CN211114480U - Roofing equipment base antiseep structure - Google Patents
Roofing equipment base antiseep structure Download PDFInfo
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- CN211114480U CN211114480U CN201921450878.XU CN201921450878U CN211114480U CN 211114480 U CN211114480 U CN 211114480U CN 201921450878 U CN201921450878 U CN 201921450878U CN 211114480 U CN211114480 U CN 211114480U
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- waterproof
- layer
- cement
- equipment base
- mortar layer
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- 239000010410 layer Substances 0.000 claims abstract description 168
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 83
- 239000004568 cement Substances 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000011247 coating layer Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000011433 polymer cement mortar Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004078 waterproofing Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The utility model relates to the technical field of equipment base waterproofing, in particular to an anti-leakage structure of a roofing equipment base; the roof comprises a roof and an equipment base, wherein a lug is arranged around the outer side edge of the upper part of the equipment base; a cement-based mortar layer is arranged on the wall of the lower part of the equipment base, and a waterproof additional layer is completely covered outside the cement-based mortar layer; the waterproof additional layer is completely covered with a waterproof roll material layer, the upper end of the waterproof roll material layer extends to the lower end face of the lug, and a sealing filling layer is arranged outside the joint of the upper end of the waterproof roll material layer and the lower end face of the lug; a cement-based waterproof mortar layer and a waterproof coating layer laid on the cement-based waterproof mortar layer and the lugs are arranged on the top of the equipment base and above the lugs; the technical problems that the corner of an equipment base existing in the prior art is more, the tension of the corner is larger, the operation is not easy, and the satisfactory effect cannot be achieved in the construction process are solved through the waterproof structure design.
Description
Technical Field
The utility model belongs to the technical field of the waterproof technique of equipment base and specifically relates to a roofing equipment base anti-seepage structure is related to.
Background
When building the roof, often pour the shaping with equipment base and roofing an organic whole, to the waterproofing problem of roofing base, often adopt waterproofing membrane to wrap up equipment base. However, because the corners of the equipment base are more and the tension of the corners is larger, the waterproof coiled material is often adopted separately in the construction process, the operation is not easy, and the satisfactory effect cannot be achieved, so that the equipment base has larger leakage hidden trouble. The existing specification GB50345-2012 "technical specification for roof engineering" does not have a concrete way to refer to regarding the waterproof way of the equipment foundation. In the flat roof building structure, the waterproof treatment method of the equipment base is an integral wrapping method, the full bonding effect is poor, and the hidden trouble of large leakage still exists.
Patent CN203320837U discloses equipment base antiseep structure, lays asphalt felt 5 as the waterproof layer in the reentrant corner department that polyphenyl thermos cup 3 and equipment base 10 formed, sets up modified asphalt waterproofing membrane on asphalt felt 5, and similarly, the operation is comparatively difficult, and the problem of infiltration may appear in the corner, has the potential safety hazard.
Therefore, to the above-mentioned problem the utility model discloses urgent need provides an equipment base with waterproof construction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an equipment base with waterproof construction, the corner of design in order to solve the equipment base that exists among the prior art through waterproof construction is more, and corner tension is great, often in the work progress, adopts waterproofing membrane alone, and difficult operation does not reach the technical problem of satisfied effect.
The utility model provides a roof equipment base anti-leakage structure, which comprises an equipment base vertically arranged on a roof, wherein a lug is arranged around the outer side edge of the upper part of the equipment base; a cement-based mortar layer is arranged on the wall of the lower part of the equipment base, the cement-based mortar layer extends downwards and completely covers the joint between the roof and the equipment base, and the outer side surface of the cement-based mortar layer is arranged in an arc shape; the waterproof additional layer is completely covered outside the cement-based mortar layer; the waterproof additional layer is completely covered with a waterproof roll material layer, the upper end of the waterproof roll material layer extends to the lower end face of the lug, the inner sides of the upper parts of the waterproof additional layer and the waterproof roll material layer are correspondingly attached to the wall of the upper part of the equipment base above the cement-based mortar layer, and the lower ends of the waterproof additional layer and the waterproof roll material layer extend downwards and are correspondingly attached to a roof outside the cement-based mortar layer; a sealing filling layer is arranged outside the joint of the upper end of the waterproof roll material layer and the lower end face of the lug; and a cement-based waterproof mortar layer and a waterproof coating layer laid on the cement-based waterproof mortar layer and the lug are arranged on the top of the equipment base and above the lug.
