CN107866847A - A kind of improved portable cutter device - Google Patents
A kind of improved portable cutter device Download PDFInfo
- Publication number
- CN107866847A CN107866847A CN201710397359.0A CN201710397359A CN107866847A CN 107866847 A CN107866847 A CN 107866847A CN 201710397359 A CN201710397359 A CN 201710397359A CN 107866847 A CN107866847 A CN 107866847A
- Authority
- CN
- China
- Prior art keywords
- sliding
- groove
- electric machine
- rotary electric
- gangbar
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
- B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/22—Safety devices specially adapted for cutting machines
- B26D7/24—Safety devices specially adapted for cutting machines arranged to disable the operating means for the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Sawing (AREA)
Abstract
A kind of improved portable cutter device,Including body and circular cutting sheet,Body upper surface left and right ends are fixedly installed handle frame,Holding rod is fixedly installed between two handle frames,Longitudinal sliding slot is provided with each handle frame inner side end,It can slide up and down in sliding groove longitudinally in each and sliding shoe is installed,Lifting rod and gangbar are installed between two sliding shoes,Sliding cavity is provided with body,Sliding cavity upper end wall is provided with through hole at center,It can slide up and down in sliding cavity and sliding panel is installed,Through hole, which can slide up and down to, is provided with central shaft,Central shaft lower end is fixedly connected with sliding panel,Upper end is fixedly connected with gangbar,It is symmetrically arranged with mounting groove two side and slides laterally groove,Vertical communication groove is symmetrically set with sliding cavity lower end wall,Vertical communication groove is provided with the cross connection groove connected between groove with sliding laterally,Telescopic block can be slidingly provided with by sliding laterally in groove.
Description
Technical field
The present invention relates to cutting technique field, and in particular to a kind of improved portable cutter device.
Background technology
Many electric tools can be used in the fields such as production and processing, construction and decoration, and in electric tool, cutting equipment
It is one of common electric tool, cutting equipment is used for the excision forming to material, used for convenience, cutting equipment has hand-held
Formula and portable, and both equipment can rotate directly cutting blade when starting motor, if unexpected open is driven
Dynamic motor easily damages to workmen, and after cutting, cutting blade can be rotated further one due to effect of inertia
Very big potential safety hazard be present in section time, therefore, above-mentioned cutting equipment.
The content of the invention
It is an object of the invention to provide a kind of improved portable cutter device, and the above-mentioned of prior art can be overcome to lack
Fall into.
According to the present invention, a kind of improved portable cutter device of apparatus of the present invention, including body and circular cutting sheet,
Body upper surface left and right ends are fixedly installed handle frame, and holding rod, each handle are fixedly installed between two handle frames
Longitudinal sliding slot is provided with frame inner side end, can slide up and down in sliding groove longitudinally in each and sliding shoe is installed, two cunnings
Be installed with lifting rod and gangbar between motion block, the lifting rod is located above the gangbar, on the body in set
Sliding cavity is equipped with, through hole is provided with the sliding cavity upper end wall center, can slide up and down in the sliding cavity and cunning is installed
Dynamic plate, the through hole, which can slide up and down to, is provided with central shaft, and the central shaft lower end is fixedly connected with the sliding panel, upper end
Be fixedly connected with the gangbar, on the body in be provided with the mounting groove that Open Side Down, the circular cutting sheet is by turning
Moving axis is installed in rotation in the mounting groove, and the rotary shaft is fixedly mounted on the drive device connection in the body,
The drive device includes reductor and the rotary electric machine with reductor input axis connection, the rotary shaft subtract with described
The output axis connection of fast machine, damping device is provided with outside the rotary electric machine, damping device includes vibration damper plate and radiating fin,
It is symmetrically arranged with the mounting groove two side and slides laterally groove, longitudinal direction is symmetrically set with the sliding cavity lower end wall and is connected
Groove, the vertical communication groove is provided with the cross connection groove connected between groove with described slide laterally, described to slide laterally groove
In telescopic block can be slidingly installed, the vertical communication trench bottom is rotatably mounted with fixed pulley, the sliding panel
Transmission rope is installed between the telescopic block, the transmission rope bypasses the fixed pulley, and the telescopic block is described in
Friction plate is installed with the end face of circular cutting sheet.
