CN107824860B - A kind of quick precision cutting equipment of construction site steel pipe - Google Patents
A kind of quick precision cutting equipment of construction site steel pipe Download PDFInfo
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- CN107824860B CN107824860B CN201711094670.4A CN201711094670A CN107824860B CN 107824860 B CN107824860 B CN 107824860B CN 201711094670 A CN201711094670 A CN 201711094670A CN 107824860 B CN107824860 B CN 107824860B
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- rotary shaft
- bracket
- workbench
- motor
- bevel gear
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Classifications
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- 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
- B23D19/00—Shearing machines or shearing devices cutting by rotary discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a kind of quick precision cutting equipments of construction site steel pipe, including bracket, workbench, dedusting mechanism, transport mechanism, cutter, the second motor and a rotary shaft；The workbench upper end is fixedly installed with bracket, is provided with the second motor on the right side of bracket, the output end of the second motor is fixedly connected with the second rotary shaft；The threaded rod lower end and the first rotary shaft are rotatablely connected, and are fixedly installed with cutter in the first rotary shaft；Transport mechanism is provided on the right side of the workbench, transport mechanism includes transmission wheel, bevel gear A, bevel gear B and first motor；The pedestal upper end is additionally provided with dust collection mechanism, and dust collection mechanism includes gas-guide tube, suction ventilator, magnetic capture slot and dust hood.Present invention design is novel, and structure is simple, greatly improves steel pipe cutting efficiency, while improving the accuracy of cutting, increases cutting effect, can be collected to iron filings in cutting process, effectively avoid environmental pollution.
Description
Technical field
The present invention relates to building field, specifically a kind of quick precision cutting equipment of construction site steel pipe.
Background technique
Steel pipe is not hard, perishable because having quality, and high temperature resistant, high voltage bearing advantage, can use in a variety of environment,
Cutting process is generally required when steel pipe is processed into target pipe fitting, mostly uses greatly utilize electric saw or the progress of other cutting tools at present
Artificial cutting, when using artificial cutting, the labor intensity for cutting personnel is very big, causes cutting efficiency low, in addition, artificial cutting is very
It is difficult to guarantee cut quality, steel pipe is easy to cause to scrap, increases the processing cost of pipe fitting, other cutting equipment machinery degree are low,
Lack a kind of fixed device, the low efficiency of cutting when pipe cutting.
Existing steel pipe cutting device is cut still through manual push steel pipe, so as to cause cutting out-of-flatness, is cut
It cuts low efficiency and is easy to damage operator, there are some potential safety problems, existing device does not have dedusting function,
A large amount of iron filings dust is generated in cutting process, each corner in air or flown to construction site is floated, to environment
Very big pollution is caused, the physical and mental health of construction personnel can be also seriously affected, while causing a large amount of cleaning.
Summary of the invention
The purpose of the present invention is to provide a kind of quick precision cutting equipments of construction site steel pipe, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of quick precision cutting equipment of construction site steel pipe, including bracket, workbench, dust collection mechanism, transport mechanism, cut
Cutter, the second motor and the first rotary shaft；The workbench upper end is fixedly installed with bracket, and the second electricity is provided on the right side of bracket
Machine, the output end of the second motor are fixedly connected with the second rotary shaft, and the second rotary shaft runs through right side bracket, solid with driving gear B
Fixed connection；The lower end the driving gear B is engaged with driven gear A, and driven gear A is arranged by shaft with its left end incomplete
Bevel gear is fixedly connected, and incomplete bevel gear upper and lower ends are symmetrically arranged with bevel gear C, and bevel gear C is set on screw shell
And be fixedly connected with screw shell, screw shell upper end is connect with holder pivots；The threaded rod lower end and the first rotary shaft turn
Dynamic connection is fixedly installed with cutter in the first rotary shaft, is provided with screw shell about the symmetrical position of cutter flexible
The upper end of bar, telescopic rod is fixedly connected with bracket, and the lower end of telescopic rod and the first rotary shaft are rotatablely connected；First rotary shaft
Right end through right side bracket on through slot and be fixedly connected with driven gear B, the upper end driven gear B is engaged with driven gear
C, driven gear C are engaged with driving gear A, and driving gear A is fixedly mounted in the second rotary shaft；First rotary shaft is most
Right end is rotatably connected to sleeve, and sleeve is equally rotatably connected on driven gear C, sleeve, phase are fixedly installed on the second motor
It is hinged by connecting rod between adjacent sleeve；Transport mechanism is provided on the right side of the workbench, transport mechanism is symmetricly set on
On workbench, transport mechanism includes transmission wheel, bevel gear A, bevel gear B and first motor；Second is provided on the workbench
Rectangular channel and the first rectangular channel, the first rectangular channel lower end are provided with stock guide, are provided with collecting tank on the right side of stock guide；The branch
Frame upper end is additionally provided with dust collection mechanism, and dust collection mechanism includes gas-guide tube, suction ventilator, magnetic capture slot and dust hood, magnetic capture
Slot is arranged in pedestal upper end, and the left and right ends of magnetic capture slot are symmetrically arranged with suction ventilator, and suction ventilator passes through with magnetic capture slot
Gas-guide tube connection, the other end of gas-guide tube are protruded on the inside of bracket and are connected to dust hood.
