CN108050313A - Pipeline bilateral device - Google Patents
Pipeline bilateral device Download PDFInfo
- Publication number
- CN108050313A CN108050313A CN201710830413.6A CN201710830413A CN108050313A CN 108050313 A CN108050313 A CN 108050313A CN 201710830413 A CN201710830413 A CN 201710830413A CN 108050313 A CN108050313 A CN 108050313A
- Authority
- CN
- China
- Prior art keywords
- plate
- pipeline
- housing
- pipe joint
- bilateral device
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
- F16L9/19—Multi-channel pipes or pipe assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
A kind of pipeline bilateral device, including housing (1), internal partition (2) and pipe joint (3)；The case top and bottom are octagonal top plate (1 1) and bottom plate (1 2), the housing side sets four side plates (1 3) to be vertically connected with the top plate (1 1) and the bottom plate (1 2), the four additional side of the housing is docked with the pipe joint (3), and the side plate and the pipe joint are arranged at intervals；The internal partition (2) is made of core plate (2 1), trapezoidal plate (2 2) and set square (2 3)；Cavity is divided into two layers up and down by internal partition in the case where keeping cavity bilateral, and by way of reducing vertical dimension and increasing lateral dimension, in the case where hardly increasing height, make two kinds of fluids from bilateral device up and down two layers respectively by, so as to reach allow fluid bilateral and non-interfering purpose.
Description
Technical field
The present invention relates to a kind of pipeline bilateral devices.More particularly, to double for the pipeline of ventilation shaft and pressure water pipe
Logical device.
Background technology
Currently without the method for directly solving the problems, such as pressure water pipe and ventilation shaft intersection-type collision, various do can only be used
Regulation keeps away pipeline monitor.One of pipeline flow-direction is placed or at least changed in pipeline overlapping.As shown in Figure 1 passes through
The situation of curved solution intersection-type collision is returned up and down, and Normal practice is solved using 90 degree of elbow when pipeline returns curved up and down, is led to
Four 90 degree of elbow is often needed, resistance is relatively large.In order to make full use of the ceiling void, it is necessary to calculate all pipes during design and construction
The absolute altitude of line and routing will especially avoid pipeline monitor from colliding.This is increased to the workload and difficulty for drawing integrated pipe line chart, also
Can often malfunction in addition BIM systems in also increase pipeline collision prompting, and general intersection-type collision is all relevance, is gone out
An existing intersection-type collision may result in entire scheme and redesign.Electromechanical pipeline construction working is related to specialty and pipeline is numerous,
And pipeline monitor collision is frequently encountered, the measure for handling intersection-type collision is exactly that one of pipeline turning is allowed to overturn or entire position
Put movement.This processing mode randomness in scene is very strong, easily influences construction quality so that before and after processed position construction
Maintenance load increase.Pipeline turning is overturn or movement can tie up space of other pipelines in furred ceiling, can cause various pipes
Line is chaotic, and ceiling height is caused to increase, and increasing ceiling height will make the ceiling void tie up building using space, and reduction is built
Build the comfort level in space.These above-mentioned processing can only make pipeline overlapping interlock, and tie up the vertical direction spatial in furred ceiling so that other
Pipeline has to change routing and absolute altitude, ultimately becomes the situation of pipeline confusion.Thorough pipeline monitor collision problem is only solved,
The state of pipeline confusion can just be changed.
The content of the invention
Based on this, the present invention proposes a kind of pipeline bilateral device, because mutually when solving various pressure water pipe intersection-type collisions
It is tied up when the overlapping interleaving problem hidden and formed and various ventilation shaft intersection-type collisions for mutually avoidance in furred ceiling largely
The problem of space.
A kind of pipeline bilateral device, including：Housing 1, internal partition 2 and pipe joint 3；Case top and bottom are octagonal
Top plate 1-1 and bottom plate 1-2, housing side set four side plate 1-3 to be vertically connected with the top plate 1-1 and the bottom plate 1-2, shell
The four additional side of body is docked with pipe joint 3, and the side plate and the pipe joint are arranged at intervals；The pipe joint with
The shape to interface 3-1 of housing side is consistent with housing side shape, the shape of the connecting port 3-2 of the pipe joint and pipeline
Shape is consistent with pipe shape；Internal partition 2 is made of core plate, trapezoidal plate and set square, and core plate is quadrangle and centrally located,
Four sides connect four trapezoidal plates, wherein, two opposite trapezoidal plates turn over, and are turned under other two opposite trapezoidal plate, turn over and
Under be connected by set square between the trapezoidal plate that turns over.
