Construction platform and construction method for repairing mixed tower of wind generating set

Abstract

The invention provides a wind generating set mixed tower repairing construction platform and a construction method, and relates to the technical field of fan outer construction platforms, the wind generating set mixed tower repairing construction platform comprises a plurality of split type hanging basket assemblies, the multiple split type hanging basket assemblies are enclosed to form a hoop type construction platform, and the adjacent split type hanging basket assemblies are connected through self-locking type quick release mechanisms; the hoisting traction rope drags the telescopic sliding block to overcome the elastic force of the traction spring to do work in the process of suspending the split type hanging basket assemblies so as to push the positioning pin block to horizontally move and slide towards the side away from the traction spring, and therefore the adjacent split type hanging basket assemblies can be fixedly connected. According to the invention, automatic matching of the positioning pin block and the self-locking limiting groove in the hoisting process is realized by utilizing the self-weight of the split type hanging basket assembly, and the matching is automatically released after the split type hanging basket assembly reaches the ground, and is influenced by the self-weight of the split type hanging basket assembly and personnel standing on the split type hanging basket assembly; and the positioning pin block and the self-locking limiting groove cannot automatically release limiting in the air, so that the safety of aerial operation is greatly ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of construction platforms outside wind turbines, and specifically to a repair construction platform and construction method for a hybrid tower of a wind power generation unit. Background Technique

[0002] In the prior art, a construction operation platform for strengthening the upper structure of a wind turbine with the publication number of "CN216616804U" involves the field of wind turbines. It includes a connecting ring sleeved on a steel structure cylinder or a concrete cylinder, and the inner wall of the connecting ring abuts against the outer wall of the steel structure cylinder or the outer wall of the concrete cylinder. The connecting ring includes a plurality of spliced arc-shaped units; a construction hanging basket is connected to the connecting ring. This device has the effect of facilitating the erection of the operation platform, which is beneficial to improving the reinforcement construction efficiency and reducing the loss of building materials.

[0003] However, there are still relatively obvious defects in the use of the above device: Although the above device simplifies the disassembly and assembly difficulty of the split units to a certain extent, its loading and unloading process still adopts the common bolt fastening connection method. This connection method still requires a large amount of manual operation, and the bolts are prone to falling off during vibration, thereby increasing the risk of aerial operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a repair construction platform and construction method for a hybrid tower of a wind power generation unit to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A repair construction platform for a hybrid tower of a wind power generation unit includes a number of split hanging basket components. The number of split hanging basket components enclose to form a hoop-shaped construction platform, and the hoop-shaped construction platform is hoisted and arranged outside the hybrid tower barrel;

[0007] The split hanging basket component is welded and formed by an inner arc-shaped connecting rod, an outer arc-shaped connecting rod, a number of inner hoop frames, a number of outer protective frames, a number of bottom foot frames, a first side connecting frame, and a second side connecting frame. The inner arc-shaped connecting rod and the outer arc-shaped connecting rod are fixedly connected by a number of support rods. The first side connecting frame and the second side connecting frame are fixedly installed at both ends of the inner arc-shaped connecting rod and the outer arc-shaped connecting rod respectively. A number of inner hoop frames are fixedly installed on the inner arc-shaped connecting rod, and a number of outer protective frames are fixedly installed on the outer arc-shaped connecting rod. The inner hoop frames and the outer protective frames are both perpendicular to the support rods. Both ends of the number of bottom foot frames are fixedly connected to the inner arc-shaped connecting rod and the outer arc-shaped connecting rod respectively;

[0008] The adjacent split hanging basket components are all connected by a self-locking quick-release mechanism. The self-locking quick-release mechanism includes a telescopic slider, a traction spring, a positioning pin block, a hoisting traction rope, and a positioning block. The telescopic slider is arranged in a sliding manner in a chute opened on the first side connecting frame. The telescopic slider is connected to the first side connecting frame by a traction spring. The positioning pin block is fixedly installed on the side of the telescopic slider away from the traction spring. A hoisting traction rope is also connected to the side of the telescopic slider away from the traction spring. During the process of suspending the split hanging basket component, the hoisting traction rope pulls the telescopic slider to do work against the elastic force of the traction spring, thereby pushing the positioning pin block to slide translationally away from the traction spring. The positioning block is fixedly installed on the second side connecting frame, and a self-locking limit groove for the positioning pin block to be embedded is opened on the positioning block. The traction spring pulls the positioning pin block to move away from the self-locking limit groove under the condition of no external force, so that the self-locking quick-release mechanism is disengaged. When the first side connecting frame and the second side connecting frame of adjacent split hanging basket components are matched, the hoisting traction rope pushes the positioning pin block into the self-locking limit groove opened on the positioning block during the suspension process, so that the self-locking quick-release mechanism is matched, and thus the adjacent split hanging basket components are fixedly connected.

