A flood discharge and drainage manhole cover

Abstract

The present invention provides a flood discharge and drainage manhole cover, comprising: an outer cover; an inner cover, the inner cover is arranged on the inner side surface of the outer cover, limiting cavities are respectively arranged around the bottom of the inner cover, a sliding cavity is arranged on one side of the inner side surface of the limiting cavity, a fixing plate is fixedly installed at one end of the inner side surface of the sliding cavity, a limiting plate is fixedly installed at the other end of the inner side surface of the sliding cavity, and sliding rods are respectively slidably connected inside the limiting plate and the fixing plate. The flood discharge and drainage manhole cover provided by the present invention, through the cooperation of structures such as the limiting cavity, the sliding cavity, the fixing plate, the limiting plate, the sliding rod, the baffle plate, the third spring, the positioning hole, the water storage frame, the fixing rod, the water leakage hole, the pushing block, the second spring and the first spring, when in use, can prevent when there is no rainy weather and flood discharge is not required, when a pedestrian steps on the inner cover, the inner cover suddenly moves downward, thus causing danger, and increases safety.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage well covers, and particularly relates to a flood drainage well cover. Background Art

[0002] There are many underground pipelines in urban construction, such as sewer pipes, underground gas pipes, tap water pipes, power pipes, communication pipes, national defense pipes, etc. There should be an outlet leading to the ground at regular intervals for these pipelines. The section from the pipeline to the ground is called a manhole, and the manhole opening is usually flush with the ground. Therefore, a lid is needed to cover the manhole, and the lid used to cover the manhole is called a manhole cover.

[0003] For example, in the patent application with the publication number CN218148516U in the prior art, when the external water pressure increases, the water weight above the inner ring cover plate presses the cover plate downward. Since the inner ring cover plate is movably connected to the connecting rod, and the spring will move the inner ring cover plate on the connecting rod to facilitate flood drainage according to the water pressure. When the water pressure decreases, the inner ring cover plate returns to fit and connect with the bottom end of the outer ring cover plate. However, when the device is in use, when flood drainage is not required, pedestrians stepping on the manhole cover will cause the manhole cover to descend, which is likely to cause danger and reduce safety.

[0004] Therefore, it is necessary to provide a flood drainage well cover to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a flood drainage well cover, which solves the problem that pedestrians stepping on the manhole cover will cause the manhole cover to descend, resulting in danger and reducing safety.

[0006] To solve the above technical problems, a flood drainage well cover provided by the present invention includes:

[0007] An outer cover;

[0008] An inner cover, the inner cover is arranged on the inner side of the outer cover. Limiting cavities are respectively opened around the bottom of the inner cover. One side of the inner side of the limiting cavity is provided with a sliding cavity. One end of the inner side of the sliding cavity is fixedly installed with a fixing plate, and the other end of the inner side of the sliding cavity is fixedly installed with a limiting plate. A sliding rod is slidably connected to the inside of both the limiting plate and the fixing plate. A third spring is sleeved on the outer side of the sliding rod, and a baffle is fixedly installed on the outer side of the sliding rod.

[0009] Positioning holes are respectively opened around the inner side of the outer cover, and the positioning holes are arranged on one side of the sliding cavity;

[0010] A pushing block, the pushing block is slidably connected to the inner side of the limiting cavity. A fixing rod is fixedly installed at the bottom of the pushing block, and a water storage frame is fixedly installed at the bottom of the fixing rod. A second spring is sleeved on the outer side of the fixing rod, and the second spring is arranged on the inner side of the limiting cavity. A filter plate is fixedly installed at the top of the water storage frame, and a water leakage hole is opened at the bottom of the inner side of the water storage frame.

[0011] Preferably, the third spring is arranged between the fixing plate and the baffle, and the baffle is arranged on one side of the limiting plate.

[0012] Preferably, both ends of the bottom of the outer cover are fixedly installed with fixing frames, a telescopic rod is fixedly installed at the top of the fixing frame, the top of the telescopic rod is fixedly installed at the bottom of the inner cover, and a first spring is sleeved on the outer side of the telescopic rod.

