WATER PRE-STORABLE TOILET

Abstract

A water pre-storable toilet includes a drain valve located between an injection duct and a water tank, and a float connected to the drain valve is further provided in the water tank. The float is configured to apply an upward pulling force to the drain valve at least when a water level of the water tank reaches a maximum. The float is also configured in such a way that when the float applies the upward pulling force to the drain valve, a buoyancy of the float may not overcome a water pressure caused by the water in the water tank to the drain valve, a weight of the drain valve itself, and a negative pressure formed when the pre-stored water in the injection duct reaches the highest water level regardless of water level of a water in the water tank and thus can't open the drain valve.

Claims

1. A water pre-storable toilet with a drain valve between an injection duct and a water tank, wherein a float connected to the drain valve is further provided in the water tank of the water pre-storable toilet, the float is configured to apply an upward pulling force to the drain valve at least when a water level of the water tank reaches a highest water level, the float is also configured in such a way that when the float applies the upward pulling force to the drain valve, a buoyancy of the float may not overcome a water pressure caused by the water in the water tank to the drain valve, a weight of the drain valve itself, and a negative pressure formed when a pre-stored water in the injection duct reaches the highest water level regardless of a water level of the water in the water tank, thus can't open the drain valve; a specific formula of the negative pressure formed when the pre-stored water in the injection duct reaches the highest water level is as follows:
P.sub.max=.sub.watergh.sub.maxS wherein h.sub.max is a difference between the highest water level of the pre-storage water and a water level of a trap water seal, and S is a pressure bearing area of the drain valve.

2. The water pre-storable toilet as claimed in claim 1, wherein the float is further configured in such a way that when the float applies the upward pulling force to the drain valve, the buoyancy of the float may not overcome the water pressure caused by the water in the water tank to the drain valve, the weight of the drain valve itself, and the negative pressure formed when a toilet bowl is filled with water and the pre-stored water in the injection duct reaches the highest water level regardless of a water level of the water in the water tank, thus can't open the drain valve; and a specific formula of the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct reaches the highest water level is as follows:
P.sub.min=.sub.watergh.sub.minS(h.sub.min>0) wherein h.sub.min is a difference between the highest water level of the pre-stored water and a position of an upper surface of an outer edge of the toilet bowl.

3. The water pre-storable toilet as claimed in claim 1 wherein the float is further configured in such a way that when the float applies the upward pulling force on the drain valve, there is at least a first water level in the water tank and under the first water level, the buoyancy of the float overcomes the water pressure caused by the water in the water tank to the drain valve and the weight of the drain valve itself and thus opens the drain valve, and the first water level is lower than or equal to the highest water level of the water tank.

4. The water pre-storable toilet as claimed in claim 2, wherein the float is further configured in such a way that when the float applies the upward pulling force on the drain valve, there is at least a first water level in the water tank and under the first water level, the buoyancy of the float overcomes the water pressure caused by the water in the water tank to the drain valve and the weight of the drain valve itself and thus opens the drain valve, and the first water level is lower than or equal to the highest water level of the water tank.

5. The water pre-storable toilet as claimed in claim 1, wherein the float is connected to the drain valve through a drawstring, and when the drawstring is straightened, the float applies the upward pulling force to the drain valve, and the drawstring is also configured to be straightened at least when the water level of the water tank reaches the highest water level.

6. The water pre-storable toilet as claimed in claim 1, wherein the water pre-storable toilet is further provided with an intake pipe in the water tank, one end of the intake pipe is connected to the injection duct, the other end is extending out of the highest water level of the water tank, and an intake valve is provided on the intake pipe for realizing or cutting off the connection between the intake pipe and atmosphere.

7. The water pre-storable toilet as claimed in claim 6, wherein the water pre-storable toilet is further provided with a housing in the water tank; the housing is sealingly connected to the injection duct, and a water inlet is provided on a wall of the housing; the drain valve is slidably connected to an inner wall of the housing, one end of the inlet pipe passes through the drain valve and is sealedly and fixedly connected to the drain valve, and the other end is extending out of the highest water level of the water tank and is provided with the intake valve for realizing or cutting off the connection between the intake pipe and atmosphere; the float is fixed on the intake pipe; wherein when the intake valve is opened, the float drives the drain valve to move upwards, and the water inlet is connected to the injection duct.

8. The water pre-storable toilet as claimed in claim 6, wherein the intake valve comprises a weight and a pulling member; the weight and the pulling member are connected; one end of the intake pipe extending out of the highest water level of the water tank is provided with an opening; wherein when the pulling member is pulled, the weight leaves the opening, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the weight falls to block the opening, and the connection between the intake pipe and the atmosphere is cut off.

