CN206059619U - A kind of antenna structure for 4900 5800MHz frequency communications - Google Patents
A kind of antenna structure for 4900 5800MHz frequency communications Download PDFInfo
- Publication number
- CN206059619U CN206059619U CN201621108187.8U CN201621108187U CN206059619U CN 206059619 U CN206059619 U CN 206059619U CN 201621108187 U CN201621108187 U CN 201621108187U CN 206059619 U CN206059619 U CN 206059619U
- Authority
- CN
- China
- Prior art keywords
- metallic plate
- fixedly connected
- plate
- top surface
- metal
- 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.)
- Expired - Fee Related
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model discloses a kind of antenna structure for 4900 5800MHz frequency communications, including reflected bottom plate, metal transmission line and sheet metal, the reflected bottom plate top surface left end is fixedly connected with the first bonding jumper, first bonding jumper and the first metallic plate chain connection, reflected bottom plate top surface right-hand member is fixedly connected with the second bonding jumper, second bonding jumper and the second metallic plate chain connection, first metallic plate and the second metallic plate bottom surface have been fixedly connected with the 3rd bonding jumper, first metallic plate and the second metal plate top surface have been fixedly connected with some first radiating fins, first radiating fin is joined end to end successively by the second radiating fin, first metallic plate and the equal chain connection of the second sheetmetal side have metal support bar, reflected bottom plate side is fixedly connected with cylindrical metal block, metal support bar and cylindrical metal block snapping.This utility model can improve the deficiencies in the prior art, make antenna have the functions such as waterproof, radiating and damping, while can also be extended to antenna area.
Description
Technical field
This utility model is related to a kind of antenna, especially a kind of antenna structure for 4900-5800MHz frequency communications.
Background technology
At present, plate antenna structure is widely used in the antenna structure of 4900-5800MHz frequency communications, plate antenna
Radiating element typically adopt oscillator mode or chip unit mode, oscillator mode technology maturation, index are excellent, be it is a kind of often
Technology, but the thickness of antenna is thicker;Paster radiating element, its advantage are that section is low, therefore the thickness of thin of antenna, weight
Gently, low cost.203377375 U of Chinese utility model patent CN discloses a kind of low profile platy beam antenna.This structure
The plate antenna of design, it is impossible to realize the functions such as waterproof, radiating and damping, while can not be extended to the area of antenna, limits
Its range of application is made.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of day knot for 4900-5800MHz frequency communications
Structure, can solve the problem that the deficiencies in the prior art, optimize the structure of antenna, make antenna have the functions such as waterproof, radiating and damping, together
When antenna area can also be extended.
To solve above-mentioned technical problem, technical solution adopted in the utility model is as follows.
A kind of antenna structure for 4900-5800MHz frequency communications, including reflected bottom plate, metal transmission line and metal
Piece, sheet metal are fixedly connected with reflected bottom plate, and metal transmission line, the reflected bottom plate top are provided between sheet metal and reflected bottom plate
The left end in face is fixedly connected with the first bonding jumper, the first bonding jumper and the first metallic plate chain connection, the right side of reflected bottom plate top surface
End is fixedly connected with the second bonding jumper, the second bonding jumper and the second metallic plate chain connection, the first metallic plate and the second metallic plate
Bottom surface be fixedly connected with the 3rd bonding jumper, the bottom surface of the 3rd bonding jumper is fixedly connected with the first rubber strip, the first rubber strip
Contact with the top surface of reflected bottom plate, the first metallic plate and the second metallic plate are provided with some first manholes, and first is circular
The top surface that glass plate, the first metallic plate and the second metallic plate are fixedly connected with inside through hole has been fixedly connected with some first radiatings
Fin, the first radiating fin are joined end to end successively by the second radiating fin, and the top surface of the first metallic plate is provided with tapped blind hole, the
The top surface of two metallic plates is fixedly connected with banking stop, and banking stop is provided with the tapped through hole corresponding with tapped blind hole, and banking stop leads to
Cross bolt to be fixedly connected with the first metallic plate, the top surface of reflected bottom plate is fixedly connected with metal support block, the first metallic plate and
The side that the equal chain connection in side of two metallic plates has metal support bar, reflected bottom plate is fixedly connected with cylindrical metal block, gold
Category support bar and cylindrical metal block snapping.
