Lifting type sinking circular shaft bottom sealing platform

Abstract

The utility model discloses a lifting type sinking circular shaft bottom sealing platform which comprises main trusses and connecting trusses, an operation platform is arranged on the top of the bottom sealing platform, and the operation platform comprises a central operation platform which is installed on the connecting trusses which are combined and connected in a crossed mode. The auxiliary operation platforms are connected between every two adjacent main trusses; the multiple sets of edge protectors are installed on the central operation platform and the auxiliary operation platform correspondingly; and the plurality of lifting steel strands are connected between the corresponding main trusses and the lifting platform corresponding to the top of the top ring beam. The bottom sealing platform has the advantages that the bottom sealing platform can realize integral hoisting and hoisting operation by adopting a quick-assembly and quick-disassembly type mounting structure, can be directly mounted on an embedded part at the top of a vertical shaft, is simple and convenient to arrange and small in construction interference, adopts a truss type structure, and is high in rigidity and high in spanning capacity. The steel strand is connected to the midspan position of the platform, the span of the platform is reduced, and the downwarping of the platform is controllable.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft construction, in particular to a lifting type sinking circular shaft bottom sealing platform. Background Art

[0002] The top ring beam of the lifting type sinking shaft is usually equipped with a tunnel boring machine lifting system and a shaft lifting system, which results in a narrow space above the top ring beam, making it difficult to arrange a conventional bottom sealing construction platform. In particular, if the bottom sealing platform of a circular shaft is built in a conventional way, it will lead to waste of materials and a long installation and removal period. Therefore, a bottom sealing platform that can adapt to a narrow installation space is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting type sinking circular shaft bottom sealing platform in view of the deficiencies of the above-mentioned prior art. The bottom sealing platform can realize the overall lifting and lifting operations by adopting a quick-install and quick-disassemble installation structure, and can be directly installed on the embedded parts at the top of the shaft. The layout is simple and the construction interference is small.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A lifting type sinking circular shaft bottom sealing platform, wherein the bottom sealing platform comprises:

[0006] A plurality of main trusses are respectively connected to corresponding embedded parts at the top of the shaft, are evenly distributed around the circumference of the top of the shaft, and are located within the horizontal range of the top ring beam at the top of the shaft;

[0007] A plurality of connecting trusses are combined, cross-connected and installed in the installation space formed by the plurality of main trusses; wherein

[0008] An operating platform is arranged on the top of the bottom cover platform, and the operating platform comprises:

[0009] A central operating platform installed on the plurality of said connecting trusses after combined cross-connection;

[0010] A plurality of auxiliary operation platforms connected between each adjacent main truss;

[0011] A plurality of sets of edge protections are respectively installed on the central operating platform and the auxiliary operating platform; and

[0012] A plurality of lifting steel strands are connected between the corresponding main trusses and the corresponding lifting platforms at the top of the top ring beam.

[0013] Optionally, the main truss and the connecting truss have the same structure and include an upper chord, a lower chord and a plurality of web members connected between the upper chord and the lower chord.

[0014] Optionally, the web member is obliquely connected between the upper chord member and the lower chord member, and the same-side sections of two adjacent web members are close to and in contact with each other.

[0015] Optionally, an installation angle of 60° is formed between two adjacent webs.

[0016] Optionally, the two alternate webs are parallel to each other.

[0017] Optionally, the number of the main trusses is five, the number of the embedded parts at the top of the shaft is five, each of the main trusses is connected to the corresponding embedded parts, and a regular pentagonal structure distribution is formed in the circumferential direction of the top of the shaft.

[0018] Optionally, each of the main trusses is connected to the other four main trusses by a connecting truss, and a plurality of connecting trusses are combined and cross-connected to form a structure with an outer circle of a regular pentagon and an inner circle of a regular five-pointed star.

[0019] Optionally, the outline of the central operating platform is consistent with the regular pentagonal structure of the multiple connecting trusses after combined cross-connection.

[0020] Optionally, the number of the auxiliary operation platforms is five and they are connected end to end to form a regular pentagonal structure.

[0021] Optionally, the edge protections are arranged in pairs on both sides of the central operating platform and the secondary operating platform to form walkways on the surfaces of the central operating platform and the secondary operating platform.

