Intelligent toilet, spray gun thereof, and spray gun control method

Abstract

The present invention provides a smart toilet and its spray gun, and a spray gun control method. The spray gun includes a shell, a nozzle seat and a reversing valve disposed at the inner front end of the shell; the nozzle seat is provided with a plurality of nozzles for spraying water out of the shell; the reversing valve includes a valve body and a valve core, the valve body is respectively connected with a plurality of nozzles and the water inlet pipeline of the smart toilet, and the valve core is in transmission connection with a driving device; the driving device is used to drive the valve core to rotate in a preset direction to switch the water inlet to different nozzles, so as to realize smooth switching of the water outlet pipeline of the spray gun. In the smart toilet and its spray gun provided by the present invention, the nozzle and the reversing valve are both located at the front end of the shell, the reversing valve is disposed close to the nozzle, and the valve core rotates in a preset direction relative to the valve body to switch the water inlet to different nozzles, which not only reduces the amount of pipelines, reasonably utilizes the space, but also shortens the distance from the water inlet to the nozzle, avoids the accumulation of cold water, and improves the comfort of user experience.

Description

Technical Field

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

[0002] At present, the spray gun function of the smart toilet is quite complete, with a special nozzle for women (referred to as the women's washing nozzle), a special nozzle for defecation (referred to as the defecation nozzle) and a buttocks washing nozzle (referred to as the defecation nozzle), and the switching of each nozzle is realized through the internal structure of the spray gun. The existing spray gun for smart toilets switches the water circuits for women's washing, defecation and defecation before entering each nozzle, and then connects to the women's washing nozzle, defecation nozzle and defecation nozzle respectively through three pipes. Cold water is easily accumulated in the pipe, causing each nozzle to spray cold water in the initial stage of water spraying, which will make the user feel uncomfortable and seriously affect the user experience. Summary of the invention

[0003] The purpose of the present invention is to provide a smart toilet and a spray gun thereof, so as to solve the problem in the prior art that cold water is easily accumulated in the pipes and cold water is first discharged in the initial stage of spraying and washing, resulting in poor user experience.

[0004] Another object of the present invention is to provide a control method capable of achieving smooth switching of the water outlet pipeline of a spray gun for an intelligent toilet.

[0005] A spray gun for an intelligent toilet, comprising:

[0006] case;

[0007] A nozzle seat is disposed at the front end of the housing; the nozzle seat is provided with a plurality of nozzles for spraying water out of the housing;

[0008] A reversing valve is disposed at the front end of the housing and below the nozzle seat; the reversing valve comprises a valve body and a valve core, the valve core is rotatably mounted in the valve body, and the valve body is respectively connected to the multiple nozzles and the water inlet pipeline of the smart toilet;

[0009] A driving device is in driving connection with the valve core; the driving device is used to drive the valve core to rotate in a preset direction to switch the water inlet to different nozzles.

[0010] In one embodiment, the valve body includes a water inlet portion for communicating with a water inlet pipeline of the smart toilet and a water outlet connected to the multiple nozzles in a one-to-one correspondence;

[0011] The valve core has a plurality of through holes arranged in sequence along the axial direction of the valve core, and the plurality of through holes rotate with the valve core to connect one of the water outlets with the water inlet.

[0012] In one embodiment, the water inlet portion includes a channel provided in the valve body and a plurality of water transfer holes penetrating the channel; the plurality of through holes rotate with the valve core to connect one of the water outlets with one of the water transfer holes.

[0013] In one embodiment, the multiple water outlets and the multiple water delivery holes are arranged in a straight line on the valve body, and the multiple water outlets and the multiple water delivery holes are arranged opposite to each other.

[0014] In one embodiment, the plurality of through holes are staggeredly arranged around the valve core.

[0015] In one embodiment, the plurality of through holes are located on the same side of the valve core.

[0016] In one embodiment, the driving device comprises:

[0017] The motor is arranged at the rear end of the housing and the output shaft is drivingly connected to the valve core.

[0018] In one embodiment, the driving device further comprises:

[0019] The transmission shaft is arranged in the housing and is respectively connected to the valve core and the output shaft of the motor.

[0020] In one embodiment, the driving device further includes a connecting frame disposed in the housing; the connecting frame includes:

[0021] A plurality of annular plates are sleeved outside the transmission shaft and arranged at intervals along the axial direction of the transmission shaft; wherein the annular plate at one end is fixedly connected to the valve body;

[0022] A plurality of plate bodies are connected to each of the annular plates and are arranged at intervals around the annular plates.

