CN211818175U - A interim safety device of assembled for standing-seam crimping roofing - Google Patents
A interim safety device of assembled for standing-seam crimping roofing Download PDFInfo
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- CN211818175U CN211818175U CN201922245519.7U CN201922245519U CN211818175U CN 211818175 U CN211818175 U CN 211818175U CN 201922245519 U CN201922245519 U CN 201922245519U CN 211818175 U CN211818175 U CN 211818175U
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Abstract
The utility model provides an assembled temporary safety device for a vertical serging roof, which consists of two fixing frames which are parallel to each other; each fixing frame comprises fixing components which are sequentially arranged along the same straight line; two adjacent fixing components are fixedly connected through a steel wire rope or a steel pipe; a plurality of fixing assemblies are sequentially arranged and installed on the plate rib top protrusions of the standing-seam crimping occlusal roof. A interim safety device of assembled for standing-seam crimping roofing, solved standing-seam crimping roof boarding safety protection and be difficult to set up, the difficult problem that workman's safety rope does not have the node and hangs.
Description
Technical Field
The utility model belongs to building engineering steel construction roofing construction field especially relates to an interim safety device of assembled for standing-seam crimping roofing.
Background
In recent years, due to continuous innovation and development of metal plate roofs, a plurality of steel structure buildings with large roof building areas, such as supermarkets, factories, gymnasiums and the like, increase year by year. The vertical lock seaming roof system is always the main design flow of metal roofs in Europe and America, and is widely applied at home at present.
When the roof needs to be maintained or equipment such as a photovoltaic bracket and ventilation equipment is installed, workers need to operate on the roof, and the operation workers wear safety belts to be hung on safety steel wire ropes to ensure construction safety as the operation belongs to high-altitude operation and generally ensures construction safety; when equipment such as a photovoltaic bracket and ventilation is maintained or installed on a roof, generally after the roof is constructed, the safety device is difficult to be effectively connected with a main structure, the roof is protected safely without connection, and the safety steel wire rope is usually not fixed in position; if a scaffold commonly used in construction is used as a safety channel, roof plates are easily damaged by fixing modes such as screws and rivets, and then a roof waterproof system is damaged; in actual construction, the condition that workers do not have safety protection measures to directly operate on a roof often exists, safety accidents happen occasionally, and the safety problems trouble construction enterprises.
Disclosure of Invention
In view of this, the utility model aims at providing an interim safety device of assembled for standing-seam crimping roofing to solve the problem that standing-seam crimping roofing structure later stage roofing construction guaranteed the operation personnel safety construction. The connecting piece through interim safety device is fixed with roof die mould metal ribbed slab top outstanding both sides, can form interim escape way on the roofing, also can provide the hanging point for construction operation safety rope, is applicable to the safe interim protection of various vertical serging roofs.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an assembled temporary safety device for standing-seam crimping roofing, its characterized in that: consists of two fixing frames which are parallel to each other; each fixing frame comprises fixing components which are sequentially arranged along the same straight line; two adjacent fixing components are fixedly connected through a steel wire rope; a plurality of fixing components are sequentially arranged and installed on the plate rib top protrusions of the vertical overlock engaged roof;
each fixing component consists of a base, a connecting steel pipe, a connecting rod and a connecting piece; the connecting steel pipe is fixedly arranged in the middle of the base; the lower end of the connecting rod is inserted into the connecting steel pipe, and the connecting rod and the connecting steel pipe are fixed through screws; a plurality of connecting rings are fixedly arranged on the connecting rod; two ends of the steel wire rope are respectively fixed on the connecting rings of two adjacent fixing components; four connecting pieces are fixedly connected below the base; the lower part of the connecting piece is fixed with a plate rib top protrusion of the vertical lock seaming roofing through a screw.
