CN110872893B - Exhaust system between roofing layer - Google Patents
Exhaust system between roofing layer Download PDFInfo
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- CN110872893B CN110872893B CN201911228477.4A CN201911228477A CN110872893B CN 110872893 B CN110872893 B CN 110872893B CN 201911228477 A CN201911228477 A CN 201911228477A CN 110872893 B CN110872893 B CN 110872893B
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- roof
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- 239000010410 layer Substances 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000003651 drinking water Substances 0.000 claims abstract description 17
- 235000020188 drinking water Nutrition 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims description 20
- 239000011241 protective layer Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 238000013022 venting Methods 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 239000011229 interlayer Substances 0.000 abstract description 5
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000004078 waterproofing Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/17—Ventilation of roof coverings not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a roof interlayer exhaust system, which comprises: the vacuum cover is covered on the exhaust hole of the roof layer and is provided with an exhaust port and a water outlet; one end of the exhaust pipe is connected with the exhaust port; first drinking-water pipe, first drinking-water pipe set up in the exhaust hole, and the one end of first drinking-water pipe extends to the bottom in exhaust hole, and the other end and outlet connection. The principle of low-pressure liquefaction of gas is utilized to quickly and efficiently extract water vapor between roof layers. The water vapor discharge time between the roofing layer has been reduced, has avoided leading to a large amount of infiltration of layer steam because of the construction of overcast and rainy weather, has reduced the risk of waterproofing membrane fracture. The service life of the roof is prolonged, and the quality of building construction is guaranteed.
Description
Technical Field
The invention relates to the field of roof waterproof systems, in particular to a roof interlayer exhaust system.
Background
The roof layer is interface hierarchical structure, generally includes the protective layer that sets up from top to bottom, heat preservation, waterproof layer and structural layer, and this kind of structure forms steam easily between each layer structure, if do not make steam in time discharge effectively, leads to the moisture to be airtight under the waterproof layer easily, in case temperature is higher, especially in hot summer, the moisture evaporates, volume expansion, the waterproof layer will appear the swell phenomenon, arouse the fracture of waterproof layer, the damage, cause the roofing seepage water, long-term accumulation will lead to heat preservation and water-proof effects to reduce or even lose.
The current common solution is to arrange exhaust holes and install exhaust components on the roof layer, and evaporate the water vapor between layers through the high temperature of the natural environment to naturally exhaust the water vapor, which has the disadvantages of long passive exhaust period and large influence of the weather environment.
Therefore, need provide an exhaust system between roofing layer, can not receive weather environment's influence, can be fast effectual discharge roofing moisture between each layer, improve the service life of each layer structure of roofing.
Disclosure of Invention
The invention aims to provide a roof interlayer exhaust system, which reduces the time for discharging water vapor between roof layers and prolongs the service life of a roof structure.
In order to achieve the above object, the present invention provides an exhaust system between roof layers, comprising: the vacuum cover is covered on the exhaust hole of the roof layer and is provided with an exhaust port and a water outlet;
one end of the exhaust pipe is connected with the exhaust port;
first drinking-water pipe, first drinking-water pipe set up in the exhaust hole, the one end of first drinking-water pipe extends to the bottom in exhaust hole, the other end with the outlet connection.
Preferably, the water pump is connected with the water outlet through a second water pumping pipe.
Preferably, the water pumping device further comprises a ball valve, and the ball valve is arranged on the second water pumping pipe.
Preferably, the device further comprises a vacuum pump, and the other end of the exhaust pipe is connected with the vacuum pump.
Preferably, the roof layer sequentially comprises a protective layer, a heat insulation layer, a waterproof layer and a structural layer from top to bottom, and the exhaust holes are vertically formed in the roof layer and penetrate through the protective layer, the heat insulation layer, the waterproof layer and the structural layer.
Preferably, the vacuum hood is cylindrical and comprises an annular side wall and a top wall connected to the top of the annular side wall, and the exhaust port and the water discharge port are arranged on the top wall.
Preferably, the bottom edge of the vacuum hood is provided with an annular sealing edge extending horizontally outwards.
Preferably, the contact part of the annular sealing edge and the roof layer is filled with a sealant.
