Variable-diameter hanging scaffold for freezing method vertical shaft construction

Abstract

The utility model discloses a variable-diameter hanging scaffold for freezing method vertical shaft construction, which relates to the technical field of vertical shaft construction and comprises two fixed discs arranged in parallel, a support component arranged between the two fixed discs, a driving component arranged in the fixed discs, a movable ring arranged outside the fixed discs in a surrounding manner and capable of sliding in the fixed discs and fixedly connected with the driving component. The stabilizing assembly is arranged on the movable ring; according to the variable-diameter hanging scaffold for freezing method vertical shaft construction, the change of the diameter of the hanging scaffold can be realized, so that the requirements of different construction stages and shaft diameter change are met, the construction cost is reduced, the time increased by replacing hanging scaffolds with different diameters is avoided, and the smooth construction is ensured.

Description

Technical Field

[0001] This utility model relates to the field of shaft construction technology, specifically a variable diameter lifting platform for shaft construction using the freezing method. Background Technology

[0002] Shaft freezing is a commonly used technique in underground engineering, especially when traversing aquifers or soft strata. It involves freezing the surrounding soil to form a frozen wall, ensuring the stability and safety of the shaft excavation. The hoisting platform is a crucial piece of equipment in shaft construction, used to support construction materials and personnel; its stability and adaptability directly affect construction efficiency and safety.

[0003] In actual vertical shaft construction using the freezing method, the diameter of the shaft may need to be changed due to variations in geological conditions and adjustments to construction techniques. If different freezing wall thicknesses and phased adjustments to the shaft diameter are required, using a fixed-diameter hoisting platform can easily lead to limited working space, inconvenient material handling, and blind spots in safety protection. To meet the needs of construction on different cross-sections, hoisting platforms of different diameters must be fabricated separately, requiring multiple disassembly and replacements during the vertical shaft construction process. This results in long processing times, high costs, and can also affect the construction progress, even causing delays. Utility Model Content

[0004] The purpose of this invention is to provide a variable-diameter hanging platform for vertical shaft construction using the freezing method. This variable-diameter hanging platform can change its diameter to adapt to different construction stages and changes in shaft diameter, thereby reducing construction costs and avoiding the time added by replacing hanging platforms of different diameters, thus ensuring the smooth progress of construction.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a variable diameter lifting platform for vertical shaft construction using the freezing method, comprising two parallel fixed plates;

[0006] A support assembly disposed between the two fixed disks;

[0007] A drive assembly, wherein the drive assembly is disposed within the fixed disk;

[0008] A movable ring is arranged around the fixed disk and can slide inside the fixed disk; the movable ring is fixedly connected to the drive assembly.

[0009] A stabilizing component is disposed on the movable ring.

[0010] In some embodiments, the fixed disk includes a disk body;

[0011] A flared mouth tube, the flared mouth tube penetrating the disc body;

[0012] Multiple placement cavities are arranged in a ring and are equipped with the driving assembly;

[0013] A sliding ring groove is coaxially disposed on the edge of the disc body, and the movable ring is disposed inside the sliding ring groove. The sliding ring groove is also connected to multiple placement cavities.

[0014] In some embodiments, the drive assembly includes a plurality of drive cylinders disposed within the placement cavity, and the output shaft of the drive cylinder is fixedly connected to the movable ring.

[0015] In some embodiments, the movable ring includes a plurality of arc-shaped blocks arranged in a ring shape, and the arc-shaped blocks are slidably disposed within the sliding ring groove and connected to the driving component.

[0016] In some embodiments, the movable ring further includes a connecting half-groove, which is disposed on both side walls of the arc-shaped block;

[0017] A connecting block, which is slidably disposed within two adjacent connecting half-grooves.

[0018] In some embodiments, the movable ring further includes a plurality of adjusting arc grooves, which are disposed at both ends of the bottom wall of the connecting half groove;

[0019] An adjusting rod is provided through the corner of the connecting block, and the adjusting rod can slide along the adjusting arc groove.

