CN205171466U - Welding bottom support on integral hinge dam - Google Patents
Welding bottom support on integral hinge dam Download PDFInfo
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- CN205171466U CN205171466U CN201521002324.5U CN201521002324U CN205171466U CN 205171466 U CN205171466 U CN 205171466U CN 201521002324 U CN201521002324 U CN 201521002324U CN 205171466 U CN205171466 U CN 205171466U
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- axle sleeve
- hydraulic cylinder
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- bottom support
- support bracket
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Abstract
The utility model relates to a hydraulic engineering field, especially, relate to a welding bottom support on integral hinge dam, comprising a base plate, two blocks of curb plates, the dam facing axle sleeve, two pneumatic cylinder axle sleeves and a plurality of pneumatic cylinder shaft liner connection board, two blocks of curb plates all weld in the upper surface of bottom plate perpendicularly side by side, weld with one of them curb plate respectively at the both ends of dam facing axle sleeve, two coaxial settings of pneumatic cylinder axle sleeve, and be parallel to each other with the dam facing axle sleeve, leave the clearance between two pneumatic cylinder axle sleeves, every pneumatic cylinder axle sleeve all with pneumatic cylinder shaft liner connection board welded fastening, the equal welded fastening of a plurality of pneumatic cylinder shaft liner connection boards is in the upper surface of bottom plate. The welding bottom support on integral hinge dam that this application provided can turn into the effort of dam facing and pneumatic cylinder the internal force of bottom support for shoring of foundation board and cement foundation no longer receive and tearing, thereby have improved basic connecting plate or cement foundation's life.
Description
Technical field
The application relates to hydraulic engineering field, particularly relates to a kind of welding bottom support bracket of monolithic hinge dam.
Background technology
In correlation technique, the dam facing on hinge dam is generally fixed on basic junction plate by a bottom support bracket, and the bottom of hydraulic cylinder is then fixed on basic junction plate by hydraulic cylinder bearing.Spacing between bottom support bracket and hydraulic cylinder bearing is comparatively large, makes hydraulic cylinder form timbering with rafter arch sets's structure to dam facing.
But the strength that river can be applied to hinge dam by this structure is dispersed on bottom support bracket and hydraulic cylinder bearing respectively, make the two form two opposite effect power to basic junction plate respectively, cause tearing basic junction plate and concrete pedestal.
If things go on like this, basic junction plate and concrete pedestal are likely torn, thus reduce application life.
Utility model content
This application provides a kind of welding bottom support bracket of monolithic hinge dam, the application life of basic junction plate and concrete pedestal can be extended.
The welding bottom support bracket on a kind of monolithic hinge dam that the application provides, comprises base plate, two pieces of side plates, dam facing axle sleeve, two hydraulic cylinder axle sleeves and multiple hydraulic cylinder axle sleeve junction plates,
Two pieces of equal tile verticallies of described side plate are welded in the upper surface of described base plate, the two ends of described dam facing axle sleeve respectively with plate-side plate welding described in one of them,
The coaxial setting of two described hydraulic cylinder axle sleeves, and be parallel to each other with described dam facing axle sleeve, gap is left between two described hydraulic cylinder axle sleeves, each described hydraulic cylinder axle sleeve is all welded and fixed with described hydraulic cylinder axle sleeve junction plate, and multiple described hydraulic cylinder axle sleeve junction plates are all fixedly welded on the upper surface of described base plate.
Preferably, also comprise multiple reinforcement gusset, multiple described reinforcement gussets are all arranged on the outside of two blocks of described side plates, and simultaneously perpendicular to described side plate and described base plate, described reinforcement gusset welds with described side plate and described base plate simultaneously.
Preferably, two described hydraulic cylinder axle sleeves are all arranged between two blocks of described side plates, described side plate comprises substrate and extension, relative to described base plate, the height of described substrate is higher than described hydraulic cylinder axle sleeve, the height of described extension is lower than described hydraulic cylinder axle sleeve, the substrate portion of described dam facing axle sleeve and two blocks of described side plates is welded and fixed, described extension then passes by below the axis of described hydraulic cylinder axle sleeve, and all described with at least one piece reinforcement gusset of described substrate and described extension welds.
