CN108729530B

CN108729530B - Manhole cover

Info

Publication number: CN108729530B
Application number: CN201710270134.9A
Authority: CN
Inventors: 蔡岱君
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-24
Filing date: 2017-04-24
Publication date: 2020-02-07
Anticipated expiration: 2037-04-24
Also published as: CN108729530A

Abstract

The utility model provides an underground basin lid, is fit for the suit in the top of a infiltration well, and contains a surrounding wall, and one with this surrounding wall combination the abrupt wall that encircles, should have at least one side row of holes around the wall, this at least one side row of holes has a bottom edge, and this abrupt wall and this surrounding wall define a water level regulating chamber jointly, and have a drainage unit, this drainage unit has at least one first drainage hole, this at least one first drainage hole has a lower edge, this lower edge is higher than this bottom edge of this at least one side row of holes. Utilize to set up the side round of escape and the first drainage hole that has the difference in height on this pubic basin lid, can make this pubic basin lid can adjust the rivers direction according to the flow direction of the high change liquid of the water level of the indoor liquid of this water level control of inflow to the dispersion effect that has the preferred.

Description

Manhole cover

Technical Field

The invention relates to a basin cover, in particular to a manhole basin cover suitable for being installed on a permeable manhole.

Background

The conventional pit is generally buried under the ground surface and used for collecting rainwater or sewage, and since the pit is generally vertically buried under the ground surface, the pit is applied to the field of irrigation and drainage by an operator, and since the pit has an effect of allowing liquid to permeate to the side, the pit is also called as a permeable pit.

Referring to fig. 1, there is shown a perspective view of a conventional manhole cover 9 adapted to fit over a permeable manhole 90, the permeable manhole 90 having a permeable wall 901 with a dense mesh and a permeable passage 902 defined by the permeable wall 901. The conventional manhole cover 9 comprises a horizontal cover plate 91, and a surrounding wall 92 extending downward from the periphery of the cover plate 91 and sleeved over the infiltration manhole 90, wherein the cover plate 91 has a plurality of elongated drainage holes 911, and a plurality of ribs 912 respectively located between every two adjacent drainage holes 911. When liquid such as rainwater and the like flows through the manhole cover 9, impurities can be clamped on the ribs 912, the liquid flows into the permeation channel 902 of the permeation manhole 90 through the drainage holes 911, and the liquid can permeate and diffuse from the meshes of the permeation manhole wall 901 to the side edge due to the arrangement of the meshes of the permeation manhole wall 901 of the permeation manhole 90, so that the purpose of wetting the surrounding soil is achieved through the cooperation of the structures.

Present pub basin lid 9 is when using, though can filter debris and let liquid pass through, but through this pub basin lid 9's liquid, only down fall this infiltration passageway 902 in, again toward the darker position infiltration of this soil horizon, that is to say, present pub basin lid 9 is except not having the function of adjusting the liquid flow direction, also can't let the not co-altitude region of the even dispersion of liquid to this soil horizon, if the pub basin lid 9 of this kind of structure is used in the field of irrigating or drainage, can cause the not good problem of irrigation and drainage effect.

Disclosure of Invention

It is an object of the present invention to provide a vulval basin lid which overcomes at least one of the disadvantages of the prior art.

The manhole cover of the present invention can be sleeved on a permeable manhole and comprises a surrounding wall and a convex wall combined with the surrounding wall, wherein the surrounding wall is provided with at least one side row hole, the at least one side row hole is provided with a bottom edge, the convex wall and the surrounding wall define a water level adjusting chamber together, the convex wall is provided with a drainage unit, the drainage unit is provided with at least one first drainage hole, the at least one first drainage hole is provided with a lower edge, and the lower edge is higher than the bottom edge of the at least one side row hole.

The protruding arch wall is also provided with a flat wall part and an inclined wall part which is inclined downwards and around from the flat wall part, and the drainage unit is provided with a plurality of first drainage holes arranged on the inclined wall part.

The drain unit of the manhole cover of the present invention further includes a second drain hole formed in the flat wall portion and having a diameter larger than that of the first drain hole.

The manhole cover of the present invention has a plurality of side holes, each of the side holes has a top edge, and the drainage unit is disposed between the top edge and the bottom edge of each of the side holes.

The manhole cover of the present invention, wherein the surrounding wall further has a mounting hole higher than the top edge of each side row of holes.

