CN108457250A - A kind of hydraulic pressure dam based on block locking - Google Patents
A kind of hydraulic pressure dam based on block locking Download PDFInfo
- Publication number
- CN108457250A CN108457250A CN201711389550.7A CN201711389550A CN108457250A CN 108457250 A CN108457250 A CN 108457250A CN 201711389550 A CN201711389550 A CN 201711389550A CN 108457250 A CN108457250 A CN 108457250A
- Authority
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- China
- Prior art keywords
- block
- telescopic rod
- hydraulic telescopic
- length
- substrate
- 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.)
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Links
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/36—Elevating mechanisms for vertical-lift gates
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of hydraulic pressure dams based on block locking, including controller, the first substrate, the second substrate, vertical baffle, dam body, the first hydraulic telescopic rod, the second hydraulic telescopic rod, supporting block and block, the bottom end of dam body is hinged with second substrate, the top of first hydraulic telescopic rod is hinged with the dam body, the bottom end of first hydraulic telescopic rod is hinged with first substrate, dam body side is fixed with abutting plate, and the other side is fixed with abutting block；The upper surface of first substrate is fixed with fixed block, one end of second hydraulic telescopic rod is fixed with the fixed block, the other end of second hydraulic telescopic rod is fixed with the block, and the second hydraulic telescopic rod can drive the block to slide, first substrate has vertical blind hole, and vertical blind hole is interior to be connected with supporting block by compressed spring.The hydraulic pressure dam of the present invention has locking structure, and dam body is more stablized, and has the function of operation indicating.
Description
Technical field
The present invention relates to hydraulic engineering fields, and in particular to a kind of hydraulic pressure dam based on block locking.
Background technology
Hydraulic pressure dam refers to hydraulic concrete lifting dam, is the more easy movable dam technology of water economic system.Its extensive use
In construction such as agricultural irrigation, fishery, ship lock, seawater gear tide, city river landscape engineering and small hydropower stations.Existing hydraulic pressure dam is logical
It is often that dam body is supported by hydraulic telescopic rod, to realize the lifting of dam body.But rely solely on hydraulic telescopic rod so that hydraulic pressure
The load of telescopic rod is higher, therefore corresponding locking structure would generally be arranged in usually hydraulic pressure dam.Although existing locking structure kind
Class is more, but is not met by whole needs.
Invention content
Goal of the invention：The present invention is directed to overcome the deficiencies of existing technologies, a kind of hydraulic pressure dam based on block locking is provided.
Technical solution：A kind of hydraulic pressure dam, including controller, the first substrate, the second substrate, vertical baffle, dam body, the first liquid
Pressure telescopic rod, the second hydraulic telescopic rod, supporting block and block, second substrate are fixed on the top of first substrate, institute
It states vertical baffle and is fixed on second upper surface of substrate, the vertical baffle is fixed with sealing in face of the side of the dam body
Pad, the bottom end of the dam body is hinged with second substrate, and the top of first hydraulic telescopic rod and the dam body are hinged, institute
The bottom end for stating the first hydraulic telescopic rod is hinged with first substrate, and the dam body is fixed in face of the side of the vertical baffle
Plate is abutted, the dam body is fixed with abutting block in face of the side of first hydraulic telescopic rod；The upper surface of first substrate
Be fixed with fixed block, one end and the fixed block of second hydraulic telescopic rod are fixed, second hydraulic telescopic rod it is another
One end is fixed with the block, and second hydraulic telescopic rod can drive the block to slide, the first substrate tool
There are vertical blind hole, the bottom end of the vertical blind hole and the bottom end of compressed spring to fix, the top of the compressed spring and the branch
Bracer is fixed, and the supporting block has the through-hole that can be inserted by the block；First hydraulic telescopic rod is at
One length and the second length, first length is the extreme length that the first hydraulic telescopic rod can extend, when first liquid
When pressure telescopic rod is in the first length, the abutting plate abuts the gasket, and the abutting plate is in horizontality；Work as institute
When stating the first hydraulic telescopic rod and being in the second length, the top for abutting block and abutting the supporting block；Second hydraulic pressure is stretched
Contracting bar is at third length and the 4th length, and when the second hydraulic telescopic rod is in third length, the block is located at institute
The top of vertical blind hole is stated, and passes through the through-hole, the block abuts the top of the through-hole, the bottom of the through-hole and institute
Stating has gap between the lower surface of block, the top for abutting block and abutting the supporting block；At the second hydraulic telescopic rod
When four length, the block does not block the opening of the vertical blind hole completely, and is not inserted into the through-hole completely.
