A curtain wall unit connection device for quick installation and disassembly

Abstract

This utility model provides a curtain wall unit connection device for rapid installation and disassembly, comprising several steel connectors spaced apart on the structural beams of each floor and unit hangers correspondingly installed on each curtain wall unit. Specifically, the inner transverse section of the L-shaped connecting plate on the steel connector is fixedly installed on a pre-embedded bolt on the outer side of the structural beam, and the vertical section of the outer end of the L-shaped connecting plate forms a hanging plate. Each unit hanger includes two L-shaped side connecting plates, symmetrically installed on the inner side walls of the aluminum alloy frame of the curtain wall unit. Both L-shaped side connecting plates are detachably hung on both ends of the hanging plate via inverted L-shaped hanging plates on their backs. This utility model, through the modular cooperation structure of the steel connectors and unit hangers, enables rapid positioning, installation, disassembly, and maintenance of curtain wall units, offering advantages such as improved installation efficiency, rapid disassembly and maintenance, and enhanced structural stability.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a curtain wall unit connection device for rapid installation and disassembly. Background Technology

[0002] Unitized curtain walls are a modern building envelope system and represent a highly efficient form of curtain wall construction. Their core characteristic is the prefabrication of components such as the curtain wall frame, panels, and insulation layer into standardized unit modules in a factory. These modules are then transported to the site and directly hoisted and assembled to form the building facade. While the factory prefabrication of unitized curtain walls offers advantages in quality control, several technical bottlenecks remain during actual construction. Traditional connection methods typically involve on-site welding or bolt fixing. This process requires extensive high-altitude work and suffers from inherent drawbacks such as difficulty in controlling installation accuracy and challenges in disassembly and maintenance. Particularly at the connection points between structural beams and curtain wall units, current technologies often employ direct welding or complex multi-layered connection structures, resulting in low construction efficiency and difficulty in achieving standardized operations.

[0003] In terms of the specific implementation of the connection device, conventional steel connectors suffer from problems such as difficulty in positioning and adjustment and insufficient seismic performance. Meanwhile, unitized hanging systems often lack quick assembly and disassembly capabilities, failing to meet the maintainability requirements of modern building curtain wall systems. Furthermore, the mating structure between the aluminum alloy frame and connectors of existing curtain wall units is typically quite complex, increasing material costs and impacting installation efficiency. These technical deficiencies severely restrict the application of unitized curtain walls in projects with strict time constraints or requiring subsequent maintenance and renovation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a curtain wall unit connection device that can be quickly installed and disassembled, which has the advantages of improving installation efficiency, realizing rapid disassembly and maintenance, and enhancing structural stability, in order to overcome the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A curtain wall unit connection device for rapid installation and disassembly includes several steel connectors spaced apart on the structural beams of each floor and unit hangers correspondingly installed on each curtain wall unit, wherein:

[0007] The inner transverse section of the L-shaped connecting plate on the steel connector is fixedly installed on the corresponding pre-embedded bolt on the outer end side of the building structure beam, and the vertical section of the outer end of the L-shaped connecting plate is arranged to form a hanging plate.

[0008] The unit bracket includes two L-shaped side connecting plates. The two L-shaped side connecting plates are symmetrically installed on the two side walls of the inner end of the aluminum alloy frame on the curtain wall unit. Both L-shaped side connecting plates can be detachably hung on both ends of the connecting plate through inverted L-shaped hanging plates on their backs.

[0009] Preferably, the outer end surface of the building structure beam is provided with a plurality of anchoring grooves at intervals, and each anchoring groove is provided with an anchoring slide plate, wherein:

[0010] The bottom of the anchoring slide plate is provided with a number of I-shaped rivets embedded in the building structure beam at intervals, and a number of pre-embedded bolts are provided in the top groove along its length direction for limiting.

[0011] Preferably, the steel connector includes an L-shaped connecting plate and a reinforcing rib plate, wherein:

[0012] The outer end of the L-shaped connecting plate is vertically provided with the hanging plate, and the left and right ends of the hanging plate are respectively provided with first mounting holes.

[0013] The L-shaped connecting plate has second mounting holes on its left and right sides for inserting the pre-embedded bolts. The second mounting holes are square slotted holes and are fixed to the pre-embedded bolts with lock nuts.

[0014] The reinforcing rib is a triangular plate structure with one end larger than the other, and the right-angled side of the larger end is fixedly welded to the connection between the horizontal and vertical sections of the L-shaped connecting plate.

[0015] Preferably, the steel connector further includes elastic buffer members detachably disposed at both ends of the top of the mounting plate, wherein:

[0016] The cross-section of the elastic buffer is η-shaped, and a groove is provided on its top along its length. A metal gasket is provided in the groove to abut against the bottom end of the adjusting bolt.

[0017] The inner walls on both sides of the elastic buffer are provided with strip-shaped protrusions that abut against the mounting plate, and their outer ends extend downward to the lower end of the outer wall of the mounting plate.

[0018] Preferably, the outer side wall of the extended section of the outer side of the elastic buffer member is provided with an arc-shaped protrusion in the middle, the arc-shaped protrusion abuts against the L-shaped side connecting plate, and a third mounting hole corresponding to the first mounting hole is provided on it.

