CN114024621A - Wireless quantum communication device - Google Patents
Wireless quantum communication device Download PDFInfo
- Publication number
- CN114024621A CN114024621A CN202111197169.7A CN202111197169A CN114024621A CN 114024621 A CN114024621 A CN 114024621A CN 202111197169 A CN202111197169 A CN 202111197169A CN 114024621 A CN114024621 A CN 114024621A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- communication device
- driven gear
- quantum
- quantum communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/70—Photonic quantum communication
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- 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
- H05K5/06—Hermetically-sealed 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
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
- H04L9/0855—Quantum cryptography involving additional nodes, e.g. quantum relays, repeaters, intermediate nodes or remote nodes
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides a wireless quantum communication device which comprises an installation shell, wherein a fixed shell is fixedly connected to the rear end of the installation shell, and rotating assemblies are arranged inside the installation shell and the fixed shell. Can drive the driving gear rotation fixed with the second pivot through the servo motor who sets up, thereby can drive driven gear and rotate, and then can drive the quantum receiving terminal and rotate on the horizontal plane, the step motor who sets up can drive the quantum receiving terminal and rotate on vertical face, thereby can carry out the regulation of multi-angle to the quantum receiving terminal, thereby can prolong the butt joint time of quantum receiving terminal and the transmitting terminal of quantum repeater, can pass through the oil circuit circulation subassembly that sets up and go into the spacing inslot through the oil pump with the lubricating oil in the liquid reserve tank through the filtering pump of rose box, make lubricating oil can lubricate between spacing groove and the spacing ring, make driven gear more steady when rotating.
Description
Technical Field
The invention relates to the technical field of communication devices, in particular to a wireless quantum communication device.
Background
The quantum communication is a novel communication mode for information transmission by using a quantum superposition state and an entanglement effect, provides absolute security assurance which cannot be intercepted and cracked by calculation based on three principles of uncertainty, measurement collapse and unclonable in quantum mechanics, and is mainly divided into two types of quantum invisible transmission and quantum key distribution.
Quantum invisible state joint measurement is adopted to realize information transmission of quantum states, wherein measurement and determination of quantum state information still need assistance of the existing communication technology. The entanglement in the quantum invisible transmission state has to be broken through on key technologies such as preparation, distribution and measurement, is in the stages of theoretical research and experimental exploration, and has a large difference from practicality.
Quantum key distribution, weighing of sub-ciphers, realization of quantum key sharing of security of both communication parties by means of transmission measurement in a quantum superposition state, and realization of unconditional and absolutely secure communication through a symmetric encryption system of one-time pad, i.e. both communication parties use ciphers as long as plaintext to perform bit-by-bit encryption and decryption operations.
When carrying out wireless quantum communication, need use the photon that the quantum receiving terminal received the transmission of quantum repeater, carry out code conversion to the photon, the transmission of quantum repeater generally carries for satellite or unmanned aerial vehicle etc. current quantum receiving terminal is mostly fixed structure, can not carry out multi-angle regulation for the photon of receiving terminal receives the mouth and the transmitting terminal of quantum repeater, and the time of carrying out the butt joint is shorter.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a wireless quantum communication device, which solves the problems that the conventional quantum receiving end is mostly of a fixed structure and cannot be adjusted in multiple angles, so that the butt joint time between a photon receiving port of the receiving end and the transmitting end of a quantum repeater is short.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a wireless quantum communication device, includes the installation casing, the fixed casing of rear end fixedly connected with of installation casing, the inside of installation casing and fixed casing is provided with rotating assembly, the upper end bolted connection of installation casing and fixed casing has sealed lid, the equal fixedly connected with of lower extreme four corners department of installation casing supports the lower margin, the front end of installation casing is provided with oil circuit circulation subassembly, the top of sealed lid is provided with the supporting disk, the upper end bolted connection of supporting disk has the fixed disk, the upper end fixedly connected with mount of supporting disk, one side upper end fixedly connected with step motor of mount, the inside of mount is provided with the quantum receiving terminal.
Preferably, the deflection angle measuring instrument is fixedly connected to the middle position of the bottom end of the mounting shell, and a limiting hole is formed in the middle position of the bottom end inside the mounting shell.
Preferably, the position that the inside bottom of installation casing is located spacing hole outer lane has seted up the spacing groove, the lower extreme intermediate position fixedly connected with servo motor of fixed casing, servo motor's output runs through the lower extreme fixedly connected with second pivot of fixed casing.
