KR101954065B1 - Environment Friendly Odor Prevention Device of Sewer Manhole - Google Patents

Abstract

The present invention relates to an odor prevention device for an eco-friendly sewer manhole, automatically opened in case of rain to smoothly drain rainwater and prevent odor pollution, wherein a flow rate control valve (50) comprises: an inner shell (51) installed on a drainage hole (41); an inner slot (52) formed at a predetermined interval along the outer circumferential surface of the inner shell (51); an outer shell (53) coming in close contact with the outer side of the inner shell (51); an outer slot (54) formed at a predetermined interval along the outer circumferential surface of the outer shell (53) and coming in contact with the inner slot (52) while being overlapped with the inner slot; and a fixing bolt (55) for stopping rotation of the outer shell (53).

Description

(Environment Friendly Odor Prevention Device of Sewer Manhole)

More particularly, the present invention relates to an apparatus for preventing malodor of a manhole for an environmentally friendly sewage, more specifically, it automatically opens rainwater and smoothly discharges rainwater, and automatically closes when rain is stopped, The present invention relates to an odor prevention apparatus for an environmentally friendly sewage manhole, which can prevent odor pollution.

Generally, the sewage pipe installed in the ground has a problem of polluting the surrounding air environment because the bad odor gas generated in the sewage pipe is discharged into the air through the manhole because the sewage pipe is made of the combined type in which the storm water and the sewage are introduced together.

In order to solve such inconvenience, Korean Patent Registration No. 10-0994795 (published on Nov. 16, 2010) discloses a manhole provided with a dish-shaped reverse osmosis membrane for air discharge for gas discharge and an automatic door opener for draining rainwater Technique 1 has been proposed.

However, according to the conventional art 1, since the rainwater is drained only through the automatic opening / closing port located at the center of the dish shaped backwash, rainwater flows back to the manhole cover when the rainfall amount increases.

As another example, Korean Utility Model Registration No. 20-0483434 (Published on May 31, 2017.) discloses a manhole cover having an excellent moving path inclined downward toward an excellent discharge passage formed at the center of a manhole cover, There has been proposed a prior art 2 in which a cylindrical buoyant body for opening and closing is provided on the superior discharge passage.

According to the prior art 2 described above, when the rainwater rushes through the storm passage formed on the manhole cover in the rainy season, the storm drainage passage automatically opens due to floating of the buoyant body to drain the rainwater. Normally, Thereby preventing the outflow of the malodorous gas.

However, since the buoyant body and the storm passage are exposed to the outside, the conventional art 2 has a problem that various foreign substances accumulate in the storm passage during the passage, causing malfunctions in the buoyant body.

Particularly, the buoyant body is inevitably made lighter in order to float in the water. Due to this, it is easily shaken even in weak winds, and the discharge passage is often opened. In this process, the odor gas remaining in the manhole is discharged, .

In addition, since the conventional art 2 is designed to discharge rainwater through a narrow storm drain passage formed at the center of the manhole cover, there is a problem that backflow phenomenon occurs when the amount of rainfall increases in the rainy season.

Korean Patent Registration No. 10-0994795 (Published on Nov. 16, 2010) Korean Registered Utility Model No. 20-0483434 (Published on May 31, 2017)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an odor prevention apparatus for an environmentally friendly sewage manhole capable of smoothly discharging rainwater in a rainfall and effectively blocking odor gas generated from a manhole .

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In order to accomplish the object of the present invention, there is provided an environmentally friendly sewage manhole odor prevention device, comprising: a shielding disk installed on a frame; An opening disposed circularly on the shielding disc; A rotating shaft which is radially installed on the shielding disk and which traverses the opening; A flap which opens and closes the opening of the opening while being rotated around the rotation axis; A guide sleeve formed at the center of the shielding disc; A lifting and lowering container guided in a vertical direction by a guide sleeve and containing rainwater flowing through the manhole cover; A drain hole formed in the bottom plate of the elevating vessel for discharging the rainwater flowing into the elevating vessel to the manhole; A flow control valve for regulating the flow rate of the rainwater discharged through the drain hole; A circular blade formed on an outer peripheral surface of the lifting container; A lower sheet formed on an outer peripheral surface of the guide sleeve; A slide shaft passing through the circular wing and lower sheet; An upper seat provided at an upper end of the slide shaft; A closing spring installed between the lower seat and the upper seat to lift up the lift container; A connection arm radially formed on an outer peripheral surface of the lifting container corresponding to each of the flaps; And a connecting rod connecting the connection arm and the flap in a clevis shape,
The flow control valve includes: an inner cylinder installed in a drain hole; An inner slot formed at regular intervals along an outer circumferential surface of the inner tube; An outer tube closely attached to the outer side of the inner tube; An outer slot formed at regular intervals along an outer circumferential surface of the outer cylinder, the outer slot being overlapped with the inner slot; And a fixing bolt for stopping rotation of the outer cylinder.

