Intelligent well lid for water meter well

Abstract

This invention relates to the field of water meter well technology, specifically to a smart water meter well cover, comprising a mounting frame, a well cover frame hinged to the inner surface of the mounting frame, a discharge device mounted on the inner surface of the well cover frame, and a driving device mounted at the lower end of the discharge device. By setting up the discharge device, when water rapidly flows into the discharge device through the discharge hole, the upper discharge hole can be tilted to guide the water flow, causing the water to spirally scour the surface of the first well cover plate, causing the second well cover plate to rotate due to the scouring of the water, thereby adjusting the overlapping area of ​​the upper and lower mesh plates, thus increasing the drainage capacity of the discharge device. This discharge device can automatically adjust its drainage capacity according to the water flow rate, without the need for manual operation by staff. This not only reduces the labor intensity of staff but also reduces road surface flooding and biogas phenomena, thus achieving a self-regulating effect.

Description

Technical Field

[0001] This invention relates to the field of road surface drainage device technology, and in particular to smart manhole covers for water meter wells. Background Technology

[0002] Water meter covers are used to conceal the water metering device under the road surface, preventing people or objects from falling in. Manhole covers can be categorized by material, including metal covers, high-strength fiber cement concrete covers, and resin covers. Currently, most smart water meter covers are equipped with intelligent anti-theft devices that securely lock the cover to the road surface.

[0003] Existing smart water meter covers have a fixed discharge capacity. Sewage accumulation can easily produce odors and cannot be quickly drained into connected sewers. This results in a large amount of water and biogas retention, which can easily lead to flooding and biogas problems. Furthermore, the large amount of water remaining on the smart cover can also attenuate the wireless signal, undoubtedly increasing the difficulty for staff to open the smart cover. This is a problem that needs to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a smart well cover for water meter wells in order to solve the above-mentioned problems, thereby improving the poor drainage effect of existing smart well covers and the problems of flooding and biogas.

[0005] The present invention achieves the above objectives through the following technical solution: a smart manhole cover for water meter wells, including a mounting frame, a manhole cover frame hinged to the inner surface of the mounting frame, a discharge device mounted on the inner surface of the manhole cover frame, a driving device mounted at the lower end of the discharge device, one end of the driving device extending through to the outside of the manhole cover frame, a locking device mounted on the surface of the driving device, one end of the locking device extending through the manhole cover frame and inserted into the mounting frame, and a radar level gauge mounted at the lower end of the manhole cover frame;

[0006] The discharge device includes a first manhole cover and a second manhole cover. The first manhole cover is fixedly connected to the inner surface of the manhole cover frame, and the second manhole cover is rotatably connected to the inner surface of the manhole cover frame. The first manhole cover is positioned above the second manhole cover. An integrally formed mesh plate is embedded in the surface of both the first and second manhole covers. The surface of the mesh plate has evenly distributed discharge holes. The upper mesh plate has the same size as the first manhole cover, and the lower mesh plate has a size ratio of 3:2 with the second manhole cover. The horizontal cross-sectional shape of the mesh plate and the first and second manhole covers is circular. The angle between the second manhole cover and the lower mesh plate and the horizontal plane is 10 degrees. The angle between the upper discharge hole and the horizontal plane is 45 degrees. The spacing between two adjacent discharge holes is the same.

[0007] Preferably, the upper ends of the second manhole cover and the lower mesh plate are provided with guide grooves distributed in a ring, and the guide grooves are arc-shaped.

[0008] Preferably, a filter screen is embedded in the inner surface of the manhole cover frame. The filter screen may be a stainless steel component. The upper ends of the upper mesh plate and the first manhole cover plate are in contact with the filter screen. The mesh diameter of the filter screen is smaller than the diameter of the discharge hole. The upper end of the filter screen is flush with the upper end of the manhole cover frame.

[0009] Preferably, the inner surface of the manhole cover frame is provided with a positioning ring groove, the second manhole cover plate and the lower mesh plate are slidably connected to the inside of the positioning ring groove, the inside of the manhole cover frame is provided with a first limiting groove communicating with the positioning ring groove, the horizontal cross-sectional shape of the first limiting groove is semi-circular, the surface of the lower mesh plate is fixedly connected with a limiting block, one end of the limiting block passes through the positioning ring groove and is slidably connected to the first limiting groove.

