Method for erecting a mobile scaffold

Abstract

The present application relates to the field of attached lifting scaffold, disclose a kind of attached lifting scaffold erecting method, comprising the following steps: step one, prepare several vertical rods and walkway board, erect bracket platform and carry out horizontal adjustment;Step two, bottom walkway board is laid on bracket platform, bottom walkway board includes bottom drawbridge board and bottom fixed plate, bottom drawbridge board and bottom fixed plate are hinged;Step three, install vertical rod, and the bottom of vertical rod is bolted with bottom walkway board, and temporary support is used to vertical rod to ensure that vertical rod and bottom walkway board are vertical;Step four, install the drawbridge mechanism of second layer on vertical rod;To solve the problem that drawbridge board is difficult to pull up when the length is too long.

Description

Technical Field

[0001] This invention relates to the field of attached lifting scaffolding, and more specifically to a method for erecting attached lifting scaffolding. Background Technology

[0002] During the erection of attached lifting scaffolding, to ensure smooth operation of the scaffolding later, movable walkways (suspended bridges) and fixed connecting plates are usually installed at the intersection of the tower crane jib and the scaffolding. Before lifting the attached lifting scaffolding, the operator pulls the two first steel wire ropes, thereby flipping and lifting the two suspended bridges respectively. The two suspended bridges flip open to both sides. After the suspended bridges are erected, they are tied to the uprights with wire to prevent the suspended bridges from colliding with the tower crane jib. After being lifted into position, the suspended bridges are restored to level and fixed with bolts to prevent the scaffolding from deforming due to the walkway being disconnected for a long time.

[0003] According to the "Safety Technical Specification for Attached Lifting Scaffolding in Building Construction," the step distance of the scaffold should not exceed 2m, meaning the height difference between the upper and lower walkway panels should not exceed 2m. However, in some cases, due to construction conditions, the tower crane is too close to the main building structure, and the length of the suspension bridge panel needs to be able to span all three jibs of the tower crane simultaneously. Due to the step distance limitation, the height of the connection point between the first wire rope and the end upright relative to the suspension bridge panel should not exceed 2m. The longer the suspension bridge panel, the heavier it is, and the smaller the angle between the first wire rope and the suspension bridge panel. This results in fewer vertical components of the force required by workers to pull the suspension bridge panel, making it more difficult to lift the suspension bridge panel with the first wire rope. When the length of the suspension bridge panel exceeds 2m, it can no longer be erected, otherwise it will collide with the walkway panel of the upper layer. Therefore, the suspension bridge panel can only tilt towards the side closer to the tower crane jib, making it very easy for it to fall back under gravity and collide with the tower crane jib. Summary of the Invention

[0004] The present invention aims to provide a method for erecting attached lifting scaffolding to solve the problem that it is difficult to use steel wire ropes to pull up the bridge deck when the length of the bridge deck is too long.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for erecting an attached lifting scaffold, comprising the following steps:

[0006] Step 1: Prepare several uprights and walkway boards, erect the bracket platform and adjust its level;

[0007] Step 2: Lay the bottom walkway slab on the bracket platform. The bottom walkway slab includes a bottom suspension bridge slab and a bottom fixing slab, which are hinged together.

[0008] Step 3: Install the uprights. Bolt the bottom of the uprights to the bottom walkway slab. Use temporary supports for the uprights to ensure that the uprights and the bottom walkway slab are perpendicular.

[0009] Step 4: Install the second-layer suspension bridge mechanism on the upright. The suspension bridge mechanism includes two symmetrically arranged suspension bridge units. Each suspension bridge unit includes a first steel wire rope, a limiting component, and a fixed connecting plate, a first suspension bridge plate, and a second suspension bridge plate that are hinged in sequence. The distance between the axis of symmetry of the two suspension bridge units and the fixed connecting plate, the first suspension bridge plate, and the second suspension bridge plate is from far to near. The ends of the two symmetrically arranged second suspension bridge plates are detachably connected. The fixed connecting plate is fixedly connected to the upright. The first steel wire rope connects the upright and the end of the first suspension bridge plate near the second suspension bridge plate. The limiting component can restrict the relative rotation of the first suspension bridge plate and the second suspension bridge plate. The sum of the lengths of the first suspension bridge plate and the second suspension bridge plate is equal to the length of the bottom suspension bridge plate.

