CN111155820B - Single tube construction communication tower convenient to maintenance - Google Patents
Single tube construction communication tower convenient to maintenance Download PDFInfo
- Publication number
- CN111155820B CN111155820B CN202010013394.XA CN202010013394A CN111155820B CN 111155820 B CN111155820 B CN 111155820B CN 202010013394 A CN202010013394 A CN 202010013394A CN 111155820 B CN111155820 B CN 111155820B
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- tower
- sliding
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- seat
- groove
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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
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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
Abstract
The invention relates to a single-tube structure communication tower convenient to maintain, which comprises a bottom plate, a tower body device and a tower top frame, wherein the tower body device is installed at the upper end of the bottom plate, the outer side of the upper end of the tower body device is connected with the tower top frame in a sliding fit mode, the tower top frame is of an L-shaped annular structure in cross section, and liquid leakage holes are uniformly formed in the upper end surface of the tower top frame. The invention can solve the problems that when a worker maintains the communication base station at the top end of the communication tower, the maintenance effect is poor, the efficiency is low, the worker usually climbs to the top end of the communication tower to maintain the communication base station, so that the worker has greater potential safety hazards, and the existing communication tower has poor sealing effect and low protective performance in the use process, is easily damaged by the influence of the external environment, influences the normal service life of equipment and the like.
Description
Technical Field
The invention relates to the field of single-tube structure communication towers, in particular to a single-tube structure communication tower convenient to maintain.
Background
The communication tower belongs to a signal transmitting tower, also called a signal transmitting tower or a signal tower, and mainly has the function of supporting signal transmission and supporting a signal transmitting antenna. The communication tower is composed of tower body, platform, lightning rod, ladder stand, antenna support and other steel members, and is subjected to hot galvanizing and anticorrosive treatment, and is mainly used for transmission and emission of microwave, ultrashort wave and wireless network signals. In order to ensure the normal operation of the wireless communication system, the communication antenna is usually disposed at the highest point to increase the service radius, so as to achieve the desired communication effect.
At present, the existing communication tower has the following defects when in use: 1. when the communication base station at the top end of the communication tower is maintained, the maintenance effect is poor, the efficiency is low, and generally, a worker climbs to the top end of the communication tower to maintain the communication base station, so that the worker has great potential safety hazard; 2. the existing communication tower is poor in sealing effect and low in protective performance in the using process, and the communication tower is easily influenced by the external environment to be damaged, so that the normal service life of equipment is influenced.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problems that when a worker maintains the communication base station at the top end of the communication tower, the maintenance effect is poor, the efficiency is low, the worker usually climbs to the top end of the communication tower to maintain the communication base station, so that the worker has greater potential safety hazards, and the existing communication tower has poor sealing effect and low protective performance in the use process, is easily damaged by the influence of the external environment, influences the normal service life of equipment and the like.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the communication tower with the single-pipe structure convenient to maintain comprises a bottom plate, a tower body device and a tower top frame, wherein the tower body device is installed at the upper end of the bottom plate, the outer side of the upper end of the tower body device is connected with the tower top frame in a sliding fit mode, the tower top frame is of an L-shaped annular structure in cross section, liquid leakage holes are uniformly formed in the upper end face of the tower top frame, and a communication base station is installed on the tower top frame.
The tower body device comprises a mounting seat, a fixing pipe, a groove, a sealing mechanism, an adjusting mechanism and a clamping mechanism, wherein the mounting seat is arranged on a bottom plate through a screw, the section of the mounting seat is of a U-shaped structure, the middle part of the upper end of the mounting seat is provided with the fixing pipe which is of a cylindrical structure, a cavity is arranged in the fixing pipe, the groove is symmetrically arranged on the fixing pipe, the sealing mechanism is uniformly arranged in the groove, the adjusting mechanism is arranged in the cavity, the clamping mechanism is arranged at the upper end of the fixing pipe and is in clamping fit with the tower top frame, the adjusting mechanism can adjust the tower top frame up and down during specific work, a communication base station on the tower top frame can be maintained by a worker, potential safety hazards caused by climbing to a high place during work can be prevented, the sealing mechanism can prevent external rainwater from entering the fixing pipe and prevent the fixing pipe from being rusted, the clamping mechanism can clamp and fix the upper end of the tower top frame, and the stability of the tower top frame is guaranteed.
