CN211143426U - Connecting structure of building curtain wall - Google Patents
Connecting structure of building curtain wall Download PDFInfo
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- CN211143426U CN211143426U CN201921891202.4U CN201921891202U CN211143426U CN 211143426 U CN211143426 U CN 211143426U CN 201921891202 U CN201921891202 U CN 201921891202U CN 211143426 U CN211143426 U CN 211143426U
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- 238000010586 diagram Methods 0.000 description 4
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- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
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Abstract
The utility model discloses a connecting structure of building curtain walls, the flat seat is provided with two in up-down symmetry, the opposite faces of the two flat seats are fixedly connected with the hollow square cylinders, the two hollow square cylinders are respectively connected with the upper and lower ends of the vertical rod in a sliding way, the relative positions of the two hollow square cylinders and the vertical rod can be fixed, the left ends of the two flat seats are fixedly connected with the middle convex plate, the middle parts of the two spring sleeve columns are respectively fixedly connected with the two middle convex plates, the front and rear ends of the two spring sleeve columns are respectively sleeved with a compression spring, the sliding seat is provided with two from top to bottom, two all be provided with on the sliding seat the spout, two the left end of flat seat sliding connection respectively is in two on the spout, two all be provided with relatively on the sliding seat two collude the slot.
Description
Technical Field
The utility model relates to a connection structure specifically is a connection structure of building curtain.
Background
Building curtain walls refer to the non-load bearing exterior wall envelope of a building, usually consisting of panels and a supporting structure behind. The utility model discloses a building curtain wall with sunshade structure that application number is CN201821692431.9, the utility model provides a building curtain wall with sunshade structure, including outer curtain wall, inlayer curtain wall, activity tripe, the upper end nestification of outer curtain wall is provided with upper portion mounting, the lower extreme nestification of outer curtain wall is provided with lower part mounting, there is the guide rail through bolt fixedly connected with in the middle of upper portion mounting and the lower part mounting, upper portion mounting and lower part mounting are located the left side nestification of guide rail and are provided with inlayer curtain wall, the lower extreme of upper portion mounting has the overhead tank through bolt fastening, the activity tripe is nested in the spout of both sides of guide rail and is installed, the whole device structure of the utility model can effectively prevent glare, prevent direct sunlight, especially wherein the damage of ultraviolet ray to indoor article, greatly reduce the heat that gets into the room through building curtain, when the external sunlight is directly irradiated, the movable shutter is automatically closed, and the popularization value is very high. However, the building curtain wall does not have the effect of sliding left and right, can not adapt to the expansion with heat and contraction with cold of the building curtain wall to a greater extent, and the size of the building curtain wall is fixed, so that the curtain walls of different models can not be connected and installed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connection structure of building curtain to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a connection structure of building curtain wall, including vertical pole, flat seat, hollow square tube, middle flange, spring pocket post, sliding seat, collude slot, side round hole board, spout, rectangular frame and L shape collude, flat seat longitudinal symmetry is provided with two, two equal fixedly connected with on the opposite face of flat seat the hollow square tube, two the hollow square tube respectively sliding connection in the upper and lower both ends of vertical pole, two the relative position of hollow square tube with the vertical pole can be fixed, two the equal fixedly connected with in the left end of flat seat the middle flange, two the middle part of spring pocket post respectively fixedly connected with two on the middle flange, two the front and back both ends of spring pocket post all cup joint compression spring, the sliding seat is provided with two from top to bottom, two the sliding seat all is provided with the spout, two the left end of flat seat respectively sliding connection on two the spout, two the sliding seat is provided with two the slots, two the sliding seat both ends of sliding seat all fixedly connected with the sliding seat are provided with the sliding groove, two the sliding seat is provided with two the sliding frame is provided with the sliding groove, two sliding seat is provided with the sliding groove, two vertical frame, the sliding groove is provided with the rectangular frame, two vertical frame, two sliding groove is provided with the rectangular frame, the vertical frame is provided with the vertical frame, two sliding groove is provided with the vertical frame, the rectangular frame, the vertical frame, two sliding groove is provided with the rectangular frame, two sliding groove is provided with the vertical frame, the rectangular frame is provided with the vertical frame, the rectangular frame is provided with the rectangular frame, the vertical frame, the rectangular frame, the vertical frame is provided with the vertical frame, two vertical frame, the rectangular frame, the vertical frame is provided with the vertical frame.
