CN216471576U - Electromechanical engineering cable winding and unwinding devices - Google Patents
Electromechanical engineering cable winding and unwinding devices Download PDFInfo
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- CN216471576U CN216471576U CN202122655491.1U CN202122655491U CN216471576U CN 216471576 U CN216471576 U CN 216471576U CN 202122655491 U CN202122655491 U CN 202122655491U CN 216471576 U CN216471576 U CN 216471576U
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Abstract
The utility model discloses an electromechanical engineering cable winding and unwinding device, which comprises a bottom plate, a cable winding and unwinding unit and a transmission unit, wherein the bottom plate is provided with a first cable winding and unwinding unit; a bottom plate: a storage battery and a switch are fixed on the right front side of the upper surface, the output end of the storage battery is electrically connected with the input end of the switch, and fixing plates are fixed on the front side and the rear side of the left side of the upper surface of the bottom plate; a cable take-up and pay-off unit: including cable drum, belt pulley, mount pad, belt and fixed axle, the mount pad is the U type, and three mount pad equidistance fixes on the right side of bottom plate upper surface, and the upside of side is rotated with the middle part of three cable drum front and back side respectively in the three mount pad and is connected, the both ends of fixed axle respectively with the right side fixed connection of two fixed plate opposite flank, this electrical engineering cable winding and unwinding devices can receive and release three cables simultaneously, makes three cables receive and release simultaneously, reduces the time that many cables laid and consume, can effectual improvement cable laying's efficiency, convenient to use.
Description
Technical Field
The utility model relates to the technical field of cable winding and unwinding equipment, in particular to an electromechanical engineering cable winding and unwinding device.
Background
The cable is an electric energy or signal transmission device, and generally comprises several or several groups of conducting wires, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. The cable winding and unwinding device is composed of single-stranded or multi-stranded wires and an insulating layer and is used for connecting a circuit, an electric appliance and the like, a cable is usually laid on an electric device in electromechanical engineering, the cable needs to be wound and unwound when the cable is laid, a cable winding and unwinding machine is usually adopted when the cable is wound and unwound at present, but the existing cable winding and unwinding machine can only wind and unwind the single-coiled cable, and the cable needs to be wound and unwound for many times when a plurality of cables need to be simultaneously laid, so that the laying speed of the cable is low, the consumed time is long, and the efficiency of winding and unwinding the plurality of cables is low.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses an electromechanical engineering cable winding and unwinding device, which adopts the technical scheme that the device comprises a bottom plate, a cable winding and unwinding unit and a transmission unit;
a bottom plate: a storage battery and a switch are fixed on the right front side of the upper surface, the output end of the storage battery is electrically connected with the input end of the switch, and fixing plates are fixed on the front side and the rear side of the left side of the upper surface of the bottom plate;
a cable take-up and pay-off unit: the cable drum comprises cable drums, belt pulleys, mounting seats, belts and fixing shafts, wherein the mounting seats are U-shaped, the three mounting seats are fixed on the right side of the upper surface of a bottom plate at equal intervals, the upper sides of the front side and the rear side in the three mounting seats are respectively rotatably connected with the middle parts of the front side and the rear side of the three cable drums, two ends of each fixing shaft are respectively fixedly connected with the right sides of the opposite sides of the two fixing plates, the six belt pulleys are arranged, the front sides of the three belt pulleys on the right side are respectively rotatably connected with the upper sides of the rear sides of the three mounting seats, shafts in the middle parts of the front sides of the three belt pulleys on the right side penetrate through holes in the upper sides of the rear sides of the mounting seats and are fixedly connected with the middle parts of the rear sides of the three cable drums, the inner sides of the three belt pulleys on the left side are rotatably connected with the side of the fixing shafts, and the three belt pulleys on the left side and the right side are respectively connected through the three belts, and the arranged cable units can simultaneously receive and release three cables, the three cables can be simultaneously wound and unwound, so that the time consumed by laying the plurality of cables is reduced, the cable laying efficiency can be effectively improved, and the cable laying device is convenient to use;
