CN216240324U - Civil engineering is to pressing from both sides door structure - Google Patents
Civil engineering is to pressing from both sides door structure Download PDFInfo
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- CN216240324U CN216240324U CN202122827658.8U CN202122827658U CN216240324U CN 216240324 U CN216240324 U CN 216240324U CN 202122827658 U CN202122827658 U CN 202122827658U CN 216240324 U CN216240324 U CN 216240324U
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- Prior art keywords
- door
- anchoring
- door frame
- fixedly connected
- civil
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- Withdrawn - After Issue
Links
- 238000003825 pressing Methods 0.000 title claims description 5
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000004873 anchoring Methods 0.000 claims description 46
- 239000003063 flame retardant Substances 0.000 claims description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 description 10
- 239000004568 cement Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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- Special Wing (AREA)
Abstract
The utility model provides a civil construction butt-clamping door structure which comprises a door frame, wherein two door leaves are hinged to the inner side of the door frame, the inner parts of the door leaves are of hollow structures, fireproof fillers are filled in the door leaves, and handles are rotatably connected to two sides of any door leaf; the top parts of the two door leaves are fixedly connected with limiting components, and the other ends of the limiting components are fixedly connected with the cross beam at the top part of the door frame; the two door leaves are all penetrated and provided with observation ports, glass windows are fixedly connected in the observation ports, and sealing elements are arranged at the contact positions of the door frame and the door leaves. The civil construction butt-clamping door structure is characterized in that fireproof fillers are filled in the door leaves, so that the spread of fire can be effectively prevented, and the purpose of protecting the life and property safety of people is achieved.
Description
Technical Field
The utility model relates to the technical field of butt-clamping doors, in particular to a civil construction butt-clamping door structure.
Background
Civil engineering generally refers to civil engineering, and civil engineering refers to planning, building and maintaining of all basic construction related to water, soil and culture. General civil engineering projects include: house, road, water service, canal service, flood control engineering, traffic, etc.
In the construction in house, need a large amount of to pressing from both sides the door as the local insulated door such as corridor, but because current to pressing from both sides the door often for wooden, if meet the conflagration in the work progress or the house use, traditional wooden pair press from both sides the door and do not have fire behavior almost, and then can not play fine guard action to people's the security of the lives and property.
Therefore, it is desirable to design a civil double-door structure to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to achieve the purpose, the utility model provides the following scheme: a civil construction butt-clamping door structure comprises a door frame, wherein two door leaves are hinged to the inner side of the door frame, the inner parts of the door leaves are of a hollow structure, fireproof fillers are filled in the door leaves, and handles are rotatably connected to two sides of any one door leaf; the top parts of the two door leaves are fixedly connected with limiting components, and the other ends of the limiting components are fixedly connected with a cross beam at the top part of the door frame; the two door leaves are all penetrated and provided with observation ports, glass windows are fixedly connected in the observation ports, and sealing pieces are arranged at the contact positions of the door frame and the door leaves.
Preferably, the limiting assembly comprises a first hinged seat fixedly connected to the door frame, a second hinged seat fixedly connected to the door leaf, a first connecting rod hinged to the first hinged seat, a second connecting rod hinged to the end of the first connecting rod, and a second connecting rod hinged to the end of the second connecting rod.
Preferably, the equal rigid coupling of four outer walls of door frame has the mounting panel, the mounting panel is kept away from one side rigid coupling of door frame has a plurality of anchor subassemblies, the mounting panel is close to one side of door frame seted up a plurality of with the corresponding hole of pouring of anchor subassembly, pour the hole with the anchor subassembly intercommunication.
Preferably, the anchoring assembly comprises an anchoring plate fixedly connected with the mounting plate, one side of the anchoring plate, which is far away from the mounting plate, is fixedly connected with an anchoring cylinder, and the anchoring cylinder is communicated with the pouring hole; a plurality of anchoring holes are formed in the anchoring cylinder, a plurality of obliquely arranged anchoring thorns are fixedly connected between every two adjacent anchoring holes, the anchoring thorns face the anchoring plate, and the anchoring thorns are distributed in the vertical direction.
