A water-saving toilet

Abstract

The present invention discloses a water-saving toilet, comprising a toilet body, a toilet bowl and a water storage tank, a sinking bend at the bottom of the toilet bowl, and a sewage siphon connected to the sinking bend. A scrubbing water supply pipe for flushing the surrounding wall of the toilet bowl and a jetting water supply pipe for flushing the bottom of the toilet bowl are provided inside the toilet body. A first mounting hole and a second mounting hole are respectively provided at the bottom of the water storage tank, a first drain valve is installed in the first mounting hole, and a second drain valve is installed in the second mounting hole. The scrubbing water supply pipe is connected to the first mounting hole, and the jetting water supply pipe is connected to the second mounting hole. The present invention can reasonably distribute the water to the scrubbing water supply pipe and the jetting water supply pipe of the toilet by controlling the displacement of the first drain valve and the second drain valve, without causing water waste, thereby achieving a better water-saving effect, and at the same time, can achieve efficient transmission of water flow, with small kinetic energy loss in the conduction process and good flushing effect.

Description

Technical Field

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

[0002] There are usually two water pipes inside the toilet, one of which is a brush ring water pipe for flushing the surrounding wall of the toilet bowl, and the other is a jet water pipe for flushing the bottom of the toilet bowl. The brush ring water pipe and the jet water pipe inside the existing toilet are common, so when the drain valve is opened, 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 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. At the same time, since the water storage capacity of the toilet tank is limited, when the drain is opened, the highest pressure of 1-2 liters of water is directly used to fill the common auxiliary water pipe at the front end of the brush ring water pipe and the jet water pipe, resulting in the loss of the conduction kinetic energy of the flushing water, and the effect of brushing and jetting is poor. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide a water-saving toilet which can reasonably distribute flushing water and has a good flushing effect.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A water-saving toilet comprises a toilet body, wherein the toilet body is provided with a toilet bowl and a water storage tank, a sinking bend is provided at the bottom of the toilet bowl, and a sewage siphon is connected to the sinking bend. A scrubbing water supply pipeline for flushing the surrounding wall of the toilet bowl and a jetting water supply pipeline for flushing the bottom of the toilet bowl are provided inside the toilet body. A first mounting hole and a second mounting hole are respectively provided at the bottom of the water storage tank, a first drain valve is installed in the first mounting hole, and a second drain valve is installed in the second mounting hole. The scrubbing water supply pipeline is connected to the first mounting hole, and the jetting water supply pipeline is connected to the second mounting hole.

[0006] Furthermore, the toilet body is provided with a transition water cavity below the first mounting hole, and the scrubbing water supply pipeline is connected to the transition water cavity.

[0007] In one embodiment, the washing water supply pipeline is an annular tube with closed sides, a water inlet connected to the annular tube is opened on one side of the transition water chamber, and a plurality of flushing holes facing the peripheral wall of the toilet bowl are evenly distributed along the circumference at the bottom of the annular tube.

[0008] In another embodiment, the scrubbing water supply pipeline is an annular water diversion groove with an opening on the side, and a first rotary jet port and a second rotary jet port connected to the annular water diversion groove are respectively provided on both sides of the transition water chamber, and the directions of the first rotary jet port and the second rotary jet port are the same as the flow direction of flushing water in the annular water diversion groove.

[0009] Among them, the first drain valve includes a valve body, a valve stem, a bottom plate, an elastomer and a water-stopping rubber pad. A drainage cavity is provided inside the valve body, and a water inlet hole for connecting the water tank and the drainage cavity is provided on the top. The valve stem is arranged on the top of the valve body, and the bottom end of the valve stem extends into the drainage cavity and can move up and down. A connecting part is vertically fixed on the top of the bottom plate, and the connecting part is fixedly connected to the bottom of the valve stem. An overflow channel that completely passes through the valve stem, the connecting part and the bottom plate is provided inside the valve stem along the axis. The water-stopping rubber pad is fixedly installed on the top of the bottom plate, and a first annular plate is fixed on the bottom of the top plate of the valve body along the edge of the water inlet hole. The top of the water-stopping rubber pad is sealed with the bottom of the first annular plate. The elastomer is arranged on the top of the valve body and is in a compressed state, and the upper end of the elastomer presses upward against the valve stem.

