A hoisting system for a circular-arc glass curtain wall

Abstract

The present application belongs to the technical field of building curtain wall installation, and discloses a hoisting system for a circular-arc glass curtain wall, which comprises a turnover tool and a hoisting tool, the turnover tool being used to adjust the circular-arc glass to be vertical or inclined, and facilitating the hoisting tool to constrain and fix the circular-arc glass. The hoisting tool can constrain and hoist the circular-arc glass, and in the hoisting process, the hoisting tool can control the clamping module to switch between the posture stabilizing mode and the clamping mode through the centralized control module, so that the clamping module cooperates with the adsorption module to realize multiple protection of the circular-arc glass. The present application provides support and constraint for the circular-arc glass in the turnover process of the circular-arc glass through the turnover tool, eliminates the risk of slipping and toppling in the traditional method, and does not need manual assistance. The hoisting tool realizes safety redundancy, and when the adsorption module fails, the clamping module can clamp the circular-arc glass, so that the circular-arc glass does not fall, and the safety and reliability in the installation process of the arc-shaped glass are effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of building curtain wall installation technology, and in particular to a hoisting system for curved glass curtain walls. Background Technology

[0002] In curved glass curtain wall projects, the installation and placement of large-sized curved glass panels is one of the most critical aspects of construction. When the glass panels are transported to the site, they are usually stacked horizontally. Before hoisting and installation, the glass must be flipped from a horizontal position to a vertical position.

[0003] The common practice is to use slings to secure the glass, and then use a crane to slowly lift one end of the glass, rotating it around its bottom edge until it is vertical. However, because the center of gravity of curved glass shifts with the rotation angle, the slings are prone to slipping, and the glass may suddenly tip over or swing during the rotation. Furthermore, construction workers often need to be close enough to manually assist with the rotation; if the glass becomes uncontrollable, it can easily lead to serious injuries or fatalities.

[0004] Another method is to use suction cup lifters for lifting and flipping. Existing suction cup lifters typically have their suction cups installed at a fixed angle, with the position and orientation of the suction cup end face relatively fixed. When the glass surface is curved, it is difficult for the suction cup end face to remain parallel to the tangential plane at each contact point with the curved glass surface. This results in an inability to form an effective seal between the suction cup and the glass, a significant reduction in the adsorption area, insufficient vacuum, and an actual adsorption force far lower than the nominal value, posing a serious safety hazard.

[0005] Furthermore, in traditional suction cup lifting devices, all suction cups typically share a single vacuum pipeline. During use, if a leak occurs in the main pipeline or the vacuum pump malfunctions, the vacuum level within the entire suction cup system will drop simultaneously. All suction cups may lose their suction function at the same time, causing the glass to suddenly fall during lifting or flipping, threatening the safety of construction personnel and damaging the equipment.

[0006] The aforementioned issues pose significant construction risks during the flipping and installation of large-sized curved glass, and existing hoisting and flipping methods are insufficient to meet the safety and reliability requirements during the installation of curved glass.

[0007] Therefore, there is an urgent need for a hoisting system for curved glass curtain walls to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide a hoisting system for curved glass curtain walls, in order to solve the problems of high construction risks during the flipping and installation of large-size curved glass in the prior art, and the difficulty of existing hoisting and flipping methods in meeting the technical requirements for safety and reliability of curved glass curtain wall projects.

[0009] Based on the above concept, the technical solution adopted by this invention is as follows:

[0010] A hoisting system for curved glass curtain walls, comprising:

[0011] A flipping fixture includes a flipping base and a flipping frame. The flipping base is provided with a rotating shaft seat, and the flipping frame is provided with an arc-shaped curved surface consistent with the curvature of the arc glass. The flipping frame is provided with a rotating shaft, and the flipping frame is hinged to the rotating shaft seat through the rotating shaft to rotate relative to the flipping base.

[0012] The lifting fixture includes a lifting frame, an adsorption module, a clamping module, and a centralized control module. The lifting frame is used to cooperate with the lifting rope of a crane. The adsorption module is located in the middle of the lifting frame and can adsorb the curved glass. The clamping module includes multiple clamping arms symmetrically arranged on both sides of the adsorption module. The clamping module has a posture stabilization mode and a clamping mode. The centralized control module is used to monitor the control status of the adsorption module and control the clamping module to switch between the posture stabilization mode and the clamping mode. When the clamping module switches to the posture stabilization mode, the clamping arms on both sides are in contact with the curved glass. When the clamping module switches to the clamping mode, the clamping arms on both sides clamp the curved glass.

[0013] Preferably, the flipping base is provided with a limit stop, the flipping frame is provided with a flipping baffle, the rotating shaft is provided on the flipping baffle, and the flipping baffle can rotate to fit against the flipping base.

