Anti-blocking well lid
By designing an anti-clogging manhole cover, the nested structure of movable and fixed rings and the drive mechanism to switch the size of the drainage outlet solve the problem of manhole cover clogging during rainstorms, achieving efficient drainage and pedestrian safety under different weather conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 河北工业职业技术大学
- Filing Date
- 2026-04-07
- Publication Date
- 2026-05-12
AI Technical Summary
The drainage outlets of existing manhole covers are prone to blockage during heavy rain, affecting the drainage capacity of the drainage system.
An anti-clogging manhole cover was designed. Through the nested structure of a fixed cover, a movable ring, and a fixed ring, and in conjunction with a drive mechanism, the movable ring can rotate between an initial angle and a preset angle, thereby switching the size of the first and second drain outlets. Combined with the shell and filter screen structure, the stability of the drainage channel and the monitoring of debris are achieved, thus preventing blockage.
In light rain, the size of the drain outlet is reduced to prevent pedestrians from tripping, while in heavy rain, the size of the drain outlet is increased to reduce the risk of blockage. The stability and cleanliness of the drainage channel are ensured through light signal monitoring and filtration structures, thereby improving drainage efficiency.
Smart Images
Figure CN122013875A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drainage technology, and in particular to an anti-clogging manhole cover. Background Technology
[0002] As a crucial component of drainage systems, manhole covers directly impact traffic safety and the operational efficiency of urban roads through their drainage performance and anti-clogging capabilities. Manhole covers typically have drainage outlets to facilitate drainage. Generally, these outlets are small, preventing pedestrians from tripping over them and ensuring their safety. However, while these outlets meet basic drainage needs, they are prone to clogging during heavy rainfall, such as downpours, thus affecting the overall drainage capacity of the system. Summary of the Invention
[0003] In view of this, the present application aims to provide an anti-clogging manhole cover to prevent drainage outlet blockage.
[0004] To achieve the above objectives, the technical solution of this application is implemented as follows:
[0005] An anti-clogging manhole cover includes a cover body and a drive mechanism;
[0006] The cover includes a fixed cover, a movable ring sleeved on the fixed cover, a fixed ring sleeved on the movable ring, and a bracket connecting the fixed cover and the fixed ring.
[0007] The movable ring has a first notch on the side facing the fixed ring, and the fixed ring has a second notch on the side facing the movable ring. The driving mechanism can drive the movable ring to rotate from an initial angle to a preset angle.
[0008] When the movable ring is at the initial angle, the first notch and the second notch, together with the fixed ring and the movable ring, form a first drain outlet. When the movable ring is at a preset angle, the first notch and the second notch together form a second drain outlet.
[0009] Furthermore, corresponding to the first notch, a first housing is provided below the movable ring, and a second housing is provided below the fixed ring;
[0010] When the movable ring is at its initial angle, the first housing and the second housing can form a drainage channel.
[0011] The drainage channel includes a first drainage section connecting the first gap, a second drainage section connecting the space below the cover, and a bend connecting the bottom end of the first drainage section and the bottom end of the second drainage section.
[0012] Furthermore, the first housing includes a first side plate and two first end plates disposed at both ends of the first side plate, and the second housing includes a second side plate, two second end plates disposed at both ends of the second side plate, and a partition plate disposed between the first side plate and the second side plate.
[0013] The lower ends of the first side plate and the second side plate are respectively provided with a first curved section and a second curved section, and the first drainage section and the second drainage section are respectively provided on both sides of the partition plate;
[0014] When the movable ring is at its initial angle, the first curved segment abuts against the second curved segment, and the first end plate abuts against the second end plate.
[0015] Furthermore, it also includes a switching assembly for driving the drive mechanism, the switching assembly including a transmitter and a receiver respectively disposed on the first side plate and the second side plate and arranged opposite to each other;
[0016] The transmitter can send an optical signal to the receiver, and the propagation path of the optical signal is located below the partition plate. When the optical signal is blocked, the movable ring is driven to rotate to a preset angle.
