Connecting device for installation of large-span assembly type outer wall

Abstract

The invention provides a connecting device for installation of a large-span assembly type outer wall, and belongs to the technical field of connecting pieces of building structures. The connecting device comprises a bearing mechanism which comprises a cross rod and an adjusting channel formed in the top of the cross rod. Through a composite elastic reset assembly in the multi-directional fixing mechanism and a graded deformation mechanism of an energy storage spring and a ring sleeve, the structural rigidity is maintained, vertical displacement can be flexibly digested, a modular vibration reduction structure of a damping assembly implements stepped energy dissipation for vibration of different frequencies, the alternating load influence is reduced, and the vibration attenuation effect is improved. By means of the hinged design of the rotating shaft seats and the multi-degree-of-freedom characteristic of the adjusting supporting assemblies, the dynamic following capacity is given to the external wall panel, stress concentration caused by forced displacement is avoided, through the scientific proportion of rigidity and flexibility, the functions of deformation coordination, vibration isolation and uniform stress distribution are achieved while the bearing capacity is guaranteed, and the service life of the external wall panel is prolonged. And the failure risk of traditional rigid connection is fundamentally overcome.

Description

Technical Field

[0001] This invention belongs to the technical field of building structure connectors, specifically relating to a connector device for large-span prefabricated exterior wall installation. Background Technology

[0002] Prefabricated exterior wall connection devices are key components in the development of industrialized construction, primarily used to achieve rapid and precise connections between precast concrete, metal, or other material exterior wall panels and the main building structure. These devices typically consist of high-strength metal components and matching adjustment mechanisms, and through standardized design, they meet the load transfer, displacement compensation, and sealing requirements of modular exterior walls.

[0003] Currently, large-span buildings experience greater deformation under wind loads or temperature changes. If the connection nodes are too rigid and lack displacement compensation capabilities, stress concentration at the connection points can lead to bolt shear failure, weld cracking, or local crushing of precast wall panels. At the same time, as the span increases, the building vibration amplitude intensifies. If damping and vibration reduction are not considered in the connectors, long-term alternating loads will accelerate metal fatigue, multiplying the risk of hidden loosening and ultimately affecting the airtightness and watertightness of the overall building envelope. Summary of the Invention

[0004] The purpose of this invention is to provide a connection device for large-span prefabricated exterior wall installation, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A connection device for installing large-span prefabricated exterior walls, comprising: The load-bearing mechanism includes a crossbar, an adjustment channel formed at the top of the crossbar, and a positioning component disposed within the cavity of the adjustment channel; The multi-directional fixing mechanism includes a support column fixedly installed on the outside of the crossbar, a slot formed in the inner cavity of the support column, a reset assembly disposed in the inner cavity of the slot, an adjustment support assembly disposed on the top of the reset assembly, and a damping assembly disposed on the outside of the support column.

[0006] As a preferred embodiment of the present invention, the bearing mechanism further includes a fixing plate fixedly installed on the outside of the crossbar, a pivot seat fixedly installed at the bottom junction of the crossbar, a connecting rod fixedly installed on the outside of the crossbar, and a fixing component disposed on the outside of the connecting rod.

[0007] As a preferred embodiment of the present invention, the reset assembly includes an energy storage spring fixedly installed in the inner cavity of the slot, a ring sleeve movably sleeved on the outside of the energy storage spring, and a connecting block fixedly installed on the outside of the ring sleeve.

[0008] As a preferred embodiment of the present invention, the reset assembly further includes a reset spring fixedly installed on the outside of the connecting block, a connecting shaft fixedly installed on the top of the energy storage spring, a limiting strip fixedly installed on the bottom of the reset spring, and a fixing block fixedly installed on the bottom of the limiting strip.

[0009] As a preferred embodiment of the present invention, the adjusting support assembly includes a first adjusting arm fixedly mounted on the top of the connecting shaft, and a rotating shaft hinged to the outside of the first adjusting arm.

[0010] As a preferred embodiment of the present invention, the adjusting support assembly further includes a second support arm fixedly installed on the outside of the rotating shaft, and a second mounting plate fixedly installed on the outside of the second support arm.

