CN105421589B - A kind of house studied for low rise buildings roof system wind pressure actual measurement - Google Patents
A kind of house studied for low rise buildings roof system wind pressure actual measurement Download PDFInfo
- Publication number
- CN105421589B CN105421589B CN201510938647.3A CN201510938647A CN105421589B CN 105421589 B CN105421589 B CN 105421589B CN 201510938647 A CN201510938647 A CN 201510938647A CN 105421589 B CN105421589 B CN 105421589B
- Authority
- CN
- China
- Prior art keywords
- annular groove
- house body
- roof system
- wind pressure
- main house
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/346—Rotary buildings; Buildings with rotary units, e.g. rooms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/16—Roof structures with movable roof parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of house studied for low rise buildings roof system wind pressure actual measurement, including main house body, wind pressure measurement system for measuring main house body windward side blast, being arranged at is used for the base and upper shape groove that carry main house body below main house body, the base lower surface forms lower annular groove corresponding with the upper annular groove, some balls are provided with lower annular groove, ball is pressed on lower annular groove by upper annular groove, the diameter of ball is less than or equal to upper, the groove width of lower annular groove, the diameter of ball is more than upper annular groove bottom land to the distance of lower annular groove bottom land.The present invention can make the flexible adjustment direction in wind load test room, pass through the wind pressure sensor in test room, wind pressure data of the wind from different directions to test room can be collected, experiment is substantially reduce the number and is consumed, save plenty of time and a large amount of human and material resources, financial resources.
Description
Technical field
The present invention relates to wind pressure measurement field, and in particular to a kind of room studied for low rise buildings roof system wind pressure actual measurement
Room.
Background technology
Existing wind load test room device direction is fixed, and the frequency that high wind arrives is very low, considerably increases the difficulty of experiment
Degree, when high wind comes interim, it is impossible to the blast according to needed for the flexible capture assay of wind direction, is differed with the ideal effect of test requirements document
It is very remote.The unfavorable wind load needed for experiment may not necessarily be got, the research of experiment is influenceed.
The content of the invention
In view of this, it is an object of the invention to provide a kind of house studied for low rise buildings roof system wind pressure actual measurement.
The purpose of the present invention realizes that one kind is ground for low rise buildings roof system wind pressure actual measurement by such technical scheme
The house studied carefully, including main house body, the wind pressure measurement system for measuring main house body windward side blast, it is arranged at main house body
Lower section is used for the base and upper annular groove for carrying main house body, and the base lower surface forms corresponding with the upper annular groove
Some balls are provided with lower annular groove, lower annular groove, ball is pressed on lower annular groove by upper annular groove, and the diameter of ball is small
In or equal to upper and lower annular groove groove width, the diameter of ball is more than upper annular groove bottom land to the distance of lower annular groove bottom land；It is described
The through hole for being provided with and coordinating with locating dowel on locating dowel, the base of main house body, positioning are installed on the chassis of upper shape groove center
The upper end of post is stretched into main house body after passing through the through hole.
Further, the main house body includes wall, the roof system that is covered on wall and for being lifted to roof system
Lowering or hoisting gear, the lowering or hoisting gear includes support 1, commutation gearing speed-reducer 2, pedestal 3, long lead screw 4, adapter sleeve 5, flat thrust
Ball bearing 6, trapezoidal nut 8, support frame 9, clutch shaft bearing 18, sprocket wheel 19, limited block 22 and protective case 23；In the upper of long lead screw 4
End is provided with trapezoidal nut 8, and trapezoidal nut 8 is fixed with support frame 9, and support frame 9 is fixed on roof system；Under the long lead screw 4
The port with the vertical direction of gearing speed-reducer 2 that commutates is held to be connected, the port of the commutation horizontal direction of gearing speed-reducer 2 and motor
17 and drive disk assembly connection；The commutation gearing speed-reducer 2 is fixed on support 1, the housing in commutation gearing speed-reducer 2 upper end
On be fixed with support frame pedestal 3, installed and be located by connecting set 5, the length by flat thrust ball bearing 6 on support frame pedestal 3
Leading screw 4 is connected by adapter sleeve 5 with the port for the vertical direction of gearing speed-reducer 2 that commutates；It is provided with the lower end of the long lead screw 4
Protective case 23, protective case 23 is set on adapter sleeve 5, is convexly equipped with the outer wall of adapter sleeve 5 for limiting protective case 23
The limited block 22 of position.