[0010] Step 5: Repeat step 4 to continue installing several layers of the suspension bridge mechanism;

[0011] Step 6: Install the lifting equipment, test run the attached lifting scaffold, and check the stability of each connection point of the attached lifting scaffold.

[0012] The beneficial effects of this plan are:

[0013] 1. Before the attached lifting scaffold is raised and put into operation, the first layer of the suspension bridge mechanism needs to be opened to prevent the suspension bridge plate from colliding with the tower crane boom. First, the operator removes the connection between the two second suspension bridge plates (usually a bolted connection), and pulls up the first suspension bridge plate through the first wire rope. The first suspension bridge plate rotates around the end of the fixed connecting plate, thereby pulling up the second suspension bridge plate, thus achieving the effect of simultaneously pulling up the first and second suspension bridge plates.

[0014] 2. Compared to the prior art where the first wire rope is directly connected to the end of the suspension bridge plate, in this solution, the suspension bridge plate is divided into a first suspension bridge plate and a second suspension bridge. After the first wire rope is connected to the end of the first suspension bridge plate, since the first suspension bridge plate is shorter than the suspension bridge plate in the prior art, the angle between the first suspension bridge plate and the first wire rope is larger. When the first wire rope is pulled, the vertical component of the force is larger, making it easier to overcome the vertical gravity, thereby lifting the first suspension bridge plate and the second suspension bridge plate.

[0015] 3. When the length of the suspension bridge deck exceeds 2m, the suspension bridge deck in the existing technology cannot be erected and tends to tilt towards the side closer to the tower crane arm, making it difficult to securely fasten and posing a significant danger. In this solution, the first and second suspension bridge decks automatically fold together after being pulled up. As long as the lengths of both the first and second suspension bridge decks do not exceed 2m, they will not collide with the walkway deck on the upper floor. This fully meets the requirements of most construction scenarios. The first and second suspension bridge decks tilt towards the side away from the tower crane arm and will not fall back under gravity to collide with the tower crane arm, making it safer and more reliable.

[0016] 4. Since there is no foothold for operators below the bottom of the frame, it is dangerous to lift the bottom suspension bridge plate. It is not advisable to divide the bottom suspension bridge plate into two pieces. A single suspension bridge plate is more rigid and safer.

[0017] Preferably, as an improvement, the suspension bridge unit further includes several connectors. The fixed connecting plate, the first suspension bridge plate, and the second suspension bridge plate are pressed together along their length. The connectors are bolted to the sides of the fixed connecting plate, the first suspension bridge plate, and the second suspension bridge plate to achieve connection between adjacent plates. The hinge points of the fixed connecting plate and the first suspension bridge plate are located on their upper surfaces, and the hinge points of the first suspension bridge plate and the second suspension bridge plate are located on their lower surfaces. This configuration has the following effects:

[0018] 1. When the attached lifting scaffold is in position and the suspension bridge mechanism is closed, the fixed connecting plate, the first suspension bridge plate and the second suspension bridge plate are fixed together by the connectors to make the suspension bridge mechanism more stable and enhance the overall stability of the attached lifting scaffold.

[0019] 2. In the prior art, when opening the suspension bridge mechanism, the two suspension bridge plates are usually flipped open to the sides. To achieve the upward flipping of the suspension bridge plates, the hinge position between the suspension bridge plates and the fixed connecting plate is on the upper surface. However, since the suspension bridge plates themselves have a certain thickness, the lower surface of the suspension bridge plate at the end away from the fixed connecting plate needs to be rotated around the hinge position to the same height as the hinge position. At this time, the lower surface of the suspension bridge plate at the end away from the fixed connecting plate is horizontally away from the fixed connecting plate. Therefore, the two suspension bridge plates need a certain gap to meet this horizontal movement. If the ends of the two suspension bridge plates are pressed together, the flipping of the suspension bridge plates cannot be achieved.

[0020] However, to ensure the stability of the overall structure, it is necessary to minimize the gaps between adjacent panels (walkway panels) to restrict the movement between the panels, reduce collisions during construction, and prevent the connecting bolts from loosening during collisions. In the prior art, the end of the suspension bridge plate furthest from the fixed connecting plate corresponds to the end of the second suspension bridge plate furthest from the fixed connecting plate in this solution. However, since the first suspension bridge plate directly drives the second suspension bridge plate to move closer to the fixed connecting plate in the horizontal direction, neither the upper nor lower surface of the end of the second suspension bridge plate furthest from the fixed connecting plate will move away from the fixed connecting plate in the horizontal direction. Therefore, it is not necessary to leave a certain gap between the two second suspension bridge plates to ensure that the suspension bridge plates can be flipped, thereby ensuring the stability of the overall structure.