[0023] In one embodiment, the driving device further comprises a protective cover disposed outside the motor; the protective cover is composed of at least two cover parts.

[0024] A spray gun for a smart toilet as described in any one of the above items, wherein the control method is as follows:

[0025] The valve core is driven to rotate in a preset direction by a driving device, and the valve core is rotated to different positions, so that the water from the water inlet pipeline of the smart toilet is switched to be sprayed at different nozzles.

[0026] A smart toilet comprises a water inlet pipeline and any one of the spray guns described above, wherein the valve body of a reversing valve in the spray gun is connected to the water inlet pipeline.

[0027] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0028] In the smart toilet and its spray gun, the nozzle and the reversing valve of the present invention are all located at the front end of the shell. The reversing valve is arranged close to the nozzle. The valve core rotates in a preset direction relative to the valve body to switch the water inlet to different nozzles. This not only reduces the use of pipes and reasonably utilizes the space, but also shortens the distance from the water inlet to the nozzle, avoids the accumulation of cold water, and improves the comfort of user experience.

[0029] The control method of the spray gun for the smart toilet in the present invention can realize smooth switching of the water outlet pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a cross-sectional view of a spray gun for a smart toilet according to an embodiment of the present invention;

[0031] Figure 2 is an axonometric view of a spray gun for a smart toilet according to an embodiment of the present invention;

[0032] Figure 3 is an internal axonometric view of a spray gun for a smart toilet according to an embodiment of the present invention;

[0033] Figure 4 is a cross-sectional view of a valve body in a reversing valve according to an embodiment of the present invention;

[0034] Figure 5 It is a left side view of the valve body in the reversing valve of the embodiment of the present invention;

[0035] Figure 6 is a cross-sectional view of a valve core in a reversing valve according to an embodiment of the present invention;

[0036] Figure 7 is an axonometric view of a valve core in a reversing valve according to an embodiment of the present invention;

[0037] Figure 8 is a cross-sectional view of a reversing valve according to an embodiment of the present invention;

[0038] Fig. 9 is a cross-sectional view of a nozzle according to an embodiment of the present invention;

[0039] Fig.10 is an axonometric view of a reversing valve according to an embodiment of the present invention;

[0040] Fig.11 is an axonometric view of a nozzle holder according to an embodiment of the present invention;

[0041] Fig.12 It is a left side view of the nozzle holder according to an embodiment of the present invention;

[0042] Fig.13 It is an axonometric view of a nozzle according to an embodiment of the present invention.

[0043] The following are the descriptions of the reference numerals:

[0044] 1. Directional valve;

[0045] 10. Valve body;

[0046] 100, water inlet; 101, channel; 102, water delivery hole; 1021, first water delivery hole; 1022, second water delivery hole; 1023, third water delivery hole;

[0047] 103, water outlet; 1031, first water outlet; 1032, second water outlet; 1033, third water outlet;

[0048] 104, accommodating cavity;

[0049] 105. Export;

[0050] 106. Entrance and exit;

[0051] 107. Slot;

[0052] 11. Valve core;

[0053] 110, through hole; 1101, first through hole; 1102, second through hole; 1103, third through hole;

[0054] 111, core; 1111, cavity; 1112, opening;

[0055] 112, transmission body; 1121, groove;

[0056] 113. End cap; 1131. Projection;

[0057] 114, rod body;

[0058] 12. Pipe joints;

[0059] 13. The first sealing ring;

[0060] 14. Second sealing ring;

[0061] 15. Valve cover;

[0062] 2. Shell; 21. Opening;

[0063] 3. Nozzle seat;

[0064] 30. Base body;

[0065] 31. Nozzle; 311. Women's wash nozzle; 312. Toilet wash nozzle; 313. Laxative nozzle;

[0066] 32. Guide pillar;

[0067] 4. Driving device;

[0068] 41. Motor;

[0069] 42. Transmission shaft;

[0070] 43. connecting frame; 431. annular plate; 432. plate body;

[0071] 44, protective cover; 441, upper cover body; 442, lower cover body;

[0072] 5. Water inlet pipeline. DETAILED DESCRIPTION

[0073] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0074] The embodiment of the present application provides a smart toilet, which includes a spray gun and a water inlet pipeline 5. Figure 1 As shown, the spray gun includes a reversing valve 1 , a housing 2 and a nozzle seat 3 .

