Anti-flooding water tank

Abstract

The utility model discloses an anti-flooding water tank which comprises a tank body, an overflow pipe communicated with the tank body is arranged on the side wall of the tank body, a first floating ball valve is arranged at a pipe opening of the overflow pipe, a vent pipe communicated with the tank body is arranged at the top of the tank body, and a second floating ball valve is arranged at a pipe opening of the vent pipe. Floating balls of the first floating ball valve and the second floating ball valve are positioned outside the box body; the first floating ball valve and the second floating ball valve are arranged at the pipe openings of the overflow pipe and the vent pipe respectively, and the pipe openings of the overflow pipe and the vent pipe are closed before sewage enters the overflow pipe and the vent pipe, so that external sewage is prevented from entering the water tank, and the flood-proof effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply, in particular to a flood-proof water tank. Background Art

[0002] Currently, most high-rise residential buildings are designed with secondary pressurized water supply equipment and water tanks. The water tanks in high-rise residential buildings are generally in the basement, which is lower in terrain. The water tanks are used in underground pump rooms. When the pump room is flooded, sewage will enter the water tank through the manhole, air pipe, and overflow pipe of the water tank, causing water pollution in the water tank.

[0003] A Chinese utility model patent with publication number CN215166103U discloses a water tank overflow prevention automatic early warning device, including a pump room, in which a water tank is placed, characterized in that an overflow pipe is fixedly connected to the upper part of the side wall of the water tank, a trigger plate is connected to the overflow pipe for sliding up and down, one end of the overflow pipe is fixedly connected to a drain pipe, in the initial position, the trigger plate is located below the drain pipe, a micro switch fixedly connected to the overflow pipe is arranged above the drain pipe, the micro switch is electrically connected to a flood prevention alarm system fixedly connected to the pump room, and the flood prevention alarm system is electrically connected to an external alarm; a pump room water level monitoring device is also fixedly connected to the bottom surface of the pump room, and the pump room water level monitoring device is electrically connected to the alarm.

[0004] This device can act as an overflow alarm, but it cannot prevent sewage from entering the tank when the pump room is flooded. Utility Model Content

[0005] The utility model aims to provide a flood-proof water tank in view of the problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A flood prevention box comprises a box body, a side wall of the box body is provided with an overflow pipe connected to the box body, a pipe mouth of the overflow pipe is provided with a first float valve, a top of the box body is provided with a vent pipe connected to the box body, a pipe mouth of the vent pipe is provided with a second float valve, and floats of the first float valve and the second float valve are both located outside the box body.

[0008] The utility model provides a first float valve and a second float valve at the pipe openings of the overflow pipe and the vent pipe respectively. Before sewage enters the overflow pipe and the vent pipe, the pipe openings of the overflow pipe and the vent pipe will be closed, thereby preventing external sewage from entering the water tank and achieving an anti-flooding effect.

[0009] Furthermore, a manhole is provided on the top of the tank body, and a flange cover is installed at the manhole. The manhole is used to facilitate personnel to enter and exit the water tank. The manhole is sealed by the flange cover, and the sealing effect is good, which prevents external sewage from entering the water tank through the manhole, and can further enhance the anti-flooding effect of the water tank.

[0010] Furthermore, the mouth of the overflow pipe faces downward and extends to the lower part of the box body. The mouth of the pipe faces downward, which is convenient for drainage and can also reduce the entry of dust and other debris into the water tank through the overflow pipe, thereby reducing the risk of contamination inside the water tank.

[0011] Furthermore, the opening of the air vent is arranged downwards, so as to reduce the entry of dust and other debris into the water tank through the overflow pipe, thereby reducing the risk of contamination inside the water tank.

[0012] Furthermore, the first float valve and the second float valve are both arranged in the vertical direction, thereby reducing the entry of dust and other debris into the water tank through the overflow pipe and reducing the risk of internal contamination of the water tank.