Further, the thickness of the lug is 100mm-150 mm.
Furthermore, the material of the lug is concrete.
Furthermore, the upper end surface of the cement-based waterproof mortar layer is obliquely arranged from the center to two sides; the thickness of the center of the cement-based waterproof mortar layer is 10mm-15 mm.
Furthermore, the inclination angle of the upper end face of the cement-based waterproof mortar layer is 2-5 degrees.
Furthermore, the material of the cement-based waterproof mortar layer is polymer cement mortar.
Furthermore, the radius of the outer side surface of the cement-based mortar layer is 50mm-100 mm.
Furthermore, the closing port of the waterproof roll material layer is fixedly connected with the equipment base through a detachable connecting piece.
Further, the thickness of the waterproof coating layer is 1.5mm-2 mm; the waterproof coating layer is made of acrylic waterproof coating.
Furthermore, the waterproof additional layer and the waterproof roll layer are both made of high polymer modified asphalt waterproof rolls. The utility model provides a pair of roofing equipment base seepage prevention structure compares with prior art and has following progress:
1. the utility model comprises an equipment base vertically arranged on the roof, and lugs are arranged around the outer side edge of the upper part of the equipment base; a cement-based mortar layer is arranged on the wall of the lower part of the equipment base, the cement-based mortar layer extends downwards and completely covers the joint between the roof and the equipment base, and the outer side surface of the cement-based mortar layer is arranged in an arc shape; the waterproof additional layer is completely covered outside the cement-based mortar layer; the waterproof additional layer is completely covered with a waterproof roll material layer, the upper end of the waterproof roll material layer extends to the lower end face of the lug, the inner sides of the upper parts of the waterproof additional layer and the waterproof roll material layer are correspondingly attached to the wall of the upper part of the equipment base above the cement-based mortar layer, and the lower ends of the waterproof additional layer and the waterproof roll material layer extend downwards and are correspondingly attached to a roof outside the cement-based mortar layer; a sealing filling layer is arranged outside the joint of the upper end of the waterproof roll material layer and the lower end face of the lug; a cement-based waterproof mortar layer and a waterproof coating layer laid on the cement-based waterproof mortar layer and the lugs are arranged on the top of the equipment base and above the lugs; the design that the radius of the outer side surface of the cement-based mortar layer is 50mm-100mm, the cement-based mortar layer is coated on the joint between the roof and the equipment base by adopting mortar, the outer surface of the cement-based mortar layer is subjected to fillet treatment, the outer side surface of the cement-based mortar layer is arranged in an arc shape, a certain thickness is ensured, the fillet is coated on the outer side of the cement-based mortar layer, the fillet coating treatment mainly plays a transition role, the influence of the cement-based mortar layer on the tension of the waterproof additional layer is reduced, and the tight connection of the waterproof additional layer with the roof and the equipment base is ensured; a waterproof roll layer is attached outside the waterproof additional layer to play a waterproof role; meanwhile, the convex lugs arranged on the peripheral wall of the upper end of the equipment base can extend water to the two sides of the equipment base, rainwater is prevented from being directly poured at the joint between the roof and the equipment base, the service time of the waterproof layer is prolonged, meanwhile, the design that the sealing filling layer is arranged at the joint between the upper end of the waterproof coiled material layer and the lower end face of the convex lugs ensures that gaps are formed between the upper end of the waterproof coiled material layer and the lower end face of the convex lugs, and rainwater is prevented from permeating; the design of the cement-based waterproof mortar layer and the waterproof coating layer effectively protects the top of the equipment base, prevents rainwater from eroding the top of the equipment base, and ensures the service life of the equipment base; the lug in this embodiment can set up the template simultaneously with the equipment base and pour, also can plant the muscle again after the equipment base is pour, set up the template and pour, and the material of lug is the same with the material of equipment base, convenient preparation.
