KR101406283B1 - Steel Manhole Cover With Odor and Waste Inlet Reduction Apparatus - Google Patents

Abstract

Disclosed is a steel manhole cover which integrally includes a device for preventing odor reversely flowing through a drain and a waste inflow reducing device filtering wastes such as foreign substances flowing into the drain with rainwater not to flow inside the drain. The steel manhole cover also includes a safety discharge door capable of safely discharging air pressure or water pressure of more than a predetermined pressure value without damaging other parts when the air pressure or the water pressure of more than the predetermined pressure is applied.

Description

TECHNICAL FIELD [0001] The present invention relates to a steel manhole cover,

The present invention relates to a manhole cover for a steel plate integrated with a malodor and a garbage inflow reducing device installed in a manhole of a sewer to reduce odor and / or waste inflow, and in particular, a manhole cover body is provided with a garbage A manhole having safety means for integrally providing a reduction means for reducing the inflow of sewage into the sewer and reducing odor backwashing from the sewer and for safely discharging the sewage when a predetermined atmospheric pressure or a hydraulic pressure is generated from the sewer, It is about the lid.

Generally, a manhole such as a road and / or an indo (human) is provided with a cover such as a grating for draining rainwater generated by rainstorms to a sewer, and the grating is swept away like rainwater on roads and in human beings It is a well-known fact that dust and the like such as foreign matter are prevented from being clogged by the influx of sewage into the sewer pipe through the manhole.

However, as can be seen from the following Patent Literature, the lids provided in the existing manholes are formed in such a manner that the holes for introducing the rainwater have the same diameter at the top and the bottom, so that waste such as fallen leaves or cigarette butts, There is a problem that they can easily pass through the manhole and enter the inside of the sewer pipe, and this problem is the main cause of clogging the sewer as a result.

In addition, the following patent documents disclose that the odor and the like which flow back through the sewer pipe are previously blocked so as not to be released to the outside by the malodor shield installed at the bottom of the manhole cover, etc., Since the malodor blocking device is installed just above the opening of the manhole, there is a possibility that the malodor leakage may occur at such a binding site.

In addition, the malodor shielding device disclosed in the following patent document has a problem in that, when an atmospheric pressure or a water pressure higher than an unexpected specified value is applied from the inside of the sewer pipe, the safety device is not provided. That is, in the prior arts such as the following patent documents, when the atmospheric pressure or water pressure over a certain level is applied to the malodor shielding device through the sewer pipe, the opening of the sewer is completely closed by the malodor shielding device, When the air pressure or the hydraulic pressure is applied, the manhole cover itself is detached from the manhole by the pressure, so that there is a high possibility of causing the second and third safety accidents.

Accordingly, it is possible to prevent the backflow of the odor from being airtightly blocked while preventing the clogging of the rainwater inflow port caused by the garbage such as rainwater, and also to provide the manhole cover which is not easily separated from the manhole of the sewer even when a certain pressure or water pressure is applied. .

1. Patent Registration No. 10-1111091

The present invention has been made in order to solve the above-described problems of the prior art and to provide various additional advantages. In particular, it is an object of the present invention to reduce the odor backwashing from the sewer pipe and to introduce foreign matter such as refuse, The present invention provides a manhole cover capable of effectively filtering out manholes.

It is also an object of the present invention to provide a manhole cover which can be discharged quickly before these pressures are directly influenced by the manhole cover main body when a certain pressure or pressure is applied from the sewer pipe.

It is another object of the present invention to provide a manhole cover which can maintain the airtightness and watertightness of the joint portion between the manhole cover and the sewer so that the outflow of the malodor can be minimized.

The above objects are achieved by a malleable manhole cover integrated with a malodorous and refuse incineration device provided according to the present invention.

According to an aspect of the present invention, there is provided a manhole cover integrated with a malleable steel sheet, wherein the manhole cover includes a cone-shaped rainwater inlet port for catching foreign matter such as rainwater, A lid body which is provided so as to protrude upward from the surface, a lid body comprising a steel plate in which water holes are perforated between the rainwater inlets and support frames coupled to the steel plate; The lid body is formed with closed spaces at the bottom of the lid body by engaging plate-shaped members extending downward from the bottom of the lid body, and the spaces are provided with the rainwater inlets and water holes The rainwater inflow chambers providing the openings for draining the inflowing rainwater and the openings for discharging the inflow rainwater when the air pressure is higher than a predetermined level; Only the upper end thereof is hinged to open and close the openings for draining the rainwater so that the odor which is opened when the rainwater inflows into the rainwater inflow chambers is opened when the water pressure is released and is closed by the self weight when the water pressure is released is blocked The lower end of which is provided with elastic members for maintaining airtightness and watertightness; And one end is hung to open and close the openings for discharging the air in the above-mentioned air pressure and water pressure operation, and when the atmospheric pressure or the water pressure blocked by the odor- And to close the openings by their own weight at the time of release.