[0010] Preferably, the lower ends of the second manhole cover and the lower mesh plate are both embedded with friction-reducing balls arranged in a ring, and the lower surface of the friction-reducing balls is slidably connected to the positioning ring groove.

[0011] Preferably, the driving device includes a water pressure sensor and a waterproof cover. The water pressure sensor is embedded in one side of the inner wall of the upper discharge hole. The waterproof cover is fixedly connected to the inner surface of the manhole cover frame. A PLC controller is fixedly connected to the inner bottom wall of the waterproof cover. A servo motor is fixedly connected to the inner wall of the waterproof cover. A first gear is fixedly connected to the output shaft of the servo motor. One end of the first gear passes through the waterproof cover and the manhole cover frame and extends into the interior of the positioning ring groove. An internal gear ring is meshed with the surface of the first gear and is rotatably connected to the positioning ring groove. One end of the internal gear ring passes through the interior of the first limiting groove. A lever block is fixedly connected to the upper end of the internal gear ring and is slidably connected to the first limiting groove. One side of the inner wall of the first limiting groove and one end of the limiting block are in contact with the lever block.

[0012] Preferably, the PLC controller is internally electrically connected to a wireless transmission module, the wireless transmission module is bidirectionally electrically connected to the PLC controller, the output terminal of the water pressure sensor is electrically connected to the input terminal of the PLC controller, and the input terminal of the servo motor is electrically connected to the output terminal of the PLC controller.

[0013] Preferably, the inner surface of the mounting frame is provided with evenly distributed locking grooves, the inside of the manhole cover frame is provided with a mounting groove communicating with the positioning ring groove, and the surface of the manhole cover frame is provided with evenly distributed storage grooves that are all communicating with the mounting grooves. The locking device includes an outer gear ring rotatably connected to the inside of the mounting groove, the surface of the outer gear ring being meshed with evenly distributed second gears, the second gears being rotatably connected to the inside of the storage grooves, one end of the second gear being fixedly connected with a locking strip, and one end of the locking strip penetrating the storage groove and being inserted into the locking groove.

[0014] Preferably, a driving block is fixedly connected to the surface of the internal gear ring, and a driven block is fixedly connected to the inner surface of the external gear ring. The driving block and the shifting block are arranged on the same straight line. The driving block and the driven block are equidistant from the center of the internal gear ring, and the included angle between the driving block and the driven block is 160 degrees.

[0015] Preferably, the inside of the manhole cover frame is provided with a second limiting groove that communicates with the installation groove, and the lower end of the outer toothed ring is fixedly connected with positioning blocks that are distributed in a ring and are slidably connected to the second limiting groove. A rubber spring is fixedly connected between the positioning block and the second limiting groove.

[0016] The beneficial effects of this invention are:

[0017] (1) By setting up a discharge device, when water flows quickly into the discharge device through the discharge hole, the upper discharge hole can be tilted to guide the water flow, so that the water spirals and washes the surface of the first manhole cover plate, and the second manhole cover plate rotates due to the water washing, so as to adjust the overlapping area of ​​the upper and lower mesh plates, thereby increasing the drainage capacity of the discharge device. The discharge device can adjust the drainage capacity of the discharge device according to the water flow rate, without the need for manual operation by the staff. This not only reduces the labor intensity of the staff, but also reduces the occurrence of floods and biogas on the road surface, thereby achieving the effect of self-regulation.

[0018] (2) The second manhole cover and the lower mesh plate are designed with an inclination and are integrally formed. When the second manhole cover loses external resistance, the second manhole cover is greater than the lower mesh plate. At this time, the second manhole cover can rotate downward under the influence of gravity, so that the second manhole cover can reseal the discharge device to reduce the odor and other harmful gases inside the sewer from escaping to the outside of the sewer, thereby achieving a good self-sealing effect.

[0019] (3) By setting up a filter screen, large-volume impurities in the water can be filtered out, thereby reducing the probability of the discharge hole being blocked. At the same time, since the discharge hole is tilted to guide the water flow, the water above the manhole cover frame can easily form a vortex. The vortex can drive the impurities to rotate, thereby reducing the probability of the filter screen being blocked by impurities.

