Double-layer movable assembly type tunnel operation platform

Abstract

The utility model discloses and provides a double-layer movable assembly type tunnel work platform which comprises a bottom support, a first work platform is fixedly installed at the top end of the bottom support, multiple sets of connecting rods are fixedly installed on the two sides of the first work platform, and the top ends of the multiple sets of connecting rods are connected with a second work platform. The first working platform and the second working platform are of a double-layer structure, a plurality of sets of protective railings are arranged on the first working platform and the second working platform, steel wire guardrail nets are installed between the multiple sets of protective railings, grating steel plates are laid on the outer surfaces of the bottom ends of the first working platform and the second working platform, and movable stairs are arranged between the first working platform and the second working platform. According to the working platform, the working space is effectively enlarged, more working personnel can work at the same time, the construction efficiency is improved, the working personnel can easily move between the two layers of platforms through the arranged movable stairs, the working convenience is greatly improved, and the problem that a large-diameter tunnel is difficult to construct is perfectly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel operation platforms, in particular to a double-layer movable assembled tunnel operation platform. Background Art

[0002] Rail transit projects, as an important part of the transportation network, are not only related to the convenience of urban transportation, but also have a far-reaching impact on regional economic development. The design and construction of the tunnel section of the project face a series of technical challenges. The main strata that the tunnel passes through are medium-dense and dense water-rich sand and gravel strata. This geological condition puts higher requirements on the tunneling speed and stability of the shield machine. In order to meet these challenges, the project used the China Communications Tianhe φ8580 earth pressure balance shield machine for shield excavation construction.

[0003] Due to the large diameter of the tunnel, after the tunnel segments are removed from the shield machine's supporting trolley, the subsequent construction of the tunnel sides and top becomes particularly difficult. The traditional method of erecting scaffolding and installing working platforms seems to be inadequate in this situation. First of all, the erection and dismantling of scaffolding requires a lot of manpower and time costs, which not only increases the construction cost, but also may cause delays in the construction progress. Secondly, multiple erection and dismantling of scaffolding construction may also cause potential safety hazards to the tunnel structure. In addition, since the progress of construction defect elimination is affected, the progress of the physical acceptance of the section tunnel will also become slow, which will have an adverse impact on the delivery and operation of the entire project.

[0004] Therefore, in order to solve the construction problems after the large-diameter tunnel segments slip out of the shield machine, it is necessary to explore new construction methods and technical means to improve construction efficiency, reduce construction costs, ensure construction safety, and promote the smooth progress of the physical acceptance of the section tunnel. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In view of this, the purpose of the utility model is to provide a double-layer movable assembled tunnel working platform to solve the problems raised in the above background.

[0007] (II) Technical solution

[0008] A double-layer movable assembled tunnel working platform, comprising a bottom bracket, a first working platform is fixedly installed on the top of the bottom bracket, and multiple groups of connecting rods are fixedly installed on both sides of the first working platform, and the tops of the multiple groups of connecting rods are connected to the second working platform, multiple groups of guardrails are fixedly installed on both sides of the first working platform and the second working platform, and a wire guardrail is installed between the multiple groups of guardrails, the bottom end outer surfaces of the first working platform and the second working platform are paved with grid steel plates, and a movable staircase is arranged between the first working platform and the second working platform, a cage ladder is arranged on one side of the first working platform, a cavity is opened at the bottom end of the bottom bracket, and an adjusting rod is movably installed in the cavity, the bottom end of the adjusting rod is connected to a heavy-duty caster, and a caster is fixedly installed between the adjusting rods. A first connecting cross bar is installed, one side of the first connecting cross bar is connected to the second connecting cross bar, and one end of the second connecting cross bar is connected to a fixing plate, a shell is fixedly installed between the fixing plate and the first working platform, and a sliding groove is provided on the outer surface of the shell, two groups of fixing seats are fixedly installed on the inner wall cavity of the shell, the outer surfaces of the two groups of the fixing seats are provided with circular through grooves, and a screw rod is movably installed in the circular through groove, one end of the screw rod is connected to a motor, and the other end of the screw rod is connected to a locking piece, a movable block is movably installed on the outer surface of the screw rod, and the outer surfaces of the movable blocks are fixedly installed with a first connecting rod and a second connecting rod, and one end of the first connecting rod and the second connecting rod are respectively connected to the first fixing rod and the second fixing rod, and the first fixing rod and the second fixing rod are both connected to each other with the bottom bracket.

[0009] Preferably, each block component of the first working platform and the second working platform are welded to each other, and then the block components are assembled by bolt connection.

[0010] Preferably, reinforcement steel pipes are fixedly installed on both sides of the bottom bracket, and the reinforcement steel pipes are triangular in shape.

[0011] Preferably, the motor is fixedly connected to a fixing seat.

[0012] Preferably, support rods are fixedly mounted on both sides of the bottom bracket, and the support rods are in an X shape.