[0010] Furthermore, a guide tube is sleeved on the outer side of the lower part of the valve stem, and the guide tube is fixed to the top of the water inlet hole through a plurality of support rods. A limiting step is provided on the lower part of the inner wall of the guide tube, and an annular abutment portion is provided on the outer wall of the valve stem above the limiting step. The elastomer is arranged between the outer wall of the valve stem and the inner wall of the guide tube, and the lower part of the elastomer abuts against the limiting step, and the upper part abuts against the annular abutment portion.

[0011] Furthermore, a counterweight cylinder with an opening at the top is installed on the upper part of the valve stem, and a drain hole is provided on the bottom plate of the counterweight cylinder. Preferably, in order to achieve adjustable counterweight height, a connecting pipe for the valve stem to pass through is fixedly provided at the central axis of the counterweight cylinder, and an internal thread is provided on the inner wall surface of the connecting pipe, and an external thread matching the internal thread is provided on the outer wall surface of the valve stem.

[0012] Preferably, an annular water baffle plate sealed and connected to the water leakage hole is fixed inside the counterweight cylinder, a water-passing notch is provided on the side of the annular water baffle plate, and an adjusting rod rotatable along the axis and used to adjust the water leakage speed is sealed and installed inside the annular water baffle plate. A water leakage channel is provided at the lower part of the adjusting rod, and a water leakage port for connecting the water-passing notch and the water leakage channel is provided on the side wall of the adjusting rod. The opening area of ​​the water leakage port gradually decreases along the side wall of the adjusting rod.

[0013] Preferably, an overflow assembly for sealing the overflow channel is provided at the bottom of the overflow channel. The overflow assembly includes a guide column arranged at the axis of the bottom of the overflow channel, an overflow bottom plate horizontally fixed to the bottom of the guide column, an overflow sealing rubber pad installed above the overflow bottom plate and used to seal the bottom of the overflow channel, and an overflow spring sleeved on the outside of the guide column and pressing upward against the guide column. A second annular plate is fixedly provided at the bottom of the overflow bottom plate along the edge of the overflow channel, and the top of the overflow sealing rubber pad is sealed with the bottom of the second annular plate. An ear for the guide column to pass through is provided at the center of the second annular plate, and the side of the ear is fixedly connected to the inner wall of the second annular plate through a plurality of connecting columns. A buckle is fixed to the upper part of the guide column, and the lower part of the overflow spring presses against the ear, and the upper part presses against the buckle.

[0014] Furthermore, a locking assembly for fixedly connecting with the bottom of the water tank is installed at the lower part of the interior of the drainage chamber, and the locking assembly includes a fixing rod, a screw and a U-shaped hook. The fixing rod is transversely fixed to the bottom of the drainage chamber, and a mounting hole for the screw to pass through is opened on the fixing rod. The U-shaped hook is arranged below the valve body and is threadedly connected with the screw.

[0015] Preferably, the elastic body is a metal spring or a rubber spring.

[0016] Wherein, the second drain valve is a cylindrical drain valve.

[0017] In another embodiment, the first drain valve and the second drain valve are both flap-type drain valves. A first hanging chain for driving the first drain valve to open is provided on the top of the first drain valve, and a second hanging chain for driving the second drain valve to open is provided on the top of the second drain valve. The tops of the first hanging chain and the second hanging chain are respectively connected to a connecting rod, and a wrench connected to the connecting rod and used to drive the connecting rod to rotate to open the first drain valve and the second drain valve is provided on the side of the toilet body.

[0018] In order to realize the overflow function of the water tank, an overflow pipe connected with the transition water chamber is installed on the top of the first drain valve.

[0019] Furthermore, the valve body comprises a base body and a mounting cover buckled on the base body, and a sealing rubber pad is provided at the connection between the mounting cover and the base body. A plurality of protrusions are fixedly provided along the circumferential direction at the same height on the side wall of the base body, and a plurality of fixed slots for engaging with the protrusions are provided on the side wall of the mounting cover.

[0020] The present invention has the following beneficial effects:

[0021] 1. The scrubbing water pipeline and the jetting water pipeline are set independently of each other. By controlling the displacement of the "first drain valve" and the "second drain valve", the water volume is reasonably distributed to the scrubbing water pipeline and the jetting water pipeline of the toilet, which will not cause water waste and achieve a better water-saving effect.

[0022] 2. Neither the first drain valve nor the second drain valve requires electricity, and the purpose of automatic drainage of the water tank can be achieved through a purely mechanical structure. It has a compact structure, small size, reliable operation, simple maintenance, low production and use costs, and a long service life.