Preferably, the rotating assembly comprises a driven gear and a driving gear, the driving gear is meshed with the driven gear, a first rotating shaft is fixedly connected to the middle position of the lower end of the driven gear, the first rotating shaft is rotatably connected with a limiting hole, and the middle position of the driving gear is fixedly connected with a second rotating shaft.
Preferably, the lower end outer ring of the driven gear is fixedly connected with a limiting ring, the limiting ring is rotatably connected with a limiting groove, the middle position of the upper end of the driven gear is fixedly connected with a supporting column, and the upper end of the supporting column penetrates through the middle position of the lower end of the sealing cover and the supporting disk and is fixedly connected with the middle position of the lower end of the supporting disk.
Preferably, the oil circuit circulation assembly comprises a liquid storage tank fixed in the middle of the front end of the installation shell, the front end of the installation shell is fixedly connected with an oil pump on the right side of the liquid storage tank, the front end of the installation shell is fixedly connected with a filter tank on the right side of the oil pump, and connecting pieces are fixedly connected in the middle of the left side and the right side of the installation shell.
Preferably, the first connecting pipe of fixedly connected with between the input of oil pump and the right side of liquid reserve tank, fixedly connected with second connecting pipe between the output of oil pump and the left side of rose box, fixedly connected with transfer line between the right side of rose box and the connecting piece that is located installation casing right side, the left side of liquid reserve tank and be located the fixedly connected with back flow between the left connecting piece of installation casing, the through-hole has all been seted up between connecting piece and the spacing groove.
Preferably, the quantum receiving end includes the connecting block, the intermediate position fixedly connected with third pivot of connecting block, the third pivot rotates with the mount to be connected, the one end of third pivot and step motor's output fixed connection.
Preferably, the rear end of the connecting block is fixedly connected with an encoding conversion mechanism, and the front end of the connecting block is fixedly connected with a photon receiving mechanism.
(III) advantageous effects
The invention provides a wireless quantum communication device and a method thereof. The method has the following beneficial effects:
1. this wireless quantum communication device, servo motor through setting up can drive and rotate with the fixed driving gear of second pivot to can drive driven gear and rotate, and then can drive the quantum receiving terminal and rotate on the horizontal plane, the step motor of setting can drive the quantum receiving terminal and rotate on vertical face, thereby can carry out the regulation of multi-angle to the quantum receiving terminal, thereby can prolong the butt joint time of the transmitting terminal of quantum receiving terminal and quantum repeater.
2. This wireless quantum communication device can pass through the oil circuit circulation subassembly that sets up and go into the spacing inslot through the filtration pump of rose box with the lubricating oil in the liquid reserve tank through the oil pump for lubricating oil can be lubricated between spacing groove and the spacing ring, makes driven gear more steady when rotating.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a schematic view of the rotating assembly of the present invention;
FIG. 4 is a schematic view of the internal structure of the mounting housing and the fixing housing of the present invention;
FIG. 5 is a schematic view of the driven gear of the present invention;
fig. 6 is a schematic diagram of a quantum receiving end structure according to the present invention.
Wherein, 1, installing a shell; 2. a sealing cover; 3. supporting the ground feet; 4. a liquid storage tank; 5. a first connecting pipe; 6. an oil pump; 7. a second connecting pipe; 8. a filter box; 9. a return pipe; 10. a transfusion tube; 11. a connecting member; 12. a support disc; 13. a stationary housing; 14. fixing the disc; 15. a fixed mount; 16. a stepping motor; 17. a quantum receiving end; 18. a deflection angle meter; 19. a servo motor; 20. a driven gear; 21. a driving gear; 22. a limiting groove; 23. a limiting hole; 24. a first rotating shaft; 25. a limiting ring; 26. a second rotating shaft; 27. a support pillar; 28. connecting blocks; 29. a third rotating shaft; 30. a code conversion mechanism; 31. a photon receiving mechanism.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-2, an embodiment of the present invention provides a wireless quantum communication device, including an installation housing 1, a fixed housing 13 is fixedly connected to a rear end of the installation housing 1, a rotating assembly is disposed inside the installation housing 1 and the fixed housing 13, a sealing cover 2 is bolted to upper ends of the installation housing 1 and the fixed housing 13, supporting feet 3 are fixedly connected to four corners of a lower end of the installation housing 1, an oil circuit circulating assembly is disposed at a front end of the installation housing 1, a supporting plate 12 is disposed above the sealing cover 2, a fixed plate 14 is bolted to an upper end of the supporting plate 12, a fixing frame 15 is fixedly connected to an upper end of the supporting plate 12, a stepping motor 16 is fixedly connected to an upper end of one side of the fixing frame 15, a quantum receiving end 17 is disposed inside the fixing frame 15, and a deflection angle meter 18 is fixedly connected to a middle position of a bottom end of the installation housing 1.