[0017] Furthermore, the second end plate is provided with a positioning groove, and the first side plate is provided with a positioning protrusion. As the movable ring rotates, the positioning protrusion can be inserted into the positioning groove.
[0018] Furthermore, the bracket includes a support plate disposed below the fixed cover, a plurality of connecting strips connecting the support plate and the fixed cover, and a connecting arm connecting the support plate and the fixed ring, and the driving mechanism is disposed on the support plate.
[0019] Furthermore, the drive mechanism includes a motor mounted on a support plate, a gear coaxially connected to the output shaft of the motor, and a gear ring mounted on the movable ring and meshing with the gear.
[0020] Furthermore, a filter screen is provided below the cover, and the filter screen can form a receiving cavity with the cover. The first drain outlet and the second drain outlet are connected to the receiving cavity.
[0021] Furthermore, the filter screen includes a first annular portion that connects to the fixing ring and extends obliquely downward, a second annular portion that connects to the support plate and extends obliquely downward, and a connecting portion that connects the first annular portion and the second annular portion.
[0022] Furthermore, the top of the fixing cover and the fixing ring are provided with an upwardly protruding first anti-slip texture, and the top of the movable ring is provided with an upwardly protruding second anti-slip texture;
[0023] The protrusion height of the first anti-slip pattern is greater than that of the second anti-slip pattern.
[0024] Compared with related technologies, this application has the following advantages:
[0025] (1) The anti-clogging manhole cover described in this application, by setting a nested structure of a fixed cover, a movable ring, and a fixed ring, and cooperating with a driving mechanism to drive the movable ring to rotate, can realize the switching between a first drainage outlet and a second drainage outlet. In light rain, the first drainage outlet formed by the first notch and the fixed ring, and the second notch and the movable ring respectively, can reduce the size of the drainage outlet while realizing drainage, so as to avoid the drainage outlet being too large and tripping pedestrians. In heavy rain, the first notch and the second notch form a larger second drainage outlet, which improves the efficiency of rainwater drainage, and reduces the risk of clogging by increasing the size of the drainage outlet.
[0026] (2) By setting a first housing and a second housing below the movable ring and the fixed ring respectively, the first housing and the second housing can be combined to form a drainage channel with a bend. The water stored in the bend forms a water seal structure, thereby effectively preventing the odor in the drainage pipe from escaping upward. When the movable ring rotates to a preset angle, the first housing and the second housing can separate from each other, thereby avoiding the first housing and the second housing from affecting the drainage efficiency of the second drain outlet.
[0027] (3) By setting up a first side plate, a second side plate, a first end plate and a second end plate, and arranging the first drainage section and the second drainage section on both sides of the partition plate, the physical separation and structured layout of the drainage channel can be realized, the water inlet of the first drainage section and the water outlet of the second drainage section can be prevented from interfering with each other, and a complete drainage channel can be formed, thereby ensuring the structural stability of the drainage channel.
[0028] (4) By arranging the transmitter and receiver opposite to each other on the first and second side plates and setting the propagation path of the light signal below the partition plate, the obstruction state of the light signal can be used to monitor the accumulation of debris in the drainage channel in real time. When the debris in the drainage channel blocks the light signal for more than a preset time, the switch assembly will trigger the drive mechanism to run, driving the movable ring to rotate to a preset angle to switch to the second drain outlet. At the same time, since the first housing and the second housing are separated, the debris in the drainage channel will fall off the first housing and the second housing, thereby avoiding blockage of the drainage channel.
[0029] (5) Through the positioning groove and the positioning protrusion, the positioning protrusion can be accurately inserted into the positioning groove during the rotation of the movable ring to the preset angle, so as to achieve accurate positioning and reliable docking of the first shell and the second shell. At the same time, the cooperation structure of the positioning protrusion and the positioning groove can limit the relative displacement of the first shell and the second shell in the vertical direction, and prevent them from being misaligned under the action of water flow impact or pedestrian trampling vibration, thus ensuring the structural integrity of the drainage channel.
