Municipal road pipeline protection structure

Abstract

The invention discloses a municipal road pipeline protection structure, and relates to the technical field of municipal road pipelines, the municipal road pipeline protection structure has the advantage of avoiding water resource loss and negative influence on the environment caused by pipeline leakage, and the municipal road pipeline protection structure is characterized by comprising an inner pipe for conveying liquid, and further comprising a protection mechanism, comprising an auxiliary pipe arranged on the side of a protective outer pipe disc, the auxiliary pipe is communicated with the protective outer pipe through a plurality of evenly-arranged guide pipes, one end of each guide pipe is fixedly connected with the outer wall of the circumference of the protective outer pipe, and the other end of each guide pipe is fixedly connected with the outer wall of the circumference of the protective outer pipe. The other end of the guide pipe penetrates into an inner cavity of the auxiliary pipe and is fixedly connected with the auxiliary pipe, and liquid leaked and discharged from the inner pipe enters the auxiliary pipe through the guide pipe and is discharged through the auxiliary pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal road pipelines, and specifically relates to a protection structure for municipal road pipelines. Background Art

[0002] Municipal pipelines are important infrastructure indispensable to modern cities. They are basic industries that have an overall and leading impact on the economic development of cities. They are the backbone of urban water pollution prevention, urban waterlogging drainage, and flood control, and are important symbols for measuring the level of modern cities.

[0003] In related technologies, the construction method of the water conveyance pipeline in the municipal pipeline is generally to use an excavator to dig trenches on both sides of the road before laying the road, then manually cooperate with the excavation, and then lift the pipeline monomer to the trench and complete the splicing of the pipeline monomer. After that, the soil layer is backfilled to ensure the normal use of the pipeline without affecting traffic.

[0004] However, with the increase of the service time, the water conveyance pipeline will leak due to pipeline aging or damage, geological environment stress, temperature difference change and other situations. After the pipeline leaks, a large amount of water resources will be lost, which will have a negative impact on the environment. At the same time, pollutants outside the pipeline will enter the pipeline, resulting in water quality pollution. Summary of the Invention

[0005] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide a protection structure for municipal road pipelines, which has the advantages of avoiding water resource loss caused by pipeline leakage and having a negative impact on the environment.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a protection structure for municipal road pipelines, including an inner pipe for transmitting liquid. The protection structure for municipal road pipelines further includes: A protection mechanism, including a protective outer pipe sleeved outside the inner pipe and arranged coaxially with the inner pipe. A support assembly for supporting the inner pipe is fitted in the inner cavity of the protective outer pipe; A drainage mechanism, including a secondary pipe arranged beside the protective outer pipe. The secondary pipe is communicated with the protective outer pipe through a plurality of uniformly arranged conduits. One end of the conduit is fixedly connected to the circumferential outer wall of the protective outer pipe, and the other end penetrates into the inner cavity of the secondary pipe and is fixedly connected to the secondary pipe. The liquid leaked from the inner pipe will enter the secondary pipe through the conduit and be discharged through the secondary pipe; A check mechanism, including a rubber valve block arranged at one end of the conduit entering the inner cavity of the secondary pipe, which controls the opening and closing of the conduit through the pressure difference generated by the self-flow of the medium.

[0007] By adopting the above technical solution, the inner tube is used to transport liquid, and the protective outer tube is sleeved outside the inner tube as an external protective layer of the inner tube to protect the inner tube from damage by the external environment. The protective outer tube and the inner tube are supported and connected by a support assembly. When the pipeline ages, the inner tube interface loosens and is damaged, or the temperature difference changes, resulting in leakage of the inner tube, the liquid enters the gap between the protective outer tube and the inner tube from the leakage point. The protective outer tube, the conduit, and the auxiliary tube are interconnected. The liquid that enters the gap between the protective outer tube and the inner tube enters the auxiliary tube through the conduit and is discharged and collected through the auxiliary tube, without causing large-scale liquid waste. At the same time, the leaked liquid will not have a negative impact on the environment. And due to the function of the protective outer tube, the pollutants outside the protective outer tube will not enter the inner tube to affect the use of the liquid.

