Smart city septic tank inspection well cover monitoring system

Abstract

The utility model provides a smart city septic tank inspection well cover monitoring system, which comprises an inspection well cover, an inspection well cover monitoring system and an inspection well cover monitoring system, the protective frame is arranged at the lower end of the inspection well cover and comprises a bottom plate, a mounting fence arranged in the center of the bottom plate and a plurality of guide pieces arranged on the peripheral side of the mounting fence, the mounting fence is annularly closed, the middle of the mounting fence is enclosed to form a mounting area with an opening in the bottom, and the thickness of the guide pieces is gradually reduced towards the edge of the bottom plate in the radial direction of the mounting fence; the movable support comprises a sliding seat and a protruding part, and a working area is formed at the bottom of the protruding part; the monitoring assembly is arranged in the working area; the elastic supporting piece is arranged between the bottom of the mounting area and the sliding seat; wherein a guide face is arranged on the peripheral side of the protruding part so that the protruding part can be pressed into the installation area when being pressed, the telescopic monitoring assembly is arranged below the inspection well cover of the septic tank, safety protection of the sensor is guaranteed, and monitoring sensitivity and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas monitoring systems, in particular to a septic tank manhole cover monitoring system for smart cities. Background Art

[0002] Septic tanks are a key component of urban sewage treatment systems and are widely used in urban and rural areas. Their main function is to decompose feces and solid waste through the anaerobic digestion process, thereby producing usable energy such as biogas. However, a series of gases with strong odors and potential hazards are produced during the anaerobic digestion process, such as biogas and ammonia nitrogen gas (N-NH3). These gases not only pose a threat to human health, but may also cause safety hazards. In addition, the sludge accumulated inside the septic tank may cause pipe blockages, affect the normal operation of the system, and even cause feces to overflow onto the ground, producing an unpleasant odor.

[0003] With the development of the concept of smart cities, intelligent management of urban infrastructure has become particularly important. As part of urban infrastructure, septic tanks and their manhole covers also need to be transformed into intelligent ones to improve management efficiency and safety. Existing septic tank ammonia nitrogen gas monitoring systems usually include a working box installed above the septic tank and an ammonia nitrogen gas monitoring component. The monitoring component is connected to the control panel in the working box through wires to collect and process monitoring data. However, these systems often ignore the effective monitoring of the status of the manhole cover, such as whether the manhole cover is open or shifted. These problems may cause the manhole cover to collide with the working box and cause damage during the dragging process.

[0004] In order to fully protect the working box, some solutions have appeared on the market. For example, a municipal manhole cover displacement monitoring device disclosed in China with a publication number of CN218713311U encloses an installation area for installing and fixing the sensor assembly through a base, an installation enclosure and guide ribs. The sensor assembly is completely embedded in the installation area, and the guide ribs are used to guide the manhole cover when it is opened, so that the contact point between the entire manhole cover and the wellhead moves smoothly along the guide ribs to the surface of the installation enclosure, thereby achieving full protection for the sensor assembly and avoiding damage to the sensor assembly when the manhole cover is opened.

[0005] However, although the above-mentioned manhole cover monitoring device achieves effective protection for the sensor assembly, the sensor assembly is hidden in the installation area, so that the sides of the sensor assembly are surrounded by the installation enclosure, which sacrifices the detection sensitivity of the sensor assembly to a certain extent, which is not conducive to the accurate monitoring of the gas in the septic tank.

[0006] In view of this, the inventor specially designed a septic tank manhole cover monitoring system for smart cities, and this case came into being. Utility Model Content

[0007] In order to solve the problem of improving the accuracy and reliability of monitoring while ensuring the protection of the sensor components, the technical solution of the utility model is as follows:

[0008] Smart city septic tank manhole cover monitoring system, including:

[0009] Manhole covers are installed at the mouths of urban septic tanks to control the opening and closing of the mouths;

[0010] The protective frame is detachably arranged on the lower end surface of the manhole cover, and includes a bottom plate, a mounting enclosure arranged at the center of the bottom plate, and a plurality of guide pieces arranged around the mounting enclosure. The mounting enclosure is annularly closed and the middle part encloses a mounting area with a bottom opening. The thickness of the guide piece gradually decreases along the radial direction of the mounting enclosure toward the edge of the bottom plate.