Further, the width of the vertical plate is equal to the width of the dam body,
Further, the section for abutting block is isosceles trapezoid.
Further, when the first hydraulic telescopic rod is in the length of the first length and the second compression telescopic rod, to be in third long
When spending, the supporting block abuts the plane representated by a waist of the isosceles trapezoid for abutting block；When first liquid
When pressure telescopic rod is in the second length, the supporting block abuts flat representated by the top margin of isosceles trapezoid described in the abutting block
Face.
Further, the block is cuboid, and the supporting block is cuboid, and the through-hole is cuboid.
Further, further include wireless signal transmitting device, the both sides of vertical blind hole are respectively provided in first substrate
First level blind hole and the second horizontal blind hole are equipped with optical transmitting set, the second horizontal blind hole in the first level blind hole
Optical receiver is inside installed, first upper surface of substrate also has the vertical groove of opening upwards, is provided in the groove
The open end of light source portion and image collecting device, the first and second horizontal blind hole and the vertical groove is all closed transparent
There is identification to mark for the lower surface of cap, the block；When the length of the first hydraulic telescopic rod is in the first length and the second liquid
When pressure telescopic rod is in third length, the light of the optical transmitting set transmitting is received across the gap by the optical receiver, institute
The identification label can be collected by stating image collecting device；It is described when first hydraulic telescopic rod is in the second length
Optical receiver does not receive the optical signal of the optical transmitting set due to blocking for the supporting block；The controller is controlled,
When the optical receiver can receive the optical signal of the optical transmitting set, and described image harvester does not acquire the knowledge
When the duration not marked is more than setting duration, the wireless signal transmitting device transmitting alarm signal is controlled.
Further, the setting time is one minute.
Advantageous effect：The hydraulic pressure dam of the present invention is provided with block and supporting block, after dam body rise, can carry out locking,
To higher support dam body.And the position provided with corresponding Sensor monitoring block and supporting block carries out operator
It reminds, avoids the maloperation of operator.
Description of the drawings
Fig. 1 is that the first hydraulic telescopic rod is in the first length, and schematic diagram when the second hydraulic telescopic rod is in third length；
Fig. 2 is that the first hydraulic telescopic rod is in the second length, and schematic diagram when the second hydraulic telescopic rod is in four length；
Fig. 3 is the partial enlarged view of Fig. 1.
Specific implementation mode
Reference numeral：1.1 first substrates；1.2 second substrates；1.3 vertical baffle；1.3.1 gasket；2 dam bodys；2.1 supporting
Connect block；2.2 abut plate；3 first hydraulic telescopic rods；4 fixed blocks；5 second hydraulic telescopic rods；6 blocks；6.1 identification labels；7
Bracer；7.1 through-hole；8 compressed springs；1.1.1 vertical blind hole；13 vertical grooves；13.2 image collecting devices；13.3 light source portion；
11 first level blind holes；11.2 optical transmitting sets；12 second horizontal blind holes；12.2 optical receivers；11.1,12.1,13.1 cap.
