Safe operation platform for vertical shaft excavation supporting construction

Abstract

The utility model discloses a safe operation platform for shaft excavation supporting construction, and belongs to the technical field of shaft expanding excavation. Comprising a protective top plate, an excavator platform and a plurality of I-shaped steel, the protective top plate is connected with a guide pipe in a penetrating mode, the lower end of the guide pipe is close to the excavator platform, a spiral conveyor is arranged in the guide pipe in a sleeved mode and fixed to the protective top plate, and a sliding channel is reserved between the spiral conveyor and the guide pipe. A plurality of supporting wheels capable of being adjusted in a telescopic mode are annularly distributed on the protection top plate and the excavator platform, a plurality of lifting lugs are annularly distributed on the protection top plate, and the technical effects that the excavation efficiency is improved, and muck falling from the protection top plate can be conveniently and intensively cleaned are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of shaft expansion, and more specifically, to a safe operation platform for shaft excavation support construction. Background Art

[0002] At present, in the process of shaft excavation, especially in the process of expansion, personnel and equipment are needed for support and slag removal, and each time the excavation is completed, personnel and equipment are required to enter the shaft excavation surface. During the expansion process, workers are often required to carry equipment and stand on the operating platform to expand the surrounding side walls. However, when the equipment resonates with the side wall, the gravel above the shaft is likely to fall, which poses a certain degree of safety hazard. At the same time, the manual operation method is cumbersome, time-consuming and labor-intensive, which greatly affects the efficiency of shaft expansion.

[0003] The document with prior art publication number CN 220890201 U provides a safe operating platform for shaft excavation support construction. The device hangs the hook of a gantry crane with cables on four lifting ears, installs a small excavator on the excavator platform, and then hoists the device into the shaft. The side wall of the shaft is excavated by controlling the small excavator. When falling rocks occur, since the diameter of the safety plate and the operating platform is larger than the excavator platform, the falling rocks will fall on the surface of the uppermost safety plate to prevent injuries. At the same time, workers can also stand on the operating platform to assist in excavating and removing slag, which effectively solves the problem of injuries caused by falling rocks. At the same time, the excavator can be loaded to improve the excavation efficiency.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when rocks fall onto the safety plate, the device needs to manually clean up the rocks, and when the debris excavated by the excavator is placed on the third steel plate, the overall load will be increased, and the load on the gantry hook and cable will be increased; if the debris is lifted up and cleaned by the gantry crane during the excavation process, and then excavated in the vertical shaft, the efficiency of the entire expansion will be reduced.

[0005] In view of this, we propose a safe operation platform for shaft excavation and support construction. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of this application is to provide a safe operation platform for shaft excavation support construction, which solves the technical problems in the above-mentioned background technology, achieves the technical effect of improving excavation efficiency, and facilitates centralized cleaning of debris dropped from the protective top plate.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a safe operation platform for shaft excavation support construction, including a protective top plate, an excavator platform and a plurality of I-beams, the protective top plate is connected with a conduit, the lower end of the conduit is close to the excavator platform, a screw conveyor is sleeved in the conduit, the screw conveyor is fixed on the protective top plate, a sliding channel is reserved between the screw conveyor and the conduit, the protective top plate and the excavator platform are both annularly distributed with a plurality of retractable and adjustable support wheels, and the protective top plate is annularly distributed with a plurality of lifting ears.

[0010] By adopting the above technical scheme, the protective top plate and the excavator platform are fixedly connected by multiple I-beams, the hook of the gantry crane is hung with cables on four lifting ears, the small excavator is installed on the excavator platform, and then the device is hoisted into the vertical shaft. The side wall of the vertical shaft is expanded by controlling the small excavator. When rockfall occurs, the rockfall falls on the protective top plate and falls onto the excavator platform through the guide tube. The debris excavated by the small excavator is placed on the conveying end of the screw conveyor, and the excavated debris is lifted to the ground by the screw conveyor to facilitate the cleaning of the debris. At the same time, there is no need to clean the debris on the protective top plate, which improves the efficiency of debris cleaning. In addition, through the telescopic adjustment of multiple support wheels, the support wheels are supported on the inner wall of the vertical shaft. First, the friction with the shaft wall is reduced, and second, the overall stability is improved during lowering to prevent shaking in the shaft and collision with the shaft wall.

[0011] As an optional solution to the technical solution of the present application document, the protective top plate is an inverted conical structure, a groove is provided on the excavator platform, and the screw conveyor includes an outer tube, a discharge pipe which is perpendicular to and connected to the outer tube, an auger rotatably arranged in the outer tube, and a motor which is transmission-connected to the auger.

[0012] By adopting the above technical solution, the motor is fixed on the outer tube, the output shaft of the motor is coaxially fixed with the shaft of the auger, the inverted conical structure of the protective top plate can guide the fallen debris in the direction of the guide tube, and the lower end of the auger is placed at the low point of the groove. The debris dug out by the small excavator is poured into the groove, and then the auger is driven by the motor to rotate, the debris is lifted and discharged through the discharge pipe. The length of the discharge pipe is greater than the radius of the shaft, so that the debris can be directly transported to the ground.

