一种冲洗装置的切换阀和冲洗装置
By designing a matching seal and a nozzle diameter-changing section, the noise problem caused by air entering the switching valve during the water replenishment stage was solved, achieving smooth switching of the flushing device and reducing noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JOMOO KITCHEN & BATHROOM
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-17
AI Technical Summary
In existing zero-pressure systems, the switching valve slightly opens during the water replenishment phase, causing air to enter the jet pipe and resulting in noise problems. In particular, during the flushing phase, when the high-pressure water flow expels air, an air explosion occurs, affecting the user experience.
Design a switching valve for a flushing device, employing a movable first seal and a main body, with a through hole to form a pressure relief channel, and combining a fixing part and a limiting part to ensure smooth operation of the seal, and optimizing water flow and reducing noise through the variable diameter section and constant diameter section of the nozzle.
It effectively eliminates the interference of negative pressure on the switching action, ensures a smooth and reliable switching process, reduces flushing noise caused by air intake, and improves the user experience.
Smart Images
Figure CN224514344U_ABST
Abstract
Claims
1. A switching valve for a flushing device, comprising a valve body and a switching assembly, wherein the valve body has two water outlets; the switching assembly is located within the valve body and comprises a main body, a first sealing element, and a second sealing element, the first sealing element and the second sealing element being respectively disposed on both sides of the main body; by driving the main body to move, one of the first sealing element and the second sealing element closes the corresponding water outlet, while the other of the first sealing element and the second sealing element opens the corresponding water outlet, thereby realizing water outlet switching; characterized in that: The first sealing element is movably fitted with the main body and is provided with a plurality of through holes; when the first sealing element closes the corresponding water outlet, the through holes are blocked by the main body; when the first sealing element opens the corresponding water outlet, the first sealing element partially separates from the main body and opens at least one of the through holes.
2. A switching valve for a rinsing device according to claim 1, characterized in that: The valve body is also provided with an inlet and a switching chamber. The switching chamber connects the inlet and the outlet. The main body can rotate around the axis relative to the switching chamber. When the first sealing element closes the corresponding outlet, it cuts off the connection of the switching chamber. When it opens, it partially separates from the main body, so that the through hole connects the switching chamber and the outlet.
3. A switching valve for a rinsing device according to claim 1, characterized in that: The switching component further includes a fixing member, which is fixedly inserted through the middle of the main body; the first sealing member is sleeved on the fixing member and is clearance-fitted with the fixing member, and the second sealing member is sleeved on the fixing member and is clearance-fitted or fixedly connected with the fixing member.
4. A switching valve for a rinsing device according to claim 3, characterized in that: The fastener includes a fixing part and a first limiting part; the fixing part passes through the main body, and the first limiting part is connected to the end of the fixing part and abuts against one side of the main body; the first sealing member is sleeved outside the fixing part and has a clearance fit with it, and the second sealing member is fixedly sleeved outside the fixing part and located between the first limiting part and one side of the main body; a plurality of through holes are distributed circumferentially around the fixing part.
5. A switching valve for a rinsing device according to claim 4, characterized in that: The fixing member further includes a second limiting part; the second limiting part is disposed at one end of the fixing part away from the first limiting part, and a groove is formed between the second limiting part and the other side of the main body to restrict the movement of the first sealing member.
6. A switching valve for a rinsing device according to claim 3, characterized in that: The switching component further includes a fixing plate; the fixing plate is sleeved on the fixing member and has a clearance fit with the fixing member, and the fixing plate is fixed to the side of the first sealing member opposite to the main body; a plurality of the through holes are located on the outer periphery of the fixing plate.
7. A switching valve for a rinsing device according to claim 3, characterized in that: The first sealing element is provided with a mounting hole and a sealing strip; the mounting hole is located in the middle of the first sealing element so that the fixing element can pass through; the sealing strip is located on the side of the first sealing element opposite to the main body and extends circumferentially, the sealing strip is close to the outer periphery of the first sealing element and contacts the end face of the outlet when the first sealing element closes the corresponding outlet; a plurality of through holes are located between the mounting hole and the sealing strip.
8. A switching valve for a rinsing device according to claim 2, characterized in that: The main body has a receiving groove on the side opposite to the first sealing member. The inner wall of the receiving groove opposite to the first sealing member has two annular ribs, and the two ribs form an annular groove. When the first sealing member closes the corresponding water outlet, it abuts against the ribs. The through hole is opposite to the annular groove. When the first sealing member opens, it partially or completely separates from the ribs, so that the through hole connects the switching chamber and the water outlet.
9. A rinsing device comprising a nozzle, the nozzle being provided with a water inlet channel; characterized in that: It also includes a switching valve for a flushing device according to any one of claims 1 to 8, wherein one of the outlets of the valve body is connected to the inlet channel.
10. A device as claimed in claim 9, wherein: The nozzle has a spray port on the first side of the radial direction of the water inlet channel; the water inlet channel has an axially extending variable diameter body, and a variable diameter section and a constant diameter section are formed between the variable diameter body and the first side of the water inlet channel. The radial dimension of the variable diameter section is set to gradually decrease along the axial direction of the water inlet channel to gradually increase the flow velocity of the water. The constant diameter section is connected between the variable diameter section and the spray port so that the accelerated water flow is in a laminar flow state before being sprayed out to reduce noise.