CN210877849U - Panel cutting device is used in board room production - Google Patents
Panel cutting device is used in board room production Download PDFInfo
- Publication number
- CN210877849U CN210877849U CN201921940686.7U CN201921940686U CN210877849U CN 210877849 U CN210877849 U CN 210877849U CN 201921940686 U CN201921940686 U CN 201921940686U CN 210877849 U CN210877849 U CN 210877849U
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- fixedly connected
- rotating shaft
- pivot
- buckle
- collection box
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Abstract
A plate cutting device for board room production comprises a circular saw, wherein two sides of the circular saw are respectively provided with a baffle plate, a first rotating shaft penetrates through the center of the circular saw, the first rotating shaft is fixedly connected with the circular saw, two ends of the first rotating shaft respectively penetrate through adjacent baffle plates, the first rotating shaft is movably connected with the baffle plates and is positioned on the left side, a first frame body is fixedly connected on the left side of the baffle plates, a first motor is fixedly connected to the bottom of the inner cavity of the first frame body, the left end of the first rotating shaft penetrates through the right side of the first frame body and is fixedly connected with the first motor, a fourth rotating shaft is driven to rotate through the power output end of a second motor, the fourth rotating shaft drives a second rotating shaft on the front side to rotate through a first driving wheel and a first belt, a second rotating shaft on the front side drives a second rotating shaft on the rear side to rotate through a second driving wheel and a second belt, so as, the board is transported to a circular saw for cutting.
Description
Technical Field
The utility model relates to a panel cutting technical field specifically is a panel cutting device is used in board room production.
Background
The portable house is one kind and uses the various steel sheet as the skeleton, uses the battenboard to be building envelope material, carries out the space with standard modulus series and closes, and the component adopts bolted connection, and the environmental protection economic type portable house of brand-new concept need cut panel when putting up the board house, nevertheless current cutting machine can produce a large amount of dust when cutting panel, has sheltered from staff's sight, brings danger for the staff, and a large amount of dust is wafted and is also can bring harm for the environment in the air moreover.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming prior art's unable defects such as collection dust, processing inconvenience, provide a panel cutting device for board house production. The plate cutting device for board room production has the characteristics of capability of collecting dust, convenience in processing and the like.
In order to achieve the above object, the utility model provides a following technical scheme: a plate cutting device for board room production comprises a circular saw, wherein baffles are arranged on two sides of the circular saw, a first rotating shaft penetrates through the center of the circular saw, the first rotating shaft is fixedly connected with the circular saw, two ends of the first rotating shaft respectively penetrate through adjacent baffles, the first rotating shaft is movably connected with the baffles, a first frame body is fixedly connected to the left side of the baffles, a first motor is fixedly connected to the bottom of the inner cavity of the first frame body, the left end of the first rotating shaft penetrates through the right side of the first frame body and is fixedly connected with the first motor, the first rotating shaft is movably connected with the first frame body, a plurality of driving rollers are arranged below the circular saw, a second rotating shaft penetrates through the centers of the driving rollers, two ends of the second rotating shaft respectively penetrate through adjacent baffles, the second rotating shaft is movably connected with the baffles, and a plurality of idler wheels are arranged on one side, opposite to the two baffles, the roller is positioned right above the adjacent transmission roller, one side of the roller, which is close to the adjacent baffle, is fixedly connected with a third rotating shaft, one end of the third rotating shaft, which is far away from the roller, penetrates through the adjacent baffle and is movably connected with the baffle, the bottom of the first frame body is fixedly connected with a second frame body, the left ends of the two second rotating shafts, which are positioned at the front side and the rear side, penetrate through the right side of the second frame body and extend to the inner cavity of the second frame body, the second rotating shaft is movably connected with the second frame body, the bottom of the inner cavity of the second frame body is fixedly connected with a second motor, the right side of the second motor is provided with a fourth rotating shaft and two first transmission wheels, the two first transmission wheels are arranged up and down, the left end of the fourth rotating shaft penetrates through the first transmission wheel positioned below and is fixedly connected with the power output end of the second motor, and the left end, the two first driving wheels are connected through a first belt in a transmission manner, the left side of the first driving wheel positioned above is provided with two second driving wheels, the two second driving wheels are