[0023] 3. Since there is no common auxiliary water pipeline, the pressure of the flushing water is not lost, the water flow pressure is efficiently transmitted, the kinetic energy loss in the conduction process is small, and the washing effect is greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The schematic diagram is a top view of the water-saving toilet according to the first embodiment.

[0025] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction.

[0026] Figure 3 for Figure 2 Schematic diagram of the cross section along direction BB.

[0027] Figure 4 for Figure 1 Schematic diagram of the cross section along the CC direction.

[0028] Figure 5 This is a schematic diagram of the first structure of the first drain valve of Example 1.

[0029] Figure 6 for Figure 5 Exploded diagram of parts.

[0030] Figure 7 for Figure 5 Schematic diagram of the internal structure.

[0031] Figure 8 for Figure 7 A partial enlarged schematic diagram of part A.

[0032] Fig. 9 A schematic diagram of the three-dimensional structure of the installation cover.

[0033] Fig.10 It is a schematic diagram when the first drain valve is in a closed state.

[0034] Fig.11 This is a schematic diagram of the first drain valve being in an open state.

[0035] Fig.12 This is the status diagram of the first drain valve when the water level in the water tank drops.

[0036] Fig.13 This is the state diagram of the first drain valve when the water level in the water tank gradually rises but does not exceed the counterweight cylinder.

[0037] Fig.14 This is the state diagram of the first drain valve when the water level in the tank exceeds the top of the valve stem and overflows.

[0038] Fig.15 This is a schematic diagram of the second structure of the first drain valve of Example 1.

[0039] Fig.16 for Fig.15 A partial enlarged schematic diagram of part B.

[0040] Fig.17 for Fig.15 Schematic diagram of the three-dimensional structure of the middle adjustment rod.

[0041] Fig.18 for Fig.15 Schematic diagram of the three-dimensional structure of the middle counterweight cylinder.

[0042] Fig.19 This is an exploded view of the parts of the third structure of the first drain valve of Example 1.

[0043] Fig. 20 This is a schematic diagram of the internal structure of the third structure of the first drain valve of Example 1.

[0044] Fig.21 for Fig. 20 A partial enlarged schematic diagram of part C in the middle.

[0045] Fig. 22 Schematic diagram of the overflow bottom plate from top view.

[0046] Fig.23 It is a schematic diagram of the three-dimensional structure of the water-saving toilet of the second embodiment.

[0047] Fig.24 for Fig.23 Schematic top view of .

[0048] Fig.25 for Fig.24 Schematic diagram of the cross section along the DD direction.

[0049] Fig.26 for Fig.25 Schematic diagram of the cross section along the EE direction.

[0050] Fig. 27 for Fig.24 Schematic diagram of the cross section along the FF direction.

[0051] Fig.28 It is a top view schematic diagram of the water-saving toilet of the third embodiment.

[0052] Fig.29 for Fig.28 Schematic diagram of the cross section along the GG direction.

[0053] Fig.30 for Fig.28 Schematic diagram of the cross section along the HH direction.

[0054] Fig.31 It is a top view schematic diagram of the water-saving toilet of the third embodiment.

[0055] Fig.32 for Fig.31 Schematic diagram of the cross section along direction II.

[0056] Fig.33 for Fig.31 Schematic diagram of the cross section along the JJ direction.

[0057] Main component symbol description: 1. Toilet body; 10. Transition water chamber; 101. Scrubbing water pipeline; 102. Jetting water pipeline; 103. Water inlet; 104. Flushing hole; 105. First rotary jet outlet; 106. Second rotary jet outlet; 11. Toilet bowl; 111. Sink; 112. Siphon for sewage discharge; 12. Water storage tank; 121. First mounting hole; 122. Second mounting hole; 2. First drain valve; 200. Sealing pad; 201. Water inlet; 202. Support rod; 203. Limiting step; 204. Annular abutment; 205. First annular plate; 206. Overflow channel; 207. Protrusion; 208. Fixed slot; 209. First hanging chain; 21. Valve body; 210. Drain chamber; 211. Base body; 212, mounting cover; 22, valve stem; 220, guide tube; 23, elastomer; 24, water-stopping rubber pad; 25, bottom plate; 26, connecting part; 27, counterweight cylinder; 270, drain hole; 271, connecting pipe; 272, annular water baffle; 273, water-passing gap; 28, adjusting rod; 280, drain channel; 281, drain port; 29, overflow pipe; 3, second drain valve; 300, second hanging chain; 4, water inlet valve; 51, fixing rod; 510, mounting hole; 52, screw; 53, U-shaped hook; 61, connecting rod; 62, wrench; 71, guide column; 72, overflow bottom plate; 73, overflow sealing rubber pad; 74, overflow spring; 75, second annular plate; 76, ear; 77, connecting column; 78, buckle. DETAILED DESCRIPTION

