Spray gun nozzle, spray gun and intelligent closestool

Abstract

The spray gun nozzle comprises a shell and a turbine, the shell comprises a first water inlet channel, a first water passing cavity and a first water outlet hole, the first water passing cavity is communicated with the first water outlet hole, the turbine is rotatably arranged in the first water passing cavity, the first water inlet channel is communicated with the first water passing cavity through a first water passing opening, and the turbine is rotatably arranged in the first water passing cavity at the first water passing opening. A first groove is formed in the bottom wall of the first water inlet channel, the curvature of the side wall of the first groove is K1, K1 is gradually reduced in the rotating direction of the turbine, the range of K1 is 0.008-4.4, water flow entering the first water passing cavity is guided through the groove, the water flow impacts the blades on the front face, kinetic energy of the water flow is converted into kinetic energy of the turbine to the maximum extent, and the kinetic energy of the turbine is converted into the kinetic energy of the turbine to the maximum extent. The water flow in the first water passing cavity can be better driven to rotate and be pressurized, the water flow forms particle water under water pressure and rotating force, a pump and other mechanisms do not need to pressurize the water flow to ensure that the water flow rotates in the first water passing cavity, and therefore the structure of the spray gun can be more simplified, and electric energy does not need to be consumed.

Description

Technical Field

[0001] The invention relates to the field of intelligent toilets, and in particular to a spray gun nozzle, a spray gun and an intelligent toilet. Background Art

[0002] To meet the cleaning needs of users, smart toilet products are usually equipped with a spray gun to output water for users to clean. Existing spray gun nozzles can output different water types, such as granular water. The formation of granular water requires the water flow to maintain a large kinetic energy to enter the nozzle to form a vortex. In some existing technologies, mechanisms such as pumps are usually required to pressurize the water flow. Therefore, the structural design of the spray gun is more complicated and also requires electrical energy. Summary of the invention

[0003] The present invention provides a spray gun nozzle, a spray gun and an intelligent toilet, aiming to solve the technical problems of complex structure and power consumption in forming granular water in the spray gun in the prior art.

[0004] To achieve the above object, a first aspect of the present invention provides a spray gun nozzle, comprising: A housing, the housing comprising a first water inlet channel, a first water passage cavity and a first water outlet hole, the first water passage cavity and the first water outlet hole being in communication; A turbine, rotatably disposed in the first water passage chamber; The first water inlet channel and the first water passage chamber are connected through a first water passage, and a first groove is provided on the bottom wall of the first water inlet channel at the first water passage, and the curvature of the side wall of the first groove is K1, and K1 gradually decreases along the rotation direction of the turbine, wherein the range of K1 is 0.008-4.4.

[0005] According to the spray gun nozzle provided by the first aspect of the embodiment of the present invention, the water flow entering the first water passage chamber is guided by the groove and its side wall surface, so that the guided water flow can directly impact the blades of the turbine, and the kinetic energy of the water flow can be converted into the kinetic energy of the turbine rotation to the maximum extent, so that the turbine can better drive the water flow in the first water passage chamber to rotate and pressurize it, so that the water flow forms granular water under the action of water pressure and rotational force, and there is no need to pressurize the water flow by a pump or other mechanism before the water flow enters the first water passage chamber to ensure that the water flow can rotate in the first water passage chamber and be thrown into granular water, thereby making the structure of the spray gun simpler and without consuming electric energy.

[0006] According to some embodiments of the present invention, a second groove and a third groove are further included, wherein the first groove, the second groove and the third groove are arranged in sequence along the rotation direction of the turbine, and the water flow cross-sectional area gradually decreases.

[0007] According to some embodiments of the present invention, along the rotation direction of the turbine, the curvature K2 of the second groove and the curvature K3 of the third groove gradually decrease along the rotation direction of the turbine, wherein the range of K2 is 0.06-5.1, and the range of K3 is 0.57-10.74.