[0075] like Figure 1 As shown, the reversing valve 1 is placed at the front end of the interior of the housing 2. The nozzle seat 3 is placed at the front end of the interior of the housing 2 and is located above the reversing valve 1. The nozzle seat 3 is provided with a plurality of nozzles 31 for spraying water out of the housing 2.

[0076] The reversing valve 1 comprises a valve body 10 and a valve core 11. The valve core 11 is rotatably mounted in the valve body 10. The valve body 10 is respectively connected to a plurality of nozzles 31 and the water inlet pipeline 5. The valve core 11 rotates in a preset direction to switch the water inlet to different nozzles 31.

[0077] The above-mentioned smart toilet and its spray gun, nozzle 31 and reversing valve 1 are all located at the front end of the shell 2. The reversing valve 1 is arranged close to the nozzle 31. The valve core 11 rotates in a preset direction relative to the valve body 10 to switch the water inlet to different nozzles 31, which not only reduces the use of pipes and reasonably utilizes the space, but also shortens the distance from the water inlet to the nozzle, avoids the accumulation of cold water, and improves the comfort of user experience.

[0078] In one embodiment, the water inlet pipe 5 is connected to the pipe joint 12 on the valve body 10. The pipe joint 12 facilitates the connection between the valve body 10 and the water inlet pipe 5. The pipe joint 12 can be connected to the valve body 10 as a whole. The pipe joint 12 and the valve body 10 can be an integrally formed structure. The pipe joint 12 can be a corrugated joint so that the water inlet pipe 5 of the smart toilet is clamped on the pipe joint 12.

[0079] like Figure 2 As shown, the housing 2 may be a cylindrical thin shell, with a closed front end and an open rear end. An opening 21 is provided on the outer circumference of the housing 2 near the front end.

[0080] A plurality of nozzles 31 are disposed on the nozzle holder 3 , and the nozzle holder 3 is disposed at the front end of the housing 2 . Each nozzle 31 is located at the opening 21 .

[0081] In one embodiment, if Figure 2 As shown, the spray gun further includes a driving device 4 which is transmission-connected to the valve core 11 .

[0082] The driving device 4 includes a motor 41, which is arranged at the rear end of the housing 2 and the output shaft of which is transmission-connected to the valve core 11. The rotation speed of the rotor in the motor 41 is relatively low, so the output shaft can be directly connected to the valve core 11. When the rotation speed of the rotor in the motor 41 is relatively high, it is necessary to transmission-connect the output shaft to the reduction device, and then transmission-connect the output end of the reduction device to the valve core 11. The reduction device can be a gear reduction box, etc.

[0083] In another embodiment, the driving device 4 further includes a transmission shaft 42, which is disposed in the housing 2 and is respectively connected to the valve core 11 and the output shaft of the motor 41. The transmission shaft 42 transmits torque between the valve core 11 and the motor 41, which is both efficient and convenient.

[0084] like Figure 3 As shown, in one embodiment, the driving device 4 further includes a connecting frame 43 disposed in the housing 2. The connecting frame 43 includes a plurality of annular plates 431 and a plurality of plate bodies 432. The plurality of annular plates 431 are sleeved outside the transmission shaft 42 and are arranged at intervals along the axial direction of the transmission shaft 42. The plate bodies 432 are preferably strip-shaped plates. The plurality of plate bodies 432 are all connected to each annular plate 431. In addition, the plurality of plate bodies 432 are arranged at intervals around the annular plates 431 along the edges of each annular plate 431. The annular plate 431 at one end can be fixedly connected to the valve body 10 by screws.

[0085] The annular plate 431 and the plate body 432 can be connected as one body and formed by one-piece molding. For example, the annular plate 431 and the plate body 432 are both made of plastic and can be formed as one body by injection molding. The connecting frame 43 can support and protect the transmission shaft 42.

[0086] The driving device 4 further includes a protective cover 44 which is arranged outside the motor 41 to protect the motor 41. The protective cover 44 is composed of at least two cover parts. Figure 3 As shown, the protective cover 44 is divided into an upper cover body 441 and a lower cover body 442, and the motor 41 can be placed between the upper and lower cover bodies 441 and 442. The upper cover body 441 and the lower cover body 442 are opposed to each other vertically, and the two are engaged by a clamping structure. For example, a clamping claw is provided on the upper cover body 441, and a clamping hole is provided on the lower cover body 442. The clamping claw and the clamping hole are matched to each other to achieve the engagement of the upper cover body 441 and the lower cover body 442.

