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CN-224199937-U - Manhole cover capable of distinguishing rainwater and sewage flow directions

CN224199937UCN 224199937 UCN224199937 UCN 224199937UCN-224199937-U

Abstract

The utility model discloses a manhole cover capable of distinguishing the flow direction of rain water and sewage, which consists of an indication component embedded in the manhole cover and an air bag component embedded in the manhole cover, wherein the indication component and the air bag component are in wireless communication. The air bag component comprises an annular air bag and a mounting plate, wherein a flow rate meter and a power supply are fixed on the annular air bag component, the flow rate meter is provided with a wireless communication module, a probe is positioned in a screen below the air bag and transmits data through a radio frequency antenna, an air bag guiding structure is arranged in a well and consists of a guiding rod, a fixing seat, an adjusting rod and the like, and the air bag is ensured to vertically suspend. The top of the indication component is provided with a digital display unit. The well lid suspends and detects the flow speed and the flow direction through the air bag component, can wirelessly transmit data to the well lid for display without uncapping, eliminates uncapping potential safety hazards, improves detection efficiency, avoids sundry interference and misjudgment of the flow direction through a screen structure and a guide design, can more accurately identify the water flow direction compared with the traditional method, is suitable for complex drainage scenes, and provides an efficient and reliable scheme for urban drainage system detection.

Inventors

  • SUN QUAN
  • ZHOU JINKUN
  • NIE QIAO
  • ZHAO XINGXING
  • ZENG ZHAOCAI

Assignees

  • 长江生态环保集团有限公司

Dates

Publication Date
20260505
Application Date
20250523

Claims (10)

  1. 1. The inspection well cover capable of distinguishing the flow direction of rain and sewage is characterized by comprising an indication assembly (4) embedded in the well cover (2) and an air bag assembly (5) arranged in the inspection well (1), wherein a water flow speed and flow direction detection module is arranged in the air bag assembly (5), the air bag assembly (5) is in wireless communication connection with the indication assembly (4), a digital display unit is arranged at the inner top of the indication assembly (4), and a guide structure of the air bag assembly (5) is vertically arranged in the inspection well (1).
  2. 2. The manhole cover capable of distinguishing the rainwater and sewage flow direction according to claim 1, wherein the air bag assembly (5) comprises an annular air bag (51), a mounting plate (52) fixedly connected in the air bag (51), a flow rate meter (54) and a power supply (56), the flow rate meter (54) is embedded with a wireless communication module for converting detection data into wireless signals and transmitting the wireless signals to the indication assembly (4), the top of the mounting plate (52) is provided with a cover plate (58) for sealing the flow rate meter (54), the cover plate (58) is provided with an antenna, the wireless communication module is connected with the antenna through a radio frequency interface, a probe (57) at the detection end of the flow rate meter (54) penetrates through the mounting plate (52), and the probe (57) is located below the air bag (51).
  3. 3. A manhole cover capable of distinguishing the direction of the flow of the rainwater and the sewage according to claim 2, wherein the hemispherical screen structure is arranged at the bottom of the mounting plate (52), and the probe (57) is positioned at the inner side of the screen structure.
  4. 4. The manhole cover capable of distinguishing the rainwater and sewage flow direction according to claim 3, wherein the edge of the screen structure is coaxially and fixedly connected with an annular fixing ring, a screw rod is fixed on the fixing ring, through holes for the screw rod to pass through are formed in the edges of the mounting plate (52) and the cover plate (58), and a sealing gasket is connected to a nut for locking the cover plate (58).
  5. 5. The manhole cover capable of distinguishing the rainwater and sewage flow directions according to claim 2, wherein the bottom of the mounting plate (52) is vertically and fixedly provided with a mounting sleeve (55), the probe (57) is positioned in the mounting sleeve (55), a sealing ring is arranged in the mounting sleeve (55), and the inner side of the sealing ring is attached to the probe (57).
  6. 6. The manhole cover capable of distinguishing the rainwater and sewage flow directions according to claim 2, wherein an annular sealing belt (53) is connected to the inner side of the air bag (51), the inner side of the sealing belt (53) is fixedly connected with the mounting plate (52), and the sealing belt (53) covers a connecting seam between the mounting plate (52) and the air bag (51).
  7. 7. The manhole cover capable of distinguishing the rainwater and sewage flow direction according to claim 2, wherein the top of the cover plate (58) is fixedly connected with a pull rope (7), the movable end of the pull rope (7) is fixedly connected with a limiting block, a penetrating ring is fixed at the wellhead of the manhole (1), the movable end of the pull rope (7) penetrates through the penetrating ring, and the outer diameter of the limiting block is larger than the inner diameter of the penetrating ring.
  8. 8. The manhole cover capable of distinguishing the rainwater and sewage flow direction according to claim 1, wherein the guide structure comprises a guide rod (6) vertically fixed at the inner bottom of the manhole (1) and a fixing seat (8) fixed at the inner top of the manhole (1), a bent pipe is arranged at the movable end of the fixing seat (8), an adjusting rod (9) is rotatably connected to the end part of the bent pipe, the movable end of the adjusting rod (9) is connected with the top end of the guide rod (6) through a pin, and the air bag assembly (5) is connected to the guide rod (6) in a sliding mode.
  9. 9. The manhole cover capable of distinguishing the rainwater and sewage flow directions according to claim 8, wherein a pull rope (10) is fixedly connected to the outer side of the movable end of the adjusting rod (9), a limiting block (11) is fixedly connected to the top of the fixing seat (8), the pull rope (10) penetrates through the limiting block (11), and a connecting ring (12) is fixedly connected to the movable end of the pull rope (10).
  10. 10. The manhole cover capable of distinguishing the rainwater and sewage flow directions according to claim 1 is characterized in that an auxiliary cover plate (3) is hinged to the middle of the manhole cover (2), and the indication assembly (4) is located below the auxiliary cover plate (3).