Preferably, multiple described reinforcement gusset is symmetricly set on the outside of two blocks of described side plates.
Preferably, the shape of described reinforcement gusset is triangle.
Preferably, also comprise horizontal stiffener, described horizontal stiffener is arranged between two described side plates and described dam facing axle sleeve, and perpendicular to described side plate, described horizontal stiffener welds with two blocks of described side plates and described dam facing axle sleeve.
Preferably, described horizontal stiffener simultaneously with described side plate and described base plate perpendicular, and described horizontal stiffener all welds with base plate, two blocks of described side plates and described dam facing axle sleeve.
Preferably,
The top of described side plate is provided with the first breach, and the bottom of described dam facing axle sleeve embeds in described first breach;
And/or
The top of described hydraulic cylinder axle sleeve junction plate is provided with the second breach, and the bottom of described hydraulic cylinder axle sleeve embeds in described second breach.
Preferably, the inside of described hydraulic cylinder axle sleeve junction plate is provided with void region.
Preferably, also comprise back-up ring and sealing ring, described sealing ring and described back-up ring are set in the two ends of described dam facing axle sleeve successively.
The technical scheme that the application provides can reach following beneficial effect:
The welding bottom support bracket on the monolithic hinge dam that the application provides is by arranging dam facing axle sleeve and hydraulic cylinder axle sleeve, dam facing and hydraulic cylinder can be arranged on bottom support bracket simultaneously, thus the active force of dam facing and hydraulic cylinder is converted into the internal force of bottom support bracket, base support plate and concrete pedestal are no longer torn, thus extends the application life of basic junction plate or concrete pedestal.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the application.
Accompanying drawing explanation
The overall structure schematic diagram of the welding bottom support bracket that Fig. 1 provides for the embodiment of the present application;
The plan structure schematic diagram of the employing welding bottom support bracket that Fig. 2 provides for the embodiment of the present application;
Fig. 3 is the sectional structure schematic diagram in A-A direction in Fig. 2;
Fig. 4 is the perspective view of Fig. 3;
The overall structure schematic diagram on the monolithic hinge dam of the employing welding bottom support bracket that Fig. 5 provides for the embodiment of the present application.
Accompanying drawing illustrates:
10-welds bottom support bracket;
100-base plate;
1000-connecting hole;
101-side plate;
1010-substrate;
1012-extension;
1014-first breach;
102-dam facing axle sleeve;
103-hydraulic cylinder axle sleeve;
104-hydraulic cylinder axle sleeve junction plate;
1040-void region;
1042-second breach;
105-strengthens gusset;
The horizontal stiffener of 106-;
107-sealing ring;
108-back-up ring;
20-dam facing;
30-hydraulic cylinder.
Accompanying drawing to be herein merged in manual and to form the part of this manual, shows the embodiment meeting the application, and is used from manual one principle explaining the application.
Detailed description of the invention
Also by reference to the accompanying drawings the application is described in further detail below by specific embodiment."front", "rear" described in literary composition, "left", "right", " on ", D score all with the laying state of the welding bottom support bracket on the monolithic hinge dam in accompanying drawing for reference.
As shown in Figure 1, the embodiment of the application provides a kind of welding bottom support bracket 10 of monolithic hinge dam, comprise base plate 100, side plate 101, dam facing axle sleeve 102, hydraulic cylinder axle sleeve 103, hydraulic cylinder axle sleeve junction plate 104, strengthen gusset 105, horizontal stiffener 106, sealing ring 107 and back-up ring 108.As shown in Figure 5, monolithic hinge dam, except comprising welding bottom support bracket 10, also comprises dam facing 20 and hydraulic cylinder 30.
Please continue see Fig. 1, wherein, base plate 100 is positioned at the bottommost of welding bottom support bracket 10, is main load bearing component, is also the link with basic junction plate (not shown) simultaneously.The both sides of base plate 100 are provided with some connecting holes 1000, the anchor pole embedding concrete pedestal can be adopted through connecting hole 1000, and be strained and fixed by nut.
The quantity of side plate 101 is two pieces, and two blocks of side plates 101 are vertically welded in the upper surface of base plate 100, and is arranged side by side at two blocks of side plates 101, and leaves certain gap each other.The size in gap equals the axial length of dam facing axle sleeve 102 substantially.
