A municipal drainage structure with stable drainage

Abstract

The utility model relates to municipal drainage facilities technical field, concretely is a kind of municipal drainage structure of stable drainage, including drainage well seat, well lid is arranged on drainage well seat, the inner wall of drainage well seat is equipped with first lap convex edge, a pair of first support rod and a pair of second support rod are hinged on first lap convex edge, the bottom surface of well lid is fixed with several vertical rods, vertical rod vertically penetrates first lap convex edge, the bottom surface of well lid is symmetrically equipped with two abutments, and the bottom surface of abutment is provided with abutment groove. The municipal drainage structure of stable drainage, the support rod and the abutment cooperation structure of being set, when opening well lid drainage, the end of support rod can be supported into the abutment groove of abutment, stable support is formed to well lid, and the well lid in support state can replace additional reminder sign, meanwhile, the well lid supported does not need to be placed directly on ground, reduces the situation that well lid hinders traffic and causes personnel to stumble.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage facilities technology, specifically a municipal drainage structure for stable drainage. Background Technology

[0002] Municipal drainage is a crucial component of urban infrastructure, primarily responsible for collecting, transporting, and discharging rainwater, domestic sewage, and some industrial wastewater within the city limits. It encompasses multiple scenarios, including road drainage, residential area drainage, and river replenishment, maintaining the city's water cycle balance through the coordinated use of pipe networks, manhole covers, and other facilities. In daily operation, municipal drainage systems prevent road flooding from disrupting traffic, ensure a clean living environment for residents, and provide fundamental support for urban flood control and drainage, contributing to the stable and orderly operation of the city.

[0003] Utility model patent CN221609061U discloses a municipal drainage manhole cover. This manhole cover includes a manhole cylinder, with a cover body movably connected to the top of the cylinder. A disassembly unit is located inside the cylinder. The disassembly unit includes multiple mounting components fixedly connected inside the cylinder. Each mounting component has an mounting groove, and a hydraulic rod is fixedly connected inside the mounting groove. A filter screen is located inside the cylinder, and multiple vertical plates are fixedly connected to the bottom of the filter screen. Limit grooves are provided inside the vertical plates. This municipal drainage manhole cover allows for easy removal of the cover body, followed by resetting the output end using the hydraulic rod, thus releasing the filter screen. Finally, the filter screen can be removed and its surface cleaned. Compared to disassembling the filter screen by rotating bolts, this method is more time-saving and labor-saving, thereby improving the efficiency of cleaning the filter screen.

[0004] When the municipal drainage manhole cover is opened for drainage, on the one hand, due to the lack of a supporting and warning structure to match the manhole cover, an additional independent warning sign is needed to prevent people from stepping on the opening of the manhole seat; on the other hand, the opened manhole cover has no designated place to be placed, and when placed directly on the ground, it can easily become a passage obstacle, posing a risk of people tripping. In view of this, we propose a municipal drainage structure for stable drainage. Utility Model Content

[0005] The purpose of this invention is to provide a stable municipal drainage structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A municipal drainage structure for stable drainage includes a drainage well base, on which a well cover is mounted. The inner wall of the drainage well base is provided with a first overlapping protrusion that protrudes inward along the radial direction of the drainage well base axis. The well cover overlaps on the first overlapping protrusion. A pair of first support rods are hinged to one side of the top surface of the first overlapping protrusion. A pair of second support rods are hinged to the other side of the top surface of the first overlapping protrusion opposite to the hinge point of the first support rods. The first support rods and the second support rods are symmetrically distributed on the first overlapping protrusion. Several vertical rods arranged in a circular array around the axis of the manhole cover are fixed at the outer periphery of the bottom surface of the manhole cover. The vertical rods pass through the first overlapping protrusion and are slidably connected to the first overlapping protrusion. Two abutments are symmetrically arranged on the bottom surface of the manhole cover around the axis of the manhole cover. The bottom surface of the abutments is provided with abutment grooves. By moving the first support rod and the second support rod, the ends of the first support rod and the second support rod can be abutted into the two abutment grooves respectively. At this time, the manhole cover is in a supported state.

