Valve valve capable of preventing liquid dripping and liquid leakage

Abstract

The utility model provides a valve valve capable of preventing liquid dripping and liquid leakage, and belongs to the technical field of peristaltic pumps. The connector comprises a tubular connector body, a hard film is fixedly arranged at the tail end of the connector body, and the central axis of the hard film coincides with the central axis of the connector body. The hard film is provided with at least three slits. The number of the slits is at least three. Each slit extends from the center of the hard sheet film to the edge and penetrates through the hard sheet film. According to the utility model, the films are gathered together to be in a closed state under the condition of no stress; after external force is received, the film is opened outwards under the external force to form a channel. The structure is simple and installation is convenient. And the non-return valve can be closed in time when a viscous and easily-solidified medium is conveyed.

Description

Technical Field

[0001] This utility model belongs to the field of peristaltic pumps, and in particular relates to a valve that prevents dripping and leakage. Background Technology

[0002] A peristaltic pump is a special type of positive displacement pump, mainly used for fluid distribution or transportation, and widely used in industries such as pharmaceuticals, food, and chemicals. When the pump head of a peristaltic pump is working, the rollers rotate, forming a "pillow" shape of fluid in a section of pump tubing between the two rollers. The fluid is pumped by alternately squeezing and releasing the pump's elastic delivery hose; the volume of the "pillow" affects the flow rate; the rotational speed of the rollers also affects the flow rate.

[0003] The check valves currently used for peristaltic pump hoses are generally diaphragm type or spring type, with the valve core check part located in the middle position.

[0004] The purpose of this utility model is to solve two problems of existing check valves: (1) the valve core check part is in the middle part of its device, and when the valve core is closed, there will be liquid hanging on the back wall, resulting in dripping; (2) it cannot stop the flow in time when transmitting viscous and easily solidified media. Utility Model Content

[0005] In view of this, the present invention provides a valve that prevents dripping and leakage.

[0006] The present invention achieves the above-mentioned technical effects by adopting the following technical solution:

[0007] A diaphragm valve for preventing dripping and leakage includes a connector, which is tubular, and a rigid diaphragm is fixed at the end of the connector, with the rigid diaphragm coinciding with the central axis of the connector; the rigid diaphragm has slits, with at least three slits; each slit extends from the center of the rigid diaphragm to the edge and penetrates the rigid diaphragm.

[0008] Furthermore, the rigid film is made of polypropylene.

[0009] Furthermore, the edge of the rigid film is fixedly connected to the end of the connector.

[0010] Furthermore, the connector is a pagoda-shaped connector.

[0011] Furthermore, it also includes an adapter pipe; one end of the adapter pipe is threadedly connected to the pagoda connector, and the other end is fixedly connected to a rigid film.

[0012] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0013] The device uses a pagoda-shaped connector at the outlet of the hose, with the pagoda section connected to the hose. One threaded end connects to a valve, which has a rigid diaphragm at its orifice. When no force is applied, the diaphragm closes up, creating a closed state. When external force is applied, the diaphragm opens outwards, forming a channel. The structure is simple and easy to install.

[0014] Compared with conventional non-adjustable roller assemblies, this invention has the following two advantages:

[0015] (1) The diaphragm is at the end of the valve body, and there is no liquid residue or dripping on the wall;

[0016] (2) It can shut off the check valve in time when transmitting viscous and easily solidified media. Attached Figure Description

[0017] Figure 1 : is a structural schematic diagram of an embodiment of this utility model.

[0018] Figure 2 : is a cross-sectional structural schematic diagram of an embodiment of this utility model.

[0019] Figure 3 : is a bottom view of an embodiment of this utility model.

[0020] 1. Rigid film, 2. Adapter, 3. Pagoda connector (connector), 4. Flexible hose, 5. Slit. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] To facilitate the understanding of the technical solution of this patent by those skilled in the art, and to make the technical purpose, technical solution and beneficial effects of this patent clearer, and to fully support the scope of protection of the claims, the technical solution of this patent will be further and more detailed below in the form of specific cases.

[0023] Reference Figure 1 The valve in this embodiment comprises three parts: a pagoda connector, an adapter, and a rigid diaphragm. One end of the pagoda connector is inserted into the flexible tube, and the other end is provided with an external thread.

[0024] One end of the adapter has an internal thread, and the other end has a fixed rigid film. In this embodiment, four slits are formed on the rigid film, creating a cross-shaped gap that divides the rigid film into a multi-lobed structure. The internal thread of the adapter is threadedly connected to the external thread of the pagoda connector.

[0025] When the other valves on the hose are opened, the inner side of the rigid diaphragm is subjected to greater water pressure, causing the diaphragm to expand outward along the cross-shaped slits, allowing water to flow normally. When the valves are closed, the water pressure decreases, and the rigid diaphragm, due to its own restoring force exceeding the water pressure, closes and seals itself.

[0026] In this embodiment, the rigid film is made of polyethylene and has a thickness of 0.5 mm.

[0027] Furthermore, for the purpose of simplifying the description, this patent may not list some common specific implementation schemes that can be naturally conceived by a person skilled in the art after understanding the technical solution of this patent. Obviously, these schemes should also be included within the scope of protection of this patent.

[0028] The disclosure of technical details in the above-described specific embodiments may only reach a level that allows a person skilled in the art to make their own judgment. That is, for technical details not disclosed in the above-described specific embodiments, a person skilled in the art can, without any creative effort, complete the task using publicly available literature such as textbooks, reference books, papers, patents, and audio-visual products, provided that the patented technical solution is fully disclosed. Alternatively, these details may be content that a person skilled in the art can determine based on the actual situation and their common understanding. Therefore, even without disclosing these technical details, the sufficiency of disclosure of the patented technical solution will not be affected.

[0029] In summary, based on the interpretative role of the claims in this patent specification, any specific implementation that falls within the scope of the claims of this patent is within the protection scope of this patent.

Claims

1. A diaphragm valve that prevents dripping and leakage, characterized in that, The device includes a connector, which is tubular, with a rigid film fixed at the end of the connector and the rigid film coinciding with the central axis of the connector; the rigid film has slits, with at least three slits; each slit extends from the center of the rigid film to the edge and penetrates the rigid film.

2. The anti-drip and anti-leakage diaphragm valve according to claim 1, characterized in that, The rigid film is made of polypropylene.

3. The anti-drip and anti-leakage diaphragm valve according to claim 1, characterized in that, The edge of the rigid film is fixedly connected to the end of the connector.

4. The anti-drip and anti-leakage diaphragm valve according to claim 1, characterized in that, The connector is a pagoda connector.

5. A diaphragm valve for preventing dripping and leakage according to claim 4, characterized in that, It also includes an adapter pipe; one end of the adapter pipe is threaded to the pagoda connector, and the other end is fixed to a rigid film.

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