Drip-proof device

Abstract

The utility model discloses an anti-dripping device which comprises a box body, a water drainage pipeline is connected to the box body, a water drainage valve is arranged on the water drainage pipeline, a water outlet is formed in the end portion of the water drainage pipeline, a reducer pipe is arranged at the position, between the water drainage valve and the water outlet, of the water drainage pipeline, and the inner diameter of the reducer pipe is smaller than that of the water drainage pipeline; and the flexible container is connected to the reducer pipe. Residual water between the reducer pipe and the water outlet is sucked in through the flexible container, and the residual water can be prevented from flowing out of the water outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of waterway equipment, in particular to a device for preventing water from dripping. Background Art

[0002] The water source of conventional water discharge equipment is a water tank. When discharging normal temperature water / hot water, the drain valve is opened, and the water in the water tank flows out from the water outlet through the drain valve due to gravity. However, there is a certain distance between the waterproof valve and the end of the water outlet of the pipeline. When the user turns off the water, the drain valve is in the closed state, and there is residual water in the internal pipeline between the drain valve and the end of the water outlet. The residual water will gradually flow out from the end of the water outlet of the pipeline under the influence of gravity;

[0003] Therefore, every time water is released, water will be wasted, and water leakage will seriously affect customer experience. Utility Model Content

[0004] In view of the above-mentioned problem of residual water flowing out from the end of the existing pipeline, the present invention aims to provide a drip-proof device, which absorbs the residual water between the reducer and the water outlet through a flexible container, thereby preventing the residual water from flowing out of the water outlet.

[0005] The specific technical solutions are as follows:

[0006] A device for preventing dripping water, comprising:

[0007] A box body, the box body is connected with a drain pipe, the drain pipe is provided with a drain valve, the end of the drain pipe is a water outlet, the drain pipe is provided with a reducer between the drain valve and the water outlet, and the inner diameter of the reducer is smaller than the inner diameter of the drain pipe;

[0008] A flexible container is connected to the reducer.

[0009] In the above-mentioned anti-drip device, there are guide pipes between both ends of the reducer and the water discharge pipeline, and the pipe wall of the guide pipe is inclined.

[0010] The above-mentioned anti-drip device, wherein the water discharge pipeline is provided with a water outlet at the water outlet.

[0011] The above-mentioned anti-drip device, wherein a filter is arranged between the water discharge pipeline and the water outlet.

[0012] The above-mentioned anti-drip device, wherein the drain pipeline includes: a first pipeline, a second pipeline and a third pipeline, the first pipeline connects the water tank with the drain valve, the second pipeline connects the drain valve with the reducer, and the third pipeline connects the reducer with the water outlet.

[0013] The above-mentioned anti-drip device, wherein the second pipeline connects the drain valve with one of the guide pipes, and the third pipeline connects the other of the guide pipes with the water outlet.

[0014] The above-mentioned anti-drip device, wherein the drain valve is a solenoid valve.

[0015] The above-mentioned anti-drip device, wherein the flexible container is a silicone container.

[0016] The above-mentioned anti-drip device, wherein a fourth pipeline is connected between the flexible container and the reducer.

[0017] Compared with the prior art, the above technical solution has the following positive effects:

[0018] The utility model uses the Venturi effect. When the drain valve is opened to drain water, the flow of water drives the pressure change, so that negative pressure is generated inside the flexible container, thereby shrinking the flexible container. When the drain valve is closed, the water flow stops instantly, but the water outlet is at atmospheric pressure, which is insufficient to maintain the existing deformation constraint force of the flexible container. The flexible container begins to rebound, thereby absorbing the residual water in the pipeline between the reducer and the water outlet into the flexible container, preventing the residual water from flowing out of the water outlet, and achieving the purpose of anti-drip.

[0019] The utility model adds a variable diameter pipe, and through the Bernoulli principle, the water flow increases the pressure difference at the opening of the flexible container, thereby intensifying the deformation of the flexible container and making the water flow backflow at the water outlet better. When the water flow is still, more residual water can be absorbed, and the effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a drip-proof device of the utility model in a water-discharging state;

[0021] Figure 2 It is a schematic diagram of a water-proof device of the utility model in a water-off state;

[0022] In the attached drawings: 1. Box body; 2. Flexible container; 3. Drain pipe; 4. Drain valve; 5. Water outlet; 6. Reducer; 7. Guide pipe; 8. Water nozzle; 9. Filter; 11. First pipeline; 12. Second pipeline; 13. Third pipeline; 14. Fourth pipeline. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0024] like Figure 1 and Figure 2As shown, a device for preventing dripping of a preferred embodiment is shown, comprising: a box body 1 and a flexible container 2, a drain pipe 3 is connected to the box body 1, a drain valve 4 is provided on the drain pipe 3, an end of the drain pipe 3 is a water outlet 5, the drain pipe 3 is provided with a reducer 6 between the drain valve 4 and the water outlet 5, the inner diameter of the reducer 6 is smaller than the inner diameter of the drain pipe 3, and the flexible container 2 is connected to the reducer 6.