The present invention relates to a shielding disc mounted on a frame; An opening disposed circularly on the shielding disc; A rotating shaft which is radially installed on the shielding disk and which traverses the opening; A flap which opens and closes the opening of the opening while being rotated around the rotation axis; A guide sleeve formed at the center of the shielding disc; A lifting and lowering container guided in a vertical direction by a guide sleeve and containing rainwater flowing through the manhole cover; A drain hole formed in the bottom plate of the elevating vessel for discharging the rainwater flowing into the elevating vessel to the manhole; A flow control valve for regulating the flow rate of the rainwater discharged through the drain hole; A circular blade formed on an outer peripheral surface of the lifting container; A lower sheet formed on an outer peripheral surface of the guide sleeve; A slide shaft passing through the circular wing and lower sheet; An upper seat provided at an upper end of the slide shaft; A closing spring installed between the lower seat and the upper seat to lift up the lift container; A connection arm radially formed on an outer peripheral surface of the lifting container corresponding to each of the flaps; And a connecting rod connecting the connection arm and the flap in a clevis shape,
And a one-way latching jaw which is formed in the form of a half-cut in each of the opening and the edge of the flap, and which meets each other when the flap is closed.

The present invention relates to a shielding disc mounted on a frame; An opening disposed circularly on the shielding disc; A rotating shaft which is radially installed on the shielding disk and which traverses the opening; A flap which opens and closes the opening of the opening while being rotated around the rotation axis; A guide sleeve formed at the center of the shielding disc; A lifting and lowering container guided in a vertical direction by a guide sleeve and containing rainwater flowing through the manhole cover; A drain hole formed in the bottom plate of the elevating vessel for discharging the rainwater flowing into the elevating vessel to the manhole; A flow control valve for regulating the flow rate of the rainwater discharged through the drain hole; A circular blade formed on an outer peripheral surface of the lifting container; A lower sheet formed on an outer peripheral surface of the guide sleeve; A slide shaft passing through the circular wing and lower sheet; An upper seat provided at an upper end of the slide shaft; A closing spring installed between the lower seat and the upper seat to lift up the lift container; A connection arm radially formed on an outer peripheral surface of the lifting container corresponding to each of the flaps; And a connecting rod connecting the connection arm and the flap in a clevis shape,
An annular engaging jaw formed on an inner peripheral surface of the frame; An annular side wall formed along an edge of the shielding disc; And a pressing portion which is formed at the upper end of the side wall and is pressed between the manhole cover and the annular stopping jaw.

The present invention relates to an image forming apparatus comprising a first shaft support portion formed radially along a corner portion where a sidewall and a shielding disc meet, and supporting one end of a rotation shaft; A first pin hole extending from the outer circumferential surface of the side wall to the opening through the center of the first shaft support and inserted into the rotation shaft; A second shaft portion formed radially along an edge of the opening facing the first shaft portion and supporting the other end of the shaft; A second pin hole formed at the center of the second shaft portion and having the other end of the rotation shaft inserted therein; A hub positioned in a straight line on the first and second axially extending portions and formed in the center of rotation of the flap; And a third pin hole formed at the center of the hub for inserting the rotary shaft.

As described above, according to the present invention, when the rainy season rainfall amount increases and the amount of the rainwater 22 accumulated in the lift container 40 increases, the lift container 40 is automatically lowered by the weight of the rainwater 22, Since the plurality of opening openings 31 are configured to be opened at the same time, the drainage of the rainwater 22 can be smoothly performed.