Preferably, still include and fill up the blank board, fill up the blank board set up in the bottom in exhaust hole, the lower surface that fills up the blank board is equipped with the bellying, the middle part that fills up the blank board is equipped with the bellied water drainage mouth that makes progress, be equipped with the through-hole in the water drainage mouth, first drinking-water pipe with the water drainage mouth is connected.
Preferably, the convex parts are uniformly distributed on the lower surface of the hollow backing plate.
The invention has the beneficial effects that: utilize vacuum cover and blast pipe to make roofing form the low pressure environment between each layer, steam condenses into water more easily under low pressure environment, the water of condensing between the messenger roofing layer condenses to the blast hole rapidly, unnecessary air in the blast hole is taken out to the exhaust tube, take out the water from the gathering through first drinking-water pipe, the steam discharge time between the roofing layer has been reduced, avoided leading to the infiltration of steam between the layer in a large number because of overcast and rainy weather construction, guarantee the heat preservation water-proof effects of heat preservation and waterproof layer between the roofing layer, the service life of extension roofing structure, guarantee the quality of construction.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings. Wherein like reference numerals generally represent like parts throughout the exemplary embodiments.
Fig. 1 shows a schematic structural diagram of an inter-floor exhaust system in one embodiment of the present invention.
Figure 2 shows a schematic view of the operation of an opening ball valve of an inter-floor venting system in one embodiment of the invention.
Figure 3 shows a schematic view of the operation of a shut-off ball valve of an inter-floor venting system in one embodiment of the invention.
Description of reference numerals:
1. an air exhaust pipe; 2. a second pumping pipe; 3. a first pagoda joint; 4. a ball valve; 5. a vacuum hood; 6. a protective layer; 7. a heat-insulating layer; 8. a waterproof layer; 9. a structural layer; 10. a roof layer; 11. a blank plate is padded; 12. a first pumping pipe; 13. a gas joint; 14. a handle; 15. draining pump; 16. a vacuum pump; 17. an annular sealing edge; 18. an exhaust hole; 19. a second pagoda joint; 20. the third pagoda connects.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a roof interlayer exhaust system, which comprises:
the vacuum cover is covered on the exhaust hole of the roof layer and is provided with an exhaust port and a water outlet; one end of the exhaust pipe is connected with the exhaust port; first drinking-water pipe, first drinking-water pipe set up in the exhaust hole, and the one end of first drinking-water pipe extends to the bottom in exhaust hole, and the other end and outlet connection.
Make roofing form the low pressure environment between each layer through vacuum hood and blast pipe, steam condenses into water more easily under low pressure environment, make the water of condensing between the roofing gather in the blast hole, unnecessary air is taken out to the exhaust tube, first drinking-water pipe extends to the bottom in exhaust hole, the water of gathering is taken out away from to the first drinking-water pipe of rethread, the passive exhaust of evaporating the steam with original natural temperature is changed into initiative exhaust, improve the efficiency of discharging steam between the roofing, the initiative is handled steam between the roofing, and discharge, reduce the risk of waterproofing membrane fracture, improve the heat preservation effect of heat preservation, the service life of each layer of extension roofing, guarantee construction's quality.
As an example, the vacuum cover is made of transparent materials, so that the liquid level condition in the exhaust hole can be observed conveniently when the system is used.
Preferably, the drainage system further comprises a drainage pump, the drainage pump is connected with the drainage port through a second drainage pipe, and the drainage pump is used for draining water condensed and gathered in the drainage hole, so that water vapor among layers of the roof is thoroughly drained.
The air exhaust pipe is connected with the vacuum pump through the other end of the air exhaust pipe, a low-pressure environment is formed between the roof layers through the vacuum pump and the vacuum cover, moisture and steam of the heat insulation layer, the waterproof layer and the structural layer are gathered to the air exhaust hole, and are liquefied and condensed into water in the low-pressure environment to exhaust air.
As preferred scheme, still include the ball valve, the ball valve sets up on the second drinking tube.
When the device is used, the ball valve on the second water pumping pipe is closed firstly, so that the phenomenon that partial gas enters the exhaust hole through the drainage pump when the roof layer is vacuumized is avoided, and the vacuumizing effect is influenced; when more condensed water is collected in the exhaust hole, the vacuum pump is closed, the ball valve is opened, and the water pump is started to pump water.