In a further embodiment, the connecting structure of the building curtain wall further comprises screw inserting plates, a plurality of screw inserting plates are arranged on the two hollow square cylinders, and screw inserting holes are formed in the plurality of screw inserting plates. The screw inserting plates arranged on the two hollow square cylinders are used for inserting screws, so that the hollow square cylinders are fixed on the wall surface of a building, and the whole device and the building curtain wall plate are fixed on the wall surface of the building.
In a further embodiment, the connecting structure of the building curtain wall further comprises two blocking pieces, a bidirectional threaded screw, a hexagonal rotating head and an inner convex plate, wherein the two blocking pieces are fixedly connected to the middle part of the vertical rod, the hexagonal rotating head is arranged at the middle part of the bidirectional threaded screw, the bidirectional threaded screw is rotatably connected to the two blocking pieces, the hexagonal rotating head is located between the two blocking pieces, the inner convex plate is fixedly connected to the two hollow square cylinders, the thread directions of the upper end and the lower end of the bidirectional threaded screw are opposite, and the upper end and the lower end of the bidirectional threaded screw are respectively matched with the two inner convex plates through threads. The hexagonal rotating head can be rotated to drive the bidirectional threaded screw to rotate by taking the axis of the screw as a shaft, so that the two inner convex plates are driven to be close to or far away from each other, finally, the two hollow square cylinders are controlled to be close to or far away from each other on the vertical rod, and the distance between the two flat seats is adjusted.
In a further embodiment, the connecting structure of the building curtain wall further comprises an inserting screw seat, inserting screws, an upper convex plate, a lower convex plate and an internal thread cylinder, wherein the upper end and the lower end of the rectangular frame are fixedly connected with the upper convex plate and the lower convex plate, the upper convex plate and the lower convex plate are fixedly connected with the internal thread cylinder, the sliding seats are fixedly connected with the inserting screw seat, the inserting screws are respectively inserted into the two inserting screw seats in a clearance fit manner, and the left ends of the inserting screws are respectively connected into the two internal thread cylinders through threads. Can make collude the back with rectangular frame between two sliding seats, again with two insert screw respectively screw in two internal thread section of thick bamboos, can be so that rectangular frame fixed more firm.
In a further embodiment, the connecting structure of the building curtain wall further comprises a connecting hole, and the rectangular frame is provided with a plurality of connecting holes. Can make a plurality of connecting holes be used for inserting the screw, and then fix the building curtain board of equidimension not on rectangular frame.
Compared with the prior art, the utility model has the advantages that two are arranged through the vertical symmetry of the flat seats, two hollow square cylinders are fixedly connected to the opposite faces of the two flat seats, the two hollow square cylinders are respectively connected to the upper and lower ends of the vertical rod in a sliding manner, the relative positions of the two hollow square cylinders and the vertical rod can be fixed, the middle convex plates are respectively fixedly connected to the left ends of the two flat seats, the middle parts of the two spring sleeve columns are respectively and fixedly connected to the two middle convex plates, compression springs are respectively sleeved at the front and rear ends of the two spring sleeve columns, the sliding seats are respectively provided with two sliding grooves, the left ends of the two flat seats are respectively and slidably connected to the two sliding grooves, two hooking slots are correspondingly arranged on the two sliding seats, the front and rear ends of the two spring sleeve columns which are respectively and slidably connected to the two lateral circular hole plates which are arranged at the upper end, the front and rear ends of the spring sleeve columns which are respectively and slidably connected to the two lateral circular hole plates which are arranged at the lower end, the two rectangular frame which are respectively and can be inserted into the two rectangular frame boards which are arranged at the upper end of the lower end of the rectangular frame, the rectangular frame can be inserted into the rectangular frame, the rectangular frame which can be inserted into the vertical frame, the rectangular frame which is inserted into the rectangular frame which can be inserted into the rectangular frame which is inserted into the rectangular frame, the rectangular frame which can be inserted into the rectangular frame which is inserted into the rectangular frame which can be inserted into the rectangular frame which is arranged at the vertical frame, the rectangular frame which can be inserted into the rectangular frame, the rectangular frame which can be inserted into the rectangular frame, the building, the rectangular frame which can be inserted into the.