[0008] According to some embodiments of the present invention, the housing further comprises a second water inlet channel; The turbine comprises blades and a rotating shaft. A second water passage chamber is arranged on the rotating shaft. One end of the second water passage chamber is communicated with the second water inlet channel, and the other end of the second water passage chamber is communicated with the first water outlet hole.

[0009] According to some embodiments of the present invention, the shell further includes a third water inlet channel, a third water passage chamber, a second water outlet hole, an air suction chamber and a third water outlet hole which are connected in sequence, wherein a guide column is provided on the third water passage chamber, an air suction port is provided on the air suction chamber, the second water outlet hole is provided in the air suction chamber, and the second water outlet hole and the third water outlet hole are provided correspondingly.

[0010] According to some embodiments of the present invention, the housing comprises: An upper cover, wherein the upper cover is provided with a first water outlet and a third water outlet; A main body, the second water outlet hole is arranged on the main body, and the upper cover is arranged on a side of the main body where the second water outlet hole is arranged, so as to enclose the air suction cavity; The bottom cover is arranged on a side of the main body away from the upper cover, and the bottom cover and the main body enclose the first water inlet channel, the second water inlet channel, the third water inlet channel, the first water passage cavity and the third water passage cavity.

[0011] According to some embodiments of the present invention, a notch is provided on at least one side of the upper cover, and the upper cover and the main body form an air inlet for gas to enter the air inlet cavity.

[0012] According to some embodiments of the present invention, an air guide channel is provided on the main body, and the air guide channel is communicated with the air inlet.

[0013] A second aspect of the present invention provides a spray gun, including: the above-mentioned spray gun nozzle.

[0014] A third aspect of the present invention provides a spray gun, comprising: the above-mentioned spray gun nozzle or spray gun.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 An overall schematic diagram of a spray gun provided by an embodiment of the present invention is shown; Figure 2 The overall schematic diagram of the spray gun nozzle provided by the embodiment of the present invention is shown; Figure 3 The exploded schematic diagram of the spray gun nozzle provided by the embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of a spray gun nozzle provided by an embodiment of the present invention is shown; Figure 5 Another schematic structural diagram of a spray gun nozzle provided by an embodiment of the present invention is shown; Figure 6 Another schematic structural diagram of a spray gun nozzle provided by an embodiment of the present invention is shown; Figure 7 A schematic diagram of the structure of a bottom cover provided by an embodiment of the present invention is shown; Figure 8 A schematic diagram showing the structure of the main body provided by an embodiment of the present invention is shown; Reference numerals: 100. Spray gun nozzle; 110, upper cover; 111, first water outlet; 112, third water outlet; 113, air inlet; 120, main body; 121, first water inlet channel; 1211, first water inlet trough; 122, second water inlet channel; 1221, second water inlet trough; 123, third water inlet channel; 1231, third water inlet trough; 124, first water passage cavity; 1241, first water passage trough; 125, first water passage port; 126, third water passage cavity; 1261, second water passage trough; 127, air guide channel; 128, second water outlet; 129, air suction cavity; 130, bottom cover; 131, first groove; 132, second groove; 133, third groove; 134, guide column; 135, water passage; 1351, passage inlet; 1332, passage outlet; 136, circular groove; 140. Turbine; 141. Second water chamber. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] refer to Figure 1 and Figure 2 In some specific embodiments of the present invention, a spray gun nozzle 100 is provided for use on a smart toilet spray gun. When a user needs to perform hip washing or feminine washing, water can pass through the spray gun body and then be sprayed out through the spray gun nozzle 100 to meet the user's usage needs.