[0020] In some embodiments, the stabilizing component includes a fixing frame disposed on the movable ring;

[0021] A stabilizing wheel is rotatably mounted on the fixed frame, and the stabilizing wheel protrudes from the outer edge of the movable ring.

[0022] In some embodiments, the stabilizing assembly further includes a rotating frame, the bottom of which is hinged to the end of the fixed frame away from the fixed plate, and the top of the rotating frame is provided with a rotatable stabilizing wheel;

[0023] An adjusting cylinder is hinged to one end of the fixed frame near the fixed plate, and the output shaft of the adjusting cylinder is hinged to the rotating frame.

[0024] In summary, this utility model has the following beneficial effects:

[0025] This type of variable-diameter lifting platform for vertical shaft construction using the freezing method uses a drive assembly to push a movable ring that slides within a sliding ring groove. This allows for changes in the platform's diameter, adapting to different construction stages and varying wellbore diameters. This reduces construction costs, avoids the time-consuming process of replacing platforms with different diameters, ensures smooth construction, and improves efficiency. Simultaneously, a stabilizing component on the movable ring ensures the stabilizing wheel contacts the wellbore wall, providing stable support and preventing platform displacement or swaying, thus enhancing construction safety. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a top view of the present invention;

[0029] Figure 4 This is a cross-sectional view showing the connection between the fixed disk, the drive assembly, and the movable ring of this utility model.

[0030] Figure 5 This is a cross-sectional view of the utility model.

[0031] In the diagram: 1. Fixed plate; 11. Plate body; 12. Trumpet-shaped mouth tube; 13. Placement cavity; 14. Sliding ring groove; 2. Support assembly; 3. Drive assembly; 4. Movable ring; 41. Arc block; 42. Connecting half groove; 43. Connecting block; 44. Adjusting arc groove; 45. Adjusting rod; 5. Stabilizing assembly; 51. Fixed frame; 52. Stabilizing wheel; 53. Rotating frame; 54. Adjusting cylinder. Detailed Implementation

[0032] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] refer to Figure 1-5A variable-diameter hoisting platform for vertical shaft construction using the freezing method includes two parallel fixed platforms 1, a support assembly 2, a drive assembly 3, a movable ring 4, and a stabilizing assembly 5. The fixed platforms 1 form the main structure of the hoisting platform, used to support construction materials and personnel. The fixed platforms 1 can be connected to external equipment via steel wire ropes, thereby enabling the hoisting platform to rise and fall within the shaft. The support assembly 2 is located between the two fixed platforms 1, providing a fixed connection between them and stable support to ensure the overall stability of the hoisting platform. The support assembly 2 can consist of multiple steel beams or multiple vertical shafts. The material and structural design of the column can be selected according to the load-bearing capacity and stability requirements of the hoisting platform. The drive component 3 is located inside the fixed plate 1, and the movable ring 4 is located outside the fixed plate 1 and can slide inside the fixed plate 1. The movable ring 4 is fixedly connected to the drive component 3. The drive component 3 provides driving force to drive the movable ring 4 to slide, thereby realizing the adjustment of the hoisting platform diameter. The stabilizing component 5 is located on the movable ring 4, which can enhance the support strength between the hoisting platform and the shaft, prevent the hoisting platform from shifting or shaking during construction, and thus improve the stability of the hoisting platform in the shaft.

[0034] In some embodiments, the fixed disk 1 includes a disk body 11, a flared nozzle 12, multiple placement cavities 13, and a sliding annular groove 14. The disk body 11 is the main body of the fixed disk 1 and is used to connect the support assembly 2 and the drive assembly 3. The flared nozzle 12 penetrates the disk body 11 and is used to install and fix related equipment, while facilitating the passage of construction materials and personnel. The multiple placement cavities 13 are arranged in a ring shape within the disk body 11 for installing the drive assembly 3. The sliding annular groove 14 is coaxially located at the edge of the disk body 11 for installing a movable ring 4 and communicates with the multiple placement cavities 13 to ensure that the drive assembly 3 can smoothly drive the movable ring 4 to slide within the sliding annular groove 14.