All be provided with a plurality of screw picture pegs through on two hollow square tubes, all be provided with the screw jack on a plurality of screw picture pegs for a plurality of screw picture pegs that set up on two hollow square tubes all are used for inserting the screw, and then fix hollow square tube on the building wall, and then fix whole and building curtain board of device on the building wall.
Two separation blades of middle part fixedly connected with through vertical pole, the middle part of two-way screw thread screw rod is provided with hexagonal rotating head, two-way screw thread screw rod rotates to be connected on two separation blades, hexagonal rotating head is located between two separation blades, protruding board in equal fixedly connected with on two hollow square barrels, the upper and lower both ends screw thread of two-way screw thread screw rod is turned to opposite directions, the upper and lower both ends of two-way screw thread screw rod are respectively through screw thread and two interior protruding board cooperations, make rotating hexagonal rotating head can drive two-way screw thread screw rod and use the axis of self to rotate as the axle, and then drive two interior protruding boards and be close to each other or keep away from, two hollow square barrels of final control are close to each other or keep away from on vertical pole.
The upper convex plate and the lower convex plate are fixedly connected with the upper end and the lower end of the rectangular frame respectively, the upper convex plate and the lower convex plate are fixedly connected with the internal thread cylinders respectively, the two sliding seats are fixedly connected with the bolt inserting seats respectively, the two inserting bolts are inserted into the two bolt inserting seats in a clearance fit mode respectively, the left ends of the two inserting bolts are connected into the two internal thread cylinders respectively through threads, the rectangular frame is hooked between the two sliding seats, the two inserting bolts are screwed into the two internal thread cylinders respectively, and the rectangular frame can be fixed more stably.
Through being provided with a plurality of connecting holes on the rectangular frame for a plurality of connecting holes are used for inserting the screw, and then fix the building curtain board of equidimension not on the rectangular frame.
Drawings
Fig. 1 is a first schematic structural diagram of a connection structure of a building curtain wall according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram ii of a connection structure of a building curtain wall according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a vertical rod, a bidirectional threaded screw and a flat seat;
FIG. 4 is a first schematic structural view of the sliding seat;
FIG. 5 is a second schematic structural view of the sliding seat;
FIG. 6 is a first schematic structural diagram of a rectangular frame;
fig. 7 is a schematic structural diagram of a rectangular frame.