As a further solution of the present invention: the screw shell lower end is set on threaded rod, and with threaded rod screw thread
Connection.
As further scheme of the invention: the sleeve only carries out being rotatablely connected but can not controlling with the first rotary shaft
It is mobile.
As further scheme of the invention: the first motor is arranged inside workbench, the output of first motor
End is fixedly connected with bevel gear B, and the upper end of bevel gear B is engaged with bevel gear A, and the shaft of bevel gear A is fixedly connected with transmission wheel.
As further scheme of the invention: the workbench lower end is also symmetrically installed with supporting leg.
As further scheme of the invention: the dust hood is obliquely installed, and is open towards cutter.
Compared with prior art, the beneficial effects of the present invention are: the present invention drives cutter in the second motor by setting
There is moving up and down for achievable cutter while rotation, it is convenient and efficient, cutting efficiency is improved, by the graduated scale of setting,
The accuracy of cutting is improved, the transport mechanism of setting can convey steel tube clamping, avoid hand-held the drawbacks of conveying, Jin Erti
The high accuracy of cutting, the iron filings generated in cutting process can be absorbed, iron filings is prevented to be scattered by the dust collection mechanism of setting,
It is difficult to handle, and pollutes environment.In conclusion present invention design is novel, structure is simple, greatly improves steel pipe cutting efficiency,
The accuracy for improving cutting simultaneously, increases cutting effect, can be collected to iron filings in cutting process, effectively avoid
Environmental pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the quick precision cutting equipment of construction site steel pipe.
Fig. 2 is the top view of workbench in the quick precision cutting equipment of construction site steel pipe.
Fig. 3 is the side view of driving gear in the quick precision cutting equipment of construction site steel pipe.
Fig. 4 is the schematic enlarged-scale view in the quick precision cutting equipment of construction site steel pipe at A.
In figure: 1- bracket, 2- gas-guide tube, 3- suction ventilator, 4- magnetic capture slot, 5- telescopic rod, the first rotary shaft of 6-, 7- inhale
Dust hood, 8- workbench, 9- graduated scale, 10- supporting leg, 11- guide plate, 12- collecting tank, 13- transmission wheel, 14- bevel gear A, 15- bore tooth
Take turns B, 16- first motor, the second motor of 17-, the second rotary shaft of 18- driving gear A, 19- driving gear B, 20-, 21- cutting
Knife, 22- threaded rod, 23- bevel gear C, 24- screw shell, the incomplete bevel gear of 25-, 26- driven gear A, 27- driven gear
B, 28- driven gear C, 29- sleeve, 30- connecting rod, the first rectangular channel of 31-, the second rectangular channel of 32-.
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.It 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.