[0009] Preferably, hoisting traction ropes are arranged on the inner hoop frames at both ends of the split hanging basket component. The hoisting traction rope close to the second side connecting frame is fixedly connected to the upper end of the inner hoop frame, and the hoisting traction rope close to the first side connecting frame passes through a rope groove opened at the axis of the inner hoop frame and the first side connecting frame and is fixedly connected to the telescopic slider.

[0010] Preferably, a first magnetic attraction positioning block and a second magnetic attraction positioning block are also fixedly installed on the first side connecting frame and the second side connecting frame. The adjacent split hanging basket components are adsorbed and positioned through the magnetic attraction of the first magnetic attraction positioning block and the second magnetic attraction positioning block.

[0011] Preferably, a telescopic sliding rod is also fixedly installed on the side of the telescopic slider close to the traction spring. The telescopic sliding rod is arranged in a sliding manner in a sliding rod hole opened on the side of the first side connecting frame.

[0012] Preferably, positioning pin holes are opened on both the positioning pin block and the positioning block. By wedging a pin into the positioning pin holes of the positioning pin block and the positioning block, the positioning pin block is prevented from slipping out of the self-locking limit groove.

[0013] Preferably, a protective strip is also installed on the outer protective frame of the split hanging basket component.

[0014] Preferably, hoop rings are also sleeved on the upper ends of several inner hoop frames of the split hanging basket component, and a hoop net plate is installed between several hoop rings.

[0015] Preferably, a foot plywood is also laid on the support rod.

[0016] A construction method for repairing a hybrid tower of a wind turbine generator set, using the above-mentioned construction platform for repairing the hybrid tower of a wind turbine generator set, includes the following steps:

[0017] Step 1: Transport a plurality of split basket components to the ground at the bottom of the hybrid tower. Adjacent split basket components are positioned by the magnetic adsorption of the first magnetic positioning block and the second magnetic positioning block, so that the first side connection frame and the second side connection frame of adjacent split basket components cooperate with each other;

[0018] Step 2: Connect the hoisting traction ropes connected to each split basket component to the hoisting rope. The hoisting rope pulls the hoisting traction rope during the hoisting process of the hoisting mechanism. Among them, the hoisting traction rope near the first side connection frame pulls the telescopic slider to translate and slide during the ascending process, and pushes the positioning pin block into the self-locking limit groove opened in the positioning block, so that the self-locking quick-release mechanism cooperates. Finally, the split basket components enclose to form a hoop-type construction platform;

[0019] Step 3: The repair construction personnel enter the hoop-type construction platform and perform repair construction operations on the outer sides of the hybrid tower at different heights during the lifting process of the hoop-type construction platform;

[0020] Step 4: After the construction is completed, the hoop-type construction platform reaches the ground under the suspension of the hoisting mechanism. After several split basket components reach the ground, under the traction of the traction spring, the positioning pin block automatically disengages from the self-locking limit groove opened on the positioning block, thereby releasing the limit connection of the self-locking quick-release mechanism.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present invention utilizes the self-weight of the split basket components to achieve the automatic cooperation between the positioning pin block and the self-locking limit groove during the hoisting process, and automatically releases the cooperation after the split basket components reach the ground. This design greatly improves the connection efficiency between the split basket components, and affected by the self-weight of the split basket components and the personnel standing on them, the positioning pin block and the self-locking limit groove cannot be automatically released from the limit in the air, which greatly ensures the safety of aerial operations. Description of the Drawings

[0023] Figure 1 It is a partial enlarged view of the split basket component and the self-locking quick-release mechanism of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure of the split basket component of the present invention;

[0025] Figure 3Partial sectional enlarged schematic diagram of the split basket assembly and the self-locking quick-release mechanism of the present invention;

[0026] Figure 4 Schematic diagram of the mating state of the positioning pin block and the positioning block of the present invention;

[0027] Figure 5 Top view schematic diagram of the overall structure of the hoop-type construction platform of the present invention.

