WO2020015040A1

WO2020015040A1 - Water spraying device for intelligent toilet

Info

Publication number: WO2020015040A1
Application number: PCT/CN2018/100542
Authority: WO
Inventors: 王勇; 刘厚林; 李�雨; 董亮; 王凯; 谈明高; 罗凯凯; 杨桂芳
Original assignee: 江苏大学
Priority date: 2018-07-20
Filing date: 2018-08-15
Publication date: 2020-01-23
Also published as: CN108978827B; CN108978827A

Abstract

The present invention belongs to the field of water jet cleaning devices. Provided is a water spraying device for an intelligent toilet, the device comprising a water spraying device main body and a water inlet pipe, wherein an elbow-shaped water supply circuit, a throttle pipe, an air mixing chamber, an air suction pipe A, a mixed air pulse nozzle, and an air suction pipe B are arranged inside the water spraying device main body; the water inlet pipe is in communication with one end of the elbow-shaped water supply circuit, and the other end of the elbow-shaped water supply circuit is in communication with a bottom end of the throttle pipe; the throttle pipe is a straight pipe; the air mixing chamber is located above the throttle pipe, and a top end of the throttle pipe is in communication with a bottom end of the air mixing chamber, such that an inclined jet can be produced to be injected into the air mixing chamber; a top end of the air mixing chamber is in communication with the mixed air pulse nozzle, and the air suction pipe A and the suction pipe B are respectively located on two sides of the mixed air pulse nozzle; and the elbow-shaped water supply circuit comprises an elbow-bend section A, an elbow-bend section B, a linear tapered section and an elbow-bend tapered section in communication with one another and arranged in sequence from the water inlet pipe to the air mixing chamber. The present invention can better generate mixed air pulse jets, and the same cleaning purpose is achieved using a smaller amount of water.

Description

Water spraying device for intelligent toilet

Technical field

The invention relates to the field of water jet cleaning devices, in particular to a water spray device for a smart toilet.

Background technique

At present, water jet spraying technology is widely used in cleaning, scouring and other fields. Food processing cleaning, agricultural product cleaning, kitchen utensils scouring, environmental cleaning scouring, etc. are mostly cleaned and washed with low-pressure water jets. The amount of cleaning and scouring is large, the water consumption is large, and the development of water-saving cleaning technology is of practical significance in the context of increasingly valuable water resources. This mixed-gas pulsed spray head is a cleaning technology with better cleaning effect and obvious water-saving effect under the condition of using low-pressure water jet.

After searching, Chinese Patent Publication No .: CN102989613A, named Self-Excited Pulsed Aeration Sprinkler, provides a self-excited pulsed aeration nozzle, which is characterized by the use of a self-excited oscillation pulse mechanism, with good pulse effect and inspiratory effect. The invention cleans The water flows straight in and out, and has good symmetry. It can make full use of the self-excited oscillation pulse mechanism, but it is not suitable for toilets.

Summary of the invention

In view of the shortcomings in the prior art, the present invention provides a water spray device for a smart toilet, which can generate a mixed gas pulse jet well and use a small amount of water to achieve the same cleaning purpose.

The present invention achieves the above technical objectives through the following technical means.

A water spraying device for a smart toilet includes a water spraying device main body and a water inlet pipe, and the water spraying device main body is provided with an elbow-shaped water supply channel, a throttle pipe, a gas mixing chamber, a suction pipe A, and gas mixing pulsation. Nozzle, suction pipe B;

The water inlet pipe is in communication with one end of an elbow-shaped water supply path, the main body of the water spray device can move along the axis of the water inlet pipe, and the other end of the elbow-shaped water supply pipe is in communication with the bottom end of the throttle pipe, and the throttle pipe is straight The mixing chamber is located above the throttle tube, and the top end of the throttle tube is in communication with the bottom end of the mixing chamber. After entering the cleaning water from the bottom end of the throttle tube, an inclined upward jet can be injected into the mixing tube. In the gas chamber, the top end of the gas mixing chamber is in communication with the gas mixing pulsation nozzle, and the gas mixing pulsation nozzle includes an upper nozzle and a lower nozzle which are arranged in communication, and a communicating portion of the upper nozzle and the lower nozzle is provided with a tapered section. Make the diameter of the lower nozzle smaller than the diameter of the upper nozzle;

The air suction pipe A and the air suction pipe B are respectively located on two sides of the air mixing pulse nozzle, and the air suction pipe A and the air suction pipe B are in communication with the air mixing chamber.