[0087] The upper cover body 441 and the lower cover body 442 may also be made of plastic material, and the annular plate 431, the plate body 432 and the lower cover body 442 may be connected into one piece and manufactured by injection molding.

[0088] The valve core 11 is driven to rotate in a preset direction by the driving device 4 and is rotated to different positions so that the water from the smart toilet water inlet pipe 5 is switched to different nozzles for spraying, thereby achieving smooth switching of the water outlet pipe.

[0089] In one embodiment, if Figure 4 As shown, the valve body 10 in the reversing valve 1 includes a water inlet 100 and a plurality of water outlets 103. The water inlet 100 is used to communicate with the water inlet pipeline 5 of the smart toilet. Each water outlet 103 is connected to the nozzle 31 on the nozzle holder 3 in a one-to-one correspondence.

[0090] The valve core 11 is rotatably mounted in the valve body 10 , and the valve core 11 includes a plurality of water delivery units. The plurality of water delivery units are sequentially arranged along the axial direction of the valve core 11 , and the plurality of water delivery units are staggeredly arranged around the valve core 11 .

[0091] The valve core 11 rotates in a preset direction relative to the valve body 10, so that the water delivery unit rotates to different water outlets 103, and connects the water outlets 103 with the water inlet 100, thereby reducing the transmission error and ensuring the accurate alignment of the water outlet channel.

[0092] One implementation method, such as Figure 4 As shown, the valve body 10 is a cylinder, and the interior of the valve body 10 is an accommodating chamber 104 for accommodating the valve core 11 .

[0093] The valve core 11 can rotate around its own axis in the accommodating chamber 104. The valve core 11 and the valve body 10 can be eccentrically arranged or coaxially arranged. The positional relationship between the two can be determined according to the structure and position of the driving device 4 that drives the valve core 11 to rotate.

[0094] The water inlet 100 includes a channel 101 disposed in the valve body 10 and a plurality of water delivery holes 102 penetrating the channel 101. The channel 101 is disposed in the valve body 10, and the channel 101 extends along the axial direction of the valve body 10. One end of the channel 101 penetrates the end surface of the valve body 10 to form a water inlet, which is used to communicate with the water inlet pipeline 5 of the smart toilet.

[0095] The water inlet of the valve body 10 may be preferably connected to a pipe joint 12, through which the water inlet part 100 can be connected to the water inlet pipeline 5 of the smart toilet. The pipe joint 12 can be connected to the valve body 10 as an integral structure. The pipe joint 12 can be a corrugated joint so that the water inlet pipeline 5 of the smart toilet is clamped on the pipe joint 12.

[0096] The plurality of water delivery holes 102 extend radially, penetrate the inner wall of the valve body 10 and communicate with the channel 101. The outer peripheral surface of the valve body 10 is provided with a plurality of water outlets 103 penetrating the valve body 10, and each water outlet 103 penetrates the valve body 10 in the radial direction.

[0097] like Figure 6 As shown, the valve core 11 comprises a core body 111 with a cavity 1111 therein, and the water delivery unit is a through hole 110 opened on the core body 111 and connected to the cavity 1111. The interior of the core body 111 is a cylindrical cavity 1111 coaxial with the core body 111 and extending axially.

[0098] like Figure 7 As shown, the core body 111 may be a cylindrical body. A plurality of through holes 110 are arranged in sequence along the axial direction of the core body 111 and staggeredly arranged around the core body 111 on the outer peripheral surface of the core body 111 .

[0099] like Figure 8 As shown, the core 111 of the valve core 11 is rotatably mounted in the accommodating cavity 104 of the valve body 10. The transmission shaft 42 in the driving device 4 of the smart toilet spray gun can be connected to the core 111 through transmission, and the core 111 is driven to rotate by the motor 41, see Figure 2 .

[0100] Since the core body 111 is a cylinder, the accommodating cavity 104 is preferably a cylindrical cavity adapted to the core body 111 , and a sufficient gap is left between the core body 111 and the accommodating cavity 104 to facilitate the rotation of the core body 111 .

[0101] The core body 111 rotates unidirectionally in a preset direction relative to the valve body 10, and the through hole 110 can rotate to different water outlets 103, and connect the water outlet 103 with a water delivery hole 102, thereby reducing the transmission error and ensuring the accurate alignment of the water outlet channel.

[0102] In one embodiment, the number of the water delivery holes 102 is preferably three. The three water delivery holes 102 are arranged in a straight line at equal intervals along the axial direction of the valve body 10. The number of the water outlets 103 is also three, and the three water outlets 103 are arranged in a straight line at equal intervals along the axial direction of the valve body 10. The water outlets 103 are arranged opposite to the water delivery holes 102.