[0011] As a preferred embodiment of the present invention, the damping assembly includes a fixed base fixedly installed on the outside of the support column, a damping seat fixedly installed on the outside of the fixed base, a damping spring fixedly installed on the outside of the damping seat, and a vibration damping washer fixedly installed on the outside of the damping spring.

[0012] As a preferred embodiment of the present invention, the positioning component includes a slider that is movably engaged in the inner cavity of the adjustment channel, and a limiting plate that is fixedly installed on the top of the slider.

[0013] As a preferred embodiment of the present invention, the positioning component further includes a vertical rod fixedly installed on the top of the limiting plate, and a first mounting plate fixedly installed on the top of the vertical rod.

[0014] As a preferred embodiment of the present invention, the fixing component includes a stop block fixedly installed at the end of the connecting rod, a locking protrusion fixedly installed on the outside of the stop block, a slot formed on the outside of the stop block, and a locking block fixedly installed in the inner cavity of the slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the composite elastic reset component in the multi-directional fixing mechanism maintains structural stiffness and flexibly absorbs vertical displacement through the graded deformation mechanism of the energy storage spring and the ring sleeve; the modular vibration reduction structure of the damping component implements stepped energy dissipation for vibrations of different frequencies, reducing the impact of alternating loads; and the hinged design of the pivot seat and the multi-degree-of-freedom characteristics of the adjustment support component endow the exterior wall panel with dynamic following ability, avoiding stress concentration caused by forced displacement. Through the scientific ratio of stiffness and flexibility, the functions of deformation coordination, vibration isolation and uniform stress distribution are achieved while ensuring load-bearing capacity, fundamentally overcoming the failure risk of traditional rigid connections. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a partial schematic diagram of the fixing component structure of the present invention; Figure 4 This is a partial cross-sectional view of the support column structure of the present invention; Figure 5 This is a schematic diagram of the damping component structure of the present invention.

[0017] In the picture: 100. Bearing mechanism; 110. Crossbar; 120. Adjustment channel; 130. Positioning assembly; 131. Slider; 132. Limiting plate; 133. Vertical rod; 134. First mounting plate; 140. Fixing plate; 150. Rotary shaft seat; 160. Connecting rod; 170. Fixing assembly; 171. Abutment block; 172. Locking protrusion; 173. Slot; 174. Locking block; 200. Multi-directional fixing mechanism; 210. Support column; 220. Slot; 230. Reset assembly; 231. Energy storage spring; 232. Ring; 233. Connecting block; 234. Reset spring; 235. Connecting shaft; 236. Limiting strip; 237. Fixing block; 240. Adjusting support assembly; 241. First adjusting arm; 242. Rotating shaft; 243. Second support arm; 244. Second mounting plate; 250. Damping assembly; 251. Fixing seat; 252. Damping seat; 253. Damping spring; 254. Vibration damping washer. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0021] Reference Figures 1-5 This is the first embodiment of the present invention, which provides a connection device for installing large-span prefabricated exterior walls, comprising: The support mechanism 100 includes a crossbar 110, an adjustment channel 120 formed on the top of the crossbar 110, and a positioning component 130 disposed in the inner cavity of the adjustment channel 120. The multi-directional fixing mechanism 200 includes a support column 210 fixedly installed on the outside of the crossbar 110, a slot 220 opened in the inner cavity of the support column 210, a reset assembly 230 disposed in the inner cavity of the slot 220, an adjustment support assembly 240 disposed on the top of the reset assembly 230, and a damping assembly 250 disposed on the outside of the support column 210.

[0022] The synergistic effect of the load-bearing mechanism 100 and the multi-directional fixing mechanism 200 enables multi-dimensional adjustment and force balance during the installation of large-span exterior walls. The adjustment channel 120 at the top of the crossbar 110 provides a guide channel for horizontal displacement, while the reset component 230 in the support column 210 can effectively compensate for the vertical deformation of the building structure under wind load or temperature difference. The damping component 250 reduces vibration transmission, forming a dynamic match between stiffness and flexibility, and ensuring the stability of the connection node in long-term use.