In the drawing, a vertical rod 1, a baffle plate 1-1, a bidirectional threaded screw rod 2, a hexagonal rotating head 2-1, a flat seat 3, a hollow square cylinder 3-1, a screw inserting plate 3-2, a middle convex plate 3-3, a spring sleeve column 3-4, a sliding seat 4, a screw inserting seat 4-1, an inserting screw 4-2, a hooking slot 4-3, a side circular hole plate 4-4, a sliding slot 4-5, a rectangular frame 5, a connecting hole 5-1, an upper convex plate 5-2, a lower convex plate 5-3, an internal threaded cylinder 5-3 and L-shaped hooks 5-4 are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-7, the utility model provides a technical scheme, a connecting structure of a building curtain wall comprises a vertical rod 1, a flat seat 3, two hollow square tubes 3-1, two middle convex plates 3-3, spring sleeves 3-4, a sliding seat 4, hook slots 4-3, side circular hole plates 4-4, a sliding groove 4-5, a rectangular frame 5 and L-shaped hooks 5-4, two sliding seats 3 are symmetrically arranged up and down, the two flat seats 3 are fixedly connected with the hollow square tubes 3-1 on opposite surfaces of the two flat seats 3, the two hollow square tubes 3-1 are respectively slidably connected with the upper and lower ends of the vertical rod 1, the relative positions of the two hollow square tubes 3-1 and the vertical rod 1 can be fixed, the middle convex plates 3-3 are fixedly connected with the left ends of the two flat seats 3, the middle parts of the two spring sleeves 3-4 are respectively fixedly connected with the two middle convex plates 3-3, the two middle parts of the two rectangular convex plates 3-4 are respectively fixedly connected with the two middle convex plates 3-3, the two sliding grooves 3-4, the sliding grooves 3-4 are respectively fixedly connected with the two sliding grooves 3-4, the sliding grooves 3-4 can be respectively positioned on the upper ends of the two sliding grooves 3-4 of the sliding grooves 3-4, the sliding grooves 3-4 of the sliding groove 3, the sliding groove 3-4 groove 3, the sliding groove 3-4 groove, the sliding groove 3 is respectively, the sliding groove 4 groove 3-4 groove, the sliding groove 3-4 groove 3 is positioned on the sliding groove, the sliding groove 4 groove, the sliding groove 3-4 groove 3, the sliding groove 3 is positioned on the sliding groove, the sliding groove 3, the sliding groove 3-4 groove 3, the sliding groove 4 groove, the sliding groove 3, the sliding groove 4 groove 3-4 groove, the sliding groove 3 is positioned on the sliding groove 3, the sliding groove 3, the sliding groove 4 groove 3-4 groove 3, the sliding groove 4 groove 3 is positioned on the sliding groove 3, the sliding groove 4 groove, the sliding groove 3, the sliding groove.
In a further embodiment, the connecting structure of the building curtain wall further comprises screw inserting plates 3-2, a plurality of screw inserting plates 3-2 are arranged on the two hollow square cylinders 3-1, and screw inserting holes are formed in the plurality of screw inserting plates 3-2. The plurality of screw inserting plates 3-2 arranged on the two hollow square cylinders 3-1 are used for inserting screws, so that the hollow square cylinders 3-1 are fixed on the wall surface of a building, and the whole device and the building curtain wall plate are fixed on the wall surface of the building.
In a further embodiment, the connecting structure of the building curtain wall further comprises a baffle plate 1-1, a bidirectional threaded screw rod 2, a hexagonal rotating head 2-1 and an inner convex plate 3-5, the middle part of the vertical rod 1 is fixedly connected with two baffle sheets 1-1, the middle part of the bidirectional threaded screw rod 2 is provided with the hexagonal rotating head 2-1, the bidirectional threaded screw rod 2 is rotationally connected with the two baffle sheets 1-1, the hexagonal rotating head 2-1 is positioned between the two baffle sheets 1-1, the two hollow square cylinders 3-1 are fixedly connected with the inner convex plates 3-5, the upper end and the lower end of the bidirectional threaded screw rod 2 are opposite in thread turning direction, and the upper end and the lower end of the bidirectional threaded screw rod 2 are respectively matched with the two inner convex plates 3-5 through threads. The hexagonal rotating head 2-1 can be rotated to drive the bidirectional threaded screw rod 2 to rotate by taking the axis of the bidirectional threaded screw rod as a shaft, so that the two inner convex plates 3-5 are driven to be close to or far away from each other, finally, the two hollow square cylinders 3-1 are controlled to be close to or far away from each other on the vertical rod 1, and the distance between the two flat seats 3 is adjusted.
In a further embodiment, the connecting structure of the building curtain wall further comprises a bolt inserting seat 4-1, a bolt 4-2, an upper convex plate 5-2, a lower convex plate 5-2 and an internal thread cylinder 5-3, the upper end and the lower end of the rectangular frame 5 are fixedly connected with the upper convex plate 5-2 and the lower convex plate 5-2, the internal thread cylinder 5-3 is fixedly connected with the upper convex plate 5-2 and the lower convex plate 5-2, the bolt inserting seat 4-1 is fixedly connected with the two sliding seats 4, the two bolt inserting seats 4-2 are respectively inserted into the two bolt inserting seats 4-1 in a clearance fit manner, and the left ends of the two bolt inserting seats 4-2 are respectively connected into the two internal thread cylinders 5-3 through threads. After the rectangular frame 5 is hooked between the two sliding seats 4, the two inserting screws 4-2 are screwed 1 into the two internal thread cylinders 5-3 respectively, so that the rectangular frame 5 can be fixed more stably.
