Sloping roof triangular support front-lifting and back-pulling type hanging basket overhanging device and mounting method

Abstract

The invention relates to an inclined roof triangular support front-overhanging and rear-pulling type hanging basket overhanging device and an installation method, the device is composed of a rectangular box-shaped base, a supporting frame arranged on the base, an overhanging frame clamped by the supporting frame, a pulling rod for pulling the overhanging frame and a front support at the front end of the base, and the hanging basket overhanging support is positioned and installed on a reliable wall; during installation, the roof truss beam of the sloping roof is fully utilized to realize counterweight-free construction. The problem that a traditional hanging basket cannot adapt to a special roof modeling structure due to the fact that the size is too large is solved, good conditions can be created by intervening and interpenetrating construction, the flexibility of construction arrangement can be remarkably improved, and the construction period is shortened.

Description

Technical Field

[0001] The present application belongs to the technical field of hanging basket construction, and specifically relates to a hanging basket cantilever device and an installation method for a sloping roof triangular bracket with a front-cantilever and rear-pull type. Background Art

[0002] The gradual diversification of high-rise residential buildings has led to an increasing difficulty in exterior wall insulation construction. The traditional hanging basket installation method can no longer meet the requirements of modern architectural shapes. In order to improve the quality standard system of construction projects and improve safety standards, exterior wall insulation construction needs to solve the problem that traditional hanging baskets are too large and cannot adapt to special roof shapes and structures. Summary of the invention

[0003] The present application provides a cantilever device and installation method for a sloping roof triangular bracket with a front-cantilevered and rear-pullable hanging basket, which can solve the problem that a traditional hanging basket cannot adapt to a special roof shape structure due to its large size.

[0004] The technical solution of this application is as follows: A front-lift and rear-lift hanging basket cantilever device for a sloping roof triangular bracket, comprising: The base is in the shape of a rectangular box and is open upwards; Two support frames are symmetrically arranged along the midline of the long side of the base, and the support frames have extension arms that are shorter in front and longer in the back, and the extension arms abut against and are fixedly connected to the front and rear inner walls of the base; A cantilever frame is clamped by the two support frames and fixedly connected to the extension arms thereof, and a sliding shaft for cable connection is provided at the front end and the top end of the cantilever frame; Two tie rods are respectively arranged on both sides of the support frame, the upper ends of the tie rods are hinged to the upper ends of the long extension arms, and the lower ends are hinged to the cantilever frame; There are two front brackets, which are respectively arranged at two ends of the front side of the base.

[0005] Furthermore, a plurality of hinge holes are provided on the side of the cantilever frame, and hinge holes are provided at the connection between the support frame and the tie rod and the cantilever frame.

[0006] The present application also provides a method for installing a hanging basket cantilever device, comprising the following steps: Step 1: Measure and locate the reliable wall at the top of the building to determine the installation position of the hanging basket cantilever device, drill holes at the location and install expansion screws; Step 2: After opening a through hole in the roof beam directly behind the installation position, pass the load-bearing steel wire rope and safety rope through it or wrap the load-bearing steel wire rope and safety rope around the roof beam. After installing the load-bearing steel wire rope and safety rope, fix them with rope clamps, and wrap them with flexible wrapping materials at the contact points between the load-bearing steel wire rope and safety rope and the roof beam; Step 3: Place the hanging basket cantilever device at the installation location, use chemical anchor bolts to fix the front bracket to the reliable wall in the horizontal direction through expansion screws, and connect the base to the reliable wall in the vertical direction through expansion screws; Step 4: Adjust the forward extension of the cantilever frame so that the distance between the hanging basket and the outer wall is greater than 30cm; Step 5: Turn the front end of the cantilever frame upwards so that the front end is lifted up to a height of 5cm~6cm; at the same time, connect the load-bearing wire rope and the safety rope to the top of the cantilever frame and the front end sliding shaft in turn, and then tighten the load-bearing wire rope and the safety rope; Step 6: Repeat steps 1 to 5 to install another hanging basket cantilever device. When installing another hanging basket cantilever device, control the distance between the front ends of the cantilever frames of the two hanging basket cantilever devices to be 3 cm to 5 cm less than the length of the hanging basket.

[0007] Furthermore, in step 2, the number of rope clamps is greater than or equal to 4, the U-shaped opening directions of the rope clamps are consistent and are on the front side of the roof truss beam, and when the rope clamps are installed, the rope clamps are clamped in sequence from the side close to the roof truss beam to the side away from the roof truss beam, and the load-bearing steel wire rope and the safety rope are arched between the last rope clamp and the previous rope clamp.

