Detachable modularized foundation pit steel cylinder supporting device for drainage inspection well repair construction

Abstract

The utility model discloses a detachable modularized foundation pit steel cylinder supporting device for drainage inspection well repair construction. The detachable modularized foundation pit steel cylinder supporting device sequentially comprises an arc-shaped supporting steel plate, a first-section supporting cylinder and a plurality of standard sections connected end to end from bottom to top. A plurality of arc-shaped supporting steel plates are connected to the bottom of the first-section supporting cylinder, and all the arc-shaped supporting steel plates jointly form an annular structure; an arc-shaped hole is formed in the annular structure; the first-section supporting cylinder and the standard knots are both of a cylindrical structure, the top of the first-section supporting cylinder is connected with the bottom of the lowermost standard knot, and the first-section supporting cylinder and all the standard knots jointly form a cylindrical structure. An arc-shaped supporting steel plate, a first-section supporting cylinder and a plurality of standard sections connected end to end jointly form a supporting structure surrounding the drainage overhaul well, and therefore foundation pit supporting operation on the periphery of the drainage overhaul well in a narrow area is completed. In addition, the multiple standard knots can be freely spliced according to the depth of the foundation pit, assembly type application is achieved, and the requirement for supporting operation of drainage overhaul wells of various depth specifications is met.

Description

Technical Field

[0001] This utility model relates to the field of drainage engineering technology, specifically to a detachable modular drainage inspection well repair construction pit steel cylinder support device. Background Technology

[0002] As existing municipal drainage projects age, the deformation and collapse of drainage manholes are becoming increasingly common. During the repair of these deformed and collapsed manholes, steel sheet piles cannot be driven in some locations due to limitations such as limited construction space, proximity to surrounding buildings, or proximity to subway lines. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, a detachable modular drainage inspection well repair construction pit steel cylinder support device is provided to meet the support requirements for construction in confined areas.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] The detachable modular drainage manhole repair construction pit steel cylinder support device includes, from bottom to top, an arc-shaped support steel plate, a first support cylinder, and several standard sections connected end to end; the top of several arc-shaped support steel plates is connected to the bottom of the inner wall of the first support cylinder, and all the arc-shaped support steel plates together form a ring structure; an arc-shaped hole is provided on the ring structure, the size of which matches the size of the pipe connected to the manhole; both the first support cylinder and the standard sections adopt a cylindrical structure, the top of the first support cylinder is connected to the bottom of the lowest standard section, and the first support cylinder and all the standard sections together form a cylindrical structure.

[0006] According to the above technical solution, the bottom of the standard section is provided with an installation groove, and the top of the standard section is provided with an installation protrusion; the top of the first support cylinder is provided with an installation protrusion; the installation groove and the installation protrusion are matched.

[0007] According to the above technical solution, the bottom of the standard section is provided with a mounting protrusion, and the top of the standard section is provided with a mounting groove; the top of the first support cylinder is provided with a mounting groove; the mounting groove and the mounting protrusion are matched.

[0008] According to the above technical solution, both the mounting protrusion and the mounting groove are annular structures.

[0009] According to the above technical solution, both the mounting protrusion and the mounting groove are arc-shaped segment structures, and the mounting protrusion and the mounting groove are circumferentially spaced at the top of the standard section, the bottom of the standard section, and the top of the first support cylinder.

[0010] According to the above technical solution, one or more internal support structures are provided inside the standard section. The internal support structure has an outer circular wall surface that matches the inner wall surface of the standard section or the inner wall surface of the first support cylinder. The internal support structure is installed in the standard section or the first support cylinder in a detachable manner.

[0011] According to the above technical solution, one or more hooks are provided on the inner wall of the standard section or the inner wall of the first support tube, and the inner support structure is installed in the standard section or the first support tube through the hooks; the same layer of hooks includes at least six hooks.

[0012] According to the above technical solution, multiple sandbags are placed on the internal support structure.

[0013] According to the above technical solution, the internal support structure includes an outer ring frame, an inner ring frame, and a support rod connecting the inner ring frame and the outer ring frame.