[0019] Preferably, the curtain wall unit is a modular assembly unit of one floor height, which consists of the aluminum alloy frame and glass units integrally installed in the aluminum alloy frame.

[0020] More preferably, the frame columns of the aluminum alloy frame consist of a first column and a second column arranged opposite each other on the left and right, wherein:

[0021] The first column and the second column are connected by a snap-fit, and the two outer side walls at their inner ends are respectively fixedly connected to L-shaped side connecting plates, and the glass units are respectively fixedly installed on the two side walls at their outer ends.

[0022] Preferably, the unit bracket includes two sets of L-shaped side plates arranged symmetrically from left to right, a first locking bolt, and a second locking bolt, wherein:

[0023] The L-shaped side connecting plate is a plate structure with an L-shaped cross-section. Several fourth mounting holes are provided on its outer side plate, and a fifth mounting hole is provided on its inner side plate. The fifth mounting hole is a square waist hole.

[0024] The first locking bolt consists of several bolts, which are inserted into the corresponding fourth mounting holes, and the outer side plates of the two L-shaped side connecting plates are fixedly installed on the two side walls of the inner end of the aluminum alloy frame.

[0025] The second locking bolt consists of two bolts, which are inserted into the corresponding fifth mounting hole, third mounting hole and first mounting hole, and the inner side plates of the two L-shaped side connecting plates are adjustablely mounted on the L-shaped connecting plate.

[0026] Preferably, the upper end of the inverted L-shaped hanging plate is a square block structure, which is fixedly installed at the upper end of the back of the L-shaped side connecting plate, and has threaded holes.

[0027] More preferably, the unit hanger further includes adjusting bolts correspondingly installed on the tops of the two inverted L-shaped hanging plates, wherein:

[0028] The lower end of the adjusting bolt is connected to the elastic buffer that passes through the threaded hole and abuts against the top of the mounting plate, and the upper end is threaded with an adjusting nut.

[0029] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0030] The curtain wall unit connection device for rapid installation and disassembly provided by this utility model mainly consists of several steel connectors installed at intervals on the structural beams of each floor and unit hangers installed on each curtain wall unit. Through the modular cooperation structure of the steel connectors and unit hangers, the curtain wall unit can be quickly positioned, installed, disassembled, and maintained. It has the advantages of improving installation efficiency, achieving rapid disassembly and maintenance, and enhancing structural stability. It can significantly reduce on-site workload, shorten the construction cycle, and is convenient and quick to install. The building curtain wall installed using this connection device has better air tightness and water tightness, controllable quality, and convenient on-site management. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the installation structure of a curtain wall unit connection device for rapid installation and disassembly in the construction of a building curtain wall. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the installation structure of a curtain wall unit connection device for rapid installation and disassembly in the construction of a building curtain wall. Figure 2 ;

[0033] Figure 3 This is a three-dimensional structural diagram of a curtain wall unit connection device for rapid installation and disassembly according to the present invention. Figure 1 ;

[0034] Figure 4 This is a three-dimensional structural diagram of a curtain wall unit connection device for rapid installation and disassembly according to the present invention. Figure 2 ;

[0035] Figure 5 This is a partially enlarged structural diagram of part A in the curtain wall unit connection device for rapid installation and disassembly according to this utility model;

[0036] Figure 6 This is a schematic diagram of the main structure of a curtain wall unit connection device for quick installation and disassembly according to the present invention;

[0037] Figure 7 This is a left-side structural schematic diagram of a curtain wall unit connection device for rapid installation and disassembly according to the present invention;

[0038] Figure 8 This is a top view of the curtain wall unit connection device for rapid installation and disassembly according to the present invention.

[0039] Figure 9 This is a structural schematic diagram of the steel connector in a curtain wall unit connection device for rapid installation and disassembly according to this utility model;

[0040] Figure 10 This is a schematic diagram of the unit hanger in a curtain wall unit connection device for quick installation and disassembly according to the present invention;

[0041] The accompanying figures are labeled as follows:

[0042] 100 - Building structural beam, 101 - Anchor groove, 102 - Anchor plate, 103 - I-shaped rivet, 104 - Embedded bolt;

[0043] 200-Steel connector, 210-L-shaped connecting plate, 211-Hanging plate, 212-Second mounting hole, 213-Locking nut, 214-First mounting hole, 220-Reinforcing rib plate, 230-Elastic buffer, 231-Groove, 232-Metal gasket, 233-Strip protrusion, 234-Arc protrusion, 235-Third mounting hole;

[0044] 300 - Curtain wall unit, 310 - Aluminum alloy frame, 311 - First column, 312 - Second column, 320 - Glass unit;

[0045] 400 - Unit hanger, 410 - L-shaped side connecting plate, 411 - Inverted L-shaped hanging plate, 412 - Threaded hole, 413 - Fourth mounting hole, 414 - Fifth mounting hole, 420 - First locking bolt, 430 - Second locking bolt, 440 - Adjusting bolt, 441 - Adjusting nut. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0047] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0048] In existing technologies, unitized curtain walls are generally installed by welding or bolting to the building structure, which involves a large amount of high-altitude work and complex procedures. Traditional connectors are usually integral structures, requiring multi-angle adjustments after the curtain wall units are hoisted, making it difficult to control installation accuracy. When the curtain wall panels are damaged, the disassembly process requires destroying the original connection structure, leading to increased maintenance costs.