[0008] Due to the adoption of the above technical solution, the beneficial effects of this application are as follows: 1. The hanging basket cantilever device of the present application is more suitable for the construction of sloping roofs than the traditional hanging baskets. Since the sloping roofs have sloping decorative tiles and other shapes, and the outer side of the sloping roofs is generally a cantilevered eaves gutter with a complex shape, the traditional standard hanging basket cannot be installed and set up. However, the present application can be fixedly connected to a reliable wall only through the base and the front bracket, and the roof beam structure is fully utilized for cable tie. The tie is reliable and the construction is more convenient, which can simplify the installation steps and shorten the installation period.

[0009] 2. The cantilever frame in this application can adjust its length according to specific working conditions, so as to realize the application of one device in multiple working scenes. In this application, the cantilever frame has a simple structure and is easy to adjust. It can be normally installed in reliable positions such as gutter eaves. The installation process does not affect the construction of the inclined roof decorative tiles, and can create good conditions for the intervention and interlacing of the exterior wall insulation construction, which can significantly improve the flexibility of the construction arrangement.

[0010] 3. The front end of the cantilever frame is tilted 5-6cm, so that the cantilever frame generates prestress in the working state, thereby increasing the overall rigidity of the cantilever frame and ensuring the stable and safe performance of the hanging basket suspension platform after installation.

[0011] 4. Clamp the rope clamps in sequence from the side close to the roof beam to the side far away from the roof beam, and make the load-bearing wire rope and safety rope arch between the last rope clamp and the previous rope clamp. The U-shaped bolt buckle is set at the tail of the wire rope, and the rope clamp is set at the working section to ensure that the wire rope of the entire hanging basket system is firmly fixed, thereby ensuring safe construction.

[0012] 5. The hanging basket cantilever device in this application does not need to be counterweighted, and the load-bearing wire rope and the safety wire rope are both softly connected to the concrete structure, ensuring the adaptability of this structure to the inclined roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0014] Figure 1 It is a structural schematic diagram of the hanging basket cantilever device in this application; Figure 2 This is a schematic diagram of the sliding shaft structure in this application; Figure 3 This is a large-scale drawing of the installation position of the hanging basket cantilever device in this application; Figure 4 It is the installation detail drawing of the hanging basket cantilever device in this application; Figure 5 This is a force diagram of the hanging basket cantilever device in this application; In the attached picture: 1. Base; 2. Support frame; 2-1. Extension arm; 3. Cantilever frame; 4. Sliding shaft; 5. Tie rod; 6. Front bracket; 7. Hinge hole. DETAILED DESCRIPTION

[0015] Based on the background technology, in order to construct the exterior wall of a building with complex shapes such as a sloping roof, the present application proposes a sloping roof triangular bracket front-lift and rear-pull hanging basket cantilever device, as shown in the attached Figure 1 ~Attached Figure 4 As shown, including: A base 1 is in a rectangular box shape and is open upward; Two support frames 2 are arranged symmetrically along the midline of the long side of the base 1, and the support frames 2 have extension arms 2-1 that are shorter in front and longer in the back, and the extension arms 2-1 abut against and are fixedly connected to the front and rear inner walls of the base 1; A cantilever frame 3 is clamped by the two support frames 2 and fixedly connected to the extension arms 2-1. The front end and the top end of the cantilever frame 3 are provided with a sliding shaft 4 for cable connection; Two tie rods 5 are respectively arranged on both sides of the support frame 2, the upper end of the tie rod 5 is hinged to the upper end of the long extension arm 2-1, and the lower end is hinged to the cantilever frame 3; There are two front brackets 6 , which are respectively arranged at two ends of the front side of the base 1 .

[0016] In this embodiment, the base 1, the support frame 2 and the front bracket 6 are all made of 50×50 angle steel. The base 1 is rectangular, and the angle steel opening is inward to form a box shape with upper and lower openings, and the lower opening is partially open, so that the bottom surface of the base 1 can be placed on the support frame 2. The two extension arms 2-1 of the support frame 2 are short in front and long in the back, and are fixedly connected to the front and rear inner walls of the base 1. The two support frames 2 clamp the cantilever frame 3 and are fixedly connected. A number of hinge holes 7 are provided on the side of the cantilever frame 3, and the cantilever frame 3 and the extension arm 2-1 are fixedly connected by bolts screwed into the hinge holes 7. There are a number of hinge holes 7, which are used to adjust the forward extension length of the cantilever frame 3 to achieve multi-scenario application.