[0013] Preferably, the height between the first working platform and the second working platform is 2 meters, the wire fence is 1.2 meters high, and the anti-slip grating steel plate is 2.9 meters wide.

[0014] Preferably, the heavy-duty casters are fixed by means of special rolling tools.

[0015] It can be seen from the above technical solutions that the present application has the following beneficial effects:

[0016] 1. The utility model designs a double-layer structure of the first working platform and the second working platform. The working platform effectively expands the working space, allowing more workers to work at the same time and improving the construction efficiency. The movable stairs allow the workers to easily move between the two platforms, greatly improving the convenience of the work, perfectly solving the problem of difficulty in large-diameter tunnel construction, providing a safe working space, and having the advantages of safe and smooth movement. The block-assembly design makes it easy and quick to install and disassemble. At the same time, it can also be scaled for the construction of tunnels with different cross-sectional sizes, and has universality.

[0017] 2. The utility model drives the screw rod to rotate through the motor, drives the movable block to move, and then realizes the lifting and lowering action of the platform. This design allows the platform to be flexibly adjusted according to construction needs and adapt to the operation requirements of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the bottom split structure of the utility model;

[0020] Figure 3 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 For this utility model Figure 1 The enlarged schematic diagram of point B in the middle;

[0022] Figure 5 For this utility model Figure 2 The enlarged schematic diagram at C in the middle;

[0023] Figure 6 For this utility model Figure 2 Enlarged schematic diagram at point D in the middle.

[0024] In the figure: 1. bottom bracket; 2. reinforcement steel pipe; 3. first working platform; 4. guardrail; 5. connecting rod; 6. second working platform; 7. cage ladder; 8. movable staircase; 911. first connecting cross bar; 912. second connecting cross bar; 511. fixing plate; 611. shell; 711. first connecting rod; 712. second connecting rod; 713. movable block; 714. screw rod; 715. fixing seat; 716. motor; 717. locking piece; 111. heavy-duty casters; 112. adjustment rod; 211. support rod; 811. first fixing rod; 812. second fixing rod. DETAILED DESCRIPTION

[0025] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0026] See also Figure 1-6 , an embodiment provided by the utility model:

[0027] A double-layer movable assembled tunnel working platform, comprising a bottom bracket 1, a first working platform 3 is fixedly installed on the top of the bottom bracket 1, and multiple groups of connecting rods 5 are fixedly installed on both sides of the first working platform 3, and the tops of the multiple groups of connecting rods 5 are connected to a second working platform 6, multiple groups of guardrails 4 are fixedly installed on both sides of the first working platform 3 and the second working platform 6, and a wire guardrail net is installed between the multiple groups of guardrails 4, the outer surfaces of the bottom ends of the first working platform 3 and the second working platform 6 are paved with grid steel plates, and a movable staircase 8 is arranged between the first working platform 3 and the second working platform 6, a cage ladder 7 is arranged on one side of the first working platform 3, a cavity is opened at the bottom end of the bottom bracket 1, and an adjusting rod 112 is movably installed in the cavity, the bottom end of the adjusting rod 112 is connected to a heavy-duty caster 111, and a first connecting cross bar 911 is fixedly installed between the adjusting rods 112, and one side of the first connecting cross bar 911 is connected to A second connecting cross bar 912 is connected, and one end of the second connecting cross bar 912 is connected to a fixing plate 511, a shell 611 is fixedly installed between the fixing plate 511 and the first working platform 3, and a sliding groove is provided on the outer surface of the shell 611, and two groups of fixing seats 715 are fixedly installed in the inner wall cavity of the shell 611, and circular through grooves are provided on the outer surfaces of the two groups of fixing seats 715, and screw rods 714 are movably installed in the circular through grooves, one end of the screw rod 714 is connected to a motor 716, and the other end of the screw rod 714 is connected to a locking piece 717, and a movable block 713 is movably installed on the outer surface of the screw rod 714, and the outer surfaces of the movable block 713 are fixedly installed with a first connecting rod 711 and a second connecting rod 712, and one end of the first connecting rod 711 and the second connecting rod 712 are respectively connected to a first fixing rod 811 and a second fixing rod 812, and the first fixing rod 811 and the second fixing rod 812 are both connected to the bottom bracket 1.

[0028] Furthermore, the various block components of the first working platform 3 and the second working platform 6 are welded to each other, and then the block components are assembled by bolt connection. The welding connection method can ensure the close connection between the various block components, making the overall structure of the platform more stable and able to withstand greater loads and external forces. The block components are assembled by bolt connection, making the installation and disassembly process of the platform convenient and quick.

[0029] Furthermore, reinforcing steel pipes 2 are fixedly installed on both sides of the bottom bracket 1, and the reinforcing steel pipes 2 are triangular in shape. By fixing the triangular-shaped reinforcing steel pipes 2 on both sides of the bottom bracket 1, the stability and bearing capacity of the bottom bracket are significantly enhanced.