[0030] (6) By cooperating with the support plate, connecting strip and connecting arm, the fixing ring can stably support the fixing cover and prevent the fixing cover from collapsing. At the same time, the drive mechanism is integrated and installed on the upper surface of the support plate, which can provide a flat and stable installation reference for the drive mechanism.
[0031] (7) By fixing the motor on the support plate, the gear is coaxially connected with the output shaft of the motor, and a gear ring that meshes with the gear is set on the inner side of the movable ring. The rotational power of the motor can be driven to rotate smoothly through the meshing transmission of the gear and the gear ring. At the same time, the positioning accuracy of the gear transmission is high, which can accurately control the rotation angle of the movable ring and ensure that the switching between the first drain outlet and the second drain outlet is accurate.
[0032] (8) By setting a filter screen under the cover and forming a closed cavity with the fixed cover, fixed ring and support plate, and connecting the first drain outlet and the second drain outlet to the cavity, the rainwater entering through the drain outlet can be pre-filtered, effectively intercepting the debris carried in the rainwater, preventing the debris from entering the drainage channel and urban drainage network. The debris intercepted by the filter screen will accumulate inside the cavity, making it easier for maintenance personnel to clean it up later, reducing the maintenance difficulty and cost of the manhole cover.
[0033] (9) By connecting the first annular part to the fixing ring and extending downwards at an incline to the inside of the receiving cavity, connecting the second annular part to the support plate and extending downwards at an incline to the inside of the receiving cavity, and connecting the bottom ends of the first annular part and the second annular part, the inclined annular structure can guide the debris in the rainwater to the bottom of the receiving cavity, avoid the accumulation of debris on the surface of the filter screen, and prevent the filter screen from being blocked by debris and affecting the drainage efficiency.
[0034] (10) By setting the protrusion height of the first anti-slip pattern to be greater than that of the second anti-slip pattern, the friction between the second anti-slip pattern and the object on the manhole cover can be reduced when the movable ring rotates, thus avoiding the second anti-slip pattern being too high and hindering the rotation of the movable ring, and ensuring that the drive mechanism can easily drive the movable ring to achieve the switching of the drain outlet. Attached Figure Description
[0035] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0036] Figure 1 This is a schematic diagram of the anti-clogging manhole cover in the first state according to an embodiment of this application;
[0037] Figure 2 This is a schematic diagram of the structure of the anti-clogging manhole cover in the first state according to an embodiment of this application;
[0038] Figure 3 This is a schematic diagram of the anti-clogging manhole cover in the second state according to an embodiment of this application;
[0039] Figure 4 This is a schematic diagram of the structure of the anti-clogging manhole cover in the second state of the embodiment of this application;
[0040] Figure 5 This is a schematic diagram of the internal structure of the anti-clogging manhole cover described in the embodiments of this application;
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. Cover;
[0043] 101. Fixed cover;
[0044] 102. Movable ring; 1021. First notch; 1022. Gear ring;
[0045] 103. Fixing ring; 1031. Second notch;
[0046] 104. First anti-slip texture; 105. Second anti-slip texture;
[0047] 2. First housing; 201. First side plate; 2011. First curved segment; 202. First end plate; 203. Transmitter; 204. Positioning protrusion;
[0048] 3. Second shell;
[0049] 301. Second side plate; 3011. Second curved segment; 302. Second end plate; 303. Separator plate; 304. Receiver; 305. Positioning groove;
[0050] 4. First drainage outlet;
[0051] 5. Second drainage outlet;
[0052] 6. Drainage channel; 601. First drainage section; 602. Second drainage section; 603. Turnaround section;
[0053] 7. Bracket; 701. Support plate; 702. Connecting bar; 703. Connecting arm; 704. Motor; 705. Gear;
[0054] 8. Filter screen; 801. First annular part; 802. Second annular part; 803. Connecting part. Detailed Implementation
[0055] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0057] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0058] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.
[0059] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0060] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.