Further, the base is formed by assembling galvanized flat iron and angle steel; fixedly connecting the middle part of the galvanized flat iron with the middle part of the angle steel through a screw; the lower end of the connecting steel pipe is fixedly arranged in the middle of the angle steel; wherein the two connecting pieces are respectively and fixedly arranged at two ends of the galvanized flat iron; and the other two connecting pieces are respectively and fixedly arranged at two ends of the angle steel.
Further, a screw is fixedly arranged on the top surface of the connecting piece; the screw rod penetrates through mounting holes at two ends of the galvanized flat iron and two ends of the angle steel.
Furthermore, the connecting piece is formed by fixing a right connecting piece and a left connecting piece through bolts; and the right connecting sheet and the left connecting sheet are matched to clamp the plate rib top protrusion of the vertical overlock occluded roof.
Furthermore, the right connecting piece comprises a right side plate, a right clamping arc, a first right bending part and a second right bending part; the lower end of the right side plate is fixedly provided with a right clamping arc; the inner side of the right side plate is fixedly provided with a first right bending part and a second right bending part from top to bottom in parallel.
Furthermore, the left connecting piece comprises a left side plate, a left clamping arc, a first left bending part and a second left bending part; the lower end of the left side plate is fixedly provided with a left clamping arc; the inner side of the left side plate is fixedly provided with a first left bending part and a second left bending part from top to bottom in parallel.
Furthermore, the right clamping arc is matched with the left clamping arc to clamp and fix the vertical lock edge of the house to be meshed with the plate rib top protrusion of the roof.
Further, the first right bending part is located above the first left bending part; the second right bending part is positioned below the second left bending part; the left end of the first right bending part abuts against the inner side wall of the left side plate; the right end of the first left bending part is abutted to the inner side wall of the right side plate.
Compared with the prior art, the temporary safety device of assembled for standing-seam crimping roofing have following advantage:
(1) the utility model discloses an assembled interim safety device for standing-seam crimping roofing, solved standing-seam crimping roof boarding safety protection difficult to set up, the difficult problem that safe wire rope does not have the node and hangs;
(2) the utility model fixes a plurality of connecting pieces on the rib top projection of the pressed metal plate on the roof, and can adapt to different kinds of roofs with different pressed metal plate rib intervals by adjusting the included angle between the angle steel and the galvanized flat iron in the base;
(3) the utility model can adjust the angle of the installation included angle between the bottom plate and the plate rib, can be erected to form a safety channel along any direction of the plate rib, can be used as a safety rope for high-altitude operation to provide a connection fixed point, and can fix the safety rope on the body of a worker on the steel wire rope, thereby being used as a safety guarantee for roof maintenance, photovoltaic bracket installation, ventilation equipment and other operations;
(4) a interim safety device of assembled for standing-seam crimping roofing, installation labour saving and time saving, the material is common material in the construction to but reuse does not need producer customization component, practices thrift the cost and construct simple and efficient, guarantees the construction safety of high altitude construction on the roofing.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of an embodiment of a temporary safety device for standing-seam roof according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is an isometric view of a securing assembly according to the present invention;
fig. 4 is an isometric view of a connector according to the present invention;
fig. 5 is an exploded view of a connector according to the present invention;
fig. 6 is an isometric view of a base according to the present invention;
fig. 7 is a schematic view of another embodiment of the temporary assembled safety device for standing-seam roof according to the first embodiment of the present invention;
fig. 8 is a schematic view of an embodiment of the assembled temporary safety device for standing-seam roof according to the second embodiment of the present invention;
fig. 9 is a schematic view of an implementation state of the assembled temporary safety device for standing-seam roof according to the third embodiment of the present invention;
fig. 10 is a schematic view of the working status of the worker of the assembled temporary safety device for standing-seam roof according to the present invention.