[0023] Specifically, the load-bearing mechanism 100 also includes a fixing plate 140 fixedly installed on the outside of the crossbar 110, a pivot seat 150 fixedly installed at the bottom junction of the crossbar 110, a connecting rod 160 fixedly installed on the outside of the crossbar 110, and a fixing assembly 170 provided on the outside of the connecting rod 160.

[0024] By adding a fixing plate 140 and a pivot seat 150, the anchoring reliability of the crossbar 110 and the main building structure is enhanced. The fixing component 170 extending from the connecting rod 160 forms a spatial force distribution, transforming the traditional single-point force into multi-point distributed bearing, effectively avoiding local stress concentration. The hinged design of the pivot seat 150 allows for fine-tuning of the angle of the device in the early stages of installation, adapting to construction errors.

[0025] Furthermore, the reset assembly 230 includes an energy storage spring 231 fixedly installed in the inner cavity of the slot 220, a ring sleeve 232 movably sleeved on the outside of the energy storage spring 231, and a connecting block 233 fixedly installed on the outside of the ring sleeve 232. The reset assembly 230 also includes a reset spring 234 fixedly installed on the outside of the connecting block 233, a connecting shaft 235 fixedly installed on the top of the energy storage spring 231, a limiting strip 236 fixedly installed on the bottom of the reset spring 234, and a fixing block 237 fixedly installed on the bottom of the limiting strip 236.

[0026] The combined design of the energy storage spring 231 and the ring sleeve 232 achieves a two-stage response to vertical deformation. The energy storage spring 231 bears the main load, while the ring sleeve 232 provides additional damping through sliding friction. The connecting block 233 converts elastic deformation into controllable displacement, allowing the support column 210 to undergo controllable elastic deformation while ensuring load-bearing capacity, thus avoiding brittle failure caused by rigid connection. Through the nested layout of the reset spring 234 and the limiting strip 236, a graded reset mechanism is formed. The connecting shaft 235 evenly transmits the upper load to the energy storage spring 231, while the limiting strip 236 constrains the reset stroke to prevent excessive rebound. The fixed block 237 serves as the bottom support, ensuring that the damping force is transmitted axially, giving the structure self-recovering characteristics under dynamic loads.

[0027] Preferably, the adjustment support assembly 240 includes a first adjustment arm 241 fixedly mounted on the top of the connecting shaft 235, and a rotating shaft 242 hinged to the outside of the first adjustment arm 241. The adjustment support assembly 240 also includes a second support arm 243 fixedly mounted on the outside of the rotating shaft 242, and a second mounting plate 244 fixedly mounted on the outside of the second support arm 243.

[0028] The hinged connection between the first adjusting arm 241 and the rotating shaft 242 enables multi-degree-of-freedom adjustment of the installation plane. The first adjusting arm 241 converts the vertical movement of the connecting shaft 235 into an angle change, and the rotating shaft 242 allows the second support arm 243 to rotate in the horizontal plane, thereby adapting to the deflection requirements of the exterior wall panel under different working conditions and reducing the installation accuracy requirements. The second support arm 243 and the second mounting plate 244 form an extended support surface, which disperses the load by increasing the contact area. The second mounting plate 244 adopts a ribbed plate structure, which not only ensures the fit with the wall panel, but also offsets part of the bending moment through the cantilever effect, so that the connection device can still maintain stability under large-span cantilever conditions.

[0029] Furthermore, the damping assembly 250 includes a fixed base 251 fixedly installed on the outside of the support column 210, a damping seat 252 fixedly installed on the outside of the fixed base 251, a damping spring 253 fixedly installed on the outside of the damping seat 252, and a damping washer 254 fixedly installed on the outside of the damping spring 253.

[0030] The modular design of the fixed seat 251 and the damping seat 252 enables the step-like dissipation of vibration energy. The damping spring 253 is responsible for absorbing high-frequency micro-amplitude vibrations, while the vibration damping washer 254 converts low-frequency large displacement energy through the deformation of viscoelastic material, forming a wide-frequency vibration reduction effect, which is particularly suitable for wind-sensitive super high-rise buildings.