[0021] Preferably, as an improvement, a second steel wire rope is also prepared in step one. A pull ring is provided on the side of the first suspension bridge plate near the second suspension bridge plate, and the pull ring can be connected to the second steel wire rope. With this setup, since the frame step distance is usually 2m and the building floor height is usually above 2.9m, the frame is lifted to the height of one floor each time. Therefore, it is often necessary to open both suspension bridge mechanisms simultaneously. The upper end of the second steel wire rope is connected to the first suspension bridge plate of the upper floor, and the lower end is connected to the first suspension bridge plate of the current floor. Simply pulling the first steel wire rope of the upper floor is enough to open both suspension bridge mechanisms simultaneously. Loosening the connection between the upper end of the second steel wire rope and the first suspension bridge plate of the upper floor causes the upper end of the second steel wire rope to drop downwards, inverting the second steel wire rope. The new lower end of the second steel wire rope connects to the first suspension bridge plate of the lower floor, so that both suspension bridge mechanisms can be opened simultaneously the next time.

[0022] Preferably, as an improvement, a hinge assembly is provided at the hinge position of the first and second suspension bridge plates. The hinge assembly includes a first ear plate and a second ear plate. The first ear plate is fixed to the first suspension bridge plate, and the second ear plate is fixed to the second suspension bridge plate. The limiting member is a connecting bolt, which includes a smooth section and a threaded section. When the smooth section passes through the first and second ear plates, the first and second suspension bridge plates are hinged. When the threaded section passes through and is threadedly connected to the first and second ear plates, the first and second suspension bridge plates are fixedly connected.

[0023] With this setup, when the suspension bridge mechanism needs to be opened, one must walk to the second suspension bridge plate and disconnect the connection between the two second suspension bridge plates. If there are no connecting parts and limiting parts at this time, the second suspension bridge plate will flip downward around the end of the first suspension bridge plate, causing the operator to fall down. In order to prevent the second suspension bridge plate from flipping downward, this solution not only sets connecting parts to fix the first and second suspension bridge plates, but also sets connecting bolts to restrict the relative rotation of the first and second suspension bridge plates.

[0024] Specifically, after disconnecting the connection between the two second suspension bridge plates, the operator stands on the first suspension bridge plate, removes the connector, and rotates the connecting bolt so that the threaded section passes through the first and second ear plates, and the smooth section passes through the first and second ear plates, allowing the first and second suspension bridge plates to rotate. Then, the first wire rope is used to pull up the first and second suspension bridge plates. Conversely, after lowering the first and second suspension bridge plates using the first wire rope, the connector is installed so that the threaded section passes through the first and second ear plates, preventing rotation between the first and second suspension bridge plates and ensuring the stability of the overall structure.

[0025] Preferably, as an improvement, the fixed connecting plate is provided with a horizontal sliding groove, and the limiting element is a support rod. The support rod and the sliding groove are slidably connected. After the support rod slides out of the sliding groove, it can provide upward support force below the first and second suspension bridge plates. This configuration has the following effects:

[0026] 1. After disconnecting the connection between the two second suspension bridge plates, compared to using connecting bolts as limiting parts and adding connecting parts to fix the first and second suspension bridge plates, using support rods as support rods is more convenient and quick. Simply slide the support rod out of the groove. The support rod supports the first and second suspension bridge plates below, which can lock the first and second suspension bridge plates and prevent the second suspension bridge plate from flipping downward relative to the first suspension bridge plate.

[0027] 2. Compared with connecting bolts, strengthening the fixed connection between the first and second suspension bridge plates allows the second suspension bridge plate to be in a cantilevered state. The support rod directly provides vertical upward support to the second suspension bridge plate. The part of the support rod left in the groove can also provide a reaction force for the support rod's support force, thereby making the overall structure more stable.

[0028] 3. Then, use the first wire rope to pull up the first and second suspension bridge plates and retract the support rod into the slide groove to prevent the support rod from colliding with the tower crane boom when lifting the frame.