arranged in a front-back manner, the left ends of the front and back second rotating shafts respectively penetrate through the two second driving wheels, the two second driving wheels are connected through a second belt in a transmission manner, a dust collection box is arranged between the two baffles and is positioned below the plurality of driving rollers, an air outlet is formed at the position, close to the bottom, of the dust collection box, a filter screen is arranged in the dust collection box and is positioned at the position, close to the bottom, of the dust collection box, a first conical gear is arranged below the filter screen, the bottom of an inner cavity of the dust collection box is fixedly connected with a bearing, a fifth rotating shaft is inserted into the top of the bearing, and the top end of the fifth rotating shaft penetrates through, the dust collection box is characterized in that the fifth rotating shaft is fixedly connected with the first bevel gear, a plurality of fan blades are fixedly connected to the outer edge of the fifth rotating shaft close to the top of the fifth rotating shaft, a second bevel gear is arranged on the left side of the first bevel gear and is meshed with the first bevel gear, and the right end of the fourth rotating shaft penetrates through the left side of the dust collection box and is fixedly connected with the second bevel gear.
Preferably, the two sides of the inner cavity of the dust collection box are fixedly connected with first fixed plates near the top, the top of the first fixed plate is fixedly connected with a connecting rod, the top of the two first fixed plates is provided with second fixed plates, the two second fixed plates are respectively and fixedly connected with the left and right sides of the filter screen, the bottom of the second fixed plate is provided with an opening, the top end of the connecting rod passes through the opening and extends to the inner cavity of the second fixed plate, the left side of the connecting rod near the top is fixedly connected with a first buckle, the left side of the inner cavity of the second fixed plate is fixedly connected with a third frame body, the top of the third frame body is provided with a first open slot, the left side of the inner cavity of the third frame body is fixedly connected with a limiting rod, a spring is sleeved outside the limiting rod, the left side of the spring is fixedly connected with the left side of the inner, the second buckle is positioned below the first buckle, and the right end of the limiting rod is inserted in the inner cavity of the sliding pipe.
Preferably, a limiting plate is fixedly connected to the left side of the inner cavity of the second fixing plate, the limiting plate is located above the third frame body, and a second notch matched with the first notch is formed in the limiting plate.
Preferably, the top of the second fixing plate is provided with a third slot matched with the first slot, one end of the top of the sliding pipe, which is close to the spring, is fixedly connected with a shifting lever, and the top end of the shifting lever sequentially penetrates through the first slot, the second slot and the third slot.
Preferably, a plurality of the fan blades are arranged around the fifth rotating shaft.
Preferably, the length of the opening is greater than the horizontal distance from the left side of the first buckle to the right side of the connecting rod.
Preferably, the horizontal distance from the right side of the second buckle to the right end of the limiting rod is greater than the horizontal distance from the left side of the first buckle.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the fourth rotating shaft is driven to rotate through the power output end of the second motor, the fourth rotating shaft drives the second rotating shaft on the front side to rotate through the first driving wheel and the first belt, the second rotating shaft on the front side drives the second rotating shaft on the rear side to rotate through the second driving wheel and the second belt, so that the driving rollers on the front side and the rear side are driven to rotate, and the plate is conveyed to the circular saw to be cut;
2. the second motor drives the second bevel gear to rotate through the fourth rotating shaft, the second bevel gear drives the first bevel gear to rotate through meshing connection, the first bevel gear drives the fan blades to rotate through the fifth rotating shaft, the fan blades drive airflow to flow downwards when rotating, the airflow drives dust generated during cutting to fall downwards into the dust collection box and accumulate on the filter screen, and the airflow flows out of the air outlet;
3. stir the driving lever, the driving lever passes through the slide pipe and drives the second buckle to the direction removal of keeping away from the filter screen, make first buckle and second buckle can not block each other, can mention the filter screen this moment, accomplish the dismantlement of filter screen, move the filter screen downwards, make connecting rod and first buckle second fixed plate inner chamber of pegging graft, first buckle promotes the second buckle and removes to the direction of keeping away from first buckle simultaneously, when first fixed plate and second fixed plate laminate, first buckle removes to second buckle top, the second buckle rebounds to first buckle below under the effect of spring, block first buckle, the installation of completion filter screen.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention
Fig. 3 is an enlarged view of a portion a in fig. 1.