Preferably, the trapezoidal area in the section that is made of trapezoidal plate and core plate however less than the sectional area of connecting port.
Preferably, turn over, under the angle turned between 30 degree to 60 degree.
Preferably, pipe joint is reducing form or straight tube form.
Preferably, the shape of side plate is quadrangle, and the shape of housing side is quadrangle, is quadrangle to interface.
Preferably, the size of four pipe joints is consistent or inconsistent.
Preferably, internal partition is made of two layers of skin-material 4 and intermediate insulating layer 5.
Preferably, assemble and use after housing, internal partition and pipe joint integration processing or parts processing.
Advantageous effect：Pipeline bilateral device is made of cavity and intermediate bulkhead, and the intermediate bulkhead of special construction is keeping cavity
Cavity is divided into two layers up and down in the case of bilateral, and by way of reducing vertical dimension and increasing lateral dimension, hardly
In the case of increasing height, make two kinds of fluids from bilateral device up and down two layers respectively by allowing fluid bilateral and mutual so as to reach
The purpose do not disturbed.More pipelines can be thus placed on an absolute altitude, actually add the capacity of the ceiling void, subtract
The workload of the pipeline layout of small designer becomes construction that is easy, accurate, while avoiding random to pipeline arrangement and positioning
To the influence that construction quality is brought, the construction working of each specialty is also greatly facilitated.
Description of the drawings
Fig. 1 is the schematic diagram for solving pipeline collision crossing instances in the prior art.
Fig. 2 is the appearance diagram of the pipeline bilateral device of the present invention.
Fig. 3 is the decomposition diagram of the pipeline bilateral device of the present invention
Fig. 4 is the appearance diagram of another embodiment of pipeline bilateral device of the present invention.
Fig. 5 is the decomposition diagram of another embodiment of pipeline bilateral device of the present invention.
Fig. 6：Internal partition keeps the temperature material diagrammatic cross-section.
Fig. 7：The section trapezoidal cross-section figure that core plate is formed with trapezoidal plate.
Fig. 8：Fluid operating schematic diagram in pipeline bilateral device.
Fig. 9：Fluid operating schematic diagram in another embodiment of pipeline bilateral device.
Figure 10：Using the PVC air hose schematic diagrames of pipeline bilateral device.
Figure 11：Using the PVC air hose schematic diagrames of 90 degree of elbows.
Figure 12：Using pipeline bilateral device and the wind speed comparison diagram of the PVC air hoses of 90 degree of elbows.
Specific embodiment
The present invention is explained with reference to the accompanying drawings and examples.
Referring to the drawings shown in 2-3, pipeline bilateral device is made of housing 1,2 pipe joint 3 of internal partition.According to practical use or
The difference of fluid properties, this three parts can be used as integration processing to be assembled after can also processing respectively and use.
Housing 1 is eight side bodies, and case top and bottom are octagonal top plate 1-1 and bottom plate 1-2, are had in the side of housing
Four stand to side plate 1-3 and top plate 1-1, the bottom plate 1-2 of quadrangle be vertically connected with, four additional side and the pipeline of housing connect
Mouth 3 docks.It is the most reasonable when bilateral device is eight side body after tested.
Pipe joint 3 and 1 joint port of housing are referred to as to interface 3-1, are quadrangle to interface, pipe joint and other
Pipeline docking port be referred to as connecting port 3-2, the shape of connecting port is consistent with interfaced pipe shape, can be circle,
Quadrangle etc., pipe joint can be reducing form or straight tube form.Pipe joint plays a buffering to fluid
Effect, the length of pipe joint can need to make different lengths specification according to construction space and performance requirement.Form pipeline bilateral
Four pipe joints 3 of device form the axial direction of two square crossings, and the size of four pipe joints 3 is consistent, and the pipeline bilateral
Device is even more in practical applications not differentiate between direction when four 3 sizes of pipe joint are identical regardless of top bottom and positive and negative.
