CN209955984U - Railway pedal type electric power-assisted multipurpose railcar - Google Patents
Railway pedal type electric power-assisted multipurpose railcar Download PDFInfo
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- CN209955984U CN209955984U CN201920599292.3U CN201920599292U CN209955984U CN 209955984 U CN209955984 U CN 209955984U CN 201920599292 U CN201920599292 U CN 201920599292U CN 209955984 U CN209955984 U CN 209955984U
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- railway
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Abstract
The utility model discloses a railway footboard formula electric power helping hand multipurpose railcar includes handrail and bottom plate, first spout has been seted up to the one end of bottom plate, the inside of first spout is provided with two sets of first sliders, the draw hook is all installed in the outside of first slider, the shaft hole has been seted up to the inside that the bottom plate is close to first spout one end, first bearing is all installed to the inside both sides in shaft hole, the internally mounted of first bearing has the second connecting axle. The utility model discloses a mutually supporting of first telescope tube, round brush, second telescope tube and scraper blade is used, when this railcar went on the track, the second spring pressed the scraper blade storehouse to the rail, and the inside scraper blade in scraper blade storehouse can strike off the spot on the rail this moment, and first spring stretches first telescope tube and presses the round brush to the rail, and the round brush closely laminates and takes place to rotate with the rail this moment, can clear up the rail surface.
Description
Technical Field
The utility model relates to a railway equipment technical field specifically is a railway footboard formula electric power helping hand multipurpose railcar.
Background
The rail car is a main transport tool in railway construction and maintenance engineering, and has the functions of traction, transportation, maintenance and operation in the railway construction and maintenance engineering, and is an essential device in the railway construction process.
The existing railway track car is simple in structure, the track car is single in function, the function of transporting goods in railway construction can only be borne, the capacity of cleaning rails is not available, the limitation of the track car is large in use, the traditional railway track car is simple in design, the running mode of the track car is single, the track car can only be driven by manpower or only be driven by a motor, the manually driven track car wastes a large amount of manpower when in use, the motor driven track car is difficult to move when in failure, inconvenience is brought to the use of the track car, the existing track car is not provided with the functions of hoisting and fixing goods to be transported, and the actual using effect of the track car is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a railway footboard formula electric power helping hand multipurpose railcar to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a railway pedal type electric power-assisted multipurpose rail car comprises handrails and a bottom plate, wherein one end of the bottom plate is provided with a first chute, two groups of first sliders are arranged inside the first chute, traction hooks are arranged on the outer sides of the first sliders, a shaft hole is formed in the bottom plate close to one end of the first chute, first bearings are arranged on two sides inside the shaft hole, a second connecting shaft is arranged inside the first bearings, first edge wheels are arranged on two sides of the second connecting shaft, a through groove is formed in the middle position of the bottom plate, which is just opposite to the second connecting shaft, first ratchet teeth are arranged on the outer sides of the second connecting shaft, first ratchet wheels are arranged on the outer sides of the first ratchet teeth, two groups of first pawls are meshed between the inner sides of the first ratchet wheels and the first ratchet teeth, and first chain gears are arranged on the outer sides of the first ratchet wheels, a first support is mounted on the bottom plate, far away from one end of the first sliding groove, of the through groove, a first connecting shaft is mounted on the inner side of the top end of the first support, fixing rods are mounted on two sides of the first connecting shaft, fixing shafts are mounted at one ends, far away from the first connecting shaft, of the fixing rods, pedals are mounted on the outer sides of the fixing shafts, second ratchet teeth are mounted at the middle position of the outer side of the first connecting shaft, second ratchets are mounted on the outer sides of the second ratchet teeth, two groups of second pawls are meshed between the inner sides of the second ratchets and the second ratchet teeth, second chain gears are mounted on the outer sides of the second ratchet gears, chains meshed with the first chain gears are mounted on the outer sides of the second chain gears, handrails are mounted on two sides, near one end of the through groove, of the top end of the bottom plate, a control panel is mounted on the top end of the handrail, and first mounting blocks are, the end, far away from the bottom plate, of the first installation block is provided with a first telescopic sleeve, the inside of the first telescopic sleeve is provided with a first spring, the bottom end of the first telescopic sleeve is provided with a second