Quick-release floor drain for municipal drainage

Abstract

This utility model discloses a quick-release floor drain for municipal drainage, relating to the field of floor drain technology. The quick-release floor drain for municipal drainage includes a floor drain shell, a fixed frame fixedly connected inside the floor drain shell, a floor drain grating plate installed inside the fixed frame, and an anti-backflow structure located on the floor drain shell. The anti-backflow structure includes a support frame, a mounting frame, multiple guide plates, four bolts, multiple anti-impact plates, and multiple rotating shafts. The support frame is fixedly connected inside the floor drain shell. This utility model, through its unique anti-backflow structure, utilizes the synergistic effect of the guide plates, coil springs, limiting blocks, and anti-impact plates to quickly form a sealing barrier when backflow occurs in the drainage pipe, effectively preventing sewage and sediment from flowing back to the ground. This improves the anti-backflow capability of the floor drain, protects urban environmental sanitation and pedestrian health and safety, and reduces ground pollution caused by sewage backflow.

Description

Technical Field

[0001] This utility model relates to the field of floor drain technology, and in particular to a quick-release floor drain for municipal drainage. Background Technology

[0002] As a key component of urban infrastructure, the municipal drainage system bears the heavy responsibility of collecting, transporting, and discharging urban sewage and rainwater. Its stable operation is directly related to the city's environmental sanitation, flood control and drainage capacity, and the quality of life of its residents.

[0003] In practical applications, existing quick-release floor drains for municipal drainage often suffer from backflow due to the shared nature of municipal drainage networks and varying drainage pressures across different areas. This is especially problematic during peak rainy seasons, when pipes are blocked, or when downstream water levels rise abnormally. Backflow can cause sewage and odors to flow back onto the ground from the drain opening. This backflow not only pollutes the public environment but can also breed mosquitoes and emit foul odors, impacting the living experience of nearby residents and pedestrians. More seriously, impurities in the backflowing sewage can clog the quick-release structure of the drain, preventing proper disassembly for subsequent maintenance. Therefore, we propose a new quick-release floor drain for municipal drainage. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a quick-release floor drain for municipal drainage. This solution addresses the issue that, in practical applications, municipal drainage pipes are mostly shared networks, and drainage pressure varies in different areas. Especially during peak rainy seasons, when pipes are blocked, or when downstream water levels rise abnormally, reverse water pressure can easily form within the pipes, causing sewage and odors to flow back to the ground from the drain opening. This backflow not only pollutes the municipal public environment but may also breed mosquitoes and emit foul odors, affecting the living experience of nearby residents and pedestrians. More seriously, impurities in the backflowing sewage may clog the quick-release structure of the drain, making it impossible to disassemble the drain properly for subsequent maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release floor drain for municipal drainage, comprising: The drain housing has a fixed frame inside, and a drain grating is installed inside the fixed frame. Anti-backflow structure, located on the outer shell of the floor drain; The anti-backflow structure includes a support frame, a mounting frame, multiple guide plates, four bolts, multiple anti-impact plates, and multiple rotating shafts. The support frame is fixedly connected to the inside of the drain housing. The mounting frame is installed on the top of the support frame by four bolts. The multiple rotating shafts are rotatably connected to the inside of the mounting frame. The multiple guide plates are fixedly sleeved on the outer surface of the corresponding rotating shafts. The multiple anti-impact plates are fixedly connected to the bottom of the corresponding guide plates. The inner wall of the mounting frame has multiple transmission grooves.

[0006] Preferably, the anti-backflow structure further includes multiple coil springs and multiple limiting blocks. The multiple limiting blocks are all fixedly connected inside the mounting frame. The multiple guide plates are all in contact with the corresponding two limiting blocks. The two ends of the multiple rotating shafts are all rotatably extended into the interior of the corresponding transmission groove. The multiple coil springs are all sleeved on the outer surface of the corresponding rotating shafts. The multiple coil springs are all located inside the corresponding transmission grooves.

[0007] Preferably, two sealing rings are fixedly connected to the outer surfaces of the plurality of rotating shafts, and the plurality of sealing rings are located inside the corresponding transmission grooves.