[0028] In the figure: 1 split basket assembly, 2 hoop-type construction platform, 3 hybrid tower barrel, 4 inner arc connecting rod, 5 outer arc connecting rod, 6 inner hoop frame, 7 outer protective frame, 8 bottom foot frame, 9 first side connecting frame, 10 second side connecting frame, 11 support rod, 12 telescopic slider, 13 traction spring, 14 positioning pin block, 15 hoisting traction rope, 16 positioning block, 17 chute, 18 self-locking limit groove, 19 rope groove, 20 telescopic slide rod, 21 positioning pin hole, 22 protective strip, 23 hoop ring, 24 hoop mesh plate, 25 pedal plywood, 26 first magnetic attraction positioning block, 27 second magnetic attraction positioning block. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0031] Embodiment 1:

[0032] A repair construction platform for the hybrid tower of a wind turbine generator includes a plurality of split basket assemblies 1, and the plurality of split basket assemblies 1 enclose to form a hoop-type construction platform 2, and the hoop-type construction platform 2 is hoisted and arranged on the outer side of the hybrid tower barrel 3;

[0033] The split basket assembly 1 is welded and formed by an inner arc connecting rod 4, an outer arc connecting rod 5, a plurality of inner hoop frames 6, a plurality of outer protective frames 7, a plurality of bottom foot frames 8, a first side connecting frame 9 and a second side connecting frame 10. The inner arc connecting rod 4 and the outer arc connecting rod 5 are fixedly connected by a plurality of support rods 11. The first side connecting frame 9 and the second side connecting frame 10 are fixedly installed at both ends of the inner arc connecting rod 4 and the outer arc connecting rod 5 respectively. A plurality of inner hoop frames 6 are fixedly installed on the inner arc connecting rod 4, and a plurality of outer protective frames 7 are fixedly installed on the outer arc connecting rod 5. The inner hoop frames 6 and the outer protective frames 7 are both perpendicular to the support rod 11. Both ends of the plurality of bottom foot frames 8 are fixedly connected to the inner arc connecting rod 4 and the outer arc connecting rod 5 respectively;

[0034] The adjacent split hanging basket components 1 are all connected by a self-locking quick-release mechanism. The self-locking quick-release mechanism includes a telescopic slider 12, a traction spring 13, a positioning pin block 14, a hoisting traction rope 15 and a positioning block 16. The telescopic slider 12 is arranged in a sliding manner in a chute 17 opened on a first side connecting frame 9. The telescopic slider 12 is connected to the first side connecting frame 9 by a traction spring 13. The positioning pin block 14 is fixedly installed on the side of the telescopic slider 12 away from the traction spring 13. A hoisting traction rope 15 is also connected to the side of the telescopic slider 12 away from the traction spring 13. During the process of suspending the split hanging basket component 1, the hoisting traction rope 15 pulls the telescopic slider 12 to do work against the elastic force of the traction spring 13, thereby pushing the positioning pin block 14 to slide translationally away from the traction spring 13. The positioning block 16 is fixedly installed on a second side connecting frame 10. A self-locking limit groove 18 for the positioning pin block 14 to be inserted into is opened on the positioning block 16. The traction spring 13 pulls the positioning pin block 14 to move away from the self-locking limit groove 18 under the action of no external force, so that the self-locking quick-release mechanism is disengaged from the cooperation. When the first side connecting frame 9 and the second side connecting frame 10 of the adjacent split hanging basket components 1 are in cooperation, the hoisting traction rope 15 pushes the positioning pin block 14 into the self-locking limit groove 18 opened on the positioning block 16 during the suspension process, so that the self-locking quick-release mechanism is in cooperation, thereby enabling the adjacent split hanging basket components 1 to be fixedly connected.

