Drainage well lid capable of isolating peculiar smell

Abstract

The utility model relates to the technical field of well lids, in particular to a drainage well lid capable of isolating peculiar smell. Comprising a mounting base, a well lid body and a shaft, the shaft is mounted on the inner side of the mounting base in an embedded mode, the well lid body is mounted on the top in the shaft in an embedded mode, one end of the well lid body is hinged to the mounting base, a bottom plate is fixedly connected to the bottom in the shaft, and a plurality of water outlet holes are formed in the bottom plate; a floating plate is slidably mounted above the bottom plate through a guide rod, a sealing column matched with the water outlet hole is fixedly connected to the bottom of the floating plate, and the end, away from the bottom plate, of the guide rod is fixedly connected with the bottom of the well lid body through a limiting column; according to the utility model, the floating plate, the guide rod, the sealing column and other structures are matched with one another, so that the sealing column seals the water outlet hole and prevents peculiar smell from flowing out in rainy days, rainwater on the floating plate is jacked up in rainy days, so that the sealing column is separated from the drainage hole and the rainwater flows into the water channel, and when the rainwater is completely drained, the sealing column seals the floating plate again.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a drainage manhole cover capable of isolating odors. Background Art

[0002] A manhole cover is a covering that covers the openings of drainage wells on both sides of the road. It generally adopts a circular structure and can be used to prevent people or objects from falling. Manhole covers play an important role in clearing rainwater on the road. Generally, water outlet holes are opened on the manhole covers to allow the accumulated water on both sides of the road to be smoothly discharged into the sewer through the water outlet holes, preventing water from accumulating on the road surface and affecting the normal operation of traffic.

[0003] In the prior art, a lot of silt and impurities will accumulate in the internal pipes of the sewers after long-term use. The accumulation of these silt and impurities is prone to produce odor in a dark and humid environment. The bottom of the existing drainage manhole cover is not equipped with a mechanism to isolate the odor. Especially when the weather is clear, the odor is easy to be emitted along the water outlet, causing a certain impact on the environment and pedestrians on the road. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a drainage manhole cover capable of isolating odors, which can not only filter impurities in rainwater but also effectively prevent the discharge of odors in the sewer without affecting normal drainage.

[0005] In order to achieve the above technical objectives, the utility model proposes the following technical solutions: a drainage manhole cover that can isolate odors, comprising a mounting base, a manhole cover body and a wellbore, the wellbore being embedded in the inner side of the mounting base, the manhole cover body being embedded in the top of the wellbore, and one end of the manhole cover body being hinged to the mounting base, a bottom plate being fixedly connected to the bottom of the wellbore, a plurality of arc-shaped grooves being provided on the bottom plate, water outlet holes being provided at the bottom of the arc-shaped grooves, a floating plate being slidably installed above the bottom plate through a guide rod, a sealing column matching the water outlet hole being fixedly connected to the bottom of the floating plate, an end of the guide rod away from the bottom plate being fixedly connected to the bottom of the manhole cover body through a limiting column, a plurality of drainage holes being circumferentially provided on the outer peripheral wall of the manhole cover body, and the drainage holes are located at the outer periphery of the floating plate.

[0006] Furthermore, one end of the guide rod away from the bottom plate is fixedly connected to a limiting column, one end of the limiting column is in conflict with the bottom of the manhole cover body, and the diameter of the limiting column is greater than the diameter of the guide rod.

[0007] Furthermore, an annular filter is fixedly connected to the upper portion of the wellbore, and a baffle is fixedly connected to the top of the inner ring of the annular filter.

[0008] Furthermore, the periphery of the bottom plate and the middle of the floating plate are all in an upwardly convex state.

[0009] Furthermore, a plurality of anti-slip grooves are evenly arranged on the outer wall of the manhole cover body.

[0010] Furthermore, the number of the guide rods is not less than 2, and the guide rods are evenly distributed on the floating board.