[0029] 4. During winter construction, to avoid the tower crane jib, protective netting is usually not installed at the positions of the first and second suspension bridge plates. Cold winds and moisture from outside can easily come into contact with the first and second suspension bridge plates, causing them to freeze. People walking on the first and second suspension bridge plates are prone to slipping and falling, creating a safety hazard. In this solution, when the first steel wire rope pulls up the first and second suspension bridge plates, due to inertia, the second suspension bridge plate collides with the first suspension bridge plate and vibrates. Water droplets and ice on both sides of the first and second suspension bridge plates are shaken off, making it less likely for the first and second suspension bridge plates to freeze in winter.

[0030] Preferably, as an improvement, the end of the support rod is a convex arc-shaped surface, and the lower surface of the second suspension bridge plate is a concave arc-shaped surface, so that when the second suspension bridge is placed horizontally, the end of the support rod can contact the lower surface of the second suspension bridge plate. This configuration has the following effects:

[0031] 1. The curved surface reduces friction between the support rod and the second suspension bridge, increasing the durability of both.

[0032] 2. When the support rod has no power source for sliding, it usually needs to be slid manually in the groove. However, when the first suspension bridge plate and the second suspension bridge plate are pulled up by the first steel wire rope, the lower surface of the second suspension bridge plate will push the end of the support rod, thereby causing the support rod to retract into the groove. There is no need to manually slide the support rod back, which saves time and effort.

[0033] 3. When the support rod is powered, after the frame is raised to the correct position, the operator only needs to pull the first wire rope and slowly release it. The support rod slides out of the groove and pushes the lower surface of the second suspension bridge plate, thereby driving the first and second suspension bridge plates back to the horizontal position. During this process, the support rod provides some vertical support to the second suspension bridge plate, saving the operator's physical strength and making the operation safer and easier.

[0034] Preferably, as an improvement, a third steel wire rope is connected to the end of the bottom suspension bridge plate. The upper end of the third steel wire rope is connected to the pull ring of the first suspension bridge plate of the upper-level suspension bridge mechanism. After the first steel wire rope of the upper level pulls up the first suspension bridge plate, the top of the bottom suspension bridge plate is located between the first and second suspension bridge plates of the upper level. With this configuration, limited by the frame step distance not exceeding 2m, in this solution, when the third steel wire rope pulls up the suspension bridge plate, the excessively long part of the bottom suspension bridge plate is placed between the first and second suspension bridge plates of the upper level. The upper end of the bottom suspension bridge plate is clamped by the first and second suspension bridge plates, thereby fixing the bottom suspension bridge plate more stably.

[0035] Preferably, as an improvement, in step five, after the installation of several layers of suspension bridge mechanisms is completed, the upper walkway plate mechanism is installed. The upper walkway plate mechanism is located above the suspension bridge mechanism. The uprights include mid-span uprights, which are located between the tower crane jibs. The upper part of the mid-span uprights is fixedly connected to the upper walkway plate mechanism, and the lower part of the mid-span uprights is detachably connected to the second suspension bridge plate.

[0036] With this setup, the tower crane jib is usually located on both sides of the tower crane. Therefore, the uprights installed in the corresponding positions in the middle of the tower crane will not usually collide with the jib. During the construction process, the top two floors are usually construction floors. At this time, the concrete of the main structure does not have sufficient strength, so the formwork cannot be removed and the tower crane jib cannot be installed on the concrete. Therefore, the ordinary walkways on the upper floors of the frame will not collide with the tower crane jib during operation. There is no need to design the ordinary walkways as movable suspension bridges. The stability of fixed ordinary walkways is higher than that of movable suspension bridges. Therefore, the reliability of fixing the upper part of the mid-span and the upper walkway mechanism is relatively high.

[0037] By connecting the mid-span upright and the second suspension bridge plate, the stability of the second suspension bridge plate is increased, and vertical support is provided for the end of the second suspension bridge plate away from the fixed connection plate, thereby reducing the deflection of the second suspension bridge plate and increasing the overall structural stability.

[0038] Preferably, as an improvement, the upper walkway slab mechanism includes ordinary walkway slabs, and the uprights also include end uprights. The end uprights vertically connect the fixed connecting plates, bottom fixed plates, and ordinary walkway slabs of all layers. Horizontal truss units are provided between the ordinary walkway slabs of different layers, and the truss units are fixed to the mid-span uprights and end uprights. This arrangement increases the horizontal connection strength between the mid-span uprights and end uprights through the truss units, thereby increasing the overall stability of the structure.