[0049] To address the aforementioned issues, it was found that traditional connection methods demand high technical skills from construction workers, and installation efficiency is limited by site conditions. Analysis revealed that the reversible design of the connection structure effectively solves disassembly challenges, while symmetrical double-sided supports enhance installation stability. Further research showed that combining a pre-embedded positioning structure with modular mounting components enables rapid alignment and installation of curtain wall units.

[0050] Therefore, based on the above design concept, such as Figure 1 and Figure 2As shown, this application proposes a curtain wall unit connection device for rapid installation and disassembly, which includes steel connectors 200 spaced apart on the building structural beam 100 and unit hangers 400 disposed on the curtain wall unit 300. The inner end of the L-shaped connecting plate 210 of the steel connector 200 is fixed to the building structural beam 100 by pre-embedded bolts 104, and the outer end forms a vertical hanging plate 211. The unit hanger 400 includes L-shaped side connecting plates 410 symmetrically installed on both sides of the aluminum alloy frame 310, and its back is provided with inverted L-shaped hanging plates 411 that are hung on both ends of the hanging plates 211.

[0051] Among them, steel connector 200 refers to a metal component that forms a rigid connection with the building structure beam 100 through pre-embedded bolts 104. Specifically, it can be an L-shaped connecting plate made of steel, with square waist holes in its horizontal section to allow for fine adjustment of the installation position. Unit hanger 400 refers to a suspension component that is integrated and installed with the upper frame of the curtain wall unit 300. Specifically, it can be an L-shaped side connecting plate made of aluminum alloy, with an inverted L-shaped hanging plate 411 welded to its back to form a two-way snap-fit ​​structure. The inverted L-shaped hanging plate 411 refers to a metal component with an inverted L-shaped cross-section. Specifically, it can be a thick steel plate formed by laser cutting, with its horizontal section extension length greater than the thickness of the hanging plate 211 to achieve a clearance fit.

[0052] Specifically, the steel connector 200 achieves a reliable connection with the building structure beam 100 through pre-embedded bolts 104, and its vertically arranged hanging plate 211 provides a double-sided support interface for the unit hanger 400. During the hoisting of the curtain wall unit 300, the inverted L-shaped hanging plate 411 slides in along the top of the hanging plate 211, forming surface contact with the front and rear sides of the hanging plate 211. After installation, the self-weight of the curtain wall unit 300 is evenly transferred to the building structure through the double-sided hanging structure, and the horizontal load is borne by the interlocking structure between the inverted L-shaped hanging plate 411 and the hanging plate 211. Disassembly can be achieved by vertically lifting the curtain wall unit 300, without damaging the connection structure.

[0053] Compared to existing technologies, traditional curtain wall connections require on-site welding or bolting. This solution achieves non-destructive assembly and disassembly through a prefabricated hanging structure. In existing technologies, single-point suspension can easily lead to curtain wall unit deflection; this solution uses symmetrical double-sided supports to effectively control the installation posture.

[0054] Through the above technical solutions, this application achieves precise positioning of the curtain wall unit 300 in a single hoisting operation, eliminating the need for high-altitude fastening. The double-sided hanging structure ensures the verticality of the curtain wall unit 300, avoiding secondary adjustments after installation. The reversible connection method facilitates later maintenance and replacement, significantly reducing construction safety risks. The modular design allows the connecting components to adapt to different specifications of curtain wall units, improving the standardization of construction.

[0055] In some of these embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application further proposes that a plurality of anchoring grooves 101 are provided at intervals on the surface of the outer end of the building structural beam 100, and each anchoring groove 101 is provided with an anchoring slide plate 102. A plurality of I-shaped rivets 103 embedded in the building structural beam 100 are provided at intervals at the bottom of the anchoring slide plate 102, and a plurality of pre-embedded bolts 104 are provided along the length direction in the top groove.

[0056] The anchoring groove 101 refers to a groove structure opened on the outer surface of the structural beam 100, which can be achieved by machining or casting, and serves as an installation base for the anchoring slide plate 102. The anchoring slide plate 102 is a plate-shaped component embedded in the anchoring groove 101, which can be made of steel plate. Its bottom is anchored to the structural beam 100 at multiple points by I-shaped rivets 103, and its top groove accommodates the lateral movement of the embedded bolts 104. The I-shaped rivet 103 is a metal connector with an I-shaped cross-section, which can be made of hot-rolled steel. Its two ends are embedded in the concrete of the structural beam and welded to the anchoring slide plate 102, respectively, increasing the contact area and improving shear resistance. The groove is a strip-shaped channel opened along the length of the top of the anchoring slide plate 102, which can be a milled U-shaped groove with a width slightly larger than the diameter of the embedded bolts 104, allowing for position adjustment by restricting the movement direction of the bolts.

