CN209111964U - A kind of autopatching charging pile - Google Patents
A kind of autopatching charging pile Download PDFInfo
- Publication number
- CN209111964U CN209111964U CN201821674948.5U CN201821674948U CN209111964U CN 209111964 U CN209111964 U CN 209111964U CN 201821674948 U CN201821674948 U CN 201821674948U CN 209111964 U CN209111964 U CN 209111964U
- Authority
- CN
- China
- Prior art keywords
- charging
- crossbeam
- guide rail
- pile body
- rotating mechanism
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The utility model discloses a kind of autopatching charging piles.It includes guide rail and can be along the charging unit that guide rail moves, charging unit includes pile body, pile body bottom is equipped with can be along the mobile mechanism that guide rail moves, pile body is equipped with the through-hole for running through pile body from front to back, charging arm is equipped in through-hole, the arm that charges includes crossbeam, electric pushrod, charging head and the first rotating mechanism, electric pushrod is arranged on crossbeam and is mutually perpendicular to crossbeam, the telescopic end of electric pushrod is arranged in first rotating mechanism, the rotation axis end of the first rotating mechanism is arranged in charging head, charging head is equipped with camera, the elevating mechanism for driving beam lifting and the second rotating mechanism for driving crossbeam to rotate are equipped in pile body.The utility model can voluntarily position the charging jack of electric car, automatically by the charging jack of charging head insertion electric car, realize that automatic charging brings great advantage to the user without human intervention.
Description
Technical field
The utility model relates to charging pile technical field more particularly to a kind of autopatching charging piles.
Background technique
The fuel charger of charging pile being functionally similar to inside gas station, can be fixed on ground or wall, be installed on public
It builds in (public building, market, Public Parking etc.) and residential area parking lot or charging station, it can be according to different voltage
Grade is that the electric car of various models charges.The input terminal of charging pile is directly connected to AC network, and output end, which is equipped with, to be filled
Dateline is used to charge for electric car.
When existing charging pile is that electric car charges, needs people to remove the charging head on charging pile, be inconjunction with charging cable
Together, the charging jack being inserted on electric car, need it is pure be accomplished manually operation, and charging pile is generally in outdoor, charging head with fill
Electric wire is dirtier, easily makes the body and clothing of operator dirty.
Summary of the invention
In order to solve the above-mentioned technical problem the utility model, provides a kind of autopatching charging pile, can voluntarily determine
The charging jack of position electric car realizes automatic charging automatically by the charging jack of charging head insertion electric car, without artificial
Operation, brings great advantage to the user.
To solve the above-mentioned problems, the utility model is achieved using following technical scheme:
A kind of autopatching charging pile of the utility model, including guide rail and can be along the charging unit that guide rail moves, institute
Stating charging unit includes pile body, and the pile body bottom, which is equipped with, to be equipped in the past along the mobile mechanism that guide rail moves, the pile body
Be equipped with charging arm to the rear through-hole through pile body, in the through-hole, the charging arm include crossbeam, electric pushrod, charging head and
First rotating mechanism, the crossbeam are parallel to each other with guide rail, and the electric pushrod is arranged on crossbeam and is mutually perpendicular to crossbeam,
The telescopic end of electric pushrod is arranged in first rotating mechanism, and the rotation axis of first rotating mechanism is perpendicular to crossbeam and electricity
The rotation axis end of the first rotating mechanism is arranged in the plane that dynamic push rod is constituted, the charging head, and the charging head is equipped with and takes the photograph
The elevating mechanism for driving beam lifting and the second rotating machine for driving crossbeam to rotate are equipped with as head, in the pile body
Structure.
In the technical scheme, mobile mechanism is used to adjust the left-right position of charging arm, and elevating mechanism is for adjusting charging
The height of arm, the second rotating mechanism are used to adjust the direction of charging arm, and electric pushrod is for charging head along charging arm setting direction
It is moved forward and backward, the first rotating mechanism is for adjusting charging head left-right rotation on charging arm.
When charging pile works, camera acquires electric automobile image and positions charging jack position, passes through mobile mechanism, lifting
The mutual cooperation campaign of mechanism, the first rotating mechanism, the second rotating mechanism, electric pushrod realizes charging head in five freedom degrees
Movement is finally completed the movement of insertion charging jack, charges to electric car.Since charging head can be transported in five freedom degrees
It is dynamic, when occur car stop it is askew, stop down, do not stop in place and the case where charging jack position height changes with different automobile types
When, this charging pile can complete the movement of charging head insertion electric car charging jack.
