CN111335723B - Automatic electric power transmission pole that goes up and down - Google Patents
Automatic electric power transmission pole that goes up and down Download PDFInfo
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- CN111335723B CN111335723B CN202010296906.8A CN202010296906A CN111335723B CN 111335723 B CN111335723 B CN 111335723B CN 202010296906 A CN202010296906 A CN 202010296906A CN 111335723 B CN111335723 B CN 111335723B
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- lifting
- rod
- fixedly arranged
- rotating shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000009826 distribution Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
- E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an automatic lifting electric power transmission rod, which comprises a machine body, wherein a lifting cavity is arranged in the machine body, the machine body is provided with a second sliding groove, a lifting ring is connected in the second sliding groove in a sliding manner, a bearing plate is fixedly arranged on the upper side of the lifting ring, a transmission rod is fixedly arranged on the upper side surface of the bearing plate, an adjusting cavity and a rotating cavity are arranged in the transmission rod, and a lifting device of the lifting rod is arranged in the lifting cavity.
Description
Technical Field
The invention relates to the related field of power grids, in particular to an automatic lifting power transmission rod.
Background
At present, with the development of society, the demand of electricity for people is increasing, the construction and maintenance of power networks are more and more important, telegraph poles need to be erected in power transportation to connect electric wires to realize power transmission, and when the electric wires are maintained, workers need to climb onto the telegraph poles or use lifting equipment, but the modes need to work at high altitude, have potential safety hazards, and have adverse effects on the personal safety of the operators, and the workers below can be affected.
Disclosure of Invention
Aiming at the technical defects, the invention provides an automatic lifting electric power transmission rod which can overcome the defects.
The invention discloses an automatic lifting electric power transmission rod, which comprises a machine body, wherein a lifting cavity is arranged in the machine body, the machine body is provided with a second sliding groove, a lifting circular ring is connected in the second sliding groove in a sliding manner, a bearing plate is fixedly arranged on the upper side of the lifting circular ring, a transmission rod is fixedly arranged on the upper side surface of the bearing plate, an adjusting cavity and a rotating cavity are arranged in the transmission rod, and a lifting device of the lifting rod is arranged in the lifting cavity;
the lifting device comprises a main motor fixedly arranged on the lower side wall of the lifting cavity, the main motor is in power connection with a motor shaft, a first bevel gear is fixedly arranged on the motor shaft, a first rotating shaft is rotatably connected with the rear side wall of the lifting cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the front side of the first rotating shaft, a first chain wheel is fixedly arranged on the rear side of the first rotating shaft, a second rotating shaft is rotatably connected with the rear side wall of the lifting cavity, a second chain wheel is fixedly arranged on the rear side of the second rotating shaft, a first chain is connected between the second chain wheel and the first chain wheel, a fourth chain wheel and a fifth chain wheel are fixedly arranged in the middle of the second rotating shaft, a first gear is fixedly arranged on the front side of the second rotating shaft, a third rotating shaft and a fourth rotating shaft are rotatably connected with the rear side wall of the lifting cavity, a third chain wheel is fixedly arranged on the rear side of the third rotating shaft, and a second, a sixth chain wheel is fixedly arranged in the middle of the fourth rotating shaft, a third chain is connected between the sixth chain wheel and the fifth chain wheel, a second gear is fixedly arranged on the front side of the third rotating shaft, and a third gear is fixedly arranged on the front side of the fourth rotating shaft;
an air cylinder cavity is arranged on the lower side of the machine body, and an adjusting device of a telescopic wire is arranged in the adjusting cavity.
Preferably, the lower side wall of the lifting cavity is provided with a first chute, a lifting plate is connected in the first chute in a sliding manner, a right lifting rod is fixedly arranged on the upper side of the lifting plate, two connecting rods are fixedly arranged on the right lifting rod, a left lifting rod is fixedly arranged on the connecting rods, a supporting rod fixedly connected to the lower side wall of the lifting cavity is connected in the left lifting rod in a sliding manner, the left side wall and the right side wall of the lifting cavity are respectively provided with a third chute, two telescopic rods sliding in the third chutes are respectively connected in the right lifting rod and the left lifting rod in a sliding manner, a second spring is connected between each telescopic rod and the right lifting rod and the left lifting rod respectively, a main air pump is fixedly arranged on the lower side of the machine body, a pushing air cylinder is fixedly arranged on the left side wall of the air cylinder cavity, an air pipe is connected between each pushing air cylinder and the, the pushing plate is fixedly provided with a pushing rod, a fourth chute supporting rod is arranged in the lifting plate, and a lifting sliding block sliding in the fourth chute supporting rod is fixedly arranged on the right side of the pushing rod.
