An assembled telescopic tower crane man access platform device

Abstract

The utility model discloses an assembly type telescopic tower crane man access platform device, including nested keel, cross bracing keel and antiskid steel sheet, the nested keel includes first square tube and second square tube, and the second square tube is inserted to the first square tube, is used for telescopic adjustment nested keel's overall length and is fixed through high -strength bolt connection, and a plurality of cross bracing keels are connected between two nested keels, and the cross bracing keel is flush with the top surface of the nested keel, and the antiskid steel sheet is laid on the nested keel and the cross bracing keel. The utility model solves the problem that traditional tower crane man access builds low efficiency, poor adaptability, insufficient safety, has the advantages of convenient assembly, telescopic adjustable, high reusability, safe and reliable, can be adapted to different models tower crane and construction working condition, effectively promotes construction safety and operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a prefabricated telescopic tower crane access platform device. Background Technology

[0002] In construction engineering, tower cranes serve as core vertical transportation equipment. Operators must use access platforms to travel between the ground and the crane's control room. The safety, applicability, and convenience of these platforms directly impact construction efficiency and personnel safety. Currently, tower crane access platforms suffer from the following technical challenges: 1. Poor adaptability: The length and angle cannot be adjusted according to different tower crane section diameters, attachment frame spacing, and construction site space, requiring the customization of multiple platforms, increasing equipment costs and storage difficulties; 2. Low installation efficiency: Existing platform operation processes are cumbersome, time-consuming, and labor-intensive, affecting construction progress; 3. Insufficient safety: Under high-altitude wind loads or the impact of personnel movement, swaying and displacement are likely, posing a fall risk; 4. Limited versatility: Traditional platforms have a single connection method to the tower crane, incompatible with the attachment frame structures of different tower crane brands, resulting in low cross-project reuse and resource waste.

[0003] Therefore, there is an urgent need for a tower crane access platform device that is flexible, adjustable, quick to assemble and install, safe, reliable and versatile, in order to solve the shortcomings of existing technologies in terms of adaptability, efficiency and safety, and meet the needs of modern construction projects for efficient and safe construction. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a prefabricated telescopic tower crane access platform device, which solves the problems of low construction efficiency, poor adaptability and insufficient safety of traditional tower crane access platforms. It has the characteristics of convenient assembly, adjustable telescopicity, high reusability and safety and reliability. It can be adapted to different models of tower cranes and construction conditions, effectively improving construction safety and work efficiency, thereby overcoming the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a prefabricated telescopic tower crane access platform device, including nested keel, cross bracing keel and anti-slip steel plate; The nested keel includes a first square tube and a second square tube. The second square tube is inserted into the first square tube to adjust the overall length of the nested keel. The first square tube and the second square tube have bolt holes at equal intervals at corresponding positions, and are connected and fixed by inserting high-strength bolts. Two nested keels are set in parallel. The end of the first square tube is connected to the tower crane body, and the end of the second square tube is connected to the main structure. Multiple horizontal bracing keels are connected between the two nested keels. The top surfaces of the horizontal bracing keels and the nested keels are flush. Anti-slip steel plates are laid on the nested keels and the horizontal bracing keels.

[0006] As an improvement of this utility model, the cross brace includes a third tube and ear plates. The ear plates are welded to both ends of the third tube and have bolt holes. The cross brace and the nested keel are connected by high-strength bolts.

[0007] Furthermore, the top surface of the nested keel has equally spaced embedded slots, and the bottom surface of the anti-slip steel plate has corresponding buckles that match the shape of the embedded slots. The buckles are embedded in the embedded slots to limit the anti-slip steel plate.

[0008] Furthermore, a protective railing is installed above the nested keel via a connector. The height of the protective railing is ≥1.2m, and a toe board is provided at the bottom with a height of not less than 180mm.

[0009] Furthermore, a protective door is installed between the two guardrails, and the protective door is equipped with a lock.

[0010] Furthermore, lifting rings are welded to the sides of the nested keel for the overall hoisting of the passage platform.

[0011] Furthermore, the end of the first square tube of the nested keel is welded with a steel groove, which is a rectangular groove with an opening facing downwards. It is clamped onto the cross brace of the tower crane body and fixed by high-strength bolts.

[0012] With this design, the present invention has at least the following advantages.

[0013] 1. This utility model has high safety, adopts a modular assembly design, and the components are firmly connected, which can effectively avoid the swaying risk of traditional passages. At the same time, it is equipped with safety components such as guardrails and anti-slip steel plates to meet the protection standards for high-altitude operations.

[0014] 2. The nested keel of this utility model has flexible extensibility, and the channel length can be flexibly adjusted according to the tower crane height and working radius to adapt to different working conditions. It does not require frequent disassembly or replacement, thus improving work efficiency.