[0058] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0059] Embodiment 1

[0060] like Figure 1-4 As shown, a water-saving toilet comprises a toilet body 1, on which a toilet bowl 11 and a water storage tank 12 are provided, a sinking bend 111 is provided at the bottom of the toilet bowl 11, and a sewage siphon 112 is connected to the sinking bend 111. A scrubbing water supply pipe 101 for flushing the surrounding wall of the toilet bowl 11 and a jetting water supply pipe 102 for flushing the bottom of the toilet bowl 11 are provided inside the toilet body 1, and the scrubbing water supply pipe 101 and the jetting water supply pipe 102 are independently arranged. A first mounting hole 121 and a second mounting hole 122 are respectively provided at the bottom of the water storage tank 12, a first drain valve 2 is installed in the first mounting hole 121, and a second drain valve 3 is installed in the second mounting hole 122, and the second drain valve 3 is an existing cylindrical drain valve. The scrubbing water supply pipe 101 is connected to the first mounting hole 121, and the jetting water supply pipe 102 is connected to the second mounting hole 122. A water inlet valve 4 for supplying water to the water tank 12 is also installed inside the water tank 12 .

[0061] The toilet body 1 is provided with a transition water chamber 10 below the first mounting hole 121, and the scrubbing water delivery pipe 101 is connected to the transition water chamber 10. The scrubbing water delivery pipe 101 is a ring-shaped pipe with closed sides, and a water inlet 103 connected to the ring-shaped pipe is opened on one side of the transition water chamber 10, and a plurality of flushing holes 104 facing the peripheral wall of the toilet bowl 11 are evenly distributed along the circumferential direction at the bottom of the ring-shaped pipe.

[0062] like Figure 5-9 As shown, the first drain valve 2 includes a valve body 21, a valve stem 22, an elastic body 23 and a water-stopping rubber pad 24. A drain cavity 210 is provided inside the valve body 21, and a water inlet hole 201 for connecting the water storage tank 12 and the drain cavity 210 is provided on the top. A sealing rubber pad 200 for sealing with the wall of the water storage tank 12 is fixedly installed at the bottom of the valve body 21. The valve stem 22 is arranged at the top of the valve body 21, and the bottom end of the valve stem 22 extends into the drain cavity 210 and can move up and down. A guide tube 220 is sleeved on the outer side of the lower part of the valve stem 22. The guide tube 220 is fixed to the top of the water inlet hole 201 through a plurality of support rods 202, and the guide tube 220 is concentric with the water inlet hole 201. A limiting step 203 is provided at the lower part of the inner wall of the guide tube 220, and an annular abutting portion 204 is provided on the outer wall of the valve stem 22 above the limiting step 203. The elastic body 23 is arranged between the outer wall of the valve stem 22 and the inner wall of the guide tube 220 and is in a compressed state, the lower part of the elastic body 23 abuts against the limiting step 203, and the upper part abuts against the annular abutting portion 204. The elastic body 23 is preferably a metal spring or a rubber spring.

[0063] A first annular plate 205 is fixedly provided at the bottom of the top plate of the valve body 21 along the edge of the water inlet hole 201, a bottom plate 25 is fixedly provided at the bottom of the valve stem 22, and a water-stop rubber pad 24 is fixedly installed on the top of the bottom plate 25 and seals with the bottom of the first annular plate 205. A connecting portion 26 is vertically fixedly provided at the top of the bottom plate 25, and the connecting portion 26 is threadedly connected to the bottom of the valve stem 22. An overflow channel 206 is provided inside the valve stem 22 along the axis, which completely penetrates the valve stem 22, the connecting portion 26 and the bottom plate 25.

[0064] A counterweight cylinder 27 with an opening at the top is installed on the upper part of the valve stem 22, and one or more drain holes 270 are provided on the bottom plate of the counterweight cylinder 27 along the circumferential direction. A connecting pipe 271 for the valve stem 22 to pass through is fixedly provided at the central axis of the counterweight cylinder 27, and an internal thread is provided on the inner wall surface of the connecting pipe 271, and an external thread matching the internal thread is provided on the outer wall surface of the valve stem 22.