In a further embodiment, the connecting structure of the building curtain wall further comprises a connecting hole 5-1, and the rectangular frame 5 is provided with a plurality of connecting holes 5-1. A plurality of connection holes 5-1 can be used to insert screws, thereby fixing the building curtain wall panels of different sizes on the rectangular frame 5.
The working principle is that two hollow square cylinders 3-1 can vertically slide on a vertical rod 1 to further adjust the distance between two flat seats 3, the relative positions of the two hollow square cylinders 3-1 and the vertical rod 1 can be fixed, when the distance between the two flat seats 3 is reduced, all L-shaped hooks 5-4 on a rectangular frame 5 can be separated from all hook insertion slots 4-3, and then the rectangular frame 5 can be dismounted, the curtain wall board of the building needs to be fixed on the rectangular frame 5, the rectangular frame 5 is a carrier of the curtain wall board of the building, the height of the rectangular frame 5 can be set to be different sizes, the rectangular frames 5 with different sizes can be connected between the two flat seats 3 to further fix the curtain wall boards with different sizes, two spring sleeves 3-4 can transversely slide on the corresponding two side circular hole plates 4-4 to further compress the compression springs therein, so that the curtain wall board of the building can realize the effect of left-right sliding, the curtain wall board of the building is more stable, the rectangular curtain wall board can be adapted to the occurrence of heat shrinkage of the curtain wall board of the building, the two square cylinders 3-1, further, the two square cylinders 3-1-2 inserting bolts are inserted into the two hollow square cylinders 3-1, and then the two vertical rods of the curtain wall boards of the building are fixed, and then are further fixed on the two square cylinders 3-1, the two rectangular frame of the building, the two rectangular frame of the rectangular frame, the rectangular frame of the rectangular frame, the building, the rectangular frame 3-5, the rectangular frame of the building can be further, the rectangular frame of the.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A connecting structure of a building curtain wall comprises a vertical rod (1), a flat seat (3), hollow square cylinders (3-1), middle convex plates (3-3), spring sleeve columns (3-4), sliding seats (4), hook inserting grooves (4-3), side circular hole plates (4-4), sliding grooves (4-5), rectangular frames (5) and L-shaped hooks (5-4), the connecting structure is characterized in that the flat seat (3) is provided with two vertical symmetrical hook holes, the opposite surfaces of the two flat seats (3) are fixedly connected with the hollow square cylinders (3-1), the two hollow square cylinders (3-1) are respectively and slidably connected with the upper end and the lower end of the vertical rod (1), the relative positions of the two hollow square cylinders (3-1) and the vertical rod (1) can be fixed, the left ends of the two flat seats (3) are respectively and fixedly connected with the middle convex plates (3-3), the middle parts of the two spring sleeve columns (3-4) are respectively and fixedly connected with the middle parts of the two middle convex plates (3-3) and the middle parts of the two spring sleeve columns (3-3) are respectively and fixedly connected with the front and rear concave holes (3-4), the sliding grooves (3-4-concave grooves (3-4) are respectively and the front and rear sliding grooves (3-4), the sliding grooves (3-4) are respectively and rear sliding grooves, the sliding grooves (3-4) are fixedly connected with the sliding grooves, the sliding grooves (3-4), the sliding grooves (3-4) and 355-4-concave grooves (3-4) and the sliding grooves, the sliding grooves are respectively, the sliding grooves (3-4) and the sliding grooves, the sliding grooves (3-4) are respectively, the sliding grooves (3-4) and the sliding grooves (3-4) are respectively fixedly connected with the sliding grooves, the sliding grooves (3-4) and the sliding grooves (3-4) are respectively, the sliding grooves (3-4) and the sliding grooves.