[0103] like Figure 7 As shown, three through holes 110 may be provided on the outer circumference of the core body 111. The three through holes 110 are arc-shaped holes extending along the outer circumference of the core body 111, and the arcs of the three arc-shaped holes are the same.

[0104] The three through holes 110 are arranged in sequence at equal intervals along the axial direction of the core body 111. The three through holes 110 are arranged alternately around the core body 111. The angle formed by the line connecting the two ends of each through hole 110 and the central axis of the core body 111 is 120 degrees, and the orthographic projections of the three through holes 110 along the axial direction of the core body 111 form a circular ring.

[0105] The spacing distance between adjacent water transfer holes 102 is equal to the spacing distance between adjacent through holes 110 on the core 111 , so that the through holes 110 are aligned with the water transfer holes 102 .

[0106] The spacing distance between adjacent water outlets 103 is equal to the spacing distance between adjacent through holes 110 on the core 111 , so that the through holes 110 are aligned with the water outlets 103 .

[0107] like Fig. 9 As shown, the three water delivery holes 102 are respectively the first water delivery hole 1021, the second water delivery hole 1022, and the third water delivery hole 1023. The three water outlets 103 are respectively the first water outlet 1031, the second water outlet 1032, and the third water outlet 1033. The three through holes are respectively the first through hole 1101, the second through hole 1102, and the third through hole 1103. There are three nozzles 31 on the nozzle holder 3, namely the women's washing nozzle 311, the toilet washing nozzle 312, and the defecation nozzle 313.

[0108] When the core body 111 rotates to the first position, the second through hole 1102 of the core body 111 is connected to the second water outlet 1032 of the valve body 10, and the third through hole 1103 of the core body 111 is connected to the third water delivery hole 1023 of the valve body 10. The incoming water is transported from the third water delivery hole 1023 to the third through hole 1103 along the channel 101, and after passing through the core body 111, it flows from the second through hole 1102 to the second water outlet 1032. The second water outlet 1032 can be connected to the toilet washing nozzle 312. In this way, the incoming water from the second water outlet 1032 can be sprayed out by the toilet washing nozzle 312 to perform a spray washing operation.

[0109] When the core body 111 rotates to the second position, the first through hole 1101 of the core body 111 is connected to the first water outlet 1031 of the valve body 10, and the second through hole 1102 of the core body 111 is connected to the second water delivery hole 1022 of the valve body 10. The incoming water is transported from the second water delivery hole 1022 to the second through hole 1102 along the channel 101, and after passing through the core body 111, it flows from the first through hole 1101 to the first water outlet 1031. The first water outlet 1031 can be connected to the women's washing nozzle 311. In this way, the incoming water from the first water outlet 1031 can be sprayed out by the women's washing nozzle 311 to perform a spray washing operation.

[0110] When the core body 111 rotates to the third position, the third through hole 1103 of the core body 111 is connected to the third water outlet 1033 of the valve body 10, and the first through hole 1101 of the core body 111 is connected to the first water delivery hole 1021 of the valve body 10. The incoming water is transported from the first water delivery hole 1021 to the first through hole 1101 along the channel 101, and after passing through the core body 111, it flows from the third through hole 1103 to the third water outlet 1033. The third water outlet 1033 can be connected to the defecation nozzle 313. In this way, the incoming water from the third water outlet 1033 can be sprayed out by the defecation nozzle 313 to perform a spray washing operation.

[0111] The valve core 11 rotates unidirectionally in a preset direction relative to the valve body 10 to switch between different nozzles. The core 111 rotates unidirectionally in a preset direction relative to the valve body 10, and the through hole 110 can rotate to different water outlets 103, and connect the water outlet 103 with a water delivery hole 102, thereby reducing the transmission error and ensuring the accurate alignment of the water outlet channel.

[0112] Since the through hole 110 is an arc-shaped hole, when aligned with the water supply hole 102 and the water outlet 103, the through hole 110 has a larger coverage area and is easy to penetrate the water supply hole 102 and the water outlet 103, so that the water path will not be blocked, which helps to improve the user experience during cleaning.

