A time-controlled waterway switching device

Abstract

The present invention proposes a time-controlled waterway switching device, comprising a valve body, a water inlet passage, waterway A, waterway B, and a float. A float is disposed within the float chamber of the valve body. A water inlet passage is disposed on one side of the valve body, communicating with the float chamber. Waterway B is disposed at the bottom of the valve body. Valve seats A and B are disposed above and below the valve body, respectively. When water flows into the water inlet passage, water pressure presses the float against valve seat B, causing water to flow out of waterway A. When water flow stops, the float rises, sealing valve seat A, causing water to flow out of waterway B, and the float chamber slowly drains water. When the float is above the water inlet of the water inlet passage, water flows into the water inlet passage, presses the float against valve seat A, causing water to flow out of waterway B. When water flow stops, the float sinks as the liquid level in the float chamber drops, causing water to flow out of waterway B. This waterway switching device can achieve time-sequential control of two water outlets by one electrically controlled solenoid valve.

Description

Technical field

[0001] The present invention relates to the technical field of valves, in particular to a time-controlled waterway switching device. [Background Technology]

[0002] In the traditional field of water channel switching, which involves multiple water channels that are opened and closed alternately, manual control or electronically controlled solenoid valves are generally used to select the water inlet. One water valve can generally only control one water outlet, and the control cost is relatively high.

[0003] To address these issues, patent application number CN201710057986.X proposes a water supply circuit device for household appliances that allows alternating water inflow from two circuits and automatically switches between them. However, this patent currently has several issues: the valve core switches by inertia, the system's initial state is unpredictable, additional sensors are required to detect the water outlet circuit, and the circuits can only be switched sequentially; a single circuit cannot be selected for two consecutive water outlets. A time-controlled water circuit switching device is now proposed. [Summary of the invention]

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a time-controlled water channel switching device that can realize one electronically controlled solenoid valve controlling two water outlets through timing changes.

[0005] To achieve the above objectives, the present invention provides a time-controlled waterway switching device, comprising a valve body, a water inlet passage, waterway A, waterway B, and a float. A float is provided in a float chamber of the valve body, a water inlet passage communicating with the float chamber is provided on one side of the valve body, waterway B is provided at the bottom of the valve body, a valve seat A communicating with waterway A is provided above the valve body, and a valve seat B communicating with waterway B is provided below the valve body. The float is movable within the float chamber. When the float rises and presses against the valve seat A, waterway A is blocked. When the float sinks and presses against the valve seat B, waterway B is blocked.

[0006] When the float is below the water inlet of the water inlet passage, water flows into the water inlet passage, and the water pressure presses the float onto the B valve seat, and water flows out of the A waterway. When the water inflow of the water inlet passage stops, the float rises to seal the A valve seat, and water flows out of the B waterway, and the float cavity slowly drains water;

[0007] If the amount of water discharged from the float chamber is small and the float is above the water inlet of the water inlet passage, water will flow into the water inlet passage and the water pressure will press the float onto the valve seat A, and water will flow out of water passage B. When the water flow into the water inlet passage stops, the float will sink as the liquid level in the float chamber drops, and water will flow out of water passage B.

[0008] Preferably, the height of the water outlet of the water channel B is greater than or equal to the height of the water inlet of the water inlet passage.

[0009] Preferably, the branch of the water channel B is provided with a drainage passage, and the outlet of the drainage passage is lower than the water inlet of the water inlet passage.

[0010] Preferably, a plurality of through grooves are provided at intervals on the outer periphery of the B valve seat, the through grooves communicating with the float chamber and the B waterway, and a central hole communicating with the drainage passage is provided at the bottom of the B valve seat.

[0011] Preferably, the outer sleeve of the B valve seat is provided with a plurality of sealing rings which respectively fit tightly with the float cavity and the valve body.

[0012] Preferably, the float includes a central float and rubber seals symmetrically installed at both ends of the central float.

[0013] Preferably, a water valve for switching between water inlet and water inlet stop states is installed on the water inlet passage.

