Ventilation structure of underground drainage box culvert

Abstract

The utility model relates to the field of urban underground drainage, and discloses a ventilation structure of an underground drainage box culvert, which comprises a box culvert body, a box culvert through hole is formed in the box culvert body, an anti-overflow pipe is fixedly connected to the top of the box culvert body, a ventilation hole is formed in the top of the anti-overflow pipe, and an anti-overflow column is fixedly connected to the inner wall of the top end of the anti-overflow pipe. A filter screen is fixedly connected to the interior of the bottom end of the anti-overflow pipe, a floating plate is slidably connected to the interior of the anti-overflow pipe, a clamping groove is formed in the floating plate, and a connecting pipe is fixedly connected to the top end of the anti-overflow pipe through a socket structure. According to the box culvert, the filter screen, the floating plate and the anti-overflow column are arranged, when the water flow in the box culvert body is too large, the filter screen blocks large garbage and prevents the garbage from entering the anti-overflow pipe, meanwhile, the floating plate and the anti-overflow column enable the anti-overflow pipe to be sealed, and therefore sewage and the garbage cannot enter the anti-overflow pipe to cause blockage, normal circulation of internal air is guaranteed, and the service life of the box culvert is prolonged. And the safety of maintainers is ensured.

Description

Technical Field

[0001] The utility model relates to the field of urban underground drainage, in particular to a ventilation structure of an underground drainage box culvert. Background Art

[0002] The urban underground drainage system is an indispensable "invisible lifeline" of a city. Hidden beneath the ground, it silently bears the heavy responsibility of collecting, transporting, and treating urban sewage and rainwater. This system comprises a complex network of pipes, stormwater wells, sludge wells, and sewage treatment plants, all working together to ensure unimpeded drainage. The underground drainage system plays a vital role in safeguarding the urban environment, residents' quality of life, and urban safety.

[0003] In drainage systems, box culverts effectively collect, transport, and discharge sewage and rainwater, ensuring the normal operation of cities. Their key features include structural stability, strong load-bearing capacity, and adaptability. However, during maintenance, workers must enter the culvert for inspection. To ensure adequate air circulation and prevent suffocation, a ventilation structure is required for underground drainage box culverts.

[0004] Currently, underground drainage culverts are usually directly connected to the ground using pipes. However, in actual use, when the drainage demand inside the underground box culvert is too high, the sewage in the box culvert will overflow the box culvert and overflow through the air exchange pipe. At the same time, it will bring garbage and sewage in the water into the interior of the air exchange pipe. After long-term use, the inside of the pipe may be blocked by garbage and silt, resulting in poor ventilation of the pipe, affecting the oxygen content inside the box culvert and making the internal environment of the box culvert unsuitable for manual operation. Therefore, a ventilation structure for an underground drainage box culvert is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a ventilation structure for an underground drainage culvert, which aims to improve the problem in the existing technology that when the drainage demand inside the underground culvert is too high, the sewage and garbage inside the culvert will enter the exhaust pipe, causing blockage inside the pipe.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a ventilation structure of an underground drainage culvert, comprising a culvert body, a culvert through-hole being opened inside the culvert body, an anti-overflow pipe being fixedly connected to the top of the culvert body, a vent being opened on the top of the anti-overflow pipe, an anti-overflow column being fixedly connected to the inner wall of the top end of the anti-overflow pipe, a filter being fixedly connected to the bottom end of the anti-overflow pipe, a floating plate being slidably connected to the inside of the anti-overflow pipe, a card slot being opened inside the floating plate, the top end of the anti-overflow pipe being fixedly connected to a connecting pipe via a socket structure, the top end of the connecting pipe being fixedly connected to a ventilation component via a socket structure, and the ventilation component being used to exchange the air inside the box culvert through-hole.

[0007] As a further description of the above technical solution:

[0008] The ventilation assembly includes an exhaust cover, the bottom end of the exhaust cover is fixedly connected to the top end of the connecting pipe through a socket structure, a ventilation pipe is fixedly connected inside the exhaust cover, a connecting hole is provided on the upper outer peripheral surface of the ventilation pipe, an exchange hole is provided on the lower outer peripheral surface of the ventilation pipe, and a dust shield is fixedly connected to the top end of the ventilation pipe.

[0009] As a further description of the above technical solution:

[0010] A concentric circular hole is provided inside the floating plate, and the diameter of the circular hole is smaller than the diameter of the anti-overflow column.

[0011] As a further description of the above technical solution:

[0012] The inside of the card slot is card-connected with the bottom end of the anti-overflow column.

[0013] As a further description of the above technical solution:

[0014] The socket structure includes a socket slot, which is opened at the bottom end of the connecting pipe and the exhaust cover. A socket block is fixedly connected inside the socket slot, and the bottom end of the socket block is fixedly connected to the top end of the overflow prevention pipe and the connecting pipe.

