Buried pipeline intersection structure

Abstract

The utility model provides a buried pipeline intersection structure which comprises an intersection well, a first pipe section, a second pipe section, a through pipe and an overflow cover, the first pipe section and the second pipe section are both communicated with the intersection well, the through pipe penetrates through the intersection well and the overflow cover to be fixedly connected with the bottom face of the intersection well, the overflow cover covers the through pipe, a drainage pool is further arranged in the intersection well, and the drainage pool is arranged in the intersection well. And the draining tank is arranged below the first pipe section and the second pipe section. According to the technical scheme, the through pipe is covered with the overflow cover, fluid entering the intersection well can be prevented from damaging the through pipe, the service life of the through pipe is prolonged, dirt in the fluid entering the intersection well can be precipitated and separated out through the draining pool, corresponding personnel can turn over the supporting rod at the edge of the wellhead of the intersection well, and the through pipe is prevented from being damaged by the fluid entering the intersection well. And the drainage tank is lifted by using a cable, a steel wire rope or a chain through the fixed pulley, so that dirt deposited in the drainage tank can be conveniently and regularly removed, and the dirt is prevented from blocking a pipeline or an intersection well.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, and particularly relates to an underground pipeline intersection structure. Background Art

[0002] It is pointed out in the Outdoor Drainage Design Code GB50014 that the drainage system should preferably adopt the separate system, that is, rainwater and sewage are discharged through two systems, and their respective pipes and inspection wells are set separately without mixing. To meet this requirement, the current practice is to increase the covering thickness of the drainage pipeline, and make the rainwater drainage pipe and the sewage drainage pipe at different burial depths, so that the two pipes are staggered in elevation, so as to avoid pipeline crossing and collision and avoid the mixing between rainwater and sewage. Although this practice can meet the needs of the design code, during the planning and design of municipal pipelines, it is impossible to ensure that all the underground buried pipelines are accurately and completely surveyed. Therefore, during the construction of municipal pipelines, it is common to encounter the situation where the elevation of the municipal pipeline conflicts with and intersects with the original underground buried sewage pipe, cable pipe or rainwater pipe. If the design is changed, it will lead to an increase in the amount of earth excavation and an increase in cost.

[0003] In the prior art, the patent document with the publication number of "CN214574484U" discloses a construction structure for the intersection space of rainwater and sewage pipes at the same elevation, including a rainwater pipeline, a sewage pipeline and an intersection inspection well. The intersection inspection well includes an inspection well entrance arranged at the top of the inner well, a manhole cover covering the inspection well entrance, an outer well, an inner well, and an inner-outer well passage arranged on the well wall of the inner well; the inner well is accommodated in the outer well so as to form an annular cavity for rainwater to flow between the inner well and the outer well; the sewage pipeline penetrates through the outer well and is connected to the inner well, and the rainwater pipeline is connected to the outer well. This patented technology avoids the need to temporarily change the pipeline planning and design during the construction process by setting up an intersection inspection well, which can greatly reduce the construction cost and improve the construction efficiency. However, during the construction of municipal pipelines when pipeline intersections are encountered, since the originally buried underground pipelines have been in use for a certain period of time, some of the outer surfaces of the existing pipelines have begun to show damage, and it is extremely easy to damage the outer surfaces of the existing pipelines during the construction process of setting up the intersection well (1). Moreover, after the intersection well (1) is built, if the elevation difference between the laid pipeline and the existing pipeline is not large, it is necessary to cut off the laid pipeline or the existing pipeline. The fluid in the cut-off pipeline flows into the intersection well, causing the uncut pipeline to be immersed in water for a long time, which will damage the pipeline and affect its service life. In addition, the solid substances in the fluid entering the intersection well will gradually precipitate at the bottom of the intersection well. If not removed in time, it is easy to cause blockage. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides an underground pipeline intersection structure.

[0005] The present utility model is achieved through the following technical solutions.