A kind of hydraulic pressure dam, including controller, the first substrate 1.1, the second substrate 1.2, vertical baffle 1.3, dam body 2, first
Hydraulic telescopic rod 3, the second hydraulic telescopic rod 5, supporting block 7 and block 6, second substrate are fixed on the upper of first substrate
Side, the vertical baffle 1.3 are fixed on second upper surface of substrate, and the vertical baffle is fixed in face of the side of the dam body
Have a gasket 1.3.1, the bottom end of the dam body is hinged with second substrate, the top of first hydraulic telescopic rod with it is described
Dam body is hinged, and the bottom end of first hydraulic telescopic rod is hinged with first substrate, and the dam body faces the vertical baffle
Side be fixed with abutting plate, the dam body is fixed in face of the side of first hydraulic telescopic rod and abuts block 2.2；Described
The upper surface of one substrate is fixed with fixed block 4, and one end and the fixed block of second hydraulic telescopic rod 5 are fixed, and described
The other end of two hydraulic telescopic rods is fixed with the block 6, and second hydraulic telescopic rod can drive the block 6 to slide
Dynamic, first substrate has vertical blind hole 1.1.1, the bottom end of the vertical blind hole 1.1.1 solid with the bottom end of compressed spring 8
Fixed, the top of the compressed spring is fixed with the supporting block, and the supporting block has the through-hole that can be inserted by the block
7.1；First hydraulic telescopic rod is at the first length and the second length, and first length is the first hydraulic telescopic rod
The extreme length that can be extended, when first hydraulic telescopic rod is in the first length, the abutting plate abuts the sealing
Pad, and the abutting plate is in horizontality；When first hydraulic telescopic rod is in the second length, the abutting block abuts
The top of the supporting block；Second hydraulic telescopic rod is at third length and the 4th length, when the second hydraulically extensible
When bar is in third length, the block is located at the top of the vertical blind hole, and passes through the through-hole, and the block abuts institute
The top of through-hole is stated, there is gap between the bottom of the through-hole and the lower surface of the block, described in abuttings block abutting
The top of supporting block；When the second hydraulic telescopic rod is in four length, the block does not block the vertical blind hole completely
Opening, and it is not inserted into the through-hole completely.The width of the vertical plate is equal to the width of the dam body, the section for abutting block
For isosceles trapezoid.When the first hydraulic telescopic rod is in the first length and the second length for compressing telescopic rod is in third length,
The supporting block abuts the plane representated by a waist of the isosceles trapezoid for abutting block；When first hydraulically extensible
When bar is in the second length, the supporting block abuts the plane representated by the top margin of isosceles trapezoid described in the abutting block.Institute
It is cuboid to state block, and the supporting block is cuboid, and the through-hole is cuboid.It further include wireless signal transmission dress
It sets, the both sides of vertical blind hole are respectively provided with first level blind hole and the second horizontal blind hole, first water in first substrate
Optical transmitting set is installed in flat blind hole, optical receiver is installed, first upper surface of substrate is also in the second horizontal blind hole
Vertical groove with opening upwards is provided with light source portion and image collecting device in the groove, and described first and second is horizontal blind
Hole and the open end of the vertical groove are all closed transparent cap, and there is identification to mark for the lower surface of the block；When
The length of one hydraulic telescopic rod is in the first length and when the second hydraulic telescopic rod is in third length, the optical transmitting set transmitting
Light received by the optical receiver across the gap, described image harvester can collect identification label；When
When first hydraulic telescopic rod is in the second length, the optical receiver due to the supporting block block do not receive it is described
The optical signal of optical transmitting set；The controller is controlled, when the optical receiver can receive the light of the optical transmitting set
Signal, and when described image harvester does not acquire duration of the identification label and is more than setting duration, described in control
Wireless signal transmitting device emits alarm signal.The setting time is one minute.
As shown in Figure 1, the first hydraulic telescopic rod is in the first length, the second hydraulic telescopic rod is in third length, to
It abuts block and abuts supporting block, the via top of supporting block abuts block, to further increase the support force of dam body, increases dam body
Stability.As shown in Fig. 2, when needing to put down hydraulic pressure dam, the second hydraulic telescopic rod foreshortens to the 4th length, and the first hydraulic pressure is stretched
Contracting bar foreshortens to the second length.
The usual process that hydraulic pressure dam switches to state shown in FIG. 1 from state shown in Fig. 2 is：Operator's operation makes first
Hydraulic telescopic rod is from the second length elongation to the first length (in elongation process, the second hydraulically extensible pole length is constant), when
When one hydraulic telescopic rod has been changed to the first length, operator's operation makes the second hydraulic telescopic rod from the 4th length elongation to third
Length, to complete switching of Fig. 2 states to Fig. 1 states；In the second hydraulic telescopic rod from the 4th length elongation to third length
During, optical receiver can receive the optical signal of optical transmitting set, but there is a period of time, image acquisition device
It is marked less than identification, but this period will not be very long, mainly the second hydraulic telescopic rod is that third is long from the 4th length transition
The conversion duration of degree, along with operator's operation reaction duration (when referring to the first hydraulic telescopic rod and reaching the first length, until
Operator starts to start the reaction duration of the second hydraulic telescopic rod)；If image collecting device does not acquire identification mark for a long time
Note (such as surpassing after one minute), then explanation is likely to operator and is extended to the first length by the first hydraulic telescopic rod,
It has forgotten and operates the second hydraulic telescopic rod to third length.In this case remote alarm signal is sent in time to control room
In, remind operator to carry out carrying out corresponding operating to the second hydraulic telescopic rod in time.
