Anti-siphon device for bidet and bidet

Abstract

The present invention discloses an anti-siphon device for a bidet, comprising a mounting body and an anti-siphon assembly mounted on the mounting body. The mounting cavity of the mounting body is provided with a through-hole for connecting the bidet piping. The anti-siphon assembly effectively prevents water backflow in the bidet. The present invention also discloses a bidet equipped with the anti-siphon device.

Description

Technical Field

[0001] The present invention relates to the field of bidets, in particular to an anti-siphon device for bidets and a bidet. Background Art

[0002] As people's living standards improve, more and more people are starting to use bidets. A bidet is a device that has the function of flushing the lower body of the human body and is used in conjunction with a toilet. Existing bidets have some problems. When the toilet is clogged and the sewage in the toilet floods the bidet nozzle, if the water supply pipeline is under negative pressure and the water valve in the bidet is not closed, a siphon phenomenon will occur, causing the sewage in the toilet to flow back into the water supply source and pollute the water supply source; in addition, after the existing bidet is cleaned, some residual water will still flow out of the nozzle. If the residual water is not emptied in time, it will deteriorate after a period of time. In this way, when the water supply pipeline is under negative pressure and the water valve in the bidet is not closed, a siphon phenomenon will occur, causing the residual water in the nozzle to flow back into the water supply source and pollute the water supply source. Summary of the Invention

[0003] The object of the present invention is to provide an anti-siphon device for a bidet, which can effectively prevent the problem of water backflow in the bidet; the present invention also provides a bidet with the anti-siphon device for a bidet.

[0004] In order to achieve the above object, the solution of the present invention is:

[0005] A bidet anti-siphon device comprises a mounting body and an anti-siphon assembly; a mounting cavity is formed in the mounting body, a through-hole for connecting to a bidet pipeline is provided at the bottom of the mounting cavity; the anti-siphon assembly comprises a shell, a blocking member and an elastic member; the shell is mounted in the mounting cavity, a water hole communicating with the through-hole is provided at the bottom of the shell inner cavity, and an air vent communicating with the outside atmosphere is provided at the top of the shell inner cavity; the blocking member can be moved up and down to fit in the shell inner cavity and control whether the air vent and the water vent are connected; the elastic member fits in the shell inner cavity and is used to drive the blocking member downward to connect the air vent and the water vent.

[0006] The inner cavity of the shell is provided with a tapered hole with an aperture gradually decreasing from bottom to top, and the tapered hole is located between the air vent and the water hole; the sealing part includes a drive shaft and a sealing ring fitted on the drive shaft, and the drive shaft can be moved up and down through the inner cavity of the shell, and the sealing ring movably contacts the inner wall of the tapered hole.

[0007] The driving shaft is provided with an outwardly protruding ring edge, the peripheral wall of the ring edge is provided with an annular groove, and the sealing ring is placed in the annular groove.

[0008] A spacer is provided in the vent hole, the outer edge of the spacer is connected to the inner edge of the vent hole, and a plurality of air holes are provided on the spacer; the elastic member is a spring, the upper and lower ends of the spring abut against the spacer and the ring edge.

[0009] The center of the partition is provided with a center hole, and the air holes of the partition are arranged around the center hole; the upper end of the drive shaft passes through the center hole, and the drive shaft is equipped with a limiting piece for clamping the upper end surface of the partition.

[0010] The bottom of the driving shaft is provided with a groove with an opening facing the through hole of the installation cavity.

[0011] A mounting hole is provided on the top of the mounting cavity, and a pressing cover is matched with the mounting hole to press the top of the shell.

[0012] A bidet, comprising a bidet body, on which a water diversion valve and a nozzle assembly are provided; the water diversion valve is fixed in the bidet body, comprises a water diversion valve body and a water diversion valve core, the water diversion valve body having a water inlet end and at least two water outlet ends, the water diversion valve core being fitted on the water diversion valve body and controlling whether the water inlet end of the water diversion valve body is connected to each water outlet end; the nozzle assembly comprises a plurality of nozzles respectively connected to each water outlet end of the water diversion valve, each nozzle being fitted on the bidet body; each water outlet end of the water diversion valve is fitted with an above-mentioned bidet anti-siphon device, and the perforations of each of the above-mentioned bidet anti-siphon devices are respectively connected to each water outlet end of the water diversion valve.

[0013] The installation body of each bidet anti-siphon device is integrally formed with the water diversion valve body of the water diversion valve.

[0014] The bidet body is further provided with a water mixing valve, and the mixed water outlet end of the water mixing valve is communicated with the water inlet end of the water diversion valve.