[0006] The present utility model provides an underground pipeline intersection structure, including an intersection well, a first pipe section, a second pipe section, a through pipe, and an overflow cover. The first pipe section and the second pipe section are both connected to the intersection well. The through pipe passes through the intersection well. The overflow cover is fixedly connected to the bottom surface of the intersection well and covers the through pipe. A drainage pool is also provided in the intersection well and is arranged below the first pipe section and the second pipe section.

[0007] The number of the drainage pools is a pair, and this pair of drainage pools are arranged on the left and right sides of the overflow cover respectively.

[0008] The overall shape of the overflow cover is U-shaped.

[0009] One end of a support rod is hinged to the edge of the wellhead of the intersection well, and a fixed pulley is provided at the other end of the support rod. The left and right sides of the drainage pool are also fixedly connected to suspension rings respectively.

[0010] A sunk groove is also provided on the edge of the wellhead of the intersection well, and the support rod is hinged in this sunk groove.

[0011] A cobblestone layer is paved inside the drainage pool.

[0012] A plurality of drainage holes are provided around the drainage pool.

[0013] At least one end of the first pipe section or the second pipe section is flush with the inner surface of the intersection well.

[0014] The overall shape of the intersection well is a rectangular cylinder shape.

[0015] The intersection well is formed by concrete pouring.

[0016] The beneficial effects of the present utility model are as follows: By adopting the technical solution of the present utility model, the overflow cover is used to cover the uncut pipeline, so that the fluid entering the intersection well will not damage the through pipeline, and the service life of the through pipeline is prolonged. The fluid entering the intersection well through the first pipe section can overflow through the surface of the overflow cover and enter the second pipe section. The fluid entering the intersection well will also enter the drainage pool for preliminary precipitation, and the solid substances therein will precipitate to the bottom of the drainage pool. When the support rod at the edge of the wellhead of the intersection well is flipped and the drainage pool is lifted by using a cable, a steel wire rope or a chain through the fixed pulley, the dirt precipitated in the drainage pool can be removed regularly to prevent the dirt from blocking the pipeline or the intersection well. Description of the Drawings

[0017] Figure 1 is the front view of the present utility model;

[0018] Figure 2 It is the top view of the present utility model.

[0019] In the figure: 1 - intersection well, 2 - first pipe section, 3 - second pipe section, 4 - through pipe, 5 - overflow hood, 6 - draining pool, 7 - support rod, 8 - fixed pulley, 9 - cobblestone layer. Specific embodiments

[0020] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0021] As Figures 1 to 2 shown, the present utility model provides a buried pipeline intersection structure, including an intersection well 1, a first pipe section 2, a second pipe section 3, a through pipe 4 and an overflow hood 5. The first pipe section 2 and the second pipe section 3 are both communicated with the intersection well 1. The through pipe 4 passes through the intersection well 1. The overflow hood 5 is fixedly connected to the bottom surface of the intersection well 1, and the overflow hood 5 covers the through pipe 4. A draining pool 6 is further arranged in the intersection well 1, and the draining pool 6 is arranged below the first pipe section 2 and the second pipe section 3.

[0022] Adopting the technical solution of the present utility model, an overflow hood is used to cover the uncut pipeline, so that the fluid entering the intersection well will not damage the through pipeline, prolonging the service life of the through pipeline. The fluid entering the intersection well through the first pipe section can overflow onto the surface of the overflow hood and enter the second pipe section. The fluid entering the intersection well will also enter the draining pool for preliminary precipitation. The solid substances therein precipitate to the bottom of the draining pool. When the support rod at the edge of the intersection well opening is flipped and the draining pool is lifted by using a cable, a steel wire rope or a chain through the fixed pulley, the dirt precipitated in the draining pool can be removed regularly to prevent the dirt from blocking the pipeline or the intersection well.

[0023] Specifically, the number of the draining pools 6 is a pair, and the pair of draining pools 6 are arranged on the left and right sides of the overflow hood 5 respectively. The overflow hood 5 is in an overall U shape. The overflow hood 5 is preferably made of a stainless steel plate by bending, so that the overflow hood can be immersed in water for a long time and avoid the corrosion or penetration of the fluid in the communication well to the through pipe.