support, the bottom end of the second support is provided with a rolling brush, the two sides, far away from the end of the first sliding groove, of the bottom plate are provided with motor grooves, the inside of the motor grooves is provided with a driving motor, the output end of the driving motor is provided with a second side wheel through a coupler, the inside, far away from the end of the second side wheel, of the two sides of the bottom plate is provided with a second installation block, the end, far away from the bottom plate, of the second installation block is provided with a second telescopic sleeve, the inside of the second telescopic sleeve is provided with a second spring, the bottom end of the second telescopic sleeve is provided with a scraper bin, and the top end inside the scraper bin is provided, the bottom of the third spring is provided with scrapers which penetrate through the bottom of the scraper bin, one end of the bottom plate, which is far away from the handrail, is provided with a rotating base, the top end of the rotating base is provided with an electric telescopic rod, the top end of the electric telescopic rod is hinged with a rotating arm, the inside of the rotating arm is provided with a suspension arm, the top end of the rotating arm, which is close to one end of the suspension arm, is provided with a through hole, the top end of the suspension arm, which is close to one end of the rotating arm, is provided with a threaded hole uniformly, the inside of the through hole is provided with a bolt which extends to the inside of the threaded hole, the bottom end of the suspension arm, which is far away from one end of the rotating arm, is provided with a hook, the top end, the fixed block is all installed on the top of second slider, the locating hole has all been seted up on the top of fixed block, the inside of locating hole all is provided with the threaded rod, the carousel is all installed to one side that the threaded rod is close to first spout, the fixed plate is all installed to one side that the threaded rod was kept away from to the carousel, control panel's output pass through the wire respectively with driving motor and electric telescopic handle's input electric connection.
Preferably, the top ends of the handrails are provided with anti-slip sleeves.
Preferably, the top end of the mounting plate is provided with anti-skid grains.
Preferably, a push handle is installed at one end of the handrail close to the first sliding groove.
Preferably, limit stops are mounted on one sides, close to the bottom plate, of the first side wheels.
Preferably, the fixed plate is provided with anti-slip blocks on one side far away from the turntable.
Compared with the prior art, the beneficial effects of the utility model are that: the railway pedal type electric power-assisted multipurpose railcar is characterized in that the first telescopic sleeve, the rolling brush, the second telescopic sleeve and the scraper are matched with each other for use, when the railcar runs on a rail, the second spring presses the scraper bin to the rail, at the moment, the scraper in the scraper bin can scrape stains on the rail, the first spring stretches the first telescopic sleeve and presses the rolling brush to the rail, at the moment, the rolling brush is tightly attached to the rail and rotates to clean the surface of the rail, through the combined use of the two cleaning modes, the surface of the rail can be cleaned, the actual using effect of the railcar is improved, through the mutual matching use of the first ratchet wheel, the second ratchet wheel, the chain and the driving motor, at ordinary times, a user can drive the second side wheel to rotate by starting the driving motor, so that the railcar moves, when the driving motor breaks down, at the moment, the handrails can be held by hands, two feet are respectively treaded on the two pedals, the two pedals are ridden, the second chain gear drives the chain and the first chain gear to rotate, so that the second connecting shaft can be driven to rotate, the rail car can move in a manual mode, the actual using effect of the rail car can be improved by using two different moving modes in a combined mode, the rotating arm and the suspension arm are matched with each other for use, when the rail car needs to transport and hoist materials, the rotating arm is firstly rotated to the position above the materials to be hoisted, the bolt is unscrewed, the suspension arm is pulled and a proper threaded hole is selected, the bolt penetrates through the through hole and is screwed into the corresponding threaded hole, the electric telescopic rod is controlled to be opened, the height of the electric telescopic rod is adjusted, the materials are hoisted on the hook, and the rotating arm is rotated to the position above the mounting plate again, control reduces electric telescopic handle's height, make the goods and materials place on the mounting panel, can save more manpower through this kind of hoist and mount mode, the practicality of railcar is stronger, through the fixed plate, the second slider, the use of mutually supporting of threaded rod and second spout, after the hoist and mount of accomplishing the goods and materials, through the position of adjusting the second slider, then the rotatory threaded rod, the threaded rod is rotatory this moment can remove the fixed plate to the goods and materials of mounting panel top, tightly laminate when the fixed plate is at the goods and materials side, stop rotatory threaded rod, can fix the locating place of goods and materials.