[0039] Preferably, as an improvement, step one also includes diagonal bracing, which connects the ordinary walkway slab and the central upright. This arrangement increases the rigidity of the upper walkway slab mechanism through the diagonal bracing, thereby increasing the overall structural strength. The ordinary walkway slab provides upward tension to the central upright through the diagonal bracing, preventing the central upright from sinking under gravity. Attached Figure Description

[0040] Figure 1 This is a three-dimensional axonometric view of the suspension bridge unit in Example 1 from a top-down perspective;

[0041] Figure 2 This is a three-dimensional axonometric view of the bottom suspension bridge plate and the bottom fixing plate of Example 1;

[0042] Figure 3 This is a three-dimensional axonometric view of the suspension bridge unit in Example 1 from a bottom view angle;

[0043] Figure 4 This is a schematic diagram of the first bolt head and the connecting section of the connecting bolt in Example 1 when they are not connected;

[0044] Figure 5 This is a schematic diagram showing the completed setup of Example 1;

[0045] Figure 6 This is a schematic diagram of the second and third layer suspension bridge mechanisms being opened before the attached lifting scaffolding is lifted in Example 1.

[0046] Figure 7 This is a schematic diagram of the bottom suspension bridge mechanism and the second-layer suspension bridge mechanism being opened before the attached lifting scaffolding in Example 1 is lifted.

[0047] Figure 8 This is a three-dimensional axonometric view of the suspension bridge unit in Example 2 from a bottom-up perspective. Detailed Implementation

[0048] The following detailed description illustrates the specific implementation method:

[0049] The reference numerals in the accompanying drawings include: upper walkway mechanism 1, ordinary walkway 101, truss unit 102, diagonal brace 103, suspension bridge mechanism 2, fixed connecting plate 210, slide 211, support rod 212, suspension bridge plate 220, first suspension bridge plate 230, first connecting block 231, second wire rope 233, second suspension bridge plate 240, second connecting block 241, concave arc surface 242, first wire rope 250, connecting bolt 280, first bolt head 281, connecting section 282, smooth section 283, threaded section 284, second bolt head 285, bottom suspension bridge mechanism 3, bottom fixed plate 310, bottom suspension bridge plate 320, third connecting block 321, pull ring 322, third wire rope 330, hinge assembly 340, connector 350, mid-span upright 401, end-span upright 402, tower crane jib 5.

[0050] Example 1

[0051] Example 1 is a method for erecting an attached lifting scaffold, including the following steps:

[0052] Step 1: Prepare several uprights and walkways, erect a support platform and adjust its level. The support platform is a steel pipe scaffold.

[0053] Step 2, setting up as follows Figure 5 The bottom suspension bridge mechanism 3 shown includes two symmetrically arranged bottom suspension bridge units. Details of some of the bottom suspension bridge units are not shown. Figure 5 The details are shown in the image. Figure 2 As shown, both bottom suspension bridge units include a bottom suspension bridge plate 320, a bottom fixing plate 310, and a third steel wire rope 330. Two sets of hinge assemblies 340 are provided on the upper surface of the connection end between the bottom suspension bridge plate 320 and the bottom fixing plate 310. A connector 350 is provided on each side. Each hinge assembly 340 includes a first ear plate, a second ear plate, and a rotating shaft. Figure 2 The pivot is omitted in both cases. The first ear plate is welded to the bottom fixed plate 310, and the second ear plate is welded to the bottom suspension bridge plate 320. The pivot passes through the first ear plate and the second ear plate and is rotatably connected to the first ear plate and the second ear plate. The connector 350 is a rectangular steel plate with four bolt holes. Pull rings 322 are welded to both sides of the bottom suspension bridge plate 320 away from the bottom fixed plate 310, and a third connecting block 321 is welded to the upper surface. The third connecting block has bolt holes.

[0054] Specifically, first, lay the bottom suspension bridge plate 320 and the bottom fixing plate 310 on the bracket platform (not shown in the figure), then pass the rotating shaft through the first ear plate and the second ear plate to hinge the bottom suspension bridge plate and the bottom fixing plate, bolt two of the bolt holes on the connector 350 to the bottom fixing plate 310, and bolt the other two bolt holes to the bottom suspension bridge plate 320, and bolt the third connecting block 321 on the two bottom suspension bridge units.

