A manhole cover with filter function for municipal road drainage

Abstract

This utility model relates to the technical field of municipal road drainage manhole covers, specifically a manhole cover with a filtering function for municipal road drainage. It includes a manhole base, a sleeve fixed to the base, a manhole cover rotatably inside the sleeve, several pads fixed inside the sleeve, and a filtering mechanism engaged within each pad. The filtering mechanism includes a filter cartridge and a liner. The liner is engaged with the pads, a retaining ring is fixed to the bottom end of the liner, and the filter cartridge is threadedly connected to the retaining ring. A fixing block is fixed to the bottom end of the liner, a support seat is installed inside the fixing block, and a pull ring is rotatably connected to the support seat. A sealing cap is threaded onto the liner. The filter cartridge is threaded into the retaining ring, communicating with the liner fixed to the retaining ring. When the liner is engaged with the pads fixed inside the sleeve, the liner can be limited, thereby filtering the water flowing from the manhole cover into the sleeve, thus removing impurities or leaves from the water.

Description

Technical Field

[0001] This utility model relates to a manhole cover, specifically a manhole cover with a filter function for municipal road drainage, belonging to the technical field of municipal road drainage manhole covers. Background Technology

[0002] Municipal roads are engineering facilities designed for the passage of various vehicles (including trackless vehicles) and pedestrians. Drainage manhole covers are commonly used on municipal roads to seal the drainage channels. These covers are an important component of urban infrastructure, primarily used to cover the inlets of inspection wells in drainage systems, ensuring road safety and drainage functionality.

[0003] However, when rainwater is drained into the sewer through manhole covers, because the manhole covers usually cover the top of the sewer, leaves, garbage and other debris can enter the sewer directly through the gap between the manhole cover and the manhole seat. Over time, this accumulation can cause blockages in the sewer, leading to poor drainage and making it easy for water to accumulate on the road or even cause flooding during rainy days. Utility Model Content

[0004] The purpose of this utility model is to provide a manhole cover with a filtering function for municipal road drainage in order to solve the above problems. The filter cylinder is threaded into the retaining ring, so that it is connected to the liner fixed on the retaining ring. When the liner is snapped into the pad fixed inside the sleeve, the liner can be limited, and the water flowing from the manhole cover into the sleeve can be filtered, thereby removing impurities or leaves contained in the water.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a manhole cover with a filtering function for municipal road drainage, comprising a manhole base, a sleeve fixedly connected to the top of the manhole base, a manhole cover rotatably installed inside the sleeve, a plurality of pads fixedly connected in an annular shape at equal intervals on the inner wall of the sleeve, a filtering mechanism being engaged and installed inside the pads, the filtering mechanism comprising a filter cylinder and a liner, the liner being engaged and installed on the pads, a retaining ring fixedly connected to the bottom end of the liner, a filter cylinder being threadedly connected to the retaining ring, a fixing block fixedly connected to the bottom end of the liner, a support seat fixedly installed inside the fixing block, a pull ring rotatably connected to the support seat, and a sealing cap threadedly installed inside the liner.

[0006] Preferably, the liner and the sleeve are engaged, and the liner is in communication with the interior of the filter cartridge, and the bottom end of the filter cartridge is provided with an inclined structure.

[0007] Preferably, the liner has a plurality of drainage grooves arranged in a ring at equal intervals, and the drainage grooves are arranged in an arc surface structure.

[0008] Preferably, the liner is in communication with the interior of the fixing block, and the top of the sealing cover is polygonal in shape.

[0009] Preferably, a support shaft is rotatably mounted on the sleeve, and the support shaft is fixedly connected to the manhole cover.

[0010] Preferably, a bracket is fixedly connected inside the manhole cover, and the bracket is in contact with the top of the liner.

[0011] Preferably, the filter mechanism further includes slots, and the bottom end of the liner is provided with a plurality of slots in a ring shape at equal intervals, and a pad is engaged and installed in the slot.

[0012] Preferably, the slot is configured with an arc surface structure, and the part where the pad and the liner engage is also configured with an arc surface structure.