[0014] According to the above technical solution, a screw is provided on the inner wall of the first support cylinder. One end of the screw is fixed to the inner wall of the first support cylinder. The screw is arranged radially along the first support cylinder. The other end of the screw is provided with external threads. An elongated through hole matching the screw is provided on the arc-shaped support steel plate. It also includes a pad with a through hole and a nut. The arc-shaped support steel plate is fixed to the inner wall of the first support cylinder by the nut and the pad.

[0015] According to the above technical solution, the arc-shaped hole is located on a single arc-shaped support steel plate; or the arc-shaped hole is located between two arc-shaped support steel plates and is formed by splicing two arc-shaped support steel plates.

[0016] According to the above technical solution, lifting rings are also provided at the top of the standard section and the first support tube.

[0017] This utility model has the following beneficial effects:

[0018] 1. The support structure surrounding the drainage manhole is constructed using arc-shaped support steel plates, a first-section support cylinder, and several standard sections connected end-to-end, thus completing the foundation pit support work around the drainage manhole in a confined area. Furthermore, multiple standard sections can be freely assembled according to the depth of the foundation pit, achieving prefabricated application and meeting the support requirements for drainage manholes of various depths.

[0019] 2. An internal support structure is provided in the first support tube and the standard section to enhance the structural strength of the internal support structure.

[0020] 3. Sandbags are installed on the internal support structure to assist in the sinking of the first support section, thereby accelerating the construction process.

[0021] 4. The arc-shaped support steel plate is provided with long strip-shaped through holes, which facilitates the adjustment of the position of the arc-shaped hole on the first section of the support cylinder, and meets the requirements for the adaptation of drainage connection pipes in different directions on the drainage maintenance well.

[0022] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a standard section provided in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the first section of the support cylinder and the arc-shaped support steel plate provided in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the first section of the support tube provided in the embodiment of this utility model;

[0028] In the diagram, 1. Arc-shaped support steel plate; 2. First section support cylinder; 3. Standard section; 4. Arc-shaped hole; 5. Installation groove; 6. Installation protrusion; 7. Internal support structure; 8. Screw; 9. Long strip through hole; 10. Pad; 11. Nut; 12. Hook; 13. Pipe connected to the inspection well; 14. Drainage inspection well. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Reference Figures 1-4 As shown, this utility model provides a detachable modular drainage inspection well 14 repair construction pit steel cylinder support device.

[0033] Example 1

[0034] like Figure 1 As shown, from bottom to top, it includes an arc-shaped support steel plate 1, a first-section support cylinder 2, and several standard sections 3 connected end to end; the top of several arc-shaped support steel plates is connected to the bottom of the inner wall of the first-section support cylinder, and all the arc-shaped support steel plates together form a ring structure; an arc-shaped hole 4 is provided on the ring structure, and the size of the arc-shaped hole matches the size of the pipe 13 connected to the maintenance well; the first-section support cylinder and the standard sections both adopt a cylindrical structure, the top of the first-section support cylinder is connected to the bottom of the lowest standard section, and the first-section support cylinder and all the standard sections together form a cylindrical structure.

[0035] When constructing a drainage inspection well in a confined area, the first step is to excavate to a certain depth around the well. The first support section is then hoisted into the excavated area, with the well located inside the first support section. Excavation continues at the bottom of the first support section, allowing it to sink to the excavated foundation under its own weight. After the first support section has sunk to a certain depth, a standard section is installed on top of it. This excavation and standard section placement process is repeated until the first support section reaches the pipe top elevation. Finally, according to the pipe location, an arc-shaped support plate is installed on the first support section.

[0036] Based on the above measures, an arc-shaped support steel plate, a first-section support cylinder, and several standard sections connected end-to-end are used to form a support structure surrounding the drainage inspection well, thereby completing the foundation pit support work around the drainage inspection well in a narrow area. In addition, multiple standard sections can be freely assembled according to the depth of the foundation pit to achieve prefabricated application and meet the support work of drainage inspection wells of various depths.

[0037] Example 2

[0038] like Figures 2-4 As shown, based on Example 2, four connection methods between standard sections and standard sections, as well as between standard sections and the first support tube, are given.

[0039] In the first connection method, the bottom of the standard section has a mounting groove 5, and the top of the standard section has a mounting protrusion; the top of the first support cylinder has a mounting protrusion 6; the mounting groove and the mounting protrusion match each other. Both the mounting protrusion and the mounting groove are annular structures.

[0040] The second connection method involves a mounting groove at the bottom of the standard section and a mounting protrusion at the top; a mounting protrusion is also provided at the top of the first support section; the mounting groove and the mounting protrusion are matched. Both the mounting protrusion and the mounting groove are arc-shaped structures, and they are circumferentially spaced at the top, bottom, and top of the first support section of the standard section.

[0041] The third connection method involves a mounting protrusion at the bottom of the standard section and a mounting groove at the top; a mounting groove is also provided at the top of the first support cylinder; the mounting groove and the mounting protrusion are matched. Both the mounting protrusion and the mounting groove are annular structures.

[0042] The fourth connection method involves a mounting protrusion at the bottom of the standard section and a mounting groove at the top; a mounting groove is also provided at the top of the first support cylinder; the mounting groove and the mounting protrusion are matched. Both the mounting protrusion and the mounting groove are arc-shaped structures, and they are circumferentially spaced at the top, bottom, and top of the first support cylinder of the standard section.

[0043] In all four connection methods, the matching connection between the mounting groove and the mounting protrusion is used to achieve the limiting connection between standard sections and between the standard section and the first support cylinder, thereby restricting the lateral movement of the standard section.

[0044] To enhance the connection strength between standard sections and between a standard section and the first support tube, a fixed connection structure can be provided between standard sections and between a standard section and the first support tube. This fixed connection structure securely connects the standard sections to each other and to the first support tube. The fixed connection structure utilizes existing structures; for example, the connection structure includes connecting blocks and bolt assemblies. Matching connecting blocks are provided at the top and bottom of the standard sections and at the top of the first support tube. The connecting blocks have connecting through holes, through which the bolt assemblies pass, achieving a fixed connection between standard sections and between a standard section and the first support tube. To further enhance the connection strength between standard sections and between a standard section and the first support tube, locking mechanisms can also be installed between the connecting components.

[0045] Example 3

[0046] Based on Embodiments 1 and 2, to enhance the strength of the cylindrical structure, one or more inner support structures 7 are provided inside the standard section. These inner support structures have an outer circular wall surface that matches the inner wall surface of the standard section or the inner wall surface of the first support tube. The inner support structure is detachably installed inside the standard section or the first support tube. In this embodiment, the inner support structure can also be directly fixed to the inner wall surface of the standard section or the first support tube.

[0047] A preferred connection method is provided for the internal support structure to be detachably installed in the standard section or the first section of the support tube. One or more hooks 12 are provided on the inner wall of the standard section or the inner wall of the first section of the support tube. The internal support structure is installed in the standard section or the first section of the support tube through the hooks. The hooks in the same layer include at least six hooks.

[0048] In Example 3, in order to increase the sinking speed of the first support tube, multiple sandbags can be placed on the inner support structure.

[0049] In embodiment 3, a preferred form of the internal support structure is provided, which includes an outer ring frame, an inner ring frame, and a support rod connecting the inner and outer ring frames. However, the internal support structure is not limited to this preferred structure; it can also be composed of multiple arc segments spliced ​​together, or the inner ring frame can be replaced with a square frame.

[0050] Example 4

[0051] Based on Examples 1 to 3, a preferred connection method for the arc-shaped support steel plate within the first section of the support cylinder is provided. A screw 8 is provided on the inner wall of the first section of the support cylinder, one end of which is fixed to the inner wall of the first section of the support cylinder. The screw is arranged radially along the first section of the support cylinder, and the other end of the screw has an external thread. An elongated through hole 9 matching the screw is provided on the arc-shaped support steel plate. The system also includes a pad 10 with the through hole and a nut 11, which are used to fix the arc-shaped support steel plate to the inner wall of the first section of the support cylinder.

[0052] In Examples 1-4, the arc-shaped support steel plates can be connected by bolts or simply attached to each other without being connected.

[0053] In embodiments 1-4, the arc-shaped hole is provided on a single arc-shaped support steel plate; or the arc-shaped hole is provided between two arc-shaped support steel plates, which are spliced ​​together. As shown in the figure, it includes four arc-shaped support steel plates, and the arc-shaped hole is provided between two arc-shaped support steel plates.

[0054] There are also lifting rings at the top of the standard section and the first support tube, as shown in the figure, there are 4 lifting rings.

[0055] The working process of this utility model:

[0056] After surveying and setting out the location, the working well is excavated to a certain depth. Then, the first support section is placed in, and excavation continues in the area below the first support section, allowing it to sink under its own weight (sandbags can be placed on the inner support structure of the first support section to accelerate its sinking). After the first support section has sunk to a certain height, a standard section is placed; the excavation and standard section placement are repeated until the first support section reaches the top elevation of the pipe. Depending on the pipeline location, the curved support steel plate is installed on the first support section.

[0057] After the inspection well construction is completed, the steel cylinder support device of the repair construction pit of the detachable modular drainage inspection well will be gradually backfilled and removed.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A detachable modular drainage inspection well repair construction pit steel cylinder support device, characterized in that: From bottom to top, it includes an arc-shaped support steel plate, a first support cylinder, and several standard sections connected end to end; the top of several arc-shaped support steel plates is connected to the bottom of the inner wall of the first support cylinder, and all the arc-shaped support steel plates together form a ring structure; an arc-shaped hole is provided on the ring structure, and the size of the arc-shaped hole matches the size of the pipe connected to the maintenance well; both the first support cylinder and the standard sections adopt a cylindrical structure, and the top of the first support cylinder is connected to the bottom of the lowest standard section. The first support cylinder and all the standard sections together form a cylindrical structure.

2. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 1, characterized in that: The bottom of the standard section is provided with a mounting groove, and the top of the standard section is provided with a mounting protrusion; the top of the first support cylinder is provided with a mounting protrusion; the mounting groove and the mounting protrusion are matched.

3. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 1, characterized in that: The bottom of the standard section is provided with a mounting protrusion, and the top of the standard section is provided with a mounting groove; the top of the first support cylinder is provided with a mounting groove; the mounting groove and the mounting protrusion are matched.

4. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 2 or 3, characterized in that: Both the mounting protrusion and the mounting groove are annular structures; Alternatively, both the mounting protrusion and the mounting groove are arc-shaped segments, and the mounting protrusion and the mounting groove are circumferentially spaced at the top of the standard section, the bottom of the standard section, and the top of the first support cylinder.

5. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 1, characterized in that: One or more inner support structures are provided inside the standard section. The inner support structure has an outer circular wall that matches the inner wall of the standard section or the inner wall of the first support tube. The inner support structure is installed in the standard section or the first support tube in a detachable manner.

6. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 5, characterized in that: One or more layers of hooks are provided on the inner wall of the standard section or the inner wall of the first support tube. The inner support structure is installed in the standard section or the first support tube through the hooks; the same layer of hooks includes at least six hooks.

7. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 5, characterized in that: Multiple sandbags were placed on the internal support structure.

8. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 5, characterized in that: The internal support structure includes an outer ring frame, an inner ring frame, and a support rod connecting the inner ring frame and the outer ring frame.

9. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 1, characterized in that: A screw is provided on the inner wall of the first support cylinder. One end of the screw is fixed to the inner wall of the first support cylinder. The screw is arranged radially along the first support cylinder. The other end of the screw is provided with external threads. An elongated through hole matching the screw is provided on the arc-shaped support steel plate. It also includes a pad with a through hole and a nut. The arc-shaped support steel plate is fixed to the inner wall of the first support cylinder by the nut and the pad.

10. The detachable modular drainage inspection well repair construction pit steel cylinder support device according to claim 1, characterized in that: The arc-shaped hole is located on a single arc-shaped support steel plate; or the arc-shaped hole is located between two arc-shaped support steel plates, which are spliced ​​together; a lifting ring is also provided at the top of the standard section and the first section of the support cylinder.

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