Fabricated building curtain wall structure

Abstract

The application relates to the technical field of curtain wall structures, and particularly discloses a fabricated building curtain wall structure which comprises a plurality of stand columns fixed on a building outer wall through bolts, a first curtain plate and a plurality of second curtain plates assembled between two adjacent stand columns; the first curtain plate can be opened by rotating, and the second curtain plate is longitudinally slidably installed; when the first curtain plate is opened by rotating, the second curtain plate can be unlocked by disassembling reinforcing components and positioning blocks; then, when the second curtain plate is moved to the mounting position of the first curtain plate, the second curtain plate can be completely taken out and replaced; when the first curtain plate is replaced, the mounting plate can be taken out from the inside of the circular groove of the first curtain plate by rotating to 90 degrees, so that the first curtain plate is conveniently replaced; the whole process does not need to be assisted by large disassembling equipment, is simple and convenient to operate, and does not affect the sealing performance and the firmness of installation.

Description

Technical Field

[0001] This invention relates to the field of curtain wall structure technology, and specifically proposes a prefabricated building curtain wall structure. Background Technology

[0002] With the development of prefabricated building technology, the industrialization and modular installation of building curtain walls has become the mainstream trend in the industry. Existing curtain wall structures, whether traditional frame installation or prefabricated unit installation, usually use connectors (such as pressure blocks, hooks, bolts, etc.) to permanently or semi-permanently fix the panels (curtain panels) to the vertical or horizontal keel. When a single curtain panel needs to be replaced due to accidental impact, material aging, or functional changes during the use of the building, a complex operation process will be faced. It usually requires the use of large external mechanical equipment to dismantle a large area of ​​the curtain panels around the damaged curtain panel. This process not only consumes a lot of time and manpower, but also increases the safety risks of working at height.

[0003] Unitized curtain walls, developed to improve assembly efficiency, transfer a large amount of on-site work to the factory. However, each "unit" is a closed whole integrating the keel and the panel. Once the curtain panel inside the unit is damaged, it is often necessary to disassemble and replace the entire large unit. Its economy and convenience are even lower than that of traditional frame-type curtain walls. Although existing curtain walls are designed with operable windows to provide maintenance access, these operable windows usually exist as independent windows or ventilation openings. Their size, position and opening method are separate from the large area fixed curtain panels, and they cannot directly serve the replacement of fixed curtain panels. If the large area fixed curtain panels are designed as a whole operable form, it will lead to complex structure, increased cost and difficulty in guaranteeing air tightness and water tightness.

[0004] Therefore, there is an urgent need for a prefabricated building curtain wall structure that reduces airtightness damage and facilitates the replacement of damaged panels. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a prefabricated building curtain wall structure to solve the issues mentioned in the background section.

[0006] To achieve the above objectives, the present invention employs the following technical solution: a prefabricated building curtain wall structure, comprising multiple columns fixed to the exterior wall of a building by bolts, wherein the columns have a T-shaped cross-section, and a first curtain panel and multiple second curtain panels are assembled between two adjacent columns. The first curtain panel is rotatably installed between two adjacent columns, and the multiple second curtain panels are slidably installed between two adjacent columns. The surface of the columns is provided with longitudinal guide rods, and the two sides of the second curtain panels are provided with guide grooves. The guide rods are slidably installed inside the guide grooves. Positioning blocks are installed on both sides of the top of the second curtain panels, and the positioning blocks are installed on the surface of the columns. A second sealing strip is installed on the top of the second curtain panels. The two sides of the first curtain panels are provided with circular grooves, and the surface of the columns is provided with an integrally formed mounting plate. The two sides of the mounting plate are arc-shaped and adapted to the shape of the inner wall of the circular groove. The top of the first curtain panel is provided with a horizontal groove, the width of which is adapted to the thickness of the mounting plate. A first sealing strip is installed on the top of the first curtain panel, and the surface of the first sealing strip is provided with a protruding strip, which is engaged inside the horizontal groove. A locking assembly is installed between the first curtain panel and the columns.

[0007] Preferably, the positioning block has a T-shaped cross-section, the surface of the column has a T-shaped groove, the surface of the second curtain panel has a slot, the length of the slot is not less than the length of the positioning block, one end of the positioning block is locked inside the T-shaped groove, and the bottom of the positioning block is locked inside the slot.