[0015] 3. The components of this utility model are connected by high-strength bolts. The components are produced in a standardized manner, are lightweight and have a simple splicing structure. No complicated welding is required on site. They can be quickly assembled using only bolts and other connecting parts, which shortens the construction time.

[0016] 4. The entire device of this utility model is made of durable steel, with a stable structure that is not easily damaged. After disassembly, it can be transported intact to other projects for reuse, resulting in a high reuse rate and reducing material waste and construction costs.

[0017] 5. This utility model has a clear force distribution, simple structure, is lightweight and flexible, economical and practical. It can be adapted to tower crane bodies of different models and specifications, is not limited by the tower crane structure, and can cope with changes in the construction environment within a certain range, such as slight tower body tilt adjustment. Attached Figure Description

[0018] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the planar structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the elevation structure of this utility model.

[0021] Figure 3 This is a schematic diagram of a nested keel structure.

[0022] Figure 4 This is a structural diagram of the horizontal bracing keel.

[0023] Figure 5 A schematic diagram of the structure of the protective steel plate.

[0024] Figure 6 This is a structural diagram of a guardrail.

[0025] Figure 7 This is a front view structural diagram of the connector.

[0026] Figure 8 This is a side view of the connector.

[0027] Figure 9 This is a structural diagram of a protective door.

[0028] Explanation of reference numerals in the attached drawings: 1. Guardrail; 1-1. Toe board; 2. Nested keel; 2-1. First square tube; 2-2. Second square tube; 3. Embedded slot; 4. Bolt hole; 5. High-strength bolt; 6. Horizontal bracing keel; 6-1. Third square tube; 6-2. Ear plate; 7. Anti-slip steel plate; 7-1. Buckle; 8. Connector; 9. Steel groove; 10. Lifting ring; 11. Protective door; 11-1. Door lock; 12. Tower crane body; 13. Main structure. Detailed Implementation

[0029] Please see Figures 1 to 9 This utility model provides a prefabricated telescopic tower crane access platform device, including a nested keel 2, a cross bracing keel 6, an anti-slip steel plate 7, a guardrail 1, and a protective door 11.

[0030] The nested keel 2 includes a first square tube 2-1 and a second square tube 2-2.

[0031] The inner dimension of the first square tube 2-1 is larger than the outer dimension of the second square tube 2-2. The second square tube 2-2 is inserted into the first square tube 2-1 to adjust the overall length of the nested keel.

[0032] The first square tube 2-1 and the second square tube 2-2 have bolt holes 4 at equal intervals at corresponding positions, which are used to connect and fix the first square tube 2-1 and the second square tube 2-2 by inserting high-strength bolts 5.

[0033] The cross bracing keel 6 includes a third tube 6-1 and ear plates 6-2. The ear plates 6-2 are welded and fixed to both ends of the third tube 6-1 and also have bolt holes 4.

[0034] Two nested keels 2 are set in parallel, and multiple horizontal bracing keels 6 are connected between the two nested keels 2. The horizontal bracing keels 6 are flush with the top surface of the nested keels 2.

[0035] It should be noted that the bolt holes 4 on the first square tube 2-1, the second square tube 2-2, and the ear plate 6-2 are positioned correspondingly. This design allows the cross bracing keel 6 to be connected to the first square tube 2-1 and the second square tube 2-2 separately, or to be connected to both the first square tube 2-1 and the second square tube 2-2 together (i.e., the overlapping section of the first square tube 2-1 and the second square tube 2-2, with high-strength bolts 5 passing through the ear plate 6-2, the first square tube 2-1, and the second square tube 2-2, connecting and fixing the three together), so as to ensure that the cross bracing keel 6 can be arranged at equal intervals along the length direction of the nested keel 2.

[0036] The top surface of the nested keel 2 has equally spaced embedded slots 3, and the bottom surface of the anti-slip steel plate 7 has corresponding buckles 7-1 that match the shape of the embedded slots 3.

[0037] The anti-slip steel plate 7 is laid on the keel frame composed of the nested keel 2 and the cross bracing keel 6. During the laying, the buckle 7-1 is precisely embedded in the inner groove 3 to limit the position of the anti-slip steel plate 7.

[0038] The guardrail 1 is installed above two nested keels 2 via connectors 8. The height of the guardrail 1 is ≥1.2m, and a toe board 1-1 is provided at the bottom. The height of the toe board 1-1 is not less than 180mm.

[0039] The lateral cross-section of the connector 8 is stepped. The first facade 8-1 is attached to the outer wall of the nested keel 2 and fixed by high-strength bolts 5. The second facade 8-2 is connected to the guardrail 1 by high-strength bolts 5.