[0035] In this embodiment, the split hanging basket assembly 1 is welded and formed by an inner arc connecting rod 4, an outer arc connecting rod 5, a plurality of inner hoop frames 6, a plurality of outer protection frames 7, a plurality of bottom leg frames 8, a first side connecting frame 9 and a second side connecting frame 10 which are conventionally arranged. In order to quickly install a plurality of split hanging basket assemblies 1, adjacent split hanging basket assemblies 1 are connected by a self-locking quick-release mechanism. The self-locking quick-release mechanism includes a telescopic slider 12, a traction spring 13, a positioning pin block 14, a hoisting traction rope 15 and a positioning block 16. Among them, the telescopic slider 12, the traction spring 13 and the positioning pin block 14 are all installed on one side of the first side connecting frame 9, and the positioning block 16 is installed on one side of the second side connecting frame 10. During the combination of adjacent split hanging basket assemblies 1, the first side connecting frame 9 and the second side connecting frame 10 of adjacent split hanging basket assemblies 1 cooperate, so that the components of the self-locking quick-release mechanism approach each other. Among them, the traction spring 13 pulls the positioning pin block 14 to move away from the self-locking limit groove 18 under the action of no external force, so that the self-locking quick-release mechanism is disengaged from the cooperation. At the same time, the telescopic slider 12 is also fixedly connected to the hoisting traction rope 15. When the hoisting traction rope 15 suspends the split hanging basket assembly 1 off the ground, the split hanging basket assembly 1 makes the telescopic slider 12 be pulled and slide by the hoisting traction rope 15 under its own weight, and pushes the positioning pin block 14 into the self-locking limit groove 18 opened in the positioning block 16, so that the self-locking quick-release mechanism is engaged, thus completing the quick assembly of adjacent split hanging basket assemblies 1. The significance of this design is that this assembly process is mainly automatically completed by the self-weight of the split hanging basket assembly 1, greatly reducing the assembly burden of the staff. And after the self-locking quick-release mechanism is engaged, it is more tightly connected under the self-weight of the split hanging basket assembly 1 and the construction personnel on it, and can effectively prevent disengagement in the air, thus greatly ensuring the life safety of the construction personnel.

[0036] Embodiment Two:

[0037] Hoisting traction ropes 15 are arranged on the inner hoop frames 6 at both ends of the split hanging basket assembly 1. The hoisting traction rope 15 close to the second side connecting frame 10 is fixedly connected to the upper end of the inner hoop frame 6, and the hoisting traction rope 15 close to the first side connecting frame 9 passes through the rope groove 19 opened in the axis of the inner hoop frame 6 and the first side connecting frame 9 and is fixedly connected to the telescopic slider 12.

[0038] In this embodiment, the installation position of the hoisting traction rope 15 is further optimized. By opening a rope groove 19 on the inner hoop frame 6 on one side of the first side connecting frame 9 and passing through the rope groove 19 opened in the first side connecting frame 9, finally the hoisting traction rope 15 is connected to the telescopic slider 12. The significance of this design is to optimize the arrangement of the hoisting traction rope 15 and ensure the stability of the connection between the hoisting traction rope 15 and the telescopic slider 12.

[0039] Embodiment Three:

[0040] A first magnetic attraction positioning block 26 and a second magnetic attraction positioning block 27 are also fixedly installed on the first side connection frame 9 and the second side connection frame 10, and the adjacent split basket assemblies 1 are adsorbed and positioned through the magnetic attraction of the first magnetic attraction positioning block 26 and the second magnetic attraction positioning block 27.

[0041] In this embodiment, further through the settings of the first magnetic attraction positioning block 26 and the second magnetic attraction positioning block 27, magnetic adsorption positioning can be quickly performed in the early stage of the cooperation of the split basket assemblies 1, thereby reducing the assembly difficulty of the assembly personnel.

[0042] Embodiment 4:

[0043] A telescopic slide rod 20 is also fixedly installed on one side of the telescopic slider 12 close to the traction spring 13, and the telescopic slide rod 20 is translationally slidably arranged in a slide rod hole opened on the side of the first side connection frame 9.

[0044] In this embodiment, through the setting of the telescopic slide rod 20, the telescopic stability of the telescopic slider 12 can be further ensured, so as to ensure that the positioning pin block 14 can accurately enter the self-locking limit groove 18 opened in the positioning block 16.

[0045] Embodiment 5:

[0046] Positioning pin holes 21 are opened on both the positioning pin block 14 and the positioning block 16, and by wedging a pin into the positioning pin holes 21 of the positioning pin block 14 and the positioning block 16, the positioning pin block 14 is prevented from slipping out of the self-locking limit groove 18.