a transmission unit: the belt conveyor comprises driving gears, transmission gears, shifting forks, square rods, rotating shafts and motors, wherein the cross sections of the rotating shafts are triangular, two ends of each rotating shaft are respectively and rotatably connected with the middle parts of the opposite side surfaces of two fixed plates, the rear ends of the rotating shafts penetrate through triangular sliding holes in the middle parts of the front side surfaces of the three driving gears, the three transmission gears are sleeved on the outer sides of fixed shafts, the rear side surfaces of the three transmission gears are respectively and fixedly connected with the front side surfaces of three left belt pulleys, the three transmission gears are respectively meshed with the three driving gears, two ends of each square rod are fixedly connected with the left sides of the opposite side surfaces of the two fixed plates, the rear ends of the square rods penetrate through square sliding holes in the left sides of the front side surfaces of the three shifting forks, the three shifting forks are U-shaped, the three shifting forks are respectively positioned on the outer sides of the three driving gears, and the motors are arranged in the middle parts of the front side surfaces of the fixed plates on the front sides, and the output shaft of the motor passes through the through hole in the middle of the front side surface of the fixing plate on the front side and is fixedly connected with the front end of the rotating shaft, the input end of the motor is electrically connected with the output end of the switch, and the arranged transmission unit can enable people to adjust the position of the driving gear and enable the driving gear and the transmission gear to be separated or meshed, so that the winding and unwinding of a single cable, two cables or three cables are realized, and the use is convenient.
The shifting fork mechanism comprises a shifting fork, a transmission gear, a connecting plate, three fixing holes and three fixing pins, wherein the three connecting plates are respectively fixed at the lower sides of the left side surfaces of the three shifting forks, the three fixing holes are formed in the left side of the upper surface of a bottom plate, the three fixing pins are respectively inserted into through holes in the upper surfaces of the three connecting plates and are respectively aligned with the three fixing holes, and the driving gear can be fixed by the aid of the three fixing pins and the three fixing holes after the driving gear is meshed with the transmission gear, so that the driving gear is prevented from shifting when being driven to rotate by the driving gear.
As a preferred technical scheme of the utility model, the gear shifting fork is characterized by further comprising three push rods, wherein the push rods are L-shaped, the lower ends of the three push rods are fixedly connected with the left sides of the upper surfaces of the three shifting forks respectively, and the arranged push rods can conveniently push the shifting forks to move to adjust the position of the driving gear.
As a preferred technical scheme of the utility model, the cable winding and unwinding device further comprises four universal wheels, wherein the four universal wheels are respectively arranged at four corners of the lower surface of the bottom plate, and the arranged universal wheels can enable the cable winding and unwinding device to be conveniently moved and facilitate the use of cable laying.
As a preferable technical scheme, the temperature-adjustable heating device further comprises a pull rod, the pull rod is T-shaped, the lower end of the pull rod is fixedly connected with the left side of the upper surface of the bottom plate, and the arranged pull rod can enable people to conveniently pull or push the bottom plate to move at the temperature.
The cable reel comprises a bottom plate, a plurality of cable reels, a plurality of supporting plates and wire holes, wherein the bottom plate is provided with a bottom plate, the supporting plates are fixed on the right side of the upper surface of the bottom plate respectively, the supporting plates are located on the right sides of the cable reels respectively, the wire holes are formed in the side faces of the upper ends of the supporting plates respectively, the wire holes in the supporting plates can guide cables when the cable reels receive and release the cables, and the cables are prevented from being separated from the cable reels due to swinging when the cables are received and released.
As a preferred technical scheme of the utility model, the belt conveyor further comprises three bearings, inner rings of the three bearings are respectively and fixedly connected with the two ends of the fixed shaft and the side surface of the middle part of the fixed shaft, outer rings of the three bearings are respectively and fixedly connected with the inner side surfaces of the three belt pulleys on the right side, and the arranged bearings can improve the smoothness of rotation of the three belt pulleys on the left side and avoid the occurrence of the blocking condition.