[0020] (4) By setting up a driving device, when the water adjusts the overlapping area of ​​the upper and lower mesh plates, the water pressure sensor can detect the water pressure through the upper discharge hole in real time and transmit the detection data to the PLC controller. The PLC controller controls the servo motor to rotate in the corresponding direction according to the data. The servo motor drives the limit block to rotate along the first limit groove through the first gear, the internal gear ring and the toggle block, so that the limit block drives the lower mesh plate and the second manhole cover plate to rotate at the same angle, actively adjusting the overlapping area of ​​the upper and lower mesh plates. This can further reduce the probability of water stagnating on the road surface, thereby achieving a good self-adjustment effect.

[0021] (5) By setting a locking device, when the locking strip is inserted into the locking groove, the locking groove can lock the manhole cover frame firmly inside the mounting frame seat through the locking strip, thereby reducing the probability of the manhole cover being stolen and achieving a good anti-theft effect. At the same time, when the inner gear ring adjusts the overlapping area of ​​the upper and lower mesh plates through the lever, the inner gear ring can drive the passive block to rotate through the active block. The passive block moves all the locking strips to the outside of the locking groove through the outer gear ring and the second gear. When the limit block is pressed against the inner wall of the first limit groove, the locking strip is completely disengaged from the locking groove. At this time, the manhole cover frame and the mounting frame seat lose their lock. When the staff needs to open the manhole cover frame for maintenance or emergency drainage, the staff can manually open the manhole cover frame without worrying about the water affecting the wireless signal, thereby achieving a good adjustment effect.

[0022] (6) By setting up a wireless transmission module, when the staff needs to access the locking device, the staff only needs to use an external device with a wireless transmission module to match and connect with the wireless transmission module inside the PLC controller. After the two wireless transmission modules are matched and connected, the staff can transmit the corresponding instructions to the PLC controller through the wireless transmission module. The PLC controller then controls the servo motor to unlock the locking device, thereby reducing the probability of the locking device being removed from the outside and further improving the overall anti-theft performance of the manhole cover. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram showing the connection between the second manhole cover and the mesh plate in this invention;

[0027] Figure 5 This is a schematic diagram showing the connection between the locking bar and the positioning groove in this invention;

[0028] Figure 6This is a schematic diagram of the arrangement of the locking strips in this invention;

[0029] Figure 7 This is a schematic diagram showing the arrangement of the driving wheel and the driven wheel in this invention;

[0030] Figure 8 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 9 for Figure 6 Enlarged view of point B in the middle;

[0032] Figure 10 This is a system flowchart of the present invention.

