Integral small sewage ejector ball valve

Abstract

The application discloses a one-piece small sewage lifter ball valve, which comprises a valve body provided with a water inlet and a water outlet at two ends respectively and a floating ball arranged in the valve body, the valve body is a one-piece structure, the water inlet is provided with a connecting flange and is connected to a ball valve base, the water outlet is a pagoda type structure, a flow channel is arranged between the water inlet and the water outlet, and a floating ball side chamber for containing the floating ball is arranged on one side of the flow channel. The one-piece small sewage lifter ball valve is simple and practical, the valve body is a one-piece structure, which is beneficial to realization of miniaturization, the water outlet adopts a pagoda type structure, thereby reducing connecting parts and facilitating assembly.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to an integrated miniature wastewater lifting station ball valve. Background Technology

[0002] Sewage lifting stations are mainly used in locations such as basements, ships, and villas where sewage cannot be discharged by gravity, such as far from drainage risers or in areas with poor drainage conditions. They collect and treat domestic wastewater from bathrooms, especially when the toilet or sink is lower than the city's drainage pipes, requiring a sewage lifting station to raise the sewage to a certain height before discharging it into the city's drainage system. Sewage lifting stations use check valves to prevent backflow. However, in small residences, kitchens, and bathrooms, the internal space of sewage lifting stations is extremely limited. Split-type ball valves are too large to meet the requirements, and their complex connection structure is inconvenient for assembly. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide an integrated small sewage lifting device ball valve to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: This application discloses an integrated small sewage lifting device ball valve, including a valve body with an inlet and an outlet at both ends, and a float ball disposed in the valve body. The valve body is an integrally formed structure. The inlet is provided with a connecting flange and connected to the ball valve base. The outlet is a pagoda-shaped structure. A flow channel is provided between the inlet and the outlet. A float ball side chamber for accommodating the float ball is provided on one side of the flow channel.

[0005] Furthermore, in the aforementioned integrated small sewage lifting ball valve, baffles protrude from both sides of the flow channel, and the two baffles form a bypass connecting to the side chamber between the corresponding valve body wall and the inner wall of the valve body.

[0006] Furthermore, in the aforementioned integrated small sewage lifting device ball valve, the distance between the two baffles is less than the diameter of the float.

[0007] Furthermore, in the aforementioned integrated small sewage lifting device ball valve, the inlet is provided with a connecting flange, and the end of the connecting flange opposite to the outlet is provided with a ball valve base. The ball valve base has an annular structure, and its inner diameter is smaller than the diameter of the float ball.

[0008] Furthermore, in the aforementioned integrated small sewage lifting device ball valve, the outer edge of the ball valve base has several connecting bosses that are connected to the connecting flange by connecting bolts.

[0009] Furthermore, in the aforementioned integrated small sewage lifting device ball valve, a first sealing ring is provided between the ball valve base 3 and the connecting flange, and the inner diameter of the first sealing ring is smaller than the diameter of the float ball.

[0010] Furthermore, in the aforementioned integrated small sewage lifting ball valve, a return rod is provided on each side of the valve body, and the end of the return rod is located in the flow channel and moves to abut against the float.

[0011] Furthermore, in the aforementioned integrated small sewage lifting ball valve, the return rod is connected to the valve body via a threaded connection and is equipped with a sealing nut.

[0012] Compared with the prior art, the advantages of this utility model are: the integrated small sewage lifting device ball valve is simple and practical, the valve body is integrally molded, which is conducive to miniaturization, and the outlet adopts a pagoda-shaped structure, which reduces connecting parts and facilitates assembly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 The figure shown is a three-dimensional schematic diagram of an integrated small sewage lifting device ball valve in a specific embodiment of this utility model.

[0015] Figure 2 The figure shown is a cross-sectional view of an integrated small sewage lifting device ball valve in a specific embodiment of this utility model.