2. The thickness of the lug in the utility model is 100mm-150 mm; the preferred thickness of this embodiment is 100mm, guarantees the distance to the rainwater is carried to avoid the rainwater to directly strike roofing and equipment base formation reentrant corner department.
3. The upper end surface of the cement-based waterproof mortar layer is inclined from the center to two sides; the thickness of the center of the cement-based waterproof mortar layer is 10-15 mm, so that the rainwater diversion effect can be realized, and the top surface of the equipment base is prevented from storing rainwater and corroding the equipment base.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the anti-leakage structure of the device base in the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Description of reference numerals:
1. a cement-based mortar layer; 2. a waterproof additional layer; 101. a roof; 102. an equipment base; 3. a waterproof roll layer; 4. a lug; 5. sealing the filling layer; 6. a cement-based waterproof mortar layer; 7. and (4) a waterproof coating layer.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the leakage-proof structure of the roofing equipment base in the present embodiment includes an equipment base 102 standing on a roof 101, and a lug 4 is provided around an outer side edge of an upper portion of the equipment base 102; a cement-based mortar layer 1 is arranged on the wall of the lower part of the equipment base 102, the cement-based mortar layer 1 extends downwards and completely covers the joint between the roof 101 and the equipment base 102, and the outer side surface of the cement-based mortar layer 1 is arranged in an arc shape; the waterproof additional layer 2 is completely covered outside the cement-based mortar layer 1; the waterproof additional layer 2 is completely covered with a waterproof roll material layer 3, the upper end of the waterproof roll material layer 3 extends to the lower end face of the lug 4, the inner sides of the upper parts of the waterproof additional layer 2 and the waterproof roll material layer 3 are correspondingly attached to the wall of the upper part of the equipment base 102 above the cement-based mortar layer 1, and the lower ends of the waterproof additional layer 2 and the waterproof roll material layer 3 extend downwards and are correspondingly attached to the roof 101 outside the cement-based mortar layer 1; a sealing filling layer 5 is arranged outside the joint of the upper end of the waterproof roll material layer 3 and the lower end face of the lug 4; a cement-based waterproof mortar layer 6 and a waterproof coating layer 7 laid on the cement-based waterproof mortar layer 6 and the lug 4 are arranged on the top of the equipment base 102 and above the lug 4; the radius of the outer side surface of the cement-based mortar layer 1 is 50mm-100 mm.
The utility model comprises an equipment base 102 vertically arranged on a roof 101, and lugs 4 are arranged around the outer side edge of the upper part of the equipment base 102; a cement-based mortar layer 1 is arranged on the wall of the lower part of the equipment base 102, the cement-based mortar layer 1 extends downwards and completely covers the joint between the roof 101 and the equipment base 102, and the outer side surface of the cement-based mortar layer 1 is arranged in an arc shape; the waterproof additional layer 2 is completely covered outside the cement-based mortar layer 1; the waterproof additional layer 2 is completely covered with a waterproof roll material layer 3, the upper end of the waterproof roll material layer 3 extends to the lower end face of the lug 4, the inner sides of the upper parts of the waterproof additional layer 2 and the waterproof roll material layer 3 are correspondingly attached to the wall of the upper part of the equipment base 102 above the cement-based mortar layer 1, and the lower ends of the waterproof additional layer 2 and the waterproof roll material layer 3 extend downwards and are correspondingly attached to the roof 101 outside the cement-based mortar layer 1; a sealing filling layer 5 is arranged outside the joint of the upper end of the waterproof roll material layer 3 and the lower end face of the lug 4; a cement-based waterproof mortar layer 6 and a waterproof coating layer 7 laid on the cement-based waterproof mortar layer 6 and the lug 4 are arranged on the top of the equipment base 102 and above the lug 4; the design that the radius of the outer side surface of the cement-based mortar layer 1 is 50mm-100mm, the cement-based mortar layer 1 is coated on the joint between the roof 101 and the equipment base 102 