[0015] As a further description of the above technical solution:

[0016] The connecting pipes are provided in a plurality of groups, and the connecting pipes in the plurality of groups are fixedly connected to each other through a socket structure.

[0017] As a further description of the above technical solution:

[0018] The communicating hole is located above the exhaust cover, and the exchanging hole is located below the exhaust cover.

[0019] As a further description of the above technical solution:

[0020] The diameter of the dust shield is greater than the diameter of the vent pipe.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging the filter screen, the floating plate and the anti-overflow column, when the water flow inside the box culvert body is too large, the filter screen blocks the large pieces of garbage to prevent the garbage from entering the anti-overflow pipe. At the same time, the floating plate and the anti-overflow column seal the anti-overflow pipe, so that sewage and garbage will not enter the anti-overflow pipe and cause blockage, thereby ensuring the normal circulation of the internal air and protecting the safety of the maintenance personnel.

[0023] 2. In the present invention, a vent pipe and a dust shield are provided. The dust shield reduces the naturally settled dust from entering the interior of the vent pipe. At the same time, the exchange hole and the connecting hole are vertically arranged to prevent the vent pipe from being clogged by dust in the air after long-term use, thereby ensuring smooth internal air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall front view of the ventilation structure of an underground drainage box culvert proposed in the present invention;

[0025] Figure 2 This is a front cross-sectional schematic diagram of an overflow prevention pipe of a ventilation structure of an underground drainage box culvert proposed by the present invention;

[0026] Figure 3 This is a front cross-sectional schematic diagram of a ventilation pipe of a ventilation structure of an underground drainage box culvert proposed by the present invention.

[0027] Legend:

[0028] 1. Box culvert body; 2. Box culvert through hole; 3. Overflow prevention pipe; 4. Vent hole; 5. Overflow prevention column; 6. Filter screen; 7. Floating plate; 8. Slot; 9. Socket block; 10. Socket slot; 11. Connecting pipe; 12. Exhaust cover; 13. Vent pipe; 14. Connecting hole; 15. Exchange hole; 16. Dust shield. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 2The utility model provides an embodiment: a ventilation structure of an underground drainage culvert, including a culvert body 1, the culvert body 1 is provided with multiple groups, which are sealed and connected to each other, and the box culvert body 1 is provided with a box culvert through hole 2 for convenient underground drainage, and the top of the culvert body 1 is fixedly connected with an overflow-proof pipe 3. Every several groups of culvert bodies 1 are provided with a group of overflow-proof pipes 3 on the top, and the top of the overflow-proof pipe 3 is provided with a vent 4 for convenient air exchange. There are five groups of vents 4, which are evenly distributed in an annular shape on the top surface of the overflow-proof pipe 3. The inner wall of the top of the overflow-proof pipe 3 is fixedly connected with an overflow-proof column 5, and the bottom end of the overflow-proof pipe 3 is fixedly connected with a filter screen 6. The filter screen 6 can block large-diameter garbage and prevent the garbage from floating up. The overflow-proof pipe 3 is internally slidably connected with The floating plate 7 has buoyancy and will always be above the water surface. Concentric circular holes are provided inside the floating plate 7, and air can enter the interior of the overflow prevention pipe 3 through the circular holes. The diameter of the circular holes is smaller than the diameter of the overflow prevention column 5. A card slot 8 is provided inside the floating plate 7, and the inside of the card slot 8 is snap-connected with the bottom end of the overflow prevention column 5. At this time, the floating plate 7 and the overflow prevention column 5 will seal the inside of the overflow prevention pipe 3 to prevent water from continuing to spread upward. The top of the overflow prevention pipe 3 is fixedly connected to the connecting pipe 11 through a socket structure. Several groups of connecting pipes 11 are provided, and several groups of connecting pipes 11 are fixedly connected to each other through a socket structure. According to the different depths at which the box culvert body 1 is set underground, different numbers of connecting pipes 11 are provided, and the air inside the box culvert body 1 is connected to the ground.

[0031] Reference Figure 1 and Figure 3 The top of the connecting pipe 11 is fixedly connected to a ventilation component through a socket structure. The ventilation component is used to exchange the air inside the box culvert through-hole 2. The ventilation component includes an exhaust cover 12. The bottom end of the exhaust cover 12 is fixedly connected to the top of the connecting pipe 11 through a socket structure to seal the top of the connecting pipe 11. The exhaust cover 12 is fixedly connected to the inside of the ventilation pipe 13 for convenient air exchange. A connecting hole 14 is opened on the outer peripheral surface of the upper part of the ventilation pipe 13. The connecting holes 14 are provided in several groups. Several groups of connecting holes 14 are evenly distributed in an annular manner on the upper side of the ventilation pipe 13. The outer peripheral surface of the lower part of the ventilation pipe 13 is An exchange hole 15 is opened, and there are several groups of exchange holes 15. Several groups of exchange holes 15 are evenly distributed in a ring shape on the lower side of the vent pipe 13. The connecting hole 14 is located above the exhaust cover 12, and the exchange hole 15 is located below the exhaust cover 12. The air from the external environment can enter the vent pipe 13 through the connecting hole 14, and then enter the connecting pipe 11 through the exchange hole 15. A dust guard plate 16 is fixedly connected to the top of the vent pipe 13. The diameter of the dust guard plate 16 is larger than the diameter of the vent pipe 13. The dust guard plate 16 is used to reduce the naturally settled environmental dust and sewage from entering the interior of the vent pipe 13.