[0016] Figure 3 The diagram shown is a schematic diagram of the installation of the return rod according to a specific embodiment of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second" and "third" are only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and defined, the terms "mounting", "connected" and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Referring Figures 1 to 3 , an integrated ball valve for small sewage lift device comprises a valve body 1 with a water inlet and a water outlet respectively arranged at both ends thereof, and a float ball 2 arranged in the valve body 1, wherein the valve body 1 is an integrally formed structure, the water inlet is provided with a connecting flange 11 and connected to a ball valve base 3, the water outlet is of a pagoda-type structure 12, a flow channel is arranged between the water inlet and the water outlet, and a float ball side chamber 13 for accommodating the float ball 2 is arranged at one side of the flow channel.

[0021] In this technical solution, one end of the water inlet of the valve body is connected to the tank of the sewage lift device, and one end of the water outlet is connected to an external sewage pipe. The sewage in the sewage lift device is discharged to the external sewage pipe through the water inlet, the flow channel and the water outlet in sequence. The surface of the float ball is a smooth spherical surface with no depressions, projections or edges and corners, which improves the smoothness of sewage circulation. When sewage enters from the water inlet, the sewage pushes the float ball to move along the bypass to the side chamber of the float ball, so that the sewage can smoothly flow along the flow channel to the water outlet for discharge; when sewage flows back, the float ball returns to the water inlet for blocking under the action of its own gravity and the impact of sewage, thereby achieving the check function; the integrated ball valve for small sewage lift device is simple and practical, the valve body is formed by integral molding, which is conducive to the realization of miniaturization, the water outlet adopts the pagoda-type structure, which reduces connecting parts and facilitates assembly.

[0022] Exemplarily, referring to Figure 2 , stop strips 14 protrude from both sides of the flow channel respectively, and a bypass communicating with the side chamber is formed between the two stop strips 14 and the corresponding inner wall of the valve body 1.

[0023] In this technical solution, the baffle and valve body are integrally formed. The bypass is guided from the inlet to the side chamber of the float ball to restrict the movement path of the float ball. When sewage enters from the inlet, the sewage pushes the float ball to move along the bypass to the side chamber, and the sewage can be smoothly discharged from the outlet along the flow channel. When sewage flows back, the float ball returns to the inlet to block it under its own weight and the impact of sewage, thus playing a backflow prevention role.

[0024] For example, see Figure 2 As shown, the distance between the two stops 14 is less than the diameter of the float 2.

[0025] In this technical solution, two baffles are set at intervals, but the distance between them is less than the diameter of the float, which restricts the float within the bypass and prevents the float from blocking the flow channel or outlet. When sewage flows back, it can act on the float.

[0026] For example, see Figures 1 to 3 As shown, the inlet is equipped with a connecting flange, and a ball valve base 3 is provided at the end of the connecting flange away from the outlet. The ball valve base 3 has an annular structure, and its inner diameter is smaller than the diameter of the float ball 2.

[0027] In this technical solution, the inner diameter of the inlet end of the valve body is larger than the diameter of the float ball, which facilitates the installation of the float ball. Then, the float ball is encapsulated inside the valve body through the ball valve base, and the interaction between the float ball and the ball valve base achieves a seal.

[0028] For example, see Figures 1 to 3 As shown, the outer edge of the ball valve base 3 has several connecting bosses that are connected to the connecting flange by connecting bolts 4.

[0029] In this technical solution, the ball valve base has an annular structure with three connecting bosses protruding from its outer wall, each with a countersunk hole to accommodate connecting bolts. The ball valve base is installed to the end of the connecting flange using connecting bolts. The connecting flange is installed at the drain outlet of the sewage lifting station's housing using conventional bolts. Conventional nuts are pre-embedded inside the sewage lifting station's housing. A stepped groove is provided at the drain outlet of the sewage lifting station's housing, corresponding to the ball valve base and the second sealing ring. After the connecting flange is installed in the sewage lifting station's housing, the valve base is hidden within the stepped groove. The second sealing ring improves the sealing between the valve body and the sewage lifting station's housing. A sealing strip protrudes from the end face of the stepped groove corresponding to the second sealing ring and abuts against the end face of the second sealing ring, improving the sealing performance at the second sealing ring.