Sealing mechanism include sliding tray, sliding plate, sealed pad, expanding spring and sealed branch chain, fixed pipe on the symmetry be provided with the sliding tray, the sliding tray is linked together with the recess, the sliding tray is inside to be connected with the sliding plate through sliding fit's mode, sealed pad is installed in the sliding plate outside, installing expanding spring between sliding plate inboard and the sliding tray, sealed branch chain is installed to the sliding plate outside symmetry, concrete during operation, when adjustment mechanism drives the tower top frame and slides inside the recess, adjustment mechanism extrusion sliding plate shrink inwards, expanding spring is in compression state, when adjustment mechanism drives the tower top frame and separates with the sliding plate, expanding spring recovers, sealed pad on the adjacent sliding plate is hugged closely each other, sealed branch chain can further guarantee the leakproofness of recess.
As a preferred technical scheme of the invention, the adjusting mechanism comprises an adjusting seat, a driving gear, an adjusting gear, a threaded rod and a sliding seat, wherein the lower end of the fixed pipe is provided with a through hole, the through hole is communicated with the cavity, the adjusting seat is arranged in the through hole through a bearing, a cross-shaped groove is arranged in the adjusting seat, the rear end of the adjusting seat is provided with a rotating shaft, the rear end of the rotating shaft is arranged on the fixed pipe through the bearing, the driving gear is arranged on the rotating shaft, the driving gear is meshed with the adjusting gear, the adjusting gear is arranged at the lower end of the threaded rod, the threaded rod is arranged in the cavity through the bearing, the sliding seat is connected on the threaded rod in a threaded fit manner, the outer side of the sliding seat is connected with the tower top frame, when the tower top frame is in specific work, the adjusting seat is driven to rotate by a manual wrench, the adjusting seat drives the threaded rod to rotate through the driving gear, and the threaded rod can perform the function of up-down adjustment on the tower top frame through the sliding seat, the maintenance of the communication base station on the tower top frame is facilitated.
As a preferred technical scheme, the clamping mechanism comprises a clamping seat, a clamping frame and a connecting spring, the clamping seat is installed at the upper end of the fixed pipe and is of a U-shaped structure, clamping grooves are evenly formed in the clamping seat, the clamping frame is installed in the clamping grooves through pin shafts and is of an L-shaped structure, the connecting spring is installed between the outer side of the clamping frame and the clamping seat, and a connecting groove matched with the clamping frame is formed in the tower top frame.
As a preferred technical scheme of the invention, the sealing branched chain comprises a sealing groove, a piston plate, a return spring and a sealing air bag, wherein the sealing groove is arranged in the sliding plate, the piston plate is connected in the sealing groove in a sliding fit manner, the return spring is arranged between the outer end of the piston plate and the sealing groove, the sealing air bag is symmetrically arranged at the outer end of the sliding plate and communicated with the sealing groove, when the sliding plate moves inwards in specific work, the sliding plate extrudes the sealing air bag through the sliding groove, gas in the sealing air bag enters the sealing groove under the stress, the return spring drives the piston plate to move outwards, when the sliding plate moves outwards, the return spring drives the piston plate to restore, and the sealing air bag can further seal a gap between adjacent sliding plates to prevent external rainwater from entering the inside of the fixing pipe.
As a preferred technical scheme of the invention, the cross section of the sliding seat is of a diamond structure, and the outer end of the sliding seat is tightly attached to the sealing mechanism.
As a preferred technical scheme of the invention, the sealing gasket is made of rubber materials, and the middle part of the sealing gasket is provided with the flexible magnet plate.