[0055] Step 3: Install the uprights. The uprights include a mid-span upright 401 and an end upright 402. The end upright 402 is bolted to the bottom fixing plate 310. The bottom of the mid-span upright 401 and the end of the bottom suspension bridge plate 320 away from the bottom fixing plate 310 are bolted together. Temporary supports are used to ensure that the uprights, the bottom fixing plate 310, and the bottom suspension bridge plate 320 are perpendicular. The temporary supports are steel pipes, one end of which is supported on the main building structure, and the other end is connected to the uprights through steel pipe fasteners.

[0056] Step 4: Install the second-layer suspension bridge mechanism 2 on the upright. The second-layer suspension bridge mechanism 2 includes a second steel wire rope 233 and two suspension bridge units symmetrically arranged on the left and right. Some details of the suspension bridge units are not shown in the image. Figure 5 The details are shown in the image. Figure 1 As shown, taking the suspension bridge unit on the left as an example, each suspension bridge unit includes a first steel wire rope 250, a fixed connecting plate 210, and a suspension bridge plate 220. In this scheme, the suspension bridge plate 220 is as follows: Figure 5 Based on the existing technology, the suspension bridge plate 220 is divided into two parts: a first suspension bridge plate 230 and a second suspension bridge plate 240. The sum of the lengths of the first and second suspension bridge plates is equal to the length of the bottom suspension bridge plate. The fixed connecting plate 210, the first suspension bridge plate 230, and the second suspension bridge plate 240 are sequentially pressed together from left to right. The axis of symmetry of the two symmetrically arranged suspension bridge units is located at the right end of the second suspension bridge plate 240. The connection method of the fixed connecting plate 210 and the first suspension bridge plate 230 is the same as the connection method of the bottom suspension bridge plate 320 and the bottom fixing plate 310.

[0057] like Figure 3 As shown, the lower surface of the connecting end of the first suspension bridge plate 230 and the second suspension bridge plate 240 is also provided with two sets of hinge components 340, and a connector 350 is provided on each side. The connector 350 at this position and Figure 2 The hinge assembly 340 is characterized by replacing the pivot of the hinge assembly 340 with a connecting bolt 280. Figure 3 The connecting bolt 280 is omitted in the text, such as Figure 4As shown, the connecting bolt 280 includes a first bolt head 281 and a bolt body. The bolt body, from left to right, includes an integrally formed connecting section 282 with progressively increasing diameters, a smooth section 283, a threaded section 284, and a second bolt head 285. The first bolt head 281 and the connecting section 282 are threadedly connected. When the smooth section 283 passes through the first and second ear plates, the first suspension bridge plate 230 and the second suspension bridge plate 240 are hinged. When the threaded section 284 passes through and is threadedly connected to the first and second ear plates, the first suspension bridge plate 230 and the second suspension bridge plate 240 are fixedly connected. Two first connecting blocks 231 are welded to the upper surface of the first suspension bridge plate 230 near the second suspension bridge plate 240. Rope holes are opened on the first connecting blocks 231, and a first steel wire rope 250 passes through the rope holes and connects to the first connecting blocks 231. On both sides of the first suspension bridge plate 230 near the second suspension bridge plate 240, a pull ring 322 is welded. The second wire rope 233 passes through the pull ring 322 and connects to it. A maximum of two second wire ropes 233 are required in a suspension bridge system. On the upper surface of the second suspension bridge plate 240 away from the first suspension bridge plate 230, two second connecting blocks 241 are welded. The second block has bolt holes, and the second connecting block 241 is connected to the second connecting block 241 on another suspension bridge unit by bolts.

[0058] Step 5: Repeat Step 4 to continue installing the third and fourth layer suspension bridge mechanisms 2; then install the upper walkway mechanism 1. The upper walkway mechanism 1 is located above the suspension bridge mechanism 2. The upper walkway mechanism 1 includes diagonal bracing rods 103 and three layers of ordinary walkway panels 101. A horizontal truss unit 102 is provided between the two lower walkway panels. The truss unit 102 is a frame of a truss structure welded from several rectangular tubes. The end uprights 402 are bolted to the sides of the ordinary walkway panels 101, the fixed connecting plate 210, and the bottom fixed plate 310 from top to bottom. The middle uprights 401 are bolted to the sides of the ordinary walkway panels 101, the second suspension bridge panel 240, and the bottom suspension bridge panel 320 from top to bottom. The truss unit 102 is bolted to the middle uprights 401 and the end uprights 402. The upper end of the diagonal bracing rod 103 is bolted to the ordinary walkway panel 101, and the lower end of the diagonal bracing rod 103 is bolted to the middle uprights 401.