[0014] Preferably, a flexible pad is provided on the arc-shaped surface of the flipping frame, and the height of the flipping baffle is greater than the sagitta of the arc-shaped glass.

[0015] Preferably, the flipping frame is also provided with a plurality of guide wheels, which are arranged along the straight edges on both sides of the arc-shaped surface, and the guide wheels are movable in the horizontal plane along the axis perpendicular to the arc-shaped surface to fit the arc-shaped glass.

[0016] Preferably, the adsorption module includes multiple adsorption beams, the positions of which are adjustable on the lifting frame, and each adsorption beam is provided with at least one vacuum adsorber, the adsorption angle of which is adjustable.

[0017] Preferably, the vacuum suction device includes a ball joint seat, a ball-head connecting rod, a vacuum suction cup, and an attitude-maintaining damping ring. One end of the ball joint seat is fixedly connected to the lifting frame, and the other end is provided with a concave spherical cavity. One end of the ball-head connecting rod is provided with a ball head, which is accommodated in the concave spherical cavity. The other end of the ball-head connecting rod is connected to the vacuum suction cup. The attitude-maintaining damping ring is provided between the ball joint seat and the ball-head connecting rod, and the attitude-maintaining damping ring is used to maintain the angle of rotation of the ball-head connecting rod relative to the ball joint seat.

[0018] Preferably, each clamping arm includes a clamp and a drive unit, the drive unit is disposed on the lifting frame, the output end of the drive unit is connected to the clamp, and the centralized control module can send a signal and control the drive unit to start when the adsorption module fails, so that the clamp clamps the curved glass.

[0019] Preferably, the clamping module further includes a clamping force sensor, which is disposed at the connection between the chuck and the drive component, and the clamping force sensor is communicatively connected to the centralized control module.

[0020] Preferably, the lifting fixture also includes a release module, which is mounted on the lifting frame and is communicatively connected to the centralized control module. The release module can separate the entire lifting fixture from the curved glass after receiving a signal from the centralized control module.

[0021] Preferably, the unhooking module includes a displacement sensor and a vacuum sensor. The vacuum sensor is mounted on the adsorption module and is used to monitor the vacuum level inside the vacuum adsorber. The displacement sensor is mounted on the lifting frame and is used to monitor the displacement of the clamping arm.

[0022] The beneficial effects of this invention are:

[0023] The hoisting system for curved glass curtain walls provided by this invention utilizes a rotating frame within a rotating fixture, which can rotate relative to a rotating base. This rotating frame has an arc-shaped surface for holding the curved glass. The rotating frame carries the curved glass from a horizontal to a vertical or tilted position. During the adjustment of the curved glass's position, the rotating frame provides support, eliminating the slippage and tipping risks associated with traditional sling rotation methods, and requiring no manual assistance. An adsorption module within the hoisting fixture can adsorb and fix the curved glass, lifting it after adjustment. Furthermore, the clamping module within the hoisting fixture serves as a safety redundancy, clamping the curved glass in case of adsorption module failure, ensuring the curved glass does not fall. This effectively guarantees the safety and reliability of the curved glass installation process. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0025] Figure 1 This is a left view of the flipping frame of the flipping fixture provided in this embodiment of the invention, located in the horizontal direction.

[0026] Figure 2 This is a cross-sectional view of the flipping frame of the flipping fixture provided in the embodiment of the present invention from the perspective of the front view in the horizontal direction;

[0027] Figure 3 This is a top view of the flipping frame of the flipping fixture provided in the embodiment of the present invention in the horizontal direction;

[0028] Figure 4 This is a left view of the flipping frame of the flipping fixture provided in an embodiment of the present invention flipped to the vertical direction;

[0029] Figure 5 This is a top view of the lifting fixture provided in an embodiment of the present invention;

[0030] Figure 6 This is a front view of the lifting fixture provided in an embodiment of the present invention.

[0031] In the picture:

[0032] 1. Flip fixture; 11. Flip base; 111. Limiting block; 12. Flip frame; 121. Arc-shaped surface; 122. Rotating shaft; 123. Flip baffle; 124. Guide wheel;

[0033] 2. Lifting fixture; 21. Lifting frame; 22. Adsorption module; 221. Adsorption beam; 222. Vacuum adsorber; 2221. Ball joint seat; 2222. Ball joint connecting rod; 2223. Vacuum suction cup; 23. Clamping module; 231. Clamping arm;

[0034] 3. Adjust the screw; 4. Tighten the bolt. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0039] like Figures 1 to 6 As shown, this embodiment provides a hoisting system for curved glass curtain walls, including a flipping fixture 1 and a lifting fixture 2.

