Float valve

Abstract

The utility model discloses a float valve which comprises a water passing hole 8 arranged on a bottom plate and a rotating shaft 4 arranged right above the water passing hole 8, a first float component and a second float component are arranged on the rotating shaft 4, and the first float component comprises a first valve plate 1-1, a second valve plate 2-3, a third valve plate 2-3 and a fourth valve plate 2-3, the first buoy 2-1 is positioned on the right upper side of the rotating shaft; one end of the first connecting rod 3-1 is fixedly connected with the first valve plate 1-1, and the other end of the first connecting rod 3-1 is fixedly connected with the first buoy 2-1; the second buoy component comprises a second valve plate 1-2 located on the lower right portion of the rotating shaft. The second buoy 2-2 is positioned on the left upper side of the rotating shaft; one end of the second connecting rod 3-2 is fixedly connected with the second valve plate 1-2, and the other end of the second connecting rod 3-2 is fixedly connected with the second buoy 2-2; the first connecting rod 3-1 and the second connecting rod 3-2 are rotationally connected with the rotating shaft 4; when the first valve plate 1-1 and the second valve plate 1-2 are closed, the water passing hole 8 is covered, so that the float valve is effectively opened and closed in a limited space, and the flow dividing effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainwater and sewage diversion, and particularly relates to a float valve. Background Art

[0002] A float valve, also known as a flow limiting valve or shutoff valve, is a self-controlled sewage interception device that utilizes a float to adjust its position. It's commonly used in rainwater and sewage diversion projects. Specifically, it's typically installed at the sewage outlet of an interception well. On sunny days, the volume of domestic sewage is relatively constant, and the water level in the well is low, preventing the float from rising. On rainy days, the water level in the interception well gradually rises with rainfall, causing the float to gradually rise and close the gate. The valve then gradually opens after the rain stops and the water level gradually drops.

[0003] While existing float valves can divert flow, their opening and closing methods are monotonous and have limited adjustable components. When the diverted wastewater contains a large amount of impurities, they can easily cause siltation on the underside of the valve disc, blocking the valve disc from opening and closing properly, affecting the diversion effect and increasing maintenance frequency.

[0004] Therefore, it is urgent to provide an improved float valve that can solve the problems of easy blockage and large size of the float valve in the prior art, realize the effective opening and closing of the float valve in a limited space, and ensure the diversion effect. Utility Model Content

[0005] The utility model aims to provide a float valve which can solve the above technical problems.

[0006] According to one aspect of the utility model, a float valve is provided, comprising a water hole 8 arranged on a bottom plate and a rotating shaft 4 directly above the bottom plate, wherein a first float component and a second float component are provided on the rotating shaft 4, wherein the first float component comprises: a first valve plate 1-1, located at the lower left of the rotating shaft; a first float 2-1, located at the upper right of the rotating shaft; a first connecting rod 3-1, one end of which is fixedly connected to the first valve plate 1-1, and the other end is fixedly connected to the first float 2-1; the second float component comprises: a second valve plate 1-2, located at the lower right of the rotating shaft; a second float 2-2, located at the upper left of the rotating shaft; a second connecting rod 3-2, one end of which is fixedly connected to the second valve plate 1-2, and the other end is fixedly connected to the second float 2-2; the first connecting rod 3-1 and the second connecting rod 3-2 are rotatably connected to the rotating shaft 4; the first valve plate 1-1 and the second valve plate 1-2 cover the water hole 8 when closed.

[0007] Preferably, the float valve further comprises: limiting members 7 symmetrically arranged on the bottom plate and respectively located below the first connecting rod 3 - 1 and the second connecting rod 3 - 2 .

[0008] Preferably, the limiting member 7 is a limiting pin.

[0009] Preferably, the first valve plate 1 - 1 and the second valve plate 1 - 2 are both semicircular hard plates, and the two valve plates have the same radius.

[0010] Preferably, it is characterized in that the first buoy component and the second buoy component are both made of stainless steel.

[0011] Preferably, outer surfaces of the first buoy member and the second buoy member are coated with a corrosion-resistant coating.

[0012] Preferably, semicircular pressure relief holes 5 are symmetrically provided on the inner sides of the first valve disc 1 - 1 and the second valve disc 1 - 2 .

[0013] Preferably, it is characterized in that a sealing rubber ring is embedded in the water hole 8.

[0014] Preferably, the first buoy 2 - 1 and the second buoy 2 - 2 have the same counterweight.

[0015] Preferably, the first connecting rod 3 - 1 and the second connecting rod 3 - 2 are provided with reinforcing ribs along the length direction.