[0030] Furthermore, the motor 716 is fixedly connected to the fixing base 715, thereby ensuring the stability of the motor 716 during operation and reducing the risk of displacement or damage of the motor 716 due to vibration or movement.

[0031] Furthermore, support rods 211 are fixedly installed on both sides of the bottom bracket 1, and the support rods 211 are X-shaped. The design of the X-shaped structure can effectively disperse and withstand the pressure from the platform, thereby improving the overall stability of the platform.

[0032] Furthermore, the height between the first working platform 3 and the second working platform 6 is 2 meters, the wire fence is 1.2 meters high, and the anti-slip grating steel plate is 2.9 meters wide. The specific dimensions make the platform design more precise and standardized, which not only ensures the safety of the workers, but also improves the construction efficiency and quality.

[0033] Furthermore, the heavy-duty casters 111 are fixed by special rolling tools, which enhances the stability and durability of the casters, makes the platform more stable and safer during movement, and reduces the risk of accidents caused by loosening or falling off of the casters.

[0034] Working principle: The bottom bracket 1 serves as the supporting foundation of the entire platform, and firmly supports the first working platform 3 through the fixed installation structure at its top. The first working platform 3 is connected to the second working platform 6 through multiple sets of connecting rods 5 to form a double-layer structure, thereby expanding the working space. Multiple sets of guardrails 4 and wire guardrails on both sides provide safety protection for the working platform, ensuring the safety of the operators during the operation. At the same time, the laying of the grid steel plate not only enhances the load-bearing capacity of the platform, but also provides a stable working surface. The movable staircase 8 set between the first working platform 3 and the second working platform 6 allows the operators to move up and down between the two platforms easily, improving the convenience of the operation. The setting of the cage ladder 7 allows the operators to safely enter the first working platform 3 from the ground, and the screw rod 714 can be rotated by the drive of the motor, thereby driving the movable block 713 to move on the screw rod. The movable block 713 is connected to the first fixing rod 811 and the second fixing rod 812 through the first connecting rod 711 and the second connecting rod 712, thereby driving the bottom bracket 1 to move up and down on the outer surface of the adjusting rod 112, thereby realizing the lifting action of the platform.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A double-layer movable assembled tunnel working platform, including a bottom bracket, characterized in that: A first working platform is fixedly installed on the top of the bottom bracket, and multiple groups of connecting rods are fixedly installed on both sides of the first working platform, and the tops of the multiple groups of connecting rods are connected to a second working platform, multiple groups of guardrails are fixedly installed on both sides of the first working platform and the second working platform, and a wire guardrail is installed between the multiple groups of guardrails, the outer surfaces of the bottom ends of the first working platform and the second working platform are paved with grid steel plates, and a movable staircase is arranged between the first working platform and the second working platform, and a cage ladder is arranged on one side of the first working platform, a cavity is opened at the bottom end of the bottom bracket, and an adjusting rod is movably installed in the cavity, the bottom end of the adjusting rod is connected to a heavy-duty caster, and a first connecting cross bar is fixedly installed between the adjusting rods, and the first A second connecting cross bar is connected to one side of a connecting cross bar, and one end of the second connecting cross bar is connected to a fixing plate, a shell is fixedly installed between the fixing plate and the first working platform, and a sliding groove is provided on the outer surface of the shell, two groups of fixing seats are fixedly installed on the inner wall cavity of the shell, circular through grooves are provided on the outer surfaces of the two groups of fixing seats, and a screw rod is movably installed in the circular through groove, one end of the screw rod is connected to a motor, and the other end of the screw rod is connected to a locking piece, a movable block is movably installed on the outer surface of the screw rod, a first connecting rod and a second connecting rod are fixedly installed on the outer surface of the movable block, and one end of the first connecting rod and the second connecting rod are respectively connected to the first fixing rod and the second fixing rod, and the first fixing rod and the second fixing rod are both connected to each other with the bottom bracket.

2. A double-layer movable assembled tunnel working platform according to claim 1, characterized in that: The block components of the first working platform and the second working platform are welded to each other, and then the block components are assembled by bolt connection.

3. A double-layer movable assembled tunnel working platform according to claim 1, characterized in that: Reinforced steel pipes are fixedly installed on both sides of the bottom bracket, and the reinforced steel pipes are triangular in shape.

4. The double-layer movable assembled tunnel working platform according to claim 1 is characterized in that: The motor is fixedly connected to the fixing seat.

5. The double-layer movable assembled tunnel working platform according to claim 1 is characterized in that: Support rods are fixedly installed on both sides of the bottom bracket, and the support rods are in an X shape.

6. The double-layer movable assembled tunnel working platform according to claim 1 is characterized in that: The height between the first working platform and the second working platform is 2 meters, the wire fence is 1.2 meters high, and the anti-slip grating steel plate is 2.9 meters wide.

7. The double-layer movable assembled tunnel working platform according to claim 1 is characterized in that: The heavy-duty casters are fixed by means of special rolling tools.

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