CN112638119A - Intelligent management and control device - Google Patents
Intelligent management and control device Download PDFInfo
- Publication number
- CN112638119A CN112638119A CN202011449478.4A CN202011449478A CN112638119A CN 112638119 A CN112638119 A CN 112638119A CN 202011449478 A CN202011449478 A CN 202011449478A CN 112638119 A CN112638119 A CN 112638119A
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- China
- Prior art keywords
- fixedly connected
- heat dissipation
- control device
- sliding
- control box
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses an intelligent control device, and relates to a control device, which comprises a control box body, wherein a plurality of heat dissipation holes are uniformly distributed in the top of the control box body, the left side of the bottom in the control box body is fixedly connected with a motor support, the right side of the motor support is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving wheel, the rear wall of the left side of the control box body is rotatably connected with a wheel shaft, the outer side of the wheel shaft is fixedly connected with a driven wheel, a driving belt is sleeved between the driving wheel and the driven wheel, the eccentric position of the front side of the driving wheel is fixedly connected with a. Make radiator fan possess a comparatively complicated motion through driving motor's drive, can be with the abundant giving off of the inside heat of management and control box in the motion process, very big guarantee intelligent management and control device's normal operating, sliding heat panel and louvre cooperation for the heat dissipation wind direction constantly changes, and the radiating effect is better.
Description
Technical Field
The invention relates to a management and control device, in particular to an intelligent management and control device.
Background
Management and control are management and control, along with the development of the times, more and more intelligent devices are provided, a plurality of intelligent management and control devices are also available in the market, and the intelligent management and control devices are widely introduced in various industries. The intelligent management and control device can better manage and control various industries, plays a great role, and makes various industries more orderly.
However, the existing control device only adopts various electrified elements, and a large number of electric elements are integrated in a box body of the control device. These components emit more heat when managing and controlling, if the radiating effect is not good easily leads to the damage of electric elements, then make originally orderly management and control become a lot of lees. The resulting effect is severe and extensive. Therefore, an intelligent management and control device is proposed by those skilled in the art to solve the problems set forth in the background above.
Disclosure of Invention
The present invention is directed to an intelligent management and control apparatus, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an intelligent control device comprises a control box body, wherein a plurality of heat dissipation holes are uniformly distributed at the top of the control box body, the left side of the bottom in the control box body is fixedly connected with a motor support, the right side of the motor support is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving wheel, the rear wall of the left side of the control box body is rotatably connected with a wheel shaft, the outer side of the wheel shaft is fixedly connected with a driven wheel, a driving belt is sleeved between the driving wheel and the driven wheel, the eccentric part at the front side of the driving wheel is fixedly connected with a first transmission rotating rod, the left side of the bottom in the control box body is fixedly connected with a limiting sliding groove, a limiting sliding block is fixedly connected above the limiting sliding groove, a transmission vertical rod is fixedly connected above the transmission vertical rod, a vertical groove is connected, an upper swing rod is fixedly connected above the swing groove, a heat dissipation fan is fixedly connected above the upper swing rod, a second transmission rotating rod is fixedly connected at the eccentric position of the front side of the driven wheel, and the second transmission rotating rod is connected with the swing groove in a sliding fit mode.
As a further scheme of the invention: the heat dissipation holes are circular holes.
As a still further scheme of the invention: management and control box top sliding connection has sliding heat dissipation board, has seted up the slip perforating hole on the sliding heat dissipation board, and the slip perforating hole is unanimous with the louvre aperture, the slip perforating hole cooperatees with the louvre, sliding heat dissipation board left side fixedly connected with elastic rope, elastic rope and management and control box top left side fixed connection, the elastic rope is tensile state, sliding heat dissipation board right side fixedly connected with transmission stay cord, management and control box top right side fixedly connected with top pulley, management and control bottom half right side fixedly connected with bottom pulley, transmission stay cord walk around behind top pulley, bottom pulley and transmission pole setting fixed connection.
As a still further scheme of the invention: the elastic rope is made of rubber.
As a still further scheme of the invention: the diameter of the driving wheel is consistent with that of the driven wheel.
As a still further scheme of the invention: the heat radiation fan and the driving motor are electrically connected with the power supply through the switch respectively.