The two ends of dam facing axle sleeve 102 weld together with one of them side plate 101 respectively, thus realize the fixing of dam facing axle sleeve 102.The lower shaft (not shown) of dam facing 20 can pass dam facing axle sleeve 102, thus completes fixing.In order to prevent river from being infiltrated by the gap between dam facing axle sleeve 102 and lower shaft, outside the two ends in the present embodiment, sealing ring 107 being arranged on dam facing axle sleeve 102, simultaneously also at the arranged outside back-up ring 108 of sealing ring 107.After monolithic hinge dam has assembled, dam facing 20 can form certain extruding force to back-up ring 108, and now, sealing ring 107 just can be extruded distortion under the acting in conjunction of back-up ring 108 and dam facing axle sleeve 102, thus produces sealing effectiveness.
The quantity of hydraulic cylinder axle sleeve 103 is also two, two coaxial settings of hydraulic cylinder axle sleeve 103, and to be parallel to each other with dam facing axle sleeve 102, lower shaft due to hydraulic cylinder 30 relies on the connection tongue be arranged on bottom hydraulic cylinder 30 to be enclosed within the external of lower shaft to complete connection, therefore in order to dodge connection tongue, need to leave gap between two hydraulic cylinder axle sleeves 103.During connection, connect the lower shaft medium position that tongue is enclosed within hydraulic cylinder 30, and be in the gap between two hydraulic cylinder axle sleeves 103, the two ends of the lower shaft of hydraulic cylinder 30 then extend within the hydraulic cylinder axle sleeve 103 of corresponding side respectively.
Hydraulic cylinder axle sleeve junction plate 104 is the fixed structure of hydraulic cylinder axle sleeve 103, according to the difference of stressing conditions, welding bottom support bracket 10 can arrange several hydraulic cylinder axle sleeves 103, each hydraulic cylinder axle sleeve 103 is all welded and fixed with hydraulic cylinder axle sleeve junction plate 104, and multiple hydraulic cylinder axle sleeve junction plate 104 is all fixedly welded on the upper surface of base plate 100.Consider minimizing construction weight, under the stressed prerequisite meeting hydraulic cylinder axle sleeve 103, suitably can offer some void region 1040 (see Fig. 3,4) on hydraulic cylinder axle sleeve junction plate 104.
Welding bottom support bracket 10 in the present embodiment is by arranging dam facing axle sleeve 101 and hydraulic cylinder axle sleeve 102, dam facing 20 and hydraulic cylinder 30 can be arranged on bottom support bracket simultaneously, thus the active force of dam facing and hydraulic cylinder is converted into the internal force of bottom support bracket, base support plate and concrete pedestal are no longer torn.In addition, because dam facing axle sleeve 101 and hydraulic cylinder axle sleeve 102 are all arranged on welding bottom support bracket 10, therefore the spacing between the lower shaft of dam facing 20 and the lower shaft of hydraulic cylinder 30 is also reduced, after spacing reduces, the active force angle of dam facing 20 and hydraulic cylinder 30 is more close, make the direction of making a concerted effort more close to vertical direction, decrease the component of horizontal direction, and no matter for welding bottom support bracket 10, or for basic junction plate and concrete pedestal, the ability of bearing vertical direction active force is all better than the ability of bearing horizontal direction active force, therefore the structure of this welding bottom support bracket 10 also can improve the force environment of self and basic junction plate and concrete pedestal, thus avoid welding bottom support bracket 10, basis junction plate or concrete pedestal damage, improve application life.
In the present embodiment, because welding bottom support bracket 10 self needs to bear the multiple action power that dam facing 20 and hydraulic cylinder 30 comprise gravity, the structural strength therefore promoting self each position of welding bottom support bracket 10 is also particularly important.As shown in Fig. 1,2,4, be provided with in the present embodiment and strengthen the intensity that gusset 105 and horizontal stiffener 106 improve welding bottom support bracket 10.Wherein, strengthen gusset 105 to be mainly used in strengthening the syndeton between side plate 101 and base plate 100.The quantity strengthening gusset 105 can adjust according to actual needs, generally at least needs the reinforcement gusset 105 of more than 6 pieces.These strengthen the outside that gusset 105 can be symmetricly set on two blocks of side plates 101, and simultaneously perpendicular to side plate 101 and base plate 100, afterwards, are welded by reinforcement gusset 105 with side plate 101 and base plate 100 simultaneously.The shape strengthening gusset 105 can adopt the good triangle of structural stability.