Description of reference numerals:
1-a connector; 11-a right connecting piece; 111-right snap arc; 112-right side panel; 113-a first right bend; 114-a screw; 115-a second right bend; 12-a left connecting sheet; 121-left snap arc; 122-left side panel; 123-a first left bend; 124-a second left bend; 2-a base; 21-galvanized flat iron; 22-angle steel; 4-connecting a steel pipe; 5-a connecting rod; 51-anti-falling net; 6-connecting ring; 7-a steel wire rope; 8-a steel pipe; 81-dense mesh steel wire mesh; 9-vertical overlock seaming on the roof; 91-rib plate top protrusion; 92-custom mounting ports; 10-a safety line; 11-.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1:
as shown in fig. 1 to 7, an assembled temporary safety device for standing-seam roof is characterized in that: consists of two fixing frames which are parallel to each other; each fixing frame comprises fixing components which are sequentially arranged along the same straight line; two adjacent fixing components are fixedly connected through a steel wire rope 7; a plurality of fixing components are sequentially arranged and installed on the plate rib top protrusions 91 of the standing-seam crimping occlusal roof 9;
each fixing component consists of a base 2, a connecting steel pipe 4, a connecting rod 5 and a connecting piece 1; the connecting steel pipe 4 is fixedly arranged in the middle of the base 2; the lower end of the connecting rod 5 is inserted into the connecting steel pipe 4, and the connecting rod 5 and the connecting steel pipe 4 are fixed through screws; a plurality of connecting rings 6 are fixedly arranged on the connecting rod 5; two ends of the steel wire rope 7 are respectively fixed on the connecting rings 6 of two adjacent fixing components; four connecting pieces 1 are fixedly connected below the base 2; the lower part of the connecting piece 1 is fixed with a plate rib top lug 91 of the vertical lock seaming roofing 9 through a screw;
the base 2 is assembled by galvanized flat iron 21 and angle steel 22; fixedly connecting the middle part of the galvanized flat iron 21 with the middle part of the angle steel 22 through screws; the lower end of the connecting steel pipe 4 is fixedly arranged in the middle of the angle steel 22; wherein, the two connecting pieces 1 are respectively and fixedly arranged at two ends of the galvanized flat iron 21; the other two connecting pieces 1 are respectively and fixedly arranged at two ends of the angle steel 22;
a screw 114 is fixedly arranged on the top surface of the connecting piece 1; the screw 114 passes through mounting holes at two ends of the galvanized flat iron 21 and two ends of the angle steel 22;
the connecting piece 1 is formed by fixing a right connecting piece 11 and a left connecting piece 12 through bolts; the right connecting sheet 11 and the left connecting sheet 12 are matched to clamp the plate rib top lug 91 of the vertical overlock occluded roof 9;
the right connecting piece 11 comprises a right side plate 112, a right clamping arc 111, a first right bending part 113 and a second right bending part 115; the lower end of the right side plate 112 is fixedly provided with a right clamping arc 111; a first right bending part 113 and a second right bending part 115 are fixedly arranged on the inner side of the right side plate 112 from top to bottom in parallel;
the left connecting piece 12 comprises a left side plate 122, a left clamping arc 121, a first left bending part 123 and a second left bending part 124; the lower end of the left side plate 122 is fixedly provided with a left clamping arc 121; a first left bending part 123 and a second left bending part 124 are fixedly arranged on the inner side of the left side plate 122 from top to bottom in parallel;
the right clamping arc 111 and the left clamping arc 121 are matched to clamp and fix the vertical lock edge of the house to be meshed with the plate rib top projection 91 of the roof 9;
the first right bending part 113 is located above the first left bending part 123; the second right bent portion 115 is located below the second left bent portion 124; the left end of the first right bending part 113 abuts against the inner side wall of the left side plate 122; the right end of the first left bending part 123 abuts against the inner side wall of the right side plate 112.
Example two:
the technical solution in the second embodiment is similar to the technical solution in the first embodiment as a whole, but the difference is that in the second embodiment, the connecting ring 6 for fixing the steel wire rope 7 is not fixedly arranged on the connecting rod 5, but a plurality of steel pipes 8 are welded on the connecting rod 5, and two adjacent fixing assemblies are fixedly connected through the steel pipes 8.