[0040] The flipping fixture 1 includes a flipping base 11 and a flipping frame 12. The flipping base 11 has a rotating shaft seat, and the flipping frame 12 has an arc-shaped surface 121 with the curvature of the curved glass. A rotating shaft 122 is mounted on the flipping frame 12, and the flipping frame 12 is hinged to the rotating shaft seat via the rotating shaft 122 to rotate relative to the flipping base 11. Here, the flipping base 11 is a steel structure plate. During operation, the flipping base 11 is fixedly placed on the ground. The rotating shaft seat is located near the end of the upper surface of the flipping base 11 along its length. The flipping frame 12 is a steel structure frame, and its size matches the size of the curved glass. The long side of the flipping frame 12 is a straight steel beam, and the short side is an arc-shaped steel beam with the same curvature as the curved glass. A rotating shaft 122 is located at the bottom of the arc-shaped steel beam on one side of the flipping frame 12, and the rotating shaft 122 is rotatably mounted on the rotating shaft seat to achieve hinged connection of the flipping frame 12 to the flipping base 11.

[0041] The lifting fixture 2 includes a lifting frame 21, an adsorption module 22, a clamping module 23, and a centralized control module. The lifting frame 21 is used to cooperate with the lifting ropes of the crane. The adsorption module 22 is located in the middle of the lifting frame 21 and can adsorb curved glass. The clamping module 23 includes multiple clamping arms 231, which are symmetrically arranged on both sides of the adsorption module 22. The clamping module 23 has a posture stabilization mode and a clamping mode. The centralized control module is used to monitor the control status of the adsorption module 22 and control the clamping module 23 to switch between the posture stabilization mode and the clamping mode. When the clamping module 23 switches to the posture stabilization mode, the clamping arms 231 on both sides are in contact with the curved glass. When the clamping module 23 switches to the clamping mode, the clamping arms 231 on both sides clamp the curved glass. The lifting frame 21 is the structural skeleton of the entire lifting fixture 2. In this embodiment, the lifting frame 21 is generally rectangular in shape. Both the long and short sides of the lifting frame 21 are made of high-strength aluminum alloy profiles spliced ​​together using high-strength angle brackets and bolts. Lifting lugs are provided on the short side of the lifting frame 21 away from the rotation axis 122.

[0042] Understandably, the curved glass is placed horizontally before hoisting. The flipping fixture 1 is mainly used to flip the curved glass from its horizontal position to a vertical or inclined position for easy hoisting before hoisting. The flipping base 11 can be fixed to the ground or a work platform. The rotating shaft seat and the rotating shaft 122 form a hinge structure, allowing the flipping frame 12 to rotate relative to the flipping base 11 around the rotating shaft 122. This, in turn, rotates the curved glass placed on the flipping frame 12 in a horizontal position, making the curved glass vertical or inclined for easy hoisting. The flipping frame 12 is provided with an arc-shaped curved surface 121, and the curvature of the arc-shaped curved surface 121 is consistent with that of the curved glass. This ensures that the curved glass receives uniform support when placed on the flipping frame 12, avoiding local stress concentration caused by curvature mismatch that could lead to glass breakage. In lifting fixture 2, the adsorption module 22 serves as the main load-bearing adsorption component under normal operating conditions, fixing the curved glass by adsorption. In attitude stabilization mode, the clamping module 23 keeps the clamping arms 231 on both sides of the curved glass, reducing swaying and displacement caused by wind vibration during lifting. At this time, the clamping module 23 does not bear vertical loads; in other words, it does not apply clamping force to the curved glass. When the adsorption module 22 malfunctions or fails, the clamping module 23 switches to clamping mode, applying mechanical clamping force to the curved glass through the clamping arms 231 on both sides to prevent it from falling off. The centralized control module monitors the control status of the adsorption module 22 in real time and automatically controls the clamping module 23 to switch between attitude stabilization mode and clamping mode, thereby improving the overall safety and reliability of the lifting system.

[0043] The hoisting system for curved glass curtain walls provided in this embodiment utilizes a rotating frame 12 in the rotating fixture 1, which can rotate relative to the rotating base 11. The rotating frame 12 has an arc-shaped curved surface 121 for placing the curved glass. The rotating frame 12 carries the curved glass from a horizontal position to a vertical or tilted position. During the adjustment of the curved glass's position, the rotating frame 12 provides support for the glass, eliminating the slippage and tipping risks associated with traditional sling rotation, and requiring no manual assistance. The suction module 22 in the lifting fixture 2 can suction and fix the curved glass, lifting the adjusted curved glass. The clamping module 23 in the lifting fixture 2 serves as a safety redundancy, clamping the curved glass in case of suction module 22 failure, ensuring the curved glass does not fall, effectively guaranteeing the safety and reliability of the curved glass installation process.

