CN212715211U - Toilet seat - Google Patents

Abstract

The utility model relates to a sanitary wares makes the field, provides a toilet bowl, include: a seat body with a dirt containing groove; a first water tank; a water inlet valve; a second water tank; a first flushing circuit having a first water inlet end in selective fluid communication with the water inlet valve and a first water outlet end in fluid communication with the annular punching opening, the first flushing circuit including a first jet flow increasing structure disposed within the second tank and configured to generate a negative pressure when water from the water inlet valve passes through the first jet flow increasing structure, thereby drawing water within the second tank into the first flushing circuit; and the pipeline switching mechanism is arranged in the second water tank and is configured to automatically switch the fluid communication or non-fluid communication between the first flushing pipeline and the water inlet valve in response to the water level in the second water tank. Through additionally arranging the second water tank and arranging the first jet flow-increasing structure of the first circle flushing pipeline and the pipeline switching mechanism in the small water tank, the whole flushing process can be more water-saving, and the circle flushing effect is better.

Description

Toilet seat

Technical Field

The utility model relates to a sanitary wares field of making mainly relates to a toilet bowl, and this toilet bowl can realize washing (promptly, can carry out the circle towards and end towards) the independent two tunnel of receiving dirty groove.

Background

For a long time, more and more multi-user adopts siphonic type toilet bowl to replace traditional direct-flushing type toilet bowl. The siphon toilet bowl has the advantages of stronger flushing force, quieter effect and better odor isolation effect. The siphon type toilet bowl may be classified into a vortex type siphon toilet bowl and a jet type siphon toilet bowl. For example, the jet siphon toilet adopts the siphon principle in hydrodynamics, and after the flushing device is started, the toilet pipe instantly generates strong negative pressure in the vacuum state, and a liquid column height difference (i.e. pressure difference) is formed due to the action of atmospheric pressure, so that water flows from a high water level with large pressure to a low water level with small pressure, and fills the sewage pipe, so-called siphon phenomenon is generated, and then the sewage is pumped away.

The present siphon toilet bowl mostly includes the washing circle that is located the dirty pond top of receiving of toilet bowl and the jet orifice that is located the dirty pond bottom of receiving of toilet bowl, and the water that flows from the washing circle at top is used for washing the dirty face of receiving of toilet bowl, and the water that flows from the jet orifice then is used for spraying the dirty sewage that receives the dirty pond bottom of toilet bowl to produce the siphon and wash the filth in the toilet bowl in the blowdown bend.

For this reason, the drainage component discharged water of following toilet bowl water tank shunts all the way to receiving the last along many places of dirty pond inner wall to carry out from the top down to receiving dirty face and wash, another way then shunts the filth of receiving dirty bottom of the pool portion to the bottom of toilet bowl and carries out the hydrocone type and wash.

However, the existing design is not enough, on the one hand, the water level in the water tank of the toilet bowl may be lower or the water volume for flushing is less because of the small volume of the water tank, and the water pressure in the water tank is lower, so that the water pressure for flushing (namely, flushing) the sewage surface is small along the upper edge of the inner wall of the sewage receiving pool for shunting to the toilet bowl, and finally the flushing of the toilet bowl is incomplete and unclean, and inconvenience is brought to the life of a user. On the other hand, if a thorough and clean flush is desired, a relatively large volume of water may be required, and the toilet tank is designed to be of a relatively large volume, which is unacceptable to users who require a low tank.

Therefore, there is a constant need in the art of toilets to save water or provide a compact tank while ensuring that the toilet is flushed clean and thoroughly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above technical problem, provide a modified toilet bowl, its pressure boost effect is showing, realizes the more clean, thorough washing in dirty pond of receiving of toilet bowl, can save the water to a certain extent again simultaneously to make miniaturized water tank possible.

The utility model provides a toilet bowl, this toilet bowl includes: the base body is provided with a dirt containing groove, the dirt containing groove comprises a dirt containing surface and a dirt discharge outlet positioned at the bottom of the groove, and a ring flushing hole is formed in the dirt containing groove; a first tank containing water for flushing the dirt receiving tank; a water inlet valve disposed within the first tank; a second tank which also contains water for flushing the dirt receiving tank and is arranged in the first tank such that a water level line in the first tank is lower than the second tank; the first flushing pipeline is in selective fluid communication with the water inlet valve, and a first water outlet end of the first flushing pipeline is in fluid communication with the ring punching port so as to perform ring punching on the sewage receiving tank, wherein the first flushing pipeline comprises a first jet flow increasing structure which is arranged in the second water tank and is configured to generate negative pressure when water from the water inlet valve flows through the first jet flow increasing structure so as to suck the water in the second water tank into the first flushing pipeline; and the pipeline switching mechanism is arranged in the second water tank and is configured to automatically switch the fluid communication or non-fluid communication between the first flushing pipeline and the water inlet valve in response to the water level in the second water tank.

Through addding the second water tank and arranging first injection flow-increasing structure and pipeline switching mechanism that first circle washed the pipeline in this little water tank, when carrying out the circle and dashing, can use earlier the water in the second water tank can lead to the decline rapidly of water level to make pipeline switching mechanism's response action also more rapid, and then whole washing process is more water-conservation, the circle dashes the effect also better.

Preferably, the toilet bowl also comprises a second bottom flushing pipeline, wherein a second water inlet end of the second bottom flushing pipeline is selectively communicated with the water inlet valve in a fluid mode, and a second water outlet end of the second bottom flushing pipeline is communicated with a sewage outlet at the bottom of the tank in a fluid mode, so that bottom flushing is carried out on the sewage containing tank; and the pipeline switching mechanism is configured to automatically switch the fluid communication or non-fluid communication between the second bottom flushing pipeline and the water inlet valve in response to the water level in the second water tank.

By arranging the line switching mechanism for switching the fluid communication between the second backwash line and the feed valve also in the second tank, it is possible to also obtain faster backwash responsiveness in accordance with a rapid change in the water level in the second tank.