When the amount of the rainwater 22 drained to the manhole 24 through the flow rate control valve 50 is larger than the inflow amount of the rainwater 22 flowing into the lift container 40 after the rain is over and the weight of the rainwater 22 gradually decreases The elastic restoring force of the closing spring 45 is larger than the force for lowering the lifting container 40. At this time, the lifting container 40 is automatically lifted by the closing spring 45, It is possible to prevent the malodor gas generated in the manhole 24 from leaking through the opening 31. In this case,

A part of the malodor gas in the manhole 24 in the state in which the opening 31 is closed by the flap 33 flows through the inner slot 52 and the outer slot 54 constituting the flow control valve 50 It is possible to prevent an increase in pressure inside the manhole 24 due to the malodorous gas and the risk of explosion.

Since the slide shaft 43 that is lifted and lowered together with the lifting and lowering container 40 when the lifting and lowering container 40 is lifted or raised is configured to be guided in the up and down direction by the lower sheet 35, So that the operation of the flap 33 following the movement of the lifting container 40 can be always kept constant.

Since the overlapping area of the inner slot 52 and the outer slot 54 can be varied by releasing the fixing bolt 55 constituting the flow control valve 50 and rotating the outer cylinder 53, It is possible to arbitrarily change the discharge amount of the rainwater 22 that has flown into the rainwater.

The connecting arm 46 formed on the outer circumferential surface of the elevating vessel 40 is configured to meet the circular wing 42 formed on the outer circumferential surface of the elevating vessel 40 to form a cross section, There is an effect that can be.

Since the one-way latching protrusions 31a and 33a in the form of half-tails are formed at the edges of the opening 31 and the flap 33, the closed state of the flap 33 is continuously maintained by the closing spring 45 It is possible to stop the elevating vessel 40 at a constant height at all times.

A first shaft support portion 38 for supporting the rotation shaft 32 is formed at a corner portion where the shielding disc 30 and the side wall 36 meet and the first pin shaft hole 38 passing through the first shaft support portion 38 38h are exposed to the outer peripheral surface of the side wall 36, there is an effect that the rotation shaft 32 can be easily assembled.

Furthermore, the present invention can also be expected to enhance the rigidity of the shielding disc 30 by the side wall 36 and the pressing portion 37 formed at the edge of the shielding disc 30.

1 is an exploded perspective view
2 is a partial cross-sectional perspective view showing a flow control valve and a closing spring according to the present invention.
3 is an exploded perspective view showing the flap, the connecting arm, and the connecting rod according to the present invention.
Fig. 4 is a plan view
5 is a cross-sectional view taken along line A-A '
Fig. 6 is a cross-sectional view showing the flap being opened from the state of Fig. 5
7 is an enlarged view of the portion B in Fig. 5
8 is an enlarged view of the portion C in Fig. 6
9 is an enlarged cross-sectional view of the main part showing that the flap according to the present invention is closed
10 is an enlarged cross-sectional view of the main part showing that the flap according to the present invention is opened
Figure 11 is a perspective view of a flap closed according to the present invention;
Fig. 12 is a perspective view of the bottom side of Fig. 11,
Figure 13 is a perspective view of the flap according to the present invention,
Fig. 14 is a perspective view of the bottom side of Fig.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 14, the present invention includes a shielding disc 30 installed in a frame 20; And an opening (31) arranged in a circular shape in the shielding disk (30).

The shielding disc 30 may be formed in a disc shape having a constant thickness as shown in FIGS. 1, 11 to 14, and the openings 31 are narrower toward the center of the shielding disc 30 And is radially disposed at a predetermined interval in the circumferential direction from the center of the shielding disc 30, and is formed in a shape penetrating up and down.

The present invention is characterized in that it comprises a rotating shaft (32) radially installed on a shielding disc (30) and crossing the opening (31); And a flap 33 for opening and closing the opening 31 while being rotated about the rotary shaft 32.

The rotating shaft 32 can be formed by using a straight steel wire as shown in FIG. 1, and is arranged radially from the center of the shielding disc 30 in the shape of a fan in a plan view.

The flap 33 may be formed in a substantially fan shape having the same shape as the opening 31. The flap 33 is rotated around the rotation axis 32 at the inside of the opening 31 to close or open the opening 31 It plays a role.

A guide sleeve (34) formed at the center of a shielding disc (30); A lifting container 40 guided by the guide sleeve 34 in the up and down direction and containing the rainwater 22 flowing through the manhole cover 21; A drain hole 41 formed in the bottom plate 48 of the elevating vessel 40 and discharging the rainwater 22 introduced into the elevating vessel 40 to the manhole 24; And a flow control valve 50 for controlling the flow rate of the rainwater 22 discharged through the drain hole 41.

1 and 7 to 10, the guide sleeve 34 can be formed in a cylindrical shape having an open top and a bottom and a constant thickness, and is formed so as to extend downward from the center of the shielding disc 30 It can be formed vertically.

The lifting and lowering container 40 may be formed in a cylindrical shape that is vertically raised and lowered in a state of being closely contacted with the inner circumferential surface of the guide sleeve 34 and has an open top and a bottom plate 48 at the bottom.

If the food grease is applied to the inner circumferential surface of the guide sleeve 34 and the outer circumferential surface of the lift container 40, the lift movement of the lift container 40 can be made more smooth.

The rainwater 22 flowing into the inside of the manhole cover 21 through the inflow hole 21h flows into the lift container 40 through the guide sleeve 34 and collects the rainwater 22 in the flow control valve 50 and the drain hole 41 to the manhole 24.

The present invention is characterized by a circular blade (42) formed on an outer peripheral surface of a lift vessel (40); A lower sheet 35 formed on the outer peripheral surface of the guide sleeve 34; A slide shaft 43 passing through the circular wing 42 and the lower sheet 35; And an upper sheet 44 provided at the upper end of the slide shaft 43.

1 and 2, the circular blade 42 is integrally formed on the outer circumferential surface of the lifting and lowering vessel 40 and is provided with a part of the connecting arm 46 to reinforce the connecting arm 46 while forming a cross- .

Guide holes 35h and 42h whose centers coincide with each other in the vertical direction are formed on the lower sheet 35 and the circular vanes 42. The slide shafts 43 are inserted into the circular vanes 42, The slide shaft 43 is guided in the vertical direction through the guide hole 35h formed in the lower sheet 35 when the lift container 40 is lifted and lowered, .

The upper sheet 44 may be formed in a flat donut shape as shown in FIG. 2, and a through hole 44h for inserting the upper end of the slide shaft 43 is formed at the center of the upper sheet 44.

A snap ring 49 is provided at the end of the slide shaft 43 inserted into the upper seat 44 to prevent the upper seat 44 from being detached from the slide shaft 43.

A normal stop groove (not shown) is formed on the outer peripheral surface of the slide shaft 43 in order to install the snap ring 49 on the slide shaft 43. [

A pin head 43a is formed at the lower end of the slide shaft 43 so as to be caught on the bottom surface of the circular blade 42 so that the elastic restoring force of the closing spring 45 is transmitted to the pin 43 of the slide shaft 43, And is transmitted to the circular blade 42 through the head 43a so that the lifting container 40 is lifted by the circular blade 42.

The slide shaft 43 is linearly moved along the guide hole 35h formed in the lower sheet 35 of the stopped guide sleeve 34 in the vertical direction so that the lifting and lowering container 40 is lowered by the weight of the rainwater 22 Or acts to prevent the rotation of the lift container 40 when it is lifted by the closing spring 45.

A closing spring (45) installed between the lower sheet (35) and the upper sheet (44) to lift up the lift container (40); A connecting arm 46 formed radially on the outer circumferential surface of the lifting container 40 corresponding to the flaps 33; And a connecting rod 47 connecting the connecting arm 46 and the flap 33 in a clevis shape.

The closing spring 45 may be composed of, for example, a compression coil spring formed by spirally winding a spring steel wire, and may be installed at three regular intervals in the circumferential direction along the circular wing 42 as viewed in plan view .

Clevis portions 33c and 46c are formed at one side of the bottom surface of the flap 33 and at the end of the connecting arm 46 to connect the connecting rod 47 to the flap 33 and the connecting arm 46, After piercing the pivot holes 33d, 46d, 47a and 47b in the rod 47 and the clevis portions 33c and 46c, the pivot pins 60 and 61 are inserted into the pivot holes 33d and 46d, The stop rings 62 and 63 are provided at the ends of the pivot pins 60 and 61 to prevent the pivot pins 60 and 61 from being separated.

(Not shown) is formed on the outer circumferential surface of the pivot pins 60 (61) so as to attach the stop rings 62 (63) to the pivot pins 60 (61).

The clevis portions 33c and 46c formed in the flap 33 and the connecting arm 46 may be formed at a predetermined distance in pairs so that both ends of the connecting rod 47 can be inserted.

The flow control valve (50) according to the present invention includes an inner tube (51) installed in a drain hole (41); An inner slot 52 formed at regular intervals along the outer circumferential surface of the inner tube 51; An outer cylinder 53 which is in close contact with the outer side of the inner cylinder 51; An outer slot 54 which is formed at regular intervals along the outer circumferential surface of the outer cylinder 53 and meets and overlaps with the inner slot 52; And a fixing bolt 55 for stopping the rotation of the outer cylinder 53.

2, 7, and 8, the inner cylinder 51 may be formed in a cylindrical shape with an upper portion closed and a lower portion opened. The lower end of the inner cylinder 51 may be a flange (58) are formed.

The flange 58 formed at the lower end of the inner cylinder 51 is brought into close contact with the bottom surface of the bottom plate 48 when the inner tube 51 is inserted upward from the lower side toward the drain hole 41 formed at the center of the bottom plate 48 .

At this time, the rivet 56 is inserted into the rivet holes 48h and 58h formed in the bottom plate 48 and the flange 58 and then the end of the rivet 56 protruded upward from the bottom plate 48 is pressed, (51) can be fixed to the bottom plate (48) of the lift container (40).

2, 7 and 8, the outer cylinder 53 may be formed in a cylindrical shape with an upper portion closed and a lower portion open. The outer cylinder 53 is rotated while being in close contact with the outer peripheral surface of the inner cylinder 51, 52 and the outer slot 54. In this case,

The fixing bolt 55 is inserted into the through hole 53h formed in the center of the upper surface of the outer cylinder 53 to be engaged with the tapped hole 57 formed in the center of the upper surface of the inner cylinder 51, When the fixing bolt 55 is loosened, the outer cylinder 53 can be rotated.

The inner slot 52 may be formed in a rectangular shape penetrating into and out of the inner cylinder 51 and the outer slot 54 may be formed in a rectangular shape cut out from the lower end of the outer cylinder 53 toward the upper side.

The present invention includes one-way locking tabs (31a) (33a) which are formed at the edges of the opening (31) and the flap (33), respectively, and which meet when the flap (33) is closed.

As shown in Figs. 9 and 10, the one-way locking protrusions 31a and 33a formed on both sides of the opening 31 and the flap 33 are formed to be inverted upside down, So that the flap 33 is opened and closed in one direction.

For example, when the flap 33 is rotated in the clockwise direction in FIGS. 9 and 10, it is opened. When the flap 33 is rotated in the counterclockwise direction and horizontally positioned, the flap 33 can be closed. The engagement jaws 31a and 33a are kept closed while being in contact with each other.

The present invention is characterized by an annular locking step 23 formed on the inner peripheral surface of the frame 20; An annular side wall (36) formed along an edge of the shielding disc (30); And a pressing portion 37 formed at the upper end of the side wall 36 and urged between the manhole cover 21 and the annular stopping jaw 23.

The annular stopping jaw 23 formed on the frame 20 and the pressing portion 37 formed on the shielding disc 30 are for providing the shielding disc 30 with the manhole cover 21 and the frame 20, The original 30 is placed horizontally on the frame 20 when the original 30 is inserted into the frame 20 and the pressing portion 37 is placed on the annular stopping jaw 23.

Thereafter, when the manhole cover 21 is coupled to the frame 20 and closed, the manhole cover 21 fixes the pressing portion 37 while being pressed toward the annular stopping jaw 23.

As shown in the enlarged view of FIG. 5, the side wall 36 formed in the shielding disc 30 can be formed in a cone shape whose inner diameter gradually increases toward the upper side.

The present invention includes a first axially supported portion 38 formed radially along a corner portion where the side wall 36 meets the shielding disc 30 and supports one end of the rotational axis 32; And a first pin hole 38h through the center of the first shaft support portion 38 from the outer peripheral surface of the side wall 36 to the opening 31 and into which the rotation shaft 32 is inserted.

The first shaft support portion 38 may be formed in a cylindrical shape having a diameter larger than the thickness of the shielding disc 30 and may be formed in a cylindrical shape as shown in an enlarged view of FIGS. And the rotary shaft 32 is inserted through the one-pin hole 38h.