Although the present invention is illustrated and has been described with regard to preferred embodiment, it is understood by those skilled in the art that
Without departing from scope defined by the claims of the present invention, variations and modifications can be carried out to the present invention.
Claims (7)
1. a kind of hydraulic pressure dam based on block locking, which is characterized in that including controller, the first substrate, the second substrate, vertical gear
Plate, dam body, the first hydraulic telescopic rod, the second hydraulic telescopic rod, supporting block and block, second substrate are fixed on described first
The top of substrate, the vertical baffle are fixed on second upper surface of substrate, and the vertical baffle faces the side of the dam body
Face is fixed with gasket, and the bottom end of the dam body is hinged with second substrate, the top of first hydraulic telescopic rod and institute
It is hinged to state dam body, the bottom end of first hydraulic telescopic rod is hinged with first substrate, and the dam body faces the vertical gear
The side of plate is fixed with abutting plate, and the dam body is fixed with abutting block in face of the side of first hydraulic telescopic rod；Described
The upper surface of one substrate is fixed with fixed block, and one end and the fixed block of second hydraulic telescopic rod are fixed, and described second
The other end of hydraulic telescopic rod is fixed with the block, and second hydraulic telescopic rod can drive the block to slide,
There is first substrate vertical blind hole, the bottom end of the vertical blind hole and the bottom end of compressed spring to fix, the compressed spring
Top fixed with the supporting block, the supporting block has the through-hole that can be inserted by the block；First hydraulic pressure is stretched
Contracting bar is at the first length and the second length, and first length is that the longest that the first hydraulic telescopic rod can extend is long
Degree, when first hydraulic telescopic rod is in the first length, the abutting plate abuts the gasket, and at the abutting plate
In horizontality；When first hydraulic telescopic rod is in the second length, the top for abutting block and abutting the supporting block；
Second hydraulic telescopic rod is at third length and the 4th length, when the first hydraulic telescopic rod is in the first length and
When two hydraulic telescopic rods are in third length, the block is located at the top of the vertical blind hole, and passes through the through-hole, described
Block abuts the top of the through-hole, has gap, the abutting between the bottom of the through-hole and the lower surface of the block
Block abuts the top of the supporting block；When the second hydraulic telescopic rod is in four length, the block does not block described completely
The opening of vertical blind hole, and it is not inserted into the through-hole completely.
2. the hydraulic pressure dam according to claim 1 based on block locking, which is characterized in that the width of the vertical plate is equal to
The width of the dam body.
3. the hydraulic pressure dam according to claim 1 based on block locking, which is characterized in that it is described abut block section be etc.
Waist is trapezoidal.
4. the hydraulic pressure dam according to claim 1 based on block locking, which is characterized in that when the first hydraulic telescopic rod is in
The first length and length of the second compression telescopic rod is when be in third length, the supporting block abut the described etc. of the abutting block
Plane representated by a trapezoidal waist of waist；When first hydraulic telescopic rod is in the second length, the supporting block abuts
Plane representated by the top margin of isosceles trapezoid described in the abutting block.
5. the hydraulic pressure dam according to claim 1 based on block locking, which is characterized in that the block is cuboid,
The supporting block is cuboid, and the through-hole is cuboid.
6. the hydraulic pressure dam according to claim 1 based on block locking, which is characterized in that further include wireless signal transmission dress
It sets, the both sides of vertical blind hole are respectively provided with first level blind hole and the second horizontal blind hole, first water in first substrate
Optical transmitting set is installed in flat blind hole, optical receiver is installed, first upper surface of substrate is also in the second horizontal blind hole
Vertical groove with opening upwards is provided with light source portion and image collecting device in the groove, and described first and second is horizontal blind
Hole and the open end of the vertical groove are all closed transparent cap, and there is identification to mark for the lower surface of the block；When
The length of one hydraulic telescopic rod is in the first length and when the second hydraulic telescopic rod is in third length, the optical transmitting set transmitting
Light received by the optical receiver across the gap, described image harvester can collect identification label；When
When first hydraulic telescopic rod is in the second length, the optical receiver due to the supporting block block do not receive it is described
The optical signal of optical transmitting set；The controller is controlled, when the optical receiver can receive the light of the optical transmitting set
Signal, and when described image harvester does not acquire duration of the identification label and is more than setting duration, described in control
Wireless signal transmitting device emits alarm signal.