Preferably, the elbow-shaped water supply path includes an elbow section A, an elbow section B, a linearly tapered section, and an elbow tapered section, which are sequentially arranged in a direction from the water inlet pipe to the mixing chamber, and the elbow section B. The linear tapered section and the elbow tapered section form an elbow-shaped flow channel. The elbow section A is arranged vertically. The side of the elbow section A opposite to the outlet of the water inlet pipe is a smooth curved surface. The tapered section gradually decreases in cross-section along the direction from the elbow section B to the elbow tapered section. The air mixing chamber is located above the elbow tapered section, and the elbow tapered section moves from the linear tapered section. The end is inclined to extend toward the bottom of the mixing chamber.

Preferably, the upper surface of the linear tapered section is an inclined surface, which is inclined downward in the direction from the elbow section B to the elbow tapered section, and the angle between the upper surface of the linear tapered section and the horizontal line is 13 ° ～ 18 °, the lower surface of the linear tapered section is a horizontal plane.

Preferably, a guide block for changing the flow rate of the washing water is provided in the elbow-shaped water supply path, and the guide block is placed on the bottom surface of the linear tapered section, and the top surface of the guide block includes the elbow section B along the elbow. The semi-ellipsoidal surface, linear tapered surface, and fluid curved surface connected in sequence to the elbow tapered section are inclined in a direction from the semi-ellipsoidal surface to the fluid curved surface, and the linear tapered surface and The upper surfaces of the linear tapered segments are parallel.

Preferably, the air-mixing chamber has oppositely arranged top and bottom surfaces, left and right sides, and front and rear sides, the air-mixing chamber is inclined from left to right, and the bottom is a circular arc surface. And the bottom surface is connected to the left and right sides with a smooth arc, the center of the bottom surface is located at the lowest point of the mixing chamber, the throttle is connected to the center of the bottom surface, and the left and right sides are connected. The surfaces are inclined to the outside of the mixing chamber, and both ends of the top surface are provided with slopes, so that the left and right sides respectively form sharp angles with the two slopes; the center line of the mixing chamber and the throttle tube The central axis is on a straight line, the suction pipe A is connected to the inclined surface at the left end of the top surface, and the suction pipe B is connected to the inclined surface at the right end of the top surface.

Preferably, the length L of the mixing chamber is 7 to 10 times the diameter of the throttle tube, the width D is 4 to 7 times the diameter of the throttle tube, and the height H is 3 to 5 times the diameter of the throttle tube. The included angles between the inclined surfaces at the two ends of the top surface of the mixing chamber and the left and right sides are 45 ° to 60 °, respectively.

Preferably, the length L of the mixing chamber is 9 times the diameter of the throttle tube, the width D is 4 times the diameter of the throttle tube, and the height H is 4 times the diameter of the throttle tube.

Preferably, the central axis of the lower nozzle coincides with the central axis of the throttle tube, and the central axis of the upper nozzle does not coincide with the central axis of the lower nozzle.

Preferably, the diameter of the upper nozzle is 1.4 times the diameter of the lower nozzle, the diameter of the lower nozzle is 1.2 times the diameter of the throttle pipe, and the diameters of the suction pipe A and the suction pipe B are both It is 1 times the diameter of the throttle.

Preferably, the diameters of the suction pipe A and the suction pipe B are the same as the diameter of the throttle pipe, the suction pipe A is perpendicular to the left end inclined surface of the top surface of the mixing chamber, and the suction pipe B is mixed with the gas mixture. The right end bevel of the top surface of the chamber is vertical.

