CN112566410B - Loop on-line monitoring device for protector - Google Patents
Loop on-line monitoring device for protector Download PDFInfo
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- CN112566410B CN112566410B CN202011406194.7A CN202011406194A CN112566410B CN 112566410 B CN112566410 B CN 112566410B CN 202011406194 A CN202011406194 A CN 202011406194A CN 112566410 B CN112566410 B CN 112566410B
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- 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
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Telephonic Communication Services (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a loop online monitoring device for a protector, and relates to the technical field of monitoring device installation. Including the protection box, the monitoring devices body, fixed establishment, the inside lower extreme of protection box sets up one deck fixed network layer and well hollow layer, well hollow layer lower extreme is provided with radiator fan, fixed network layer upper end sets up a plurality of connecting rods and monitoring devices body lower extreme sliding connection, protection box top inboard is connected with the increased pressure board through a plurality of sixth elastic component, be connected through a plurality of second connecting portion between protection box both sides and the monitoring devices body, the second connecting portion are including the extrusion groove, the screw rod, first clamp plate, the extrusion spring, the second clamp plate, fixed establishment includes U type picture peg and U type fixed plate. The invention overcomes the defects of the prior art, effectively facilitates the installation and the taking out of the monitoring device, facilitates the maintenance of the monitoring device, simultaneously improves the shockproof buffer effect of the device, facilitates the heat dissipation of the device and prolongs the service life of the device.
Description
Technical Field
The invention relates to the technical field of monitoring device installation, in particular to a loop online monitoring device for a protector.
Background
Surge protectors are also known as lightning arresters, surge protectors, lightning arresters, overvoltage protectors. Is suitable for 50 Hz and 60 Hz. Surge protectors are devices that are protected from lightning strikes by modern electrical and other techniques. After the general protector is installed, a loop on-line monitoring device is needed to monitor so as to ensure the safety.
At present, the use of electric power permeates the aspects of life of people, so the safety of power utilization is also important, generally, lightning has great influence on the power utilization, the discharge current is increased sharply in the thundercloud discharge process, the lightning current reaches tens of kiloamperes or even hundreds of kiloamperes at the moment when the lightning reaches the ground, the potential difference at two ends of a lightning channel can reach hundreds of thousands of volts, and strong electromagnetic, thermal and mechanical destructive effects can be caused at the place where the lightning current arrives. Therefore, the protector is adopted to prevent lightning and surge in the transformer substation and some electricity utilization centralized places, and a loop online monitoring device is required to monitor the protector in the using process of the protector so as to achieve safety guarantee.
The general loop on-line monitoring device for the protector is usually fixed, inconvenience is caused during later maintenance, the shell needs to be completely replaced when the device is replaced, loss is large, the device is inconvenient to replace and set up places, and great trouble is brought to workers.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the loop online monitoring device for the protector, which effectively facilitates the installation and the taking out of the monitoring device, facilitates the maintenance of the monitoring device, improves the shockproof buffer effect of the device, facilitates the heat dissipation of the device and prolongs the service life of the device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a loop online monitoring device for a protector comprises a protective box, a monitoring device body arranged in the protective box and a fixing mechanism arranged on the back of the monitoring device body, wherein fixing blocks are symmetrically arranged on two sides of the bottom end in the protective box, a fixed net layer is arranged at the lower end in the protective box, a hollow layer is formed at the bottom of the fixed net layer and the bottom of the protective box, a heat dissipation fan is arranged at the lower end of the hollow layer and communicated with the outside, a plurality of connecting rods are arranged at the upper end of the fixed net layer, the upper ends of the connecting rods are connected with the lower end of the monitoring device body in a sliding manner, the inner side of the top of the protective box is connected with a pressure plate through a plurality of sixth elastic pieces, the bottom of the pressure plate is connected with the upper end of the monitoring device body in a sliding manner, two sides of the protective box are connected with the monitoring device body through a plurality of second connecting parts, and the second connecting parts comprise an extrusion groove arranged on the side wall of the monitoring device body and a screw rod arranged on the side wall of the protective box, screw rod one end extends to the protection box inside and is connected with first clamp plate, and first clamp plate is close to extrusion groove one side and is connected with the second clamp plate through the extrusion spring, and second clamp plate and extrusion groove lateral wall sliding connection, the screw rod other end extends to the protection box outside, and screw rod and protection box lateral wall bolted connection, fixed establishment is including the U type picture peg that is fixed in the protection box back and the U type fixed plate that is fixed in on the wall body, U type picture peg inserts U type fixed plate inboard and U type picture peg both ends and passes through set screw and wall body and fix mutually, monitoring devices body outside is provided with display screen and button, and protection box upper end effect both sides are provided with first wiring mouth and second wiring mouth respectively.