[0014] The beneficial effects of the present invention are as follows: the present invention can realize the control of two water outlets by one electronically controlled solenoid valve through time sequence changes. By arranging a movable float in the float chamber, the float movement is controlled by the energy of the water flow in the float chamber to realize the switching of the water channel. When the water inlet and outlet are opened, the other outlet can be blocked at the same time, so that a water channel can be selected to discharge water twice in a row.

[0015] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings.

Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the structural principle of the natural state of Example 1 of the present invention;

[0017] Figure 2 Schematic diagram of the water inlet state of Example 1 of the present invention;

[0018] Figure 3 This is a schematic diagram of Example 1 of the present invention when the water inlet is stopped and the float ball is floating;

[0019] Figure 4 This is a schematic diagram of the water inflow state in the float chamber of Example 1 of the present invention, with a small amount of water being drained and the float being located above the water inlet;

[0020] Figure 5 This is a schematic diagram of Example 1 of the present invention when the water inlet is stopped and the float sinks with the liquid level;

[0021] Figure 6 1 is a left side schematic diagram of the natural state of embodiment 2 of the present invention;

[0022] Figure 7 is a top view of the structure of Example 1 of the present invention;

[0023] Figure 8 yes Figure 7 DD cross-section diagram. [Specific implementation method]

[0024] Example 1

[0025] See Figures 1 to 5 The present invention provides a time-controlled waterway switching device, comprising a valve body 1, a water inlet passage 2, a waterway A 4, a waterway B 5, and a float 6. The float 6 is disposed in a float chamber 10 of the valve body 1. A water inlet passage 2 communicating with the float chamber 10 is disposed on one side of the valve body 1. The waterway B 5 is disposed at the bottom of the valve body 1. An A valve seat 11 communicating with the waterway A 4 is disposed above the valve body 1, and a B valve seat 12 communicating with the waterway B 5 is disposed below the valve body 1. The float 6 is movable within the float chamber 10. When the float 6 floats up and presses against the A valve seat 11, the waterway A 4 is blocked. When the float 6 sinks and presses against the B valve seat 12, the waterway B 5 is blocked.

[0026] When the float 6 is below the water inlet of the water inlet passage 2, water flows into the water inlet passage 2, and the water pressure presses the float 6 onto the B valve seat 12, and water flows out of the A waterway 4. When the water flow into the water inlet passage 2 stops, the float 6 floats up to seal the A valve seat 11, and water flows out of the B waterway 5, and the float chamber 10 slowly drains water;

[0027] If the water discharge from the float chamber 10 is small and the float 6 is above the water inlet of the water inlet passage 2, water enters the water inlet passage 2, and the water pressure presses the float 6 onto the valve seat A 11, and water flows out of the B waterway 5. When the water flow into the water inlet passage 2 stops, the float 6 sinks as the liquid level in the float chamber 10 drops, and water flows out of the B waterway 5.

[0028] Furthermore, the height of the water outlet of the water channel B 5 is greater than or equal to the height of the water inlet of the water inlet passage 2 .

[0029] Further, see Figure 7 and Figure 8 The outer periphery of the B valve seat 12 is defined by a plurality of through slots 121, which connect the float chamber 10 and the B waterway 5. A central hole 122 is defined at the bottom of the B valve seat 12, which communicates with the drainage passage 3. The B valve seat 12 is sheathed with a plurality of sealing rings, which tightly fit the float chamber 10 and the valve body 1. The float 6 comprises a central float and rubber seals symmetrically mounted at both ends of the central float.

[0030] Furthermore, a water valve is installed on the water inlet passage 2 to switch between water inlet and water inlet stop states.

[0031] Example 2

[0032] See Figure 6The difference from Example 1 is that the branch of waterway B is equipped with a drainage channel 3, the outlet of which is lower than the inlet of water channel 2. In this case, the water in the float chamber cannot drain naturally, and the float is positioned below the inlet of water channel 2. Therefore, a drainage channel with a lower outlet is required to drain the water.