[0022] The advantages of the utility model are:

[0023] The bottom cover platform of the utility model can realize the overall lifting and lifting operation by adopting a quick-install and quick-disassemble installation structure, and can be directly installed on the embedded parts at the top of the shaft, which is simple to arrange and has little construction interference. The bottom cover platform adopts a truss structure with high rigidity and strong spanning capacity. The steel strand is connected to the mid-span position of the platform, which reduces the platform span and makes the platform deflection controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the lifting type sinking circular vertical shaft bottom sealing platform of the utility model when the operating platform is not installed;

[0025] Figure 2 It is a structural schematic diagram of the lifting type sinking circular vertical shaft bottom sealing platform of the utility model after the operating platform is installed;

[0026] Figure 3 It is a side view of the bottom sealing platform of the lifting type sinking circular vertical shaft of the utility model;

[0027] Figure 4It is a structural schematic diagram of the main truss and the connecting truss in the lifting type sinking circular shaft bottom sealing platform of the utility model. DETAILED DESCRIPTION

[0028] The marks in the figure are: 1. main truss, 2. connecting truss, 3. central operating platform, 4. auxiliary operating platform, 5. edge protection, 6. steel strand, 7. conduit, 10. vertical shaft, 11. upper chord, 12. lower chord, 13. web member, 20. embedded parts, 30. top ring beam, 40. lifting platform.

[0029] Example: See Figure 1 , Figure 2 and Figure 3 As shown, a lifting type sinking circular shaft bottom sealing platform of an embodiment is shown, wherein the bottom sealing platform includes a plurality of main trusses 1, which are respectively connected to the corresponding embedded parts 20 at the top of the shaft 10, and are evenly distributed in the circumferential direction around the top of the shaft 10, and are located within the horizontal range of the top ring beam 30 at the top of the shaft 10; a plurality of connecting trusses 2 are combined and cross-connected and installed in the installation space jointly formed by the plurality of main trusses 1; wherein an operating platform is arranged on the top of the bottom sealing platform, and the operating platform includes: a central operating platform 3, which is installed on the plurality of connecting trusses 2 after the combination and cross-connection; a plurality of auxiliary operating platforms 4, which are connected between each adjacent main trusses 1; a plurality of sets of edge protections 5, which are respectively installed to the central operating platform 3 and the auxiliary operating platform 4; and a plurality of lifting steel strands 6, which are connected between the corresponding main trusses 1 and the lifting platform 40 corresponding to the top of the top ring beam 30.

[0030] In this embodiment, Figure 4 As shown, the main truss 1 and the connecting truss 2 have the same structure and include an upper chord 11, a lower chord 12 and a plurality of web members 13 connected between the upper chord 11 and the lower chord 12. The web members 13 are obliquely connected between the upper chord 11 and the lower chord 12. The same side sections of two adjacent web members 13 are close to and in contact with each other. An installation angle of 60° is formed between two adjacent web members 13, and the alternating web members 13 are parallel to each other.

[0031] In this embodiment, there are five main trusses 1 and five embedded parts 20 at the top of the shaft 10 . Each main truss 1 is connected to a corresponding embedded part 20 , and forms a regular pentagonal structure distribution in the circumferential direction of the top of the shaft 10 .

[0032] In this embodiment, each main truss 1 is connected to the other four main trusses 1 by a connecting truss 2, and a plurality of connecting trusses 2 are combined and cross-connected to form a structure with an outer circle of a regular pentagon and an inner circle of a regular five-pointed star.

[0033] In this embodiment, the outline of the central operating platform 3 is consistent with the multiple connecting trusses 2 after combined cross-connection and presents a regular pentagonal structure.

[0034] In this embodiment, the number of auxiliary operation platforms 4 is five and they are connected end to end to form a regular pentagonal structure.

[0035] In this embodiment, the edge protections 5 are arranged in pairs on both sides of the central operating platform 3 and the auxiliary operating platform 4 to form walkways (not shown) on the surfaces of the central operating platform 3 and the auxiliary operating platform 4 .

[0036] The characteristics and functions of the present invention can be further understood through the following description.

