CN-121993632-A - Flushing switching valve and flushing assembly

CN121993632ACN 121993632 ACN121993632 ACN 121993632ACN-121993632-A

Abstract

A flushing switching valve and flushing assembly comprises a valve body, wherein the valve body is provided with a switching cavity and two water outlets communicated with the switching cavity, a switching piece capable of rotating around the axial direction of the switching cavity to open and close the water outlets is arranged in the switching cavity, one water outlet is provided with a suction inlet positioned outside the switching cavity, the valve body is also provided with a fluid channel and a transmission cavity, the transmission cavity is arranged on one axial side of the switching cavity and is internally provided with a transmission piece which rotates coaxially with the switching piece, the fluid channel is communicated with the suction inlet and is internally provided with a movable sliding piece, the sliding piece is arranged opposite to the transmission piece, the transmission piece can form a pushing fit with the sliding piece when rotating to open the water outlets with the suction inlets and drive the transmission piece to push the sliding piece, and the sliding piece moves to open the fluid channel to suck the suction inlets through the fluid channel. The invention controls the on-off of the fluid channel through mechanical linkage, combines the scouring effect and the foaming function of the brush ring, simplifies the structure and reduces the cost.

Inventors

LIN XIAOFA
LIN XIAOSHAN
CHEN JINGQUAN
SU YURU
SU GUOBIN
LIN LONGCHENG
ZENG WENJUAN
YIN PING

Assignees

九牧厨卫股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260225

Claims (10)

1. The flushing switching valve comprises a valve body, wherein the valve body is provided with a switching cavity and two water outlets communicated with the switching cavity, a switching piece which can rotate around the axial direction of the switching cavity to open and close the water outlets is arranged in the switching cavity, One of the water outlets is provided with a suction inlet positioned outside the switching cavity; The valve body is also provided with a fluid channel and a transmission cavity, wherein the transmission cavity is arranged on one axial side of the switching cavity, and a transmission part which coaxially rotates with the switching part is arranged in the transmission cavity; When the switching piece rotates to open the water outlet with the suction inlet and drives the transmission piece to push the sliding piece, the sliding piece moves to open the fluid channel, and fluid is sucked into the suction inlet through the fluid channel.
2. The flushing switching valve according to claim 1, wherein the fluid channel is arranged on the side wall of the transmission cavity and extends along the direction tangential to the rotation track circle of the transmission part, the fluid channel is provided with an opening communicated to the switching cavity, the sliding part is provided with a transmission part, the transmission part passes through the opening and is positioned in the switching cavity, and the transmission part is provided with a pushing part which rotates along with the transmission part to push against the transmission part to drive the sliding part to displace.
3. The flush switching valve according to claim 2, wherein the switching member comprises a rotary shaft and a blocking portion, the rotary shaft is rotatably disposed around an axial direction of the switching chamber, one end of the rotary shaft is inserted into the transmission chamber, the blocking portion is fixedly connected with the rotary shaft, the transmission member is fixedly connected with the rotary shaft, the pushing portion extends radially along the rotary shaft, and the pushing portion is disposed to be close to or push against the transmission portion when the blocking portion blocks the other water outlet.
4. The flush switching valve of claim 1, wherein the fluid passage is provided with an inlet and an outlet, wherein the inlet and the outlet are arranged at intervals along the extending direction of the fluid passage, the outlet is communicated with the suction inlet, the sliding member is provided with a piston part, and the sliding member moves to open and close the communication between the inlet and the outlet through the piston part so as to enable the fluid passage to be correspondingly opened and closed.
5. The flush switching valve according to claim 1, wherein the fluid passage is provided with two inlet and outlet groups arranged at intervals along the extending direction of the fluid passage, each inlet and outlet group comprises an inlet and an outlet, the water outlet is correspondingly provided with two suction inlets so as to be communicated with the two outlets, the sliding piece is correspondingly provided with two piston parts which are distributed at intervals along the extending direction of the fluid passage, the sliding piece moves, and each piston part respectively opens and closes the communication between the inlet and the outlet of the corresponding group so as to enable the fluid passage to be correspondingly opened and closed.
6. A flush switch as claimed in claim 4 or claim 5, wherein the piston part is arranged to change the flow area of the inlet to adjust the opening of the inlet to regulate the flow of fluid drawn through the fluid passage by varying the stroke of the slider along the direction of extension of the fluid passage.
7. The flush switch valve of claim 1, wherein said fluid passage further comprises an elastic member disposed between said sliding member and an inner wall of said fluid passage to urge said sliding member to return to a position closing said fluid passage.
8. The flush switching valve of claim 1, wherein the water outlet is provided with a water outlet connector, a reducing section is arranged in the water outlet connector, the suction inlet is arranged at one end of the reducing section with smaller inner diameter, and after water flow is accelerated through the reducing section, negative pressure is formed around one end of the reducing section with smaller inner diameter, so that fluid is sucked through the fluid channel and by the suction inlet.
9. The flushing assembly comprises a brush ring pipeline, a flushing pipeline and a liquid storage box, and is characterized by further comprising a flushing switching valve according to any one of claims 1 to 8, wherein the water outlet provided with the suction inlet is a brush ring water outlet which is communicated with the brush ring pipeline, the other water outlet is a bottom flushing water outlet which is communicated with the flushing pipeline, and the fluid channel is provided with two inlets which are respectively communicated with the liquid storage box and the outside atmosphere.
10. A flushing assembly as claimed in claim 9 wherein the switch member is rotatable axially about itself to different positions corresponding to different operating conditions: When the switching piece rotates to the state that the bottom flushing water outlet is opened and the water outlet of the brush ring is closed, the sliding piece does not generate displacement and the fluid channel is closed, and the flushing pipeline singly discharges water; When the switching piece rotates to the state that the bottom flushing water outlet and the brush ring water outlet are both opened, the sliding piece does not generate displacement and the fluid channel is closed, and the brush ring pipeline and the flushing pipeline synchronously discharge water; When the switching piece rotates to the state that the bottom flushing water outlet is closed and the brush ring water outlet is opened, the sliding piece does not generate displacement, the fluid channel is closed, and the brush ring pipeline singly discharges water; When the switching piece continues to rotate to a preset position that the bottom flushing water outlet is closed and the brush ring water outlet is kept open, the transmission piece pushes the sliding piece to open the fluid channel, foam liquid in the liquid storage box and outside atmosphere are sucked in by negative pressure through the fluid channel and the suction inlet and mixed with the brush ring water outlet for foaming, and foaming of the brush ring pipeline is achieved.

