Workbench for shield construction

Abstract

The utility model provides a workbench for shield construction. The workbench comprises a first operation platform and a second operation platform, the first operation platform comprises a first rack, limiting supporting legs arranged at the bottom of the first rack and a first table plate arranged in the first rack. A battery car soil bucket clamping space is formed among the first limiting supporting leg, the second limiting supporting leg and the first rack; the battery car soil bucket clamping space is located in the middle of the first rack; the second operation platform comprises a supporting column fixedly arranged in the middle of the top end of the first rack, a second rack horizontally and fixedly arranged at the top end of the supporting column and a second table plate arranged in the second rack. The second operation platform divides the first operation platform into two parts in the longitudinal direction of the first rack. The problems that in the prior art, during shield tunnel construction, climbing tools such as a ladder stand are inconvenient to use and cannot be suitable for construction at different heights at the same time, the safety coefficient is low, and the economical efficiency is poor when a large operation trolley is adopted for working can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of subway shield tunnel construction, and more specifically, to a workbench used for shield construction. Background Art

[0002] The shield method is a commonly used construction method for subway tunnels, which has the advantages of safety, high efficiency and environmental protection. During the shield construction process, it is necessary to seal the hand holes, caulking and quality inspection of the shield segments. At the same time, quality defects such as damage and leakage of the shield segments occasionally occur during the construction process, which need to be repaired.

[0003] At present, the common shield tunnel diameter is generally more than 6m. The top and both sides of the tunnel are at a high position. It is very inconvenient and has a low safety factor to use climbing tools such as ladders to operate on the top, and one climbing tool cannot be suitable for construction at different heights at the same time. The use of large work trolleys for work is not economical. Therefore, there is currently a lack of a device with high safety factor, good economy, and suitable for construction at different heights on the top and both sides of the top of the tunnel. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a workbench for shield construction, so as to solve the problems in the prior art that ladders and other climbing tools are inconvenient to use during shield tunnel construction and cannot be suitable for construction at different heights at the same time, and have a low safety factor and poor economy when using large work trolleys.

[0005] The utility model provides a workbench for shield construction, comprising a first operating platform and a second operating platform; wherein, the first operating platform comprises a first frame, a limiting leg arranged at the bottom of the first frame and a first platform plate arranged inside the first frame; wherein, the limiting leg comprises a first limiting leg and a second limiting leg arranged along the longitudinal direction of the first frame; a battery vehicle bucket clamping space is formed between the first limiting leg, the second limiting leg and the first frame; the battery vehicle bucket clamping space is located in the middle of the first frame; the second operating platform comprises support columns fixedly arranged at the four corners in the middle of the top end of the first frame, a second frame horizontally fixedly arranged at the top end of the support columns and a second platform plate arranged inside the second frame; the second operating platform divides the first operating platform into two parts along the longitudinal direction of the first frame.

[0006] In addition, a preferred structure is that guardrails are arranged around the top of the first operating platform; heightened guardrails are arranged on both sides of the top of the second operating platform; and the heightened guardrails are arranged on the top of the guardrails.

[0007] In addition, a preferred structure is that the guardrail is welded to the first platform; the heightened guardrail is welded to the top of the guardrail; and a small platform door is provided on the guardrail.

[0008] In addition, a preferred structure is that the platform door is installed on the guardrail through a hinge.

[0009] In addition, a preferred structure is that the first frame includes at least two parallel longitudinal beams and a transverse beam connected between adjacent longitudinal beams; a first limiting leg and a second limiting leg are provided at the bottom end of each longitudinal beam.

[0010] In addition, a preferred structure is that both ends of the cross beam are respectively welded and fixed to adjacent longitudinal beams.

[0011] In addition, a preferred structure is that the limiting leg includes a column vertically arranged at the bottom of the longitudinal beam and a diagonal brace with one end fixed to the bottom end of the longitudinal beam and the other end fixed to the lower part of the column.

[0012] In addition, a preferred structure is that the column is welded and fixed to the bottom of the longitudinal beam; one end of the diagonal brace is welded to the bottom end of the longitudinal beam, and the other end is welded to the lower part of the column.

[0013] In addition, a preferred structure is that a lifting ear is fixedly provided on the outer side wall of the limiting leg.

[0014] In addition, a preferred structure is that the bottom end of the support column is welded and fixed on the first rack; and the bottom end of the second rack is welded to the top end of the support column.

