Manned suspension cage for expanding excavation construction of deep shaft

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a deep shaft expanding excavation construction manned suspension cage which comprises a top plate and a bottom plate which are coaxially arranged, a plurality of reinforcing steel bars which are arranged at equal intervals in the circumferential direction, the bottoms of the reinforcing steel bars are fixedly connected with the bottom plate, and the tops of the reinforcing steel bars are fixedly connected with the top plate. The top of the support is in transmission connection with ground lifting equipment through a cable. A manhole is formed in the top plate beside the bracket; and a climbing ladder of which the bottom is fixedly connected with the bottom plate is arranged at the manhole on the bottom surface of the top plate. The cage has a simple structure, is improved on the basis of the structure of the cage in the prior art, can ensure that the cage-releasing escape path of deep well operating personnel is smooth, and improves the safety of deep well operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, in particular to a manned hanging cage for deep shaft expansion construction. Background Art

[0002] During the construction of a hydropower station, deep shaft construction requires manned personnel to perform deep-depth hanging operations, which is often a major risk point in the project. In the prior art, the deep shaft manned hoist cage for workers is composed of a wire rope and a cage. The top of the cage is closed and connected to the wire rope. Although the protective effect is good, during the deep shaft expansion construction, the cage is prone to uneven radial force, causing shaking and causing the wire rope to be entangled and knotted, making it difficult or impossible to lift in the later stage and trapping the construction workers in the cage underground and unable to escape. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a manned cage for deep shaft expansion construction. The utility model has a simple structure and improves the structure of the cage in the prior art, which can ensure that the deep well workers have a clear escape path from the cage and improve the safety of deep well operations.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A manned cage for deep shaft expansion construction, the cage comprises two coaxially arranged top plates and bottom plates, a plurality of circumferentially equally spaced steel bars are fixedly connected to the bottom plates at the bottom and the top plates at the top, a bracket is provided at the center of the top surface of the top plate, and the top of the bracket is connected to the lifting equipment on the ground through a cable;

[0006] A manhole is provided on the top plate beside the bracket, and a climbing ladder with a bottom fixedly connected to the bottom plate is provided on the bottom surface of the top plate at the manhole.

[0007] Preferably, the top end of the steel bar penetrates through the top plate and is exposed to the outside to form a guardrail structure, the top plate and the steel bars thereon form a manned space with an open top, and the top plate, bottom plate and the steel bars therebetween form a working space.

[0008] Preferably, two symmetrically distributed and radially extending anchor rods are provided on the bottom surface of the top plate beside the climbing ladder, and the anchor rods are slidably matched with preset through holes of the support plate fixed on the bottom surface of the top plate.

[0009] Preferably, a push plate with an isosceles triangle plate structure is provided between the two anchor rods, and the two oblique sides of the push plate contact the corresponding ends of the anchor rods. A screw is fixed on the top of the push plate, and the screw passes through the top plate and is connected to the driving mechanism.

[0010] Preferably, the top plate body is provided with a long hole for the screw rod and the push plate to pass through.

[0011] Preferably, the driving mechanism includes a threaded cylinder screwed with the screw rod. The threaded cylinder is assembled with the bearing on the support rod, and a driven gear is provided on the outer wall of the bottom end of the threaded cylinder exposed below the support rod. Both ends of the support rod are connected to the support.

[0012] A motor is also provided on the support rod. The output end of the motor penetrates through the support rod and is in transmission connection with the driving gear, and the driving gear meshes with the driven gear.

[0013] The working process of the present utility model is as follows:

[0014] First, place the present utility model at the wellhead of the deep well. The staff who needs to go down the well can enter the manned space and be protected by the guardrail structure. Then start the external lifting equipment to lower the cable, so that the present utility model and the corresponding staff move to the target operation position. Then the staff enters the operation space through the manhole and the climbing ladder on the top plate (a cover plate can be hinged at the manhole or a net can be set, so that after the staff passes through the manhole, the cover plate or the net can cover the manhole) to carry out the excavation operation. During the operation, the top plate can provide protection for the staff to prevent sundries such as soil blocks accidentally falling in the deep well from hitting the staff. At the same time, when the cable is wound and jammed or other accidents occur, resulting in the present utility model being unable to move up smoothly, the staff in the operation space can return to the manned space from the manhole. Since the top of the manned space is open, the ground personnel can lift and rescue the underground personnel to the ground by releasing a new cable or safety rope.

[0015] In order to further improve the stability of the present utility model after reaching the target position, the staff can control the motor to start. The motor drives through the meshing of the driving gear and the driven gear, so that the threaded cylinder rotates relative to the support, and then the screw rod moves upward and drives the push plate to move upward. During the upward movement of the push plate, the hypotenuse is used to push the anchor rod to move radially outward and insert into the shaft wall of the vertical shaft, thereby stabilizing the instant position of the present utility model and preventing the present utility model from accidentally falling. When the present utility model needs to be moved, the staff controls the push plate to reset, and then the anchor rod is separated from the shaft wall and reset.