Reference numbers in the figures: 1. a circular saw; 2. a first rotating shaft; 3. a roller; 4. a third rotating shaft; 5. a second rotating shaft; 6. a driving roller; 7. a first fixing plate; 8. a baffle plate; 9. a dust collection box; 10. a fan blade; 11. a fifth rotating shaft; 12. a first bevel gear; 13. a second bevel gear; 14. a filter screen; 15. a fourth rotating shaft; 16. a second motor; 17. a first drive pulley; 18. a first belt; 19. a second transmission wheel; 20. a second frame body; 21. a first motor; 22. a first frame body; 23. a second belt; 24. second fixing; 25. a connecting rod; 26. a first buckle; 27. a second buckle; 28. a slide pipe; 29. a limiting rod; 30. a third frame body; 31. a spring; 32. a limiting plate; 33. a deflector rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a plate cutting device for board room production comprises a circular saw 1, wherein two sides of the circular saw 1 are respectively provided with a baffle plate 8, a first rotating shaft 2 penetrates through the center of the circular saw 1, the first rotating shaft 2 is fixedly connected with the circular saw 1, two ends of the first rotating shaft 2 respectively penetrate through the adjacent baffle plates 8, the first rotating shaft 2 is movably connected with the baffle plates 8, a first frame body 22 is fixedly connected to the left side of the baffle plate 8 on the left side, a first motor 21 is fixedly connected to the bottom of the inner cavity of the first frame body 22, the left end of the first rotating shaft 2 penetrates through the right side of the first frame body 22 and is fixedly connected with the first motor 21, the first rotating shaft 2 is movably connected with the first frame body 22, a plurality of driving rollers 6 are arranged below the circular saw 1, a second rotating shaft 5 penetrates through the centers of the plurality of driving rollers 6, two ends of the second rotating shaft 5 respectively penetrate through the adjacent baffle plates 8, the second rotating shaft 5 is movably connected with the baffle plates, the roller 3 is positioned right above the adjacent driving roller 6, one side of the roller 3 close to the adjacent baffle 8 is fixedly connected with a third rotating shaft 4, one end of the third rotating shaft 4 far away from the roller 3 penetrates through the adjacent baffle 8 and is movably connected with the baffle 8, the bottom of a first frame body 22 is fixedly connected with a second frame body 20, the left ends of two second rotating shafts 5 positioned at the front side and the rear side penetrate through the right side of the second frame body 20 and extend to the inner cavity of the second frame body 20, the second rotating shaft 5 is movably connected with the second frame body 20, the bottom of the inner cavity of the second frame body 20 is fixedly connected with a second motor 16, the right side of the second motor 16 is provided with a fourth rotating shaft 15 and two first driving wheels 17, the two first driving wheels 17 are arranged up and down, the left end of the fourth rotating shaft 15 penetrates through the first driving wheel 17 positioned below and is fixedly connected with the power output end of the second motor 16, the left end of the second rotating, the two first driving wheels 17 are in transmission connection through a first belt 18, the left side of the first driving wheel 17 positioned above is provided with two second driving wheels 19, the two second driving wheels 19 are arranged in a front-back manner, the left ends of the front and back second rotating shafts 5 respectively penetrate through the two second driving wheels 19, the two second driving wheels 19 are in transmission connection through a second belt 23, a dust collection box 9 is arranged between the two baffles 8, the dust collection box 9 is positioned below the plurality of driving rollers 6, an air outlet is arranged at the position, close to the bottom, of the dust collection box 9, a filter screen 14 is arranged in the dust collection box 9, the filter screen 14 is positioned at the position, close to the bottom, of the dust collection box 9, the two sides, close to the top, of the inner cavity of the dust collection box 9 are fixedly connected with first fixing plates 7, the top of the first fixing plate 7 is fixedly connected with a connecting rod 25, the bottom of the second fixing plate 24 is provided with an opening, the top end of the connecting rod 25 passes through the opening and extends to the inner cavity of the second fixing plate 24, the left side of the connecting rod 25 close to the top is fixedly connected with a first buckle 26, the left side of the inner cavity of the second fixing plate 24 is fixedly connected with a third frame 