The beneficial effects of the present invention:

1) The throttle pipe in the present invention connects the elbow-shaped water supply channel and the mixing chamber obliquely and upwardly, which can generate inclined jets, prevent falling foreign matter from blocking the water outlet and the suction hole on the upper cover, and the washing water from the throttling The tube flows out, and most of them directly enter the mixed gas pulsation nozzle. A small part of the cleaning water A and the cleaning water B return to the mixing chamber along the wall of the mixing chamber, and are sucked in by the negative pressure through the suction pipe A and the suction pipe B. After the air is fully mixed, it enters the air-mixing pulse nozzle with the jet. In this way, the air-mixing volume will be different in the cleaning water jet. The part with more air-mixing volume has a higher jet velocity, and the part with less air-mixing volume has a lower jet speed. A pulsating jet will be generated, using a small amount of water to achieve the same cleaning effect, while reducing the amount of electricity required to heat the water.

2) In the present invention, an elbow-shaped water supply path is provided in the main body of the water spray. The left end of the elbow-shaped water supply path is provided with two elbow sections, and the lower end is a single-sided cone, which can adjust the flow state of the washing water and make the washing water more concentrated. It can reduce the diffusion of the cleaning water in the gas mixing chamber, so that the diameter of the lower nozzle of the gas mixing pulse nozzle can be reduced, and a higher flow rate of the cleaning water can be ensured, which is conducive to improving the cleaning intensity.

3) The mixing chamber in the present invention is symmetrical about its centerline, which prevents jet deflection caused by different negative pressures on the left and right sides, and the right end of the bottom of the mixing chamber is higher than the outlet of the throttle tube to prevent water accumulation in the mixing chamber from breeding bacteria and ensuring The washing water B is better merged with the washing water, and the upper side of the mixing chamber is provided with sharp corners to prevent the washing water from entering and blocking the suction pipe and even flowing out of the suction pipe.

4) According to the present invention, the central axis of the upper nozzle and the central axis of the lower nozzle do not coincide, so that the cleaning water C enters the upper nozzle from the lower nozzle, and a Coanda effect occurs, which causes a left-right swing and increases the cleaning area.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a water spray device for a smart toilet according to the present invention.

FIG. 2 is a top view of a water spray device for a smart toilet according to the present invention.

FIG. 3 is a schematic diagram of a gas mixing process in a gas mixing chamber according to the present invention.

FIG. 4 is a schematic structural diagram of an elbow-shaped water supply channel according to the present invention.

FIG. 5 is a schematic structural diagram of a gas-mixed pulsating nozzle according to the present invention.

FIG. 6 is a jet experiment diagram according to an embodiment of the present invention.

1-hollow shaft, 2-water inlet pipe, 3-base, 4-elbow water supply channel, 4-4-1 elbow section A, 4-2-elbow section B, 4-3-linear tapered section, 4 -4-Elbow tapered section, 5-chassis, 6-flow guide block, 7-throttle, 8-mixing chamber, 9-suction tube A, 10-mixing pulsating nozzle, 10-1-down Nozzle, 10-2-upper nozzle, 11-suction pipe B, 12-upper cover, 13-wash water, 13-1 wash water A, 13-2 wash water B, 13-3 wash water C.

detailed description

The present invention is further described below with reference to the drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

As shown in FIGS. 1 and 2, a water spray device for a smart toilet according to the present invention includes a water spray device main body and a water inlet pipe 2. The water spray device main body includes a base 3, a chassis 5, and an upper cover 18. The base 3 is provided with an elbow-shaped water supply channel 4 and a throttle pipe 7, the chassis 5 is welded to the bottom end of the base 3 by laser welding, and the upper cover 12 is welded to the top surface of the base 3 by laser welding. There is also a mixing chamber 8 in the main body. The lower part of the mixing chamber 8 is located in the base 3, and the upper part is located in the upper cover 12. The upper cover 12 is provided with an air suction pipe A9, a gas mixing pulsation nozzle 10, and an air suction. Tube B11.