In one embodiment, the support frames are composed of central support frames for integrally connecting at least two steel plates and outer support frames bent in a U-shape in a manner to protect the outer peripheries of the steel plates, The outer support frames are formed with elongated grooves on the surface of the support frames facing the support jaws. The rubber seals for preventing leakage and airtightness are attached to the elongated grooves so as to prevent noise.

In another embodiment, the rainwater inflow chamber may include first plate-shaped members that are inclined downwardly from the entire length of the central support frame interconnecting the steel plates, and second members that are bent at right angles from both sides of the steel plate, Like second members and second member-side members that are integrally joined to both ends of the second members so as to cross both ends of the second members and form curved oblique faces forming the openings on both sides .

In another embodiment, the odor-blocking opening and closing door is a rectangular plate body and is inclined downward from the lid body so that an upper end thereof is hinged to be pivotally rotated with respect to each of the first members and the other end is freely contacted with the third members So that the rainwater drainage openings can be opened and closed.

In another embodiment of the present invention, the safe opening / closing door is formed as a rectangular plate having a predetermined width, the upper end thereof is pivotally hinged to the frame members, and the lower end is positioned in a state of freely touching the third members, The openings for discharging the air pressure and the water pressure are opened and closed, and a weight for adjusting the opening speed of the safety opening / closing doors may be installed on one side of the safety opening / closing door.

According to the present invention, it is possible not only to reduce the malodor backwashing from the sewage pipe, but also to reduce the influx of the waste into the manhole such as rainwater.

In addition, when the atmospheric pressure or the water pressure is applied to the manhole cover from the sewer pipe to the manhole cover, these pressures give a safety effect that can be safely discharged in advance without directly affecting the manhole cover main body.

In addition, the joining portion between the manhole cover and the manhole is kept more airtight and watertight so as to prevent the outflow of odor.

1 is a perspective view showing an appearance of a manhole cover integrated with a malodor and garbage inflow reducing device according to the present invention,
Fig. 2 is a partially cut-away perspective view showing a part of Fig.
3 is a cross-sectional view along the II line direction of Fig. 1,
4 is a cross-sectional view taken along line II-II in Fig.

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

1 to 3, the manhole cover 100 of the present invention is mounted so as to be seated on the supporting jaw 2 so as to cover the opening 3 of the manhole 1, The rainwater inlets 112 are formed in a state in which the conical rainwater inlets 112 for filtering out foreign substances flowing into the sewer are protruded upward and the rainwater inlets 112 are formed between the rainwater inlets 112, A plurality of support frames 120a and 120b for securely supporting the outer and central portions of the steel plate 110, And a manhole cover main body made of a metal plate.

In the manhole cover 100, the rainwater inlets 112 are protruded from the surface of the steel plate 110. The reason for this is that a floating material such as a fallen leaf or a scattered-type waste vinyl that is moved together with the rainwater when it is raining when it rains can not easily pass through the opening portion of the rainwater inlets 112 protruding from the surface of the steel plate 110, It is for. In addition, the rainwater inlets 112 protruding from the surface of the steel plate 110 are slidable from the surface of the steel plate 110 so that the stroller, the inline skate, the wheelchair wheel, Slip action to prevent the slip.

Since the protrusion of the rainwater inflow ports 112 may weaken the drainage ability of the rainwater from the steel plate 110, the rainwater inflow ports 112 may be formed between the protruded rainwater inflow ports 112 to maximize the drainage ability. (114). The installation of the water holes 114 prevents the freezing phenomenon, which may occur in winter especially due to the remnants of the steel plate 110.

The outer support frame 120a and the central support frame 120b, which are bent in a substantially U-shape, provided on the steel plates 110, securely protect the steel plates 110 from a physical impact externally applied thereto. As shown in Figs. 3 and 4, also acts to more reliably and stably support the manhole cover main body to the supporting jaw 2 of the sewer. For this reason, it is preferable that the support frames 120a and 120b are formed of the same metal material as the steel plate 110, and the gap between the support frame 2 and the outer support frame 120a The rubber packing member 124 is inserted into the semicircular groove 122 as viewed from the end surface of the bottom of the outer support frame 120a so that the rubber packing member 124 can be inserted into the support jaw 2, The rubber packing member 124 prevents leakage of the malodor gas backwashing from the sewer pipe and noise caused by collision with the supporting jaws when the vehicle passes through the rubber packing member 124. [ . The rubber packing member 124 may be made of EPDM (ETHYLENE PROPYLENE DIENE MONOMER), which is excellent in ozone resistance, cold resistance, heat resistance and solvent resistance.

The manhole cover body described in the above embodiment is an example in which two steel plates 110 are interconnected by a central support frame 120b. The size of the manhole cover can be arbitrarily changed according to the size of the sewer Do.

 A plurality of odor shielding doors 130 for blocking odors that flow back while discharging rainwater flowing through the rainwater inlets 112 of the steel plate 110 and the water hole 114, A plurality of rainwater inflow chambers 140 having a plurality of safety opening and closing doors 150 are installed by the coupling of the plate-like first to third members 161 to 163. The rainwater inflow chambers 140 formed in this manner are opened in such a manner that only the upper portion is in communication with the rainwater inlets 112 and the water hole 114 while the remaining portions are opened in a totally enclosed space to form the rainwater inlets 112 and The rainwater flowing through the water hole 114 is temporarily stored and discharged to the sewer pipe.

2 to 4, the rainwater inflow chambers 140 are formed in a plate-like first member (not shown) which is inclined downward from the entire length of the central support frame 120b interconnecting the steel plates 110, Like second members 162 that are bent at right angles and extend downward from both sides of the steel plate 161 and the steel plate 110 and the opposite ends of the second members 162, 3 formed by the gently curved inclined planar third members 163 integrally coupled to both ends of the two members 162. The front and rear sides of the rainwater inflow chambers 140 Openings 134 and 154 that are opened and closed by the malfunction blocking doors 130 and the safety opening and closing doors 150 are formed.

As shown in FIG. 3, the rectangular odor-blocking doors 130 are rotatably installed in the first openings 134 facing each other in the rainwater inflow chambers 140 to form the first openings 134, Is opened or closed. The hinges 132 are provided at the lower ends of the first members 161 that are the upper ends of the first openings 134 to allow the upper end of the malfunction isolation doors 130 to rotate, The lower rear side of the opening / closing doors 130 is freely brought into contact with the third member 163 so that the first openings 134 are opened or closed by their own weight depending on whether the rainwater is pressurized.

The second openings 154 formed on the opposite sides of the first openings 134 are opened or closed by the safety openings 150. 2 and 3, at the bottom of the outer support frames 120a, which are the upper ends of the second openings 154, the upper ends of the rectangular safety openings 150 are pivoted to hinges 152 And the lower end of the safety opening and closing doors 150 is freely contacted with the third members 163 so that the front end portion of the safety openings 150 is free from a pressure or a water pressure Thus, the second openings 154 are configured to be opened or closed with their own weight.

In this configuration, when the rainwater generated during rainfall flows into the respective rainwater inflow rooms 140 through the rainwater inflow ports 112 and the water discharge holes 114, 2, when the water pressure of the rainwater flowing into the rainwater inflow chambers 140 is applied, the opening / closing doors 130 are rotated in the direction of arrow a with the hinge portion 132 as a fulcrum, 134 to quickly drain the rainwater entering the rainwater inflow chambers 140 through the open first openings 134 to the sewer canal. Particularly, the bottom portion of the rainwater inflow chambers 140 is formed as a curved surface inclined toward the first opening 134, so that the inflow rainwater is discharged to the rainwater inflow chambers 140 without being accumulated, Because of this, there is no source of odor or a factor that can be used as a habitat for pests.

On the contrary, when the water pressure is weakened due to a decrease in the inflow amount of the rainwater, the malfunction-isolating opening / closing doors 130 opened from the first opening 134 are quickly returned to the direction opposite to the arrow a due to their own weight, (134). The state where the first openings 134 are closed by the odor-blocking doors 130 closes the rainwater inflow chambers 140 so that the rainwater inlets 112 and the water holes 114 are completely blocked So that the malodor backflowing from the sewer is discharged to the outside through the manhole cover 100 remarkably. The degree of closing of the first openings 134 by the malfunction blocking doors 130 is freely adjustable by adjusting the self weight of the malfunction blocking doors 130. [ In the present invention, in order to improve the air-tightness of the first openings (134) by the opening / closing doors (130) for preventing odors and to prevent breakage of the opening / closing doors (130) for blocking odors due to friction at closing, Hollow elastic members 136 may be provided on the lower ends of the opening and closing doors 130 that abuts against the first members 163 or on the ends of the third members 163. [

On the other hand, when the odor and / or hydraulic pressure flowing back through the sewer is equal to or more than a certain level, the present invention can prevent the entire manhole cover 100 from departing by operating the safety openings 150 installed in the manhole cover 100 . The safety opening / closing doors 150 are opened / closed in a direction opposite to the direction of opening / closing the door 130 for blocking odors. That is, the safety opening / closing doors 150 normally close the second opening 154 by self-gravity in a direction in which rainwater flows in the rainwater inflow chambers 140. Therefore, it is not opened by the water pressure of the inflowing rainwater. On the contrary, if there is odor and / or water flowing back through the sewer pipe, it is preferable to block the opening by the opening / closing doors 130 for blocking odor. However, if the odor gas or water pressure (water) Interruption of air pressure or water pressure due to the state may cause safety accidents.