[0113] In one embodiment, the core 111 can be a regular hexagonal prism with a hollow interior, and through holes 110 serving as water transfer units are provided on the separated sides. The three through holes 110 are arranged in sequence at equal intervals along the axial direction of the core 111. In this way, the three through holes 110 are not only arranged in a staggered manner, but also arranged at an angle of 120 degrees to each other. When the transmission shaft 42 in the driving device 4 in the smart toilet spray gun drives the core 111 to rotate, each rotation of 120 degrees can realize that a through hole 110 is connected to a water transfer hole 102, and another through hole 110 is connected to a water outlet 103, thereby realizing that the incoming water is delivered to the nozzle corresponding to a certain water outlet 103 for flushing operations.

[0114] The through hole 110 is a strip hole extending along the width direction of the side surface of the regular hexagonal prism, so that the through hole 110 has a larger coverage area and is easy to connect with the water delivery hole 102 and the water outlet 103 to avoid water channel blockage and affect user experience.

[0115] The channel 101 on the valve body 10 may include a main channel and multiple branches. One end of the main channel passes through the valve body 10 and forms a water inlet for connecting to the water inlet pipe 5 of the smart toilet. Multiple branches are connected to the main channel, and each branch extends along the circumference of the valve body 10. Each of the multiple water delivery holes 102 is connected to a branch, and each water delivery hole 102 passes through the inner wall of the valve body 10.

[0116] The water outlet 103 and the water delivery hole 102 can be arranged arbitrarily, for example, in a triangle, a circle or other regular or irregular shapes. According to the distribution of the water outlet 103 and the water delivery hole 102, the multiple through holes 110 on the core 111 are arranged in sequence along the axial direction of the core 111 and arranged in a staggered manner around the core 111. Alternatively, the multiple through holes 110 on the core 111 are located on the same side of the core 111.

[0117] When the transmission shaft 42 in the driving device 4 of the smart toilet spray gun drives the core 111 to rotate, a certain through hole 110 can be connected to a certain water delivery hole 102 by rotating at a certain angle, and a certain through hole 110 can be connected to a certain water outlet 103. Continuing to rotate at a certain angle, a certain through hole 110 can be connected to a certain water delivery hole 102, and a certain through hole 110 can be connected to a certain water outlet 103. In this way, the core 111 can be rotated in one direction to sequentially deliver the incoming water to the nozzle 31 corresponding to a certain water outlet 103 for flushing.

[0118] In another embodiment, the water delivery unit provided on the core 111 may be a plurality of water delivery nozzles connected to the cavity 1111 in the core 111, and a nozzle is provided at one end of the water delivery nozzle that is not connected to the core 111, and the nozzle is connected to the nozzle 31. The nozzle is contracted to enhance the spraying force of the water, so that the water delivered to the nozzle 31 is more concentrated, ensuring the strength of the water delivery to the nozzle 31, ensuring the water spraying force of the nozzle 31, and improving the flushing experience of the user.

[0119] In one embodiment, Figure 7 As shown, the valve core 11 further includes a transmission body 112 connected to the core body 111 , and the transmission body 112 is provided with a groove 1121 for connecting with the transmission shaft 42 .

[0120] The transmission body 112 is a cylinder, one end of which is coaxially connected to one end of the core body 111. A groove 1121 is provided on the end surface of the other end of the transmission body 112. The groove 1121 is located at the center of the end surface of the transmission body 112. The transmission body 112 and the core body 111 can be an integral structure, which is made by an integral molding process. The transmission body 112 and the core body 111 can also be assembled by welding or bonding to form the valve core 11.

[0121] like Figure 1 As shown, the motor 41 is arranged at the rear end of the housing 2, and the output shaft is connected to the transmission shaft 42. The transmission shaft 42 is inserted into the housing 2, and the end of the transmission shaft 42 is inserted into the groove 1121, so as to realize the transmission connection between the transmission shaft 42 and the transmission body 112. The transmission connection between the transmission body 112 and the transmission shaft 42 helps to improve the stability of the transmission and facilitates the transmission of torque by the transmission shaft 42.

[0122] In one embodiment, if Figure 4 As shown, one end of the valve body 10 is provided with an outlet 105 for the transmission body 112 to pass through. Figure 8 As shown, the transmission body 112 can extend from the outlet 105 so that the transmission body 112 is connected to the transmission shaft 42 in the driving device 4 of the smart toilet spray gun. After the transmission body 112 extends from the outlet 105, the transmission shaft 42 is inserted into the groove 1121 to achieve connection. The transmission shaft 42 drives the core 111 to rotate through the transmission body 112. After the core 111 rotates to a certain position, the through hole 110 can connect the water delivery hole 102 and the water outlet 103.