As shown in fig. 3-6 and 8, the assembled temporary safety device for standing-seam roof is characterized in that: consists of two fixing frames which are parallel to each other; each fixing frame comprises fixing components which are sequentially arranged along the same straight line; two adjacent fixing assemblies are fixedly connected through a steel pipe 8; a plurality of fixing components are sequentially arranged and installed on the plate rib top protrusions 91 of the standing-seam crimping occlusal roof 9;
each fixing component consists of a base 2, a connecting steel pipe 4, a connecting rod 5 and a connecting piece 1; the connecting steel pipe 4 is fixedly arranged in the middle of the base 2; the lower end of the connecting rod 5 is inserted into the connecting steel pipe 4, and the connecting rod 5 and the connecting steel pipe 4 are fixed through screws; a plurality of steel pipes 8 are fixedly welded on the connecting rod 5; the connecting rods 5 of the adjacent fixing assemblies are fixedly connected together through steel pipes 8; four connecting pieces 1 are fixedly connected below the base 2; the lower part of the connecting piece 1 is fixed with a plate rib top projection 91 of the vertical overlock occluded roof 9 through a screw;
the base 2 is assembled by galvanized flat iron 21 and angle steel 22; fixedly connecting the middle part of the galvanized flat iron 21 with the middle part of the angle steel 22 through screws; the lower end of the connecting steel pipe 4 is fixedly arranged in the middle of the angle steel 22; wherein, the two connecting pieces 1 are respectively and fixedly arranged at two ends of the galvanized flat iron 21; the other two connecting pieces 1 are respectively and fixedly arranged at two ends of the angle steel 22;
a screw 114 is fixedly arranged on the top surface of the connecting piece 1; the screw 114 passes through mounting holes at two ends of the galvanized flat iron 21 and two ends of the angle steel 22;
the connecting piece 1 is formed by fixing a right connecting piece 11 and a left connecting piece 12 through bolts; the right connecting sheet 11 and the left connecting sheet 12 are matched to clamp the plate rib top lug 91 of the vertical overlock occluded roof 9;
the right connecting piece 11 comprises a right side plate 112, a right clamping arc 111, a first right bending part 113 and a second right bending part 114; the lower end of the right side plate 112 is fixedly provided with a right clamping arc 111; a first right bending part 113 and a second right bending part 114 are fixedly arranged on the inner side of the right side plate 112 from top to bottom in parallel;
the left connecting piece 12 comprises a left side plate 122, a left clamping arc 121, a first left bending part 123 and a second right bending part 124; the lower end of the left side plate 122 is fixedly provided with a left clamping arc 121; a first left bending part 123 and a second left bending part 124 are fixedly arranged on the inner side of the left side plate 122 from top to bottom in parallel;
the right clamping arc 111 and the left clamping arc 121 are matched to clamp and fix the vertical lock edge of the house to be meshed with the plate rib top projection 91 of the roof 9;
the first right bending part 113 is located above the first left bending part 123; the second right bent portion 115 is located below the second left bent portion 124; the left end of the first right bending part 113 abuts against the inner side wall of the left side plate 122; the right end of the first left bending part 123 abuts against the inner side wall of the right side plate 112.
Example three:
as shown in fig. 9, the third embodiment is similar to the first embodiment in its entirety, but differs from the third embodiment in that the standing-seam crimping interlocking roof 9 is a curved surface, and the cable 7 is not fixed to the connecting ring 6 of the connecting rod 5, but the connecting rod 5 is fixedly provided with the anti-falling safety net 51, and two adjacent fixing assemblies are connected with each other through the anti-falling safety net 51 to form a net structure.