Advantageously, the toilet bowl further comprises a drain valve arranged in the first tank, the second outlet end of the second bottom flush line being fluidly connectable to the drain valve such that water can flow via the drain valve to the waste outlet for bottom flushing the waste receiving tank. The opening and closing of the bottom flushing can be better controlled by arranging a drain valve in fluid connection with the second bottom flushing pipeline.

Particularly preferably, the drain valve can be configured to be opened by means of the water energy in the second backwash line to start the backwash of the dirt receiving tank. Therefore, the drain valve can be opened by controlling the communication between the water inlet valve or the second bottom flushing pipeline and the water inlet valve, the response is faster, water is saved, and the operation of a user is less laborious.

In some embodiments, the line switching mechanism may include a first line switching mechanism that may be configured to switch between a first position that fluidly communicates the first flushing line with the inlet valve and a second position that fluidly does not communicate the first flushing line with the inlet valve.

By separately arranging the pipeline switching mechanism special for the first flushing pipeline, the switching of the first flushing pipeline can be independently carried out, so that less fluid interference and more flexible control possibility are realized.

Further, the line switching mechanism may include a second line switching mechanism configured to switch between a first position in which the second bottoming line is in fluid communication with the water inlet valve and a second position in which the second bottoming line is not in fluid communication with the water inlet valve, the first position of the second line switching mechanism enabling opening of the drain valve.

Likewise, by separately providing a pipe switching mechanism dedicated to the second bottom flushing pipe, the second bottom flushing pipe can be switched independently, so that less mutual fluid interference and more flexible control possibility are realized.

Advantageously, the first and/or second line switching means may comprise a float-type actuating device, which may comprise a float element and an actuating element mechanically connected thereto, and a switching valve, which acts on the actuating element.

The first circle flushing pipeline and the second bottom flushing pipeline can be stably switched with or without the water inlet valve through the simple structure of the float type actuating device and the switching valve.

For example, the float-type actuating device may further include a control member for controlling floating elevation thereof in the second tank. Thereby, a more accurate control of the switching timing can be achieved.

In particular, a third drain valve switching mechanism may be further disposed in the first tank, and the third drain valve switching mechanism may be configured to close the drain valve in response to a drop in the water level in the first tank.

The closing time of the drain valve can be stably realized by the third drain valve switching mechanism, thereby achieving the purpose of saving water.

Particularly preferably, the toilet bowl may further comprise a flush switch, which may be arranged to open only the inlet valve when actuated, while the drain valve is configured as a hydraulic valve that can be opened under water pressure.

Controlling the opening of the discharge valve by means of the water pressure of the water inlet valve facilitates the operation of the toilet by the user (e.g., less force) and achieves faster responsiveness (e.g., more water saving).

Drawings

Fig. 1 schematically shows a cross-sectional view taken along a horizontal plane of an embodiment of a toilet according to the present invention, wherein mainly a water inlet valve, a water discharge valve and at least a part of a first flushing line and a second bottom flushing line located in a second tank are shown;

fig. 2 schematically shows a side view of an embodiment of the toilet bowl according to the invention, in which mainly the connection line from the drain valve to the sewage discharge at the bottom of the sewage receiving tank is shown;

FIG. 3 illustrates in more detail the various components disposed within the second tank, including the line switching mechanism, the first ring flush line, and the second bottom flush line, according to the embodiment of FIG. 1;

FIG. 4 schematically illustrates, from the rear, a feed valve, a second tank, a drain valve, and the like according to the embodiment of FIG. 1;

FIG. 5 schematically illustrates a cross-sectional view taken along section A-A shown in FIG. 3, primarily illustrating the jet flow-increasing structure of the first ring of flushing lines;

figure 6 schematically shows a cross-sectional view taken along a vertical plane of an embodiment of a toilet bowl according to the present invention; and

fig. 7 schematically shows the internal structure of the time delay float according to an embodiment of the present invention.

List of reference numerals:

100, a toilet bowl;

a base body 110;

112 a sewage accommodating groove;

114, collecting dirty surfaces;

115 sewage draining outlet;

116 a water conduit;

punching an orifice 117 circles;

118 connecting the pipelines;

119 inner edge portion;

120 a first water tank;

122 a water inlet valve;

124 first circuit flushing pipe;

124a first nozzle;

124b a first gap;

124c a first throat;

126 second bottom punch line;

a 128-drain valve;

129 overflow pipe;

130a second water tank;

130a water level of the second tank;

132 an actuating element of a second float-type actuating device;

134 a float element of the second float-type actuating means;

136 the actuating element of the first float-type actuating device;

138 the float element of the first float-type actuation means;

140 a time delay float;

141a delay volume;

141a water outlet of the delay cavity;

a 142 connecting rod;

142a latching portion.

Detailed Description

It should be noted that the drawings referred to are not all drawn to scale but may be exaggerated to illustrate various aspects of the present invention, and in this regard, the drawings should not be construed as limiting.

In the present invention, the term "toilet bowl" refers to the entire cleaning system for flushing a toilet, including, for example, a seat body 110 having a dirt receiving groove 112, a toilet bowl lid (particularly, an intelligent lid), a toilet bowl tank, various pipes, wires, joints, fittings, etc. It can be understood that the utility model discloses a toilet bowl itself does not limit the type yet, and intelligent toilet bowl, hydrocone type toilet bowl, various traditional toilet bowls are all in the utility model discloses an within range.

As shown in fig. 1, the toilet bowl 100 of the present invention includes a seat 110, such as the seat 110 made of ceramic material. In the case of a wall-mounted toilet, the rear portion of the seat 110 may directly abut against a wall surface to which it is mounted, whereas in the case of a non-wall-mounted toilet, the rear portion of the seat 110 may be disposed at a distance from the wall surface. A toilet cover can be directly arranged above the seat body 110 of the toilet 100, and the toilet cover can be an intelligent toilet cover, i.e. a toilet cleaning function, a drying function, a disinfecting function and the like can be provided for users according to requirements.

