A low water tank toilet

Abstract

The present invention discloses a low-tank toilet, including a toilet body, a toilet bowl provided on the toilet body, a water tank provided on the side of the toilet bowl, and a drain valve installed at the bottom of the water tank. A scrubbing pipe and a jetting pipe are provided at the top and bottom of the toilet bowl, respectively. A water reservoir is provided inside the toilet body, and the bottom of the drain valve is connected to the water reservoir. One end of the scrubbing pipe is connected to the water reservoir through a scrubbing water supply auxiliary pipe, and one end of the jetting pipe is connected to the water reservoir through a jetting water supply auxiliary pipe. The present invention can reasonably distribute water to the scrubbing pipe and the jetting pipe of the toilet by setting a water reservoir, a scrubbing water supply auxiliary pipe and a jetting water supply auxiliary pipe, and by controlling the pipe diameters of the scrubbing water supply auxiliary pipe and the jetting water supply auxiliary pipe, so that the toilet can achieve the best flushing effect without wasting water.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, and in particular to a low water tank toilet. Background Art

[0002] After the drain valve of the existing low-tank toilet is opened, the water in the water tank first flows into the common secondary water channel, and then flows into the brush ring water pipe and the jet water pipe respectively. Since the common secondary water channel is common, the water volume cannot be reasonably distributed to the brush ring water pipe and the jet water pipe of the toilet. The "water volume ratio" of the brush ring water pipe and the jet water pipe varies with the working water level of the toilet water tank, which easily causes the amount of "brush ring water" or "siphon water" of the toilet to exceed the toilet flushing demand and waste water.

[0003] At the same time, the water tank of the existing low-tank toilet is generally low, and the amount of water stored in the water tank above the washing hole is small. In addition, the position of the jet pipe is low, and when the water tank is flushed, the water will flow into the jet pipe first, resulting in very little water for washing the toilet bowl. Therefore, the existing low-tank toilet generally has the problems of incomplete washing, short washing time and small amount of washing water, resulting in poor washing effect of the low-tank toilet. Summary of the invention

[0004] In view of the above problems, an object of the present invention is to provide a low-tank toilet which can reasonably distribute water to the scrubbing pipe and the spraying pipe and has a good flushing effect.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A low-tank toilet seat comprises a toilet body, on which a toilet bowl is provided. A sinking bay is provided at the bottom of the toilet bowl, and a sewage siphon is connected to the sinking bay. A water tank is provided on the side of the toilet bowl, and a drain valve is installed at the bottom of the water tank. A scrubbing pipe for cleaning the surrounding wall of the toilet bowl is provided at the top, and a jetting pipe for flushing the sinking bay is provided at the bottom. A water reservoir is provided inside the toilet body below the water tank, and the bottom drain port of the drain valve is connected to the water reservoir. One end of the scrubbing pipe is connected to the water reservoir through a scrubbing water supply auxiliary pipe, and one end of the jetting pipe is connected to the water reservoir through a jetting water supply auxiliary pipe.

[0007] Furthermore, in order to isolate the injection pipe from being connected to the outside air through the brush pipe, one end of the brush water delivery auxiliary pipe extends downward into the bottom of the water reservoir.

[0008] Furthermore, in order to allow the water with high liquid level and high potential energy in the water tank to be supplied to the brush water pipe first, the horizontal height of the water inlet of the jet water supply auxiliary pipe is higher than the horizontal height of the water inlet of the brush water supply auxiliary pipe.

[0009] Preferably, in order to ensure that the amount of water used for washing can clean the surrounding wall of the toilet bowl, the height difference H between the water inlet of the washing water supply auxiliary pipe and the water inlet of the jetting water supply auxiliary pipe should satisfy the following relationship: H>V / S, where V is the volume of water required for washing the toilet bowl, and S is the cross-sectional area of ​​the washing water supply auxiliary pipe.

[0010] In one embodiment, the brushing pipe is an annular tube with closed sides, and a plurality of flushing holes facing the peripheral wall of the toilet bowl are evenly distributed along the circumferential direction at the bottom of the annular tube.

[0011] In another embodiment, the scrubbing pipe is an annular water diversion groove with an inner opening, and a first rotary jet port connected to the annular water diversion groove is provided on the side wall of the water reservoir.