[0032] Reference Figure 2-Figure 3The socket structure includes a socket socket 10, which is opened at the bottom end of the connecting pipe 11 and the exhaust cover 12. A socket block 9 is fixedly connected inside the socket socket 10. The bottom end of the socket block 9 is fixedly connected to the top of the overflow prevention pipe 3 and the connecting pipe 11. The socket socket 10 and the socket block 9 are fixedly connected to each other by a connecting material with a waterproof effect to ensure the stability and sealing of the socket structure.

[0033] Working Principle: When the water flow inside the culvert body 1 is too high and sewage enters the overflow prevention pipe 3, the filter 6 blocks large pieces of garbage, preventing them from entering the overflow prevention pipe 3. Simultaneously, the sewage causes the float 7 to float, which then slides upward along the inner wall of the overflow prevention pipe 3. When the locking groove 8 engages the overflow prevention column 5, the overflow prevention pipe 3 is sealed, preventing sewage from flowing further upward. This prevents the overflow prevention pipe 3 from being blocked by garbage and silt, ensuring normal air circulation inside the culvert body 1 during maintenance. When the air inside the culvert body 1 is exchanged with the outside world, the outside air enters the vent pipe 13 through the connecting hole 14, then passes through the exchange hole 15 into the connecting pipe 11, and then enters the culvert body 1 through the vent hole 4 and the central circular hole of the float 7. The dust shield 16 reduces the contact of naturally settling dust with the vent pipe 13. The exchange hole 15 and the connecting hole 14 are vertically arranged to prevent the vent pipe 13 from being blocked by dust after long-term use, ensuring smooth internal air flow.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ventilation structure for an underground drainage culvert, comprising a culvert body (1), characterized in that: A box culvert through hole (2) is provided inside the box culvert body (1), an anti-overflow pipe (3) is fixedly connected to the top of the box culvert body (1), a vent (4) is provided on the top of the anti-overflow pipe (3), an anti-overflow column (5) is fixedly connected to the inner wall of the top end of the anti-overflow pipe (3), a filter screen (6) is fixedly connected to the bottom end of the anti-overflow pipe (3), a floating plate (7) is slidably connected to the inside of the anti-overflow pipe (3), a card slot (8) is provided inside the floating plate (7), the top end of the anti-overflow pipe (3) is fixedly connected to a connecting pipe (11) through a socket structure, the top end of the connecting pipe (11) is fixedly connected to a ventilation component through a socket structure, and the ventilation component is used to exchange air inside the box culvert through hole (2).

2. The ventilation structure of an underground drainage box culvert according to claim 1, characterized in that: The ventilation assembly comprises an exhaust cover (12), the bottom end of the exhaust cover (12) is fixedly connected to the top end of the connecting pipe (11) through a socket structure, a ventilation pipe (13) is fixedly connected inside the exhaust cover (12), a connecting hole (14) is provided on the upper outer peripheral surface of the ventilation pipe (13), an exchange hole (15) is provided on the lower outer peripheral surface of the ventilation pipe (13), and a dust shield (16) is fixedly connected to the top end of the ventilation pipe (13).

3. The ventilation structure of an underground drainage box culvert according to claim 1, characterized in that: A concentric circular hole is provided inside the floating plate (7), and the diameter of the circular hole is smaller than the diameter of the anti-overflow column (5).

4. The ventilation structure of an underground drainage box culvert according to claim 1, characterized in that: The interior of the card slot (8) is card-connected with the bottom end of the anti-overflow column (5).

5. The ventilation structure of an underground drainage box culvert according to claim 1, characterized in that: The socket structure comprises a socket (10), the socket (10) being provided at the bottom ends of the connecting pipe (11) and the exhaust cover (12), a socket block (9) being fixedly connected inside the socket (10), and the bottom end of the socket block (9) being fixedly connected to the top ends of the overflow prevention pipe (3) and the connecting pipe (11).

6. The ventilation structure of an underground drainage box culvert according to claim 1, characterized in that: The connecting pipes (11) are provided in a plurality of groups, and the connecting pipes (11) in the plurality of groups are fixedly connected to each other via a socket structure.

7. The ventilation structure of an underground drainage box culvert according to claim 2, characterized in that: The communicating hole (14) is located above the exhaust cover (12), and the exchanging hole (15) is located below the exhaust cover (12).

8. The ventilation structure of an underground drainage box culvert according to claim 2, characterized in that: The diameter of the dust shield (16) is greater than the diameter of the vent pipe (13).

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