Preferably, first rotating mechanism includes motor set and first servo motor, the motor set is pushed away with electronic
The telescopic end of bar is fixedly connected, and the first servo motor is arranged in motor set, and the charging head and motor set are hinged, described
First servo motor is for driving charging head to rotate.
Preferably, the electric pushrod is fixedly connected by connector with crossbeam.
Preferably, the electric pushrod end is fixedly connected with connector, the connector and crossbeam are keyed.
Preferably, the left and right sides is equipped with cavity in the pile body, the through-hole left and right sidewall is respectively equipped with to be connected with cavity
Logical strip-shaped hole, the elevating mechanism include the lifting structure being arranged in cavity, and the lifting structure includes ball-screw, matches
Fit and driving ball screw turns the second servo motors, the ligand is fixedly connected with the nut of ball-screw, described
Crossbeam both ends are each passed through ipsilateral strip-shaped hole and corresponding ligand is hinged.
Second servo motor drives ball screw rotation, on ligand is made with suitable/turning anticlockwise of ball-screw
Lower linear motion drives charging arm lifting.
Preferably, second rotating mechanism is arranged on the ligand on right side, second rotating mechanism includes driving
Dynamic motor, the drive bevel gear being arranged in driving motor shaft and the driven wheel of differential that crossbeam right end is set, the active
Bevel gear engages with driven wheel of differential.
Driving motor drives drive bevel gear rotation, and drive bevel gear drives driven wheel of differential rotation, to drive crossbeam
Rotation drives charging arm to rotate vertically.
Preferably, being equipped with radiator fan in the cavity.
Preferably, the pile body bottom is equipped with the groove with guide rail, the pile body is set in guide rail by groove
On, the guide rail top surface is equipped with the rack gear of trend identical as guide rail, is equipped with the gear being engaged with rack and drive in the pile body
The driving mechanism of moving gear rotation.
Driving mechanism driving gear rotates on rack gear, realizes moving horizontally for charging unit.
Preferably, the driving mechanism includes motor and gear drive.Motor is driven by gear drive
Gear rotation.
Preferably, being additionally provided with the protection belt being parallel to each other with guide rail above the guide rail, the protection belt runs through
Pile body.Pile body on guide rail when moving, pile body sliding opposite with protection belt.
The beneficial effects of the utility model are: the charging jack of electric car can be positioned voluntarily, charging head is inserted automatically
Enter the charging jack of electric car, realizes that automatic charging brings great advantage to the user without human intervention.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment;
Fig. 2 is the schematic diagram of internal structure of embodiment;
Fig. 3 is the structural schematic diagram of the main component of embodiment;
Fig. 4 is the structural schematic diagram of the first rotating mechanism;
Fig. 5 is the structural schematic diagram of the second rotating mechanism.
In figure: 1, guide rail, 2, pile body, 3, through-hole, 4, charging arm, 5, crossbeam, 6, electric pushrod, 7, charging head, 8, first
Rotating mechanism, 9, camera, the 10, second rotating mechanism, 11, motor set, 12, first servo motor, 13, connector, 14, sky
Chamber, 15, strip-shaped hole, 16, ball-screw, 17, ligand, the 18, second servo motor, 19, nut, 20, driving motor, 21, master
Dynamic bevel gear, 22, driven wheel of differential, 23, radiator fan, 24, rack gear, 25, gear, 26, driving mechanism, 27, protection belt.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of autopatching charging pile of the present embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, including guide rail 1 and can
The charging unit moved along guide rail 1, charging unit include pile body 2, and 2 bottom of pile body is equipped with the mobile mechanism that can be moved along guide rail 1,
Pile body 2 is equipped with the through-hole 3 for running through pile body from front to back, is equipped with charging arm 4 in through-hole 3, and charging arm 4 includes crossbeam 5, electronic pushes away
Bar 6, charging head 7 and the first rotating mechanism 8, crossbeam 5 are parallel to each other with guide rail 1, and electric pushrod 6 passes through connector 13 and crossbeam 5
It is fixedly connected with (electric pushrod end is fixedly connected with connector, and connector and crossbeam are keyed), electric pushrod 6 and 5 phase of crossbeam
Mutually vertical, the telescopic end of electric pushrod 6 is arranged in the first rotating mechanism 8, and the rotation axis of the first rotating mechanism 8 is perpendicular to crossbeam 5
The plane (rotation direction of charging head is made to be parallel to the plane that crossbeam and electric pushrod are constituted) constituted with electric pushrod 6, charging
First 7 are arranged in the rotation axis end of the first rotating mechanism 8, and charging head 7 is equipped with camera 9, is equipped in pile body 2 for driving cross
The elevating mechanism that beam 5 is gone up and down and the second rotating mechanism 10 for driving crossbeam 5 to rotate.