Preferably, adjusting device installs including rotating the fifth pivot of rotating chamber preceding lateral wall, the second runner has set firmly in the fifth pivot, sliding connection has the second slide bar that four circumferences distribute in the second runner, every the second slide bar with be connected with the third spring between the second runner, every the second slide bar has set firmly the second friction plate, fourth pivot rear side has set firmly first runner, sliding connection has the first slide bar that four circumferences distribute in the first runner, every first slide bar with be connected with first spring between the first runner, every set firmly first friction plate on the first slide bar, first friction plate with be connected with driving belt between the second friction plate, the fifth pivot rear side has set firmly the friction wheel, the last rotating connection of friction wheel has skidded the runner.
Preferably, a fixed rod is fixedly arranged on the slipping rotating wheel, a telegraph pole is connected in the fixed rod in a sliding mode, a fourth spring is connected between the telegraph pole and the fixed rod, and an electric wire is fixed on the telegraph pole.
The beneficial effects are that: the utility model provides an automatic electric power transmission pole that goes up and down, wherein elevating gear can fall wire pole and electric wire to low department automatically, makes things convenient for staff's maintenance, and the electric wire keeps connecting when adjusting device can guarantee that the wire pole goes up and down, and this electric power transmission pole can make the staff need not the aerial work when the maintenance electric wire, can reduce the risk that aerial work exists, reduces personal safety accident.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of an automatic lifting power transmission rod of the present invention, which is a front view;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
fig. 4 is a cross-sectional view taken along the line C-C of fig. 3 in accordance with the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to an automatic lifting electric power transmission rod, which comprises a machine body 10, wherein a lifting cavity 65 is arranged in the machine body 10, the machine body 10 is provided with a second sliding groove 59, a lifting ring 39 is connected in the second sliding groove 59 in a sliding manner, a bearing plate 40 is fixedly arranged on the upper side of the lifting ring 39, a transmission rod 47 is fixedly arranged on the upper side surface of the bearing plate 40, an adjusting cavity 67 and a rotating cavity 66 are arranged in the transmission rod 47, a lifting device 68 of a lifting rod is arranged in the lifting cavity 65, the lifting device 68 comprises a main motor 11 fixedly arranged on the lower side wall of the lifting cavity 65, the main motor 11 is in power connection with a motor shaft 12, a first bevel gear 13 is fixedly arranged on the motor shaft 12, a first rotating shaft 15 is rotatably connected on the rear side wall of the lifting cavity 65, a second bevel gear 14 meshed with the first bevel gear 13 is fixedly arranged on the front side of the first rotating shaft 15, a first chain wheel 16 is fixedly arranged on the rear, a second rotating shaft 18 is rotatably connected to the rear side wall of the lifting cavity 65, a second chain wheel 21 is fixedly arranged on the rear side of the second rotating shaft 18, a first chain 17 is connected between the second chain wheel 21 and the first chain wheel 16, a fourth chain wheel 27 and a fifth chain wheel 28 are fixedly arranged in the middle of the second rotating shaft 18, a first gear 22 is fixedly arranged on the front side of the second rotating shaft 18, a third rotating shaft 19 and a fourth rotating shaft 20 are rotatably connected to the rear side wall of the lifting cavity 65, a third chain wheel 25 is fixedly arranged on the rear side of the third rotating shaft 19, a second chain 26 is connected between the third chain wheel 25 and the fourth chain wheel 27, a sixth chain wheel 30 is fixedly arranged in the middle of the fourth rotating shaft 20, a third chain 29 is connected between the sixth chain wheel 30 and the fifth chain wheel 28, a second gear 23 is fixedly arranged on the front side of the third rotating shaft 19, a third gear 24 is fixedly arranged on the front side of the fourth rotating shaft 20, a cylinder cavity 70 is arranged on the lower side of, an adjusting device 69 for telescopic wires is arranged in the adjusting cavity 67.