[0033] In the diagram: 1. Mounting frame; 101. Locking groove; 2. Manhole cover frame; 201. Filter screen; 202. Positioning ring groove; 203. First limiting groove; 204. Mounting groove; 205. Storage groove; 206. Second limiting groove; 3. Discharge device; 301. First manhole cover plate; 302. Second manhole cover plate; 303. Mesh plate; 304. Discharge hole; 305. Guide groove; 306. Limiting block; 307. Drag-reducing ball bearing; 4. Drive Device; 401, water pressure sensor; 402, waterproof cover; 403, PLC controller; 404, servo motor; 405, first gear; 406, internal gear ring; 407, toggle block; 408, wireless transmission module; 5, locking device; 501, external gear ring; 502, second gear; 503, locking bar; 504, positioning block; 505, rubber spring; 506, active block; 507, passive block; 6, radar level gauge. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In practical implementation: such as Figure 1-10As shown, the smart manhole cover for water meter wells includes a mounting frame 1, a manhole cover frame 2 hinged to the inner surface of the mounting frame 1, a discharge device 3 installed on the inner surface of the manhole cover frame 2, a driving device 4 installed at the lower end of the discharge device 3, one end of the driving device 4 extending through to the outside of the manhole cover frame 2, a locking device 5 installed on the surface of the driving device 4, one end of the locking device 5 extending through the manhole cover frame 2 and inserted into the mounting frame 1, and a radar level gauge 6 installed at the lower end of the manhole cover frame 2.The radar level gauge 6 is a manhole cover that can measure changes in material level, including changes in horizontal displacement, verticality, and tilt, as well as changes in soil moisture, humidity, and liquid level in water meter wells. The discharge device 3 includes a first manhole cover plate 301 and a second manhole cover plate 302. The first manhole cover plate 301 is fixedly connected to the inner surface of the manhole cover frame 2, and the second manhole cover plate 302 is rotatably connected to the inner surface of the manhole cover frame 2. The first manhole cover plate 301 is positioned above the second manhole cover plate 302. An integrally formed mesh plate 303 is embedded in the surfaces of both the first and second manhole cover plates 301 and 302. The surface of the mesh plate 303 has evenly distributed discharge holes 304. The upper mesh plate 303 is connected to the first manhole cover plate. The dimensions of the lower mesh plate 303 and the second manhole cover 302 are the same. The size ratio of the lower mesh plate 303 to the second manhole cover 302 is 3:2. The horizontal cross-sectional shape of the mesh plate 303 and the first manhole cover 301, and the mesh plate 303 and the second manhole cover 302 are all circular. The angle between the second manhole cover 302 and the lower mesh plate 303 and the horizontal plane is 10 degrees. The angle between the upper discharge hole 304 and the horizontal plane is 45 degrees. The spacing between two adjacent discharge holes 304 is the same. The second manhole cover 302 is fixedly connected to the lower surface of the lower mesh plate 303. The second manhole cover 302 and the upper mesh plate 303 have no pressure contact. The horizontal cross-sectional shape of the mesh plate 303 and the first manhole cover 301, and the mesh plate 303 and the second manhole cover 302 are all circular. The second manhole cover 302 and the lower mesh plate 303 are all circular. The angle between plate 303 and the horizontal plane is 10 degrees, and the angle between the upper discharge hole 304 and the horizontal plane is 45 degrees. The spacing between two adjacent discharge holes 304 is the same. The second manhole cover plate 302 is fixedly connected to the lower surface of the lower mesh plate 303. The second manhole cover plate 302 and the upper mesh plate 303 have no pressure contact. The weight of the second manhole cover plate 302 is greater than that of the lower mesh plate 303. When water flows rapidly into the discharge device 3 through the discharge hole 304, the upper discharge hole 304 can be tilted to guide the water flow, so that the water spirally washes the surface of the first manhole cover plate 301, causing the second manhole cover plate 302 to rotate due to the water washing, thereby adjusting the overlapping area of ​​the upper and lower mesh plates 303, thereby increasing the drainage capacity of the discharge device 3. The discharge device 3 can automatically adjust the drainage volume of the discharge device 3 according to the water flow, without the need for manual operation by the staff. This not only reduces the labor intensity of the staff, but also reduces the occurrence of flooding and biogas on the road surface, thereby achieving a self-regulating effect. The second manhole cover plate 302 and the lower mesh plate 303 are designed with an inclination and are integrally formed. When the second manhole cover plate 302 loses external resistance, because the weight of the second manhole cover plate 302 is greater than that of the lower mesh plate 303, the second manhole cover plate 302 can rotate downward under the influence of gravity, so that the second manhole cover plate 302 can reseal the discharge device 3, thereby reducing the odor and other harmful gases inside the sewer from escaping to the outside of the sewer, thereby achieving a good self-sealing effect.Both the upper ends of the second manhole cover plate 302 and the lower mesh plate 303 are provided with annularly distributed guide grooves 305. The guide grooves 305 are arc-shaped and can increase the contact area between water and the second manhole cover plate 302, thereby increasing the resistance of water scouring the second manhole cover plate 302 and reducing the difficulty of rotating the second manhole cover plate 302. A filter screen 201 is embedded in the inner surface of the manhole cover frame 2. The filter screen 201 can be a stainless steel component. The upper ends of the upper mesh plate 303 and the first manhole cover plate 301 are connected to the filter screen 201. 1. Contact: The mesh diameter of the filter screen 201 is smaller than the diameter of the discharge hole 304. The upper end of the filter screen 201 is flush with the upper end of the manhole cover frame 2. The filter screen 201 can filter out large-volume impurities in the water, reducing the probability of the discharge hole 304 being blocked. At the same time, because the discharge hole 304 is tilted to guide the water flow, the water above the manhole cover frame 2 can easily form a vortex. The vortex can drive the impurities to rotate, further reducing the probability of the filter screen 201 being blocked by impurities. A positioning ring groove 202 is provided on the inner surface of the manhole cover frame 2, and the second manhole cover plate 30... Both the second manhole cover 302 and the lower mesh plate 303 are slidably connected to the inside of the positioning ring groove 202. The inside of the manhole cover frame 2 is provided with a first limiting groove 203 that communicates with the positioning ring groove 202. The horizontal cross-sectional shape of the first limiting groove 203 is semi-circular. A limiting block 306 is fixedly connected to the surface of the lower mesh plate 303. One end of the limiting block 306 passes through the positioning ring groove 202 and is slidably connected to the first limiting groove 203. The first limiting groove 203 can limit the rotation range of the second manhole cover 302 and the lower mesh plate 303 through the limiting block 306. This design stabilizes the water flow, achieving a better containment effect. Both the lower ends of the second manhole cover 302 and the lower mesh plate 303 are embedded with annularly distributed drag-reducing balls 307. The lower surface of the drag-reducing balls 307 is slidably connected to the positioning ring groove 202. The drag-reducing balls 307 reduce the resistance during rotation of the second manhole cover 302 and the lower mesh plate 303, making their rotation smoother and reducing the difficulty of rotating and resetting them.