Further technical scheme, the vibration damper plate are arranged on the bottom of the rotary electric machine and consolidated with the rotary electric machine
Even, the radiating fin is arranged on the front and rear of the rotary electric machine and is connected with the housing of the rotary electric machine, described
The bottom of radiating fin is connected with the vibration damper plate, and the front and rear of the rotary electric machine is equidistant respectively to be provided with three
The radiating fin above.
Further technical scheme, described slide laterally are installed with top pressure spring in groove, the top pressure spring and institute
State the connection of telescopic block end face outside.
Further technical scheme, the aperture of the through hole are more than the diameter of axle of place central shaft.
Further technical scheme, clearance space is formed between the lifting rod and gangbar.
The beneficial effects of the invention are as follows：
1. apparatus of the present invention, in original state, telescopic block is made friction plate in the presence of top pressure spring to inner side top pressure
It is connected with circular cutting sheet, so as to which in accidental activation rotary electric machine, friction plate can prevent the quick rotation of circular cutting sheet, by
This, can be avoided that contingency occurs；
2. because medianly zygomorphic friction plate acts on circular cutting sheet, circular cutting sheet uniform force can be made；
3. when using apparatus of the present invention, due to forming clearance space between lifting rod and gangbar, so as to allow operator's
Hand pulls up lifting rod through clearance space；
4. when lifting rod is with respect to holding rod upward sliding, sliding shoe upward sliding can be driven, so as to which gangbar can drive central shaft
Telescopic block can be pulled by transmission rope and sliding panel moves up, during sliding panel upward sliding away from circular cutting sheet, so as to
Depart from friction plate to be bonded with circular cutting sheet and allow the rotation of circular cutting sheet to cut material；
5. after the completion of cutting, stop operating and motor and unclamp lifting rod, telescopic block is in the presence of top pressure spring by medial roof
Press and friction plate is connected with circular cutting sheet, so as to make circular cutting sheet fast braking；
6. due to needing to lift handle frame during cutting material, therefore, the lifting rod in apparatus of the present invention is using very
Convenient, apparatus of the present invention are simple in construction, easy to use, safe, substantially reduce potential safety hazard.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical scheme of the prior art
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are only to invent
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the overall structure diagram of the portable cutter device of a modification of the present invention type.
Structural representation when Fig. 2 is the cutting material of the portable cutter device of a modification of the present invention type.
Fig. 3 is the upward view of the portable cutter device of a modification of the present invention type.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
As Figure 1-3, the portable cutter device of a modification of the present invention type, including body 1 and circular cutting sheet 51,
The upper surface left and right ends of body 1 are fixedly installed handle frame 2, are fixedly installed holding rod 21 between two handle frames 2, each
Longitudinal sliding slot 22 is provided with the inner side end of handle frame 2, can slide up and down in sliding groove 22 longitudinally in each and slip is installed
Block 23, lifting rod 24 and gangbar 25 is installed between two sliding shoes 23, the lifting rod 24 is located at the gangbar
25 tops, on the body 1 in be provided with sliding cavity 11, be provided with through hole 10 at the upper end wall center of sliding cavity 11, it is described
It can slide up and down in sliding cavity 11 and sliding panel 28 is installed, the through hole 10, which can slide up and down to, is provided with central shaft 27, institute
The lower end of central shaft 27 is stated to be fixedly connected with the sliding panel 28, upper end is fixedly connected with the gangbar 25, on the body 1 in
The mounting groove 15 that Open Side Down is provided with, the circular cutting sheet 51 is installed in rotation on the mounting groove by rotary shaft 52
In 15, the rotary shaft 52 is fixedly mounted on the drive device connection in the body 1, and the drive device includes reductor 53
And the rotary electric machine 54 with the reductor 53 input axis connection, the rotary shaft 52 and the output shaft of the reductor 53 connect
Connect, damping device is provided with outside the rotary electric machine 54, damping device includes vibration damper plate 541 and radiating fin 542, the peace
It is symmetrically arranged with the two side of tankage 15 and slides laterally groove 14, longitudinal direction is symmetrically set with the lower end wall of sliding cavity 11 and is connected
Groove 12, the vertical communication groove 12 are provided with the cross connection groove 13 connected, the horizontal stroke between groove 14 with described slide laterally
Telescopic block 31 can be slidingly installed into sliding groove 14, the bottom of vertical communication groove 12, which is rotatably mounted with, determines cunning
Wheel 34, transmission rope 35 is installed between the sliding panel 28 and the telescopic block 31, the transmission rope 35 is around described fixed
Pulley 34, the telescopic block 31 is towards being installed with friction plate 32 on the end face of the circular cutting sheet 51.