[0013] Preferably, one end of the sliding rod is arranged on one side of the pushing block, and the water storage frame is arranged on the outer side of the telescopic rod.

[0014] Preferably, water outlet holes are opened inside both the inner cover and the outer cover, and the ground is arranged on the outer side of the outer cover.

[0015] Preferably, a positioning plate is fixedly installed on the outer side of the fixing frame, a sliding sleeve is arranged on the top of the positioning plate, and the sliding sleeve is slidably connected to the outer side of the fixing frame.

[0016] Preferably, a support frame is fixedly installed on one side of the sliding sleeve, and the top of the support frame is fixedly installed at the bottom of the inner cover.

[0017] Compared with the related art, a flood discharge and drainage manhole cover provided by the present invention has the following beneficial effects:

[0018] The present invention provides a flood discharge and drainage manhole cover. Through the cooperation of structures such as a limiting cavity, a sliding cavity, a fixing plate, a limiting plate, a sliding rod, a baffle, a third spring, a positioning hole, a water storage frame, a fixing rod, a water leakage hole, a pushing block, a second spring and a first spring, when in use, it can prevent when there is no rain and flood discharge is not required, when a pedestrian steps on the inner cover, causing the inner cover to suddenly move downward, thus causing danger and increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a first embodiment of a flood discharge and drainage manhole cover provided by the present invention;

[0020] Figure 2 is Figure 1 the schematic top view structure diagram of the water storage frame shown;

[0021] Figure 3For Figure 1 The enlarged schematic view of part A shown in

[0022] Figure 4 For Figure 1 The enlarged schematic view of part B shown in

[0023] Figure 5 For Figure 1 The enlarged schematic view of part C shown in

[0024] Figure 6 The structural schematic diagram of the second embodiment of a flood discharge and drainage well cover provided by the present invention.

[0025] Reference numerals in the figure: 1, ground; 2, outer cover; 21, water outlet hole; 22, inner cover; 23, fixing frame; 24, telescopic rod; 25, first spring; 3, water storage frame; 31, filter plate; 32, fixing rod; 33, water leakage hole; 35, pushing block; 36, second spring; 4, limiting cavity; 41, sliding cavity; 42, fixing plate; 43, limiting plate; 44, sliding rod; 45, baffle; 46, third spring; 47, positioning hole; 5, positioning plate; 51, sliding sleeve; 52, support frame. Detailed implementation manners

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] First embodiment

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein Figure 1 is the structural schematic diagram of the first embodiment of a flood discharge and drainage well cover provided by the present invention; Figure 2 For Figure 1 The top view structural schematic diagram of the water storage frame shown in Figure 3 For Figure 1 The enlarged schematic view of part A shown in Figure 4 For Figure 1 The enlarged schematic view of part B shown in Figure 5 For Figure 1 The enlarged schematic view of part C shown in. A flood discharge and drainage well cover includes: an outer cover 2;

[0029] Inner cover 22, the inner cover 22 is arranged on the inner side surface of the outer cover 2. Limiting cavities 4 are opened at the four circumferences of the bottom of the inner cover 22. A sliding cavity 41 is opened on one side of the inner side surface of the limiting cavity 4. A fixing plate 42 is fixedly installed at one end of the inner side surface of the sliding cavity 41. A limiting plate 43 is fixedly installed at the other end of the inner side surface of the sliding cavity 41. A sliding rod 44 is slidably connected to the interiors of both the limiting plate 43 and the fixing plate 42. A third spring 46 is sleeved on the outer side surface of the sliding rod 44. A baffle 45 is fixedly installed on the outer side surface of the sliding rod 44;

[0030] Positioning holes 47 are respectively opened at the four circumferences of the inner side surface of the outer cover 2. The positioning holes 47 are arranged on one side of the sliding cavity 41;

[0031] A pushing block 35 is slidably connected to the inner side surface of the limiting cavity 4. A fixing rod 32 is fixedly installed at the bottom of the pushing block 35. A water storage frame 3 is fixedly installed at the bottom of the fixing rod 32. A second spring 36 is sleeved on the outer side surface of the fixing rod 32. The second spring 36 is arranged on the inner side surface of the limiting cavity 4. A filter plate 31 is fixedly installed at the top of the water storage frame 3. Leakage holes 33 are opened at the bottom of the inner side surface of the water storage frame 3.

[0032] When in use through the filter plate 31, some leaves and impurities are prevented from entering the inner side surface of the water storage frame 3, thus causing blockage of the leakage holes 33 on the inner side surface of the water storage frame 3, thereby affecting the normal use of the device. And the filter plate 31 is in an inclined state, which is convenient for rainwater to flow onto the filter plate 31 and can wash the impurities to prevent them from accumulating on the filter plate 31;

[0033] The elasticity of the second spring 36 is less than the elasticity of the first spring 25.

[0034] The third spring 46 is arranged between the fixing plate 42 and the baffle 45. The baffle 45 is arranged on one side of the limiting plate 43.

[0035] Both ends of the bottom of the outer cover 2 are fixedly installed with fixing frames 23. A telescopic rod 24 is fixedly installed at the top of the fixing frame 23. The top of the telescopic rod 24 is fixedly installed on the bottom of the inner cover 22. A first spring 25 is sleeved on the outer side surface of the telescopic rod 24.

[0036] One end of the sliding rod 44 is arranged on one side of the pushing block 35. The water storage frame 3 is arranged on the outer side surface of the telescopic rod 24.

[0037] A limiting mechanism is arranged at the top of the inner side surface of the outer cover 2 to prevent the first spring 25 from pushing the inner cover 22 out of the inner side surface of the outer cover 2.

[0038] Both the inner cover 22 and the inner part of the outer cover 2 are provided with water outlet holes 21, and the outer side surface of the outer cover 2 is provided with the ground 1.

[0039] The working principle of a flood discharge and drainage manhole cover provided by the present invention is as follows:

[0040] When it rains, rainwater flows from the top to the bottom of the outer cover 2 and the inner cover 22 through the water outlet holes 21. At this time, some rainwater will flow to the top of the filter plate 31 and then flow into the inner side surface of the water storage frame 3. Since the water leakage holes 33 inside the water storage frame 3 are opened relatively small, the rainwater will not flow out quickly from the inner side surface of the water storage frame 3 and will accumulate inside the water storage frame 3. When the rainwater accumulates to half of the inside of the water storage frame 3, at this time, the second spring 36 will be completely contracted, and the pushing block 35 will move downward from one end of the sliding rod 44. At this time, the third spring 46 will push the sliding rod 44 toward one end of the limiting cavity 4, so that the other end completely moves out from the inner side surface of the positioning hole 47. At this time, the rainwater continues to accumulate inside the water storage frame 3. When the rainwater accumulates to two-thirds of the inside of the water storage frame 3, at this time, it will press the first spring 25 to contract, and at this time, the telescopic rod 24 will contract, so that the inner cover 22 moves downward from the inner side surface of the outer cover 2, enabling the rainwater to quickly flow out from the middle gap between the outer cover 2 and the inner cover 22 and accelerating the drainage speed;

[0041] When the rain stops, since no more rainwater enters the inner side surface of the water storage frame 3, at this time, the collected rainwater is slowly discharged through the water leakage holes 33 at the bottom inside the water storage frame 3. At this time, the first spring 25 will slowly extend upward. When the rainwater is less than two-thirds, the inner cover 22 will completely move to the inner side surface of the outer cover 2. When the rainwater continues to decrease, the second spring 36 will extend, causing the pushing block 35 to move upward. When all the rainwater has flowed out, at this time, the pushing block 35 will push the sliding rod 44, so that one end of it is inserted into the inner side surface of the positioning hole 47, thereby fixing the inner cover 22.

[0042] Compared with the related technology, a flood discharge and drainage manhole cover provided by the present invention has the following beneficial effects:

[0043] Through the cooperation of structures such as the limiting cavity 4, the sliding cavity 41, the fixing plate 42, the limiting plate 43, the sliding rod 44, the baffle plate 45, the third spring 46, the positioning hole 47, the water storage frame 3, the fixing rod 32, the water leakage holes 33, the pushing block 35, the second spring 36 and the first spring 25, when in use, it can prevent when there is no need for flood discharge on a non-rainy day, when a pedestrian steps on the inner cover 22, causing the inner cover 22 to suddenly move downward, thereby causing danger and increasing safety.