[0036] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10As shown, the drive device 4 includes a water pressure sensor 401 and a waterproof cover 402. The water pressure sensor 401 is embedded in one side of the inner wall of the upper discharge hole 304. The waterproof cover 402 is fixedly connected to the inner surface of the manhole cover frame 2. A PLC controller 403 is fixedly connected to the inner bottom wall of the waterproof cover 402. A servo motor 404 is fixedly connected to the inner wall of the waterproof cover 402. A first gear 405 is fixedly connected to the output shaft of the servo motor 404. One end of the first gear 405 passes through the waterproof cover 402 and the manhole cover frame 2 and extends into the interior of the positioning ring groove 202. The surface of the first gear 405 is meshed with a rotating connection to the positioning ring groove 202. An internal gear ring 406 is connected, with one end of the internal gear ring 406 penetrating into the interior of the first limiting groove 203. A lever block 407, which is slidably connected to the first limiting groove 203, is fixedly connected to the upper end of the internal gear ring 406. One side of the inner wall of the first limiting groove 203 and one end of the limiting block 306 are in contact with the lever block 407. When the overlapping area of ​​the upper and lower mesh plates 303 is adjusted by water, the water pressure sensor 401 can detect the water pressure through the upper discharge hole 304 in real time and transmit the detection data to the PLC controller 403. The PLC controller 403 controls the servo motor 404 to rotate in the corresponding direction based on the data. The servo motor 404 rotates through the first gear ring 406. Wheel 405, internal gear ring 406, and lever 407 drive limit block 306 to rotate along the first limit groove 203, causing limit block 306 to simultaneously drive the lower mesh plate 303 and the second manhole cover plate 302 to rotate by a corresponding angle, actively adjusting the overlapping area of ​​the upper and lower mesh plates 303. This further reduces the probability of water remaining on the road surface, thus achieving a good self-adjusting effect. The PLC controller 403 is internally electrically connected to a wireless transmission module 408, which is bidirectionally electrically connected to the PLC controller 403. The output terminal of the water pressure sensor 401 is electrically connected to the input terminal of the PLC controller 403. The input terminal of the servo motor 404 is electrically connected to the output terminal of the PLC controller 403. When the operator needs to access the locking device 5, the operator only needs to use an external device with a wireless transmission module 408 to match and connect with the wireless transmission module 408 inside the PLC controller 403. After the two wireless transmission modules 408 are matched and connected, the operator can transmit the corresponding command to the PLC controller 403 through the wireless transmission module 408. The PLC controller 403 then controls the servo motor 404 to unlock the locking device 5, thereby reducing the probability of the locking device 5 being removed from the outside and improving the overall anti-theft performance of the manhole cover.

