Drain Sewage Apparatus

Abstract

The present invention relates to a sewage receiving tank. To this end, the present invention comprises a housing having at least one inlet port for the inflow of sewage on one side and at least one outlet port for the drainage of sewage on the other side, and having a receiving space formed inside for receiving sewage; a riser pipe configured at the top of the housing to support the gap between the ground and the housing; a connecting pipe configured between the housing and the riser pipe to provide fixing force; and a manhole cover configured at the top of the riser pipe. The inlet port of the housing includes a trap for preventing odor or backflow of sewage, wherein the trap includes an inlet port inserted into the inlet port; a descending part extending downward from the end of the inlet port; and a rising part extending upward from the end of the descending part. One side of the descending part includes an overflow hole for bypassing sewage into the receiving space of the housing when sewage exceeding a normal range flows in, and the descending part includes a flap valve for opening and closing the overflow hole, wherein the flap valve is configured to be in close contact with the outer circumference of the descending part. It includes a hinge configured at one end of the valve disc to support the rotation of the valve disc; and an impact guide configured to protrude a certain length from the inner side of the valve disc to support the opening of the valve disc by the dynamic water pressure of the wastewater.

Description

Technology Field

[0001] The present invention relates to a sewage receiving tank that facilitates drainage. Background Technology

[0002] Generally, a sewage receiving tank is a device for the efficient maintenance of drainage facilities and connecting pipes. It is a system that separates and discharges domestic wastewater generated from sinks, bathtubs, etc., and sewage generated from toilets, etc., to prevent odors from flowing back into the home.

[0003] In addition, the sewage receiving tank is configured with a trap or similar device at the inlet to prevent odors generated from sewage contained in the housing's receiving space from flowing back through the inlet.

[0004] However, conventional sewage receiving systems have a problem in that when a flow rate exceeding the normal range temporarily flows into the housing inlet, such as during heavy rains, rapid drainage does not occur due to the structural characteristics of the trap, and the incoming sewage may backflow as it remains stagnant.

[0005] In addition, conventional sewage traps have a bend formed to prevent backflow of odors, but in this case, there is a problem in that the flow velocity of sewage flowing straight toward the trap decreases as it passes the bend, thereby interfering with smooth drainage.

[0006] In addition, if the flow velocity of wastewater is reduced due to the bending of the trap, fine debris and sediment contained in the wastewater accumulate, causing the pipe to become clogged in the long term.

[0007] Conventional sewage receiving systems have a problem in that foreign substances contained in the discharged sewage accumulate, and these accumulated foreign substances interfere with the smooth discharge of the sewage.

[0008] For this reason, accumulated foreign matter must be removed from the sewage receiving tank periodically or as needed. Prior art literature

[0009] Korean Intellectual Property Publication No. 10-2829601 (Published July 4, 2025) The problem to be solved

[0010] The present invention provides a sewage receiving device that enables smooth drainage performance even when sewage exceeding a normal range flows in, by configuring an overflow hole on one side of a trap provided in the sewage receiving device so that when sewage exceeding a normal range flows in, the sewage is drained through the overflow hole.

[0011] In addition, a sewage receiving device is provided that prevents backflow of odors, etc., through the overflow opening by configuring a flap valve to open and close the overflow opening of the trap.

[0012] In addition, an impact guide is formed to protrude a certain length on one side of the valve disc of a flap valve, thereby providing a wastewater receiving device that allows the valve disc to be easily opened by the dynamic pressure of the wastewater.

[0013] In addition, a sewage receiving device is provided with a pumping function that allows accumulated foreign matter, etc. to be easily discharged through the outlet by configuring a pumping unit in the sewage receiving device and providing pressure within the housing of the sewage receiving device periodically or as needed.

[0014] The problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems to be solved will be clearly understood by those skilled in the art to which the present invention pertains from the descriptions below. means of solving the problem

[0015] According to an embodiment of the present invention, in order to solve the aforementioned problem, the invention comprises: a housing having an inlet for sewage to flow in on one side and an outlet for sewage to be discharged on the other side, and a receiving space for receiving sewage inside; a trap that prevents backflow of odors, comprising a water flow section connected to the inlet, a downward section for the inflowing sewage to move downward, and an upward section for the inflowing sewage to move upward, wherein an overflow hole is formed on one side of the downward section of the trap to bypass the sewage into the receiving space of the housing when the amount of sewage to flow in exceeds a set range, and the overflow hole is provided with an opening / closing unit that opens / closes the overflow hole according to the sewage pressure inside the downward section.

