Fast-assembly breathing check valve for fluid conveying

Abstract

The utility model discloses a quick-assembly breathing check valve for fluid transportation, which comprises a valve body (1) and a valve core (2), the valve core comprises a circular base (21), a plurality of water passing holes (22) are uniformly distributed on the circular base, the center of the circular base is movably connected with a movable plug (23) through a connecting shaft, and the movable plug (23) is movably connected with the valve body (1). And an edge part (24) attached to the surface of the circular base is expanded on the periphery of the movable plug. The utility model has the beneficial effects that the valve core adopts the arched porous design, the surface of the valve core adopts the porous design to dredge the trend of fluid, and the fluid conveying efficiency is improved. The circular base is made of fluororubber and is good in elasticity and high in durability, and the valve element can be freely opened and closed like breathing.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid transmission conveying and control technical field especially relates to a check valve for fluid conveying. BACKGROUND

[0002] Check valve, also called non-return valve, one-way valve, backflow valve or back pressure valve, is a valve that automatically opens and closes valve disc by relying on medium flow, aiming at preventing medium backflow. Its main functions include preventing medium backflow, preventing pump and driving motor reverse rotation, and preventing container medium leakage. In the medium containing dust, the inner cavity of the traditional check valve is easy to leave the medium, which may cause the damage of the check function and affect the opening and closing after long-term use. In this case, the entire valve usually has to be replaced. The conventional valve core adopts plane sealing, which is not conducive to the flow direction of fluid, and the fluid conveying efficiency is low, and the opening and closing are not free.

[0003] For example, the utility model patent publication number CN221482743U discloses a breathing check valve, which comprises a valve body, a valve core cover plate, a positioning snap spring and a reset spring. The valve core cover plate, the positioning snap spring and the reset spring are all installed on the valve body. The positioning snap spring is fixed on the valve body. One end of the reset spring is connected with the positioning snap spring, and the other end is connected with the valve core cover plate. The patent needs to open a small hole on the valve body, which is not convenient to process. Moreover, the valve core cover plate, the positioning snap spring and the reset spring are all installed on the valve body, which is not convenient to install.

[0004] For example, the utility model patent publication number CN203214978U discloses a lifting vertical check valve, which mainly comprises a valve body, a valve cover, a guide claw, an elastic element and a valve disc. The guide claw adopts a claw type structure formed by one injection molding. The guide claw extends a guide shaft in the guide hole of the valve cover. The elastic element adopts a conical spring directly sleeved outside the guide shaft and is respectively pushed on the guide hole and the guide claw. The patent can only be used for vertical check valve, which has great limitation. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the fluid conveying efficiency of the valve core of the existing check valve is low, the opening and closing are not free, and the valve body is not convenient to disassemble. Therefore, a quick-mount breathing check valve for fluid conveying is provided.

[0006] The technical scheme of the utility model is as follows: a quick-mount breathing check valve for fluid conveying, comprising a valve body and a valve core. The valve core comprises a circular base, a plurality of water passing holes are uniformly distributed on the circular base, and an elastic arc-shaped plate extending outward is connected to the center of the circular base through a connecting shaft. The elastic arc-shaped plate will be deformed to flatten and block the water passing holes when the medium flows reversely.

[0007] In the above scheme, the connecting shaft is fixedly connected with the center of the elastic arc-shaped plate.

[0008] The circular base in the above scheme is in the shape of an arch facing the direction of the medium flow.

[0009] The valve body in the above scheme comprises an upper valve body and a lower valve body, which are connected by a flange.

[0010] The valve body in the above scheme comprises an upper valve body and a lower valve body, which are connected by a clamp.

[0011] The improvement of the above scheme is that a sealing ring cooperating with the valve core is arranged inside the valve body.

[0012] The circular base and the elastic arc-shaped plate in the above scheme are made of fluorine rubber.