9. The water pre-storable toilet as claimed in claim 7, wherein the intake valve comprises a weight and a pulling member; the weight and the pulling member are connected; one end of the intake pipe extending out of the highest water level of the water tank is provided with an opening; wherein when the pulling member is pulled, the weight leaves the opening, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the weight falls to block the opening, and the connection between the intake pipe and the atmosphere is cut off.

10. The water pre-storable toilet as claimed in claim 6, wherein the intake valve comprises a cylinder, an upper cover, a plug, a pulling member, and a spring; an opening is provided between the cylinder and the intake pipe; the pulling member is connected to the plug, the upper cover is fixed to the cylinder and a through-hole is provided thereon for the pulling member or the plug to pass through; the spring is provided between the plug and the upper cover; wherein when the pulling member is pulled, the plug leaves the opening, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the spring is reset and drives the plug to block the opening, and the connection between the intake pipe and the atmosphere is cut off.

11. The water pre-storable toilet as claimed in claim 7, wherein the intake valve comprises a cylinder, an upper cover, a plug, a pulling member, and a spring; an opening is provided between the cylinder and the intake pipe; the pulling member is connected to the plug, the upper cover is fixed to the cylinder and a through-hole is provided thereon for the pulling member or the plug to pass through; the spring is provided between the plug and the upper cover; wherein when the pulling member is pulled, the plug leaves the opening, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the spring is reset and drives the plug to block the opening, and the connection between the intake pipe and the atmosphere is cut off.

12. The water pre-storable toilet as claimed in claim 6, wherein the intake valve comprises a pressing member, a spring, a plug, and a cover; the pressing member comprises a pressing portion and a connecting portion, the cover is fixed to the intake pipe and a via is provided thereon, and the connecting portion passes through the via and is fixedly connected to the plug located in the intake pipe; the spring is provided between the pressing portion and the cover; wherein when the pressing member is pressed, the plug leaves the via, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the spring is reset and drives the plug to block the via, and the connection between the intake pipe and the atmosphere is cut off.

13. The water pre-storable toilet as claimed in claim 7, wherein the intake valve comprises a pressing member, a spring, a plug, and a cover; the pressing member comprises a pressing portion and a connecting portion, the cover is fixed to the intake pipe and a via is provided thereon, and the connecting portion passes through the via and is fixedly connected to the plug located in the intake pipe; the spring is provided between the pressing portion and the cover; wherein when the pressing member is pressed, the plug leaves the via, and the intake pipe is connected to the atmosphere, and when the pulling member is released, the spring is reset and drives the plug to block the via, and the connection between the intake pipe and the atmosphere is cut off.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings used in the description of the embodiments are briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention. Those of ordinary skill in the art are able to obtain other figures from these drawings without creative effort.

[0020] FIG. 1 is a schematic diagram of a water pre-storable toilet without pre-stored water of embodiment 1 of the invention.

[0021] FIG. 2 is a schematic diagram of a water pre-storable toilet with pre-stored water of embodiment 1 of the invention.

[0022] FIG. 3 is a first structural schematic diagram of a pull-type intake valve of the water pre-storable toilet of embodiment 1 when the pull-type intake valve is opened.

[0023] FIG. 4 is a second structural schematic diagram of a pull-type intake valve of the water pre-storable toilet of embodiment 1 when the pull-type intake valve is closed.

[0024] FIG. 5 is a third structural schematic diagram of a push-type intake valve of the water pre-storable toilet of embodiment 1 when the push-type intake valve is closed.

[0025] FIG. 6 is a fourth structural schematic diagram of a push-type intake valve of the water pre-storable toilet of embodiment 1 when the push-type intake valve is opened.

[0026] FIG. 7 is a cross-sectional view of a drain valve of the water pre-storable toilet of embodiment 2 when the drain valve of is closed.

[0027] FIG. 8 is a cross-sectional view of a drain valve of the water pre-storable toilet of embodiment 2 when the drain valve of is opened.

DESCRIPTION OF THE EMBODIMENTS

[0028] In the present application, the term water level of the water tank reaches the highest water level means that the water in the water tank reaches the maximum value of the working water level.