Preferably, the anchoring plate is provided with a pouring channel, the cross section of the pouring channel is in an isosceles trapezoid shape, the small-diameter end of the pouring channel is located on one side far away from the mounting plate, and the anchoring cylinder is communicated with the pouring hole through the pouring channel.
Preferably, the inner side wall of the door frame is provided with a step recess, the side wall of the door leaf contacting the door frame is fixedly connected with a step protrusion matched with the step recess, and the side wall of the step recess is fixedly connected with the sealing element.
Preferably, a plurality of partition plates are fixedly connected to the inner side of the door leaf, the door leaf is divided into a plurality of filling spaces by the partition plates, the cross sections of the filling spaces are regular hexagons, and the fireproof fillers are filled in the filling spaces.
Preferably, the fireproof filler comprises symmetrically arranged flame-retardant layers, a heat-insulating layer is arranged between the two flame-retardant layers, a fireproof layer is arranged between the flame-retardant layers and the heat-insulating layer, and two sides of the fireproof layer are fixedly connected with the flame-retardant layers and the heat-insulating layer respectively.
The utility model discloses the following technical effects:
1. the civil construction butt-clamping door structure is characterized in that fireproof fillers are filled in the door leaves, so that the spread of fire can be effectively prevented, and the purpose of protecting the life and property safety of people is achieved.
2. The civil engineering butt-clamping door has a simple structure and low manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of a civil counter-clamping door structure according to the utility model;
FIG. 2 is a cross-sectional view of a contact portion between a door frame and a door leaf according to the present invention;
FIG. 3 is a sectional view of the door leaf according to the present invention;
FIG. 4 is a schematic structural view of the fire-retardant packing of the present invention;
FIG. 5 is a schematic view of the connection structure of the mounting plate, the door frame and the anchoring assembly of the present invention;
FIG. 6 is a cross-sectional view of the anchor assembly of the present invention;
wherein, 1, a door frame; 2. a first hinge mount; 3. a second hinge mount; 4. a first link; 5. a second link; 6. a door leaf; 7. a handle; 8. a glass window; 10. a partition plate; 11. a fire-resistant filler; 12. a viewing port; 13. a seal member; 1101. a flame retardant layer; 1102. a fire barrier layer; 1103. a thermal insulation layer; 14. an anchor assembly; 15. mounting a plate; 16. pouring holes; 1401. an anchoring cylinder; 1402. an anchoring plate; 1403. pouring a channel; 1404. an anchoring hole; 1405. and (5) anchoring thorns.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-6, the utility model provides a civil construction butt-clamping door structure, which comprises a door frame 1, wherein two door leaves 6 are hinged on the inner side of the door frame 1, the inner parts of the door leaves 6 are hollow structures, fireproof fillers 11 are filled in the door leaves 6, and a handle 7 is rotatably connected on two sides of any door leaf 6; the tops of the two door leaves 6 are fixedly connected with limiting components, and the other ends of the limiting components are fixedly connected with a cross beam at the top of the door frame 1; an observation port 12 is formed in each of the two door leaves 6 in a penetrating manner, a glass window 8 is fixedly connected in each observation port 12, and a sealing piece 13 is arranged at the contact position of the door frame 1 and the door leaf 6. This application is through setting up fire prevention filler 11 in hollow door leaf 6, can effectually block stretching of intensity of a fire, ensures people's life safety.
Furthermore, the glass window 8 is double-layer heat-resistant glass, vacuum is formed between the two heat-resistant glass, the glass window 8 adopts double-layer heat-resistant glass to effectively block heat, and meanwhile, the sound insulation glass on the two sides is hollow, so that heat transfer can be better blocked.
Further, the total thickness of the door leaf 6 is 46.6mm-61.6 mm.
Furthermore, the outer surfaces of the door leaf 6 and the door frame 1 are coated with flame-retardant coatings, and the surface of the door leaf 6 is coated with the flame-retardant coatings, so that the fire can be effectively prevented from spreading.