[0059] Step 6: Install the lifting equipment, test-run the attached lifting scaffold, and check the stability of each connection point of the attached lifting scaffold.

[0060] In this embodiment, all plate-like components and uprights have equidistant bolt holes on their sides to facilitate connection and assembly. The steel wire ropes in the attached drawings are all represented by thickened straight lines. After the steel wire rope passes through the hole structure, it can be fixed by rope clips. In this embodiment, the connection method with the main building structure is to use existing wall-mounted supports. The lifting equipment uses existing electric hoists and their supporting systems, which will not be described in detail here.

[0061] The specific implementation steps for operating attached lifting scaffolding are as follows:

[0062] 1. Before the attached lifting scaffold is raised and operated, in order to avoid collision with the tower crane boom 5, the suspension bridge mechanism 2 at the corresponding height is opened. Specifically, the operator removes the bolts of the second connecting blocks 241 on the two second suspension bridge plates 240, removes the connecting piece 350 between the first suspension bridge plate 230 and the second suspension bridge plate 240, rotates the connecting bolt 280 so that the smooth section 283 of the connecting bolt 280 passes through the first ear plate and the second ear plate at the same time, and pulls up the first suspension bridge plate 230 through the first wire rope 250. The first suspension bridge plate 230 rotates around the end of the fixed connecting plate 210, thereby pulling up the second suspension bridge plate 240.

[0063] 2. Similarly, such as Figure 6 As shown, when both suspension bridge mechanisms 2 need to be opened simultaneously, the pull rings 322 of the first suspension bridge plates 230 of the two layers are connected together with the second steel wire rope 233 so that the two suspension bridge plate 220 mechanisms can be opened simultaneously.

[0064] 3. Similarly, such as Figure 7 As shown, when it is necessary to open the second-layer suspension bridge mechanism 2 and the bottom suspension bridge mechanism 3 at the same time, the pull rings 322 of the first suspension bridge plate 230 of the second layer and the bottom suspension bridge plate 220 of the bottom layer are connected together with the third steel wire rope 330 so that the second-layer suspension bridge mechanism 2 and the bottom suspension bridge mechanism 3 can be opened at the same time. At this time, the top of the bottom suspension bridge plate 320 is located between the first suspension bridge plate 230 and the second suspension bridge plate 240 of the second layer.

[0065] Example 2

[0066] The difference between Example 2 and Example 1 is that all connecting parts 350 are removed or reduced. Removing all connecting parts 350 is preferable in this example as it makes operation more convenient. The connecting bolts 280 are replaced with rotating shafts, such as... Figure 8 As shown, the fixed connecting plate 210 has two horizontal sliding grooves 211. Both sliding grooves 211 are set along the length of the fixed connecting plate 210, and the right end of the sliding grooves 211 penetrates the right side of the fixed connecting plate 210. A support rod 212 is slidably connected in the sliding groove 211. The right end of the support rod 212 is an outwardly convex arc surface. The lower surface of the second suspension bridge plate 240 is an inwardly concave arc surface 242. After the support rod 212 slides out of the sliding groove 211, it can provide an upward support force below the first suspension bridge plate 230 and the second suspension bridge plate 240. The length of the fixed connecting plate 210 is adaptively changed according to the length of the electric support rod 212. In the initial state, when the second suspension bridge is placed horizontally, the end of the support rod 212 can contact the lower surface of the second suspension bridge plate 240.

[0067] Example 3

[0068] The difference between Example 3 and Example 2 is that the support rod 212 is an electric telescopic rod, and the left end of the electric telescopic rod is bolted to the inner wall of the slide groove 211.