[0061] An embodiment of the first aspect of this application provides an anti-clogging manhole cover.
[0062] In related technologies, the drainage outlets on manhole covers are relatively small, which can prevent pedestrians from tripping over the outlets when stepping on the manhole cover, ensuring pedestrian safety. However, although the drainage outlets of this type of manhole cover can meet basic drainage needs, in the event of heavy rain or other severe weather, the single, fixed, small-sized drainage outlet is prone to blockage, thereby affecting the drainage capacity of the entire drainage system.
[0063] In view of this, in order to overcome the shortcomings of related technologies, the anti-clogging manhole cover in this embodiment combines... Figure 1 , Figure 2 As shown, the overall design includes a cover 1 and a drive mechanism. The cover 1 includes a fixed cover 101, a movable ring 102 sleeved on the fixed cover 101, a fixed ring 103 sleeved on the movable ring 102, and a bracket 7 connecting the fixed cover 101 and the fixed ring 103.
[0064] The movable ring 102 has a first notch 1021 on the side facing the fixed ring 103, and the fixed ring 103 has a second notch 1031 on the side facing the movable ring 102. The driving mechanism can drive the movable ring 102 to rotate from the initial angle to the preset angle.
[0065] When the movable ring 102 is at the initial angle, the first notch 1021 and the second notch 1031, together with the fixed ring 103 and the movable ring 102, form the first drain outlet 4. When the movable ring 102 is at the preset angle, the first notch 1021 and the second notch 1031 together form the second drain outlet 5.
[0066] Therefore, by setting up a nested structure of fixed cover 101, movable ring 102, and fixed ring 103, and cooperating with a drive mechanism to rotate movable ring 102, the switching between the first drain outlet 4 and the second drain outlet 5 can be achieved. In light rain, the first drain outlet 4, formed by the first notch 1021 and fixed ring 103, and the second notch 1031 and movable ring 102 respectively, achieves drainage while reducing the size of the drain outlet to prevent it from being too large and tripping pedestrians. In heavy rain, the first notch 1021 and second notch 1031 form a larger second drain outlet 5, improving rainwater drainage efficiency and reducing the risk of blockage by increasing the size of the drain outlet.
[0067] Based on the above overall introduction, specifically, combined with Figure 3 , Figure 4 and Figure 5As shown, corresponding to the first notch 1021, a first housing 2 is provided below the movable ring 102 in this embodiment, and a second housing 3 is provided below the fixed ring 103. When the movable ring 102 is at its initial angle, the first housing 2 and the second housing 3 can form a drainage channel 6. The drainage channel 6 includes a first drainage section 601 that connects to the first notch 1021, a second drainage section 602 that connects to the space below the cover 1, and a bend section 603 that connects the bottom end of the first drainage section 601 and the bottom end of the second drainage section 602.
[0068] By setting a first housing 2 and a second housing 3 below the movable ring 102 and the fixed ring 103 respectively, the first housing 2 and the second housing 3 can be combined to form a drainage channel 6 with a bend 603. The water stored in the bend 603 forms a water seal structure, thereby effectively preventing odors from escaping upwards from the drainage pipe. Furthermore, when the movable ring 102 rotates to a preset angle, the first housing 2 and the second housing 3 can separate from each other, thereby preventing the first housing 2 and the second housing 3 from affecting the drainage efficiency of the second drain outlet 5.
[0069] In some exemplary embodiments, the first housing 2 includes a first side plate 201 and two first end plates 202 disposed at both ends of the first side plate 201, and the second housing 3 includes a second side plate 301, two second end plates 302 disposed at both ends of the second side plate 301, and a partition plate 303 disposed between the first side plate 201 and the second side plate 301.
[0070] The lower ends of the first side plate 201 and the second side plate 301 are respectively provided with a first curved segment 2011 and a second curved segment 3011, and the first drainage segment 601 and the second drainage segment 602 are respectively provided on both sides of the partition plate 303. When the movable ring 102 is in the initial angle, the first curved segment 2011 abuts against the second curved segment 3011, and the first end plate 202 abuts against the second end plate 302.
