Pipe gallery cross docking interface

Abstract

The application belongs to the field of urban underground comprehensive pipe gallery construction, and particularly relates to a pipe gallery cross butt joint, which comprises a connecting assembly, a supporting assembly and a leveling assembly; the connecting assembly is arranged at opposite end faces of a pipeline and used for realizing seamless butt joint of a built pipe gallery pipeline joint; the supporting assembly is arranged at the outer periphery of the pipeline and cooperates with a longitudinal limiting structure to realize support and fixation of the pipeline; the leveling assembly is arranged in a power line channel; the pipe gallery assembly is composed of a pipeline combination body, the end of the pipeline combination body is butted with the end of the built pipe gallery, and the pipeline combination body is prefabricated by concrete pouring. The application sets an adjustable leveling assembly in the power line channel, drives the support plate to ascend and descend by using the leveling screw rod, and combines the sliding guide groove and the rotary connection structure, so that the laying path of the high-voltage cable can be finely adjusted in the installation stage, and problems such as cable bending and stress concentration caused by elevation deviation can be avoided.

Description

Technical Field

[0001] This application belongs to the field of urban underground integrated pipe gallery construction, specifically a pipe gallery intersection interface. Background Technology

[0002] With the acceleration of urbanization in my country, underground integrated utility tunnels, as an important infrastructure for the intensive laying of municipal pipelines such as electricity, communication, water supply and drainage, are being built on an increasingly larger scale. In the process of extending, branching or regional networking of the utility tunnel system, it is often necessary to connect the newly built utility tunnels with the existing ones in order to achieve the continuous connection of the pipeline system.

[0003] Common pipe rack connection methods in existing technologies mainly include direct welding connection, bolt flange connection, or socket rubber ring sealing connection. However, due to factors such as geological settlement, construction errors, and pipe rack structural characteristics, problems such as axis misalignment, elevation inconsistency, and sealing failure often occur during the connection process between newly built pipe racks and existing pipe racks. Moreover, when connecting high-voltage cable channels, if the cable trays cannot be guaranteed to be on the same horizontal plane, it is easy to cause cable bending and local stress concentration. Under long-term operation, this may lead to insulation layer damage, joint overheating, or even short circuit accidents, which will affect the quality of cable laying and create safety hazards. Therefore, it is necessary to design a pipe rack cross-connection interface to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies by designing a pipe gallery cross-connection interface by installing adjustable leveling components within the power line corridor, thereby solving the problems of cable bending and stress concentration caused by elevation deviation.

[0005] To achieve the above objectives, the following technical solution is adopted: A pipe gallery intersection interface includes a connecting component, a supporting component, and a leveling component; The connecting components are located on both opposite ends of the pipe to achieve seamless connection with the pipe interface of the existing pipe gallery. The supporting components are located on the outer periphery of the pipe and cooperate with the longitudinal limiting structure to support and fix the pipe. The leveling components are located inside the power line channel.

[0006] Preferably, it also includes a pipeline assembly, the end of which is connected to the end of the existing pipe gallery. The pipeline assembly is precast by concrete casting. The pipeline assembly has reserved pipeline installation channels and power line channels inside. The connecting component is set at the joint between the pipeline assembly and the existing pipe gallery. The supporting component is located inside the pipeline installation channel. The leveling component is located inside the power line channel.

[0007] Preferably, the connection assembly includes a flange connector fixed around the outer periphery of the pipe end and a sealing ring groove disposed on the end face of the flange connector. The flange connector has a plurality of connection holes evenly distributed along the circumferential direction, and a sealing rubber ring is embedded in the sealing ring groove.

[0008] Preferably, the sealing ring has a trapezoidal cross-section and is made of silicone.

[0009] Preferably, the support assembly includes a support base located at the bottom of the inner wall of the pipe installation channel. The support base is formed by filling concrete or mortar on site. A U-shaped pipe clamp for positioning the pipe is detachably connected to the top of the support base. The U-shaped pipe clamp is detachably connected to the support base by a fastener.