2. The connecting structure of a construction curtain wall as claimed in claim 1, wherein: the connecting structure of the building curtain wall further comprises screw inserting plates (3-2), a plurality of screw inserting plates (3-2) are arranged on the two hollow square cylinders (3-1), and screw inserting holes are formed in the plurality of screw inserting plates (3-2).
3. The connecting structure of a construction curtain wall as claimed in claim 2, wherein: the connecting structure of the building curtain wall also comprises a baffle (1-1), a bidirectional threaded screw (2), a hexagonal rotating head (2-1) and an inner convex plate (3-5), the middle part of the vertical rod (1) is fixedly connected with two blocking pieces (1-1), the middle part of the bidirectional threaded screw rod (2) is provided with the hexagonal rotating head (2-1), the bidirectional threaded screw (2) is rotationally connected to the two baffle pieces (1-1), the hexagonal rotating head (2-1) is positioned between the two blocking pieces (1-1), the two hollow square cylinders (3-1) are both fixedly connected with the inner convex plates (3-5), the upper end and the lower end of the bidirectional threaded screw rod (2) are opposite in thread turning direction, and the upper end and the lower end of the bidirectional threaded screw rod (2) are respectively matched with the two inner convex plates (3-5) through threads.
4. The connecting structure of building curtain wall as claimed in claim 3, wherein: the connecting structure of the building curtain wall further comprises a screw inserting seat (4-1), inserting screws (4-2), upper and lower convex plates (5-2) and an internal thread cylinder (5-3), the upper and lower ends of the rectangular frame (5) are fixedly connected with the upper and lower convex plates (5-2), the two upper and lower convex plates (5-2) are fixedly connected with the internal thread cylinder (5-3), the two sliding seats (4) are fixedly connected with the screw inserting seat (4-1), the two inserting screws (4-2) are respectively inserted into the two screw inserting seats (4-1) in a clearance fit mode, and the left ends of the two inserting screws (4-2) are respectively connected into the two internal thread cylinders (5-3) through threads.
5. The connecting structure of building curtain wall as claimed in claim 4, wherein: the connecting structure of the building curtain wall further comprises connecting holes (5-1), and the rectangular frame (5) is provided with a plurality of connecting holes (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891202.4U CN211143426U (en) | 2019-11-05 | 2019-11-05 | Connecting structure of building curtain wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891202.4U CN211143426U (en) | 2019-11-05 | 2019-11-05 | Connecting structure of building curtain wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211143426U true CN211143426U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921891202.4U Active CN211143426U (en) | 2019-11-05 | 2019-11-05 | Connecting structure of building curtain wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211143426U (en) |
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2019
- 2019-11-05 CN CN201921891202.4U patent/CN211143426U/en active Active
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Address after: No.1905-1907, building a, times international building, 555 Yunhe East Road, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Innovation Construction Engineering Co.,Ltd. Address before: No.1905-1907, building a, times international building, 555 Yunhe East Road, Wuxi City, Jiangsu Province, 214000 Patentee before: Wuxi innovation curtain wall decoration Engineering Co.,Ltd. |
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Effective date of registration: 20240506 Address after: No. 765 Xupan Village, Xiedian Township, Guan County, Liaocheng City, Shandong Province, 252000 Patentee after: Yan Chunjing Country or region after: China Address before: No.1905-1907, building a, times international building, 555 Yunhe East Road, Wuxi City, Jiangsu Province, 214000 Patentee before: Wuxi Innovation Construction Engineering Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240603 Address after: Room 204, 2nd Floor, Building 2, No. 5 Jinguang Road, Liangxiang Industrial Zone, Fangshan District, Beijing, 102400 Patentee after: Zhonghong Shoukun Construction Group Co.,Ltd. Country or region after: China Address before: No. 765 Xupan Village, Xiedian Township, Guan County, Liaocheng City, Shandong Province, 252000 Patentee before: Yan Chunjing Country or region before: China |