A interim safety device of assembled for standing-seam crimping roofing, its specific installation and implementation process are as follows:
as shown in fig. 1-10, the right connecting piece 11 and the left connecting piece 12 in the connecting piece 1 are respectively placed on two sides of the top projection of the plate rib 91 of the standing-seam crimping occlusal roof 9, and the bolt is tightened to enable the left clamping arc 121 at the lower end of the left connecting piece 12 to be matched with the right clamping arc 111 at the lower end of the right connecting piece 11 to clamp the top projection of the plate rib 91 of the standing-seam crimping occlusal roof 9; thus, the connecting piece 1 is fixed on the top projection of the plate rib 91 of the vertical lock seaming roofing 9; adjusting the included angle between the galvanized flat iron 21 and the angle steel 22 to a proper position, enabling the screw 114 to penetrate through the mounting holes at the two ends of the galvanized flat iron 21 and the angle steel 22, and tightening the nuts to fix the two ends of the galvanized flat iron 21 and the two ends of the angle steel 22 with the connecting piece 1; inserting the connecting rod 5 into the connecting steel pipe 4, and tightening the screw to fix the connecting rod 5;
according to the technical scheme in the first embodiment, the connecting rod 5 is welded with the connecting ring 6, and the plurality of fixing components are fixedly connected in a mode that the steel wire rope 7 penetrates through the connecting ring 6, so that a fixing frame with a net structure is formed, and two fixing frames which are parallel to each other form a safety channel on the vertical lockrand occlusion roof 9;
according to the technical scheme in the second embodiment, a plurality of steel pipes 8 are welded on the connecting rod 5, and a dense mesh steel wire mesh 81 is wound among the steel pipes 8, so that a fixing frame with a net structure is formed, and a safety channel is formed between two parallel fixing frames on the vertical lockrand occlusion roof 9;
according to the technical scheme in the third embodiment, the anti-falling safety net 51 is fixedly mounted on the connecting rod 5, two adjacent fixing components are connected through the anti-falling safety net 51, a net-shaped structure is formed on the vertical overlock occlusion roof 9, and the net-shaped structure is located below a worker working at high altitude and can prevent the worker from falling.
When the customized mounting hole 92 for mounting special equipment is formed in the vertical overlock occlusion roof 9, a worker needs to enter the customized mounting hole 92 to perform high-altitude operation, the worker needs to wear the safety rope 10 on the body, and the safety rope 10 is fixed on the steel wire ropes 7 on the two fixing frames through the lock catches, so that the safety of the high-altitude operation of the worker is ensured.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An assembled temporary safety device for standing-seam crimping roofing, its characterized in that: consists of two fixing frames which are parallel to each other; each fixing frame comprises fixing components which are sequentially arranged along the same straight line; two adjacent fixing components are fixedly connected through a steel wire rope (7); a plurality of fixing components are sequentially arranged and installed on a plate rib top projection (91) of the vertical overlock occlusion roof (9);
each fixing component consists of a base (2), a connecting steel pipe (4), a connecting rod (5) and a connecting piece (1); the connecting steel pipe (4) is fixedly arranged in the middle of the base (2); the lower end of the connecting rod (5) is inserted into the connecting steel pipe (4), and the connecting rod (5) and the connecting steel pipe (4) are fixed through screws; a plurality of connecting rings (6) are fixedly arranged on the connecting rod (5); two ends of the steel wire rope (7) are respectively fixed on the connecting rings (6) of two adjacent fixing components; four connecting pieces (1) are fixedly connected below the base (2); the lower part of the connecting piece (1) is fixed with a plate rib top protrusion (91) of the vertical lock seaming occluded roof (9) through a screw.
2. A fabricated temporary safety device for standing-seam roofs according to claim 1, wherein: the base (2) is formed by assembling galvanized flat iron (21) and angle steel (22); the middle part of the galvanized flat iron (21) is fixedly connected with the middle part of the angle steel (22) through a screw; the lower end of the connecting steel pipe (4) is fixedly arranged in the middle of the angle steel (22); wherein the two connecting pieces (1) are respectively and fixedly arranged at two ends of the galvanized flat iron (21); and the other two connecting pieces (1) are respectively and fixedly arranged at two ends of the angle steel (22).