Plate at 2 center of internal partition is referred to as core plate 2-1, and four plates to connect with four sides of core plate are referred to as trapezoidal plate 2-2, no
Coplanar axial trapezoidal plate 2-2 turn over respectively and under turn over, and turn over, under the consistent angle of angle turned over 30 degree to 60 degree it
Between.Trapezoidal plate can play preferably drainage effect in this angle, and opposite windage is smaller.Turn over rear and core above and below by trapezoidal plate
The plate for the trigonum that the right angle endpoint of plate is formed is referred to as set square 2-3, and set square 2-3 plays the work with housing seal drainage
With.Set square 2-3, trapezoidal plate 2-2, core plate 2-1 composition internal partitions 2.Internal partition 2 is located in housing 1.
Another embodiment of the present invention as illustrated in figures 4-5 is with one difference of embodiment, forms pipeline bilateral device
Four pipe joints 3, form the axial direction of two square crossings, and the size of four pipe joints 3 is inconsistent.When 3 ruler of pipe joint
When very little different, as long as can be installed on the pipeline plugged into can normal use for four pipe joints 3.
Pipeline bilateral device can be made using a variety of materials, with carbon steel, cast steel, steel alloy, stainless steel, copper, aluminium alloy, modeling
The materials such as material, acrylic, pvc, composite metal plate can make.This Outer Tube bilateral device can be square, circular etc., wherein eight
The structure of side body is very beneficial for fluid and passes through.According to fluid property and using when whether need upper and lower fluid there are heat transfer
Demand, internal partition 2 can be made by sandwich heat preservation material, also can be by board makings such as the good aluminium sheets of heat-conductive characteristic.
As shown in fig. 6, when the fluid of two axial directions passed crosswise is there are the needs according to practical application during the temperature difference, it is interior every
The material that Double-layer clamp thermal insulation material may be employed in plate makes, and is mainly made of surface material 4 and insulating layer 5.
As shown in fig. 7, the angle R that the bottom plate 1-2 or top plate 1-2 of trapezoidal plate 2-2 and housing are formed is at 30 degree to 60 degree
Between the most rationally, resistance when fluid and trapezoidal plate meet in this angular range after tested is in most reasonable interval.
As shown in figure 8, the trapezoid cross section 2-3 areas being made of core plate 2-1 and same axial trapezoidal plate 2-2 need to be not small
In the sectional area of connecting port 3-2, only in this case, resistance when fluid is by bilateral device is just in most zone of reasonableness.
When connecting port 3-2 is circular, the shell length of bilateral device is 1.5-2.5 with the diameter proportion of connecting port 3-2：1；
The length of side of core plate 2-1 is 0.3-1.5 with the diameter proportion of connecting port 3-2:1.When connecting port 3-2 is quadrangle, bilateral device
The long side ratio of housing and connecting port 3-2 are 1.5-2.5：1；The length of side of core plate 2-1 and the long side ratio of connecting port 3-2 are 1-2:
1。
The specific operating mode of pipeline bilateral device is as follows：Fluid first passes around pipe joint 3, and pipe joint 3 is generally reducing shape
Formula is so alleviated or reduces resistance when fluid runs into bilateral device, then after pipe joint 3 with bilateral device internal partition 2
Trapezoidal plate 2-2 meets, and trapezoidal plate 2-2 has certain angle, plays the role of refluence, fluid enter after trapezoidal plate 2-2 by
The trapezoid cross section area that core plate 2-1 and trapezoidal plate 2-2 are formed, at this time the fluid in another direction enter core according to same principle
The cross-sectional area of plate 2-1 opposite sides and trapezoidal plate 2-2 compositions, has reached the condition that the fluid of two axial directions passes crosswise at this time.And
Trapezoid cross section area is not less than the sectional area of fluid Initial Entry connecting port 3-2 herein, that is, ensures by core plate 2-1 and same axial direction
The wind speed of trapezoid cross section 2-3 that is formed of trapezoidal plate 2-2 be not less than the section wind speed of connecting port 3-2, the dynamic pressure of such system
Lose small, while the horizontal sextant angle for ensureing trapezoidal plate 2-2 ensures that the coefficient of partial resistance of bilateral is small, just may be used between 30-60 degree
In most rational scope, to make the bilateral device pressure loss small the local resistance of bilateral device control, the pressure of system is distributed
It influences little.So bilateral device can solve the cross-cutting issue of pipeline and by the resistance of ducting increase of whole system too
It is more, wind turbine and water pump equal power device is made to be not required to do too big increase-volume, bilateral device is made to have wider array of application value in practical applications,
Also comply with energy saving design requirement.Fluid run into a symmetrical manner after core plate another connect with core plate 2-1 it is trapezoidal
Then plate 2-2 from pipe joint 3, flows out bilateral device, the fluid of two axial directions passes crosswise completion at this time.