As a preferable technical scheme of the invention, the sliding groove is of an arc-shaped structure, and the inner side wall of the sliding groove is uniformly provided with balls.
(III) advantageous effects
1. The single-tube structure communication tower convenient to maintain adopts a lifting design concept, can directly adjust the communication base station arranged on the tower top frame up and down, and avoids potential safety hazards caused by the fact that workers need to climb to the top of the communication tower;
2. according to the communication tower with the single-pipe structure, which is convenient to maintain, the sealing mechanism can effectively seal the groove on the fixed pipe, so that external rainwater and the like are prevented from entering the inside of the fixed pipe, the fixed pipe is prevented from being rusted, and the service life of equipment inside the fixed pipe is ensured;
3. according to the communication tower with the single-pipe structure, which is convenient to maintain, the clamping mechanism can effectively clamp and fix the tower top frame, the stability of the tower top frame is ensured, the communication base station on the tower top frame is prevented from being damaged due to shaking, and the use of the communication base station is facilitated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic cross-sectional view of the bottom plate, the mounting seat, the fixing tube, the groove and the adjusting mechanism;
FIG. 3 is a schematic cross-sectional view of the stationary tube, the sealing mechanism, the threaded rod and the sliding seat of the present invention;
FIG. 4 is a schematic cross-sectional view of the sealing mechanism between the stationary tube and the sealing mechanism according to the present invention;
fig. 5 is a schematic cross-sectional view of the fixing tube, the threaded rod, the sliding seat and the tower top frame according to the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 5, a single tube structure communication tower convenient to maintenance, includes bottom plate 1, body of tower device 2 and tower top frame 3, 1 upper end of bottom plate install body of tower device 2, the body of tower device 2 upper end outside is connected with tower top frame 3 through sliding fit's mode, tower top frame 3 is the ring column structure that the cross-section is the L type, evenly is provided with the weeping hole on the tower top frame 3 up end, installs the communication basic station on the tower top frame 3.
The tower body device 2 comprises an installation seat 21, a fixed pipe 22, a groove 23, a sealing mechanism 24, an adjusting mechanism 25 and a clamping mechanism 26, the installation seat 21 is installed on the bottom plate 1 through screws, the section of the installation seat 21 is of a U-shaped structure, the fixed pipe 22 is installed in the middle of the upper end of the installation seat 21, the fixed pipe 22 is of a cylindrical structure, a cavity is arranged inside the fixed pipe 22, the groove 23 is symmetrically arranged on the fixed pipe 22, the sealing mechanism 24 is evenly installed inside the groove 23, the adjusting mechanism 25 is installed inside the cavity, the clamping mechanism 26 is installed at the upper end of the fixed pipe 22, the clamping mechanism 26 is in clamping fit with the tower top frame 3, during specific work, the adjusting mechanism 25 can adjust the tower top frame 3 up and down, maintenance of a communication base station on the tower top frame 3 by workers is facilitated, potential safety hazards caused by the fact that workers need to climb to high places are prevented, the sealing mechanism 24 can prevent external rainwater from entering the fixed pipe 22, the fixed pipe 22 is prevented from being rusted, and the clamping mechanism 26 can clamp and fix the upper end of the tower top frame 3, so that the stability of the tower top frame 3 is ensured.