As the preferred scheme, the roof layer includes protective layer, heat preservation, waterproof layer, structural layer from last to down in proper order, and the exhaust hole sets up in the roof layer perpendicularly to pass protective layer, heat preservation, waterproof layer (8), structural layer, the gathering in the exhaust hole after the moisture condensation between each layer of being convenient for, avoid the exhaust hole slope and make the condensate flow flee back in each interlayer.
Preferably, the vacuum hood is cylindrical and comprises an annular side wall and a top wall connected to the top of the annular side wall, and the exhaust port and the water discharge port are arranged on the top wall.
Specifically, the size of the vacuum cover is larger than that of the exhaust hole, the vacuum cover completely covers the exhaust hole, and the exhaust pipe, the first water pumping pipe and the second water pumping pipe are sequentially connected to the exhaust hole and the water outlet in the top wall of the vacuum cover.
As the preferred scheme, the bottom edge of vacuum hood is equipped with the annular sealing edge that extends outwards of level, is favorable to the surface laminating of vacuum hood and roofing, avoids exhaust hole gas leakage to leak water, guarantees the low pressure environment in the exhaust hole when exhausting the drainage.
Preferably, the contact part of the annular sealing edge and the roof layer is filled with a sealant.
As an example, the vacuum cover is aligned with the exhaust hole, covers the exhaust hole, is attached to a protective layer of a roof, and is coated with a sealant at the position where the annular sealing edge is in contact with the protective layer and is filled around the annular sealing edge to avoid air leakage and water leakage.
As an example, the sealant can be a quick-drying type plugging agent, so that the sealing effect is ensured, and the sealing efficiency is improved.
As preferred scheme, still including filling up the blank board, fill up the blank board and set up in the bottom in exhaust hole, fill up the lower surface of blank board and be equipped with the bellied drain tap that makes progress, fill up the middle part of blank board, be equipped with the through-hole in the drain tap, first drinking-water pipe is connected with the drain tap.
Specifically, when exhaust hole evacuation, in the exhaust hole also can be gathered to impurity such as rubble granule between each layer of roofing, fill up the bellying of empty board and the bottom contact in exhaust hole, rubble granule gathering is in the lower part of filling up empty board, and the water drainage nozzle of filling up empty board has certain distance with the bottom in exhaust hole, inhales the rubble granule when avoiding the drain pump to draw water, influences the life of water pump.
As preferred scheme, bellying evenly distributed in the lower surface of filling up the cavity board makes the rubble granule evenly gather in the recess between the bellying of the lower part of filling up the cavity board, fills up the cavity board level and contacts with the bottom of wash port, improves drainage efficiency.
Examples
Fig. 1 shows a schematic structural diagram of an inter-roof venting system in one embodiment of the invention, fig. 2 shows a schematic operation diagram of an opening ball valve of the inter-roof venting system in one embodiment of the invention, and fig. 3 shows a schematic operation diagram of a closing ball valve of the inter-roof venting system in one embodiment of the invention.
As shown in fig. 1, the exhaust system between roof layers of the present embodiment includes: the method comprises the following steps: the vacuum cover 5, the vacuum cover 5 is covered on the air vent 18 of the roof layer 10, the vacuum cover 5 has air vent and water outlet; one end of the exhaust pipe 1 is connected with the exhaust port; the first water pumping pipe 12 is arranged in the exhaust hole 18, one end of the first water pumping pipe 12 extends to the bottom of the exhaust hole 18, and the other end of the first water pumping pipe is connected with the water outlet. The water pump 15 is further included, and the water pump 15 is connected with the water outlet through the second water pumping pipe 2. Still include ball valve 4, ball valve 4 sets up on second drinking-water pipe 2. The vacuum pump 16 is further included, and the other end of the exhaust tube 1 is connected with the vacuum pump 16.