Please refer to Fig. 1-4, a kind of quick precision cutting equipment of construction site steel pipe, including bracket 1, workbench 8, vacuum cleaner
Structure, transport mechanism, cutter 21, the second motor 17 and the first rotary shaft 6；8 upper end of workbench is fixedly installed with bracket 1,
The second motor 17 is provided on the right side of bracket 1, the output end of the second motor 17 is fixedly connected with the second rotary shaft 20, the second rotary shaft
20 run through right side bracket 1, are fixedly connected with driving gear B19, and the second motor 17 drives driving gear by the second rotary shaft 20
B19 rotation；The lower end the driving gear B19 is engaged with driven gear A26, and driven gear A26 is arranged by shaft and its left end
Incomplete bevel gear 25 be fixedly connected, incomplete 25 upper and lower ends of bevel gear are symmetrically arranged with bevel gear C23, bevel gear C23
It is set on screw shell 24 and is fixedly connected with screw shell 24,24 upper end of screw shell and bracket 1 are rotatablely connected, driving tooth
It takes turns B19 and drives driven gear A26 rotation, driven gear A26 drives incomplete bevel gear 25 to rotate, and incomplete bevel gear 25 has
Teeth portion position rotates screw shell 24 when engaging with the bevel gear C23 of upper end, when incomplete bevel gear 25 continues to rotate Shi Qiyou
Bevel gear C23 of the teeth portion position far from upper end and while engaging with the bevel gear C23 of lower end, invert screw shell 24, to realize spiral shell
The positive and negative rotation of line sleeve 24；24 lower end of screw shell is set on threaded rod 22, and is threadedly coupled with threaded rod 22, screw thread
Move up and down threaded rod 22 when 24 positive and negative rotation of sleeve；22 lower end of threaded rod and the first rotary shaft 6 are rotatablely connected, the first rotation
Be fixedly installed with cutter 21 in shaft 6, drive cutter 21 to rotate when the first rotary shaft 6 rotates, cutter 21 to steel pipe into
Row cutting is provided with telescopic rod 5 about the symmetrical position of cutter 21 with screw shell 24, and the upper end of telescopic rod 5 and bracket 1 are solid
Fixed connection, the lower end of telescopic rod 5 and the first rotary shaft 6 are rotatablely connected；The right end of first rotary shaft 6 runs through the bracket on right side
It through slot on 1 and is fixedly connected with driven gear B27, the upper end driven gear B27 is engaged with driven gear C28, driven gear C28
It is engaged with driving gear A18, driving gear A18 is fixedly mounted in the second rotary shaft 20, and the second rotary shaft 20 passes through driving tooth
It takes turns A18 and drives driven gear C28 rotation, driven gear C28 passes through the driven gear B27 being engaged with and drives the first rotary shaft 6
Rotation；The right end of first rotary shaft 6 is rotatably connected to sleeve 29, and sleeve 29 and the first rotary shaft 6 only carry out rotation company
It connects but can not move left and right, sleeve 29 is equally rotatably connected on driven gear C28, is fixedly installed with sleeve on the second motor 17
29, it is hinged by connecting rod 30 between adjacent sleeve 29.
The right side of the workbench 8 is provided with transport mechanism, and transport mechanism is symmetricly set on workbench 8, transport mechanism
Including transmission wheel 13, bevel gear A14, bevel gear B15 and first motor 16, first motor 16 is arranged inside workbench 8, and first
The output end of motor 16 is fixedly connected with bevel gear B15, and the upper end of bevel gear B15 is engaged with bevel gear A14, bevel gear A14's
Shaft is fixedly connected with transmission wheel 13, and first motor 16 makes to pass when rotating by the engagement of bevel gear A14 and bevel gear B15
Send wheel 13 rotation, transmission wheel 13 conveys steel pipe to the left；The second rectangular channel 32 and the first rectangular channel are provided on the workbench 8
31,31 lower end of the first rectangular channel is provided with stock guide 11, and the right side of stock guide 11 is provided with collecting tank 12, and the steel pipe after cutting is logical
It crosses stock guide and falls into collection in collecting tank 12, it is convenient and efficient；Graduated scale 9, graduated scale 9 are provided on the left of 8 front end of workbench
Facilitate operator to observe, improves the accuracy of cutting；8 lower end of workbench is also symmetrically installed with supporting leg 10, and supporting leg 10 rises
To supporting role；1 upper end of bracket is additionally provided with dust collection mechanism, and dust collection mechanism includes gas-guide tube 2, suction ventilator 3, magnetic capture