The base 3 is sleeved on the hollow shaft 1 and can be moved left and right. The water inlet pipe 2 is a plastic hose with a diameter of 2 mm. The water inlet pipe 2 is placed in the hollow shaft 1. The water inlet pipe 2 and the end of the elbow-shaped water supply channel 4 are connected by gum. The other end of the elbow-shaped water supply pipe 4 communicates with the bottom end of the throttle pipe 7, the throttle pipe 7 is a straight pipe, the mixing chamber 8 is located above the throttle pipe 7, the top of the throttle pipe 7 and the mixing chamber 8 The bottom end is connected. The throttle pipe 7 is inclined upward with respect to the horizontal plane. The cleaning water 13 can pass through the throttle pipe 7 to generate an inclined upward jet into the mixing chamber 8. As shown in FIG. 4, the elbow-shaped water supply channel 4 includes Elbow section A4-1, elbow section B4-2, linear tapered section 4-3, elbow tapered section 4-4, and elbow section B4- 2. The linear tapered section 4-3 and the elbow tapered section 4-4 form an elbow-shaped flow channel. The side of the elbow section A4-1 opposite the outlet of the inlet pipe 2 is a smooth curved surface, and the elbow section A4 -1 and elbow section B4-2 can prevent the washing water 13 from generating eddy currents in the elbow feed channel 4. The linear tapered section 4-3 is in the direction from the elbow section B4-2 to the elbow tapered section 4-4. The cross section gradually decreases, which can regulate water The flow pattern makes the cleaning water 13 more concentrated, and it can also form an oblique upward throttle pipe 7. The mixing chamber 8 is located above the elbow tapered section 4-4, and the elbow tapered section 4-4 is tapered from linear. The end of section 4-3 extends obliquely toward the bottom of the mixing chamber 8, and the elbow tapers. The section 4-4 further optimizes the water shape, reduces the generation of floc, and reduces the diffusion of the washing water 13 in the mixing chamber 8, thereby reducing The diameter of the lower nozzle 10-1 of the air-mix pulse nozzle 10 ensures that the washing water 13 generates a higher flow rate, which is beneficial to improving the cleaning intensity.

As shown in FIG. 4, the upper surface of the linear tapered section 4-3 is an inclined surface, and is inclined downward in the direction from the elbow section B4-2 to the elbow tapered section 4-4, and the linear tapered section 4-3 The angle between the upper surface of the surface and the horizontal line is 13 ° -18 °, and the lower surface of the linear tapered section 4-3 is the upper surface of the chassis 5.

As shown in FIG. 4, an elbow-shaped water supply channel 4 is provided with a guide block 6 for changing the flow rate of the washing water. The guide block 6 is placed on the bottom surface of the linear tapered section 4-3. The top surface of the guide block 6 includes A semi-elliptical surface 601, a linear tapered surface 602, and a fluid curved surface 603, which are sequentially connected in the direction from the elbow section B4-2 to the elbow tapered section 4-4. The linear tapered surface 602 follows the semi-elliptical surface 601 to the fluid. The direction of the curved surface 603 is inclined downward, and the linear tapered surface 602 is parallel to the upper surface of the linear tapered section 4-3.

As shown in FIG. 3, the mixing chamber 8 has oppositely arranged top and bottom surfaces, left and right sides, and front and rear sides. The mixing chamber 8 is inclined from the left to the right and the bottom is arc-shaped. And the bottom surface is connected to the left and right sides with a smooth arc, the center of the bottom surface is located at the lowest point of the mixing chamber 8, and the throttle 7 is connected to the center of the bottom surface, so that the right half of the bottom surface of the mixing chamber 8 The bottommost point is higher than the center of the bottom surface, and both the left side and the right side are inclined toward the outside of the gas mixing chamber 8.