[0031] Furthermore, the fixing assembly 170 includes a stop 171 fixedly installed at the end of the connecting rod 160, a locking protrusion 172 fixedly installed on the outside of the stop 171, a slot 173 opened on the outside of the stop 171, and a locking block 174 fixedly installed in the inner cavity of the slot 173.

[0032] The wedge-shaped locking mechanism formed by the abutment block 171 and the locking protrusion 172 generates a self-locking effect through the interlocking of inclined surfaces. When the card block 174 in the card slot 173 is pressed, it expands radially to fill the mating gap and form a zero-gap fixation. It can achieve the anti-loosening function under vibration environment without the need for additional fasteners.

[0033] In use, firstly, the crossbar 110 of the bearing mechanism 100 is bolted to the pre-embedded parts of the building structure through the fixing plate 140, and the rotating shaft seat 150 is installed simultaneously to form a reference support surface. Then, the support column 210 of the multi-directional fixing mechanism 200 is positioned along the axis of the crossbar 110, and the vertical elevation is calibrated through the reset component 230 in the slot 220. Next, the slider 131 of the positioning component 130 is slid along the adjustment channel 120 to the design coordinates, and the locking limit plate 132 is tightened to complete the planar positioning. Finally, the outer wall panel is hoisted and aligned with the first mounting plate 134 and the second mounting plate 244, and the abutment 171 of the fixing component 170 is pushed to complete the self-locking fixation.

[0034] In summary, the load-bearing mechanism 100 constructs a horizontal sliding reference surface through the crossbar 110 and the adjusting channel 120, and achieves millimeter-level precise positioning in conjunction with the adjustable positioning component 130. The multi-directional fixing mechanism 200 utilizes a composite elastic system, with the energy storage spring 231 and the damping component 250 forming a dual-mode response mechanism for vertical loads, effectively absorbing the energy of wind vibration, earthquakes, and temperature difference deformation. The multi-degree-of-freedom hinged structure of the adjusting support component 240 enables the exterior wall panel to have adaptive deflection capability. The entire device, through spatial force system reconstruction, transforms the concentrated load of traditional connections into a three-dimensional distributed force transmission system of the crossbar 110, support column 210, and connecting rod 160. Furthermore, all functional modules adopt dry operation to achieve rapid assembly and disassembly, improving assembly efficiency and reducing the maintenance cost throughout the entire life cycle. Example 2

[0035] Reference Figure 1This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an optimized structure for the positioning component, which enables stepless adjustment and rapid positioning for external wall installation.

[0036] Specifically, the positioning component 130 includes a slider 131 that is movably engaged in the inner cavity of the adjustment channel 120, and a limiting plate 132 that is fixedly installed on the top of the slider 131. The positioning component 130 also includes a vertical rod 133 that is fixedly installed on the top of the limiting plate 132, and a first mounting plate 134 that is fixedly installed on the top of the vertical rod 133.

[0037] Furthermore, the sliding pair structure of slider 131 and limiting plate 132 allows the outer wall panel to be continuously adjusted steplessly along the adjustment channel 120. The limiting plate 132 provides temporary positioning force through contact surface friction, allowing construction personnel to make rough adjustments first and then precise positioning, greatly improving installation efficiency and avoiding the forced assembly problem caused by the limitation of traditional bolt hole positions. The vertical rod 133 and the first mounting plate 134 form a standardized interface module. By changing the height of the vertical rod 133, wall panels of different thicknesses can be adapted. The pre-embedded groove design of the first mounting plate 134 enables rapid alignment during wall panel hoisting, and the vertical load is directly transferred to the horizontal rod 110 through the vertical rod 133, with a clear force flow path.

[0038] When in use, construction workers can first slide the slider 131 to the target position and temporarily fix it by the limiting plate 132. After the exterior wall panel is hoisted to the first mounting plate 134, the final locking is completed, thereby improving the installation accuracy and efficiency of large-span wall panels. It is especially suitable for flexible construction of irregular or curved exterior walls.

