One-way valve for coating fluid medium
By designing a check valve with a flat duckbill-shaped valve seat and a double sealing structure, the problems of easy clogging and poor sealing of traditional ball check valves have been solved, enabling wide applicability to coating media and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional ball-type check valves are prone to solidification and blockage during paint spraying, resulting in poor sealing, media backflow, and high manufacturing costs.
A one-way valve with a flat duckbill-shaped seat and a double sealing structure is designed. It utilizes an elastic sealing sleeve and a sealing gasket to expand and rebound under different pressures to ensure smooth flow and backflow prevention of the fluid medium. Wear-resistant materials are used to adapt to high-pressure environments.
It improves the applicability and sealing performance of fluid media, reduces manufacturing costs, and ensures smooth flow of fluid media under different pressures and prevents backflow.
Smart Images
Figure CN224107720U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to one -way valve technical field especially relates to a one -way valve for coating fluid medium. BACKGROUND
[0002] One -way valve is also called check valve or non -return valve, which is named after the fluid passing through its interior can only enter along one inlet direction, and the flow outlet medium cannot backflow, and is mainly used for fluid substances, including oil, water, gas, paint, etc.
[0003] Now the spraying machine and other equipment in the coating spraying construction site are usually used ball type one -way valve, but in the long -term use process, the following problems are found, first, the existing ball type one -way valve is used in the scene of coating medium, and the medium is easy to accumulate and solidify, second, the valve port of conventional one -way valve is easy to seal not tightly, resulting in medium backflow, the above two problems limit its application range, and the flow medium needs to be strictly limited to be normally applicable, finally, the manufacturing cost of traditional ball type one -way valve is also high, therefore, the utility model aims at designing a one -way valve for coating fluid medium to solve the above -mentioned problems. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a one -way valve for coating fluid medium to solve the problems of traditional ball type one -way internal easy solidification and blockage, resulting in medium backflow and relatively high manufacturing cost.
[0005] The utility model realizes the above -mentioned purpose through the following technical scheme: including valve body, one end of valve body is fixedly connected with valve seat through valve body connecting ring, fluid inlet end is set up at the end of valve seat, fluid outlet end is set up at the other end of valve body, the seat body of valve seat is flat duckbill shape and extends to fluid outlet end in the interior of valve body, the tail end of valve seat is closed pressure edge structure and both sides are equipped with valve seat hole, the outside of valve seat is equipped with elastic sealing sleeve, and the both sides of the inner wall of elastic sealing sleeve are equipped with sealing gasket.
[0006] Further, the one -way valve is composed of two parts of fluid inlet end and fluid outlet end.
[0007] Further, the elastic sealing sleeve and the sealing gasket are made of elastic wear -resisting material, and both are fixedly connected with the inlet end of valve seat through fixing ring.
[0008] Beneficial effects: 1, for the fluid medium such as paint, the narrower the nozzle under the small pressure, the more likely to produce accumulation and solidification, so the utility model discloses a large hole behind the narrow mouth, ensures the medium flow, at the same time, the elastic sealing sleeve and the sealing gasket double adhere to ensure the sealing under the small pressure, avoid the problem of backflow, and when the pressure increases, the elastic sealing sleeve and the sealing gasket have very high expansibility and resilience, ensure that the fluid medium can flow smoothly and check.
[0009] 2, compared with the traditional ball one-way valve, the utility model is more widely applicable, various fluid media are applicable, and its structure is simple, so the manufacturing cost is also lower, a large amount of manufacturing cost can be saved to improve product quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 The utility model structural schematic diagram
[0011] Fig. 2 The utility model internal structure schematic diagram
[0012] Fig. 3 The utility model explosion map.
[0013] In the drawing: 1-valve body, 2-valve body connecting ring, 3-valve seat, 4-fluid inlet end, 5-fluid outlet end, 6-valve seat hole, 7-elastic sealing sleeve, 8-sealing gasket, 9-fixing ring. DETAILED DESCRIPTION
[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a 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 ordinary skill in the art without creative labor belong to the scope of the utility model protection.
[0015] In combination with Figs. 1-3The utility model provides an one-way valve for coating fluid medium, including the valve body 1, the inside hollow of valve body 1, one end of valve body 1 is fixedly connected with valve seat 3 through valve body connecting ring 2, the end of valve seat 3 is equipped with fluid inlet end 4, the other end of valve body 1 is equipped with fluid outlet end 5, and valve body 1 is integrally formed structure, and the two parts of fluid inlet end 4 and fluid outlet end 5 are connected in series to form an integral whole, and valve body connecting ring 2 plays the role of connection fixation, and valve seat 3 is fixed on valve body connecting ring 2, and the seat body of valve seat 3 is flat duckbill shape and extends to fluid outlet end 5 inside valve body 1, for the fluid medium such as coating, the narrower the pipe orifice is, the easier the accumulation solidification is generated under the small pressure, so the utility model opens big hole behind narrow orifice, guarantees medium flow, the end of valve seat 3 is closed pressure edge structure and the both sides are equipped with valve seat hole 6, and elastic sealing sleeve 7 is attached to the outside of valve seat 3, and the shape of elastic sealing sleeve 7 is same with valve seat 3 and is attached to the end, and only under high pressure, coating can be pushed away, guarantee the sealing property under low pressure, the both sides of the inner wall of elastic sealing sleeve 7 are attached with sealing gasket 8, and the both sides are fixedly connected with the inlet end of valve seat 3 through fixed ring 9, and the double attachment of elastic sealing sleeve 7 and sealing gasket 8 guarantees the sealing property under small pressure, further avoids the problem of backflow, and when the pressure increases, the smooth flow of fluid medium is guaranteed, and elastic sealing sleeve 7 and sealing gasket 8 are made of elastic wear-resistant material, and the wear-resistant pressure resistance is high, so it has very high expansibility and resilience, can adapt to high pressure working environment, and can rebound quickly after the high pressure of fluid, continues to seal.
[0016] Working principle: under the condition of no pressure in the inside, the elastic sealing sleeve 7 is contracted under the action of the elasticity, and the sealing gasket 8 and the valve seat hole 6 are folded, and the flow is blocked, with the gradual increase of the inside pressure, the fluid medium pushes out the sealing gasket 8, the elastic sealing sleeve 7 expands, the outlet gradually increases, and the fluid medium flows out. When the pressure decreases, the sealing gasket 8 and the elastic sealing sleeve 7 rebound under the action of the contraction force, so that the outlet seals the fluid and cannot backflow.
[0017] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0018] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.
Claims
1. A check valve for a coating fluid medium, characterized by: The utility model relates to a valve body (1) one end is fixedly connected with valve seat (3) through valve body connecting ring (2), the valve seat (3) end is equipped with fluid inlet end (4), the valve body (1) other end is equipped with fluid outlet end (5), the valve seat (3) seat body is flat duckbill shape in the valve body (1) inside to the fluid outlet end (5) extension, the valve seat (3) end is closed pressure edge structure and its both sides are equipped with valve seat hole (6), the valve seat (3) outside is pasted with elastic sealing sleeve (7), the elastic sealing sleeve (7) inner wall both sides are pasted with sealing gasket (8).
2. A check valve for use in a coating fluid medium according to claim 1, characterized in that: The elastic sealing sleeve (7) and the sealing gasket (8) are made of elastic wear-resistant material, and both are fixedly connected with the inlet end of the valve seat (3) through the fixing ring (9).