[0044] In some embodiments, a limit stop 111 is provided on the flip base 11, a flip baffle 123 is provided on the flip frame 12, and a rotation shaft 122 is disposed on the flip baffle 123, allowing the flip baffle 123 to rotate to fit against the flip base 11. For example, as... Figure 1 and Figure 3As shown, in this embodiment, the limiting block 111 is vertically connected to one end of the flip base 11 along its length. A flip baffle 123 is connected to the outer side of one short side of the flip frame 12. The rotation shaft 122 is located at the bottom of the flip baffle 123 and is hinged to the rotation shaft seat on the flip base 11. It can be understood that the limiting block 111 and the flip baffle 123 cooperate to limit the rotation angle of the flip frame 12 relative to the flip base 11. During the rotation of the flip frame 12 around the rotation shaft 122, when the flip baffle 123 rotates to fit against the flip base 11, the flip frame 12 reaches its designed limit position, thereby preventing excessive flipping angles. This controls the flipping process of the curved glass within a safe angle range, preventing the curved glass from slipping or being damaged due to excessive flipping.

[0045] More specifically, in this embodiment, when the flipping frame 12 lies flat on the flipping base 11 and is in contact with the flipping base 11, the flipping baffle 123 is perpendicular to the flipping base 11, and the length of the flipping baffle 123 is equal to the distance between the rotation axis 122 and the limiting block 111. That is, when the flipping frame 12 is lifted by a crane and rotated to its limit position, the top of the flipping baffle 123 abuts against the side wall of the limiting block 111 near the flipping frame 12, and the flipping baffle 123 is in contact with the flipping base 11. In other words, the flipping frame 12 can rotate freely around the rotation axis 122 within the range of 0° to 90°.

[0046] Furthermore, in some embodiments, a flexible pad is provided on the curved surface 121 of the flipping frame 12, and the height of the flipping baffle 123 is greater than the sag of the curved glass. It is understood that the flexible pad, positioned between the curved surface 121 and the curved glass, serves as a buffer and protector, preventing scratches or localized stress damage caused by rigid contact between the curved glass surface and the flipping frame 12. Simultaneously, the flexible pad increases the friction between the curved glass and the flipping frame 12, further reducing the movement of the curved glass within the flipping frame 12. The height of the flipping baffle 123, being greater than the sag of the curved glass, allows the baffle 123 to laterally limit the curved glass after it is placed on the flipping frame 12, preventing it from sliding or laterally detaching along the curved surface 121 during the flipping process, further improving stability during the flipping process.

[0047] In some embodiments, the flip frame 12 is further provided with a plurality of guide wheels 124, which are arranged along the straight edges on both sides of the arc-shaped surface 121, and the guide wheels 124 are movable in the horizontal plane along the direction perpendicular to the axis of the arc-shaped surface 121 to fit the arc-shaped glass.

[0048] For example, such as Figure 3As shown in this embodiment, multiple adjusting threaded holes (not shown in the figure) are spaced apart on the long side of the flipping frame 12. Multiple guide wheels 124 are connected to the flipping frame 12 through adjusting screws 3, and multiple guide wheels 124 are installed at the end of the adjusting screws 3 that extends into the inside of the flipping frame 12, so that the guide wheels 124 can move along the axial direction of the adjusting screws 3, ensuring that the guide wheels 124 can fit against the side of the curved glass, so as to provide lateral limit during the flipping process, reduce the lateral displacement during the flipping process, and improve the accuracy and safety of the flipping operation.

[0049] In some embodiments, the adsorption module 22 includes multiple adsorption beams 221, the positions of which are adjustable on the lifting frame 21. Each adsorption beam 221 is provided with at least one vacuum adsorber 222, and the adsorption angle of each vacuum adsorber 222 is adjustable. Here, the multiple adsorption beams 221 are all arranged along the length of the lifting frame 21. Slide grooves are provided on the two long sides of the lifting frame 21. The two ends of the adsorption beams 221 are slidably connected to the slide grooves on the long sides of the two lifting frames 21 respectively, and are fixed by locking bolts 4. Each adsorption beam 221 is provided with two vacuum adsorbers 222, and both vacuum adsorbers 222 are hinged below the adsorption beam 221.

[0050] Understandably, when the locking bolts 4 are loosened, the multiple adsorption beams 221 can slide within the groove along the length of the lifting frame 21 to adjust their position relative to the lifting frame 21, thereby changing the adsorption point layout of the vacuum adsorbers 222 on the curved glass to adapt to curved glass of different sizes and curvatures. The adsorption angle of each vacuum adsorber 222 is adjustable, and the adsorption angle can be adjusted according to the local normal direction of the curved glass surface, so that the vacuum suction cups 2223 fit more tightly with the curved glass surface, improving adsorption uniformity and adsorption force, and reducing the risk of air leakage due to poor surface fit.

