Anti-siphon box and toilet flushing waterway
By introducing an anti-siphon box into the toilet flushing water path, and using an air-blocking plate to close the vent under the impact of water flow, the siphon phenomenon is solved, water resources are saved and the structure is stable, and water in the tank is not wasted.
Patent Information
- Application Number
- CN202423298804.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When traditional flush toilets use a water pump for water supply, the toilet brush hole is lower than the working water level in the tank, which can easily cause a siphon effect and lead to water waste.
The anti-siphon box is designed with an upper cover and a lower shell, and is equipped with a vent and an air-blocking plate. The air-blocking plate moves upward to close the vent under the impact of water flow, and automatically opens after the water supply stops to prevent siphoning.
It effectively prevents siphoning, avoids continuous water outflow from the tank, saves water resources, has high structural stability, and allows splashed water droplets to be collected and returned to the tank or designated location.
Smart Images
Figure CN223689028U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of anti-siphon box and closestool flushing waterway, in particular to a kind of flush type closestool flushing waterway. BACKGROUND
[0002] Traditional flush type closestool mostly relies on the potential energy of wall-entry high tank to supply water, and the energy water flows down along closestool pot surface, washes pot surface and pushes out dirt, and this layout generally integrates anti-siphon structure with water inlet and outlet in tank.
[0003] But in order to save many hidden troubles and maintenance cost problems caused by wall-entry tank, more and more water pumps are used to generate kinetic energy water, and kinetic energy water is injected into closestool brush hole through nozzle assembly, then washes pot surface and discharges dirt to realize flushing function. Since the rear end space of such closestool is narrow, the sunken tank designed separately is often designed into high and thick shape to meet the requirement of water consumption, and tank working water level and overflow water level can be higher than energy water outlet, that is, higher than nozzle assembly or closestool brush hole, so that, once flushing pipeline is filled with water, siphon phenomenon is easily generated, which causes tank water to continue to flow out, resulting in waste of a large amount of water resources. SUMMARY
[0004] The utility model provides a kind of anti-siphon box and closestool flushing waterway, prevent siphon from occurring, which overcomes the deficiencies of background art. The utility model solves the technical problems thereof by adopting the technical scheme that:
[0005] Anti-siphon box, including upper cover and lower shell, the upper cover covers the lower shell from above to form water passing cavity, the upper cover is equipped with the air hole that the water passing cavity is connected with atmosphere, the lower shell is equipped with the water inlet and water outlet that the water passing cavity is connected, the water inlet is located at the bottom of the lower shell and is vertically aligned with the air hole, further including air resistance sheet, the air resistance sheet is located in the water passing cavity and can be vertically movably arranged between the water inlet and air hole, the air resistance sheet can be moved upwards and close the air hole when water flows into the water inlet, and the air resistance sheet falls to open the air hole after stopping water supply.
[0006] In a preferred embodiment: the lower shell is internally provided with side retaining wall for guiding vertical movement of the air resistance sheet.
[0007] In a preferred embodiment: the water inlet is a vertical channel, the air resistance sheet is provided with guide column at the bottom, and the guide column is movably inserted into the water inlet.
[0008] In a preferred embodiment: the water outlet is arranged at the bottom of the lower shell.
[0009] In a preferred embodiment, the lower surface of the upper cover is provided with a raised rim around the vent hole.
[0010] In a preferred embodiment, the upper surface of the upper cover is provided with a rim, which, together with the upper surface of the upper cover, forms a water collecting groove, and the upper cover is provided with a water blocking piece above the vent hole.
[0011] In a preferred embodiment, a backwater cavity is formed between the upper cover and the lower shell, the upper cover is provided with a backflow hole communicating with the backwater cavity, and the lower shell is provided with a discharge outlet on the side wall, which communicates with the backwater cavity.
[0012] In a preferred embodiment, the upper surface of the upper cover is a slope or an arc, and the backflow hole is located at the lowest point.
[0013] In a preferred embodiment, the upper cover and the lower shell are locked by bolts.