[0008] Preferably, there are three second curtain panels, the length of the column is greater than two and less than the width of the three second curtain panels, and a reinforcing component is installed inside the guide groove of the topmost second curtain panel.

[0009] Preferably, the reinforcement component includes an anti-sway bar adapted to the inside of the guide groove, one side of the anti-sway bar is provided with an integrally formed mounting rod, and the other side of the anti-sway bar is provided with an integrally formed positioning plate, the positioning plate abutting against the surface of the topmost second curtain panel.

[0010] Preferably, the surface of the column is provided with a mounting groove with a length greater than twice the length of the mounting rod, and the mounting rod is fixed inside the mounting groove by a screw.

[0011] Preferably, the locking assembly includes an elongated groove formed on the surface of the first curtain panel, a sealing strip with a shape adapted to the shape of the elongated groove is installed inside the elongated groove, a protruding rod matching the elongated groove is provided at the corresponding position of the column, a plurality of locking rods are installed inside the frame of the first curtain panel, a locking groove is formed on the surface of the protruding rod, and the locking rod is engaged inside the locking groove.

[0012] Preferably, the frame surface of the first curtain panel has a groove, the locking rod is installed inside the groove by a spring, the locking rod moves through the sealing strip and is inserted into the groove, and the locking rod is a metal with magnetic properties.

[0013] Preferably, the end of the locking rod is tapered, and the shape inside the groove is adapted to the shape of the end of the locking rod.

[0014] Preferably, the cross-section of the guide rod is trapezoidal, and the internal shape of the guide groove is adapted to the shape of the guide rod.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] By setting up a first curtain panel that can be rotated open and a second curtain panel that can be slidably installed longitudinally, when the first curtain panel is rotated open, the second curtain panel can be unlocked by disassembling the reinforcing components and positioning blocks. Then, when the second curtain panel is moved to the installation position of the first curtain panel, the second curtain panel can be completely removed and replaced. The installation is done in reverse. When replacing the first curtain panel, it is only necessary to rotate it to a full 90° to remove the mounting plate from the circular groove of the first curtain panel, which is convenient for replacing the first curtain panel. The whole process does not require the use of large disassembly equipment. It only requires unlocking the locking components of the first curtain panel by magnetic attraction. The operation is simple and convenient, and does not affect the sealing and the firmness of the installation. Attached Figure Description

[0017] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0018] Figure 1 This is a three-dimensional structural diagram of a prefabricated building curtain wall structure provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the back of a prefabricated building curtain wall structure.

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the column surface at the installation location of the first curtain panel.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the column surface at the position of the second curtain panel at the top.

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the second curtain panel.

[0023] Figure 6 This is a three-dimensional structural diagram of the first panel.

[0024] Figure 7 This is a schematic diagram of the installation structure of the positioning block and the second curtain panel.

[0025] Figure 8 This is a three-dimensional structural diagram of the slot location for the second panel.

[0026] Figure 9 This is a three-dimensional structural diagram of the long groove position of the first curtain panel.

[0027] Figure 10 This is a planar sectional view of the locking component in the locked state.

[0028] Figure 11 This is a planar sectional view of the locking component in the unlocked state.

[0029] In the diagram: 1. Column; 2. First curtain panel; 3. Second curtain panel; 4. Guide rod; 5. Guide groove; 6. Positioning block; 7. Locking assembly; 71. Long groove; 72. Sealing strip; 73. Protruding rod; 74. Locking rod; 75. Locking groove; 76. Groove; 77. Spring; 8. Second sealing strip; 9. Circular groove; 10. Mounting plate; 11. Horizontal groove; 12. First sealing strip; 13. Protruding strip; 14. T-groove; 15. Slot; 16. Reinforcing assembly; 161. Anti-sway rod; 162. Mounting rod; 163. Positioning plate; 164. Mounting groove; 165. Screw. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1-6 As shown, a prefabricated building curtain wall structure is provided, including multiple columns 1 installed on the exterior wall of the building. The column 1 has a T-shaped cross section and multiple bolt holes on its web plate. The surface of the column 1 is fixedly connected to the guide rod 4 by welding, as well as an integrally formed mounting plate 10, T-shaped groove 14, mounting groove 164 and protruding rod 73. Before assembly, they are pre-processed in the factory according to the required drawings. The cross section of the guide rod 4 is trapezoidal, and the end closer to the column 1 is narrower than the end farther away from the column 1.