The housing 110 has a dirt receiving groove 112 (or a dirt receiving basin), and the dirt receiving groove 112 has a suitable size and shape to facilitate the toilet of a user. The dirt collection tank 112 generally includes a dirt collection surface 114 and a dirt discharge outlet 115 located at the bottom of the tank. The dirt collecting surface 114 (or inner wall of the dirt collecting groove, dirt receiving surface) extends downwards from the top of the dirt collecting groove 112 and converges to the dirt discharging outlet 115.

The seat body 110 further includes an inner edge 119 positioned at an upper portion of the dirt receiving groove 112, and a water conduit 116 connecting the inner edge 119 and the tank, the inner edge 119 serving as a flow path through which water supplied to the dirt receiving groove 112 flows while rotating, and the inner edge 119 being formed as a substantially circular (in plan view) flow path along an upper edge of the dirt receiving groove 112. In order to realize the aforementioned circling function, the end portion on the downstream side of the water conduit 116 is opened at the rim portion 119 (for example, at the portion on the right side of the rim portion 119), which is a circling punch 117 as an outlet for water, and when water is supplied from the first water tank 120 to the water conduit 116, the water is ejected from the circling punch 117 and supplied to the rim portion 119, that is, flush water for washing the dirty surface 114, as best shown in fig. 1.

The water in the water conduit 116 flushes the soil receiving surface 114 from top to bottom through the flushing ring opening 117, so that the soil receiving surface 114 can be cleaned sufficiently and without any dead space. Alternatively, the ring-flushing hole 117 of the present invention may be directly opened on the dirt-receiving surface 114, for example, at any suitable position of the dirt-receiving surface 114 from the top to the bottom of the dirt-receiving groove 112.

Further, it is preferable that the structure of the soil receiving surface 114 is configured to facilitate the rotation of the water flow, so that the water flowing out of the ring-punching holes 117 swirls while it washes the soil receiving surface 114 from above to below, thereby more thoroughly cleaning the soil receiving surface 114 and the soil receiving groove 112.

According to the utility model discloses a toilet bowl 100 includes first water tank 120 (also can be called big water tank) for hold and wash the water of receiving dirty groove 112, its concrete structure and form are not limited, as long as be used for storing any storage device who is used for washing toilet bowl 100's water all the within range of the utility model. Preferably, the first water tank 120 is a ceramic water tank. For example, the first tank 120 is generally disposed at a position close to a wall surface behind the seat 110 of the toilet 100, but other positions relative to the seat 110 are not excluded. In addition, the volume of the first tank 120 may be of many alternative types, including a small low profile tank, but may also be a conventional tank having a height slightly below the height of the open lid.

In the present invention, although the description is made in a manner that various components (for example, a water inlet assembly, a water discharge assembly, a flushing line, etc., which will be described in detail below) are "disposed inside the first water tank," it is not excluded that some of these components or a part of these components are located outside the tank body of the first water tank 120. For example, although various mechanisms and plumbing are described as being disposed within the first tank 120, it is not excluded that a portion thereof is located outside of the tank. For example, a portion of the flush line may extend directly from the tank into the interior of the housing 110 of the toilet 100 or in other structures between the tank and the housing 110 (i.e., not completely within the first tank 120).

For toilets, a common water supply source is water (tap water) in a water supply network. According to the present invention, a water inlet assembly is first disposed in the first water tank 120, the water inlet assembly includes a water inlet valve 122, and the water inlet valve 122 is used to control whether water from a water supply source enters the water tank. The water inlet valve 122 may be controlled to be filled by the level of water in the water tank, but may be directly opened by a user operation and closed after the water level exceeds a predetermined level to prevent excessive water inflow.

According to the present invention, the toilet bowl 100 further includes a second tank 130 (which may be called a small tank because its volume is generally smaller than the first tank 120) disposed in the first tank 120, and water for flushing the dirt receiving groove 112 is also contained in the second tank 130.

As shown in fig. 6, the second water tank 130 may be disposed within the first water tank 120 such that the water level line within the first water tank 120 is always lower than the body of the second water tank 130. That is, when the water in the first water tank 120 is at the highest predetermined level, the water in the first water tank 120 does not flow into the second water tank 130. On the contrary, when the water level in the second water tank 130 is continuously raised, water may overflow from the second water tank 130 into the first water tank 120 to fill the first water tank 120. For example, in the case where the second water tank 130 is provided with an overflow port so that the water in the second water tank 130 can overflow into the first water tank 120, it is ensured that the water level in the first water tank 120 does not reach the overflow port at all times.

Preferably, the second water tank 130 is a plastic water tank. The second water tank 130 is advantageously fixedly arranged in the first water tank 120, i.e. the position of the second water tank 130 relative to the first water tank 120 does not change. However, the present invention does not exclude the floating arrangement of the second water tank 130 in the first water tank 120, so as to float up and down along with the water level of the first water tank 120.

In the present invention, when it is described that a certain component is "disposed/located in a water tank", that is, it does not exactly describe whether it is located in the aforementioned first water tank 120 or second water tank 130, it means that the component may be located in the first water tank 120 except for the second water tank 130, or may be located in the second water tank 130, or a part thereof may be located in the second water tank 130 and another part may be located in the first water tank 120 except for the second water tank 130.

To accomplish the flushing of the toilet 100, the toilet 100 includes a first flushing line 124 disposed within the second tank 130 or may extend from within the second tank 130 (see, e.g., fig. 3 and 6). As mentioned above, a portion of the first flushing line 124 may also be arranged outside the second water tank 130, but its main portion should be located inside the second water tank 130. The first flushing line 124 includes a first inlet end, a first outlet end, and a line extending therebetween. Specifically, the first flushing line 124 is in fluid communication with the water inlet valve 122 located within the first water tank 120 by a first water inlet end thereof, such that water entering through the water inlet valve 122 can flow into the first flushing line 124 through the first water inlet end. The first flushing pipe 124 is in fluid communication with the ring punching hole 117 provided on the seat body 110 of the toilet 100 via a first water outlet end thereof, so that water in the first flushing pipe 124 can flow to the ring punching hole 117 to flush the dirt receiving surface 114 of the dirt receiving groove 112 therethrough.