[0057] Specifically, the anchoring slide plate 102 forms a multi-point rigid connection with the building structural beam 100 through the I-shaped rivets 103 at the bottom, ensuring that the overall anchoring strength meets the load-bearing requirements of the curtain wall unit 300. The top groove structure allows the embedded bolts 104 to be continuously adjusted along their length. When there are deviations in the dimensions of the curtain wall unit 300 or when the installation position needs to be fine-tuned, the embedded bolts 104 can be slidably adjusted to fit the connection point position. The special cross-sectional shape of the I-shaped rivets 103 forms a mechanical interlock during concrete pouring, effectively resisting the shear force generated by the suspension of the curtain wall unit 300. The limiting function of the groove for the embedded bolts 104 ensures stability during the adjustment process and prevents the bolts from undergoing unexpected displacement under wind loads.

[0058] Through the above technical solution, this application achieves the continuously adjustable position of the pre-embedded bolt 104, solving the technical defect of poor adaptability of traditional fixed connection points. The combined structure of the anchoring slide plate 102 and the I-beam rivet 103, while ensuring connection strength, allows the installation position of the curtain wall unit 300 to be flexibly adjusted according to actual working conditions, reducing the requirements for the accuracy of building structure construction. The matching design of the sliding groove and the pre-embedded bolt 104 simplifies the positioning operation during installation, reducing the position adjustment time of a single connection point to 30% of the traditional method.

[0059] In some of these embodiments, such as Figure 3 , Figure 4 , Figure 8 and Figure 9 As shown, this application further proposes a steel connector 200 including an L-shaped connecting plate 210 and a reinforcing rib plate 220. A hanging plate 211 is vertically arranged at the outer end of the L-shaped connecting plate 210, and first mounting holes 214 are respectively opened at the left and right ends of the hanging plate 211; second mounting holes 212 for inserting pre-embedded bolts 104 are respectively opened on the left and right sides of the inner end of the L-shaped connecting plate 210, and the second mounting holes 212 are square slotted holes, which are fixedly installed on the pre-embedded bolts 104 using lock nuts 213; the reinforcing rib plate 220 is a triangular plate structure with one end larger than the other, and its right-angled side at the larger end is fixedly welded to the connection point of the horizontal and vertical sections at the top of the L-shaped connecting plate 210.

[0060] The square waist hole refers to a rectangular opening structure extending horizontally, which can be processed by laser cutting or stamping. The elongated hole shape provides horizontal adjustment margin for the installation of the embedded bolt 104. The locking nut 213 is a fastener with an anti-loosening structure, which can be implemented using double nuts or nylon insert nuts. It secures the steel connector 200 to the final installation position on the embedded bolt 104 through threaded locking force. The reinforcing rib plate 220 is a support plate with an overall right-angled triangular cross-section, specifically a rectangular inner end and a right-angled triangular outer end, used to distribute stress at the turning point of the L-shaped connecting plate 210.

[0061] Specifically, during installation, after the pre-embedded bolts 104 pass through the square slots of the second mounting hole 212, the steel connector 200 is allowed to move back and forth horizontally to adjust its position. When the steel connector 200 is adjusted to the target position, the locking nut 104 is tightened to fix the connector. The first mounting holes 214 at both ends of the mounting plate 211 form symmetrical load transfer points, ensuring even distribution of the curtain wall unit's weight. The reinforcing rib 220, through double-sided welding of its right-angled sides to the horizontal and vertical sections of the L-shaped connecting plate 210, forms a continuous support structure at the junction of the connecting plate, enhancing its bending resistance. The welding area at the larger end of the triangular plate structure provides a larger contact area, effectively dispersing the concentrated stress generated by the self-weight of the curtain wall unit 300.

[0062] Through the above technical solution, this application solves the problems of limited adjustment of the installation position and insufficient structural strength of the steel connector 200. The square waist hole cooperates with the locking nut 213 to achieve precise adjustment of the front and rear horizontal position, eliminating the influence of building structure errors on installation accuracy; the triangular reinforcing rib plate 220 enhances the structural stability of the connecting plate at the turning point through double-sided welding, preventing deformation of the connection part caused by the self-weight of the curtain wall unit 300. No on-site cutting or welding is required during installation, and rapid positioning and reliable fixing are achieved through standardized components.

[0063] In some of these embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, this application further proposes that the steel connector (200) also includes elastic buffer members 230 that are detachably disposed at both ends of the top of the mounting plate 211. The cross-section of the elastic buffer member 230 is η-shaped, and a groove 231 is provided on its top along its length. A metal gasket 232 that abuts against the bottom end of the adjusting bolt 440 is provided in the groove 231. The inner sidewalls on both sides of the elastic buffer member 230 are provided with strip-shaped protrusions 233 that abut against the mounting plate, and their outer ends extend downward to the lower end of the outer sidewall of the mounting plate 211.

[0064] The η-shaped structure refers to a cross-section resembling the Greek letter η, which can be molded from elastic rubber or polyurethane material. Its top groove 231 provides space for the adjusting bolt 440. The metal gasket 232 is a rigid support component set within the groove 231, which can be stamped from stainless steel sheet and used to distribute the localized pressure applied by the adjusting bolt 440. The strip-shaped protrusion 233 is a linear protrusion extending laterally along the inner wall of the elastic buffer, which can be an integrally formed rib with the buffer and used to limit the relative displacement between the buffer and the mounting plate 211. The outer end extension refers to the portion of the elastic buffer extending downwards to cover the lower end of the outer wall of the mounting plate 211. It can be made of elastic material bent downwards to form a covering structure, used to prevent the buffer from detaching from the mounting plate 211 under stress.