Further, the drive disk assembly is to include the first cross axle 7, jackshaft 12, universal joint fork 13, the second cross axle
14th, reductor 16, motor 17 and power transmission shaft 20, the clutch end of motor 17 are connected with the power intake of reductor 16, subtracted
The clutch end of fast machine 16 is connected with power transmission shaft 20, and power transmission shaft 20 is connected with the second cross axle 14, and the second cross axle 14 passes through
Universal joint fork 13 is connected with jackshaft 12, and jackshaft 12 passes through the first cross axle 7 and the commutation horizontal direction of gearing speed-reducer 2
Port is connected.
Further, the wind pressure measurement system includes little differential pressure sensor, three-way connection 27, pressure measurement probe 25, valve 31
And plenum chamber；The little differential pressure sensor includes static pressure and gathers port 29 and stagnation pressure collection port 28, and stagnation pressure collection port passes through
Silicone tube 26 is connected to one end of three-way connection, and the other two ends of three-way connection are connected with pressure measurement probe and valve respectively, pressure measurement
Probe uses external screw thread stainless steel hollow pipe, is outwardly and inwardly connected respectively with an inside spin sleeve pipe in roof system, valve and draining
Pipeline 30 is connected to exclude from the internal rainwater flowed into of pressure measurement probe, and the static pressure collection port passes through silicone tube and plenum chamber
Connection, for measuring static pressure data, the afterbody of little differential pressure sensor is connected by cable with collector, and collector is by blast mould
Intend signal and be converted into data signal, so that data acquisition works.
By adopting the above-described technical solution, the present invention has the advantage that：
The present invention can make the flexible adjustment direction in wind load test room, by the wind pressure sensor in test room, can adopt
Collect wind pressure data of the wind from different directions to test room, substantially reduce the number experiment consumed, save the plenty of time and
A large amount of human and material resources, financial resources.
Brief description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step, wherein：
Fig. 1 is lifting device structure schematic diagram；
Fig. 2 is enlarged drawing at Fig. 1 I；
Fig. 3 is wind pressure measurement system schematic；
Fig. 4 is the schematic diagram of roof system jacking system.
Embodiment
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail；It should be appreciated that preferred embodiment
Only for the explanation present invention, the protection domain being not intended to be limiting of the invention.
It is a kind of for low rise buildings roof system wind pressure actual measurement study house, including main house body, for measuring main house body
The wind pressure measurement system of windward side blast, it is arranged at and is used for the base and upper annular groove that carry main house body below main house body,
The base lower surface forms in lower annular groove corresponding with the upper annular groove, lower annular groove and is provided with some balls, on
Ball is pressed on lower annular groove by annular groove, and the diameter of ball is less than or equal to the groove width of upper and lower annular groove, the diameter of ball
More than the distance of upper annular groove bottom land to lower annular groove bottom land；Locating dowel, house are installed on the chassis of the upper shape groove center
The through hole coordinated with locating dowel is provided with the base of main body, main house body is stretched into the upper end of locating dowel after passing through the through hole
It is interior.
The present invention can make the flexible adjustment direction in wind load test room, by the wind pressure sensor in test room, can adopt
Collect wind pressure data of the wind from different directions to test room, substantially reduce the number experiment consumed, save the plenty of time and
A large amount of human and material resources, financial resources.