As shown in fig. 3-5, a limiting hole 23 is formed at the middle position of the inner bottom end of the mounting housing 1, a limiting groove 22 is formed at the position of the inner bottom end of the mounting housing 1, which is located at the outer ring of the limiting hole 23, a servo motor 19 is fixedly connected at the middle position of the lower end of the fixed housing 13, an output end of the servo motor 19 penetrates through the lower end of the fixed housing 13 and is fixedly connected with a second rotating shaft 26, the rotating assembly comprises a driven gear 20 and a driving gear 21, the driving gear 21 is meshed with the driven gear 20, a first rotating shaft 24 is fixedly connected at the middle position of the lower end of the driven gear 20, the first rotating shaft 24 is rotatably connected with the limiting hole 23, the middle position of the driving gear 21 is fixedly connected with the second rotating shaft 26, a limiting ring 25 is fixedly connected at the outer ring of the lower end of the driven gear 20, the limiting ring 25 is rotatably connected with the limiting groove 22, and a supporting column 27 is fixedly connected at the middle position of the upper end of the driven gear 20, the upper end of support column 27 runs through the lower extreme intermediate position fixed connection of sealed lid 2 and supporting disk 12, servo motor 19 and step motor 16 start simultaneously, servo motor 19 drives second pivot 26 and rotates, thereby can drive driving gear 21 and rotate, meshing through the gear can drive driven gear 20 and rotate around spacing hole 23 and spacing groove 22 through first pivot 24 and spacing ring 25, supporting disk 12 that can drive support column 27 upper end rotates, thereby can drive the fixed disk 14 upper end and be located the inside quantum receiving terminal 17 of mount 15 and rotate, step motor 16 of setting rotates through driving third pivot 29, thereby can drive quantum receiving terminal 17 and rotate, and then can realize the multi-angle regulation to quantum receiving terminal 17.
As shown in fig. 4, the oil circuit circulating assembly includes a liquid storage tank 4 fixed at the middle position of the front end of the mounting housing 1, an oil pump 6 fixedly connected at the position of the front end of the mounting housing 1 on the right side of the liquid storage tank 4, a filter tank 8 fixedly connected at the position of the front end of the mounting housing 1 on the right side of the oil pump 6, connecting pieces 11 fixedly connected at the middle positions of the left and right sides of the mounting housing 1, a first connecting pipe 5 fixedly connected between the input end of the oil pump 6 and the right side of the liquid storage tank 4, a second connecting pipe 7 fixedly connected between the output end of the oil pump 6 and the left side of the filter tank 8, a liquid conveying pipe 10 fixedly connected between the right side of the filter tank 8 and the connecting piece 11 on the right side of the mounting housing 1, a return pipe 9 fixedly connected between the left side of the liquid storage tank 4 and the connecting piece 11 on the left side of the mounting housing 1, and a limiting groove 22, through holes are formed between the connecting pieces 11 and the limiting groove 22, the oil circuit circulation subassembly that sets up can pass through first connecting pipe through the lubricating oil of oil pump 6 in with liquid reserve tank 4, go on in the filter tank 8 is gone into to the 7 pump of second connecting pipe, lubricating oil after filter tank 8 filters passes through transfer line 10, it goes into spacing groove 22 to be located 11 pump of right side connecting piece, make lubricating oil lubricate between spacing groove 22 and the spacing ring 25, lubricating oil rethread is located left connecting piece 11 and back flow 9 reflux liquid reserve tank 4, the completion is circulated, make driven gear 20 more steady when rotating.
As shown in fig. 6, the quantum receiving end 17 includes a connection block 28, a third rotation shaft 29 is fixedly connected to a middle position of the connection block 28, the third rotation shaft 29 is rotatably connected to the fixed frame 15, one end of the third rotation shaft 29 is fixedly connected to an output end of the stepping motor 16, a coding conversion mechanism 30 is fixedly connected to a rear end of the connection block 28, and a photon receiving mechanism 31 is fixedly connected to a front end of the connection block 28.