[0016] The utility model discloses a float valve, comprising a water hole 8 arranged on a bottom plate and a rotating shaft 4 just above the water hole 8, wherein the rotating shaft 4 is provided with a first float component and a second float component, wherein the first float component comprises: a first valve plate 1-1, located at the lower left of the rotating shaft; a first float 2-1, located at the upper right of the rotating shaft; a first connecting rod 3-1, one end of which is fixedly connected to the first valve plate 1-1, and the other end of which is fixedly connected to the first float 2-1; the second float component comprises : The second valve plate 1-2 is located at the lower right side of the rotating shaft; the second buoy 2-2 is located at the upper left side of the rotating shaft; the second connecting rod 3-2 is fixedly connected to the second valve plate 1-2 at one end, and fixedly connected to the second buoy 2-2 at the other end; the first connecting rod 3-1 and the second connecting rod 3-2 are rotatably connected to the rotating shaft 4; the first valve plate 1-1 and the second valve plate 1-2 cover the water hole 8 when closed, thereby effectively opening and closing the buoy valve in a limited space to ensure the diversion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a perspective view of a float valve according to an embodiment of the present utility model;

[0019] Figure 2 This is a three-dimensional diagram of a buoy component according to an embodiment of the present utility model;

[0020] Figure 3 This is a diagram of the float valve in an open state according to an embodiment of the present utility model;

[0021] Figure 4 This is a diagram of the float valve in a closed state according to an embodiment of the present utility model;

[0022] Figure 5 is a side view of a float valve according to an embodiment of the present utility model;

[0023] Among them, 1. Valve plate; 1-1. First valve plate; 1-2. Second valve plate; 2. Float; 2-1. First Float; 2-2. Second Float; 3. Connecting rod; 3-1. First connecting rod; 3-2. Second connecting rod; 4. Rotating shaft; 5. Pressure relief hole; 6. Mounting hole; 7. Limiting mechanism; 8. Water passage. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Reference will now be made in detail to various embodiments of the present invention, examples of which are shown in the accompanying drawings and described below. For ease of interpretation and precise definition in the appended claims, the terms "upper," "lower," "inner," and "outer" are used to describe features of the exemplary embodiments shown in the drawings with reference to their positions.

[0026] Figure 1 、 Figure 5 Shows a perspective view and a side view of a float valve according to an embodiment of the present utility model. Figure 2 A three-dimensional diagram of a float component according to an embodiment of the present invention is shown. The embodiment of the present invention provides a float valve, comprising a water passage 8 provided on a bottom plate and a rotating shaft 4 directly above the water passage 8, wherein the rotating shaft 4 is provided with a first float component and a second float component, wherein the first float component comprises: a first valve plate 1-1, located at the lower left of the rotating shaft; a first float 2-1, located at the upper right of the rotating shaft; a first connecting rod 3-1, one end of which is fixedly connected to the first valve plate 1-1 and the other end of which is fixedly connected to the first float 2-1; the second float component comprises: a second valve plate 1-2, located at the lower right of the rotating shaft; a second float 2-2, located at the upper left of the rotating shaft; a second connecting rod 3-2, one end of which is fixedly connected to the second valve plate 1-2 and the other end of which is fixedly connected to the second float 2-2; the first connecting rod 3-1 and the second connecting rod 3-2 are rotatably connected to the rotating shaft 4; and the first valve plate 1-1 and the second valve plate 1-2 cover the water passage 8 when closed.

[0027] According to an embodiment of the present invention, the first buoy 2 - 1 and the second buoy 2 - 2 have the same counterweight.

[0028] In the related technology, the float valve adopts an integral circular valve plate. Although it has a diversion effect, due to the large amount of impurities in rainwater and sewage, it is easy to block the valve and affect the opening and closing function. In addition, due to the pressure difference on both sides of the valve, it is difficult to open the valve again after closing.

[0029] The embodiment of the present invention provides a split-type float valve having a pair of cross-arranged first and second float members. Based on the side of the bottom plate where the rotating shaft and the pair of float members are installed, the rotating shaft 4 is arranged directly above the water passage 8. There is a mounting hole 6 for positioning directly above the rotating shaft 4. More threaded holes are also provided around the edge of the bottom plate for installing the float valve on the wall of a intercepting well or other drainage facilities. The first and second float members use the same float counterweight and valve plates of the same size. Therefore, when the water level rises or falls, it can ensure that the first and second floats are synchronously opened and closed by the buoyancy of the first and second valve plates, thereby ensuring the normal operation of the float valve.

[0030] According to an embodiment of the present invention, the first valve plate 1 - 1 and the second valve plate 1 - 2 are both semicircular hard plates, and the two valve plates have the same radius.

[0031] In the related art, the traditional float valve opens and closes from one side. According to the embodiment of the utility model, the float valve is of a split type. During the closing process, the stroke of each valve plate is halved, so it is not easily blocked by impurities in the water and operates stably.

[0032] According to an embodiment of the present invention, the float valve further comprises: limiting members 7 symmetrically arranged on the bottom plate, respectively located below the first connecting rod 3 - 1 and the second connecting rod 3 - 2 .

[0033] According to an embodiment of the present invention, the limiting member 7 is a limiting pin.

[0034] The embodiment of the present invention further provides a pair of limit pins for limiting the lowest position of the float, ensuring that when the water level is very low, the first valve disc and the second valve disc will not be opened to an excessively large angle and thus be damaged.