Description

Manhole cover capable of distinguishing rainwater and sewage flow directions Technical Field The utility model relates to the technical field of manhole covers, in particular to a manhole cover capable of distinguishing the flow direction of rain water and sewage. Background Inspection wells are extremely critical facilities in urban drainage systems and in various engineering fields involving plumbing flows. The main functions of the device are to cover the aspects of checking and maintaining pipelines, connecting different pipelines to ensure the smoothness and integrity of a drainage system, adjusting flow, preventing pollution, providing safety protection and the like. For example, in urban sewer, the inspection shaft is convenient for staff to periodically inspect, and accumulated sewage and sediment are cleaned in time, so that the problems of odor, blockage and the like are avoided, and the urban environment and the life of citizens are influenced. In order to judge whether the sewage pipeline is blocked and pollution traced, the flow direction of sewage in adjacent pipelines needs to be checked, but the traditional inspection well water flow direction identification method has obvious defects. One common way is to manually open the well lid and then check the surrounding ground slope with a level to infer the water flow direction, however, this way is limited by the complexity and inaccuracy of the ground slope, and for a well under deep ground or a surrounding terrain complex inspection well, the ground slope is not completely consistent with the water flow direction in the well, resulting in a large deviation of the determination result. In addition, the water flow direction is determined by observing the moving direction of simple tools such as paper boards, floaters and the like, and the method is easily interfered by complex water flow states in the well, for example, under the conditions of high water level operation, full pipe operation and the like, water flow collides with the well wall to form backflow, so that the surface water flow direction is wrong, and the judgment result based on the movement of the floaters is inaccurate. Moreover, in some cases, the water flow direction is visually opposite to the actual direction only by opening the well cover. The traditional inspection well water flow direction identification must open the well lid in advance, and the operation is time-consuming and laborious and has a plurality of defects. On one hand, the frequent opening of the well cover increases the labor intensity of workers and reduces the working efficiency, on the other hand, the operation of opening the well cover can cause certain influence on traffic, traffic jam is easy to be caused in areas with heavy traffic, and meanwhile, potential safety hazards such as pedestrians or vehicles fall into the well mouth carelessly are brought. In addition, in some severe environments, such as high temperature, severe cold, heavy rain and other weather conditions, the difficulty and danger of well lid opening operations are further increased. Moreover, in some special areas, such as chemical industry parks, flammable and explosive places and the like, safety accidents can be caused by opening the well cover. Therefore, a technical scheme is needed that the manhole cover does not need to be opened, and the water flow direction of the manhole can be identified efficiently and accurately, so as to solve the defects in the prior art. Disclosure of Invention The utility model aims to solve the technical problem that the inspection well water flow direction identification needs to be detected after the well cover is opened. In order to solve the technical problems, the technical scheme is that the inspection well cover capable of distinguishing the flow direction of the rainwater and the sewage comprises an indication assembly embedded in the well cover and an air bag assembly arranged in the inspection well, wherein a water flow speed and flow direction detection module is arranged in the air bag assembly, the air bag assembly is in wireless communication connection with the indication assembly, a digital display unit is arranged at the inner top of the indication assembly, and a guide structure of the air bag assembly is vertically arranged in the inspection well. Preferably, the air bag assembly comprises an annular air bag, a mounting plate fixedly connected in the air bag, a flow velocity meter and a power supply, wherein the flow velocity meter is fixed on the mounting plate, a wireless communication module for converting detection data into wireless signals and transmitting the wireless signals to the indication assembly is embedded in the flow velocity meter, a cover plate of the sealing flow velocity meter is mounted on the top of the mounting plate, an antenna is mounted on the cover plate, the wireless communication module is connected with the antenna through a radio frequency interface, an