KR101689676B1

KR101689676B1 - Device for prevention backflow of toilet water tank

Info

Publication number: KR101689676B1
Application number: KR1020150089357A
Authority: KR
Inventors: 정미주
Original assignee: 정미주
Priority date: 2015-06-23
Filing date: 2015-06-23
Publication date: 2016-12-26

Abstract

The present invention is capable of preventing backflow into the washing water tank such as air or washing water through a relatively simple structure and is easy to manufacture and can be installed without major modification to the existing toilet bowl, And it is possible to use a normal toilet bowl in normal times. In addition, the user can perform a single operation The present invention relates to a counterflow prevention device for a toilet that maximizes user convenience by preventing backflow easily through a water tank, and a lower end is fixedly installed on the bottom of a water tank, and an opening / closing door for supplying / A support hinged to the lower portion and made of a hollow cylindrical shape, An upper and lower flow bar which is movable up and down by the guiding means but is restricted in lateral movement and pivoting movement, a pivoting bar installed on the outside of the support and rotatably mounted about the support, The other side of which is hinged to one side of the pivoting bar and is provided with a length adjusting means to change the length of the connecting bar; And a restricting means for restricting the rotation of the rotating shaft.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing backflow of a toilet,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backflow prevention device for a toilet, and more particularly, to a backflow prevention device for a toilet in order to prevent backflow of air or the like to a water tank of a toilet when an outlet trap of a toilet bowl is blocked.

Generally, when dirt is trapped in the discharge trap in the toilet, there is a problem that air or washing water in the water tank flows back to the washing bowl.

As a technique for solving this problem, Korean Patent Registration No. 10-0901186 (published on June 4, 2009) relates to a toilet bowl having a check valve for preventing a backflow between a washing bowl and a water tank, and discharges washing water from the toilet bowl A reverse flow prevention plate is provided at a lower portion of the opening and closing port, and a normally closed state is maintained by gravity. When the washing water of the water tank is drained and flowed, it is opened by a fluid flow. So that the running state can be maintained even if a back flow is generated while the running state is maintained.

However, such a conventional technique has a problem that the backflow prevention plate hinders the smooth supply of the washing water when supplying the washing water, is highly likely to be damaged by the water pressure, and the installation position is located in a structurally complicated part and the direction must be correct.

Korean Registered Patent Publication No. 10-0901186 (issued on June 4, 2009)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a counterflow preventing device for a toilet that can prevent backflow of air or washing water into a washing tub through a relatively simple structure .

In addition, the present invention is intended to provide a backflow preventing device for a toilet which can be easily manufactured, can be installed without adding a large change to the existing toilet bowl, and can be applied to various kinds of toilet flushers, There is a purpose.

Further, according to the present invention, it is possible to use a normal toilet bowl in a normal situation, by using a structure capable of absorbing an impact applied by a door opening or the like. In addition, And to provide a counterflow preventing device for a toilet that maximizes user convenience.

As a means for solving the above problems, the present invention relates to a backflow prevention device for a toilet,

A support vertically installed in the water tank, a lower end fixedly installed on the bottom of the water tank, an opening / closing port hinged to the lower portion for supplying and blocking the washing water into the bowl,

An upper and lower flow bar which is disposed in parallel with the support and is movable up and down by the guide means but whose lateral movement and rotation are restricted,

A rotation bar installed on the outside of the support body so as to be rotatable about the support body,

A connecting bar hinged to the upper end of the upper and lower flow bars, hinged to one side of the lower end of the pivoting bar,

And restricting means provided on the upper portion of the support on the opposite side of the upper and lower flow bars to restrict rotation of the rotation bar.

Further, it may further comprise an opening / closing member provided inside the support body to open and close the passage of the support body,

And the rotation bar is fixed to the rotation shaft of the open / close side and rotates to adjust the open / close side.

In addition,

A closed loop type guide member having the same hole as the cross section of the upper and lower flow bars and

And a bracket for fixing the guide member to the support body.

In addition,

The connection bar is separated from the one connection bar and the other connection bar,

A hollow portion is provided in the one connection bar and the other connection bar is inserted into the hollow portion,

And an elastic member is provided inside the hollow portion.

In addition,

A groove that opens toward the downward direction, and

And protrusions formed on both side walls of the inlet portion of the groove.

In addition, the groove is located at a position where the other end of the pivot bar can be gripped when the pivot bar is disposed horizontally.

In addition, when the pivot bar is disposed horizontally, the upper and lower flow bars press the opening and closing port to maintain the closed state.

According to the above-mentioned problem solving means, it is possible to prevent reverse flow of air or washing water into the washing water tank through a relatively simple structure, and to easily produce the toilet water, And can be applied to various types of toilet flushes. Also, it is possible to reduce the occurrence of faults by adopting a structure capable of absorbing the impact applied by the opening / closing port, etc. In general, use of a normal toilet It is possible to prevent the backflow of the air or the like easily by a single operation of the user.

FIG. 1 is a view showing a configuration in which a counterflow prevention device for a toilet according to the present invention is installed in a toilet. FIG.
2 is a perspective view showing a main part of a backflow prevention device for a toilet according to the present invention.
3 is a front view showing a main part of a backflow prevention device for a toilet according to the present invention.
4 is a schematic cross-sectional view showing a main part of a backflow prevention device for a toilet according to the present invention.
5 is a side view showing a main part of a backflow prevention device for a toilet according to the present invention.
6 is a cross-sectional view illustrating the operation of the ball valve, which is the main part of the counterflow prevention device for a toilet according to the present invention.
Fig. 7 is a partial perspective view showing the coupling relationship between the rotation bar and the ball valve in the backflow prevention device for a toilet according to the present invention. Fig.
8 is a front view showing a main part of another embodiment of a counterflow prevention device for a toilet according to the present invention.

A preferred embodiment of a counterflow preventing device for a toilet according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the explanation, the clogging phenomenon of the trap of the toilet bowl is disclosed in many patent documents as well as the cause and reason thereof, and is also described in detail in the above-mentioned prior art documents. And explain the solution and the specific composition of the invention.

FIG. 2 is a perspective view illustrating a main part of a backflow prevention device for a toilet according to the present invention, and FIG. 3 is a perspective view of a toilet seat according to the present invention. FIG. FIG. 4 is a schematic cross-sectional view showing a main part of a backflow prevention device for a toilet according to the present invention, and FIG. 5 is a perspective view of a main part of a backflow prevention device for a toilet according to the present invention FIG. 6 is a cross-sectional view illustrating an operation process of a ball valve as a main part of a counterflow prevention device for a toilet according to the present invention. FIG. 7 is a cross- And FIG. 8 is a front view showing a main part of another embodiment of a counterflow prevention device for a toilet according to the present invention.

1 to 6, the backflow prevention device for a toilet according to the present invention includes a supporting body 10, a vertically movable bar 20, a rotating bar 30, a connecting bar 40, a restricting means 50, .

As shown in FIG. 1, the support 10 generally includes a cleaning water tank (simply referred to as a 'water tank') of a toilet, A hollow cylindrical member in which a lower end portion is fixedly installed on the bottom of the water tank and an opening and closing port 11 for supplying and blocking the washing water in the water tank into and out of the bowl is hinged to the lower portion.

The support 10 may be a hollow cylindrical water supply pipe having a lower end thereof connected to an external fresh water pipe (tap water) and an upper portion thereof opened to supply wash water to the inside of the water tank, Or a hollow cylinder having an open upper part connected to the sewage pipe and discharging excess washing water in the water tank to the outside, or may be a separate pipe body.

The upper and lower flow bars 20 are disposed parallel to the support 10 and positioned at upper points of the opening and closing ports 11 and are movable up and down by guide means, to be. Therefore, when the upper and lower flow bars 20 move downward, the upper and lower flow bars 20 come into contact with the upper surface of the opening and closing port 11.

The guide means includes a closed loop type guide member 21 having the same hole as that of the upper and lower flow bars 20 and a bracket 22 for fixing the guide member 21 to the support member 10. [ In FIG. 2, a ring shape is shown. However, the ring shape is not limited thereto and may be formed in various shapes. A plurality of the guide members 21 and the brackets 22 may be installed and the upper and lower flow bars 20 are inserted into the holes of the guide member 21 to move up and down.

The pivot bar 30 is installed on the outer side of the support body 10 so as to be rotatable about the support body 10.

The connecting bar 40 is hinged to one end of the upper and lower flow bars 20 and the other is hinged to one side of the rotating bar 30, And the like.

For example, the length adjusting means may be configured to separate the connecting bar 40 into one connecting bar 41 and the other connecting bar 42, and a hollow portion may be provided in the one connecting bar 41, And an elastic member 43 is provided in the hollow portion of the one side connecting bar 41. The connecting bar 40 is connected to the connecting bar 40 through the length adjusting means, So that the pivoting bar 30 can be easily pivoted in accordance with the vertical movement of the upper and lower flow bars 20. The elastic member 43 is configured such that the other connecting bar 42 is connected to the one connecting bar 41 and the upper and lower flow bars 20 are lowered to contact the opening and closing port 11 and then pressurized, even if an impact force acts on the opening and closing port 11 {Actually clogging of the boiler trap occurred When pressure is applied by using a tool such as the compression means K shown in FIG. 1, this pressure acts as an impact force on the door 11, so that it can be absorbed sufficiently to prevent breakage of the connecting hinge portion .

The restricting means 50 is provided on the upper side of the support 10 on the opposite side of the upper and lower flow bars 20 to limit the rotation of the pivoting bar 30. More specifically, The upper and lower flow bars 20 are lowered to press the opening and closing port 11 to suppress the opening of the opening and closing port 11. The rotation of the rotating bar 30 is restricted.

Specifically, the limiting means 50 includes a groove 51 opened toward the lower side and a protrusion 52 formed inside the side walls of the inlet 51 of the groove 51, The other end of the rotation bar 30 is located on the upper side of the protrusion 52 in the groove 51 so that the rotation of the rotation bar 30 is limited by the protrusion 52 on the upper side and on the lower side of the groove 51 .

It is preferable that the groove 51 is positioned at a position where the rotation bar 30 can grip the other end of the rotation bar 30 when the rotation bar 30 is horizontally disposed.

The supporting member 10 is further provided with an opening and closing side B which is installed inside the supporting member 10 to open and close the passage in the water tank through the supporting member 10 Valve.

In this case, the pivoting bar 30 is provided on the outside of the support body 10, and is configured to adjust opening and closing of the opening / closing side B while being fixed to the rotation shaft of the opening / closing side B and rotating.

Specifically, as shown in FIGS. 6 and 7, when the pivot bar 30 is in the horizontal state, the open / close side B is kept closed. In the vertical state, the open state is maintained .

Accordingly, when the ball trap is pushed through the compressor (K) or the like in order to pierce the clogging, it is possible to block back flow of air or the like into the water tank.

As shown in Figs. 6 and 7, the opening / closing side B is preferably a ball valve B, but is not limited thereto.

As described above, when the pivot bar 30 is disposed horizontally, the upper and lower flow bars 20 may be configured to press the opening / closing port 11 to maintain the closed state.

The operation of the backflow prevention device for a toilet according to the present invention will now be described.

In the backflow prevention device for a toilet according to the present invention, the rotary bar 30 maintains a vertical state in a normal state, so that the upper and lower flow bars 20 are maintained in the maximally elevated state, and the opening / And the flow bar 20 maintains a state in which no restriction is imposed on opening and closing.

However, when clogging occurs in the bowl trap of the toilet, the user pushes one end of the rotating bar 30 among the counterflow preventing devices of the toilet according to the present invention installed inside the water tank in which the washing water is stored, . At this time, the other end of the pivoting bar 30 penetrates the projecting portion 52 formed in the groove 51 by pressure, and is positioned in the groove 51, so that the rotation of the pivoting bar 30 is restricted.

When the rotary bar 30 rotates in the horizontal state in this way, the upper and lower flow bar 20 is lowered to press the opening / closing port 11, thereby keeping the opening / closing port 11 in a closed state. At this time, When the bowl trap is pressurized using a compressor or the like, the backflow of air or the like through the opening / closing port 11 is prevented.

When the clogging is released, the user can return to the normal state simply by rotating the rotation bar 30 and maintaining the vertical state.

8, the upper and lower flow bars 20 are connected to the upper and lower flow bars 20-1 and 20-1, respectively, as shown in FIG. 8, The upper and lower flow bars 20-1 and 20-2 may be divided into a lower and a lower flow bar 20-2. At this time, one of the pair of the upper and lower flow bars 20-1 and 20-2 may be inserted into the other, The elastic member 43 is positioned between the upper upper and lower flow bars 20-1 and the lower upper and lower flow bars 20-2.

According to the above-described configuration, the backflow prevention device for a toilet according to the present invention can prevent reverse flow of air or washing water into the washing water tank through a relatively simple structure, and is easy to manufacture, It can be installed without any modification, and can be applied to various kinds of toilet flushers. In addition, there is little occurrence of trouble due to adoption of a structure capable of absorbing impact applied to the opening / closing port (11) It is possible to use a normal toilet, and when necessary, the user can easily prevent backflow through a single operation.

10: Support 11:
20: upper and lower flow bar 21: guide member
22: Bracket
30: Rotating bar
40: connecting bar 41: one connecting bar
42: other side connecting bar 43: elastic member
50: limiting means 51: groove
52: protrusion

Claims

A support vertically installed in the water tank, a lower end fixedly installed on the bottom of the water tank, an opening / closing port hinged to the lower portion for supplying and blocking the washing water into the bowl,
An upper and lower flow bar which is disposed in parallel with the support and is movable up and down by the guide means but whose lateral movement and rotation are restricted,
A rotation bar installed on the outside of the support body so as to be rotatable about the support body,
A connecting bar hinged to the upper end of the upper and lower flow bars, hinged to one side of the lower end of the pivoting bar,
And restricting means provided on the upper portion of the support on the opposite side of the up-and-down moving bar to restrict rotation of the pivoting bar.
Backflow prevention device of the toilet

The method according to claim 1,
Further comprising an opening / closing member installed inside the support body to open or close the passage of the support body,
Wherein the pivotal bar is fixed to the rotary shaft of the open / close side and rotates to adjust the open / close side
Backflow prevention device of the toilet

The method of claim 2,
Wherein the guide means comprises:
A closed loop type guide member having the same hole as the cross section of the upper and lower flow bars and
And a bracket for fixing the guide member to the support body.
Backflow prevention device of the toilet

The method of claim 2,
Wherein the length adjusting means comprises:
The connection bar is separated from the one connection bar and the other connection bar,
A hollow portion is provided in the one connection bar and the other connection bar is inserted into the hollow portion,
And an elastic member is provided in the hollow portion.
Backflow prevention device of the toilet

The method of claim 2,
Wherein the limiting means comprises:
A groove that opens toward the downward direction, and
And protrusions formed on both side walls of the inlet portion of the groove.
Backflow prevention device of the toilet

The method of claim 5,
And the groove is located at a position where the other end of the pivot bar can be held when the pivot bar is disposed horizontally
Backflow prevention device of the toilet

The method of claim 6,
Wherein when the pivot bar is horizontally disposed, the upper and lower flow bars press the opening and closing port to maintain the closed state.
Backflow prevention device of the toilet