Beneficially, a first sliding chute 58 is disposed on a lower side wall of the lifting cavity 65, a lifting plate 44 is slidably connected in the first sliding chute 58, a right lifting rod 46 is fixedly disposed on an upper side of the lifting plate 44, two connecting rods 38 are fixedly disposed on the right lifting rod 46, a left lifting rod 36 is fixedly disposed on the connecting rods 38, a supporting rod 64 fixedly connected to a lower side wall of the lifting cavity 65 is slidably connected in the left lifting rod 36, third sliding chutes 61 are respectively disposed on left and right side walls of the lifting cavity 65, two telescopic rods 37 sliding in the third sliding chutes 61 are respectively slidably connected in the right lifting rod 46 and the left lifting rod 36, a second spring 63 is connected between the telescopic rods 37 and the right lifting rod 46 and the left lifting rod 36, a main air pump 60 is fixedly disposed on a lower side of the machine body 10, a pushing air cylinder 41 is fixedly disposed on a left side wall of the air cylinder cavity 70, and an air pipe is connected between the pushing air cylinder 41 and the main, a push plate 42 is slidably connected to the push cylinder 41, a push rod 43 is fixedly arranged on the push plate 42, a fourth chute support rod 64 is arranged in the lifting plate 44, a lifting slider 45 sliding in the fourth chute support rod 64 is fixedly arranged on the right side of the push rod 43, so that the main motor 11 is started, the motor shaft 12 rotates to drive the first bevel gear 13 to rotate, then the second bevel gear 14 and the first sprocket 16 to rotate, the second sprocket 21, the fourth sprocket 27, the fifth sprocket 28 and the first gear 22 are driven to rotate by the first chain 17, the third sprocket 25 and the second gear 23 are driven to rotate by the fourth sprocket 27 by the second chain 26, the sixth sprocket 30 and the third sprocket 24 are driven to rotate by the fifth sprocket 28 by the third chain 29, and the main air pump 60 is started, the main air pump 60 is ventilated in the pushing cylinder 41, controls the pushing plate 42 and the pushing rod 43 to move, pushes the lifting plate 44 to move, drives the right lifting rod 46 and the left lifting rod 36 to move, the telescopic bars 37 slide in the left and right lifting rods 36 and 46 respectively, when the left lifting rod 36 is in contact engagement with the first gear 22, the second gear 23 and the third gear 24, the first gear 22, the second gear 23 and the third gear 24 drive the left lifting rod 36 and the right lifting rod 46 to ascend, push the bearing plate 40 and the conveying rod 47 to ascend, when the right lifting rod 46 is in contact engagement with the first gear 22, the first gear 22 drives the right lifting rod 46 to descend, the bearing plate 40 and the conveyor bar 47 descend, and the lifting ring 39 slides in the second chute 59.
Advantageously, the adjusting device 69 comprises a fifth rotating shaft 48 rotatably mounted on a front side wall of the rotating chamber 66, a second rotating wheel 49 is fixedly arranged on the fifth rotating shaft 48, four second sliding rods 51 distributed circumferentially are slidably connected in the second rotating wheel 49, a third spring 50 is connected between each second sliding rod 51 and the second rotating wheel 49, a second friction plate 52 is fixedly arranged on each second sliding rod 51, a first rotating wheel 31 is fixedly arranged on a rear side of the fourth rotating shaft 20, four first sliding rods 33 distributed circumferentially are slidably connected in the first rotating wheel 31, a first spring 32 is connected between each first sliding rod 33 and the first rotating wheel 31, a first friction plate 34 is fixedly arranged on each first sliding rod 33, a transmission belt 35 is connected between each first friction plate 34 and the second friction plate 52, and a friction wheel 53 is fixedly arranged on a rear side of the fifth rotating shaft 48, a slipping wheel 54 is rotatably connected to the friction wheel 53, so that the sixth sprocket 30 drives the first wheel 31 to rotate, the second wheel 49 and the friction wheel 53 are driven to rotate by the transmission belt 35, when the conveying rod 47 is lifted, the first sliding rod 33 slides in the first wheel 31, the second sliding rod 51 slides in the second wheel 49, the length of the transmission belt 35 is changed, the first spring 32 and the third spring 50 ensure the tension of the transmission belt 35, the friction wheel 53 drives the slipping wheel 54 and the fixing rod 55 to rotate, and when the fixing rod 55 is rotated to a vertical position, the slipping wheel 54 rotates and slips on the friction wheel 53.
Advantageously, the slipping wheel 54 is provided with a fixed rod 55, a utility pole 57 is slidably connected in the fixed rod 55, a fourth spring 56 is connected between the utility pole 57 and the fixed rod 55, a wire is fixed on the utility pole 57, so that the first gear 22, the second gear 23 and the third gear 24 can drive the left lifting rod 36 to stably lift and bear the gravity when lifting, the first gear 22 lowers the right lifting rod 46, when the conveying rod 47 is lifted, the wire pulls the utility pole 57 to slide in the fixed rod 55, the fixed rod 55 rotates, and the fourth spring 56 restores the utility pole 57 to the fixed rod 55.