The present invention includes a second axially supported portion 39 formed radially along the edge of the opening 31 opposed to the first axially extending portion 38 and supporting the other end of the axle 32; And a second pin hole 39h which is formed at the center of the second shaft support portion 39 and into which the other end of the rotation shaft 32 is inserted.

The rotation shaft 32 inserted through the first pin hole 38h of the first shaft support portion 38 is inserted into the center of the hub 33b of the flap 33 as shown in Figs. 1, 7, Passes through the 3-pin hole 33h, and is then inserted into and supported by the second pin hole 39h of the second axial supporting portion 39. [

The second axially supported portion 39 can be formed in the shape of a cylinder having a larger diameter than the thickness of the shielding disc 30.

The present invention comprises a hub 33b which is positioned on the first axle 38 and the second axle 39 and is formed at the center of rotation of the flap 33; And a third pin hole 33h formed in the center of the hub 33b for inserting the rotary shaft 32. [

9 and 10, the hub 33b can be formed in a cylindrical shape at the center of the flap 33, and the third pin hole 33h formed in the center of the hub 33b And passes both ends of the hub 33b.

Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

6 and 8, when the flap 33 is closed, the rainwater 22 falls off the upper surface of the shielding disc 30 through the inflow hole 21h formed in the manhole cover 21 And the rainwater 22 that has fallen to the shielding disc 30 flows through the guide sleeve 34 to the lift container 40 and is collected.

At this time, the rainwater 22 collected in the lift container 40 is discharged to the manhole 24 through the flow control valve 50. The flow control valve 50 installed on the bottom plate 48 of the lift container 40, When the amount of inflow of the rainwater 22 flowing into the lifting container 40 is larger than the amount of the rainwater 22 flowing through the lifting container 40, the water level of the lifting container 40 gradually increases.

When the water level of the rainwater 22 filled in the lifting container 40 is increased, the weight acting on the lifting container 40 by the rainwater 22 is gradually increased. By the weight of the rainwater 22, When the force for lowering the valve 40 is greater than the repulsive force of the closing spring 45, the closing spring 45 is compressed while the lifting container 40 is lowered as shown in Fig.

At this time, one side of the flap 33 is pulled downward by the connecting rod 47 connected to the connecting arm 46 formed in the lifting container 40. When the flap 33 is rotated around the rotating shaft 32, A fence 31 is opened.

When the lift container 40 is lowered, the slide shaft 43 is lowered together with the lift container 40. At this time, the closing spring 45 is compressed by the upper sheet 44 provided at the upper end of the slide shaft 43 , And the slide shaft 43 is linearly guided along the guide hole 35h formed in the lower sheet 35 in the vertical direction.

In this process, the lifting and lowering container 40 can be lowered and rotated only in the vertical direction by the slide shaft 43, so that the movement of the flap 33 following the movement of the lifting container 40 can be maintained constantly do.

The flap 33 is rotated about the rotation axis 32 having both ends supported by the first shaft support portion 38 formed on the shielding disk 30 and the second shaft support portion 39 as shown in Fig. The rainwater 22 flowing into the shielding disk 30 is instantaneously discharged to the manhole 24 through the opening 31 and the drainage amount of the rainwater 22 is greatly increased as the flap 33 is opened.

The process of transferring the force from the lifting and lowering vessel 40 to the flap 33 when the lifting and lowering vessel 40 is lowered is performed by moving the connection arm 46 and the clevis portion 46c formed in the lifting and lowering vessel 40 from the pivot pin 61 and the connecting rod 47 and the force is transmitted from the connecting rod 47 and the pivot pin 60 to the clevis portion 33c and the flap 33 so that the flap 33 is rotated.

On the other hand, when adjusting the discharge amount of the rainwater 22 flowing into the lift container 40 using the flow control valve 50, the fixing bolt 55 is loosely loosened as shown in FIGS. 2, 7 and 8 When the outer cylinder 53 is rotated, the overlapping area of the outer slot 54 formed in the outer cylinder 53 and the inner slot 52 formed in the inner cylinder 51 is varied.

Since the rainwater 22 is drained through the overlapping portion of the inner slot 52 and the outer slot 54 as described above, if the overlapping area of the inner slot 52 and the outer slot 54 is changed by rotating the outer cylinder 53 The discharge amount of the rainwater 22 can be adjusted and the outer cylinder 53 is fixed to the inner cylinder 51 when the fixing bolt 55 is tightly tightened again so that the discharge amount of the rainwater 22 can be kept constant.

The amount of inflow of the rainwater 22 flowing into the inflow container 40 is reduced more than the amount of discharge of the rainwater 22 discharged through the flow control valve 50, When the repelling force of the closing spring 45 becomes larger than the force for lowering the lifting container 40 by the rainwater 22 at this time, the lifting container 40 The flap 33 is closed and the opening 31 is closed while being lifted by the closing spring 45.

The path through which the force is transmitted from the closing spring 45 to the upper seat 44 while the force is transmitted to the lifting container 40 in the process of being stretched in the compressed state is that the force is transmitted from the closing spring 45 to the upper seat 44, The slide shaft 43 is raised while the force is transmitted to the slide shaft 43 through the snap ring 49 and is lifted and lowered by the circular blade 42 caught by the pin head 43a formed at the lower end of the slide shaft 43 The container 40 is lifted by the force in the upward direction.

When the flap 33 is closed as shown in Fig. 9, the flap 33 is stopped while the opening 31 and the one-way engagement protrusions 31a and 33a formed on the flap 33 are stopped, and the one- The elevation height of the lifting container 40 is also always constant by the lifter 31a (33a).

20: Frame 21: Manhole cover
21h: Inflow hole 22: Rainwater
23: annular jaw jaw 24: manhole
30: shielding disc 31: opening
32: rotating shaft 33: flap
31a, 33a: one-way locking jaw 33b: hub
33c, 46c: clevis portion 33d, 46d, 47a, 47b: pivot hole
33h: third pin hole 34: guide sleeve
35: lower seat 35h, 42h: guide hole
36: side wall 37:
38: first shaft support portion 38h: first pin hole
39: second shaft portion 39h: second pin hole
40: lift container 41: drain
42: circular wing 43: slide shaft
43a: Pin head 44: Upper seat
44h: Through hole 45: Closing spring
46: connecting arm 47: connecting rod
48: bottom plate 48h, 58h: rivet hole
49: Snap ring 50: Flow control valve
51: inner tube 52: inner slot
53: outer tube 53h: through hole
54: outer slot 55: fixing bolt
56: rivet 57: tapped hole
58: flange 60,61: pivot pin
62, 63:

Claims (5)

delete A shielding disc (30) provided on the frame (20);
An opening (31) arranged in a circular shape in the shielding disk (30);
A rotating shaft (32) radially installed on the shielding disc (30) and crossing the opening (31);
A flap (33) for opening / closing the opening (31) while rotating around the rotation axis (32);
A guide sleeve 34 formed at the center of the shielding disc 30;
A lifting container 40 guided in the up and down direction by the guide sleeve 34 and containing the rainwater 22 flowing through the manhole cover 21;
A drain hole 41 formed in the bottom plate 48 of the elevating vessel 40 and discharging the rainwater 22 introduced into the elevating vessel 40 to the manhole 24;
A flow control valve 50 for controlling the flow rate of the rainwater 22 discharged through the drain hole 41;
A circular blade (42) formed on an outer circumferential surface of the lift container (40);
A lower sheet 35 formed on the outer circumferential surface of the guide sleeve 34;
A slide shaft 43 passing through the circular blade 42 and the lower sheet 35;
An upper sheet 44 installed on the upper end of the slide shaft 43;
A closing spring (45) installed between the lower sheet (35) and the upper sheet (44) to lift up the lift container (40);
A connection arm 46 formed radially on the outer circumferential surface of the lifting container 40 corresponding to the flaps 33;
A connecting rod 47 connecting the connecting arm 46 and the flap 33 in a clevis shape;
Wherein the odor prevention device comprises:

The flow control valve (50)
An inner tube (51) installed in the drain hole (41);
An inner slot (52) formed at regular intervals along the outer circumferential surface of the inner cylinder (51);
An outer tube 53 which is in close contact with the outer side of the inner tube 51;
An outer slot 54 formed at regular intervals along the outer circumferential surface of the outer cylinder 53 and overlapping with the inner slot 52;
A fixing bolt 55 for stopping rotation of the outer cylinder 53;
And an odor prevention device for the odor of the manhole for an environmentally friendly sewerage. A shielding disc (30) provided on the frame (20);
An opening (31) arranged in a circular shape in the shielding disk (30);
A rotating shaft (32) radially installed on the shielding disc (30) and crossing the opening (31);
A flap (33) for opening / closing the opening (31) while rotating around the rotation axis (32);
A guide sleeve 34 formed at the center of the shielding disc 30;
A lifting container 40 guided in the up and down direction by the guide sleeve 34 and containing the rainwater 22 flowing through the manhole cover 21;
A drain hole 41 formed in the bottom plate 48 of the elevating vessel 40 and discharging the rainwater 22 introduced into the elevating vessel 40 to the manhole 24;
A flow control valve 50 for controlling the flow rate of the rainwater 22 discharged through the drain hole 41;
A circular blade (42) formed on an outer circumferential surface of the lift container (40);
A lower sheet 35 formed on the outer circumferential surface of the guide sleeve 34;
A slide shaft 43 passing through the circular blade 42 and the lower sheet 35;
An upper sheet 44 installed on the upper end of the slide shaft 43;
A closing spring (45) installed between the lower sheet (35) and the upper sheet (44) to lift up the lift container (40);
A connection arm 46 formed radially on the outer circumferential surface of the lifting container 40 corresponding to the flaps 33;
A connecting rod 47 connecting the connecting arm 46 and the flap 33 in a clevis shape;
Wherein the odor prevention device comprises:

A one-way locking tabs (31a) (33a) formed in the shape of a tilt at the edges of the opening (31) and the flap (33) to meet each other when the flap (33) is closed;
And an odor prevention device for the odor of the manhole for eco-friendly sewage. A shielding disc (30) provided on the frame (20);
An opening (31) arranged in a circular shape in the shielding disk (30);
A rotating shaft (32) radially installed on the shielding disc (30) and crossing the opening (31);
A flap (33) for opening / closing the opening (31) while rotating around the rotation axis (32);
A guide sleeve 34 formed at the center of the shielding disc 30;
A lifting container 40 guided in the up and down direction by the guide sleeve 34 and containing the rainwater 22 flowing through the manhole cover 21;
A drain hole 41 formed in the bottom plate 48 of the elevating vessel 40 and discharging the rainwater 22 introduced into the elevating vessel 40 to the manhole 24;
A flow control valve 50 for controlling the flow rate of the rainwater 22 discharged through the drain hole 41;
A circular blade (42) formed on an outer circumferential surface of the lift container (40);
A lower sheet 35 formed on the outer circumferential surface of the guide sleeve 34;
A slide shaft 43 passing through the circular blade 42 and the lower sheet 35;
An upper sheet 44 installed on the upper end of the slide shaft 43;
A closing spring (45) installed between the lower sheet (35) and the upper sheet (44) to lift up the lift container (40);
A connection arm 46 formed radially on the outer circumferential surface of the lifting container 40 corresponding to the flaps 33;
A connecting rod 47 connecting the connecting arm 46 and the flap 33 in a clevis shape;
Wherein the odor prevention device comprises:

An annular locking step 23 formed on an inner circumferential surface of the frame 20;
An annular side wall (36) formed along an edge of the shielding disc (30);
A pressing portion 37 formed at an upper end of the side wall 36 and pressed between the manhole cover 21 and the annular locking protrusion 23;
And an odor prevention device for the odor of the manhole for an environmentally friendly sewerage. The method of claim 4,
A first shaft support portion 38 formed radially along the corner portion where the side wall 36 meets the shielding disc 30 and supports one end of the rotation shaft 32;
A first pin hole 38h extending from the outer circumferential surface of the side wall 36 to the opening 31 through the center of the first shaft support portion 38 and into which the rotation shaft 32 is inserted;
A second shaft support portion 39 formed radially along the edge of the opening 31 facing the first shaft support portion 38 and supporting the other end of the rotation shaft 32;
A second pin hole 39h formed at the center of the second shaft portion 39 and inserted into the other end of the rotation shaft 32;
A hub 33b positioned in a straight line on the first axle portion 38 and the second axle portion 39 and formed at the center of rotation of the flap 33;
A third pin hole (33h) formed at the center of the hub (33b) for inserting the rotary shaft (32);
And an odor prevention device for the odor of the manhole for eco-friendly sewage.

Images