[0007] Preferably, a pair of first hinge slots are provided on one side of the top surface of the first overlapping protrusion, and the first ends of the two first support rods are respectively hinged in the two first hinge slots; Preferably, a pair of second hinge slots are provided on the other side of the first overlapping protrusion opposite to the first hinge slot, and the first ends of the two second support rods are respectively hinged in the two second hinge slots. Preferably, a pair of first overlapping grooves are provided on the top surface of the first overlapping protrusion on the same side as the second hinge groove, and the ends of the two first support rods are respectively overlapping in the two first overlapping grooves. A pair of second overlapping grooves are provided on the top surface of the first overlapping protrusion on the same side as the first hinge groove, and the ends of the two second support rods are respectively overlapping in the two second overlapping grooves. Of these three features, the first hinge slot and the second hinge slot provide a hinged base for the support rod, ensuring that the support rod can rotate flexibly; the first slot and the second slot can fix the support rod in its stored state, preventing it from shaking randomly.

[0008] Preferably, the distance between the two first support rods is less than the distance between the two second support rods, the two first support rods are sandwiched between the two second support rods, a first connecting rod is connected between the ends of the two first support rods, a second connecting rod is connected between the ends of the two second support rods, the second connecting rod is in the shape of a bent rod, and when both the first support rods and the second support rods are in the retracted state, the second connecting rod passes over the first support rods. In this setup, the spacing design and connecting rod structure facilitate synchronous operation of the support rods, and the curved second connecting rod can avoid interference with the first support rod during storage, saving installation space.

[0009] Preferably, the first overlapping protrusion is provided with a plurality of through holes, the number of through holes being equal to the number of vertical rods and their positions corresponding one-to-one, and the vertical rods passing through the through holes vertically. In this setting, the corresponding through holes and vertical rods guide the lifting and lowering direction of the manhole cover, preventing it from shifting and ensuring its smooth movement.

[0010] Preferably, a groove is provided at the middle of the top surface of the manhole cover. The groove is waist-shaped and can be used as the force application point when the manhole cover is lifted. In this design, the waist-shaped groove makes it easy for workers to reach in with their hands or tools, providing a convenient point of leverage for lifting the manhole cover.

[0011] Preferably, an annular second overlapping protrusion is integrally formed at the bottom edge of the inner ring facing the center of the drainage well seat of the first overlapping protrusion. A protective net is installed on the second overlapping protrusion. The protective net includes an annular outer ring. Several baffles are tightly welded inside the outer ring. The baffles intersect each other to form a crisscross structure. In this setup, the second overlapping protrusion of the ring provides a uniform overlapping surface for the protective net, and the crisscrossing baffles can filter debris in the water flow, ensuring smooth drainage.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This stable drainage municipal drainage structure, through the matching structure of the support rod and the abutment, allows the end of the support rod to be inserted into the abutment groove of the abutment when the manhole cover is opened for drainage, thus providing stable support for the manhole cover. The supported manhole cover can replace additional warning signs, avoiding the need to place warning signs separately. At the same time, the supported manhole cover does not need to be placed directly on the ground, reducing the possibility of the manhole cover obstructing passage and causing people to trip. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the drainage well base in this utility model; Figure 3 This is a schematic diagram of the structure of the first support rod in this utility model; Figure 4 This is a schematic diagram of the structure of the second support rod in this utility model; Figure 5 This is a schematic diagram of the structure of the first support rod and the second support rod in the stowed state in this utility model; Figure 6 This is a schematic diagram of the structure of the manhole cover in this utility model; Figure 7 This is a schematic diagram of the protective netting structure in this utility model; The meanings of the labels in the diagram are as follows: 100. Drainage well base; 110. First overlapping protrusion; 111. First hinge groove; 112. First overlapping groove; 113. Second hinge groove; 114. Second overlapping groove; 115. Through hole; 120. Second overlapping protrusion; 130. First support rod; 131. First connecting rod; 140. Second support rod; 141. Second connecting rod; 200. Manhole cover; 210. Vertical rod; 220. Support seat; 221. Support groove; 230. Leakage groove; 300. Protective netting; 310. Outer ring; 320. Stop bar. Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 of this utility model.