[0047] In this embodiment, in order to further ensure the connection stability between the positioning block 16 and the positioning pin block 14, corresponding positioning pin holes 21 are opened on the two of them, and by wedging a pin, it is effectively prevented from slipping in the air, further improving the safety of aerial operations.

[0048] Embodiment 6:

[0049] A protective strip 22 is also installed on the outer protective frame 7 of the split basket assembly 1.

[0050] Hoop rings 23 are sleeved on the upper ends of several inner hoop frames 6 of the split basket assembly 1, and a hoop net plate 24 is installed between several hoop rings 23.

[0051] A foot plywood 25 is also laid on the support rod 11.

[0052] In this embodiment, further through the settings of the protective strip 22, the hoop net plate 24 and the foot plywood 25, the safety of the operators on it is ensured, and the risk of falling from a height is prevented.

[0053] A construction method for repairing a hybrid tower of a wind turbine generator set, using the above-mentioned construction platform for repairing the hybrid tower of a wind turbine generator set, includes the following steps:

[0054] Step 1: Carry several split basket assemblies 1 to the ground at the bottom of the hybrid tower 3. The adjacent split basket assemblies 1 are positioned by the magnetic adsorption of the first magnetic adsorption positioning block 26 and the second magnetic adsorption positioning block 27, so that the first side connection frames 9 and the second side connection frames 10 of the adjacent split basket assemblies 1 cooperate with each other;

[0055] Step 2: Connect the hoisting traction ropes 15 connected to each split basket assembly 1 with the hoisting ropes. The hoisting ropes traction the hoisting traction ropes 15 during the hoisting process of the hoisting mechanism. Among them, the hoisting traction rope 15 near the first side connection frame 9 translates and slides during the rising process, and pushes the positioning pin block 14 into the self-locking limit groove 18 opened in the positioning block 16, so that the self-locking quick-release mechanism cooperates. Finally, the split basket assemblies 1 enclose to form a hoop-shaped construction platform 2;

[0056] Step 3: The repair construction personnel enter the hoop-shaped construction platform 2 and perform repair construction operations on the outer sides of the hybrid tower 3 at different heights during the lifting process of the hoop-shaped construction platform 2;

[0057] Step 4: After the construction is completed, the hoop-shaped construction platform 2 reaches the ground under the suspension of the hoisting mechanism. After several split basket assemblies 1 reach the ground, under the traction of the traction spring 13, the positioning pin block 14 automatically disengages from the self-locking limit groove 18 opened on the positioning block 16, thus releasing the limit connection of the self-locking quick-release mechanism.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine generator mixed tower repair construction platform, comprising a plurality of split hanging basket assemblies, characterized in that: A plurality of the split hanging basket assemblies are enclosed to form a hoop-type construction platform, and the hoop-type construction platform is hoisted and arranged on the outside of the mixing tower; The split hanging basket assembly is formed by welding an inner arc connecting rod, an outer arc connecting rod, a plurality of inner hoop frames, a plurality of outer protection frames, a plurality of bottom tripods, a first side connecting frame and a second side connecting frame. The inner arc connecting rod and the outer arc connecting rod are fixedly connected by a plurality of support rods. The first side connecting frame and the second side connecting frame are fixedly installed at both ends of the inner arc connecting rod and the outer arc connecting rod, respectively. The plurality of inner hoop frames are fixedly installed on the inner arc connecting rod, and the plurality of outer protection frames are fixedly installed on the outer arc connecting rod. The inner hoop frame and the outer protection frame are both arranged perpendicular to the support rod, and the two ends of the plurality of bottom tripods are fixedly connected to the inner arc connecting rod and the outer arc connecting rod, respectively. The adjacent split hanging basket assemblies are connected by a self-locking quick-release mechanism, and the self-locking quick-release mechanism includes a telescopic slider, a traction spring, a positioning pin block, a hoisting traction rope and a positioning block. The telescopic slider is arranged in a sliding groove provided in the first side connecting frame for translation and sliding. The telescopic slider is connected to the first side connecting frame through a traction spring. The positioning pin block is fixedly installed on the side of the telescopic slider away from the traction spring. The side of the telescopic slider away from the traction spring is also connected to a hoisting traction rope. The hoisting traction rope pulls the telescopic slider to overcome the elastic force of the traction spring to do work during the process of suspending the split hanging basket assembly. The positioning pin block is pushed to slide horizontally to the side away from the traction spring, and the positioning block is fixedly installed on the second side connecting frame, and the positioning block is provided with a self-locking limit groove for the positioning pin block to be embedded. The traction spring pulls the positioning pin block to move to the side away from the self-locking limit groove without external force, thereby causing the self-locking quick-release mechanism to disengage. When the first side connecting frame and the second side connecting frame of adjacent split hanging basket assemblies cooperate, the lifting traction rope pushes the positioning pin block into the self-locking limit groove provided in the positioning block during the suspension process, thereby causing the self-locking quick-release mechanism to cooperate, thereby fixing the adjacent split hanging basket assemblies in connection.