The utility model has the beneficial effects that: the utility model drives the rotating shaft and the driving gear to rotate through the motor, so that the three driving gears drive the three transmission gears on the left side and the three belt pulleys on the left side to rotate, and drives the three belt pulleys on the right side to rotate through the belt and drive the three cable drums to rotate, thereby simultaneously winding and unwinding the three cables, reducing the time consumed by laying a plurality of cables, effectively improving the efficiency of laying the cables and being convenient to use, and the driving gear can also move on the rotating shaft, so that people can adjust the position of the driving gear to separate or mesh the driving gear and the transmission gears, thereby realizing the winding and unwinding of single cable, two cables or three cables, being convenient to use, fixing the driving gear after the driving gear is meshed with the transmission gears through the fixing pin and the fixing hole, and preventing the driving gear from deviating when driving the transmission gears to rotate, the push fork can be conveniently pushed through the push rod to move to adjust the position of the driving gear, the cable winding and unwinding device can be conveniently moved through the universal wheels, the cable winding and unwinding device is convenient to use when being convenient for laying cables, people can conveniently pull the temperature or push the bottom plate to move through the pull rod, the cable can be guided through the wire hole in the supporting plate when the cable drum winds and unwinds the cables, the cables are prevented from swinging when being wound and unwound and being separated from the cable drum, the smoothness of the rotation of the three left belt pulleys can be improved through the bearing, and the blocking condition is avoided.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the backside structure of the present invention.
In the figure: the device comprises a base plate 1, a storage battery 2, a switch 3, a fixing plate 4, a cable winding and unwinding unit 5, a cable reel 51, a belt pulley 52, a mounting seat 53, a belt 54, a fixed shaft 55, a transmission unit 6, a driving gear 61, a transmission gear 62, a shifting fork 63, a square rod 64, a rotating shaft 65, a motor 66, a connecting plate 7, a fixing hole 8, a fixing pin 9, a push rod 10, a universal wheel 11, a pull rod 12, a supporting plate 13, a wire guide hole 14 and a bearing 15.
Detailed Description
Example 1
As shown in fig. 1 to 3, the utility model discloses an electromechanical engineering cable winding and unwinding device, which adopts the technical scheme that the device comprises a bottom plate 1, a cable winding and unwinding unit 5 and a transmission unit 6;
bottom plate 1: a storage battery 2 and a switch 3 are fixed on the right front side of the upper surface, the output end of the storage battery 2 is electrically connected with the input end of the switch 3, and fixing plates 4 are fixed on the front side and the rear side of the left side of the upper surface of the bottom plate 1;
cable winding and unwinding unit 5: comprises a cable reel 51, a belt pulley 52, a mounting seat 53, a belt 54 and a fixed shaft 55, wherein the mounting seat 53 is U-shaped, and three mounting seats 53 are fixed on the right side of the upper surface of the bottom plate 1 at equal intervals, the upper sides of the front and rear sides in the three mounting seats 53 are respectively and rotatably connected with the middle parts of the front and rear sides of the three cable drums 51, two ends of a fixed shaft 55 are respectively and fixedly connected with the right sides of the opposite sides of the two fixed plates 4, six belt pulleys 52 are arranged, the front sides of the three belt pulleys 52 on the right side are respectively and rotatably connected with the upper sides of the rear sides of the three mounting seats 53, and the shaft at the middle of the front side of the three belt pulleys 52 at the right side passes through the through hole at the upper side of the rear side of the mounting seat 53 to be fixedly connected with the middle of the rear side of the three cable drums 51, the inner side of the three belt pulleys 52 at the left side is rotatably connected with the side of the fixed shaft 55, the three belt pulleys 52 on the left side and the three belt pulleys 52 on the right side are connected through three belts 54 respectively;