[0123] like Figure 8 As shown, a first sealing ring 13 is sleeved on the transmission body 112 , and the first sealing ring 13 seals between the transmission body 112 and the outlet 105 .

[0124] In addition, in one embodiment, the transmission shaft 42 can extend from the outlet 105 into the valve body 10 and be plugged into the groove 1121 of the transmission body 112 to achieve transmission.

[0125] The transmission body 112 is connected to the transmission shaft 42 through transmission, which helps to improve the stability of transmission and facilitates the transmission of torque by the transmission shaft 42. The valve core 11 may also only include the core body 111, and the transmission shaft 42 may be directly connected to the core body 111 through transmission.

[0126] In one embodiment, if Figure 6 As shown, the core 111 is provided with an opening 1112 which is opposite to the transmission body 112. Figure 8 As shown, the valve core 11 further includes an end cap 113 sealed on the opening 1112. The opening 1112 is provided in the middle of the other end of the core body 111. The opening 1112 can be a stepped hole, and a convex portion 1131 is provided in the middle of one side of the end cap 113. The second sealing ring 14 is sleeved on the convex portion 1131.

[0127] When the end cover 113 is sealed on the opening 1112, the convex portion 1131 on the end cover 113 is located in the opening 1112. The second sealing ring 14 seals the end cover 113 and the hole wall of the opening 1112. The bottom end of the opening 1112 plays a certain blocking role on the convex portion 1131 on the end cover 113 and the second sealing ring 14, preventing the end cover 113 and the second sealing ring 14 from sliding into the core 111 and causing adverse effects on the waterway.

[0128] Another implementation method is as follows: Figure 8 As shown, the valve core 11 further includes a rod 114, which is inserted into the cavity 1111 of the core 111 and fixedly connected to the end cover 113 and the core 111. The end cover 113 and the core 111 are fixed by the rod 114.

[0129] One end of the rod body 114 is coaxially connected to the convex portion 1131 of the end cover 113 to form an integral structure. The rod body 114 penetrates into the cavity 1111 of the core body 111, and the other end of the rod body 114 is threadedly connected to the core body 111.

[0130] The end cap 113 is fixedly connected to the core 111 through the rod 114. After the rod 114 is inserted into the core 111, the end cap 113 is rotated, and the rod 114 and the core 111 are screwed together, and at the same time, the end cap 113 also seals the opening 1112.

[0131] The end cover 113 can be quickly assembled to the opening 1112 of the core body 111 through the rod body 114. Moreover, the rod body 114, the end cover 113 and the core body 111 are coaxial. When the valve core 11 rotates, the rod body 114 can also play a role in stabilizing the rotation axis.

[0132] Another embodiment, such as Figure 5 As shown, the valve body 10 also includes an inlet and outlet 106 for the valve core 11 to enter and exit. The inlet and outlet 106 is located at the end of the valve body 10, which is convenient for the valve core 11 to enter and exit the valve body 10. Fig.10 As shown, the reversing valve 1 further includes a valve cover 15 that covers the inlet and outlet 106. After the valve core 11 is installed in the valve body 10, the valve cover 15 can be sealed on the inlet and outlet 106, and the valve cover 15 can be fixedly connected to the valve body 10 by screws. The valve cover 15 can not only play a sealing role, but also can seal the valve core 11 in the valve body 10, thereby protecting the valve core 11.

[0133] One implementation method, such as Fig.10 As shown, the valve body 10 is provided with slots 107. There are two slots 107, which are arranged parallel to the axial direction of the valve body 10. A slot 107 is provided on both sides of the water outlet 103 respectively.

[0134] like Fig.11 As shown, the nozzle holder 3 includes a holder body 30 and a guide post 32 fixedly disposed on the bottom surface of the holder body 30. Fig.12 As shown, there are two guide pillars 32, which are arranged in parallel and can be plugged into the two slots 107. The guide pillars 32 are arranged coplanar with the bottom surface of the seat body 30. The guide pillars 32 are inserted into the slots 107 to fix the nozzle seat 3 on the valve body 10.