As shown in figs. 10-12, with the PVC air hoses of a diameter of 300mm same wind turbine is selected to be tested, the pipeline of setting is double
Logical device is cut by the pipeline of the trapezoid cross section 2-3 areas that core plate 2-1 and same axial trapezoidal plate 2-2 are formed and diameter 300mm
Face ratio is 1.07:It is identical with other conditions when 1, the air hose of elbow bend is set to compare.It is found by comparing, bilateral device is set
Pipeline mean wind speed afterwards is 5.67m/s, and it is 5.53m/s to set the mean wind speed after elbow, it can be seen that, the pipe of bilateral device
Road resistance very little or even also smaller than common air hose component.In Practical Project, when running into pipeline monitor, then need by upper
Under return it is curved solve the problems, such as, Normal practice is elbow solution using 90 degree to pipeline when return curved up and down, it usually needs four 90
The elbow of degree, resistance are relatively large.And pipeline monitor can be solved the problems, such as using bilateral device, the increased resistance of ducting of institute is than one
90 degree of elbows are also small, so very big resistance can't be brought to increase to air-line system using bilateral device, actual application prospect is wide
It is general.
The present invention is in actual application, in addition to air hose, the water pipe of civil buildings intersect, for municipal pressure conduit,
The non-gravities such as oil pipeline, power conduit stream, the intersection-type collision of non-flammable explosive fluid line can be applied.
The structure of some specific embodiments of the invention is illustrated in a manner of word and description of the drawings above, and it is non-exhaustive
Nothing left is limited to concrete form described above.It should be pointed out that it for those skilled in the art, is not taking off
On the premise of from the principle of the invention, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the present invention's
Protection domain.
Claims (8)
1. a kind of pipeline bilateral device, including：Housing (1), internal partition (2) and pipe joint (3)；It is characterized in that：The housing
(1) top and bottom are octagonal top plate (1-1) and bottom plate (1-2), and the housing side sets four side plates (1-3) by institute
It states top plate (1-1) and the bottom plate (1-2) is vertically connected with, the four additional side of the housing and the pipe joint (3) are right
It connects, the side plate and the pipe joint are arranged at intervals；The shape to interface (3-1) that the pipe joint is docked with housing side
Shape is consistent with housing side shape, and the shape for the connecting port (3-2) that the pipe joint is docked with pipeline is consistent with pipe shape；
The internal partition (2) is placed in the housing, is made of core plate (2-1), trapezoidal plate (2-2) and set square (2-3), the core
Plate (2-1) is quadrangle and centrally located, and four sides connect four trapezoidal plates (2-2), wherein, two opposite trapezoidal plates
(2-2) is turned over, and is turned under other two opposite trapezoidal plate (2-2), turn over and under between the trapezoidal plate (2-2) that turns over by described three
Gusset (2-3) is connected.
2. pipeline bilateral device according to claim 1, which is characterized in that the section being made of trapezoidal plate and core plate is trapezoidal
Area however less than connecting port sectional area.
3. pipeline bilateral device according to claim 1 or 2, which is characterized in that it is described turn over, under the angle turned at 30 degree extremely
Between 60 degree.
4. pipeline bilateral device according to claim 1 or 2, which is characterized in that the pipe joint is reducing form or straight
Form of tubes.
5. pipeline bilateral device according to claim 1 or 2, which is characterized in that the shape of the side plate is quadrangle, described
The shape of housing side is quadrangle, and described is quadrangle to interface.
6. pipeline bilateral device according to claim 1 or 2, which is characterized in that the size of four pipe joints is unanimously or not
Unanimously.
7. pipeline bilateral device according to claim 1 or 2, which is characterized in that the internal partition is by two layers of skin-material (4)
It is made with intermediate insulating layer (5).