As a still further scheme of the invention: the specifications of the upper pulley and the lower pulley are consistent.
As a still further scheme of the invention: the transmission pull rope is a nylon rope.
As a still further scheme of the invention: the vertical groove and the swing groove are consistent in length.
As a still further scheme of the invention: the limiting sliding groove is a dovetail sliding groove, and the limiting sliding block is a dovetail sliding block.
Compared with the prior art, the invention has the beneficial effects that: the intelligent control device is simple in structure and convenient to use, the heat dissipation fan has a relatively complex movement mode through the driving of the driving motor, the heat in the control box body can be fully dissipated in the movement process, the normal operation of the intelligent control device is greatly guaranteed, the sliding heat dissipation plate is matched with the heat dissipation holes, the heat dissipation wind direction is constantly changed, and the heat dissipation effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent management and control device;
FIG. 2 is a schematic structural diagram of a vertical slot in an intelligent management and control device;
fig. 3 is a schematic structural diagram of a limiting slide block in an intelligent management and control device;
in the figure: 1-a control box body, 2-heat dissipation holes, 3-a motor bracket, 4-a driving wheel, 5-a wheel shaft, 6-a driven wheel, 7-a driving belt, 8-a first transmission rotating rod, 9-a limiting sliding groove, 10-a limiting sliding block, 11-a transmission upright rod, 12-a vertical groove, 13-a lower swing rod, 14-a swing groove, 15-an upper swing rod, 16-a heat dissipation fan, 17-a second transmission rotating rod, 18-a sliding heat dissipation plate, 19-a through hole, 20-an elastic rope, 21-a transmission pull rope, 22-an upper pulley, 23-a lower pulley and 24-a driving motor.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The first embodiment is as follows: referring to fig. 1-3, an intelligent control device comprises a control box body 1, wherein a plurality of heat dissipation holes 2 are uniformly distributed on the top of the control box body 1, a motor support 3 is fixedly connected to the left side of the bottom in the control box body 1, a driving motor 24 is fixedly connected to the right side of the motor support 3, a driving wheel 4 is fixedly connected to the output end of the driving motor 24, a wheel shaft 5 is rotatably connected to the rear wall of the left side of the control box body 1, a driven wheel 6 is fixedly connected to the outer side of the wheel shaft 5, and a transmission belt 7 is sleeved between the;
when the device is used, the device is detected to ensure the normal operation of the device, then a power supply is switched on, the driving motor 24 is started, the driving motor 24 drives the driving wheel 4 to rotate, the driving wheel 4 drives the driven wheel 6 to rotate, the first transmission rotating rod 8 at the front side of the driving wheel 4 rotates to drive the vertical groove 12 to rotate, and the limiting slide block 10 is in sliding fit with the limiting slide groove 9 in the rotating process of the vertical groove 12 to guide;
a first transmission rotating rod 8 is fixedly connected at the eccentric position of the front side of the driving wheel 4, a limiting sliding groove 9 is fixedly connected at the left side of the bottom in the control box body 1, a limiting sliding block 10 is fixedly connected above the limiting sliding groove 9, a transmission vertical rod 11 is fixedly connected above the limiting sliding block 10, a vertical groove 12 is fixedly connected above the transmission vertical rod 11, the vertical groove 12 is connected with the first transmission rotating rod 8 in a sliding fit manner, the top of the vertical groove 12 is rotatably connected with a lower swing rod 13, a swing groove 14 is fixedly connected above the lower swing rod 13, an upper swing rod 15 is fixedly connected above the swing groove 14, a cooling fan 16 is fixedly connected above the upper swing rod 15, a second transmission rotating rod 17 is fixedly connected at the eccentric position of the front side of the driven wheel 6, and the second transmission rotating;
the lower end position of the lower swing rod 13 continuously changes along with the left-right movement of the vertical groove 12, meanwhile, the second transmission rotating rod 17 on the front side of the driven wheel 6 rotates to drive the swing groove 14 to move, the lower swing rod 13, the swing groove 14, the upper swing rod 15 and the heat dissipation fan 16 are guided, the position of the heat dissipation fan 16 is determined, and the heat dissipation wind direction can be continuously changed in the whole movement process.