[0016] Please see Figures 1-7A stable municipal drainage structure includes a drainage well base 100, on which a well cover 200 is mounted. The inner wall of the drainage well base 100 has a first overlapping protrusion 110 that protrudes radially inward along the axis of the drainage well base 100. The well cover 200 overlaps the first overlapping protrusion 110, which provides a stable overlapping support foundation for the well cover 200, preventing instability caused by direct contact between the well cover 200 and the inner wall of the drainage well base 100. An annular second overlapping protrusion 120 is integrally formed at the bottom edge of the inner ring of the first overlapping protrusion 110 facing the center of the drainage well base 100. The annular second overlapping protrusion 120 can form a continuous... The continuous overlapping surface ensures that the force is evenly distributed when the protective net 300 is installed. The protective net 300 is installed on the second overlapping protrusion 120. The protective net 300 can perform preliminary filtration of the water flowing into the drainage well seat 100 and intercept debris such as branches and plastic bags in the water. The protective net 300 includes an annular outer ring 310, which can be adapted to the second overlapping protrusion 120 to provide an installation carrier for the entire protective net 300. Several baffles 320 are tightly welded inside the outer ring 310. The baffles 320 intersect to form a crisscross structure. The crisscross baffles 320 can increase the filtration area and ensure that the water flows normally, avoiding debris from clogging the drainage channel.

[0017] like Figures 1-5 As shown, in this utility model, a pair of first support rods 130 are hinged to one side of the top surface of the first overlapping protrusion 110, and a pair of second support rods 140 are hinged to the other side of the top surface of the first overlapping protrusion 110 opposite to the hinge point of the first support rods 130. The first support rods 130 and the second support rods 140 are symmetrically distributed on the first overlapping protrusion 110. The symmetrically distributed first support rods 130 and second support rods 140 can provide balanced support for the manhole cover 200 from both sides, preventing the manhole cover 200 from tilting during support. A pair of first hinge grooves 111 are provided on one side of the top surface of the first overlapping protrusion 110. The first hinge grooves 111 and the second overlapping grooves 114 are on the same side of the first overlapping protrusion 110. The heads of the two first support rods 130 are respectively hinged in the two first hinge grooves 111. The first hinge grooves 111 can provide hinge installation space for the first support rods 130, ensuring that the first support rods 130 can rotate flexibly around the hinge point. A pair of second hinge slots 113 are provided on the other side of the first overlapping protrusion 110 opposite to the first hinge slot 111. The second hinge slots 113 and the first overlapping slot 112 are on the same side of the first overlapping protrusion 110. The first ends of the two second support rods 140 are respectively hinged in the two second hinge slots 113. The second hinge slots 113 provide a hinge base for the second support rods 140, so that the second support rods 140 can cooperate with the first support rods 130 to achieve rotation.

[0018] like Figure 2 and Figure 5 As shown, specifically, a pair of first overlapping grooves 112 are provided on the top surface of the first overlapping protrusion 110 on the same side as the second hinge groove 113. The ends of the two first support rods 130 are respectively overlapped in the two first overlapping grooves 112. The first overlapping grooves 112 can limit the ends of the first support rods 130 in the stored state, preventing the first support rods 130 from shaking randomly. A pair of second overlapping grooves 114 are provided on the top surface of the first overlapping protrusion 110 on the same side as the first hinge groove 111. The ends of the two second support rods 140 are respectively overlapped in the two second overlapping grooves 114. The second overlapping grooves 114 can fix the ends of the second support rods 140 in the stored state, ensuring the neatness of the first support rods 130 and the second support rods 140 when stored.