by adopting mortar, the outer surface of the cement-based mortar layer 1 is subjected to fillet treatment at the same time, the outer side surface of the cement-based mortar layer 1 is in arc arrangement, a certain thickness is ensured at the same time, the fillet coating treatment is mainly carried out on the outer side of the cement-based mortar layer 1, the fillet coating treatment mainly plays a transitional role, the influence of the cement-based mortar layer on the tension of the waterproof additional layer 2 is reduced, and the tight connection of the waterproof additional layer 2 with the roof 101 and the equipment base 102 is ensured; a waterproof roll material layer 3 is attached outside the waterproof additional layer 2 to play a waterproof role; meanwhile, the convex lugs 4 arranged on the peripheral wall of the upper end of the equipment base 102 can extend water to the two sides of the equipment base 102, rainwater is prevented from being directly poured to the joint between the roof 101 and the equipment base 102, the service time of the waterproof layer is prolonged, meanwhile, the sealing filling layer 5 is arranged at the joint between the upper end of the waterproof roll material layer 3 and the lower end face of the convex lugs 4, gaps are guaranteed to be formed between the upper end of the waterproof roll material layer 3 and the lower end face of the convex lugs 4, and rainwater is prevented from permeating; the design of the cement-based waterproof mortar layer 6 and the waterproof coating layer 7 effectively protects the top of the equipment base 102, prevents rainwater from eroding the top of the equipment base 102, and ensures the service life of the equipment base 102; the lug 4 in this embodiment may be formed by erecting a formwork together with the equipment base 102 and pouring, or by implanting a reinforcement and erecting a formwork after the equipment base 102 is poured, and the lug is made of the same material as the equipment base 102, which is convenient to prepare.
The thickness of the lug 4 in the utility model is 100mm-150 mm; the preferred thickness of this embodiment is 100mm to ensure a distance for rainwater to be transported, thereby avoiding rainwater from directly impacting the inside corner formed by the roof 101 and the equipment base 102.
The utility model provides a material of lug 4 is the concrete, and lug 4 can pour the shaping with equipment base 102 an organic whole, perhaps has prepared the back at equipment base 102, adopts the mode preparation lug 4 of pouring again after the bar planting sets up the template.
As shown in fig. 1 and 2, in the embodiment, the upper end surface of the cement-based waterproof mortar layer 6 is inclined from the center to two sides; the thickness of the center of the cement-based waterproof mortar layer 6 is 10mm-15 mm; the inclination angle of the upper end surface of the cement-based waterproof mortar layer 6 is 2-5 degrees.
The upper end surface of the cement-based waterproof mortar layer 6 is inclined from the center to two sides; the thickness of the center of the cement-based waterproof mortar layer 6 is 10mm-15mm, so that a rainwater diversion effect can be realized, rainwater is prevented from being accumulated on the top surface of the equipment base 102, and the equipment base 102 is prevented from being corroded; through the design that the inclination angle of the upper end surface of the cement-based waterproof mortar layer 6 is 2-5 degrees, the inclination angle of the upper end surface of the cement-based waterproof mortar layer 6 is preferably 2 degrees, and the rainwater diversion effect is ensured.
The utility model provides a cement base waterproof mortar layer 6's material is polymer cement mortar.
As shown in fig. 1, the receiving opening of the waterproof roll layer 3 in this embodiment is fixedly connected to the device base 102 through a detachable connector.
The utility model discloses a receiving mouth department on waterproofing membrane layer 3 is through the design that can dismantle connecting piece and equipment base 102 rigid coupling, further guarantees the receiving mouth department on waterproofing membrane layer 3 and equipment base 102's rigid coupling, guarantees water-proof effects.
The thickness of the waterproof coating layer 7 in the utility model is 1.5mm-2 mm; in the embodiment, the thickness of the waterproof coating layer 7 is preferably 2mm, so that the waterproof effect is ensured, the material is saved, and the cost is reduced; the waterproof coating layer 7 is made of acrylic waterproof coating, preferably acrylic waterproof coating which can be exposed.