Preferably, first radiating fin is provided with some second manholes.
Preferably, the top surface of the metal support block is fixedly connected with rubber blanket, rubber blanket respectively with the first metallic plate
It is connected with the bottom surface contact of the second metallic plate.
Using the beneficial effect brought by above-mentioned technical proposal it is:In this utility model, the left end of reflected bottom plate top surface is solid
Surely the first bonding jumper, the first bonding jumper and the first metallic plate chain connection are connected with, the right-hand member of reflected bottom plate top surface is fixedly connected
There are the second bonding jumper, the second bonding jumper and the second metallic plate chain connection.First metallic plate and the second metallic plate can be flexible
Adjustment and the position of reflected bottom plate, when antenna applications are in outdoor, can be by the first metallic plate and the second metal plate closing;The same day
Line application indoors when, the first metallic plate and the second metallic plate can be opened, not only contribute to the radiating of antenna, can also be right
The area of antenna is extended accordingly.The bottom surface of the first metallic plate and the second metallic plate has been fixedly connected with the 3rd bonding jumper,
The bottom surface of the 3rd bonding jumper is fixedly connected with the first rubber strip, and the first rubber strip is contacted with the top surface of reflected bottom plate, the 3rd gold medal
Category bar effectively can be prevented when antenna applications are in outdoor with reference to the first rubber strip, and rainwater laterally approaches into inner antenna.
First rubber strip may also operate as corresponding cushioning effect simultaneously, prevent the 3rd bonding jumper in strong wind from rigidly connecing with reflected bottom plate
Touch, cause the damage to reflected bottom plate.First metallic plate and the second metallic plate are provided with some first manholes, and first is circular
Glass plate is fixedly connected with inside through hole.Glass plate can quickly and be clearly observed when maintenance test is carried out to antenna
To internal situation.Sunlight can also be incorporated into inner antenna simultaneously, prevent from applying at outdoor, cause inside through moisture
It is mouldy, it is to avoid impact is produced on the normal work of antenna.First metallic plate has been fixedly connected with the top surface of the second metallic plate
Some first radiating fins, the first radiating fin can effectively increase the heat exchange area of antenna and outer gas stream, enhanced heat exchange
Effect.First radiating fin is joined end to end successively by the second radiating fin, and the second radiating fin can effectively extend air-flow
The time of staying between the first radiating fin, air-flow is made to carry out sufficient heat exchange.Further, the first radiating fin is provided with
Some second manholes, the second manhole can effectively increase the flow rate of air-flow, enhanced heat exchange effect.First metal
The top surface of plate is provided with tapped blind hole, and the top surface of the second metallic plate is fixedly connected with banking stop, and banking stop is provided with and tapped blind hole phase
Corresponding tapped through hole, banking stop are fixedly connected with the first metallic plate by bolt, so can be in the first metallic plate and second
Metallic plate is relative in closure to be fixedly connected.Further, the top surface of reflected bottom plate is fixedly connected with metal support block, metal
The top surface of bracer is fixedly connected with rubber blanket, and rubber blanket is connected with the first metallic plate with the bottom surface contact of the second metallic plate respectively.
Metal support block can ensure that the distance between the first metallic plate and the second metallic plate and reflected bottom plate.Rubber blanket can be effective
Cushioning effect is played, the first metallic plate and the second metallic plate and metal support block rigid contact is prevented.First metallic plate and second
The side that the equal chain connection in side of metallic plate has metal support bar, reflected bottom plate is fixedly connected with cylindrical metal block, metal
Support bar and cylindrical metal block snapping.When the first metallic plate and the second metallic plate are in opening, metal support bar can
Made with fixed support the effectively played to the first metallic plate and the second metallic plate, prevent the first metallic plate and the second metallic plate phase
For reflected bottom plate produces relative movement.