[0019] like Figure 1 , Figure 2 and Figure 6 As shown, furthermore, several vertical rods 210 arranged in a circular array around the axis of the manhole cover 200 are fixed to the outer periphery of the bottom surface of the manhole cover 200. 210 is a smooth rod-like structure, with the vertical rods 210 vertically penetrating the first overlapping protrusion 110 and slidingly connected to it. The circular array of vertical rods 210 ensures uniform force distribution when the manhole cover 200 moves up and down, and the sliding connection ensures smooth lifting and lowering of the manhole cover 200. When the manhole cover 200 is lifted upwards... When the end of the vertical rod 210 detaches from the through hole 115, the manhole cover 200 separates from the drainage well seat 100 to facilitate maintenance work in the well. Several through holes 115 are provided on the first overlapping protrusion 110. The number of through holes 115 is equal to the number of vertical rods 210, and their positions correspond one-to-one. The vertical rods 210 vertically penetrate the through holes 115. The corresponding through holes 115 and vertical rods 210 guide the movement direction of the manhole cover 200, preventing deviation during lifting and lowering. A groove 230 is provided in the middle of the top surface of the manhole cover 200. The groove 230 is waist-shaped and serves as a force application point when lifting the manhole cover 200. The waist-shaped groove 230 allows workers to easily insert their hands or tools, providing a convenient force application point for lifting the manhole cover 200.

[0020] like Figure 1 and Figure 6As shown, two abutments 220 are symmetrically arranged on the bottom surface of the manhole cover 200 with the axis of the manhole cover 200 as the center. The symmetrically arranged abutments 220 can cooperate with the first support rod 130 and the second support rod 140 to ensure that the manhole cover 200 is balanced under force when supported. The bottom surface of the abutment 220 is provided with abutment groove 221, which can lock and limit the ends of the first support rod 130 and the second support rod 140 to prevent the ends of the support rods from slipping during the support process. By moving the first support rod 130 and the second support rod 140, the ends of the first support rod 130 and the second support rod 140 can be inserted into the two abutment grooves 221 respectively. At this time, the manhole cover 200 is in a supported state. The supported manhole cover 200 does not need to be placed directly on the ground, which can reduce the obstruction of passage. At the same time, the supported state can also serve as a reminder to passers-by to avoid accidentally stepping on the opening of the drainage well seat 100.

[0021] like Figures 3-5 As shown, it is worth noting that the distance between the two first support rods 130 is smaller than the distance between the two second support rods 140. The two first support rods 130 are sandwiched between the two second support rods 140. This spacing design allows the first support rods 130 and the second support rods 140 to be arranged compactly when stored, saving installation space on the first overlapping protrusion 110. A first connecting rod 131 connects the ends of the two first support rods 130, which can connect the two first support rods 130 into a whole, facilitating synchronous movement of the two rods. The first support rod 130 rotates; a second connecting rod 141 connects the ends of the two second support rods 140. The second connecting rod 141 enables the two second support rods 140 to move synchronously, improving the ease of operation; the second connecting rod 141 is in the shape of a bent rod. When both the first support rod 130 and the second support rod 140 are in the retracted state, the second connecting rod 141 passes over the first support rod 130. The bent rod design can avoid interference between the second connecting rod 141 and the first support rod 130 when retracted, ensuring that both can be smoothly retracted into place.