[0065] Specifically, the η-shaped elastic buffer 230 forms an adjustable elastic support interface through the combination of the top groove 231 and the metal pad 232. When the adjusting bolt 440 applies preload, the metal pad 232 evenly transmits the pressure to the bottom of the groove 231, preventing stress concentration caused by the bolt tip directly pressing on the elastic material. The strip protrusion 233 forms a line contact constraint with the side wall of the mounting plate 211, allowing the buffer to undergo radial elastic deformation while restricting its axial sliding. This composite structure absorbs vibration energy through the deformation of the elastic material and maintains the geometric stability of the connection device through rigid limiting components.

[0066] Through the above technical solutions, this application achieves a flexible connection between the curtain wall unit 300 and the building structure 100, reducing local stress concentration caused by rigid contact during installation. The elastic buffer 230 absorbs vibration energy through deformation, reducing the risk of damage to the connection node caused by wind loads or seismic forces. The combined limiting structure of the strip protrusion 233 and the extension section ensures the positional stability of the buffer during long-term use, avoiding the problem of easy detachment of traditional buffer pads. The cooperation between the metal pad 232 and the adjusting bolt 440 makes the preload of the connection device adjustable and evenly distributed, improving the overall structural stability of the curtain wall unit 300 after installation.

[0067] In addition, such as Figure 9 As shown, this application further proposes that an arc-shaped protrusion 234 is laterally provided in the middle of the outer side wall of the outer end extension of the elastic buffer 230. The arc-shaped protrusion 234 abuts against the L-shaped side connecting plate 410 and is provided with a third mounting hole 235 corresponding to the first mounting hole 214.

[0068] The arc-shaped protrusion refers to the arc-shaped contact structure laterally positioned in the middle of the outer wall of the elastic buffer 230. It is made of metal or polymer material through a stamping or injection molding process, and its arc curvature radius can range from 5 to 15 mm. It disperses the concentrated stress generated by vibration transmission by increasing the contact area. The third mounting hole 235 is a through hole whose axis coincides with the first mounting hole 214 on the hanging plate 211 of the steel connector 200. It forms a double positioning structure by bolt connection.

[0069] Specifically, the arc-shaped protrusion 234 on the outer end of the elastic buffer 230 forms surface contact with the inner wall of the L-shaped side connecting plate 410. When the curtain wall unit 300 is subjected to wind load, the arc-shaped contact surface converts the lateral shear force into elastic deformation energy, and the deformation is controlled by the elastic modulus of the material. The third mounting hole 235 is connected to the first mounting hole 214 by bolts. During the installation process, the third mounting hole 235 can be used for pre-positioning, and then the bolts can be used to complete the final fixation.

[0070] In some of these embodiments, such as Figure 1 As shown, this application further proposes that the curtain wall unit 300 is a modular assembly unit of one floor height, which consists of an aluminum alloy frame 310 and a glass unit 320 integrally installed in the aluminum alloy frame 310.

[0071] The modular assembly unit refers to an independent functional module that is fully assembled in the factory. Specifically, it can be achieved by pre-assembling standardized aluminum alloy profiles and glass panels. By disassembling the curtain wall unit into independent modules, it meets the width restrictions for road transport. The floor height refers to the vertical dimension of the curtain wall unit 300 matching the building's floor height. This can be achieved by customizing the unit height after measuring the building structure, avoiding on-site cutting and adjustment. The aluminum alloy frame 310 refers to the supporting skeleton composed of extruded aluminum alloy profiles. Specifically, it can be achieved by using 6063-T5 aluminum alloy profiles connected by corner brackets to form a rectangular frame structure, utilizing the lightweight properties of aluminum alloy to reduce the overall weight.

[0072] Specifically, the curtain wall unit 300 completes the assembly of the aluminum alloy frame 310 and the installation of the glass units 320 during the factory prefabrication stage, forming an independent module with complete functions. The aluminum alloy frame 310 is spliced ​​with profiles to form a rectangular frame with the same height as the building floor. The glass units 320 are bonded to the outside of the frame with structural adhesive, and mechanical fixation blocks are set on the inside for mechanical fixation. The maximum width of the modular assembly unit is controlled within the transportation restrictions, for example, a unit width of 1.5 meters to 1.8 meters can be used. After being transported to the construction site, the curtain wall unit 300, covering the entire floor height, is directly lifted to the corresponding installation position by mechanical hoisting equipment and hooked onto the connecting device on the building structural beam.

[0073] Compared to existing technologies, traditional segmented curtain walls require on-site alignment and splicing of multiple units, resulting in complex and time-consuming joint treatment processes. The modular design, with its integrated floor-height structure, allows curtain wall units to be installed directly to the building's floor height, eliminating the need for on-site cutting and adjustments. Existing technologies, which involve transporting the frame and glass separately and assembling them on-site, often lead to inconsistent sealant application quality. This integrated installation solution, however, completes the sealing process in a controlled factory environment, ensuring airtightness at the joints.