In the initial state, the main motor 11 and the main air pump 60 are not activated, the fixing lever 55 is vertical, and the left lifting lever 36 is engaged with the first gear 22, the second gear 23, and the third gear 24.
When the work is started, the main motor 11 is started, the motor shaft 12 rotates to drive the first bevel gear 13 to rotate, then the second bevel gear 14 and the first chain wheel 16 to rotate, the second chain wheel 21, the fourth chain wheel 27, the fifth chain wheel 28 and the first gear 22 are driven to rotate by the first chain 17, the third chain wheel 25 and the second gear 23 are driven to rotate by the fourth chain wheel 27 through the second chain 26, the sixth chain wheel 30 and the third gear 24 are driven to rotate by the fifth chain wheel 28 through the third chain 29, the main air pump 60 is started, the main air pump 60 is communicated with the pushing air cylinder 41 to control the pushing plate 42 and the pushing rod 43 to move, the pushing lifting plate 44 moves to drive the right lifting rod 46 and the left lifting rod 36 to move, the telescopic rod 37 slides in the left lifting rod 36 and the right lifting rod 46 respectively, and when the left lifting rod 36 is in contact engagement with the first gear 22, the second gear 23 and the third gear 24, the first gear 22, the second bevel gear 23 and, The second gear 23 and the third gear 24 drive the left lifting rod 36 and the right lifting rod 46 to ascend, so as to push the bearing plate 40 and the conveying rod 47 to ascend, when the right lifting rod 46 is in contact engagement with the first gear 22, the first gear 22 drives the right lifting rod 46 to descend, the bearing plate 40 and the conveying rod 47 descend, the lifting ring 39 slides in the second chute 59, the sixth sprocket 30 drives the first rotating wheel 31 to rotate, the second rotating wheel 49 and the friction wheel 53 are driven to rotate through the transmission belt 35, when the conveying rod 47 ascends, the first sliding rod 33 slides in the first rotating wheel 31, the second sliding rod 51 slides in the second rotating wheel 49, so as to change the length of the transmission belt 35, the first spring 32 and the third spring 50 ensure that the transmission belt 35 is tensioned, the friction wheel 53 drives the sliding rotating wheel 54 and the fixed rod 55 to rotate, when the fixed rod 55 rotates to a vertical position, the sliding wheel 54 slides on the friction wheel 53, the first gear 22, the second gear 23 and the third gear 24 can drive the left lifting rod 36 to stably lift and bear the gravity when lifting, the first gear 22 enables the right lifting rod 46 to descend, when the conveying rod 47 lifts, the electric wire pulls the telegraph pole 57 to slide in the fixing rod 55, the fixing rod 55 rotates, and the fourth spring 56 enables the telegraph pole 57 to return to the fixing rod 55.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides an automatic electric power transmission pole that goes up and down, includes the organism, its characterized in that: the machine body is provided with a lifting cavity, the machine body is provided with a second chute, a lifting ring is connected in the second chute in a sliding manner, a bearing plate is fixedly arranged on the upper side of the lifting ring, a conveying rod is fixedly arranged on the upper side surface of the bearing plate, an adjusting cavity and a rotating cavity are arranged in the conveying rod, and a lifting device of the lifting rod is arranged in the lifting cavity;
the lifting device comprises a main motor fixedly arranged on the lower side wall of the lifting cavity, the main motor is in power connection with a motor shaft, a first bevel gear is fixedly arranged on the motor shaft, a first rotating shaft is rotatably connected with the rear side wall of the lifting cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the front side of the first rotating shaft, a first chain wheel is fixedly arranged on the rear side of the first rotating shaft, a second rotating shaft is rotatably connected with the rear side wall of the lifting cavity, a second chain wheel is fixedly arranged on the rear side of the second rotating shaft, a first chain is connected between the second chain wheel and the first chain wheel, a fourth chain wheel and a fifth chain wheel are fixedly arranged in the middle of the second rotating shaft, a first gear is fixedly arranged on the front side of the second rotating shaft, a third rotating shaft and a fourth rotating shaft are rotatably connected with the rear side wall of the lifting cavity, a third chain wheel is fixedly arranged on the rear side of the third rotating shaft, and a second, a sixth chain wheel is fixedly arranged in the middle of the fourth rotating shaft, a third chain is connected between the sixth chain wheel and the fifth chain wheel, a second gear is fixedly arranged on the front side of the third rotating shaft, and a third gear is fixedly arranged on the front side of the fourth rotating shaft;
an air cylinder cavity is arranged on the lower side of the machine body, and an adjusting device of a telescopic wire is arranged in the adjusting cavity.