30, the top of the third frame 30 is provided with a first open slot, the left side of the inner cavity of the third frame 30 is fixedly connected with a limit rod 29, the outer side of the limit rod 29 is sleeved with a spring 31, the left side of the spring 31 is fixedly connected with the left side of the inner cavity of the third frame 30, the right end of the spring 31 is fixedly connected with a slide pipe 28, the right end of the slide pipe 28 passes through the right side of the third frame 30 and is fixedly connected with a second buckle 27, the second buckle 27 is positioned below the first buckle 26, the right end of the limit rod 29 is inserted in the inner cavity of the slide pipe 28, the filter, the horizontal distance from the right side of the second buckle 27 to the right end of the limiting rod 29 is greater than the horizontal distance from the left side to the right side of the first buckle 26, so that the first buckle 26 can successfully push the second buckle 27 open and move to the position above the second buckle 27, the top of the second fixing plate 24 is provided with a third open slot matched with the first open slot, one end of the top of the sliding tube 28 close to the spring 31 is fixedly connected with a shift lever 33, the top end of the shift lever 33 sequentially passes through the first open slot, the second open slot and the third open slot, the shift lever 33 can drive the second buckle 27 to move through the sliding tube 28, the left side of the inner cavity of the second fixing plate 24 is fixedly connected with a limiting plate 32, the limiting plate 32 is positioned above the third frame 30, the limiting plate 32 is provided with a second open slot matched with the first open slot to limit the shift lever 33, so that the shift lever 33 can only, the top of bearing is pegged graft and is had fifth pivot 11, fifth pivot 11 top runs through first conical gear 12 and extends to first conical gear 12 upside, fifth pivot 11 and first conical gear 12 fixed connection, fifth pivot 11 is close to the outside edge fixedly connected with a plurality of flabellum 10 of top department, a plurality of flabellum 10 encircles the range with fifth pivot 11 as the center, the flabellum 10 drives the air current flow when rotating, first conical gear 12 left side is equipped with second conical gear 13, first conical gear 12 and second conical gear 13 intermeshing, the right-hand member of fourth pivot 15 runs through the left side of dust collection box 9 to with second conical gear 13 fixed connection.
The working principle is as follows: when the device is used, the first motor 21 and the second motor 16 are started through an external power supply, the power output end of the first motor 21 rotates to drive the first rotating shaft 2 to rotate, the first rotating shaft 2 rotates to drive the circular saw 1 to rotate, meanwhile, the power output end of the second motor 16 rotates to drive the fourth rotating shaft 15 to rotate, the fourth rotating shaft 15 drives the second rotating shaft 5 positioned on the front side to rotate through the combined action of the two first transmission wheels 17 and the first belt 18, the second rotating shaft 5 positioned on the rear side is driven to rotate through the second transmission wheel 19 and the second belt 23 when the second rotating shaft 5 positioned on the front side rotates, so that the transmission rollers 6 on the front side and the rear side are driven to rotate, the plates can move on the transmission rollers 6, when the circular saw 1 cuts the plates, the two sides of the plates are pressed through the upper roller 3, the plates cannot jump upwards, meanwhile, the second motor 16 drives the second bevel gear 13 to rotate through the fourth, the second bevel gear 13 drives the first bevel gear 12 to rotate through the connotation, the first bevel gear 12 rotates through the fan blade 10 of the fifth rotating shaft 11, the fan blade 10 rotates to drive the airflow to flow downwards, so that the dust generated by cutting falls into the dust collection box 9 along with the airflow and is accumulated on the filter screen 14, the airflow flows out through the air outlet, after the cutting is finished, the deflector rod 33 is pulled towards the direction far away from the filter screen 14, the deflector rod 33 drives the second buckle 27 to move towards the direction far away from the filter screen 14 through the sliding pipe 28, the limitation of the first buckle 26 is removed, the filter screen 14 is lifted, the disassembly of the filter screen 14 is completed, after the dust on the filter screen 14 is treated, the filter screen 14 is put into the dust collection box 9, the second fixing plate 24 is aligned with the first