Drawings
Fig. 1 is a schematic top cross-sectional view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
fig. 3 is a schematic front view of the present invention;
fig. 4 is an enlarged schematic view of the utility model at a;
fig. 5 is an enlarged schematic view of the utility model at the position B;
fig. 6 is an enlarged schematic view of the utility model at the position C;
fig. 7 is an enlarged schematic view of the utility model at position D;
fig. 8 is an enlarged schematic view of the utility model at E.
In the figure: 1. a first side wheel; 2. a shaft hole; 3. a first mounting block; 4. a pedal; 5. a second mounting block; 6. a second side wheel; 7. a drive motor; 8. a motor slot; 9. a turntable; 10. a fixed shaft; 11. a first bearing; 12. a first slider; 13. a through groove; 14. a first chute; 15. a push handle; 16. a handrail; 17. a control panel; 18. a suspension arm; 19. a second bearing; 20. a through hole; 21. a threaded hole; 22. a rotating arm; 23. an electric telescopic rod; 24. a base plate; 25. rotating the base; 26. a second chute; 27. a second slider; 28. a fixing plate; 29. positioning holes; 30. mounting a plate; 31. a chain; 32. fixing the rod; 33. hooking; 34. a bolt; 35. a fixed block; 36. a threaded rod; 37. a first connecting shaft; 38. a towing hook; 39. a first chain gear; 40. a first ratchet tooth; 41. a first pawl; 42. a first ratchet wheel; 43. a second ratchet wheel; 44. a first bracket; 45. a second chain gear; 46. a second pawl; 47. a second ratchet tooth; 48. a first telescopic sleeve; 49. a first spring; 50. a second bracket; 51. rolling and brushing; 52. a second telescopic sleeve; 53. a second spring; 54. a third spring; 55. a squeegee; 56. a scraper bin; 57. and a second connecting shaft.
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. 1-8, the present invention provides an embodiment: a railway pedal type electric power-assisted multipurpose rail car comprises a handrail 16 and a bottom plate 24, wherein one end of the bottom plate 24 is provided with a first sliding groove 14, two groups of first sliding blocks 12 are arranged inside the first sliding groove 14, traction hooks 38 are arranged on the outer sides of the first sliding blocks 12, a shaft hole 2 is arranged inside the bottom plate 24 close to one end of the first sliding groove 14, first bearings 11 are arranged on two sides inside the shaft hole 2, a second connecting shaft 57 is arranged inside the first bearings 11, first side wheels 1 are arranged on two sides of the second connecting shaft 57, a through groove 13 is arranged at the middle position of the second connecting shaft 57 opposite to the bottom plate 24, first ratchet teeth 40 are arranged on the outer sides of the second connecting shaft 57, first ratchet wheels 42 are arranged on the outer sides of the first ratchet teeth 40, two groups of first pawls 41 are meshed between the inner sides of the first ratchet wheels 42 and the first ratchet teeth 40, and first chain gears 39 are arranged on the outer sides of the first ratchet, a first support 44 is mounted on the bottom plate 24 at one end of the through groove 13 far away from the first sliding groove 14, a first connecting shaft 37 is mounted on the inner side of the top end of the first support 44, fixing rods 32 are mounted on both sides of the first connecting shaft 37, a fixing shaft 10 is mounted at one end of each fixing rod 32 far away from the first connecting shaft 37, pedals 4 are mounted on both outer sides of the fixing shaft 10, second ratchet teeth 47 are mounted at the middle position of the outer side of the first connecting shaft 37, second ratchet wheels 43 are mounted on both outer sides of the second ratchet teeth 47, two groups of second pawls 46 are engaged between the inner sides of the second ratchet wheels 43 and the second ratchet