Description of the drawings
Fig. 1 is the structure chart of one specific embodiment of this utility model.
Fig. 2 is the structure chart of the first radiating fin in one specific embodiment of this utility model.
Fig. 3 is the connection figure of the second radiating fin in one specific embodiment of this utility model.
Fig. 4 is the structure chart of the second rubber strip in one specific embodiment of this utility model.
Fig. 5 be the novel integrated feed+network of 4900-5800MHz antennas in one specific embodiment of this utility model+
The structure chart of radiating element.
In figure:1st, reflected bottom plate;2nd, metal transmission line;3rd, sheet metal;4th, the first bonding jumper;5th, the first metallic plate;6th,
Two bonding jumpers;7th, the second metallic plate;8th, the 3rd bonding jumper;9th, the first rubber strip;10th, the first manhole;11st, glass plate;12、
First radiating fin;13rd, the second radiating fin;14th, tapped blind hole;15th, banking stop;16th, tapped through hole;17th, bolt;18th, gold
Category support block;19th, metal support bar;20th, cylindrical metal block;21st, the second manhole;22nd, rubber blanket;23rd, the second rubber
Bar;24th, conical socket;25th, feed;26th, network;27th, radiating element.
Specific embodiment
The standardized element arrived used in this utility model can commercially, and shaped piece is according to description and attached
The record of figure can carry out it is customized, the concrete connected mode of each part using bolt ripe in prior art, rivet,
The conventional meanses such as welding, stickup, will not be described in detail herein.
Reference picture 1-5, one specific embodiment of this utility model include reflected bottom plate 1, metal transmission line 2 and sheet metal
3, sheet metal 3 is fixedly connected with reflected bottom plate 1, and metal transmission line 2, the reflection bottom are provided between sheet metal 3 and reflected bottom plate 1
The left end of 1 top surface of plate is fixedly connected with the first bonding jumper 4,5 chain connection of the first bonding jumper 4 and the first metallic plate, reflected bottom plate 1
The right-hand member of top surface is fixedly connected with the second bonding jumper 6,7 chain connection of the second bonding jumper 6 and the second metallic plate, the first metallic plate 5
The 3rd bonding jumper 8 is fixedly connected with the bottom surface of the second metallic plate 7, the bottom surface of the 3rd bonding jumper 8 is fixedly connected with the first rubber
Adhesive tape 9, the first rubber strip 9 are contacted with the top surface of reflected bottom plate 1, and the first metallic plate 5 and the second metallic plate 7 are provided with some
One manhole 10, is fixedly connected with glass plate 11, the first metallic plate 5 and the second metallic plate 7 inside the first manhole 10
Top surface has been fixedly connected with some first radiating fins 12, and the first radiating fin 12 is by the second radiating fin 13 successively head and the tail phase
Even, the top surface of the first metallic plate 5 is provided with tapped blind hole 14, and the top surface of the second metallic plate 7 is fixedly connected with banking stop 15, banking stop
15 are provided with the tapped through hole 16 corresponding with tapped blind hole 14, and banking stop 15 is fixedly connected with the first metallic plate 5 by bolt 17,
The top surface of reflected bottom plate 1 is fixedly connected with the equal hinge in side of metal support block 18, the first metallic plate 5 and the second metallic plate 7 and connects
Metal support bar 19 is connected to, the side of reflected bottom plate 1 is fixedly connected with cylindrical metal block 20, metal support bar 19 and cylinder
20 snapping of metal derby.In the present embodiment, the left end of 1 top surface of reflected bottom plate is fixedly connected with the first bonding jumper 4, the first bonding jumper 4 with
First metallic plate, 5 chain connection, the right-hand member of 1 top surface of reflected bottom plate are fixedly connected with the second bonding jumper 6, the second bonding jumper 6 and