The main house body includes wall, the roof system I being covered on wall and the lifting dress for being lifted to roof system
II is put, in order to realize roof system slope angle continuously adjustabe, using 2 points of electronic supporting forms of activity, i.e. ridge girder raising uses two sets
Lowering or hoisting gear, realizes ridge girder synchronous ascending.To be movably hinged between roof system and ridge girder, in the drive of ridge girder
Under, roof system realizes adjusting blade angle；In order to overcome the upward pressure of roof system, roof system uses slide guide device III, so as to control side
Beam movement locus, it is ensured that roof system is stable；In order to overcome the lateral thrust that roof system is produced, 3 groups of vertically-guided devices are set, it is ensured that room
Ridge girder is vertically moved up or down.
Lowering or hoisting gear includes support 1, commutation gearing speed-reducer 2, pedestal 3, long lead screw 4, adapter sleeve 5, flat thrust ball axle
Hold the 6, first cross axle 7, trapezoidal nut 8, support frame 9, chain 10, connecting bolt 11, jackshaft 12, universal joint fork 13,
Two cross axles 14, flange shaft bearing 15, reductor 16, motor 17, clutch shaft bearing 18, sprocket wheel 19, power transmission shaft 20, second bearing
21st, limited block 22, protective case 23, pin 24 etc..
Trapezoidal nut 8 is installed in the upper end of long lead screw 4, trapezoidal nut 8 is fixed with support frame 9, and support frame 9 is fixed on room
Cover；The lower end of the long lead screw 4 is connected with the port for the vertical direction of gearing speed-reducer 2 that commutates, the commutation gearing speed-reducer 2
The port of horizontal direction is connected with motor 17 and drive disk assembly, and the drive disk assembly is reductor 16, the power output of motor 17
End is connected with the power intake of reductor 16, and the clutch end of reductor 16 is connected with power transmission shaft 20, power transmission shaft 20 and the
Two cross axles 14 are connected, and the second cross axle 14 is connected by universal joint fork 13 with jackshaft 12, and jackshaft 12 passes through the 10th
Word axle 7 is connected with the port for the horizontal direction of gearing speed-reducer 2 that commutates；The commutation gearing speed-reducer 2 is fixed on support 1,
Support frame pedestal 3 is fixed with the housing of commutation gearing speed-reducer 2 upper end, passes through flat thrust ball axle on support frame pedestal 3
Hold 6 installations to be located by connecting set 5, the long lead screw 4 is connected by adapter sleeve 5 with the port for the vertical direction of gearing speed-reducer 2 that commutates.
Protective case 23 is provided with the lower end of long lead screw 4, protective case 23 is set on adapter sleeve 5, in the outer wall of adapter sleeve 5
On be convexly equipped with for carrying out spacing limited block 22 to protective case 23；The long lead screw 4 and adapter sleeve 5 are fixed by pin 24 to be connected
Connect；The power transmission shaft 20 is arranged in flange shaft bearing 15 by second bearing 21, and flange shaft bearing 15 is fixed with reductor 16
Connection.
The operation principle of the present invention：Motor 17 passes through reductor 16, power transmission shaft 20, the second cross axle 14, universal joint fork
13rd, jackshaft 12, the first cross axle 7 are transferred power on commutation gearing speed-reducer 2, and commutation gearing speed-reducer 2 is by level side
To rotation change into the rotation of vertical direction, drive long lead screw 4 to rotate, combine 8 with trapezoidal nut by long lead screw 4 and drive and prop up
Support 9 is lifted, and the sprocket wheel 19 on support frame 9 drives the driving hoistable platform of chain 10 to move up and down.When elevating mechanism works,
Long lead screw 4 bears to carry out the material gravity effect of self elevating platform, and long lead screw 4 is by weight transfer to adapter sleeve 5, and adapter sleeve 5 is again
By flat thrust ball bearing 6 by weight transfer to support frame pedestal 3, support frame pedestal 3, which is further transferred force to, to be changed
To on the shell of gearing speed-reducer 2, shell is delivered to ground by support 1.Stress shape of the present invention to the gearing speed-reducer 2 that commutates
State is redesigned, and changes its axial stress distribution shape by installing a flat thrust ball bearing additional in vertical direction
State, makes axial force be delivered to by thrust ball bearing on the shell of commutation gearing speed-reducer 2, makes inside commutation gearing speed-reducer 2
The drive disk assemblies such as gear are no longer influenced by the immense pressure from platform, improve the load state of commutator mechanism, so as to obtain good
Good working environment, extends the service life of the mechanism, and its functional reliability and stability are greatly reinforced.