[0071] By setting a first side plate 201, a second side plate 301, a first end plate 202, and a second end plate 302, and arranging the first drainage section 601 and the second drainage section 602 on both sides of the partition plate 303, the physical separation and structured layout of the drainage channel 6 can be achieved, avoiding interference between the water inlet of the first drainage section 601 and the water outlet of the second drainage section 602, and forming a complete drainage channel 6, thereby ensuring the structural stability of the drainage channel 6.
[0072] Furthermore, this embodiment also includes a switch assembly for driving the drive mechanism. The switch assembly includes a transmitter 203 and a receiver 304 disposed on the first side plate 201 and the second side plate 301, and arranged opposite to each other. The transmitter 203 can emit an optical signal to the receiver 304, and the propagation path of the optical signal is located below the partition plate 303. When the optical signal is blocked, the movable ring 102 is driven to rotate to a preset angle.
[0073] By arranging the transmitter 203 and receiver 304 opposite to each other on the first side plate 201 and the second side plate 301, and setting the propagation path of the light signal below the partition plate 303, the accumulation of debris in the drainage channel 6 can be monitored in real time by utilizing the obstruction state of the light signal. When the debris in the drainage channel 6 blocks the light signal for more than a preset time, the switching assembly will trigger the drive mechanism to operate, driving the movable ring 102 to rotate to a preset angle to switch to the second drain outlet 5. At the same time, since the first housing 2 and the second housing 3 are separated, the debris in the drainage channel 6 will fall off the first housing 2 and the second housing 3, thereby preventing the drainage channel 6 from becoming blocked.
[0074] In specific implementation, the transmitter 203 and receiver 304 of this embodiment are conventional photosensitive switch components well known to those skilled in the art, and their specific structures will not be described in detail here.
[0075] In some exemplary embodiments, the second end plate 302 is provided with a positioning groove 305, and the first side plate 201 is provided with a positioning protrusion 204. As the movable ring 102 rotates, the positioning protrusion 204 can be inserted into the positioning groove 305.
[0076] Through the positioning groove 305 and the positioning protrusion 204, the positioning protrusion 204 can be precisely inserted into the positioning groove 305 during the rotation of the movable ring 102 to a preset angle, achieving precise positioning and reliable docking of the first housing 2 and the second housing 3. Simultaneously, the mating structure of the positioning protrusion 204 and the positioning groove 305 restricts the relative displacement of the first housing 2 and the second housing 3 in the vertical direction, preventing misalignment under the impact of water flow or vibration from pedestrians, thus ensuring the structural integrity of the drainage channel 6.
[0077] In specific implementation, the positioning protrusion 204 of this embodiment is provided at the end of the first curved arc segment 2011 of the first side plate 201 to achieve a stable overlap between the first curved arc segment 2011 and the second curved arc segment 3011.
[0078] In some exemplary embodiments, the bracket 7 includes a support plate 701 disposed below the fixed cover 101, a plurality of connecting strips 702 connecting the support plate 701 and the fixed cover 101, and a connecting arm 703 connecting the support plate 701 and the fixed ring 103, and a drive mechanism is disposed on the support plate 701.
[0079] The combination of the support plate 701, connecting strip 702, and connecting arm 703 enables the fixing ring 103 to stably support the fixing cover 101, preventing the fixing cover 101 from collapsing. At the same time, the drive mechanism is integrated and installed on the upper surface of the support plate 701, which provides a flat and stable installation reference for the drive mechanism.
[0080] Furthermore, as a specific implementation, the drive mechanism of this embodiment includes a motor 704 mounted on a support plate 701, a gear 705 coaxially connected to the output shaft of the motor 704, and a gear ring 1022 mounted on the movable ring 102 and meshing with the gear 705.
