A tee valve, method of use, and sewage-lifting apparatus

Abstract

The application discloses a tee check valve, a use method and sewage lifting equipment. The tee check valve comprises a valve body, a sealing ball and an adjusting component. The valve body is provided with a first port, a second port and a third port which are communicated respectively. The sealing ball is arranged in the valve body and is adapted to switch movement between the first port and the third port. The adjusting component is arranged on the third port and is adapted to adjust the opening size of the third port so that the sealing ball can tightly fit the first port or the third port. The inlet and outlet are switched through the second port, the sealing ball switches movement between the first port and the third port to realize sealing, and the adjusting component is controlled based on the change of the flow rate, so that the sealing ball can realize reliable sealing in the water inlet state and the water outlet state, and the tee check valve still has good sealing performance after being used for multiple times.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of check valves, in particular to a three-way check valve, a use method and a sewage lifting device. BACKGROUND

[0002] The check valves on the market have various specifications, but most of the water inlets and outlets are fixed and cannot meet the use requirements of some devices, such as sewage lifting devices, oil separation devices and the like. Even if there is a three-way check valve with adjustable water inlet and outlet, the reset effect cannot be maintained for a long time, and the sealing performance will decrease after multiple uses. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art. To this end, the present application provides a three-way check valve which can ensure good sealing performance after multiple uses based on adjusting the cross-sectional area of the liquid flow passage.

[0004] The present application also provides a use method of the three-way check valve.

[0005] The present application also provides a sewage lifting device comprising the three-way check valve.

[0006] According to the three-way check valve of the first aspect of the present application, comprising:

[0007] a valve body having a first port, a second port and a third port connected respectively;

[0008] a sealing ball arranged in the valve body, the sealing ball being adapted to switch movement between the first port and the third port; and

[0009] an adjusting component arranged on the third port, the adjusting component being adapted to adjust the opening size of the third port so that the sealing ball can tightly fit the first port or the third port.

[0010] The three-way check valve of the first aspect of the present application has at least the following beneficial effects: the second port is used to switch the water inlet and outlet, the sealing ball switches movement between the first port and the third port to realize sealing, the adjusting component is controlled based on the change of flow rate, so that the sealing ball can realize reliable sealing in the water inlet state and the water outlet state, and the three-way check valve still has good sealing performance after multiple uses.

[0011] According to the three-way check valve of the first aspect of the present application, the valve body has a rolling cavity with a preset track, and the sealing ball is movably arranged in the rolling cavity, and the two ends of the rolling cavity correspond to the first port and the third port respectively.

[0012] According to a first aspect of the present invention, the three-way check valve includes an adjusting component comprising a fixed seat, an adjusting plate, and an adjusting assembly. The fixed seat is disposed on the third port, the bottom end of the fixed seat is connected to the third port, and the side wall of the fixed seat is provided with a flow hole. The adjusting assembly is adapted to drive the adjusting plate so that the adjusting plate can change the effective cross-section of the flow hole by blocking the flow hole.

[0013] According to a first aspect of the present invention, the three-way check valve includes an adjusting bolt, an adjusting nut, and a cover plate. The cover plate is fixedly disposed on the top of the fixed base, the adjusting nut is fixedly disposed on the cover plate, the adjusting bolt passes through the adjusting nut, one end of the adjusting bolt is adapted to connect to the adjusting plate, and the other end of the adjusting bolt is adapted to adjust and drive the adjusting plate to move up and down.

[0014] According to a first aspect embodiment of the present invention, the three-way check valve further includes an elastic element disposed within the fixed seat, the elastic element acting on the adjusting plate to cause the adjusting plate to have an upward resetting tendency.

[0015] According to a first aspect embodiment of the present invention, a plurality of flow holes are provided, each flow hole extending axially along the fixed seat, and each flow hole is arranged in a circumferential array on the side wall of the fixed seat with the axis of the fixed seat as a reference.

[0016] According to a first aspect embodiment of the present invention, a three-way check valve is provided on the third port, and the bottom end of the fixing seat is fixedly connected to the valve cover.

[0017] According to a first aspect of the present invention, a three-way check valve is provided between the valve cover and the fixed seat.