[0035] In some embodiments, the drive assembly 3 includes a plurality of drive cylinders disposed within the placement cavity 13, and their output shafts are fixedly connected to the movable ring 4. By controlling the extension and retraction of the drive cylinders, the movable ring 4 can be driven to slide within the sliding ring groove 14, thereby achieving adjustment of the hanging plate diameter.

[0036] In some embodiments, the movable ring 4 includes multiple arc-shaped blocks 41. The number, thickness, and curvature of the arc-shaped blocks 41 can be adjusted according to actual usage conditions. The angle of the arc of each arc-shaped block 41 can be obtained by dividing 360 by the number of arc-shaped blocks 41. The arc-shaped blocks 41 can be made of Q345E low-temperature alloy steel to suit the low-temperature environment during construction. The multiple arc-shaped blocks 41 are arranged in a ring shape and are slidably disposed in the sliding ring groove 14 and connected to the drive assembly 3. Driven by the drive assembly 3, the movable ring 4 can slide in the sliding ring groove 14, thereby adjusting the protruding area of ​​the outer edge of the fixed plate 1, and thus realizing the adjustment of the overall diameter of the hanging plate.

[0037] In some embodiments, to further enhance the stability and flexibility of the movable ring 4, the movable ring 4 also includes connecting half-grooves 42 and connecting blocks 43. The connecting half-grooves 42 are disposed on both side walls of the arc-shaped block 41, and the connecting blocks 43 are slidably disposed within adjacent connecting half-grooves 42. Through the connecting blocks 43, when the arc-shaped block 41 slides outward, adjacent connecting blocks 43 can connect with each other and remain stable, forming a complete movable ring 4, while allowing a certain degree of relative sliding to accommodate changes in the diameter of the hanging plate.

[0038] In some embodiments, the movable ring 4 further includes multiple adjusting arc grooves 44 and adjusting rods 45. The adjusting arc grooves 44 are located at both ends of the bottom wall of the connecting half-groove 42, and the adjusting rods 45 are inserted through the corner of the connecting block 43 and can slide along the adjusting arc grooves 44. By sliding the adjusting rods 45, during the sliding of the arc-shaped block 41, the adjusting rods 45 slide along the adjusting arc grooves 44, thereby causing the connecting block 43 to slide between two adjacent connecting half-grooves 42, to accommodate the sliding of the arc-shaped block 41 under different diameter hanging platforms, maintaining the stability and support capacity of the hanging platform.

[0039] In some embodiments, the stabilizing component 5 includes a fixed frame 51 and a stabilizing wheel 52. The fixed frame 51 is mounted on the movable ring 4, and the stabilizing wheel 52 is rotatably mounted on the fixed frame 51, protruding from the outer edge of the movable ring 4. The stabilizing wheel 52 enables contact between the hoisting platform and the well wall. The pressure exerted by the well wall on the stabilizing wheel 52 provides support for the hoisting platform, thereby improving its stability in the vertical shaft. Simultaneously, the rotation of the stabilizing wheel 52 reduces friction with the well wall, lowering resistance during the hoisting platform's lifting and lowering process. The stabilizing wheel 52 can be made of wear-resistant rubber, reducing the risk of damage to the well wall.

[0040] In some embodiments, to further enhance the flexibility and adaptability of the stabilizing assembly 5, the stabilizing assembly 5 also includes a rotating frame 53 and an adjusting cylinder 54. The bottom of the rotating frame 53 is hinged to the end of the fixed frame 51 away from the fixed plate 1, and the top of the rotating frame 53 is provided with a rotatable stabilizing wheel 52. The adjusting cylinder 54 is hinged to the end of the fixed frame 51 near the fixed plate 1, and the output shaft of the adjusting cylinder 54 is hinged to the rotating frame 53. By adjusting the extension and retraction of the cylinder 54, the rotating frame 53 and the stabilizing wheel 52 can be driven to rotate and tilt to adapt to well walls of different angles and inclinations, further improving the stability and support capacity of the hoisting platform.