[0014] The toilet flushing waterway comprises a water tank and a water pump, water in the water tank is delivered to a toilet flushing hole through a pipeline under the drive of the water pump, and a anti-siphon box is arranged in the pipeline, the height of the anti-siphon box is higher than the working water level of the liquid surface in the water tank, the anti-siphon box comprises an upper cover and a lower shell, the upper cover covers the lower shell from above to form a water passing cavity, the upper cover is provided with a vent hole for connecting the water passing cavity with the atmosphere, the lower shell is provided with a water inlet and a water outlet, the water inlet is located at the bottom of the lower shell and vertically aligned with the vent hole, and the anti-siphon box further comprises a gas blocking piece, which is located in the water passing cavity and can be vertically and movably arranged between the water inlet and the vent hole, the gas blocking piece can be moved upward and close the vent hole under the impact of water flow when the water inlet is supplied with water, and the gas blocking piece falls down to open the vent hole after the water supply is stopped, and water flows into the water passing cavity from the water inlet, and then flows out from the water outlet and reaches the toilet flushing hole.
[0015] Compared with the background art, the technical scheme has the following advantages:
[0016] 1. When working, the water flows through the anti-siphon box, the gas blocking piece moves upward and closes the vent hole under the impact of the water flow, and the gas blocking piece falls down rapidly under the action of gravity after the water supply is stopped, the vent hole is opened, the inside of the water passing cavity is instantaneously ventilated, and thus the siphon is prevented, so that even if the toilet flushing hole is lower than the working water level in the water tank, the water in the water tank will not be siphoned out.
[0017] 2. The side blocking wall can ensure the air blocking piece to move up and down more stably, prevent the air blocking piece from moving horizontally in the water passing cavity, and can give the water flow a guiding effect towards the air vent direction, ensuring the air blocking piece to close the air vent stably. Further, the guiding column cooperates with the water inlet to make the air blocking piece move up and down more stably.
[0018] 3. At the moment of starting water supply, if the air blocking piece has not closed the air vent yet, a small amount of water droplets may splash out from the air vent, which can be collected through the water collecting groove. In particular, the water blocking piece above the air vent can well block the splashed water droplets.
[0019] 4. The splashed water droplets can be guided back to the water tank or the closestool or other designated position by the backwater cavity. BRIEF DESCRIPTION OF DRAWINGS
[0020] The utility model will be further described below in combination with the drawings and examples.
[0021] Figure 1 An exploded schematic view of the anti-siphon box is shown.
[0022] Figure 2 A schematic view of the anti-siphon box is shown. Figure 1
[0023] Figure 3 A sectional view of the anti-siphon box is shown. Figure 1
[0024] Figure 4 A schematic view of the internal structure of the anti-siphon box is shown. Figure 1
[0025] Figure 5 A sectional view of the anti-siphon box is shown. Figure 1
[0026] Figure 6 A schematic view of the anti-siphon box is shown. Figure 1 DETAILED DESCRIPTION
[0027] Please refer to Figures 1 to 5 The anti-siphon box comprises an upper cover 10 and a lower shell 20, the upper cover 10 covers the lower shell 20 from above to form a water passing cavity 30, the upper cover 10 is provided with a vent hole 11 for connecting the water passing cavity 30 with the outside atmosphere, the lower shell 20 is provided with a water inlet 21 and a water outlet 22 for connecting with the water passing cavity 30, the water inlet 21 is located at the bottom of the lower shell and vertically aligned with the vent hole 11. The anti-siphon box further comprises a gas blocking sheet 40, which is located in the water passing cavity 30 and vertically movably arranged between the water inlet 21 and the vent hole 11, the gas blocking sheet 40 can be moved upward and close the vent hole 11 when the water inlet 21 is supplied with water, and the gas blocking sheet 40 can naturally fall down and reopen the vent hole 11 when the water supply is stopped, so that the outside air can enter the water passing cavity 30. It can be understood that once the gas enters the water passing cavity, the necessary condition for forming siphon in the waterway is destroyed.
[0028] Preferably, the lower shell 20 is internally provided with a side blocking wall 23 for guiding the vertical movement of the gas blocking sheet 40.
[0029] Preferably, the water inlet 21 is a vertical channel, the bottom of the gas blocking sheet 40 is provided with a guide column 41, the guide column 41 is movably inserted into the water inlet 21, the guide column 41 is a bracket structure, and the water inlet of the channel structure is conducive to the connection with the pipeline.
[0030] Preferably, the water outlet 22 is arranged at the bottom of the lower shell 20. In the embodiment, the water outlet 22 is also a vertical channel and is arranged obliquely.
[0031] Preferably, the lower surface of the upper cover 10 is provided with a ring of convex edges 12 around the vent hole 11.