the transmission unit 6: the cross section of the rotating shaft 65 is triangular, two ends of the rotating shaft 65 are respectively and rotatably connected with the middle parts of the opposite side surfaces of the two fixing plates 4, the rear end of the rotating shaft 65 penetrates through triangular sliding holes in the middle parts of the front side surfaces of the three driving gears 61, the three driving gears 62 are arranged, the three driving gears 62 are sleeved on the outer side of the fixing shaft 55, the rear side surfaces of the three driving gears 62 are respectively and fixedly connected with the front side surfaces of the three belt pulleys 52 on the left side, the three driving gears 62 are respectively meshed with the three driving gears 61, two ends of the square rod 64 are fixedly connected with the left sides of the opposite side surfaces of the two fixing plates 4, the rear end of the square rod 64 penetrates through the square sliding holes on the left side surfaces of the front sides of the three shifting forks 63, the three shifting forks 63 are U-shaped, and the three shifting forks 63 are respectively positioned on the outer sides of the three driving gears 61, the motor 66 is arranged in the middle of the front side of the fixing plate 4 on the front side, the output shaft of the motor 66 penetrates through the through hole in the middle of the front side of the fixing plate 4 on the front side and is fixedly connected with the front end of the rotating shaft 65, the input end of the motor 66 is electrically connected with the output end of the switch 3, the rotating shaft 65 and the driving gear 61 are driven by the motor 66 to rotate, the three driving gears 61 drive the three transmission gears 62 on the left side and the three belt pulleys 52 on the left side to rotate, the three belt pulleys 63 on the right side are driven by the belt 54 to rotate and drive the three cable drums 51 to rotate, thereby simultaneously winding and unwinding the three cables, reducing the time consumed by winding the plurality of cables, effectively improving the efficiency of cable winding and unwinding, being convenient to use, and the driving gear 61 can also move on the rotating shaft 65, so that people can adjust the position of the driving gear 61 and separate or mesh the driving gear 61 and the transmission gears 52, thereby realizing the retraction of single, two or three cables and being convenient for use.
As a preferred technical scheme of the utility model, the gear shifting device further comprises three connecting plates 7, three fixing holes 8 and three fixing pins 9, wherein the three connecting plates 7 are respectively fixed at the lower sides of the left side surfaces of the three shifting forks 63, the three fixing holes 8 are arranged at the left side of the upper surface of the bottom plate 1, the three fixing pins 9 are arranged, the three fixing pins 9 are respectively inserted into through holes in the upper surfaces of the three connecting plates 7, the three fixing pins 9 respectively correspond to the three fixing holes 8, the driving gear 61 can be fixed after the driving gear 61 is meshed with the transmission gear 62 through the fixing pins 9 and the fixing holes 8, and the driving gear 61 is prevented from shifting when the transmission gear 62 is driven to rotate by the driving gear 61.
As a preferred technical scheme of the utility model, the gear transmission mechanism further comprises three push rods 10, wherein the push rods 10 are L-shaped, the lower ends of the three push rods 10 are respectively fixedly connected with the left sides of the upper surfaces of the three shifting forks 63, and the shifting forks 63 can be conveniently pushed to move through the push rods 10 to adjust the position of the driving gear.
As a preferred technical scheme of the utility model, the cable winding and unwinding device further comprises four universal wheels 11, wherein the four universal wheels 11 are respectively arranged at four corners of the lower surface of the bottom plate 1, and the cable winding and unwinding device can be conveniently moved through the universal wheels 11 and is convenient to use when cables are laid.
As a preferred technical scheme of the utility model, the temperature-adjustable temperature base plate further comprises a pull rod 12, wherein the pull rod 12 is T-shaped, the lower end of the pull rod 12 is fixedly connected with the left side of the upper surface of the base plate 1, and people can conveniently pull or push the base plate 1 to move through the pull rod 12.
As a preferred technical scheme of the present invention, the cable reel further comprises three support plates 13 and three wire guiding holes 14, the three support plates 13 are respectively fixed on the right side of the upper surface of the bottom plate 1, the three support plates 13 are respectively located on the right sides of the three cable reels 51, the wire guiding holes 14 are respectively formed in the side surfaces of the upper ends of the three support plates 13, the cable can be guided when the cable reels 51 receive and release the cable through the wire guiding holes 14 in the support plates 13, and the cable is prevented from being separated from the cable reels 51 due to swinging when the cable is received and released.
As a preferred technical scheme of the utility model, the belt conveyor further comprises three bearings 15, the three bearings 15 are provided, inner rings of the three bearings 15 are respectively and fixedly connected with the two ends of the fixed shaft 55 and the side surface of the middle part, outer rings of the three bearings 15 are respectively and fixedly connected with the inner side surfaces of the three belt pulleys 52 on the right side, the smoothness of rotation of the three belt pulleys 52 on the left side can be improved through the bearings 15, and the situation of blocking is avoided.
