CN112272477B - 5G signal transmission device with protective structure - Google Patents
5G signal transmission device with protective structure Download PDFInfo
- Publication number
- CN112272477B CN112272477B CN202011250714.XA CN202011250714A CN112272477B CN 112272477 B CN112272477 B CN 112272477B CN 202011250714 A CN202011250714 A CN 202011250714A CN 112272477 B CN112272477 B CN 112272477B
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- wall
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- signal processing
- clamping
- processing box
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 23
- 230000001681 protective effect Effects 0.000 title claims description 10
- 238000004804 winding Methods 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009434 installation Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- 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
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
-
- 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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- 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)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
Abstract
The invention belongs to the technical field of 5G signal transmission, in particular to a 5G signal transmission device with a protection structure, and provides a scheme for solving the problem of messy cables. According to the invention, the connecting rod, the connecting plate, the first hydraulic rod, the clamping plate, the rotating rod and the electric wire winding drum are arranged, when the electric wire of the device is connected, the electric cable is wound on the electric wire winding drum, the first hydraulic rod is connected with the hydraulic system, the length of the first hydraulic rod is adjusted to enable the clamping plate to clamp the electric wire on the electric wire winding drum, the clamping plate is of an arc structure and is more attached to the surface of the electric wire winding drum, and the cable receiving effect of the device can be effectively improved.
Description
Technical Field
The invention relates to the technical field of 5G signal transmission, in particular to a 5G signal transmission device with a protection structure.
Background
The 5G network is the next generation mobile internet connection, can provide faster and more reliable connection on smart phones and other equipment than before, and can not leave a signal transmission device when signal connection is carried out.
The prior art provides a data transfer device, such as a data transfer device related to wireless signals disclosed in the prior art, the data transfer device comprising: USB connects, filtering block and signal processing case, and it is provided with USB3.0 and connects, and compare with traditional USB2.0 and connect, its speed of transmission signal is faster, guarantees to have stability and reliability among the signal transmission process, is worth promoting and using in the information technology field.
However, the prior art still has the following disadvantages: for example, when the signal transmission device is installed, because a large number of wires are connected among the electric appliances, the device is not provided with a corresponding wire accommodating mechanism and does not accommodate the wires, the wires are easily wound and disordered, and the practicability of the device is greatly reduced.
Disclosure of Invention
Based on the technical problem that when the signal transmission device provided in the background art is installed, a large number of wires are connected among all electric appliances, but the device is not provided with a corresponding wire accommodating mechanism and does not accommodate the wires, so that the wires are easily wound in a mess, and the practicability of the device is greatly reduced, the invention provides the 5G signal transmission device with the protection structure.
The invention provides a 5G signal transmission device with a protection structure, which comprises a support base, wherein a connecting rod is arranged on the outer wall of one side of the support base, a connecting plate is arranged at the other end of the connecting rod, first hydraulic rods distributed at equal intervals are arranged on the outer wall of one side of the connecting plate, a clamping plate is arranged at the other end of each first hydraulic rod, the clamping plate is of an arc-shaped structure, a support column is arranged on the outer wall of the top of the support base, rotating rods distributed at equal intervals are movably connected to the inner wall of the top of the support column, a wire winding drum is arranged on the outer wall of each rotating rod, a signal processing box is arranged on the outer wall of the top of the support base, and a clamping mechanism is arranged on the outer wall of the top of the support base.
Preferably, the clamping mechanism comprises a clamping groove, and the inner wall of the clamping groove is clamped with the signal transmitter.
Preferably, the inner wall of the clamping groove is slidably connected with a sliding plate, and the bottom outer wall of the sliding plate and the top outer wall of the supporting base are provided with the same spring damper.
Preferably, the top outer wall in joint groove is provided with the connecting cylinder, and the inner wall sliding connection of connecting cylinder has the telescopic link, and the top outer wall of telescopic link is provided with the roof, and one side outer wall of connecting cylinder is provided with the fastening knob.
Preferably, the top inner wall of signal processing case is provided with the baffle, and the top inner wall and the bottom inner wall of signal processing case all are provided with the heat dissipation fan.
Preferably, the outer wall of one side of the signal processing box is provided with a ventilation groove, and the outer wall of one side of the signal processing box is provided with an inclined plate.
Preferably, one side outer wall of signal processing case is provided with the diaphragm, and the top outer wall of diaphragm is provided with the baffle, and one side inner wall of signal processing case is provided with the spring, and the other end of spring is provided with the second joint board, and one side outer wall joint of second joint board has the dust screen.
Preferably, a clamping block is arranged on the inner wall of one side of the signal processing box, the dust filtering net is connected to the inner wall of the clamping block, and a pull ring is arranged on the outer wall of the top of the dust filtering net.