[0074] Through the above technical solutions, this application solves the problem of limited transportation dimensions in modular assembly of unitized curtain walls, and meets the conventional transportation conditions by limiting the unit width; it improves on-site installation efficiency, and the unit can be directly hoisted into place without adjustment after the floor height; it enhances structural stability, and the prefabricated overall structure in the factory avoids stress concentration caused by on-site splicing.

[0075] In addition, such as Figure 3 As shown, this application further proposes that the frame columns of the aluminum alloy frame 310 are composed of a first column 311 and a second column 312 arranged opposite to each other on the left and right sides. The first column 311 and the second column 312 are connected by a snap-fit, and the two outer side walls at their inner ends are respectively fixedly connected to L-shaped side connecting plates 410. Glass units 320 are respectively fixedly installed on the two side walls at their outer ends.

[0076] The first column 311 and the second column 312, arranged opposite each other on the left and right, refer to a split-type symmetrical column structure. Specifically, this can be achieved by extruding aluminum alloy profiles and cutting them into independent components. The split design facilitates independent processing and installation. The snap-fit ​​connection refers to a tool-free assembly method achieved through a mechanical interlocking structure. Specifically, this can be achieved by setting a slot on the inner side of the column and a matching protrusion on the outer side, avoiding the use of welding or bolts for fixing. The glass unit 320 is fixedly installed on both outer side walls, meaning a glass recess structure is set on the outer side of the column. Specifically, this can be achieved by using a combination of rubber sealing strips and pressure plates for fixing, allowing the glass unit 320 to be embedded and locked in place by the pressure plates.

[0077] Specifically, during factory assembly, the separate first column 311 and second column 312 are quickly assembled into a complete frame using a snap-fit ​​structure. During operation, simply align the slots and protrusions of the two columns and push them in to lock. An L-shaped side connecting plate 410 is welded to the outer wall of the inner end of each column, allowing the curtain wall unit 300 to be reliably connected to the building structure 100 via this connection point. When installing the glass unit 320, the glass is first inserted into the groove with a rubber pad in the glass recess at the outer end of the column, and then fixed with uniform pressure applied by a pressure plate, avoiding localized stress concentration. This structure separates the frame assembly from the glass installation process, allowing installers to complete the frame assembly first and then independently perform the glass fixing work.

[0078] In some of these embodiments, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this application further proposes a unit bracket 400 comprising two sets of L-shaped side connecting plates 410 arranged symmetrically from left to right, a first locking bolt 420, and a second locking bolt 430. The L-shaped side connecting plate 410 is a plate-like structure with an L-shaped cross-section. Several fourth mounting holes 413 are provided on its outer side plate, and a fifth mounting hole 414 is provided on its inner side plate. The fifth mounting hole 414 is a square slotted hole. Several first locking bolts 420 are inserted into the corresponding fourth mounting holes 413, fixing the outer side plates of the two L-shaped side connecting plates 410 to the two side walls of the inner end of the aluminum alloy frame 310. Two second locking bolts 330 are inserted into the corresponding fifth mounting hole 314, third mounting hole 235, and first mounting hole 214, allowing the inner side plates of the two L-shaped side connecting plates 410 to be adjustablely mounted on the L-shaped connecting plate 210.

[0079] The L-shaped side connecting plate 410 refers to a metal sheet with a right-angle bend in cross-section, which can be achieved using an aluminum alloy extrusion molding process. Its outer and inner side plates form a right-angle support structure to distribute the load transmitted by the curtain wall unit 300. The fourth mounting hole 413 refers to circular through holes spaced apart along the length of the outer side plate, used to cooperate with the first locking bolt 420 to form a rigid fixed connection. The fifth mounting hole 430 refers to a rectangular elongated hole opened on the inner side plate, allowing lateral position adjustment through a square waist-hole structure to compensate for installation errors. The first locking bolt 420 is a mechanical fastener with a hexagonal head, and the second locking bolt 430 is a double-ended bolt with a flat washer, forming an adjustable three-point connection through multiple sets of mounting holes.

[0080] Specifically, during installation, the two sets of L-shaped side connecting plates 410 are fixed to predetermined positions on both sides of the aluminum alloy frame 310 through the fourth mounting hole 413 of the outer side plate and the first locking bolt 420, forming a stable foundation support structure. When the fifth mounting hole 414 of the inner side plate is connected to the first mounting hole 214 on the steel connector 200 through the second locking bolt 430, the square waist hole allows the L-shaped side connecting plate 410 to move up and down, realizing fine adjustment of the vertical position of the curtain wall unit. After the second locking bolt 430 passes through the fifth mounting hole 414, the third mounting hole 235 of the elastic buffer 230 and the first mounting hole 214 of the steel connector 200, the nuts are tightened to make the components fit tightly together, forming multi-point rigid constraints. The integrated design of the inverted L-shaped hanging plate 411 and the back of the L-shaped side connecting plate 410 forms a bidirectional vertical limit after the second locking bolt 430 is locked, preventing the curtain wall unit 300 from shifting under wind load.