The sealing mechanism 24 comprises a sliding groove 241, a sliding plate 242, a sealing gasket 243, a telescopic spring 244 and a sealing branched chain 245, the sliding groove 241 is symmetrically arranged on the fixed pipe 22, the sliding groove 241 is communicated with the groove 23, the sliding plate 242 is connected inside the sliding groove 241 in a sliding fit mode, the sealing gasket 243 is installed on the outer side of the sliding plate 242, the telescopic spring 244 is installed between the inner side of the sliding plate 242 and the sliding groove 241, the sealing branched chain 245 is symmetrically installed on the outer side of the sliding plate 242, the sliding groove 241 is of an arc-shaped structure, balls are uniformly arranged on the inner side wall of the sliding groove 241, the sealing gasket 243 is made of rubber materials, a flexible magnet plate is installed in the middle of the sealing gasket 243, when in specific work, when the adjusting mechanism 25 drives the tower top frame 3 to slide inside the groove 23, the adjusting mechanism 25 presses the sliding plate 242 to contract inwards, and the telescopic spring 244 is in a compression state, when the adjusting mechanism 25 drives the tower top frame 3 to separate from the sliding plate 242, the extension spring 244 is restored, the sealing pads 243 on the adjacent sliding plates 242 are attached to each other, and the sealing branched chain 245 can further ensure the sealing performance of the groove 23.
The sealing branch 245 comprises a sealing groove 246, a piston plate 247, a return spring 248 and a sealing air bag 249, a sealing groove 246 is arranged in the sliding plate 242, a piston plate 247 is connected in the sealing groove 246 in a sliding fit mode, a return spring 248 is arranged between the outer end of the piston plate 247 and the sealing groove 246, sealing air bags 249 are symmetrically arranged at the outer end of the sliding plate 242, the sealing air bags 249 are communicated with the sealing groove 246, when the sliding plate 242 moves inward, the sliding plate 242 presses the sealing air bag 249 through the sliding groove, air inside the sealing air bag 249 is forced into the sealing groove 246, the return spring 248 drives the piston plate 247 to move outward, when the sliding plates 242 move outward, the return spring 248 drives the piston plate 247 to restore, and the sealing air bag 249 can further seal the gap between adjacent sliding plates 242, thereby preventing external rainwater from entering the interior of the fixed pipe 22.
The adjusting mechanism 25 comprises an adjusting seat 251, a driving gear 252, an adjusting gear 253, a threaded rod 254 and a sliding seat 255, the lower end of the fixed tube 22 is provided with a through hole communicated with the cavity, the adjusting seat 251 is installed inside the through hole through a bearing, a cross-shaped groove is arranged inside the adjusting seat 251, the rear end of the adjusting seat 251 is provided with a rotating shaft, the rear end of the rotating shaft is installed on the fixed tube 22 through a bearing, the driving gear 252 is installed on the rotating shaft, the driving gear 252 is meshed with the adjusting gear 253, the adjusting gear 253 is installed at the lower end of the threaded rod 254, the threaded rod 254 is installed inside the cavity through a bearing, the threaded rod 254 is connected with the sliding seat 255 through a thread fit mode, the outer side of the sliding seat 255 is connected with the tower top frame 3, the cross section of the sliding seat 255 is of a diamond structure, the outer end of the sliding seat 255 is tightly attached to the sealing mechanism 24, during specific work, the adjusting seat 251 is manually driven by a wrench to rotate, the adjusting seat 251 drives the threaded rod 254 to rotate through the driving gear 252, and the threaded rod 254 can further adjust the tower top frame 3 up and down through the sliding seat 255, so that maintenance of a communication base station on the tower top frame 3 manually operated is facilitated.
