CN208628582U - A kind of inner wall of the pipe ring groove processing device - Google Patents
A kind of inner wall of the pipe ring groove processing device Download PDFInfo
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- CN208628582U CN208628582U CN201821204398.0U CN201821204398U CN208628582U CN 208628582 U CN208628582 U CN 208628582U CN 201821204398 U CN201821204398 U CN 201821204398U CN 208628582 U CN208628582 U CN 208628582U
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- fixedly connected
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- electric pushrod
- wall
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Abstract
The utility model discloses a kind of inner wall of the pipe ring groove processing devices, including support plate, the upper surface of the support plate is fixedly connected with the lower surface of the first fixed plate, the right side of first fixed plate is fixedly connected with the fuselage of motor, the output shaft of the motor is fixedly connected with the left side of mounting plate, the output shaft of the motor is located at the center of mounting plate left side, and the lower surface of the mounting plate and the upper surface of two idler wheels overlap.The inner wall of the pipe ring groove processing device, pass through setting motor, mounting plate, bolt, clamping plate, the first electric pushrod, third electric pushrod and slot knife, control the distance of third electric pushrod elongation, it can control the spacing between two slot knives, it is adapted to the tubing of a variety of different inner diameters, using the work of the first electric pushrod, the position of slot knife can be adjusted, so as to preferably carry out fluting work to pipe material inner wall, so as to improve the processing efficiency to pipe material inner wall annular groove.
Description
Technical field
The utility model relates to field of mechanical technique, specially a kind of inner wall of the pipe ring groove processing device.
Background technique
Current existing inner wall of the pipe has annular groove processing device, when processing to annular groove, can only adapt to a part
The pipeline of internal diameter, it has not been convenient to annular groove is processed, and inconvenience is adjusted the position of slot knife, influences in pipeline
The position of wall fluting needs worker is multiple again to the position of slot knife to be adjusted, to will lead to the processing of pipeline annular groove
Efficiency reduces.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of inner wall of the pipe ring groove processing device, solves mesh
Preceding existing inner wall of the pipe has annular groove processing device, when processing to annular groove, can only adapt to the pipeline of a part of internal diameter,
Inconvenience is processed annular groove, and inconvenience is adjusted the position of slot knife, influences the position slotted to inner wall of the pipe
It sets, needs worker is multiple again to the position of slot knife to be adjusted, pipeline annular groove processing efficiency reduction is asked to will lead to
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of inner wall of the pipe ring groove processing device, packet
Support plate is included, the upper surface of the support plate is fixedly connected with the lower surface of the first fixed plate, the right side of first fixed plate
Face is fixedly connected with the fuselage of motor, and the output shaft of the motor is fixedly connected with the left side of mounting plate, the motor it is defeated
Shaft is located at the center of mounting plate left side, and the lower surface of the mounting plate and the upper surface of two idler wheels overlap, and two
Idler wheel is symmetricly set on the front and rear sides of motor, the left side of the right side of the mounting plate and the first loading plate and the second loading plate
Face is fixedly connected, and first loading plate is located at the surface of the second loading plate, and the upper surface of first loading plate is connected with
Nut, the nut inner thread are connected with bolt, and the bottom end of the bolt is fixedly connected with the upper surface of clamping plate.
The upper surface of the support plate is fixedly connected with the lower surface of sliding block, and the sliding block is located at the right side of mounting plate, institute
It states sliding block to be slidably connected in the sliding slot that the second fixed plate lower surface opens up, the left side of second fixed plate is connected with first
Sliding sleeve is socketed with the first slide bar in first sliding sleeve, and the right end of first slide bar is fixedly connected with the left side of connecting rod,
The left side of the connecting rod is fixedly connected by the first electric pushrod with the right side of the second fixed plate, and described first electronic pushes away
Bar is located at the underface of the first slide bar, and the upper surface of the support plate is fixedly connected with the lower surface of fixed block, the fixed block
The back side be fixedly connected by the second electric pushrod with the front of link block, the left side of the link block and the second fixed plate
Right side is fixedly connected.