Two metallic plates, 7 chain connection.First metallic plate 5 and the second metallic plate 7 can flexibly adjust the position with reflected bottom plate 1, when
First metallic plate 5 and the second metallic plate 7 can be closed by antenna applications at outdoor;When antenna applications indoors when, can be by
First metallic plate 5 and the second metallic plate 7 are opened, and not only contribute to the radiating of antenna, and the area of antenna can also be carried out accordingly
Extension.The bottom surface of the first metallic plate 5 and the second metallic plate 7 has been fixedly connected with the 3rd bonding jumper 8, the bottom of the 3rd bonding jumper 8
Face is fixedly connected with the first rubber strip 9, and the first rubber strip 9 is contacted with the top surface of reflected bottom plate 1, and the 3rd bonding jumper 8 combines
One rubber strip 9 effectively can be prevented when antenna applications are in outdoor, and rainwater laterally approaches into inner antenna.While the first rubber
Adhesive tape 9 may also operate as corresponding cushioning effect, prevents the 3rd bonding jumper 8 and 1 rigid contact of reflected bottom plate in strong wind, causes
Damage to reflected bottom plate 1.First metallic plate 5 and the second metallic plate 7 are provided with some first manholes 10, and first is circular logical
Glass plate 11 is fixedly connected with inside hole 10.Glass plate 11 can be when maintenance test be carried out to antenna, quickly and clearly
It was observed that the situation of inside.Sunlight can also be incorporated into inner antenna simultaneously, prevent from applying at outdoor, cause through moisture
Internal is mouldy, it is to avoid produce impact to the normal work of antenna.The top surface of the first metallic plate 5 and the second metallic plate 7 is fixed
Some first radiating fins 12 are connected with, the first radiating fin 12 can effectively increase the heat-transfer surface of antenna and outer gas stream
Product, enhanced heat exchange effect.First radiating fin 12 is joined end to end successively by the second radiating fin 13, and the second radiating fin 13 can
Effectively to extend the time of staying of the air-flow between the first radiating fin 12, air-flow is made to carry out sufficient heat exchange.Further
, the first radiating fin 12 is provided with some second manholes 21, and the second manhole 21 can effectively increase the stream of air-flow
Passband, enhanced heat exchange effect.The top surface of the first metallic plate 5 is provided with tapped blind hole 14, and the top surface of the second metallic plate 7 is fixedly connected with
Banking stop 15, banking stop 15 are provided with the tapped through hole 16 corresponding with tapped blind hole 14, and banking stop 15 passes through bolt 17 and first
Metallic plate 5 is fixedly connected, and so can be fixedly connected when closing relatively in the first metallic plate 5 and the second metallic plate 7.Further
, the top surface of reflected bottom plate 1 is fixedly connected with metal support block 18, and the top surface of metal support block 18 is fixedly connected with rubber blanket
22, rubber blanket 22 is connected with the first metallic plate 5 with the bottom surface contact of the second metallic plate 7 respectively.Metal support block 18 can ensure that
The distance between first metallic plate 5 and the second metallic plate 7 and reflected bottom plate 1.Rubber blanket 22 can effectively play cushioning effect,
Prevent the first metallic plate 5 and the second metallic plate 7 and 18 rigid contact of metal support block.First metallic plate 5 and the second metallic plate 7
The side that the equal chain connection in side has metal support bar 19, reflected bottom plate 1 is fixedly connected with cylindrical metal block 20, and metal is supported
Bar 19 and 20 snapping of cylindrical metal block.When the first metallic plate 5 and the second metallic plate 7 are in opening, metal support bar
19 can effectively play the fixed support work to the first metallic plate 5 and the second metallic plate 7, prevent the first metallic plate 5 and second
Metallic plate 7 produces relative movement relative to reflected bottom plate 1.