[0018] The method of using the three-way check valve according to a second aspect embodiment of the present invention includes the following steps:

[0019] When the liquid enters from the second port and flows out from the third port, the sealing ball blocks the first port. When the flow rate is too fast, the opening of the third port is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body, so that the sealing ball remains sealed on the first port.

[0020] When the liquid enters from the first port and flows out from the second port, the sealing port blocks the third port. When the flow rate is too slow, the opening of the third port is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body, so that the sealing ball remains sealed on the third port.

[0021] A sewage lifting device according to a third aspect of the present invention includes: a three-way check valve as described in the first aspect of the present invention.

[0022] It is easy to understand that the method of using the three-way check valve in the second aspect embodiment of the present invention and the sewage lifting equipment in the third aspect embodiment of the present invention both have the same technical effects as the three-way check valve in the first aspect embodiment, and therefore will not be described again.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a schematic diagram of the structure under the water inlet state in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure in the water outlet state in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the valve body in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the fixing base in an embodiment of the present invention.

[0029] Figure label:

[0030] 1. Valve body; 2. Seal; 3. Valve cover; 4. Fixing seat; 5. Elastic element; 6. Adjusting bolt; 7. Adjusting nut; 8. Cover plate; 9. Adjusting plate; 10. Sealing ball; 10. First port; 100. Second port; 101. Third port; 102. Rolling chamber; 103. Flow hole; 104. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application after considering the specific content of the technical solution.

[0035] Reference Figures 1 to 4 The three-way check valve of the first aspect of this application is used to change the direction of water inlet and outlet. It can prevent the sewage pump impeller from reversing when the sewage pump passes through the sewage pump during water inlet, which can easily cause the impeller to loosen and fall off. The three-way check valve includes a valve body 1, a sealing ball 10 and an adjusting component.

[0036] The valve body 1 has a first port 100, a second port 101, and a third port 102, which are respectively connected. A sealing ball 10 is disposed inside the valve body 1 and is adapted to switch between the first port 100 and the third port 102. An adjusting component is disposed on the third port 102 and is adapted to adjust the opening size of the third port 102 so that the sealing ball 10 can tightly fit the first port 100 or the third port 102. The inlet and outlet water switching is achieved through the second port 101, and the sealing ball 10 switches between the first port 100 and the third port 102 to achieve sealing. The adjusting component is controlled based on the change in flow rate, so that the sealing ball 10 can achieve reliable sealing in both the inlet and outlet states, ensuring that this three-way check valve still has good sealing performance after multiple uses.

[0037] It is understandable that the first port 100 is located on the left side, the second port 101 on the right side, and the third port 102 at the top. This three-way check valve has inlet and outlet states, with the inlet / outlet switching achieved through the second port 101. When in the inlet state, the second port 101 is the input, the third port 102 is the output, and the sealing ball 10 closes the first port 100. When in the outlet state, the first port 100 is the input, the second port 101 is the output, and the sealing ball 10 closes the third port 102.

[0038] More specifically, the sealing ball 10 moves synchronously with the liquid flow inside the valve body 1. Therefore, by controlling the size of the flow cross section of the third port 102, the speed of liquid flow can be controlled, thereby indirectly controlling the specific position of the sealing ball 10 inside the valve body 1.

[0039] In some embodiments, when in the water-inlet state, the liquid flows from the second port 101 to the third port 102. At this time, the sealing ball 10 is pushed towards the first port 100 by the liquid flow. Therefore, when the flow rate is slow, the sealing performance of the first port 100 can be guaranteed. Only when the flow rate is too fast will the sealing ball 10 tend to move towards the third port 102. At this time, the sealing ball 10 cannot completely block the first port 100. By adjusting the regulating component in time, the opening of the third port 102 is increased. At this time, the flow rate of the liquid inside the valve body 1 will decrease, so that the sealing ball 10 can continue to maintain the state of sealing the first port 100.