Valuably, the vibration damper plate 541 is arranged on the bottom of the rotary electric machine 54 and is connected with the rotary electric machine 54,
The radiating fin 542 is arranged on the front and rear of the rotary electric machine 54 and is connected with the housing of the rotary electric machine 54,
The bottom of the radiating fin 542 is connected with the vibration damper plate 541, and the front and rear of the rotary electric machine 54 is equidistant respectively
From the radiating fin 542 for being provided with more than three, the radiating fin 542 is absorbing and distribute the rotary electric machine 54
Caused heat in the process of running, the vibration damper plate 541 are caused in the process of running to resist the rotary electric machine 54
Vibration force is so as to preventing that the rotary electric machine 54 in the process of running cross and influence the normal operation of the present apparatus by caused vibration force.
Valuably, described slide laterally is installed with top pressure spring 14 in groove 14, and the top pressure spring 14 is stretched with described
The end face outside of contracting block 31 connects, and the top pressure spring 14 is the telescopic block 31 to be biased simultaneously towards the circular cutting sheet 51
It is tensioned the transmission rope 35.
Valuably, the aperture of the through hole 10 is more than the diameter of axle of place central shaft 27, so as to which the central shaft 27 can be in institute
State and freely moved up and down in through hole 10.
Valuably, clearance space 26 is formed between the lifting rod 24 and gangbar 25, between allowing hand described in
Gap space 26 and the lifting rod 24 is pulled up.
During original state, the telescopic block 31 is made the friction plate in the presence of top pressure spring 14 to inner side top pressure
32 are connected with the circular cutting sheet 51, and the sliding panel 28 transmission rope 35 tension lower slider to the sliding cavity
11 bottoms, the sliding shoe 23 make institute in the linkage effect lower slider of the central shaft 27 to the bottom of longitudinal sliding slot 22
Lifting rod 24 is stated to be spaced with the holding rod 21；
In use, due to forming clearance space 26 between the lifting rod 24 and gangbar 25, therefore, between hand can be made described in
Gap space 26 and the lifting rod 24 is pulled up and is bonded with the holding rod, in the relatively described holding rod 21 of the lifting rod 24
During upward sliding, the upward sliding of sliding shoe 23 can be driven, so as to the gangbar 25 can drive the central shaft 27 and
Sliding panel 28 moves up, and by the transmission rope 35 telescopic block 31 can be pulled remote during 28 upward sliding of sliding panel
The circular cutting sheet 51, it is bonded so that the friction plate 32 departs from the circular cutting sheet 51, now described in startup
Rotary electric machine 54, the rotary electric machine 54 can drive the rotary shaft 52 to rotate, so as to drive the circular cutting sheet 51 to rotate
And cutting operation is carried out to material, and after the completion of cutting, stop the rotary electric machine 54 and unclamp the lifting rod 24, it is described flexible
Block 31 is made the friction plate 32 be connected with the circular cutting sheet 51 in the presence of top pressure spring 14 to inner side top pressure, from
And the fast braking of circular cutting sheet 51 can be made.