[0065] A locking assembly for fixing with the bottom of the water tank 12 is installed at the bottom of the drainage chamber 210, and the locking assembly includes a fixing rod 51, a screw 52 and a U-shaped hook 53. The fixing rod 51 is transversely fixed to the bottom of the drainage chamber 210, and a mounting hole 510 for the screw 52 to pass through is opened on the fixing rod 51. The U-shaped hook 53 is arranged below the valve body 21 and is threadedly connected with the screw 52.

[0066] The valve body 21 includes a base body 211 and a mounting cover 212 snapped onto the base body 211. A sealing rubber gasket 200 is provided at the connection between the mounting cover 212 and the base body 211. A plurality of protrusions 207 are fixedly provided along the circumferential direction at the same height on the side wall of the base body 211. A plurality of fixed slots 208 for snapping with the protrusions 207 are provided on the side wall of the mounting cover 212.

[0067] After the second drain valve 3 is opened, the water in the water tank 12 flows into the jet water pipe 102 through the second installation port 122 to flush the bottom of the toilet bowl 11. When the water level drops to a certain height, the first drain valve 2 is triggered to open, and the water in the water tank 12 flows into the scrubbing water pipe 101 through the first installation port 121, and finally sprays out from a plurality of flushing holes 104 to flush the surrounding wall of the toilet bowl 11. By controlling the displacement of the "first drain valve 2" and the "second drain valve 3", the water volume is reasonably distributed to the scrubbing water pipe 101 and the jet water pipe 102 of the toilet bowl 11, so that no water is wasted and the flushing effect is good.

[0068] like Fig.10The schematic diagram of the first drain valve of this embodiment is shown in the closed state. The water storage tank 12 is normally filled with water, the overall gravity of the weight cylinder 27, the valve stem 22, the water stop rubber pad 24, the bottom plate 25, and the connecting part 26 is G1, the elastic body 23 is in a compressed state and generates an elastic force F1, and the pressure of the water pressure on the water stop rubber pad 24 is F2. When F1>G1+F2, the first drain valve 2 is in the closed state.

[0069] like Fig.11 The schematic diagram of the first drain valve of this embodiment is shown in the open state. When the second drain valve 3 of the water storage tank 12 is opened to drain, the water level drops. When the water level is lower than the drain hole 270 of the counterweight cylinder 27, the counterweight cylinder 27 plays a role in storing water and generates gravity G2. The overall gravity of the counterweight cylinder 27, the valve stem 22, the water-stopping rubber pad 24, the bottom plate 25, and the connecting part 26 is G1. The elastic body 23 is in a compressed state and generates an elastic force F3. The pressure of the water pressure on the water-stopping rubber pad 24 is F4. When G1+G2+F4>F3, the first drain valve 2 is in the open state.

[0070] like Fig.12 The diagram shows the state of the first drain valve when the water level of the water tank 12 drops. When the second drain valve 3 of the water tank 12 is opened to drain water, the water level continues to drop, and the water storage capacity of the weight cylinder 27 also drops, generating gravity G3. The overall gravity of the weight cylinder 27, the valve stem 22, the water stop rubber pad 24, the bottom plate 25, and the connecting part 26 is G1. The elastic body 23 is in a compressed state and generates an elastic force F5. The pressure of the water pressure on the water stop rubber pad 24 is F6. When F5>G1+G3+F6, the first drain valve 2 is in a closed state.

[0071] like Fig.13 The figure shows the state of the automatic drain valve when the water level in the water tank gradually rises but does not exceed the counterweight cylinder. When the water inlet device of the water tank 5 starts to take in water, the water level rises, and the counterweight cylinder 27 has no water storage capacity. The overall gravity of the counterweight cylinder 27, the valve stem 22, the water stop rubber pad 24, the bottom plate 25, and the connecting part 26 is G1. The elastic body 23 is in a compressed state and generates an elastic force F1. The pressure of the water pressure on the water stop rubber pad 4 is F7. When F1>G1+F7, the automatic drain valve is in a closed state.

[0072] like Fig.14 The diagram shows the state of the first drain valve when the water level of the water tank 12 exceeds the top of the valve stem 22 and overflows. When the water inlet valve 4 of the water tank 12 does not stop water and continues to inlet water, the water tank 12 will overflow, and the overall gravity of the weight cylinder 27, the valve stem 22, the water stop rubber pad 24, the bottom plate 25, and the connecting part 26 is G1. The elastic body 23 is in a compressed state and generates an elastic force F1. The pressure of the water pressure on the water stop rubber pad 24 is F8. When F1>G1+F8, the first drain valve 2 is in a closed state. Excess water is discharged from the overflow channel 206 to achieve overflow.