In addition, the contact surface of the first metallic plate 5 and the second metallic plate 7 has been fixedly connected with the second rubber strip in the present embodiment
23.Second rubber strip 23 effectively can be prevented after the first metallic plate 5 and the second metallic plate 7 are closed, and contact surface also leaves sky
Gap.Space of the rainwater along between contact surface is avoided to be flowed into inner antenna, the normal operation to the electrical equipment of inner antenna
Produce harmful effect.Further, the surface of the second rubber strip 23 is also provided with some conical sockets 24, and conical socket 24 can be produced
The corresponding absorption affinity of life, can effectively prevent the first metallic plate 5 and the second metallic plate 7 from producing relative movement, while also having
Certain liquid storage capacity, prevents rainwater from flowing into inner antenna.
This utility model be background technology quote patent documentation on the basis of improve, wherein reflected bottom plate,
The structure of metal transmission line and sheet metal, function and connected mode in the patent documentation that background technology is quoted have been carried out filling
The disclosure divided, belongs to prior art, will not be described in detail herein.
In addition, 4900-5800MHz antennas can also be chosen to install in the reflected bottom plate 1 in the present embodiment novel integrated
Feed+network+radiating element, using being welded to form more than existing 4900-5800MHz antennas feed+network+radiating element, this
Planting welding single polarization omnidirectional oscillator has four shortcomings:1st, this kind of mode easily cause weld pads aoxidize, come off, sharp convex, pore,
The defects such as pin hole, short circuit, solder joint or bead, can affect to electric property, and structural strength is poor;2nd, assemble complicated,
Installation time is long, and inefficiency is unfavorable for batch production;3rd, process raw material many, the circuit board printing of feed frequency PCB is formed, together
Production cost under volume is 4 times of aluminium sheet punching press, and network is that the exploitation of RG141 cables is formed, low production efficiency and high cost;4、
The more difficult control of machining accuracy, because the factor of frock clamp and anthropic factor impact Product Precision is more during welding, concordance is poor.
Compared with present 4900-5800MHz antenna feed+networks+radiating element, new 4900-5800MHz antennas one
The advantage of body formula feed+network+radiating element mainly has:1st, it is made up of feed 25, network 26, radiating element 27, is closed by aluminum
Gold is once stamping, and structural strength is good;2nd, it is once stamping by mould, without the need for assembling in addition, easy to assembly, installation time
It is low;3rd, process time is short, and processing raw material is few, low cost;4th, once-forming using stamping die, machining accuracy is high, and processing side
Just, concordance is good.
The devices such as the first radiating fin, the second radiating fin, the first rubber strip and rubber blanket used in this utility model
Belong to ripe prior art, will not be described in detail herein its concrete structure.
In description of the present utility model, it is to be understood that term " longitudinal direction ", " horizontal ", " on ", D score, " front ",
" afterwards ", the orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " be based on
Orientation shown in the drawings or position relationship, are for only for ease of description this utility model, rather than indicate or imply the dress of indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this utility model
Restriction.
Ultimate principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (3)
1. a kind of antenna structure for 4900-5800MHz frequency communications, including reflected bottom plate (1), metal transmission line (2) and
Sheet metal (3), sheet metal (3) are fixedly connected with reflected bottom plate (1), and metal biography is provided between sheet metal (3) and reflected bottom plate (1)
Defeated line (2), it is characterised in that:The left end of reflected bottom plate (1) top surface is fixedly connected with the first bonding jumper (4), the first metal
Bar (4) and the first metallic plate (5) chain connection, the right-hand member of reflected bottom plate (1) top surface are fixedly connected with the second bonding jumper (6), the
Two bonding jumpers (6) and the second metallic plate (7) chain connection, the first metallic plate (5) is fixed with the bottom surface of the second metallic plate (7) to be connected
Be connected to the 3rd bonding jumper (8), the bottom surface of the 3rd bonding jumper (8) is fixedly connected with the first rubber strip (9), the first rubber strip (9) with
The top surface of reflected bottom plate (1) contacts, and the first metallic plate (5) is provided with some first manholes with the second metallic plate (7)
(10) glass plate (11), the first metallic plate (5) and the second metallic plate (7), are fixedly connected with inside the first manhole (10)
Top surface has been fixedly connected with some first radiating fins (12), the first radiating fin (12) by the second radiating fin (13) successively
Join end to end, the top surface of the first metallic plate (5) is provided with tapped blind hole (14), the top surface of the second metallic plate (7) is fixedly connected limited
Bit slice (15), banking stop (15) are provided with the tapped through hole (16) corresponding with tapped blind hole (14), and banking stop (15) is by bolt
(17) it is fixedly connected with the first metallic plate (5), the top surface of reflected bottom plate (1) is fixedly connected with metal support block (18), the first gold medal
The side that the equal chain connection in side of category plate (5) and the second metallic plate (7) has metal support bar (19), reflected bottom plate (1) is fixed
It is connected with cylindrical metal block (20), metal support bar (19) and cylindrical metal block (20) snapping.