Consider equilibrium problem that is stressed and layout, two hydraulic cylinder axle sleeves 103 are preferably all arranged between two blocks of side plates 101.Now, in order to the lower shaft of hydraulic cylinder 30 can be enable to assemble with hydraulic cylinder axle sleeve 103 smoothly, then side plate 102 had better not block the running-on of hydraulic cylinder axle sleeve 103.In this case, strengthening gusset 105 to ensure that side plate 102 can also possess enough regions to weld, in the present embodiment, the structure of side plate being optimized.As shown in Figure 3, side plate 101 comprises substrate 1010 and extension 1012, relative to base plate 100, the height of substrate 1010 is higher than the height of hydraulic cylinder axle sleeve 103, the height of extension 1012 then will lower than the height of hydraulic cylinder axle sleeve 103, now, substrate 1010 part of dam facing axle sleeve 102 and two blocks of side plates 101 is welded and fixed, extension 1012 can pass by below the axis of hydraulic cylinder axle sleeve 103, and hydraulic cylinder axle sleeve 103 can not be sheltered from, thus extend the length of side plate 101, make its substrate 1010 and extension 1012 can weld and strengthen gusset 105, thus add the welding quantity strengthening gusset 105.In the present embodiment, to adopt six pieces to strengthen gusset 105, two pieces can be welded strengthen gusset on substrate 1010, and on extension 1012, weld one piece of reinforcement gusset 105.
As Figure 1-4, horizontal stiffener 106 is mainly used in the degree that is connected firmly strengthening dam facing axle sleeve 102.Particularly, horizontal stiffener 106 is arranged between two side plates 101 and dam facing axle sleeve 102, and perpendicular to side plate 101, horizontal stiffener 106 welds with two blocks of side plates 101 and dam facing axle sleeve 102.Weld seam between side plate 101 and dam facing axle sleeve 102 is merely able to extend along the radial direction of dam facing axle sleeve 102, and therefore side plate can be provided in the comparatively strong ties intensity in the radial dimension of dam facing axle sleeve 102 for dam facing axle sleeve 102.And horizontal stiffener 106 is due to perpendicular to side plate 101, therefore, it is possible to being provided in the comparatively strong ties intensity in the axial dimension of dam facing axle sleeve 102 for dam facing axle sleeve 102.By the acting in conjunction of side plate 101 and horizontal stiffener 106, dam facing axle sleeve 102 can be made simultaneously in radial and axial dimension, to obtain stronger bonding strength, make dam facing axle sleeve 102 entirety more firm.
Active force due to dam facing 20 has greatly downwards, and therefore the anti-pressure ability of dam facing axle sleeve 102 is also very important.In the present embodiment, can by horizontal stiffener 106 simultaneously with side plate 102 and base plate 100 perpendicular, and horizontal stiffener 106 and base plate 100, two blocks of side plates 101 and dam facing axle sleeve 102 all to be welded.Like this, horizontal stiffener 106 just can be supported dam facing axle sleeve 102 by the bottom of dam facing axle sleeve 102, to improve the compressive property of dam facing axle sleeve 102.
In addition, in order to improve the degree that is connected firmly of dam facing axle sleeve 102 and hydraulic cylinder axle sleeve 103 further, also be provided with the first breach 1014 in the top of the substrate 1010 of two side plates 101 respectively in the present embodiment, the bottom of dam facing axle sleeve 102 embeds in the first breach 1014.Same, be also provided with the second breach 1042 in the top of each hydraulic cylinder axle sleeve junction plate 104, the bottom of hydraulic cylinder axle sleeve 103 embeds in the second breach 1042.Like this, no matter be dam facing axle sleeve 102 or hydraulic cylinder axle sleeve 103, be all be in the first breach 1014 or the second breach 1042 semi-surrounding under, therefore with can be connected between breach more firm.