Slot 4 and dust hood 7, magnetic capture slot 4 are arranged in 1 upper end of bracket, and the left and right ends of magnetic capture slot 4 are symmetrically arranged with suction ventilator
3, suction ventilator 3 and magnetic capture slot 4 are connected to by gas-guide tube 2, the other end of gas-guide tube 2 protrude into 1 inside of bracket and with dust hood 7
Connection, dust hood 7 is obliquely installed, and opening generates towards cutter 21, when suction ventilator 3 works suction and will generate in cutting process
Iron filings are sucked in magnetic capture slot 4 by dust hood 7, are prevented iron filings to be scattered and are difficult to handle, lead to environmental pollution.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of quick precision cutting equipment of construction site steel pipe, including bracket (1), workbench (8), dust collection mechanism, conveyer
Structure, cutter (21), the second motor (17) and the first rotary shaft (6)；It is characterized in that, the fixed peace in workbench (8) upper end
Equipped with bracket (1), it is provided with the second motor (17) on the right side of bracket (1), the output end and the second rotary shaft of the second motor (17)
(20) it is fixedly connected, the second rotary shaft (20) runs through right side bracket (1), is fixedly connected with driving gear B(19)；The driving tooth
Wheel B(19) lower end is engaged with driven gear A(26), driven gear A(26) pass through the incomplete cone tooth of shaft and the setting of its left end
Wheel (25) is fixedly connected, and incomplete bevel gear (25) upper and lower ends are symmetrically arranged with bevel gear C(23), bevel gear C(23) it is arranged
It is fixedly connected on screw shell (24) and with screw shell (24), screw shell (24) upper end and bracket (1) are rotatablely connected；Institute
It states screw shell (24) lower end to be set on threaded rod (22), and is threadedly coupled with threaded rod (22)；Under the threaded rod (22)
End is rotatablely connected with the first rotary shaft (6), cutter (21) is fixedly installed in the first rotary shaft (6), with screw shell (24)
It is provided with telescopic rod (5) about the symmetrical position of cutter (21), the upper end of telescopic rod (5) is fixedly connected with bracket (1), is stretched
The lower end and the first rotary shaft (6) of bar (5) are rotatablely connected；The right end of first rotary shaft (6) is on the bracket (1) on right side
Through slot and be fixedly connected with driven gear B(27), driven gear B(27) upper end is engaged with driven gear C(28), driven gear
C(28) engaged with driving gear A(18), driving gear A(18) it is fixedly mounted on the second rotary shaft (20)；First rotation
The right end of axis (6) is rotatably connected to sleeve (29), driven gear C(28) on be equally rotatably connected to sleeve (29), second electricity
It is fixedly installed on machine (17) sleeve (29), it is hinged by connecting rod (30) between adjacent sleeve (29)；The workbench (8)
Right side be provided with transport mechanism, transport mechanism is symmetricly set on workbench (8), transport mechanism include transmission wheel (13), cone
Gear A (14), bevel gear B(15) and first motor (16)；First motor (16) setting is internal in workbench (8), and first
The output end of motor (16) is fixedly connected with bevel gear B(15), bevel gear B(15) upper end be engaged with bevel gear A(14), bore tooth
Wheel A(14) shaft be fixedly connected with transmission wheel (13)；The second rectangular channel (32) and the first square are provided on the workbench (8)
Shape slot (31), the first rectangular channel (31) lower end are provided with stock guide (11), and collecting tank (12) are provided on the right side of stock guide (11)；
Bracket (1) upper end is additionally provided with dust collection mechanism, and dust collection mechanism includes gas-guide tube (2), suction ventilator (3), magnetic capture slot (4)
With dust hood (7), magnetic capture slot (4) is arranged in bracket (1) upper end, and the left and right ends of magnetic capture slot (4) are symmetrically arranged with
Suction ventilator (3), suction ventilator (3) are connected to magnetic capture slot (4) by gas-guide tube (2), and the other end of gas-guide tube (2) protrudes into bracket
(1) it is connected on the inside of and with dust hood (7).
2. steel pipe quick precision cutting equipment in construction site according to claim 1, which is characterized in that the sleeve (29)
It only carries out being rotatablely connected but can not moving left and right with the first rotary shaft (6).
3. steel pipe quick precision cutting equipment in construction site according to claim 1, which is characterized in that the workbench
(8) lower end is also symmetrically installed with supporting leg (10).