[0012] Preferably, a circle of water pipes is provided outside the annular water diversion groove, and a scrubbing water inlet connected to the water reservoir is provided on the side of the water pipes close to the first whirl jet opening. The water pipes are provided with a second whirl jet opening connected to the annular water diversion groove on the opposite side of the whirl jet opening, and the direction of the second whirl jet opening is the same as the flow direction of flushing water in the annular water diversion groove.

[0013] Furthermore, a jet port is provided at the bottom of the toilet bowl at a position opposite to the outlet of the sewage siphon pipe, and the bottom end of the jet pipe is connected to the jet port.

[0014] Furthermore, the lower part of the water tank is sunk into the interior of the toilet body and the highest liquid level of the water tank is higher than the flushing pipe.

[0015] Furthermore, the drain valve is a cylindrical drain valve, and an overflow pipe is fixedly provided on the side of the drain valve, and a completely through overflow channel is arranged inside the overflow pipe, and both ends of the overflow channel are respectively connected to the water tank and the drain port of the drain valve base, and an overflow device for isolating external air is fixedly installed on the upper part of the overflow pipe, and an overflow cap for preventing the generation of vortex is fixedly installed on the top of the overflow pipe, and a water supply pipe which passes through from top to bottom is arranged inside the overflow cap, and a water inlet valve is installed inside the water tank, and the water inlet valve is provided with a water supply pipe, and one end of the water supply pipe is fixedly inserted into the water supply pipe.

[0016] The present invention has the following beneficial effects:

[0017] 1. After opening the drain valve, the water in the water tank flows out through the drain port of the valve base and flows into the water reservoir, and then is transported to the scrubbing pipe and the jetting pipe respectively through the scrubbing water delivery auxiliary pipe and the jetting water delivery auxiliary pipe. By controlling the pipe diameters of the scrubbing water delivery auxiliary pipe and the jetting water delivery auxiliary pipe, the water volume can be reasonably distributed to the scrubbing pipe and the jetting pipe, so that the toilet can achieve the best flushing effect without wasting water.

[0018] 2. One end of the brushing water delivery auxiliary pipe extends downward into the bottom of the water reservoir. When water is stored in the water reservoir, the existence of the water seal can isolate the jet pipe from being connected to the outside air through the brushing pipe. Therefore, when the drain valve drains water, since the air pressure in the jet pipe is lower than the outside air pressure, water will be pre-stored in the jet pipe after each flushing. When the bottom of the toilet is flushed next time, the pre-stored water in the jet pipe can directly act on the siphon pipe, saving the water stroke and greatly improving the flushing effect.

[0019] 3. The horizontal height of the water inlet of the jet water supply auxiliary pipe is higher than the horizontal height of the water inlet of the scrubbing water supply auxiliary pipe. In this way, the water with high liquid level and high potential energy in the water tank can be supplied to the scrubbing water pipe first, which has a good scrubbing effect on the wall of the toilet bowl.

[0020] 4. By installing an overflow device on the overflow pipe of the drain valve, the overflow device isolates the jet pipe from being connected to the outside air through the overflow channel. The water in the reservoir isolates the jet pipe from being connected to the outside air through the scrubbing pipe. Therefore, when the drain valve drains water, since the air pressure in the jet pipe is lower than the air pressure in the outside air, water will be pre-stored in the jet pipe after each flushing. When the bottom of the toilet is flushed next time, the pre-stored water in the jet pipe can directly act on the siphon pipe, saving the water stroke and greatly improving the flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment.

[0022] Figure 2 for Figure 1 Schematic top view of .

[0023] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction.

[0024] Figure 4 for Figure 2 Schematic diagram after the drain valve and water inlet valve are hidden.

[0025] Figure 5 for Figure 4 Schematic diagram of the cross section along direction BB.

[0026] Figure 6 for Figure 5 Schematic diagram of the cross section along the CC direction.

[0027] Figure 7 for Figure 5 Schematic diagram of the cross section along the DD direction.

[0028] Figure 8 for Figure 7 Schematic diagram of the cross section along the EE direction.

[0029] Fig. 9 for Figure 7 Schematic diagram of the cross section along the FF direction.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the second embodiment.

[0031] Fig.11 It is a schematic top view of the toilet body of the second embodiment.

