One-way horizontal check valve

Abstract

The utility model discloses a one-way horizontal type check valve, and relates to the field of check valves, in particular to a one-way horizontal type check valve which comprises a one-way horizontal type check valve body, a valve seat is arranged in the middle of the valve body, a valve cover is arranged on the top of the valve body, a valve element matched with the valve seat is arranged on the valve cover, an annular plate is arranged on the inner wall of the valve seat, and the annular plate is arranged on the inner wall of the valve seat. The one-way horizontal check valve solves the problems that an existing one-way horizontal check valve is sealed only through the matching relation of a valve element and a valve seat, the sealing effect is poor, water backflow is prone to being caused, the valve element is opened only through the lower water pressure, and when the lower water pressure is low, the valve element can not be opened easily. And the resistance is large when the valve core is pushed open by water at the lower part.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve field, concretely is a kind of one-way horizontal check valve. BACKGROUND

[0002] Check valve is the closing part for circular valve flap and acts by its own weight and medium pressure to block the backflow of medium. It belongs to automatic valve, also known as non-return valve, one-way valve, backflow valve or isolation valve. The valve flap movement is divided into lifting type and swing type. The lifting check valve is similar in structure to the stop valve, only lacking the valve stem to drive the valve flap. Medium flows from the inlet end (swing check valve has a valve flap that is inclined and can rotate around the shaft, and its working principle is similar to that of the lifting check valve. Check valve is often used as the bottom valve of a water pumping device to prevent backflow. Check valve and stop valve are combined to play a safety isolation role.

[0003] The existing one-way horizontal check valve only relies on the cooperation of the valve core and the valve seat to complete sealing. This sealing effect is poor, which can easily cause water backflow. Moreover, the opening of the valve core relies only on the water pressure below. When the water pressure below is low, the resistance of the water below to push open the valve core is large.

[0004] Therefore, a new one-way horizontal check valve needs to be designed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a one-way horizontal check valve to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a one-way horizontal check valve, comprising a one-way horizontal check valve body, a valve seat is arranged in the middle part of the valve body, a valve cover is arranged at the top of the valve body, a valve core is arranged on the valve cover and matched with the valve seat, a ring plate is arranged on the inner wall of the valve seat, and a sealing ring is arranged on the middle upper part of the ring plate.

[0007] Preferably, a guide rod is arranged on the valve core, a limiting column is arranged on the valve cover, and a guide groove matched with the guide rod is arranged on the limiting column.

[0008] Preferably, a concave part in the shape of an inverted bowl is arranged at the bottom of the valve core.

[0009] Preferably, a sealing gasket matched with the valve seat is arranged on the valve core.

[0010] Preferably, a gasket is arranged between the valve body and the valve cover.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses, through setting up ring plate on valve seat, sealing washer is fixed on ring plate, because the cross section of ring plate is right triangle, can improve the pressure intensity of water below the valve core, can conveniently push away the valve core, can reduce the resistance when pumping, when stopping pumping, the valve core can carry out secondary sealing to sealing washer, further improve the sealing effect of this check valve. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model.

[0014] Figure 2 It is the left view solid section view of the utility model.

[0015] Figure 3 It is the utility model Figure 2 A place of the utility model in the middle.

[0016] In the drawing: 1, valve body;2, valve seat;3, valve cover;4, valve core;5, ring plate;6, sealing washer;7, guide rod;8, limit post;9, guide groove;10, recess;11, sealing gasket;12, gasket. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0018] All electronic components in the application have external controller control.

[0019] Embodiment one

[0020] Please refer to Figures 1-3 The utility model provides a kind of check valve, including check valve valve body 1, the middle part of the valve body 1 is equipped with valve seat 2, the top of the valve body 1 is equipped with valve cover 3, the valve cover 3 is equipped with valve core 4 being cooperated with valve seat 2, the inner wall of the valve seat 2 is equipped with ring plate 5, the middle upper portion of the ring plate 5 is equipped with sealing washer 6;The valve core 4 is equipped with guide rod 7, the valve cover 3 is equipped with limit post 8, the limit post 8 is equipped with guide groove 9 being cooperated with guide rod 7.

[0021] The valve body 1 is the shell of a single horizontal check valve on the market, the valve seat 2 is located in the middle of the valve body 1, the valve cover 3 is screwed on the top of the valve body 1, the guide rod 7 is integrally formed on the valve core 4, the limiting column 8 is integrally formed on the valve cover 3, the guide groove 9 is opened on the limiting column 8, the valve core 4 can slide in the guide groove 9 through the guide rod 7, and the movement of the valve core 4 can be guided, the valve core 4 can be pressed on the valve seat 2, the ring plate 5 is integrally formed on the inner wall of the valve seat 2, the sealing ring 6 is fixedly connected at the connection between the ring plate 5 and the valve core 4, the cross section of the ring plate 5 is a right triangle, which can increase the pressure that the valve core 4 bears when pumping water, and improve the sealing effect between the valve core 4 and the valve seat 2, when pumping water, the cross section of the ring plate 5 gradually decreases, the water can accelerate under the guidance of the ring plate 5, the water pressure will increase, which can conveniently push the valve core 4 away, and facilitate the passage of water, when stopping pumping water, the water below the valve core 4 will lose power, and the water above will press the valve core 4 tightly against the valve seat 2, so that the check valve can be closed, at this time, the valve core 4 will press the sealing ring 6 on the ring plate 5, which can further improve the sealing performance between the valve core 4 and the valve seat 2.

[0022] Specifically, the bottom of the valve core 4 is provided with a recess 10 in the shape of an inverted bowl, the recess 10 is located on the bottom surface of the valve core 4, and water can be stored in the recess 10, which can further increase the pressure of the water below on the valve core 4 and reduce the resistance when the valve core 4 is opened.

[0023] Among them, the valve core 4 is provided with a sealing gasket 11 matched with the valve seat 2, the sealing gasket 11 is sleeved on the valve core 4, and the sealing gasket 11 is located at the contact part of the valve core 4 and the valve seat 2, which can further improve the sealing performance.

[0024] On the basis of the above embodiment, specifically, the gasket 12 is arranged between the valve body 1 and the valve cover 3, the gasket 12 is located between the valve body 1 and the valve cover 3, which can avoid water leakage when the valve cover 3 is disassembled, and ensure the sealing performance of the check valve.

[0025] The contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A one-way horizontal check valve characterized by, The utility model relates to a single-way horizontal check valve body (1), the middle part of the valve body (1) is equipped with valve seat (2), the top of the valve body (1) is equipped with valve cover (3), the valve cover (3) is equipped with valve core (4) with valve seat (2) cooperation, the inner wall of valve seat (2) is equipped with ring plate (5), the middle upper portion of ring plate (5) is equipped with sealing ring (6).

2. A check valve according to claim 1, wherein: The valve core (4) is equipped with guide rod (7), the valve cover (3) is equipped with limiting post (8), the limiting post (8) is equipped with guide groove (9) with guide rod (7) cooperation.

3. A check valve according to claim 2, wherein: The bottom of the valve core (4) is equipped with recess (10) in inverted bowl shape.

4. A check valve according to claim 3, wherein: The valve core (4) is equipped with sealing gasket (11) with valve seat (2) cooperation.

5. A check valve according to claim 4, wherein: The valve body (1) is equipped with gasket (12) with valve cover (3).

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