[0033] The finished curtain wall line, center line and elevation line of column 1 are marked on the building structure. A calibrated laser level or theodolite is used to ensure the accuracy of the installation benchmark. The base plate of column 1 (i.e. the bottom of the T-section) is fixed to the exterior wall of the building at a design interval of 1200mm using embedded parts or post-installed anchors. During fixing, it is temporarily fixed first. The verticality of column 1, the flatness and elevation of adjacent columns 1 are checked with a straightedge and level. After adjustment, all high-strength bolts are finally tightened. After the installation of column 1 is completed, a precise and stable vertical grid system is formed.

[0034] Between two adjacent columns 1, a first curtain panel 2 and three second curtain panels 3 are installed. The difference is that the first curtain panel 2 has circular grooves 9 on both sides, and a horizontal groove 11 is provided on the upper part of the inner wall of the circular groove 9. It should be noted that the two sides of the mounting plate 10 are arc-shaped and fit against the inner wall of the circular groove 9. The mounting plate 10 just passes through the center of the circle and can just pass through the inner wall of the horizontal groove 11. When installing the first curtain panel 2, the mounting plate 10 is passed through the horizontal groove 11 and enters the interior of the circular groove 9 until the end of the mounting plate 10 abuts against the inner wall of the circular groove 9. A first sealing strip 12 is adhered to the top of the first curtain panel 2. To ensure better sealing, the first sealing strip 12 has an integrally formed protrusion 13 in the middle. The protrusion 13 is stuck inside the horizontal groove 11. Then, the first curtain panel 2 is rotated to make it completely vertical. The mounting plate 10 inside the circular groove 9 can prevent the first curtain panel 2 from falling off.

[0035] It should be noted that there is no guide rod 4 at the installation position of the column 1 corresponding to the first curtain panel 2. The two sides of the first curtain panel 2 are attached to the sides of the column 1. In order to ensure the installation firmness of the first curtain panel 2 and have strong wind resistance, a locking component 7 is installed on the surface of the first curtain panel 2. The locking component 7 increases the connection firmness between the first curtain panel 2 and the column 1.

[0036] like Figures 1-2 , Figure 6 and Figures 10-11 As shown, the locking assembly 7 includes an elongated groove 71 formed on the surface of the first curtain panel 2. A sealing strip 72 for improving sealing is bonded inside the elongated groove 71. A protruding rod 73 can fit against the surface of the sealing strip 72. Four grooves 76 are formed inside the elongated groove 71. A locking rod 74 is installed inside the grooves 76 by a spring 77. A locking groove 75 is formed on the surface of the column 1 at a corresponding position. The surface of the sealing strip 72 is provided with a hole through which the end of the locking rod 74 can pass. It should be noted that the end of the locking rod 74 is tapered, and the internal shape of the locking groove 75 is adapted to the shape of the end of the locking rod 74.

[0037] After the first curtain panel 2 is installed, the locking rod 74 is pressed against the inside of the locking groove 75 by the rebound force of the spring 77. At this time, the first curtain panel 2 is difficult to rotate, thus ensuring the stability of the installation of the first curtain panel 2. It should be further noted that the first sealing strip 12 and the sealing strip 72 not only improve the sealing of the installation, but also provide space for the rotation of the first curtain panel 2. The locking rod 74 is made of magnetic metal. When unlocking is required, the locking rod 74 can be attracted by an external magnetic device, so that the locking rod 74 can be removed from the inside of the locking groove 75, and the first curtain panel 2 can be easily rotated to open.

[0038] The second curtain panel 3 has guide grooves 5 on both sides. The grooves are smooth and their cross-sectional shape is precisely matched with the trapezoidal cross-section of the guide rod 4. The surface of the column 1 has a T-shaped groove 14 corresponding to the position of the second curtain panel 3. The T-shaped head of the positioning block 6 is clearance-fitted with the T-shaped groove 14 of the column 1. The surface of the second curtain panel 3 has a slot 15. When the first curtain panel 2 is installed, the guide rod 4 is inserted into the guide groove 5 from top to bottom. Then, the second curtain panel 3 is moved to the installation position, and the positioning block 6 is locked into the slot 15. Then, the positioning block 6 is moved to lock into the T-shaped groove 14, which completes the positioning of the first curtain panel 2. At the same time, since the positioning block 6 is locked inside the second curtain panel 3, the installation stability of the second curtain panel 3 can also be guaranteed.