The top of the mixing chamber 8 is in communication with the mixing pulsation nozzle 10, and the suction pipe A9 and the suction pipe B11 are respectively located on both sides of the mixing pulsation nozzle 10, and both ends of the mixing chamber 8 are provided with inclined surfaces so that the left side surface The right and right sides respectively form sharp angles with the two inclined planes, both 45 ° to 60 °, which is 50 ° in this embodiment. The suction pipe B11 is perpendicular to the right end slope of the top surface of the mixing chamber 8 and the suction pipe A9. And the suction pipe B11 communicate with the air-mixing chamber 8 through two inclined surfaces, respectively. The center line of the gas mixing chamber 8 and the center axis of the throttle pipe 7 are on a straight line. The mixing chamber 8 is symmetrical about its centerline to prevent jet deflection caused by different negative pressures on both sides. The lowest right end of the bottom of the mixing chamber 8 is higher than the outlet of the throttle pipe 7 to prevent water accumulation in the mixing chamber 8 from breeding bacteria and To ensure that the cleaning water B13-2 merges with the cleaning water 13 and flows out, the sharp corners on the top ends of the mixing chamber 8 are set to prevent the cleaning water A13-1 and the cleaning water B13-2 from entering and blocking the suction pipe A and suction. The air pipe B even wash water 13A, B flows out of the air pipe A9 and the air pipe B11. Most of the washing water 13 coming out of the throttle pipe 7 directly enters the mixed gas pulsating nozzle 10, and the washing water 13 is divided into three parts at the top of the mixing chamber 8, and most of the washing water C13-3 enters the lower nozzle directly. 10-1, a small part is washing water A13-1, washing water B13-2, washing water A13-1, washing water B13-2 respectively return to the mixing chamber 8 along the inner wall of the mixing chamber 8, and are connected with the negative The air sucked through the suction pipe A9 and the suction pipe B11 is fully mixed, and then enters the air mixing pulse nozzle 10 with the jet. In this way, the mixed air volume in the cleaning water C13-3 jet will be different. Part of the jet velocity is large, and the part of the mixed gas stream with a low velocity will generate a pulsating jet, using a small amount of water to achieve the same cleaning effect, while reducing the amount of electricity required to heat the water.

The length L of the mixing chamber 8 is 7 to 10 times the diameter of the throttle 7, the width D is 4 to 7 times the diameter of the throttle 7, and the height H is 3 to 5 times the diameter of the throttle 7. The length L of the chamber 8 is 9 times the diameter of the throttle 7, the width D is 4 times the diameter of the throttle 7, and the height H is 4 times the diameter of the throttle 7.

As shown in FIGS. 1 and 5, the air-mix pulsation nozzle 10 includes an upper nozzle 10-2 and a lower nozzle 10-1 which are arranged in communication, and a communicating portion of the upper nozzle 10-2 and the lower nozzle 10-1 is provided with a tapered section, so that The diameter of the lower nozzle 10-1 is made smaller than the diameter of the upper nozzle 10-2. The diameter of the upper nozzle 10-2 is 1.4 times the diameter of the lower nozzle 10-1, and the diameter of the lower nozzle 10-1 is 1.2 times the diameter of the throttle pipe 7.

The diameters of the suction pipe A9 and the suction pipe B11 are both double the diameter of the throttle pipe 7. As shown in FIG. 1, the central axis of the lower nozzle 10-1 and the central axis of the throttle pipe 7 coincide, and the central axis of the upper nozzle 10-2 and the central axis of the lower nozzle 10-1 do not coincide. When the washing water C13-3 enters the upper nozzle 10-2 from the lower nozzle 10-1, because the lower nozzle 10-1 and the upper nozzle 10-2 have different axes, the washing water C13-3 is not in the center position, and a Coanda effect occurs. , Make the washing water shake left and right, increase the cleaning area.