[0033] Working process of the present invention:

[0034] Taking Example 1 as an example, the working principle of a time-controlled waterway switching device of the present invention is as follows:

[0035] like Figure 1 As shown, in the natural state, the float 6 sinks and is located on the valve seat 12;

[0036] like Figure 2 As shown, when water enters the water inlet passage 2, the float 6 located below the water inlet of the water inlet passage 2 is pressed against the B valve seat 12 by the water pressure, thereby blocking the B waterway 5 and allowing water to flow out through the A waterway 4.

[0037] like Figure 3 As shown, when the water inlet passage 2 stops flowing, the float 6 rises and floats up, sealing the valve seat 11, blocking the waterway A 4, and the water flows out from the waterway B 5, and the float chamber 10 slowly drains the water;

[0038] like Figure 4 As shown, if the amount of water discharged from the float chamber 10 is small and the float 6 is still above the water inlet of the water inlet passage 2, the water valve is opened, water enters the water inlet passage 2, and the water pressure presses the float 6 onto the valve seat A 11, blocking the waterway A 4, and water flows out through the waterway B 5;

[0039] like Figure 5 As shown, when the water inlet valve is closed and the water inlet passage 2 stops flowing, the float 6 sinks as the liquid level in the float chamber 10 drops, and the drainage passage 3 discharges water until the water in the float chamber 10 is drained and the float 6 sinks to the valve seat B 12, returning to the state as shown in FIG. Figure 1 The natural state shown.

[0040] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A time-controlled waterway switching device, characterized in that: The invention comprises a valve body (1), a water inlet passage (2), a waterway A (4), a waterway B (5) and a float (6), wherein a float (6) is provided in a float chamber (10) of the valve body (1), a water inlet passage (2) communicating with the float chamber (10) is provided on one side of the valve body (1), a waterway B (5) is provided at the bottom of the valve body (1), a valve seat A (11) communicating with the waterway A (4) is provided above the valve body (1), and a valve seat B (11) communicating with the waterway A (4) is provided on the upper side of the valve body (1). A B valve seat (12) communicating with the B waterway (5) is provided below, and a float (6) can move in the float chamber (10). When the float (6) floats up and presses on the A valve seat (11), the A waterway (4) is blocked. When the float (6) sinks and presses on the B valve seat (12), the B waterway (5) is blocked. The height of the water outlet of the B waterway (5) is greater than or equal to the height of the water inlet of the water inlet passage (2). A drainage passage (3) is provided at the branch of the B waterway. When the float (6) is below the water inlet of the water inlet passage (2), water flows into the water inlet passage (2), and the water pressure presses the float (6) onto the valve seat B (12), and water flows out of the water passage A (4). When the water flow into the water inlet passage (2) stops, the float (6) floats up to seal the valve seat A (11), and water flows out of the water passage B (5), and the float chamber (10) slowly drains water. If the amount of water discharged from the float chamber (10) is small and the float (6) is above the water inlet of the water inlet passage (2), water flows into the water inlet passage (2) and the water pressure presses the float (6) onto the valve seat A (11), and water flows out of the water passage B (5). When the water flow into the water inlet passage (2) stops, the float (6) sinks as the liquid level in the float chamber (10) drops, and water flows out of the water passage B (5).

2. A time-controlled waterway switching device according to claim 1, characterized in that: The outer periphery of the B valve seat (12) is provided with a plurality of through grooves (121) at intervals, the through grooves (121) communicating with the float chamber (10) and the B waterway (5), and the bottom of the B valve seat (12) is provided with a central hole (122) communicating with the drainage passage (3).

3. The time-controlled waterway switching device according to claim 1, characterized in that: The B valve seat (12) is externally sleeved with a plurality of sealing rings that are tightly matched with the float chamber (10) and the valve body (1).

4. The time-controlled waterway switching device according to claim 1, characterized in that: The float (6) comprises a central float and rubber sealing bodies symmetrically mounted at both ends of the central float.

5. The time-controlled waterway switching device according to claim 1, characterized in that: The water inlet passage (2) is provided with a water valve for switching between water inlet and water inlet stop states.

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