[0008] Preferably, the support assembly includes support blocks arranged in the inner cavity of the protective outer tube and integrated with the inner cavity groove wall of the protective outer tube. There are several support blocks, and several support blocks are arranged in an array along the center line of the protective outer tube. The cross-section of the support block is annular, and the inner tube passes through several support blocks and is slidably connected to the support blocks. The center lines of the protective outer tube, the support blocks, and the inner tube coincide.

[0009] Preferably, the circumferential outer wall of the rubber valve block is completely attached to the inner cavity groove wall of the conduit. One end of the rubber valve block is an inclined surface, and a circular groove is opened at the other end. An arc-shaped block is arranged at the end of the conduit entering the inner cavity of the auxiliary tube. A clamping groove is opened on the side of the arc-shaped block facing the conduit. The arc-shaped block is nested outside the rubber valve block and the conduit through the clamping groove and is fixedly connected to the upper side edges of the conduit and the rubber valve block.

[0010] Preferably, a number of maintenance slots communicating with the inner cavity of the protective outer tube are opened on the protective outer tube. Each maintenance slot is located between two adjacent support blocks. A maintenance door for closing the maintenance slot is detachably and fixedly connected to the protective outer tube. A replacement assembly for facilitating the disassembly and assembly of the damaged part of the inner tube is provided on the inner tube.

[0011] Preferably, the inner tube is composed of several fixed tubes, assembly tubes, and control tubes. Each fixed tube passes through the support block and is slidably connected to the support block. One end of the fixed tube passing through the support block is fixedly connected to the control tube through a flange, and the other end is fixedly connected to the assembly tube through a flange. The end of the assembly tube far from the fixed tube is fixedly connected to the adjacent control tube through a flange.

[0012] Preferably, the replacement component includes a first connecting pipe integrated with each assembly pipe. One end of the first connecting pipe away from the assembly pipe is connected to a second connecting pipe through a flange. One end of the second connecting pipe away from the first connecting pipe penetrates through the protective outer pipe and is fixedly connected to the protective outer pipe. One end of the second connecting pipe penetrating through the protective outer pipe enters the auxiliary pipe and is fixedly connected to the auxiliary pipe. The auxiliary pipe and the inner pipe are communicated through a number of mutually cooperating first connecting pipes and second connecting pipes. A first control valve for controlling the on-off of the pipeline is provided on each control pipe, and a second control valve for controlling the on-off of the pipeline and located outside the protective outer pipe and the auxiliary pipe is provided on each second connecting pipe.

[0013] Preferably, a shock-absorbing component for reducing the possibility of joint loosening caused by the vibration of the inner pipe is provided on the support block.

[0014] Preferably, the shock-absorbing component includes two arc-shaped grooves opened at one end of the support block. The two arc-shaped grooves are arranged opposite to each other. Two movable grooves arranged opposite to each other and communicated with the ends of the adjacent arc-shaped grooves are also opened on the support block. Each arc-shaped groove is smoothly transitioned with the adjacent movable groove. A short shaft is slidably connected in each movable groove. One end of the short shaft extends out of the movable groove, and the end of the short shaft extending out of the movable groove is fixedly connected to the circumferential outer wall of the fixed pipe.

[0015] Preferably, a rubber annular sealing plate for filling the gap between the protective outer pipe and the fixed pipe is fixed at one end of each support block away from the arc-shaped groove. The protective outer pipe is divided into a number of maintenance cavities by a number of rubber annular sealing plates, and a water leakage sensor is provided in each maintenance cavity.

[0016] Preferably, a number of annular reinforcing ribs are fixed on the circumferential outer wall of the protective outer pipe. The inner cavity of the annular reinforcing rib is hollow, and a number of annular reinforcing ribs are arranged in an array along the center line of the protective outer pipe.

[0017] The beneficial effects of the present invention are as follows: The inner pipe is used for transporting liquid. The protective outer pipe is sleeved outside the inner pipe as an external protective layer of the inner pipe to protect the inner pipe from being damaged by the external environment. The protective outer pipe and the inner pipe are supported and connected through the support assembly. When the inner pipe leaks due to pipeline aging, loosening and damage of the inner pipe interface, temperature difference change, etc., the liquid enters the gap between the protective outer pipe and the inner pipe from the leakage point. The protective outer pipe, the conduit and the auxiliary pipe are mutually communicated. The liquid entering the gap between the protective outer pipe and the inner pipe enters the auxiliary pipe through the conduit and is discharged and collected through the auxiliary pipe, which will not cause large-scale liquid waste. At the same time, the leaked liquid will not have a negative impact on the environment. And due to the function of the protective outer pipe, the pollutants outside the protective outer pipe will not enter the inner pipe to affect the use of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 is the overall structural schematic diagram of this embodiment; Figure 2 is the structural schematic diagram of the cross-section of the protective outer tube of this embodiment; Figure 3 is the structural schematic diagram for embodying the catheter of this embodiment; Figure 4 is of this embodiment Figure 2 is the enlarged structural schematic diagram at position A in; Figure 5 is of this embodiment Figure 2 is the enlarged structural schematic diagram at position B in; Figure 6 is of this embodiment Figure 3 is the enlarged structural schematic diagram at position C in; Figure 7 is the structural schematic diagram for embodying the movable groove of this embodiment; Figure 8 is the structural schematic diagram of the cross-section of the catheter of this embodiment.

[0020] Explanation of reference numerals: In the figure: 1, inner tube; 101, fixed tube; 102, assembly tube; 103, control tube; 2, protective outer tube; 3, support assembly; 301, support block; 302, arc groove; 303, movable groove; 304, short axis; 4, auxiliary tube; 5, catheter; 6, rubber valve block; 601, inclined surface; 602, circular groove; 7, arc-shaped clamping block; 701, clamping groove; 8, replacement assembly; 801, first connecting tube; 802, second connecting tube; 9, rubber annular sealing plate; 10, maintenance cavity; 11, annular reinforcing rib. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] A municipal road pipeline protection structure, as Figure 1-8, including an inner pipe 1 for transporting liquid. One end of the inner pipe 1 is connected to a water supply pipe, and the other end is connected to a water-using pipe. The inner pipe 1 is used to transport liquid. A protective outer pipe 2 is sleeved outside the inner pipe 1. A number of annular reinforcing ribs 11 are fixed on the circumferential outer wall of the protective outer pipe 2. The inner cavity of the annular reinforcing ribs 11 is hollow, and a number of annular reinforcing ribs 11 are arranged in an array along the center line of the protective outer pipe 2.

[0023] Such as Figure 1 And Figure 2 And Figure 3 And Figure 4 , the protective outer pipe 2 is sleeved outside the inner pipe 1 as an external protective layer of the inner pipe 1 to protect the inner pipe 1 from damage by the external environment. By setting a number of annular reinforcing ribs 11, the compressive and anti-deformation capabilities of the pipeline are improved, the risk of pipeline rupture is reduced. The two ends of the protective outer pipe 2 are closed. When the inner pipe 1 leaks due to pipeline aging, loosening and damage of the inner pipe 1 interface, temperature difference change, etc., the liquid enters the gap between the protective outer pipe 2 and the inner pipe 1 from the leakage point, which will not cause large-scale liquid waste. At the same time, the leaked liquid will not have a negative impact on the environment. And due to the function of the protective outer pipe 2, the pollutants outside the protective outer pipe 2 will not enter the inner pipe 1 to affect the use of the liquid.

[0024] Such as Figure 2 And Figure 3 And Figure 5 , in order to support and protect the inner pipe 1, a support assembly 3 for supporting the inner pipe 1 is fitted in the inner cavity of the protective outer pipe 2. The support assembly 3 includes a number of support blocks 301 arranged in the inner cavity of the protective outer pipe 2 and detachably and fixedly connected to the inner cavity groove wall of the protective outer pipe 2. A number of support blocks 301 are arranged in an array along the center line of the protective outer pipe 2. The cross-section of the support block 301 is annular. The inner pipe 1 passes through a number of support blocks 301. The center lines of the protective outer pipe 2, the support blocks 301, and the inner pipe 1 coincide. By supporting the inner pipe 1 with a number of evenly arranged support blocks 301, while connecting the inner pipe 1 and the protective outer pipe 2, the possibility of the inner pipe 1 being damaged by friction is reduced, the service life of the inner pipe 1 is extended, and it also ensures the smooth flow of the leaked liquid between the inner pipe 1 and the protective outer pipe 1.

[0025] Such as Figure 1 And Figure 2 And Figure 3, in order to drain the liquid leaked in the gap between the inner tube 1 and the protective outer tube 2, a secondary tube 4 is arranged beside the inner tube 1. The secondary tube 4 is communicated with the protective outer tube 2 through uniformly arranged conduits 5. One end of the conduit 5 is fixedly connected to the circumferential outer wall of the protective outer tube 2, and the other end penetrates into the inner cavity of the secondary tube 4 and is fixedly connected to the secondary tube 4. One end of the secondary tube 4 is closed, and the other end is communicated with a collection box for collecting liquid. When the pipeline ages, the interface of the inner tube 1 is loosened and damaged, or the temperature difference changes, etc., causing the inner tube 1 to leak, the liquid enters the gap between the protective outer tube 2 and the inner tube 1 from the leakage point. The protective outer tube 2, the conduit 5 and the secondary tube 4 are interconnected. The liquid entering the gap between the protective outer tube 2 and the inner tube 1 enters the secondary tube 4 through the conduit 5 and is discharged and collected through the secondary tube 4, without causing large-scale liquid waste. At the same time, the leaked liquid will not have a negative impact on the environment.

[0026] Such as Figure 3 and Figure 8 , a rubber valve block 6 is arranged at one end of the conduit 5 entering the inner cavity of the secondary tube 4. The rubber valve block 6 has a certain elasticity. The circumferential outer wall of the rubber valve block 6 is completely attached to the inner cavity groove wall of the conduit 5. One end of the rubber valve block 6 is an inclined surface 601, and the other end is provided with a circular groove 602. An arc-shaped clamping block 7 is arranged at one end of the conduit 5 entering the inner cavity of the secondary tube 4. A clamping groove 701 is arranged on the side of the arc-shaped clamping block 7 facing the conduit 5. The arc-shaped clamping block 7 is nested outside the rubber valve block 6 and the conduit 5 through the clamping groove 701 and is fixedly connected to the upper side edges of the conduit 5 and the rubber valve block 6. When the inner tube 1 leaks, the liquid entering the gap between the inner tube 1 and the protective outer tube 2 enters the conduit 5. At this time, the water pressure in the conduit 5 is greater than the water pressure in the secondary tube 4. The liquid in the conduit 5 will push the lower side edge of the rubber valve block 6 to retract. The liquid in the conduit 5 enters the secondary tube 4 through the gap between the rubber valve block 6 and the conduit 5. When the water pressure in the secondary tube 4 is greater than the water pressure in the conduit 5, the liquid in the secondary tube 4 enters the circular groove 602. At this time, the circumferential outer wall of the rubber valve block 6 is completely attached to the inner cavity groove wall of the conduit 5, closing the conduit 5. The liquid in the secondary tube 4 will not enter the protective outer tube 2. The rubber valve block 6 controls the opening and closing of the conduit 5 through the pressure difference generated by the self-flow of the medium.

[0027] Such as Figure 1 and Figure 2 and Figure 3 , the conduit 5 is located at the lower side position of the protective outer tube 2, which is convenient for draining the leaked liquid. The conduit 5 is located at the upper side of the secondary tube 4, so as to create a pressure difference. While draining all the leaked liquid, the liquid in the secondary tube 4 will not enter the conduit 5.

[0028] Such as Figure 1 and Figure 2 and Figure 3, the inner tube 1 is composed of a plurality of fixed tubes 101, assembly tubes 102 and control tubes 103. The fixed tubes 101, assembly tubes 102 and control tubes 103 are coaxially arranged. Each fixed tube 101 passes through the support block 301 and is slidably connected to the support block 301. One end of the fixed tube 101 passing through the support block 301 is fixedly connected to the control tube 103 through a flange, and the other end is fixedly connected to the assembly tube 102 through a flange. One end of the assembly tube 102 away from the fixed tube 101 is fixedly connected to the adjacent control tube 103 through a flange, which is convenient for assembling the fixed tube 101, assembly tube 102 and control tube 103 and also facilitates disassembling and replacing the damaged fixed tube 101, assembly tube 102 and control tube 103.

[0029] Such as Figure 1 and Figure 2 and Figure 3 , during the use of the inner tube 1, vibrations may occur due to reasons such as water hammer effect and sudden change in water flow velocity. In order to reduce the possibility of the inner tube 1 damaging the protective outer tube 2 due to vibration, a shock-absorbing component for reducing the possibility of joint loosening caused by the vibration of the inner tube 1 is provided on the support block 301.

[0030] Such as Figure 2 and Figure 3 and Figure 5 and Figure 7 , the shock-absorbing component includes two arc-shaped grooves 302 opened at one end of the support block 301. The two arc-shaped grooves 302 are arranged opposite to each other. The support block 301 is also provided with two opposite activity grooves 303 that communicate with the ends of the adjacent arc-shaped grooves 302. Each arc-shaped groove 302 is smoothly transitioned with the adjacent activity groove 303. A short shaft 304 is slidably connected in each activity groove 303. One end of the short shaft 304 extends out of the activity groove 303, and the end of the short shaft 304 extending out of the activity groove 303 is fixedly connected to the circumferential outer wall of the fixed tube 101. During the process of the fixed tube 101 passing through the support block 301, the short shaft 304 integrated with the fixed tube 101 is located beside the support block 301. As the fixed tube 101 moves into the adjacent arc-shaped groove 302 and rotates under the limiting action of the arc-shaped groove 302 until the short shaft 304 enters the activity groove 303. The short shaft 304 entering the activity groove 303 cannot rotate and move out of the arc-shaped groove 302 without external force. At this time, a certain activity space is provided for the inner tube 1 through the activity groove 303, so that the connection position can move freely within a certain range, buffering the impact force generated by the vibration, and preventing the vibration from being directly transmitted from the inner tube 1 to the protective outer tube 2, thereby protecting the inner tube 1 and the protective outer tube 2 from vibration damage.

[0031] Such as Figure 5 and Figure 7, rubber energy-absorbing gaskets are fixed on the groove walls of the arc-shaped groove 302 and the movable groove 303. By fixing rubber energy-absorbing gaskets on the groove walls of the arc-shaped groove 302 and the movable groove 303, vibration energy is absorbed and converted into its own elastic deformation, thereby weakening the transmission of vibration. Such as Figure 5 and Figure 7 , rubber annular sealing plates 9 for filling and protecting the gap between the outer pipe 2 and the fixed pipe 101 are fixed at one ends of each support block 301 away from the arc-shaped groove 302. The protection outer pipe 2 is divided into several maintenance cavities 10 by a plurality of rubber annular sealing plates 9. Each maintenance cavity 10 is provided with a water leakage sensor. By setting the rubber annular sealing plates 9, the protection outer pipe 2 is divided into several maintenance cavities 10. The liquid leaked from the damaged position of the inner pipe 1 will not enter other maintenance cavities 10 through the gap between the adjacent support blocks 301 and the inner pipe 1. Once a water leakage occurs, the water leakage sensor will trigger an alarm when it detects the water leakage, which is convenient for the staff to quickly locate. This is the prior art, so it will not be elaborated here.

[0032] Such as Figure 1 and Figure 2 and Figure 3 , when the inner pipe 1 is damaged, after the technicians arrive at the scene, temporary pipes need to be laid at both ends of the damaged pipe, and plugging parts need to be installed to seal both ends of the damaged pipe, so that the water flow does not pass through the damaged pipe, but enters the next pipe through the temporary pipe. At this time, the damaged pipe is replaced. However, this replacement method has the problems of large construction scope and affecting traffic.

[0033] Such as Figure 1 and Figure 2 and Figure 3 , in order to solve the above problems, a replacement component 8 for conveniently disassembling and assembling the damaged part of the inner pipe 1 is provided on the inner pipe 1. The replacement component 8 includes a first connecting pipe 801 integrated with each assembly pipe 102. One end of the first connecting pipe 801 away from the assembly pipe 102 is flange-connected to a second connecting pipe 802. One end of the second connecting pipe 802 away from the first connecting pipe 801 passes through the protection outer pipe 2 and is fixedly connected to the protection outer pipe 2. One end of the second connecting pipe 802 passing through the protection outer pipe 2 enters the auxiliary pipe 4 and is fixedly connected to the auxiliary pipe 4. The auxiliary pipe 4 and the inner pipe 1 are communicated through a plurality of mutually cooperating first connecting pipes 801 and second connecting pipes 802. A first control valve for controlling the on-off of the control pipe 103 is provided on each control pipe 103. A second control valve for controlling the on-off of the control pipe 103 and located outside the protection outer pipe 2 and the auxiliary pipe 4 is provided on each second connecting pipe 802. A plurality of maintenance slots communicating with the inner cavity of the protection outer pipe 2 are opened on the protection outer pipe 2. Each maintenance slot is located between two adjacent support blocks 301. A maintenance door for closing the maintenance slot is detachably and fixedly connected to the protection outer pipe 2.

[0034] Such as Figure 1 andFigure 2 and Figure 3 When it is necessary to replace the damaged assembly pipe 102, the first control valves on both sides of the damaged position are closed, and the second control valves on both sides of the damaged position are opened, so that the inner pipe 1 at the damaged position is in a closed state and no liquid flows through. At this time, the auxiliary pipe 4 acts as a temporary water pipe to drain the liquid. Then, the inspection door is opened, and the inner pipe 1 at the damaged position can be replaced, reducing the traffic impact caused by construction and improving the replacement efficiency.

[0035] During use, the staff first inserts the fixed pipe 101 into the support block 301. The short shaft 304 integrated with the fixed pipe 101 is located beside the support block 301. During the process of the fixed pipe 101 passing through the support block 301, the short shaft 304 integrated with the fixed pipe 101 moves with the movement of the fixed pipe 101, and the short shaft 304 enters the adjacent arc-shaped groove 302. Manually rotate the fixed pipe 101 until the short shaft 304 enters the appropriate position in the movable groove 303 and stops. The short shaft 304 entering the movable groove 303 cannot rotate out of the arc-shaped groove 302 without external force. At this time, a certain movement space is provided for the inner pipe 1 through the movable groove 303; At this time, one end of the fixed pipe 101 is fixedly connected to the control pipe 103 through a flange, and the other end is fixedly connected to the assembly pipe 102 through a flange. The end of the assembly pipe 102 away from the fixed pipe 101 is fixedly connected to the adjacent control pipe 103 through a flange. A number of fixed pipes 101, assembly pipes 102, and control pipes 103 are assembled into the inner pipe 1 for water supply, and the connection parts are sealed. The rubber annular sealing plate 9 also seals each inspection cavity 10, so that each inspection cavity 10 is not connected; When the assembly pipe 102 is damaged, the leaked liquid will enter the inspection cavity 10, and the liquid in the inspection cavity 10 will enter the conduit 5. At this time, the water pressure in the conduit 5 is greater than the water pressure in the auxiliary pipe 4, and the liquid in the conduit 5 will push the lower side edge of the rubber valve block 6 to retract. The liquid in the conduit 5 enters the auxiliary pipe 4 through the gap between the rubber valve block 6 and the conduit 5, facilitating the discharge of the leaked liquid; At the same time, the water leakage sensor monitors the water leakage and triggers an alarm, which is convenient for the staff to directly reach the outside of the inspection cavity at the damaged position and quickly locate. This is the prior art, so it will not be elaborated here; After locating the assembly pipe 102 at the damaged position, the staff controls the first control valves on both sides of the damaged position to close and the second control valves on both sides of the damaged position to open. At this time, the assembly pipe 102 at the damaged position is in a closed state. The liquid at the water inlet end of the damaged position enters the auxiliary pipe 4 through the first connecting pipe 801 and the second connecting pipe 802. There are several valves on the auxiliary pipe 4 to control the opening and closing of the pipeline of the auxiliary pipe 4. The valves on both sides of the damaged position of the auxiliary pipe 4 are closed. At this time, the auxiliary pipe 4 can be used as a temporary pipeline. The liquid entering the auxiliary pipe 4 from the inner pipe 1 enters the inner pipe 1 again through the first connecting pipe 801 and the second connecting pipe 802 at the water outlet end of the damaged position and is discharged from the water outlet end of the inner pipe 1. At this time, the inner pipe 1 at the damaged position is in a closed state; At this time, the staff can directly disassemble and replace the damaged assembly pipe 10 or the pipeline at other positions without the need to lay an additional temporary pipeline, reducing the traffic impact caused by construction and improving the replacement efficiency. After the replacement is completed, the first control valves on both sides of the damaged position are controlled to open, the second control valves are closed, and the valves on the auxiliary pipe 4 are opened. The liquid in the inner pipe 1 flows normally. Once there is a leaked liquid, it will enter the auxiliary pipe 4 through the conduit 5 for anti-maintenance.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A municipal road pipeline protection structure, including an inner pipe (1) for transmitting liquid, characterized in that, The municipal road pipeline protection structure further includes: A protection mechanism, including a protection outer pipe (2) sleeved outside the inner pipe (1) and arranged coaxially with the inner pipe (1), and a support assembly (3) for supporting the inner pipe (1) is fitted in the inner cavity of the protection outer pipe (2); A drainage mechanism, including a secondary pipe (4) arranged beside the protection outer pipe (2), and the secondary pipe (4) is communicated with the protection outer pipe (2) through a plurality of uniformly arranged conduits (5). One end of the conduit (5) is fixedly connected to the circumferential outer wall of the protection outer pipe (2), and the other end penetrates into the inner cavity of the secondary pipe (4) and is fixedly connected to the secondary pipe (4). The liquid leaked from the inner pipe (1) will enter the secondary pipe (4) through the conduit (5) and be discharged through the secondary pipe (4); A check mechanism, including a rubber valve block (6) arranged at one end of the conduit (5) entering the inner cavity of the secondary pipe (4), and the opening and closing of the conduit (5) are controlled by the pressure difference generated by the self-flow of the medium.

2. A municipal road pipeline protection structure according to claim 1, characterized in that, The support assembly (3) includes a support block (301) arranged in the inner cavity of the protection outer pipe (2) and integrally structured with the inner cavity groove wall of the protection outer pipe (2). There are a plurality of support blocks (301), and the plurality of support blocks (301) are arranged in an array along the center line of the protection outer pipe (2). The cross section of the support block (301) is annular, and the inner pipe (1) penetrates through the plurality of support blocks (301) and is slidably connected to the support blocks (301). The center lines of the protection outer pipe (2), the support block (301), and the inner pipe (1) coincide.

3. A municipal road pipeline protection structure according to claim 2, characterized in that, The circumferential outer wall of the rubber valve block (6) is completely attached to the inner cavity groove wall of the conduit (5). One end of the rubber valve block (6) is an inclined surface (601), and the other end is provided with a circular groove (602). An arc-shaped clamping block (7) is arranged at one end of the conduit (5) entering the inner cavity of the secondary pipe (4). A clamping groove (701) is arranged on the side of the arc-shaped clamping block (7) facing the conduit (5). The arc-shaped clamping block (7) is nested outside the rubber valve block (6) and the conduit (5) through the clamping groove (701) and is fixedly connected to the upper side edges of the conduit (5) and the rubber valve block (6).

4. A municipal road pipeline protection structure according to claim 2, characterized in that, A plurality of inspection slots communicating with the inner cavity of the protection outer pipe (2) are opened on the protection outer pipe (2), and each inspection slot is located between two adjacent support blocks (301). An inspection door for closing the inspection slot is detachably and fixedly connected to the protection outer pipe (2). A replacement assembly (8) for facilitating the disassembly and assembly of the damaged part of the inner pipe (1) is provided on the inner pipe (1).

5. A municipal road pipeline protection structure according to claim 4, characterized in that, The inner pipe (1) is composed of a plurality of fixed pipes (101), assembly pipes (102), and control pipes (103). Each fixed pipe (101) penetrates through the support block (301) and is slidably connected to the support block (301). One end of the fixed pipe (101) passing through the support block (301) is fixedly connected to the control pipe (103) through a flange, and the other end is fixedly connected to the assembly pipe (102) through a flange. One end of the assembly pipe (102) away from the fixed pipe (101) is fixedly connected to the adjacent control pipe (103) through a flange.

6. A municipal road pipeline protection structure according to claim 5, characterized in that, The replacement component (8) includes a first connecting pipe (801) integrated with each assembly pipe (102). One end of the first connecting pipe (801) far from the assembly pipe (102) is flange-connected to a second connecting pipe (802). One end of the second connecting pipe (802) far from the first connecting pipe (801) penetrates through the protective outer pipe (2) and is fixedly connected to the protective outer pipe (2). One end of the second connecting pipe (802) that penetrates through the protective outer pipe (2) enters the auxiliary pipe (4) and is fixedly connected to the auxiliary pipe (4). The auxiliary pipe (4) and the inner pipe (1) are communicated through a number of mutually cooperating first connecting pipes (801) and second connecting pipes (802). A first control valve for controlling the on-off of the control pipe (103) path is provided on each control pipe (103), and a second control valve for controlling the on-off of the control pipe (103) path and located outside the protective outer pipe (2) and the auxiliary pipe (4) is provided on each second connecting pipe (802).

7. A municipal road pipeline protection structure according to claim 6, characterized in that, A shock-absorbing component for reducing the possibility of joint loosening caused by the vibration of the inner pipe (1) is provided on the support block (301).

8. A municipal road pipeline protection structure according to claim 7, characterized in that, The shock-absorbing component includes two arc-shaped grooves (302) opened at one end of the support block (301). The two arc-shaped grooves (302) are arranged opposite to each other. Two movable grooves (303) that are arranged opposite to each other and communicated with the ends of the adjacent arc-shaped grooves (302) are also opened on the support block (301). Each arc-shaped groove (302) is smoothly transitioned with the adjacent movable groove (303). A short shaft (304) is slidably connected in each movable groove (303). One end of the short shaft (304) extends out of the movable groove (303), and the end of the short shaft (304) that extends out of the movable groove (303) is fixedly connected to the circumferential outer wall of the fixed pipe (101).

9. A municipal road pipeline protection structure according to claim 8, characterized in that, A rubber annular sealing plate (9) for filling the gap between the protective outer pipe (2) and the fixed pipe (101) is fixed at one end of each support block (301) far from the arc-shaped groove (302). The protective outer pipe (2) is divided into a number of maintenance cavities (10) by a number of rubber annular sealing plates (9), and a water leakage sensor is provided in each maintenance cavity (10).

10. A municipal road pipeline protection structure according to claim 1, characterized in that, A number of annular reinforcing ribs (11) are fixed on the circumferential outer wall of the protective outer pipe (2). The inner cavity of the annular reinforcing rib (11) is hollow, and a number of annular reinforcing ribs (11) are arranged in an array along the center line of the protective outer pipe (2).

Images