fixing plate 7, the filter screen 14 is moved downwards, the first buckle 26 and the connecting rod 25 are inserted into the inner cavity of the second fixing plate 24, the first buckle 26 pushes the second buckle, when the first fixing plate 7 is attached to the second fixing plate 24, the first buckle 26 moves to the upper side of the second buckle 27, the second buckle 27 rebounds to the lower side of the first buckle 26 under the action of the spring 31 to block the first buckle 26, and the filter screen 14 is mounted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a panel cutting device is used in board room production, includes circular saw (1), circular saw (1) both sides all are equipped with baffle (8), circular saw (1) center is run through there is first pivot (2), first pivot (2) and circular saw (1) fixed connection, adjacent baffle (8) are run through respectively at the both ends of first pivot (2), just first pivot (2) and baffle (8) swing joint are located leftwards baffle (8) left side fixedly connected with first framework (22), first framework (22) inner chamber bottom fixedly connected with first motor (21), the left end of first pivot (2) runs through the right side of first framework (22) to with first motor (21) fixed connection, first pivot (2) and first framework (22) swing joint, its characterized in that: a plurality of driving rollers (6) are arranged below the circular saw (1), a plurality of driving rollers (6) penetrate through the center of the circular saw (1), a plurality of rotating shafts (5) are arranged at the two ends of each second rotating shaft (5) and penetrate through the adjacent baffle plates (8), the second rotating shafts (5) are movably connected with the baffle plates (8), a plurality of idler wheels (3) are arranged on one opposite sides of the two baffle plates (8), the idler wheels (3) are positioned right above the adjacent driving rollers (6), one side, close to the adjacent baffle plates (8), of each idler wheel (3) is fixedly connected with a third rotating shaft (4), one end, far away from the idler wheels (3), of each third rotating shaft (4) penetrates through the adjacent baffle plates (8) and is movably connected with the baffle plates (8), a second frame body (20) is fixedly connected to the bottom of the first frame body (22), the left ends, located on the front side and the rear side, of the two second rotating shafts (5) penetrate through the right side of, and extend to second framework (20) inner chamber, second pivot (5) and second framework (20) swing joint, second framework (20) inner chamber bottom fixedly connected with second motor (16), the right side of second motor (16) is equipped with fourth pivot (15) and two first drive wheels (17), two first drive wheels (17) set up for from top to bottom, fourth pivot (15) left end runs through first drive wheel (17) that are located the below to with second motor (16) power take off end fixed connection, second pivot (5) left end runs through be located the top first drive wheel (17), two between first drive wheel (17) through first belt (18) transmission connection, be located the top first drive wheel (17) left side is equipped with two second drive wheels (19), two second drive wheel (19) set up for the front and back, the left ends of the front second rotating shaft (5) and the rear second rotating shaft (5) respectively penetrate through two second driving wheels (19), the two second driving wheels (19) are in transmission connection through a second belt (23), a dust collection box (9) is arranged between the two baffles (8), the dust collection box (9) is positioned below the plurality of driving rollers (6), an air outlet is formed in the position, close to the bottom, of the dust collection box (9), a filter screen (14) is arranged in the dust collection box (9), the filter screen (14) is positioned in the position, close to the bottom, of the dust collection box (9), a first conical gear (12) is arranged below the filter screen (14), a bearing is fixedly connected to the bottom of an inner cavity of the dust collection box (9), a fifth rotating shaft (11) is inserted into the top of the bearing, and the top end of the fifth rotating shaft (11) penetrates through the first conical gear (12) and extends to the, fifth pivot (11) and first conical gear (12) fixed connection, fifth pivot (11) are close to top department outside edge fixedly connected with a plurality of flabellum (10), first conical gear (12) left side is equipped with second conical gear (13), first conical gear (12) and second conical gear (13) intermeshing, the right-hand member of fourth pivot (15) runs through the left side of dust collection box (9) to with second conical gear (13) fixed connection.