The beneficial effects of the invention are as follows：Apparatus of the present invention are in original state, telescopic block quilt in the presence of top pressure spring
Friction plate is set to be connected with circular cutting sheet to inner side top pressure, so as to which in accidental activation rotary electric machine, friction plate can prevent from justifying
The quick rotation of shape cutting sheet, it thus, can avoid that contingency occurs；
Because medianly zygomorphic friction plate acts on circular cutting sheet, circular cutting sheet uniform force can be made；
When using apparatus of the present invention, due to forming clearance space between lifting rod and gangbar, so as to allow the hand of operator
Lifting rod is pulled up through clearance space；
Lifting rod with respect to holding rod upward sliding when, sliding shoe upward sliding can be driven, so as to gangbar can drive central shaft with
Telescopic block can be pulled by transmission rope and sliding panel moves up, during sliding panel upward sliding away from circular cutting sheet, so that
Friction plate, which departs from, to be bonded with circular cutting sheet and allows the rotation of circular cutting sheet to cut material；
After the completion of cutting, stop operating and motor and unclamp lifting rod, telescopic block is in the presence of top pressure spring by inner side top pressure
And friction plate is connected with circular cutting sheet, so as to make circular cutting sheet fast braking；
Due to needing to lift handle frame during cutting material, therefore, the lifting rod use in apparatus of the present invention is very square
Just, apparatus of the present invention are simple in construction, easy to use, safe, substantially reduce potential safety hazard.
Embodiment described above, only inventing, but invent protection domain be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection domain of invention.Therefore, the protection domain of invention
It should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of improved portable cutter device, including body and circular cutting sheet, it is characterised in that：The body upper surface
Left and right ends are fixedly installed handle frame, and holding rod is fixedly installed between two handle frames, is set in each handle frame inner side end
Longitudinal sliding slot is equipped with, can slide up and down in sliding groove longitudinally in each and sliding shoe is installed, fixed peace between two sliding shoes
Equipped with lifting rod and gangbar, the lifting rod is located above gangbar, on the body in be provided with sliding cavity, the slip
Through hole is provided with chamber upper end wall center, can slide up and down in the sliding cavity and sliding panel is installed, the through hole can be upper and lower
Central shaft is slidably installed, the central shaft lower end is fixedly connected with sliding panel, and upper end is fixedly connected with gangbar, the machine
The mounting groove that Open Side Down is provided with body, the circular cutting sheet is installed in rotation on the mounting groove by rotary shaft
In, the rotary shaft be fixedly mounted in body drive device connection, the drive device include reductor and with it is described
Reductor inputs the rotary electric machine of axis connection, the output axis connection of the rotary shaft and the reductor, outside the rotary electric machine
Portion is provided with damping device, and damping device includes vibration damper plate and radiating fin, horizontal stroke is symmetrically arranged with the mounting groove two side
To sliding groove, vertical communication groove is symmetrically set with the sliding cavity lower end wall, the vertical communication groove is with sliding laterally
The cross connection groove of connection is provided between groove, described slide laterally can slidingly be provided with telescopic block in groove, described vertical
Fixed pulley is rotatably mounted with to connection trench bottom, transmission rope is installed between the sliding panel and telescopic block, it is described
Transmission rope bypasses fixed pulley, and the telescopic block is towards being installed with friction plate on the end face of the circular cutting sheet.
2. improved portable cutter device as claimed in claim 1, it is characterised in that：The vibration damper plate is arranged on described turn
The bottom of dynamic motor and be connected with the rotary electric machine, the radiating fin be arranged on the front and rear of the rotary electric machine and
It is connected with the housing of the rotary electric machine, the bottom of the radiating fin is connected with the vibration damper plate, before the rotary electric machine
Portion and the rear portion equidistant radiating fin for being provided with more than three respectively.