The welding bottom support bracket 10 on the monolithic hinge dam that the present embodiment provides can make base support plate and concrete pedestal no longer be torn, and the force environment of self and basic junction plate and concrete pedestal can be improved, thus avoid welding bottom support bracket 10, basic junction plate or concrete pedestal to damage, improve application life.
In addition, the welding bottom support bracket 10 on monolithic hinge dam that the present embodiment provides also possesses following technique effect:
1, be conducive to whole workpiece weld strength to ensure, the whole workpiece of welding bottom support bracket 10 just can complete all process in factory: under workpiece blanking, welding, elimination internal stress (Ageing Treatment), processing, dam body axle sleeve 102 and hydraulic cylinder axle sleeve 103 are closed in installation foundation face, boring, and especially the integral solder intensity of this part is ensured fully.
2, be conducive to the integrated of monolithic hinge dam unit module, in the unit assembling that factory just can complete hinge dam, become respective integral module; Just the integrated of respective unit module is sat in the right seat when installing in building site;
2.1, installation accuracy: the unit assembling on hinge dam improves integrated hydraulic hinge dam installation accuracy, distance between the turning cylinder hinged system of hinge dam dam body and hydraulic jack lower end hinge system is ensured reliably, improves overall precision and the unfailing performance on hinge dam.
2.2, installation rate: the unit assembling on hinge dam improves installation rate, guarantees hinge dam installation period, is conducive to corporate team's competitiveness commercially.
2.3, interchangeability: the unit on hinge dam is conducive to exchanging between equivalent specifications hinge dam, when a certain fan of certain engineering is out of joint or a certain duration of a project is in an emergency, is coordinated by the production scheduling of company.
2.4, standardization: the unit on hinge dam is conducive to the raising of Products standardization level, the quality of the stable outsourcing piece supporting with product, standard component and shorten and outsourcing piece that product is supporting, standard component procurement cycle.
3, weld bottom support bracket 10 rational in infrastructure, integral hydraulic hinge dam body be based upon solid, stably, accurately on basis; Ensure that the precision of hinge dam running orbit.
4, in integral hydraulic hinge dam design motion process, the pin joint that dam facing 20, hydraulic cylinder 30, welding bottom support bracket 10 combine three's connection changes in leg-of-mutton mode all the time, from the initial point integral hydraulic hinge dam motion process to terminal, that several triangles run through between three pin joints, ensure stablizing and accurately, optimizing this motion process space force system reasonability in integral hydraulic hinge dam design motion process.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the application.
Claims (10)
1. the welding bottom support bracket on monolithic hinge dam, is characterized in that, comprises base plate, two pieces of side plates, dam facing axle sleeve, two hydraulic cylinder axle sleeves and multiple hydraulic cylinder axle sleeve junction plates,
Two pieces of equal tile verticallies of described side plate are welded in the upper surface of described base plate, the two ends of described dam facing axle sleeve respectively with plate-side plate welding described in one of them,
The coaxial setting of two described hydraulic cylinder axle sleeves, and be parallel to each other with described dam facing axle sleeve, gap is left between two described hydraulic cylinder axle sleeves, each described hydraulic cylinder axle sleeve is all welded and fixed with described hydraulic cylinder axle sleeve junction plate, and multiple described hydraulic cylinder axle sleeve junction plates are all fixedly welded on the upper surface of described base plate.
2. the welding bottom support bracket on monolithic hinge dam according to claim 1, it is characterized in that, also comprise multiple reinforcement gusset, multiple described reinforcement gussets are all arranged on the outside of two blocks of described side plates, and simultaneously perpendicular to described side plate and described base plate, described reinforcement gusset welds with described side plate and described base plate simultaneously.
3. the welding bottom support bracket on monolithic hinge dam according to claim 2, it is characterized in that, two described hydraulic cylinder axle sleeves are all arranged between two blocks of described side plates, described side plate comprises substrate and extension, relative to described base plate, the height of described substrate is higher than described hydraulic cylinder axle sleeve, the height of described extension is lower than described hydraulic cylinder axle sleeve, the substrate portion of described dam facing axle sleeve and two blocks of described side plates is welded and fixed, described extension then passes by below the axis of described hydraulic cylinder axle sleeve, all described with at least one piece reinforcement gusset of described substrate and described extension welds.