Preferably, the two sides of the bottom of the protection box are symmetrically provided with supporting mechanisms, and each supporting mechanism comprises two supporting plates connected with the bottom of the protection box and supporting blocks at the lower ends of the supporting plates.
Preferably, a U-shaped slot is formed in the upper end of the supporting block, the lower ends of the two support plates are inserted into the U-shaped slot and connected with a connecting plate inside the U-shaped slot, the connecting plate is connected with the inner wall of the U-shaped slot in a sliding mode, the upper end of the connecting plate is connected with the upper end of the U-shaped slot through a third elastic piece, and the lower end of the connecting plate is connected with the bottom of the U-shaped slot through a fourth elastic piece.
Preferably, the upper end of the monitoring device body is provided with a plurality of U-shaped blocks, the U-shaped blocks are rotatably connected with rollers, and the rollers are slidably connected with the bottom of the pressurizing plate.
Preferably, the bottom of the monitoring device body is in an inwards concave arc shape.
Preferably, a plurality of sleeves are arranged at the upper end of the fixed net layer, and the bottoms of the connecting rods are inserted into the sleeves and connected with the insides of the sleeves through fifth elastic pieces.
Preferably, the lower end of the monitoring device body is provided with a plurality of sliding grooves, and the upper ends of the connecting rods are inserted into the sliding grooves and are connected with the inside of the sliding grooves in a sliding mode through balls.
Preferably, the upper end and the lower end of one side, close to the monitoring device body, of the first pressing plate are provided with a layer of elastic layer.
Preferably, one end of the screw rod, which is positioned outside the protection box, is provided with a limiting plate.
Preferably, the inside top of U type picture peg is connected with first stripper plate through first elastic component, and first stripper plate lateral wall and U type picture peg inside wall sliding connection, the inside lower extreme of U type fixed plate is connected with the second stripper plate through the second elastic component, and second stripper plate lateral wall and U type fixed plate inside wall sliding connection.
Compared with the prior art, the invention provides a loop online monitoring device for a protector, which has the following beneficial effects:
1. the monitoring device body is convenient to pick and place and convenient to overhaul through the arrangement of the sixth elastic piece, the pressurizing plate, the U-shaped block, the roller, the fixed net layer, the sleeve, the fifth elastic piece, the connecting rod, the sliding chute and the ball;
2. through the arrangement of the screw, the extrusion groove, the first pressing plate, the second pressing plate, the extrusion spring, the elastic layer and the limiting plate, the monitoring device body is effectively fixed, and meanwhile, the damping effect of the monitoring device body is improved, and the monitoring device body is prevented from being damaged;
3. through radiator fan, the radiating efficiency of monitoring devices can effectively be promoted in the setting of cavity to through the setting of U type picture peg, set screw, U type fixed plate, first stripper plate, first elastic component, second stripper plate, second elastic component, extension board, supporting shoe, U type slot, connecting plate, third elastic component, fourth elastic component, the conversion of installation and hanging the wall installation is placed to the device to the convenience, conveniently carries out the position to the device and changes.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic cross-sectional front view of a second connecting portion according to the present invention;
FIG. 4 is a side view of the fixing mechanism of the present invention;
FIG. 5 is a schematic structural view of a front cross section of the supporting mechanism of the present invention;
FIG. 6 is a schematic cross-sectional front view of a third connecting portion according to the present invention;
fig. 7 is a front sectional view of the first connecting portion according to the present invention.