For this reason, the present invention has safety open / close doors 150. The safety openings 150 are opened from the second openings 154 by the strong pressure and the atmospheric pressure or the water pressure is supplied to the second openings 154 and the rainwater inflow chambers 154, The rainwater can be safely discharged to the outside through the rainwater inlets 112 and the water hole 114 after passing through the rainwater inlet 140 to prevent the risk that the entire manhole cover 100 as in the conventional case is separated by high pressure . The safety opening / closing doors 150 can adjust the opening / closing degree or opening / closing timing by the self weight, but can also be controlled by the weight 156 attached to one side of the safety opening / closing doors 150. In addition, when the opening and closing timings of the safety opening and closing doors 150 are intended to act sensitively to back pressure and / or water pressure, a float may be provided instead of a heavy object.

The parts used in the manhole cover 100 described above, for example, the malfunction isolation openings 130 and the safety openings 150, the hinges and the coupling bolts for rotating them, Corrosion-resistant materials to prevent corrosion from the above.

The present invention relates to a method for preventing malodorous water from being infiltrated by rainwater and reducing the inflow of foreign matter moving thereon, thereby preventing the clogging of the sewer and effectively preventing the outflow of the malodorous water. In addition, And it is also useful to prevent safety accidents caused by separation of the conventional manhole cover.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. Therefore, it should be pointed out that the scope of the present invention is not limited to the described embodiments, but should be construed according to the appended claims.

100: Manhole cover
110: steel plate
112: Rainwater inlet
114: water hole
120a, 120b: support frame
124: Rubber packing member
130: Opening door for odor blocking
140: Rainwater inflow chamber
150: Safety door

Claims (5)

delete Conical rainwater inflow ports for catching foreign matter such as rainwater that are introduced into the sewer in case of rains are installed so as to protrude upward from the surface, and water holes are perforated between the rainwater inflow ports. CLAIMS What is claimed is: 1. A lid comprising: a lid body made of a steel plate and support frames coupled to the steel plate;
The lid body is formed with closed spaces at the bottom of the lid body by engaging plate-shaped members extending downward from the bottom of the lid body, and the spaces are provided with the rainwater inlets and water holes The rainwater inflow chambers providing the openings for draining the inflowing rainwater and the openings for discharging the inflow rainwater when the air pressure is higher than a predetermined level;
Only the upper end thereof is hinged to open and close the openings for draining the rainwater so that the odor which is opened when the rainwater inflows into the rainwater inflow chambers is opened when the water pressure is released and is closed by the self weight when the water pressure is released is blocked The lower end of which is provided with elastic members for maintaining airtightness and watertightness; And
And one end is hung to open and close the openings for discharging the air in the above-mentioned air pressure and water pressure operation, and when the atmospheric pressure or the water pressure blocked by the odor- And the safety frames are closed by their own weight at the time of release, and the support frames are provided in a form of protecting the outer edges of the central support frames and steel plates integrally connecting at least two steel plates And the outer supporting frame is formed with an elongated groove formed at a portion of the outer supporting frames facing the supporting jaw, wherein the elongated groove is formed with a leakage preventing leakproof and airtightness, And a rubber packing for preventing and removing odor and waste Inlet reduction device-integrated steel manhole cover. The rainwater inflow chamber according to claim 2, wherein the rainwater inflow chamber comprises first plate-shaped members which are inclined downward from the entire length of the center support frame interconnecting the steel plates, and first and second plates which are bent at right angles from both sides of the steel plate, Like second members and third member having plate-like inclined faces which are integrally connected to both ends of the second members and which are positioned in such a manner as to cross both ends of the second members and form the openings on both sides Wherein the manhole cover is made of steel. [5] The apparatus according to claim 3, wherein the malfunction isolation opening and closing door is a rectangular plate body and is sloped downward from the lid body so that an upper end thereof is hinged to be pivotally rotated with respect to the first members and the other end is freely brought into contact with the third members And the rainwater drainage openings are opened and closed to thereby open and close the rainwater drainage openings. [5] The apparatus according to claim 4, wherein the safe opening / closing door is a rectangular plate having a predetermined width, an upper end of which is pivotably hinged to the frame members, and a lower end of the safety door is positioned in contact with the third members, Wherein the safety door is provided with a heavy object on one side thereof, and the safety door is further provided with a heavy object.

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