It is to be understood that the present invention does not preclude the presence of intermediate fluid components (e.g., additional lines, various fluid valves, etc.) between the inlet valve 122 and the first ring flushing line 124 and/or between the ring punch 117 and the first ring flushing line 124. For example, as previously described, the first water outlet end of the first ring punch line 124 may be in direct fluid communication with the water conduit 116 (see fig. 1) such that water flows through the water conduit 116 to the ring punch 117.

To achieve the bottom flush of the toilet 100, the toilet 100 includes a second bottom flush line 126. In the present invention, the terms "first" and "second" do not denote a precedence or priority, but merely denote that the two pipelines are independent of each other. It should be understood that the first and second washout lines 124, 126 may also converge on a manifold that is directly connected to the fill valve 122, for example, but this does not alter the fact that the first and second washout lines 124, 126 are separate lines.

The second bottom flushing line 126 includes a second water inlet end and a second water outlet end. The second bottom wash pipe 126 is fluidly communicable with the water inlet valve 122 by way of a second water inlet end thereof such that water entering through the water inlet valve 122 can flow into the second bottom wash pipe 126 through the second water inlet end. The second backwash line 126 is used to supply water to (i.e., can be in fluid communication with) the bottom of the sump 112 for backwash, as shown in fig. 6. The second backwash line 126 may be in communication with the bottom of the sump 112 via a fluid valve (e.g., a drain valve as described in more detail below), but may also be in direct communication therewith. For example, in FIG. 2, a connection 118 from the drain valve to a waste receptacle 115 at the bottom of the waste receptacle is shown.

By "capable of" fluid communication with the water inlet valve 122 as described above, it is meant that the first flushing line 124 and the second flushing line 126 are capable of selective fluid communication with the water inlet valve 122. In other words, the water entering the water tank through the water inlet valve 122 may flow to the first and second bottom flushing pipes 124 and 126 simultaneously or alternatively to the first and second bottom flushing pipes 124 and 126, respectively, according to the operation timing. In a preferred embodiment, water from the inlet valve 122 may flow to both the first rim flush line 124 and the second bottom flush line 126 simultaneously. It should be understood that the present invention does not preclude water entering the tank through the inlet valve 122 from flowing into other pipes or water storage devices than the first washdown pipe 124 and the second washdown pipe 126.

In order to achieve a pressurization effect, thereby more thoroughly washing the dirt receiving groove 112 or saving water under the same washing effect, the toilet bowl 100 according to the present invention may include a jet flow increasing structure (e.g., venturi structure).

Specifically, the first flushing circuit 124 may include a first jet flow increasing structure configured to generate a negative pressure when a continuous flow of water (due to its pressure) from the water inlet valve 122 passes through the first jet flow increasing structure, thereby drawing water in the second tank 130 into the first flushing circuit 124. It will be appreciated that the amount of water flowing into the first flushing line 124 via the water inlet valve 122 is too small to meet the need for flushing, and therefore the purpose of passing the large amount of water in the second tank 130 to the flushing aperture 117 can be achieved by generating a negative pressure through the first jet flow increasing structure with a small amount of water from the water inlet valve 122.

In a preferred embodiment, the first jet flow increasing structure is arranged within the second tank 130, which is submerged by the water within the second tank 130. Thus, a negative pressure can be created as the continuous water from the inlet valve 122 flows through the first jet increasing structure, thereby drawing water from the second tank 130 into the first flushing line 124. In a more preferred embodiment, not only the first jet plenum, but also the first coil 124, or a substantial portion thereof, is located within the second tank 130. The technical advantage of the arrangement of the first jet flow increasing arrangement or the first flushing line 124 in the second water tank 130 will be explained further below.

In some embodiments, as shown in fig. 5, the first jet flow-increasing structure of the first ring of flushing pipes 124 may include a first nozzle 124a near the first water inlet end, a first throat 124c, and a first gap 124b between the first nozzle 124a and the first throat 124 c. The first throat 124c is proximate the first outlet end and is advantageously aligned with the first nozzle 124 a. When the water from the inlet valve 122 flows through the first gap under a certain pressure, a negative pressure is generated in the first throat 124c, so that the water in the second tank 130 flows into the first throat 124c along with the pressurized water and then flows out from the first outlet end, thereby achieving the effect of increasing the jet flow. The first jet flow increasing arrangement can also be referred to as a jet pump arrangement or a jet valve arrangement.

Therefore, certain water pressure can be ensured in the process of flushing the water ring, so that the flushing effect is better without completely utilizing the gravitational potential energy of the water in the water tank. The time for flushing is significantly reduced compared to the conventional water tank type structure due to the sufficient energy and flow rate, and the required amount of water is also reduced, thereby providing a possibility of miniaturizing the first water tank 120.

In some embodiments, the second bottom flushing pipe 126 may also include a second jet flow increasing structure, which is also configured to generate a negative pressure when the continuous water from the water inlet valve 122 flows through the second jet flow increasing structure, so as to suck the water in the water tank into the second bottom flushing pipe 126, and the operation principle (i.e., utilizing the venturi effect) of the second bottom flushing pipe is the same as that of the first jet flow increasing structure, and thus the description thereof is omitted.

In order to control the flow or diversion of the incoming water to the bottom flush and the rim flush, the toilet 100 according to the present invention includes a pipe switching mechanism to enable easy switching between the fluid communication of the first rim flush pipe 124 with the water inlet valve 122 and the fluid communication of the second bottom flush pipe 126 with the water inlet valve 122, so that the water may flow to the first rim flush pipe 124 in some cases and to the second bottom flush pipe 126 in other cases.