4. the welding bottom support bracket on monolithic hinge dam according to claim 2, is characterized in that, multiple described reinforcement gussets are symmetricly set on the outside of two blocks of described side plates.
5. the welding bottom support bracket on monolithic hinge dam according to claim 2, is characterized in that, the shape of described reinforcement gusset is triangle.
6. the welding bottom support bracket on the monolithic hinge dam according to any one of claim 1 to 5, it is characterized in that, also comprise horizontal stiffener, described horizontal stiffener is arranged between two described side plates and described dam facing axle sleeve, and perpendicular to described side plate, described horizontal stiffener welds with two blocks of described side plates and described dam facing axle sleeve.
7. the welding bottom support bracket on monolithic hinge dam according to claim 6, it is characterized in that, described horizontal stiffener simultaneously with described side plate and described base plate perpendicular, and described horizontal stiffener all welds with base plate, two blocks of described side plates and described dam facing axle sleeve.
8. the welding bottom support bracket on the monolithic hinge dam according to any one of claim 1 to 5, is characterized in that,
The top of described side plate is provided with the first breach, and the bottom of described dam facing axle sleeve embeds in described first breach;
And/or
The top of described hydraulic cylinder axle sleeve junction plate is provided with the second breach, and the bottom of described hydraulic cylinder axle sleeve embeds in described second breach.
9. the welding bottom support bracket on the monolithic hinge dam according to any one of claim 1 to 5, is characterized in that, the inside of described hydraulic cylinder axle sleeve junction plate is provided with void region.
10. the welding bottom support bracket on the monolithic hinge dam according to any one of claim 1 to 5, is characterized in that, also comprise back-up ring and sealing ring, described sealing ring and described back-up ring are set in the two ends of described dam facing axle sleeve successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521002324.5U CN205171466U (en) | 2015-12-07 | 2015-12-07 | Welding bottom support on integral hinge dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521002324.5U CN205171466U (en) | 2015-12-07 | 2015-12-07 | Welding bottom support on integral hinge dam |
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| Publication Number | Publication Date |
|---|---|
| CN205171466U true CN205171466U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521002324.5U Active CN205171466U (en) | 2015-12-07 | 2015-12-07 | Welding bottom support on integral hinge dam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976014A (en) * | 2017-05-12 | 2017-07-25 | 江苏华飞合金材料科技股份有限公司 | A kind of lightweight stainless steel wire polishes structure |
| CN107178071A (en) * | 2017-04-25 | 2017-09-19 | 北京赛旺特科技发展有限公司 | A kind of hinge dam |
| CN113529662A (en) * | 2021-07-05 | 2021-10-22 | 江苏东科液压机械有限公司 | Hinge dam with efficient transmission link mechanism |
-
2015
- 2015-12-07 CN CN201521002324.5U patent/CN205171466U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178071A (en) * | 2017-04-25 | 2017-09-19 | 北京赛旺特科技发展有限公司 | A kind of hinge dam |
| CN107178071B (en) * | 2017-04-25 | 2023-10-20 | 北京赛旺特科技发展有限公司 | Hinge dam |
| CN106976014A (en) * | 2017-05-12 | 2017-07-25 | 江苏华飞合金材料科技股份有限公司 | A kind of lightweight stainless steel wire polishes structure |
| CN113529662A (en) * | 2021-07-05 | 2021-10-22 | 江苏东科液压机械有限公司 | Hinge dam with efficient transmission link mechanism |
| CN113529662B (en) * | 2021-07-05 | 2022-07-12 | 江苏东科液压机械有限公司 | Hinge dam with transmission link mechanism |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Yanyu Inventor after: Shao Jinsong Inventor after: Zhao Yuefen Inventor after: Yan Yongsheng Inventor after: Wang Zhan Inventor after: Geng Yehan Inventor after: Liu Jie Inventor after: Liu Xuran Inventor after: Dou Liwei Inventor after: Wang Guoqiu Inventor before: Chen Yanyu Inventor before: Shao Jinsong Inventor before: Zhao Yuefen Inventor before: Yan Yongsheng Inventor before: Wang Zhan Inventor before: Geng Yehan Inventor before: Liu Jie Inventor before: Liu Xuran Inventor before: Dou Liwei Inventor before: Wang Guoqiu |
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