The left and right sides is equipped with cavity 14 in pile body 2, and 3 left and right sidewall of through-hole is respectively equipped with the strip-shaped hole being connected to cavity 14
15, elevating mechanism includes the lifting structure being symmetricly set in two cavitys 14, and lifting structure includes ball-screw 16, ligand
17 the second servo motors 18 rotated with driving ball-screw 16, ligand 17 are fixedly connected with the nut 19 of ball-screw 16,
5 both ends of crossbeam are each passed through ipsilateral strip-shaped hole 15 and corresponding ligand 17 is hinged.Second servo motor drives ball screw
Rotation, ligand are moved up and down linearly with suitable/turning anticlockwise of ball-screw, drive charging arm lifting.
2 bottom of pile body, which is equipped with, to be set on guide rail 1 with the matched groove of guide rail 1, pile body 2 by groove, and 1 top surface of guide rail is set
There is a rack gear 24 of trend identical as guide rail 1, is equipped in pile body 2 and rotates with 24 meshed gears 25 of rack gear and driving gear 25
Driving mechanism 26, the protection belt 27 being parallel to each other with guide rail 1 is additionally provided with above guide rail 1, and protection belt 27 runs through pile body 2.It drives
Motivation structure includes motor and gear drive, and motor is rotated on rack gear by the rotation of gear drive sliding tooth wheel, real
Existing charging unit moves horizontally.Pile body on guide rail when moving, pile body sliding opposite with protection belt.
As shown in figure 4, the first rotating mechanism 8 includes motor set 11 and first servo motor 12, motor set 11 is pushed away with electronic
The telescopic end of bar 6 is fixedly connected, and first servo motor 12 is arranged in motor set 11, and charging head 7 and motor set 11 are hinged, and first
Servo motor 12 is for driving charging head 7 to rotate.
As shown in figure 5, the second rotating mechanism 10 is arranged on the ligand 17 on right side, the second rotating mechanism 10 includes driving
Motor 20, the drive bevel gear 21 being arranged in 20 shaft of driving motor and the driven wheel of differential 22 that 5 right end of crossbeam is set, it is main
Dynamic bevel gear 21 is engaged with driven wheel of differential 22.Driving motor drives drive bevel gear rotation, and drive bevel gear drives from mantle
Gear rotation drives charging arm to rotate vertically so that crossbeam be driven to rotate.
Radiator fan 23 is equipped in cavity 14.The arm 4 that charges further includes the shell for wrapping electric pushrod 6 and crossbeam 5.
In the present solution, mobile mechanism is used to adjust the left-right position of charging arm, elevating mechanism is used to adjust the height of charging arm
Degree, the second rotating mechanism are used to adjust the direction of charging arm, and electric pushrod moves before and after charging arm setting direction for charging head
Dynamic, the first rotating mechanism is for adjusting charging head left-right rotation on charging arm.
When charging pile works, camera acquires electric automobile image and positions charging jack position, passes through mobile mechanism, lifting
The mutual cooperation campaign of mechanism, the first rotating mechanism, the second rotating mechanism, electric pushrod realizes charging head in five freedom degrees
Movement is finally completed the movement of insertion charging jack, charges to electric car.Since charging head can be transported in five freedom degrees
It is dynamic, when occur car stop it is askew, stop down, do not stop in place and the case where charging jack position height changes with different automobile types
When, this charging pile can complete the movement of charging head insertion electric car charging jack.Controller can be set on charging pile
All parts work is controlled, can also be worked under the control of external control devices.