[0011] The movable bracket comprises a sliding seat arranged on the side wall of the installation area and sliding along the opening direction of the installation enclosure, and a protrusion arranged on the side of the sliding seat away from the installation area, wherein the bottom of the protrusion is recessed inwardly to form a working area;

[0012] A monitoring component, located in the work area, is used to monitor the concentration of septic tank gases;

[0013] An elastic support member, disposed between the bottom of the installation area and the sliding seat, for elastically supporting the sliding seat so that the protruding portion remains protruding from the installation area under normal conditions;

[0014] Wherein, a guide surface is provided on the peripheral side of the protrusion so that it is pressed into the installation area when it is pressed.

[0015] Preferably, the guide surface is an arc-shaped surface, and the arc-shaped opening direction of the arc-shaped surface faces the inside of the installation area.

[0016] Preferably, the opening position of the working area is covered with an interception filter for intercepting foreign particles.

[0017] Preferably, the elastic support member is a reset spring, the upper end of the sliding seat is recessed inwardly to provide a positioning groove, the bottom of the installation area is provided with a positioning column at a position corresponding to the positioning groove, and the two ends of the reset spring are respectively inserted into the positioning groove and around the positioning column.

[0018] Preferably, four return springs are evenly arranged around the circumference of the installation area, and four positioning grooves and positioning columns are correspondingly arranged.

[0019] Preferably, the monitoring component includes a detection module, a control module, a power module and a remote transmission module that are electrically connected to each other, the control module, the remote transmission module and the detection module are all arranged at the bottom of the working area, and the power module is arranged at the bottom of the installation area and is electrically connected to the input end of the control module through wiring.

[0020] Preferably, the remote transmission module is wirelessly connected to the control center for transmitting gas concentration data.

[0021] Preferably, the remote transmission module is remotely connected to the control center via a GPRS module.

[0022] Preferably, the detection module includes an ammonia nitrogen gas sensor, a hydrogen sulfide gas sensor and a biogas sensor.

[0023] Preferably, a ring-shaped limiting edge is provided on the peripheral side of the sliding seat and on the side close to the protruding portion, and a limiting groove is provided along the axial direction of the side wall of the installation area for allowing the limiting edge to move and limiting its range of movement.

[0024] The beneficial effects of the utility model are as follows:

[0025] The utility model not only ensures the safety protection of the sensor, but also improves the sensitivity and accuracy of monitoring by setting a retractable monitoring component under the manhole cover of the septic tank. At the same time, the gas concentration in the septic tank can be monitored in real time through the remote transmission module, which enhances the intelligence level of the system and improves management efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0027] in:

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the manhole cover in the utility model;

[0030] Figure 3 It is a schematic diagram of the structure of the manhole cover in the utility model when viewed from above;

[0031] Figure 4 It is a connection principle block diagram of the utility model;

[0032] Figure 5 It is a structural block diagram of the detection module in the utility model.

[0033] Description of labels:

[0034] 10. Manhole cover; 20. Protection frame; 21. Bottom plate; 22. Installation enclosure; 23. Guide piece; 231. Locking groove; 24. Installation area; 241. Limit groove; 25. Positioning column; 30. Movable support; 31. Sliding seat; 32. Protrusion; 321. Guide surface; 33. Working area; 34. Intercepting filter screen; 35. Positioning groove; 36. Limit edge; 40. Monitoring component; 41. Detection module; 411. Ammonia nitrogen gas sensor; 412. Hydrogen sulfide gas sensor; 413. Biogas sensor; 42. Control module; 43. Power module; 431. Wiring; 44. Remote transmission module; 45. Control center; 50. Elastic support; 60. Septic tank; 61. Wellhead. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] Please refer to Figures 1 to 5 , which is a monitoring system for the manhole cover of a septic tank in a smart city as the best embodiment of the present utility model, and includes:

[0037] The manhole cover 10 is covered on the wellhead 61 of the urban septic tank 60 and is used to control the opening and closing of the wellhead 61;

[0038] The protection frame 20 is detachably arranged on the lower end surface of the manhole cover 10, and includes a bottom plate 21, an installation enclosure 22 arranged at the center of the bottom plate 21 and a plurality of guide pieces 23 arranged on the periphery of the installation enclosure 22. The installation enclosure 22 is annularly closed and a bottom-opening installation area 24 is formed in the middle. The guide pieces 23 gradually decrease in thickness along the radial direction of the installation enclosure 22 towards the edge of the bottom plate 21;