Further, spacing subassembly includes the first articulated seat 2 of rigid coupling on door frame 1, and the rigid coupling has the articulated seat 3 of second on the door leaf 6, and it has first connecting rod 4 to articulate on the first articulated seat 2, and the end of first connecting rod 4 articulates there is second connecting rod 5, and 5 ends of second connecting rod are articulated with the articulated seat 3 of second. The structure of this part is not described in the prior art, and please refer to the door closer for the specific structure and the specific connection manner.
Further, four outer walls of door frame 1 are all fixedly connected with mounting panel 15, one side of mounting panel 15 far away from door frame 1 is fixedly connected with a plurality of anchor assemblies 14, one side of mounting panel 15 near door frame 1 is provided with a plurality of pouring holes 16 corresponding to anchor assemblies 14, and pouring holes 16 are communicated with anchor assemblies 14. The installation plate 15 is fixed in the door opening through a hole corresponding to the anchoring component 14 on a prefabricated door opening drill, and then the door frame 1 is welded on the installation plate 15, so that the connection between the door frame 1 and the door opening is firmer.
Further, the anchoring assembly 14 comprises an anchoring plate 1402 fixedly connected with the mounting plate 15, an anchoring cylinder 1401 is fixedly connected to one side of the anchoring plate 1402, which is far away from the mounting plate 15, and the anchoring cylinder 1401 is communicated with the pouring hole 16; a plurality of anchor holes 1404 are formed in the anchor cylinder 1401, a plurality of obliquely arranged anchor stabs 1405 are fixedly connected between every two adjacent anchor holes 1404, the anchor stabs 1405 face the anchor plate 1402, and the anchor stabs 1405 are distributed in the vertical direction. The mounting plate 15 is placed on the corresponding side wall of the door opening, cement is poured into the anchoring cylinder 1401 through the pouring hole 16, the cement enters the hole punched in the door opening along the anchoring hole 1404, the anchoring cylinder 1401 is more firmly connected with the solidified cement due to the existence of the anchoring thorn 1405 after the cement is solidified, the mounting plate 15 is more firmly connected with the door opening, and the door frame 1 is firmly connected with the door opening.
Further, a pouring channel 1403 is formed in the anchoring plate 1402, the cross section of the pouring channel 1403 is isosceles trapezoid, the small-diameter end of the pouring channel 1403 is located on one side far away from the mounting plate 15, and the anchoring cylinder 1401 is communicated with the pouring hole 16 through the pouring channel 1403. Through setting up pouring channel 1403 and making cement can be more smooth get into anchor cylinder 1401 in, and the cross-sectional area of pouring channel 1403 is isosceles triangle, and the path end of pouring channel 1403 is located the one side of keeping away from mounting panel 15 in addition, can effectively prevent to pour into the cement outflow of anchor cylinder 1401.
Further, the ladder is sunken all has been seted up to 1 inside wall of door frame, and the equal rigid coupling of lateral wall of door leaf 6 and 1 contact of door frame has the ladder arch with the sunken looks adaptation of ladder, and the equal rigid coupling of the sunken lateral wall of ladder has sealing member 13. The step recess is formed in the doorframe 1, the step protrusion is fixedly connected to the door leaf 6, and the sealing element 13 is fixedly connected to the step recess, so that the sealing performance between the door leaf 6 and the doorframe 1 can be guaranteed, and smoke is prevented from penetrating through a gap between the door leaf 6 and the doorframe 1 when a fire disaster occurs.
Further, the sealing element 13 is made of ethylene propylene diene monomer rubber which has good heat resistance and can ensure the sealing property between the door leaf 6 and the door frame 1 at high temperature.