Advantageously, the line switching mechanism is disposed within the second tank 130, thereby enabling self-switching of fluid communication between the first flush line 124 and the fill valve 122 or between the second bottom flush line 126 and the fill valve 122 in response to a water level within the second tank 130. In other words, the switching operation of the pipe switching mechanism according to the present invention is initiated by the level of the water in the second water tank 130, not by the level of the water in the first water tank 120 as in the prior art.

Since the second tank 130 is disposed in the first tank 120 with a volume smaller than, preferably much smaller than, the volume of the first tank 120, when the toilet stool 100 starts to be flushed, the first use of water in the second tank 130 causes a rapid change (drop) in the water level because the same amount of water changes more rapidly in the second tank 130 with a small cross-section. This can allow the action of the line switching mechanism to be very rapid as well (when compared to the situation where the line switching mechanism is located within a large cistern). This arrangement also makes the entire flushing process more water efficient.

Specifically, in order to ensure clean flushing of the soil receiving surface 114 and water saving, it is preferable to perform the rim flushing and then the bottom flushing when the user starts flushing the toilet 100. To this end, the pipe switching mechanism is configured to first fluidly communicate the feed valve 122 with the first bottom flushing pipe 124 when the water level in the second water tank 130 is high, and to fluidly communicate the feed valve 122 with the second bottom flushing pipe 126 when the water level drops to a predetermined value.

In some embodiments, the line switching mechanism may be configured to switch from a first position for fluid communication between the first flush line 124 and the water inlet valve 122 to a second position for simultaneous fluid communication between the second bottom flush line 126 and the water inlet valve 122 in response to a decrease in the water level within the second tank 130.

In other embodiments, however, the line switching mechanism may preferably be configured to switch from a first position for fluid communication between the first flush line 124 and the water inlet valve 122 to a second position for no longer fluid communication between the first flush line 124 and the water inlet valve 122 in response to a decrease in the water level within the second tank 130, and to switch from a second position for no fluid communication between the second bottom flush line 126 and the water inlet valve 122 to a first position for fluid communication between the second bottom flush line 126 and the water inlet valve 122 in response to a decrease in the water level within the second tank 130. In this case, a more flexible control of the ring and bottom punching processes can be achieved.

The advantage of performing the ring flushing first and then performing the bottom flushing is that, when the bottom flushing is performed, the water flowing out from the ring flushing hole 117 during the previous ring flushing has flowed into the water seal at the bottom of the dirt containing groove 112 of the toilet bowl 100, so that the water volume of the water seal at the bottom of the dirt containing groove 112 of the toilet bowl 100 is increased, and therefore, the aforementioned siphon can be generated only by small injection pressure, thereby improving the flushing effect of the toilet bowl 100 and simultaneously playing a water-saving effect.

Therefore, the pipeline switching mechanism according to the present invention may comprise one or more switching mechanisms. With only one switching mechanism, it may be possible to utilize the switching mechanism to simultaneously achieve that fluid communication between the first washout line 124 and the fill valve 122 is no longer established and fluid communication between the second bottoming line 126 and the fill valve 122 is initially established. With multiple switching mechanisms, a first line switching mechanism may be utilized to effect only a switch of whether fluid communication is between the first washout line 124 and the water inlet valve 122, while a second line switching mechanism may be utilized to effect only a switch of whether fluid communication is between the second washout line 126 and the water inlet valve 122. In the latter case, therefore, independent control of these two steps can be achieved.

In a particularly advantageous embodiment, the line switching mechanism may include a first line switching mechanism configured to be switchable between a first position at which the first flush line 124 is in fluid communication with the water inlet valve 122 and a second position at which the first flush line 124 is not in fluid communication with the water inlet valve 122, and a second line switching mechanism configured to be switchable between a first position at which the second flush line 126 is in fluid communication with the water inlet valve 122 and a second position at which the second flush line 126 is not in fluid communication with the water inlet valve 122.

In this case, it is possible to simultaneously cut off the communication of the first flushing line 124 with the water inlet valve 122 and open the communication of the second flushing line 126 with the water inlet valve 122 or simultaneously cut off the communication of the second flushing line 126 with the water inlet valve 122 and reopen the communication of the first flushing line 124 with the water inlet valve 122, but it is preferable that the communication of the second flushing line 126 with the water inlet valve 122 is also open with the first flushing line 124 still in fluid communication with the water inlet valve 122.

In some embodiments, it may be ensured that the time difference between the first washout line 124 no longer being in fluid communication with the fill valve 122 and the second bottoming line 126 beginning to be in fluid communication with the fill valve 122 is sufficiently small to avoid a feeling of discontinuity between the washout and bottoming processes. In other embodiments, however, the second tank 130 may be directly supplied with water from the inlet valve 122 in a second position where the first flushing line 124 is no longer in fluid communication with the inlet valve 122.

In some embodiments, the circuit switching mechanism (e.g., the first circuit switching mechanism and/or the second circuit switching mechanism) can include a switching valve that can be switched back and forth between the aforementioned first and second positions. In the case of only one line switching mechanism, a switching valve may be provided in a tee or manifold having a first end connected to the inlet valve 122, a second end connected to the first washout line 124, and a third end connected to the second washout line 126. In the first position, the switching valve is switched such that the first end of the junction communicates with the second end, and in the second position, the switching valve is switched such that the first end of the junction communicates with the third end. Therefore, the pipeline switching mechanism with simple structure, reliability and stability can be obtained.

In some embodiments, the switching valve may simply be provided as a shutter. When the line switching mechanism is in the first position, the flapper blocks a flow path to the second bottoming line 126, such as a third end in a tee or multi-way junction, and when switching from the first position to the second position, the flapper may be pivoted or linearly displaced to a position blocking a flow path to the first clicker line 124 (e.g., blocking a second end in a junction) and exposing a flow path to the second bottoming line 126. It will be appreciated that the switching valve may be switched back and forth, for example to automatically return to the first position when the water level rises.