[0039] In summary, by optimizing the adjustability and modular design of the positioning component 130, while ensuring structural rigidity, the problems of poor adaptability to construction errors and low adjustment efficiency of traditional connection methods are solved, providing a higher fault-tolerant installation solution for prefabricated buildings.

[0040] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0041] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0042] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A connecting device for installing large-span prefabricated exterior walls, characterized in that: include, The load-bearing mechanism (100) includes a crossbar (110), an adjustment channel (120) opened on the top of the crossbar (110), and a positioning component (130) disposed in the cavity of the adjustment channel (120). The multi-directional fixing mechanism (200) includes a support column (210) fixedly installed on the outside of the crossbar (110), a slot (220) opened in the cavity of the support column (210), a reset assembly (230) disposed in the cavity of the slot (220), an adjustment support assembly (240) disposed on the top of the reset assembly (230), and a damping assembly (250) disposed on the outside of the support column (210).

2. The connection device for large-span prefabricated exterior wall installation according to claim 1, characterized in that: The bearing mechanism (100) further includes a fixing plate (140) fixedly installed on the outside of the crossbar (110), a pivot seat (150) fixedly installed at the bottom junction of the crossbar (110), a connecting rod (160) fixedly installed on the outside of the crossbar (110), and a fixing component (170) disposed on the outside of the connecting rod (160).

3. A connecting device for large-span prefabricated exterior wall installation according to claim 2, characterized in that: The reset assembly (230) includes an energy storage spring (231) fixedly installed in the inner cavity of the slot (220), a ring sleeve (232) movably sleeved on the outside of the energy storage spring (231), and a connecting block (233) fixedly installed on the outside of the ring sleeve (232).

4. A connecting device for large-span prefabricated exterior wall installation according to claim 3, characterized in that: The reset assembly (230) also includes a reset spring (234) fixedly installed on the outside of the connecting block (233), a connecting shaft (235) fixedly installed on the top of the energy storage spring (231), a limiting strip (236) fixedly installed on the bottom of the reset spring (234), and a fixing block (237) fixedly installed on the bottom of the limiting strip (236).

5. A connecting device for large-span prefabricated exterior wall installation according to claim 4, characterized in that: The adjustment support assembly (240) includes a first adjustment arm (241) fixedly mounted on the top of the connecting shaft (235), and a rotating shaft (242) hinged to the outside of the first adjustment arm (241).

6. A connecting device for large-span prefabricated exterior wall installation according to claim 5, characterized in that: The adjustment support assembly (240) further includes a second support arm (243) fixedly installed on the outside of the rotating shaft (242), and a second mounting plate (244) fixedly installed on the outside of the second support arm (243).

7. A connecting device for large-span prefabricated exterior wall installation according to claim 6, characterized in that: The damping assembly (250) includes a fixed seat (251) fixedly installed on the outside of the support column (210), a damping seat (252) fixedly installed on the outside of the fixed seat (251), a damping spring (253) fixedly installed on the outside of the damping seat (252), and a damping washer (254) fixedly installed on the outside of the damping spring (253).

8. A connecting device for large-span prefabricated exterior wall installation according to claim 7, characterized in that: The positioning component (130) includes a slider (131) that is movably engaged in the inner cavity of the adjustment channel (120), and a limiting plate (132) that is fixedly installed on the top of the slider (131).

9. A connecting device for large-span prefabricated exterior wall installation according to claim 8, characterized in that: The positioning component (130) also includes a vertical rod (133) fixedly installed on the top of the limiting plate (132), and a first mounting plate (134) fixedly installed on the top of the vertical rod (133).

10. A connecting device for large-span prefabricated exterior wall installation according to claim 9, characterized in that: The fixing assembly (170) includes a stop block (171) fixedly installed at the end of the connecting rod (160), a locking protrusion (172) fixedly installed on the outside of the stop block (171), a slot (173) opened on the outside of the stop block (171), and a locking block (174) fixedly installed in the inner cavity of the slot (173).

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