The materials of the waterproof additional layer 2 and the waterproof coiled material layer 3 in the utility model are both high polymer modified asphalt waterproof coiled materials; the waterproof effect is good.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a roofing equipment base seepage prevention structure which characterized in that: comprises an equipment base (102) vertically arranged on a roof (101), and lugs (4) are arranged around the outer side edge of the upper part of the equipment base (102); a cement-based mortar layer (1) is arranged on the wall of the lower part of the equipment base (102), the cement-based mortar layer (1) extends downwards and completely covers the joint between the roof (101) and the equipment base (102), and the outer side surface of the cement-based mortar layer (1) is arranged in an arc shape; the waterproof additional layer (2) is completely covered outside the cement-based mortar layer (1); the waterproof roll layer (3) is completely covered outside the waterproof additional layer (2), the upper end of the waterproof roll layer (3) extends to the lower end face of the lug (4), the inner sides of the upper parts of the waterproof additional layer (2) and the waterproof roll layer (3) are correspondingly attached to the wall of the upper part of the equipment base (102) above the cement-based mortar layer (1), the lower ends of the waterproof additional layer (2) and the waterproof roll layer (3) extend downwards and are correspondingly attached to the roof (101) outside the cement-based mortar layer (1); a sealing filling layer (5) is arranged outside the joint of the upper end of the waterproof coil layer (3) and the lower end face of the lug (4); and a cement-based waterproof mortar layer (6) and a waterproof coating layer (7) laid on the cement-based waterproof mortar layer (6) and the lug (4) are arranged on the top of the equipment base (102) and above the lug (4).
2. The equipment foundation leak-prevention structure of claim 1, wherein: the thickness of the lug (4) is 100mm-150 mm.
3. The equipment foundation leak-prevention structure of claim 2, wherein: the material of the lug (4) is concrete.
4. The equipment foundation leak-prevention structure of claim 3, wherein: the upper end surface of the cement-based waterproof mortar layer (6) is obliquely arranged from the center to two sides; the thickness of the center of the cement-based waterproof mortar layer (6) is 10mm-15 mm.
5. The equipment foundation leak-proof structure of claim 4, wherein: the inclination angle of the upper end surface of the cement-based waterproof mortar layer (6) is 2-5 degrees.
6. The equipment foundation leak-prevention structure of claim 5, wherein: the cement-based waterproof mortar layer (6) is made of polymer cement mortar.
7. The equipment base leakage prevention structure according to any one of claims 1 to 6, wherein: the radius of the outer side surface of the cement-based mortar layer (1) is 50mm-100 mm.
8. The equipment foundation leak-prevention structure of claim 7, wherein: the closing port of the waterproof roll material layer (3) is fixedly connected with the equipment base (102) through a detachable connecting piece.
9. The apparatus base leakage prevention structure of claim 8, wherein: the thickness of the waterproof coating layer (7) is 1.5mm-2 mm; the waterproof coating layer (7) is made of acrylic waterproof coating.
10. The equipment foundation leak-prevention structure of claim 9, wherein: the waterproof additional layer (2) and the waterproof roll material layer (3) are both made of high polymer modified asphalt waterproof rolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450878.XU CN211114480U (en) | 2019-08-31 | 2019-08-31 | Roofing equipment base antiseep structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450878.XU CN211114480U (en) | 2019-08-31 | 2019-08-31 | Roofing equipment base antiseep structure |
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| Publication Number | Publication Date |
|---|---|
| CN211114480U true CN211114480U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921450878.XU Active CN211114480U (en) | 2019-08-31 | 2019-08-31 | Roofing equipment base antiseep structure |
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| Country | Link |
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| CN (1) | CN211114480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338551A (en) * | 2020-09-30 | 2021-09-03 | 中国建筑第二工程局有限公司 | Steel structure roof equipment supporting system and construction method |
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2019
- 2019-08-31 CN CN201921450878.XU patent/CN211114480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338551A (en) * | 2020-09-30 | 2021-09-03 | 中国建筑第二工程局有限公司 | Steel structure roof equipment supporting system and construction method |
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Effective date of registration: 20240710 Address after: 101300 Room 102, 1st Floor, Building 5, Yard A2, Shaling Section, Shunping Road, Shunyi District, Beijing Patentee after: Beijing Hongtong Engineering Survey Co.,Ltd. Country or region after: China Address before: 101309 Sha Ling section 2, Shunping Road, Shunyi District, Beijing Patentee before: BEIJING ORIENTAL YUHONG WATERPROOF ENGINEERING Co.,Ltd. Country or region before: China |