[0013] The beneficial effects of this utility model are as follows: The filter cartridge is threaded into the retaining ring. Since the retaining ring is fixed to the bottom end of the liner, the filter cartridge can be connected to the interior of the liner after installation. The manhole cover is opened by rotating a tool, allowing it to rotate within the sleeve fixed in the manhole seat. The manhole cover is rotated open, leaving the sleeve in an open state. Several pads are fixedly connected in a ring-shaped pattern at equal intervals on the inner wall of the sleeve. When installing the liner, the liner is placed into the sleeve using a pull ring, causing the liner and pads to engage and be installed together, thus supporting the liner. When drainage is difficult, the manhole cover is opened, allowing rainwater to flow through the liner into the interior of the filter cartridge. Due to the inclined structure at the bottom of the filter cartridge, impurities or leaves in the water can be filtered into the cartridge. When the liner needs to be disassembled, the sealing cover is rotated open, opening the interior of the fixing block. A support seat is installed on the fixing block. Rotating the pull ring installed inside the support seat allows the liner to be removed from the sleeve, enabling the removal and cleaning of impurities on the liner or the filter cartridge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the well base and the sleeve of this utility model;

[0016] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0017] Figure 4 This is a schematic diagram of the connection structure between the sleeve and the pad of this utility model;

[0018] Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of section B.

[0019] Figure 6 This is a schematic diagram of the connection structure between the liner and the present invention;

[0020] Figure 7 for Figure 6 The diagram shows an enlarged view of section C.

[0021] In the diagram: 1. Well base; 2. Sleeve; 3. Support shaft; 4. Well cover; 5. Filtration mechanism; 501. Filter cylinder; 502. Liner; 503. Sealing cover; 504. Fixing block; 505. Support base; 506. Pull ring; 507. Slot; 508. Snap ring; 6. Bracket; 7. Drainage channel; 8. Pad block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-7 As shown, a manhole cover with a filtering function for municipal road drainage includes a manhole base 1. A sleeve 2 is fixedly connected to the top of the manhole base 1. A manhole cover 4 is rotatably installed inside the sleeve 2. Several pads 8 are fixedly connected in an annular shape at equal intervals on the inner wall of the sleeve 2. A filtering mechanism 5 is engaged and installed inside the pads 8. The filtering mechanism 5 includes a filter cylinder 501 and a liner 502. The liner 502 is engaged and installed on the pads 8. The liner 502 is engaged and connected to the sleeve 2. A retaining ring 508 is fixedly connected to the bottom end of the liner 502. The filter cylinder 501 is threadedly connected to the retaining ring 508. The bottom end of the filter cylinder 501 is set with a beveled structure. The filter cylinder 501 is threaded into the inside of the retaining ring 508. 08 is fixed to the bottom end of the liner 502. After the filter cartridge 501 is installed, the liner 502 and the filter cartridge 501 can be connected internally. The bottom end of the liner 502 is fixedly connected to the fixing block 504. The liner 502 and the fixing block 504 are connected internally. The fixing block 504 is fixedly installed with a support seat 505. The support seat 505 is rotatably connected with a pull ring 506. The liner 502 is threaded with a sealing cover 503. The top of the sealing cover 503 is polygonal. Rotate to open the sealing cover 503 and rotate the pull ring 506 installed in the support seat 505 to remove the liner 502 from the sleeve 2. Then, the debris on the liner 502 or the filter cartridge 501 can be disassembled and cleaned.

[0024] As a technical optimization of this utility model, the liner 502 is provided with a plurality of drainage channels 7 in an annular shape at equal intervals. The drainage channels 7 are arranged with an arc surface structure. Rainwater flows into the filter cartridge 501 through the drainage channels 7. Since the drainage channels 7 are arranged with an arc surface structure, the rainwater can be diverted and flow into the filter cartridge 501.

[0025] As a technical optimization of this utility model, a support shaft 3 is rotatably installed on the sleeve 2. The support shaft 3 is fixedly connected to the well cover 4. The well cover 4 is opened by rotating a tool, so that the well cover 4 drives the support shaft 3 to rotate in the sleeve 2.

[0026] As a technical optimization of this utility model, a bracket 6 is fixedly connected inside the manhole cover 4. The bracket 6 contacts the top of the liner 502. The contact between the bracket 6 and the top of the liner 502 allows the liner 502 to support the weight of the manhole cover 4, which is beneficial to improving the load-bearing capacity of the manhole cover 4.

[0027] As a technical optimization of this utility model, the filter mechanism 5 further includes a slot 507. The bottom end of the liner 502 is provided with a plurality of slots 507 in an annular shape at equal intervals. The slots 507 are arranged with an arc surface structure. A pad 8 is engaged and installed in the slot 507. The part of the pad 8 that engages with the liner 502 is also arranged with an arc surface structure. The pad 8 limits the liner 502, so that the pad 8 can support the liner 502, thereby allowing the liner 502 to be installed inside the sleeve 2.