The working principle is as follows: when the device is used, the device is fixed on an open supporting surface outdoors through the supporting feet 3 by using fixing bolts, when the device is butted with a quantum repeater, the servo motor 19 and the stepping motor 16 are started simultaneously, the servo motor 19 drives the second rotating shaft 26 to rotate, so that the driving gear 21 can be driven to rotate, the driven gear 20 can be driven to rotate around the limiting hole 23 and the limiting groove 22 through the first rotating shaft 24 and the limiting ring 25 by meshing of gears, the supporting disk 12 at the upper end of the supporting column 27 can be driven to rotate, so that the quantum receiving end 17 at the upper end of the fixed disk 14 inside the fixed rack 15 can be driven to rotate, the arranged stepping motor 16 drives the third rotating shaft 29 to rotate, so that the quantum receiving end 17 can be driven to rotate, further, the multi-angle adjustment of the quantum receiving end 17 can be realized, and the photon receiving mechanism 31 can be butted with a photon emitting mechanism of the quantum repeater, the photons are captured, and the code conversion mechanism 30 is arranged to decode and convert the photons, so that information transmission is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A wireless quantum communication device comprising a mounting housing (1), characterized in that: the utility model discloses a fixing device for a motor vehicle, including installation casing (1), the inside of installation casing (1) and fixed casing (13) is provided with rotating assembly, the upper end bolted connection of installation casing (1) and fixed casing (13) has sealed lid (2), the equal fixedly connected with of lower extreme four corners department of installation casing (1) supports lower margin (3), the front end of installation casing (1) is provided with oil circuit circulation subassembly, the top of sealed lid (2) is provided with supporting disk (12), the upper end bolted connection of supporting disk (12) has fixed disk (14), the upper end fixedly connected with mount (15) of supporting disk (12), one side upper end fixedly connected with step motor (16) of mount (15), the inside of mount (15) is provided with quantum receiving terminal (17).
2. A wireless quantum communication device according to claim 1, wherein: the deflection angle measuring instrument is characterized in that a deflection angle measuring instrument (18) is fixedly connected to the middle position of the bottom end of the mounting shell (1), and a limiting hole (23) is formed in the middle position of the bottom end of the mounting shell (1).
3. A wireless quantum communication device according to claim 1, wherein: limiting groove (22) have been seted up to the position that the inside bottom of installation casing (1) is located spacing hole (23) outer lane, the lower extreme intermediate position fixedly connected with servo motor (19) of fixed casing (13), the lower extreme fixedly connected with second pivot (26) of fixed casing (13) are run through to the output of servo motor (19).
4. A wireless quantum communication device according to claim 1, wherein: the rotating assembly comprises a driven gear (20) and a driving gear (21), the driving gear (21) is meshed with the driven gear (20), a first rotating shaft (24) is fixedly connected to the middle position of the lower end of the driven gear (20), the first rotating shaft (24) is rotatably connected with a limiting hole (23), and the middle position of the driving gear (21) is fixedly connected with a second rotating shaft (26).
5. The wireless quantum communication device of claim 4, wherein: the utility model discloses a driven gear, including driven gear (20), limiting ring (25), spacing groove (22), driven gear's (20) lower extreme outer lane department fixedly connected with spacing ring (25), spacing ring (25) rotate with spacing groove (22) and are connected, the upper end intermediate position fixedly connected with support column (27) of driven gear (20), the lower extreme intermediate position fixed connection of sealed lid (2) and supporting disk (12) is run through to the upper end of support column (27).
6. A wireless quantum communication device according to claim 1, wherein: the oil circuit circulation assembly comprises a liquid storage tank (4) fixed at the middle position of the front end of an installation shell (1), a position fixedly connected with oil pump (6) is located on the right side of the liquid storage tank (4) at the front end of the installation shell (1), a position fixedly connected with filter box (8) is located on the right side of the oil pump (6) at the front end of the installation shell (1), and connecting pieces (11) are fixedly connected with the middle position of the left side and the right side of the installation shell (1).
7. The wireless quantum communication device of claim 6, wherein: the utility model discloses a quick-witted oil pump, including oil pump (6), the input of oil pump (6) and the right side of liquid reserve tank (4) between first connecting pipe of fixedly connected with (5), fixedly connected with second connecting pipe (7) between the output of oil pump (6) and the left side of rose box (8), fixedly connected with transfer line (10) between the right side of rose box (8) and connecting piece (11) that are located installation casing (1) right side, fixedly connected with back flow (9) between the left side of liquid reserve tank (4) and connecting piece (11) that are located installation casing (1) left, the through-hole has all been seted up between connecting piece (11) and spacing groove (22).
8. A wireless quantum communication device according to claim 1, wherein: quantum receiving terminal (17) are including connecting block (28), the intermediate position fixedly connected with third pivot (29) of connecting block (28), third pivot (29) rotate with mount (15) and are connected, the one end of third pivot (29) and the output fixed connection of step motor (16).