In a preferred embodiment comprising a first line switch dedicated to the first washout line 124 and a second line switch dedicated to the second washout line 126, the first and second switch valves may be provided directly in the first washout line 124 and in the second washout line 126, respectively. Preferably, the switching valve is located near the position where the inlet valve 122 is located to reduce the length of the pipeline between the switching valve and the inlet valve 122.

For actuating such a switching valve, the line switching mechanism advantageously also comprises an actuating device, for example a float-type actuating device. The float type actuating means may move up and down in response to the level of water in the second water tank 130. This up and down movement may then cause the switching valve or other switching element to switch between the aforementioned first and second positions. For example, such a float-type actuating device may comprise a float element and an actuating element mechanically connected to the float element, which then acts on the switching valve to effect the switching operation.

As shown in fig. 3, the first pipe switching mechanism may include a first float-type actuating device. When the first ringing line 124 is in fluid communication with the inlet valve 122 and the first jet flow increasing structure is used to draw water in the second tank 130 into the first ringing line 124 for ringing, the water level in the second tank 130 rapidly drops, thereby causing the first float-type actuator to also drop. When it falls to the first level, the switching valve located in the first flushing line 124 is caused to pivot, thereby cutting off the fluid communication between the first flushing line 124 and the water inlet valve 122. Thereby, the water in the second water tank 130 stops flowing to the ring punching hole 117 via the first ring punching line 124, and the ring punching process is finished.

Further, as also shown in fig. 3, the second pipe switching mechanism may include a second float-type actuating device. The float member 138 of the first float-type actuating means is connected by a linkage to the actuating member 136 of the first float-type actuating means, and the float member 134 of the second float-type actuating means is similarly connected by another linkage to the actuating member 132 of the second float-type actuating means, such that the up-and-down movement of the float member causes the up-and-down movement of the actuating member by the lever action of the linkage. In some embodiments, for example, the up-and-down movement of the actuating element may pull out a blocking element (not shown) plugged in the line to bring the corresponding line into flow communication (as a simplified design of the switching valve).

Preferably, the first water level is controllable or presettable. For example, the first float-type actuating means of the first line switching mechanism may include a first control element, such as a weight element or a time delay element, for controlling the floating lift of the first float member thereof in the second tank 130. The first control element may be configured to control, in particular delay, the rate of descent of the first float element of the first float-type actuation means with water level.

Similarly, the second line switching mechanism may also include a second float-type actuating device. When the first ringing line 124 is in fluid communication with the feed valve 122 and the first jet flow increasing structure is used to suck the water in the second tank 130 into the first ringing line 124 for ringing, the water level in the second tank 130 rapidly drops, thereby causing the second float-type actuating means of the second line switching mechanism to also drop. When it falls to the second water level, the second switching valve located in the second bottom flushing pipe 126 is driven to pivot (or linearly displace), thereby opening the fluid communication between the second bottom flushing pipe 126 and the water inlet valve 122. Thereby, the bottom punch process is initiated.

Preferably, the second water level is also controllable or presettable. Similarly, the second float-type actuating device may also include a second control element, such as also a weight element or a time delay element, which controls the floating raising and lowering of its second float element within the second tank 130. The second control element may be configured to control, in particular delay, the rate of descent of the second float element of the second float-type actuation means with water level.

In some embodiments, the weighted or time delay element may be configured in the form of a time delay float 140, for example in the form of a plastic block, that is located below the float element 134/138 (also referred to as a switch float). For example, as shown in fig. 7, the delay float 140 may float up and down within the delay chamber 141 and also slidably fit over the linkage 142 (i.e., not fixed relative to the linkage 142), while the float member 134/138, i.e., the switching float, is fixed to the linkage 142 and thereby directly moves the linkage 142.

When there is no delay float 140, then as the water level in the second tank drops, the float member 134/138, i.e., the switch float, also drops rapidly and moves the linkage 142 and corresponding actuator to effect switching of the first ring of flushing lines 124 or switching of the second bottom flushing lines.

When the delay float 140 is present, since the delay float 140 and the delay chamber 141, etc. are immersed in the second tank 130, that is, the delay float 140 is positioned at the upper portion of the delay chamber 141 by buoyancy and has a force for preventing the switching float from falling, when the water level of the second tank 130 falls, the water line 130a of the second tank moves from top to bottom, and although the switching float also has a tendency to fall along with it, since the water level in the delay chamber 141 is full, the delay float 140 always pushes against the switching float so as not to fall rapidly, and it is necessary to wait until the water line 130a falls to the lower portion of the delay float 140 and the delay float 140 falls along with it. Therefore, the falling of the float member 134/138, i.e., the switching float, is delayed. The latch 142a of the link 142 can adjust the position at which the switching float is fixedly connected to the link 142.

Advantageously, the first level and the second level are independent water level values, but may also be the same value. In the former case, fluid communication of the second bottoming line with the fill valve 122 may be established later than fluid communication of the first flushing line 124 with the fill valve 122, but earlier than no longer fluid communication of the first flushing line 124 with the fill valve 122, rather than resuming fluid communication of the second bottoming line with the fill valve at the same time or later as the first flushing line 124 is no longer in fluid communication with the fill valve. In the latter case, the moment when the first flushing line 124 is no longer in fluid communication with the water inlet valve 122 is substantially the moment when the second bottom flushing line 126 is established in fluid communication with the water inlet valve 122 or the time difference between the two is short.

In fig. 3, the actuating element 136 and the float element 138 of the first float-type actuating device of the first pipeline switching mechanism and the actuating element 132 and the float element 134 of the second float-type actuating device of the second pipeline switching mechanism are shown by way of example, and each actuating element and the corresponding float element may be connected by way of a connecting rod, for example, as described above, but other mechanical connections or direct connections of the float elements and actuating elements (i.e., without intermediate acting elements) are also conceivable.