[0019] refer to Figure 2-7 In some specific embodiments of the present invention, the spray gun nozzle 100 includes a shell and a turbine 140, wherein the shell can be integrally formed or assembled from a plurality of different parts. The shell is provided with a first water inlet channel 121, a first water passage chamber 124 and a first water outlet hole 111 which are connected in sequence. When the spray gun function is used, water can flow into the first water passage chamber 124 through the first water inlet channel 121 and be sprayed out from the first water outlet hole 111. The turbine 140 is composed of blades and a rotating shaft, which is arranged in the first water passage chamber 124 and can rotate around the rotating shaft in the first water passage chamber 124. Specifically, when the water flows into the first water passage chamber 124, it will impact the blades of the turbine 140 to make it rotate. The first water inlet channel 121 and the first water passage chamber 124 are connected through the first water passage 125. A first groove 131 is provided on the bottom wall of the first water inlet channel 121. The curvature of the side wall of the first groove 131 is K1, and K1 gradually decreases along the rotation direction of the turbine 140, wherein the range of K1 is 0.008-4.4. Therefore, when water flows from the first water inlet channel 121 through the first groove 131 and enters the first water passage chamber 124, the water flow close to the first groove 131 will form a vortex through the guidance of the side wall of the first groove 131, and the water flow after forming the vortex will impact the blades of the turbine 140 along the side wall, thereby increasing the impact force. The turbine 140 stirs the water flow and pressurizes the water flow during the rotation process, and strengthens the vortex state of the water flow in the entire first water passage chamber 124, so that the water flow is thrown out from the first water outlet 111 under the action of water pressure and rotational force and forms a granular water outlet effect. Compared with ordinary water column water outlet, the granular water is softer, the impact force is not obvious, and the flushing experience is better.

[0020] According to the embodiment provided by the present invention, the water flow entering the first water passage chamber 124 is guided by the first groove 131 and its side wall surface, so that the water flow flowing out from the side wall surface can directly impact the blades of the turbine 140, and the kinetic energy of the water flow can be converted into the kinetic energy of the rotation of the turbine 140 to the maximum extent, so that the turbine 140 can better drive the water flow in the first water passage chamber 124 to rotate and pressurize it, so that the water flow forms granular water under the action of water pressure and rotational force, and there is no need to pressurize the water flow by setting a pump or other mechanism before the water flow enters the first water passage chamber 124 to ensure that the water flow can rotate in the first water passage chamber 124 and be thrown into granular water, thereby making the structure of the spray gun simpler and without consuming electric energy.

[0021] refer to Figure 3 and Figure 7 In some embodiments of the present invention, a plurality of grooves may be provided, for example, a second groove 132 and a third groove 133 are further provided, and the three grooves are arranged in sequence along the rotation direction of the turbine 140, and the side wall surface of each groove is arranged along the rotation direction of the turbine 140. The number of grooves may also be 4, 5, etc., and the specific number is not specifically limited in this application. Thus, the water flow passing through the first water outlet 125 may be guided by the side wall surfaces of the plurality of grooves, and a plurality of fluids that impact the turbine 140 positively are formed and impact the turbine 140 to rotate.

[0022] In some embodiments of the present invention, the grooves may be arranged in various ways. For example, two adjacent grooves may be closely connected, or a spacer may be provided between the two adjacent grooves so that the two adjacent grooves are arranged at intervals.

[0023] refer to Figure 7 In some embodiments of the present invention, along the rotation direction of the turbine 140, the water flow cross-sectional areas of the first groove 131, the second groove 132 and the third groove 133 gradually decrease. It can be understood that the smaller the water flow cross-sectional area of ​​the groove, the smaller the length of the side wall surface. Therefore, the kinetic energy loss of water when flowing through the side wall surface is smaller and the impact force is greater. Therefore, in the rotation direction of the turbine 140, the kinetic energy of the water flow impacting the blades becomes larger and larger, so that the turbine 140 produces a gradual acceleration effect during the rotation process.