[0013] As an optional solution of the technical solution of the present application document, a plurality of fixing rods are fixedly installed between the outer tube and the protective top plate, and a plurality of annularly distributed inclined rods are fixedly installed between the top of the outer tube and the protective top plate.

[0014] By adopting the above technical solution, the outer tube is fixed on the protective top plate through a plurality of fixing rods and inclined rods.

[0015] As an optional solution to the technical solution of the present application document, a protective net with an open structure on one side is fixed between the protective top plate and the excavator platform.

[0016] By adopting the above technical solution, the local area between the protective top plate and the excavator platform is protected by the protective net to reduce the risk of falling rocks between the protective top plate and the excavator platform injuring operators, and the opening is used to facilitate the operation of the small excavator.

[0017] As an optional solution of the technical solution of this application document, the support wheel includes a sleeve, a rod slidably inserted in the sleeve, and a roller rotatably connected to the rod, and the sleeve is threadedly connected with a locking screw that abuts against the rod.

[0018] By adopting the above technical solution, multiple sleeves are fixed in an annular manner on the protective top plate and the excavator platform, which are connected to the insertion rod through the rotation of the roller shaft, and the roller support area is adjusted by sliding and adjusting the insertion rod and the sleeve, and finally fixed by the locking screw.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0021] 1. In the present application, a protective top plate and an excavator platform are fixedly connected by multiple I-beams, a lifting hook of a gantry crane is hung with cables on four lifting ears, a small excavator is installed on the excavator platform, and the device is subsequently hoisted into the shaft, and the side wall of the shaft is expanded and excavated by controlling the small excavator. When rockfall occurs, the rockfall falls onto the protective top plate and falls onto the excavator platform through a guide tube. The debris excavated by the small excavator is placed on the conveying end of the screw conveyor, and the excavated debris is lifted to the ground by the screw conveyor for easy cleaning of the debris. At the same time, there is no need to clean the debris on the protective top plate, thereby improving the efficiency of debris cleaning. Furthermore, through the telescopic adjustment of multiple support wheels, the support wheels are supported on the inner wall of the shaft, which, on the one hand, reduces the friction with the shaft wall, and on the other hand, improves the stability of the whole when lowered to prevent shaking in the shaft and collision with the shaft wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a safe operation platform for shaft excavation support construction disclosed in a preferred embodiment of the present application;

[0023] Figure 2 A schematic diagram of a partial cross-section structure of a safety operation platform for shaft excavation support construction disclosed in a preferred embodiment of the present application;

[0024] Figure 3 A preferred embodiment of the present application discloses a safe operation platform for shaft excavation support construction Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 A schematic diagram of the explosion structure of a screw conveyor of a safe operation platform for shaft excavation support construction disclosed in a preferred embodiment of the present application;

[0026] Explanation of the numbers in the figure: 1. Protective top plate; 101. Lifting ear; 2. Excavator platform; 201. Groove; 3. I-beam; 4. Conduit; 5. Screw conveyor; 501. Outer tube; 502. Discharge pipe; 503. Auger; 504. Motor; 6. Support wheel; 601. Casing; 6011. Locking screw; 602. Insert rod; 603. Roller; 7. Fixed rod; 8. Diagonal tie rod; 9. Protective net. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] A safe operation platform for shaft excavation support construction includes a protective top plate 1, an excavator platform 2 and multiple I-beams 3. The protective top plate 1 is connected with a conduit 4. The lower end of the conduit 4 is close to the excavator platform 2. A screw conveyor 5 is sleeved in the conduit 4. The screw conveyor 5 is fixed on the protective top plate 1. A sliding channel is reserved between the screw conveyor 5 and the conduit 4. The protective top plate 1 and the excavator platform 2 are both annularly distributed with multiple retractable and adjustable support wheels 6, and the protective top plate 1 is annularly distributed with multiple lifting ears 101.

[0029] Reference Figure 1-Figure 4 The protective top plate 1 and the excavator platform 2 are fixedly connected by multiple I-beams 3, the hook of the gantry crane is hung with cables on four lifting ears 101, the small excavator is installed on the excavator platform 2, and then the device is hoisted into the shaft, and the side wall of the shaft is expanded by controlling the small excavator. When rockfall occurs, the rockfall falls on the protective top plate 1 and falls on the excavator platform 2 through the guide tube 4. The slag excavated by the small excavator is placed on the conveying end of the screw conveyor 5, and the excavated slag is lifted to the ground by the screw conveyor 5 to facilitate the cleaning of the slag. At the same time, there is no need to clean the slag on the protective top plate 1, which improves the slag cleaning efficiency, and through the telescopic adjustment of multiple supporting wheels 6, the supporting wheels 6 are supported on the inner wall of the shaft, one is to reduce the friction with the shaft wall, and the other is to improve the stability of the whole when lowering, to prevent shaking in the shaft and collision with the shaft wall.

