Municipal drainage pipeline construction process and municipal drainage pipeline construction device

Abstract

The invention discloses a municipal drainage pipeline construction process and device, and relates to the technical field of pipeline construction treatment. Comprising the steps that S1, a groove is excavated, specifically, the position of a drainage pipeline is marked on the ground according to design requirements and a drawing, the groove with the proper depth and width is excavated through an excavator according to the mark, and a track used for operation of a construction device is laid in the groove; and S2, a stabilizing component is installed, specifically, the stabilizing component used for supporting the drainage pipeline is installed in the groove. According to the invention, the stabilizing component is added in the pipeline construction equipment, on one hand, the stabilizing component reduces vibration generated during operation of the pipeline construction equipment, and on the other hand, a reinforcing piece extending to the outside can be added outside the pipeline, so that the underground outdoor drainage pipeline is effectively prevented from being damaged due to backfilling of soil; and the slope requirement of the buried drainage pipeline is met, and even if the backfill soil sinks, normal use of the buried drainage pipeline can still be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline construction and processing, in particular to a municipal drainage pipeline construction process and a device thereof. Background Art

[0002] Municipal pipelines are buried underground, so specific municipal drainage pipeline construction technology and equipment must be used to lay and install the pipelines.

[0003] Upon inquiry, the Chinese invention patent with authorization announcement number "CN106978843B" disclosed a "municipal drainage pipe construction process". This invention achieved the goals of improving construction quality, reducing construction difficulty, shortening construction period and enhancing the safety of surrounding pipelines by sealing the connection between the drainage pipe and the inspection well, and implementing inspections during the construction process.

[0004] In addition, the Chinese invention patent with application publication number "CN115450285A" announced "a water supply and drainage pipeline construction process". This invention sets clear construction process procedures and water supply and drainage pipeline construction elements, ensuring the steady progress of various types of work in the case of many urban engineering buildings and large construction areas, improving construction efficiency, reducing construction costs, and improving construction quality. The key is to effectively avoid the potential leakage risk of PPR pipelines.

[0005] However, in actual application, the above two patents have the following problems: First, when installing the drainage pipe through the construction device, the geological conditions and the vibrations generated by the operation of the construction device may cause the drainage pipe to sink after installation. In addition, during the pipeline laying process, due to slope requirements and other reasons, the position of the construction device needs to be continuously adjusted to complete the pipeline laying. Finally, due to the different corrosiveness of different soil types to the pipeline, acidic soil accelerates pipeline corrosion, and soil humidity will also cause moisture to accumulate on the surface of the pipeline, thereby accelerating pipeline corrosion.

[0006] In order to solve the above problems, the applicant proposed a new municipal drainage pipeline construction process and device. Summary of the invention

[0007] The purpose of the present invention is to provide a municipal drainage pipeline construction process and a device thereof to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: In the first aspect, a municipal drainage pipeline construction process is designed, comprising the following steps: S1. Digging trenches: According to the design requirements and drawings, mark the location of the drainage pipes on the ground, use an excavator to dig trenches of appropriate depth and width according to the markings, and lay tracks in the trenches for the operation of the construction equipment; S2. Installing stabilizing components: Installing stabilizing components for supporting the drainage pipe inside the groove; S3. Laying drainage pipes: Place the prefabricated drainage pipes into the trenches according to the design requirements to ensure that the connections between the drainage pipes are firm and reliable; S4. Add protective parts: Based on the stable components, protective parts for blocking the contact between the pipe and the soil are installed on both sides of the outside of the drainage pipe, and protective materials for burying the drainage pipe are filled on the top of the two protective parts; S5. Equipped with isolation tubes: Several isolation tubes are installed on the top of the protective element, and hooks are installed in the isolation tubes of the protective element; S6. Remove the tracks and construction equipment; S7. Backfill the trench: pour a layer of concrete or any one of the solidifying materials on the top of the protective member to form a covering layer that wraps the isolation pipe, and the covering layer will fill the entire trench; S8. Compact the covering layer: Use a vibrating rod or a flat vibrator to evenly compact the covering layer to ensure that the covering layer is dense and prevent the drainage pipe from being deformed due to soil pressure; S9, carrying anchor base: used to fix on the top of the covering layer; S10. Carrying traction rope: One end of the traction rope passes through the isolation tube and is connected to the hook ring, and the other end extends outside the isolation tube and is fixed to the outside of the anchor base, which is used to pull the stable components.