[0022] In this embodiment of the stable drainage municipal drainage structure, when in use, firstly, if it is necessary to open the manhole cover 200 for drainage, the worker can insert their hand or a tool into the drainage groove 230 on the top surface of the manhole cover 200 and lift the manhole cover 200 upwards. At this time, the vertical rod 210 on the bottom surface of the manhole cover 200 will slide upwards along the through hole 115 on the first overlapping protrusion 110. Then, after the manhole cover 200 is lifted to a suitable height, the first support rod 130 and the second support rod 140 are respectively moved, so that the first support rod 130 rotates around the first hinge groove 111 and the second support rod 140 rotates around the second hinge groove 113, until the ends of both are aligned with the bottom surface abutment 220 of the manhole cover 200. Next, slowly lower the manhole cover 200 so that the ends of the first support rod 130 and the second support rod 140 respectively abut into the corresponding abutment grooves 221. At this time, the manhole cover 200 is stably supported and does not need to be placed on the ground. At the same time, the supported state can alert passers-by. Finally, if it is necessary to close the manhole cover 200, first lift the manhole cover 200 upward so that the ends of the support rods are disengaged from the abutment grooves 221. Then, push the ends of the first support rod 130 back into the first overlapping groove 112 and the ends of the second support rod 140 back into the second overlapping groove 114. Then, slowly lower the manhole cover 200 until it overlaps the first overlapping protrusion 110, completing the closing operation. If it is necessary to clean the protective net 300, simply remove the protective net 300 from the second overlapping protrusion 120, clean it, and then re-relay it.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A municipal drainage structure for stable drainage, comprising a drainage well base (100) and a well cover (200) mounted on the drainage well base (100), characterized in that: The inner wall of the drainage well seat (100) is provided with a first overlapping protrusion (110) that protrudes inward along the radial direction of the axis of the drainage well seat (100). The well cover (200) overlaps on the first overlapping protrusion (110). A pair of first support rods (130) are hinged to one side of the top surface of the first overlapping protrusion (110). A pair of second support rods (140) are hinged to the other side of the top surface of the first overlapping protrusion (110) opposite to the hinge point of the first support rods (130). The first support rods (130) and the second support rods (140) are symmetrically distributed on the first overlapping protrusion (110). Several vertical rods (210) arranged in a circular array around the axis of the manhole cover (200) are fixed at the outer periphery of the bottom surface of the manhole cover (200). The vertical rods (210) penetrate the first overlapping protrusion (110) vertically and are slidably connected to the first overlapping protrusion (110). Two abutments (220) are symmetrically arranged on the bottom surface of the manhole cover (200) around the axis of the manhole cover (200). The bottom surface of the abutment (220) is provided with abutment grooves (221). By moving the first support rod (130) and the second support rod (140), the ends of the first support rod (130) and the second support rod (140) can be inserted into the two abutment grooves (221) respectively. At this time, the manhole cover (200) is in a supported state.

2. The municipal drainage structure for stable drainage according to claim 1, characterized in that: A pair of first hinge slots (111) are provided on one side of the top surface of the first overlapping protrusion (110), and the first ends of the two first support rods (130) are respectively hinged in the two first hinge slots (111).

3. The municipal drainage structure for stable drainage according to claim 2, characterized in that: A pair of second hinge slots (113) are provided on the other side of the first overlapping protrusion (110) opposite to the first hinge slot (111), and the first ends of the two second support rods (140) are respectively hinged in the two second hinge slots (113).

4. The municipal drainage structure for stable drainage according to claim 3, characterized in that: A pair of first grooves (112) are provided on the top surface of the first overlapping protrusion (110) on the same side as the second hinge groove (113), and the ends of the two first support rods (130) are respectively connected in the two first grooves (112). A pair of second grooves (114) are provided on the top surface of the first overlapping protrusion (110) on the same side as the first hinge groove (111), and the ends of the two second support rods (140) are respectively connected in the two second grooves (114).

5. The municipal drainage structure for stable drainage according to claim 1, characterized in that: The distance between the two first support rods (130) is less than the distance between the two second support rods (140). The two first support rods (130) are sandwiched between the two second support rods (140). A first connecting rod (131) is connected between the ends of the two first support rods (130), and a second connecting rod (141) is connected between the ends of the two second support rods (140). The second connecting rod (141) is in the shape of a bent rod. When both the first support rods (130) and the second support rods (140) are in the retracted state, the second connecting rod (141) passes over the first support rods (130).

6. The municipal drainage structure for stable drainage according to claim 1, characterized in that: The first overlapping protrusion (110) has several through holes (115), the number of through holes (115) is equal to the number of vertical rods (210) and their positions correspond one-to-one, and the vertical rods (210) pass vertically through the through holes (115).

7. The municipal drainage structure for stable drainage according to claim 1, characterized in that: A groove (230) is provided in the middle of the top surface of the manhole cover (200). The groove (230) is waist-shaped and can be used as the force application part when the manhole cover (200) is lifted.

8. The municipal drainage structure for stable drainage according to claim 1, characterized in that: The first overlapping protrusion (110) has an integrally formed second overlapping protrusion (120) at the bottom edge of the inner ring facing the center of the drainage well seat (100). A protective net (300) is installed on the second overlapping protrusion (120). The protective net (300) includes an annular outer ring (310). Several baffles (320) are tightly welded inside the outer ring (310). The baffles (320) intersect each other to form a crisscross structure.

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