[0030] The protective top plate 1 is an inverted conical structure, a groove 201 is opened on the excavator platform 2, and the screw conveyor 5 includes an outer tube 501, a discharge pipe 502 perpendicular to and connected to the outer tube 501, an auger 503 rotatably arranged in the outer tube 501, and a motor 504 transmission-connected to the auger 503.

[0031] Reference Figure 2 and Figure 4The motor 504 is fixed on the outer tube 501, and the output shaft of the motor 504 is coaxially fixed with the shaft of the auger 503. The inverted conical structure of the protective top plate 1 can guide the fallen debris to the direction of the guide tube 4, and the lower end of the auger 503 is placed at the low point of the groove 201. The debris dug out by the small excavator is poured into the groove 201, and then the auger 503 is driven by the motor 504 to rotate, the debris is lifted and discharged through the discharge pipe 502. The length of the discharge pipe 502 is greater than the radius of the shaft, so that the debris can be directly transported to the ground.

[0032] A plurality of fixing rods 7 are fixedly installed between the outer tube 501 and the protective top plate 1 , and a plurality of annularly distributed inclined tie rods 8 are fixedly installed between the top of the outer tube 501 and the protective top plate 1 .

[0033] Reference Figure 1 The outer tube 501 is fixed on the protective top plate 1 through multiple fixing rods 7 and inclined rods 8.

[0034] A protective net 9 with an open structure on one side is fixed between the protective top plate 1 and the excavator platform 2 .

[0035] Reference Figure 1 The local area between the protective top plate 1 and the excavator platform 2 is protected by a protective net 9 to reduce the risk of falling rocks from between the protective top plate 1 and the excavator platform 2 and injuring operators, and the opening is used to facilitate the operation of a small excavator.

[0036] The supporting wheel 6 comprises a sleeve 601 , an insertion rod 602 slidably inserted in the sleeve 601 , and a roller 603 rotatably connected to the insertion rod 602 . A locking screw 6011 abutting against the insertion rod 602 is threadedly connected to the sleeve 601 .

[0037] Reference Figure 1 and Figure 3 A plurality of sleeves 601 are annularly fixed on the protective top plate 1 and the excavator platform 2, and are rotatably connected to the insertion rod 602 through the roller 603 axis. The support area of ​​the roller 603 is adjusted by sliding and inserting the insertion rod 602 and the sleeve 601, and finally fixed by the locking screw 6011.

[0038] Working principle: the protective top plate 1 and the excavator platform 2 are fixedly connected by multiple I-beams 3, the hook of the gantry crane is hung with cables on four lifting ears 101, and the small excavator is installed on the excavator platform 2. The sliding adjustment of the rod 602 and the sleeve 601 makes the roller 603 abut against the inner wall of the shaft, and then the device is hoisted into the shaft, and the side wall of the shaft is expanded by controlling the small excavator. When rocks fall, they fall onto the protective top plate 1 and fall onto the groove 201 of the excavator platform 2 through the guide tube 4. The debris excavated by the small excavator is placed in the groove 201, and the motor 504 drives the auger 503 to rotate, lifts the debris and discharges it through the discharge pipe 502, and then the debris can be directly transported to the ground.

Claims

1. A safe operation platform for shaft excavation support construction, characterized by: The invention comprises a protective top plate (1), an excavator platform (2) and a plurality of I-beams (3); the protective top plate (1) is connected with a conduit (4); the lower end of the conduit (4) is close to the excavator platform (2); a screw conveyor (5) is sleeved in the conduit (4); the screw conveyor (5) is fixed on the protective top plate (1); a sliding channel is reserved between the screw conveyor (5) and the conduit (4); the protective top plate (1) and the excavator platform (2) are both provided with a plurality of retractable and adjustable support wheels (6) in an annular manner; and a plurality of lifting ears (101) are provided in an annular manner on the protective top plate (1).

2. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: The protective top plate (1) is an inverted conical structure, the excavator platform (2) is provided with a groove (201), and the screw conveyor (5) comprises an outer tube (501), a discharge pipe (502) vertically connected to and through the outer tube (501), an auger (503) rotatably arranged in the outer tube (501), and a motor (504) drivingly connected to the auger (503).

3. A safe operation platform for shaft excavation support construction according to claim 2, characterized in that: A plurality of fixing rods (7) are fixedly installed between the outer tube (501) and the protective top plate (1), and a plurality of annularly distributed inclined rods (8) are fixedly installed between the top of the outer tube (501) and the protective top plate (1).

4. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: A protective net (9) having an open structure on one side is fixed between the protective top plate (1) and the excavator platform (2).

5. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: The support wheel (6) comprises a sleeve (601), an insertion rod (602) slidably inserted into the sleeve (601), and a roller (603) rotatably connected to the insertion rod (602); a locking screw (6011) abutting against the insertion rod (602) is threadedly connected to the sleeve (601).

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