Maintenance well supporting structure

Abstract

The utility model relates to a maintenance well supporting structure which comprises an annular ring beam and a supporting assembly and is characterized in that the supporting assembly comprises two longitudinal supporting columns, a transverse adjusting piece connected between the two longitudinal supporting columns and radial adjustable pieces arranged on the peripheries of the longitudinal supporting columns, and a plurality of cambered surface supporting plates are evenly connected to the inner circumferential face of the annular ring beam in a hung mode. A longitudinal T-shaped joint plate is arranged between every two adjacent cambered surface supporting plates, the radial adjustable part comprises a connecting lug base integrated with the longitudinal supporting column, a hollow supporting arm hinged to the connecting lug base, an adjusting connecting rod connected with the other end of the hollow supporting arm and a T-shaped supporting base connected with the other end of the adjusting connecting rod, and the T-shaped supporting base is fixedly connected with the inner surfaces of the cambered surface supporting plates. The transverse adjusting piece comprises a transverse adjusting rod and thickening tables arranged on the opposite sides of the two longitudinal supporting columns and in threaded connection with the two ends of the transverse adjusting rod, and threaded holes communicated with inner cavities of the longitudinal supporting columns are formed in the centers of the thickening tables. The structure is convenient to mount and dismount, high in repeated utilization rate, short in construction period and high in construction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole construction structures, and particularly relates to a manhole support structure. Background Art

[0002] After the excavation of a manhole, the traditional method usually uses a steel bar grid and concrete shotcrete to support the well wall. However, this support structure has a long construction period, high cost, and the solid waste generated is not easy to recycle, which is likely to affect the soil environment.

[0003] Based on the above disadvantages, CN 109681209 A discloses a manhole support structure, which includes a circular ring beam, a plurality of longitudinal connecting columns, and a first support body, a second support body, and a third support body of a closed circular structure that are sequentially arranged along the inner wall of the manhole from the wellhead downwards. A part of the first support body is exposed out of the wellhead, the circular ring beam is sleeved on the outer wall of the part of the first support body exposed out of the wellhead, and the exposed end of the circular ring beam is flush with the end face of the exposed end of the first support body. The plurality of longitudinal connecting columns are arranged circumferentially along the inner wall of the manhole and are sequentially fixed to the inner walls of the first support body, the second support body, and the third support body in the longitudinal direction of the manhole. This structure aims to shorten the production cycle, improve the construction efficiency, and reduce the construction cost. However, there are still the following problems: poor integrity, still relatively troublesome to install and disassemble, and the construction efficiency still needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a manhole support structure with reasonable structure and reliable use to solve the above problems, which is convenient for installation and disassembly, has a high reuse rate, a short construction period, and high construction efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] A manhole support structure includes a circular ring beam at the wellhead and a support assembly arranged in the well. The technical key point is that: the support assembly includes two longitudinal columns, a transverse adjusting member connected between the two longitudinal columns, and a radially adjustable member arranged on the outer periphery of the longitudinal columns. A plurality of arc-shaped support plates are evenly hung on the inner peripheral surface of the circular ring beam, and a longitudinal T-shaped joint plate is arranged between adjacent two arc-shaped support plates. The radially adjustable member includes a connecting ear seat integrated with the longitudinal column, a hollow support arm hinged to the connecting ear seat, an adjusting connecting rod threadedly connected to the other end of the hollow support arm, and a T-shaped support seat threadedly connected to the other end of the adjusting connecting rod. The T-shaped support seat is fixedly connected to the inner surface of the arc-shaped support plate. The transverse adjusting member includes a transverse adjusting rod and thickening platforms arranged on the opposite sides of the two longitudinal columns and threadedly connected to both ends of the transverse adjusting rod. A threaded hole communicating with the inner cavity of the longitudinal column is arranged at the center of the thickening platform.

[0007] For the above inspection well support structure, the number of groups of radially adjustable members around the outer circumference of the same longitudinal pillar is 3, which are arranged on the opposite sides of the transverse adjusting member. The included angles between adjacent two groups of radially adjustable members on the same longitudinal pillar are equal, and each radially adjustable member in the same group of radially adjustable members is evenly arranged along the axial direction of the longitudinal pillar.

[0008] For the above inspection well support structure, the number of the transverse adjusting members is multiple, and they are evenly arranged along the axial direction of the longitudinal pillar.

[0009] For the above inspection well support structure, the center lines of the hollow support arm and the T-shaped support seat coincide, and radial positioning screws are provided thereon.

[0010] For the above inspection well support structure, radial positioning screws are provided on the thickening platform.

[0011] For the above inspection well support structure, the adjusting connecting rod is a screw rod with a smooth rod in the middle section, and the thread rotation directions of the screw rod sections on both sides of the smooth rod are opposite.

[0012] For the above inspection well support structure, the transverse adjusting rod is a screw rod with a smooth rod in the middle section, and the thread rotation directions of the screw rod sections on both sides of the smooth rod are opposite.

[0013] For the above inspection well support structure, a horizontal flanging which is connected and fixed to the upper surface of the annular ring beam is provided at the upper edge of the arc-shaped support plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By using two longitudinal pillars, each transverse adjusting member and each radially adjustable member, radial positioning of each arc-shaped support plate is realized, so as to realize radial extrusion positioning of the inner wall of the inspection well, and stable support is achieved. At the same time, compared with the prior art, the adjustment is fast, the installation and disassembly are convenient, the reuse rate is high, the construction period is short, and the construction efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model.

[0017] In the figure: 1. annular ring beam, 2. arc-shaped support plate, 3. T-shaped support seat, 4. longitudinal T-shaped joint plate, 5. adjusting connecting rod, 6. hollow support arm, 7. connecting ear seat, 8. longitudinal pillar, 9. transverse adjusting rod, 10. thickening platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be described in detail according to the accompanying drawings of the specification.