[0009] As a further preferred embodiment of the present technical solution, debris and vegetation on the construction site need to be cleared before step S1; In step S7, the solidifying material is cement or asphalt, and its thickness is 50 mm to 100 mm; In step S10, the length of the traction rope is adjusted according to the actual conditions of the construction site and the length of the pipeline to ensure the stability of the stabilizing component.

[0010] As a further preferred embodiment of the present technical solution, a water-tightening test step is provided between step S3 and step S4. When shutting off the water, water is first added for a 20-minute test as required, and the water is formally shut off after the water level stabilizes. The water-tightening head should be 2 meters above the top of the upstream pipe of the inspection section, and the average value of the water level drop within 30 minutes is calculated.

[0011] As a further preferred embodiment of the present technical solution, before step S3 is performed, a dense protective film is coated on the outside of the drainage pipe to improve the corrosion resistance and durability of the pipe.

[0012] In the second aspect, in order to improve the technical solution, a municipal drainage pipeline construction device is designed, which is applied in any of the above municipal drainage pipeline construction processes and includes: A load-bearing assembly for movement on the track; Two track beams are installed at both ends of the top of the load-bearing assembly; Two placement components are respectively slidably connected between the two track beams, and the placement components themselves can adjust the inclination angle on the track beam; An assembly component, installed on the top of the placement component, used to push the traction rope into the isolation tube; A stopper assembly, mounted on the side of one of the track beams, used to adjust the position of the drainage pipe and for adding guards to the trench; The limiting component comprises: A placement frame is fixed on the side of one of the track beams, a shield is fixed on the top surface of the placement frame, an electric hydraulic cylinder is installed inside the shield, a push block is fixed on the telescopic end of the electric hydraulic cylinder through the bottom of the shield, and a pair of clamping arms for limiting the drainage pipe are installed on both sides of the outside of the push block and the outside of the shield; The two clamping arms contract or expand as the electric hydraulic cylinder operates. The clamping arms are hollow in design, with one end at the top used for injecting concrete and a gap at the bottom for discharge. The protective piece is formed by continuously filling concrete into the clamping arms during the back-and-forth movement of the bearing assembly.

[0013] As a further preferred embodiment of the present technical solution, the clamping arm is a shovel-shaped limiting claw arm, a connecting valve pipe for receiving concrete is fixed to one end of the top of the limiting claw arm, a discharge port is provided on one side of the bottom of the limiting claw arm, and a plurality of hinge grooves are provided at the other end of the top of the limiting claw arm.

[0014] As a further preferred embodiment of the technical solution, two unconnected sliding notches are respectively provided at the bottom ends of both sides of the outer side of the shield, and first traction arms capable of rotation are respectively slidably connected in the two sliding notches, and second traction arms are respectively hinged at both ends of both sides of the outer side of the pushing block; The first traction arm and the second traction arm at the same position respectively have corresponding hinge grooves adapted thereto.

[0015] As a further preferred embodiment of the present technical solution, the bearing assembly includes: A stable frame is provided, wherein track wheels matching the track are installed inside the stable frame, assembly arms are fixed on both sides of the top of the stable frame, shock-absorbing brackets capable of adjusting positions are installed at both ends of the top of the assembly arms, and the two track beams are installed on the tops of the two shock-absorbing brackets respectively.

[0016] As a further preferred embodiment of the present technical solution, the placement component includes: The crossbeam has adjusting pieces installed on both ends of the crossbeam respectively, which are slidably installed on the top of the track beam. The adjusting pieces can make the crossbeam move on the track beam and adjust the offset angle of the crossbeam.

[0017] As a further preferred embodiment of the present technical solution, the assembly component comprises: An electric telescopic seat is slidably connected to the top between the two beams, and the electric telescopic seat can automatically adjust its position on the top of the beam. A winder is installed at one end of the top of the electric telescopic seat, and a telescopic frame is installed at the other end of the top. A telescopic sleeve column is installed in the telescopic frame, which is telescopic and retractable along with the telescopic frame. The telescopic sleeve is used for winding the traction rope, and one end of the telescopic sleeve is fixed to the output end of the winder.

[0018] Compared with the prior art, the present invention has the following beneficial effects: This municipal drainage pipe construction process adds stabilizing components to the pipe construction equipment. On the one hand, the stabilizing components reduce the vibration generated by the operation of the pipe construction equipment. On the other hand, reinforcement parts extending to the outside of the pipe can be added, which effectively prevents the buried household drainage pipe from being damaged by the backfill soil and ensures the slope requirements of the buried drainage pipe. Even if the backfill soil sinks, the normal use of the buried drainage pipe can still be guaranteed.