Further, a plurality of partition plates 10 are fixedly connected to the inner side of the door leaf 6, the interior of the door leaf 6 is divided into a plurality of filling spaces by the partition plates 10, the cross sections of the filling spaces are regular hexagons, and fireproof fillers 11 are filled in the filling spaces. Set up a plurality of cross-sections that enclose by a plurality of baffles 10 in door leaf 6 and be regular hexagon's filling space, not only can avoid fire prevention filler 11 when the conflagration breaing out and wholly collapse because of high temperature, the fire prevention effect of door leaf 6 has been ensured, and baffle 10 can increase door leaf 6's intensity, effectively reduce door leaf 6 because the deformation that high temperature produced, and then guarantee that door leaf 6 can open smoothly, a plurality of cross-sections form the structure similar to the honeycomb for regular hexagon's filling space, can effectually save baffle 10's quantity, the weight of door leaf 6 has not only been alleviateed, and manufacturing cost has been practiced thrift.
Further, the fireproof filler 11 comprises flame retardant layers 1101 symmetrically arranged, a heat insulation layer 1103 is arranged between the two flame retardant layers 1101, a fireproof layer 1102 is arranged between each flame retardant layer 1101 and the heat insulation layer 1103, and two sides of the fireproof layer 1102 are fixedly connected with the flame retardant layers 1101 and the heat insulation layer 1103 respectively. The outermost side is provided with the flame retardant layer 1101, so that the fireproof filler 11 can be prevented from being ignited due to high temperature, the fireproof performance is deteriorated, the fireproof layer 1102 mainly protects the heat insulation layer 1103 in the middle, and the heat insulation layer 1103 can effectively block the high temperature in the fire.
Further, the fireproof layer 1102 is an aluminum silicate ceramic fiberboard, and the thickness of the fireproof layer 1102 is 15mm-20 mm. The novel light refractory material of the aluminum silicate fiber has the advantages of light volume weight, high temperature resistance, good thermal stability, low thermal conductivity, small thermal expansion, good heat-insulating property and the like, not only lightens the whole weight of the butt-clamping door, but also is not easy to thermally expand, effectively avoids the problem that the fireproof filler 11 is separated from dispersion due to thermal expansion, and effectively ensures the fireproof effect of the butt-clamping door.
Further, the flame-retardant layer 1101 is a flame-retardant polyurethane plate, and the thickness of the flame-retardant layer 1101 is 10mm-15 mm. The flame-retardant polyurethane has good thermosetting property, is not easy to melt and burn when heated, and effectively ensures the reliability of the fireproof filler 11 when heated.
Further, the heat insulation layer 1103 is made of glass fiber wool or polyurethane foam, and the thickness of the heat insulation layer 1103 is 20mm-25 mm. The glass fiber cotton and the polyurethane foam have good heat insulation performance, and can effectively block heat in fire.
Further, the door leaf 6 is made of steel plates, and the thickness of each steel plate is 0.8mm-1 mm. Door leaf 6 adopts the steel sheet to make, compares in traditional wooden door and can effectively block flame.
The specific implementation mode is as follows: the hole corresponding to the anchoring component 14 is drilled on the prefabricated door opening, the mounting plates 15 are fixedly connected to the door opening through cement, the two adjacent mounting plates 15 are welded, the door frame 1 is welded in the space surrounded by the four mounting plates 15 after welding, the door leaf 6 is mounted on the door frame 1 through hinges, and then the limiting component is mounted.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a civil engineering is to pressing from both sides door structure which characterized in that: the door comprises a door frame (1), wherein two door leaves (6) are hinged to the inner side of the door frame (1), the inner parts of the door leaves (6) are of hollow structures, fireproof fillers (11) are filled in the door leaves (6), and two sides of any one door leaf (6) are rotatably connected with handles (7); the tops of the two door leaves (6) are fixedly connected with limiting components, and the other ends of the limiting components are fixedly connected with a cross beam at the top of the door frame (1); two all run through on door leaf (6) and seted up viewing aperture (12), rigid coupling has glass window (8) in viewing aperture (12), just door frame (1) with door leaf (6) contact department is provided with sealing member (13).
2. The civil counter-clamping door structure according to claim 1, wherein: spacing subassembly includes the rigid coupling and is in first articulated seat (2) on door frame (1), the rigid coupling has articulated seat of second (3) on door leaf (6), it has first connecting rod (4) to articulate on first articulated seat (2), the end of first connecting rod (4) articulates there is second connecting rod (5), second connecting rod (5) terminal with articulated seat of second (3) are articulated.