[0051] More specifically, in this embodiment, one end of the lifting frame 21 along its length is an open structure, meaning that one end of the lifting frame 21 is unobstructed, allowing the curved glass to be fully exposed after the adsorption module 22 adsorbs it. Exemplarily, in this embodiment, the closed end of the lifting frame 21 is provided with lifting lugs, and the crane is connected to these lugs via auxiliary slings. That is, the closed end of the lifting frame 21 is the upper end, and the lower end of the lifting frame 21 is an open structure. After the adsorption module 22 adsorbs the curved glass, the lower edge of the curved glass is fully exposed, facilitating the installation of the curved glass.

[0052] Furthermore, such as Figure 5 and Figure 6As shown, in some embodiments, the vacuum suction device 222 includes a ball joint seat 2221, a ball-head connecting rod 2222, a vacuum suction cup 2223, and a posture-maintaining damping ring. One end of the ball joint seat 2221 is fixedly connected to the lifting frame 21, and the other end is provided with a concave spherical cavity. One end of the ball-head connecting rod 2222 is provided with a ball head, which is accommodated in the concave spherical cavity. The other end of the ball-head connecting rod 2222 is connected to the vacuum suction cup 2223. A posture-maintaining damping ring is provided between the ball joint seat 2221 and the ball-head connecting rod 2222, and the posture-maintaining damping ring is used to maintain the angle of rotation of the ball-head connecting rod 2222 relative to the ball joint seat 2221. Exemplarily, in this embodiment, two ball joint seats 2221 are fixedly connected to each suction beam 221, and the two ball joint seats 2221 are symmetrically arranged along the length direction of the beam. Correspondingly, each vacuum suction device 222 is provided with two ball-head connecting rods 2222 and two vacuum suction cups 2223. Two ball joint seats 2221 have concave spherical cavities at their lower ends, away from the adsorption beam 221. The ball ends of two ball joint rods 2222 are correspondingly positioned within these concave spherical cavities. The lower ends of the ball joint rods 2222 are connected to the base of the vacuum suction cup 2223. Vent holes are located at the center of each ball joint rod 2222, connecting the inner cavity of the vacuum suction cup 2223 to the vacuum tubing. This allows a vacuum to be generated after the vacuum suction cup 2223 is in contact with the curved glass, enabling adsorption of the curved glass. The attitude-maintaining damping ring is an annular pad made of elastic damping material.

[0053] Understandably, the ball joint seat 2221 and the ball joint connecting rod 2222 constitute a ball joint structure. The ball joint can rotate in multiple directions within the concave spherical cavity, allowing the vacuum suction cup 2223 to adapt to the curved surface angle of the arc-shaped glass. The attitude-maintaining damping ring provides frictional damping. When the ball joint connecting rod 2222 is adjusted to a suitable angle, the damping ring can maintain that angle, preventing the vacuum suction cup 2223 from rotating unexpectedly under its own weight or external force. This ensures the adaptability of the vacuum suction cup 222 to the curved surface of the arc-shaped glass and prevents angular drift during lifting, thus improving the stability of the suction attitude.

[0054] In some embodiments, each clamping arm 231 includes a clamp and a drive member. The drive member is mounted on the lifting frame 21, and the output end of the drive member is connected to the clamp. The centralized control module can send a signal and control the drive member to start when the adsorption module 22 fails, so that the clamp clamps the curved glass.

[0055] Understandably, the chuck is equipped with clamping positions. The drive unit moves the chuck closer to or further away from the curved glass so that the side of the curved glass is within the clamping position of the chuck or the curved glass is removed from the clamping position. During normal hoisting, the chuck is close to the curved glass, ensuring that the inner wall of the clamping position remains in contact with the curved glass without applying excessive clamping force. When the centralized control module detects insufficient vacuum or adsorption failure in the adsorption module 22, it promptly sends a control signal, and the chuck changes from a contact state to a clamping state, applying mechanical clamping force to the curved glass. In this way, when the adsorption module 22 fails, the clamping module 23 can quickly respond as a safety protection device to prevent the curved glass from falling and improve the safety of the hoisting process.

[0056] For example, in this embodiment, multiple drive components are spaced apart along the long side of the lifting frame 21, and each drive component is connected to a multiple clamp via a ball joint. By also configuring the clamps to be rotatable, the clamps can automatically adapt to the side curvature of the arc proportion.