[0008] Preferably, the inner ends of the plurality of coil springs are fixedly connected to the outer surface of the corresponding rotating shaft, and the outer ends of the plurality of coil springs are fixedly connected to the interior of the corresponding transmission groove.

[0009] Preferably, the plurality of the guide vanes are arranged in a linear array inside the mounting frame.

[0010] Preferably, the drain grating is provided with bolts two inside, and the drain grating is installed on the fixed frame by bolts two.

[0011] Preferably, the top of the drain grating is provided with multiple water flow channels.

[0012] Preferably, a guide block is fixedly connected inside the drain housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This quick-release floor drain for municipal drainage features a unique anti-backflow structure. By utilizing the synergistic effect of a guide plate, coil spring, limiting block, and anti-collision plate, it can quickly form a sealing barrier when backflow occurs in the drainage pipe, effectively preventing sewage and sediment from flowing back to the ground. This improves the anti-backflow capability of the floor drain, protects urban environmental sanitation and pedestrian health and safety, and reduces ground pollution caused by sewage backflow. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a schematic diagram of the cross-sectional structure of the drain shell of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting frame of this utility model; Figure 4 This is a schematic diagram of the drain grating structure of this utility model; Figure 5 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0015] Reference numerals in the attached drawings: 1. Drain housing; 2. Fixing frame; 3. Drain grating; 4. Guide block; 5. Mounting frame; 6. Support frame; 7. Flow deflector; 8. Anti-impact plate; 9. Limiting block; 10. Coil spring; 11. Sealing ring; 12. Rotating shaft; 13. Transmission groove; 14. Bolt 1; 15. Bolt 2; 16. Water flow channel. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Floor drain shell 1: As the main support structure of the floor drain, it is internally fixed to the fixing frame 2, the support frame 6 and the guide block 4, providing an installation base for other components, and can also guide the water discharged through the anti-backflow structure into the drainage pipe below. Fixed frame 2: Fixedly connected inside the drain housing 1, used to install the drain grating plate 3, providing a stable installation carrier for the drain grating plate 3; Floor drain grating 3: Installed on the fixed frame 2 by bolts 15. Multiple water flow channels 16 opened at the top can provide channels for water to enter the floor drain. At the same time, it can initially filter the water flow, block larger debris from entering the floor drain to prevent blockage. It is also easy to disassemble, making it convenient for cleaning itself or maintaining the inside of the floor drain. Guide block 4: It is fixedly connected inside the drain shell 1 and can guide the water flow into the drain to the anti-backflow structure to ensure that the water flow is accurately directed to the drainage channel; Mounting frame 5: It is installed on the top of the support frame 6 by four bolts 14. Multiple rotating shafts 12 are rotatably connected inside, and multiple limiting blocks 9 are fixedly connected. Multiple transmission grooves 13 are opened on the inner wall to provide installation and working space for components such as guide plate 7, rotating shaft 12, and coil spring 10. Support frame 6: It is fixedly connected inside the drain housing 1 and is used to support the mounting frame 5, providing a stable mounting support point for the mounting frame 5; The guide plate 7 is fixedly sleeved on the outer surface of the corresponding rotating shaft 12 in a linear array, and the bottom is fixedly connected to the corresponding anti-impact plate 8 and in contact with the two corresponding limit blocks 9. During normal drainage, the water flow impact can make it rotate around the rotating shaft 12 and be limited by the limit blocks 9, opening the drainage channel, and at the same time driving the rotating shaft 12 to rotate and store the force of the coil spring 10. When backflow occurs in the drainage pipe, it is in a horizontal state under the pressure of the backflow water and the limiting action of the anti-impact plate 8, forming a sealing barrier surface to prevent sewage backflow. Anti-surge plate 8: It is fixedly connected to the bottom of the corresponding guide plate 7. When the drainage pipe is backflowed, it can work with the backflow pressure to limit the guide plate 7, so that the guide plate 7 remains horizontal to form a sealing and blocking surface. Limiting block 9: It is fixedly connected inside the mounting frame 5. During normal drainage, it can limit the flow guide plate 7 that rotates around the rotating shaft 12 to ensure that the flow guide plate 7 rotates to a suitable angle to open the drainage channel. Coil spring 10: It is sleeved on the outer surface of the corresponding rotating shaft 12 and located inside the transmission groove 13. Its inner end is fixedly connected to the outer surface of the rotating shaft 12, and its outer end is fixedly connected to the inside of the transmission groove 13. During normal drainage, the guide plate 7 drives the rotating shaft 12 to rotate so that it can store energy. After the water flows through, its elasticity can drive the rotating shaft 12 and the guide plate 7 to return to their initial positions, preparing for the next drainage. Sealing ring 11: It is fixedly connected to the outer surface of the corresponding rotating shaft 12 and located inside the transmission groove 13. It can prevent water from entering the transmission groove 13 and avoid affecting the normal operation of the coil spring 10. Rotating shaft 12: Rotatably connected inside the mounting frame 5, with both ends extending into the corresponding transmission groove 13. The outer surface is fixedly sleeved with the guide plate 7, fixedly connected with the sealing ring 11, and sleeved with the coil spring 10. During normal drainage, it can rotate under the drive of the guide plate 7 and store the force of the coil spring 10. After the water flows through, it can drive the guide plate 7 to reset under the elastic force of the coil spring 10. Transmission groove 13: It is formed in the inner wall of the mounting frame 5 to accommodate the two ends of the rotating shaft 12, the coil spring 10 and the sealing ring 11, and to provide space for the rotating shaft 12 to rotate, the coil spring 10 to store force and reset. Water flow channel 16: Multiple channels are provided on the top of the floor drain grating plate 3 to provide a passage for the water to flow into the floor drain, ensuring that the water flows smoothly into the floor drain.