[0039] It should be noted that for the second curtain panel 3 below the first curtain panel 2, the top of the guide rod 4 is located at 2 / 3 of the position inside the guide groove 5 of the second curtain panel 3. The purpose is that when moving the second curtain panel 3 upward, it is not necessary to move the second curtain panel 3 completely to the installation position of the first curtain panel 2, so that the second curtain panel 3 can be directly disassembled. In order to ensure the installation stability of the second curtain panel 3 at this position, the surface of the column 1 is equipped with a reinforcing component 16.

[0040] like Figures 6-9 As shown, the reinforcement component 16 includes an anti-sway bar 161. The surface of the anti-sway bar 161 is provided with an integrally formed mounting rod 162 and a positioning plate 163. The surface of the column 1 is provided with a mounting groove 164 at the corresponding position. After the second curtain panel 3 at this position is installed, the mounting rod 162 is placed into the inside of the mounting groove 164 and moved downward to lock the anti-sway bar 161 into the inside of the guide groove 5. When the end of the anti-sway bar 161 abuts against the end of the guide rod 4, the mounting rod 162 is fixed by the screw 165. At this time, the positioning plate 163 abuts against the top of the second curtain panel 3. Then, the second sealing strip 8 is glued to the top to ensure sealing while providing rotation space for the rotation of the first curtain panel 2.

[0041] The installation process is as follows: When installing the first second curtain panel 3, one person (or using a small vacuum suction cup) lifts the second curtain panel 3 from the front to slightly above its designed installation position. Another person guides the second curtain panel 3 so that the guide grooves 5 on both sides are precisely aligned with the starting sections of the guide rods 4 on the two columns 1, starting from the bottom. After alignment, both people simultaneously and slowly lower the second curtain panel 3. Due to the self-guiding effect of the trapezoidal cross-section of the guide rods 4 and the guide grooves 5, the second curtain panel 3 can slide in smoothly. When it slides down to its bottom and contacts the lower structure (such as the decorative panel of the inter-floor beam or the top edge of the upper floor), or reaches the design elevation, the second curtain panel 3 will slide in smoothly. Timing is set, then the lowering stops. At this point, the positioning blocks 6 on both sides of the second curtain panel 3 have slid down to the corresponding T-slot 14 entrance on the column 1. Gently tap the top sides of the curtain panel with your hand or a rubber mallet to ensure the head of the positioning block 6 is horizontally embedded in the T-slot 14, guaranteeing installation stability and positioning accuracy. Then, attach the second sealing strip 8 to the top. Repeat the above steps when installing the second curtain panel 3. Repeat the above steps again when installing the third curtain panel 3, except that the positioning blocks 6 do not need to be installed on the surface of the second curtain panel 3. Then, insert the anti-sway rod 161 into the guide groove of the second curtain panel 3 from above. 5. Ensure smooth insertion. Using an Allen wrench, pass the stainless steel screw 165 through the hole in the mounting rod 162 and screw it into the pre-set threaded hole on the column 1. Tighten to the specified torque to firmly fix the reinforcing component 16. Finally, install the first curtain panel 2. The installer holds the first curtain panel 2 and aligns its top horizontal groove 11 with the mounting plate 10 above the two columns 1. Lower it smoothly until the mounting plate 10 is fully inserted into the horizontal groove 11. Then, attach the first sealing strip 12 to the top of the first curtain panel 2 to ensure a seal. Next, hold the bottom of the first curtain panel 2 and slowly rotate it towards the outside. During the rotation process, the circular grooves 9 (with arc-shaped inner walls) on both sides of the first curtain panel 2 will rotate around the arc-shaped side of the mounting plate 10 (the radius of which matches the inner radius of the circular groove 9), forming a smooth hinge movement. The first curtain panel 2 will be rotated from the open state back to the closed position. In the final closing stage, the protruding rod 73 on the column 1 will be inserted into the long groove 71 on the side of the first curtain panel 2 and compress the sealing strip 72 therein. When it is fully closed, the sound of the locking rod 74 being locked in the locking groove 75 can be heard, indicating that the first curtain panel 2 has been installed. Finally, sealant is applied to the gap and left to cure for secondary sealing (optional).