3. A fabricated temporary safety device for standing-seam roofs according to claim 2, wherein: a screw (114) is fixedly arranged on the top surface of the connecting piece (1); the screw (114) penetrates through mounting holes at two ends of the galvanized flat iron (21) and two ends of the angle steel (22).
4. A fabricated temporary safety device for standing-seam roofs according to claim 2, wherein: the connecting piece (1) is formed by fixing a right connecting piece (11) and a left connecting piece (12) through bolts; and the right connecting sheet (11) and the left connecting sheet (12) are matched to clamp the plate rib top protrusion (91) of the vertical overlock occlusion roof (9).
5. A fabricated temporary safety device for standing-seam roofs according to claim 4, wherein: the right connecting piece (11) comprises a right side plate (112), a right clamping arc (111), a first right bending part (113) and a second right bending part (115); the lower end of the right side plate (112) is fixedly provided with a right clamping arc (111); a first right bending part (113) and a second right bending part (115) are fixedly arranged on the inner side of the right side plate (112) from top to bottom in parallel;
the left connecting piece (12) comprises a left side plate (122), a left clamping arc (121), a first left bending part (123) and a second left bending part (124); the lower end of the left side plate (122) is fixedly provided with a left clamping arc (121); a first left bending part (123) and a second left bending part (124) are fixedly arranged on the inner side of the left side plate (122) from top to bottom in parallel;
the left connecting sheet (12) and the right connecting sheet (11) are fixed by sequentially penetrating through the left side plate (122) and the right side plate (112) through bolts; the right clamping arc (111) and the left clamping arc (121) are matched to clamp and fix the vertical lock seaming of the house to the plate rib top projection (91) of the roof (9).
6. A fabricated temporary safety device for standing-seam roofs according to claim 5, wherein: the first right bend (113) is located above the first left bend (123); the second right bend (115) is located below the second left bend (124); the left end of the first right bending part (113) is abutted against the inner side wall of the left side plate (122); the right end of the first left bending part (123) abuts against the inner side wall of the right side plate (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245519.7U CN211818175U (en) | 2019-12-13 | 2019-12-13 | A interim safety device of assembled for standing-seam crimping roofing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245519.7U CN211818175U (en) | 2019-12-13 | 2019-12-13 | A interim safety device of assembled for standing-seam crimping roofing |
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| CN211818175U true CN211818175U (en) | 2020-10-30 |
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| CN201922245519.7U Active CN211818175U (en) | 2019-12-13 | 2019-12-13 | A interim safety device of assembled for standing-seam crimping roofing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282405A (en) * | 2020-11-27 | 2021-01-29 | 郑州宝冶钢结构有限公司 | Anti-falling device for metal roof |
| CN114250987A (en) * | 2022-02-09 | 2022-03-29 | 中建八局装饰工程有限公司 | Roof anti-falling device, construction method and application |
| CN116290833A (en) * | 2023-05-24 | 2023-06-23 | 山东高速德建集团有限公司 | Roof steel frame construction device suitable for slope roof |
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2019
- 2019-12-13 CN CN201922245519.7U patent/CN211818175U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282405A (en) * | 2020-11-27 | 2021-01-29 | 郑州宝冶钢结构有限公司 | Anti-falling device for metal roof |
| CN114250987A (en) * | 2022-02-09 | 2022-03-29 | 中建八局装饰工程有限公司 | Roof anti-falling device, construction method and application |
| CN116290833A (en) * | 2023-05-24 | 2023-06-23 | 山东高速德建集团有限公司 | Roof steel frame construction device suitable for slope roof |
| CN116290833B (en) * | 2023-05-24 | 2023-07-25 | 山东高速德建集团有限公司 | Roof steel frame construction device suitable for slope roof |
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