[0013] Furthermore, a bottom port of the first float valve is located below the box body.

[0014] Furthermore, the liquid levels of the first and second float valves are lower than the heights of their bottom ports when the sewage floods the bottom ports of the first and second float valves, and the first and second float valves are already closed. The first and second float valves form a closed space with the sewage water body, and it is difficult for sewage to enter the first and second float valves. After the sewage floods the water tank, the overflow pipe, the vent pipe, the first and second float valves can be kept clean.

[0015] Furthermore, a mounting platform is provided at the bottom of the box body to elevate the box body to prevent ground sewage from polluting and corroding the water tank.

[0016] Furthermore, a ladder is provided on the side wall of the box body to facilitate climbing onto the water tank for equipment maintenance.

[0017] Furthermore, a handle is provided on the flange cover to facilitate opening the manhole.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model provides a first float valve and a second float valve at the pipe openings of the overflow pipe and the vent pipe, respectively. Before sewage enters the overflow pipe and the vent pipe, the pipe openings of the overflow pipe and the vent pipe will be closed, thereby isolating external sewage from entering the water tank, ensuring water safety and avoiding water pollution in the water tank.

[0020] (2) The utility model seals the manhole through the flange cover, which has a good sealing effect and prevents external sewage from entering the water tank through the manhole, thereby further enhancing the anti-flooding effect of the water tank.

[0021] (3) The utility model arranges the first float valve and the second float valve in a vertical direction, and the liquid levels of the first float valve and the second float valve when they are closed are lower than the height of their bottom ports. When sewage floods the bottom ports of the first float valve and the second float valve, the first float valve and the second float valve are already closed, and the first float valve and the second float valve form a closed space with the sewage water body, making it difficult for sewage to enter the first float valve and the second float valve. After the sewage floods the water tank, the overflow pipe, the vent pipe, the first float valve and the second float valve can be kept clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a flood prevention water tank of the utility model;

[0023] Figure 2 This is a top view of a flood prevention water tank of the utility model;

[0024] In the figure: 1. box body; 2. overflow pipe; 3. first float valve; 4. vent pipe; 5. second float valve; 6. flange cover; 7. mounting platform; 8. ladder; 9. handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-2 As shown, this embodiment provides a flood-proof water tank, including a box body 1, a side wall of the box body 1 is provided with an overflow pipe 2 connected to the box body 1, the pipe mouth of the overflow pipe 2 is provided with a first float valve 3 for closing the pipe mouth, the top of the box body 1 is provided with a ventilation pipe 4 connected to the box body 1, the pipe mouth of the ventilation pipe 4 is provided with a second float valve 5 for closing the pipe mouth, and the floats of the first float valve 3 and the second float valve 5 are both located outside the box body 1.

[0027] The utility model respectively arranges a first float valve 3 and a second float valve 5 at the pipe openings of the overflow pipe 2 and the breathable pipe 4. Before sewage enters the overflow pipe 2 and the breathable pipe 4, the pipe openings of the overflow pipe 2 and the breathable pipe 4 will be closed, thereby preventing external sewage from entering the water tank and achieving an anti-flooding effect.

[0028] Furthermore, both the first float valve 3 and the second float valve 5 are remote-controlled float valves.

[0029] Furthermore, a manhole is provided on the top of the tank body 1, and a flange cover 6 is installed at the manhole. The manhole is used to facilitate personnel to enter and exit the water tank. The manhole is sealed by the flange cover 6, and the sealing effect is good, which prevents external sewage from entering the water tank through the manhole, and can further enhance the anti-flooding effect of the water tank.

[0030] Furthermore, the mouth of the overflow pipe 2 faces downward and extends to the lower part of the box body 1. The mouth of the pipe faces downward, which is convenient for drainage and can also reduce dust and other debris from entering the water tank through the overflow pipe 2, thereby reducing the risk of internal contamination of the water tank.