[0037] The lifting type sinking circular shaft bottom sealing platform of this embodiment is mainly used to solve the problems of traditional bottom sealing platforms, especially the bottom sealing platforms of circular shafts, which are troublesome and complicated to build, and will also lead to waste of materials and long installation and removal period.

[0038] Therefore, the bottom sealing platform of this embodiment adopts a quick-install and quick-disassemble structure. The bottom sealing platform as a whole can be pre-assembled in the factory or outside, and then hoisted with the assistance of a lifting platform 40. There are embedded parts 20 at multiple specific positions on the top of the shaft 10. The assembled bottom sealing platform can be directly docked with the embedded parts 20 for subsequent operations. When all the projects are completed, the bottom sealing platform and the embedded parts 20 can be directly removed and lifted away. The project is to install a conduit 7 in the operating platform, and perform bottom sealing operations on the bottom of the shaft through the conduit 7. The conduit 7 can be installed in the walkway of the central operating platform 3 and the auxiliary operating platform 4, and the edge protection 5 ensures the safety of construction.

[0039] In summary, the bottom cover platform of the utility model can realize the overall lifting and lifting operation by adopting a quick-install and quick-disassemble installation structure, and can be directly installed on the embedded parts at the top of the shaft, with simple layout and small construction interference. The bottom cover platform adopts a truss structure with high rigidity and strong spanning capacity. The steel strand is connected to the mid-span position of the platform, which reduces the platform span and makes the platform deflection controllable.

[0040] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting type sinking circular shaft bottom sealing platform, characterized in that: The back cover platform includes: A plurality of main trusses are respectively connected to corresponding embedded parts at the top of the shaft, are evenly distributed around the circumference of the top of the shaft, and are located within the horizontal range of the top ring beam at the top of the shaft; A plurality of connecting trusses are combined, cross-connected and installed in the installation space formed by the plurality of main trusses; wherein An operating platform is arranged on the top of the bottom cover platform, and the operating platform comprises: A central operating platform installed on the plurality of said connecting trusses after combined cross-connection; A plurality of auxiliary operation platforms connected between each adjacent main truss; A plurality of sets of edge protections are respectively installed on the central operating platform and the auxiliary operating platform; and A plurality of lifting steel strands are connected between the corresponding main trusses and the corresponding lifting platforms at the top of the top ring beam.

2. The lifting type sinking circular shaft bottom sealing platform according to claim 1 is characterized in that: The main truss and the connecting truss have the same structure and include an upper chord, a lower chord and a plurality of web members connected between the upper chord and the lower chord.

3. The lifting type sinking circular shaft bottom sealing platform according to claim 2 is characterized in that: The web member is obliquely connected between the upper chord member and the lower chord member, and the same side sections of two adjacent web members are close to and in contact with each other.

4. The lifting type sinking circular shaft bottom sealing platform according to claim 3 is characterized in that: An installation angle of 60° is formed between two adjacent web bars.

5. The lifting type sinking circular shaft bottom sealing platform according to claim 4 is characterized in that: The two alternate webs are parallel to each other.

6. The lifting type sinking circular shaft bottom sealing platform according to claim 5 is characterized in that: The number of the main trusses is five, the number of the embedded parts at the top of the shaft is five, each of the main trusses is connected to the corresponding embedded parts, and a regular pentagonal structure distribution is formed in the circumferential direction of the top of the shaft.

7. The lifting type sinking circular shaft bottom sealing platform according to claim 6 is characterized in that: Each of the main trusses is connected to the other four main trusses by a connecting truss, and a plurality of connecting trusses are combined and cross-connected to form a structure of an outer circle regular pentagon and an inner circle regular five-pointed star.

8. The lifting type sinking circular shaft bottom sealing platform according to claim 7 is characterized in that: The outline of the central operating platform is consistent with the combined cross-connected plurality of connecting trusses in a regular pentagonal structure.

9. The lifting type sinking circular shaft bottom sealing platform according to claim 8 is characterized in that: The number of the auxiliary operation platforms is five and they are connected end to end to form a regular pentagonal structure.

10. The lifting type sinking circular shaft bottom sealing platform according to claim 9, characterized in that: The edge protections are arranged in pairs on both sides of the central operating platform and the auxiliary operating platform to form walkways on the surfaces of the central operating platform and the auxiliary operating platform.

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