[0041] The specific working principle is as follows:

[0042] During the construction of the vertical shaft, the diameter of the hoisting platform needs to be changed according to the design requirements of the shaft, changes in geological conditions, or adjustments to the construction process. The hoisting platform can be connected to the external drive device through 6 steel wire ropes, and then the hoisting platform is placed in the vertical shaft and lowered to the set position.

[0043] The operator controls the extension and retraction of the drive cylinder in the drive assembly 3 by increasing or decreasing the diameter according to the direction of the diameter change. When it is necessary to increase the diameter of the lifting platform, the output shaft of the drive cylinder extends, pushing the arc block 41 to slide outward in the sliding ring groove 14; when it is necessary to decrease the diameter of the lifting platform, the output shaft of the drive cylinder retracts, pulling the arc block 41 to slide inward.

[0044] Once the diameter of the hoisting platform reaches the set value, the stabilizing component 5 is adjusted. By adjusting the extension and retraction of the cylinder 54, the angle of the rotating frame 53 is adjusted, causing the stabilizing wheel 52 to contact the shaft wall and apply a certain pressure. By adjusting the angle of the rotating frame 53, the length of the protruding movable ring 4 of the stabilizing wheel 52 can be changed, thereby changing the normal pressure on the shaft wall, adjusting the friction between the stabilizing wheel 52 and the shaft wall, and thus ensuring the stability of the hoisting platform in the vertical shaft.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A variable-diameter lifting platform for vertical shaft construction using the freezing method, characterized in that: Includes two parallel fixed disks (1); Support component (2), which is disposed between the two fixed disks (1); Drive component (3), the drive component (3) is disposed inside the fixed disk (1); The movable ring (4) surrounds the fixed disk (1) and can slide inside the fixed disk (1). The movable ring (4) is fixedly connected to the drive assembly (3). A stabilizing component (5) is disposed on the movable ring (4).

2. The variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 1, characterized in that: The fixed disk (1) includes a disk body (11); A flared mouth tube (12) penetrates the disc body (11). Multiple placement cavities (13) are arranged in a ring and are provided with the drive assembly (3). A sliding ring groove (14) is coaxially disposed on the edge of the disc body (11). The sliding ring groove (14) contains the movable ring (4), and the sliding ring groove (14) is connected to multiple placement cavities (13).

3. The variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 2, characterized in that: The drive assembly (3) includes multiple drive cylinders, which are disposed in the placement cavity (13), and the output shaft of the drive cylinder is fixedly connected to the movable ring (4).

4. The variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 2, characterized in that: The active ring (4) includes multiple arc-shaped blocks (41), which are arranged in a ring shape. The arc-shaped blocks (41) are slidably disposed in the sliding ring groove (14) and connected to the driving component (3).

5. A variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 4, characterized in that: The movable ring (4) also includes a connecting half groove (42), which is provided on both sides of the arc-shaped block (41); Connecting block (43), which is slidably disposed in two adjacent connecting half slots (42).

6. A variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 5, characterized in that: The movable ring (4) also includes a plurality of adjusting arc grooves (44), which are located at both ends of the bottom wall of the connecting half groove (42); An adjusting rod (45) is provided through the corner of the connecting block (43), and the adjusting rod (45) can slide along the adjusting arc groove (44).

7. A variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 1, characterized in that: The stabilizing component (5) includes a fixing frame (51) which is disposed on the movable ring (4); The stabilizing wheel (52) is rotatably mounted on the fixed frame (51) and protrudes from the outer edge of the movable ring (4).

8. A variable-diameter lifting platform for vertical shaft construction using the freezing method according to claim 7, characterized in that: The stabilizing component (5) also includes a rotating frame (53), the bottom of which is hinged to the fixed frame (51) at the end away from the fixed plate (1), and the top of the rotating frame (53) is provided with a rotatable stabilizing wheel (52). Adjusting cylinder (54), the adjusting cylinder (54) is hinged to the fixed frame (51) at one end near the fixed plate (1), and the output shaft of the adjusting cylinder (54) is hinged to the rotating frame (53).

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