The wind pressure measurement system includes little differential pressure sensor, three-way connection 27, pressure measurement probe 25, valve 31 and static pressure
Room；The little differential pressure sensor includes static pressure and gathers port 29 and stagnation pressure collection port 28, and stagnation pressure collection port passes through silicone tube
26 are connected to one end of three-way connection, and the other two ends of three-way connection are connected with pressure measurement probe and valve respectively, and pressure measurement probe is adopted
With external screw thread stainless steel hollow pipe, outwardly and inwardly it is connected respectively with an inside spin sleeve pipe in roof system, valve and drainage pipeline 30
It is connected to exclude from the internal rainwater flowed into of pressure measurement probe, the static pressure collection port is connected by silicone tube with plenum chamber,
For measuring static pressure data, the afterbody of little differential pressure sensor is connected by cable with collector, and collector, which simulates blast, to be believed
Number data signal is converted into, so that data acquisition works.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, it is clear that those skilled in the art
Member can carry out various changes and modification to the present invention without departing from the spirit and scope of the present invention.So, if the present invention
These modifications and variations belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to include these
Including change and modification.
Claims (3)
1. a kind of house studied for low rise buildings roof system wind pressure actual measurement, it is characterised in that：Including main house body, for measuring
The wind pressure measurement system of main house body windward side blast, be arranged at be used for below main house body the base for carrying main house body and
Annular groove, the base lower surface form be provided with lower annular groove corresponding with the upper annular groove, lower annular groove it is some
Ball is pressed on lower annular groove by ball, upper annular groove, and the diameter of ball is less than or equal to the groove width of upper and lower annular groove, rolling
The diameter of pearl is more than upper annular groove bottom land to the distance of lower annular groove bottom land；It is fixed to be provided with the chassis of the upper annular groove center
The through hole coordinated with locating dowel is provided with position post, the base of main house body, the upper end of locating dowel is stretched into after passing through the through hole
In main house body, the main house body includes wall, the roof system (I) being covered on wall and the liter for being lifted to roof system
Falling unit (II), the lowering or hoisting gear includes support (1), commutation gearing speed-reducer (2), pedestal (3), long lead screw (4), adapter sleeve
(5), flat thrust ball bearing (6), trapezoidal nut (8), support frame (9), clutch shaft bearing (18), sprocket wheel (19), limited block (22)
With protective case (23)；Trapezoidal nut (8) is installed in the upper end of long lead screw (4), trapezoidal nut (8) is fixed with support frame (9), branch
Support (9) is fixed on roof system；The lower end of the long lead screw (4) is connected with the port of gearing speed-reducer (2) vertical direction that commutates,
The port of described commutation gearing speed-reducer (2) horizontal direction is connected with motor (17) and drive disk assembly；The commutation gear reduction
Device (2) is fixed on support (1), and support frame pedestal (3) is fixed with the housing of commutation gearing speed-reducer (2) upper end, in branch
The set (5) that is located by connecting is installed by flat thrust ball bearing (6) on support pedestal (3), the long lead screw (4) passes through adapter sleeve
(5) port with gearing speed-reducer (2) vertical direction that commutates is connected；The lower end of the long lead screw (4) is provided with protective case
(23), protective case (23) is set on adapter sleeve (5), is convexly equipped with the outer wall of adapter sleeve (5) for entering to protective case (23)
The spacing limited block (22) of row.