[0017] In this embodiment, the tie rod 5 is hinged to the cantilever frame 3 and the extension arm 2-1, and the length of the cantilever frame 3 can be adjusted at any time according to the exterior wall structure of the building, thereby expanding the applicable scenarios of the device.

[0018] In this embodiment, the front bracket 6 has two functions. One is to strengthen and fix the device in the horizontal direction. The other is that if the installation position of the base 1 is a non-horizontal plane, the front bracket 6 can provide horizontal support and then level the base 1 by other means.

[0019] In this embodiment, as shown in the attached Figure 2 As shown, the sliding shaft 4 has the effect of preventing the rope from falling off. The sliding shaft 4 is a rotating wheel-limiting shaft structure, and the cable is inserted between the rotating wheel and the limiting shaft. Figure 5 , the anti-overturning calculation process of the cantilever device in this application is as follows: Load statistics: (1) Overhanging device: 25 kg (2 × 25 kg = 50 kg); (2) Weight of steel platform: 350 kg (3 sections x 2 m = 6 m, hoist 50*2 = 100 kg, safety lock 5*2 = 10 kg, electrical box 15 kg); (3) Load-bearing wire rope: 15 kg (based on length 0.25 kg × 30 meters × 2 pieces); (4) Safety rope: 15 kg (length 0.25 kg x 30 m x 2 ropes); (5) Cable: 6kg (based on 30m length); (6) Heavy hammer: 24kg (12kg x 2); (7) Safety limit load: 350 kg (actual load: 150 kg for 2 workers, 200 kg for construction tools and materials); Calculation of standard value of vertical load: Q1 = (Gk+Qk) / 2; Where: Q1 — Standard value of vertical load of power wire rope of hanging basket (KN); Gk — standard value of deadweight of hanging basket and wire rope (KN); Qk — standard value of construction live load (KN); Gk=(350kg+15kg+15kg+6kg+24kg)×9.8N / kg ≈4.02KN; <350kg is the total weight of the hanging basket, electric box and other accessories>; Qk=350kg×9.8N / kg=3.43KN; Q1=(4.02KN+3.43KN)÷2≈3.73KN; The total weight of the load-bearing wire rope is: W=4.02+3.43=7.45KN; The overturning moment is: W×L / 2=7.45×1 / 2=3.73KN·m; The anti-overturning moment is: (W / 2+P)×(0.36×sinα+0.18×cosα) / 2; = (7.45 / 2 + 54) × (0.36 × sin63° + 0.18 × cos63°) / 2 = 11.61 KN; The anti-overturning moment ratio is: 11.61 / 3.73=3.11>3, which meets the requirements.

[0020] The present application also provides a method for installing a front-cantilevered and rear-pullable hanging basket cantilever device for a sloping roof triangular bracket, comprising the following steps: Step 1: Measure and locate the reliable wall at the top of the building to determine the installation position of the hanging basket cantilever device, drill holes at the location and install expansion screws; Step 2: After opening a through hole in the roof beam directly behind the installation position, pass the load-bearing steel wire rope and safety rope through it or wrap the load-bearing steel wire rope and safety rope around the roof beam. After installing the load-bearing steel wire rope and safety rope, fix them with rope clamps, and wrap them with flexible wrapping materials at the contact points between the load-bearing steel wire rope and safety rope and the roof beam; Step 3: Place the hanging basket cantilever device at the installation location, use chemical anchor bolts to fix the front bracket to the reliable wall in the horizontal direction through expansion screws, and connect the base to the reliable wall in the vertical direction through expansion screws; Step 4: Adjust the forward extension of the cantilever frame so that the distance between the hanging basket and the outer wall is greater than 30cm; Step 5: Turn the front end of the cantilever frame upwards so that the front end is lifted up to a height of 5cm~6cm; at the same time, connect the load-bearing wire rope and the safety rope to the top of the cantilever frame and the front end sliding shaft in turn, and then tighten the load-bearing wire rope and the safety rope; Step 6: Repeat steps 1 to 5 to install another hanging basket cantilever device. When installing another hanging basket cantilever device, control the distance between the front ends of the cantilever frames of the two hanging basket cantilever devices to be 3 cm to 5 cm less than the length of the hanging basket.