Furthermore, the toilet bowl 100 according to the present invention further comprises a drain assembly comprising a drain valve 128 (preferably a drain valve), which drain valve 128 is also arranged in the tank, in particular in the first tank 120. The drain valve 128 controls the flow of water therethrough into the housing 110, primarily the dirt collection tank 112.

The second outlet end of the second bottom flush line 126 may be in fluid communication with a drain valve 128 to allow water to flow through the drain valve 128 to a waste outlet 115 at the bottom of the waste receptacle 112. Here, the water may be water from a water tank (e.g., the first water tank 120) in which the drain valve 128 is located, or may be water from the feed valve 122 via the second bottom wash line 126. In any case, the water flowing to the housing 110 via the drain valve 128 can flush the dirt receiving groove 112. For example, the second outlet end of the second bottom flush line 126 may be in direct communication with the overflow tube 129 of the drain valve 128. Also shown in fig. 4 is an overflow pipe 129 of the drain valve.

It is particularly advantageous that the drain valve 128 according to the present invention may be a hydraulic valve rather than a conventional barrel valve or other mechanical valve. The traditional barrel valve needs to be directly operated and opened by an operating rod, and a user is labor-consuming and does not save water. The hydraulic valve can be automatically opened in response to water pressure, and is high in response speed, labor-saving and more water-saving.

As previously described, the second line switching mechanism may be configured to switch between a first position in which the second bottoming line 126 is in fluid communication with the water fill valve 122 and a second position in which the second bottoming line 126 is not in fluid communication with the water fill valve 122. In the embodiment where the drain valve 128 is a hydraulic valve, in the first position, the drain valve 128 can be opened by the water pressure from the inlet valve 122, and after the drain valve 128 is opened, a large amount of flushing water from the first water tank 120 can flow to the bottom of the dirt receiving tank 112 of the housing 110 through the drain valve 128. In other words, the drain valve 128 may be configured to open the drain valve 128 with water in the second backwash line 126 to begin the backwash of the dirt receiving tank 112.

The toilet 100 may include a flush switch, such as a button or knob, that is directly operated by the user. In embodiments of the non-hydraulic drain valve 128, the flush switch may be configured to open the drain valve 128 directly or both the inlet valve 122 and the drain valve 128 simultaneously when actuated by a user. In the preferred embodiment where the drain valve 128 is a hydraulic valve, the flush switch may be configured to open only the inlet valve 122 when actuated by a user, while the drain valve 128 may be opened by the pressure of water in the second bottom flush line 126 (water from the inlet valve 122), or simultaneously while the second bottom flush line 126 is in fluid communication with the inlet valve 122 depending on the water level in the second tank 130.

It is understood that manual actuation of the flush switch by the user is not essential to the invention and may be controlled automatically by the toilet 100, particularly a smart toilet, via a sensing system.

Further, according to the present invention, a third drain valve switching mechanism may be further disposed in the first water tank 120, and configured to close the drain valve 128 in response to a drop in the water level in the first water tank 120 where the drain valve 128 is located. The third drain valve switching mechanism is not limited in structural form, and the first and second line switching mechanisms may be referred to as long as the third drain valve switching mechanism can switch to close the drain valve 128 when the water in the first tank 120 is lower than the second predetermined water level.

In the following, the whole flushing cycle is explained according to an embodiment of the toilet 100 with a hydraulic drain valve of the present invention, but it should be understood that this is only exemplary:

in an initial state, water is stored in both the first and second water tanks 120 and 130.

First, a flush switch is actuated by the user, which will cause the inlet valve 122 in the first water tank 120 to open to control the entry of water from the water supply network with a certain water pressure.

At this time, the first pipeline switching mechanism is in the first position (its initial position), so that the water inlet valve 122 can be in fluid communication with the first flushing pipeline 124, so that water is supplied to the flushing port 117 of the seat body 110 through the first flushing pipeline 124, and the water flows downwards from the flushing port 117 to the bottom sewage outlet 115 along the sewage receiving surface 114, thereby achieving the purpose of flushing.

In this process, the first flushing line 124 causes the water in the second water tank 130 to flow therein (i.e., the water in the second water tank 130 is continuously sucked out) through the first jet flow increasing structure thereof, so that the water level in the second water tank 130 is rapidly lowered.

In response to this water level drop (e.g., reaching a minimum preset level), the first float-type actuator for the first flushing line 124 located within the second tank 130 moves (e.g., the first float member of the float-type actuator also drops with the water level), and then actuates the first switching valve or the like to switch from the first position to the second position of the first line switching mechanism, such that the inlet valve 122 is no longer in fluid communication with the first flushing line 124. So far, the toilet seat ring flushing process is finished.

At the same time or after the ringing is finished, the water in the feed valve 122 may be directly flowed into the second tank 130 to fill it.

When the water level begins to drop until a certain preset level is reached (but above the aforementioned minimum preset level) (e.g., about 2.4 seconds from the beginning of the water level drop), the second float-type actuation device for the second bottom flush line 126 located within the second tank 130 also drops with the water level, and then drives the second switching valve or similar element to switch from the second position of the second line switcher (i.e., its initial position) to the first position such that the inlet valve 122 begins to fluidly communicate with the second bottom flush line 126. The delayed descent of the second float-type actuating device, compared to the first float-type actuating device, can be achieved by the structure of the aforementioned time-delay float 140. To this end, a portion of the water from the inlet valve 122 also flows to the bottoming line 126 and then to the hydraulic valve.

At the same time or thereafter, the hydraulic valve in the first water tank 120 is opened by the water pressure, and thus, a large amount of water in the first water tank 120 flows to the bottom of the dirt receiving groove 112 through the hydraulic valve, thereby starting to bottom flush the dirt receiving groove 112.