[0021] Example 1: like Figure 1-5 As shown, during normal drainage, the water flow impacts the guide plate 7. Since the guide plate 7 is fixedly sleeved on the rotating shaft 12, the power of the water flow will cause the guide plate 7 to rotate around the rotating shaft 12 at a certain angle, so that the limiting block 9 can limit the rotation of the guide plate 7, thereby opening the drainage channel and allowing the water flow to pass smoothly through the anti-backflow structure and be discharged into the drainage pipe below through the drain shell 1. The guide plate 7 drives the rotating shaft 12 to rotate, which will simultaneously drive the two coil springs 10 to store force. After the water flow passes, the elastic force of the coil springs 10 will cause the rotating shaft 12 to drive the guide plate 7 to return to the initial position, ensuring that the guide plate 7 can accurately return to the appropriate position during normal drainage, and prepare for the next drainage.

[0022] When the water level in the drainage pipe rises or backflow occurs, sewage, silt, etc. will attempt to flow back to the ground through the floor drain. At this time, the backflow will exert an upward pressure on the guide plate 7 and the anti-rush plate 8. The pressure of the backflow will cause the guide plate 7 to be in a horizontal state under the limit of the corresponding anti-rush plate 8, forming a sealed blocking surface.

[0023] Example 2: like Figure 5 As shown, the sealing ring 11 is made of chemically resistant fluororubber. Fluororubber has excellent chemical resistance and can remain stable in various harsh chemical environments. It is not easily corroded by corrosive substances such as acids and alkalis, making its contact with the rotating shaft 12 and the transmission groove 13 tighter and forming a better sealing effect.

[0024] Furthermore, when using this device, when water needs to be discharged, the water first flows through the drain grille 3. The multiple water passages 16 opened on the top of the drain grille 3 provide channels for the water flow, allowing the water to smoothly enter the drain. At the same time, the drain grille 3 can play a preliminary filtering role, blocking larger debris from entering the drain and preventing blockage.

[0025] Multiple guide plates 7 in the anti-backflow structure are arranged in a linear array inside the mounting frame 5. During normal drainage, the water flow impacts the guide plates 7. Since the guide plates 7 are fixedly sleeved on the rotating shaft 12, the power of the water flow will cause the guide plates 7 to rotate around the rotating shaft 12 at a certain angle, so that the limiting block 9 can limit the rotating guide plates 7, thereby opening the drainage channel and allowing the water flow to pass smoothly through the anti-backflow structure and be discharged into the drainage pipe below through the drain shell 1. The guide plates 7 drive the rotating shaft 12 to rotate, which will simultaneously drive the two coil springs 10 to store force.