In the figure: 1 protective box, 2 monitoring device body, 3 display screen, 4 buttons, 5 first connecting part, 6 second connecting part, 7 third connecting part, 8 fixed block, 9 supporting mechanism, 10 heat radiation fan, 11 first connecting port, 12 second connecting port, 13 fixing mechanism, 14 screw, 15 extrusion groove, 16 first pressing plate, 17 second pressing plate, 18 extrusion spring, 19 elastic layer, 20 limiting plate, 21U-shaped plug board, 22 fixing screw, 23U-shaped fixing plates, 24 first extrusion plates, 25 first elastic pieces, 26 second extrusion plates, 27 second elastic pieces, 28 support plates, 29 support blocks, 30U-shaped slots, 31 connecting plates, 32 third elastic pieces, 33 fourth elastic pieces, 34 fixing net layers, 35 sleeves, 36 fifth elastic pieces, 37 connecting rods, 38 sliding grooves, 39 balls, 40 hollow layers, 41 sixth elastic pieces, 42 pressurizing plates, 43U-shaped blocks and 44 rollers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-7, a loop on-line monitoring device for a protector comprises a protection box 1, a monitoring device body 2 arranged inside the protection box 1, and a fixing mechanism 13 arranged on the back of the monitoring device body 2, wherein fixing blocks 8 are symmetrically arranged on two sides of the bottom end inside the protection box 1, a layer of fixed net layer 34 is arranged at the lower end inside the protection box 1, the fixed net layer 34 and the bottom of the protection box 1 form a hollow layer 40, a heat dissipation fan 10 is arranged at the lower end of the hollow layer 40 and communicated with the outside, a plurality of connecting rods 37 are arranged at the upper end of the fixed net layer 34, the upper end of each connecting rod 37 is slidably connected with the lower end of the monitoring device body 2, the inner side of the top of the protection box 1 is connected with a pressure plate 42 through a plurality of sixth elastic members 41, the bottom of the pressure plate 42 is slidably connected with the upper end of the monitoring device body 2, two sides of the protection box 1 are connected with the monitoring device body 2 through a plurality of second connecting portions 6, the second connecting part 6 comprises an extrusion groove 15 arranged on the side wall of the monitoring device body 2 and a screw 14 arranged on the side wall of the protection box 1, one end of the screw 14 extends into the protection box 1 and is connected with a first pressing plate 16, and the side of the first pressing plate 16 close to the pressing groove 15 is connected with the second pressing plate 17 through a pressing spring 18, and the second pressing plate 17 is connected with the side wall of the extrusion groove 15 in a sliding way, the other end of the screw 14 extends to the outside of the protection box 1, and the screw 14 is connected with the side wall of the protection box 1 through a bolt, the fixing mechanism 13 comprises a U-shaped inserting plate 21 fixed on the back surface of the protection box 1 and a U-shaped fixing plate 23 fixed on a wall body, the U-shaped inserting plate 21 is inserted into the inner side of the U-shaped fixing plate 23, two ends of the U-shaped inserting plate 21 are fixed with a wall body through fixing screws 22, a display screen 3 and a button 4 are arranged outside the monitoring device body 2, and both sides of the upper end of the protection box 1 are respectively provided with a first connecting port 11 and a second connecting port 12. Can be effectual to monitoring devices body 2 install and dismantle, convenient the maintenance.
Example 2:
as shown in fig. 1 to 7, in this embodiment, basically the same as embodiment 1, preferably, the supporting mechanisms 9 are symmetrically arranged on both sides of the bottom of the protection box 1, and the supporting mechanisms 9 include two supporting plates 28 connected with the bottom of the protection box 1 and supporting blocks 29 at the lower ends of the supporting plates 28. The device is convenient to be mounted on a wall and placed.
In order to improve the placing stability of the device, preferably, the upper end of the supporting block 29 is provided with a U-shaped slot 30, the lower ends of the two supporting plates 28 are inserted into the U-shaped slot 30 and connected to a connecting plate 31 inside the U-shaped slot 30, the connecting plate 31 is slidably connected to the inner wall of the U-shaped slot 30, the upper end of the connecting plate 31 is connected to the upper end of the U-shaped slot 30 through a third elastic member 32, and the lower end of the connecting plate 31 is connected to the bottom of the U-shaped slot 30 through a fourth elastic member 33.
Example 3:
as shown in fig. 1-7, this embodiment is substantially the same as embodiment 1, and preferably, a plurality of U-shaped blocks 43 are disposed at the upper end of the monitoring device body 2, and a roller 44 is rotatably connected inside the U-shaped blocks 43, and the roller 44 is slidably connected with the bottom of the pressurizing plate 42. The smoothness of the installation and the disassembly of the monitoring device body 2 is effectively improved,
example 4:
as shown in fig. 1 to 7, this embodiment is substantially the same as embodiment 1, and preferably, the bottom of the monitoring device body 2 is in a concave arc shape. The contact area between the bottom of the monitoring device body 2 and the air is increased, and the cooling and heat dissipation effects are enhanced.
For improving the stability of the device installation, it is preferable that a plurality of sleeves 35 are provided at the upper end of the fixed mesh layer 34, and the bottom of the connecting rod 37 is inserted into the sleeves 35 and connected with the inside of the sleeves 35 by a fifth elastic member 36.
In order to further improve the smoothness of the installation of the device, it is preferable that the lower end of the monitoring device body 2 is provided with a plurality of sliding grooves 38, and the upper end of the connecting rod 37 is inserted into the sliding grooves 38 and is slidably connected with the inside of the sliding grooves 38 through balls 39.