[0032] Preferably, the upper surface of the upper cover 10 is provided with a blocking edge 13 around the upper surface, the blocking edge 13 and the upper surface of the upper cover form a water collecting groove 14, and further preferably, the upper cover 10 is provided with a water blocking sheet 15 above the vent hole 11, and the water blocking sheet and the upper surface of the upper cover are connected by a rib.
[0033] Preferably, a backwater cavity 50 is further formed between the upper cover 10 and the lower shell 20, and of course, the backwater cavity 50 and the water passing cavity 30 are independent of each other, the upper cover 10 is provided with a backflow hole 16 for connecting with the backwater cavity 50, and the lower shell 20 is provided with a discharge outlet 24 on the side wall for connecting with the backwater cavity 50.
[0034] Preferably, the upper surface of the upper cover 10 is an inclined surface or a curved surface, and the position where the backflow hole 16 is located is the lowest point. In this way, the water in the water collecting groove 14 can be fully discharged into the backwater cavity through the backflow hole, and then output from the discharge outlet.
[0035] Preferably, the upper cover 10 and the lower shell 20 are bolted together to ensure the stability of the upper cover structure under the impact of a large water flow.
[0036] In combination Figure 6 When the anti-siphon box is used in the flushing waterway of a flush toilet, the siphon phenomenon can be avoided, so that the water in the toilet tank will not continue to flow into the toilet after the water supply is stopped due to siphon. Specifically, the toilet flushing waterway includes a water tank 60 and a water pump (not shown in the figure), the water in the water tank 60 is driven by the water pump to be delivered to the toilet flushing hole 80 through the pipeline 70, and the anti-siphon box is also included. The height of the anti-siphon box is higher than the working water level height of the liquid level in the water tank 60, that is, the liquid level height after the water tank 60 normally stops water supply. The anti-siphon box is connected to the pipeline 70, and the water flow flows into the water passing cavity 30 from the water inlet 21, and then flows out of the water outlet 22 before reaching the toilet flushing hole 80.
Claims
1. An anti-siphon cassette comprising an upper cover and a lower housing, the upper cover covering the lower housing from above to form a water chamber, characterized in that: The upper cover is provided with a vent hole for connecting the water passing cavity with the atmosphere, the lower shell is provided with a water inlet and a water outlet for connecting the water passing cavity, the water inlet is located at the bottom of the lower shell and vertically aligned with the vent hole, and the lower shell further comprises a gas blocking piece, which is located in the water passing cavity and vertically movably arranged between the water inlet and the vent hole, the gas blocking piece can be moved upward and close the vent hole when the water inlet is supplied with water, and the gas blocking piece falls down and opens the vent hole when the water supply is stopped.
2. The anti-siphon cassette of claim 1, wherein: The lower shell is internally provided with a side blocking wall for guiding the vertical movement of the gas blocking piece.
3. The anti-siphon cassette of claim 2, wherein: The water inlet is a vertical channel, the bottom of the gas blocking piece is provided with a guide column, and the guide column is movably inserted into the water inlet.
4. The anti-siphon cassette of claim 1, wherein: The water outlet is arranged at the bottom of the lower shell.
5. The anti-siphon cassette of claim 1, wherein: The lower surface of the upper cover is provided with a convex edge around the vent hole.
6. The anti-siphon cassette of claim 1, wherein: The upper surface of the upper cover is provided with a blocking edge around the upper surface, the blocking edge and the upper surface of the upper cover form a water collecting groove, and the upper cover is provided with a water blocking piece above the vent hole.
7. The anti-siphon cassette of claim 6, wherein: The upper cover and the lower shell further form a backwater cavity, the upper cover is provided with a backflow hole for connecting the backwater cavity, and the lower shell is provided with a discharge port on the side wall for connecting the backwater cavity.
8. The anti-siphon cassette of claim 7, wherein: The upper surface of the upper cover is a slope or an arc surface, and the position of the backflow hole is the lowest point.
9. The anti-siphon cassette of claim 1, wherein: The upper cover and the lower shell are locked by bolts.
10. A toilet flushing waterway comprising a water tank and a water pump, water in the water tank being delivered to a toilet flushing hole through a pipeline under the drive of the water pump, characterized in that: The anti-siphon box according to any one of claims 1 to 9, the height of the anti-siphon box is higher than the working water level height of the liquid level in the water tank, the anti-siphon box is connected into the pipeline, water flows into the water passing cavity from the water inlet, and then flows out from the water outlet and reaches the toilet flushing hole.