[0081] Through the above technical solutions, this application achieves rapid positioning and precise adjustment of curtain wall unit hangers, eliminating installation difficulties caused by structural errors in the building. The symmetrical L-shaped side connecting plate 410 and the double bolt locking mechanism enhance the shear resistance of the connection nodes, preventing the curtain wall unit 300 from loosening under dynamic loads. The detachable bolt connection simplifies the maintenance and replacement process, allowing unit disassembly without damaging the main structure.

[0082] In addition, such as Figure 5 and Figure 7 As shown, this application further proposes that the upper end of the inverted L-shaped mounting plate 411 is a square block structure, fixedly installed at the upper end of the back of the L-shaped side connecting plate 410, and has a threaded hole 412. The square block structure refers to the regular geometric shape formed at the top of the inverted L-shaped mounting plate 411, which can be achieved by cutting and welding steel plates, and its planar contact surface can increase the contact area with the connecting parts. The threaded hole 412 is an internal threaded through hole that penetrates the top of the mounting plate, providing a detachable threaded interface for the adjusting bolt 440.

[0083] Specifically, the top plane of the square block structure forms a surface contact with the mounting plate 211. Under the self-weight of the curtain wall unit 300, its geometric stiffness can resist local deformation of the mounting area. When the mounting plate is fixed to the upper end of the back of the side connecting plate, the vertical load is transferred to the main structure through the shortest path, avoiding the generation of lateral bending moment. The cooperation between the threaded hole 412 and the adjusting bolt 440 allows the curtain wall unit 300 to be finely adjusted in the height direction by rotating the adjusting bolt during installation. At the same time, the threaded engagement prevents the bolt from loosening under vibration.

[0084] Accordingly, in some of these embodiments, such as Figure 5 , Figure 7 and Figure 10 As shown, this application further proposes that the unit hanger 400 also includes an adjusting bolt 440 correspondingly installed on the top of the two inverted L-shaped hanging plates 410. The lower end of the adjusting bolt 440 is connected to the elastic buffer 230 that passes through the threaded hole 412 and abuts against the top of the hanging plate 211, and the upper end is threaded with an adjusting nut 441.

[0085] The adjusting bolt 440 is a threaded rod-shaped fastener, typically made of stainless steel, which is screwed into the threaded hole 412 of the inverted L-shaped mounting plate. Its lower end forms an adjustable contact surface with the elastic buffer 230. This structure achieves precise control of vertical displacement through threaded transmission, compensating for installation errors and absorbing structural deformation. The elastic buffer 230 is a contact component with elastic deformation capability, typically made of rubber or polyurethane with an η-shaped cross-section. A metal washer 232 in the top groove 231 disperses the local pressure of the adjusting bolt 440, while the strip-shaped protrusions 233 on both sides provide elastic contact with the mounting plate 211, absorbing displacement caused by structural deformation through its own deformation. The adjusting nut 441 is a hexagonal nut that mates with the threaded upper end of the adjusting bolt 440. It can be a lock-lock nut structure, locking the extension length of the adjusting bolt 440 through tightening to prevent loosening of the threads due to vibration.

[0086] Specifically, after the curtain wall unit 300 is installed, when the building structure undergoes thermal expansion and contraction or load deformation, the elastic buffer 230 absorbs the relative displacement between the mounting plate 211 and the inverted L-shaped mounting plate 411 through its own compression or rebound. When there are construction and installation errors, the lower end of the adjusting bolt 440 is rotated to change its extension length, causing the elastic buffer 230 to deform and making the contact pressure between the inverted L-shaped mounting plate 411 and the mounting plate 211 reach a predetermined value. After adjustment, the adjusting nut 441 is tightened to fix the bolt position. During this process, the continuous elastic force of the elastic buffer 230 maintains the tightness of the contact surface, and the metal gasket 232 prevents the bolt end from directly pressing the elastic material and causing permanent deformation.

[0087] Through the above technical solution, this application solves the problem of loose contact between connectors caused by structural deformation or construction errors after the installation of curtain wall units, ensuring that the inverted L-shaped mounting plate and the mounting plate always maintain a predetermined contact pressure. This adjustment structure is easy to operate and can be maintained at any stage after installation, reducing the frequency of maintenance caused by loose contact.

[0088] In summary, combining Figures 1 to 10 As shown, the curtain wall unit connection device for rapid installation and disassembly provided by this utility model has the core solution of achieving rapid positioning, installation, disassembly and maintenance of the curtain wall unit 300 through the modular cooperation structure of the steel connector 200 and the unit hanger 400. It has the advantages of improving installation efficiency, achieving rapid disassembly and maintenance, and enhancing structural stability. It can significantly reduce on-site workload, shorten the construction cycle, and is convenient and quick to install. The building curtain wall installed using this connection device has better air tightness and water tightness, controllable quality, and convenient on-site management.