7. the hydraulic pressure dam according to claim 6 based on block locking, which is characterized in that the setting time is one point
Clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389550.7A CN108457250B (en) | 2017-12-21 | 2017-12-21 | Hydraulic pressure dam based on dog locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389550.7A CN108457250B (en) | 2017-12-21 | 2017-12-21 | Hydraulic pressure dam based on dog locking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457250A true CN108457250A (en) | 2018-08-28 |
| CN108457250B CN108457250B (en) | 2020-03-13 |
Family
ID=63220372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711389550.7A Active CN108457250B (en) | 2017-12-21 | 2017-12-21 | Hydraulic pressure dam based on dog locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457250B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663569A (en) * | 2020-12-28 | 2021-04-16 | 安徽池州百川液压坝科技有限公司 | Unpowered unlocking device of hydraulic support locking mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202099789U (en) * | 2011-05-24 | 2012-01-04 | 浙江衢州河口闸门有限公司 | Fully-opened hydraulic control flap gate |
| CN205152906U (en) * | 2015-10-26 | 2016-04-13 | 安徽池州百川液压坝科技有限公司 | Automatic flood discharge hydraulic pressure dam |
| CN206693184U (en) * | 2017-04-19 | 2017-12-01 | 衢州市长河翻板闸门有限公司 | The locking device on hydraulic pressure dam |
-
2017
- 2017-12-21 CN CN201711389550.7A patent/CN108457250B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202099789U (en) * | 2011-05-24 | 2012-01-04 | 浙江衢州河口闸门有限公司 | Fully-opened hydraulic control flap gate |
| CN205152906U (en) * | 2015-10-26 | 2016-04-13 | 安徽池州百川液压坝科技有限公司 | Automatic flood discharge hydraulic pressure dam |
| CN206693184U (en) * | 2017-04-19 | 2017-12-01 | 衢州市长河翻板闸门有限公司 | The locking device on hydraulic pressure dam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663569A (en) * | 2020-12-28 | 2021-04-16 | 安徽池州百川液压坝科技有限公司 | Unpowered unlocking device of hydraulic support locking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108457250B (en) | 2020-03-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200220 Address after: 325608 no.428-15, Xinfeng Road, Hongqiao Town, Leqing City, Wenzhou City, Zhejiang Province Applicant after: Hu Haiming Address before: 225100 37 yuan 701, Vanke City, Pingshan Township, Hanjiang District, Yangzhou, Jiangsu Applicant before: Zhao Guixiang |
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| TA01 | Transfer of patent application right | ||
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 532399 No.46 Minsheng street, Taocheng Town, Daxin County, Laibin City, Guangxi Zhuang Autonomous Region Patentee after: Hu Haiming Address before: No. 428-15, Xinfeng Road, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province 325608 Patentee before: Hu Haiming |
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| CP02 | Change in the address of a patent holder |
Address after: 532399 No.46 Minsheng street, Taocheng Town, Daxin County, Chongzuo City, Guangxi Zhuang Autonomous Region Patentee after: Hu Haiming Address before: 532399 No.46 Minsheng street, Taocheng Town, Daxin County, Laibin City, Guangxi Zhuang Autonomous Region Patentee before: Hu Haiming |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 Address after: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee after: Li Qiannan Address before: 532399 No.46 Minsheng street, Taocheng Town, Daxin County, Chongzuo City, Guangxi Zhuang Autonomous Region Patentee before: Hu Haiming |
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Effective date of registration: 20210601 Address after: 250000 Li Shan Road, Lishan District, Ji'nan, Shandong Province, No. 127 Patentee after: SHANDONG WATER CONSERVANCY GROUP Co.,Ltd. Address before: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee before: Li Qiannan |
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| TR01 | Transfer of patent right |