[0069] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for erecting an attached lifting scaffold, characterized in that... This includes the following steps: Step 1: Prepare several uprights and walkway boards, erect the bracket platform and adjust its level; Step 2: Lay the bottom walkway slab on the bracket platform. The bottom walkway slab includes a bottom suspension bridge slab and a bottom fixing slab, which are hinged together. Step 3: Install the uprights. Bolt the bottom of the uprights to the bottom walkway slab. Use temporary supports for the uprights to ensure that the uprights and the bottom walkway slab are perpendicular. Step 4: Install the second-layer suspension bridge mechanism on the upright. The suspension bridge mechanism includes two symmetrically arranged suspension bridge units. Each suspension bridge unit includes a first steel wire rope, a limiting component, and a fixed connecting plate, a first suspension bridge plate, and a second suspension bridge plate that are hinged in sequence. The distance between the axis of symmetry of the two suspension bridge units and the fixed connecting plate, the first suspension bridge plate, and the second suspension bridge plate is from far to near. The ends of the two symmetrically arranged second suspension bridge plates are detachably connected. The fixed connecting plate is fixedly connected to the upright. The first steel wire rope connects the upright and the end of the first suspension bridge plate near the second suspension bridge plate. The limiting component can restrict the relative rotation of the first suspension bridge plate and the second suspension bridge plate. The sum of the lengths of the first suspension bridge plate and the second suspension bridge plate is equal to the length of the bottom suspension bridge plate. Step 5: Repeat step 4 to continue installing several layers of the suspension bridge mechanism; Step 6: Install the lifting equipment, test run the attached lifting scaffold, and check the stability of each connection point of the attached lifting scaffold. The suspension bridge unit also includes several connectors. The fixed connecting plate, the first suspension bridge plate and the second suspension bridge plate are pressed together in the length direction. The connectors are bolted to the sides of the fixed connecting plate, the first suspension bridge plate and the second suspension bridge plate to realize the connection between adjacent plates. The hinge position of the fixed connecting plate and the first suspension bridge plate is located on the upper surface of both, and the hinge position of the first suspension bridge plate and the second suspension bridge plate is located on the lower surface of both. In step one, a second steel wire rope is also prepared. A pull ring is provided on the side of the first suspension bridge plate near the second suspension bridge plate. The pull ring can be connected to the second steel wire rope. The bottom suspension bridge plate is connected to a third steel wire rope at its end. The upper end of the third steel wire rope is connected to the pull ring of the first suspension bridge plate of the upper suspension bridge mechanism. After the first steel wire rope of the upper layer pulls up the first suspension bridge plate, the top of the bottom suspension bridge plate is located between the first suspension bridge plate and the second suspension bridge plate of the upper layer.

2. The method for erecting an attached lifting scaffold according to claim 1, characterized in that: A hinge assembly is provided at the hinge position of the first and second suspension bridge plates. The hinge assembly includes a first ear plate and a second ear plate. The first ear plate is fixed to the first suspension bridge plate, and the second ear plate is fixed to the second suspension bridge plate. The limiting component is a connecting bolt, which includes a smooth section and a threaded section. When the smooth section passes through the first and second ear plates, the first and second suspension bridge plates are hinged. When the threaded section passes through and is threadedly connected to the first and second ear plates, the first and second suspension bridge plates are fixedly connected.

3. The method for erecting an attached lifting scaffold according to claim 1, characterized in that: The fixed connecting plate has a horizontal sliding groove, and the limiting component is a support rod. The support rod and the sliding groove are slidably connected. After the support rod slides out of the sliding groove, it can provide an upward supporting force under the first suspension bridge plate and the second suspension bridge plate.

4. The method for erecting an attached lifting scaffold according to claim 3, characterized in that: The end of the support rod is a convex arc surface, and the lower surface of the second suspension bridge plate is a concave arc surface. When the second suspension bridge plate is placed horizontally, the end of the support rod can contact the lower surface of the second suspension bridge plate.

5. The method for erecting an attached lifting scaffold according to claim 1, characterized in that: In step five, after the installation of several layers of suspension bridge mechanisms is completed, the upper walkway plate mechanism is installed. The upper walkway plate mechanism is located above the suspension bridge mechanism. The uprights include the mid-span uprights, which are located between the tower crane jibs. The upper part of the mid-span uprights is fixedly connected to the upper walkway plate mechanism, and the lower part of the mid-span uprights is detachably connected to the second suspension bridge plate.

6. The method for erecting an attached lifting scaffold according to claim 5, characterized in that: The upper walkway slab mechanism includes ordinary walkway slabs, and the uprights also include end uprights. The end uprights vertically connect the fixed connecting plates, bottom fixed plates and ordinary walkway slabs of all layers. Horizontal truss units are provided between ordinary walkway slabs of different layers. The truss units are fixed on the mid-span uprights and end uprights.

7. The method for erecting an attached lifting scaffold according to claim 6, characterized in that: Step one also includes preparing diagonal bracing rods, which connect the ordinary walkway slabs and the mid-span uprights.

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