Description

Flushing switching valve and flushing assembly Technical Field The invention relates to the field of bathrooms, in particular to a flushing switching valve and a flushing assembly. Background An existing bathroom brush ring foam shield flushing system is mainly provided with a water tank assembly, a one-inlet two-outlet switching valve and a foam box assembly, wherein a venturi tube structure is integrated inside the one-inlet two-outlet switching valve to realize foam liquid suction operation. In order to realize the working condition switching of conventional flushing and a foam shield brush ring, an electric control valve member such as an electromagnetic valve is additionally arranged between a foam box assembly and a venturi tube in the prior art, and the on-off of a foam liquid pipeline is independently controlled in a two-way valve switching mode. The technical scheme has the defects that firstly, an electric control valve switch component is additionally arranged, the hardware cost and the complexity of an assembly process of the system are directly improved, the production and later maintenance cost are relatively high, secondly, the air suction passage of the venturi tube cannot realize the on-off control of the working condition suitability, no matter the working condition of the foam shield brush ring or the conventional flushing working condition is adopted, the venturi tube corresponding to the water path of the brush ring can continuously suck air, a great amount of air is mixed in the water flow of the brush ring during the conventional flushing, the impact force of the water flow is greatly weakened, the flushing force of the brush ring is insufficient, the air suction noise is slightly large, the cleaning effect is greatly reduced, and the hydraulic performance requirements of the foam foaming function and the conventional flushing cannot be synchronously considered. Disclosure of Invention The invention mainly aims to overcome the defects of high cost of an electric control valve and insufficient scouring force caused by mixing air of a conventional scouring brush ring in the prior art, and provides a scouring switching valve and a scouring assembly, which control the on-off of a fluid channel through mechanical linkage, and have the scouring effect and the foaming function of the brush ring, so that the structure is simplified, and the cost is reduced. The invention adopts the following technical scheme: a flushing switching valve comprises a valve body, wherein the valve body is provided with a switching cavity and two water outlets communicated with the switching cavity, a switching piece capable of rotating around the axial direction of the switching cavity to open and close the water outlets is arranged in the switching cavity, and one water outlet is provided with a suction inlet positioned outside the switching cavity; The valve body is also provided with a fluid channel and a transmission cavity, wherein the transmission cavity is arranged on one axial side of the switching cavity and is internally provided with a transmission part which coaxially rotates with the switching part; When the switching piece rotates to open the water outlet with the suction inlet and drives the transmission piece to push the sliding piece, the sliding piece moves to open the fluid channel, and fluid is sucked into the suction inlet through the fluid channel. The fluid channel is arranged on the side wall of the transmission cavity and extends along the direction tangential to the rotation track circle of the transmission part, the fluid channel is provided with an opening communicated to the switching cavity, the sliding part is provided with a transmission part, the transmission part passes through the opening and is positioned in the switching cavity, and the transmission part is provided with a pushing part which rotates along with the transmission part to push against the transmission part to drive the sliding part to generate displacement. The switching piece comprises a rotating shaft and a blocking part, wherein the rotating shaft can rotate around the axial direction of the switching cavity, one end of the rotating shaft is inserted into the transmission cavity, the blocking part is fixedly connected with the rotating shaft, the transmission piece is fixedly connected with the rotating shaft, the pushing part extends radially along the rotating shaft, and the pushing part is close to or pushes the transmission part when the blocking part blocks the other water outlet. The fluid channel is provided with an inlet and an outlet which are distributed at intervals along the extending direction of the fluid channel and are communicated with the suction inlet, the sliding piece is provided with a piston part, and the sliding piece moves to open and close the communication between the inlet and the outlet through the piston part so as to enable the fluid channel to be correspondingly opened and closed