[0037] like Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the inner surface of the mounting frame 1 is provided with evenly distributed locking grooves 101, the inside of the manhole cover frame 2 is provided with a mounting groove 204 communicating with the positioning ring groove 202, and the surface of the manhole cover frame 2 is provided with evenly distributed storage grooves 205 communicating with the mounting grooves 204. The locking device 5 includes an outer gear ring 501 rotatably connected to the inside of the mounting groove 204, and an evenly distributed second gear 502 meshing with the surface of the outer gear ring 501. The second gear 502 is rotatably connected to the inside of the storage groove 205, and a locking strip 503 is fixedly connected to one end of the second gear 502. One end of the locking strip 503 passes through the storage groove 205 and is inserted into the locking groove 101. When the locking strip 503 is engaged with the locking groove 101, the locking device 5 locks the manhole cover frame 2. 1. During insertion, the locking groove 101 can firmly lock the manhole cover frame 2 inside the mounting frame 1 through the locking strip 503, thereby reducing the probability of the manhole cover being stolen and achieving a good anti-theft effect; the surface of the inner gear ring 406 is fixedly connected to the active block 506, and the inner surface of the outer gear ring 501 is fixedly connected to the passive block 507. The active block 506 and the push block 407 are set on the same straight line, and the distance from the active block 506 and the passive block 507 to the center of the inner gear ring 406 is the same. The included angle between the active block 506 and the passive block 507 is 160 degrees. When the inner gear ring 406 adjusts the overlapping area of ​​the upper and lower mesh plates 303 through the push block 407, the inner gear ring 406 can be adjusted by the active block 506. The passive block 507 rotates, and through the external gear ring 501 and the second gear 502, all the locking bars 503 move outward from the locking groove 101. When the limiting block 306 is pressed against the inner wall of the first limiting groove 203, the locking bars 503 are completely disengaged from the locking groove 101. At this time, the manhole cover frame 2 and the mounting frame 1 are no longer locked. When the staff needs to open the manhole cover frame 2 for maintenance or emergency drainage, the staff can manually open the manhole cover frame 2 without worrying about the water affecting the wireless signal, thus achieving a good adjustment effect. The inside of the manhole cover frame 2 is provided with a second limiting groove 206 that communicates with the mounting groove 204. The lower end of the external gear ring 501 is fixedly connected to... There are positioning blocks 504 arranged in a ring and slidably connected to the second limiting groove 206. A rubber spring 505 is fixedly connected between the positioning block 504 and the second limiting groove 206. When the active block 506 drives the passive block 507 to rotate, the passive block 507 can squeeze the rubber spring 505 through the outer gear ring 501 and the positioning block 504. When the active block 506 reduces the pressure on the passive block 507, the pressure on the rubber spring 505 decreases. The rubber spring 505 can then drive the locking strip 503 to rotate through the positioning block 504, the outer gear ring 501, and the second gear 502, so that the locking strip 503 can be effectively inserted into the locking groove 101, thereby achieving a good self-resetting effect.

[0038] When the present invention is in use, when water flows into the sewer through the discharge hole 304 on the surface of the upper mesh plate 303, the discharge hole 304 guides the water to the surface of the second manhole cover plate 302 at an angle. At this time, the water washes the guide groove 305 on the surface of the second manhole cover plate 302, causing the second manhole cover plate 302 to rotate due to the scouring of the water. The second manhole cover plate 302 can then drive the lower mesh plate 303 to move below the upper mesh plate 303. The discharge holes 304 on the surfaces of the upper and lower mesh plates 303 are connected, and the water flows quickly into the sewer through the lower discharge hole 304. As the scouring force of the water on the second manhole cover plate 302 increases, the overlapping area of ​​the upper and lower mesh plates 303 will increase. This can automatically adjust the drainage volume of the discharge device 3 according to the water flow rate, without the need for manual operation by the staff, thereby achieving a good self-adjusting effect.