[0135] like Fig.13 As shown in FIG. 1 , the reversing valve 1 and the nozzle holder 3 are fixedly assembled, thereby completing the assembly of the nozzle. Figure 2 As shown, the motor 41 is placed in the lower cover 442, and the upper cover 441 is sealed on the motor 41 and engaged with the lower cover 442. Figure 3As shown, the connecting frame 43 is fixedly connected to the valve body 10 and the lower cover 442 respectively. Figure 1 , the transmission shaft 42 is arranged in the connecting frame 43, one end of which is inserted into the groove 1121 of the transmission body 112 so as to realize transmission connection with the valve core 11, and the other end of which is transmission connected with the output shaft of the motor 41. Figure 2 As shown, the housing 2 is sleeved on the reversing valve 1, the connecting frame 43, and the transmission shaft 42. An opening 21 is provided on the housing 2, and the nozzle 31 on the nozzle holder 3 can spray water outward from the opening 21.

[0136] When the transmission shaft 42 in the driving device 4 drives the valve core 11 to rotate, each time the valve core 11 rotates a certain angle, one through hole 110 can be connected to a water delivery hole 102, and the other through hole 110 can be connected to a water outlet 103, thereby realizing smooth switching of the nozzle water outlet pipeline, and then realizing the delivery of the incoming water to the nozzle 31 corresponding to a certain water outlet 103 for flushing operations.

[0137] The above-mentioned smart toilet and its spray gun, nozzle 31 and reversing valve 1 are all located at the front end of the shell 2. The reversing valve 1 is arranged close to the nozzle 31. The valve core 11 rotates in a preset direction relative to the valve body 10 to switch the water inlet to different nozzles 31, which not only reduces the use of pipes and reasonably utilizes the space, but also shortens the distance from the water inlet to the nozzle, avoids the accumulation of cold water, and improves the comfort of user experience.

[0138] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A spray gun for a smart toilet, characterized in that: include: case; A nozzle seat is disposed at the front end of the housing; the nozzle seat is provided with a plurality of nozzles for spraying water out of the housing; A reversing valve is disposed at the front end of the housing and below the nozzle seat; the reversing valve comprises a valve body and a valve core, the valve core is rotatably mounted in the valve body, and the valve body is respectively connected to the multiple nozzles and the water inlet pipeline of the smart toilet; A driving device is drivingly connected to the valve core; the driving device is used to drive the valve core to rotate in a preset direction to switch the water inlet to different nozzles; The valve body includes a water inlet portion connected to the water inlet pipeline of the smart toilet and a water outlet connected to the multiple nozzles in a one-to-one correspondence; a pipe joint is provided on the valve body, and the water inlet pipeline is connected to the water inlet portion through the pipe joint; The valve core has a plurality of through holes arranged in sequence along the axial direction of the valve core, and the plurality of through holes rotate with the valve core to connect one of the water outlets with the water inlet; the water inlet includes a channel provided in the valve body and a plurality of water transfer holes passing through the channel; the plurality of through holes rotate with the valve core to connect one of the water outlets with one of the water transfer holes.

2. The spray gun according to claim 1, characterized in that The multiple water outlets and the multiple water delivery holes are arranged in a straight line on the valve body, and the multiple water outlets and the multiple water delivery holes are arranged opposite to each other.

3. The spray gun according to claim 2, characterized in that The plurality of through holes are arranged alternately around the valve core.

4. The spray gun according to claim 1, characterized in that The plurality of through holes are located on the same side of the valve core.

5. The spray gun according to any one of claims 1 to 4, characterized in that The driving device comprises: The motor is arranged at the rear end of the housing and the output shaft is drivingly connected to the valve core.

6. The spray gun according to claim 5, characterized in that The driving device further comprises: The transmission shaft is arranged in the housing and is respectively connected to the valve core and the output shaft of the motor.

7. The spray gun according to claim 6, characterized in that The driving device further comprises a connecting frame disposed in the housing; the connecting frame comprises: A plurality of annular plates are sleeved outside the transmission shaft and arranged at intervals along the axial direction of the transmission shaft; wherein the annular plate at one end is fixedly connected to the valve body; A plurality of plate bodies are connected to each of the annular plates and are arranged at intervals around the annular plates.

8. The spray gun according to claim 5, characterized in that The driving device also includes a protective cover arranged outside the motor; the protective cover is composed of at least two cover parts.

9. A spray gun for an intelligent toilet as claimed in any one of claims 1 to 8, wherein the control method thereof is as follows: The valve core is driven to rotate in a preset direction by a driving device, and the valve core is rotated to different positions, so that the water from the water inlet pipeline of the smart toilet is switched to be sprayed at different nozzles.

10. A smart toilet, characterized in that: It comprises a water inlet pipeline and the spray gun according to any one of claims 1 to 8, wherein the valve body of the reversing valve in the spray gun is connected to the water inlet pipeline.

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