[0016] Compared with the prior art, the present utility model has the following advantages: The structure of the present utility model is simple, which can effectively ensure the stable state of the present utility model in the working position. At the same time, it gives the staff an escape space in case of accidents, greatly improving the safety of deep well operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the manned cage described in the specific embodiment;

[0018] Figure 2 It is a schematic structural diagram of the top plate of the manned cage described in the specific embodiment;

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the top plate shown. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] like Figures 1-3 As shown, a manned cage for deep shaft expansion construction, the cage comprises two coaxially arranged top plates 1 and bottom plates 2, a plurality of circumferentially evenly spaced steel bars 3 are fixedly connected to the bottom plates 2 at the bottom and to the top plates 1 at the top, the top ends of the steel bars 3 penetrate through the top plates 1 and are exposed to the outside to form a guardrail structure, the top plates 1 and the steel bars 3 above them form a manned space with an open top, and the top plates 1, the bottom plates 2 and the steel bars 3 therebetween form a working space;

[0022] A bracket 4 is provided at the center of the top surface of the top plate 1, and the top of the bracket 4 is connected to the lifting equipment on the ground through a cable 5;

[0023] A manhole 11 is provided on the top plate 1 beside the bracket 4, and a climbing ladder 21 whose bottom is fixedly connected to the bottom plate 2 is provided on the bottom surface of the top plate 1 at the manhole 11. Two symmetrically distributed and radially extending anchor rods 14 are also provided on the bottom surface of the top plate 1 beside the climbing ladder 21. The anchor rods 14 slide in conjunction with preset through holes of a support plate 13 fixedly provided on the bottom surface of the top plate 1. A push plate 6 with an isosceles triangle plate structure is provided between the two anchor rods 14. The two oblique sides of the push plate 6 contact the corresponding ends of the anchor rod 14, and a screw 61 is fixed on the top of the push plate 6. A long hole 12 is provided on the plate body of the top plate 1 for the screw 61 and the push plate 6 to pass through. After the screw 61 passes through the long hole 12, it is screwed with a threaded barrel 45. The threaded barrel 45 is assembled with a bearing 46 on the support rod 41, and a driven gear 44 is provided on the outer wall of the bottom end of the threaded barrel 45 exposed below the support rod 41. Both ends of the support rod 41 are connected to the bracket 4. The support rod 41 is also provided with a motor 42 , and the output end of the motor 42 passes through the support rod 41 and is transmission-connected with a driving gear 43 , and the driving gear 43 is meshed with a driven gear 44 .

[0024] The working process of this utility model is as follows:

[0025] First, place the present utility model at the wellhead of the deep well. The staff members who need to go down the well can enter the manned space and be protected by the guardrail structure. Then, start the external lifting equipment to lower the cable 5, so that the present utility model together with the corresponding staff members moves to the target working position. Then, the staff members enter the working space through the manhole 11 on the top plate 1 and the climbing ladder 21 (a cover plate can be hinged at the manhole 11 or a net can be set, so that the staff members can cover the manhole 11 with the cover plate or the net after passing through the manhole) to carry out the excavation operation. During the operation, the top plate 1 can provide protection for the staff members to prevent sundries such as soil blocks accidentally falling from the deep well from hitting the staff members. At the same time, when the cable 5 is entangled and jammed or other unexpected situations cause the present utility model to be unable to move up smoothly, the staff members in the working space can return from the manhole 11 to the manned space. Since the top of the manned space is open, the ground personnel can lift and rescue the underground personnel to the ground by releasing a new cable or safety rope.

[0026] To further improve the stability of the present utility model after reaching the target position, the staff members can control the motor 42 to start. The motor 42 drives through the meshing of the driving gear 43 and the driven gear 44, so that the threaded cylinder 45 rotates relative to the bracket 41, and then the screw rod 61 moves upward and drives the push plate 6 to move upward. During the upward movement of the push plate 6, the hypotenuse is used to push the anchor rod 14 to move radially outward and insert into the shaft wall of the vertical shaft, so as to stabilize the immediate position of the present utility model and prevent the present utility model from accidentally falling. When it is necessary to move the present utility model, the staff members control the push plate 6 to reset, and then the anchor rod 14 is separated from the shaft wall and reset.

Claims

1. A manned cage for deep shaft expansion construction, characterized in that: The cage comprises two coaxially arranged top and bottom plates, a number of steel bars arranged at equal intervals in the circumferential direction are fixedly connected to the bottom plate at the bottom and to the top plate at the top, a bracket is provided at the center of the top surface of the top plate, and the top of the bracket is connected to the lifting equipment on the ground through a cable; A manhole is provided on the top plate beside the bracket, and a climbing ladder with a bottom fixedly connected to the bottom plate is provided on the bottom surface of the top plate at the manhole.

2. The manned cage for deep shaft expansion construction as claimed in claim 1, characterized in that: The top end of the steel bar penetrates through the top plate and is exposed to the outside to form a guardrail structure. The top plate and the steel bars thereon form a manned space with an open top. The top plate, the bottom plate and the steel bars therebetween form a working space.

3. The manned cage for deep shaft expansion construction as claimed in claim 1, characterized in that: The bottom surface of the top plate is also provided with two symmetrically distributed and radially extending anchor rods beside the climbing ladder, and the anchor rods are slidably matched with preset through holes of the support plate fixed on the bottom surface of the top plate.

4. The manned cage for deep shaft expansion construction as claimed in claim 3, characterized in that: A push plate with an isosceles triangle plate structure is arranged between the two anchor rods, and the two oblique sides of the push plate contact the corresponding ends of the anchor rods. A screw is fixed on the top of the push plate, and the screw penetrates the top plate and is connected to the driving mechanism.

5. The manned cage for deep shaft expansion construction as claimed in claim 4, characterized in that: The top plate body is provided with a long hole for the screw rod and the push plate to pass through.

6. The manned cage for deep shaft expansion construction as claimed in claim 5, characterized in that: The driving mechanism comprises a threaded barrel threadedly matched with the screw rod, the threaded barrel is assembled with the bearing on the support rod, and the outer wall of the bottom end of the threaded barrel exposed below the support rod is provided with a driven gear, and the two ends of the support rod are connected to the bracket; The support rod is also provided with a motor, the output end of the motor penetrates the support rod and is transmission-connected with a driving gear, and the driving gear is meshed with a driven gear.

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