[0019] In addition, the pipeline construction equipment is equipped with adjustable functions, namely the settings of horizontal height conditions and the first and tail end position adjustments, which makes the construction process more flexible, able to adapt to different terrains and environmental conditions, and improves construction efficiency and quality.

[0020] At the same time, by adding a water-tightness test step during the construction process and applying anti-corrosion paint or protective film, the anti-corrosion performance and durability of the drainage pipes are effectively improved, and the service life of the pipes is extended.

[0021] In addition, the municipal drainage pipe construction device designed by the present invention realizes the precise installation and position adjustment of the drainage pipe through the coordinated action of the limiting component and the bearing component, and finally forms a protective part by filling concrete outside the pipe with the limiting claw arm, so that the protective part can be closer to the specification size of the drainage pipe during the process of filling concrete, thereby ensuring the accuracy of the pipe construction to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a construction process flow chart of the present invention.

[0023] Figure 2 An isometric view of the present invention.

[0024] Figure 3 It is a structural composition diagram of the load-bearing assembly of the present invention.

[0025] Figure 4 It is a structural composition diagram of the limiting component of the present invention.

[0026] Figure 5 It is a bottom structural diagram of the limiting claw arm of the present invention.

[0027] Figure 6 It is a structural composition diagram of the assembly components of the present invention.

[0028] Figure 7 It is an assembly diagram of the placement components, assembly components and track beams of the present invention.

[0029] Figure 8 This is a structural diagram of the placement components of the present invention.

[0030] In the figure: 1. bearing assembly; 101. stabilizing frame; 102. assembly arm; 103. track wheel; 104. buffer beam; 105. loading sleeve; 106. sleeve arm; 107. reinforcement rod; 108. carrying seat; 109. traction hook arm; 110. shock absorber; 2. limit assembly; 201. placement frame; 202. electric hydraulic cylinder; 203. shield; 204. first traction arm; 205. sliding notch; 206. push block; 207. limit claw arm; 208. second traction arm; 209. connecting valve pipe; 210. Discharge port; 211, hinged groove; 3, assembly components; 301, holder; 302, telescopic frame; 303, telescopic sleeve; 304, rope; 305, winder; 306, guide wheel; 307, two-way telescopic rod; 308, motor; 4, placement components; 401, beam; 402, slide; 403, guardrail; 404, connecting seat; 405, adjusting wheel; 406, carrying cylinder; 407, hinged cover; 408, connecting arm; 409, carrying shaft; 410, adjusting motor; 411, connecting gap; 5, track beam. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the first aspect, the invention provides a technical solution: Figure 1It can be seen that the municipal drainage pipe construction process includes the following steps: S1. Digging trenches: According to the design requirements and drawings, mark the location of the drainage pipe on the ground, and use an excavator to dig a trench of appropriate depth and width according to the markings, and lay tracks for the operation of construction equipment in the trench; this step is used to provide a stable construction environment and lay the foundation for subsequent construction steps. S2. Installing stable components: Install stable components for supporting the drainage pipe inside the trench; this step is used to ensure the stability and accuracy of the pipe during the construction process. S3. Laying drainage pipes: Place the prefabricated drainage pipes into the trench according to the design requirements to ensure a firm and reliable connection between the drainage pipes; S4. Adding protective parts: Based on the stable components, protective parts for blocking the contact between the pipes and the soil are installed on both sides of the outside of the drainage pipes, and protective materials that bury the drainage pipes are filled on the top of the two protective parts; S5. Installing isolation pipes: Several isolation pipes are installed on the top of the protective parts, and hooks and rings are installed in the isolation pipes; S6. Removing the tracks and construction equipment; S7. Backfilling the trench: On the Pour a layer of concrete or any one of the solidifying materials on top of the protective part to form a covering layer that wraps the isolation pipe, and the covering layer will fill the entire trench; S8, compact the covering layer: use a vibrating rod or a flat vibrator to evenly compact the covering layer to ensure that the covering layer is dense and prevent the drainage pipe from deforming due to soil pressure; S9, carry the anchor base: used to be fixed on the top of the covering layer; S10, carry the traction rope: one end of the traction rope passes through the isolation pipe and is connected to the hook ring, and the other end extends outside the isolation pipe and is fixed to the outside of the anchor base, which is used to pull the stable components.

[0033] As a specific implementation method, before step S1, debris and vegetation on the construction site need to be cleared; in step S7, the solidifying material is cement or asphalt, and its thickness is 50mm to 100mm; in step S10, the length of the traction rope is adjusted according to the actual situation of the construction site and the length of the pipeline to ensure the stability of the stabilizing component.

[0034] As a specific implementation method, a water-tightening test step is provided between step S3 and step S4. When shutting off the water, water is first added for a 20-minute test as required, and the water is formally shut off after the water level stabilizes. The water-tightening head should be 2 meters above the top of the upstream pipe of the inspection section, and the average value of the water level drop within 30 minutes is calculated.

[0035] As a specific implementation, before step S3 is performed, a dense protective film is coated on the outside of the drainage pipe to improve the corrosion resistance and durability of the pipe.

[0036] Secondly, in order to improve this technical solution, a new technical solution is proposed, referring to Figure 2~Figure 8It can be seen that a municipal drainage pipe construction device is used in the above-mentioned municipal drainage pipe construction process and includes: a bearing component 1, used to move on a track; two track beams 5, respectively installed at the two ends of the top of the bearing component 1; two placement components 4, respectively slidably connected between the two track beams 5, and capable of adjusting the inclination angle themselves; an assembly component 3, installed on the top of the placement component 4, used to push the traction rope into the isolation pipe; a limiting component 2, installed on the side of one of the track beams 5, used to adjust the position of the drainage pipe and for adding protective parts to the groove.

[0037] As a specific embodiment, the limiting component 2 includes: a mounting frame 201, which is fixed on the side of one of the track beams 5, a protective cover 203 is fixed on the top surface of the mounting frame 201, an electric hydraulic cylinder 202 is installed inside the protective cover 203, and the telescopic end of the electric hydraulic cylinder 202 passes through the bottom of the protective cover 203 and is fixed with a pushing block 206, and both sides of the outside of the pushing block 206 and the two sides of the outside of the protective cover 203 are jointly installed with a pair of clamping arms for limiting the drainage pipe, wherein the two clamping arms shrink or expand with the operation of the electric hydraulic cylinder 202, the clamping arm is of hollow design, one end of the top is used for injecting concrete, and a notch for discharge is opened at the bottom, and the protective piece is formed by continuously filling concrete into the inside of the clamping arm during the back and forth movement of the bearing component 1.

[0038] As a specific implementation, the clamping arm is a shovel-shaped limiting claw arm 207, one end of the top of the limiting claw arm 207 is fixed with a connecting valve pipe 209 for receiving concrete, one side of the bottom of the limiting claw arm 207 is provided with a discharge port 210, and the other end of the top of the limiting claw arm 207 is provided with multiple hinge grooves 211.

[0039] As a specific implementation, two unconnected sliding notches 205 are respectively provided at the bottom ends on both sides of the exterior of the protective cover 203, and first traction arms 204 capable of rotation are respectively slidably connected in the two sliding notches 205, and second traction arms 208 are respectively hinged at both ends on both sides of the exterior of the pushing block 206; the first traction arm 204 and the second traction arm 208 at the same position each have a corresponding hinge groove 211 adapted thereto.

[0040] As a specific implementation, the bearing assembly 1 includes a stable frame 101, a track wheel 103 adapted to the track is installed inside the stable frame 101, assembly arms 102 are fixed to both sides of the top of the stable frame 101, shock-absorbing brackets capable of adjusting the position are installed at both ends of the top of the assembly arm 102, and two track beams 5 are respectively installed on the top of the two shock-absorbing brackets. It should be supplemented that buffer beams 104 for earthquake resistance are respectively fixed around the outside of the top of the stable frame 101, and the buffer beams 104 together with the assembly arm 102 form a stable triangular structure. In addition, it should be noted that the shock-absorbing bracket includes: a loading sleeve 105, which is provided with four, and the four loading sleeves 105 are respectively fixed on the two mounting At both ends of the top of the supporting arm 102, the internal sliding connection of the loading sleeve 105 is provided with a carrying seat 108, the top of the carrying seat 108 is provided with a shock absorber 110, the top of the shock absorber 110 is fixed with a sleeve arm 106, the sleeve arm 106 is adapted to the track beam 5, and finally it should be added that in the present application, a reinforcing rod 107 is provided inside the stable frame 101, the reinforcing rod 107 is provided between the stable frame 101 and the assembly arm 102, and the three form a stable triangular structure, and in addition, a towing hook arm 109 is fixed at one end of the two assembly arms 102, the towing hook arm 109 is used to connect the load-bearing assembly 1 and the electric tractor, it should be noted that the electric tractor and the load-bearing assembly 1 are connected by means of a steel rope.

[0041] As a specific implementation, the placement component 4 includes: a crossbeam 401, a slide groove 402 adapted to the guide wheel 306 is opened on one side of the top of the crossbeam 401, a guardrail 403 is installed on the other side of the top of the crossbeam 401, and both ends of the crossbeam 401 are respectively installed with adjustment members slidably installed on the top of the track beam 5, and the adjustment members can move the crossbeam 401 on the track beam 5 and adjust the offset angle of the crossbeam 401. It should be noted that in the present application, the adjustment member includes: a carrying tube 406, a connecting notch 411 is opened at one end of the curved surface of the carrying tube 406, and a connecting seat 404 for installation on the track beam 5 is installed at the other end of the curved surface, and an electric adjustment wheel 405 is installed inside the connecting seat 404, such as Figure 8 As shown, an adjusting motor 410 is installed on one side of the carrying tube 406, and the output end of the adjusting motor 410 is arranged inside the carrying tube 406 and is installed with a carrying shaft 409, and a connecting arm 408 fixed to the crossbeam 401 is installed outside the carrying shaft 409. It should be noted that the connecting arm 408 is connected to the crossbeam 401 through a connecting notch 411. For this reason, in order to facilitate the maintenance of the carrying shaft 409, the side of the carrying tube 406 away from the adjusting motor 410 is designed to be detachable, and the disassembly part of this side is a hinged cover 407, and the hinged cover 407 and the carrying tube 406 are threadedly connected.

[0042] As a specific embodiment, the assembly component 3 includes: an electric telescopic seat slidably connected to the top between two beams 401, the electric telescopic seat can automatically adjust its position on the top of the beam 401, a winder 305 is installed at one end of the top of the electric telescopic seat, a telescopic frame 302 is installed at the other end of the top, and a telescopic sleeve 303 is installed inside the telescopic frame 302, which is telescopic along with the telescopic frame 302; the telescopic sleeve 303 is used to wind the traction rope, in this application, the traction rope is a high-strength rope 304, and one end of the telescopic sleeve 303 is fixed to the output end of the winder 305. It should be added that the electric telescopic seat includes: two clamping seats 301, the bottom ends of the two clamping seats 301 are respectively installed with guide wheels 306, one of the guide wheels 306 has a motor 308 fixed on the clamping seat 301 at the same position, and a two-way telescopic rod 307 is installed between the two clamping seats 301.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Municipal drainage pipeline construction process, characterized in that: The following steps are involved: S1. Digging trenches: According to the design requirements and drawings, mark the location of the drainage pipes on the ground, use an excavator to dig trenches of appropriate depth and width according to the markings, and lay tracks in the trenches for the operation of the construction equipment; S2. Installing stabilizing components: Installing stabilizing components for supporting the drainage pipe inside the groove; S3. Laying drainage pipes: Place the prefabricated drainage pipes into the trenches according to the design requirements to ensure that the connections between the drainage pipes are firm and reliable; S4. Add protective parts: Based on the stable components, protective parts for blocking the contact between the pipe and the soil are installed on both sides of the outside of the drainage pipe, and protective materials for burying the drainage pipe are filled on the top of the two protective parts; S5. Equipped with isolation tubes: Several isolation tubes are installed on the top of the protective element, and hooks are installed in the isolation tubes of the protective element; S6. Remove the tracks and construction equipment; S7. Backfill the trench: pour a layer of concrete or any one of the solidifying materials on the top of the protective member to form a covering layer that wraps the isolation pipe, and the covering layer will fill the entire trench; S8. Compact the covering layer: Use a vibrating rod or a flat vibrator to evenly compact the covering layer to ensure that the covering layer is dense and prevent the drainage pipe from being deformed due to soil pressure; S9, carrying anchor base: used to fix on the top of the covering layer; S10. Carrying traction rope: One end of the traction rope passes through the isolation tube and is connected to the hook ring, and the other end extends outside the isolation tube and is fixed to the outside of the anchor base, which is used to pull the stable components.

2. The municipal drainage pipeline construction process according to claim 1, characterized in that: Before step S1, debris and vegetation on the construction site need to be cleared; In step S7, the solidifying material is cement or asphalt, and its thickness is 50 mm to 100 mm; In step S10, the length of the traction rope is adjusted according to the actual conditions of the construction site and the length of the pipeline to ensure the stability of the stabilizing component.

3. The municipal drainage pipeline construction process according to claim 1, characterized in that: A water-tightening test step is provided between step S3 and step S4. When the water is shut off, water is first added for a 20-minute test as required, and the water is formally shut off after the water level stabilizes. The water-tightening head should be 2 meters above the top of the upstream pipe of the inspection section, and the average value of the water level drop within 30 minutes is calculated.

4. The municipal drainage pipeline construction process according to claim 1, characterized in that: Before step S3 is performed, a dense protective film is coated on the outside of the drainage pipe to improve the corrosion resistance and durability of the pipe.

5. A municipal drainage pipeline construction device, used in any municipal drainage pipeline construction process of claims 1-4, characterized in that: include: A bearing assembly (1) for moving on a track; Two track beams (5) are respectively installed at two ends of the top of the bearing assembly (1); Two placement assemblies (4) are respectively slidably connected between two track beams (5), and the placement assemblies (4) themselves are capable of adjusting an inclination angle on the track beams (5); An assembly component (3) is installed on top of the placement component (4) and is used to push the traction rope into the isolation tube; A limit assembly (2) is installed on the side of one of the track beams (5) and is used to adjust the position of the drainage pipe and to add a protective member into the groove; The limiting component (2) comprises: A mounting frame (201) is fixed on the side of one of the track beams (5); a protective cover (203) is fixed on the top surface of the mounting frame (201); an electric hydraulic cylinder (202) is installed inside the protective cover (203); a push block (206) is fixed on the telescopic end of the electric hydraulic cylinder (202) through the bottom of the protective cover (203); a pair of clamping arms for limiting the position of the drainage pipe are installed on both sides of the outside of the push block (206) and the outside of the protective cover (203); The two clamping arms contract or expand as the electric hydraulic cylinder (202) operates. The clamping arms are hollow in design, with one end at the top used for injecting concrete and a notch at the bottom for discharge. The protective piece is formed by continuously filling concrete into the clamping arms during the back-and-forth movement of the bearing assembly (1).

6. A municipal drainage pipeline construction device according to claim 5, characterized in that: The clamping arm is a shovel-shaped limiting claw arm (207), one end of the top of the limiting claw arm (207) is fixed with a connecting valve pipe (209) for receiving concrete, one side of the bottom of the limiting claw arm (207) is provided with a discharge port (210), and the other end of the top of the limiting claw arm (207) is provided with a plurality of hinge grooves (211).

7. A municipal drainage pipeline construction device according to claim 6, characterized in that: The bottom ends of both sides of the outer side of the shield (203) are respectively provided with two unconnected sliding notches (205), and the two sliding notches (205) are respectively slidably connected with a rotatable first traction arm (204), and the two ends of both sides of the outer side of the pushing block (206) are respectively hinged with a second traction arm (208); The first traction arm (204) and the second traction arm (208) at the same position each have a corresponding hinge groove (211) adapted thereto.

8. A municipal drainage pipeline construction device according to claim 5, characterized in that: The bearing assembly (1) comprises: A stable frame (101) is provided, wherein track wheels (103) adapted to the track are interspersed and installed inside the stable frame (101), assembly arms (102) are respectively fixed on both sides of the top of the stable frame (101), shock-absorbing brackets capable of adjusting positions are respectively installed at both ends of the top of the assembly arms (102), and the two track beams (5) are respectively installed on the tops of the two shock-absorbing brackets.

9. A municipal drainage pipeline construction device according to claim 8, characterized in that: The placement component (4) comprises: The crossbeam (401) has adjusting members slidably mounted on the top of the track beam (5) at both ends thereof, and the adjusting members can move the crossbeam (401) on the track beam (5) and adjust the offset angle of the crossbeam (401).

10. A municipal drainage pipeline construction device according to claim 9, characterized in that: The assembly component (3) comprises: An electric telescopic seat is slidably connected to the top between the two beams (401), and the electric telescopic seat can automatically adjust its position on the top of the beam (401); a winding machine (305) is installed at one end of the top of the electric telescopic seat, and a telescopic frame (302) is installed at the other end of the top; a telescopic sleeve column (303) is installed in the telescopic frame (302) and is telescopic and retractable along with the telescopic frame (302); The telescopic sleeve (303) is used for winding the traction rope, and one end of the telescopic sleeve (303) is fixed to the output end of the winding machine (305).

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