[0057] More specifically, a high-friction coefficient pad, not less than 0.8, is attached to the inner wall of the clamping position of the chuck. For example, the pad is a high-friction coefficient silicone rubber pad.

[0058] To enable the centralized control module to determine whether the clamping arm 231 has reached an effective clamping state based on the clamping force and to adjust the output force of the drive component, in some embodiments, the clamping module 23 further includes a clamping force sensor. The clamping force sensor is located at the connection between the clamp and the drive component and is communicatively connected to the centralized control module. It is understood that the clamping force sensor is used to detect the clamping force applied to the curved glass by the clamp in real time and transmit the detection signal to the centralized control module. The centralized module controls the clamping module 23 to switch between a stable posture mode and a clamping mode based on the monitored clamping force. This avoids excessive clamping force damaging the curved glass or insufficient clamping force leading to unreliable clamping and the curved glass falling during lifting, thereby improving the accuracy and safety of clamping control.

[0059] After the permanent installation of the curved glass is completed, in order to improve the separation speed of the lifting fixture 2 from the curved glass and reduce the time the lifting fixture 2 is at a high altitude, in some embodiments, the lifting fixture 2 also includes a release module. The release module is set on the lifting frame 21 and is communicatively connected to the centralized control module. The release module can separate the lifting fixture 2 from the curved glass as a whole after receiving a signal from the centralized control module. More specifically, in this embodiment, the release module includes a suction cup pressure relief unit. The suction cup pressure relief unit includes a normally closed electromagnetic pressure relief valve and a miniature backflush air pump installed on the pipeline of each vacuum suction cup 2223. When release is required, the electromagnetic pressure relief valve opens, and the backflush air pump injects a small amount of positive pressure air into the vacuum suction cup 2223, actively pushing the vacuum suction cup 2223 away from the surface of the curved glass.

[0060] Understandably, in this embodiment, the centralized control module is also connected to the adsorption module 22. After the operator completes the permanent installation of the curved glass, the operator can input a release signal into the centralized control module. Upon receiving the signal, the centralized control module outputs a signal to activate the release module, releasing the constraints of the adsorption module 22 and the clamping module 23 on the curved glass. That is, the adsorption module 22 no longer adsorbs the curved glass, and the clamping module 23 no longer limits the curved glass, facilitating the removal of the lifting fixture 2. This reduces manual operation, improves construction efficiency, and reduces the safety risks associated with manual operation.

[0061] To ensure complete separation of the adsorption module 22 and clamping module 23 from the curved glass, and to prevent damage to the installed curved glass due to interference from the curved glass during the removal of the lifting fixture 2, in some embodiments, the unhooking module includes a displacement sensor and a vacuum sensor. The vacuum sensor is mounted on the adsorption module 22 and is used to monitor the vacuum level within the adsorption module 22 (in this embodiment, the vacuum sensor is used to monitor the vacuum level within the vacuum adsorber 222); the displacement sensor is mounted on the lifting frame 21 and is used to monitor the displacement of the clamping arm 231.

[0062] Understandably, the vacuum sensor monitors the changes in vacuum level inside the vacuum adsorber 222 in real time to determine whether the adsorption force has been zeroed. When the adsorption force is zero, it confirms that the adsorption module 22 is completely separated from the curved glass. The displacement sensor monitors the displacement of the clamping arm 231 in real time to determine whether the clamping arm 231 has moved into position. Of course, the vacuum sensor and displacement sensor can also monitor the constraint effect on the curved glass during lifting. For example, when the vacuum level is lower than a preset threshold, the centralized control module can determine that the adsorption module 22 is at risk of failure and control the clamping module 23 to switch to clamping mode. The displacement sensor monitors whether the clamping arm 231 has abnormal displacement. The signals from the two sensors together provide the centralized control module with a basis for judgment, improving the level of system automation control and safety performance.

[0063] In this embodiment, the centralized control module includes a vacuum pump controller, a wireless communication module, a microcontroller, and a handheld remote controller, all mounted on the lifting frame 21. The microcontroller controls the vacuum pump and the drive unit. The handheld remote controller connects to the microcontroller via the wireless communication module, thereby controlling the vacuum pump and the drive unit. The handheld remote controller can signal that the curved glass installation is complete and issue an alarm indicating that the adsorption module 22 has failed.

[0064] Furthermore, in some embodiments, all vacuum suction cups 2223 are divided into at least two independent vacuum zones. Each vacuum zone is equipped with an independent vacuum pump, vacuum pipeline, vacuum storage tank, and check valve. The pipelines of each zone are connected by one-way isolation valves, which maintain pressure balance under normal conditions and automatically isolate any zone in case of leakage. The remaining vacuum zones work together to maintain the adsorption of the curved glass.