2. the house according to claim 1 studied for low rise buildings roof system wind pressure actual measurement, it is characterised in that：It is described to pass
Dynamic component is to include the first cross axle (7), jackshaft (12), universal joint fork (13), the second cross axle (14), reductor
(16), motor (17) and power transmission shaft (20), the clutch end of motor (17) are connected with the power intake of reductor (16), subtracted
The clutch end of fast machine (16) is connected with power transmission shaft (20), and power transmission shaft (20) is connected with the second cross axle (14), the second cross
Axle (14) is connected by universal joint fork (13) with jackshaft (12), and jackshaft (12) is passed by the first cross axle (7) with commutation
The port connection of dynamic decelerator (2) horizontal direction.
3. the house according to claim 1 studied for low rise buildings roof system wind pressure actual measurement, it is characterised in that：The wind
Measuring system is pressed to include little differential pressure sensor, three-way connection (27), pressure measurement probe (25), valve (31) and plenum chamber；It is described micro-
Differential pressure pick-up includes static pressure collection port (29) and stagnation pressure collection port (28), and stagnation pressure gathers port and connected by silicone tube (26)
One end of three-way connection is connected to, the other two ends of three-way connection are connected with pressure measurement probe and valve respectively, pressure measurement probe is using outer
Screw thread stainless steel hollow pipe, is outwardly and inwardly connected with an inside spin sleeve pipe respectively in roof system, and valve connects with drainage pipeline (30)
Connect for excluding from the internal rainwater flowed into of pressure measurement probe, the static pressure collection port is connected with plenum chamber by silicone tube, used
In measurement static pressure data, the afterbody of little differential pressure sensor is connected by cable with collector, and collector is by blast analog signal
Data signal is converted into, so that data acquisition works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938647.3A CN105421589B (en) | 2015-12-15 | 2015-12-15 | A kind of house studied for low rise buildings roof system wind pressure actual measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938647.3A CN105421589B (en) | 2015-12-15 | 2015-12-15 | A kind of house studied for low rise buildings roof system wind pressure actual measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105421589A CN105421589A (en) | 2016-03-23 |
| CN105421589B true CN105421589B (en) | 2017-10-10 |
Family
ID=55500096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938647.3A Active CN105421589B (en) | 2015-12-15 | 2015-12-15 | A kind of house studied for low rise buildings roof system wind pressure actual measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105421589B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503529B (en) * | 2017-08-31 | 2019-04-02 | 温州市大众城建监理有限公司 | A kind of building static pressure cell structure and its construction method |
| CN109974965B (en) * | 2019-04-11 | 2020-10-16 | 南通大学 | House for actually measuring and researching wind pressure of low building roof |
| CN110057532B (en) * | 2019-05-08 | 2020-10-30 | 重庆交通大学 | Automatic drainage system and wind pressure test system applied to wind load actual measurement house |
| CN110296807B (en) * | 2019-07-03 | 2020-10-30 | 浙江金果知识产权有限公司 | Wind load real measurement room with variable roof slope |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266740Y (en) * | 1996-01-04 | 1997-11-05 | 山东省科学院海洋仪器仪表研究所 | Propeller type windfinding sensor |
| JP5321342B2 (en) * | 2009-08-07 | 2013-10-23 | いすゞ自動車株式会社 | Model pressure loss setting method, model pressure loss adjustment structure, and fluid test model |
| CN202329909U (en) * | 2011-11-11 | 2012-07-11 | 湖南科技大学 | Universal wind pressure actual measurement device |
| CN102565695B (en) * | 2012-01-06 | 2015-06-10 | 中山市铧禧电子科技有限公司 | Wind pressure switch tester and control method thereof |