[0031] Furthermore, the mouth of the air vent 4 is arranged downward to reduce the entry of dust and other debris into the water tank through the overflow pipe 2, thereby reducing the risk of contamination inside the water tank.

[0032] Furthermore, the first float valve 3 and the second float valve 5 are both arranged in the vertical direction, thereby reducing the entry of dust and other debris into the water tank through the overflow pipe 2 and reducing the risk of internal contamination of the water tank.

[0033] Furthermore, a bottom end port of the first float valve 3 is located below the box body 1 .

[0034] Furthermore, the liquid levels of the first float valve 3 and the second float valve 5 when they are closed are lower than the height of their bottom ports. When sewage floods the bottom ports of the first float valve 3 and the second float valve 5, the first float valve 3 and the second float valve 5 have been closed, and the first float valve 3 and the second float valve 5 form a closed space with the sewage water body. It is difficult for sewage to enter the first float valve 3 and the second float valve 5. After the sewage floods the water tank, the overflow pipe 2, the air vent pipe 4, the first float valve 3 and the second float valve 5 can also be kept clean.

[0035] Furthermore, a mounting platform 7 is provided at the bottom of the box body 1 to elevate the box body 1 to prevent ground sewage from polluting and corroding the water tank.

[0036] Furthermore, a ladder 8 is provided on the side wall of the box body 1 to facilitate climbing onto the water tank for equipment maintenance.

[0037] Furthermore, a handle 9 is provided on the flange cover 6 to facilitate opening the manhole.

[0038] Working principle: when the pump room is flooded, the sewage water level rises and first contacts the float of the first float valve 3, driving the float to float up. Before the sewage water level contacts the port at the lower end of the first float valve 3, the first float valve 3 is closed. After the sewage water level contacts the port at the lower end of the first float valve 3, a closed space is formed between the sewage water level and the first float valve 3, and the sewage cannot enter the first float valve 3. The sewage water level continues to rise and contacts the float of the second float valve 5, driving the float to float up. Before the sewage water level contacts the port at the lower end of the second float valve 5, the second float valve 5 is closed. After the sewage water level contacts the port at the lower end of the second float valve 5, a closed space is formed between the sewage water level and the second float valve 5, and the sewage cannot enter the second float valve 5. After the sewage completely submerges the water tank, the manhole is also sealed by the flange cover 6, thereby achieving the flood prevention effect of the entire box body 1.

Claims

1. A flood prevention tank, characterized in that: It includes a box body, a side wall of the box body is provided with an overflow pipe connected to the box body, the pipe mouth of the overflow pipe is provided with a first float valve, the top of the box body is provided with a ventilation pipe connected to the box body, the pipe mouth of the ventilation pipe is provided with a second float valve, and the floats of the first float valve and the second float valve are both located outside the box body.

2. A flood prevention water tank as claimed in claim 1, characterized in that: A manhole is provided on the top of the box body, and a flange cover is installed at the manhole.

3. A flood prevention water tank as claimed in claim 1, characterized in that: The pipe opening of the overflow pipe faces downward and extends to the lower part of the box body.

4. A flood prevention water tank as claimed in claim 1, characterized in that: The pipe opening of the vent pipe is arranged downward.

5. A flood prevention water tank as claimed in claim 1, characterized in that: The first float valve and the second float valve are both arranged in a vertical direction.

6. A flood prevention water tank as claimed in claim 1, characterized in that: The bottom end port of the first float valve is located below the box body.

7. A flood prevention water tank as claimed in claim 1, characterized in that: When the first float valve and the second float valve are closed, the liquid level heights are both lower than the bottom port heights thereof.

8. The anti-flooding water tank according to claim 1, characterized in that: A mounting platform is provided at the bottom of the box.

9. The anti-flooding water tank according to claim 1, characterized in that: The side wall of the box body is provided with a ladder.

10. A flood prevention water tank as claimed in claim 2, characterized in that: A handle is provided on the flange cover.

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