[0025] Furthermore, as a preferred embodiment, guide pipes 7 are provided between both ends of the reducer 6 and the drain pipe 3 , and the pipe wall of the guide pipe 7 is inclined.

[0026] Preferably, the reducer 6 and the two guide tubes 7 are an integrated structure.

[0027] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention.

[0028] The utility model also has the following implementation methods based on the above:

[0029] In further embodiments of the present invention, please continue to refer to Figure 1 and Figure 2 As shown, the water discharge pipe 3 is provided with a water outlet 8 at the water outlet 5 .

[0030] In a further embodiment of the present invention, a filter screen 9 is provided between the water discharge pipe 3 and the water outlet 8 .

[0031] In a further embodiment of the utility model, the drain pipeline 3 includes: a first pipeline 11, a second pipeline 12 and a third pipeline 13, the first pipeline 11 connects the water tank 1 with the drain valve 4, the second pipeline 12 connects the drain valve 4 with the reducer 6, and the third pipeline 13 connects the reducer 6 with the water outlet 5.

[0032] In a further embodiment of the utility model, the second pipeline 12 connects the drain valve 4 with one guide pipe 7 , and the third pipeline 13 connects the other guide pipe 7 with the water outlet 5 .

[0033] In a further embodiment of the present invention, the drain valve 4 is a solenoid valve.

[0034] In a further embodiment of the present invention, the flexible container 2 is a silica gel container.

[0035] In a further embodiment of the present invention, a fourth pipeline 14 is connected between the flexible container 2 and the reducer 6 .

[0036] The utility model uses the Venturi effect to open the drain valve 4 to drain water, and the flow of water drives the pressure change, so that negative pressure is generated inside the flexible container 2, thereby shrinking the flexible container 2; when the drain valve 4 is closed, the water flow stops instantly, but the water outlet 5 is at atmospheric pressure, which is insufficient to maintain the existing deformation constraint force of the flexible container 2, and the flexible container 2 begins to rebound, thereby absorbing the residual water in the pipeline between the reducer 6 and the water outlet 5 into the flexible container 2, preventing the residual water from flowing out of the water outlet 5, and achieving the purpose of anti-drip;

[0037] The utility model adds a reducing pipe 6, and through the Bernoulli principle, the water flow increases the pressure difference at the opening of the flexible container 2, thereby intensifying the deformation of the flexible container 2, making the water flow backflow at the water outlet 5 better. When the water flow is still, it can absorb more residual water, and the effect is better.

[0038] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing dripping, characterized in that: include: A box body, the box body is connected with a drain pipe, the drain pipe is provided with a drain valve, the end of the drain pipe is a water outlet, the drain pipe is provided with a reducer between the drain valve and the water outlet, and the inner diameter of the reducer is smaller than the inner diameter of the drain pipe; A flexible container is connected to the reducer.

2. The anti-drip device according to claim 1, characterized in that: There are guide pipes between both ends of the reducer and the water discharge pipeline, and the pipe wall of the guide pipe is inclined.

3. The anti-drip device according to claim 1, characterized in that: The water discharge pipeline is provided with a water outlet at the water outlet.

4. The anti-drip device according to claim 3, characterized in that: A filter screen is arranged between the water discharge pipeline and the water outlet.

5. The anti-drip device according to claim 2, characterized in that: The drain pipeline includes: a first pipeline, a second pipeline and a third pipeline. The first pipeline connects the box body with the drain valve, the second pipeline connects the drain valve with the reducer, and the third pipeline connects the reducer with the water outlet.

6. The anti-drip device according to claim 5, characterized in that: The second pipeline is connected to the drain valve and one of the guide pipes, and the third pipeline is connected to the other guide pipe and the water outlet.

7. The anti-drip device according to claim 1, characterized in that: The drain valve is a solenoid valve.

8. The anti-drip device according to claim 1, characterized in that: The flexible container is a silica gel container.

9. The anti-drip device according to claim 1, characterized in that: A fourth pipeline is connected between the flexible container and the reducer.

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