At this time, since the water level in the first water tank 120 also rapidly drops, the third drain valve switching mechanism re-closes the drain valve 128 in response to the drop of the water level. It will be appreciated that the drain valve 128 may alternatively be re-closed by a second float-type actuating means (re-floating to the initial position of the second float member) following re-raising of the water level in the second cistern.

So far, the bottom flushing process of the toilet bowl is also finished.

As described above, the water introduced into the water tank through the feed valve 122 starts to fill the second water tank 130 at the same time or after the end of the flushing process, and then overflows from the second water tank 130 into the first water tank 120, thereby filling the first water tank 120. As the water level continues to rise, each switching mechanism returns to its initial position and the inlet valves are closed, completing a cycle. It is understood that the second water tank 130 may be provided with an overflow port at a predetermined position so that water does not completely overflow from the second water tank 130 to enter the first water tank 120, thereby improving water storage efficiency.

Although various embodiments of the present invention have been described in the drawings with reference to examples of toilets capable of ring and bottom flushing, it should be understood that embodiments within the scope of the present invention may be applied to plumbing fixtures having similar structures and/or functions.

The foregoing description has set forth numerous features and advantages, including various alternative embodiments, as well as details of the structure and function of the devices and methods. The intent herein is to be exemplary and not exhaustive or limiting.

It will be obvious to those skilled in the art that various modifications may be made, especially in matters of structure, materials, elements, components, shape, size and arrangement of parts including combinations of these aspects within the principles described herein, as indicated by the broad, general meaning of the terms in which the appended claims are expressed. To the extent that such various modifications do not depart from the spirit and scope of the appended claims, they are intended to be included therein as well.

Claims (12)

1. A toilet bowl, the toilet bowl (100) comprising:

the device comprises a seat body (110) with a dirt containing groove, wherein the dirt containing groove (112) comprises a dirt containing surface (114) and a dirt discharge port (115) positioned at the bottom of the groove, and is provided with a ring punching hole (117);

a first water tank (120) containing water for flushing the dirt holding tank;

characterized in that said toilet bowl (100) further comprises:

a water inlet valve (122) disposed within the first tank (120);

a second water tank (130) also containing water for flushing the sewage receiving tank and arranged in the first water tank (120) such that a water level in the first water tank (120) is lower than the second water tank (130);

a first flushing circuit (124), a first water inlet end of the first flushing circuit (124) being in selective fluid communication with the water inlet valve (122), and a first water outlet end of the first flushing circuit (124) being in fluid communication with the flushing aperture (117) for flushing the dirt receiving tank, wherein the first flushing circuit (124) comprises a first jet flow increasing structure, which is disposed within the second tank (130) and is configured to generate a negative pressure when water from the water inlet valve (122) flows through the first jet flow increasing structure, thereby sucking water within the second tank (130) into the first flushing circuit (124);

a line switching mechanism disposed within the second tank (130) and configured to self-switch fluid communication or non-fluid communication between the first flushing line (124) and the fill valve (122) in response to a water level within the second tank (130).

2. The toilet bowl according to claim 1, characterized in that the toilet bowl further comprises a second bottom flushing pipe (126), a second water inlet end of the second bottom flushing pipe (126) is selectively communicated with the water inlet valve (122) in a fluid mode, and a second water outlet end of the second bottom flushing pipe (126) is communicated with a sewage outlet (115) positioned at the bottom of the tank in a fluid mode, so that the sewage containing tank is subjected to bottom flushing; and the pipeline switching mechanism is configured to automatically switch the fluid communication or non-fluid communication between the second bottom flushing pipeline (126) and the water inlet valve (122) in response to the water level in the second water tank (130).

3. The toilet bowl according to claim 2, further comprising a drain valve (128) disposed within the first tank (120), the second outlet end of the second bottom flush line (126) being in fluid communication with the drain valve (128) such that water can flow through the drain valve (128) to the waste outlet (115) to bottom flush the waste receptacle.

4. A toilet according to claim 3, characterized in that the drain valve (128) is configured to open the drain valve (128) by means of water energy in the second backwash line (126) to start the bottom flushing of the dirt receiving tank.

5. The toilet bowl according to claim 3 or 4, characterized in that the pipe switching mechanism comprises a first pipe switching mechanism configured to be switchable between a first position in which the first flushing pipe (124) is in fluid communication with the water inlet valve (122) and a second position in which the first flushing pipe (124) is not in fluid communication with the water inlet valve (122).

6. The toilet bowl according to claim 5, wherein in the second position of the first pipe switching mechanism, the water from the water inlet valve (122) can supply the water to the second water tank (130).

7. The toilet bowl according to claim 5, characterized in that the line switching mechanism comprises a second line switching mechanism configured to be switchable between a first position in which the second basal line (126) is in fluid communication with the water inlet valve (122) and a second position in which the second basal line (126) is not in fluid communication with the water inlet valve (122), the drain valve (128) being openable when in the first position of the second line switching mechanism.

8. The bowl according to claim 7, characterized in that said first and/or second conduit switching means comprise a float-type actuating device comprising a float element and an actuating element mechanically connected thereto, and a switching valve acted on by said actuating element.

9. The bowl according to claim 8, characterized in that said float-type actuating means further comprise a control element for controlling the floating lifting thereof in said second tank (130).

10. A toilet bowl according to claim 3 or 4, characterized in that a third drain valve switching mechanism is further arranged in the first tank (120), the third drain valve switching mechanism being configured to close the drain valve in response to a drop in the water level in the first tank (120).

11. The bowl according to claim 3 or 4, characterized in that it further comprises a flush switch arranged to open only the inlet valve (122) when actuated, while the drain valve (128) is configured as a hydraulic valve that can be opened under water pressure.

12. The toilet bowl according to claim 1 or 2, characterized in that the pipe switching mechanism comprises a first pipe switching mechanism configured to be switchable between a first position in which the first flushing pipe (124) is in fluid communication with the water inlet valve (122) and a second position in which the first flushing pipe (124) is not in fluid communication with the water inlet valve (122).

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