2. A wind turbine generator mixed tower repair construction platform according to claim 1, characterized in that: The inner hoop frames at both ends of the split hanging basket assembly are provided with lifting and traction ropes. The lifting and traction rope close to the second side connecting frame is fixedly connected to the upper end of the inner hoop frame, and the lifting and traction rope close to the first side connecting frame passes through the rope grooves opened at the axis of the inner hoop frame and the first side connecting frame and is fixedly connected to the telescopic slider.

3. A wind turbine generator mixed tower repair construction platform according to claim 1 or 2, characterized in that: The first side connecting frame and the second side connecting frame are also fixedly mounted with a first magnetic positioning block and a second magnetic positioning block, and the adjacent split hanging basket assemblies are adsorbed and positioned through the magnetic adsorption of the first magnetic positioning block and the second magnetic positioning block.

4. A wind turbine generator mixed tower repair construction platform according to claim 3, characterized in that: A telescopic slide bar is fixedly mounted on one side of the telescopic slide block close to the traction spring, and the telescopic slide bar is arranged to slide in a slide bar hole provided on the side of the first side connecting frame.

5. A wind turbine generator mixed tower repair construction platform according to claim 4, characterized in that: The positioning pin block and the positioning block are both provided with positioning pin holes, and the positioning pin block is prevented from slipping out of the self-locking limit groove by wedging the pin into the positioning pin holes of the positioning pin block and the positioning block.

6. A wind turbine generator mixed tower repair construction platform according to claim 5, characterized in that: A protective barrier strip is also installed on the outer protective frame of the split hanging basket assembly.

7. A wind turbine generator mixed tower repair construction platform according to claim 6, characterized in that: The upper ends of the several inner hoop frames of the split hanging basket assembly are also sleeved with hoop rings, and hoop mesh plates are installed between the several hoop rings.

8. A wind turbine generator mixed tower repair construction platform according to claim 6, characterized in that: The support rod is also paved with a footrest plywood.

9. A method for repairing a wind turbine generator set mixed tower, using the wind turbine generator set mixed tower repair construction platform according to any one of claims 3 to 8, characterized in that: The following steps are involved: Step 1: transporting a plurality of split hanging basket assemblies to the ground at the bottom of the mixing tower, and positioning the adjacent split hanging basket assemblies by magnetic adsorption of the first magnetic adsorption positioning block and the second magnetic adsorption positioning block, so that the first side connecting frames and the second side connecting frames of the adjacent split hanging basket assemblies cooperate with each other; Step 2: Connect the lifting traction ropes connected to each split hanging basket assembly with the lifting rope, and the lifting rope pulls the lifting traction rope during the hoisting process of the lifting mechanism, wherein the lifting traction rope close to the first side connecting frame pulls the telescopic slider to slide in translation during the rising process, and pushes the positioning pin block into the self-locking limit groove provided in the positioning block so that the self-locking quick-release mechanism cooperates, and finally the split hanging basket assembly is enclosed to form a hoop-type construction platform; Step 3: The repair construction personnel enter the hoop type construction platform and perform repair construction operations on the outer sides of the mixing towers at different heights during the lifting and lowering process of the hoop type construction platform; Step 4: After the construction is completed, the hoop-type construction platform reaches the ground under the suspension of the lifting mechanism. After several split hanging basket assemblies reach the ground, under the traction of the traction spring, the positioning pin block automatically disengages from the self-locking limit groove on the positioning block, thereby releasing the limit connection of the self-locking quick-release mechanism.

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