Working principle of the invention:

The wash water 13 flows from the water inlet pipe 2 into the elbow-shaped water supply channel 4. The elbow section A4-1 and the elbow section B4-2 can adjust the flow state of the wash water 13, and the linear tapered section 4-3 can make the wash water 13 more Concentrated to prevent the large diffusion of the washing water 13 in the mixing chamber, and the guide block 6 can prevent the inside velocity of the 4-4 at the elbow tapered section from being higher than the outside velocity, and the water shape becomes more concentrated, which can reduce the mixing The diameter of the lower nozzle 10-1 of the pulsating nozzle 10 increases the flow rate, and the throttle pipe 7 connected to the elbow tapered section 4-4 can not only further generate higher speeds, but also generate inclined jets to prevent cleaning foreign objects The drop blocks the water outlet corresponding to the gas pulsation nozzle 10 on the upper cover 12 and the suction holes corresponding to the suction pipes A9 and B11. In the mixing chamber 8, the washing water A13-1 and the washing water B13-2 are respectively returned to the mixing chamber 8 along the inner wall of the mixing chamber 8, mixed with the air sucked in by the negative pressure, and then mixed with the cleaning water C13- 3 into the upmixed gas pulsating nozzle 10, part of the water in the air is mixed more, the density is lower, and the speed is higher, and the other part of the water is mixed less, the density is higher, the speed is lower, and the rapid and slow and orderly jet water is generated, reaching With the pulse effect, when the cleaning water C13-3 enters the upper nozzle 10-2 from the lower nozzle 10-1, the cleaning water C13-3 is not in the center position, which causes the wall effect, which causes the cleaning water C13-3 to shake around, such as As shown in Figure 6, increase the cleaning area.

The embodiments are the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious improvement, replacement or modification that can be made by those skilled in the art without departing from the essence of the present invention are It belongs to the protection scope of the present invention.

Claims

A water spraying device for a smart toilet includes a water spraying device main body and a water inlet pipe (2), characterized in that the water spraying device main body is provided with an elbow-shaped water supply channel (4) and a throttle pipe (7) Mixing chamber (8), suction pipe A (9), mixing pulse pump (10), suction pipe B (11);

The water inlet pipe (2) is in communication with one end of an elbow-shaped water supply channel (4), the main body of the water spray device can move along the axis of the water inlet pipe (2), and the other end of the elbow-shaped water supply tube (4) is connected to a node The bottom end of the flow tube (7) communicates, the throttle tube (7) is a straight tube, the gas mixing chamber (8) is located above the throttle tube (7), and the top of the throttle tube (7) It communicates with the bottom end of the mixing chamber (8). After entering the bottom end of the throttle pipe (7), the washing water (13) can generate a slanting upward jet into the mixing chamber (8). The top end of (8) is in communication with a gas-mixing pulsating nozzle (10), and the gas-mixing pulsating nozzle (10) includes an upper nozzle (10-2) and a lower nozzle (10-1) arranged in communication, and the upper nozzle (10) -2) the communicating part with the lower nozzle (10-1) is provided with a tapered section so that the diameter of the lower nozzle (10-1) is smaller than the diameter of the upper nozzle (10-2);