[0073] Since the overflow channel 206 is provided on the first drain valve 2, the overflow pipe is no longer required on the second drain valve 3. When the side of the second drain valve 3 is not provided with an overflow pipe, the jet water pipe 102 is isolated from being connected to the outside air through the overflow pipe. Therefore, when the second drain valve 3 drains water, since the air pressure in the jet water pipe 102 is lower than the air pressure of the outside air, water will be stored in the jet water pipe 102 after each flushing. When the bottom of the toilet bowl 11 is flushed next time, the pre-stored water in the jet water pipe 102 can directly act on the siphon pipe 112, saving the stroke of water and greatly improving the flushing effect.

[0074] Compared with the existing water-saving toilets, the water-saving toilet of this embodiment not only shortens the water stroke, but also maintains the water pressure, thus achieving efficient transmission of water pressure and greatly enhancing the washing effect.

[0075] like Figure 15-18 The second structure of the first drain valve of this embodiment is shown. An annular water baffle plate 272 is fixedly provided inside the counterweight cylinder 27, which is sealed and connected to the drain hole 270. A water-passing gap 273 is provided on the side of the annular water baffle plate 272. An adjusting rod 28 that can rotate along the axis and is used to adjust the water-passing speed is sealed and installed inside the annular water baffle plate 272. A water-passing channel 280 is provided at the lower part of the adjusting rod 28, and a water-passing port 281 for connecting the water-passing gap 273 and the water-passing channel 280 is provided on the side wall of the adjusting rod 28. The opening area of ​​the water-passing port 281 gradually decreases along the side wall of the adjusting rod 28. The water-passing speed of the counterweight cylinder 27 can be controlled by rotating the adjusting rod 28, thereby controlling the water-passing amount of the first drain valve 2, and the water-passing amount of the first drain valve 2 can be controlled by the position height of the counterweight cylinder 27 on the valve stem 22.

[0076] like Figure 19-22The third structure of the first drain valve of this embodiment is shown. An overflow assembly for sealing the overflow channel 206 is provided at the bottom. The overflow assembly includes a guide column 71 provided at the bottom axis of the overflow channel 206, an overflow bottom plate 72 horizontally fixed at the bottom of the guide column 71, an overflow sealing rubber pad 73 installed above the overflow bottom plate 72 and used to seal the bottom of the overflow channel 206, and an overflow spring 74 sleeved on the outside of the guide column 71 and upwardly against the guide column 71. A second annular plate 75 is fixedly provided at the bottom of the overflow bottom plate 72 along the edge of the overflow channel 206, and the top of the overflow sealing rubber pad 73 is sealed with the bottom of the second annular plate 75. A connection ear 76 for the guide column 71 to pass through is provided at the center of the second annular plate 75, and the side of the connection ear 76 is fixedly connected to the inner wall of the second annular plate 75 through a plurality of connecting columns 77. A buckle 78 is fixed to the upper part of the guide column 71, and the lower part of the overflow spring 74 abuts against the lug 76, and the upper part abuts against the buckle 78. When the pressure of the water pressure on the overflow sealant 73 plus the gravity of the overflow assembly is greater than the elastic force generated by the overflow spring 74, the overflow assembly opens, and water flows into the base to achieve overflow.

[0077] Embodiment 2

[0078] like Figure 23-27 As shown, the difference between this embodiment and the first embodiment is that the scrubbing water delivery pipeline 101 is an annular water diversion groove with side openings, and the first and second rotary jet ports 105 and 106 connected to the annular water diversion groove are respectively opened on both sides of the transition water chamber 10, and the directions of the first and second rotary jet ports 105 and 106 are 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.

[0079] After opening the second drain valve 3, the water in the water tank 12 flows into the jet water pipe 102 through the second installation port 122 to flush the bottom of the toilet bowl 11. When the water level drops to a certain height, the first drain valve 2 is triggered to open, and the water in the water tank 12 flows into the transition water chamber 10 through the first installation port 121, and is finally ejected from the first rotary jet port 105 and the second rotary jet port 106. The ejected water is drained through the annular water diversion groove to clean the surrounding wall of the toilet bowl 11. The directions of the first rotary jet port 105 and the second rotary jet port 106 are the same as the flow direction of the flushing water of the annular water diversion groove. The water flushed 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.