The invention comprises the following steps:
the first step is as follows: manually embedding the bottom plate 1 on the ground in a concrete pouring mode, and installing the installation seat 21 at the upper end of the bottom plate 1 through bolts;
the second step is that: when the communication base station at the upper end of the tower top frame 3 needs to be maintained, a person drives the adjusting seat 251 to rotate through a wrench, the adjusting seat 251 drives the threaded rod 254 to rotate through the driving gear 252, and the threaded rod 254 can further adjust the tower top frame 3 up and down through the sliding seat 255, so that the maintenance of the communication base station on the tower top frame 3 is facilitated for the worker, and the potential safety hazard caused by the fact that the worker needs to climb to a high place is prevented;
the third step: when the adjusting mechanism 25 drives the tower top frame 3 to slide in the groove 23, the adjusting mechanism 25 extrudes the sliding plate 242 to contract inwards, the telescopic spring 244 is in a compressed state, when the adjusting mechanism 25 drives the tower top frame 3 to separate from the sliding plate 242, the telescopic spring 244 recovers, the sealing gaskets 243 on the adjacent sliding plates 242 are tightly attached to each other, the sealing branched chain 245 can further ensure the sealing performance of the groove 23, prevent external rainwater from entering the inside of the fixed pipe 22, prevent the fixed pipe 22 from being rusted, and ensure the service life of equipment in the fixed pipe 22;
the fourth step: when adjustment mechanism 25 drives overhead tower 3 and rises to the highest point, top of the tower frame 3 upper end extrusion chucking frame 262, chucking frame 262 atress take place to rotate with the connecting groove looks joint on the overhead tower 3, and then can realize carrying out the fixed function of chucking to overhead tower 3, guarantee overhead tower 3's stability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a single tube structure communication tower convenient to maintenance, includes bottom plate (1), body of a tower device (2) and top of a tower frame (3), its characterized in that: bottom plate (1) upper end install body of a tower device (2), the body of a tower device (2) upper end outside is connected with overhead mast (3) through sliding fit's mode, overhead mast (3) are the ring column structure of L type for the cross-section, evenly be provided with the weeping hole on overhead mast (3) up end, wherein:
the tower body device (2) comprises a mounting seat (21), a fixed pipe (22), a groove (23), a sealing mechanism (24), an adjusting mechanism (25) and a clamping mechanism (26), wherein the mounting seat (21) is mounted on the bottom plate (1) through screws, the section of the mounting seat (21) is of a U-shaped structure, the fixed pipe (22) is mounted in the middle of the upper end of the mounting seat (21), the fixed pipe (22) is of a cylindrical structure, a cavity is formed in the fixed pipe (22), the grooves (23) are symmetrically formed in the fixed pipe (22), the sealing mechanism (24) is uniformly mounted in the groove (23), the adjusting mechanism (25) is mounted in the cavity, the clamping mechanism (26) is mounted at the upper end of the fixed pipe (22), and the clamping mechanism (26) is in clamping fit with the tower top frame (3);
the sealing mechanism (24) comprises sliding grooves (241), sliding plates (242), sealing gaskets (243), telescopic springs (244) and sealing branched chains (245), the sliding grooves (241) are symmetrically arranged on the fixed pipe (22), the sliding grooves (241) are communicated with the grooves (23), the sliding plates (242) are connected inside the sliding grooves (241) in a sliding fit mode, the sealing gaskets (243) are installed on the outer sides of the sliding plates (242), the telescopic springs (244) are installed between the inner sides of the sliding plates (242) and the sliding grooves (241), and the sealing branched chains (245) are symmetrically installed on the outer sides of the sliding plates (242);
the adjusting mechanism (25) comprises an adjusting seat (251), a driving gear (252), an adjusting gear (253), a threaded rod (254) and a sliding seat (255), the lower end of the fixed pipe (22) is provided with a through hole, the through hole is communicated with the cavity, an adjusting seat (251) is installed in the through hole through a bearing, a cross-shaped groove is formed in the adjusting seat (251), a rotating shaft is installed at the rear end of the adjusting seat (251), the rear end of the rotating shaft is installed on the fixed pipe (22) through a bearing, a driving gear (252) is installed on the rotating shaft, an adjusting gear (253) is meshed with the driving gear (252), the adjusting gear (253) is installed at the lower end of a threaded rod (254), the threaded rod (254) is installed in the cavity through a bearing, a sliding seat (255) is connected to the threaded rod (254) in a thread fit mode, and the outer side of the sliding seat (255) is connected with the tower top frame (3);
the sealing branched chain (245) comprises a sealing groove (246), a piston plate (247), a return spring (248) and a sealing air bag (249), the sealing groove (246) is formed in the sliding plate (242), the piston plate (247) is connected to the inside of the sealing groove (246) in a sliding fit mode, the return spring (248) is installed between the outer end of the piston plate (247) and the sealing groove (246), the sealing air bag (249) is symmetrically installed at the outer end of the sliding plate (242), and the sealing air bag (249) is communicated with the sealing groove (246);
the section of the sliding seat (255) is of a diamond structure, and the outer end of the sliding seat (255) is tightly attached to the sealing mechanism (24).