The left end of first slide bar is fixedly connected with the right side of fixed frame, and the right side of the fixed frame inner wall passes through
Third electric pushrod is fixedly connected with the right end of pulley, and the left end of the pulley and the opposite face of two movable blocks overlap, and two
The one side that a movable block is located remotely from each other is fixedly connected with two opposite one end of the second slide bar respectively, and the table of two the second slide bars
Face is socketed with the second sliding sleeve, and two the second sliding sleeves are respectively engaged with the upper and lower surfaces of fixed frame, and two second
One end that slide bar is located remotely from each other is fixedly connected with the opposite face of two slot knives respectively, and the surface of two the second slide bars is socketed with
Spring, and the both ends of two springs be located remotely from each other respectively with the upper surface of fixed frame inner wall and lower surface and two movable blocks one
Face is fixedly connected.
Preferably, the lower surface of the support plate is fixedly connected with the upper surface of four supporting legs, and four supporting legs point
Not Wei Yu support plate lower surface close to quadrangle position.
Preferably, the lower surface of the supporting leg is fixedly connected with the upper surface of friction pad, the diameter of the friction pad with
The diameter of supporting leg lower surface is identical.
Preferably, the opposite face of the clamping plate and the second loading plate has been respectively fixedly connected with the first non-slip mat and second and has prevented
Skidding, first non-slip mat and the second non-slip mat it is of same size.
Preferably, position of the support plate upper surface between the first fixed plate and mounting plate is provided with power supply, institute
The output end for stating power supply is electrically connected with the input terminal of switch.
Preferably, the left side of the first fixed plate is arranged in described switch, the output end of the switch respectively with motor, the
The input terminal of one electric pushrod, the second electric pushrod and third electric pushrod is electrically connected.
The utility model provides a kind of inner wall of the pipe ring groove processing device, have it is following the utility model has the advantages that
(1), the inner wall of the pipe ring groove processing device electronic is pushed away by setting motor, mounting plate, bolt, clamping plate, first
Bar, third electric pushrod and slot knife, the output shaft of motor can be such that mounting plate rotates when motor works, so as to drive tubing
It is rotated, so that slot knife be facilitated to carry out fluting work to pipe material inner wall, the first electric pushrod can make slot knife or so when extending
Mobile, third electric pushrod can make the spacing of two slot knives become larger when extending, so as to preferably carry out to pipe material inner wall
Fluting, the distance of control third electric pushrod elongation, can control the spacing between two slot knives, be adapted in a variety of differences
The tubing of diameter can be adjusted the position of slot knife, using the work of the first electric pushrod so as to preferably to tubing
Inner wall carries out fluting work, so as to improve the processing efficiency to pipe material inner wall annular groove.
(2), the inner wall of the pipe ring groove processing device, by setting idler wheel and sliding block, using idler wheel can to mounting plate into
Row support, can make mounting plate preferably tubing be driven to be rotated, the second fixed plate can be fixed using sliding block, from
And can the more stable position to slot knife be adjusted, and the utility model which has a compact structure and a reasonable design is practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model is faced；
Fig. 2 is the structural schematic diagram of the second electric pushrod of the utility model side view；
Fig. 3 is the structural schematic diagram amplified at the utility model A.