[0080] Embodiment 3

[0081] like Figure 28-30As shown, the difference between this embodiment and the first embodiment is that the first drain valve 2 and the second drain valve 3 are both flap-type drain valves. A first hanging chain 209 for driving the first drain valve 2 to open is provided on the top of the first drain valve 2, and a second hanging chain 300 for driving the second drain valve 3 to open is provided on the top of the second drain valve 3. The tops of the first hanging chain 209 and the second hanging chain 300 are respectively connected to the connecting rod 61, and the side of the toilet body 1 is provided with a wrench 62 connected to the connecting rod 61 and used to drive the connecting rod 61 to rotate to open the first drain valve 2 and the second drain valve 3. An overflow pipe 29 connected to the transition water chamber 10 is installed on the top of the first drain valve 2. The rest of the structure of this embodiment is the same as that of the first embodiment.

[0082] In this embodiment, by pressing the opening wrench 62, the displacement of each of the two flap-type drain valves can be opened at the same time, and the water volume is reasonably distributed to the transition water chamber 10 and the jet water delivery pipe 102 of the toilet. The water in the transition water chamber 10 is finally sprayed out from a plurality of flushing holes 104 to flush the surrounding wall of the toilet bowl 11, so that the toilet can achieve the best flushing effect without wasting water. At the same time, when the first drain valve 2 is opened, the water in the water storage tank 12 is immediately poured into the transition water chamber 10, so that the air in the transition water chamber 10 and the scrubbing water delivery pipe 101 is compressed briefly, and the kinetic energy of the water flow is not released. The high water level pressure is immediately used for scrubbing, and it is not stopped until the first drain valve 2 is closed. The scrubbing is both early and long, so the scrubbing effect is greatly enhanced. The principles and effects of the rest of this embodiment are the same as those of the first embodiment.

[0083] Embodiment 4

[0084] like Figure 31-33 As shown, the difference between this embodiment and the second embodiment is that the first drain valve 2 and the second drain valve 3 are both flap-type drain valves. A first hanging chain 209 for driving the first drain valve 2 to open is provided on the top of the first drain valve 2, and a second hanging chain 300 for driving the second drain valve 3 to open is provided on the top of the second drain valve 3. The tops of the first hanging chain 209 and the second hanging chain 300 are respectively connected to the connecting rod 61, and the side of the toilet body 1 is provided with a wrench 62 connected to the connecting rod 61 and used to drive the connecting rod 61 to rotate to open the first drain valve 2 and the second drain valve 3. An overflow pipe 29 connected to the transition water chamber 10 is installed on the top of the first drain valve 2. The rest of the structure of this embodiment is the same as that of the second embodiment.

[0085] In this embodiment, by pressing the opening wrench 62, the displacement of the two flap-type drain valves can be opened at the same time, and the water volume is reasonably distributed to the transition water chamber 10 and the jet water delivery pipeline 102 of the toilet. The water in the transition water chamber 10 is finally ejected from the first rotary jet port 105 and the second rotary jet port 106. The ejected water is drained through the annular water diversion groove and then cleans the surrounding wall of the toilet bowl 11, so that the toilet can achieve the best flushing effect without wasting water. At the same time, when the first drain valve 2 is opened, the water in the water storage tank 12 is immediately poured into the transition water chamber 10, so that the air in the transition water chamber 10 and the scrubbing water delivery pipeline 101 is compressed briefly, and the kinetic energy of the water flow is not released. The high water level pressure is immediately used for scrubbing, and it is not stopped until the first drain valve 2 is closed. The scrubbing is both early and long, so the scrubbing effect is greatly enhanced. The principles and effects of the rest of this embodiment are the same as those of the second embodiment.