[0024] In addition, one end of the support rod 7 is hinged to the edge of the wellhead of the intersection well 1, and a fixed pulley 8 is arranged at the other end of the support rod 7. The left and right sides of the draining pool 6 are respectively fixedly connected with lifting rings. Specifically, a sunk groove is further arranged at the edge of the wellhead of the intersection well 1, and the support rod 7 is hinged in the sunk groove. The support rod 7 can be replaced by a channel steel. Adopting the technical solution of the present utility model, in the daily state, the draining pool is used to collect rainwater or sewage. When it is necessary to clean the dirt precipitated in the draining pool, a cable, a steel wire rope or a chain can be used to lift the draining pool through the fixed pulley, so as to timely remove the dirt in the draining pool and prevent the dirt from blocking the pipeline or the intersection well.

[0025] In addition, a cobblestone layer 9 is laid inside the draining pool 6. A plurality of water draining holes are arranged around the draining pool 6. By adopting the technical solution of the utility model, the cobblestone layer 9 is arranged in the draining pool 6, improving the purification and sedimentation effect of the draining pool on the fluid entering the confluence well. By arranging the water draining holes, when the draining pool is lifted, the purified water can fall into the confluence well through the water draining holes, while the dirt remains in the draining pool, thereby reducing the weight of the draining pool and the objects inside it, facilitating the lifting of the draining pool, and then centrally removing the dirt in the draining pool.

[0026] Specifically, at least one end of the first pipe section 2 or the second pipe section 3 is flush with the inner surface of the confluence well 1. The confluence well 1 is in an overall rectangular cylinder shape. The confluence well 1 is formed by concrete pouring.

Claims

1. A buried pipeline intersection structure, characterized in that: The invention comprises a junction well (1), a first pipe section (2), a second pipe section (3), a through pipe (4) and an overflow cover (5); the first pipe section (2) and the second pipe section (3) are both connected to the junction well (1); the through pipe (4) passes through the junction well (1); the overflow cover (5) is fixedly connected to the bottom surface of the junction well (1); and the overflow cover (5) covers the through pipe (4); a drainage pool (6) is also provided in the junction well (1); and the drainage pool (6) is arranged below the first pipe section (2) and the second pipe section (3).

2. The buried pipeline intersection structure according to claim 1, characterized in that: The number of the drain pools (6) is a pair, and the pair of drain pools (6) are arranged on the left and right sides of the overflow cover (5).

3. A buried pipeline intersection structure as claimed in claim 1 or 2, characterized in that: The overflow cover (5) is in a U shape as a whole.

4. The buried pipeline intersection structure according to claim 1, characterized in that: The wellhead edge of the intersection well (1) is also hinged to one end of a support rod (7), and a fixed pulley (8) is provided at the other end of the support rod (7). The left and right sides of the drainage pool (6) are also fixedly connected to the lifting rings respectively.

5. The buried pipeline intersection structure according to claim 4, characterized in that: The wellhead edge of the intersection well (1) is also provided with a sinking groove, and the support rod (7) is hinged in the sinking groove.

6. A buried pipeline intersection structure as claimed in claim 1, 2 or 4, characterized in that: A pebble layer (9) is paved inside the drainage pool (6).

7. The buried pipeline intersection structure according to claim 6, characterized in that: A plurality of drainage holes are arranged around the drainage pool (6).

8. The buried pipeline intersection structure according to claim 1, characterized in that: At least one end of the first pipe section (2) or the second pipe section (3) is flush with the inner surface of the intersection well (1).

9. A buried pipeline intersection structure as claimed in claim 1 or 4 or 5 or 8, characterized in that: The intersection well (1) is in the shape of a rectangular cylinder as a whole.

10. The buried pipeline intersection structure according to claim 9, characterized in that: The intersection well (1) is formed by pouring concrete.

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