2. The board cutting device for board room production according to claim 1, wherein: the dust collection box is characterized in that first fixing plates (7) are fixedly connected to the two sides of an inner cavity of the dust collection box (9) close to the top, connecting rods (25) are fixedly connected to the top of the first fixing plates (7), second fixing plates (24) are arranged on the tops of the two first fixing plates (7), the two second fixing plates (24) are fixedly connected to the left side and the right side of the filter screen (14) respectively, openings are formed in the bottoms of the second fixing plates (24), the top ends of the connecting rods (25) penetrate through the openings and extend to the inner cavity of the second fixing plates (24), first buckles (26) are fixedly connected to the left side of the connecting rods (25) close to the top, third frame bodies (30) are fixedly connected to the left side of the inner cavity of the second fixing plates (24), first grooves are formed in the tops of the third frame bodies (30), limiting rods (29) are fixedly connected to the left side of the inner cavity, spring (31) left side fixed connection is in third framework (30) inner chamber left side, spring (31) right side fixedly connected with slide tube (28), slide tube (28) right-hand member runs through third framework (30) right side and fixedly connected with second buckle (27), second buckle (27) are located first buckle (26) below, gag lever post (29) right-hand member is pegged graft in slide tube (28) inner chamber.
3. The board cutting device for board room production according to claim 2, wherein: the limiting plate (32) is fixedly connected to the left side of the inner cavity of the second fixing plate (24), the limiting plate (32) is located above the third frame body (30), and a second groove matched with the first groove is formed in the limiting plate (32).
4. The board cutting device for board room production according to claim 3, wherein: the top of the second fixing plate (24) is provided with a third open slot matched with the first open slot, one end of the top of the sliding tube (28) close to the spring (31) is fixedly connected with a shift lever (33), and the top end of the shift lever (33) sequentially penetrates through the first open slot, the second open slot and the third open slot.
5. The board cutting device for board room production according to claim 1, wherein: the fan blades (10) are arranged in a surrounding way by taking a fifth rotating shaft (11) as a center.
6. The board cutting device for board room production according to claim 2, wherein: the length of the opening is larger than the horizontal distance from the left side of the first buckle (26) to the right side of the connecting rod (25).
7. The board cutting device for board room production according to claim 2, wherein: the horizontal distance from the right side of the second buckle (27) to the right end of the limiting rod (29) is greater than the horizontal distance from the left side to the right side of the first buckle (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940686.7U CN210877849U (en) | 2019-11-12 | 2019-11-12 | Panel cutting device is used in board room production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940686.7U CN210877849U (en) | 2019-11-12 | 2019-11-12 | Panel cutting device is used in board room production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210877849U true CN210877849U (en) | 2020-06-30 |
Family
ID=71332968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921940686.7U Expired - Fee Related CN210877849U (en) | 2019-11-12 | 2019-11-12 | Panel cutting device is used in board room production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210877849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475430A (en) * | 2020-12-05 | 2021-03-12 | 青岛海德工程集团股份有限公司 | A steel cutting equipment for water works construction |
| CN113210702A (en) * | 2021-05-02 | 2021-08-06 | 张鸟金 | Metal material cutting device |
-
2019
- 2019-11-12 CN CN201921940686.7U patent/CN210877849U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475430A (en) * | 2020-12-05 | 2021-03-12 | 青岛海德工程集团股份有限公司 | A steel cutting equipment for water works construction |
| CN112475430B (en) * | 2020-12-05 | 2024-04-19 | 青岛海德工程集团股份有限公司 | Steel cutting equipment for water works construction |
| CN113210702A (en) * | 2021-05-02 | 2021-08-06 | 张鸟金 | Metal material cutting device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 Termination date: 20211112 |