teeth 47, second chain gears 45 are mounted on the outer sides of the second ratchet wheels 43, chains 31 engaged with the first chain gears 39 are mounted on the outer sides of the second chain gears 45, handrails 16 are mounted on both sides of one end of the bottom plate 24 near the through groove 13, and a control panel, the inner parts of two sides of the bottom plate 24 far away from one end of the first side wheel 1 are all provided with a first mounting block 3, one end of the first mounting block 3 far away from the bottom plate 24 is all provided with a first telescopic sleeve 48, the inner parts of the first telescopic sleeve 48 are all provided with a first spring 49, the bottom ends of the first telescopic sleeve 48 are all provided with a second bracket 50, the bottom ends of the second bracket 50 are all provided with a rolling brush 51, the two inner sides of one end of the bottom plate 24 far away from the first chute 14 are both provided with a motor groove 8, the inner parts of the motor grooves 8 are all provided with a driving motor 7, the model of the driving motor 7 can be Y90S-2, the output ends of the driving motor 7 are all provided with a second side wheel 6 through a coupler, the inner parts of one end of two sides of the bottom plate 24 far away from the second side wheel 6 are both provided with a second mounting block 5, one end of the second mounting block 5 far away from the bottom plate, the bottom ends of the second telescopic sleeves 52 are all provided with scraper bins 56, the top ends inside the scraper bins 56 are all provided with third springs 54, the bottom ends of the third springs 54 are all provided with scrapers 55 penetrating through the bottom ends of the scraper bins 56, the end of the top end of the bottom plate 24 far away from the handrail 16 is provided with a rotating base 25, the top end of the rotating base 25 is provided with an electric telescopic rod 23, the top end of the electric telescopic rod 23 is hinged with a rotating arm 22, the inside of the rotating arm 22 is provided with a suspension arm 18, the top end of the rotating arm 22 near one end of the suspension arm 18 is provided with a through hole 20, the top end of the suspension arm 18 near one end of the rotating arm 22 is provided with a threaded hole 21 uniformly, the inside of the through hole 20 is provided with a bolt 34 extending to the inside of the threaded hole 21, the bottom end of the, second spout 26 has all been seted up to the inside both sides of mounting panel 30, second spout 26's inside all is provided with two sets of second sliders 27, fixed block 35 is all installed on the top of second slider 27, locating hole 29 has all been seted up on the top of fixed block 35, locating hole 29's inside all is provided with threaded rod 36, carousel 9 is all installed to one side that threaded rod 36 is close to first spout 14, fixed plate 28 is all installed to one side that threaded rod 36 was kept away from to carousel 9, control panel 17's output pass through the wire respectively with driving motor 7 and electric telescopic handle 23's input electric connection.
In this implementation: antiskid cover is all installed on the top of handrail 16, the security that the improvement device used, anti-skidding line has all been seted up on the top of mounting panel 30, can make putting of goods and materials more stable, handrail 16 is close to the one end of first spout 14 and installs and push away 15, the practicality of device has been improved, limit stop is all installed to one side that first limit wheel 1 is close to bottom plate 24, the security that the device used has been improved, the non slipping spur is all installed to one side that carousel 9 was kept away from to fixed plate 28, can make fixed plate 28 more firm to the fixed of goods and materials.