[0016] According to an embodiment of the present invention, the opening and closing unit is composed of a flap valve, wherein the flap valve includes a valve disc covering the overflow hole; and a hinge coupled to the upper end of the valve disc to support rotation; and the valve disc may be configured to maintain a closed state under normal conditions and open due to pressure generated when wastewater flows in.

[0017] According to an embodiment of the present invention, an impact guide protruding a certain length into the lowering portion is formed on the inner surface of the valve disc and may be included to receive the dynamic pressure of the incoming wastewater and facilitate the opening of the valve disc.

[0018] According to an embodiment of the present invention, one side of the outer surface of the valve disc may include a protruding locking hook to allow a worker to forcibly open the valve disc during maintenance.

[0019] According to an embodiment of the present invention, a sealing mounting groove is formed on the outer circumference of the overflow hole of the lowering part, and a sealing ring for maintaining watertightness when the valve disc is closed may be inserted into the sealing mounting groove.

[0020] According to an embodiment of the present invention, the storage section between the lowering and rising parts of the trap may include a vortex plate formed integrally to prevent a decrease in flow velocity and the accumulation of foreign substances by rotating the flow of incoming wastewater to form a vortex.

[0021] According to an embodiment of the present invention, a vortex-forming member that induces the formation of a vortex in wastewater is detachably coupled to the inside of the trap, and the vortex-forming member may include a seating plate that is seated on the inside of the inlet and a vortex seating plate that extends along the inner surface of the lowering member.

[0022] According to an embodiment of the present invention, the surface of the vortex settling plate may include a plurality of guiding protrusions formed at an angle to guide the flow of wastewater and generate rotational force.

[0023] According to an embodiment of the present invention, a riser pipe extending to the ground is coupled to the upper part of the housing, an insulating pipe for preventing freezing is inserted inside the riser pipe, and a pumping unit that applies air pressure into the housing to induce the discharge of foreign substances may be provided inside the insulating pipe.

[0024] According to an embodiment of the present invention, the pumping unit may include a flange having a handle that can be grasped by a worker, and a piston that moves up and down in close contact with the inner circumference of the insulating pipe to generate pressure.

[0025] According to an embodiment of the present invention, a check module is installed on the inner side of the discharge port to block backflow of wastewater from the outside, wherein the check module may include a check plate hinged so as to be rotatable only in the discharge direction; and a spring elastically supporting the check plate in the closing direction. Effects of the invention

[0026] According to the means for solving the problem of the present invention described above, an overflow hole is formed on one side of a trap provided in a sewage receiving tank, so that when sewage exceeding the normal range flows in, the sewage is drained through the overflow hole, thereby providing the effect of enabling smooth drainage performance even when sewage exceeding the normal range flows in.

[0027] In addition, by configuring a flap valve to open and close the overflow opening of the trap, it is possible to prevent backflow of odors, etc. through the overflow opening.

[0028] In addition, by configuring an impact guide that protrudes a certain length on one side of the valve disc of the flap valve, the valve disc can be easily opened by the dynamic pressure of the wastewater.

[0029] In addition, a vortex plate having a certain length is formed in the storage section between the lowering and rising parts of the trap, and a vortex is generated in the wastewater introduced by the vortex plate to maintain the flow velocity, thereby enabling smooth drainage.

[0030] In addition, by configuring the vortex-forming part with a structure that is detachable from the trap, it is possible to generate a vortex in the wastewater, and at the same time, the durability of the trap is improved.

[0031] In addition, by configuring a pumping unit in the wastewater receiving tank and providing pressure within the housing of the wastewater receiving tank periodically or as needed, it has the effect of allowing accumulated foreign matter to be easily discharged through the outlet. Brief explanation of the drawing

[0032] FIG. 1 is an exploded perspective view of a sewage receiving tank according to a first embodiment of the present invention. FIG. 2 is a combined cross-sectional view of a sewage receiving tank according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view of a housing according to a first embodiment of the present invention. FIG. 4 is a cross-sectional view of the connection between a riser pipe and a connecting pipe according to the first embodiment of the present invention. FIG. 5 is a cross-sectional view of an insulating pipe according to a first embodiment of the present invention. FIG. 6 is a cross-sectional view of a pumping unit according to a first embodiment of the present invention. FIG. 7 is a combined configuration diagram of a trap according to a first embodiment of the present invention. FIG. 8 is a cross-sectional view of a trap according to a first embodiment of the present invention. FIG. 9 is a cross-sectional view of the operating state of a trap according to the first embodiment of the present invention. FIG. 10 is a perspective view showing another example of a trap according to a first embodiment of the present invention. FIG. 11 is a cross-sectional view showing a pumping state according to a first embodiment of the present invention. FIG. 12 is a cross-sectional view of a trap according to a second embodiment of the present invention. FIG. 13 is an exploded perspective view of a trap and a vortex-forming part according to a third embodiment of the present invention. FIG. 14 is a plan view of a vortex-forming part according to a third embodiment of the present invention. FIG. 15 is a separated cross-sectional view of a trap and a vortex forming part according to a third embodiment of the present invention. FIG. 16 is a cross-sectional view of the coupling of a vortex-forming part to a crab according to a third embodiment of the present invention. FIG. 17 is a partial enlarged view of a sewage receiving tank showing the configuration state of a check module according to the fourth embodiment of the present invention. FIG. 18 is a separated cross-sectional view of a check module according to a fourth embodiment of the present invention. FIG. 19 is a cross-sectional view showing the operating state of a check module according to a fourth embodiment of the present invention. Specific details for implementing the invention

[0033] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following detailed description is provided to facilitate a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, this is merely illustrative and the present invention is not limited thereto.

[0034] In describing the embodiments of the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the present invention. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification. Terms used in the detailed description are intended merely to describe the embodiments of the present invention and should not be limiting in any way. Unless explicitly stated otherwise, expressions in the singular form include the meaning of the plural form. In this description, expressions such as "include" or "comprise" are intended to refer to certain characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof, and should not be interpreted to exclude the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof other than those described.

[0035] Hereinafter, a sewage receiving tank with a pumping function will be described with reference to the attached drawings.

[0036] <First Embodiment>

[0037] As shown in FIGS. 1 and 2, the sewage receiving tank of the first embodiment may include a housing (10), a riser pipe (20), a connecting pipe (30), an insulating pipe (40), a pumping unit (50), a trap (60), and a manhole cover (80).

[0038] The housing (10) is configured at the very bottom as shown in FIG. 3 and provides support.

[0039] Additionally, the housing (10) may have a receiving space of a certain depth formed on the inside and may be in the shape of a container with an open top.

[0040] For example, the housing (10) may include a housing body (110) and a finishing cap (120).

[0041] The housing body (110) may be in the shape of a pipe with an internal opening. For example, the lower part of the housing body (110) may be square and the upper part may be circular, but is not limited thereto.

[0042] In addition, the housing body (110) has a receiving space formed inside that can accommodate wastewater, etc. by means of a finishing cap (120) assembled at the bottom.

[0043] Additionally, the housing body (110) may include an inlet (112) on one side that supports the inflow of wastewater and an outlet (114) on the other side that supports the discharge of wastewater.

[0044] The inlet (112) can be configured in multiple ways to support the inflow of wastewater from multiple directions.

[0045] The discharge port (114) can be configured as a single outlet so that wastewater flowing into the housing's receiving space can be drained in one direction.

[0046] The end cap (120) is configured at one end, for example, the bottom of the housing body (110), to support the formation of a receiving space inside the housing body (110).

[0047] In addition, the end cap (120) is assembled with the housing body (110) to lower the manufacturing cost through ease of manufacturing.

[0048] Additionally, the end cap (120) may be formed with rounding or chamfering, etc., so that one end can be easily inserted into the inside of the housing body (110).

[0049] As shown in FIG. 4, the riser tube (20) can be configured at the top of the housing (10) to support the gap between the ground and the housing (10).

[0050] In addition, the riser tube (20) may be in the shape of a hollow pipe.

[0051] Additionally, the vertical tube (20) may be configured with a support projection (210) that protrudes a certain length from one side of the interior.

[0052] The support projection (210) is formed to protrude a certain length from one side of the interior of the riser pipe (20) and provides a supporting force so that the insulation pipe (40) can be seated on its upper side.

[0053] Additionally, the vertical tube (20) may have a seating groove (220) of a certain depth formed inside at a position corresponding to the support projection (210).

[0054] The seating groove (220) is formed to a certain depth on the inner side so that a fixing force can be applied to the upper end of the insulation tube (40) seated on the support projection (210), thereby allowing the insulation tube (40) to be stably fixed inside the riser tube (20).

[0055] The riser tube (20) may include a stop ring (230) inserted into the seating groove (220).

[0056] The stopper ring (230) is seated in the seating groove (220) and supports the upper part of the insulation tube (40), which is configured to be supported by the support projection (210), by preventing it from moving upward, thereby supporting the insulation tube (40) to be fixed to the riser tube (20).

[0057] For example, the above-mentioned ring (230) may be formed in a circular ring shape and may have a shape in which a portion is cut at a certain interval.