2. the antenna structure for 4900-5800MHz frequency communications according to claim 1, it is characterised in that:Described
One radiating fin (12) is provided with some second manholes (21).
3. the antenna structure for 4900-5800MHz frequency communications according to claim 1, it is characterised in that:The gold
The top surface of category support block (18) is fixedly connected with rubber blanket (22), rubber blanket (22) respectively with the first metallic plate (5) and the second gold medal
The bottom surface contact connection of category plate (7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621108187.8U CN206059619U (en) | 2016-10-10 | 2016-10-10 | A kind of antenna structure for 4900 5800MHz frequency communications |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621108187.8U CN206059619U (en) | 2016-10-10 | 2016-10-10 | A kind of antenna structure for 4900 5800MHz frequency communications |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206059619U true CN206059619U (en) | 2017-03-29 |
Family
ID=58363701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201621108187.8U Expired - Fee Related CN206059619U (en) | 2016-10-10 | 2016-10-10 | A kind of antenna structure for 4900 5800MHz frequency communications |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206059619U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021127992A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Heat dissipation structure of antenna and antenna assembly |
-
2016
- 2016-10-10 CN CN201621108187.8U patent/CN206059619U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021127992A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Heat dissipation structure of antenna and antenna assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206059619U (en) | A kind of antenna structure for 4900 5800MHz frequency communications | |
CN201406942Y (en) | Steel-plastic door and window connected by corner pieces | |
CN207159847U (en) | A kind of noise elimination noise reduction wind shutter | |
CN1983677A (en) | Extreme ear structure of flexible-packed battery | |
CN209119615U (en) | A kind of novel assembled transformer box shell | |
CN221885090U (en) | Ceramic package type digital isolator | |
CN208564300U (en) | A kind of bridge cut-off sectional material connection structure | |
CN204315705U (en) | Antenna and security device | |
CN209312984U (en) | It is a kind of convenient for vehicle-mounted communication antenna | |
CN211655292U (en) | Fixing device is used in antenna production | |
CN207063844U (en) | A kind of die-casting door/window corner brace | |
CN208539091U (en) | A kind of cable mounting structure and the oscillator with the mounting structure | |
CN204947359U (en) | A kind of double blank-holding formula outdoor rainproof top cover | |
CN210123975U (en) | Data transmission device with outdoor waterproof function | |
CN107907862A (en) | A kind of master control extension of vehicle-mounted array radar | |
CN105993696B (en) | Greenhouse plastic-steel section bar and application method | |
CN211128389U (en) | High-frequency transmission type communication circuit board | |
CN218062126U (en) | Wind-proof whistle structure of aluminum alloy window | |
CN209133279U (en) | A kind of novel automobile terminal resistance | |
CN211476679U (en) | Assembled tunnel roasting kiln wall sealing layer structure | |
CN215933811U (en) | Novel broadband self-supporting tower type medium wave transmitting antenna | |
CN206022591U (en) | A kind of improved cylindrical antenna | |
CN219267683U (en) | LED copper aluminum substrate quick dam structure | |
CN201145512Y (en) | Integral fin head of heat radiator made by steel | |
CN206916983U (en) | A kind of transparent sound insulation abatvoix |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20171010 |