The suction pipe A (9) and the suction pipe B (11) are respectively located on both sides of the gas mixing pulsation nozzle (10), and the suction pipe A (9) and the suction pipe B (11) are both The gas mixing chamber (8) communicates.
The water spraying device for a smart toilet according to claim 1, characterized in that the elbow-shaped water supply path (4) comprises sequentially arranged in a direction from the water inlet pipe (2) to the gas mixing chamber (8). Elbow segment A (4-1), elbow segment B (4-2), linear tapered segment (4-3) and elbow tapered segment (4-4), said elbow segment B (4- 2) The linear tapered section (4-3) and the elbow tapered section (4-4) form an elbow-shaped flow channel, the elbow section A (4-1) is vertically arranged, and the elbow section A (4) -1) The side opposite to the outlet of the water inlet pipe (2) is a smooth curved surface, and the linear tapered section (4-3) extends from the elbow section B (4-2) to the elbow tapered section ( The direction cross section of 4-4) gradually decreases, and the air mixing chamber (8) is located above the elbow tapered section (4-4), and the elbow tapered section (4-4) is tapered from linearly The end of the segment (4-3) extends obliquely toward the bottom of the mixing chamber (8).
The water spraying device for a smart toilet according to claim 2, characterized in that the upper surface of the linear tapered section (4-3) is an inclined surface, from the elbow section B (4-2) to The direction of the elbow tapered section (4-4) is inclined downward, and the angle between the upper surface of the linear tapered section (4-3) and the horizontal line is 13 ° to 18 °, and the linear tapered section (4-3) The lower surface of) is a horizontal plane.
The water spraying device for a smart toilet according to claim 2, characterized in that the elbow-shaped water supply path (4) is provided with a guide block (6) for changing the flow velocity of the washing water, and the guide block (6) It is placed on the bottom surface of the linear tapered section (4-3), and the top surface of the guide block (6) includes the section from the elbow section B (4-2) to the elbow tapered section (4-4). The semi-elliptical surface (601), the linear tapered surface (602), and the fluid curved surface (603) are sequentially connected in a direction along the direction from the semi-elliptical surface (601) to the fluid curved surface (603). The direction is inclined downward, and the linear tapered surface (602) is parallel to the upper surface of the linear tapered section (4-3).
The water spray device for a smart toilet according to claim 1, characterized in that the air mixing chamber (8) has a top surface and a bottom surface, a left side and a right side, and a front side and a rear side that are oppositely disposed. The air-mixing chamber (8) is inclined from the left to the right and the bottom is arc-shaped, and the bottom surface and the left and right sides are connected by arc smooth surfaces, and the center of the bottom surface is located in the air-mixing chamber. The lowest point of the chamber (8), the throttle tube (7) is connected to the center of the bottom surface, the left and right sides are inclined toward the outside of the mixing chamber (8), and both ends of the top surface are provided There are slopes so that the left side and the right side respectively form sharp angles with the two slopes; the center line of the mixing chamber (8) and the center axis of the throttle pipe (7) are on a straight line, and the suction The pipe A (9) is connected to the inclined surface at the left end of the top surface, and the suction pipe B (11) is connected to the inclined surface at the right end of the top surface.
The water spraying device for a smart toilet according to claim 5, characterized in that the length L of the mixing chamber (8) is 7 to 10 times the diameter of the throttle pipe (7), and the width D is the throttle The diameter of the tube (7) is 4 to 7 times, and the height H is 3 to 5 times the diameter of the throttle tube (7). The slopes at the two ends of the top surface of the mixing chamber (8) are formed on the left and right sides, respectively. The included angles are 45 ° ~ 60 °.
The water spray device for a smart toilet according to claim 6, characterized in that the length L of the mixing chamber (8) is 9 times the diameter of the throttle pipe (7), and the width D is the throttle pipe ( 7) 4 times the diameter, and the height H is 4 times the diameter of the throttle tube (7).
The water spraying device for a smart toilet according to claim 1, wherein the central axis of the lower nozzle (10-1) and the central axis of the throttle pipe (7) coincide, and the upper nozzle (10) -2) The center axis of the nozzle does not coincide with the center axis of the lower nozzle (10-1).
The water spray device for a smart toilet according to claim 1, characterized in that the diameter of the upper nozzle (10-2) is 1.4 times the diameter of the lower nozzle (10-1), and the lower nozzle (10-1) The diameter of 10-1) is 1.2 times the diameter of the throttle pipe (7), and the diameters of the suction pipe A (9) and the suction pipe B (11) are both the diameter of the throttle pipe (7) 1 times.
The water spray device for a smart toilet according to claim 1, wherein the diameters of the suction pipe A (9) and the suction pipe B (11) are the same as the diameter of the throttle pipe (7) The suction pipe A (9) is perpendicular to the left end inclined surface of the top surface of the mixing chamber (8), and the suction pipe B (11) is perpendicular to the right end inclined surface of the top surface of the mixing chamber (8).