Embodiment 1

[0029] Referring to FIG. 1 to FIG. 6, a water pre-storable toilet of embodiment 1 of the invention is provided, which is provided with an injection duct 1, a water tank 2, a drain valve 3, a float 4, an intake pipe 5, an intake valve 6, and a drawstring 7;

[0030] The injection duct 1 is for flushing the bottom of the toilet, and the drain valve 3 is provided between the injection duct 1 and the water tank 2;

[0031] The float 4 is provided in the water tank 2 and connected to the drain valve 3. In the present embodiment, the float 4 is a buoy, which is connected to the drawstring 7 of the drain valve 3, and when the drawstring 7 is straightened, the float 4 applies an upward pulling force to the drain valve 3; since the float 4 and the drain valve 3 are connected only by one drawstring 7, the present embodiment has the characteristics of simple operation and easy implementation.

[0032] The drawstring 7 is configured to be straightened at least when the water level of the water tank 2 reaches the highest water level, because if the length of the drawstring 7 is configured too long, then the situation in which the water in the water tank 2 reaches the highest water level but the drawstring 7 is not yet straightened and the buoy may not apply an upward pulling force to the drain valve occurs. Therefore, the buoy may not achieve the effect of driving the drain valve 3 to open. Conversely, if the length of the drawstring 7 is configured too short, the drawstring 7 may already be in a straightened state and drive the drain valve 3 to open when the water level in the water tank 2 does not reach a certain height, so that air also enters the injection duct 1 when water enters the injection duct 1. Therefore, in the embodiment, the drawstring 7 and the float 4 need to be configured separately;

[0033] The float 4 is configured to apply an upward pulling force to the drain valve 3 at least when the water level of the water tank 2 reaches the highest water level, and when the float 4 applies an upward pulling force to the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2, thus can't open the drain valve 3, and the specific formula of the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level is P.sub.max=.sub.watergh.sub.maxS, wherein h.sub.max is the difference between the highest water level of the pre-stored water and the water level of the trap water seal, S is the pressure bearing area of the drain valve 3, that is, when the negative pressure in the injection duct reaches a maximum, the drain valve 3 may not be driven to open by the float 4. Since the water tank 2 is provided therein with the float 4 connected to the drain valve 3, and the float 4 is configured to apply an upward pulling force to the drain valve 3 at least when the water level of the water tank reaches the highest water level, the float 4 may achieve the effect of reducing the pulling force for opening the drain valve 3; further, since the float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2, and when the injection duct 1 is filled with water, that is, when the negative pressure in the injection duct 1 reaches a maximum, the float 4 cannot drive the drain valve 3 to open, thereby the problem of wasting water caused by undesired opening of the drain valve 3 by the float 4 can be avoided.

[0034] The float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level to open the drain valve 3 regardless of the water level of the water in the water tank 2, and when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level, the negative pressure formed is P.sub.min=.sub.watergh.sub.minS(h.sub.min>0), wherein h.sub.min is the difference between the highest water level of the pre-stored water and the position of the upper surface of the outer edge of the toilet bowl, that is, even when the negative pressure in the injection duct 1 is minimized, the float still may not drive the drain valve 3 to open. Since the float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2. Therefore, when the toilet is clogged, that is, when the negative pressure in the injection duct 1 is minimized, the float 4 also cannot drive the drain valve 3 to open. In this way, the float 4 is further prevented from driving the drain valve 3 to open when the drain valve 3 does not need to be opened, thereby the situations in which the toilet water overflows the toilet bowl and the like can be prevented.

[0035] The float 4 is further configured such that when the float 4 exerts an upward pulling force on the drain valve 3, at least a first water level exists in the water tank 2, and under the first water level, the buoyancy of the float 4 overcomes the water pressure of the water in the water tank to the drain valve 3 and the weight of the drain valve 3 itself to open the drain valve 3, and the first water level is lower than or equal to the highest water level of the water tank 2, that is, when there is no negative pressure or negative pressure disappears in the injection duct 1, the float 4 may drive the drain valve 3 to open, so as to replenish the injection duct 1; this configuration eliminates the user's trouble of manually replenishing the injection duct 1 when using the toilet for the first time, and provides the user with greater convenience.

[0036] It should be noted that, when the volume of the float 4 is configured, if the volume of the float 4 is configured too large, the float 4 may still drive the drain valve 3 to open when the negative pressure in the injection duct 1 is maximized, which will cause the waste of water resource; on the other hand, if the volume of the float 4 is configured too small, the float 4 cannot drive the drain valve 3 to open even when there is no negative pressure in the injection duct 1;

[0037] The intake pipe 5 is provided in the water tank 2, one end thereof is connected to the injection duct 1, and the other end thereof is extending out of the highest water level of the water tank 2.