Claims (10)
1. a kind of autopatching charging pile, which is characterized in that including guide rail (1) and can be mobile along guide rail (1) charging unit,
The charging unit includes pile body (2), and pile body (2) bottom is equipped with mobile mechanism that can be mobile along guide rail (1), the pile body
(2) it is equipped with the through-hole (3) for running through pile body from front to back, charging arm (4), charging arm (4) packet are equipped in the through-hole (3)
Crossbeam (5), electric pushrod (6), charging head (7) and the first rotating mechanism (8) are included, the crossbeam (5) and guide rail (1) are mutually flat
Row, the electric pushrod (6) are arranged on crossbeam (5) and are mutually perpendicular to crossbeam (5), the first rotating mechanism (8) setting
Telescopic end in electric pushrod (6), the rotation axis of first rotating mechanism (8) is perpendicular to crossbeam (5) and electric pushrod (6) structure
At plane, the charging head (7) setting is equipped with and takes the photograph in the rotation axis end of the first rotating mechanism (8), the charging head (7)
The elevating mechanism for driving crossbeam (5) to go up and down is equipped with as head (9), in the pile body (2) and for driving crossbeam (5) rotation
Second rotating mechanism (10).
2. a kind of autopatching charging pile according to claim 1, which is characterized in that the first rotating mechanism (8) packet
Motor set (11) and first servo motor (12) are included, the motor set (11) is fixedly connected with the telescopic end of electric pushrod (6), institute
First servo motor (12) setting is stated in motor set (11), hingedly, described first watches for the charging head (7) and motor set (11)
Motor (12) are taken for driving charging head (7) to rotate.
3. a kind of autopatching charging pile according to claim 1, which is characterized in that the electric pushrod (6) passes through company
Junctor (13) is fixedly connected with crossbeam (5).
4. a kind of autopatching charging pile according to claim 3, which is characterized in that electric pushrod (6) end with
Connector (13) is fixedly connected, and the connector (13) and crossbeam (5) are keyed.
5. a kind of autopatching charging pile according to claim 1 or 2 or 3 or 4, which is characterized in that in the pile body (2)
The left and right sides is equipped with cavity (14), and through-hole (3) left and right sidewall is respectively equipped with the strip-shaped hole (15) being connected to cavity (14), institute
Stating elevating mechanism includes the lifting structure being arranged in cavity (14), and the lifting structure includes ball-screw (16), ligand
(17) and driving ball-screw (16) rotation the second servo motor (18), the spiral shell of the ligand (17) and ball-screw (16)
Female (19) are fixedly connected, and it is hinged with corresponding ligand (17) that crossbeam (5) both ends are each passed through ipsilateral strip-shaped hole (15).
6. a kind of autopatching charging pile according to claim 5, which is characterized in that second rotating mechanism (10) sets
It sets on the ligand (17) on right side, second rotating mechanism (10) includes driving motor (20), is arranged in driving motor
(20) driven wheel of differential (22) of the drive bevel gear in shaft (21) and setting in crossbeam (5) right end, the drive bevel gear
(21) it is engaged with driven wheel of differential (22).
7. a kind of autopatching charging pile according to claim 5, which is characterized in that be equipped with heat dissipation in the cavity (14)
Fan (23).
8. a kind of autopatching charging pile according to claim 1 or 2 or 3 or 4, which is characterized in that pile body (2) bottom
Portion, which is equipped with, to be set on guide rail (1) with guide rail (1) matched groove, the pile body (2) by groove, guide rail (1) top surface
Rack gear (24) equipped with trend identical as guide rail (1), be equipped in the pile body (2) with rack gear (24) meshed gears (25) and
Drive the driving mechanism (26) of gear (25) rotation.
9. a kind of autopatching charging pile according to claim 8, which is characterized in that the driving mechanism (26) includes electricity
Machine and gear drive.