[0086] 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 water-saving toilet, comprising a toilet body, wherein a toilet bowl and a water storage tank are arranged on the toilet body, a sinking bend is arranged at the bottom of the toilet bowl, and a sewage siphon is connected to the sinking bend, characterized in that: A scrubbing water pipe for flushing the periphery of the toilet bowl and a jetting water pipe for flushing the bottom of the toilet bowl are provided inside the toilet bowl body, a first mounting hole and a second mounting hole are respectively provided at the bottom of the water storage tank, a first drain valve is installed in the first mounting hole, and a second drain valve is installed in the second mounting hole, the scrubbing water pipe is connected to the first mounting hole, and the jetting water pipe is connected to the second mounting hole; The first drain valve comprises a valve body, a valve stem, a bottom plate, an elastic body and a water-stopping rubber pad. A drainage cavity is provided inside the valve body, and a water inlet hole for connecting the water tank and the drainage cavity is provided on the top. The valve stem is provided on the top of the valve body, and the bottom end of the valve stem extends into the drainage cavity and can move up and down. A connecting portion is vertically fixed on the top of the bottom plate, and the connecting portion is fixedly connected to the bottom of the valve stem. An overflow channel completely penetrating the valve stem, the connecting portion and the bottom plate is provided inside the valve stem along the axis. The water-stopping rubber pad is fixedly installed on the top of the bottom plate. A first annular plate is fixedly provided on the bottom of the top plate of the valve body along the edge of the water inlet hole. The top of the water-stopping rubber pad is sealed with the bottom of the first annular plate. The elastomer is provided on the top of the valve body and is in a compressed state, and the upper end of the elastomer presses upward against the valve stem. A guide tube is sleeved on the outer side of the lower part of the valve stem, and the guide tube is fixed to the top of the water inlet hole through a plurality of support rods. A limiting step is provided on the lower part of the inner wall of the guide tube, and an annular abutment portion is provided on the outer wall of the valve stem above the limiting step. The elastic body is arranged between the outer wall of the valve stem and the inner wall of the guide tube, and the lower part of the elastic body abuts against the limiting step, and the upper part abuts against the annular abutment portion. A counterweight cylinder with an opening at the top is installed on the upper part of the valve stem, and a drain hole is provided on the bottom plate of the counterweight cylinder. A connecting pipe for the valve stem to pass through is fixedly provided at the central axis of the counterweight cylinder, and an internal thread is provided on the inner wall surface of the connecting pipe, and an external thread matching the internal thread is provided on the outer wall surface of the valve stem.

2. A water-saving toilet according to claim 1, characterized in that: The toilet body is provided with a transition water cavity below the first mounting hole, and the washing water delivery pipeline is connected with the transition water cavity.

3. A water-saving toilet according to claim 2, characterized in that: The scrubbing water supply pipeline is a ring-shaped tube with closed sides, a water inlet connected to the ring-shaped tube is provided on one side of the transition water chamber, 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 ring-shaped tube.

4. A water-saving toilet according to claim 2, characterized in that: The scrubbing water supply pipeline is an annular water diversion groove with an opening on the side, and the first and second rotary jet ports connected to the annular water diversion groove are respectively opened on both sides of the transition water chamber, and the directions of the first and second rotary jet ports are the same as the flow direction of flushing water in the annular water diversion groove.

5. A water-saving toilet according to claim 1, characterized in that: An annular water baffle plate sealed and connected with the drainage hole is fixed inside the counterweight cylinder, a water-passing gap is provided on the side of the annular water baffle plate, an adjusting rod which can rotate along the axis and is used to adjust the drainage speed is sealed and installed inside the annular water baffle plate, a drainage channel is provided at the lower part of the adjusting rod, a drainage port for connecting the water-passing gap and the drainage channel is provided on the side wall of the adjusting rod, and the opening area of ​​the drainage port gradually decreases along the side wall of the adjusting rod.

6. A water-saving toilet according to claim 1, characterized in that: The overflow channel is provided with an overflow assembly for sealing the overflow channel at the bottom, and the overflow assembly includes a guide column arranged at the bottom axis of the overflow channel, an overflow bottom plate horizontally fixed to the bottom of the guide column, an overflow sealing rubber gasket installed above the overflow bottom plate and used for sealing the bottom of the overflow channel, and an overflow spring sleeved on the outside of the guide column and pressing upward against the guide column, a second annular plate is fixedly provided at the bottom of the overflow bottom plate along the edge of the overflow channel, the top of the overflow sealing rubber gasket is sealed with the bottom of the second annular plate, an ear for the guide column to pass through is provided at the center of the second annular plate, the side of the ear is fixedly connected to the inner wall of the second annular plate by a plurality of connecting columns, a buckle is fixed to the upper part of the guide column, the lower part of the overflow spring presses against the ear, and the upper part presses against the buckle.

7. The water-saving toilet according to claim 1, characterized in that: A locking assembly for fixed connection with the bottom of the water tank is installed at the lower part of the drainage chamber, and the locking assembly includes a fixing rod, a screw and a U-shaped hook. The fixing rod is transversely fixed to the bottom of the drainage chamber, and a mounting hole for the screw to pass through is opened on the fixing rod. The U-shaped hook is arranged below the valve body and is threadedly connected to the screw.

8. The water-saving toilet according to claim 1, characterized in that: The elastic body is a metal spring or a rubber spring.

9. A water-saving toilet according to claim 3 or 4, characterized in that: The second drain valve is a cylindrical drain valve.

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