[0058] As shown in FIG. 4, the connecting pipe (30) is configured between the housing (10) and the riser pipe (20) so that the riser pipe (20) can be stably fixed to the housing (10).

[0059] In addition, the connecting pipe (30) can be configured to be connected to a part of the housing (10) or the riser pipe (20) in a screw manner, thereby allowing the burial depth of the riser pipe (20) to be adjusted according to the burial depth of the sewage receiving tank.

[0060] As shown in FIG. 5, the insulating pipe (40) is configured inside the riser pipe (20) to prevent or delay the freezing of wastewater remaining inside the housing (10) or riser pipe (20) in sub-zero weather, thereby preventing interference with the flow of wastewater caused by freezing.

[0061] In addition, the insulation pipe (40) has an installation hole (410) formed on the inside that penetrates.

[0062] The installation hole (410) is formed to penetrate the center of the insulation pipe (40) with a certain size so that a pumping part (50) can be installed inside.

[0063] Additionally, the installation hole (410) can be divided into a stepped portion (412) and a through hole (414).

[0064] The step portion (412) is formed at a certain depth from the top to control the insertion depth of the pumping portion (50).

[0065] The through hole (414) is configured to penetrate downward from the center of the stepped portion (412), thereby forming a conduit so that the pumping force of the pumping portion (50) acts on the receiving space of the housing (10).

[0066] In addition, the insulation pipe (40) can be formed from a material that has insulation properties.

[0067] For example, the insulation tube (40) may be made of styrofoam, polyurethane foam, glass wool, mineral wool, vacuum insulation material, cellulose, phenolic foam, etc.

[0068] As shown in FIG. 6, the pumping unit (50) is configured inside the insulation pipe (40) and, when wastewater drainage is not smooth due to the accumulation of foreign substances, etc., it applies instantaneous air pressure to the receiving space of the housing (10) to induce the discharge of accumulated foreign substances, etc. through the discharge port (114).

[0069] Through this, the smooth drainage of wastewater flowing into the housing (10) prevents long-term blockage of the pipes and extends the dredging cycle, thereby reducing maintenance costs.

[0070] The pumping unit (50) includes a flange (510) and a piston (520).

[0071] The flange (510) is seated on the stepped portion (412) of the insulation pipe (40) and maintains a locked state, thereby allowing the pumping depth to be intermittent.

[0072] Additionally, the flange (510) includes a handle (512) that can be grasped by a worker.

[0073] The handle (512) is formed at a certain height from the top of the flange (510) to facilitate the worker's grip.

[0074] Through this, the worker can apply instantaneous air pressure to the receiving space of the housing (10) by pumping action by lifting while holding the handle (512).

[0075] The piston (520) is configured to be vertically movable inside the through hole (414) of the insulation tube (40), and as the operator moves it up and down by gripping the handle (512), it causes a change in pressure inside the through hole (414) and transmits instantaneous pressure to the receiving space of the housing (10).

[0076] Additionally, the piston (520) includes at least one piston ring (522).

[0077] The piston ring (522) is formed at least one along the longitudinal direction of the piston (520) so that airtightness is maintained between the piston (520) and the through hole (414).

[0078] Through this, pressure generation is smoothly achieved due to the airtightness between the piston (520) and the through hole (414) by the piston ring (522).

[0079] Additionally, the piston ring (522) may be made of soft rubber or silicone.

[0080] As shown in FIGS. 7 to 10, the trap (60) is configured in the inlet (112) of the housing (10) to prevent odors caused by sewage, etc. from flowing back through the inlet (112).

[0081] In addition, the trap (60) prevents wastewater or foreign substances from flowing back into the inlet (112), thereby allowing the pressure of the pumping unit (50) to easily act inside the housing (10), so that foreign substances can be easily discharged toward the outlet (114).

[0082] Additionally, the trap (60) may include a water-filled portion (610) inserted into the inlet (112) of the housing (10).

[0083] The water supply section (610) is inserted and fixed into the inlet (112) and functions as a conduit through which wastewater, etc., entering through the inlet (112) passes.

[0084] Additionally, the trap (60) may include a descending section (620) formed at a certain angle downward from the water section (610).

[0085] The descending section (620) is formed to extend downwardly at the end of the water section (610), thereby inducing a unidirectional flow of fluid and blocking backflow of odors and sewage.

[0086] Additionally, the lowering section (620) includes an overflow hole (622) that induces the sewage, etc. flowing in during heavy rain or a sudden surge in drainage load to bypass into the receiving space inside the housing (10) when the capacity of the lowering section (620) is exceeded.

[0087] Additionally, the lowering section (620) includes an opening and closing unit that prevents sewage or odor from flowing back through the perforated overflow hole (622).

[0088] For example, the opening and closing unit may be a flap valve (Flap Valve, 640).

[0089] Additionally, the lowering part (620) includes a sealing ring (624) that supports the overflow hole (622) to maintain watertightness when the overflow hole (622) is closed by an opening / closing unit, such as a flap valve (640).

[0090] Additionally, the lowering portion (620) includes a sealing mounting groove (626) that supports the seating of the sealing ring (624).

[0091] That is, the lowering part (620) has a sealed seating groove (626) having a certain depth formed on the outer circumference of the overflow hole (622), and a sealing ring (624) is seated in the sealed seating groove (626), thereby maintaining a watertight structure with excellent airtightness between the lowering part (620) and the flap valve (640) by means of the sealing ring (624).

[0092] The flap valve (640) controls the overflow hole (622) of the descending section (620) so that under normal circumstances, drainage is carried out through the descending section (620), and in an emergency, the overflow hole (622) is opened to induce rapid discharge, thereby preventing a rapid increase in water pressure within the pipe and blocking backflow to the upstream side and internal flooding.

[0093] The flap valve (640) includes a valve disc (642) that opens and closes the overflow hole (622).

[0094] The valve disc (642) is configured on one side of the outer circumference of the lowering part (620) to open and close the overflow hole (622), thereby inducing the opening of the overflow hole (622) only in emergency situations such as a sudden inflow of sewage.

[0095] Additionally, the valve disc (642) is formed to have a curved surface identical or similar to the outer circumference of the lowering portion (620), thereby ensuring a firm seal for the overflow hole (622).

[0096] Additionally, the valve disc (642) can be formed to be transparent or translucent so that the inside of the trap (60) can be easily identified from the outside.

[0097] Additionally, the flap valve (640) includes an impact guide (644).

[0098] The impact guide (644) is formed to protrude a certain length from the inner side of the valve disc (642) and positioned within the pipe of the lowering part (620).

[0099] Additionally, the impact guide (644) is positioned on the flow path of the wastewater flowing into the water section (610) and transmits the pressure caused by the direct collision of the wastewater to the valve disc (642) when the flow rate increases.

[0100] As a result, by converting not only the buoyancy caused by a simple rise in water level but also the dynamic pressure of the wastewater into an opening force, the opening responsiveness of the valve disc (642) is maximized and rapid discharge is induced.

[0101] Additionally, the impact guide (644) is positioned at the furthest distance from the hinge (646) described later, and by maximizing the rotational moment due to the dynamic water pressure of the wastewater according to the lever principle, the initial opening of the valve disc (642) is easily achieved even with low water pressure.

[0102] For example, the impact guide (644) can be formed to protrude a certain length from the inner lower side of the valve disc (642).

[0103] Additionally, the impact guide (644) can be formed integrally with the valve disc (642).

[0104] Additionally, the impact guide (644) can be reinforced by forming at least one rib between the valve disc (642) and the impact guide (644) to withstand the dynamic pressure of the wastewater.

[0105] The flap valve (640) includes a hinge (646) formed on one side of the valve disc (642).

[0106] A hinge (646) is configured on one side of the valve disc (642) to support the valve disc (642) so that it is hinge-coupled to one side of the lowering part (620).

[0107] For example, the hinge (646) can be formed on the upper part of the valve disc (642).

[0108] The flap valve (640) includes a spring (648) that causes an elastic restoring force to act on the valve disc (642).

[0109] The spring (648) applies elastic force to the valve disc (642) in the always-closed direction, thereby maintaining airtightness under normal conditions and inducing a sure return to the original position after emergency opening.

[0110] Additionally, the spring (648) can be configured on one side of the hinge (646).

[0111] Additionally, the spring (648) may be any one of a torsion spring, a tension spring, or a compression spring.

[0112] The flap valve (640) may include a catch (649) on the other side of the valve disc (642).

[0113] The locking hook (649) is formed to protrude a certain length from the other side of the valve disc (642) to support the valve disc (642) so that a worker can forcibly open it for maintenance.

[0114] Additionally, a catch (649) is formed on the outer circumference of the valve disc (642).

[0115] Additionally, the locking hook (649) is configured on the other end of the valve disc (642) opposite the hinge (646), so that the elastic force of the spring (648) can be overcome based on the principle of a lever and the valve disc (642) can be easily opened.

[0116] In some cases, the hook (649) can be omitted.

[0117] In summary, the flap valve (640) controls the overflow hole (642) of the lowering part (620), but under normal conditions, the valve disc (642) is closed by the elastic restoring force of the spring (648), thereby maintaining excellent airtightness and watertightness. When the amount of sewage inflow increases in an emergency, the dynamic water pressure of the sewage is concentrated on the impact guide (644), generating an opening force based on the lever principle, through which the valve disc (642) is quickly opened, effectively preventing the rise in water pressure and backflow within the pipeline.

[0118] Additionally, the trap (60) includes an ascending section (630) configured to form a conduit that rises from the descending section (620).

[0119] The rising portion (630) is formed to extend upward in a vertically symmetrical direction from the end of the descending portion (620).

[0120] Accordingly, a downwardly curved storage space is formed between the rising section (630) and the descending section (620) to constantly store a portion of the wastewater, and the resulting seal water seals the inside of the pipe, thereby performing the function of a barrier that physically blocks backflow of odors, etc.

[0121] A manhole cover (80) is configured at the top of the riser pipe (20) to open and close the riser pipe (20).

[0122] The operating state of the sewage receiving tank configured as described above is as follows.

[0123] First, when wastewater of a normal range or lower is introduced through the inlet (112), it is drained by passing through the water flow section (610), lowering section (620), and rising section (630) of the trap (60) configured in the inlet (112), thereby being received in the receiving space of the housing (10).

[0124] At this time, the wastewater flowing into the water flow section (610) of the trap (60) does not exert wastewater pressure on the overflow hole (622) formed on one side of the descending section (620), thereby keeping the valve disc (642) of the flap valve (640) that closed the overflow hole (622) in a closed state. Accordingly, the wastewater is received in the receiving space of the housing (10) through the trap (60).

[0125] And, when the wastewater contained in the receiving space of the housing (10) reaches a level where it can be discharged through the discharge port (114), it is drained to the outside through the discharge port (114).

[0126] Additionally, when the supply of wastewater entering the trap (60) through the inlet (112) is stopped, it remains in the storage section between the lowering section (620) and the rising section (640), thereby forming a water seal.

[0127] Meanwhile, as illustrated in FIG. 11, if the drainage of wastewater is obstructed by foreign matter accumulated inside the housing (10) through the use of the wastewater receiving unit, pressing downward while gripping the handle (512) of the pumping unit (50) causes the pressure inside the housing (10) to temporarily rise due to the airtightness between the through hole (414) of the insulation pipe (40) and the piston (520).

[0128] At this time, the pressure is prevented from being released toward the inlet (112), which is prevented from flowing back by the trap (60), and consequently, the pressure acts toward the open outlet (114), thereby discharging foreign matter along with the pressure through the outlet (114).

[0129] Depending on the case, the piston (520) of the pumping unit (50) may be raised and lowered repeatedly several times.

[0130] <Second Embodiment>

[0131] For components identical to the first embodiment, the same reference numerals are used, and a detailed description thereof is omitted.

[0132] The trap (60) of the second embodiment includes a vortex plate (650) that rotates the flow of wastewater in the storage section between the lowering section (620) and the rising section (630), as shown in FIG. 12.

[0133] The vortex plate (650) is formed in the reservoir section naturally formed by the structural characteristics of the downward descending section (620) and the upward ascending section (630), and performs a guide function that changes the characteristics of the fluid so that it rotates hydrodynamically.

[0134] For example, the vortex plate (650) is formed to extend a certain length at a downward angle of the descending part (620).

[0135] Additionally, the vortex plate (650) may be formed in a range not exceeding 1 / 2 of the reservoir section.

[0136] Also, the vortex plate (650) can be formed integrally with the trap (60).

[0137] In some cases, the vortex plate (650) may be configured to be attached to the trap (60) in a detachable manner.

[0138] Meanwhile, the wastewater flows straight through the water flow section (610) and the descending section (620), and when passing through the bending section of the storage section, a decrease in flow velocity occurs, which causes a problem in that drainage is not carried out smoothly.

[0139] To overcome this, if a vortex plate (650) is configured in the retention section, the wastewater forms a vortex that rotates in the retention section, which is a bent part, thereby maintaining the flow velocity of the wastewater and enabling smooth drainage.

[0140] In addition, the vortex plate (650) causes the vortex generated by rotation to strongly sweep across the inner wall of the pipe as it passes, thereby providing a cleaning effect that naturally cleans the inner wall of the pipe.

[0141] This means that, in the conventional case where the flow velocity is reduced in the storage section, the deposition of foreign substances may occur, but the deposition of foreign substances is fundamentally blocked by the vortex action of the vortex plate (650).

[0142] In addition, by extending the dredging cycle to prevent pipeline blockage in the long term through the fundamental prevention of such sediment, it is possible to reduce maintenance costs.

[0143] In addition, the vortex plate (650) controls the turbulence caused by the sudden change in direction, thereby allowing the wastewater to be drained without stagnation, and thus enabling a smooth flow of wastewater.

[0144] <Third Embodiment>

[0145] For configurations identical to those in the first and second embodiments, the same reference numerals are used, and a detailed description thereof is omitted.

[0146] As shown in FIGS. 13 to 16, the trap (60) of the third embodiment includes a vortex forming part (660) configured on one side of the trap (60) to induce the inflowing wastewater to form a vortex, thereby supporting smooth drainage.

[0147] The vortex forming part (660) is configured on one side of the trap (60) and induces the formation of a vortex inside the trap (60).

[0148] In addition, the vortex forming part (660) is assembled to be detachably attached to one side of the trap (60), thereby reinforcing the strength of the trap (60) and improving overall durability.

[0149] Additionally, the vortex forming part (660) includes a settling plate (662) and a vortex settling plate (664).

[0150] The mounting plate (662) is configured to be mounted on the water section (610).

[0151] Additionally, the mounting plate (662) includes a mounting projection (663) that protrudes a certain length from the bottom.

[0152] The mounting projection (663) is formed to protrude from the bottom of the mounting plate (662) so as to be caught on the water section (610), thereby improving the fixing force of the mounting plate (662) to the water section (610).

[0153] In this case, the water portion (610) includes a projection seating groove (612) formed to have a position and depth corresponding to the seating projection (663).

[0154] In some cases, the water portion (610) may be configured so that the mounting projection (663) of the mounting plate (662) is caught at the end of the water portion (610) without forming a projection mounting groove (612).

[0155] The vortex settling plate (664) is formed to correspond to one side of the descending section (620) to support the formation of a vortex in the wastewater flowing in through the descending section (620).

[0156] Additionally, the vortex settling plate (664) may be formed with an angle of inclination identical or similar to that of the descending part (620).

[0157] Alternatively, the vortex settling plate (664) may have a curved cross-section, such as a streamlined shape, so that a vortex can be generated in the wastewater flowing into the lowering section (620).

[0158] Additionally, the vortex settling plate (664) includes at least one guiding projection (666) formed along the longitudinal direction with a certain length and height.

[0159] The induction projection (666) is formed on the vortex settling plate (664) at a certain height and length to induce the inflow of wastewater, thereby supporting the formation of a vortex.

[0160] In addition, the guiding projection (666) can be formed at a certain angle of inclination as shown in FIG. 14.

[0161] Additionally, the vortex forming part (660) includes an adhesive layer (668) to maintain a state of being firmly fixed to the trap (60).

[0162] That is, the adhesive layer (668) is formed by applying an adhesive of a certain thickness between the inner surface of the trap (60) and the vortex-forming part (660), and firmly adheres and fixes the vortex-forming part (660) to the correct position inside the trap (60).

[0163] <Fourth Embodiment>

[0164] For components identical to those in the first to third embodiments, the same reference numerals are used, and a detailed description thereof is omitted.

[0165] As shown in FIGS. 17 to 19, the wastewater receiving of the fourth embodiment may include a check module (70) configured in the discharge port (114) of the housing (10) to prevent backflow of wastewater drained through the discharge port (114).

[0166] The check module (70) may include a module body (710), a check plate (720), a second hinge (730), a second spring (740), and a fixing cover (750).

[0167] The module body (710) can be configured to be fixed to one end of the discharge port (114).

[0168] In this case, the module body (710) may have a step (712) formed thereon so that one end is inserted into the discharge port (114) and the other end is kept in close contact with the end of the discharge port (114).

[0169] Additionally, the module body (710) may include a drain hole (714) formed to penetrate the center so that wastewater can be drained.

[0170] The check plate (720) is configured in the drain hole (714) of the module body (710) to support the drainage of wastewater and to perform a shielding function that can block backflow.

[0171] The second hinge (730) is configured on one side of the module body (710) and the check plate (720) to support the check plate (720) so that it can rotate.

[0172] The second spring (740) is configured between the module body (710) and the check plate (720) to provide elastic force so that when wastewater is drained, the check plate (720) rotates in an open direction around the second hinge (730), and when the drainage of wastewater stops, the check plate (720) returns to its original position.

[0173] The fixed cover (750) is configured at one end of the module body (710) and can perform a stopper function to prevent the check plate (720) from rotating in the reverse direction.

[0174] The check module (70) configured as above allows wastewater entering through the inlet (112) of the housing (10) to be drained toward the outlet (114), and at this time, the check plate (720) rotates around the second hinge (730) by the drained wastewater, thereby allowing the wastewater to be drained smoothly.