4. steel pipe quick precision cutting equipment in construction site according to claim 1, which is characterized in that the dust hood
(7) it is obliquely installed, and is open towards cutter (21).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127467.5A CN109877373B (en) | 2017-11-09 | 2017-11-09 | Quick accurate cutting device of building site steel pipe |
| CN201711094670.4A CN107824860B (en) | 2017-11-09 | 2017-11-09 | A kind of quick precision cutting equipment of construction site steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094670.4A CN107824860B (en) | 2017-11-09 | 2017-11-09 | A kind of quick precision cutting equipment of construction site steel pipe |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910127467.5A Division CN109877373B (en) | 2017-11-09 | 2017-11-09 | Quick accurate cutting device of building site steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107824860A CN107824860A (en) | 2018-03-23 |
| CN107824860B true CN107824860B (en) | 2019-04-05 |
Family
ID=61654970
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910127467.5A Expired - Fee Related CN109877373B (en) | 2017-11-09 | 2017-11-09 | Quick accurate cutting device of building site steel pipe |
| CN201711094670.4A Active CN107824860B (en) | 2017-11-09 | 2017-11-09 | A kind of quick precision cutting equipment of construction site steel pipe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910127467.5A Expired - Fee Related CN109877373B (en) | 2017-11-09 | 2017-11-09 | Quick accurate cutting device of building site steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109877373B (en) |
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| CN108668649B (en) * | 2018-05-22 | 2021-06-08 | 湖南湘耀农业有限公司 | Agricultural forage grass cutting device with automatic feeding function |
| CN108500636B (en) * | 2018-06-07 | 2023-07-28 | 马鞍山市飞达波纹管制造有限公司 | Leveling strip cutting mechanism for metal hose weaving strip |
| CN108818119A (en) * | 2018-06-28 | 2018-11-16 | 芜湖泰和管业股份有限公司 | A kind of gas bellows cutter device with dust-absorbing function |
| CN108966871B (en) * | 2018-07-04 | 2021-05-11 | 灵武市同心农业综合开发有限公司 | Automatic forage feeding and cutting integrated device |
| CN109203013A (en) * | 2018-07-11 | 2019-01-15 | 盐城康鼎机械有限公司 | A kind of biomass high molecular material cutting equipment |
| CN108942376A (en) * | 2018-07-19 | 2018-12-07 | 湖州德宇机械科技有限公司 | Dust-extraction unit is used in a kind of cutting of Hardware fitting |
| CN108941735A (en) * | 2018-08-16 | 2018-12-07 | 苏州荔记得机械工程科技有限公司 | A kind of engineering apparatus slide calliper rule production and processing metal scale stature material cutter device |
| CN109048454A (en) * | 2018-08-30 | 2018-12-21 | 安徽京冠派克流体科技有限公司 | Cutting equipment is used in a kind of processing of cleaning pipette tips metal connecting piece |
| CN108994370A (en) * | 2018-09-20 | 2018-12-14 | 佛山市明宏机械设备有限公司 | A kind of aluminum profile fully automatic cutting machine |
| CN109079226A (en) * | 2018-09-20 | 2018-12-25 | 杭州桥福科技有限公司 | Cutter automatic control device based on GE PLC |
| CN108890024A (en) * | 2018-09-25 | 2018-11-27 | 张连军 | A kind of equidistant cutter device of steel pipe for building |
| CN109513855A (en) * | 2018-12-12 | 2019-03-26 | 淮南泰隆机械制造有限公司 | A kind of anchor pole reinforcing bar automatic cutoff device |
| CN109365896A (en) * | 2018-12-17 | 2019-02-22 | 宁波帮手机器人有限公司 | A kind of automation plate cutting device |
| CN111940897B (en) * | 2019-05-15 | 2022-06-03 | 枣庄科技职业学院 | Mechatronic laser cutting device |
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| CN111822772B (en) * | 2020-04-17 | 2021-10-22 | 烟台汽车工程职业学院 | Dust collection device for machining |
| CN112296427B (en) * | 2020-11-06 | 2023-02-28 | 武汉鸿康科技有限公司 | Dust collector is used in cutting of new energy automobile accessories |
| CN112872459A (en) * | 2021-01-25 | 2021-06-01 | 施建华 | Steel pipe distance anti-false-touch automatic cutting device |
| CN112846363B (en) * | 2021-02-01 | 2022-12-20 | 江西经匠建设有限公司 | Cutting device with adjustable green building is used |
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| CN107270351A (en) * | 2017-07-27 | 2017-10-20 | 佛山市正略信息科技有限公司 | A kind of movable cooker hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109877373B (en) | 2020-04-24 |
| CN109877373A (en) | 2019-06-14 |
| CN107824860A (en) | 2018-03-23 |
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Address after: 528400 Room 1403, No. 2, No. 3 Zhongshan Road, East District, Zhongshan City, Guangdong Province Patentee after: Sheng Er Construction Group Co., Ltd. Address before: 528400 Room 1403, No. 2, No. 3 Zhongshan Road, East District, Zhongshan City, Guangdong Province Patentee before: Guangdong Sheng Er Construction Co., Ltd. |
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