[0015] It can be seen from the above technical scheme that the workbench for shield construction provided by the utility model has a structural design of the first operating platform and the second operating platform. The second operating platform divides the first operating platform into two parts along the longitudinal direction of the first frame, and can be simultaneously applicable to the construction of different heights on the top of the tunnel and on both sides of the top. By setting the limit legs, the battery car bucket clamping space is formed between the first limit legs, the second limit legs and the first frame, which can be clamped and fixed above the battery car bucket. The battery car bucket is used to form a stable support for the first operating platform and the second operating platform on the top to improve the safety factor. The workbench for shield construction provided by the utility model can be quickly installed and disassembled according to the needs of the shield tunnel construction site, and the process gaps and downtime can be used to repair and detect the shield segments; it has the advantages of fast installation and disassembly of the working platform, safety and stability, adaptability to the needs of operations at different heights, and economy and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other purposes and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of a workbench used for shield construction according to an embodiment of the utility model;

[0018] Figure 2 Another structural schematic diagram of a workbench for shield construction according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the use status of a workbench in shield construction according to an embodiment of the utility model.

[0020] In the attached drawings, 1-first operating platform, 11-first platform, 12-limiting leg, 121-first limiting leg, 122-second limiting leg, 123-column, 124-diagonal brace, 131-longitudinal beam, 132-cross beam, 2-second operating platform, 21-support column, 22-second platform, 23-second platform, 3-guardrail, 4-heightened guardrail, 5-platform small door, 6-platform small door baffle, 7-hinge, 8-lifting ear, 9-battery car bucket.

[0021] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0022] In response to the above-mentioned problems that in the prior art, climbing tools such as ladders are inconvenient to use during shield tunnel construction and cannot be suitable for construction at different heights at the same time, and have a low safety factor, and the use of large work trolleys for work is not economical, a work platform for shield construction is proposed.

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] In order to illustrate the workbench for shield construction provided by the utility model, Figure 1 The structure of a workbench for shield construction according to an embodiment of the utility model is shown; Figure 2 Another structure of a workbench for shield construction according to an embodiment of the utility model is shown; Figure 3 The figure shows the use status of the workbench in shield construction according to the embodiment of the utility model.

[0025] like Figures 1 to 3As shown together, the workbench for shield construction provided by the utility model includes a first operating platform 1 and a second operating platform 2; wherein, the first operating platform 1 includes a first frame, a limiting leg 12 arranged at the bottom of the first frame and a first platform plate 11 arranged inside the first frame; wherein, the limiting leg 12 includes a first limiting leg 121 and a second limiting leg 122 arranged along the longitudinal direction of the first frame; a battery vehicle bucket clamping space is formed between the first limiting leg 121, the second limiting leg 122 and the first frame; the battery vehicle bucket clamping space is located in the middle of the first frame; the second operating platform 2 includes a support column 21 fixed in the middle of the top end of the first frame, a second frame 22 horizontally fixed at the top end of the support column 21 and a second platform plate 23 arranged inside the second frame 22; the second operating platform 2 divides the first operating platform 1 into two parts along the longitudinal direction of the first frame.

[0026] The first operating platform 1 and the second operating platform 2 can preferably be made of stamped steel scaffolding boards laid on the crossbeams and longitudinal beams, and fixed by welding or wire binding. Construction workers can operate on both sides of the shield tunnel on the first operating platform 1; construction workers standing on the second operating platform 2 can perform related operations on both sides of the top of the shield tunnel.

[0027] Through the structural design of the first operating platform 1 and the second operating platform 2, the second operating platform 2 divides the first operating platform 1 into two parts along the longitudinal direction of the first frame, and can be simultaneously applicable to the construction of different heights on the top of the tunnel and both sides of the top. By setting the limit legs 12, the battery car bucket clamping space is formed between the first limit legs 121, the second limit legs 122 and the first frame, which can be clamped and fixed above the battery car bucket 9. The battery car bucket 9 is used to form a stable support for the first operating platform 1 and the second operating platform 2 on the top to improve the safety factor. The workbench for shield construction provided by the utility model can be quickly installed and disassembled according to the needs of the shield tunnel construction site, and the shield segments can be repaired and tested during the process intervals and downtime; it has the advantages of fast installation and disassembly of the working platform, safety and stability, adaptability to the needs of operations at different heights, and economy and durability.

[0028] As a preferred solution of the utility model, guardrails 3 are arranged around the top of the first operating platform 1 ; heightened guardrails 4 are arranged on both sides of the top of the second operating platform 2 ; and the heightened guardrails 4 are arranged on the top of the guardrails 3 .