Example 5:
as shown in fig. 1 to 7, this embodiment is substantially the same as embodiment 1, and it is preferable that the first presser plate 16 is provided with a layer of elastic layer 19 at both upper and lower ends of a side thereof close to the monitoring device body 2. Promote the fixed stability of monitoring devices body 2 extrusion.
In order to prevent the screw 14 from being separated from the protective case 1, it is preferable that a limit plate 20 is provided at one end of the screw 14 located outside the protective case 1.
Example 6:
as shown in fig. 1-7, this embodiment is substantially the same as embodiment 1, preferably, the top end of the inside of the U-shaped inserting plate 21 is connected to the first pressing plate 24 through the first elastic member 25, the side wall of the first pressing plate 24 is slidably connected to the inside wall of the U-shaped inserting plate 21, the lower end of the inside of the U-shaped fixing plate 23 is connected to the second pressing plate 26 through the second elastic member 27, and the side wall of the second pressing plate 26 is slidably connected to the inside wall of the U-shaped fixing plate 23. In order to improve the stability of the fixing of the protection box 1 and the wall.
The working principle is as follows: confirm the mode of device installation earlier during the use, if place the installation, then directly place protection box 1 in relevant position, if the wall built-up installation, then fix protection box 1 through fixed establishment 13 and set screw 22, place monitoring devices body 2 inside protection box 1 afterwards, extrude fixedly protection box 1 through second connecting portion 6, and first connecting portion 5 and third connecting portion 7 restrict it fixedly, and pass through first line mouth 11 with the connecting wire, second line mouth 12 carries out erection joint, start radiator fan 10 when the temperature is higher and dispel the heat.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A loop online monitoring device for a protector comprises a protective box (1), a monitoring device body (2) arranged in the protective box (1) and a fixing mechanism (13) arranged on the back of the monitoring device body (2), and is characterized in that fixing blocks (8) are symmetrically arranged on two sides of the bottom end in the protective box (1), a layer of fixed net layer (34) is arranged at the lower end in the protective box (1), a hollow layer (40) is formed at the bottom of the fixed net layer (34) and the bottom of the protective box (1), a heat radiation fan (10) is arranged at the lower end of the hollow layer (40) and communicated with the outside, a plurality of connecting rods (37) are arranged at the upper end of the fixed net layer (34), the upper ends of the connecting rods (37) are in sliding connection with the lower end of the monitoring device body (2), the inner side of the top of the protective box (1) is connected with a pressure plate (42) through a plurality of sixth elastic pieces (41), and increased pressure board (42) bottom and monitoring devices body (2) upper end sliding connection, be connected through a plurality of second connecting portion (6) between protection box (1) both sides and monitoring devices body (2), screw rod (14) that set up on extrusion groove (15) that sets up on monitoring devices body (2) lateral wall and protection box (1) lateral wall are drawn together to second connecting portion (6), screw rod (14) one end is extended to protection box (1) inside and is connected with first clamp plate (16), and first clamp plate (16) are close to extrusion groove (15) one side and are connected with second clamp plate (17) through extrusion spring (18), and second clamp plate (17) and extrusion groove (15) lateral wall sliding connection, screw rod (14) other end extends to protection box (1) outside, and screw rod (14) and protection box (1) lateral wall bolted connection, fixed establishment (13) are including being fixed in U type picture peg (21) at the protection box (1) back and being fixed in on the wall body The monitoring device comprises a U-shaped fixing plate (23), wherein the U-shaped inserting plate (21) is inserted into the inner side of the U-shaped fixing plate (23), two ends of the U-shaped inserting plate (21) are fixed with a wall body through fixing screws (22), a display screen (3) and a button (4) are arranged outside a monitoring device body (2), and two sides of the upper end of a protection box (1) are respectively provided with a first connecting port (11) and a second connecting port (12);
the two sides of the bottom of the protection box (1) are symmetrically provided with supporting mechanisms (9), and each supporting mechanism (9) comprises two supporting plates (28) connected with the bottom of the protection box (1) and supporting blocks (29) at the lower ends of the supporting plates (28); the upper end of the supporting block (29) is provided with a U-shaped slot (30), the lower ends of the two support plates (28) are inserted into the U-shaped slot (30) and connected with a connecting plate (31) inside the U-shaped slot (30), the connecting plate (31) is in sliding connection with the inner wall of the U-shaped slot (30), the upper end of the connecting plate (31) is connected with the upper end of the U-shaped slot (30) through a third elastic piece (32), and the lower end of the connecting plate (31) is connected with the bottom of the U-shaped slot (30) through a fourth elastic piece (33);
the upper end of the monitoring device body (2) is provided with a plurality of U-shaped blocks (43), the inside of each U-shaped block (43) is rotatably connected with a roller (44), and the rollers (44) are slidably connected with the bottoms of the pressurizing plates (42);
the lower end of the monitoring device body (2) is provided with a plurality of sliding grooves (38), and the upper ends of the connecting rods (37) are inserted into the sliding grooves (38) and are in sliding connection with the insides of the sliding grooves (38) through balls (39);
the inside top of U type picture peg (21) is connected with first stripper plate (24) through first elastic component (25), and first stripper plate (24) lateral wall and U type picture peg (21) inside wall sliding connection, the inside lower extreme of U type fixed plate (23) is connected with second stripper plate (26) through second elastic component (27), and second stripper plate (26) lateral wall and U type fixed plate (23) inside wall sliding connection.