[0040] In some embodiments, when the water is flowing out, the liquid flows from the first port 100 to the second port 101. At this time, the sealing ball 10 is pushed to the third port 102 by the flow of liquid. Therefore, when the flow rate is high, the sealing performance of the third port 102 can be guaranteed. Only when the flow rate slows down will the sealing ball 10 tend to move towards the first port 100. At this time, the sealing ball 10 cannot completely block the third port 102. By adjusting the adjusting component in time, the opening of the third port 102 is reduced, preventing water from leaking from the third port 102, so that the sealing ball 10 can continue to maintain the state of sealing the third port 102.

[0041] In some embodiments of this application, the valve body 1 has a rolling cavity 103 with a preset trajectory, and the sealing ball 10 is movably disposed in the rolling cavity 103. The two ends of the rolling cavity 103 correspond to the first port 100 and the third port 102, respectively. More specifically, the first port 100 is arranged on the opposite left side, the second port 101 is arranged on the opposite right side, and the third port 102 is arranged at the opposite top. A branch is bypassed on the rolling cavity 103, which allows the second port 101 to communicate with the third port 102 and the first port 100, respectively. When the sealing ball 10 moves in the rolling cavity 103 and reaches one end, it will simultaneously stop at that end. The branch allows the liquid to flow normally, so that the valve body 1 has a water inlet state and a water outlet state.

[0042] In other embodiments, the adjusting component includes a fixed base 4, an electromagnetic drive, and an adjusting plate 9. The fixed base 4 is disposed on the third port 102, and its bottom end communicates with the third port 102. The side wall of the fixed base 4 is provided with a flow passage 104. The electromagnetic drive is disposed on the fixed base 4 and drives the adjusting plate 9 to move by magnetic adsorption, so that the adjusting plate 9 can change the effective cross-section of the flow passage 104 by blocking it. It is understood that in this embodiment, the degree of automation is high, and it can be used in conjunction with a flow detection component and a control module to accurately control the electromagnetic drive, thereby achieving efficient control of the adjusting plate 9 and ensuring a good sealing effect.

[0043] In some embodiments of this application, the adjusting component includes a fixed base 4, an adjusting plate 9, and an adjusting assembly. The fixed base 4 is disposed on the third port 102, and its bottom end communicates with the third port 102. The side wall of the fixed base 4 is provided with a flow hole 104. The adjusting assembly is adapted to drive the adjusting plate 9 so that the adjusting plate 9 can change the effective cross-section of the flow hole 104 by blocking it. Further, the adjusting assembly includes an adjusting bolt 6, an adjusting nut 7, and a cover plate 8. The cover plate 8 is fixedly disposed on the top of the fixed base 4, the adjusting nut 7 is fixedly disposed on the cover plate 8, and the adjusting bolt 6 passes through the adjusting nut 7. One end of the adjusting bolt 6 is adapted to connect to the adjusting plate 9, and the other end of the adjusting bolt 6 is adapted to adjust and drive the adjusting plate 9 to move up and down. Further, the adjusting assembly also includes a spring element 5, which is disposed within the fixed base 4. The spring element 5 acts on the adjusting plate 9 to give the adjusting plate 9 a tendency to return to its original position. The adjusting plate 9 is controlled by manually operating the adjusting bolt 6, thereby controlling the opening of the flow hole 104 and indirectly adjusting the sealing performance of the sealing ball 10. This method offers advantages such as cost savings and ease of operation. The fixed base 4 serves as a support platform, and both the adjusting plate 9 and the adjusting assembly are mounted on the fixed base 4. The adjusting bolt 6 and the spring element 5 cooperate to connect the adjusting plate 9, and the effects of thread pre-tightening and spring pre-tightening allow for better control of the adjusting plate 9.

[0044] Preferably, multiple flow holes 104 are provided, each flow hole 104 extends along the axial direction of the fixed seat 4, and each flow hole 104 is arranged in a circumferential array on the side wall of the fixed seat 4 with the axis of the fixed seat 4 as the reference. The adjusting plate 9 is slidably arranged along the axial direction of the fixed seat 4, thereby evenly adjusting the opening size of the third port 102 to ensure the stability of the valve body 1.