2. The single tubular structure communication tower of claim 1, wherein: chucking mechanism (26) including chucking seat (261), chucking frame (262) and coupling spring (263), chucking seat (261) install in fixed pipe (22) upper end, chucking seat (261) are U type structure, chucking seat (261) inside evenly is provided with the draw-in groove, chucking frame (262) are installed through the round pin axle to draw-in groove inside, chucking frame (262) are L type structure, coupling spring (263) are installed between chucking frame (262) outside and chucking seat (261), be provided with on tower roof frame (3) with chucking frame (262) complex spread groove.
3. The single tubular structure communication tower of claim 1, wherein: the sealing gasket (243) is made of rubber materials, and a flexible magnet plate is arranged in the middle of the sealing gasket (243).
4. The single tubular structure communication tower of claim 1, wherein: the sliding groove (241) is of an arc-shaped structure, and balls are uniformly arranged on the inner side wall of the sliding groove (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013394.XA CN111155820B (en) | 2020-01-07 | 2020-01-07 | Single tube construction communication tower convenient to maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013394.XA CN111155820B (en) | 2020-01-07 | 2020-01-07 | Single tube construction communication tower convenient to maintenance |
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| Publication Number | Publication Date |
|---|---|
| CN111155820A CN111155820A (en) | 2020-05-15 |
| CN111155820B true CN111155820B (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010013394.XA Active CN111155820B (en) | 2020-01-07 | 2020-01-07 | Single tube construction communication tower convenient to maintenance |
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| Country | Link |
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| CN (1) | CN111155820B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623198B (en) * | 2020-05-28 | 2022-02-22 | 浙江名都科技有限公司 | Communication base station signal receiver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951218B1 (en) * | 2009-10-12 | 2012-03-09 | Alcatel Lucent | COMMUNICATION PYLONE |
| CN206368599U (en) * | 2016-11-27 | 2017-08-01 | 河北腾是达金属结构有限公司 | It is a kind of can be with the communications tower of height self adjustable |
| CN207063664U (en) * | 2017-07-11 | 2018-03-02 | 深圳市新旭龙通信实业有限公司 | A kind of monitoring system and its monitoring bar of convenient installation |
| CN209760938U (en) * | 2019-02-19 | 2019-12-10 | 河南恒辉电力装备有限公司 | High-strength steel pipe rod structure for medium-high voltage transmission line |
-
2020
- 2020-01-07 CN CN202010013394.XA patent/CN111155820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951218B1 (en) * | 2009-10-12 | 2012-03-09 | Alcatel Lucent | COMMUNICATION PYLONE |
| CN206368599U (en) * | 2016-11-27 | 2017-08-01 | 河北腾是达金属结构有限公司 | It is a kind of can be with the communications tower of height self adjustable |
| CN207063664U (en) * | 2017-07-11 | 2018-03-02 | 深圳市新旭龙通信实业有限公司 | A kind of monitoring system and its monitoring bar of convenient installation |
| CN209760938U (en) * | 2019-02-19 | 2019-12-10 | 河南恒辉电力装备有限公司 | High-strength steel pipe rod structure for medium-high voltage transmission line |
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| CN111155820A (en) | 2020-05-15 |
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Effective date of registration: 20210820 Address after: 266327 SICHOU village, Ducun Town, Jiaozhou City, Qingdao City, Shandong Province Applicant after: QINGDAO HUIJINTONG POWER EQUIPMENT Co.,Ltd. Address before: 843300 College of mechanical and electrical engineering, Tarim University, alar city, Aksu Prefecture, Xinjiang Uygur Autonomous Region Applicant before: Liang Changai |
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