[0019] As Figure 1 shown, the inspection well support structure includes an annular ring beam 1 located at the wellhead and a support assembly arranged in the well.

[0020] Among them, the support assembly includes two longitudinal struts 8, a transverse adjusting member connected between the two longitudinal struts 8, and a radially adjustable member disposed on the outer periphery of the longitudinal struts 8. A plurality of arc-shaped support plates 2 are evenly hung on the inner peripheral surface of the annular ring beam 1, and a longitudinal T-shaped joint plate 4 is provided between two adjacent arc-shaped support plates 2. The radially adjustable member includes a connecting ear seat 7 integrated with the longitudinal strut 8, a hollow support arm 6 hinged to the connecting ear seat 7, an adjusting link 5 threadedly connected to the other end of the hollow support arm 6, and a T-shaped support base 3 threadedly connected to the other end of the adjusting link 5. The T-shaped support base 3 is fixedly connected to the inner surface of the arc-shaped support plate 2. The transverse adjusting member includes a transverse adjusting rod 9 and thickening platforms 10 disposed on opposite sides of the two longitudinal struts 8 and threadedly connected to both ends of the transverse adjusting rod 9. A threaded hole communicating with the inner cavity of the longitudinal strut 8 is provided at the center of the thickening platform 10.

[0021] In this embodiment, the number of groups of radially adjustable members on the outer periphery of the same longitudinal strut 8 is 3, which are disposed on the opposite sides of the transverse adjusting member. The included angles between two adjacent groups of radially adjustable members on the same longitudinal strut 8 are 60 degrees respectively, and the respective radially adjustable members in the same group of radially adjustable members are evenly arranged along the axial direction of the longitudinal strut. The number of the transverse adjusting members is multiple and they are evenly arranged along the axial direction of the longitudinal strut 8. The center lines of the hollow support arm 6 and the T-shaped support base 3 coincide and radial positioning screws are provided thereon. Radial positioning screws are provided on the thickening platform 10. The adjusting link 5 is a screw rod with a smooth rod in the middle section, and the thread directions of the screw rod sections on both sides of the smooth rod are opposite. The transverse adjusting rod 9 is a screw rod with a smooth rod in the middle section, and the thread directions of the screw rod sections on both sides of the smooth rod are opposite. The upper edge of the arc-shaped support plate 2 is provided with a horizontal flanging that is connected and fixed to the upper surface of the annular ring beam 1.

[0022] Working principle:

[0023] The radial positioning of each arc-shaped support plate 2 is realized by using the two longitudinal struts 8, each transverse adjusting member and each radially adjustable member, so as to realize the radial extrusion positioning of the inner wall of the inspection well and achieve stable support. During the support process, the distance between the hollow support arm 6 and the T-shaped support base 3 is adjusted by rotating the adjusting link 5, and the distance between the two longitudinal struts 8 is adjusted by rotating the transverse adjusting rod 9 to achieve the purpose of tightly pressing the arc-shaped support plate 2.

[0024] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equal changes and improvements made within the scope of the creation of the present invention should still fall within the scope covered by this patent.

Claims

1. A maintenance well support structure, comprising an annular ring beam located at a wellhead and a support assembly arranged in the well, characterized in that: The support assembly includes two longitudinal pillars, a transverse adjustment member connected between the two longitudinal pillars, and a radial adjustable member arranged on the outer periphery of the longitudinal pillars. A plurality of arc-surface support plates are evenly hung on the inner periphery of the annular ring beam. A longitudinal T-shaped joint plate is arranged between two adjacent arc-surface support plates. The radial adjustable member includes a connecting ear seat integrated with the longitudinal pillar, a hollow support arm hinged to the connecting ear seat, an adjustment connecting rod threadedly connected to the other end of the hollow support arm, and a T-shaped support seat threadedly connected to the other end of the adjustment connecting rod. The T-shaped support seat is connected and fixed to the inner surface of the arc-surface support plate. The transverse adjustment member includes a transverse adjustment rod, a thickening platform arranged on opposite sides of the two longitudinal pillars and threadedly connected to both ends of the transverse adjustment rod, and a threaded hole communicating with the inner cavity of the longitudinal pillar is arranged at the center of the thickening platform.

2. The maintenance well support structure according to claim 1, characterized in that: There are three groups of radially adjustable parts on the periphery of the same longitudinal pillar, which are arranged on the opposite sides of the lateral adjustment parts. The angles between two adjacent groups of radially adjustable parts on the same longitudinal pillar are equal, and the radially adjustable parts of the same group are evenly arranged along the axial direction of the longitudinal pillar.

3. The maintenance well support structure according to claim 1, characterized in that: There are multiple transverse adjustment members, which are evenly arranged along the axial direction of the longitudinal support.

4. The maintenance well support structure according to claim 1, characterized in that: The center lines of the hollow support arm and the T-shaped support seat coincide with each other and radial positioning screws are arranged thereon.

5. The maintenance well support structure according to claim 1, characterized in that: The thickening platform is provided with radial positioning screws.

6. The maintenance well support structure according to claim 1, characterized in that: The adjusting connecting rod is a screw rod with a middle section being a polished rod, and the screw rod sections on both sides of the polished rod have opposite thread rotation directions.

7. The maintenance well support structure according to claim 1, characterized in that: The lateral adjustment rod is a screw rod with a middle section being a polished rod, and the screw rod sections on both sides of the polished rod have opposite thread rotation directions.

8. The maintenance well support structure according to claim 1, characterized in that: The upper edge of the arc support plate is provided with a horizontal flange connected to and fixed to the upper surface of the annular ring beam.

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