Valveless vacuum floor drain lifter

Abstract

A valveless vacuum floor drain lifter comprises a floor drain box, a floor drain cover and a floating ball, the floor drain box is hollow, the top of the floor drain box is open, a drainage port is transversely formed in the bottom of the floor drain box, a rubber ring is further arranged on the inner side of the drainage port, and the outer side of the drainage port is connected with a vacuum drainage pipeline; a plurality of small holes are formed in the surface of the floor drain cover and buckled with the top end of the floor drain box body; and the floating ball is arranged in the floor drain box body and is in a free state. The floor drain is installed on the floor of a water room such as a kitchen and a toilet in an embedded mode, the upper end face of the floor drain is slightly lower than the ground, sewage scattered to the ground in the room flows into the floor drain box body through the small holes in the floor drain cover under the action of gravity, a vacuum interface valve is not needed to control the vacuum drainage pipeline, and the vacuum drainage pipeline can be sealed by means of interaction of negative pressure in the vacuum drainage pipeline and the floating ball. And the vacuum drainage pipeline is very simple in structure, high in adaptability, low in failure rate and very convenient to use.

Description

Technical Field

[0001] This invention relates to a vacuum sanitary ware, and more particularly to a valveless vacuum floor drain lifter for collecting wastewater from the floor. Background Technology

[0002] Vacuum drainage technology, with its unique advantages, has been widely used in indoor and outdoor sewage collection and discharge. Indoor vacuum drainage applications, such as toilets, shopping malls, and kitchens, have huge demand. Existing vacuum lifters generally include a sewage storage tank, a liquid level detection mechanism, and a vacuum interface valve. When sewage flows into the sewage buffer tank by gravity, the liquid level detection mechanism detects that the sewage level in the tank has reached a high level and then opens the vacuum interface valve. The sewage is then pumped away through the vacuum interface valve until the sewage level in the tank returns to a low level. This type of vacuum lifter has a complex structure, a high failure rate, and requires space to build a partition wall to house the liquid level detection mechanism and the vacuum interface valve. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a valveless vacuum floor drain lifter. It not only does not have a liquid level detection mechanism and a vacuum interface valve, and does not require a separate space to be occupied by a partition wall, but also has a simple and reliable structure, a low failure rate, and can be installed at any location in water-using rooms such as kitchens and bathrooms, just like an ordinary floor drain, to collect scattered surface sewage.

[0004] The present invention solves the above-mentioned technical problems through the following technical means: a valveless vacuum floor drain lifter, comprising a floor drain box, a floor drain cover and a float ball, characterized in that the floor drain box is hollow, with an open top and a horizontally arranged drain outlet at the bottom, and a rubber ring is provided on the inner side of the drain outlet, and a vacuum drain pipe is connected to the outer side of the drain outlet.

[0005] The center height of the drain outlet is greater than the radius of the float.

[0006] The angle between the end face of the rubber ring and the bottom surface of the drain box is 75~90°.

[0007] The float is installed inside the drain box and is in a free state.

[0008] The buoy is made of hollow stainless steel or plastic, and its buoyancy is much greater than its weight.

[0009] The drain cover has multiple small holes on its surface and is fastened to the top of the drain box.

[0010] The valveless vacuum floor drain lifter is embedded in the floor of rooms with water usage, such as kitchens and bathrooms, with its upper surface slightly lower than the ground.

[0011] The valveless vacuum floor drain lifter allows sewage to flow from the floor drain cover into the floor drain tank. When the sewage level in the floor drain tank is lower than the starting level, the float ball adheres tightly to the rubber ring under negative pressure, blocking the vacuum drainage pipe. When the sewage level is higher than the starting level, the float ball detaches from the rubber ring under buoyancy, and the sewage in the floor drain tank is extracted by the vacuum drainage pipe.

[0012] Beneficial effects: This invention does not require a vacuum interface valve to control the vacuum drain pipe. It achieves the effect of opening the vacuum drain pipe at high liquid levels and closing it at low liquid levels by relying on the interaction between the negative pressure inside the vacuum drain pipe and the float. This invention has a simple structure, strong adaptability, low failure rate, and is very convenient to use. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention.

[0016] Figure 3 for Figure 2 An improved scheme for the cross-sectional structure of the embodiment shown. Detailed Implementation

[0017] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0019] like Figure 1 , Figure 2 As shown, this valveless vacuum floor drain lifter has a hollow floor drain box 2 with an open top and a horizontally arranged drain outlet 201 at the bottom. A rubber ring 4 is also provided inside the drain outlet, and a vacuum drain pipe is connected to the outside of the drain outlet. A float ball 3 is placed inside the floor drain box and is in a free state, and the center height of the drain outlet 201 is greater than the radius of the float ball. The surface of the floor drain cover 1 has multiple small holes, and the floor drain cover is fastened to the top of the floor drain box 2.

[0020] like Figure 3As shown, the angle between the end face of the rubber ring 4 and the bottom surface of the drain box 2 is 75~90°.

[0021] This valveless vacuum floor drain lifter is embedded in the floor of rooms with high water usage, such as kitchens and bathrooms, with its upper surface slightly below ground level. Wastewater spilled onto the floor flows into the drain tank 2 through small holes in the drain cover 1 under gravity. When the wastewater level in the drain tank 2 is lower than the activation level, the float 3 adheres tightly to the rubber ring 4 under negative pressure, sealing the vacuum drain pipe. When the wastewater level is higher than the activation level, the float detaches from the rubber ring under buoyancy, and the wastewater in the drain tank is extracted by the vacuum drain pipe.

Claims

1. A valveless vacuum floor drain lifter, comprising a floor drain housing (2), a floor drain cover (1), and a float ball (3), characterized in that: The drain box (2) is hollow, with an open top and a horizontal drain outlet (201) at the bottom. A rubber ring (4) is also provided inside the drain outlet, and a vacuum drain pipe is connected to the outside of the drain outlet.

2. The valveless vacuum floor drain lifter according to claim 1, characterized in that: The center height of the drain outlet (201) is greater than the radius of the float (3).

3. The valveless vacuum floor drain lifter according to claim 2, characterized in that: The angle between the end face of the rubber ring (3) and the bottom face of the drain box (2) is 75~90°.

4. The valveless vacuum floor drain lifter according to claim 2, characterized in that: The float (3) is placed inside the drain box (2) and is in a free state.

5. The valveless vacuum floor drain lifter according to claim 4, characterized in that: The float (3) is made of hollow stainless steel or plastic, and its buoyancy is much greater than its weight.

6. The valveless vacuum floor drain lifter according to claim 1, characterized in that: The drain cover (1) has multiple small holes on its surface and is fastened to the top of the drain box (2).

7. The valveless vacuum floor drain lifter according to claim 6, characterized in that: The valveless vacuum floor drain lifter is embedded in the floor of rooms with water usage, such as kitchens and bathrooms, with its upper surface slightly lower than the ground.

8. The valveless vacuum floor drain lifter according to claim 7, characterized in that: The valveless vacuum floor drain lifter allows ground sewage to flow from the floor drain cover (1) into the floor drain box (2). When the sewage level in the floor drain box is lower than the starting level, the float (3) adheres tightly to the rubber ring (4) under negative pressure, blocking the vacuum drainage pipe. When the sewage level is higher than the starting level, the float detaches from the rubber ring under buoyancy, and the sewage in the floor drain box (2) is extracted by the vacuum drainage pipe.

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