The heat dissipation holes 2 are circular holes.
The top of the control box body 1 is slidably connected with a sliding heat dissipation plate 18, the sliding heat dissipation plate 18 is provided with a sliding through hole 19, the aperture of the sliding through hole 19 is consistent with that of the heat dissipation hole 2, the sliding through hole 19 is matched with the heat dissipation hole 2, the left side of the sliding heat dissipation plate 18 is fixedly connected with an elastic rope 20, the elastic rope 20 is fixedly connected with the left side of the top of the control box body 1, the elastic rope 20 is in a stretching state, the right side of the sliding heat dissipation plate 18 is fixedly connected with a transmission stay cord 21, the right side of the top of the control box body 1 is fixedly connected with an upper pulley 22, the right side of the bottom of the control box body 1 is;
along with the left and right movement of the transmission upright stanchion 11, the transmission pull-up 21 is pulled left and right and drives the sliding heat dissipation plate 18 to move left and right, the sliding through hole 19 is alternatively matched with the heat dissipation hole 2, and the wind direction of the heat dissipation fan 16 can also be changed, thereby greatly ensuring that the device has no heat dissipation dead angle and ensuring the normal operation of the device.
The elastic rope 20 is made of rubber, and the diameter of the driving wheel 4 is consistent with that of the driven wheel 6.
The heat dissipation fan 16 and the driving motor 24 are electrically connected to a power supply through a switch, respectively.
The transmission pull rope 21 is a nylon rope.
The limiting sliding groove 9 is a dovetail sliding groove, and the limiting sliding block 10 is a dovetail sliding block.
Example two: referring to fig. 1-3, an intelligent control device comprises a control box body 1, wherein a plurality of heat dissipation holes 2 are uniformly distributed on the top of the control box body 1, a motor support 3 is fixedly connected to the left side of the bottom in the control box body 1, a driving motor 24 is fixedly connected to the right side of the motor support 3, a driving wheel 4 is fixedly connected to the output end of the driving motor 24, a wheel shaft 5 is rotatably connected to the rear wall of the left side of the control box body 1, a driven wheel 6 is fixedly connected to the outer side of the wheel shaft 5, and a transmission belt 7 is sleeved between the;
when the device is used, the device is detected to ensure the normal operation of the device, then a power supply is switched on, the driving motor 24 is started, the driving motor 24 drives the driving wheel 4 to rotate, the driving wheel 4 drives the driven wheel 6 to rotate, the first transmission rotating rod 8 at the front side of the driving wheel 4 rotates to drive the vertical groove 12 to rotate, and the limiting slide block 10 is in sliding fit with the limiting slide groove 9 in the rotating process of the vertical groove 12 to guide;
a first transmission rotating rod 8 is fixedly connected at the eccentric position of the front side of the driving wheel 4, a limiting sliding groove 9 is fixedly connected at the left side of the bottom in the control box body 1, a limiting sliding block 10 is fixedly connected above the limiting sliding groove 9, a transmission vertical rod 11 is fixedly connected above the limiting sliding block 10, a vertical groove 12 is fixedly connected above the transmission vertical rod 11, the vertical groove 12 is connected with the first transmission rotating rod 8 in a sliding fit manner, the top of the vertical groove 12 is rotatably connected with a lower swing rod 13, a swing groove 14 is fixedly connected above the lower swing rod 13, an upper swing rod 15 is fixedly connected above the swing groove 14, a cooling fan 16 is fixedly connected above the upper swing rod 15, a second transmission rotating rod 17 is fixedly connected at the eccentric position of the front side of the driven wheel 6, and the second transmission rotating;
the lower end position of the lower swing rod 13 continuously changes along with the left-right movement of the vertical groove 12, meanwhile, the second transmission rotating rod 17 on the front side of the driven wheel 6 rotates to drive the swing groove 14 to move, the lower swing rod 13, the swing groove 14, the upper swing rod 15 and the heat dissipation fan 16 are guided, the position of the heat dissipation fan 16 is determined, and the heat dissipation wind direction can be continuously changed in the whole movement process.
The heat dissipation holes 2 are circular holes.