[0029] The guardrail 3 is provided to protect the construction personnel standing on the first operating platform 1, wherein the height of the guardrail 3 can be set according to actual needs. The guardrail 3 is composed of a plurality of vertical poles and horizontal bars, and is arranged at the periphery of the first operating platform 1 (also located at the periphery of the second operating platform), and the vertical poles and horizontal bars are connected by welding, and the vertical poles and horizontal bars are preferably made of small square steel. The heightened guardrail 4 is provided at the top of the guardrail 3 to protect the construction personnel on the second operating platform 2. Since the second operating platform is fixed to the top of the first platform by the support column 21, the table top of the second operating platform 2 is higher than the table top of the first operating platform 1, so the heightened guardrail 4 is provided, and the height of the heightened guardrail 4 can be set according to actual needs. The heightened guardrail 4 can also be composed of a plurality of vertical poles and horizontal bars.

[0030] As a preferred solution of the utility model, the guardrail 3 is welded to the first frame; the heightened guardrail 4 is welded to the top of the guardrail 3; and a small platform door 5 is provided on the guardrail 3.

[0031] The guardrail 3 and the heightened guardrail 4 are fixed by welding to increase the firmness of the installation. A small platform door 5 can be set on the side of the working platform close to the pedestrian walkway of the shield tunnel. The small platform door 5 is opened and closed on the guardrail 3, and a small platform door baffle 6 is set on the other side. The small platform door is preferably opened inward, and personnel can enter the working platform through the pedestrian walkway. When the small platform door 5 is closed, it can protect the personnel on the operating platform. The small platform door 5 can be made of small square steel; the small platform door baffle 6 is preferably a steel plate, which is welded to the support column 21. A small platform door baffle 6 is set on the guardrail 3, and the small platform door baffle 6 is located on the opening and closing side of the small platform door 5. A first fixing pin hole is set on the small platform door baffle 6, and a second fixing pin hole is set at the opening and closing end of the small platform door 5. The fixed bolt hole of the emcee and the second fixed bolt hole are fixed by plugging and fixing by a fixing pin. Thereby further increasing safety.

[0032] As a preferred solution of the utility model, the platform door 5 is installed on the guardrail 3 through a hinge 7. It is convenient for the opening and closing of the platform door 5. Of course, other structures can also be used for replacement, and the utility model does not make special restrictions on this.

[0033] As a preferred solution of the utility model, the first frame includes at least two parallel longitudinal beams 131 and a cross beam 132 connected between adjacent longitudinal beams 131 ; a first limiting leg 121 and a second limiting leg 122 are provided at the bottom end of each longitudinal beam 131 .

[0034] The number of longitudinal beams 131 can be set as required, as shown in the attached diagram of the present invention. Figure 1-3Two parallel longitudinal beams 131 are selected, and a first limiting leg 121 and a second limiting leg 122 are provided at the bottom end of each longitudinal beam 131, that is, four limiting legs 12 are provided. Of course, the number of longitudinal beams 131 can also be set to three, four, etc. according to actual needs. By providing a first limiting leg 121 and a second limiting leg 122 at the bottom end of each longitudinal beam 131, the stability of the clamping on the bucket of the battery vehicle is increased.

[0035] For example, four limiting legs are provided on both sides below the first working platform 1, and the net distance of the limiting legs on both sides (the first limiting leg 121 and the second limiting leg 122) is slightly larger than the size of the battery vehicle bucket 9, and can be effectively fixed above the battery vehicle bucket 9. The limiting legs can be made of square steel, channel steel, etc.

[0036] As a preferred solution of the present invention, both ends of the cross beam 132 are respectively welded and fixed on the adjacent longitudinal beam 131. The cross beam 132 and the longitudinal beam 131 are preferably square steel, channel steel, etc., and are fixed to form a first frame by welding, so that the structure is more firm and durable.

[0037] As a preferred solution of the utility model, the limiting leg 12 includes a column 123 vertically arranged at the bottom of the longitudinal beam 131 and a diagonal brace 124 with one end fixed at the bottom of the longitudinal beam 131 and the other end fixed at the lower part of the column 123. The diagonal brace 124 makes the structure of the limiting leg 12 more stable and enhances the overall stability.

[0038] As a preferred solution of the utility model, the column 123 is welded and fixed to the bottom of the longitudinal beam 131; one end of the diagonal brace 124 is welded to the bottom end of the longitudinal beam 131, and the other end is welded to the lower part of the column 123. By welding and fixing, the firmness is further increased.