3. improved portable cutter device as claimed in claim 1, it is characterised in that：It is described to slide laterally fixed peace in groove
Equipped with top pressure spring, the top pressure spring is connected with the telescopic block end face outside.
4. improved portable cutter device as claimed in claim 1, it is characterised in that：The aperture of the through hole is more than place
The diameter of axle of central shaft.
5. improved portable cutter device as claimed in claim 1, it is characterised in that：Between the lifting rod and gangbar
Form clearance space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397359.0A CN107866847A (en) | 2017-05-31 | 2017-05-31 | A kind of improved portable cutter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397359.0A CN107866847A (en) | 2017-05-31 | 2017-05-31 | A kind of improved portable cutter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107866847A true CN107866847A (en) | 2018-04-03 |
Family
ID=61761499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710397359.0A Pending CN107866847A (en) | 2017-05-31 | 2017-05-31 | A kind of improved portable cutter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107866847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008939A (en) * | 2020-08-14 | 2020-12-01 | 宜兴市优力健体育用品有限公司 | Yoga mat high quality preparation production line |
| CN113714612A (en) * | 2021-09-16 | 2021-11-30 | 中建三局集团华南有限公司 | Plasma steel cutting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816875A (en) * | 1971-05-26 | 1974-06-18 | Duncan Creations Inc | Meat cutting and slicing method and apparatus |
| CN101626859A (en) * | 2007-03-16 | 2010-01-13 | 日立工机株式会社 | Bench cutter |
| EP2649882A1 (en) * | 2012-04-10 | 2013-10-16 | Fritsch GmbH | Dough separation and shaping device |
| CN204736214U (en) * | 2015-02-03 | 2015-11-04 | 彩虹（合肥）液晶玻璃有限公司 | A extension arm manipulator for under liquid crystal base plate glass high temperature environment |
| CN204935731U (en) * | 2015-09-23 | 2016-01-06 | 武平县象洞乡绿色仙草专业合作社 | The butt severing device of the careless plant of a kind of celestial being |
| CN205817973U (en) * | 2016-07-16 | 2016-12-21 | 南华摩尔农庄生物科技开发有限公司 | A kind of cutting efficiency is high, the J．sigllata Dode microtome of operation safety |
| CN205889273U (en) * | 2016-06-15 | 2017-01-18 | 重庆文客巴科技有限公司 | Safer portable cutting machine |
-
2017
- 2017-05-31 CN CN201710397359.0A patent/CN107866847A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816875A (en) * | 1971-05-26 | 1974-06-18 | Duncan Creations Inc | Meat cutting and slicing method and apparatus |
| CN101626859A (en) * | 2007-03-16 | 2010-01-13 | 日立工机株式会社 | Bench cutter |
| EP2649882A1 (en) * | 2012-04-10 | 2013-10-16 | Fritsch GmbH | Dough separation and shaping device |
| CN204736214U (en) * | 2015-02-03 | 2015-11-04 | 彩虹（合肥）液晶玻璃有限公司 | A extension arm manipulator for under liquid crystal base plate glass high temperature environment |
| CN204935731U (en) * | 2015-09-23 | 2016-01-06 | 武平县象洞乡绿色仙草专业合作社 | The butt severing device of the careless plant of a kind of celestial being |
| CN205889273U (en) * | 2016-06-15 | 2017-01-18 | 重庆文客巴科技有限公司 | Safer portable cutting machine |
| CN205817973U (en) * | 2016-07-16 | 2016-12-21 | 南华摩尔农庄生物科技开发有限公司 | A kind of cutting efficiency is high, the J．sigllata Dode microtome of operation safety |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008939A (en) * | 2020-08-14 | 2020-12-01 | 宜兴市优力健体育用品有限公司 | Yoga mat high quality preparation production line |
| CN113714612A (en) * | 2021-09-16 | 2021-11-30 | 中建三局集团华南有限公司 | Plasma steel cutting device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180403 |
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| RJ01 | Rejection of invention patent application after publication |