The top of the control box body 1 is slidably connected with a sliding heat dissipation plate 18, the sliding heat dissipation plate 18 is provided with a sliding through hole 19, the aperture of the sliding through hole 19 is consistent with that of the heat dissipation hole 2, the sliding through hole 19 is matched with the heat dissipation hole 2, the left side of the sliding heat dissipation plate 18 is fixedly connected with an elastic rope 20, the elastic rope 20 is fixedly connected with the left side of the top of the control box body 1, the elastic rope 20 is in a stretching state, the right side of the sliding heat dissipation plate 18 is fixedly connected with a transmission stay cord 21, the right side of the top of the control box body 1 is fixedly connected with an upper pulley 22, the right side of the bottom of the control box body 1 is;
along with the left and right movement of the transmission upright stanchion 11, the transmission pull-up 21 is pulled left and right and drives the sliding heat dissipation plate 18 to move left and right, the sliding through hole 19 is alternatively matched with the heat dissipation hole 2, and the wind direction of the heat dissipation fan 16 can also be changed, thereby greatly ensuring that the device has no heat dissipation dead angle and ensuring the normal operation of the device.
The elastic rope 20 is made of rubber, and the diameter of the driving wheel 4 is consistent with that of the driven wheel 6.
The heat dissipation fan 16 and the driving motor 24 are electrically connected to a power supply through a switch, respectively.
The upper pulley 22 and the lower pulley 23 are in the same specification.
The vertical groove 12 and the swing groove 14 have the same length.
The working principle of the invention is as follows: when the device is used, the normal operation of the device is ensured, then a power supply is switched on, a driving motor 24 is switched on, the driving motor 24 drives a driving wheel 4 to rotate, the driving wheel 4 drives a driven wheel 6 to rotate, a first transmission rotating rod 8 at the front side of the driving wheel 4 rotates to drive a vertical groove 12 to rotate, a limiting slide block 10 is in sliding fit with a limiting slide groove 9 in the rotating process of the vertical groove 12 to guide, so that the lower end position of a lower swing rod 13 moves left and right and is continuously changed, meanwhile, a second transmission rotating rod 17 at the front side of the driven wheel 6 rotates to drive a swing groove 14 to move, the lower swing rod 13, the swing groove 14, an upper swing rod 15 and a radiating fan 16 are guided, the position of the radiating fan 16 is determined, the radiating wind direction can be continuously changed in the whole moving process, in addition, along with the left and right movement of a transmission vertical rod 11, a transmission pull-up 21 is pulled, the sliding through hole 19 is alternatively matched with the heat dissipation holes 2, and the wind direction of the heat dissipation fan 16 can be changed, so that the heat dissipation dead angle of the device is greatly avoided, and the normal operation of the device is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An intelligent control device comprises a control box body (1), wherein a plurality of heat dissipation holes (2) are uniformly formed in the top of the control box body (1), a motor support (3) is fixedly connected to the left side of the bottom in the control box body (1), a driving motor (24) is fixedly connected to the right side of the motor support (3), a driving wheel (4) is fixedly connected to the output end of the driving motor (24), a wheel shaft (5) is rotatably connected to the rear wall of the left side of the control box body (1), a driven wheel (6) is fixedly connected to the outer side of the wheel shaft (5), a driving belt (7) is sleeved between the driving wheel (4) and the driven wheel (6), and the intelligent control device is characterized in that a first transmission rotating rod (8) is fixedly connected to the eccentric position of the front side of the driving wheel (4), a limiting chute (9) is fixedly connected to, spacing slider (10) top fixedly connected with transmission pole setting (11), transmission pole setting (11) top fixedly connected with found groove (12), found groove (12) and first transmission bull stick (8) sliding fit and are connected, found groove (12) top and rotate and be connected with down pendulum rod (13), lower pendulum rod (13) top fixedly connected with swing groove (14), pendulum rod (15) are gone up to swing groove (14) top fixedly connected with, go up pendulum rod (15) top fixedly connected with radiator fan (16), from the fixedly connected with second transmission bull stick (17) of eccentric department of driving wheel (6) front side, second transmission bull stick (17) are connected with swing groove (14) sliding fit.
2. The intelligent management and control device according to claim 1, wherein the heat dissipation holes (2) are circular holes.