The beneficial effects of the invention are as follows:
1. this 5G signal transmission device with protective structure, through being provided with the connecting rod, the connecting plate, first hydraulic stem, the joint board, bull stick and electric wire take-up reel, when connecting the electric wire of device, wind the cable on the electric wire take-up reel, connect hydraulic system with first hydraulic stem, adjust the length of first hydraulic stem and can make the joint board carry out the joint to the electric wire on the electric wire take-up reel, the joint board is the surface that the electric wire take-up reel was laminated more to the arc structure, can effectively improve the effect of accomodating of device cable.
2. This 5G signal transmission device with protective structure, through being provided with spring damper, the sliding plate, the connecting cylinder, the telescopic link, roof and fastening knob, spring damper can reduce rocking that signal transmitter received at joint inslot portion, improve the live time of signal driver, after installing signal transmitter, according to the length of signal transmitter's altitude mixture control telescopic link, fix fastening knob, can make the roof play a spacing effect to signal transmitter, the roof can also play rain-proof effect, the effectual practicality that improves the device.
3. This 5G signal transmission device with protective structure, through being provided with the heat dissipation fan, the dirt filtrating screen, the second joint board, the swash plate, baffle and spring, when the heat of device inside is higher, the staff can open the heat dissipation fan and carry out effectual heat dissipation to the inside of device, the radiating effect of signal processing incasement portion has been improved, connect the dirt filtrating screen card in the inside of baffle and second joint board, the pulling pull ring can realize quick installation and the dismantlement to the dirt filtrating screen, the dirt filtrating screen can prevent that the dust from entering into the inside of device, the dustproof effect of device has been improved.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
Fig. 1 is a schematic structural diagram of a 5G signal transmission device with a protective structure according to the present invention;
FIG. 2 is a schematic structural diagram of a spring damper of a 5G signal transmission device with a protective structure according to the present invention;
FIG. 3 is a schematic structural diagram of a dust filter screen of a 5G signal transmission device with a protective structure according to the present invention;
fig. 4 is a schematic view of a portion a of fig. 3.
In the figure: the device comprises a connecting rod 1, a supporting base 2, a connecting plate 3, a first hydraulic rod 4, a clamping plate 5, a supporting column 6, a rotating rod 7, a signal processing box 8, a top plate 9, a clamping groove 10, a wire winding drum 11, a telescopic rod 12, a connecting drum 13, a fastening knob 14, a signal transmitter 15, a spring damper 16, a heat dissipation fan 17, a partition plate 18, a pull ring 19, a clamping block 20, a dust filtering net 21, a ventilation groove 22, an inclined plate 23, a baffle plate 24, a transverse plate 25, a second clamping plate 26 and a spring 27.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-4, a 5G signal transmission device with a protective structure comprises a supporting base 2, a connecting rod 1 is fixed on the outer wall of one side of the supporting base 2 through a screw, a connecting plate 3 is fixed on the other end of the connecting rod 1 through a screw, first hydraulic rods 4 distributed at equal intervals are fixed on the outer wall of one side of the connecting plate 3 through screws, a clamping plate 5 is fixed on the other end of the first hydraulic rod 4 through a screw, the clamping plate 5 is of an arc-shaped structure, a supporting column 6 is fixed on the outer wall of the top of the supporting base 2 through a screw, rotating rods 7 distributed at equal intervals are movably connected on the inner wall of the top of the supporting column 6, a wire winding drum 11 is fixed on the outer wall of the top of the supporting base 2 through a screw, a signal processing box 8 is fixed on the outer wall of the top of the supporting base 2 through a screw, a clamping mechanism is fixed on the outer wall of the top of the supporting base 2 through a screw, and a cable is wound on the wire winding drum 11, connect hydraulic system with first hydraulic stem 4, adjust the length of first hydraulic stem 4 and can make joint board 5 carry out the joint to the electric wire on the electric wire winding drum 11, joint board 5 is the surface of electric wire winding drum 11 of laminating more of arc structure, and the joint is effectual.
According to the invention, the clamping mechanism comprises the clamping groove 10, the signal transmitter 15 is clamped on the inner wall of the clamping groove 10, the inner wall of the clamping groove 10 is connected with the sliding plate in a sliding mode, the same spring shock absorber 16 is arranged on the outer wall of the bottom of the sliding plate and the outer wall of the top of the supporting base 2, the signal transmitter 15 is installed in a clamping mode, the installation and the disassembly are convenient, the spring shock absorber 16 can reduce the shaking of the signal transmitter in the clamping groove 10, and the service time of the signal transmitter 15 is prolonged.