[0024] In some specific embodiments of the present invention, the curvature K2 of the second groove 132 and the curvature K3 of the third groove 133 are gradually reduced along the rotation direction of the turbine, wherein the range of K2 is 0.06-5.1, and the range of K3 is 0.57-10.74. Thus, it can be ensured that the water flow guided out of the second groove 132 and the third groove 133 can directly impact the blades of the turbine 140, and the kinetic energy of the water flow can be maximally converted into the kinetic energy of the rotation of the turbine 140. refer to Figure 4 and Figure 5In some embodiments of the present invention, a second water inlet channel 122 is further provided on the housing. The rotating shaft of the turbine 140 is set as a hollow structure, and the hollow structure of the turbine 140 is a second water passage chamber 141 through which water can flow. One end of the second water passage chamber 141 is connected to the second water inlet channel 122, and the other end is connected to the first water outlet hole 111, so that the water can enter the second water passage chamber 141 from the second water inlet channel 122 and then flow out from the first water outlet hole 111. Therefore, the water can flow from the second water inlet channel 122 into the second water passage chamber 141 in the rotating shaft of the turbine 140. Since the water is not specially treated during this flow process, the water sprayed from the first water outlet hole 111 is ordinary columnar water, which can be used by users for regular butt washing or other cleaning operations.

[0025] According to the spray gun nozzle 100 provided in the embodiment of the present invention, no matter the user chooses the first water inlet channel 121 to output granular water or the second water inlet channel 122 to output ordinary columnar water, both can be output through the same water outlet hole, and the shaft structure of the turbine 140 is flexibly utilized, and the shaft is set to a hollow structure as the second water passage chamber 141. Therefore, the spray gun nozzle 100 does not need to separately set a water outlet hole and a water passage chamber, and the spray gun nozzle head 100 can be miniaturized, making its structure more compact, making the volume occupied by the spray gun nozzle head 100 in the smart toilet smaller, and more convenient to install.

[0026] refer to Figure 3-5 In some embodiments of the present invention, the shell further includes a third water inlet channel 123, a third water passage chamber 126, a second water outlet hole 128, an air suction chamber 129 and a third water outlet hole 112 which are connected in sequence. Specifically, a guide column 134 is provided in the third water passage chamber 126. After the water flow enters the third water passage chamber 126, the water flow becomes more uniform due to the rectifying effect of the guide column 134. In addition, the second water outlet 128 is exposed in the air suction chamber 129, and the second water outlet 128 and the third water outlet 112 are correspondingly arranged along the direction of water flow outflow. The water flow out of the second water outlet 128 can pass through the air suction chamber 129 and then flow out from the third water outlet 112. The air suction chamber 129 is provided with an air intake port 113, and the air suction chamber 129 is connected with the outside through the air intake port 113. The gas can enter the air suction chamber 129 through the air intake port 113. Therefore, when the water flow is accelerated and ejected through the second water outlet 128, due to the Venturi principle, a negative pressure area is formed near the second water outlet 128, and the outside air enters the air suction chamber 129 through the air intake port 113 and mixes with the water flow to form bubble water, and the bubble water flows out through the third water outlet 112.

[0027] It can be understood that the second water outlet hole 128 and the third water outlet hole 112 can be provided as a plurality of closely arranged ones.

[0028] The spray gun nozzle 100 provided according to the embodiment of the present invention can output bubble water through the third water outlet 112. The bubble water output is softer than the ordinary water column water output, and can provide users with a more diverse flushing and cleaning experience.

[0029] according to Figure 3 , Figure 4 , Figure 7 and Figure 8 In some embodiments of the present invention, the housing is a split splicing structure, specifically, it is composed of an upper cover 110, a main body 120 and a bottom cover 130, and the upper cover 110 and the bottom cover 130 are respectively connected to two opposite surfaces of the main body 120. The first water outlet 111 and the third water outlet 112 are provided on the upper cover 110, which are water outlet channels that penetrate the upper cover 110. The main body 120 is provided with a second water outlet 128, and the upper cover 110 is provided on one side of the main body 120 where the second water outlet 128 is provided, and is enclosed with the main body 120 to form an air suction space, that is, an air suction cavity 129, and at this time, the second water outlet 128 is correspondingly provided with the third water outlet 112, so that the water flow sprayed from the second water outlet 128 can be directly sprayed out of the third water outlet 112 after mixing with the gas in the air suction cavity 129. Bubble water. The bottom cover 130 is disposed on a side of the main body 120 away from the upper cover 110 , and the bottom cover 130 and the main body 120 enclose a first water inlet channel 121 , a second water inlet channel 122 , a third water inlet channel 123 , a first water passage chamber 124 and a third water passage chamber 126 .