8. pipeline bilateral device according to claim 1 or 2, which is characterized in that the housing, internal partition and pipe joint one
It assembles and uses after body processing or parts processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830413.6A CN108050313B (en) | 2017-09-13 | 2017-09-13 | Pipeline bi-pass device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830413.6A CN108050313B (en) | 2017-09-13 | 2017-09-13 | Pipeline bi-pass device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108050313A true CN108050313A (en) | 2018-05-18 |
| CN108050313B CN108050313B (en) | 2021-08-06 |
Family
ID=62119339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710830413.6A Active CN108050313B (en) | 2017-09-13 | 2017-09-13 | Pipeline bi-pass device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050313B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089768A (en) * | 2000-09-14 | 2002-03-27 | Kubota Corp | Crossover fitting for piping |
| JP2002089753A (en) * | 2000-09-14 | 2002-03-27 | Kubota Corp | Pipe for cross piping |
| CN203082431U (en) * | 2013-02-05 | 2013-07-24 | 刘睿 | Four-way pipe connector |
| CN203549229U (en) * | 2013-11-22 | 2014-04-16 | 李华敏 | Cold water and hot water alternating parallel four-way pipe |
| CN203907091U (en) * | 2014-04-23 | 2014-10-29 | 云南承泰科技有限公司 | Parallel cross-connection conducting pipe fitting |
| CN207178957U (en) * | 2017-09-13 | 2018-04-03 | 北京华标环能科技有限公司 | Pipeline bilateral device |
-
2017
- 2017-09-13 CN CN201710830413.6A patent/CN108050313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089768A (en) * | 2000-09-14 | 2002-03-27 | Kubota Corp | Crossover fitting for piping |
| JP2002089753A (en) * | 2000-09-14 | 2002-03-27 | Kubota Corp | Pipe for cross piping |
| CN203082431U (en) * | 2013-02-05 | 2013-07-24 | 刘睿 | Four-way pipe connector |
| CN203549229U (en) * | 2013-11-22 | 2014-04-16 | 李华敏 | Cold water and hot water alternating parallel four-way pipe |
| CN203907091U (en) * | 2014-04-23 | 2014-10-29 | 云南承泰科技有限公司 | Parallel cross-connection conducting pipe fitting |
| CN207178957U (en) * | 2017-09-13 | 2018-04-03 | 北京华标环能科技有限公司 | Pipeline bilateral device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108050313B (en) | 2021-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207178957U (en) | Pipeline bilateral device | |
| CN203346963U (en) | Rotational flow double-vertical pipe water discharge system | |
| CN207778023U (en) | Pipeline structure body for equal-flow distribution of oil-gas-water multiphase medium | |
| CN108050313A (en) | Pipeline bilateral device | |
| CN203533054U (en) | pipe joint and fire engine water pump pipeline structure | |
| CN203346964U (en) | Single-riser drainage system | |
| CN203189912U (en) | Single-side fixing pipe fitting joint | |
| CN206861152U (en) | A kind of double inner tube formula polyurethane thermal pipe | |
| CN201925660U (en) | Pipeline expansion and retraction compensator | |
| CN203626625U (en) | Thermal insulated oil tube used for small-diameter oil well | |
| CN203517121U (en) | Three-dimensional different-diameter four-way pipe | |
| CN210154012U (en) | Corridor machinery smoke exhaust system capable of saving smoke exhaust machine room | |
| CN103174904B (en) | Balance type expansion joint of low flow resistance compact shape | |
| CN207796342U (en) | It is easily installed the feed pipe of docking | |
| CN203273168U (en) | Low flow resistance balanced type expansion joint with compact appearance | |
| CN104482317A (en) | Petroleum pipe | |
| PL73569Y1 (en) | Pipe tee | |
| CN205877551U (en) | Novel five -way downstream | |
| CN205537180U (en) | Steel construction hyperbola air cooling tower welded joint for truss | |
| CN219013658U (en) | Low flow resistance pipeline applied under limited space and large-angle bend condition | |
| CN207178949U (en) | A kind of enhanced fire-retardant composite pipe | |
| CN211624451U (en) | Compound double-deck FM fire prevention pipeline | |
| KR20140003940U (en) | Multi direction fitting block | |
| CN201003235Y (en) | Composite floor heating insulating board | |
| CN211398931U (en) | Double-clamping internal thread tee joint convenient to stack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ren Xiang Inventor before: Ren Xiang Inventor before: Hou Yuepeng |
|
| CB03 | Change of inventor or designer information | ||
| CB02 | Change of applicant information |
Address after: 100070 No. 42 Building, 12 District, 188 South Fourth Ring West Road, Fengtai District, Beijing Applicant after: Beijing Hua standard ring Energy Technology Co., Ltd. Address before: 102488 Floor 1-1009, No. 10, No. 225, Shuijun, Changyang Town, Fangshan District, Beijing Applicant before: Beijing Hua Biao Construction Engineering Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |