JP2020172842A - Toilet that stores water in advance - Google Patents

Abstract

PURPOSE: To provide a toilet that pre-stores water for solving the problem of difficulty for a user to drive the drainage valve when negative pressure is present in the jet pipe.SOLUTION: There is provided a toilet with a drain valve between a jet pipe and a toilet tank to store water in advance, further including a floating ball connected to the drain valve in the toilet tank. The floating ball is arranged so as to apply an upward force to the drain valve at least when the water level of the toilet tank reaches the maximum water level. No matter what the water level in the toilet tank is, the buoyancy received by the floating ball cannot overcome the water pressure exerted by the water in the toilet tank on the drain valve to open the drain valve, nor does it overcome the negative pressure formed when the weight of the drain valve and the pre-stored water in the jet pipe reach the maximum water level, under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve.SELECTED DRAWING: Figure 1

Description

The present invention relates to the technical field of sanitary ware, and specifically to a toilet that stores water in advance.

In the prior art, the circle washing water supply of an ordinary siphon type toilet and the jet pipe are connected, and after washing with water, air enters the jet pipe from the overflow pipe, and the water inside the jet pipe is stored by the water level inside the jet pipe. Water traps Flow out of the bottom jet hole until it drops to the height of the water seal. At this time, since the jet pipe part above the water seal is filled with gas, the water flowing from the toilet tank is mixed and agitated with the gas inside the pipe at the next flushing, and air is discharged. Has problems such as large energy loss, large noise, and slow siphon formation.

In order to solve the above problem, a toilet that can store water in advance has appeared in the jet pipe, that is, by changing the structure of the toilet, air is prevented from entering the jet pipe, and thus flushing. The interior of the later jet pipe is still full of water, avoiding the above issues.

However, in the toilet that can store the water of the jet pipe in advance, in addition to the problem of storing the water in advance, the inside of the jet pipe of the toilet that stores water in advance is filled with water and the drain valve is closed. After that, the air cannot enter the jet pipe, the drain valve is attracted to the water supply port of the jet pipe by the negative pressure generated in the jet pipe, and the user must spend a great deal of force to open the drain valve. It cannot be opened, and thus there is another challenge of reducing the user's sensory experience.

Therefore, in view of the technical issues submitted above, the toilet that stores water in advance in the prior art needs to be further improved.

An object of the present invention is to overcome the above-mentioned defects and problems existing in the background technology, to provide a toilet for pre-storing water, and to provide a drain valve when a negative pressure is present in the jet pipe. Solve problems that are difficult to drive.

In order to achieve the above object, the present invention adopts the following technical proposal.

であり、ここで、

は、予め貯蔵した水の最高水位と貯蔵した水のトラップ水シール面にある水位との差であり、Ｓは、排水弁の受圧面積である。 The first technical plan relates to a toilet that stores water in advance, and a drain valve is provided between the jet pipe and the toilet tank, and a floating ball connected to the drain valve is further provided in the toilet tank. Under the condition that at least when the water level of the toilet tank reaches the maximum water level, the drain valve is arranged to apply an upward force, and the floating ball is further arranged to apply an upward force to the drain valve. Regardless of the water level of the water in the toilet tank, the buoyancy received by the floating ball is the maximum water pressure that the water in the toilet tank brings to the drain valve, the weight of the drain valve, and the pre-stored water in the jet pipe. The specific formula of the negative pressure formed when the pre-stored water in the jet pipe reaches the maximum water level, which cannot overcome the negative pressure formed when reaching the water level, cannot open the drain valve.

And here,

Is the difference between the maximum water level of the water stored in advance and the water level on the trap water seal surface of the stored water, and S is the pressure receiving area of the drain valve.

であり、ここで、

は、予め貯蔵した水の最高水位と便器外縁上表面にある位置との差である。 Based on the first technical plan, a second technical plan is further provided, and in the second technical plan, the water in the toilet tank is discharged under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve. At any water level, the buoyancy that the floating ball receives is the maximum water pressure that the water in the toilet tank brings to the drain valve, the weight of the drain valve, the water that fills the toilet bowl, and the water that is stored in advance in the jet pipe. The negative pressure formed when the water reaches the maximum level cannot be overcome and the drain valve cannot be opened, and the water filled in the toilet bowl and the pre-stored water in the jet pipe reaches the maximum water level. The specific formula is

And here,

Is the difference between the maximum water level of pre-stored water and the position on the surface above the outer edge of the toilet bowl.

Based on the first or second technical plan, a third technical plan is further provided, and in the third technical plan, in the toilet tank under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve. There is at least a first water level in the water level, and the buoyancy received by the floating ball under the water level overcomes the water pressure that the water in the toilet tank brings to the drain valve and the weight of the drain valve, and opens the drain valve. The water level is below the maximum water level of the toilet tank.

Based on the first technical plan, a fourth technical plan is further provided. In the fourth technical plan, the floating ball and the drain valve are connected by a pull string, and when the pull string is straight, the floating ball is a drain valve. The pull string is placed so that it is at least straight when the water level in the toilet tank reaches the maximum water level.

Based on the first technical plan, a fifth technical plan is further provided. In the fifth technical plan, the toilet for storing the water in advance is further provided with an intake pipe in the toilet tank, and one end of the intake pipe is a jet. It communicates with the pipe, the other end extends to the highest water level of the toilet tank, and an intake valve used to open and close the intake pipe to communicate with the atmosphere is provided above it.

Based on the fifth technical plan, a sixth technical plan is further provided. In the sixth technical plan, the toilet for pre-storing water is further provided with a housing in the toilet tank, and the housing is hermetically connected to the jet pipe. A water supply port is provided on the cylinder wall, the drain valve is slidably connected to the inner wall of the housing, one end of the intake pipe penetrates the drain valve, and the other end is sealed and fixedly connected to the drain valve. An intake valve that extends to the maximum water level of the toilet tank and is used to open and close the intake pipe to communicate with the atmosphere is provided on the intake valve, and the floating ball is fixed to the intake pipe, and after opening the intake valve, the floating ball is provided. The ball drives the drain valve and moves upwards, and the water supply port and the jet pipe communicate with each other.

Based on the fifth or sixth technical plan, a seventh technical plan is further provided. In the seventh technical plan, the intake valve includes a heavy object or a lift member, and the heavy object and the lift member are connected to each other, and the intake valve is connected. The pipe has an opening at one end that extends to the highest water level of the toilet tank, and when lifting the lift member, heavy objects move away from the opening, the intake pipe communicates with the atmosphere, and when the lift member is released, the heavy object , Down to block the opening, separating the intake pipe from the atmosphere.

Based on the 5th or 6th technical plan, the 8th technical plan is further provided. In the 8th technical plan, the intake valve includes a cylinder, an upper cover, a plug, a lift member and a spring, and the cylinder and the intake air. An opening is provided between the pipe and the lift member and the plug, the upper cover is fixed to the tubular body, and a through hole for the lift member or the plug to penetrate is provided therein. A spring is provided between the plug and the top cover, when lifting the lift member, the plug separates from the opening, the intake pipe communicates with the atmosphere, and when the lift member is released, the spring returns and the plug Blocks the opening and separates the intake pipe from the atmosphere.

A ninth technical plan is further provided based on the fifth or sixth technical plan. In the ninth technical plan, the intake valve includes a push member, a spring, a plug or a cover body, and the push member is a push portion. The cover body is fixed to an intake pipe, the via is provided on the cover body including the connection portion, the connection portion is fixed to a plug located in the intake pipe through the via, and the spring is pushed. Provided between the part and the cover body, when pushing the push member, the plug separates from the via, the intake pipe communicates with the atmosphere, when the lift member is released, the spring returns and the plug blocks the via. Then, the intake pipe and the atmosphere are separated.

As can be seen from the above description of the present invention, the present invention has the following beneficial effects on the prior art.

1. A floating ball connected to the drain valve is provided in the toilet tank, and the floating ball is arranged so as to apply an upward force to the drain valve at least when the water level of the toilet tank reaches the maximum water level. The floating ball can act as a force to open the drain valve. Further, under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve, the buoyancy received by the floating ball is in the toilet tank regardless of the water level in the toilet tank. The water pressure that water brings to the drain valve, the weight of the drain valve and the negative pressure that is formed when the pre-stored water in the jet pipe reaches the maximum water level cannot be overcome, so the floating ball is water in the jet pipe. When the negative pressure in the jet pipe is maximized, the floating ball cannot drive and open the drain valve, thus the floating ball does not need to open the drain valve. At times, it is possible to avoid wasting water by driving and opening the drain valve.

2. Under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve, the buoyancy received by the floating ball is in the toilet tank regardless of the water level in the toilet tank. The water pressure exerted by the water on the drain valve, the weight of the drain valve and the negative pressure formed when the water in the toilet bowl and the pre-stored water in the jet pipe reach the maximum water level, therefore, the floating ball. When the toilet becomes clogged, that is, when the negative pressure in the jet pipe is minimized, the floating ball cannot also drive the drain valve to open, thus the floating ball opens the drain valve. When it is not necessary to open the drain valve, the drain valve is driven to open and drain water to further prevent the toilet water from overflowing into the toilet bowl or the like.

3. Under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve, there is at least a first water level below the maximum water level of the toilet tank in the toilet tank, and below the water level, The buoyancy received by the floating ball can overcome the water pressure that the water in the toilet tank brings to the drain valve 3 and the own weight of the drain valve 3, and the floating ball does not store water in the jet pipe 1, that is, the jet pipe. When there is no internal negative pressure, the drain valve can be driven and opened to refill the jet pipe with water. Therefore, this installation provides great convenience to the user by eliminating the need to manually refill the jet pipe with water when the user uses the toilet for the first time.

4. The floating ball and the drain valve are connected by a pull string, and when the pull string is straightened at least when the toilet tank water level reaches the maximum water level, the floating ball exerts an upward force on the drain valve. This installation can have the effect of reducing the force to open the drain valve. Further, since the floating ball of the embodiment and the drain valve are connected by only one drawstring, the embodiment has features that are easy to operate and easy to realize.

5. For toilets that store water in advance, an intake pipe is further provided in the toilet tank, one end of the intake pipe communicates with the jet pipe, the other end extends to the maximum water level of the toilet tank, and an intake valve is provided above the intake pipe. After the intake valve is opened, air enters the jet pipe from the intake pipe and replenishes the jet pipe with gas until the floating ball can drive the drain valve to open. , Eliminate the negative pressure in the jet pipe, or reduce the negative pressure. Therefore, this installation can solve the problem that it is difficult to open the drain valve.

6. For the toilet that stores water in advance, a housing is further provided in the toilet tank, the housing is hermetically connected to the jet pipe, a water supply port is provided on this cylinder wall, and the drain valve is slidly connected to the inner wall of the housing. , One end of the intake pipe penetrates the drain valve and is sealed and fixedly connected to the drain valve, and the other end extends to the maximum water level of the toilet tank and is used to open and close the intake pipe to communicate with the atmosphere. An intake valve is provided, the floating ball is fixed to the intake pipe, and after opening the intake valve, air enters the jet pipe from the intake pipe, and the floating ball drives the drain valve to move up. Eliminate the negative pressure in the jet pipe or reduce the negative pressure until the drain valve can be opened, and the water in the toilet tank flows into the jet pipe from the water supply port to refill the jet pipe. can do. Therefore, this installation provides another specific implementation that can solve the problem of difficulty in opening the drain valve of a toilet that pre-stores water.

7. The intake valve includes a heavy object and a lift member, and the heavy object and the lift member are connected. The intake pipe has an opening at one end extending to the maximum water level of the toilet tank, and the lift member is a heavy object. When lifting, the heavy object moves away from the opening, the intake pipe communicates with the atmosphere, and when releasing the lift member, the heavy object naturally lowers under its own gravity to block the opening. Therefore, this installation provides a concrete structure of the intake valve and realizes the effect that the intake valve opens and closes the intake pipe to communicate with the atmosphere.

8. The intake valve includes a cylinder, an upper cover, a plug, a lift member and a spring, an opening is provided between the cylinder and the intake pipe, the lift member is connected to the plug, and the upper cover is a cylinder. A through hole is provided above it for the lift member or plug to penetrate, a spring is provided between the plug and the top cover, and when the lift member is lifted, the plug separates from the opening. When the lift member is released, the spring returns and the plug blocks the opening. Therefore, this installation provides a concrete structure of another intake valve to realize the effect that the intake valve opens and closes the intake pipe to communicate with the atmosphere.

9. The intake valve includes a push member, a spring, a plug and a cover body, the cover body is fixed to the intake pipe, a via is provided on the cover body, and the connection portion of the push member penetrates the via to the intake pipe. Fixed to the plug located inside, the spring is provided between the push part and the cover body, when pushing the push member, the plug separates from the via, when releasing the lift, the spring returns and the plug , Block vias. Therefore, this installation provides a concrete structure of another intake valve to realize the effect that the intake valve opens and closes the intake pipe to communicate with the atmosphere.

In order to more clearly explain the technical scheme of the embodiments of the present invention, the drawings that need to be used to describe the embodiments are briefly introduced below. The drawings described below are some embodiments of the present invention, and it is clear that other drawings may be obtained based on these drawings, provided that those skilled in the art do not pay the labor of creativity. ..

FIG. 1 is a schematic view of work when water is not stored in advance in a toilet that stores water in advance according to the embodiment of the present invention. FIG. 2 is a schematic view of work when pre-storing toilet water for pre-storing the water according to the embodiment of the present invention. FIG. 3 is a schematic structure diagram 1 when the lift-type intake valve of the toilet for storing water according to the embodiment of the present invention is opened. FIG. 4 is a schematic structure diagram 2 when the lift-type intake valve of the toilet that stores water according to the embodiment of the present invention is closed. FIG. 5 is a schematic structure diagram 3 when the push-type intake valve of the toilet for storing water according to the embodiment of the present invention is closed. FIG. 6 is a schematic structure diagram 4 when the push-type intake valve of the toilet for storing water according to the embodiment of the present invention is opened. FIG. 7 is a cross-sectional view when the toilet drain valve for storing water according to the second embodiment of the present invention is closed. FIG. 8 is a cross-sectional view when the toilet drain valve for storing the water according to the second embodiment of the present invention is opened.

Hereinafter, the technical plan of the embodiment of the present invention will be clearly and completely described by combining the drawings of the embodiment of the present invention. It is clear that the embodiments described are preferred embodiments of the present invention and should not be considered as excluding other embodiments. Based on the embodiments of the present invention, all those skilled in the art obtained under the premise of not paying the labor of creativity belong to the scope of protection of the present invention.

Unless otherwise explicitly limited in the claims, specification and drawings of the present invention, the use of terms "first", "second" or "third" distinguishes different objects. This is to do, not to describe a particular order.

In the scope, specification and drawings of the present invention, the terms "center", "horizontal", "vertical", "horizontal", "vertical", "top", unless otherwise explicitly defined. Use "bottom", "inside", "outside", "top", "bottom", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. Instructing the orientation or positional relationship is based on the orientation and positional relationship shown in the drawings, for the purpose of describing and simplifying the description of the present invention, and the pointing device or member points to a specific orientation or a specific orientation. It does not mean that the structure and operation of the invention must be provided, and it cannot be understood that it limits the specific scope of protection of the present invention.

Unless otherwise expressly limited in the claims, specification and drawings of the present invention, the use of the terms "fixed" or "fixed connection" must be broadly understood and between the two. There is no connection method of displacement relation and relative rotation relation, including non-removable fixed connection, removable fixed connection, integral connection, fixed connection by other devices or members. ..

In the present invention, the term "the water level of the toilet tank reaches the maximum water level" means that the water in the toilet tank has reached the maximum working water level.

The use of the terms "include", "have" and other variations in the claims, specification and drawings of the present invention is intended to be "included but not limited".

With reference to FIGS. 1 to 6, a toilet for storing water according to the embodiment of the present invention is shown, and a jet pipe 1, a toilet tank 2, a drain valve 3, a floating ball 4, an intake pipe 5, and an intake valve are shown. 6 and a drawstring 7 are provided.

The jet pipe 1 is used for washing the bottom of the toilet with water, and the drain valve 3 is provided between the jet pipe 1 and the toilet tank 2.

The floating ball 4 is provided in the toilet tank 2 and is connected to the drain valve 3. In the present embodiment, the floating ball 4 is a float and is connected to the pull string 7 of the drain valve 3. When the drawstring 7 is straight, the floating ball 4 exerts an upward force on the drain valve 3.

Since the drawstring 7 is arranged so as to be straight at least when the water level of the toilet tank 2 reaches the maximum water level, if the length of the drawstring 7 is arranged too long, the water in the toilet tank 2 will be discharged. The maximum water level is reached, but the drawstring 7 is not yet straight and the float may not be able to apply an upward force to the drain valve. In this way, the float cannot exert the effect of opening the drain valve 3, and conversely, if the length of the drawstring 7 is too short, the water level in the toilet tank 2 reaches a certain height. When not, the drawstring 7 is in a straight state, and the drain valve 3 is driven to open, and there is a possibility that water and air will enter the jet pipe 1 at the same time. The floating balls 4 need to be arranged respectively.

であり、ここで、

は、予め貯蔵した水の最高水位と貯蔵した水のトラップ水シール面にある水位との差であり、Ｓは、排水弁３の受圧面積である、即ち、浮球のジェットパイプ内の負圧が最大になる時、排水弁を駆動して開けることができない。 The floating ball 4 is arranged so as to apply an upward force to the drain valve 3 when at least the water level of the toilet tank 2 reaches the maximum water level, and the toilet tank 2 is provided under the condition that an upward force is applied to the drain valve 3. Regardless of the water level inside, the buoyancy received by the floating ball 4 is the water pressure that the water in the toilet tank 2 brings to the drain valve 3, the weight of the drain valve 3, and the water stored in advance in the jet pipe 1. The drain valve 3 cannot be opened by overcoming the negative pressure formed when the water reaches the maximum water level, and the specific negative pressure formed when the pre-stored water in the jet pipe 1 reaches the maximum water level. The formula is

And here,

Is the difference between the maximum water level of the pre-stored water and the water level on the trap water seal surface of the stored water, and S is the pressure receiving area of the drain valve 3, that is, the negative pressure in the jet pipe of the floating ball. When is maximized, the drain valve cannot be driven to open.

であり、ここで、

は、予め貯蔵した水の最高水位と便器外縁上表面にある位置との差であり、即ち、ジェットパイプ内の負圧が最小まで下がる時、浮球も排水弁を駆動して開けることができない。 Under the condition that the floating ball 4 is further arranged so as to apply an upward force to the drain valve 3, the buoyancy received by the floating ball 4 is the toilet tank regardless of the water level of the water in the toilet tank 2. Drainage by overcoming the water pressure that the water in 2 brings to the drain valve 3, the own weight of the drain valve 3, the water that fills the toilet bowl, and the negative pressure that is formed when the water stored in advance in the jet pipe 1 reaches the maximum water level. The negative pressure formed when the valve 3 cannot be opened and the water in the toilet bowl and the pre-stored water in the jet pipe 1 reach the maximum water level is

And here,

Is the difference between the maximum water level of the pre-stored water and the position on the surface above the outer edge of the toilet bowl, that is, when the negative pressure in the jet pipe drops to the minimum, the floating ball cannot also drive the drain valve to open. ..

Under the condition that the floating ball 4 is further arranged so as to apply an upward force to the drain valve 3, at least the first water level exists in the toilet tank 2, and the buoyancy received by the floating ball 4 under the water level is , The water pressure brought to the drain valve 3 by the water in the toilet tank and the own weight of the drain valve 3 cannot be overcome to open the drain valve 3, and the first water level is equal to or lower than the maximum water level of the toilet tank 2. When there is no negative pressure in the jet pipe 1 or the negative pressure disappears, the floating ball 4 cannot drive and open the drain valve 3 to replenish the jet pipe 1 with water.

It should be noted that when the volume of the floating ball 4 is arranged, if the volume arrangement of the floating ball 4 is made too large, the negative pressure in the jet pipe 1 becomes maximum, and the floating ball 4 drains water. In some cases, the valve 3 can be driven and opened, thus wasting water resources. On the contrary, if the volume arrangement of the floating ball 4 is made too small, the floating ball may not be able to drive and open the drain valve 3 when there is no negative pressure in the jet pipe 1.

The intake pipe 5 is provided in the toilet tank 2, one end of which communicates with the jet pipe 1 and the other end of which extends to the maximum water level of the toilet tank 2.

The intake valve 6 is provided at one end of the intake pipe 5 extending to the maximum water level of the toilet tank 2, and is used to open and close the intake pipe 5 to communicate with the atmosphere. In the present embodiment, the intake valve 6 may have a lift type or a push type structure.

As shown in FIGS. 2 to 4, when the intake valve 6 is a lift type intake valve, it may be composed of a heavy object 61 and a lift member 62, and the heavy object 61 and the lift member 62 are connected to each other. When lifting the lift member 62, the heavy object 61 separates from the opening 51 of the intake pipe 5 provided at one end extending to the highest water level of the toilet tank 2, and the intake pipe 5 communicates with the atmosphere and releases the lift member 62. At that time, the heavy object 61 falls and blocks the opening 51.

Even when the intake valve 6 has a lift type structure, it may be composed of a cylinder 63, an upper cover 64, a plug 61, a lift member 62, a spring 65 and a sealing gasket 68, and is between the cylinder 63 and the intake pipe 5. The lift member 62 and the plug 61 are connected to each other by a connection hole 611 provided at the top of the plug 61, and the upper cover 64 is fixed to the tubular body 63 and the lift member 62 or the plug 61 is provided therein. A through hole 641 for the 61 to penetrate is provided, a spring 65 is provided between the boss 612 formed at the bottom of the plug 61 and the upper cover 64, and the sealing gasket 68 is fixed to the bottom of the plug 61 to form a cylinder. The body 63 is provided with a ring-shaped protrusion corresponding to the sealing gasket 68, and the opening 51 is blocked when the sealing gasket 68 and the ring-shaped protrusion are sealed and engaged. When lifting the lift member 62, the spring 65 is pushed in, the plug 61 and the sealing gasket 68 move up and away from the ring-shaped projections, and the intake port 631 provided on the side of the tubular body 63 is at air. When the lift member 62 is released, the spring 65 returns to contact the sealing gasket 68 with the ring-shaped protrusion, block the opening 51, and separate the intake pipe 5 from the atmosphere.

As shown in FIGS. 5 and 6, when the intake valve 6 has a push type structure, it may be composed of a push member 66, a spring 65, a plug 61 and a cover body 67, and the push member 66 is a push portion 661. The cover body 67 is fixed to the intake pipe 5 and a via 671 is provided on the cover body 67, and the connection portion 662 has a plug 61 that penetrates the via 671 and is located in the intake pipe 5. The spring 65 is fixed and is connected between the convex ring 6620 formed on the outer periphery of the connecting portion 662 and the cover body 67, and when the push member 66 is pushed, the plug 61 is separated from the via 671 and the intake pipe 5 Communicates with the atmosphere, and when the lift member 62 is released, the spring 65 returns and the plug 61 blocks the via 671 to isolate the intake pipe 5 from the atmosphere.

When the user uses the toilet for the first time, no water is stored in the jet pipe 1, and when the water level in the toilet tank 2 rises to a certain height, the floating ball 4 drives the drain valve 3 to open. When the water in the toilet tank 2 flows into the jet pipe 1 and the water level in the toilet tank 2 drops to a certain height, the drain valve 3 lowers and closes.

When the water in the jet pipe 1 is full, the intake valve 6 is opened, the intake pipe 5 communicates with the atmosphere, the air quickly enters the jet pipe 1, and the negative pressure in the jet pipe 1 disappears. Or, when the negative pressure drops, the floating ball 4 drives the drain valve 3 to open.

Referring to FIGS. 7 and 8, the difference between the toilet that stores the water of the second embodiment in advance and the first embodiment is that the housing 8 is further provided in the toilet tank 2, and the housing 8 is hermetically connected to the jet pipe 1. A water supply port 81 is provided on the cylinder wall, the drain valve 3 is slidably connected to the inner wall of the housing 8, one end of the intake pipe 5 penetrates the drain valve 3, and is sealed and fixedly connected to the drain valve 3. The other end extends to the maximum water level of the toilet tank 2, above which an intake valve 6 used to open and close the intake pipe 5 to communicate with the atmosphere is provided, and the floating ball 4 is fixed to the intake pipe 5. Is. In this embodiment, the floating ball 4 is a float.

After the user opens the intake valve 6, the floating ball 4 drives the drain valve 3 to move upward, and the water supply port 81 and the jet pipe 1 communicate with each other.

The description of the specification and the embodiments is for the purpose of explaining the protection scope of the present invention and does not constitute a limitation of the protection scope of the present invention. By teaching the present invention or the above embodiments, those skilled in the art will combine known common knowledge, common technical knowledge in the art and / or prior art, and by appropriate logical analysis, inference or limited experimentation, the present invention. Obtaining amendments, equivalent substitutions or other modifications of the technical features of the embodiment or a portion thereof are all within the scope of protection of the present invention.

Provide a toilet that pre-stores water to solve the problem that it is difficult for the user to drive the drain valve when there is negative pressure in the jet pipe.

1: Jet pipe 2: Toilet tank 3: Drain valve 4: Floating ball 5: Intake pipe 51: Opening / opening hole 6: Intake valve 61: Heavy object / plug 611: Connection hole 612: Boss 62: Lift member 63: Cylinder Body 631: Intake port 64: Top cover 641: Through hole 65: Spring 66: Push member 661: Push part 662: Connection part 6620: Convex ring 67: Cover body 671: Via 68: Sealing gasket 7: Pull string 8: Housing 81: Water supply port

Claims (9)

A toilet with a drain valve between the jet pipe and the toilet tank that stores water in advance.
The toilet that stores the water in advance is further provided with a floating ball connected to the drain valve in the toilet tank, and the floating ball exerts an upward force on the drain valve at least when the water level of the toilet tank reaches the maximum water level. Under the condition that the floating ball is arranged to apply and the floating ball is further arranged to apply an upward force to the drain valve, the buoyancy received by the floating ball, regardless of the water level in the toilet tank, is In both cases, the drain valve can be opened by overcoming the water pressure that the water in the toilet tank brings to the drain valve, the weight of the drain valve, and the negative pressure that is formed when the pre-stored water in the jet pipe reaches the maximum water level. Zu,
The specific formula for the negative pressure formed when the pre-stored water in the jet pipe reaches the maximum water level is:

And
here,

Is the difference between the maximum water level of the water stored in advance and the water level on the trap water seal surface of the stored water, and S is a toilet for storing water in advance, which is the pressure receiving area of the drain valve. Under the condition that the floating ball is further arranged so as to apply an upward force to the drain valve, regardless of the water level of the water in the toilet tank, the floating force received by the floating ball is the water in the toilet tank. It is not possible to open the drain valve by overcoming the water pressure brought to the drain valve, the weight of the drain valve, the water filling the toilet bowl and the negative pressure formed when the pre-stored water in the jet pipe reaches the maximum water level. The specific formula of the negative pressure formed when the water in the toilet bowl and the pre-stored water in the jet pipe reaches the maximum water level is

And
here,

The toilet for pre-storing water according to claim 1, wherein is the difference between the maximum water level of pre-stored water and the position on the outer edge of the toilet bowl. Under the condition that the floating ball is further arranged to apply an upward force to the drain valve, there is at least a first water level in the toilet tank, and the buoyancy received by the floating ball under the water level is in the toilet tank. The water according to claim 1 or 2, wherein the drain valve is opened by overcoming the water pressure caused by the water to the drain valve and the own weight of the drain valve, and the first water level is equal to or lower than the maximum water level of the toilet tank. Pre-stored toilet. The floating ball and the drain valve are connected by a drawstring, and when the drawstring is straight, the floating ball exerts an upward force on the drain valve, and the drawstring reaches at least the water level of the toilet tank at the maximum water level. The toilet for pre-storing water according to claim 1, wherein the toilet is arranged so as to be straight when the water is used. In the toilet that stores the water in advance, an intake pipe is further provided in the toilet tank, one end of the intake pipe communicates with the jet pipe, and the other end extends to the maximum water level of the toilet tank, and the intake pipe is above the intake pipe. The toilet for preliminarily storing water according to claim 1, wherein an intake valve used for opening and closing the toilet to communicate with the atmosphere is provided. The toilet for pre-storing water has a housing further provided in the toilet tank, the housing is hermetically connected to a jet pipe, a water supply port is provided on the cylinder wall, and the drain valve is slidably connected to the inner wall of the housing. Then, one end of the intake pipe penetrates the drain valve and is sealed and fixedly connected to the drain valve, and the other end extends to the maximum water level of the toilet tank, and the intake pipe is opened and closed on it to communicate with the atmosphere. The floating ball is fixed to the intake pipe, and after opening the intake valve, the floating ball drives the drain valve to move upward, and the water supply port and the jet pipe communicate with each other. The toilet for preliminarily storing the water according to claim 5, wherein the water is stored in advance. The intake valve includes a heavy object and a lift member, the heavy object and the lift member are connected, and the intake pipe is provided with an opening at one end extending to the maximum water level of the toilet tank, and when the lift member is lifted, the heavy object is provided. 5 or, characterized in that, apart from the opening, the intake pipe communicates with the atmosphere and when the lift member is released, a heavy object lowers to block the opening and separates the intake pipe from the atmosphere. A toilet that stores the water according to 6 in advance. The intake valve includes a cylinder, an upper cover, a plug, a lift member and a spring, an opening is provided between the cylinder and the intake pipe, the lift member and the plug are connected, and the upper cover is formed. It is fixed to the cylinder, and a through hole for the lift member or the plug to penetrate is provided therein, and the spring is provided between the plug and the upper cover, and when the lift member is lifted, the plug is opened. 5 or, characterized in that, apart from, the intake pipe communicates with the air and when the lift member is released, the spring returns and the plug blocks the opening to separate the intake pipe from the atmosphere. A toilet that stores the water according to 6 in advance. The intake valve includes a push member, a spring, a plug and a cover body, the push member includes a push portion and a connection portion, the cover body is fixed to an intake pipe, and a via is provided on the push member. The connection is fixed to the plug located in the intake pipe through the via, the spring is provided between the push and the cover, and when pushing the push member, the plug separates from the via. The water according to claim 5 or 6, characterized in that the intake pipe communicates with the atmosphere, the spring returns when the lift member is released, and the plug blocks the vias to separate the intake pipe from the atmosphere. A toilet that is stored in advance.

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