[0010] Preferably, the leveling assembly includes a plurality of leveling bases spaced apart along the extension direction of the pipe assembly. Each leveling base has a vertically oriented adjusting screw hole. A leveling screw is threaded into each adjusting screw hole. A support plate is rotatably connected to the bottom of the leveling screw. The left side of the support plate is slidably connected to the right inner wall of the leveling base.

[0011] Compared with the prior art, the beneficial effects of this application are: 1. This application, by setting an adjustable leveling component in the power line channel, uses a leveling screw to drive the support plate to rise and fall. Combined with the sliding guide groove and rotating connection structure, the laying path of high-voltage cables can be finely adjusted during the installation stage to ensure that they are on the same horizontal reference plane as the cable trays in the existing pipe gallery. This avoids problems such as cable bending and stress concentration caused by elevation deviation, and significantly improves the safety and lifespan of the power system.

[0012] 2. The pipeline assembly of this application adopts precast concrete as a whole, with a multi-channel layout inside, supporting the synchronous connection of multiple pipelines such as power and water supply and drainage. It is suitable for engineering scenarios where power pipelines are synchronously connected during the branch connection of urban integrated pipe corridor expansion. Through the support base cast on site, the design elevation of the pipeline can be determined by leveling the base, and the U-shaped pipe clamps connected by bolts can be quickly installed and disassembled, which is convenient for later pipeline inspection, replacement or expansion, and solves the problem of difficult maintenance of traditional fixed supports. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a cross-sectional schematic diagram of this application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the leveling component in this application.

[0014] Among them, 10. Pipe assembly; 11. Pipe installation channel; 12. Power line channel; 20. Connecting component; 21. Flange connector; 22. Sealing ring groove; 23. Connecting hole; 24. Sealing ring; 30. Support component; 31. Support base; 32. U-shaped pipe clamp; 33. Fixing component; 40. Leveling component; 41. Leveling base; 42. Adjusting screw hole; 43. Leveling screw; 44. Support plate; 5. Pipe; 6. High-voltage cable. Detailed Implementation

[0015] Reference Figure 1 - Figure 4 A pipe gallery cross-connection interface is used to realize a high-precision, high-strength, and reliable sealed mechanical connection between the pipe assembly 10 of the newly built pipe gallery and the existing pipe gallery. This structure is particularly suitable for engineering scenarios in which multiple types of pipelines such as power and pipeline 5 are synchronously connected during the expansion or branch connection of urban underground integrated pipe gallery systems. It includes a connection component 20, a support component 30, and a leveling component 40. The connecting component 20 is located on both opposite ends of the pipe 5 to achieve seamless connection with the interface of the existing pipe gallery pipe 5. The supporting component 30 is located on the outer periphery of the pipe 5 and cooperates with the longitudinal limiting structure to support and fix the pipe 5. The leveling component 40 is located inside the power line channel 12.

[0016] In this embodiment, during actual construction, after the pipeline assembly 10 is installed in place using the shield tunneling method or the open-cut method, its two ends are respectively connected to the ends of the existing pipe gallery. To ensure that the high-voltage power lines remain smooth and without height difference at the connection point, backfill soil or gravel material can be locally placed at the bottom of the pipeline assembly 10 during the installation process to finely adjust its overall elevation, so that the high-voltage cable 6 in the internal power line channel 12 is at the same horizontal level as the corresponding line in the existing pipe gallery. This avoids bending stress or suspension of the cable due to height misalignment, ensuring long-term operational safety. After the connection is completed, the pipeline assembly 10 and the pipeline 5 of the existing pipe gallery are connected by the connecting component 20 to form a continuous structure. The internal pipeline 5 and the high-voltage cable 6 are fixed by the support component 30 and the leveling component 40, respectively. The entire connection area tends to stabilize under the pressure of the external backfill soil. The sealing structure of the connecting component 20 plays a role in ensuring the airtightness and watertightness of the pipe gallery system.

[0017] As a preferred method, the pipeline assembly 10 is also included. The end of the pipeline assembly 10 is connected to the end of the existing pipe gallery. The pipeline assembly 10 is precast by concrete casting, and is formed by on-site casting or factory prefabrication. It has good integrity and durability. The pipeline assembly 10 has reserved pipeline installation channels 11 and power line channels 12 inside, which are used to lay municipal pipelines 5 such as water supply and drainage and heating, as well as high-voltage cables 6, respectively. When connecting to the existing pipe gallery, soil is placed at the bottom of the pipeline assembly 10 so that the high-voltage lines in the pipeline assembly 10 are at the same level as the high-voltage lines in the existing pipe gallery.

[0018] As a preferred embodiment, the connecting assembly 20 includes a flange connector 21 fixed around the outer periphery of the end of the pipe 5 and a sealing ring groove 22 disposed on the end face of the flange connector 21. The flange connector 21 has multiple connecting holes 23 evenly distributed along the circumference for fastening to the docking flange of the already constructed pipe 5 with bolts. The sealing ring groove 22 is inlaid with a sealing rubber ring 24 to form a seal with the end of the existing pipe gallery during docking, preventing groundwater or debris from entering the pipe gallery. The prefabricated pipe assembly 10 is hoisted to the design position, and the elevation is roughly adjusted by using bottom soil padding to ensure that its axis is basically aligned with the existing pipe gallery, especially ensuring that the bottom elevation of the power line channel 12 is consistent with the existing section. The connecting assemblies 20 at both ends of the pipe assembly 10 fit with the docking flanges at the ends of the existing pipe gallery. The multiple connecting holes 23 on the flange connector 21 are aligned with the bolt holes of the existing side flange. High-strength bolts are inserted and tightened to form a rigid connection.

[0019] As a preferred method, the sealing ring 24 has a trapezoidal cross-section and is made of silicone. The sealing ring 24 has a metal skeleton inside to enhance its strength and elasticity and ensure a sealing effect. The sealing ring 24 with a trapezoidal cross-section is set between the mating surfaces. The sealing ring 24 is made of silicone and has excellent weather resistance and compression resilience. The sealing ring 24 has an embedded annular metal skeleton to prevent extrusion deformation under high pressure. When the flange bolts are tightened, the trapezoidal sealing ring 24 is compressed and tightly fills the joint, forming a double waterproof barrier to effectively prevent groundwater, silt and harmful gases from entering the pipe gallery.

[0020] As a preferred embodiment, the support assembly 30 includes a support base 31 located at the bottom of the inner wall of the pipe installation channel 11. The support base 31 is formed by on-site filling with concrete or mortar and is used to maintain the pipe 5 at the same design elevation as the pipe 5 in the existing pipe gallery. A U-shaped pipe clamp 32 for positioning the pipe 5 is detachably connected to the top of the support base 31. The U-shaped pipe clamp 32 is detachably connected to the support base 31 by a fastener 33. The support assembly 30 is set in the pipe installation channel 11. The on-site cast support base 31 is located at the bottom of the pipe installation channel 11, and its top surface is leveled according to the design slope to ensure that the pipe 5 meets the drainage requirements after laying and is consistent with the elevation of the existing section. The U-shaped pipe clamp 32 is installed on the support base 31 by a fastener 33 such as expansion bolts or embedded parts. The detachable design of the U-shaped pipe clamp 32 facilitates later maintenance and replacement. The U-shaped structure fits the outer wall of the pipe 5 to prevent displacement due to vibration or thermal expansion and contraction during operation, realizing the dual functions of vertical bearing and lateral limiting of the pipe 5.

[0021] As a preferred embodiment, the leveling assembly 40 includes multiple leveling bases 41 spaced apart along the extension direction of the pipe assembly 10. Each leveling base 41 has a vertically oriented adjusting screw hole 42, with a leveling screw 43 internally threaded into each adjusting screw hole 42. A support plate 44 is rotatably connected to the bottom of the leveling screw 43. The left side of the support plate 44 is slidably connected to the right inner wall of the leveling base 41. The support plate 44 has a through hole for passing through and fixing the high-voltage cable 6. The leveling assembly 40 is installed inside the power line channel 12 to finally calibrate the laying path of the high-voltage cable 6. The multiple leveling bases 41 are arranged at equal intervals along the axial direction of the pipe gallery, with a recommended spacing of 800mm to 1200mm. Each leveling base... The base 41 is provided with a vertical adjustment screw hole 42. The leveling screw 43 is screwed into the adjustment screw hole 42. When the leveling screw 43 is rotated, the leveling screw 43 and the adjustment screw hole 42 work together to allow the support plate 44 to move up and down to adjust its height, so that it can be consistent with the height of the high-voltage cable 6 in the existing pipe gallery. The left side of the support plate 44 is slidably embedded into the guide groove on the right inner wall of the leveling base 41 to ensure that the lifting process is stable and does not deviate. A through hole is opened in the center of the support plate 44. The high-voltage cable 6 passes through the hole and is fixed with a clamp to form a flexible suspension support. By rotating the leveling screw 43, the height of the support plate 44 can be finely adjusted with an accuracy of ±1mm, thereby accurately controlling the cable route and ensuring that it remains horizontal and free of deflection in the docking area.

Claims

1. A pipe gallery intersection interface, characterized in that, It includes a connecting component (20), a supporting component (30), and a leveling component (40); The connecting component (20) is located on both opposite ends of the pipe (5) to achieve seamless connection of the interface of the existing pipe gallery pipe (5). The supporting component (30) is located on the outer periphery of the pipe (5) and cooperates with the longitudinal limiting structure to support and fix the pipe (5). The leveling component (40) is located inside the power line channel (12).

2. The pipe gallery cross-connection interface according to claim 1, characterized in that: It also includes a pipe assembly (10), the end of which is connected to the end of the existing pipe gallery. The pipe assembly (10) is precast by concrete pouring. The pipe assembly (10) has a reserved pipe installation channel (11) and a power line channel (12) inside. When connecting to the existing pipe gallery, soil is placed at the bottom of the pipe assembly (10) so that the high voltage line inside the pipe assembly (10) is at the same level as the high voltage line inside the existing pipe gallery. The connecting component (20) is set at the joint between the pipe assembly (10) and the existing pipe gallery. The supporting component (30) is located inside the pipe installation channel (11). The leveling component (40) is located inside the power line channel (12).

3. The pipe gallery cross-connection interface according to claim 1, characterized in that: The connecting assembly (20) includes a flange connector (21) that is fixed around the outer periphery of the end of the pipe (5) and a sealing ring groove (22) provided on the end face of the flange connector (21). The flange connector (21) has a plurality of connecting holes (23) evenly distributed along the circumference for fastening to the flange of the pipe (5) that has been constructed by bolts. The sealing ring groove (22) is inlaid with a sealing rubber ring (24) for forming a seal with the end of the constructed pipe gallery during docking to prevent groundwater or debris from entering the pipe gallery.

4. A pipe gallery intersection interface according to claim 3, characterized in that: The sealing ring (24) has a trapezoidal cross-section and is made of silicone. The sealing ring (24) has a metal skeleton inside to enhance its strength and elasticity and ensure a sealing effect.

5. A pipe gallery cross-connection interface according to claim 1, characterized in that: The support assembly (30) includes a support base (31) located at the bottom of the inner wall of the pipe installation channel (11). The support base (31) is formed by filling concrete or mortar on site and is used to keep the pipe (5) at the same design elevation as the pipe (5) in the existing pipe gallery. The top of the support base (31) is detachably connected to a U-shaped pipe clamp (32) for positioning the pipe (5). The U-shaped pipe clamp (32) is detachably connected to the support base (31) by a fastener (33).

6. A pipe gallery cross-connection interface according to claim 1, characterized in that: The leveling assembly (40) includes a plurality of leveling bases (41) spaced apart along the extension direction of the pipe assembly (10). The leveling bases (41) are provided with vertical adjustment screw holes (42). The adjustment screw holes (42) are internally threaded with leveling screws (43). The bottom of the leveling screws (43) is rotatably connected to a support plate (44). The left side of the support plate (44) is slidably connected to the right inner wall of the leveling bases (41). The support plate (44) is provided with a through hole that passes through the support plate (44). The through hole is used to pass through and fix the high-voltage cable (6).

Images