[0065] This embodiment takes two independent vacuum zones as an example. The hoisting system for curved glass curtain walls can be divided into three progressive tooling states:

[0066] The first stage is the normal operating state, where all vacuum zones function normally, and the clamping module 23 is in a stable posture mode, only in contact with the curved glass without applying clamping force. The weight of the curved glass is entirely borne by the adsorption module 22.

[0067] The second level is a single-zone failure protection state. If a single vacuum zone leaks, the one-way isolation valve of that zone closes, isolating the vacuum zone. The other vacuum zone maintains a normal vacuum level. It is important to note that the design redundancy of the load-bearing capacity provided by a single vacuum zone should be greater than or equal to 50%. Simultaneously, the centralized control module sends a signal indicating that the adsorption of the single vacuum zone has failed. The handheld controller receives this signal and issues a yellow warning, prompting the operator to complete the installation as soon as possible or safely lower the curved glass. The clamping module 23 remains in attitude stabilization mode.

[0068] The third level is a multi-zone failure emergency state. Both vacuum zones fail, and the centralized control module sends a signal indicating the failure of both vacuum zones, immediately switching all clamping arms 231 from attitude stabilization mode to clamping mode. The silicone rubber pads on the inner walls of the clamping positions of the clamping arms 231 generate sufficient friction with the sides of the curved glass to prevent it from falling. Simultaneously with the action of the clamping module 23, the handheld controller issues a red warning, and the vacuum storage tank continuously supplies pressure to the vacuum suction cup 2223 through the check valve, slowing down the rate of vacuum decay.

[0069] in accordance with Figures 1 to 6 The workflow of the hoisting system for curved glass curtain walls provided in this embodiment is described below:

[0070] S1. Adjust the adjusting screw 3 on the flip frame 12 according to the chord length of the curved glass, so that the distance between the guide wheels 124 on the two long sides of the flip frame 12 is slightly greater than the chord length of the curved glass. The clamping module 23 remains in the attitude stabilization mode.

[0071] S2. The curved glass is suspended horizontally above the flip frame 12 and slowly lowered so that the lower surface of the curved glass rests smoothly on the flexible pad of the curved surface 121. Since the curvature of the curved surface 121 is the same as that of the curved glass, the curved glass can fit perfectly against the curved surface 121. One end of the curved glass rests against the flip baffle 123 on the flip frame 12. The operator adjusts the adjusting screw 3 on the flip frame 12 so that the guide wheels 124 on both sides lightly touch the sides of the curved glass.

[0072] S3. The crane lifts the lifting fixture 2 directly above the curved glass and slowly lowers it, so that each vacuum suction unit 222 rotates automatically under the cooperation of the ball joint seat 2221 and the ball head, and each vacuum suction cup 2223 is in contact with the curved glass along the tangent of the curved glass surface. The vacuum pump is started, and when the vacuum sensor detects that each vacuum suction cup 2223 has reached the rated vacuum, the handheld controller issues a green alarm, indicating that the suction is ready.

[0073] S4. The crane slowly lifts the lifting fixture 2. The crane's hoisting rope keeps the tilting frame 12 rotating around the rotation axis 122. The curved glass is always supported by the curved surface 121, supported by the tilting baffle 123, and laterally limited by the guide wheel 124. When the tilting baffle 123 of the tilting frame 12 abuts against the tilting base 11 and the limiting block 111, the curved glass is in a vertical position, and the entire weight of the curved glass is borne by the adsorption module 22. The operator disconnects the crane's hoisting rope from the tilting frame 12, and the tilting frame 12 separates from the lifting fixture 2.

[0074] S5. The side clamping arm 231 is started in attitude stabilization mode. The drive unit drives the clamping arm 231 to move to fit against the side of the curved glass, and the position of the clamping arm 231 is confirmed by the clamping force sensor and the displacement sensor.

[0075] S6. The crane uses slings to lift the lifting fixture 2 and the curved glass as a whole, and raises them to the installation height.

[0076] S7. After the curved glass reaches the installation position, since there is no obstruction at the lower end of the lifting frame 21, the lower edge of the curved glass can be placed directly in the installation groove, and the operator can perform permanent fixing work on the curved glass.

[0077] S8. After the curved glass is permanently fixed, the operator issues a release command via a handheld remote control. The backflush air pump injects a small amount of positive pressure air into the vacuum suction cup 2223, causing the vacuum suction cup 2223 to actively separate from the curved glass surface. The clamping arm 231 release unit controls the retraction of the side clamping arm 231. At the same time, the monitoring information from the vacuum sensor and displacement sensor is confirmed to ensure that all constraints on the curved glass have been released, and the handheld remote control indicates that it is safe to lift.