9. A wireless quantum communication device according to claim 8, wherein: the rear end of the connecting block (28) is fixedly connected with an encoding conversion mechanism (30), and the front end of the connecting block (28) is fixedly connected with a photon receiving mechanism (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197169.7A CN114024621A (en) | 2021-10-14 | 2021-10-14 | Wireless quantum communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197169.7A CN114024621A (en) | 2021-10-14 | 2021-10-14 | Wireless quantum communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114024621A true CN114024621A (en) | 2022-02-08 |
Family
ID=80056071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111197169.7A Pending CN114024621A (en) | 2021-10-14 | 2021-10-14 | Wireless quantum communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024621A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957728A (en) * | 2018-07-24 | 2018-12-07 | 程刚 | A kind of quantum communications device of compatible with laser communication |
| CN211238476U (en) * | 2020-01-17 | 2020-08-11 | 赵文辉 | Communication antenna easy to erect for broadcast station |
| CN211624716U (en) * | 2020-01-17 | 2020-10-02 | 汪琛龙 | Communication engineering signal receiving device |
| CN213511912U (en) * | 2020-09-24 | 2021-06-22 | 成都金稷丰机械制造有限公司 | Gear box with lubricating structure for extruder |
| CN213742743U (en) * | 2020-08-26 | 2021-07-20 | 山东艾琳智能科技有限公司 | Gear transmission device of intelligent door lock |
| CN213959133U (en) * | 2020-09-18 | 2021-08-13 | 西安友康通讯科技有限公司 | Omnibearing communication antenna |
| CN113339482A (en) * | 2021-05-31 | 2021-09-03 | 佛山市罗斯特传动设备有限公司 | Lubricating structure of planetary reducer |
-
2021
- 2021-10-14 CN CN202111197169.7A patent/CN114024621A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957728A (en) * | 2018-07-24 | 2018-12-07 | 程刚 | A kind of quantum communications device of compatible with laser communication |
| CN211238476U (en) * | 2020-01-17 | 2020-08-11 | 赵文辉 | Communication antenna easy to erect for broadcast station |
| CN211624716U (en) * | 2020-01-17 | 2020-10-02 | 汪琛龙 | Communication engineering signal receiving device |
| CN213742743U (en) * | 2020-08-26 | 2021-07-20 | 山东艾琳智能科技有限公司 | Gear transmission device of intelligent door lock |
| CN213959133U (en) * | 2020-09-18 | 2021-08-13 | 西安友康通讯科技有限公司 | Omnibearing communication antenna |
| CN213511912U (en) * | 2020-09-24 | 2021-06-22 | 成都金稷丰机械制造有限公司 | Gear box with lubricating structure for extruder |
| CN113339482A (en) * | 2021-05-31 | 2021-09-03 | 佛山市罗斯特传动设备有限公司 | Lubricating structure of planetary reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108303153B (en) | Split water meter | |
| CN114024621A (en) | Wireless quantum communication device | |
| CN207762488U (en) | Universal rotational monitoring device | |
| CN213279903U (en) | Intelligent conference system | |
| CN213426324U (en) | Solar wireless monitor convenient to adjust monitoring range | |
| CN116255543A (en) | Internet big data display equipment | |
| CN111263542A (en) | Improved generation gateway equipment for intelligent house | |
| CN210899316U (en) | Monitoring device for campus safety | |
| CN213259360U (en) | Multifunctional gear box maintenance device | |
| CN207864957U (en) | A kind of video recording structure with rotation angle | |
| CN209072586U (en) | A kind of interactive voice video camera | |
| CN114838259A (en) | Three-dimensional camera cloud platform and camera system of adjusting | |
| CN210518291U (en) | Automatic alignment communication system | |
| CN210391579U (en) | Multi-angle mapping device for aerial mapping | |
| CN206098715U (en) | Simple and direct revolving stage device of antenna | |
| CN218002707U (en) | Binocular holder device for thermal imager and visible light | |
| CN110837274A (en) | Be used for computer network technical information show stand | |
| CN219911097U (en) | Novel peristaltic pump | |
| CN220305655U (en) | Internet of things monitoring and collecting device | |
| CN216313667U (en) | Data acquisition platform based on big data processing | |
| CN218819113U (en) | Remote monitoring management device for constructional engineering mechanical equipment | |
| CN218788793U (en) | Mine video monitoring device with protection mechanism | |
| CN218732206U (en) | Drawable multi-head data line | |
| CN209856657U (en) | Movable security device | |
| CN213982889U (en) | Building elevator intelligent security device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |
|
| RJ01 | Rejection of invention patent application after publication |