2. The on-line loop monitoring device for the protector as claimed in claim 1, wherein the bottom of the monitoring device body (2) is concave arc-shaped.
3. The on-line monitoring device for the loop of the protector as claimed in claim 1, wherein a plurality of sleeves (35) are provided at the upper end of the fixed net layer (34), and the bottom of the connecting rod (37) is inserted into the sleeves (35) and connected with the inside of the sleeves (35) through a fifth elastic member (36).
4. The on-line loop monitoring device for the protector as claimed in claim 1, wherein a layer of elastic layer (19) is disposed on each of the upper and lower ends of the first pressing plate (16) close to one side of the monitoring device body (2).
5. The on-line loop monitoring device for the protector as claimed in claim 1, wherein a limiting plate (20) is arranged at one end of the screw (14) located outside the protection box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406194.7A CN112566410B (en) | 2020-12-03 | 2020-12-03 | Loop on-line monitoring device for protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406194.7A CN112566410B (en) | 2020-12-03 | 2020-12-03 | Loop on-line monitoring device for protector |
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| CN112566410A CN112566410A (en) | 2021-03-26 |
| CN112566410B true CN112566410B (en) | 2022-09-13 |
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| CN202011406194.7A Active CN112566410B (en) | 2020-12-03 | 2020-12-03 | Loop on-line monitoring device for protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113294385A (en) * | 2021-06-08 | 2021-08-24 | 安徽艾璞精密机械有限公司 | Oil-free vortex air compressor maintenance mechanism |
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| DE19809293C1 (en) * | 1998-03-05 | 1999-09-30 | Moeller Gmbh | Protection device for an electrical energy system |
| CN106937498B (en) * | 2017-04-27 | 2023-09-29 | 湖南九伍智能科技有限公司 | Embedded low-power-consumption indoor communication equipment |
| CN207150770U (en) * | 2017-12-08 | 2018-03-27 | 安徽盛世天朗软件科技有限公司 | A kind of fender bracket for the network equipment |
| CN208209494U (en) * | 2018-06-06 | 2018-12-07 | 浙江雷拓电气有限公司 | A kind of protective device convenient for lightning protection device installation |
| CN208476975U (en) * | 2018-08-06 | 2019-02-05 | 重庆市亨特尔电力科技有限公司 | A kind of lightning protection on-Line Monitor Device for substation |
| CN210168358U (en) * | 2019-02-18 | 2020-03-20 | 张政勇 | Low-impedance multilayer circuit board |
| CN209434874U (en) * | 2019-03-25 | 2019-09-24 | 天津卓一科技有限公司 | A kind of integral type surge protector with indicator light |
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| CN210016283U (en) * | 2019-05-17 | 2020-02-04 | 杭州国民电气有限公司 | Surge protection device with exhaust and dust removal structure |
| CN209642319U (en) * | 2019-05-27 | 2019-11-15 | 杭州易造科技有限公司 | A kind of easy-to-mount Surge Protector |
| CN211908699U (en) * | 2019-12-09 | 2020-11-10 | 扬州知行动力科技有限公司 | Long service life's machine controller |
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| CN212060464U (en) * | 2020-04-15 | 2020-12-01 | 江苏鹏泰电气有限公司 | On-line monitoring and electricity testing device for switch cabinet lightning arrester |
| CN111669916A (en) * | 2020-06-05 | 2020-09-15 | 江苏富联通讯技术有限公司 | Fixing base for 5G communication module installation equipment and use method thereof |
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| CN211981896U (en) * | 2020-04-27 | 2020-11-20 | 陈选户 | Computer network router |
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