[0078] S9. The crane safely lifts the lifting fixture 2 back to the ground, ready for the installation of the next piece of curved glass.

[0079] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A hoisting system for curved glass curtain walls, characterized in that, include: The flipping fixture (1) includes a flipping base (11) and a flipping frame (12). The flipping base (11) is provided with a rotating shaft seat, and the flipping frame (12) is provided with an arc-shaped curved surface (121) consistent with the curvature of the arc glass. The flipping frame (12) is provided with a rotating shaft (122). The flipping frame (12) is hinged to the rotating shaft seat through the rotating shaft (122) to rotate relative to the flipping base (11). The lifting fixture (2) includes a lifting frame (21), an adsorption module (22), a clamping module (23), and a centralized control module. The lifting frame (21) is used to cooperate with the lifting rope of the crane. The adsorption module (22) is located in the middle of the lifting frame (21) and can adsorb the arc glass. The clamping module (23) includes multiple clamping arms (231), which are symmetrically arranged on both sides of the adsorption module (22). The clamping module (23) has a posture stabilization mode and a clamping mode. The centralized control module is used to monitor the control status of the adsorption module (22) and control the clamping module (23) to switch between the posture stabilization mode and the clamping mode. When the clamping module (23) switches to the posture stabilization mode, the clamping arms (231) on both sides are in contact with the arc glass. When the clamping module (23) switches to the clamping mode, the clamping arms (231) on both sides clamp the arc glass.

2. The hoisting system for curved glass curtain walls according to claim 1, characterized in that, The flip base (11) is provided with a limit stop (111), the flip frame (12) is provided with a flip baffle (123), the rotating shaft (122) is provided on the flip baffle (123), and the flip baffle (123) can rotate to fit with the flip base (11).

3. The hoisting system for curved glass curtain walls according to claim 2, characterized in that, The flip frame (12) has a flexible pad on its arc-shaped surface (121), and the height of the flip baffle (123) is greater than the sagitta of the arc glass.

4. The hoisting system for curved glass curtain walls according to claim 1, characterized in that, The flip frame (12) is also provided with a plurality of guide wheels (124). The plurality of guide wheels (124) are arranged along the straight edges on both sides of the arc surface (121), and the guide wheels (124) are movable in the horizontal plane along the direction perpendicular to the axis of the arc surface (121) to fit the arc glass.

5. The hoisting system for curved glass curtain walls according to any one of claims 1-4, characterized in that, The adsorption module (22) includes multiple adsorption beams (221), the positions of the multiple adsorption beams (221) on the lifting frame (21) are adjustable, and each adsorption beam (221) is provided with at least one vacuum adsorber (222), and the adsorption angle of each vacuum adsorber (222) is adjustable.

6. The hoisting system for curved glass curtain walls according to claim 5, characterized in that, The vacuum suction device (222) includes a ball joint seat (2221), a ball head connecting rod (2222), a vacuum suction cup (2223), and a posture holding damping ring. One end of the ball joint seat (2221) is fixedly connected to the lifting frame (21), and the other end is provided with a concave spherical cavity. One end of the ball head connecting rod (2222) is provided with a ball head, which is accommodated in the concave spherical cavity. The other end of the ball head connecting rod (2222) is connected to the vacuum suction cup (2223). The posture holding damping ring is provided between the ball joint seat (2221) and the ball head connecting rod (2222). The posture holding damping ring is used to maintain the angle of rotation of the ball head connecting rod (2222) relative to the ball joint seat (2221).

7. The hoisting system for curved glass curtain walls according to any one of claims 1-4, characterized in that, Each of the clamping arms (231) includes a clamp and a drive unit, the drive unit being disposed on the lifting frame (21), the output end of the drive unit being connected to the clamp, and the centralized control module being able to send a signal and control the drive unit to start when the adsorption module (22) is detected to fail so that the clamp clamps the curved glass.

8. The hoisting system for curved glass curtain walls according to claim 7, characterized in that, The clamping module (23) further includes a clamping force sensor, which is located at the connection between the clamp and the drive component, and is communicatively connected to the centralized control module.

9. The hoisting system for curved glass curtain walls according to any one of claims 1-4, characterized in that, The lifting fixture (2) also includes a disengagement module, which is installed on the lifting frame (21). The disengagement module is connected to the centralized control module and can separate the lifting fixture (2) from the arc glass as a whole after receiving a signal from the centralized control module.

10. The hoisting system for curved glass curtain walls according to claim 9, characterized in that, The unhooking module includes a displacement sensor and a vacuum sensor. The vacuum sensor is installed on the adsorption module (22) and is used to monitor the vacuum level inside the adsorption module (22). The displacement sensor is installed on the lifting frame (21) and is used to monitor the displacement of the clamping arm (231).

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