In figure: 1 support plate, 2 first fixed plates, 3 motors, 4 mounting plates, 5 idler wheels, 6 first loading plates, 7 second loading plates,
8 nuts, 9 bolts, 10 clamping plates, 11 sliding blocks, 12 second fixed plates, 13 sliding slots, 14 first sliding sleeves, 15 first slide bars, 16 connections
Bar, 17 first electric pushrods, 18 fixed blocks, 19 second electric pushrods, 20 link blocks, 21 fixed frames, 22 third electric pushrods, 23
Pulley, 24 movable blocks, 25 second slide bars, 26 second sliding sleeves, 27 slot knives, 28 springs, 29 supporting legs, 30 friction pads, 31 first are prevented
Skidding, 32 second non-slip mats, 33 power supplys, 34 switches.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1-3, the utility model provides a kind of technical solution: a kind of inner wall of the pipe ring groove processing device, including
Support plate 1, the lower surface of support plate 1 are fixedly connected with the upper surface of four supporting legs 29, and four supporting legs 29 are located at
1 lower surface of support plate can be supported support plate 1 close to the position of quadrangle by setting supporting leg 29, can be better
Staff is set to carry out fluting work to tubing, the lower surface of supporting leg 29 is fixedly connected with the upper surface of friction pad 30, friction
The diameter of pad 30 is identical as the diameter of 29 lower surface of supporting leg, by the way that friction pad 30 is arranged, can increase supporting leg 29 and ground
Frictional force, so as to which preferably support plate 1 is fixed, the lower surface of the upper surface of support plate 1 and the first fixed plate 2
It is fixedly connected, the right side of the first fixed plate 2 is fixedly connected with the fuselage of motor 3, by the way that motor 3, the model of motor 3 is arranged
Y80-2, motor 3 work when motor 3 output shaft can make mounting plate 4 rotate, so as to so that tubing rotate, motor 3 it is defeated
Shaft is fixedly connected with the left side of mounting plate 4, and the output shaft of motor 3 is located at the center of 4 left side of mounting plate, mounting plate 4
Lower surface and the upper surfaces of two idler wheels 5 overlap, and two idler wheels 5 are symmetricly set on the front and rear sides of motor 3, pass through setting
Idler wheel 5 can be supported mounting plate 4 using idler wheel 5, and mounting plate 4 can be made preferably tubing to be driven to be rotated, and install
The right side of plate 4 is fixedly connected with the left side of the first loading plate 6 and the second loading plate 7, and the first loading plate 6 is located at the second carrying
The surface of plate 7, the upper surface of the first loading plate 6 are connected with nut 8, and 8 internal screw thread of nut is connected with bolt 9, the bottom end of bolt 9
It is fixedly connected with the upper surface of clamping plate 10, by setting nut 8 and bolt 9, folder is controlled when bolt 9 rotates in nut 8
The movement of tight plate 10, so as to preferably be clamped fixation, the opposite face point of clamping plate 10 and the second loading plate 7 to tubing
Be not fixedly connected with the first non-slip mat 31 and the second non-slip mat 32, the first non-slip mat 31 and the second non-slip mat 32 it is of same size,
By the first non-slip mat 31 of setting and the second non-slip mat 32, preferably tubing can be fixed, thus can using slot knife 27
Preferably to carry out fluting work, position of 1 upper surface of support plate between the first fixed plate 2 and mounting plate 4 to pipe material inner wall
It installs and is equipped with power supply 33, the output end of power supply 33 is electrically connected with the input terminal of switch 34, by the way that power supply 33 is arranged, can make motor
3, the first electric pushrod 17, the second electric pushrod 19 and 22 electricity consumption of third electric pushrod work, and switch 34 is arranged first
The left side of fixed plate 2, the output end of switch 34 respectively with motor 3, the first electric pushrod 17, the second electric pushrod 19 and third
The input terminal of electric pushrod 22 is electrically connected, and by the way that switch 34 is arranged, the model LW26-20 universal change-over switch of switch 34 can
Preferably to control the work of motor 3, the first electric pushrod 17, the second electric pushrod 19 and third electric pushrod 22.