3. The civil counter-clamping door structure according to claim 1, wherein: the equal rigid coupling of four outer walls of door frame (1) has mounting panel (15), mounting panel (15) are kept away from one side rigid coupling of door frame (1) has a plurality of anchor assemblies (14), mounting panel (15) are close to one side of door frame (1) seted up a plurality of with anchor assembly (14) corresponding hole (16) of pouring, pour hole (16) with anchor assembly (14) intercommunication.
4. A civil counter-clamping door structure according to claim 3, characterised in that: the anchoring assembly (14) comprises an anchoring plate (1402) fixedly connected with the mounting plate (15), an anchoring cylinder (1401) is fixedly connected to one side, away from the mounting plate (15), of the anchoring plate (1402), and the anchoring cylinder (1401) is communicated with the pouring hole (16); a plurality of anchoring holes (1404) are formed in the anchoring cylinder (1401), a plurality of obliquely arranged anchoring thorns (1405) are fixedly connected between every two adjacent anchoring holes (1404), the anchoring thorns (1405) face the anchoring plate (1402), and the anchoring thorns (1405) are distributed in the vertical direction.
5. The civil counter-clamping door structure of claim 4, wherein: a pouring channel (1403) is formed in the anchoring plate (1402), the section of the pouring channel (1403) is isosceles trapezoid, the small-diameter end of the pouring channel (1403) is located on one side far away from the mounting plate (15), and the anchoring cylinder (1401) is communicated with the pouring hole (16) through the pouring channel (1403).
6. The civil counter-clamping door structure according to claim 1, wherein: the door frame (1) inside wall has all been seted up the ladder sunken, door leaf (6) with the equal rigid coupling of door frame (1) contact's lateral wall have with the ladder is sunken the looks adaptation ladder protruding, the equal rigid coupling of ladder sunken lateral wall has sealing member (13).
7. The civil counter-clamping door structure according to claim 1, wherein: the fireproof door is characterized in that a plurality of partition plates (10) are fixedly connected to the inner side of the door leaf (6), the interior of the door leaf (6) is divided into a plurality of filling spaces by the partition plates (10), the cross sections of the filling spaces are regular hexagons, and fireproof fillers (11) are filled in the filling spaces.
8. The civil counter-clamping door structure according to claim 1, wherein: the fireproof filler (11) comprises flame-retardant layers (1101) which are symmetrically arranged, a heat-insulating layer (1103) is arranged between the flame-retardant layers (1101), the flame-retardant layers (1101) and the heat-insulating layer (1103) are both provided with fireproof layers (1102), and two sides of each fireproof layer (1102) are respectively fixedly connected with the flame-retardant layers (1101) and the heat-insulating layer (1103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827658.8U CN216240324U (en) | 2021-11-18 | 2021-11-18 | Civil engineering is to pressing from both sides door structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827658.8U CN216240324U (en) | 2021-11-18 | 2021-11-18 | Civil engineering is to pressing from both sides door structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216240324U true CN216240324U (en) | 2022-04-08 |
Family
ID=80945761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122827658.8U Withdrawn - After Issue CN216240324U (en) | 2021-11-18 | 2021-11-18 | Civil engineering is to pressing from both sides door structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216240324U (en) |
-
2021
- 2021-11-18 CN CN202122827658.8U patent/CN216240324U/en not_active Withdrawn - After Issue
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|---|---|---|---|
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240401 Address after: 230000 shishugang street, Feixi County, Hefei City, Anhui Province Patentee after: Hefei Dongmiao Construction Engineering Co.,Ltd. Country or region after: China Address before: 071000 aluminum factory dormitory, Qiyi Road West, Baoding City, Hebei Province Patentee before: Chen Xiaowei Country or region before: China Patentee before: Tian Sai |
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| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220408 Effective date of abandoning: 20240418 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20220408 Effective date of abandoning: 20240418 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |