Rainwater box culvert underground pipeline protection structure

Abstract

The utility model discloses a rainwater box culvert underground pipeline protection structure relates to box culvert pipeline protection technical field, including hanger assembly and pipeline protection structure, and pipeline protection structure is suspended in the inside of rainwater box culvert main part top through hanger assembly, and pipeline protection structure includes lower protective shell, the upper protective shell that is compatible with is established to the upper side of lower protective shell, and the upper protective shell and lower protective shell are covered together and set up in the joint outside of pipeline, and the upper protective shell and lower protective shell are equipped with the communicating hole for pipeline and pass, the bottom surface of upper protective shell evenly fixedly connected with a plurality of fixed stud, and the fixed stud is screwed the first nut after penetrating lower protective shell, the upper protective shell and lower protective shell of pipeline protection structure are locked fixed through fixed stud and first nut to the joint of pipeline is isolated and protected, and the effective reduction of external corrosion is carried out.

Description

Technical Field

[0001] This utility model relates to the field of protection technology for box culvert pipelines, specifically to a protection structure for underground pipelines in rainwater box culverts. Background Technology

[0002] Stormwater box culverts are square or rectangular cross-section culverts constructed of reinforced concrete. They are precast or cast-in-place reinforced concrete structures used in urban drainage systems, primarily for the rapid collection and discharge of rainwater, preventing flooding and ensuring roadbed safety. They are typically constructed using precast or cast-in-place methods. Their structure is highly stable, capable of withstanding overhead vehicle loads and water flow impacts. With a span generally less than 4 meters, they are an economical alternative to pipe culverts. The use of pipelines inside box culverts is a common design. In stormwater box culverts, since water needs to flow through the bottom, pipelines are usually placed at the top of the culvert and protected by an installation structure. Existing installation structures can only lift the pipelines, keeping them away from the water surface. Although this provides protection, the high humidity inside stormwater box culverts makes the pipeline joints prone to corrosion and leakage. Therefore, a new underground pipeline protection structure for stormwater box culverts is proposed to optimize the existing technology. Utility Model Content

[0003] The purpose of this utility model is to provide a protective structure for underground pipelines in rainwater culverts, addressing the shortcomings of existing technologies.

[0004] The technical solution of this utility model is: a protective structure for underground pipelines in a rainwater culvert, including a hanger assembly and a pipeline protection structure. The pipeline protection structure is suspended on the inner side of the top of the main body of the rainwater culvert by the hanger assembly. The pipeline protection structure includes a lower protective shell. An upper protective shell that is adapted to the lower protective shell is provided on the upper part of the lower protective shell. The upper and lower protective shells are together covered on the outside of the pipeline joint. The two are detachably connected, and the upper and lower protective shells are provided with connecting holes for the pipeline to pass through.

[0005] Preferably, the bottom surface of the upper protective shell is uniformly fixedly connected with a plurality of fixing studs, and each fixing stud is threadedly connected to a first nut after penetrating the lower protective shell.

[0006] Preferably, the lower protective shell has an external threaded interface on one side of its bottom, and a threaded cap is threaded onto the external threaded interface. A desiccant block is fixedly connected to the inner side of the threaded cap and is inserted into the lower protective shell.

[0007] Preferably, a cylinder is provided on the other side of the bottom of the lower protective shell, a switch is fixedly connected to the bottom of the inner side of the cylinder, and a piston block adapted to it is slidably connected to the inner side of the cylinder; a first spring is provided between the piston block and the bottom of the inner side of the cylinder, and the two ends of the first spring are fixedly connected to the piston block and the bottom of the inner side of the cylinder, respectively.

[0008] Preferably, a pressure relief hole is provided in the middle of the side wall of the cylinder, an outer sleeve is fixedly connected to the bottom surface of the piston block, an inner sleeve is slidably connected to the inner side of the outer sleeve, a second spring is fixedly connected to both the inner sleeve and the outer sleeve, and the inner sleeve corresponds to the switch.

[0009] Preferably, the hanger assembly includes a lower frame and an upper frame. The lower frame is fixedly connected to the bottom surface of the lower protective shell, and the upper frame is fixedly connected to the top surface of the upper protective shell. Four positioning rods are symmetrically fixedly connected to the bottom of the upper frame. The positioning rods slide through the lower frame, and the lower frame has circular holes for the positioning rods to pass through.

[0010] Preferably, the hanger assembly further includes a fixing plate located above the upper frame, the fixing plate having a plurality of horizontally arranged first mounting holes, each first mounting hole having a matching expansion bolt passing through it, the expansion bolt being fixedly embedded in the top inner side of the rainwater culvert body, and the end of the expansion bolt being threadedly connected to a hexagonal nut; The lower frame has multiple longitudinally arranged second mounting holes, and a threaded rod adapted to each second mounting hole passes through the second mounting hole. The threaded rod is threaded with a second nut on both sides of the lower frame, and the upper end of the threaded rod is fixedly connected to the bottom surface of the fixing plate.

[0011] Preferably, a control box is also fixedly installed on the bottom of the lower frame. The control box contains a microcontroller (responsible for handling switch input and 4G module control), a 4G communication module and a power module. The switch can be a normally open push-button switch, which closes the circuit when pressed and opens it when released.

[0012] Compared with the prior art, this utility model has the following advantages: The upper and lower protective shells of the pipeline protection structure are locked and fixed by fixing studs and first nuts, thereby isolating and protecting the pipeline joints and effectively reducing external corrosion. When a gas leak occurs at the pipeline interface, the internal air pressure of the upper and lower protective shells increases, which can drive the piston block to compress the first spring downward, causing the inner sleeve to press against the switch to trigger a leak alarm. The pipeline protection structure is suspended and installed using a hanger assembly. The suspension height can be adjusted by adjusting the position of the second nut on the threaded rod, the longitudinal position can be adjusted by adjusting the position of the threaded rod in the second mounting hole, and the lateral position can be adjusted by adjusting the expansion bolt corresponding to the first mounting hole. This facilitates the adjustment of the pipeline's suspension position and ensures that the pipelines are aligned during installation. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a top perspective view of the present invention; Figure 3 This is a perspective view of the present invention from below; Figure 4 This is a cross-sectional view of the cylindrical section in the pipeline protection structure. Figure 5 This is a cross-sectional view of the external threaded interface in the pipeline protection structure.

[0014] In the diagram: 1. Main body of the rainwater culvert; 2. Pipeline protection structure; 3. Hanger assembly; 4. Lower protective shell; 5. Upper protective shell; 6. Pipeline; 7. Connecting hole; 8. Fixing stud; 9. First nut; 10. External threaded interface; 11. Threaded cap; 12. Switch; 13. Cylinder; 14. Desiccant block; 15. Pressure relief hole; 16. Piston block; 17. First spring; 18. Outer sleeve; 19. Inner sleeve; 20. Lower frame; 21. Upper frame; 22. Positioning rod; 23. Fixing plate; 24. First mounting hole; 25. Second mounting hole; 26. Threaded rod; 27. Second nut; 28. Expansion bolt; 29. ​​Second spring. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0016] Reference Figure 1-4 As shown, a protective structure for underground pipelines in a stormwater culvert includes a hanger assembly 3 and a pipeline protection structure 2. The pipeline protection structure 2 is suspended from the top inner side of the stormwater culvert body 1 by the hanger assembly 3. The pipeline protection structure 2 includes a lower protective shell 4. An upper protective shell 5, which is adapted to the lower protective shell 4, is provided on top of the lower protective shell 4. The upper protective shell 5 and the lower protective shell 4 together cover the outside of the joint of the pipeline 6, and the upper protective shell 5 and the lower protective shell 4 are provided with connecting holes 7 for the pipeline 6 to pass through. A number of fixing studs 8 are evenly fixedly connected to the bottom surface of the upper protective shell 5. After passing through the lower protective shell 4, each fixing stud 8 is threaded with a first nut 9.

[0017] The upper protective shell 5 and the lower protective shell 4 are locked and fixed by the fixing studs 8 and the first nut 9, thereby isolating and protecting the joint of the pipeline 6 and effectively reducing external corrosion.

[0018] A cylindrical body 13 is provided on one side of the bottom of the lower protective shell 4. A switch 12 is fixedly connected to the bottom inner side of the cylindrical body 13. A piston block 16 adapted to the switch 12 is slidably connected to the inner side of the cylindrical body 13. A first spring 17 is provided between the piston block 16 and the bottom inner side of the cylindrical body 13. The two ends of the first spring 17 are fixedly connected to the piston block 16 and the bottom inner side of the cylindrical body 13, respectively. A pressure relief hole 15 is provided in the middle of the side wall of the cylindrical body 13. An outer sleeve 18 is fixedly connected to the bottom surface of the piston block 16. An inner sleeve 19 is slidably connected to the inner side of the outer sleeve 18. A second spring 29 is fixedly connected to both the inner sleeve 19 and the outer sleeve 18, and the inner sleeve 19 corresponds to the switch 12.

[0019] The hanger assembly 3 includes a lower frame 20 and an upper frame 21. The lower frame 20 is fixedly connected to the bottom surface of the lower protective shell 4, and the upper frame 21 is fixedly connected to the top surface of the upper protective shell 5. Four positioning rods 22 are symmetrically fixedly connected to the bottom of the upper frame 21. The positioning rods 22 slide through the lower frame 20, and the lower frame 20 has a circular hole for the positioning rods 22 to pass through.

[0020] The hanger assembly 3 also includes a fixing plate 23 located above the upper frame 21. The fixing plate 23 has multiple horizontally arranged first mounting holes 24. Expansion bolts 28 adapted to the first mounting holes 24 pass through them. The expansion bolts 28 are fixedly embedded in the top inner side of the rainwater culvert body 1. The ends of the expansion bolts 28 are threaded with hexagonal nuts. The lower frame 20 has multiple vertically arranged second mounting holes 25. Threaded rods 26 adapted to the second mounting holes 25 pass through them. The threaded rods 26 are threaded with second nuts 27 on both sides of the lower frame 20. The upper end of the threaded rods 26 is fixedly connected to the bottom surface of the fixing plate 23.

[0021] The pipeline protection structure 2 is suspended and installed using the hanger assembly 3. The suspension height can be adjusted by adjusting the position of the second nut 27 on the threaded rod 26. The longitudinal position can be adjusted by adjusting the position of the threaded rod 26 in the second mounting hole 25. The lateral position can be adjusted by adjusting the first mounting hole 24 corresponding to the expansion bolt 28. This facilitates the adjustment of the hoisting position of the pipeline 6 and makes it easy for the pipelines 6 to be aligned with each other during installation.

[0022] A control box is also fixedly installed on the bottom of the lower frame 20. The control box contains a microcontroller (responsible for handling the input of switch 12 and the control of the 4G module), a 4G communication module and a power supply module. Switch 12 can be a normally open push-button switch, which closes the circuit when pressed and opens it when released.

[0023] In use, expansion bolts 28 are pre-embedded on the top inner side of the main body 1 of the rainwater culvert. The fixing plate 23 is then pre-installed using a hexagonal nut in conjunction with the first mounting hole 24. The lower protective shell 4 is then pre-installed at the bottom of the threaded rod 26 using a second nut 27. The suspension height can be adjusted by adjusting the position of the second nut 27 on the threaded rod 26, and the longitudinal position can be adjusted by adjusting the position of the threaded rod 26 within the second mounting hole 25. The lateral position can be adjusted by adjusting the first mounting hole 24 corresponding to the expansion bolts 28, thus facilitating the adjustment of the hoisting position of the pipeline 6 and ensuring alignment during installation. The pipeline 6 is then installed, with the joint located inside the lower protective shell 4. The upper protective shell 5 is then covered by the positioning rod 22, and the fixing stud 8 penetrates the lower protective shell 4. Finally, the first nut 9 is tightened to complete the fixed installation.

