 1, which is characterized in that in brush (41)
Equipped with bristle (47) or sand paper.
8. hand-held type multifunctional rust removing device for steel tube according to claim 7, which is characterized in that bristle (47) is metallic brush
Hair.
9. -6 any hand-held type multifunctional rust removing device for steel tube according to claim 1, which is characterized in that brush (41) two
End is equipped with flexible cleaning block (46).
10. hand-held type multifunctional rust removing device for steel tube according to claim 9, which is characterized in that flexible cleaning block (46)
For rubber or sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444091.0A CN110076662A (en) | 2019-05-27 | 2019-05-27 | A kind of hand-held type multifunctional rust removing device for steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444091.0A CN110076662A (en) | 2019-05-27 | 2019-05-27 | A kind of hand-held type multifunctional rust removing device for steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110076662A true CN110076662A (en) | 2019-08-02 |
Family
ID=67421811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910444091.0A Pending CN110076662A (en) | 2019-05-27 | 2019-05-27 | A kind of hand-held type multifunctional rust removing device for steel tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN110076662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745504A (en) * | 2020-05-20 | 2020-10-09 | 深圳市裕展精密科技有限公司 | Polishing mechanism, polishing device and polishing method |
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| CN206708629U (en) * | 2017-03-28 | 2017-12-05 | 北京晟通弘拓科技有限公司 | The anti-blocking capping of sewage pipe |
| CN107838772A (en) * | 2017-12-01 | 2018-03-27 | 成都益睿信科技有限公司 | A kind of multi-angle polished grinding tool |
| CN208342490U (en) * | 2018-03-19 | 2019-01-08 | 沧州德安防爆特种工具制造有限公司 | A kind of explosion-proof energy saving copper brush |
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| US4381911A (en) * | 1979-04-02 | 1983-05-03 | Evans Bell | Portable hand controlled cement finishing machine |
| CN2288026Y (en) * | 1996-01-25 | 1998-08-19 | 辽河石油勘探局油田建设工程一公司 | Steel brush regulating mechanism for draw spring type steel tube rust cleaner |
| CN2497944Y (en) * | 2001-09-10 | 2002-07-03 | 李海波 | Reciprocating electric shaver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745504A (en) * | 2020-05-20 | 2020-10-09 | 深圳市裕展精密科技有限公司 | Polishing mechanism, polishing device and polishing method |
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Application publication date: 20190802 |
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| RJ01 | Rejection of invention patent application after publication |