[0013] The valve core is designed in an arch shape, the circular base adopts an arch structure, the surface is designed with multiple holes to guide the flow of fluid, and the fluid conveying efficiency is improved. The circular base is made of fluorine rubber, which is elastic and durable, so that the valve core can be freely opened and closed like breathing; the clamp can be easily removed during maintenance and repair, so that the valve body can be easily opened in half, the valve core can be easily replaced, the process of on-site quick online cleaning and repair is simplified, and the opening and closing function of the valve can be quickly restored. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is the explosion schematic diagram of the utility model;

[0015] Fig. 2 is the appearance schematic diagram of the utility model;

[0016] Fig. 3 is the working principle diagram of the utility model;

[0017] In the drawing, 1, valve body, 11, upper valve body, 12, lower valve body, 13, clamp, 2, valve core, 21, circular base, 22, water passing hole, 23, elastic arc-shaped plate, 3, sealing ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments of those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] As Figs. 1-3As shown in the drawings, a quick-mount breathing check valve for fluid delivery comprises a valve body 1 and a valve core 2, the valve core comprises a circular base 21, a plurality of water passing holes 22 are uniformly distributed on the circular base, a center of the circular base is connected with an outwardly extending elastic arc-shaped plate 23 through a connecting shaft, and the elastic arc-shaped plate will be deformed to be flat to block the plurality of water passing holes when the medium flows reversely.

[0020] Specifically, as shown in the drawings, the elastic arc-shaped plate can be fixedly connected with the connecting shaft through threaded cooperation or other forms, when fluid passes through the water passing holes of the circular base, the elastic arc-shaped plate is away from the circular base, the water passing holes are not blocked, and the fluid can pass normally, when part of the fluid reversely flows to the elastic arc-shaped plate, the elastic arc-shaped plate is pushed to be close to the circular base, and is deformed to be flat to block the plurality of water passing holes, thereby playing a role of cutting off the fluid. Fig. 3

[0021] As a preferred example of the utility model, the circular base is in an arch shape facing the medium flow direction, and the fluid delivery efficiency is improved.

[0022] As a preferred example of the utility model, the valve body comprises an upper valve body 11 and a lower valve body 12, and the upper valve body and the lower valve body are connected through flanges. When disassembly is needed, the valve body can be conveniently opened. Alternatively, the valve body comprises an upper valve body and a lower valve body, and the upper valve body and the lower valve body are connected through a clamp 13, and the clamp is preferably a quick-change clamp.

[0023] The valve body is internally provided with a sealing ring 3 matched with the valve core, the sealing ring is matched with an edge of the circular base to cut off or connect the fluid. The circular base and the elastic arc-shaped plate are preferably made of fluorine rubber, and have good elasticity and strong durability, so that the valve core can be freely opened and closed like breathing.

[0024] Preferably, the inner cavity of the valve body is processed to a mirror surface effect, which is helpful to resist deposition and adhesion in the dust delivery process.​

Claims

1. A quick-mount respiratory check valve for fluid delivery, comprising: The valve body (1) and the valve core (2) are characterized in that the valve core comprises a circular base (21) which is uniformly provided with a plurality of water passing holes (22), and the center of the circular base is connected with an outwardly extending elastic arc-shaped plate (23) through a connecting shaft, and the elastic arc-shaped plate will be deformed to flatten and block the water passing holes when the medium flows reversely.

2. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The connecting shaft is fixedly connected with the center of the elastic arc-shaped plate.

3. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The circular base is in an arch shape facing the medium conveying direction.

4. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The valve body comprises an upper valve body (11) and a lower valve body (12), and the upper valve body and the lower valve body are connected through flanges.

5. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The valve body comprises an upper valve body and a lower valve body, and the upper valve body and the lower valve body are connected through a clamp (13).

6. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The valve body is internally provided with a sealing ring (3) matched with the valve core.

7. A quick-mount respiratory check valve for fluid delivery as defined in claim 1, wherein: The circular base and the elastic arc-shaped plate are made of fluorine rubber.

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