[0028] In use, the filter cartridge 501 is first threaded into the snap ring 508. Since the snap ring 508 is fixed to the bottom of the liner 502, the filter cartridge 501 can be connected to the interior of the liner 502 after installation. The manhole cover 4 is then opened by rotating a tool, causing the manhole cover 4 to rotate within the sleeve 2 fixed inside the manhole seat 1, opening the sleeve 2. Several pads 8 are fixedly connected in an annular shape on the inner wall of the sleeve 2. When installing the liner 502, the liner 502 is engaged with the pads 8, thus supporting the liner 502 and allowing it to be engaged within the sleeve 2. When drainage is difficult, the manhole cover 4 is opened, allowing rainwater to flow through the drainage channel 7 within the liner 502 into the filter cartridge 501. Because the drainage channel 7 has an arc-shaped structure, it provides good drainage for the filter cartridge 501. After rainwater is diverted, it flows into the filter cartridge 501. The bottom of the filter cartridge 501 is designed with a slope, which filters out impurities or leaves in the water. When the liner 502 needs to be removed, the sealing cover 503 is rotated open, which opens the fixing block 504. The fixing block 504 is equipped with a support base 505. By rotating the pull ring 506 installed in the support base 505, the liner 502 can be removed from the sleeve 2, allowing the impurities on the liner 502 or the filter cartridge 501 to be disassembled and cleaned. Using tools, the manhole cover 4 is re-engaged and installed on the sleeve 2, thus sealing the sleeve 2. At the same time, the bracket 6 fixed at the bottom of the manhole cover 4 can also contact the top of the liner 502, allowing the liner 502 to support the weight of the manhole cover 4, which helps to improve the load-bearing capacity of the manhole cover 4.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] 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. A manhole cover with a filtering function for municipal road drainage, comprising a manhole base (1), characterized in that: A sleeve (2) is fixedly connected to the top of the well base (1). A well cover (4) is rotatably installed inside the sleeve (2). Several pads (8) are fixedly connected in a ring shape at equal intervals on the inner wall of the sleeve (2). A filter mechanism (5) is engaged and installed inside the pads (8). The filter mechanism (5) includes a filter cylinder (501) and a liner (502). The liner (502) is engaged and installed on the pads (8). A retaining ring (508) is fixedly connected to the bottom end of the liner (502). The filter cylinder (501) is threadedly connected to the retaining ring (508). A fixing block (504) is fixedly connected to the bottom end of the liner (502). A support seat (505) is fixedly installed inside the fixing block (504). A pull ring (506) is rotatably connected to the support seat (505). A sealing cap (503) is threadedly installed inside the liner (502).

2. The well cover with filtering function for municipal road drainage according to claim 1, characterized in that: The liner (502) is engaged with the sleeve (2), and the liner (502) is connected to the interior of the filter cartridge (501). The bottom end of the filter cartridge (501) is set with a sloping structure.

3. The well cover with filtering function for municipal road drainage according to claim 1, characterized in that: The liner (502) has several drainage grooves (7) arranged in a ring at equal intervals, and the drainage grooves (7) are arranged in an arc-shaped structure.

4. The well cover with filtering function for municipal road drainage according to claim 1, characterized in that: The liner (502) is internally connected to the fixing block (504), and the top of the sealing cover (503) is polygonal in shape.

5. The well cover with filtering function for municipal road drainage according to claim 1, characterized in that: A support shaft (3) is rotatably mounted on the sleeve (2), and the support shaft (3) is fixedly connected to the well cover (4).

6. A manhole cover with a filter function for municipal road drainage according to claim 1, characterized in that: The manhole cover (4) is fixedly connected to a bracket (6), which is in contact with the top of the liner (502).

7. The well cover with filtering function for municipal road drainage according to claim 1, characterized in that: The filter mechanism (5) also includes slots (507). The bottom end of the liner (502) is provided with a number of slots (507) in an annular shape at equal intervals. A pad (8) is installed in the slot (507).

8. The well cover with filtering function for municipal road drainage according to claim 7, characterized in that: The slot (507) is designed with an arc surface, and the part where the pad (8) engages with the liner (502) is also designed with an arc surface.

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