The roof layer 10 sequentially comprises a protective layer 6, a heat-insulating layer 7, a waterproof layer 8 and a structural layer 9 from top to bottom, and the exhaust holes 18 are vertically arranged in the roof layer 10 and penetrate through the protective layer 6, the heat-insulating layer 7, the waterproof layer 8 and the structural layer 9. The vacuum cover 5 is cylindrical and comprises an annular side wall and a top wall connected to the top of the annular side wall, and an exhaust port and a water outlet are arranged on the top wall. The bottom edge of the vacuum hood 5 is provided with a horizontally outwardly extending annular sealing rim 17. The contact part of the annular sealing edge 17 and the roof layer 10 is filled with sealant. Still including filling up blank board 11, fill up blank board 11 and set up in the bottom of exhaust hole 18, the lower surface that fills up blank board 11 is equipped with the bellying, and the middle part that fills up blank board 11 is equipped with the bellied water drainage mouth that makes progress, is equipped with the through-hole in the water drainage mouth, and first drinking-water pipe 12 is connected with the water drainage mouth. The raised portions are uniformly distributed on the lower surface of the blanking plate 11.
When the exhaust system between roof layers is installed, the hollow cushion plate 11 is firstly placed at the bottom of the exhaust hole 18, and the convex part faces downwards. And a first water pumping pipe 12 is arranged, a first pagoda joint 3 on the connecting pad hollow plate 11 and a second pagoda joint 19 on the vacuum cover 5 are connected. The ball valve 4 is arranged on the second water pumping pipe 2 on the vacuum cover 5, and a second pagoda joint 19 is arranged at one end of the ball valve 4. The second pumping pipe 2 is connected to the third pagoda adapter 20 and the drain pump 15. The vacuum cover 5 is aligned with the exhaust hole 18 and is attached to the protective layer 6 of the roof 10, the periphery contacting with the protective layer 6 is filled with and smeared with a quick-drying type plugging agent, the contact part of the vacuum cover 5 and the protective layer 6 is ensured to be air-tight and water-tight, and after the plugging agent is dried, an air suction pipe 1 is used for connecting an air joint 13 of an exhaust port of the vacuum cover 5 and a vacuum pump 16.
As shown in figure 2, when the system is used, the ball valve 4 needs to be closed, and the contact part of the vacuum cover 5 and the protective layer 6 is filled with quick-drying type plugging agent. The vacuum pump 16 is turned on first, and moisture and steam of the insulating layer 7, the waterproof layer 8 and the structural layer 9 are gathered to the exhaust hole 18, arrows in fig. 2 are gas flowing directions, and are liquefied into water in a low pressure environment. As shown in fig. 3, when the water amount at the bottom of the exhaust hole 18 is large, the vacuum pump 16 is turned off, the ball valve 4 is opened, the drain pump 15 is turned on to start pumping water, the arrow direction in fig. 3 is the flow direction of the condensed water, the ball valve 4 is turned off after pumping water, the above operations are repeated for several times until the water in the exhaust hole 18 can not be condensed into a large amount of water liquid.
The system changes the original passive exhaust into the active exhaust process between the roof layers, and utilizes the principle of low-pressure liquefaction of gas to quickly and efficiently extract water vapor between the roof layers. The water vapor discharge time between the roofing layer has been reduced, has avoided leading to a large amount of infiltration of layer steam because of the construction of overcast and rainy weather, has reduced the risk of waterproofing membrane fracture. The service life of the roof is prolonged, and the quality of building construction is guaranteed.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (9)
1. An inter-floor roofing exhaust system comprising:
the vacuum cover (5) is covered on the exhaust hole (18) of the roof layer (10), and the vacuum cover (5) is provided with an exhaust port and a water outlet;
the exhaust pipe (1), one end of the exhaust pipe (1) is connected with the exhaust port;
the first water pumping pipe (12) is arranged in the exhaust hole (18), one end of the first water pumping pipe (12) extends to the bottom of the exhaust hole (18), and the other end of the first water pumping pipe is connected with the water outlet;
fill up bare board (11), fill up bare board (11) set up in the bottom of exhaust hole (18), the lower surface that fills up bare board (11) is equipped with the bellying, the middle part that fills up bare board (11) is equipped with the bellied water drainage nozzle that makes progress, be equipped with the through-hole in the water drainage nozzle, first drinking-water pipe (12) with the water drainage nozzle is connected.