[0039] The movable support 30 includes a sliding seat 31 slidably arranged on the side wall of the installation area 24 along the opening direction of the installation enclosure 22 and a protrusion 32 arranged on the side of the sliding seat 31 away from the installation area 24. A working area 33 is formed by the inward depression at the bottom of the protrusion 32;

[0040] The monitoring component 40 is arranged in the working area 33 and is used to monitor the gas concentration in the septic tank 60;

[0041] The elastic support 50 is arranged between the bottom of the installation area 24 and the sliding seat 31 and is used to elastically support the sliding seat 31 so that the protrusion 32 remains in a position protruding from the installation area 24 under normal conditions;

[0042] Wherein, a guide surface 321 is arranged on the periphery of the protrusion 32 so that when it is pressed, it is pressed into the installation area 24.

[0043] Specifically, in this embodiment, the guiding piece 23 is a metal piece, and a locking groove 231 is formed by downward depression on the side of the guiding piece 23 close to the bottom plate 21. A locking hole (not marked in the figure) for locking and fixing with the bottom plate 21 is opened at the inner bottom of the locking groove 231.

[0044] Specifically, as Figure 2 shown, the guiding surface 321 is an arc surface, and the arc opening direction of the arc surface faces the inside of the installation area 24. Thus, a circular arc-shaped guiding surface 321 is formed around the circumference of the protruding part 32, so that when the protruding part 32 is squeezed, the whole movable bracket 30 can move in the direction of the inside of the installation area 24 under the guiding action of the guiding surface 321, which is convenient for the movable bracket 30 to make adaptive changes when opening or dragging the manhole cover 10.

[0045] Preferably, as Figure 2 shown, an intercepting filter screen 34 for intercepting impurity particles is covered at the opening position of the working area 33. In this embodiment, the intercepting filter screen 34 is a primary filter screen, so as to prevent some suspended particles such as dust from entering the working area 33 and affecting the normal operation of the monitoring components.

[0046] Preferably, as Figure 2 shown, the elastic support member 50 is a return spring. A positioning groove 35 is formed by inward depression at the upper end of the sliding seat 31, and a positioning post 25 is provided at the position corresponding to the positioning groove 35 at the inner bottom of the installation area 24. The two ends of the return spring are respectively inserted into the positioning groove 35 and the periphery of the positioning post 25. In this embodiment, four return springs are evenly arranged around the circumference of the installation area 24, and four positioning grooves 35 and positioning posts 25 are correspondingly provided. By using a return spring as the elastic support member 50 in the monitoring system of the manhole cover 10 of the septic tank 60, the movable bracket 30 can be pushed out in the direction away from the installation area 24, so that the monitoring component 40 can be kept in a state protruding from the protection frame 20 under normal conditions, which is convenient for monitoring the gas state in the septic tank 60.

[0047] Preferably, as Figure 2 、 4As shown, the monitoring component 40 includes a detection module 41, a control module 42, a power module 43 and a remote transmission module 44 which are electrically connected to each other. The control module 42, the remote transmission module 44 and the detection module 41 are all arranged at the bottom of the working area 33, the power module 43 is arranged at the bottom of the installation area 24 and is electrically connected to the input end of the control module 42 through the wiring 431. In this embodiment, the control module 42 is an MCU microprocessor, and the power module 43 is arranged at the bottom of the installation area 24. The power module 43 is electrically connected to the control module 42 through the wiring 431, so that the power module 43 is hidden inside the installation area 24 to avoid it being always exposed to the environment of the septic tank 60 and causing a malfunction.

[0048] Preferably, a control center 45 is further included, and a remote transmission module 44 is wirelessly connected to the control center 45 for transmitting gas concentration data. The remote transmission module 44 is remotely connected to the control center 45 via a GPRS module, and remote wireless communication is achieved via GPRS.

[0049] Preferably, the detection module 41 includes an ammonia nitrogen gas sensor 411 , a hydrogen sulfide gas sensor 412 and a biogas sensor 413 , thereby achieving comprehensive intelligent monitoring of the gas in the septic tank 60 .

[0050] Preferably, Figure 2 As shown, a ring-shaped limit edge 36 is provided on the peripheral side of the sliding seat 31 and on the side close to the protrusion 32, and a limit groove 241 is provided on the side wall of the installation area 24 and along its axial direction for the limit edge 36 to move and limit its range of movement. Therefore, the sliding seat 31 can slide in the opening direction of the installation area 24 through the limit groove 241, so that the movable bracket 30 is limited to slide within a certain range to avoid falling out, thereby realizing stable operation of the monitoring component 40.