[0040] The connector 8 is located at the junction of the two guardrails 1, and simultaneously fixes the two adjacent guardrails. The two guardrails 1 are also connected by high-strength bolts 5.

[0041] The protective door 11 is installed between the two protective railings 1 on both sides, and the protective door 11 is equipped with a door lock 11-1.

[0042] The nested keel 2 is also welded with lifting rings 10 on its sides for overall hoisting of the passage platform.

[0043] The nested keel 2 has a steel groove 9 welded to the end of the first square tube 2-1. The steel groove 9 is a rectangular groove with an opening facing downwards. During installation, it is used to be clamped onto the cross brace of the tower crane body 12 and fixed by high-strength bolts.

[0044] The overall construction steps for installing this utility model are as follows.

[0045] Step 1: Determine the length of the nested keel 2 based on the distance between the tower crane body 12 and the main structure 13. After adjustment, fix it with high-strength bolts 5 so that the length of the nested keel 2 is more than 1.0 meter greater than the net distance between the tower crane body 12 and the main structure 13. Then install the cross bracing keel 6 between the two sets of nested keels 2 to form the keel frame.

[0046] Step 2: Lay anti-slip steel plates 7 on the keel frame. The anti-slip steel plates 7 are connected to the embedded slots 3 on the nested keel 2 by buckles 7-1.

[0047] Step 3: Use high-strength bolts 5 to install connectors 8 on both sides of the passage platform. Connect one side of connector 8 is connected to the nested keel 2, and the other side is used to install guardrails 1. The guardrails 1 are connected with each other using high-strength bolts 5 to ensure that the protection on both sides of the passage is in place.

[0048] Step 4: Install a protective door 11 in the middle of the passage platform. Install a door lock 11-1 on the protective door 11. The key shall be kept by a professional.

[0049] Step 5: After the access platform is assembled on the ground, use the tower crane hook wire rope to connect with ring 10 to hoist the access platform to the designated position. Then, secure the end steel groove 9 to the cross brace of the tower crane standard section and use high-strength bolts 5 to connect and fix it to ensure the safety of the platform.

[0050] As the construction progress changes, simply repeat step five on the same building. If it needs to be moved to the next building, repeat steps one through five, readjust the length, and complete the assembly and hoisting.

[0051] This invention solves the problems of low efficiency, poor adaptability, and insufficient safety in the construction of traditional tower crane access passages. It has the advantages of convenient assembly, adjustable extension and retraction, high reusability, and safety and reliability. It can be adapted to different models of tower cranes and construction conditions, effectively improving construction safety and work efficiency.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A prefabricated telescopic tower crane access platform device, characterized in that, Includes nested keel, cross bracing keel and anti-slip steel plate; The nested keel includes a first square tube and a second square tube. The second square tube is inserted into the first square tube to adjust the overall length of the nested keel. The first square tube and the second square tube have bolt holes at equal intervals at corresponding positions, and are connected and fixed by inserting high-strength bolts. Two nested keels are set in parallel. The end of the first square tube is connected to the tower crane body, and the end of the second square tube is connected to the main structure. Multiple horizontal bracing keels are connected between the two nested keels. The top surfaces of the horizontal bracing keels and the nested keels are flush. Anti-slip steel plates are laid on the nested keels and the horizontal bracing keels.

2. The prefabricated telescopic tower crane access platform device according to claim 1, characterized in that, The cross bracing keel includes a third-party tube and ear plates. The ear plates are welded to both ends of the third-party tube and have bolt holes. The cross bracing keel and the nested keel are connected by high-strength bolts.

3. The prefabricated telescopic tower crane access platform device according to claim 1, characterized in that, The top surface of the nested keel has equally spaced embedded slots, and the bottom surface of the anti-slip steel plate has corresponding buckles that match the shape of the embedded slots. The buckles are embedded in the embedded slots to limit the anti-slip steel plate.

4. The prefabricated telescopic tower crane access platform device according to claim 1, characterized in that, A protective railing is installed above the nested keel via a connector. The height of the protective railing is ≥1.2m, and a toe board is provided at the bottom with a height of not less than 180mm.

5. The prefabricated telescopic tower crane access platform device according to claim 4, characterized in that, A protective door is installed between the guardrails on both sides, and the door is equipped with a lock.

6. The prefabricated telescopic tower crane access platform device according to claim 1, characterized in that, The nested keel is welded with lifting rings on its sides for the overall hoisting of the passage platform.

7. The prefabricated telescopic tower crane access platform device according to claim 1, characterized in that, The first square tube of the nested keel is welded with a steel groove at its end. The steel groove is a rectangular groove with an opening facing downwards. It is stuck on the cross brace of the tower crane body and fixed by high-strength bolts.

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