[0015] After adopting the above scheme, when the anti-siphon device of the bidet of the present invention is in normal use, if water flows through the bidet pipeline, the blocking member moves upward under the action of the water pressure in the bidet pipeline, so that the blocking member cuts off the communication between the water through hole and the air vent, thereby preventing water leakage; and when no water flows into the bidet, the blocking member is no longer affected by the water pressure in the bidet pipeline, so the elastic member drives the blocking member to move downward, so that the air vent and the water through hole are connected, and the outside air enters the bidet pipeline through the air vent. The amount of air entering is greater than the amount required for siphoning, thereby preventing the bidet pipeline from siphoning and avoiding the problem of water backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the bidet of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The structure of the bidet of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 It is a partial structural schematic diagram of the bidet of the present invention;

[0019] Figure 4 It is a partial cross-sectional view of the bidet of the present invention;

[0020] Figure 5 is an exploded view of the anti-siphon assembly of the present invention;

[0021] Figure 6 A cross-sectional view of the anti-siphon assembly of the present invention Figure 1 (The air vent is connected to the water vent);

[0022] Figure 7 A cross-sectional view of the anti-siphon assembly of the present invention Figure 2 (The air vent and water hole are not connected);

[0023] Description of labels:

[0024] Installation body 1, installation cavity 11, through hole 111, installation hole 112, pressure cover 12,

[0025] Anti-siphon component 2,

[0026] Shell 21, water hole 211, vent hole 212, tapered hole 213, spacer 214, air hole 2141, center hole 2142, annular groove 215,

[0027] Blocking member 22, driving shaft 221, annular edge 2211, annular groove 2212, groove 2213, sealing ring 222, limiting member 223,

[0028] Elastic member 23, spring 231,

[0029] Housing sealing ring 24,

[0030] Bidet body 3, upper cover 31, lower cover 32,

[0031] Water diversion valve 4, water diversion valve body 41, water inlet end 411, water outlet end 412, water diversion valve core 42,

[0032] Nozzle assembly 5, first cleaning nozzle 51, second cleaning nozzle 52, self-cleaning nozzle 53,

[0033] Mixing valve 6. DETAILED DESCRIPTION

[0034] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0035] like Figures 4 to 7As shown, the present invention discloses an anti-siphon device for a bidet, which includes a mounting body 1 and an anti-siphon assembly 2 installed in the mounting body 1; wherein a mounting cavity 11 is formed in the mounting body 1, and a through-hole 111 is provided at the bottom of the mounting cavity 11 for connecting to the bidet pipeline; the anti-siphon assembly 2 includes a shell 21, a blocking member 22 and an elastic member 23, the shell 21 is installed in the mounting cavity 11, the bottom of the inner cavity of the shell 21 is provided with a water hole 211 communicating with the through-hole 111, and the top of the inner cavity of the shell 21 is provided with an air vent 212 communicating with the outside atmosphere, the blocking member 22 can be moved up and down to cooperate in the inner cavity of the shell 21 and control whether the air vent 212 and the water vent 211 are connected or not, the elastic member 23 is fitted in the inner cavity of the shell 1 and the elastic member 23 is used to drive the blocking member 22 to move downward so that the air vent 212 is connected to the water vent 211.

[0036] Cooperate Figure 6 and Figure 7 As shown, the inner cavity of the shell 21 may be provided with a tapered hole 213 with a diameter that gradually decreases from bottom to top. The tapered hole 213 is located between the air vent 212 and the water hole 211 and is connected to the air vent 212 and the water hole 211. The blocking member 22 includes a driving shaft 221 and a sealing ring 222 that cooperates with the driving shaft 221. The driving shaft 221 can be moved up and down and inserted into the inner cavity of the shell 21. The sealing ring 222 movably contacts the inner wall of the tapered hole 213 to open and close the tapered hole 213, thereby controlling whether the air vent 212 and the water hole 211 are connected. Figures 4 to 7 As shown, the driving shaft 221 is provided with an outwardly protruding ring edge 2211 , and a peripheral wall of the ring edge 2211 is provided with an annular groove 2212 for the sealing ring 222 to be sleeved and engaged. The sealing ring 222 is sleeved in the annular groove 2212 .