[0081] By fixing the motor 704 to the support plate 701, the gear 705 is coaxially connected to the output shaft of the motor 704, and a gear ring 1022 that meshes with the gear 705 is provided on the inner side of the movable ring 102. The rotational power of the motor 704 can be driven to rotate the movable ring 102 smoothly through the meshing transmission of the gear 705 and the gear ring 1022. At the same time, the positioning accuracy of the gear 705 transmission is high, which can accurately control the rotation angle of the movable ring 102 and ensure that the switching between the first drain port 4 and the second drain port 5 is accurate.
[0082] In addition, as a specific implementation, a filter screen 8 is provided below the cover 1. The filter screen 8 can form a receiving cavity with the cover 1, and the first drain outlet 4 and the second drain outlet 5 are connected to the receiving cavity.
[0083] By installing a filter screen 8 below the cover 1, and forming a closed receiving cavity with the fixed cover 101, the fixed ring 103, and the support plate 701, and by connecting the first drain outlet 4 and the second drain outlet 5 to the receiving cavity, the rainwater entering through the drain outlet can be pre-filtered, effectively intercepting debris carried in the rainwater and preventing debris from entering the drainage channel 6 and the urban drainage network. The debris intercepted by the filter screen 8 will accumulate inside the receiving cavity, making it easier for maintenance personnel to clean it in a concentrated manner later, thus reducing the maintenance difficulty and cost of the manhole cover.
[0084] Specifically, in some other exemplary embodiments, the filter screen 8 includes a first annular portion 801 that connects to the retaining ring 103 and extends obliquely downward, a second annular portion 802 that connects to the support plate 701 and extends obliquely downward, and a connecting portion 803 that connects the first annular portion 801 and the second annular portion 802.
[0085] By connecting the first annular portion 801 to the fixing ring 103 and extending it downwards at an incline into the cavity, and connecting the second annular portion 802 to the support plate 701 and extending it downwards at an incline into the cavity, and connecting the bottom ends of the first annular portion 801 and the second annular portion 802 with the connecting portion 803, the inclined annular structure can guide the debris in the rainwater to the bottom of the cavity, preventing the debris from accumulating on the upper surface of the filter screen 8 and preventing the filter screen 8 from being blocked by debris, thus affecting the drainage efficiency.
[0086] Finally, in this embodiment, the top of the fixing cover 101 and the fixing ring 103 are provided with an upwardly protruding first anti-slip texture 104, and the top of the movable ring 102 is provided with an upwardly protruding second anti-slip texture 105. The protrusion height of the first anti-slip texture 104 is greater than the protrusion height of the second anti-slip texture 105.
[0087] By setting the protrusion height of the first anti-slip tread 104 to be greater than that of the second anti-slip tread 105, the friction between the second anti-slip tread 105 and objects on the manhole cover can be reduced when the movable ring 102 rotates. This prevents the second anti-slip tread 105 from being too high and hindering the rotation of the movable ring 102, ensuring that the drive mechanism can easily drive the movable ring 102 to switch the drain outlet.
[0088] The anti-clogging manhole cover of this embodiment adopts the above design. Through a nested structure of a fixed cover 101, a movable ring 102, and a fixed ring 103, and with a driving mechanism to rotate the movable ring 102, the switching between the first drain outlet 4 and the second drain outlet 5 can be achieved. In light rain, drainage is achieved while reducing the size of the drain outlet to prevent it from being too large and tripping pedestrians. In heavy rain, rainwater drainage efficiency is improved, and the risk of clogging is reduced by increasing the size of the drain outlet.
[0089] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.
Claims
1. A clog-resistant manhole cover, characterized in that: Includes a cover (1) and a drive mechanism; The cover (1) includes a fixed cover (101), a movable ring (102) sleeved on the fixed cover (101), a fixed ring (103) sleeved on the movable ring (102), and a bracket (7) connecting the fixed cover (101) and the fixed ring (103). The movable ring (102) has a first notch (1021) on the side facing the fixed ring (103), and the fixed ring (103) has a second notch (1031) on the side facing the movable ring (102). The driving mechanism can drive the movable ring (102) to rotate from an initial angle to a preset angle. When the movable ring (102) is at the initial angle, the first notch (1021) and the second notch (1031) together with the fixed ring (103) and the movable ring (102) form a first drain outlet (4), and when the movable ring (102) is at the preset angle, the first notch (1021) and the second notch (1031) together form a second drain outlet (5).