The working principle of the utility model is as follows: when three cables need to be simultaneously collected and released, the push rod 10 is held, the shifting fork 63 is pushed, the shifting fork 63 pushes the driving gear 61 to move, the driving gear 61 moves to a proper position on the rotating shaft 65, the driving gear 61 is meshed with the transmission gears 62, the operations are repeated, the three driving gears 61 are meshed with the three transmission gears 62, the fixing pins 9 on the connecting plate 7 are inserted into the fixing holes 8, the shifting fork 63 is fixed, the motor 66 is controlled to work through the switch 3, the output shaft of the motor 66 drives the rotating shaft 65 to rotate, the rotating shaft 64 simultaneously drives the three driving gears 61 to rotate, the three driving gears 61 drive the three transmission gears 62 to rotate, the three transmission gears 61 drive the three belt pulleys 52 on the left side to rotate, the three belt pulleys 52 on the right side are rotated through the belt 54, and the three belt pulleys 52 on the right side simultaneously drive the three cable trays 51 to rotate, when two or one cable is required to be wound and unwound, the other one or two fixing pins 9 can be pulled out, and the shifting fork 63 at the corresponding position is pushed to separate the driving gear 61 from the transmission gear 62, so that the winding and unwinding of the single or two cables can be carried out.
The circuit connections involved in the present invention are conventional means employed by those skilled in the art, can be technically inspired by limited trials, and are widely used prior art.
The motor 66 used herein is a three-phase reduction motor, and components not described in detail are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. The cable winding and unwinding device for the electromechanical engineering is characterized by comprising a bottom plate (1), a cable winding and unwinding unit (5) and a transmission unit (6);
base plate (1): a storage battery (2) and a switch (3) are fixed on the right front side of the upper surface, the output end of the storage battery (2) is electrically connected with the input end of the switch (3), and fixing plates (4) are fixed on the front side and the rear side of the left side of the upper surface of the bottom plate (1);
cable storage unit (5): comprises cable drums (51), belt pulleys (52), mounting seats (53), belts (54) and fixing shafts (55), wherein the mounting seats (53) are U-shaped, the three mounting seats (53) are fixed on the right side of the upper surface of the bottom plate (1) at equal intervals, the upper sides of the front side and the rear side in the three mounting seats (53) are respectively and rotatably connected with the middle parts of the front side and the rear side of the three cable drums (51), the two ends of the fixing shafts (55) are respectively and fixedly connected with the right sides of the opposite sides of the two fixing plates (4), the belt pulleys (52) are provided with six belt pulleys, the front side of the three belt pulleys (52) on the right side is respectively and rotatably connected with the upper sides of the rear sides of the three mounting seats (53), the shaft in the middle part of the front side of the three belt pulleys (52) on the right side penetrates through holes on the upper sides of the rear sides of the mounting seats (53) to be fixedly connected with the middle parts of the rear sides of the three cable drums (51), the inner sides of the three belt pulleys (52) on the left side are rotatably connected with the sides of the fixing shafts (55), the three belt pulleys (52) on the left side and the three belt pulleys (52) on the right side are connected through three belts (54) respectively;
transmission unit (6): the transmission device comprises a driving gear (61), three transmission gears (62), a shifting fork (63), a square rod (64), a rotating shaft (65) and a motor (66), wherein the cross section of the rotating shaft (65) is triangular, two ends of the rotating shaft (65) are respectively connected with the middle parts of the opposite side surfaces of two fixing plates (4) in a rotating mode, the rear end of the rotating shaft (65) penetrates through triangular sliding holes in the middle parts of the front side surfaces of the three driving gears (61), the three transmission gears (62) are arranged in three, the three transmission gears (62) are sleeved on the outer side of a fixing shaft (55), the rear side surfaces of the three transmission gears (62) are respectively fixedly connected with the front side surfaces of three left belt pulleys (52), the three transmission gears (62) are respectively meshed with the three driving gears (61), two ends of the square rod (64) are fixedly connected with the left side surfaces of the two opposite side surfaces of the two fixing plates (4), and the rear end of the square rod (64) penetrates through a square sliding hole in the front side surface of the three shifting fork (63), three shift fork (63) are the U type, and three shift fork (63) are located the outside of three driving gear (61) respectively, motor (66) are installed in the middle part of fixed plate (4) leading flank of front side, and the output shaft of motor (66) passes the through-hole in fixed plate (4) leading flank middle part of front side and the front end fixed connection of axis of rotation (65), the input of motor (66) is connected with the output electricity of switch (3).