[0011] Compared with the prior art, the beneficial effects produced by the utility model are: the utility model has a novel structure, ingenious conception, simple and convenient operation, and has the following advantages compared with the prior art: the utility model can remove impurities in rainwater through an annular filter to prevent impurities from clogging and rotting in the sewer, and increase the odor in the sewer; through the cooperation of structures such as the floating plate, the guide rod, and the sealing column, in rainless weather, the sealing column seals the water outlet to prevent odor from escaping into the sewer; in rainy weather, the floating plate is lifted up along the guide rod under the buoyancy of rainwater, so that the sealing column is separated from the drainage hole, and the rainwater enters the sewer along the drainage hole. When the water level on the bottom plate drops, the sealing column will seal the water outlet again. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0015] In the figure, 1. installation base; 2. manhole cover body; 3. manhole; 4. bottom plate; 5. arc groove; 6. water outlet; 7. guide rod; 8. floating plate; 9. sealing column; 10. drainage hole; 11. limiting column; 12. annular filter; 13. baffle; 14. anti-slip pattern. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0017] like Figure 1-3As shown, the utility model provides a drainage manhole cover capable of isolating odor, comprising a mounting base 1, a manhole cover body 2 and a manhole 3, wherein the manhole 3 is embeddedly mounted on the inner side of the mounting base 1, the manhole cover body 2 is embeddedly mounted on the top of the manhole 3, and one end of the manhole cover body 2 is hinged to the mounting base 1, a bottom plate 4 is fixedly connected to the bottom of the manhole 3, a plurality of arc grooves 5 are formed on the bottom of the arc grooves, water outlet holes 6 are formed at the bottom of the bottom plate 4, and a guide is provided on the top of the bottom plate 4. A floating plate 8 is slidably mounted on the rod 7, and the density of the floating plate 8 is less than that of water. A sealing column 9 adapted to the arc groove 5 is fixedly connected to the bottom of the floating plate 8, and the sealing column 8 is embedded in the arc groove 5. The bottom of the sealing column 8 seals the water outlet 6. A plurality of drainage holes 10 are circumferentially opened on the outer peripheral wall of the manhole cover body 2, and the drainage holes 10 are located on the outer periphery of the floating plate 8. When rainwater falls onto the bottom plate 4 from the drainage holes 10, the rainwater will not fall onto the floating plate 8, thereby increasing the pressure of the floating plate 8.

[0018] like Figure 1 and 2 As shown, the mounting base 1 is an annular structure, which is fixed at the entrance of the sewer, so as to facilitate the installation and fixing of the shaft 3. The floating plate 8 is slidably installed in the guide rod 7. The floating plate 8 can be made of a foam board with an inner layer and a layer of cement mortar wrapped on the outer layer of the foam board. The density of the floating plate 8 is less than that of water, so as to ensure that the floating plate 8 can float when the rainwater reaches a certain water level; the arc groove 5 can increase the contact area between the sealing column 9 and the bottom plate 4 when the sealing column 9 seals the water outlet 6, thereby increasing the sealing performance; when it is not raining, under the gravity of the floating plate 8 itself, the sealing column 9 will seal the water outlet 6, so as to effectively prevent the discharge of odor. When it is raining, rainwater will enter the bottom plate 4 along the drainage hole 10. Since the sealing column 9 is a columnar structure, When the sealing column 9 seals the water outlet 6, the sealing column 9 will not completely enter the water outlet 6, so that there is a certain gap between the floating plate 8 and the bottom plate 4. After the rainwater enters the bottom plate 4, it will flow into the gap between the floating plate 8 and the bottom plate 4. When the water level on the bottom plate 4 exceeds the gap between the floating plate 8 and the bottom plate 4, the floating plate 8 will float up, and the sealing column 9 will separate from the water outlet 6, and the rainwater will enter the sewer along the water outlet 6. In the process of flowing into the sewer, the rainwater also seals the water outlet 6. When the amount of rainwater slowly decreases, the water level on the bottom plate 4 decreases, and the sealing column 9 will gradually seal the water outlet 6 again. At this time, a small amount of rainwater will remain on the bottom plate 4. When it is not raining, the remaining rainwater will slowly evaporate.

[0019] One end of the guide rod 7 away from the bottom plate 4 is fixedly connected to a limiting column 11, and one end of the limiting column 11 is in conflict with the bottom of the manhole cover body 2. The diameter of the limiting column 11 is greater than the diameter of the guide rod 7.

[0020] like Figure 2As shown in Figure 3, the limiting column 11 is used to limit the floating board 8 to prevent the floating board 8 from floating up too high when the amount of rainwater is heavy.

[0021] An annular filter screen 12 is fixedly connected to the upper portion of the wellbore 3 , and a baffle plate 13 is fixedly connected to the top of the inner ring of the annular filter screen 12 .

[0022] like Figure 2 As shown, the outer ring of the annular filter 12 is fixedly connected to the inner wall of the wellbore 3, and the baffle 13 can prevent rainwater from flowing into the floating plate 8. The annular filter 12 is used to filter impurities in the rainwater to prevent impurities from entering the sewer, causing sewer blockage or increasing odor concentration. When cleaning the impurities on the annular filter 12, it is only necessary to open the well cover body 2.

[0023] The periphery of the bottom plate 4 and the middle of the floating plate 8 are all in an upwardly convex state.

[0024] like Figure 2 As shown, the bottom plate 2 as a whole is concave in the middle and convex around, wherein the water outlet holes 6 are all located in the concave part of the bottom plate 4, so that rainwater can be gathered in the concave part of the bottom plate 4, ensuring that the floating plate 8 can float even when the amount of rainwater is small, directly reducing the residual amount of rainwater; the middle part of the floating plate 8 is convex, which can reduce the accumulation of rainwater on the floating plate 8.

[0025] A plurality of anti-slip patterns 14 are evenly arranged on the outer wall of the manhole cover body 2 .

[0026] The number of the guide rods 7 is no less than 2, and the guide rods 7 are evenly distributed on the floating plate 8 .

[0027] like Figure 2 As shown, a plurality of guide rods 7 can limit the floating board 8 and maintain the balance of the floating board 8, ensuring that the floating board 7 can just fall into the arc groove 5 and seal the water outlet 6 at the bottom of the arc groove 5.

[0028] like Figure 1 As shown, the anti-skid pattern 14 can increase the friction between the motor vehicle or the slope and the manhole cover body 2 .

[0029] Principle of use: When the utility model is used in non-rainy weather, under the gravity of the floating board 8 itself, the sealing column 9 at the bottom of the floating board 8 will seal the water outlet 6 to prevent the discharge of odor in the sewer; in rainy weather, rainwater is filtered along the drainage hole 10 through the annular filter screen 12, and the filtered rainwater falls on the bottom plate 4 and flows to the middle of the bottom plate 4. The rainwater will slowly push the sealing column 10 out of the water outlet 6. When the water level in the middle of the bottom plate 4 is higher than the gap between the floating board 8 and the bottom plate 4, the floating board 8 completely floats up, and the rainwater will be discharged along the water outlet 6. When the amount of rainwater on the bottom plate 4 slowly decreases, the sealing column 9 will gradually seal the water outlet 6 again. At this time, a small amount of rainwater will remain on the bottom plate 4. When it is not raining, the remaining rainwater will slowly evaporate.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A drainage manhole cover capable of isolating odor, characterized in that: The invention comprises a mounting base (1), a manhole cover body (2) and a manhole (3), wherein the manhole (3) is embedded in the inner side of the mounting base (1), the manhole cover body (2) is embedded in the top of the manhole (3), and one end of the manhole cover body (2) is hinged to the mounting base (1), a bottom plate (4) is fixedly connected to the bottom of the manhole (3), a plurality of arc-shaped grooves (5) are provided on the bottom plate (4), a water outlet hole (6) is provided at the bottom of each of the arc-shaped grooves (5), a floating plate (8) is slidably mounted above the bottom plate (4) via a guide rod (7), the density of the floating plate (8) is less than that of water, a sealing column (9) matched with the water outlet hole (6) is fixedly connected to the bottom of the floating plate (8), and a plurality of drainage holes (10) are circumferentially provided on the outer peripheral wall of the manhole cover body (2), and the drainage holes (10) are located at the outer periphery of the floating plate (8).

2. The odor-isolating drainage manhole cover according to claim 1, characterized in that: One end of the guide rod (7) away from the bottom plate (4) is fixedly connected to a limiting column (11), one end of the limiting column (11) contacts the bottom of the manhole cover body (2), and the diameter of the limiting column (11) is greater than the diameter of the guide rod (7).

3. The odor-isolating drainage manhole cover according to claim 1, characterized in that: An annular filter screen (12) is fixedly connected to the upper portion of the wellbore (3), and a baffle plate (13) is fixedly connected to the top of the inner ring of the annular filter screen (12).

4. The odor-isolating drainage manhole cover according to claim 1, characterized in that: The periphery of the bottom plate (4) and the middle of the floating plate (8) are all in an upwardly convex state.

5. The odor-isolating drainage manhole cover according to claim 1, characterized in that: A plurality of anti-slip grooves (14) are evenly arranged on the outer wall of the manhole cover body (2).

6. The odor-isolating drainage manhole cover according to claim 1, characterized in that: The number of the guide rods (7) is no less than 2, and the guide rods (7) are evenly distributed on the floating plate (8).

Images