[0032] Fig.12 for Fig.11 Schematic diagram of the cross section along the GG direction.

[0033] Fig.13 for Fig.12 Schematic diagram of the cross section along the HH direction.

[0034] Explanation of the main component symbols: 1. Toilet body; 10. Water reservoir; 101. Scrubbing pipe; 102. Jetting pipe; 103. Scrubbing water supply auxiliary pipe; 104. Jetting water supply auxiliary pipe; 105. Flushing hole; 106. Jetting port; 107. First rotary jet port; 108. Water supply pipe; 109. Scrubbing water inlet; 110. Second rotary jet port; 11. Toilet bowl; 111. Sinking bay; 112. Sewage siphon; 2. Drain valve; 20. Overflow pipe; 200. Overflow channel; 21. Overflow device; 22. Overflow cap; 220. Water supply pipe; 3. Water inlet valve; 30. Water supply pipe. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Embodiment 1

[0037] like Figure 1-9As shown, a low water tank toilet comprises a toilet body 1, on which a toilet bowl 11 is provided. A sinking bay 111 is provided at the bottom of the toilet bowl 11, and a sewage siphon 112 is connected to the sinking bay 111. A scrubbing pipe 101 for cleaning the surrounding wall of the toilet bowl 11 is provided at the top, and a jetting pipe 102 for flushing the sinking bay 111 is provided at the bottom. A water tank 12 is provided on the side of the toilet bowl 11, the lower part of the water tank 12 is sunk into the toilet body 1 and the highest liquid level of the water tank is higher than the scrubbing pipe 101, and a drain valve 2 is installed at the bottom of the water tank 12.

[0038] A water reservoir 10 is provided inside the toilet body 1 below the water tank 12, and the bottom drain port of the drain valve 2 is connected to the water reservoir 10. One end of the scrubbing pipe 101 is connected to the water reservoir 10 through the scrubbing water delivery auxiliary pipe 103, and one end of the jetting pipe 102 is connected to the water reservoir 10 through the jetting water delivery auxiliary pipe 104. Preferably, the scrubbing water delivery auxiliary pipe 103 and the jetting water delivery auxiliary pipe 104 extend downward into the water reservoir 10 respectively, and the scrubbing water delivery auxiliary pipe 104 extends into the bottom of the water reservoir 10. Preferably, the horizontal height of the water inlet of the jetting water delivery auxiliary pipe 104 is higher than the horizontal height of the water inlet of the scrubbing water delivery auxiliary pipe 103.

[0039] Preferably, in order to ensure that the amount of water used for washing can clean the surrounding wall of the toilet bowl 11, the height difference H between the water inlet of the washing water supply auxiliary pipe 103 and the water inlet of the jetting water supply auxiliary pipe 104 should satisfy the following relationship: H>V / S. Wherein, V is the volume of water required for washing the toilet bowl 11, and S is the cross-sectional area of ​​the washing water supply auxiliary pipe 103.

[0040] The scrubbing pipe 101 is a ring pipe with closed sides, and a plurality of flushing holes 105 are evenly distributed along the circumferential direction at the bottom of the ring pipe, facing the peripheral wall of the toilet bowl 11. A jet port 106 is opened at the bottom of the toilet bowl 11 at a position opposite to the pipe opening of the sewage siphon 112, and the bottom end of the jet pipe 102 is connected to the jet port 106.

[0041] The drain valve 2 is a cylindrical drain valve. An overflow pipe 20 is fixedly provided on the side of the drain valve 2. A completely through overflow channel 200 is provided inside the overflow pipe 20. The two ends of the overflow channel 200 are respectively connected to the water tank 12 and the drain port of the base of the drain valve 2. An overflow device 21 for isolating the external air is fixedly installed on the upper part of the overflow pipe 20. An overflow cap 22 for preventing the generation of vortex is fixedly installed on the top of the overflow pipe 20. A water supply pipe 220 is provided inside the overflow cap 22, which is through from top to bottom. A water inlet valve 3 is installed inside the water tank 12. The water inlet valve 3 is provided with a water supply pipe 30. One end of the water supply pipe 30 is fixedly inserted into the water supply pipe 220.