[0175] And, when the inflow of wastewater stops, the check plate (720) returns to its original position around the second hinge (730) by the elastic force of the second spring (740).

[0176] Meanwhile, if the wastewater flows back in the reverse direction, the check plate (720) is prevented from rotating in the reverse direction by the fixing force of the fixed cover (750), thereby preventing the backflow of the wastewater.

[0177] The above description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments expressed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of rights of the present invention is not limited by such embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts that are equivalent or within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0178] 10: Housing 110: Housing body 112: Inlet 114: Outlet 120: Closing cap 20: Vertical tube 210: Support projection 220: Seating groove 230: Intermittent ring 30: Fitting pipe 40: Insulation pipe 410: Installer 412: Step section 414: Penetrating hole 50: Pumping section 510: Flange 512: Handle 520: Piston 522: Piston ring 60: Trap 610: Water part 612: Protrusion seating groove 620: Descent section 622: Overflow hole 624: Sealing ring 626: Sealing mounting groove 630: Rising section 640: Flap valve 642: Valve disc 644: Impact guide 646: Hinge 648: Spring 649: Hook 650: Vortex plate 660: Vortex forming part 662: Seating plate 663: Settling projection 664: Vortex settling plate 666: Induction projection 70: Check module 710: Check Module 712: Step 714: Drainage 720: Checkerboard 730: 2nd hinge 740: 2nd spring 750: Fixed cover 80: Manhole cover

Claims

Claim 1 A sewage receiving device characterized by comprising: a housing having an inlet for sewage to flow in on one side and an outlet for sewage to be discharged on the other side, and having a receiving space for receiving sewage inside; a trap for preventing backflow of odors, comprising a water flow section connected to the inlet, a descending section for moving the inflowed sewage downward, and an ascending section for moving the inflowed sewage upward, wherein an overflow hole is formed on one side of the descending section of the trap to bypass the sewage into the receiving space of the housing when the amount of sewage flowing in exceeds a set range, and an opening / closing unit is provided in the overflow hole to open / close the overflow hole according to the sewage pressure inside the descending section; and a vortex forming section for inducing the formation of a vortex of sewage is detachably coupled inside the trap, wherein the vortex forming section includes a settling plate seated on the inner side of the inlet and a vortex settling plate extending along the inner surface of the descending section. Claim 2 A sewage receiving device according to claim 1, wherein the opening / closing unit is composed of a flap valve, the flap valve comprises a valve disc covering the overflow hole; and a hinge coupled to the upper end of the valve disc to support rotation, and wherein the valve disc is configured to maintain a closed state under normal conditions and open upon pressure generated when sewage flows in. Claim 3 A sewage receiving device according to paragraph 2, characterized in that an impact guide protruding a certain length into the lowering portion is formed on the inner surface of the valve disc, and receives the dynamic pressure of the incoming sewage to promote the opening of the valve disc. Claim 4 A sewage receiving device according to paragraph 2, further characterized in that a protruding locking hook is provided on one side of the outer surface of the valve disc to allow a worker to forcibly open the valve disc during maintenance. Claim 5 A sewage receiving device according to paragraph 2, characterized in that a sealing mounting groove is formed on the outer circumference of the overflow hole of the lowering part, and a sealing ring is inserted into the sealing mounting groove to maintain watertightness when the valve disc is closed. Claim 6 A sewage receiving device according to claim 1, characterized in that a vortex plate is integrally formed in the storage section between the lowering part and the rising part of the trap to prevent a decrease in flow velocity and the deposition of foreign substances by rotating the flow of incoming sewage to form a vortex. Claim 7 delete Claim 8 A wastewater receiving device according to claim 1, characterized in that a plurality of guiding protrusions formed at an angle on the surface of the vortex set-off plate to guide the flow of wastewater and generate rotational force are formed protrudingly. Claim 9 A sewage receiving device according to claim 1, characterized in that a riser pipe extending to the ground is coupled to the upper part of the housing, an insulating pipe for preventing freezing is inserted inside the riser pipe, and a pumping unit that applies air pressure into the housing to induce the discharge of foreign substances is provided inside the insulating pipe. Claim 10 In claim 9, the pumping part is characterized by comprising: a flange having a handle that can be grasped by a worker; and a piston that moves up and down in close contact with the inner circumference of the insulating pipe and generates pressure. Claim 11 A sewage receiving device according to claim 1, wherein a check module is installed on the inner side of the discharge port to block backflow of sewage from the outside, and the check module comprises a check plate hinged so as to be rotatable only in the discharge direction; and a spring elastically supporting the check plate in the closing direction.

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