[0039] As a preferred solution of the utility model, a lifting lug 8 is fixed on the outer wall of the limiting leg 12. The lifting lug 8 is welded to the limiting leg 12, and a lifting lug 8 is arranged on the outer side of each limiting leg 12, and a steel wire rope can be passed through the middle opening. The lifting lug 8 is used for lifting when the working platform is installed and disassembled on the battery car bucket 9, making the installation and disassembly of the working platform more convenient and quick.

[0040] As a preferred solution of the utility model, the bottom end of the support column 21 is welded and fixed on the first stand; the bottom end of the second stand 22 is welded to the top end of the support column 21 .

[0041] The support column 21 is arranged above the longitudinal beam 131 of the first operating platform 1. The second platform 22 of the second operating platform 2 is arranged on the support column 21. The second platform 22 is composed of a cross beam and a longitudinal beam. The support column 21 can be made of square steel, channel steel, etc. The number of the support columns 21 can be 4, 6, or 8, and they are evenly arranged on the two longitudinal beams 131 to play a role in fixing and supporting the second platform 22.

[0042] It can be seen from the above specific implementation methods that the workbench for shield construction provided by the utility model, through the structural design of the first operating platform and the second operating platform, the second operating platform divides the first operating platform into two parts along the longitudinal direction of the first frame, and can be simultaneously applicable to the construction of different heights on the top of the tunnel and on both sides of the top. By setting the limit legs, the battery car bucket clamping space is formed between the first limit legs, the second limit legs and the first frame, which can be clamped and fixed above the battery car bucket, and the battery car bucket is used to form a stable support for the first operating platform and the second operating platform on the top to improve the safety factor. The workbench for shield construction provided by the utility model can be quickly installed and disassembled according to the needs of the shield tunnel construction site, and the process gaps and downtime can be used to repair and detect the shield segments; it has the advantages of fast installation and disassembly of the working platform, safety and stability, adaptability to the needs of operations at different heights, and economy and durability.

[0043] As described above, the work platform for shield construction proposed by the utility model is described in an exemplary manner with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the work platform for shield construction proposed by the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the attached claims.

Claims

1. A workbench for shield construction, characterized in that: It includes a first operating platform and a second operating platform; wherein, The first operating platform includes a first frame, a limiting support leg arranged at the bottom of the first frame, and a first platform plate arranged inside the first frame; wherein, The limiting legs include a first limiting leg and a second limiting leg arranged along the longitudinal direction of the first frame; a battery vehicle bucket clamping space is formed between the first limiting leg, the second limiting leg and the first frame; the battery vehicle bucket clamping space is located in the middle of the first frame; The second operating platform includes a support column fixed at the middle of the top end of the first frame, a second frame horizontally fixed at the top end of the support column, and a second platform arranged inside the second frame; the second operating platform divides the first operating platform into two parts along the longitudinal direction of the first frame.

2. The workbench for shield construction according to claim 1, characterized in that: Guardrails are arranged around the top of the first operating platform; Heightened guardrails are provided on both sides of the top of the second operating platform; The heightened guardrail is arranged on the top of the guardrail.

3. The workbench for shield construction according to claim 2, characterized in that: The guardrail is welded on the first frame; The heightened guardrail is welded to the top of the guardrail; A small platform door is provided on the guardrail.

4. The workbench for shield construction according to claim 3, characterized in that: The platform small door is installed on the guardrail through a hinge.

5. The workbench for shield construction according to claim 1, characterized in that: The first frame includes at least two longitudinal beams arranged in parallel and a cross beam connected between adjacent longitudinal beams; a first limiting leg and a second limiting leg are arranged at the bottom end of each longitudinal beam.

6. The workbench for shield construction according to claim 5, characterized in that: The two ends of the cross beam are respectively welded and fixed on the adjacent longitudinal beams.

7. The working platform for shield construction according to claim 5, characterized in that: The position-limiting leg comprises a column vertically arranged at the bottom of the longitudinal beam and a diagonal brace with one end fixed at the bottom of the longitudinal beam and the other end fixed at the lower part of the column.

8. The workbench for shield construction according to claim 7, characterized in that: The upright column is welded and fixed to the bottom of the longitudinal beam; One end of the diagonal brace is welded to the bottom end of the longitudinal beam, and the other end is welded to the lower part of the column.

9. The workbench for shield construction according to claim 1, characterized in that: A lifting ear is fixedly provided on the outer side wall of the position-limiting supporting leg.

10. The working platform for shield construction according to claim 1, characterized in that: The bottom end of the support column is welded and fixed on the first stand; The bottom end of the second stand is welded to the top end of the support column.

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