According to the invention, the top outer wall of the clamping groove 10 is fixed with the connecting cylinder 13 through the screw, the inner wall of the connecting cylinder 13 is connected with the telescopic rod 12 in a sliding manner, the top outer wall of the telescopic rod 12 is fixed with the top plate 9 through the screw, the outer wall of one side of the connecting cylinder 13 is provided with the fastening knob 14, the length of the telescopic rod 12 is adjusted according to the height of the signal transmitter 15, the fastening knob 14 is fixed, the top plate 9 can play a limiting role on the signal transmitter 15, and the top plate 9 can also play a rainproof effect.
According to the invention, the partition plate 18 is welded on the inner wall of the top of the signal processing box 8, the heat dissipation fans 17 are fixed on the inner wall of the top and the inner wall of the bottom of the signal processing box 8 through screws, the ventilation groove 22 is formed in the outer wall of one side of the signal processing box 8, the inclined plate 23 is welded on the outer wall of one side of the signal processing box 8, when the heat in the device is high, a worker can open the heat dissipation fans 17 to effectively dissipate the heat in the device, and the heat dissipation effect in the signal processing box 8 is improved.
According to the invention, the transverse plate 25 is welded on the outer wall of one side of the signal processing box 8, the baffle plate 24 is welded on the outer wall of the top of the transverse plate 25, the spring 27 is arranged on the inner wall of one side of the signal processing box 8, the second clamping plate 26 is arranged at the other end of the spring 27, the dust filter screen 21 is clamped on the outer wall of one side of the second clamping plate 26, the clamping block 20 is arranged on the inner wall of one side of the signal processing box 8, the dust filter screen 21 is clamped on the inner wall of the clamping block 20, the pull ring 19 is welded on the outer wall of the top of the dust filter screen 21, the dust filter screen 21 is clamped inside the baffle plate 24 and the second clamping plate 26, the pull ring 19 is pulled to realize quick installation and disassembly of the dust filter screen 21, the dust filter screen 21 can prevent dust from entering the inside of the device, and the dustproof effect of the device is improved.
The device is connected with a power supply, when the electric wire of the device is connected, a cable is wound on the electric wire winding drum 11, the first hydraulic rod 4 is connected with a hydraulic system, the length of the first hydraulic rod 4 is adjusted to enable the clamping plate 5 to clamp the electric wire on the electric wire winding drum 11, the clamping plate 5 is of an arc structure and is more attached to the surface of the electric wire winding drum 11, the clamping effect is better, the spring shock absorber 16 can reduce the shake of a signal transmitter in the clamping groove 10, the service time of the signal transmitter 15 is prolonged, after the signal transmitter 15 is installed, the length of the telescopic rod 12 is adjusted according to the height of the signal transmitter 15, the fastening knob 14 is fixed, the top plate 9 can limit the signal transmitter 15, the top plate 9 can also play a rainproof effect, when the heat in the device is high, a worker can open the heat dissipation fan 17 to effectively dissipate the heat in the device, the inside radiating effect of signal processing case 8 has been improved, will strain dirt net 21 joint in baffle 24 and second joint board 26's inside, and the quick installation and the dismantlement to strain dirt net 21 can be realized to pulling pull ring 19, strain dirt net 21 can prevent that the dust from entering into the inside of device, have improved the dustproof effect of device.
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 (4)
1. A5G signal transmission device with a protective structure comprises a supporting base (2), it is characterized in that the outer wall of one side of the supporting base (2) is provided with a connecting rod (1), the other end of the connecting rod (1) is provided with a connecting plate (3), the outer wall of one side of the connecting plate (3) is provided with first hydraulic rods (4) which are distributed at equal intervals, and the other end of the first hydraulic rod (4) is provided with a clamping and connecting plate (5), the clamping and connecting plate (5) is of an arc-shaped structure, a supporting column (6) is arranged on the outer wall of the top of the supporting base (2), the inner wall of the top of the supporting column (6) is movably connected with rotating rods (7) which are distributed at equal intervals, the outer wall of each rotating rod (7) is provided with a wire winding drum (11), the signal processing box (8) is arranged on the outer wall of the top of the supporting base (2), and the clamping mechanism is arranged on the outer wall of the top of the supporting base (2);
a partition plate (18) is arranged on the inner wall of the top of the signal processing box (8), and heat dissipation fans (17) are arranged on the inner walls of the top and the bottom of the signal processing box (8);
the outer wall of one side of the signal processing box (8) is provided with a ventilation groove (22), and the outer wall of one side of the signal processing box (8) is provided with an inclined plate (23);
a transverse plate (25) is arranged on the outer wall of one side of the signal processing box (8), a baffle plate (24) is arranged on the outer wall of the top of the transverse plate (25), a spring (27) is arranged on the inner wall of one side of the signal processing box (8), a second clamping plate (26) is arranged at the other end of the spring (27), and a dust filtering net (21) is clamped on the outer wall of one side of the second clamping plate (26);
one side inner wall of signal processing case (8) has joint piece (20), and strains dirt net (21) joint in the inner wall of joint piece (20), and the top outer wall of straining dirt net (21) is provided with pull ring (19).