[0021] After the installation of the hanging basket cantilever device is completed, it is necessary to thread the load-bearing steel wire rope to connect the hanging basket or the suspension platform. In the specific implementation process, after the insertion end of the steel wire rope passes through the roller groove on the swing arm of the safety lock of the hanging basket or the suspension platform, insert it into the rope inlet at the upper end of the hoist until the insertion end cannot move forward, lift the steel wire rope slightly and insert it again with force, the purpose is to make the steel wire rope inserted tightly into the hoist. Then turn the conversion switch and press the rising button to make the steel wire rope automatically pass through the transmission plate of the hoist, and lead the steel wire rope through the guide pulley at the lower end of the hoist bracket to the outside of the hanging basket or the suspension platform. The hoists at both ends thread the ropes respectively until the steel wire rope is tightened and stop immediately. When threading the safety rope, insert the insertion end of the safety rope into the rope inlet above the safety lock, push it by hand, and after it passes freely through the safety lock, pull the steel wire rope out from the rope outlet below the safety lock until the steel wire rope is tightened. It should be noted that before the load-bearing wire rope and safety rope are inserted into the hoist and safety lock, the load-bearing wire rope and safety rope must be straightened out to avoid twisting of the wire rope.

[0022] As a preferred embodiment of the present application, in step 2, the number of rope clamps is greater than or equal to 4, the U-shaped opening directions of the rope clamps are consistent and are on the front side of the roof truss beam, and when the rope clamps are installed, the rope clamps are clamped in sequence from the side close to the roof truss beam to the side away from the roof truss beam, and the load-bearing steel wire rope and the safety rope are arched between the last rope clamp and the previous rope clamp.

[0023] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0024] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A cantilever device for a sloping roof triangular bracket with a front-lift and rear-pull hanging basket, characterized in that: include: The base is in the shape of a rectangular box and is open upwards; Two support frames are symmetrically arranged along the midline of the long side of the base, and the support frames have extension arms that are shorter in front and longer in the back, and the extension arms abut against and are fixedly connected to the front and rear inner walls of the base; A cantilever frame is clamped by the two support frames and fixedly connected to the extension arms thereof, and a sliding shaft for cable connection is provided at the front end and the top end of the cantilever frame; Two tie rods are respectively arranged on both sides of the support frame, the upper ends of the tie rods are hinged to the upper ends of the long extension arms, and the lower ends are hinged to the cantilever frame; There are two front brackets, which are respectively arranged at two ends of the front side of the base.

2. The device for cantilevering a sloping roof triangular bracket with a front-cantilevered and rear-pullable hanging basket according to claim 1, characterized in that: A plurality of hinge holes are arranged on the side of the cantilever frame, and hinge holes are arranged at the connection between the support frame and the tie rod and the cantilever frame.

3. A method for installing the hanging basket cantilever device according to claim 2, characterized in that: The following steps are involved: Step 1: Measure and locate the reliable wall at the top of the building to determine the installation position of the hanging basket cantilever device, drill holes at the location and install expansion screws; Step 2: After opening a through hole in the roof beam directly behind the installation position, pass the load-bearing steel wire rope and safety rope through it or wrap the load-bearing steel wire rope and safety rope around the roof beam. After installing the load-bearing steel wire rope and safety rope, fix them with rope clamps, and wrap them with flexible wrapping materials at the contact points between the load-bearing steel wire rope and safety rope and the roof beam; Step 3: Place the hanging basket cantilever device at the installation location, use chemical anchor bolts to fix the front bracket to the reliable wall in the horizontal direction through expansion screws, and connect the base to the reliable wall in the vertical direction through expansion screws; Step 4: Adjust the forward extension of the cantilever frame so that the distance between the hanging basket and the outer wall is greater than 30cm; Step 5: Turn the front end of the cantilever frame upwards so that the front end is lifted up to a height of 5cm~6cm; at the same time, connect the load-bearing wire rope and the safety rope to the top of the cantilever frame and the front end sliding shaft in turn, and then tighten the load-bearing wire rope and the safety rope; Step 6: Repeat steps 1 to 5 to install another hanging basket cantilever device. When installing another hanging basket cantilever device, control the distance between the front ends of the cantilever frames of the two hanging basket cantilever devices to be 3 cm to 5 cm less than the length of the hanging basket.

4. The method for installing a cantilever device of a triangle bracket of a sloping roof with a front-cantilever and a rear-pull type hanging basket according to claim 3 is characterized in that: In step 2, the number of rope clamps is greater than or equal to 4, the U-shaped opening directions of the rope clamps are consistent and are on the front side of the roof truss beam. When installing the rope clamps, the rope clamps are clamped in sequence from the side close to the roof truss beam to the side away from the roof truss beam, and the load-bearing steel wire rope and the safety rope are arched between the last rope clamp and the previous rope clamp.

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