[0042] The principle of this embodiment is as follows: after the drain valve 2 is opened, the water in the water tank 12 flows out through the drain port of the valve base and flows into the water reservoir 10. Since the bottom position of the brush water delivery auxiliary pipe 103 is lower than the bottom position of the spray water delivery auxiliary pipe 104, when the water level in the water reservoir 10 reaches the water inlet position of the brush water delivery auxiliary pipe 103, the water in the water reservoir 10 will give priority to supplying water to the brush water delivery auxiliary pipe 103. Since the highest water level of the water tank 12 is higher than the position of the brush pipe 101, the high water level and high potential energy water in the water tank 12 will flow into the brush pipe 101 through the brush water delivery auxiliary pipe 103, and finally spray out from a plurality of flushing holes 105 to first clean the surrounding wall of the toilet bowl 11 to ensure the brushing effect.

[0043] The first situation: the value of the height difference H between the water inlet of the brush water delivery auxiliary pipe 103 and the water inlet of the jet water delivery auxiliary pipe 104 is small. The water in the water reservoir 10 is first supplied to the brush water delivery auxiliary pipe 103. When the water level in the water reservoir 10 reaches the position of the water inlet of the jet water delivery auxiliary pipe 104, the water in the water reservoir 10 will simultaneously enter the brush pipe 101 and the jet pipe 102 from the brush water delivery auxiliary pipe 103 and the jet water delivery auxiliary pipe 104, respectively, that is, the surrounding wall and the bottom of the toilet bowl 11 are cleaned at the same time.

[0044] The second situation: the height difference H between the water inlet of the washing water delivery auxiliary pipe 103 and the water inlet of the jet water delivery auxiliary pipe 104 is large. The water in the water reservoir 10 is first supplied to the washing water delivery auxiliary pipe 103. Since the liquid level of the water reservoir 10 in the early stage has not reached the position of the water inlet of the jet water delivery auxiliary pipe 104, the high water level and high potential energy water in the water tank 12 all enter the washing pipe 101 from the washing water delivery auxiliary pipe 103 and finally spray out from the plurality of flushing holes 105 to first clean the surrounding wall of the toilet bowl 11. When the high water level and high potential energy water in the water tank 12 has flowed out, some of the low water level water can no longer rise to the scrubbing pipe 101 through the scrubbing water delivery auxiliary pipe 103. When the water level of the water reservoir 10 reaches the position of the water inlet of the jet water delivery auxiliary pipe 104, all the remaining water in the water reservoir 10 will enter the jet pipe 102 through the jet water delivery auxiliary pipe 104, and finally be sprayed out from the jet port 106 to flush the sinking bay 111.

[0045] In this embodiment, the water in the water reservoir 10 can be reasonably distributed to the scrubbing pipe 101 and the spraying pipe 102 by controlling the pipe diameters of the scrubbing water delivery auxiliary pipe 103 and the spraying water delivery auxiliary pipe 104 .

[0046] In this embodiment, an overflow device 21 is installed on the upper part of the overflow pipe 20 of the drain valve 2, and the overflow device 21 isolates the jet pipe 102 from being connected to the outside air through the overflow channel 200. The water in the water reservoir 10 isolates the jet pipe 102 from being connected to the outside air through the scrubbing pipe 101. Therefore, when the drain valve 2 drains water, since the air pressure in the jet pipe 102 is lower than the air pressure in the outside air, the jet pipe 102 will have water pre-stored after each flushing. When the bottom of the toilet is flushed next time, the pre-stored water in the jet pipe 102 can directly act on the siphon pipe 112, saving the stroke of water and greatly improving the flushing effect.

[0047] Embodiment 2

[0048] like Figure 10-13 As shown, the difference between this embodiment and the first embodiment is that the scrubbing pipe 101 is an annular water diversion groove with an inner opening, and a first rotary jet port 107 connected to the annular water diversion groove is provided on the side wall of the water reservoir 10. A circle of water delivery pipes 108 is provided on the outer side of the annular water diversion groove, and the water delivery pipes 108 are provided with a scrubbing water inlet 109 connected to the water reservoir 10 on the side close to the first rotary jet port 107. The water delivery pipes 108 are provided with a second rotary jet port 110 connected to the annular water diversion groove on the opposite side of the scrubbing water inlet 109, and the direction of the second rotary jet port 110 is the same as the flow direction of the flushing water in the annular water diversion groove. The rest of the structure of this embodiment is the same as that of the first embodiment.