[0030] For example, see Figure 2 and Figure 3 As shown, a first sealing ring 5 is provided between the ball valve base 3 and the connecting flange, and the inner diameter of the first sealing ring 5 is smaller than the diameter of the float ball 2.

[0031] In this technical solution, the first sealing ring improves the sealing performance between the ball valve base and the valve body, and also improves the sealing performance between the float and the ball valve base. That is, when sewage backflow acts on the float, the float and the first sealing ring come into contact and seal.

[0032] For example, see Figure 1 and Figure 3 As shown, a return rod 6 is provided on both sides of the valve body 1. The end of the return rod 6 is located in the flow channel and moves to abut against the float 2.

[0033] In this technical solution, when the sewage lifting station discharges sewage, the float ball is flushed out (the float ball enters the float ball side chamber through a bypass), the ball valve is opened, and the sewage is discharged freely. During maintenance, some sewage remaining above the float ball moves to abut against the float ball through the return rod, creating a gap between the float ball and the first sealing ring. The remaining sewage flows back into the sewage lifting station to prevent overflow or leakage. After maintenance, the return rod and the float ball are separated, and the float ball is sealed again at the top of the first sealing ring, functioning as a check valve. Return rods are provided on both sides of the valve body. Depending on the actual working conditions, the return rod on the side that is easier to operate is selected for use, while the end of the return rod on the other side (the end closest to the flow channel) is flush with the inner wall of the valve body to avoid interfering with the movement of the float ball.

[0034] For example, see Figure 1 and Figure 3 As shown, the return rod 6 is connected to the valve body 1 by a threaded connection and is equipped with a sealing nut 7.

[0035] In this technical solution, a conventional bolt can be used for the return rod, and a corresponding threaded hole is provided on the side wall of the valve body. The return rod can be screwed in or out through the threaded connection, that is, the return rod and the float can be brought closer or separated. A conventional sealing nut with an O-ring can be used to improve the sealing performance at the return rod. In addition, when the pressure in the sewage pipe is too high, the return rod can be unscrewed to reduce the water pressure in the sewage pipe and improve the safety of use.

[0036] In summary, this integrated miniature sewage lifting station ball valve is simple and practical. The valve body is integrally molded, which is conducive to miniaturization. The outlet adopts a pagoda-shaped structure, which reduces connecting parts and facilitates assembly.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A ball valve for an integrated small sewage lifting station, characterized in that, The valve body includes a valve body with an inlet and an outlet at both ends, and a float ball disposed within the valve body. The valve body is a one-piece structure. The inlet is provided with a connecting flange and connected to the ball valve base. The outlet is a pagoda-shaped structure. A flow channel is provided between the inlet and the outlet. A float ball side chamber for accommodating the float ball is provided on one side of the flow channel.

2. The integrated miniature sewage lifting device ball valve according to claim 1, characterized in that: The flow channel has baffles protruding from both sides, and the two baffles form a bypass connecting to the side chamber between the inner wall of the corresponding valve body.

3. The integrated miniature sewage lifting device ball valve according to claim 2, characterized in that: The distance between the two stops is less than the diameter of the float.

4. The integrated miniature sewage lifting device ball valve according to claim 1, characterized in that: The inlet is provided with a connecting flange, and a ball valve base is provided at the end of the connecting flange opposite to the outlet. The ball valve base has an annular structure and its inner diameter is smaller than the diameter of the float.

5. The integrated miniature sewage lifting device ball valve according to claim 4, characterized in that: The outer edge of the ball valve base has several connecting bosses that are connected to the connecting flange by connecting bolts.

6. The integrated miniature sewage lifting device ball valve according to claim 4, characterized in that: A first sealing ring is provided between the ball valve base and the connecting flange, and the inner diameter of the first sealing ring is smaller than the diameter of the float ball.

7. The integrated miniature sewage lifting device ball valve according to claim 1, characterized in that: A return rod is provided on each side of the valve body. The end of the return rod is located in the flow channel and moves to abut against the float.

8. The integrated miniature sewage lifting device ball valve according to claim 7, characterized in that: The return rod is connected to the valve body via a threaded connection and is equipped with a sealing nut.

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