[0024] When a gas leak occurs at the interface of pipeline 6, the internal air pressure of the upper protective shell 5 and the lower protective shell 4 increases, which can drive the piston block 16 to compress the first spring 17 downward, causing the inner sleeve 19 to press against the switch 12. At this time, the 4G module sends an alarm to the external receiving device to remind the staff of the leak. At the same time, the piston block 16 further compresses the first spring 17, and the inner sleeve 19 and the outer sleeve 18 can compress the second spring 29, so that the piston block 16 moves downward to below the pressure relief hole 15, thereby achieving a pressure relief effect and preventing the upper protective shell 5 and the lower protective shell 4 from bursting due to excessive internal pressure. Example 2

[0025] As a preferred embodiment of this utility model, this embodiment adds a threaded cap 11, an external threaded interface 10, and a desiccant block 14 to the first embodiment, specifically as follows: Reference Figure 5 As shown, an external threaded interface 10 is provided on the other side of the bottom of the lower protective shell 4. A threaded cap 11 is threadedly connected to the external threaded interface 10. A desiccant block 14 is fixedly connected to the inner side of the threaded cap 11 and is inserted into the lower protective shell 4. The threaded cap 11 and the external threaded interface 10 form an assembly installation, which facilitates the replacement of the desiccant block 14.

[0026] By placing desiccant blocks 14 inside the upper protective shell 5 and the lower protective shell 4, the air can be dried, thereby further improving the protective effect.

[0027] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A protective structure for underground pipelines in a rainwater culvert, comprising a hanger assembly, characterized in that: It also includes a pipeline protection structure, which is suspended on the inner side of the top of the rainwater culvert body by a hanger assembly. The pipeline protection structure includes a lower protective shell; an upper protective shell adapted to the lower protective shell is provided on the upper protective shell. The upper and lower protective shells together cover the outside of the pipeline joint. The two are detachably connected, and the upper and lower protective shells are provided with connecting holes for the pipeline to pass through. A cylinder is provided on the other side of the bottom of the lower protective shell. A switch is fixedly connected to the bottom of the inner side of the cylinder, and a piston block adapted to it is slidably connected to the inner side of the cylinder. A first spring is provided between the piston block and the bottom of the inner side of the cylinder.

2. The underground pipeline protection structure for rainwater culverts according to claim 1, characterized in that: The bottom surface of the upper protective shell is uniformly fixed with several fixing studs, and each fixing stud is threaded with a first nut after penetrating the lower protective shell.

3. The underground pipeline protection structure for rainwater culverts according to claim 1, characterized in that: The lower protective shell has an external threaded interface on one side of its bottom. A threaded cap is threaded onto the external threaded interface, and a desiccant block is fixedly connected to the inner side of the threaded cap.

4. The underground pipeline protection structure for rainwater culverts according to claim 1, characterized in that: A pressure relief hole is provided in the middle of the side wall of the cylinder. An outer sleeve is fixedly connected to the bottom surface of the piston block. An inner sleeve is slidably connected to the inner side of the outer sleeve. A second spring is fixedly connected to both the inner sleeve and the outer sleeve, and the inner sleeve corresponds to the switch.

5. The underground pipeline protection structure for rainwater culverts according to claim 1, characterized in that: The hanger assembly includes a lower frame and an upper frame. The lower frame is fixedly connected to the bottom surface of the lower protective shell, and the upper frame is fixedly connected to the top surface of the upper protective shell. Four positioning rods are symmetrically fixedly connected to the bottom of the upper frame. The positioning rods slide through the lower frame.

6. The underground pipeline protection structure for rainwater culverts according to claim 5, characterized in that: The hanger assembly also includes a fixing plate located above the upper frame. The fixing plate has multiple horizontally arranged first mounting holes, and expansion bolts adapted to it pass through the first mounting holes. The expansion bolts are fixedly embedded in the top inner side of the rainwater culvert body. The lower frame has multiple longitudinally arranged second mounting holes, and a threaded rod adapted to each second mounting hole passes through the second mounting hole. The threaded rod is threaded with a second nut on both sides of the lower frame, and the upper end of the threaded rod is fixedly connected to the bottom surface of the fixing plate.

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