2. The anti-clogging manhole cover according to claim 1, characterized in that: Corresponding to the first notch (1021), a first housing (2) is provided below the movable ring (102), and a second housing (3) is provided below the fixed ring (103); When the movable ring (102) is at the initial angle, the first housing (2) and the second housing (3) can form a drainage channel (6). The drainage channel (6) includes a first drainage section (601) that connects to the first gap (1021), a second drainage section (602) that connects to the space below the cover (1), and a bend section (603) that connects the bottom end of the first drainage section (601) and the bottom end of the second drainage section (602).
3. The anti-clogging manhole cover according to claim 2, characterized in that: The first housing (2) includes a first side plate (201) and two first end plates (202) disposed at both ends of the first side plate (201), and the second housing (3) includes a second side plate (301), two second end plates (302) disposed at both ends of the second side plate (301), and a partition plate (303) disposed between the first side plate (201) and the second side plate (301). The lower ends of the first side plate (201) and the second side plate (301) are respectively provided with a first curved section (2011) and a second curved section (3011), and the first drainage section (601) and the second drainage section (602) are respectively provided on both sides of the partition plate (303); When the movable ring (102) is at the initial angle, the first curved segment (2011) abuts against the second curved segment (3011), and the first end plate (202) abuts against the second end plate (302).
4. The anti-clogging manhole cover according to claim 3, characterized in that: It also includes a switch assembly for driving the drive mechanism, the switch assembly including a transmitter (203) and a receiver (304) disposed on the first side plate (201) and the second side plate (301) respectively and arranged opposite to each other. The transmitter (203) can send an optical signal to the receiver (304), and the propagation path of the optical signal is located below the partition plate (303). When the optical signal is blocked, the movable ring (102) is driven to rotate to a preset angle.
5. The anti-clogging manhole cover according to claim 3, characterized in that: The second end plate (302) is provided with a positioning groove (305), and the first side plate (201) is provided with a positioning protrusion (204). As the movable ring (102) rotates, the positioning protrusion (204) can be inserted into the positioning groove (305).
6. The anti-clogging manhole cover according to claim 1, characterized in that: The bracket (7) includes a support plate (701) disposed below the fixed cover (101), a plurality of connecting strips (702) connecting the support plate (701) and the fixed cover (101), and a connecting arm (703) connecting the support plate (701) and the fixed ring (103), and the driving mechanism is disposed on the support plate (701).
7. The anti-clogging manhole cover according to claim 6, characterized in that: The drive mechanism includes a motor (704) mounted on a support plate (701), a gear (705) coaxially connected to the output shaft of the motor (704), and a gear ring (1022) mounted on the movable ring (102) and meshing with the gear (705).
8. The anti-clogging manhole cover according to claim 6, characterized in that: A filter screen (8) is provided below the cover (1). The filter screen (8) can form a receiving cavity with the cover (1). The first drain (4) and the second drain (5) are connected to the receiving cavity.
9. The anti-clogging manhole cover according to claim 8, characterized in that: The filter screen (8) includes a first annular portion (801) that connects to the fixing ring (103) and extends downward at an angle, a second annular portion (802) that connects to the support plate (701) and extends downward at an angle, and a connecting portion (803) that connects the first annular portion (801) and the second annular portion (802).
10. The anti-clogging manhole cover according to any one of claims 1 to 9, characterized in that: The top of the fixed cover (101) and the fixed ring (103) are provided with an upward protruding first anti-slip texture (104), and the top of the movable ring (102) is provided with an upward protruding second anti-slip texture (105). The protrusion height of the first anti-slip pattern (104) is greater than the protrusion height of the second anti-slip pattern (105).