2. The 5G signal transmission device with the protection structure according to claim 1, wherein the clamping mechanism comprises a clamping groove (10), and the inner wall of the clamping groove (10) is clamped with the signal transmitter (15).
3. The 5G signal transmission device with the protection structure according to claim 2, wherein the inner wall of the clamping groove (10) is slidably connected with a sliding plate, and the bottom outer wall of the sliding plate and the top outer wall of the supporting base (2) are provided with the same spring damper (16).
4. The 5G signal transmission device with the protection structure according to claim 3, wherein a connecting cylinder (13) is arranged on the outer wall of the top of the clamping groove (10), a telescopic rod (12) is slidably connected to the inner wall of the connecting cylinder (13), a top plate (9) is arranged on the outer wall of the top of the telescopic rod (12), and a fastening knob (14) is arranged on the outer wall of one side of the connecting cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011250714.XA CN112272477B (en) | 2020-11-10 | 2020-11-10 | 5G signal transmission device with protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011250714.XA CN112272477B (en) | 2020-11-10 | 2020-11-10 | 5G signal transmission device with protective structure |
Publications (2)
| Publication Number | Publication Date |
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| CN112272477A CN112272477A (en) | 2021-01-26 |
| CN112272477B true CN112272477B (en) | 2021-09-17 |
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| CN202011250714.XA Active CN112272477B (en) | 2020-11-10 | 2020-11-10 | 5G signal transmission device with protective structure |
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| CN208856699U (en) * | 2018-08-03 | 2019-05-14 | 天津市金钟东大电力安装工程有限责任公司 | A kind of box cable reel installation being readily transported |
| CN210064800U (en) * | 2019-06-25 | 2020-02-14 | 徐小冬 | Cable winding and unwinding devices is used in subway electromechanical construction |
| CN210160686U (en) * | 2019-07-22 | 2020-03-20 | 河南省泰重起重机械有限公司 | Crane winding drum assembling device |
| CN210574906U (en) * | 2019-09-12 | 2020-05-19 | 广州电力通信网络有限公司 | Warning device for power communication maintenance |
| CN210955675U (en) * | 2019-11-07 | 2020-07-07 | 铜仁职业技术学院 | Card placer is used in english teaching |
| CN211240432U (en) * | 2019-12-27 | 2020-08-11 | 范丽 | Power communication heat dissipation dust keeper |
| CN211655292U (en) * | 2019-07-02 | 2020-10-09 | 上海淑源通讯科技有限公司 | Fixing device is used in antenna production |
| CN211827976U (en) * | 2020-05-26 | 2020-10-30 | 湖南软件职业学院 | Tourist attraction is with propaganda device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661122A (en) * | 2020-05-25 | 2020-09-15 | 胡勇强 | Prefabricated transfer device for assembly type structure |
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2020
- 2020-11-10 CN CN202011250714.XA patent/CN112272477B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208856699U (en) * | 2018-08-03 | 2019-05-14 | 天津市金钟东大电力安装工程有限责任公司 | A kind of box cable reel installation being readily transported |
| CN210064800U (en) * | 2019-06-25 | 2020-02-14 | 徐小冬 | Cable winding and unwinding devices is used in subway electromechanical construction |
| CN211655292U (en) * | 2019-07-02 | 2020-10-09 | 上海淑源通讯科技有限公司 | Fixing device is used in antenna production |
| CN210160686U (en) * | 2019-07-22 | 2020-03-20 | 河南省泰重起重机械有限公司 | Crane winding drum assembling device |
| CN210574906U (en) * | 2019-09-12 | 2020-05-19 | 广州电力通信网络有限公司 | Warning device for power communication maintenance |
| CN210955675U (en) * | 2019-11-07 | 2020-07-07 | 铜仁职业技术学院 | Card placer is used in english teaching |
| CN211240432U (en) * | 2019-12-27 | 2020-08-11 | 范丽 | Power communication heat dissipation dust keeper |
| CN211827976U (en) * | 2020-05-26 | 2020-10-30 | 湖南软件职业学院 | Tourist attraction is with propaganda device |
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| CN112272477A (en) | 2021-01-26 |
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