[0049] In this embodiment, the water in the water reservoir 10 enters the annular water diversion groove through the brushing water delivery auxiliary pipe 103, and is finally sprayed out from the first spray port 107 and the second spray port 110. The sprayed water is drained through the annular water diversion groove to clean the surrounding wall of the toilet bowl 11. The first rotary flushing spray port 107 and the second rotary flushing spray port 110 are oriented in the same direction as the flushing water of the annular water diversion groove. The water flushed out from both sides follows the same direction of the water flow, and the surrounding wall of the toilet bowl 11 is "spirally" flushed, with a good flushing effect. The principles of the rest of this embodiment are the same as those of the first embodiment.

[0050] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A low water tank toilet, comprising a toilet body, a toilet bowl provided on the toilet body, a sinking bay provided at the bottom of the toilet bowl, a sewage siphon connected to the sinking bay, a water tank provided at the side of the toilet bowl, a drain valve installed at the bottom of the water tank, characterized in that: The top of the toilet bowl is provided with a brushing pipe for cleaning the surrounding wall thereof, and the bottom is provided with a jetting pipe for flushing the sinking bay; a water reservoir is provided inside the toilet body below the water tank; the bottom drain port of the drain valve is connected to the water reservoir; one end of the brushing pipe is connected to the water reservoir through a brushing water delivery auxiliary pipe; and one end of the jetting pipe is connected to the water reservoir through a jetting water delivery auxiliary pipe; The horizontal height of the water inlet of the jet water supply auxiliary pipe is higher than the horizontal height of the water inlet of the brush water supply auxiliary pipe, and the horizontal height difference H between the water inlet of the brush water supply auxiliary pipe and the water inlet of the jet water supply auxiliary pipe should satisfy the following relationship: H>V / S, wherein V is the volume of water required for washing the toilet bowl, and S is the cross-sectional area of ​​the brush water supply auxiliary pipe.

2. A low water tank toilet according to claim 1, characterized in that: One end of the brushing water delivery auxiliary pipe extends downward into the bottom of the water reservoir.

3. A low water tank toilet according to claim 1 or 2, characterized in that: The scrubbing pipe is an annular pipe with closed sides, and a plurality of flushing holes facing the peripheral wall of the toilet bowl are evenly distributed along the circumferential direction at the bottom of the annular pipe.

4. A low water tank toilet according to claim 1 or 2, characterized in that: The scrubbing pipeline is an annular water diversion groove with an inner opening, and a first rotary jet port connected to the annular water diversion groove is provided on the side wall of the water storage tank.

5. A low water tank toilet according to claim 4, characterized in that: A circle of water supply pipes is provided on the outside of the annular water diversion groove, and the water supply pipe is provided with a brushing water inlet connected to the water reservoir on the side close to the first rotary jet outlet, and the water supply pipe is provided with a second rotary jet outlet connected to the annular water diversion groove on the opposite side of the brushing water inlet, and the direction of the second rotary jet outlet is the same as the flow direction of flushing water in the annular water diversion groove.

6. A low water tank toilet according to claim 1, characterized in that: The bottom of the toilet bowl is provided with a jet port at a position opposite to the pipe opening of the sewage siphon pipe, and the bottom end of the jet pipe is connected to the jet port.

7. A low water tank toilet according to claim 1, characterized in that: The lower part of the water tank is sunk into the toilet body and the highest liquid level of the water tank is higher than the flushing pipe.

8. A low water tank toilet according to claim 1, characterized in that: The drain valve is a cylindrical drain valve, and an overflow pipe is fixedly provided on the side of the drain valve. A completely through overflow channel is arranged inside the overflow pipe. The two ends of the overflow channel are respectively connected with the water tank and the drain port of the drain valve base. An overflow device for isolating external air is fixedly installed on the upper part of the overflow pipe, and an overflow cap for preventing the generation of vortex is fixedly installed on the top of the overflow pipe. A water supply pipe that passes through from top to bottom is arranged inside the overflow cap. A water inlet valve is installed inside the water tank, and the water inlet valve is provided with a water supply pipe, and one end of the water supply pipe is fixedly inserted into the water supply pipe.

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