[0037] Cooperate Figures 4 to 7 As shown, a spacer 214 may be provided in the vent hole 212 of the housing 21, the outer edge of the spacer being connected to the inner edge of the vent hole 212, and a plurality of air holes 2141 being provided on the spacer 214 so that the vent hole 212 communicates with the outside atmosphere; and the elastic member 23 is a spring 231, the upper and lower ends of the spring 231 being against the spacer 214 and the ring edge 2211 of the drive shaft 221, so that the spring 231 can drive the drive shaft 221 to drive the sealing ring 222 to move downward, thereby opening the tapered hole 213 and communicating the vent hole 212 with the water hole 211. Figures 4 to 7 As shown, the center of the partition 214 may be provided with a center hole 2142, and the air holes 2141 are arranged around the center hole 2142. The upper end of the drive shaft 221 passes through the center hole 2142, and the drive shaft 221 is equipped with a limiter 223 for clamping the upper end surface of the partition 214. In this way, the limiter 223 can prevent the drive shaft 221 from moving down and falling off; Figures 5 to 7As shown, the limiting member 223 can be a C-shaped clamping ring clamped on the driving shaft 221.

[0038] Cooperate Figure 3 and 4 As shown, a mounting hole 112 may be provided on the top of the mounting cavity 11 for the anti-siphon component 2 to pass through; the mounting hole 112 is equipped with a pressure cover 12 that presses the top of the shell 21 to prevent the anti-siphon component 2 from falling out of the mounting cavity 11 due to water pressure; a shell sealing ring 24 is provided between the shell 21 and the inner wall of the mounting cavity 11 to prevent water leakage between the shell 21 and the inner wall of the mounting cavity 11, and the shell sealing ring 24 can be placed in the annular groove 215 on the outer wall of the shell 21.

[0039] The working principle of the anti-siphon device for bidet of the present invention is as follows: the through hole 111 of the mounting body 1 of the anti-siphon device for bidet of the present invention is in communication with the bidet pipeline. In normal use, if water flows through the bidet pipeline, the water in the bidet pipeline will flow into the housing 21 through the through hole 11 and exert an upward force on the blocking member 22, so that the blocking member 22 will move upward under the action of the water pressure in the bidet pipeline, thereby causing the blocking member 22 to cut off the water hole 211 and the vent hole 21. 2, preventing water from leaking out of the vent hole 212; and when there is no water in the bidet, the blocking member 22 is no longer affected by the water pressure of the bidet pipeline, and the elastic member 23 drives the blocking member 22 downward to make the vent hole 212 communicate with the water hole 211, and the outside air enters the bidet pipeline from the vent hole 211. The amount of air entering is greater than the amount required for siphoning, thereby preventing the bidet pipeline from siphoning and avoiding the problem of water backflow. Figure 4 、 Figure 6 and Figure 7 As shown, the bottom of the drive shaft 221 is provided with a groove 2213 with an opening facing the through-hole 111 of the installation cavity 11. In this way, when the water flow in the bidet pipeline flows into the housing 21 through the through-hole 111, since the groove 2213 faces the through-hole 111 of the installation cavity 11, the water flow enters the housing 21 and is gathered in the groove 2213, so that the drive shaft 221 can move upward faster.

[0040] Cooperate Figures 1 to 7As shown, the present invention also discloses a bidet, which includes a bidet body 3, on which a water diverter valve 4 and a nozzle assembly 5 are provided; the water diverter valve 4 is fixed in the bidet body 3, and the water diverter valve 4 includes a water diverter valve body 41 and a water diverter valve core 42, the water diverter valve body 41 has a water inlet end 411 and at least two water outlet ends 412, the water diverter valve core 42 is fitted on the water diverter valve body 41 and controls whether the water inlet end 411 of the water diverter valve body 41 is connected to each water outlet end 412; and the nozzle assembly 5 includes a plurality of nozzles respectively connected to each water outlet end 412 of the water diverter valve 4, each nozzle being fitted on the bidet body 1, so that whether each nozzle of the nozzle assembly 5 discharges water can be controlled by the water diverter valve 4. The bidet body 3 can be formed by splicing an upper cover 31 and a lower cover 32 together. The water diversion valve 4 can be screwed onto the bidet body 3 , and each nozzle can be connected to each water outlet of the water diversion valve through a hose.