The invention relates to a cover for a manhole, wherein the cover further comprises a mounting ring wall which is mounted above the permeable manhole and protrudes from the surrounding wall

The invention has the following effects: the lateral drain hole with the height difference and the drainage unit are arranged on the manhole cover, so that the flow direction of liquid can be changed according to the height of the water level of the liquid flowing into the water level adjusting chamber, the water flow direction can be adjusted by the manhole cover, and a better dispersion effect is achieved.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a state of use reference drawing of a prior art vulval basin cover illustrating the vulval basin cover nested on a permeable vulval well;

FIG. 2 is a perspective view of one embodiment of the vulval basin lid of the present invention;

FIG. 3 is a schematic cross-sectional view of the embodiment illustrating the relationship of the vulvar basin cover to a permeate vulva and a drain pipe;

fig. 4 is a state-of-use reference diagram of the embodiment, illustrating the relative relationship of the vulvar basin cover, the infiltration vulvar well and a tube cavity.

Detailed Description

Referring to fig. 2, 3 and 4, an embodiment of the manhole cover 1 of the present invention is adapted to be fitted over a permeable manhole 2 and embedded in a cavity 32 of a soil layer 3 together with the permeable manhole 2, and if necessary, a discharge pipe 4 may be fitted to the manhole cover 1, the structure of the permeable manhole 2 is not particularly limited as long as it allows the liquid to be dispersed and permeated to the side, and in this embodiment, the permeable manhole 2 is vertically embedded in the cavity 32 of the soil layer 3 and has a permeable well wall 21 with a hollow and densely meshed shape, and a permeable passage 22 defined by the permeable well wall 21, the permeable passage 22 has a fitting end 221 adjacent to a ground surface 31 of the soil layer 3.

The manhole cover 1 of this embodiment is installed around the end 221 of the permeable pit 2 and is flush with the surface 31 of the soil layer 3. The manhole cover 1 comprises a hollow annular surrounding wall 11, a mounting ring wall 12 horizontally protruding from the top edge of the surrounding wall 11 in a radial direction, and a protruding wall 13 combined between the surrounding walls 11 and adjacent to the bottom edge, wherein the surrounding wall 11 and the protruding wall 13 together define a water level adjusting chamber 14 with an upward opening.

The surrounding wall 11 has an inner annular surface 111 facing the water level adjustment chamber 14, an outer annular surface 112 surrounding the outer annular surface 111, and a plurality of side rows 113 and a plurality of mounting holes 110 penetrating the inner annular surface 111 and the outer annular surface 112, the side rows 113 are not limited in form, in this embodiment, the side rows 113 are elongated and equiangularly surround the water level adjustment chamber 14, and each side row 113 has a bottom edge 114 adjacent to the convex wall 13 and a top edge 115 adjacent to the mounting annular wall 12. Specifically, in the present embodiment, assuming that the cross section of the surrounding wall 11 is circular, the outer diameter of the surrounding wall is 74.5 mm, and the height of the surrounding wall is 65 mm, the number of the side row holes 113 is preferably ten, and each of the side row holes 113 has a width of 3 mm and a height of 30 mm. The mounting hole 110 is provided for the discharge pipe 4 to be mounted adjacent to the mounting ring wall 12, that is, the mounting hole 110 is provided at a position below the mounting ring wall 12 and between the top edges 115 of each side row hole 113.

The form of the convex wall 13 of the present invention is not particularly limited, and in the present embodiment, the convex wall 13 has a flat wall portion 131 which is located in the middle and horizontal direction, an inclined wall portion 132 which is annular and gradually inclined downward from the outer periphery of the flat wall portion 131 toward the surrounding wall 11, and a drainage unit 130. The drainage unit 130 is disposed between the top edge 115 and the bottom edge 114 of each side drainage hole 113, and has a plurality of first drainage holes 133 equally spaced at an angle and provided on the inclined wall portion 132, and a second drainage hole 134 penetrating the flat wall portion 131, each of the first drainage holes 133 having a lower edge 135.

The shape of the first drainage holes 133 of the present embodiment is not particularly limited, and may be the same or different, that is, the shape of the first drainage holes 133 may be a circle, a rectangle, a triangle, an ellipse, or other shapes besides the circle disclosed in the embodiments, and the lower edge 135 of each first drainage hole 133 is slightly higher than the bottom edge 114 of each side drainage hole 113. And the second water discharge hole 134 has a larger diameter than the first water discharge hole 133. Specifically, assuming that the inner diameter of the surrounding wall 11 is 72 mm, the diameter of the flat wall portion 131 is 25 mm, and the height is 15 mm, the aperture of the second drainage hole 134 is preferably 12.7 mm. The number of the first drain holes 133 is ten, and the aperture of each first drain hole 133 is preferably 3 mm.

When the manhole cover 1 of this embodiment is used, the vertical pipe cavity 32 is chiseled on the surface 31 of the soil layer 3, the permeable manhole 2 is buried in the pipe cavity 32, and then the manhole cover 1 is fitted over the fitting end 221 of the permeable manhole 2, so that the assembly can be completed. In this embodiment, in addition to mounting the discharge pipe 4 on the mounting hole 110, the mounting hole 110 may be closed by a film. After being buried, the top edge of the annular wall 12 of the basin cover 1 is approximately flush with the ground surface 31 of the soil layer 3, and for the purpose of filtering water, substances such as gravel, broken stones and the like which can block impurities and allow liquid to pass through are placed in the water level adjusting chamber 14 of the basin cover 1 when in use.

When a liquid such as rainwater flows into the water level adjustment chamber 14 of the manhole cover 1, since the bottom edge 114 of each side discharge hole 113 is slightly lower than the lower edge 135 of each first drain hole 133, when the amount of the liquid flowing in is small, the water first flows out of the manhole cover 1 through the side discharge holes 113 and finally permeates into the soil layer 3 through the permeable well wall 21 of the permeable manhole 2, and since the manhole cover 2 is adjacent to the ground surface 31 of the soil layer 3, the upper region of the soil layer 3 adjacent to the ground surface 31 is first wetted by the liquid in the case of a small amount of the liquid inflow.

When the amount of the liquid flowing in increases and causes a part of the liquid to be stagnated in the water level adjusting chamber 14 of the manhole cover 1, in case that the stagnant water level is not higher than the top surface of the flat wall portion 131, the liquid has a penetrating effect on the deep area of the soil layer 3 since the liquid falls to the bottom of the penetration channel 22 and penetrates to the side because the liquid flows into the penetration channel 22 of the penetration pit 2 through the first drain hole 133 and finally penetrates into the soil layer 3 through the penetration well wall 21 of the penetration pit 2, except that the liquid continuously penetrates into the soil layer 3 through the side drain hole 113 via the penetration pit 2.

When the liquid level staying in the water level adjustment chamber 14 is continuously increased and is higher than the flat wall portion 131 of the convex wall 13, the liquid can flow into the penetration passage 22 from the second drain hole 134 and the first drain hole 133 in a large amount. Since the second drainage holes 134 have a larger diameter than the first drainage holes 133, most of the liquid will drain into the penetration channel 22 of the infiltration pit 2, except that a small portion of the water is retained to continuously permeate toward the region of the soil layer 3 adjacent to the ground surface 31. When the liquid level staying in the water level adjusting chamber 14 is higher than the mounting hole 110, the liquid can be discharged to a remote place through the discharge pipe 4, so that the manhole cover 1 of the present invention can change the flow direction of the liquid according to the water level height of the liquid flowing into the water level adjusting chamber 14, and can also adjust the water flow direction through the manhole cover 1, thereby producing a better dispersion effect.

Claims

1. A manhole cover adapted to fit over a permeable manhole and comprising a surrounding wall, wherein:

this manhole basin lid still contains one and should define out the abrupt wall of a water level control room jointly around the wall, should have at least one side round hole around the wall, and this at least one side round hole has a bottom edge, and this abrupt wall has a drainage unit, and this drainage unit has at least one first drainage hole, and this at least one first drainage hole has a lower edge, and this lower edge is higher than this bottom edge of this at least one side round hole.

2. The manhole cover according to claim 1, wherein: the convex wall also has a flat wall part and an inclined wall part which is downward from the flat wall part and inclines to the periphery, and the drainage unit has a plurality of first drainage holes arranged on the inclined wall part.

3. The manhole cover according to claim 2, wherein: the drainage unit also has a second drainage hole which is provided on the flat wall portion and has a larger diameter than the first drainage hole.

4. The manhole cover according to claim 3, wherein: the surrounding wall is provided with a plurality of side row holes, each side row hole is also provided with a top edge, and the drainage unit is arranged between the top edge and the bottom edge of each side row hole.

5. The manhole cover according to claim 4, wherein: the surrounding wall also has a mounting hole that is higher than the top edge of each side row of holes.

6. The manhole cover according to claim 1, wherein: the at least one side row hole has a top edge, and the first drain hole of the drain unit is between the top edge and the bottom edge of the at least one side row hole.

7. The manhole cover according to any one of claims 1 to 6, wherein: the manhole cover also includes a mounting ring wall mounted above the permeable manhole and projecting from the surrounding wall.