[0039] When the overlapping area of ​​the upper and lower mesh plates 303 is adjusted by water, the water pressure sensor 401 can detect the water pressure through the upper discharge hole 304 in real time. The water pressure sensor 401 converts the pressure signal into an electrical signal, and then transmits the electrical signal to the PLC controller 403. The PLC controller 403 compares the electrical signal transmitted from the water pressure sensor 401 with the data preset inside the PLC controller 403 by the operator. Then, the PLC controller 403 accepts the corresponding instruction preset inside it according to the corresponding data. The servo motor 404 is controlled to rotate in the corresponding direction. The servo motor 404 drives the first gear 405 to rotate, the first gear 405 drives the internal gear ring 406 to rotate, the internal gear ring 406 drives the lever 407 to rotate, and the lever 407 drives the limit block 306 to rotate along the first limit groove 203. This causes the limit block 306 to simultaneously drive the lower mesh plate 303 and the second manhole cover plate 302 to rotate by the corresponding angle, actively adjusting the overlapping area of ​​the upper and lower mesh plates 303. This can effectively reduce the probability of water remaining on the road surface, thereby achieving a good self-adjusting effect.

[0040] When the inner gear ring 406 adjusts the overlapping area of ​​the upper and lower mesh plates 303 through the lever 407, the inner gear ring 406 can also drive the active block 506 to rotate. When the active block 506 contacts the passive block 507, the active block 506 drives the passive block 507 to rotate, the passive block 507 drives the outer gear ring 501 to rotate, the outer gear ring 501 drives the second gear 502 to rotate, and the second gear 502 drives the locking strip 503 to move to the outside of the locking groove 101. When the limit block 306 is pressed against the inner wall of the first limit groove 203, the locking strip 503 is completely disengaged from the locking groove 101. At this time, the manhole cover frame 2 and the mounting frame 1 are no longer locked. When the staff needs to open the manhole cover frame 2 for maintenance or emergency drainage, the staff can manually open the manhole cover frame 2 without worrying about the water affecting the wireless signal, thus achieving a good adjustment effect.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent water meter well lid, comprising a mounting frame seat (1), characterized in that: The inner surface of the mounting frame (1) is hinged with a manhole cover frame (2), and the inner surface of the manhole cover frame (2) is equipped with a discharge device (3). The lower end of the discharge device (3) is equipped with a drive device (4). One end of the drive device (4) extends through to the outside of the manhole cover frame (2). The surface of the drive device (4) is equipped with a locking device (5). One end of the locking device (5) extends through the manhole cover frame (2) and is inserted into the mounting frame (1). The lower end of the manhole cover frame (2) is equipped with a radar level gauge (6). The discharge device (3) includes a first manhole cover plate (301) and a second manhole cover plate (302). The first manhole cover plate (301) is fixedly connected to the inner surface of the manhole cover frame (2), and the second manhole cover plate (302) is rotatably connected to the inner surface of the manhole cover frame (2). The first manhole cover plate (301) is positioned above the second manhole cover plate (302). An integrally formed mesh plate (303) is embedded in the surface of both the first manhole cover plate (301) and the second manhole cover plate (302). The surface of the mesh plate (303) is provided with uniformly distributed discharge holes (304). The upper mesh plate (303) has the same size as the first manhole cover plate (301), and the lower mesh plate (304) has the same size as the first manhole cover plate (301). The size ratio of the mesh plate (303) to the second manhole cover plate (302) is 3:

2. The horizontal cross-sectional shape of the mesh plate (303) and the first manhole cover plate (301) and the mesh plate (303) and the second manhole cover plate (302) are all circular. The angle between the second manhole cover plate (302) and the mesh plate (303) below and the horizontal plane is 10 degrees. The angle between the upper discharge hole (304) and the horizontal plane is 45 degrees. The spacing between two adjacent discharge holes (304) is the same. The second manhole cover plate (302) is fixedly connected to the lower surface of the mesh plate (303) below. The second manhole cover plate (302) and the mesh plate (303) above have no pressure contact.

2. The water meter well intelligent well lid of claim 1, wherein: The upper ends of the second manhole cover plate (302) and the mesh plate (303) below are provided with guide grooves (305) distributed in a ring shape, and the guide grooves (305) are arc-shaped.

3. The water meter well intelligent access cover of claim 1, wherein: A filter screen (201) is embedded in the inner surface of the manhole cover frame (2). The filter screen (201) is a stainless steel component. The upper ends of the upper mesh plate (303) and the first manhole cover plate (301) are in contact with the filter screen (201). The mesh diameter of the filter screen (201) is smaller than the diameter of the discharge hole (304). The upper end of the filter screen (201) is flush with the upper end of the manhole cover frame (2).