[0030] Specifically, there may be various ways to splice the upper cover 110 , the main body 120 and the bottom cover 130 , such as directly applying glue on the splicing planes between the two to bond them together, or joining them together using screws, bolts and other components.

[0031] In some embodiments of the present invention, the upper cover 110, the main body 120 and the bottom cover 130 are respectively provided with positioning holes and positioning grooves, and the positioning holes and positioning grooves cooperate to achieve relative fixation of the above components. The positioning holes and positioning grooves can also be set in specific positions and shapes to achieve a foolproof effect. A cylinder (not shown) can be sleeved on the spray gun nozzle 100 after splicing to tighten the nozzle to prevent it from detaching. It can be understood that a notch is provided on the cylinder to expose the first water outlet 111 and the third water outlet 112 to discharge water to the outside.

[0032] refer to Figure 7 and Figure 8In some embodiments of the present invention, a first water inlet groove 1211, a second water inlet groove 1221, a third water inlet groove 1231, a first water flow groove 1241 and a second water flow groove 1261 are provided on one side of the main body 120 close to the bottom cover 130, and a guide column 134, a circular groove 136 and a water flow channel 135 are provided on the bottom cover 130, wherein the groove 131 is provided at the edge of the circular groove 136, and the two ends of the water flow channel 135 are a channel inlet 1351 and a channel outlet 1352 respectively. Thus, when the main body 120 is spliced ​​with the bottom cover 130, the first water inlet groove 1211, the third water inlet groove 1231, the first water passage groove 1241 and the second water passage groove 1261 are all closed by the bottom cover 130, thereby forming the first water inlet channel 121, the third water inlet channel 123, the first water passage cavity 124 and the third water passage cavity 126, wherein the guide column 134 is inserted into the second water passage groove 1261. In addition, the channel inlet 1351 of the water passage channel 135 is communicated with the second water inlet groove 1221, and the channel outlet 1352 is penetrated from the circular groove 136, that is, penetrated from the first water passage cavity 124, thereby forming the second water inlet channel 122, and one end of the second water passage cavity 141 on the rotating shaft of the turbine 140 is communicated with the channel outlet 1352, thereby communicating with the second water inlet channel 122.

[0033] Therefore, through the structural design of the spray gun nozzle 100 of the embodiment of the present invention, the production and assembly process is more convenient, and it can be disassembled at any time during daily use to clean and maintain the water channels 135 therein, which provides a better user experience.

[0034] refer to Figure 3 In some embodiments of the present invention, a notch is provided on at least one side of the upper cover 110. When the upper cover 110 and the main body 120 are enclosed and combined to form the air intake cavity 129, the notch is the air intake port 113 of the air intake cavity 129. External gas can enter the air intake cavity 129 through the air intake port 113 to form bubble water.

[0035] It is understandable that there may be multiple air inlets 113 , and the multiple air inlets 113 may be individually disposed on one side of the upper cover 110 , or may be arranged on both sides of the upper cover 110 , and may be disposed according to actual usage requirements.

[0036] according to Figure 2 , Figure 3 and Figure 8 In some embodiments of the present invention, the main body 120 is provided with an air guide channel 127 extending along the outer peripheral wall of the main body 120. Specifically, the air guide channel 127 can be formed by being recessed inward on the outer peripheral wall of the main body 120. The air inlet 113 is connected to the air guide channel 127. When the cylinder wraps the shell, an airway for gas to pass through is formed between the air guide channel 127 and the inner wall of the cylinder.

[0037] It is understandable that the air guide channel 127 can be arranged in a variety of ways. It can extend from one end close to the upper cover 110 to one end close to the bottom cover 130, or it can extend from one end close to the upper cover 110 to other places that are convenient for gas to enter. The present application does not impose any restrictions on this.