3. The intelligent management and control device according to claim 1, wherein a sliding heat dissipation plate (18) is slidably connected to the top of the management and control box (1), a sliding through hole (19) is formed in the sliding heat dissipation plate (18), the aperture of the sliding through hole (19) is consistent with that of the heat dissipation hole (2), the sliding through hole (19) is matched with the heat dissipation hole (2), an elastic rope (20) is fixedly connected to the left side of the sliding heat dissipation plate (18), the elastic rope (20) is fixedly connected to the left side of the top of the management and control box (1), the elastic rope (20) is in a stretching state, a transmission pull rope (21) is fixedly connected to the right side of the sliding heat dissipation plate (18), an upper pulley (22) is fixedly connected to the right side of the top of the management and control box (1), a lower pulley (23) is fixedly connected to the right, The rear part of the lower pulley (23) is fixedly connected with the transmission upright rod (11).
4. The intelligent management and control device according to claim 1, wherein the elastic rope (20) is made of rubber.
5. The intelligent management and control device according to claim 1, wherein the diameter of the driving wheel (4) is the same as the diameter of the driven wheel (6).
6. The intelligent management and control device according to any one of claims 1 to 5, wherein the heat dissipation fan (16) and the driving motor (24) are electrically connected to a power supply through a switch, respectively.
7. The intelligent management and control device according to claim 3, wherein the upper pulley (22) and the lower pulley (23) are in compliance with each other.
8. The intelligent management and control device according to claim 3, wherein the transmission pull rope (21) is a nylon rope.
9. The intelligent management and control device according to claim 1, wherein the vertical groove (12) and the swing groove (14) have the same length.
10. The intelligent management and control device according to claim 1, wherein the limiting sliding groove (9) is a dovetail sliding groove, and the limiting sliding block (10) is a dovetail sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449478.4A CN112638119B (en) | 2020-12-12 | 2020-12-12 | Intelligent management and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449478.4A CN112638119B (en) | 2020-12-12 | 2020-12-12 | Intelligent management and control device |
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| Publication Number | Publication Date |
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| CN112638119A true CN112638119A (en) | 2021-04-09 |
| CN112638119B CN112638119B (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011449478.4A Active CN112638119B (en) | 2020-12-12 | 2020-12-12 | Intelligent management and control device |
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| CN (1) | CN112638119B (en) |
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| CN211019530U (en) * | 2019-05-24 | 2020-07-14 | 上海怡云机电设备有限公司 | Switch board convenient to remove |
| CN211457817U (en) * | 2019-12-26 | 2020-09-08 | 新沂城北新区城市建设发展有限公司 | Communication cabinet that radiating effect is good |
| CN211720061U (en) * | 2020-04-29 | 2020-10-20 | 吉林瑞科汉斯电气股份有限公司 | Novel intelligent block terminal |
| CN211874792U (en) * | 2020-04-14 | 2020-11-06 | 王野 | Machine room heat dissipation device with adjustable heat dissipation area |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070221446A1 (en) * | 2004-08-26 | 2007-09-27 | Karsten Laing | Power supply unit for an electrical appliance and method for making electrical power available at components of an electrical appliance |
| US20060187635A1 (en) * | 2005-02-18 | 2006-08-24 | Jochen Krauter | Device and method for cooling an electronics unit |
| CN207560375U (en) * | 2017-11-30 | 2018-06-29 | 聚和磁能（天津）科技有限公司 | A kind of frequency-shift keying electromagnetic induction heater |
| CN109960390A (en) * | 2017-12-26 | 2019-07-02 | 天津漫梦科技有限公司 | A kind of computer equipment of heat sinking function |
| CN209134286U (en) * | 2018-12-19 | 2019-07-19 | 安徽森川新能源技术有限公司 | A kind of industrial frequency converter with heat sinking function |
| CN211019530U (en) * | 2019-05-24 | 2020-07-14 | 上海怡云机电设备有限公司 | Switch board convenient to remove |
| CN211457817U (en) * | 2019-12-26 | 2020-09-08 | 新沂城北新区城市建设发展有限公司 | Communication cabinet that radiating effect is good |
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|---|---|
| CN112638119B (en) | 2021-09-07 |
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