[0035] Specifically, if Figure 3-Figure 4 As shown in the diagram of the open and closed states of the float valve, the operation mode of the float valve according to the embodiment of the utility model is as follows:

[0036] When the water depth is lower than the lower edge of the float, the floats on both sides fall down due to their own weight and get stuck with the limit pins, driving the valve plates on both sides to open, and the water can flow normally.

[0037] When the water level gradually rises and touches the lower edge of the float, the floats on both sides gradually rise under the action of buoyancy, driving the valve plates on both sides to gradually close. The water flow is restricted by the valve plates, and the water-passing section shrinks from both sides to the middle.

[0038] When the water level continues to rise, the floats on both sides continue to rise due to the buoyancy, driving the valve plates on both sides to completely close, and the water flow is cut off.

[0039] When the water level drops, the floats on both sides gradually drop due to the buoyancy, driving the valve plates on both sides to gradually open, the cut-off water flow gradually recovers, and the water-passing section expands from the middle to both sides.

[0040] According to an embodiment of the present invention, the feature is that the first buoy component and the second buoy component are both made of stainless steel.

[0041] According to an embodiment of the present invention, outer surfaces of the first buoy component and the second buoy component are coated with a corrosion-resistant coating.

[0042] The use of rust-proof and corrosion-resistant materials can ensure the durability of the float valve when working in sewage environments.

[0043] According to an embodiment of the present invention, semicircular pressure relief holes 5 are symmetrically provided on the inner sides of the first valve disc 1 - 1 and the second valve disc 1 - 2 .

[0044] In related technologies, when the water level in the well drops, the water pressure on both sides of the valve plate is different, causing the valve plate to be unable to open normally. After the valve plates on both sides are closed, the pressure relief hole 5 reserved in the middle can balance the pressure on both sides and enable the valve plate to open normally.

[0045] According to an embodiment of the present invention, a sealing rubber ring is embedded in the water hole 8 .

[0046] According to an embodiment of the present invention, the first connecting rod 3 - 1 and the second connecting rod 3 - 2 are provided with reinforcing ribs along the length direction.

[0047] The utility model has the following effects:

[0048] (1) When intercepting a confluent pipe containing a large amount of impurities, the float valve can be effectively opened and closed to reduce blockage and ensure the diversion effect;

[0049] (2) Reduce the weight of the float valve body, reduce the adjustment stroke of the valve plate, and enhance the working stability of the float valve.

[0050] The above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention may be implemented. Those skilled in the art will appreciate that other variations or modifications may be made based on the following description. These variations, modifications, substitutions, and variations arising from the principles and spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A float valve, comprising a water hole (8) provided on a bottom plate and a rotating shaft (4) directly above the water hole, characterized in that: The rotating shaft (4) is provided with a first buoy component and a second buoy component, wherein the first buoy component comprises: A first valve plate (1-1), located at the lower left of the rotating shaft; A first buoy (2-1) is located to the upper right of the rotating shaft; a first connecting rod (3-1), one end of which is fixedly connected to the first valve plate (1-1), and the other end of which is fixedly connected to the first buoy (2-1); The second buoy member comprises: The second valve plate (1-2) is located at the lower right side of the rotating shaft; a second buoy (2-2), located to the upper left of the rotating shaft; a second connecting rod (3-2), one end of which is fixedly connected to the second valve plate (1-2), and the other end of which is fixedly connected to the second buoy (2-2); The first connecting rod (3-1) and the second connecting rod (3-2) are rotatably connected to the rotating shaft (4); When the first valve plate (1-1) and the second valve plate (1-2) are closed, they cover the water hole (8).

2. The float valve according to claim 1, characterized in that Also includes: The limiting components (7) are symmetrically arranged on the bottom plate and are respectively located below the first connecting rod (3-1) and the second connecting rod (3-2).

3. The float valve according to claim 2, characterized in that The limiting component (7) is a limiting pin.

4. The float valve according to claim 1, characterized in that The first valve plate (1-1) and the second valve plate (1-2) are both semicircular hard plates, and the radii of the two valve plates are the same.

5. The float valve according to claim 1, characterized in that The first buoy component and the second buoy component are both made of stainless steel.

6. The float valve according to claim 5, characterized in that The outer surfaces of the first buoy member and the second buoy member are coated with a corrosion-resistant coating.

7. The float valve according to claim 1, characterized in that Semicircular pressure relief holes (5) are symmetrically arranged on the inner sides of the first valve plate (1-1) and the second valve plate (1-2).

8. The float valve according to claim 1, characterized in that A sealing rubber ring is embedded in the water hole (8).

9. The float valve according to claim 1, characterized in that The first buoy (2-1) and the second buoy (2-2) have the same counterweight.

10. The float valve according to claim 1, characterized in that The first connecting rod (3-1) and the second connecting rod (3-2) are provided with reinforcing ribs along the length direction.

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