Tongue-shaped blow-down valve

Abstract

The utility model discloses a tongue type blow-down valve, including first shell, second shell, membrane flap and neck bush, the first shell is connected with the second shell, the one end of the first shell far away from the second shell is provided with a water outlet pipeline, the one end of the second shell far away from the first shell is provided with a water inlet pipeline, and the membrane flap is connected with the neck bush. The water inlet pipeline is higher than the water outlet pipeline, the neck bush is installed inside the first shell and the second shell after being assembled, the membrane flap is installed at a port, close to the water inlet pipeline, of the neck bush, and one end of the membrane flap is connected with the inner wall of the neck bush. According to the tongue-shaped blow-down valve, the influence of external impurities on the functionality of the internal structure of the one-way valve can be solved, and the blow-down valve can blow down more efficiently.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, and in particular to a tongue-shaped drain valve. Background Technology

[0002] A check valve is a valve that allows fluid to flow only through the inlet, but prevents the medium from flowing back through the outlet. It is also known as a non-return valve or check valve, and is used in hydraulic systems to prevent oil from flowing in the opposite direction, or in pneumatic systems to prevent compressed air from flowing in the opposite direction.

[0003] In modern check valves, interference from the medium is inevitable during operation. For example, particles and impurities may accumulate on the sealing surface / elastic element, or even in the corners inside the valve body, causing the valve to fail to close. Utility Model Content

[0004] The purpose of this utility model is to provide a tongue-shaped drain valve to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A tongue-shaped drain valve includes a first housing, a second housing, a diaphragm flap, and an inner liner. The first housing and the second housing are connected. A water outlet pipe is provided at the end of the first housing away from the second housing, and a water inlet pipe is provided at the end of the second housing away from the first housing. The water inlet pipe is higher than the water outlet pipe. The inner liner is installed inside the assembled first housing and the second housing. The diaphragm flap is installed at the port of the inner liner near the water inlet pipe, and one end of the diaphragm flap is connected to the inner wall of the inner liner.

[0007] Furthermore, both the inlet and outlet pipes are provided with external threads.

[0008] Furthermore, both the first housing and the second housing are provided with fixing parts on their exteriors.

[0009] Furthermore, the fixing part is provided with fixing holes.

[0010] Furthermore, the membrane flap and the inner liner are connected by means of overmolding or interference pre-compression.

[0011] Furthermore, the first housing and the second housing are threaded together.

[0012] Beneficial effects:

[0013] The tongue-shaped drain valve of this invention can solve the problem of the influence of foreign impurities on the functionality of the internal structure of the one-way valve, and can make the drain valve drain sewage more efficiently. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is the front view of the present invention;

[0016] Figure 3 for Figure 2 A sectional view;

[0017] Figure 4 This is a side view of the present invention;

[0018] Figure 5 This is an exploded view of the present invention.

[0019] The following are the labels in the diagram: 1. First shell; 2. Second shell; 3. Inner liner; 4. Diaphragm flap; 5. Outlet pipe; 6. Inlet pipe; 7. Fixing part; 8. Fixing hole. Detailed Implementation

[0020] In the description of this embodiment, it should be noted that the terms "lower," "inner," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described in detail in this application. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] A tongue-shaped drain valve, such as Figures 1 to 5As shown, it includes a first housing 1, a second housing 2, a membrane flap 4, and an inner liner 3. The first housing 1 and the second housing 2 are connected. A water outlet pipe 5 is provided at the end of the first housing 1 away from the second housing 2, and a water inlet pipe 6 is provided at the end of the second housing 2 away from the first housing 1. The water inlet pipe 6 is higher than the water outlet pipe 5. The inner liner 3 is installed inside the assembled first housing 1 and the second housing 2. The membrane flap 4 is installed at the port of the inner liner 3 near the water inlet pipe 6, and one end of the membrane flap 4 is connected to the inner wall of the inner liner 3.

[0024] Specifically, in this embodiment, the drain valve has an outlet pipe 5 located near the lower edge of the first housing 1 and an inlet pipe 6 located in the middle of the second housing 2. An inner sleeve 3 is assembled inside the first and second housings. The outer side of the inner sleeve 3 has mounting protrusions, and corresponding mounting grooves are provided on the inner walls of the first and second housings, allowing the inner sleeve 3 to be securely engaged and prevent easy movement. A diaphragm flap 4 is connected to the end of the inner sleeve 3 near the inlet pipe 6. One end of the diaphragm flap 4 is connected to the upper inner wall of the inner sleeve 3, while the other end is free. When water flows in from the inlet pipe 6, the diaphragm flap 4 opens, allowing water to flow into the outlet pipe 5. When water flows in from the outlet pipe 5, the diaphragm flap 4 closes, shutting off the inlet pipe 6, achieving a one-way flow effect. Because the inlet pipe 6 is higher than the outlet pipe 5, creating a high-inlet, low-outlet configuration, it facilitates wastewater discharge, preventing residue buildup or blockage in the inner cavity or other locations of the inner sleeve 3. Several grooves are provided on the side wall of the inner sleeve 3.

[0025] In this embodiment, the first housing 1 and the second housing 2 can be connected by threads, which facilitates disassembly and installation, and allows workers to easily remove the inner liner 3 for cleaning. Of course, the first housing 1 and the second housing 2 can also be connected by other conventional connection methods such as ultrasonic welding, and this is not limited to this method.

[0026] In this embodiment, both the inlet pipe 6 and the outlet pipe 5 are provided with external threads, which facilitate the connection and disassembly of the one-way valve with the corresponding pipe.

[0027] In this embodiment, both the first housing 1 and the second housing 2 are provided with a fixing part 7, and the fixing part 7 is provided with a fixing hole 8. The fixing part 7 and the fixing hole 8 can fix the position of the one-way valve as a whole, so as to prevent the position from being moved and affecting the operation.

[0028] In this embodiment, the diaphragm flap 4 and the inner liner 3 are connected by means of overmolding or interference pre-compression, which can ensure both the sealing of the connection between the diaphragm flap 4 and the inner liner 3 and the stability of the connection between the diaphragm flap 4 and the inner liner 3.

[0029] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tongue-shaped drain valve, characterized in that: The device includes a first housing, a second housing, a membrane flap, and an inner liner. The first housing and the second housing are connected. The first housing has an outlet pipe at the end away from the second housing, and the second housing has an inlet pipe at the end away from the first housing. The inlet pipe is higher than the outlet pipe. The inner liner is installed inside the assembled first housing and the second housing. The membrane flap is installed at the port of the inner liner near the inlet pipe, and one end of the membrane flap is connected to the inner wall of the inner liner.

2. The tongue-shaped drain valve according to claim 1, characterized in that: Both the inlet and outlet water pipes are equipped with external threads.

3. The tongue-shaped drain valve according to claim 1, characterized in that: Both the first housing and the second housing have fixing parts on their exteriors.

4. The tongue-shaped drain valve according to claim 3, characterized in that: The fixing part is provided with fixing holes.

5. The tongue-shaped drain valve according to claim 1, characterized in that: The diaphragm flap is connected to the inner liner by overmolding or interference compression.

6. The tongue-shaped drain valve according to claim 1, characterized in that: The first housing and the second housing are threaded together.

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