| CN102589838B (en) * | 2012-02-15 | 2014-04-16 | 浙江大学 | Internal air-supported rigidity simulation device for wind tunnel test model of single story building |
| CN202533219U (en) * | 2012-03-22 | 2012-11-14 | 长沙南车电气设备有限公司 | Pipe wind pressure alarm apparatus |
| CN202644793U (en) * | 2012-06-13 | 2013-01-02 | 江苏欧美钢结构幕墙科技有限公司 | Glass curtain wall for adjusting air internal recycle |
| CN203490070U (en) * | 2013-10-10 | 2014-03-19 | 中国建材检验认证集团股份有限公司 | Device for testing wind-resistant performance of building window shade |
| CN203629860U (en) * | 2013-10-10 | 2014-06-04 | 中国建材检验认证集团股份有限公司 | Constructional awning wind resistance performance test equipment |
| US20150197955A1 (en) * | 2014-01-13 | 2015-07-16 | Robert Platts | Using wind-induced depressurizations to help houses withstand hurricanes |
| CN104374517B (en) * | 2014-11-05 | 2017-10-13 | 中石化宁波工程有限公司 | A kind of pressure-detecting device |
| CN204422133U (en) * | 2015-03-12 | 2015-06-24 | 厦门大学 | A kind of self-correcting blast detection system |
| CN104730283B (en) * | 2015-03-12 | 2017-06-23 | 东南大学 | A kind of tri-dimensional wind speed wind direction sensor based on MEMS technology and preparation method thereof |
| CN205296400U (en) * | 2015-12-15 | 2016-06-08 | 重庆交通大学 | A house that is used for short building room lid wind pressure actual measurement research |
-
2015
- 2015-12-15 CN CN201510938647.3A patent/CN105421589B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105421589A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105421589B (en) | A kind of house studied for low rise buildings roof system wind pressure actual measurement | |
| CN205296400U (en) | A house that is used for short building room lid wind pressure actual measurement research | |
| CN109018430B (en) | Rotorcraft blade performance test bench | |
| CN206267616U (en) | A kind of mobile collapsible anemometer tower | |
| CN108151981B (en) | Air leakage detection system of medium-low pressure air compressor for power plant | |
| CN211824444U (en) | Total powerstation protection device | |
| CN104406531B (en) | Wind-induced displacement testing device for cooling tower aeroelastic model | |
| CN104020499B (en) | The mounting structure of Electromagnetism of Earthquake perturbation sensor and installation method | |
| CN214243612U (en) | Motor hoisting system based on box girder static load test system | |
| CN211085219U (en) | Steel construction pile foundation gradient detection device | |
| CN108444870A (en) | A kind of soil apparatus for measuring contact angle | |
| CN212988368U (en) | Total powerstation for land exploration | |
| CN208183642U (en) | Self-lifting type marine drilling platform two-driven-by-one lifting unit prototype installation | |
| CN208381622U (en) | A kind of automatic weather station bracket | |
| CN206479152U (en) | A kind of stay wire displacement sensor mounting bracket | |
| CN215726009U (en) | Liftable environmental monitor | |
| CN207199227U (en) | A kind of energy saving and environment friendly indoor and outdoor LED display | |
| CN205444964U (en) | Rope mechanism is gone up and down to put in pyramid building structure pinnacle of a pagoda | |
| CN108361499B (en) | Automatic weather station support | |
| CN210942139U (en) | Self-lifting winch-shaped buoy | |
| CN221725203U (en) | Bridge deformation monitoring device | |
| CN218933061U (en) | Foundation pit detection auxiliary device | |
| CN219757404U (en) | Construction site environment monitoring device | |
| CN116929856B (en) | Sampling robot and method for monitoring pollution of urban sewage to inland water quality | |
| CN221841065U (en) | Wind speed measuring device for lifting middle part of bridge construction arch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 1, Fuxing Avenue, Shuang Fu town, Jiangjin District, Chongqing Patentee after: chongqing jiaotong university Address before: 400074 Chongqing Nan'an District University Avenue, No. 66 Patentee before: chongqing jiaotong university |
|
| CP02 | Change in the address of a patent holder |