2. The electromechanical engineering cable pay-off and take-up device of claim 1, wherein: still include connecting plate (7), fixed orifices (8) and fixed pin (9), connecting plate (7) are equipped with threely, and three connecting plate (7) are fixed respectively at the downside of three shift fork (63) left surface, fixed orifices (8) are equipped with threely, and the left side at bottom plate (1) upper surface is seted up in three fixed orifices (8), fixed pin (9) are equipped with threely, and insert respectively in the through-hole of three connecting plate (7) upper surface three fixed pin (9), and three fixed pin (9) correspond with three fixed orifices (8) respectively.
3. The electromechanical engineering cable pay-off and take-up device of claim 1, wherein: still include push rod (10), push rod (10) are the L type, and push rod (10) are equipped with threely, the lower extreme of three push rod (10) respectively with the left side fixed connection of three shift fork (63) upper surface.
4. The electromechanical engineering cable pay-off and take-up device of claim 1, wherein: still include universal wheel (11), universal wheel (11) are equipped with four, and four corners at bottom plate (1) lower surface are installed respectively to four universal wheels (11).
5. The electromechanical engineering cable pay-off and take-up device of claim 1, wherein: the novel shoe sole is characterized by further comprising a pull rod (12), wherein the pull rod (12) is T-shaped, and the lower end of the pull rod (12) is fixedly connected with the left side of the upper surface of the bottom plate (1).
6. The electromechanical engineering cable winding and unwinding device of claim 1, characterized in that: still include backup pad (13) and wire guide (14), backup pad (13) are equipped with threely, and three backup pad (13) are fixed respectively on the right side of bottom plate (1) upper surface, and three backup pad (13) are located the right side of three cable drum (51) respectively, and wire guide (14) have all been seted up to the side of three backup pad (13) upper end.
7. The electromechanical engineering cable pay-off and take-up device of claim 1, wherein: still include bearing (15), bearing (15) are equipped with threely, the inner circle of three bearing (15) respectively with the side fixed connection at fixed axle (55) both ends and middle part, the outer lane of three bearing (15) respectively with the medial surface fixed connection of three belt pulley (52) on right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655491.1U CN216471576U (en) | 2021-11-02 | 2021-11-02 | Electromechanical engineering cable winding and unwinding devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655491.1U CN216471576U (en) | 2021-11-02 | 2021-11-02 | Electromechanical engineering cable winding and unwinding devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216471576U true CN216471576U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122655491.1U Active CN216471576U (en) | 2021-11-02 | 2021-11-02 | Electromechanical engineering cable winding and unwinding devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216471576U (en) |
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2021
- 2021-11-02 CN CN202122655491.1U patent/CN216471576U/en active Active
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Effective date of registration: 20240411 Address after: No.83 Zhengdong Road, Qiaodong District, Shijiazhuang City, Hebei Province, 054005 Patentee after: Gao Qiang Country or region after: China Address before: 471000 shop 1, east of Building 1, minxinyuan community, No. 9, jinchengzhai street, Luolong District, Luoyang City, Henan Province Patentee before: Henan Fujiang construction and installation Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240531 Address after: Room 304-51, 3rd Floor, Building 1, No. 1 Energy East Road, Changping District, Beijing, 102200 Patentee after: Beijing Ruichen Yongyi Construction Co.,Ltd. Country or region after: China Address before: No.83 Zhengdong Road, Qiaodong District, Shijiazhuang City, Hebei Province, 054005 Patentee before: Gao Qiang Country or region before: China |
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