REINFORCEMENT VALVE FOR PREVENTING BACKFLOW IN DRAIN TRAP

Abstract

The present invention relates to a reinforcement valve for preventing a backflow in a drain trap, which can be additionally installed inside a drain trap, which can perform the air backflow phenomenon pre-contributing to the quality of the quality of the drain trap and to performance improvement thereof, and which always has the best backflow blocking function regardless of a strong air pressure generated inside the drain trap and any change thereof. A conventional drain trap has a water gathering portion (20) formed beneath a trap body (10); an inflow-side drain tube (30) and a discharged-side drain tube (40) are connected to one side and the other side thereof, respectively, such that draining occurs therethrough; a blocking membrane (60) is configured between the water inflow opening (31) And the water discharge opening (41); and a water drain hole (51) is bored between the blocking membrane (60) and the bottom surface inside the trap body (10). Th e present invention is configured by installing a backflow-preventing reinforcement valve (100) on the front side of the blocking membrane (60), in which the water drain hole (51) is formed, such that, when water is drained from the corresponding household, the same is automatically opened by the water pressure, thereby allowing water to drain, and, when water draining is completed, the same is automatically closed by self-weight, thereby guaranteeing, through control, that, even if a strong air flow is introduced into the drain trap, no backflow of air occurs.

Claims

1. On the underside of the trap body (10), a water gathering portion (20) is formed that can hold a certain amount of water. On one side and the other side of the water gathering (20) mentioned above, an inflow-side drain tube (30) containing a water inflow opening (31) to allow drainage of water to flow in is connected with the discharged-side drain tube (40) containing water discharge opening (41) to allow the inflow of water to be discharged outwards. In addition, between the water inflow opening (31) mentioned above and the water discharge opening (41) consists of a blocking membrane (60) locked to a certain depth from the surface of the water pooled in the water gathering portion (20). Between the inner floor of the blocking membrane (60) and the trap body (10), a water drain hole (51) with a certain size is drilled, so in principle, it is impossible to reverse the odor due to the water gushed in the water gathering portion (20) mentioned above. On the front of the blocking membrane (60) mentioned in which the above water drain hole (51) is formed, the water is automatically opened according to the water pressure when the water is drained from the corresponding generation. An additional reinforcement valve (100) is installed to prevent backflow, which allows drainage but automatically closes by the gravity even if a strong airflow is introduced after drainage and controls the flow of air into the drainage trap to prevent the backflow of air.

2. In the claim 1, The backflow-preventing reinforcement valve (100) may be made of metal or plastic material and is constructed with the support (61,101) drilled with a hinge hole (61a, 101a) at the top and at the frontside of the blocking membrane (60) at the corresponding location. With the counteracting effect from each other constructed, a hinge pin (102) is inserted to enable free rotational motion.

3. In the claim 1, In the backflow-preventing reinforcement valve (100), The outer perimeter is formed with a cover (111) with a constant thickness and consists of an empty vent (110), which is allocated a constant volume of free space (112). The suction force groove (120) was then drilled in the upper part of the empty vent (110) to allow the suction force to affect the inner cavity (112) of the reinforcing valve (100) for preventing foul backflow. In addition, at the bottom of the upper part of the empty vent (110) mentioned above, water inflow grooves (130) that provide a path for a certain amount of water to flow into the inner cavity (112) according to the to the suction force were formed. These are the features of the backflow-preventing reinforcement valve in the drain trap.

4. In the claim 3, Among the suction force groove (120) and the water inflow grooves (130) formed at the front top of the empty vent (110) where the inner cavity (112) mentioned above is allocated, Compared to the suction force flow (120) mentioned above, water inflow grooves (130) were formed in larger sizes. In doing so, this backflow-preventing reinforcement valve gained the feature of allowing water to flow more effectively through the water inflow grooves (130) mentioned above.

5. In the claim 3, On the inner side between the above suction force groove (120) and the water inflow groove (130), A backflow-preventing reinforcement valve of drainage traps is characterized by the formation of a water suction induced section (141), which induces suction power by blocking some of the inner cavity (112) with a demarcation membrane (140).

6. In the claim 5, In case of a demarcation membrane (140) blocking between the suction force groove (120) and the water inflow groove (130) to form a water suction induced section (141), which induces the suction force, the feature of the backflow-preventing reinforcement valve in the drain trap acts like below. On the upper and lower parts of the front section of the empty vent (110), there exists one or more water outlet (140) and air hole (150) are added to secure the path through the remainder of the empty vent (110) of the inner cavity (112) except the suction force groove (120) and the water inflow grooves (130).

Description

BRIEF DESCRIPTION OF THE DRAWING

[0015] Drawing 1 shows the internal structure of a typical drainage trap.

[0016] Drawing 2 shows the structure of the drainage trap with the name of the backflow-preventing reinforcement valve (100) for reverse flow prevention as proposed in this invention.

[0017] Drawing 3 shows the structure diagram showing an example of the backflow-preventing reinforcement valve (100) for reverse flow prevention provided in this invention

[0018] Drawing 4 shows another example of the backflow-preventing reinforcement valve (100) is shown in this invention.

[0019] Drawing 5 shows another example of the backflow-preventing reinforcement valve (100) is shown in this invention.

[0020] Drawing 6 presents a perspective view of the Drawing 5

[0021] Drawing 7 is a sectional perspective view of the Drawing 6

[0022] Drawing 8 is a reference drawing to multi-stage installation of branch pipe and drainage traps in standpipes.

SPECIFICATION TO CARRY OUT THE INVENTION

[0023] On the underside of the trap body (10), a water gathering portion (20), which can hold a certain amount of water, is formed. On one side of the upper part of the water gathering portion (20) mentioned above and on the other side, the inflow-side drain tube (30) containing a water inflow opening (31) and a discharged-side drain tube (40) containing a water discharge opening (41) are connected so that it can be discharged from the outside. Between the above water inflow opening (31) and the water discharge opening (41), there is a blocking membrane (60) locked to a certain depth from the surface of the water in the water gathering portion (20), and a water drain hole (51) of a certain size is drilled between the inner floor of the blocking membrane (60) and the trap body (10). Accordingly, it is normally a drainage trap that prevents reverse flow of odour due to the water that has been steamed in the water gathering portion (20) above.

[0024] On the front of the blocking membrane (60) formed by the water drain hole (51) mentioned above was characterized by the installation of an additional backflow-preventing reinforcement valve (100), which automatically opens according to the pressure of the water when the water is drained from the corresponding generation, allowing drainage but automatically closes by the gravity after drainage was completed, to prevent a strong flow of air into the drain trap from appearing.

[0025] Drawings 70 and 71 of the attached drawings shall be those for inspection tools and their lid joining screws that are opened and used when internal repair or inspection is required.

[0026] In addition, the backflow-preventing reinforcement valve (100) mentioned above may be made of various materials such as metal or plastic. Individual support joint (61, 101) drilled with the hinge holes (61a, 101a) shall be constructed at the blocking membrane (60) of the upper body and the corresponding location and each support joint shall be fitted together thus to complete hinge combination structure, a hinge pin (102) is inserted to allow free rotational motion.

[0027] Therefore, the backflow-preventing reinforcement valve (100) allows drainage by automatically opening the water pressure when water enters through the water inflow opening (31) mentioned above, but when drainage is finished, the water drain hole (51) is blocked by the magnetic pressure, thus preventing the backflow of air containing the odor from entering the drain trap (A) more completely.

[0028] In other words, when strong air pressure was introduced into the drainage trap (A), the pooled water would severely flow for the water resistance to be overcame and the air (including the odour) was often reversed.

[0029] If the backflow-preventing reinforcement valve (100) mentioned above is installed to automatically block the water drain hole (51) as shown above, the pressure of the water drain trap (A) will push the pressure of the backflow-preventing reinforcement valve (100) to make it more tight. For this reason, it is a useful invention that, even if strong air pressure is introduced into the drainage trap (A), backflow of air cannot appear in principle, and the damage caused by backflow can also be prevented more effectively.

[0030] However, the backflow-preventing reinforcement valve (100) is closed more strongly by the pressure in the drain trap and cannot show a reverse flow.

[0031] Conversely, if the strong suction force is exerted by the flow of air flowing outward (internal to external), rather than by the introduction of air pressure;

[0032] Depending on the suction force, the backflow-preventing reinforcement valve (100) is temporarily opened to the suction force, and reflux phenomenon can occur.

[0033] Therefore, in this invention, the backflow-preventing reinforcement valve (100) can be conceived as mentioned above.

[0034] As illustrated in drawing 3, the outer perimeter is formed with a cover of consistent thickness (111) and configured with the empty vent (110) therein continuous volume of inner cavity (112) assigned to the enclosed interior.

[0035] At the top of the upper section of the empty vent (110) mentioned above, the suction force groove (120) allows the suction force to affect the inner cavity (112) of the backflow-preventing reinforcement valve (100) mentioned above.

[0036] The design of the lower part of the upper part of the empty vent (110) may be more desirable if the structure is designed with a water inlet groove (130) that provides a certain amount of water to flow into the inner cavity (112), depending on the suction force.

[0037] In this case, if a strong suction force of air in the drain trap (A) affects the inlet force groove (120) at the top of the empty vent (110) above mentioned, the weight of the backflow-preventing reinforcement valve (100) for preventing reflux will be increased through the bottom of the water inflow groove (130), thus increasing the weight of the backflow-preventing reinforcement valve (100), while also offsetting the intake force of the water from flowing more tightly back into the backflow-preventing reinforcement valve (100).

[0038] Even if a strong suction force of air is generated within the drainage trap (A), the possibilities of the backflow-preventing reinforcement valve (100) to be opened and the reflux of the air including the odour to be occurred are fundamentally and completely prevented in this invention.

[0039] In the end, the backflow-preventing reinforcement valve (100) is configured as a rapid empty vent (110) assigned with an inner cavity (112). The structure of that is formed by placing the suction force groove (120) and the water inflow groove (130) respectively at the top and bottom of the valve.

[0040] The backflow-preventing reinforcement valve (100) is opened only upon drainage. Regardless of the absence of changes in the air pressure after drainage as well as a sudden amount of strong air flow is introduced to the drainage trap (A) or a strong suction force of the air occurs, the closing effect of the backflow-preventing reinforcement valve (100) always remains to be maintained and prevent potential damages of odour exposure from the fundamental phase.

[0041] Furthermore, the suction force groove (120) formed on the front top of the empty vent (110) and the water inflow groove (130) formed at the bottom of the suction force groove (120) allocated to the inner cavity (112) was formed to form larger water inflow groove (130) than the corresponding suction force groove (120) to make the water flow through the stream flow groove (130) more efficient.

[0042] Inside the suction force groove (120) allocated to the inner cavity (112) mentioned above and water flow groove (130) are blocked by a pair of compartment membrane (140,140) to create a water suction induced section (141), which induces the suction force, which is more effective and faster to achieve

[0043] In addition, if a compartment membrane (140,140) is closed between the suction force groove (120) and the water inflow grooves (130) to induce the suction force and to form a water suction induced section (141) for better water reduction,

[0044] On the upper and lower parts of the empty vent (110), more than one of additional water inlet (140) and the air hole (150) are to be installed besides the existence of suction force groove (120) mentioned above and water inflow groove (130). The water inlet and the air hole are constructed to the rest of the inner cavity (112) inside the empty vent (110).

[0045] As a certain amount of water is filled in the remaining inner cavity (112) inside the empty vent (110), excluding the water suction induced section (141), the weight is added to prevent the opening of backflow-preventing reinforcement valve (100). At the same time, when the reinforcement valve (100) for preventing backflow opens due to water pressure during drainage, the weight is reduced to increase the efficiency of the opening. After drainage, when the reinforcement valve (100) for prevention of backflow is closed, the water is re-inflated and the closing function can be performed more effectively by increasing the weight.

[0046] In other words, the water outlet (140) and the air hole (150) may act in part when a high pressure air is introduced or a strong intake force of air is generated, but rather, when the backflow-preventing reinforcement valve (100) is opened and closed, water is discharged (intensified and buoyant) and the inflow (increased) to maximize the heat and closing efficiency.

[0047] As described, the backflow-preventing reinforcement valve of the drainage trap of this invention is opened by water pressure during drainage, allowing drainage.

[0048] Regardless of any changes in air pressure after the drainage has been completed, as well as the introduction of strong pressure into the drainage trap (A), or the occurrence of strong intake force of air,

[0049] Since the closing function of the backflow-preventing reinforcement valve (100) mentioned above can always be maintained, it is a useful invention that can be equipped with the counterflow prevention function of air containing odour more perfectly.

[0050] Moreover, it is a useful invention to prevent damage caused by odour by automatically sucking the corresponding amount of water from the pressure to maintain the closing force, especially when the pressure is applied.

EXPLANATION ON DRAWINGS

[0051]

TABLE-US-00001 10: a trap body 20: a water gathering portion 31: Inlet 30: Inflow Side Drainage 41: Water drain 40: District pipe on the discharge side 20: Materials 60: Cut-off 51: Water Drainage Hall 100: a backflow-preventing reinforcement valve