[0089] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0090] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0091] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A curtain wall unit connection device for rapid installation and disassembly, characterized in that, It includes several steel connectors (200) spaced apart and installed on the structural beams (100) of each floor, and unit hangers (400) correspondingly installed on each curtain wall unit (300), wherein: The inner transverse section of the L-shaped connecting plate (210) on the steel connector (200) is fixedly installed on the corresponding pre-embedded bolt (104) on the outer side of the building structure beam (100), and the vertical section of the outer end of the L-shaped connecting plate (210) is arranged to form a hanging plate (211). The unit bracket (400) includes two L-shaped side connecting plates (410). The two L-shaped side connecting plates (410) are symmetrically installed on the two side walls of the inner end of the aluminum alloy frame (310) of the curtain wall unit (300). The two L-shaped side connecting plates (410) can be detachably hung on both ends of the hanging plate (211) through the inverted L-shaped hanging plate (411) provided on their backs.

2. The curtain wall unit connection device according to claim 1, characterized in that, The outer end surface of the building structural beam (100) is provided with a plurality of anchoring grooves (101) at intervals, and each anchoring groove (101) is provided with an anchoring slide plate (102), wherein: The bottom of the anchoring slide plate (102) is provided with a number of I-shaped rivets (103) embedded in the building structure beam (100) at intervals, and a number of pre-embedded bolts (104) are provided in the top groove along its length direction.

3. The curtain wall unit connection device according to claim 1, characterized in that, The steel connector (200) includes an L-shaped connecting plate (210) and a reinforcing rib plate (220), wherein: The L-shaped connecting plate (210) is vertically provided with the hanging plate (211) at its outer end, and the hanging plate (211) is provided with first mounting holes (214) at its left and right ends respectively; The L-shaped connecting plate (210) has second mounting holes (212) on the left and right sides of its inner end for passing through the pre-embedded bolt (104). The second mounting holes (212) are square waist holes and are fixedly installed on the pre-embedded bolt (104) by locking nuts (213). The reinforcing rib plate (220) is a triangular plate structure with one end larger than the other. The right-angled side of the larger end is fixedly welded to the connection between the horizontal and vertical sections of the L-shaped connecting plate (210).

4. The curtain wall unit connection device according to claim 1, characterized in that, The steel connector (200) further includes elastic buffers (230) detachably disposed at both ends of the top of the mounting plate (211), wherein: The cross-section of the elastic buffer (230) is η-shaped, and a groove (231) is provided on its top along its length. A metal gasket (232) is provided in the groove (231) to abut against the bottom end of the adjusting bolt (440). The inner sidewalls on both sides of the elastic buffer (230) are provided with strip-shaped protrusions (233) that abut against the hanging plate (211), and their outer ends extend downward to the lower end of the outer sidewall of the hanging plate (211).

5. The curtain wall unit connection device according to claim 4, characterized in that, An arc-shaped protrusion (234) is provided laterally in the middle of the outer side wall of the outer end extension of the elastic buffer (230). The arc-shaped protrusion (234) abuts against the L-shaped side connecting plate (410) and has a third mounting hole (235) corresponding to the first mounting hole (214).

6. The curtain wall unit connection device according to claim 1, characterized in that, The curtain wall unit (300) is a modular assembly unit of floor height, which consists of the aluminum alloy frame (310) and the glass unit (320) integrally installed in the aluminum alloy frame (310).

7. The curtain wall unit connection device according to claim 6, characterized in that, The aluminum alloy frame (310) consists of a first column (311) and a second column (312) arranged opposite to each other on the left and right sides, wherein: The first column (311) and the second column (312) are connected by a snap-fit, and the two outer side walls at their inner ends are respectively fixedly connected to L-shaped side connecting plates (410), and the glass units (320) are respectively fixedly installed on the two side walls at their outer ends.

8. The curtain wall unit connection device according to claim 1, characterized in that, The unit bracket (400) includes two sets of L-shaped side connecting plates (410) arranged symmetrically from left to right, a first locking bolt (420) and a second locking bolt (430), wherein: The L-shaped side connecting plate (410) is a plate structure with an L-shaped cross-section. Several fourth mounting holes (413) are provided on its outer side plate, and a fifth mounting hole (414) is provided on its inner side plate. The fifth mounting hole (414) is a square waist hole. The first locking bolt (420) consists of several bolts, which are inserted into the corresponding fourth mounting holes (413) and fix the outer side plates of the two L-shaped side connecting plates (410) to the two side walls of the inner end of the aluminum alloy frame (310). The second locking bolt (430) consists of two bolts, which are inserted into the corresponding fifth mounting hole (414), third mounting hole (235) and first mounting hole (214), and the inner side plates of the two L-shaped side connecting plates (410) are adjustablely mounted on the L-shaped connecting plate (210).

9. The curtain wall unit connection device according to claim 8, characterized in that, The upper end of the inverted L-shaped hanging plate (411) is a square block structure, which is fixedly installed at the upper end of the back of the L-shaped side connecting plate (410), and has a threaded hole (412) on it.

10. The curtain wall unit connection device according to claim 9, characterized in that, The unit bracket (400) also includes adjusting bolts (440) corresponding to the tops of the two inverted L-shaped mounting plates (411), wherein: The lower end of the adjusting bolt (440) is connected to the elastic buffer (230) that passes through the threaded hole (412) and is attached to the top of the hanging plate (211), and the upper end is threaded with an adjusting nut (441).

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