The upper surface of support plate 1 is fixedly connected with the lower surface of sliding block 11, and sliding block 11 is located at the right side of mounting plate 4, sliding block
11 are slidably connected in the sliding slot 13 that 12 lower surface of the second fixed plate opens up, can be right using sliding block 11 by the way that sliding block 11 is arranged
Second fixed plate 12 is fixed, and is adjusted so as to the more stable position to slot knife 27, the second fixed plate 12
Left side is connected with the first sliding sleeve 14, and the first slide bar 15, the right end and connecting rod of the first slide bar 15 are socketed in the first sliding sleeve 14
16 left side is fixedly connected, and the left side of connecting rod 16 is solid by the right side of the first electric pushrod 17 and the second fixed plate 12
Fixed connection, by the way that the first electric pushrod 17 is arranged, the first electric pushrod 17 can be such that slot knife 27 moves left and right when elongating or shortening,
The position of slot knife 27 can be adjusted, the first electric pushrod 17 is located at the underface of the first slide bar 15, the upper table of support plate 1
Face is fixedly connected with the lower surface of fixed block 18, the front that the back side of fixed block 18 passes through the second electric pushrod 19 and link block 20
It is fixedly connected, by the way that the second electric pushrod 19 is arranged, the second electric pushrod 19 can control the second fixed plate when elongating or shortening
12 move left and right, and so as to more easily be fixed and dismantle to tubing, the left side of link block 20 is fixed with second
The right side of plate 12 is fixedly connected.
The left end of first slide bar 15 is fixedly connected with the right side of fixed frame 21, and the right side of 21 inner wall of fixed frame passes through the
Three electric pushrods 22 are fixedly connected with the right end of pulley 23, and by the way that third electric pushrod 22 is arranged, third electric pushrod 22 extends
When pulley 23 can be made to be moved to the left, so as to so that the spacing between two slot knives 27 becomes larger, be adapted in a variety of differences
What the tubing of diameter size, the opposite face overlap joint of the left end of pulley 23 and two movable blocks 24, and two movable blocks 24 were located remotely from each other
It is fixedly connected respectively with two opposite one end of the second slide bar 25 on one side, and the surface of two the second slide bars 25 is socketed with second
Sliding sleeve 26, and two the second sliding sleeves 26 are respectively engaged with the upper and lower surfaces of fixed frame 21, and two 25 phases of the second slide bar
Mutually separate one end is fixedly connected with the opposite face of two slot knives 27 respectively, and the surface of two the second slide bars 25 is socketed with bullet
Spring 28, by the way that spring 28 is arranged, when third electric pushrod 22 shortens, the elongation of spring 28 can make two slot knives 27 close to each other,
So as to take out slot knife 27 out of tubing, and the both ends of two springs 28 are respectively with the upper surface of 21 inner wall of fixed frame under
Surface is fixedly connected on one side with what two movable blocks 24 were located remotely from each other.
In use, the elongation of the second electric pushrod 19 is controlled by switch 34, so that the second electric pushrod 19 passes through link block
20 move backward the second fixed plate 12, so as to so that the first slide bar 15 drives fixed frame 21 to move backward, when fixed frame 21
It controls the second electric pushrod 19 by switch 34 when being staggered with mounting plate 4 to stop working, so that convenient install admittedly to tubing
It is fixed, tubing is placed between the first non-slip mat 31 and the second non-slip mat 32, then turning bolt 9 makes clamping plate 10 to moving down
It is dynamic, so that the first non-slip mat 31 and the second non-slip mat 32 be made to be clamped fixation to tubing, then pass through the control of switch 34 second
Electric pushrod 19 shortens, so as to so that the forward movement of the second fixed plate 12, leads to when fixed frame 21 is located at the front-right of tubing
It crosses switch 34 and controls the stopping shortening of the second electric pushrod 19, the first electric pushrod 17 is then controlled by switch 34 and is shortened, first
Electric pushrod 17 shorten when can make connecting rod 16 drive the first slide bar 15 be moved to the left in the first sliding sleeve 14, so as to so that
Two slot knives 27 are moved to the left, when the second electric pushrod 19 elongation when the first slide bar 15 can be made to move right, so as to so that
Two slot knives 27 move right, and are adjusted so as to the position to two slot knives 27, so as to more easily to tubing
Inner wall is slotted, and is then controlled third electric pushrod 22 by switch 34 and is extended, so that sliding block 11 can make two 27 phases of slot knife
It is mutually separate, motor 3 is controlled by switch 34 when two slot knives 27 are contacted with the inner wall of tubing and is worked, the output shaft of motor 3
Tubing is rotated by mounting plate 4, carries out fluting work so as to the inner wall to tubing, control third electric pushrod 22 extends
Distance, can control the spacing of two slot knives 27, the depth so as to control to annular groove controls, when two slot knives 27
Spacing third electric pushrod 22 controlled by switch 34 when reaching certain distance stop extending, pass through switch at the end of fluting
34 control motors 3 stops working, then by switch 34 control third electric pushrod 22 shortening, so as to so that pulley 23 to the right
It is mobile, so that two elongations of spring 28 keep two slot knives 27 close to each other, when the spacing of two slot knives 27 is less than the internal diameter of tubing
When by switch 34 control third electric pushrod 22 shorten, then by switch 34 control the first electric pushrod 17 extend, in slot
The first electric pushrod 17 is controlled by switch 34 when knife 27 is in outside tubing to stop working, and then passes through second electricity of the control of switch 34
Dynamic push rod 19 extends, so as to so that the second fixed plate 12 moves backward, so as to so that slot knife 27 moves backward, when can will
The second electric pushrod 19 is controlled by switch 34 when tubing is removed to stop working, then turn bolt 9 make the first non-slip mat 31 and
Second non-slip mat 32 is separate, so as to remove tubing.