[0042] Assuming the second curtain panel 3 is damaged, use a suspended platform to approach the second curtain panel 3 that needs to be replaced. Prepare a new, intact second curtain panel 3 of the same specifications, a vacuum suction cup, a magnetic tool, and an Allen wrench. Use the magnetic tool to attach to the locking rod 74 and apply force in the opening direction to unlock the first curtain panel 2. Rotate it outward to open it to the maximum angle (e.g., 90°) and secure it with a temporary air hook to ensure unobstructed working space. Use the Allen wrench to loosen and remove the screw 165 that secures the reinforcing component 16. Remove the entire reinforcing component 16 from the mounting slot 164 and guide slot 5. The operator uses the vacuum suction cup to attach to the surface of the topmost second curtain panel 3 and pull the second curtain panel 3 upward until it can be completely removed. At this point, install the new second curtain panel 3 in the required position, following the installation process described above. At the same time, replace the new second sealing strip 8 to ensure a tight seal. Finally, rotate to close the first curtain panel 2.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A prefabricated building curtain wall structure, characterized in that: It includes multiple columns fixed to the exterior wall of the building by bolts. The columns have a T-shaped cross section. A first curtain panel and multiple second curtain panels are assembled between two adjacent columns. The first curtain panel is rotatably installed between two adjacent columns, and the multiple second curtain panels are slidably installed between two adjacent columns. The surface of the column is provided with a longitudinal guide rod, and the two sides of the second curtain panel are provided with guide grooves. The guide rod is slidably installed inside the guide groove. Positioning blocks are installed on both sides of the top of the second curtain panel. The positioning blocks are installed on the surface of the column. A second sealing strip is installed on the top of the second curtain panel. The first curtain panel has circular grooves on both sides, and the surface of the column has an integrally formed mounting plate. The two sides of the mounting plate are arc-shaped and adapted to the shape of the inner wall of the circular groove. The top of the first curtain panel has a horizontal groove, the width of which is adapted to the thickness of the mounting plate. The top of the first curtain panel is equipped with a first sealing strip, and the surface of the first sealing strip has a protrusion. The protrusion is stuck inside the horizontal groove. A locking assembly is installed between the first curtain panel and the column. The positioning block has a T-shaped cross-section, the surface of the column has a T-shaped groove, the surface of the second curtain panel has a slot, the length of the slot is not less than the length of the positioning block, one end of the positioning block is locked inside the T-shaped groove, and the bottom of the positioning block is locked inside the slot.

2. The prefabricated building curtain wall structure according to claim 1, characterized in that: The second curtain panel is provided in three parts. The length of the column is greater than that of two but less than the width of three second curtain panels. A reinforcing component is installed inside the guide groove of the topmost second curtain panel.

3. The prefabricated building curtain wall structure according to claim 2, characterized in that: The reinforcement component includes an anti-sway bar that is adapted to the inside of the guide groove. One side of the anti-sway bar is provided with an integrally formed mounting rod, and the other side of the anti-sway bar is provided with an integrally formed positioning plate. The positioning plate abuts against the surface of the top second curtain panel.

4. A prefabricated building curtain wall structure according to claim 3, characterized in that: The surface of the column is provided with an installation groove that is more than twice the length of the mounting rod, and the mounting rod is fixed inside the installation groove by a screw.

5. A prefabricated building curtain wall structure according to claim 1, characterized in that: The locking assembly includes an elongated groove formed on the surface of the first curtain panel. A sealing strip with a shape adapted to the shape of the elongated groove is installed inside the elongated groove. A protruding rod matching the elongated groove is provided at the corresponding position of the column. Multiple locking rods are installed inside the frame of the first curtain panel. A locking groove is formed on the surface of the protruding rod, and the locking rod is engaged inside the locking groove.

6. A prefabricated building curtain wall structure according to claim 5, characterized in that: The first curtain panel has a groove on its frame surface. The locking rod is installed inside the groove by a spring. The locking rod moves through the sealing strip and is inserted into the groove. The locking rod is made of a magnetic metal.

7. A prefabricated building curtain wall structure according to claim 6, characterized in that: The end of the locking rod is tapered, and the shape inside the groove is adapted to the shape of the end of the locking rod.

8. A prefabricated building curtain wall structure according to claim 1, characterized in that: The guide rod has a trapezoidal cross-section, and the internal shape of the guide groove is adapted to the shape of the guide rod.

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