[0051] The beneficial effects of the utility model are as follows:

[0052] The utility model not only ensures the safety protection of the sensor, but also improves the sensitivity and accuracy of monitoring by setting a retractable monitoring component 40 under the manhole cover 10 of the septic tank 60. At the same time, the gas concentration in the septic tank 60 can be monitored in real time through the remote transmission module 44, which enhances the intelligence level of the system and improves management efficiency and safety.

[0053] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. Manhole cover monitoring system for septic tanks in smart cities, characterized in that, Including: A manhole cover (10) is provided on the wellhead (61) of an urban septic tank (60) to control the opening and closing of the wellhead (61); A protective frame (20) is detachably arranged on the lower end surface of the manhole cover (10), including a bottom plate (21), an installation enclosure (22) provided at the center of the bottom plate (21), and a plurality of guiding pieces (23) provided on the periphery of the installation enclosure (22). The installation enclosure (22) is in a circular closed shape and forms an installation area (24) with an open bottom in the middle. The guiding pieces (23) gradually decrease in thickness along the radial direction of the installation enclosure (22) towards the edge of the bottom plate (21); A movable bracket (30) includes a sliding seat (31) slidably arranged on the side wall of the installation area (24) along the opening direction of the installation enclosure (22) and a protruding part (32) provided on the side of the sliding seat (31) away from the installation area (24). A working area (33) is formed by inward depression at the bottom of the protruding part (32); A monitoring component (40) is arranged in the working area (33) to monitor the gas concentration in the septic tank (60); An elastic support member (50) is arranged between the bottom of the installation area (24) and the sliding seat (31) to elastically support the sliding seat (31) so that the protruding part (32) remains in a position protruding from the installation area (24) under normal conditions; Wherein, a guiding surface (321) is provided on the periphery of the protruding part (32) so that when it is pressed, it is pressed into the installation area (24).

2. The septic tank manhole cover monitoring system for smart cities according to claim 1 is characterized in that: The guiding surface (321) is an arc surface, and the arc opening direction of the arc surface faces the inside of the installation area (24).

3. The septic tank manhole cover monitoring system for smart cities according to claim 1, characterized in that: A filtering screen (34) for intercepting impurity particles is covered at the opening position of the working area (33).

4. The septic tank manhole cover monitoring system for smart cities according to claim 1, characterized in that: The elastic support member (50) is a return spring. A positioning groove (35) is formed by inward depression at the upper end of the sliding seat (31), and a positioning post (25) is provided at the position corresponding to the positioning groove (35) at the inner bottom of the installation area (24). The two ends of the return spring are respectively inserted into the positioning groove (35) and the periphery of the positioning post (25).

5. The septic tank manhole cover monitoring system for smart cities according to claim 4 is characterized in that: Four return springs are evenly arranged around the circumference of the installation area (24), and four corresponding positioning grooves (35) and positioning posts (25) are provided.

6. The septic tank manhole cover monitoring system for smart cities according to claim 1, characterized in that: The monitoring component (40) includes a detection module (41), a control module (42), a power supply module (43), and a remote transmission module (44) that are electrically connected to each other. The control module (42), the remote transmission module (44), and the detection module (41) are all arranged on the inner bottom of the working area (33). The power supply module (43) is arranged on the inner bottom of the installation area (24) and is electrically connected to the input end of the control module (42) through a wiring (431).

7. The septic tank manhole cover monitoring system for smart cities according to claim 6, characterized in that: The remote transmission module (44) is wirelessly connected to a control center (45) for transmitting gas concentration data.

8. The septic tank manhole cover monitoring system for smart cities according to claim 7, characterized in that: The remote transmission module (44) is remotely connected to the control center (45) through a GPRS module.

9. The septic tank manhole cover monitoring system for smart cities according to claim 6, characterized in that: The detection module (41) includes an ammonia nitrogen gas sensor (411), a hydrogen sulfide gas sensor (412), and a biogas sensor (413).

10. The septic tank manhole cover monitoring system for smart cities according to claim 1, characterized in that: A circumferential side of the sliding seat (31) and on a side close to the protruding portion (32) is provided with an annular limiting edge (36), and a limiting groove (241) for the limiting edge (36) to move and limit its movement range is provided on the side wall of the installation area (24) along its axial direction.

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