[0026] After the water flows through, the elastic force of the coil spring 10 will cause the rotating shaft 12 to drive the guide plate 7 back to its initial position, ensuring that the guide plate 7 can accurately return to the appropriate position during normal drainage, and prepare for the next drainage. In addition, the two sealing rings 11 fixed on the outer surface of the rotating shaft 12 are located inside the transmission groove 13, which can prevent water from entering the transmission groove 13 and avoid affecting the normal operation of the coil spring 10.

[0027] When the water level in the drainage pipe rises or backflow occurs, sewage, silt, etc. will attempt to flow back to the ground through the floor drain. At this time, the backflow will exert an upward pressure on the guide plate 7 and the anti-rush plate 8. The pressure of the backflow will cause the guide plate 7 to be in a horizontal state under the limit of the corresponding anti-rush plate 8, forming a sealed blocking surface.

[0028] The drain grating 3 is installed on the fixed frame 2 by bolts 2 and 15. When it is necessary to clean the drain grating 3 or maintain the inside of the drain, simply unscrew bolts 2 and 15 to remove the drain grating 3 from the fixed frame 2. The operation is convenient and quick. When it is necessary to repair or replace the anti-backflow structure, unscrew four bolts 1 and 14 to remove the mounting frame 5, along with its internal guide plate 7, rotating shaft 12, and other components, from the support frame 6. This allows for quick disassembly of the anti-backflow structure, facilitating maintenance and replacement. The water flowing into the drain is guided to the anti-backflow structure by the guide block 4.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A quick-release floor drain for municipal drainage, characterized in that, include: The drain housing (1) has a fixed frame (2) inside, and a drain grid plate (3) is installed inside the fixed frame (2). Anti-backflow structure, the anti-backflow structure is located on the outer shell (1) of the floor drain; The anti-backflow structure includes a support frame (6), a mounting frame (5), multiple guide plates (7), four bolts (14), multiple anti-impact plates (8), and multiple rotating shafts (12). The support frame (6) is fixedly connected to the inside of the drain housing (1), and the mounting frame (5) is installed on the top of the support frame (6) by four bolts (14). Among them, multiple rotating shafts (12) are rotatably connected inside the mounting frame (5), multiple guide plates (7) are fixedly sleeved on the outer surface of the corresponding rotating shaft (12), multiple anti-impact plates (8) are fixedly connected to the bottom of the corresponding guide plate (7), and multiple transmission grooves (13) are opened on the inner wall of the mounting frame (5).

2. A quick release floor drain for municipal drainage according to claim 1, characterized in that: The anti-backflow structure also includes multiple coil springs (10) and multiple limiting blocks (9). The multiple limiting blocks (9) are all fixedly connected inside the mounting frame (5), and the multiple guide plates (7) are all in contact with the corresponding two limiting blocks (9). In this configuration, both ends of multiple rotating shafts (12) extend into the interior of the corresponding transmission groove (13), multiple coil springs (10) are sleeved on the outer surface of the corresponding rotating shaft (12), and multiple coil springs (10) are located inside the corresponding transmission groove (13).

3. A quick release floor drain for municipal drainage according to claim 1, characterized in that: Two sealing rings (11) are fixedly connected to the outer surface of each of the multiple rotating shafts (12), and the multiple sealing rings (11) are located inside the corresponding transmission grooves (13).

4. A quick release floor drain for municipal drainage according to claim 2, characterized in that: The inner ends of the multiple coil springs (10) are fixedly connected to the outer surface of the corresponding rotating shaft (12), and the outer ends of the multiple coil springs (10) are fixedly connected to the interior of the corresponding transmission groove (13).

5. A quick release floor drain for municipal drainage according to claim 1, characterized in that: Multiple of the aforementioned guide vanes (7) are arranged in a linear array inside the mounting frame (5).

6. A quick release floor drain for municipal drainage according to claim 1, characterized in that: The drain grating (3) is provided with bolts (2, 15) inside, and the drain grating (3) is installed on the fixed frame (2) by bolts (2, 15).

7. A quick-release floor drain for municipal drainage according to claim 1, characterized in that: The top of the drain grating (3) is provided with multiple water flow channels (16).

8. A quick release floor drain for municipal drainage according to claim 1, characterized in that: The drain housing (1) is internally fixedly connected to a guide block (4).

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