4. The water meter well intelligent access cover of claim 1, wherein: The inner surface of the manhole cover frame (2) is provided with a positioning ring groove (202). The second manhole cover plate (302) and the lower mesh plate (303) are slidably connected to the inside of the positioning ring groove (202). The inside of the manhole cover frame (2) is provided with a first limiting groove (203) that communicates with the positioning ring groove (202). The horizontal cross-sectional shape of the first limiting groove (203) is semi-circular. The surface of the lower mesh plate (303) is fixedly connected with a limiting block (306). One end of the limiting block (306) passes through the positioning ring groove (202) and is slidably connected to the first limiting groove (203).

5. The water meter well intelligent well lid of claim 4, wherein: The lower ends of the second manhole cover (302) and the mesh plate (303) below are both embedded with friction-reducing balls (307) arranged in a ring. The lower surface of the friction-reducing balls (307) is slidably connected to the positioning ring groove (202).

6. The intelligent manhole cover for water meter wells according to claim 4, characterized in that: The driving device (4) includes a water pressure sensor (401) and a waterproof cover (402). The water pressure sensor (401) is embedded in one side of the inner wall of the upper discharge hole (304). The waterproof cover (402) is fixedly connected to the inner surface of the manhole cover frame (2). A PLC controller (403) is fixedly connected to the inner bottom wall of the waterproof cover (402). A servo motor (404) is fixedly connected to the inner wall of the waterproof cover (402). A first gear (405) is fixedly connected to the output shaft of the servo motor (404). One end of the gear (405) passes through the waterproof cover (402) and the manhole cover frame (2) and extends into the interior of the positioning ring groove (202). The surface of the first gear (405) is meshed with an internal gear ring (406) that is rotatably connected to the positioning ring groove (202). One end of the internal gear ring (406) passes through the interior of the first limiting groove (203). The upper end of the internal gear ring (406) is fixedly connected with a lever block (407) that is slidably connected to the first limiting groove (203). One side of the inner wall of the first limiting groove (203) and one end of the limiting block (306) are in contact with the lever block (407).

7. The intelligent manhole cover for water meters according to claim 6, characterized in that: The PLC controller (403) is internally electrically connected to a wireless transmission module (408), which is bidirectionally electrically connected to the PLC controller (403). The output terminal of the water pressure sensor (401) is electrically connected to the input terminal of the PLC controller (403), and the input terminal of the servo motor (404) is electrically connected to the output terminal of the PLC controller (403).

8. The intelligent manhole cover for water meter wells according to claim 6, characterized in that: The inner surface of the mounting frame (1) is provided with evenly distributed locking grooves (101), the inside of the manhole cover frame (2) is provided with an installation groove (204) communicating with the positioning ring groove (202), the surface of the manhole cover frame (2) is provided with evenly distributed storage grooves (205) communicating with the installation grooves (204), the locking device (5) includes an outer gear ring (501) rotatably connected to the inside of the installation groove (204), the surface of the outer gear ring (501) is meshed with evenly distributed second gears (502), the second gears (502) are rotatably connected to the inside of the storage grooves (205), one end of the second gear (502) is fixedly connected with a locking strip (503), one end of the locking strip (503) passes through the storage groove (205) and is inserted into the locking groove (101).

9. The intelligent manhole cover for water meter wells according to claim 8, characterized in that: An active block (506) is fixedly connected to the surface of the internal gear ring (406), and a passive block (507) is fixedly connected to the inner surface of the external gear ring (501). The active block (506) and the push block (407) are arranged on the same straight line. The distances from the active block (506) and the passive block (507) to the center of the internal gear ring (406) are the same. The included angle between the active block (506) and the passive block (507) is 160 degrees.

10. The intelligent manhole cover for water meter wells according to claim 8, characterized in that: The well cover frame (2) has a second limiting groove (206) that communicates with the installation groove (204) inside. The lower end of the outer toothed ring (501) is fixedly connected to a positioning block (504) that is distributed in a ring and is slidably connected to the second limiting groove (206). A rubber spring (505) is fixedly connected between the positioning block (504) and the second limiting groove (206).

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