2. Inter-floor air venting system according to claim 1, further comprising a drain pump (15), the drain pump (15) being connected to the drain opening by a second suction pipe (2).
3. Inter-floor exhaust system according to claim 2, characterized in that it further comprises a ball valve (4), said ball valve (4) being arranged on said second suction pipe (2).
4. The system for exhausting between roof layers according to claim 1, characterized by further comprising a vacuum pump (16), wherein the other end of the exhaust pipe (1) is connected with the vacuum pump (16).
5. An inter-roofing exhaust system according to claim 1, wherein the roofing layer (10) comprises, from top to bottom, a protective layer (6), an insulating layer (7), a waterproof layer (8), and a structural layer (9), and the exhaust holes (18) are vertically arranged in the roofing layer (10) and penetrate through the protective layer (6), the insulating layer (7), the waterproof layer (8), and the structural layer (9).
6. Inter-floor air-bleeding system according to claim 1, characterised in that the vacuum hood (5) is cylindrical and comprises an annular side wall and a top wall connected to the top of the annular side wall, the air-bleeding opening and the water-bleeding opening being provided in the top wall.
7. Inter-floor air-venting system according to claim 6, characterized in that the bottom edge of the vacuum hood (5) is provided with a horizontally outwardly extending annular sealing edge (17).
8. An inter-roofing air discharge system according to claim 7, characterized in that the contact of the annular sealing edge (17) with the roofing (10) is filled with a sealant.
9. Inter-floor air-bleeding system according to claim 1, characterised in that the raised portions are uniformly distributed on the lower surface of the blanking panel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228477.4A CN110872893B (en) | 2019-12-04 | 2019-12-04 | Exhaust system between roofing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228477.4A CN110872893B (en) | 2019-12-04 | 2019-12-04 | Exhaust system between roofing layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110872893A CN110872893A (en) | 2020-03-10 |
| CN110872893B true CN110872893B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911228477.4A Active CN110872893B (en) | 2019-12-04 | 2019-12-04 | Exhaust system between roofing layer |
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| CN (1) | CN110872893B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204252415U (en) * | 2014-11-24 | 2015-04-08 | 中交第一公路工程局有限公司 | A kind of roof heat insulation sloping layer water structure |
| US10060641B2 (en) * | 2015-02-25 | 2018-08-28 | Dri-Eaz Products, Inc. | Systems and methods for drying roofs |
| CN205242875U (en) * | 2015-12-04 | 2016-05-18 | 北京中建友建筑材料有限公司 | A hydrofuge integrated system that falls into water for making somebody a mere figurehead formula roofing |
| CN205224445U (en) * | 2015-12-04 | 2016-05-11 | 北京中建友建筑材料有限公司 | Hydrofuge of can bleeding automatically integrated system that falls into water |
| CN205531070U (en) * | 2016-04-12 | 2016-08-31 | 大同泰瑞集团建设有限公司 | High -efficient detection device of roofing exhaust passage |
| US10219663B2 (en) * | 2016-07-25 | 2019-03-05 | Samuel Dale Fox | Vacuum-assisted-pumping system and method |
| CN117803149A (en) * | 2019-07-11 | 2024-04-02 | 中交一公局集团有限公司 | Construction dehumidifying method and dehumidifying device for roof comprising waterproof layer |
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2019
- 2019-12-04 CN CN201911228477.4A patent/CN110872893B/en active Active
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Address after: 518000 201-212, building 11, Jinxiu Dadi, 121 hudipai, songyuanxia community, Guanhu street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Dongfang Yuhong Construction Robot Co.,Ltd. Country or region after: China Address before: 518000 201-212, building 11, Jinxiu Dadi, 121 hudipai, songyuanxia community, Guanhu street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Dongfang Yuhong Intelligent Equipment Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240515 Address after: 101309 Sha Ling section 2, Shunping Road, Shunyi District, Beijing Patentee after: BEIJING ORIENTAL YUHONG WATERPROOF TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 518000 201-212, building 11, Jinxiu Dadi, 121 hudipai, songyuanxia community, Guanhu street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Dongfang Yuhong Construction Robot Co.,Ltd. Country or region before: China |