[0038] The intake valve 6 is provided at one end of the intake pipe 5 extending out of the highest water level of the water tank 2, and is used for realizing or cutting off the connection between the intake pipe 5 and the atmosphere; in the present embodiment, the intake valve 6 may be a pull-type or push-type structure; via the above design, when the intake valve 3 is opened, air may enter the injection duct 1 from the intake pipe 5 to eliminate or reduce the negative pressure in the injection duct 1 by means of inflating the injection duct 1 until the float 4 may drive the drain valve 3 to automatically open; therefore, this configuration may solve the problem that the drain valve is difficult to be opened.

[0039] As shown in FIG. 2 to FIG. 4, when the intake valve 6 is a pull-type structure, the intake valve 6 may be composed of a weight 61 and a pulling member 62, and the weight 61 and the pulling member 62 are connected; wherein when the pulling member 62 is pulled, the weight 61 leaves an opening 51 provided at one end of the intake pipe 5 extending out of the highest water level of the water tank 2, and the intake pipe 5 is connected to the atmosphere, and when the pulling member 62 is released, the weight 61 drops and the opening 51 is blocked;

[0040] When the intake valve 6 is a pull-type structure, the intake valve 6 may also be composed of a cylinder 63, an upper cover 64, a plug 61, a pulling member 62, a spring 65, and a sealing gasket 68, an opening 51 provided between the cylinder 63 and the intake pipe 5, the lifting member 62 and the plug 61 are connected by a connecting hole 611 provided at the top of the plug 61, the upper cover 64 is fixed on the cylinder 63, and a through-hole 641 is provided thereon to allow the pulling member 62 or the plug 61 to pass through, the spring 65 is provided between a protruding platform 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, an annular protuberance corresponding to the sealing gasket 68 is provided on the cylinder 63 and when the sealing gasket 68 is urging against the annular protuberance, the opening 51 is blocked; wherein when the pulling member 62 is pulled, the spring 65 is pressed, the plug 61 and the sealing gasket 68 are moved upwards and away from the annular protuberance, and the air inlet 631 provided at a side of the cylinder 63 is connected to the atmosphere. When the pulling member 62 is released, the spring 65 is reset, which drives the sealing gasket 68 to urge against the annular protuberance, and the opening 51 is blocked and the connection between the intake pipe 5 and the atmosphere is cut off.

[0041] As shown in FIG. 5 and FIG. 6, when the intake valve 6 is a push-type structure, the intake valve 6 may be composed of a pressing member 66, a spring 65, a plug 61, and a cover 67, the pressing member 66 includes a pressing portion 661 and a connecting portion 662, and the cover 67 is fixed to the intake pipe 5 and provided with a via 671 thereon. The connecting portion 662 passes through the via 671 and is fixedly connected to the plug 61 located in the intake pipe 5. The spring 65 is provided between a convex ring 6620 formed on an outer periphery of the connecting portion 662 and the cover 67, and when the pressing member 66 is pressed, the plug 61 is departed from the via 671, and the intake pipe 5 is connected to the atmosphere. When the pulling member 62 is released, the spring 65 is reset and drives the plug 61 to block the via 671, and the connection between the intake pipe 5 and the atmosphere is cut off.

[0042] When the user uses the toilet for the first time, there is no pre-stored water in the injection duct 1, and when the water level in the water tank 2 rises to a certain height, the float 4 drives the drain valve 3 to open, and the water in the water tank 2 flows into the injection duct 1, and when the water level in the water tank 2 drops to a certain height, the drain valve 3 falls and is closed.

[0043] When the injection duct 1 is filled with water, the intake valve 6 is opened, the intake pipe 5 is connected to the atmosphere, air rapidly enters the injection duct 1 and the negative pressure of the injection duct 1 disappears or is reduced, and the float 4 drives the drain valve 3 to open.

Embodiment 2

[0044] Referring to FIG. 7 and FIG. 8, the water pre-storable toilet in embodiment 2 is different from embodiment 1 in that the water tank 2 is further provided with a housing 8, the housing 8 is sealingly connected to the injection duct 1, and the wall thereof is provided with a water inlet 81. The drain valve 3 is slidably connected to the inner wall of the housing 8. One end of the intake pipe 5 passes through the drain valve 3 and is sealingly and fixedly connected to the drain valve 3, and the other end is extending out of the highest water level of the water tank 2 and is provided with the intake valve 6 for realizing or cutting off the connection between the intake pipe 5 and the atmosphere, and the float 4 is fixed on the intake pipe 5. In the present embodiment, the float 4 is a buoy. When the user opens the intake valve 6, the float 4 drives the drain valve 3 to move upwards, and the water inlet 81 is connected to the injection duct 1.

[0045] This configuration provides another specific embodiment that may be used to address the difficulty of opening the drain valve of a water pre-storable toilet.