[0041] Cooperate Figure 2 and Figure 3 As shown, the nozzle assembly 5 can have three nozzles, namely a first cleaning nozzle 51, a second cleaning nozzle 52 and a self-cleaning nozzle 53. The first cleaning nozzle 51 and the second cleaning nozzle 52 are arranged side by side, and the self-cleaning nozzle 53 is arranged above the first cleaning nozzle 51 and the second cleaning nozzle 52. The first cleaning nozzle 51 and the second cleaning nozzle 52 are used to clean the user, and the self-cleaning nozzle 53 is used to clean the first cleaning nozzle 51 and the second cleaning nozzle 52; and the water diverter valve 4 is a one-inlet and three-outlet water diverter valve, and the water diverter valve body 41 has three water outlet ends 412. The three water outlet ends 412 of the water diverter valve body 41 are connected to the first cleaning nozzle 51, the second cleaning nozzle 52 and the self-cleaning nozzle 53 respectively. Figure 3 As shown, the bidet body 3 is also provided with a mixing valve 6, the mixed water outlet end of the mixing valve 6 is connected to the water inlet end 411 of the water diversion valve 4, and the water outlet temperature of the nozzle can be controlled by the mixing valve 6.

[0042] Cooperate Figure 3 and Figure 4 As shown, each water outlet end 412 of the water diverter valve 4 of the bidet is equipped with a bidet anti-siphon device as described in any one of claims 1 to 7, and the perforations 111 of each bidet anti-siphon device are respectively connected to each water outlet end 412 of the water diverter valve 4, so that the perforations 111 of each bidet anti-siphon device are respectively connected to each water outlet pipe of the bidet, so that the problem of water backflow in each water outlet pipe of the bidet can be prevented by each bidet anti-siphon device. The mounting body 1 of each bidet anti-siphon device can be integrally formed with the water diverter valve body 41 of the water diverter valve 4, and the pressure cover 12 of each bidet anti-siphon device can be integrally formed, and the pressure cover 12 is snap-fitted with the mounting body 1.

[0043] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A bidet anti-siphon device, characterized in that: It includes a mounting body and an anti-siphon assembly; a mounting cavity is formed in the mounting body, and a through hole for connecting to the bidet pipeline is provided at the bottom of the mounting cavity; The anti-siphon assembly includes a shell, a blocking member, and an elastic member; the shell is installed in the installation cavity, the bottom of the shell cavity is provided with a water hole connected to the perforation, and the top of the shell cavity is provided with an air vent connected to the outside atmosphere; the blocking member is movable up and down in the shell cavity and controls whether the air vent and the water hole are connected; the elastic member is fitted in the shell cavity and is used to drive the blocking member downward to connect the air vent and the water hole; The inner cavity of the shell is provided with a tapered hole with a diameter that gradually decreases from bottom to top, and the tapered hole is located between the vent hole and the water hole. The blocking member includes a drive shaft and a sealing ring that fits on the drive shaft. The drive shaft is movable up and down through the inner cavity of the shell, and the sealing ring movably contacts the inner wall of the tapered hole. The drive shaft is provided with an outwardly protruding ring edge, the peripheral wall of the ring edge is provided with an annular groove, and the sealing ring is placed in the annular groove; A spacer is provided in the vent hole, the outer edge of the spacer is connected to the inner edge of the vent hole, and a plurality of air holes are provided on the spacer; the elastic member is a spring, the upper and lower ends of the spring abut against the spacer and the ring edge; The bottom of the drive shaft is provided with a groove with an opening facing downwards, and the groove is directly opposite to the through hole of the installation cavity; A mounting hole is provided on the top of the mounting cavity, and a pressing cover is matched with the mounting hole to press the top of the shell.

2. The anti-siphon device for a bidet according to claim 1, wherein: The center of the partition is provided with a center hole, and the air holes of the partition are arranged around the center hole; the upper end of the drive shaft passes through the center hole, and the drive shaft is equipped with a limiting piece for clamping the upper end surface of the partition.

3. A bidet, comprising a bidet body, the bidet body being provided with a water diverter valve and a nozzle assembly; the water diverter valve being fixed to the bidet body, the water diverter valve comprising a water diverter valve body and a water diverter valve core, the water diverter valve body having a water inlet end and at least two water outlet ends, the water diverter valve core being engaged with the water diverter valve body and controlling whether the water inlet end of the water diverter valve body is connected to each water outlet end; the nozzle assembly comprising a plurality of nozzles respectively connected to each water outlet end of the water diverter valve, each nozzle being engaged with the bidet body; and characterized in that: Each water outlet of the water diversion valve is equipped with an anti-siphon device for bidet according to any one of claims 1 to 2, and the perforations of each anti-siphon device for bidet are respectively connected to each water outlet of the water diversion valve.

4. The bidet according to claim 3, wherein: The installation body of each bidet anti-siphon device is integrally formed with the water diversion valve body of the water diversion valve.

5. The bidet according to claim 3, wherein: The bidet body is further provided with a water mixing valve, and the mixed water outlet end of the water mixing valve is communicated with the water inlet end of the water diversion valve.

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