Can to sum up obtain, the inner wall of the pipe ring groove processing device, by setting motor 3, mounting plate 4, bolt 9, clamping plate 10,
First electric pushrod 17, third electric pushrod 22 and slot knife 27, the output shaft of motor 3 can make 4 turns of mounting plate when motor 3 works
It is dynamic, so as to drive tubing to be rotated, so that slot knife 27 be facilitated to carry out fluting work, the first electric pushrod to pipe material inner wall
Slot knife 27 can be made to move left and right when 17 elongation, third electric pushrod 22 can make the spacing of two slot knives 27 become larger when extending,
So as to preferably slot to pipe material inner wall, the distance that control third electric pushrod 22 extends can control two slots
Spacing between knife 27 is adapted to the tubing of a variety of different inner diameters, can be to slot knife using the work of the first electric pushrod 17
27 position is adjusted, so as to preferably carry out fluting work to pipe material inner wall, so as to improve to pipe material inner wall
The processing efficiency of annular groove.
Meanwhile the inner wall of the pipe ring groove processing device can be to installation using idler wheel 5 by setting idler wheel 5 and sliding block 11
Plate 4 is supported, and mounting plate 4 can be made preferably tubing to be driven to be rotated, can be to the second fixed plate 12 using sliding block 11
It is fixed, is adjusted so as to the more stable position to slot knife 27, and the utility model is compact-sized, design is closed
Reason, it is practical.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of inner wall of the pipe ring groove processing device, including support plate (1), it is characterised in that: the upper surface of the support plate (1)
It is fixedly connected with the lower surface of the first fixed plate (2), the right side of first fixed plate (2) and the fuselage of motor (3) are fixed
Connection, the output shaft of the motor (3) are fixedly connected with the left side of mounting plate (4), and the output shaft of the motor (3) is located at peace
At the center of loading board (4) left side, the lower surface of the mounting plate (4) and the upper surface of two idler wheels (5) are overlapped, and two rollings
Wheel (5) is symmetricly set on the front and rear sides of motor (3), and right side and the first loading plate (6) and second of the mounting plate (4) are held
The left side of support plate (7) is fixedly connected, and first loading plate (6) is located at the surface of the second loading plate (7), and described first holds
The upper surface of support plate (6) is connected with nut (8), and nut (8) internal screw thread is connected with bolt (9), the bottom end of the bolt (9)
It is fixedly connected with the upper surface of clamping plate (10)；
The upper surface of the support plate (1) is fixedly connected with the lower surface of sliding block (11), and the sliding block (11) is located at mounting plate (4)
Right side, the sliding block (11) is slidably connected in sliding slot (13) that the second fixed plate (12) lower surface opens up, and described second is solid
The left side of fixed board (12) is connected with the first sliding sleeve (14), is socketed with the first slide bar (15) in first sliding sleeve (14), described
The right end of first slide bar (15) is fixedly connected with the left side of connecting rod (16), and the left side of the connecting rod (16) passes through first
Electric pushrod (17) is fixedly connected with the right side of the second fixed plate (12), and first electric pushrod (17) is located at the first slide bar
(15) upper surface of underface, the support plate (1) is fixedly connected with the lower surface of fixed block (18), the fixed block (18)
The back side be fixedly connected by the second electric pushrod (19) with the front of link block (20), the left side of the link block (20) with
The right side of second fixed plate (12) is fixedly connected；
The left end of first slide bar (15) is fixedly connected with the right side of fixed frame (21), the right side of fixed frame (21) inner wall