[0045] In some embodiments of this application, a valve cover 3 is provided on the third port 102, and the bottom end of the fixing seat 4 is fixedly connected to the valve cover 3. More specifically, a sealing element 2 is provided between the valve cover 3 and the fixing seat 4. Preferably, the sealing element 2 can be a sealing ring to ensure the sealing performance of the connection. Preferably, the valve cover 3 is welded to the fixing seat 4, the adjusting bolt 6 is welded to the adjusting plate 9, the adjusting nut 7 is welded to the cover plate 8, and the fixing seat 4 is welded to the cover plate 8. Preferably, the elastic element 5 is a spring, which is disposed between the fixing seat 4 and the adjusting plate 9, and the compression adjustment of the spring is achieved by turning the adjusting bolt 6.

[0046] Reference Figures 1 to 4 The method of using the three-way check valve according to the second aspect of this application can be a specific method of using the three-way check valve according to the first aspect of this application, thereby realizing a change in the inlet and outlet water direction. The method of using the three-way check valve according to the second aspect of this application includes the following steps:

[0047] When liquid enters from the second port 101 and flows out from the third port 102, the sealing ball 10 blocks the first port 100. When the flow rate is too fast, the opening of the third port 102 is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body 1, so that the sealing ball 10 is kept sealed on the first port 100.

[0048] When the liquid enters from the first port 100 and flows out from the second port 101, the sealing port blocks the third port 102. When the flow rate is too slow, the opening of the third port 102 is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body 1, so that the sealing ball 10 is kept sealed on the third port 102.

[0049] Reference Figures 1 to 4 The sewage lifting equipment of the third aspect of this application can be a sewage lifting device and an oil separator, etc. The sewage lifting device includes the three-way check valve of the first aspect of this application, which meets the design requirements of the sewage lifting device, oil separator and other equipment.

[0050] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A three-way check valve, characterized in that, include: The valve body has a first port, a second port, and a third port that are respectively connected. The valve body has a rolling cavity with a preset trajectory. The sealing ball is movably disposed in the rolling cavity. The two ends of the rolling cavity correspond to the first port and the third port, respectively. A sealing ball is disposed in the valve body, and the sealing ball is adapted to switch movement between the first port and the third port; as well as An adjusting component is disposed on the third port. The adjusting component is adapted to adjust the opening size of the third port so that the sealing ball can tightly fit the first port or the third port. The adjusting component includes a fixed base, an adjusting plate, and an adjusting assembly. The fixed base is disposed on the third port, and the bottom end of the fixed base communicates with the third port. The side wall of the fixed base is provided with a flow hole. The adjusting assembly is adapted to drive the adjusting plate so that the adjusting plate can change the effective cross-section of the flow hole by blocking the flow hole. Multiple flow holes are provided, and each flow hole extends along the axial direction of the fixed base. Each flow hole is arranged in a circumferential array on the side wall of the fixed base with the axis of the fixed base as the reference. The adjusting assembly includes an adjusting bolt, an adjusting nut, a cover plate, and a spring element. The cover plate is fixedly disposed on the top of the fixed base, the adjusting nut is fixedly disposed on the cover plate, the adjusting bolt passes through the adjusting nut, one end of the adjusting bolt is adapted to connect to the adjusting plate, and the other end of the adjusting bolt is adapted to adjust and drive the adjusting plate to move up and down. The spring element is disposed in the fixed base and acts on the adjusting plate to make the adjusting plate tend to return to its original position.

2. The three-way check valve according to claim 1, characterized in that: The third port is equipped with a valve cover, and the bottom end of the fixing seat is fixedly connected to the valve cover.

3. The three-way check valve according to claim 2, characterized in that: A sealing element is provided between the valve cover and the fixed seat.

4. A method of using the three-way check valve as described in any one of claims 1 to 3, characterized in that, Includes the following steps: When the liquid enters from the second port and flows out from the third port, the sealing ball blocks the first port. When the flow rate is too fast, the opening of the third port is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body, so that the sealing ball remains sealed on the first port. When the liquid enters from the first port and flows out from the second port, the sealing port blocks the third port. When the flow rate is too slow, the opening of the third port is adjusted by the adjusting component to control the flow rate of the liquid inside the valve body, so that the sealing ball remains sealed on the third port.

5. A sewage lifting device, characterized in that, include: The three-way check valve as described in any one of claims 1 to 3.

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