[0044] Second Embodiment

[0045] Please refer toFigure 6 , based on a flood discharge and drainage manhole cover provided by the first embodiment of the present application, another flood discharge and drainage manhole cover is proposed in the second embodiment of the present application. The second embodiment is only a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0046] Specifically, the difference of a flood discharge and drainage manhole cover provided by the second embodiment of the present application is that, for a flood discharge and drainage manhole cover, a positioning plate 5 is fixedly installed on the outer side surface of the fixing frame 23, a sliding sleeve 51 is arranged on the top of the positioning plate 5, and the sliding sleeve 51 is slidably connected to the outer side surface of the fixing frame 23.

[0047] One side of the sliding sleeve 51 is fixedly installed with a support frame 52, and the top of the support frame 52 is fixedly installed on the bottom of the inner cover 22.

[0048] The working principle of a flood discharge and drainage manhole cover provided by the present invention is as follows:

[0049] When in use, when the inner cover 22 moves downward due to the weight, it will drive the support frame 52 to move downward together. At this time, it drives the sliding sleeve 51 to slide on the outer side surface of the fixing frame 23. When the sliding sleeve 51 moves to the positioning plate 5, it will stop moving downward and limit the inner cover 22.

[0050] Compared with the related art, a flood discharge and drainage manhole cover provided by the present invention has the following beneficial effects:

[0051] Through the cooperation of structures such as the positioning plate 5, the sliding sleeve 51 and the support frame 52, when in use, the inner cover 22 can be limited to prevent the inner cover 22 from descending too much and affecting the normal passage of pedestrians.

[0052] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A flood discharge and drainage manhole cover, characterized in that, Comprising: An outer cover; An inner cover, the inner cover is arranged on the inner side of the outer cover, limiting cavities are respectively opened around the bottom of the inner cover, a sliding cavity is opened on one side of the inner side of the limiting cavity, a fixing plate is fixedly installed at one end of the inner side of the sliding cavity, a limiting plate is fixedly installed at the other end of the inner side of the sliding cavity, sliding rods are slidably connected inside the limiting plate and the fixing plate, a third spring is sleeved on the outer side of the sliding rod, and a baffle is fixedly installed on the outer side of the sliding rod; Positioning holes, the positioning holes are respectively opened around the inner side of the outer cover, and the positioning holes are arranged on one side of the sliding cavity; A pushing block, the pushing block is slidably connected to the inner side of the limiting cavity, a fixing rod is fixedly installed at the bottom of the pushing block, a water storage frame is fixedly installed at the bottom of the fixing rod, a second spring is sleeved on the outer side of the fixing rod, the second spring is arranged on the inner side of the limiting cavity, a filter plate is fixedly installed at the top of the water storage frame, and a water leakage hole is opened at the bottom of the inner side of the water storage frame; The third spring is arranged between the fixing plate and the baffle, and the baffle is arranged on one side of the limiting plate; Fixing frames are fixedly installed at both ends of the bottom of the outer cover, telescopic rods are fixedly installed at the tops of the fixing frames, the tops of the telescopic rods are fixedly installed at the bottom of the inner cover, and a first spring is sleeved on the outer side of the telescopic rod; One end of the sliding rod is arranged on one side of the pushing block, and the water storage frame is arranged on the outer side of the telescopic rod; Water outlet holes are respectively opened inside the inner cover and the outer cover, and the ground is arranged on the outer side of the outer cover; A positioning plate is fixedly installed on the outer side of the fixing frame, a sliding sleeve is arranged at the top of the positioning plate, and the sliding sleeve is slidably connected to the outer side of the fixing frame.

2. The flood discharge and drainage manhole cover according to claim 1, characterized in that, A support frame is fixedly installed on one side of the sliding sleeve, and the top of the support frame is fixedly installed at the bottom of the inner cover.

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