[0038] Furthermore, a second air guiding channel may be provided on the bottom cover 130 at a position corresponding to the air guiding channel 127 , and the second air guiding channel is connected to the air guiding channel 127 to extend the length of the air channel.

[0039] refer to Figure 1 Some other embodiments of the present invention provide a spray gun, including the spray gun nozzle 100, which is telescopically arranged on the spray gun, and the spray gun is provided with at least a water channel connecting the water source and the spray gun nozzle 100, so that water flows into the spray gun nozzle 100 and provides a cleaning water flow to the user. It is understandable that the spray gun can also be provided with a driving mechanism to drive the gun body to move to different positions or angles to meet different cleaning needs of users.

[0040] Some other embodiments of the present invention also provide a smart toilet, including the above-mentioned spray gun nozzle 100 or the above-mentioned spray gun. Specifically, a diversion mechanism can be provided on the smart toilet to control the water flow to selectively enter one of the first water inlet channel 121, the second water inlet channel 122 and the third water inlet channel 123. The user can control the diversion mechanism through the control module to select different types of water output from the spray gun nozzle 100.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A spray gun nozzle, characterized in that: include: A housing, the housing comprising a first water inlet channel, a first water passage cavity and a first water outlet hole, the first water passage cavity and the first water outlet hole being in communication; A turbine, rotatably disposed in the first water passage chamber; The first water inlet channel and the first water passage chamber are connected through a first water passage, and a first groove is provided on the bottom wall of the first water inlet channel at the first water passage, and the curvature of the side wall of the first groove is K1, and K1 gradually decreases along the rotation direction of the turbine, wherein the range of K1 is 0.008-4.

4.

2. The spray gun nozzle according to claim 1, characterized in that: It also includes a second groove and a third groove. The first groove, the second groove and the third groove are arranged in sequence along the rotation direction of the turbine, and the water flow cross-sectional area gradually decreases.

3. The spray gun nozzle according to claim 2, characterized in that: The curvature K2 of the second groove and the curvature K3 of the third groove both gradually decrease along the rotation direction of the turbine, wherein the range of K2 is 0.06-5.1, and the range of K3 is 0.57-10.

74.

4. The spray gun nozzle according to claim 3, characterized in that: The housing further comprises a second water inlet passage; The turbine includes blades and a rotating shaft, and a second water passage chamber is arranged on the rotating shaft. One end of the second water passage chamber is connected with the second water inlet channel, and the other end is connected with the first water outlet hole, so that water flows into the second water passage chamber from the second water inlet channel and then flows out from the first water outlet hole.

5. The spray gun nozzle according to claim 4, characterized in that: The shell also includes a third water inlet channel, a third water passage chamber, a second water outlet hole, an air suction chamber and a third water outlet hole which are connected in sequence, wherein a guide column is arranged on the third water passage chamber, an air suction port is arranged on the air suction chamber, the second water outlet hole is arranged in the air suction chamber, and the second water outlet hole and the third water outlet hole are arranged correspondingly.

6. The spray gun nozzle according to claim 5, characterized in that: The housing comprises: An upper cover, wherein the upper cover is provided with a first water outlet and a third water outlet; A main body, the second water outlet hole is arranged on the main body, and the upper cover is arranged on a side of the main body where the second water outlet hole is arranged, so as to enclose the air suction cavity; The bottom cover is arranged on a side of the main body away from the upper cover, and the bottom cover and the main body enclose the first water inlet channel, the second water inlet channel, the third water inlet channel, the first water passage cavity and the third water passage cavity.

7. The spray gun nozzle according to claim 6, characterized in that: An air inlet is arranged on at least one side of the upper cover.

8. The spray gun nozzle according to claim 7, characterized in that: The main body is provided with an air guide channel, and the air guide channel is communicated with the air inlet.

9. A spray gun, characterized in that: Comprising the spray gun nozzle as described in any one of claims 1-8.

10. Smart toilet, characterized in that, It comprises a spray gun head as described in any one of claims 1 to 8 or a spray gun as described in claim 9.

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