10. a kind of autopatching charging pile according to claim 1 or 2 or 3 or 4, which is characterized in that the guide rail (1)
Top is additionally provided with the protection belt (27) being parallel to each other with guide rail (1), and the protection belt (27) runs through pile body (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821674948.5U CN209111964U (en) | 2018-10-16 | 2018-10-16 | A kind of autopatching charging pile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821674948.5U CN209111964U (en) | 2018-10-16 | 2018-10-16 | A kind of autopatching charging pile |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209111964U true CN209111964U (en) | 2019-07-16 |
Family
ID=67201077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821674948.5U Expired - Fee Related CN209111964U (en) | 2018-10-16 | 2018-10-16 | A kind of autopatching charging pile |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209111964U (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110641311A (en) * | 2019-08-26 | 2020-01-03 | 莆田市骏坤商贸有限公司 | Intelligent charging stake of grafting power optimization based on all-round scanning location |
CN110884377A (en) * | 2019-12-12 | 2020-03-17 | 苍南国博新能源科技有限公司 | Domestic adjustable automatic charging pile |
CN111645625A (en) * | 2020-06-10 | 2020-09-11 | 李知音 | Device for preventing vehicle from blowing and rushing away |
CN111959313A (en) * | 2020-07-20 | 2020-11-20 | 杭州电子科技大学 | Mobile charging pile robot and charging method thereof |
CN112356722A (en) * | 2020-11-16 | 2021-02-12 | 湖南京能新能源科技有限公司 | Device and method for automatically positioning vehicle interface and connecting |
CN112895957A (en) * | 2021-02-08 | 2021-06-04 | 北京理工大学 | Automatic charging device for household electric automobile |
-
2018
- 2018-10-16 CN CN201821674948.5U patent/CN209111964U/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110641311A (en) * | 2019-08-26 | 2020-01-03 | 莆田市骏坤商贸有限公司 | Intelligent charging stake of grafting power optimization based on all-round scanning location |
CN110884377A (en) * | 2019-12-12 | 2020-03-17 | 苍南国博新能源科技有限公司 | Domestic adjustable automatic charging pile |
CN110884377B (en) * | 2019-12-12 | 2020-11-17 | 温州英杰工艺品有限公司 | Domestic adjustable automatic charging pile |
CN111645625A (en) * | 2020-06-10 | 2020-09-11 | 李知音 | Device for preventing vehicle from blowing and rushing away |
CN111645625B (en) * | 2020-06-10 | 2021-08-10 | 李知音 | Device for preventing vehicle from blowing and rushing away |
CN111959313A (en) * | 2020-07-20 | 2020-11-20 | 杭州电子科技大学 | Mobile charging pile robot and charging method thereof |
CN112356722A (en) * | 2020-11-16 | 2021-02-12 | 湖南京能新能源科技有限公司 | Device and method for automatically positioning vehicle interface and connecting |
CN112895957A (en) * | 2021-02-08 | 2021-06-04 | 北京理工大学 | Automatic charging device for household electric automobile |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN209111964U (en) | A kind of autopatching charging pile | |
CN209111965U (en) | A kind of electric car intelligent charging spot | |
CN103241111B (en) | A kind of car bottom side is changed the battery-driven car of battery to interlock and is taken the device of battery | |
CN106185730A (en) | A kind of floor truck of all-around mobile | |
CN203237020U (en) | Electric vehicle with battery replaced in vehicle bottom continuous move mode and device for replacing battery thereof | |
CN107873549A (en) | A kind of feeding slot for facilitating the different ox of body size to feed | |
CN206217655U (en) | A kind of charger for automobile device people | |
CN109228936B (en) | Intelligent automatic charging pile | |
CN208665144U (en) | A kind of new-energy automobile being conveniently replaceable savings battery | |
CN112319287B (en) | Automatic plug-in new energy automobile fills electric pile | |
CN108661349B (en) | New energy automobile bus stop board | |
CN209208523U (en) | A kind of intelligence automatic charging stake | |
CN108248426A (en) | A kind of electric vehicle photovoltaic charge station | |
CN115196034A (en) | Unmanned aerial vehicle machine nest in wisdom agricultural experimental plot | |
CN214480807U (en) | Novel three-dimensional numerical control track shooting device for movie animation | |
CN112172563B (en) | Be used for new energy automobile charging wire positioner | |
CN213840198U (en) | Four-dimensional motion camera shooting mechanical device | |
CN208328758U (en) | A kind of buried jam plate | |
CN209335584U (en) | A kind of adjustable electron element and component production labor make platform | |
CN206216692U (en) | Using the three direction displacement mechanism of movable rail structure on a kind of charger for automobile device people | |
CN212633507U (en) | Direct transmission mechanism of direct current speed reduction motor of automobile wireless charger | |
CN110154806A (en) | A kind of outdoor environmental protection charging pile easy to use | |
CN209104888U (en) | Multistage automatic telescopic stores photovoltaic charged machine | |
CN218316326U (en) | Automatic plug-in charging device for intelligent mechanical garage | |
CN214663110U (en) | Building engineering management bid inviting device |
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: 20190716 Termination date: 20211016 |