The working principle is as follows: at ordinary times, the rail car can control the driving motor 7 to be started through the control panel 17 to drive the second side wheel 6 to rotate, so as to drive the rail car to move, a great amount of manpower is saved by driving the rail car to move through the driving motor 7, when the driving motor 7 fails to move, both feet can be respectively stepped on the pedal 4 by holding the handrail 16 with both hands to ride, at this time, the fixing rod 32 drives the first connecting shaft 37 to rotate, the second ratchet wheel teeth 47 outside the first connecting shaft 37 are clamped with the second pawl 46 and drive the second ratchet wheel 43 to rotate, the second chain gear 45 outside the second ratchet wheel 43 drives the chain 31 meshed with the second chain gear 45 to move, the chain 31 transmits the moving force to the first chain gear 39, the first chain gear 39 drives the first ratchet wheel 42 to rotate, the first ratchet wheel 42 drives the first ratchet wheel teeth 40 to rotate through the first pawl 41 clamped with the first ratchet wheel teeth 40, thereby driving the second connecting shaft 57 to rotate, and driving the first side wheel 1 to move, so that the rail car can move in a manual mode, and the practical use effect of the rail car can be improved by using two different moving modes together, in the moving process of the rail car, the second spring 53 presses the scraper bin 56 to the rail under the self elastic acting force, at the moment, the third spring 54 in the scraper bin 56 presses the scraper 55 to the rail under the self elastic acting force, so that the scraper 55 can scrape off stains on the rail, the first spring 49 presses the second bracket 50 to the rail under the self elastic acting force, at the moment, the rolling brush 51 at the bottom end of the second bracket 50 is tightly attached to the rail and rotates, the surface of the rail can be cleaned, when the rail car needs to transport and hoist materials, the rotating arm 22 is firstly rotated to the upper part of the materials to be hoisted, the bolt 34 is screwed out, the suspension arm 18 is pulled and a proper threaded hole 21 is selected, then the bolt 34 penetrates through the through hole 20 and is screwed into the corresponding threaded hole 21, the electric telescopic rod 23 is controlled to be opened through the control panel 17, the height of the electric telescopic rod 23 is adjusted, materials are hung on the hook 33, the rotating arm 22 is rotated to the position above the mounting plate 30 again, the height of the electric telescopic rod 23 is controlled to be reduced, the materials are placed on the mounting plate 30, more manpower can be saved through the hoisting mode, after the materials are hoisted, the position of the second sliding block 27 is adjusted, then the threaded rod 36 is rotated, at the moment, the threaded rod 36 rotates to move the fixing plate 28 to the materials above the mounting plate 30, when the fixing plate 28 is tightly attached to the side edge of the materials, the threaded rod 36 stops rotating, and the placing position of the materials can be fixed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A railway pedal-type electrically-assisted multipurpose railcar including a handrail (16) and a base plate (24), characterized in that: a first sliding groove (14) is formed in one end of the bottom plate (24), two sets of first sliding blocks (12) are arranged inside the first sliding groove (14), a traction hook (38) is installed on the outer side of each first sliding block (12), a shaft hole (2) is formed in the bottom plate (24) close to one end of the first sliding groove (14), first bearings (11) are installed on two sides inside the shaft hole (2), a second connecting shaft (57) is installed inside the first bearings (11), first side wheels (1) are installed on two sides of the second connecting shaft (57), a through groove (13) is formed in the middle position of the bottom plate (24) opposite to the second connecting shaft (57), first ratchet teeth (40) are installed on the outer side of the second connecting shaft (57), first ratchets (42) are installed on the outer side of the first ratchet teeth (40), and two sets of first pawls (41) are meshed between the inner side of the first ratchet wheels (42) and the first ratchet teeth (40), a first chain gear (39) is installed on the outer side of the first ratchet wheel (42), a first support (44) is installed on a bottom plate (24) far away from one end of the first sliding groove (14) through the groove (13), a first connecting shaft (37) is installed on the inner side of the top end of the first support (44), fixing rods (32) are installed on two sides of the first connecting shaft (37), a fixing shaft (10) is installed at one end, far away from the first connecting shaft (37), of each fixing rod (32), pedals (4) are installed on the outer side of each fixing shaft (10), second ratchet teeth (47) are installed at the middle position of the outer side of the first connecting shaft (37), second ratchet wheels (43) are installed on the outer sides of the second ratchet teeth (47), two sets of second pawls (46) are meshed between the inner sides of the second ratchet wheels (43) and the second ratchet teeth (47), and a second chain gear (45) is installed on the outer sides of the second ratchet wheels (43), the chain (31) meshed with the first chain gear (39) is installed on the outer side of the second chain gear (45), handrails (16) are installed on two sides of the top end of the bottom plate (24) close to one end of the through groove (13), a control panel (17) is installed on the top end of each handrail (16), first installation blocks (3) are installed inside the two sides of the bottom plate (24) far away from one end of the first side wheel (1), first telescopic sleeves (48) are installed on one ends of the first installation blocks (3) far away from the bottom plate (24), first springs (49) are installed inside the first telescopic sleeves (48), second supports (50) are installed at the bottoms of the first telescopic sleeves (48), rolling brushes (51) are installed at the bottoms of the second supports (50), motor grooves (8) are formed in two sides of the bottom plate (24) far away from one end of the first sliding groove (14), the motor groove (8) is internally provided with a driving motor (7), the output end of the driving motor (7) is provided with a second side wheel (6) through a coupler, the two sides of the bottom plate (24) are far away from one end of the second side wheel (6) and internally provided with a second installation block (5), one end of the second installation block (5) far away from the bottom plate (24) is provided with a second telescopic sleeve (52), the inside of the second telescopic sleeve (52) is provided with a second spring (53), the bottom end of the second telescopic sleeve (52) is provided with a scraper bin (56), the top end of the inside of the scraper bin (56) is provided with a third spring (54), the bottom end of the third spring (54) is provided with a scraper (55) penetrating through the bottom end of the scraper bin (56), the top end of the bottom plate (24) far away from the handrail (16) is provided with a rotating base (25), electric telescopic handle (23) is installed on the top of rotating base (25), the top of electric telescopic handle (23) articulates there is swinging boom (22), the inside of swinging boom (22) is provided with davit (18), through-hole (20) have been seted up on swinging boom (22) near the top of davit (18) one end, even threaded hole (21) has been seted up on the top that davit (18) is close to swinging boom (22) one end, through-hole (20) inside is provided with bolt (34) that extend to threaded hole (21) inside, davit (18) are kept away from the bottom of swinging boom (22) one end and are installed second bearing (19), couple (33) are installed to the bottom of second bearing (19), mounting panel (30) are installed on the top of bottom plate (24) between handrail (16) and rotating base (25), second spout (26) have all been seted up to the inside both sides of mounting, the inside of second spout (26) all is provided with two sets of second slider (27), fixed block (35) are all installed on the top of second slider (27), locating hole (29) have all been seted up on the top of fixed block (35), the inside of locating hole (29) all is provided with threaded rod (36), carousel (9) are all installed to one side that threaded rod (36) are close to first spout (14), fixed plate (28) are all installed to one side that threaded rod (36) were kept away from in carousel (9), the output of control panel (17) pass through the wire respectively with driving motor (7) and electric telescopic handle (23) input electric connection.
2. The railway pedal-type electric power-assisted multipurpose rail car as claimed in claim 1, wherein: the top ends of the handrails (16) are provided with anti-skidding sleeves.
3. The railway pedal-type electric power-assisted multipurpose rail car as claimed in claim 1, wherein: the top end of the mounting plate (30) is provided with anti-skid grains.
4. The railway pedal-type electric power-assisted multipurpose rail car as claimed in claim 1, wherein: and a push handle (15) is arranged at one end of the handrail (16) close to the first sliding chute (14).
5. The railway pedal-type electric power-assisted multipurpose rail car as claimed in claim 1, wherein: and one side of the first side wheel (1) close to the bottom plate (24) is provided with a limit stop.
6. The railway pedal-type electric power-assisted multipurpose rail car as claimed in claim 1, wherein: and anti-skidding blocks are arranged on one side of the fixing plate (28) far away from the turntable (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920599292.3U CN209955984U (en) | 2019-04-28 | 2019-04-28 | Railway pedal type electric power-assisted multipurpose railcar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920599292.3U CN209955984U (en) | 2019-04-28 | 2019-04-28 | Railway pedal type electric power-assisted multipurpose railcar |
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Publication Number | Publication Date |
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CN209955984U true CN209955984U (en) | 2020-01-17 |
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Family Applications (1)
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CN201920599292.3U Expired - Fee Related CN209955984U (en) | 2019-04-28 | 2019-04-28 | Railway pedal type electric power-assisted multipurpose railcar |
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CN (1) | CN209955984U (en) |
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2019
- 2019-04-28 CN CN201920599292.3U patent/CN209955984U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20200428 |
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CF01 | Termination of patent right due to non-payment of annual fee |