2. The automatic lifting power transmission rod of claim 1, wherein: the lower side wall of the lifting cavity is provided with a first chute, a lifting plate is connected in the first chute in a sliding manner, a right lifting rod is fixedly arranged on the upper side of the lifting plate, two connecting rods are fixedly arranged on the right lifting rod, a left lifting rod is fixedly arranged on the connecting rods, a supporting rod fixedly connected to the lower side wall of the lifting cavity is connected in the left lifting rod in a sliding manner, third chutes are respectively arranged on the left side wall and the right side wall of the lifting cavity, two telescopic rods sliding in the third chutes are respectively connected in the right lifting rod and the left lifting rod in a sliding manner, second springs are respectively connected between the telescopic rods and the right lifting rod and the left lifting rod, a main air pump is fixedly arranged on the lower side of the machine body, a pushing air cylinder is fixedly arranged on the left side wall of the air cylinder cavity, an air pipe is connected between the pushing air cylinder and the main, the pushing plate is fixedly provided with a pushing rod, a fourth chute supporting rod is arranged in the lifting plate, and a lifting sliding block sliding in the fourth chute supporting rod is fixedly arranged on the right side of the pushing rod.
3. The automatic lifting power transmission rod of claim 1, wherein: adjusting device installs including rotating the fifth pivot of rotating chamber front side wall, the second runner has set firmly in the fifth pivot, sliding connection has the second slide bar that four circumference distribute in the second runner, every the second slide bar with be connected with the third spring between the second runner, every the second slide bar has set firmly the second friction plate, fourth pivot rear side has set firmly first runner, sliding connection has the first slide bar of four circumference distributions in the first runner, every first slide bar with be connected with first spring between the first runner, every set firmly first friction plate on the first slide bar, first friction plate with be connected with driving belt between the second friction plate, fifth pivot rear side has set firmly the friction pulley, the rotation is connected with the runner of skidding on the friction pulley.
4. The automatic lifting power transmission rod of claim 3, wherein: the slipping rotating wheel is fixedly provided with a fixed rod, a telegraph pole is connected to the fixed rod in a sliding mode, a fourth spring is connected between the telegraph pole and the fixed rod, and an electric wire is fixed on the telegraph pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296906.8A CN111335723B (en) | 2020-04-15 | 2020-04-15 | Automatic electric power transmission pole that goes up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296906.8A CN111335723B (en) | 2020-04-15 | 2020-04-15 | Automatic electric power transmission pole that goes up and down |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111335723A CN111335723A (en) | 2020-06-26 |
| CN111335723B true CN111335723B (en) | 2020-10-27 |
Family
ID=71184840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296906.8A Active CN111335723B (en) | 2020-04-15 | 2020-04-15 | Automatic electric power transmission pole that goes up and down |
Country Status (1)
| Country | Link |
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| CN (1) | CN111335723B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756636B (en) * | 2021-08-08 | 2022-10-14 | 陕西通信建设有限公司 | Anti-interference 5G signal enhancement system and application method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4213885B2 (en) * | 2001-09-27 | 2009-01-21 | デンヨー株式会社 | Telescopic support |
| ES2342038B1 (en) * | 2008-04-22 | 2011-06-09 | Juan Jesus Paez Castilla | TELESCOPIC ELEVATOR ANDAMIO. |
| CN209723800U (en) * | 2019-01-07 | 2019-12-03 | 鲁晓斌 | A kind of electric up-down well site integrated digital equipment communication pole |
| CN209906285U (en) * | 2019-03-21 | 2020-01-07 | 李焱 | Adjustable lifting workbench for electric power construction |
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2020
- 2020-04-15 CN CN202010296906.8A patent/CN111335723B/en active Active
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| CN111335723A (en) | 2020-06-26 |
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Effective date of registration: 20240407 Address after: 072154 Yingu village, nanhancun Town, Mancheng District, Baoding City, Hebei Province Patentee after: Hebei Dingfei cement products manufacturing Co.,Ltd. Country or region after: China Address before: 321000 159 Qiaoxi village, Chian Town, Yiwu City, Jinhua City, Zhejiang Province Patentee before: Yiwu Wanju Electronics Co.,Ltd. Country or region before: China |
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