Side is fixedly connected by third electric pushrod (22) with the right end of pulley (23), the left end of the pulley (23) and two movements
The opposite face of block (24) overlaps, and the one side that two movable blocks (24) are located remotely from each other is opposite with two the second slide bars (25) respectively
One end is fixedly connected, and the surface of two the second slide bars (25) is socketed with the second sliding sleeve (26), and two the second sliding sleeves (26)
It is respectively engaged with the upper and lower surfaces of fixed frame (21), and one end for being located remotely from each other of two the second slide bars (25) is respectively with two
The opposite face of a slot knife (27) is fixedly connected, and the surface of two the second slide bars (25) is socketed with spring (28), and two bullets
The both ends of spring (28) be located remotely from each other respectively with the upper surface of fixed frame (21) inner wall and lower surface and two movable blocks (24) one
Face is fixedly connected.
2. a kind of inner wall of the pipe ring groove processing device according to claim 1, it is characterised in that: the support plate (1)
Lower surface is fixedly connected with the upper surface of four supporting legs (29), and four supporting legs (29) are located at support plate (1) following table
Position of the face close to quadrangle.
3. a kind of inner wall of the pipe ring groove processing device according to claim 2, it is characterised in that: the supporting leg (29)
Lower surface is fixedly connected with the upper surface of friction pad (30), and the diameter of the friction pad (30) is straight with supporting leg (29) lower surface
Diameter is identical.
4. a kind of inner wall of the pipe ring groove processing device according to claim 1, it is characterised in that: the clamping plate (10) and
The opposite face of second loading plate (7) has been respectively fixedly connected with the first non-slip mat (31) and the second non-slip mat (32), and described first is anti-
Skidding (31) and the second non-slip mat (32) it is of same size.
5. a kind of inner wall of the pipe ring groove processing device according to claim 1, it is characterised in that: on the support plate (1)
Position of the surface between the first fixed plate (2) and mounting plate (4) is provided with power supply (33), the output end of the power supply (33)
It is electrically connected with the input terminal of switch (34).
6. a kind of inner wall of the pipe ring groove processing device according to claim 5, it is characterised in that: switch (34) setting
In the left side of the first fixed plate (2), the output end of the switch (34) respectively with motor (3), the first electric pushrod (17), the
The electrical connection of the input terminal of two electric pushrods (19) and third electric pushrod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204398.0U CN208628582U (en) | 2018-07-28 | 2018-07-28 | A kind of inner wall of the pipe ring groove processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204398.0U CN208628582U (en) | 2018-07-28 | 2018-07-28 | A kind of inner wall of the pipe ring groove processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208628582U true CN208628582U (en) | 2019-03-22 |
Family
ID=65739465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821204398.0U Expired - Fee Related CN208628582U (en) | 2018-07-28 | 2018-07-28 | A kind of inner wall of the pipe ring groove processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208628582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555398A (en) * | 2018-07-28 | 2018-09-21 | 河南东润电子有限公司 | A kind of inner wall of the pipe ring groove processing device |
-
2018
- 2018-07-28 CN CN201821204398.0U patent/CN208628582U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555398A (en) * | 2018-07-28 | 2018-09-21 | 河南东润电子有限公司 | A kind of inner wall of the pipe ring groove processing device |
| CN108555398B (en) * | 2018-07-28 | 2024-09-24 | 科梦风电设备唐山有限公司 | Pipeline inner wall ring groove processingequipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20190728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |