Construction device and method for filling between sewage pipeline sleeve and pressure pipe

By designing a filling construction device for sewage pipeline construction, the structural instability and anticorrosion coating damage caused by the non-filled material between the casing and the pressure pipe during sewage pipeline construction is solved, and a higher construction quality and service life is achieved.

CN119778548APending Publication Date: 2025-04-08RIZHAO BISHUI CONSTR & INSTALLATION ENG DEPT
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Patent Information

Application Number
CN202510109251.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

In sewage pipe construction, when no material is filled between the casing and the pressure pipe, it may lead to defects such as structural instability, insufficient shock absorption and buffering, and hidden construction quality hazards. The impact force of the filling material is relatively large, difficult to control, and it is easy to damage the anti-corrosion coating of the pressure pipe.

Method used

Design a construction device for filling between the sewage pipe sleeve and the pressure pipe, including moving pipe body, fixed pipe and filling pipe. By connecting the filling pipe with the fixed pipe and moving the moving pipe body in the sewage pipe, the filling pipe is driven to fill toward the inner side wall of the casing, the damage to the anti-corrosion coating of the pressure pipe is reduced, and the position of the filling pipe is adjusted by the driving component to improve filling flexibility.

Benefits of technology

It effectively reduces the damage to the anti-corrosion coating of the pressure pipe, improves the structural stability and construction quality of the sewage pipe, enhances the control and flexibility of the filling materials, and extends the service life of the sewage pipe.

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Abstract

The invention relates to a filling construction device and method between a sewage pipeline sleeve and a pressure pipe, and relates to the technical field of pipeline construction.The filling construction device comprises a movable pipe body moving between the sleeve and the pressure pipe, the movable pipe body moves in the length direction of a sewage pipeline, and the outer surface of the movable pipe body is fixedly connected with a fixed pipe; the fixed pipe is obliquely arranged on the movable pipe body in the direction facing the sleeve, the filling pipeline is detachably connected to the fixed pipe, when the filling pipeline is connected with the fixed pipe, a pipe opening of the filling pipeline is arranged in the direction facing the sleeve, and a driving assembly used for driving the movable pipe body to move in the sewage pipeline is arranged on the movable pipe body. In the material filling process, the pipe opening of the filling pipeline faces the inner side wall of the sleeve all the time, and therefore damage to an anti-corrosion coating of the pressure pipe is reduced; in the filling process, the position of the movable pipe body can be adjusted by operating the driving assembly, and then the flexibility of filling the interior of the sewage pipeline is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of pipeline construction, and in particular to a filling construction device and method between a sewage pipeline casing and a pressure pipe. Background Art

[0002] Sewage pipes usually include a casing and a pressure pipe. The casing is located outside the pressure pipe. If no material is filled between the casing and the pressure pipe under the action of negative pressure, defects such as structural instability, insufficient shock absorption and buffering, and construction quality risks may occur.

[0003] Therefore, in the construction of sewage pipes, choosing the right casing and pressure pipe filling materials is crucial to the stability and service life of sewage pipes. Filling materials between casing and pressure pipe are usually used to provide support, buffer and seal to ensure the stability of the structure and the integrity of its functions.

[0004] An anti-corrosion coating is usually applied on the outer surface of the pressure pipe. Currently, during the filling process between the casing and the pressure pipe, workers directly extend the filling pipe to the upper end of the pressure pipe. During the filling process, the filling material will be sprayed out from the nozzle of the filling pipe at high pressure. The impact force of the filling material is large and the direction of the nozzle is difficult to control. If the nozzle of the filling pipe is directly facing the outer surface of the pressure pipe, the anti-corrosion coating will be damaged, which may lead to defects such as insufficient life of the pressure pipe after filling. Summary of the invention

[0005] In order to solve the above problems, the present application provides a filling construction device and method between a sewage pipe casing and a pressure pipe.

[0006] In the first aspect, the present application provides a construction device for filling between a sewage pipe casing and a pressure pipe, which adopts the following technical solution: A filling construction device between a sewage pipe casing and a pressure pipe comprises a movable pipe body moving between the casing and the pressure pipe, the movable pipe body moves along the length direction of the sewage pipe, a fixed pipe is fixedly connected to the outer surface of the movable pipe body, the fixed pipe is inclinedly arranged on the movable pipe body toward the casing, a filling pipe is detachably connected to the fixed pipe, when the filling pipe is connected to the fixed pipe, the pipe mouth of the filling pipe is arranged toward the casing, and a driving component for driving the movable pipe body to move in the sewage pipe is arranged on the movable pipe body.

[0007] By adopting the above technical solution, after the filling pipe is connected to the fixed pipe, the movable pipe body is placed between the casing and the pressure pipe from the pipe mouth of the sewage pipe, and then the movable pipe body is manipulated to move, thereby driving the filling pipe to move, and moving to the end of the sewage pipe away from the pipe mouth, material filling can be started. During the material filling process, the pipe mouth of the filling pipe is always facing the inner wall of the casing, thereby reducing damage to the anti-corrosion coating of the pressure pipe; during the filling process, the position of the movable pipe body can be adjusted by manipulating the driving component, thereby improving the flexibility of filling into the sewage pipe.

[0008] Optionally, the fixed tube includes a fixed part and a movable part, the fixed part is fixedly connected to the outer surface of the movable tube body, and the movable part includes two movable plates, one end of the two movable plates is hinged to the fixed part, and the other ends of the two movable plates are detachably connected.

[0009] By adopting the above technical solution, when installing the filling pipe, first open the two movable plates, then pass the filling pipe through the fixed pipe, and then connect the two movable plates to complete the fixation of the filling pipe. After the filling pipe is fixed in the fixed pipe, the movable pipe body can be manipulated to move. The structure is simple and the fixation is convenient.

[0010] Optionally, the movable tube body is provided with a plurality of sliding plates at equal intervals along the circumferential direction, the plurality of sliding plates are all arranged along the radial direction of the movable tube body, and are slidably connected to the movable tube body along the radial direction, one end of the plurality of sliding plates in the length direction is set as a driving end, the driving ends are all located outside the movable tube body, the other end of the plurality of sliding plates in the length direction is set as a supporting end, the supporting ends are all located inside the movable tube body, the driving assembly includes a plurality of rotating wheels, the rotating wheels correspond to the sliding plates one by one, the plurality of rotating wheels are rotatably connected to the driving ends of the corresponding sliding plates, and the axes of the rotating wheels and the axis of the pressure tube are arranged parallel to each other.

[0011] By adopting the above technical solution, during the process of filling the sewage pipe, if it is necessary to wrap the pressure pipe 360 ​​degrees with filling material after evaluating the environmental conditions, the height of the filling pipe is adjusted during the filling process; if the height of the filling material is about to be higher than the height of the pipe, a number of rotating wheels can be manipulated to rotate, thereby driving the mobile pipe to rotate inside the casing, thereby adjusting the height of the filling pipe, making the filling material more convenient, and better controlling the filling of the material, with higher convenience and better flexibility.

[0012] Optionally, several of the support ends are rotatably connected to support wheels, and the axes of the several support wheels are arranged perpendicular to the axis of the pressure pipe.

[0013] By adopting the above technical solution, when the mobile pipe body moves inside the sewage pipe, the support wheels can be manipulated to abut against the outer wall of the pressure pipe, thereby improving the stability of the mobile pipe body during movement.

[0014] Optionally, the movable tube body is provided with a plurality of walking plates at equal intervals along the circumferential direction, the plurality of walking plates are all arranged along the radial direction of the movable tube body, and are slidably connected to the movable tube body along the radial direction, and the driving assembly also includes a plurality of walking wheels, the walking wheels correspond to the walking plates one by one, the walking wheels are rotatably connected to the corresponding walking plates, and the walking wheels are located at one end of the walking plates away from the movable tube body.

[0015] By adopting the above technical solution, when manipulating the mobile tube body to move, the sliding plate is manipulated to move in the direction close to the pressure tube until the support wheel abuts against the outer wall of the pressure tube, and then the walking wheel is manipulated to rotate, thereby driving the mobile tube body to move. The structure is simple and the driving is convenient. At this time, the support wheel can roll on the pressure tube, thereby supporting the mobile tube body, thereby improving the support for the mobile tube body, and thereby improving the stability of the movement of the mobile tube body.

[0016] Optionally, the movable tube body is rotatably connected with a plurality of driving gears, a driving rack is provided on one side in the length direction of each sliding plate, the driving gears correspond to the driving racks one by one, and each driving gear is meshed with the corresponding driving rack.

[0017] By adopting the above technical solution, the driving rack can be driven to move by manipulating the rotation of the driving gear, thereby driving the sliding plate to move toward or away from the pressure pipe, with a simple structure and convenient driving.

[0018] Optionally, a plurality of cylinders are arranged at equal intervals on the movable tube body, and the cylinders correspond to the walking plates one by one. The piston rod of each cylinder is fixedly connected to one end of the walking plate in the length direction. When the piston rod of the cylinder is extended, the walking wheel abuts against the inner wall of the sleeve.

[0019] By adopting the above technical solution, the walking plate can be driven to move toward or away from the sleeve by operating the piston rod of the cylinder to extend, which has a simple structure and is easy to drive.

[0020] Optionally, the outer surface of the movable pipe body is provided with a plurality of support rings for supporting the filling pipe, and the plurality of support rings are all located on the same side as the fixed pipe.

[0021] By adopting the above technical solution, before installing the filling pipe to the fixed pipe, the filling pipe is first passed through the two support rings in sequence, and then the pipe mouth of the filling pipe is installed on the fixed pipe, thereby improving the stability of the moving filling pipe.

[0022] In a second aspect, the present application provides a filling construction method between a sewage pipe casing and a pressure pipe.

[0023] A construction method for filling between a sewage pipe casing and a pressure pipe comprises the following steps: S1: Prepare filling materials; S2: Evaluate the material filling amount between the casing and the pressure pipe according to environmental conditions; S3: Connect the filling pipe to the mobile pipe body, manipulate the mobile pipe body to move between the casing and the pressure pipe, and move it to the place to be filled in the sewage pipe away from the pipe opening; S4: Pipe filling, the filling pipe sprays out filling material to fill the space between the casing and the pressure pipe; S5: Seal the pipe mouth of the sewage pipe and complete the filling between the casing and the pressure pipe of a section of the sewage pipe. After the next sewage pipe is connected, repeat steps S2-S4 to fill the next sewage pipe.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. After connecting the filling pipe with the fixed pipe, place the mobile pipe body between the casing and the pressure pipe from the pipe mouth of the sewage pipe, and then operate the mobile pipe body to move, thereby driving the filling pipe to move, and move to the end of the sewage pipe away from the pipe mouth, and then start filling the material. During the material filling process, the pipe mouth of the filling pipe is always facing the inner wall of the casing, thereby reducing the damage to the anti-corrosion coating of the pressure pipe; during the filling process, the position of the mobile pipe body can be adjusted by operating the driving component, thereby improving the flexibility of filling into the sewage pipe; 2. When operating the mobile tube body to move, operate the sliding plate to move in the direction close to the pressure tube until the support wheel is in contact with the outer wall of the pressure tube, and then operate the walking wheel to rotate, thereby driving the mobile tube body to move. The structure is simple and easy to drive. At this time, the support wheel can roll on the pressure tube, thereby supporting the mobile tube body, thereby improving the support for the mobile tube body, thereby improving the stability of the movement of the mobile tube body; in the process of filling the sewage pipe, if it is necessary to wrap the pressure tube 360 ​​degrees with filling material after evaluating the environmental conditions, the height of the filling pipe is adjusted during the filling process; if the height of the filling material is about to be higher than the height of the pipe, a number of rotating wheels can be operated to rotate, thereby driving the mobile pipe to rotate inside the casing, thereby adjusting the height of the filling pipe, making it more convenient to fill the material, and better controlling the filling of the material, with high convenience and good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1The present invention is a schematic diagram of the overall structure of a filling construction device between a sewage pipe casing and a pressure pipe.

[0026] Figure 2 It is a schematic cross-sectional view highlighting the fixed tube.

[0027] Figure 3 It is a cross-sectional schematic diagram highlighting the drive gear.

[0028] Explanation of the accompanying drawings: 100, casing; 200, pressure pipe; 300, filling pipe; 1, movable tube body; 2, fixed tube; 21, fixed part; 22, movable part; 221, movable plate; 3, sliding plate; 31, driving end; 311, rotating wheel; 312, rotating motor; 32, supporting end; 321, supporting wheel; 4, walking plate; 41, walking wheel; 42, cylinder; 43, walking motor; 5, driving gear; 51, driving rack; 6, supporting ring. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0030] The embodiment of the present application discloses a filling construction device between a sewage pipe casing and a pressure pipe.

[0031] Reference Figure 1 and Figure 2 A filling construction device between a sewage pipe casing and a pressure pipe comprises a mobile pipe body 1 movable between a casing 100 and a pressure pipe 200, a fixed pipe 2 being fixedly connected to the outer surface of the mobile pipe body 1, and the fixed pipe 2 being obliquely arranged on the mobile pipe body 1 toward the casing 100, and a filling pipe 300 being detachably connected to the fixed pipe 2, firstly connecting the filling pipe 300 with the fixed pipe 2, and then placing the mobile pipe body 1 in the sewage pipe, when the filling pipe 300 is connected with the fixed pipe 2, the pipe mouth of the filling pipe 300 is arranged toward the casing 100, and the mobile pipe body 1 is moved to the position to be filled to carry out material filling, and during filling, the pipe mouth of the pipe is always facing the inner wall of the casing 100, thereby reducing damage to the anti-corrosion coating of the pressure pipe 200.

[0032] Reference Figure 2 and Figure 3, the outer surface of the movable tube body 1 is provided with two support rings 6 for supporting the filling pipe 300, and the two support rings 6 are located on the same side as the fixed tube 2, and the fixed tube 2 includes a fixed part 21 and a movable part 22, the fixed part 21 is fixedly connected to the outer surface of the movable tube body 1, and the movable part 22 includes two movable plates 221, one end of the two movable plates 221 is hinged on the fixed part 21, and the other end of the two movable plates 221 is detachably connected; first, the filling pipe 300 is installed on the movable tube body 1, the two movable plates 221 are opened, the filling pipe 300 is passed through the two support rings 6 in turn, and then the filling pipe 300 is passed through the fixed tube 2, and then the two movable plates 221 are connected, and then the filling pipe 300 is fixed on the fixed tube 2.

[0033] Reference Figure 2 and Figure 3 , and then the mobile pipe body 1 can be placed between the pressure pipe 200 and the casing 100. The mobile pipe body 1 is provided with a driving component for driving the mobile pipe body 1 to move in the sewage pipe; the mobile pipe body 1 is provided with three walking boards 4 at equal intervals along the circumferential direction, and the three walking boards 4 are all arranged along the radial direction of the mobile pipe body 1, and are slidably connected to the mobile pipe body 1 along the radial direction. The driving component also includes a plurality of walking wheels 41, and the walking wheels 41 correspond to the walking boards 4 one by one. The walking wheels 41 are all rotatably connected to the corresponding walking boards 4, and the walking wheels 41 are located at the end of the walking board 4 away from the mobile pipe body 1. The mobile pipe body 1 is placed between the pressure pipe 200 and the casing 100, and then the position of the walking wheels 41 can be adjusted.

[0034] Reference Figure 2 and Figure 3 Three cylinders 42 are arranged at equal intervals on the mobile tube body 1, and each cylinder 42 corresponds to the walking plate 4 one by one. The piston rod of each cylinder 42 is fixedly connected to one end of the walking plate 4 in the length direction. The piston rods of the three cylinders 42 are extended at the same time, and the three walking wheels 41 are abutted against the inner wall of the casing 100, thereby supporting the mobile tube body 1 between the pressure tube 200 and the casing 100.

[0035] Reference Figure 2 and Figure 3The mobile tube body 1 is provided with three sliding plates 3 at equal intervals along the circumferential direction. The three sliding plates 3 are all arranged along the radial direction of the mobile tube body 1, and one end of the three sliding plates 3 in the length direction that is slidably connected to the mobile tube body 1 in the radial direction is set as a driving end 31, and the driving end 31 is located outside the mobile tube body 1. The other end of the three sliding plates 3 in the length direction is set as a supporting end 32, and the supporting end 32 is located inside the mobile tube body 1. The driving assembly includes three rotating wheels 311, and the rotating wheels 311 correspond to the sliding plates 3 one by one. The three rotating wheels 311 are all rotatably connected to the driving ends 31 of the corresponding sliding plates 3, and the axis of the rotating wheel 311 is arranged parallel to the axis of the pressure tube 200; The support ends 32 are all rotatably connected to support wheels 321, and the axes of the three support wheels 321 are all arranged perpendicular to the axis of the pressure tube 200; three driving gears 5 are rotatably connected to the mobile tube body 1, and a driving rack 51 is arranged on one side of the length direction of each sliding plate 3, and the driving gears 5 correspond to the driving racks 51 one by one, and each driving gear 5 is meshed with the corresponding driving rack 51; the driving gears 5 are all rotatably connected to the tube wall of the mobile tube body 1, and three chambers are opened in the tube wall, and the chambers correspond to the driving gears 5 one by one, and a driving motor is arranged inside each chamber, and the output shaft of the driving motor is fixedly connected to the axis center of the driving gear 5 located in the same chamber.

[0036] Reference Figure 2 and Figure 3 , operate the output shafts of the three driving motors to rotate, thereby driving the driving gear 5 to rotate, moving the support end 32 in the direction close to the pressure tube 200, and pressing the support wheel 321 against the outer surface of the pressure tube 200; each walking board 4 is provided with a walking motor 43 at one end away from the cylinder 42, and the output shafts of the walking motor 43 are fixedly connected to the axis of the walking wheel 41 located on the same walking board 4, and the output shafts of several walking motors 43 are operated to rotate, thereby driving several walking wheels 41 to rotate, and then driving the mobile tube body 1 to move. During the movement, the support wheel 321 can roll on the pressure tube 200, thereby supporting the mobile tube body 1, thereby improving the support for the mobile tube body 1, and thereby improving the stability of the movement of the mobile tube body 1.

[0037] Reference Figure 2 and Figure 3 , move the mobile pipe body 1 to the position where the sewage pipe is to be filled, and then fill the material into the pipe. The material is sprayed outward from the pipe mouth of the filling pipe 300, and the pipe mouth of the filling pipe 300 is facing the inner wall of the casing 100, thereby reducing the damage to the anti-corrosion coating of the pressure pipe 200.

[0038] Among them, in the process of filling the sewage pipe, the wrapping angle of the pressure pipe 200 can be adjusted according to the environmental conditions (soil moisture, pressure, temperature, etc.). The wrapping angle can be generally divided into 120° wrapping, 180° wrapping and 360° wrapping according to different environmental conditions to adapt to different environments and maintenance requirements and reduce maintenance costs.

[0039] Reference Figure 2 and Figure 3 If, according to the environmental conditions, it is necessary to wrap the pressure pipe 200 360 degrees with the filling material, the height of the filling pipe 300 is adjusted during the filling process; a rotating motor 312 is provided on each sliding plate 3, and the output shaft of the rotating motor 312 is fixedly connected to the axis of the rotating wheel 311 located on the same sliding plate 3. If the height of the filling material is about to be higher than the height of the pipe, the rotating motor 312 can be operated to rotate, thereby driving the rotating wheel 311 to move toward the inner wall of the casing 100 until the rotating wheel 311 is abutted against the inner wall of the casing 100, and at the same time, the piston rods of the cylinders 42 are operated to retract, and the rotating wheels 311 are rotated, thereby driving the moving pipe to rotate inside the casing 100, thereby adjusting the height of the filling pipe 300, making it more convenient to fill the sewage pipe with materials, and also better controlling the filling of materials, with high convenience and good flexibility; it can also reduce the impact force caused by filling the same position of the casing 100, thereby protecting the sewage pipe.

[0040] By manipulating the driving assembly, the position and angle of the mobile pipe body 1 can be adjusted when filling the sewage pipe, thereby completing the material filling of the sewage pipe, and the filling flexibility is high.

[0041] The working principle of a filling construction device between a sewage pipe casing and a pressure pipe 200 in an embodiment of the present application is as follows: the filling pipe 300 is installed on the rear movable pipe body 1, and then the filling pipe 300 and the movable pipe body 1 are placed between the pressure pipe 200 and the casing 100, and then the three cylinders 42 are operated to extend, and the walking wheels 41 are abutted against the inner wall of the casing 100, and the output shaft of the driving motor is operated to rotate, and the supporting wheels 321 are abutted against the outer wall of the pressure pipe 200, and then the output shaft of the walking motor 43 can be operated to rotate, so as to drive the movable pipe body 1 and the filling pipe 300 to move, and the movable pipe body 1 is moved to the position to be filled in the sewage pipe, and then the material can be filled into the pipe, and the material is sprayed outward from the pipe mouth of the filling pipe 300 to fill the pipe. The pipe mouth of 300 is facing the inner wall of the sleeve 100, thereby reducing damage to the anti-corrosion coating of the pressure pipe 200. The three driving motors can also be operated to rotate, driving the rotating wheel 311 to move to a position abutting the inner wall of the sleeve 100, and at the same time the walking wheel 41 is operated to retract, and then the output shafts of the three rotating motors 312 are operated to rotate, thereby driving the three rotating wheels 311 to rotate, and then driving the moving pipe body 1 and the filling pipe 300 to rotate, and then adjusting the height of the filling pipe 300, so that it is more convenient to fill the material into the sewage pipe, and the filling of the material can be better controlled, with high convenience and good flexibility; it can also reduce the impact force caused by filling the same position of the sleeve 100, thereby protecting the sewage pipe.

[0042] The present application also provides a filling construction method between a sewage pipe casing and a pressure pipe.

[0043] A construction method for filling between a sewage pipe casing and a pressure pipe comprises the following steps: S1: Prepare the filling material; use river sand and cement mixed in a ratio of 9:1 as the filling material.

[0044] S2: Evaluate the material filling amount between the casing 100 and the pressure pipe 200 according to environmental conditions.

[0045] S3: Connect the filling pipe 300 to the movable pipe body 1, and manipulate the movable pipe body 1 to move between the sleeve 100 and the pressure pipe 200 to a location of the sewage pipe to be filled away from the pipe opening.

[0046] S4: Pipe filling, the filling pipe 300 sprays the filling material to fill the space between the sleeve 100 and the pressure pipe 200; during the filling process, the pipe opening of the filling pipe 300 always faces the inner wall of the sleeve 100.

[0047] S5: Seal the pipe mouth of the sewage pipe and complete the filling between the casing and the pressure pipe of a section of the sewage pipe. After the next sewage pipe is connected, repeat steps S2-S4 to fill the next sewage pipe.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction device for filling between a casing and a pressure pipe of a sewage pipe, comprising a movable pipe body (1) that moves between the casing (100) and the pressure pipe (200), characterized in that: The movable pipe body (1) moves along the length direction of the sewage pipe. The outer surface of the movable pipe body (1) is fixedly connected to a fixed pipe (2). The fixed pipe (2) is arranged on the movable pipe body (1) in an inclined manner toward the direction of the sleeve (100). The filling pipe (300) is detachably connected to the fixed pipe (2). When the filling pipe (300) is connected to the fixed pipe (2), the pipe mouth of the filling pipe (300) is arranged toward the direction of the sleeve (100). The movable pipe body (1) is provided with a driving component for driving the movable pipe body (1) to move in the sewage pipe.

2. A construction device for filling between a sewage pipe casing and a pressure pipe according to claim 1, characterized in that: The fixed tube (2) comprises a fixed portion (21) and a movable portion (22), wherein the fixed portion (21) is fixedly connected to the outer surface of the movable tube body (1), and the movable portion (22) comprises two movable plates (221), one end of the two movable plates (221) are hinged to the fixed portion (21), and the other ends of the two movable plates (221) are detachably connected.

3. A construction device for filling between a sewage pipe casing and a pressure pipe according to claim 1, characterized in that: The movable tube body (1) is provided with a plurality of sliding plates (3) at equal intervals along the circumferential direction. The plurality of sliding plates (3) are all arranged along the radial direction of the movable tube body (1) and are slidably connected to the movable tube body (1) along the radial direction. One end of the plurality of sliding plates (3) in the length direction is arranged as a driving end (31). The driving end (31) is located outside the movable tube body (1). The other end of the plurality of sliding plates (3) in the length direction is arranged as a supporting end (32). The supporting end (32) is located inside the movable tube body (1). The driving assembly comprises a plurality of rotating wheels (311). The rotating wheels (311) correspond to the sliding plates (3) one by one. The plurality of rotating wheels (311) are rotatably connected to the driving end (31) of the corresponding sliding plate (3). The axis of the rotating wheel (311) is arranged parallel to the axis of the pressure tube (200).

4. A construction device for filling between a sewage pipe casing and a pressure pipe according to claim 3, characterized in that: The plurality of support ends (32) are rotatably connected to support wheels (321), and the axes of the plurality of support wheels (321) are arranged perpendicular to the axis of the pressure pipe (200).

5. The filling construction device between the sewage pipe casing and the pressure pipe according to claim 1 is characterized by: The mobile tube body (1) is provided with a plurality of walking plates (4) at equal intervals along the circumferential direction. The plurality of walking plates (4) are all arranged along the radial direction of the mobile tube body (1) and are slidably connected to the mobile tube body (1) along the radial direction. The driving assembly further comprises a plurality of walking wheels (41). The walking wheels (41) correspond to the walking plates (4) one by one. The walking wheels (41) are all rotatably connected to the corresponding walking plates (4). The walking wheels (41) are located at one end of the walking plates (4) away from the mobile tube body (1).

6. A construction device for filling between a sewage pipe casing and a pressure pipe according to claim 3, characterized in that: The movable tube body (1) is rotatably connected to a plurality of driving gears (5), and a driving rack (51) is provided on one side in the length direction of each sliding plate (3). The driving gears (5) correspond to the driving racks (51) one by one, and each driving gear (5) is meshed with a corresponding driving rack (51).

7. A construction device for filling between a sewage pipe casing and a pressure pipe according to claim 5, characterized in that: A plurality of cylinders (42) are arranged at equal intervals on the moving tube body (1), and the cylinders (42) correspond to the walking plates (4) one by one. The piston rod of each cylinder (42) is fixedly connected to one end of the walking plate (4) in the length direction. When the piston rod of the cylinder (42) is extended, the walking wheel (41) abuts against the inner wall of the sleeve (100).

8. The filling construction device between the sewage pipe casing and the pressure pipe according to claim 1, characterized in that: The outer surface of the movable pipe body (1) is provided with a plurality of support rings (6) for supporting the filling pipe (300), and the plurality of support rings (6) are all located on the same side as the fixed pipe (2).

9. A filling construction method between a sewage pipe casing and a pressure pipe, characterized in that: Filling between the casing of a sewage pipe and a pressure pipe using a construction device for filling between the casing of a sewage pipe and a pressure pipe as described in any one of claims 1 to 8 comprises the following steps: S1: Prepare filling materials; S2: Evaluate the material filling amount between the casing (100) and the pressure pipe (200) according to environmental conditions; S3: Connect the filling pipe (300) to the movable pipe body (1), and manipulate the movable pipe body (1) to move between the casing (100) and the pressure pipe (200) to a location of the sewage pipe to be filled away from the pipe opening; S4: Pipe filling, the filling pipe (300) sprays out the filling material to fill the space between the casing (100) and the pressure pipe (200); S5: Seal the pipe mouth of the sewage pipe and complete the filling between the casing and the pressure pipe of a section of the sewage pipe. After the next sewage pipe is connected, repeat steps S2-S4 to fill the next sewage pipe.